Search Results — 2000 specimen records retrieved (1330 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC55164  Abies concolor Gilbert Muth 1979-8-1 12146 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC502913  Abies concolor Joseph P. Tracy 1927-6-12 8144 Humboldt Horse Mountain 1524 Comment
  RSA33416  Abies grandis Doris K. Kildale 1941-7-25 s.n. Humboldt Arcata Comment
  SDSU1549  Abies grandis W. A. Bemis 1964-4-11 254 Humboldt Mad River, HWY 299. 76 Comment
  UC502902  Abies grandis Joseph P. Tracy 1932-6-26 10261 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  BLMAR72  Abronia latifolia Jennifer Anthony-Wheeler 1994-5-18 72 Humboldt Samoa/manilla dunes, growing throughout dunes 6 Comment
  HSC27878  Abronia latifolia Clifton Raymond Chesbrough 1973-6-19 76 Humboldt 1/4 mi. W of the Samoa entrance to Samoa Bridge Comment
  HSC67579  Abronia latifolia J. P. Smith 1971-10-6 4946 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC16133  Abronia latifolia J. W. Johnson 1961-8-17 1050 Humboldt Arcata, ridge 8, Lanphere Farm, Samoa Peninsula Comment
  HSC69787  Abronia latifolia R. Kalal 1979-5-27 35 Humboldt Along Samoa Blvd. 3 Comment
  RSA0025081  Abronia latifolia I. L. Wiggins 1932-7-19 5888 Humboldt Near Clam Beach, eight miles north of Arcata. Comment
  SEINET5011048  Abronia latifolia Unknown 2002-8-19 83 Humboldt Sand beach N of rocky promontory and coast guard station. Comment
  CAS-BOT-BC330525  Acer circinatum L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  HSC37409  Acer circinatum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 504 Humboldt Along Lost Man Creek. 38 Comment
  HSC58053  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-8-1 11919 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC76199  Acer glabrum var. torreyi Overton, Butler 1979-8-2 12507 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  BLMAR746  Achillea millefolium Kate McGrath 2015-7-7 746 Humboldt Samoa Peninsula, Throughout the EPPA 1 Comment
  HSC58064  Achillea millefolium G. L. Clifton, Griswold 1979-8-1 11941 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC67891  Achillea millefolium J. P. Smith 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA26852  Achillea millefolium var. californica I. L. Wiggins 1940-7-10 s.n. Humboldt Big Lagoon. Comment
  HSC31126  Achlys triphylla J. O. Sawyer 1970-6-24 2261 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC100397  Achlys triphylla Carl C. Marshall Jun 1886 328 Humboldt Hills. Comment
  RSA183594  Achlys triphylla D. E. Anderson 1963-5-1 2201 a Humboldt 1 mile west of Hoopa Comment
  UC526759  Achnatherum occidentale subsp. californicum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9052 Humboldt near Blake lookout (along summit); Northern Coast Ranges, South Fork Mountain 1737 Comment
  UCD51130  Achnatherum occidentale subsp. californicum Don Hagar 1957-8-6 s.n. Humboldt Red Cap Prairie, west of Trinity Summit. 1828 Comment
  HSC98303  Acmispon micranthus D. R. Junell 1965-5-2 41 Humboldt 1 mi. S of Fairhaven on Samoa Peninsula 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
  HSC55153  Aconogonon davisiae G. L. Clifton, Griswold 1979-8-1 12099 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC55677  Actaea rubra Overton, Butler 1979-7-26 9924 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  UC1440273  Adiantum X tracyi L. L. Kiefer and D. Branscomb 1964-5-19 1406 Humboldt ca. 1 mi n Garberville (ravine above Hwy 101) 304 Comment
  HSC37414  Adiantum aleuticum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 508 Humboldt Along Lost Man Creek. 38 Comment
  HSC95886  Adiantum aleuticum Will Ferrand 2002-2-2 23 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  SEINET11722736  Adiantum aleuticum E. A. York 1990-1-10 2672 Humboldt USGS Redwood Field Station, Arcata Comment
  UCSB8229  Adiantum aleuticum Robbins, G. 1936-8-1 Humboldt Cliff above Van Duzen River, near Carlotta Comment
  POM182456  Adiantum jordanii Joseph P. Tracy 1914-5-14 4427 Humboldt Hook Stream banks 122 Comment
  UCD137190  Adiantum jordanii K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  CAS-BOT-BC202608  Aesculus californica Joseph P. Tracy 1941-6-15 16914 Humboldt Near Honeydew bridge. Mattole Valley 152 Comment
  HSC58330  Agastache urticifolia Overton, Butler 1979-8-2 12630 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC74197  Agastache urticifolia M. A. Baker 1980-7-22 3126 Humboldt Near Grogan Hole. 1676 Comment
  HSC34286  Agastache urticifolia K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  HSC34743  Ageratina occidentalis Thomas W. Nelson 1974-7-19 1672 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC57952  Ageratina occidentalis G. L. Clifton, Griswold 1979-7-31 11634 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC70407  Agoseris grandiflora M. A. Baker 1980-6-7 1877 Humboldt Near Ammon Creek 732 Comment
  HSC56444  Agoseris heterophylla Griswold, Butler 1979-7-12 7191 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  SEINET6998445  Agoseris heterophylla Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near west end of Bald Hills, southeast of Orick. Comment
  UC275458  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7038 A Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  UC582748  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1930-6-21 8775 A Humboldt Larrabee Valley; Northern Coast Ranges 701 Comment
  JEPS36268  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1921-6-12 5816 Humboldt 2500 ft Kneeland Prairie Comment
  UC1198339  Agrostemma githago Joseph P. Tracy 1899-4-23 310 Humboldt Eureka; Northern Coast Region 0 Comment
  UCD55636  Agrostis A. H. Murphy 1951-7-9 s.n. Humboldt 5 miles south of Ferndale. Bunker Hill Ranch. Comment
  UC186910  Agrostis alba Joseph P. Tracy 1907-7-20 2589 Humboldt ocean beach of Humboldt Bay; Northern Coast Region Comment
  CAS-BOT-BC127522  Agrostis capillaris L. R. Abrams 1916-7-18 6139 Humboldt At Trinidad. Comment
  HSC8785  Agrostis exarata D. E. Anderson 1961-8-25 1743 Humboldt Beach area 1.5 miles S of Trinidad. Comment
  UC186904  Agrostis exarata Joseph P. Tracy 1911-7-7 3386 Humboldt 3 mi nw Junction of Willow Creek with Trinity River; Northern Coast Ranges 914 Comment
  UC204531  Agrostis exarata Joseph P. Tracy 1918-7-21 5085 Humboldt around Humboldt Bay (mossy bog); Northern Coast Ranges, Humboldt Hill 91 Comment
  UC187118  Agrostis hallii Joseph P. Tracy 1911-7-4 3288 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity 182 Comment
  CAS-BOT-BC138874  Agrostis microphylla Joseph P. Tracy 1935-5-25 13857 Humboldt Fort Seward. 106 Comment
  HSC98859  Agrostis oregonensis Cara Witte 2008-8-5 990 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  UC552711  Agrostis thurberiana Joseph P. Tracy 1935-7-27 14281 Humboldt Corral Prairie Trinity Summit 1584 Comment
  SBBG21792  Ailanthus altissima D. Myrick 1964-7-26 978 Humboldt Hwy 299, ca. 15 mi E of Arcata 762 Comment
Read comments
Feb 4 2016
  HSC33763  Aira caryophyllea John S. Palmer 1975-5-24 369 Humboldt Off Samoa Blvd., across from boat landing Comment
  HSC70927  Aira caryophyllea R. York 1980-5-18 578 Humboldt Near Black Mtn 792 Comment
  SEINET10839747  Aira caryophyllea Harold E. Parks, Susan T. Parks Parks 5850 Humboldt Spruce Cove, Trinidad. Comment
  RSA256299  Aira praecox J. R. Reeder, C. G. Reeder 1973-5-26 6186 Humboldt 2 miles S of Orick in Humboldt State Park, near Pacific Shore. Comment
  HSC2886  Alisma triviale Rollin Sparrowe 1962-5-16 23 Humboldt S of road Comment
  CAS-BOT-BC460747  Allium amplectens C. C. Harris; S. K. Harris 1936-6-24 645 Humboldt At point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River. 701 Comment
  HSC2958  Allium amplectens R. Spellenberg 1965-6-14 1128 Humboldt 6 mi. E of Kneeland at Kneeland Airport Comment
  UC594243  Allium amplectens S. K. Harris, J. P. Tracy and H. S. Yates 1936-6-17 3402 Humboldt crossing of Little Van Duzen River between Bridgeville and Dinsmore's; Little Van Duzen River 710 Comment
  HSC32884  Allium bolanderi var. bolanderi Thomas W. Nelson, James Nelson 1973-5-28 936 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC36505  Allium falcifolium Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1886 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  RSA249434  Allium falcifolium D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5600 Humboldt Mt. Lassic and 2 smaller peaks to immediate E. 1768 Comment
  HSC32893  Allium hoffmanii Thomas W. Nelson 1973-5-30 977 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  SEINET4208044  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U.S. Hwy. 101 ca 1.0 miles west of Orick.; 0 4 Comment
  HSC2987  Allium unifolium J. F. Knezevich 1968-5-14 438 Humboldt 11 mi. S of Ferndale on rd. to Cape Mendocino 305 Comment
  CAS-BOT-BC476627  Allium unifolium Carl B. Wolf 1937-8-11 8900 Humboldt Fleener Creek, 1/2 mi. so. of Centerville. 45 Comment
  POM170198  Allium unifolium Jos Burtt Davy 1899-6-11 5444 Humboldt Between Hubbard s Station and Elk Prairie. Comment
  UC1197954  Alnus rhombifolia Joseph P. Tracy 1922-12-31 6134 Humboldt Cummings Creek Northern Coast Ranges, Van Duzen River (near Carlotta) 30 Comment
  HSC13115  Alnus rubra C. Kline, D. Santana Oct 1970 31 Humboldt HSC Campus Comment
  HSC69582  Alnus rubra R. Kalal 1979-5-18 66 Humboldt Union St. between 11th and 12th St. 34 Comment
  UCD110034  Alnus rubra Linda M. Barker 1976-6-14 1602 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1103308  Alopecurus aequalis Joseph P. Tracy 1927-8-7 8320 Humboldt opposite mouth of Willow Creek Lack Pond; Northern Coast Ranges, Trinity R. Valley, Lack Pond 152 Comment
  UC573793  Alopecurus pratensis H. L. Person 1932-5-11 Humboldt Redwood Hwy. between Arcata and Eureka; Eureka Quad. 0 Comment
  UCD55973  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton. 30 Comment
  SEINET11855057  Ambrosia artemisiifolia J. P. Tracy 1950-1 19313 Humboldt Frank Graham's place. Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC13710  Ambrosia chamissonis Carl B. Wolf 1927-8-29 1213 Humboldt Devil's Gate, south of Cape Mendocino. Comment
  HSC5661  Ambrosia chamissonis J. W. Johnson 1961-8-17 1022 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC5662  Ambrosia chamissonis David Adams Oct 1960 Humboldt N bank of the Mad River near mouth 0 Comment
  RSA26851  Ambrosia chamissonis I. L. Wiggins 1940-7-10 9486 Humboldt Big Lagoon. Comment
  HSC90391  Ambrosia chamissonis Jean Hanson 1980-8-28 116 Humboldt In Humboldt Bay, city of Eureka; Indian (Gunther) Island, W end of the island Comment
  HSC48400  Amelanchier alnifolia var. semiintegrifolia Brad Klipfel 1973-6-10 87 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS44699 Image available Amelanchier alnifolia var. semiintegrifolia Lincoln Constance 1934-6-11 845 Humboldt n Dyerville Flat South Fork Eel River, Bull Creek Region (trail along e bank of South Fork Eel River) Comment
  RSA183624  Amelanchier florida D. E. Anderson 1964-4-24 3541 Humboldt 0.5 mile from Hwy 299, on Titlow Hill road. Comment
  UC1198750  Amelanchier utahensis Joseph P. Tracy 1912-5-5 3579 Humboldt Eureka Northern Coast Region (at the Azalea Block) 0 Comment
  CHSC68792  Ammophila arenaria Vernon Oswald 1997-6-5 8535 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.0 mi south of Hwy. 255. 6 Comment
  UC584207  Ammophila arenaria David D. Keck and J. Clausen 1935-6-16 3387 Humboldt Mouth of Little River Little River Comment
  UC1199417  Anaphalis margaritacea Joseph P. Tracy 1937-7-29 15578 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC175184  Anaphalis margaritacea Joseph P. Tracy 1913-9-9 4400 Humboldt Big Lagoon; Northern Coast Ranges 30 Comment
  HSC37663  Anaphalis margaritacea R. Sutherland 1976-8-18 14 .18876 Humboldt 195 Comment
  CAS-BOT-BC391784  Anemone deltoidea Mrs. H. C. Cantelow 1936-5-17 1387 Humboldt About 11 mi. E. of Orick Comment
  HSC37344  Anemone deltoidea Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 476 Humboldt Along Lost Man Creek. 38 Comment
  SBBG2107  Anemone deltoidea H. and M. Dearing 1933-5-16 360 Humboldt Weott Comment
  CAS-BOT-BC391787  Anemone deltoidea Joseph P. Tracy 1932-7-13 10489 Humboldt Klamath Mountains, Trinity Summit. Woods near Corral Prairie 1524 Comment
  UC1197378  Angelica genuflexa Joseph P. Tracy 1940-9-26 16733 Humboldt 2 mi s of Fields Landing (Near Still Ranch) 6 Comment
  UC1197387  Angelica genuflexa Joseph P. Tracy 1939-10-6 16504 Humboldt opposite to Sunset Cemetary (Bucksport); Bucksport 6 Comment
  UC1222615  Angelica hendersonii Joseph P. Tracy 1950-9-10 19352 Humboldt Bear River Ridge 609 Comment
Read comments
Oct 12 2007
  CAS-BOT-BC271496  Anisocarpus madioides Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC94796  Anisocarpus madioides R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 835 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air mi. N of Mattole Road & 3 air mi. W of Hwy 101. 243 Comment
  UC302293  Anisocarpus madioides Joseph P. Tracy 1926-6-13 7605 Humboldt near Blue Lake; Northern Coast Ranges 152 Comment
  HSC41291  Antennaria suffrutescens Brad Klipfel 1974-7-27 489 Humboldt Horse Mtn. Comment
  HSC56940  Antennaria suffrutescens Overton, Butler 1979-7-23 9419 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC33171  Anthemis cotula Thomas W. Nelson 1973-8-19 1111 Humboldt McKeown Ranch N of Dinsmore, floodplain of Mad River Comment
  HSC4669  Anthemis cotula Frances Oldridge 1945-1 Humboldt Eureka Comment
  RSA254784  Anthemis cotula Thomas W. Nelson 1973-8-19 1111 Humboldt McKeown Ranch north of Dinsmore Comment
  HSC8934  Anthoxanthum odoratum H. E. Parks, S. T. Parks Apr 1952 24444 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC8942  Anthoxanthum odoratum Gerald T. Rood 1962-5-6 11 Humboldt Kneeland Road ca. 1 mi. W of Barry Rd. Comment
  UC187269  Anthoxanthum odoratum Joseph P. Tracy 1906-4-29 2424 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UC37276  Anthoxanthum odoratum Harley P. Chandler May, 1901 1106 Humboldt North Coast Ranges, Humboldt Bay Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  UC582470  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1933-8-30 13004 Humboldt Horse Mountain; Northern Coast Ranges 1066 Comment
  SD51267  Apocynum androsaemifolium Darley F. Howe 1961-8-2 3117 Humboldt 23.5 miles east of Orick on Bald Mountain Road 915 Comment
  CAS-BOT-BC392167  Aquilegia formosa Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UC162852  Aquilegia formosa Joseph P. Tracy 1908-6 2739 Humboldt nw slope of Buck Mountain Northern Coast Ranges 762 Comment
  HSC56075  Aquilegia formosa var. truncata G. L. Clifton, Griswold 1979-7-31 11751 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC56245  Aquilegia formosa var. truncata Walter Overton 1979-8-1 12348 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  HSC100611  Aquilegia truncata Carl C. Marshall Jun 1887 Humboldt Everywhere. Comment
  HSC57418  Arabis divaricarpa var. interposita G. L. Clifton, Griswold 1979-7-26 10181 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC57322  Arabis glabra Walter Overton, Butler 1979-7-23 9542 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  HSC73687  Arabis glabra M. A. Baker 1980-7-15 2980 Humboldt Near Whiting Ridge. 1341 Comment
  UC492235  Arabis glabra Joseph P. Tracy 1932-7-11 10423 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC73601  Arabis suffrutescens M. A. Baker 1980-7-23 3148 Humboldt Near Orleans Mtn. 1859 Comment
  HSC3249  Aralia californica H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  UCSB26628  Aralia californica Keefe, Joseph 1967-7-8 Humboldt Junction Crannell Road and Little River Drive, north of Eureka 6 Comment
  SDSU2557  Aralia californica Harvey 1938-8-13 2247 Humboldt Humbolt State Redwood Park. Comment
  CAS-BOT-BC128652  Arbutus menziesii L. B. Kildale 1930-8-3 10489 Humboldt Chaparral Mt. at Bug Creek Comment
  UC1196880  Arbutus menziesii F. C. Gregory 1919-10-10 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC249508  Arbutus menziesii Joseph P. Tracy 1922-4-30 6004 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198673  Arctostaphylos Joseph P. Tracy 1937-4-3 15248 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC582721  Arctostaphylos Joseph P. Tracy 1937-4-3 15247 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC582722  Arctostaphylos Joseph P. Tracy 1937-4-3 15246 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC585948  Arctostaphylos Joseph P. Tracy 1936-8-2 15075 Humboldt French Camp Ridge 1066 Comment
  UC902044  Arctostaphylos Joseph P. Tracy 1949-8-4 18406 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  CAS-BOT-BC24093  Arctostaphylos canescens subsp. canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast range Horse Mt. 1524 Comment
  HSC98568  Arctostaphylos canescens subsp. canescens Cara Witte 2008-7-7 836 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/2 mile southeast of Horse Mountain Mine. 1308 Comment
  RSA20914  Arctostaphylos canescens var. candidissima C. B. Wolf 1937-8-13 9229 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC23752  Arctostaphylos columbiana Joseph P. Tracy 1934-7-2 13293 Humboldt Vicinity of Trinidad 60 Comment
  CAS-BOT-BC23814  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Berry Mt. betweein Redwood Creek and Trinity River. Comment
  CAS-BOT-BC23816  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt Fickle Hill, 6 mi. SE of Arcata 609 Comment
  CAS-BOT-BC23822  Arctostaphylos columbiana Carl B. Wolf 1930-10-29 1040 Humboldt Old Coast Road, 7 miles south of Honeydew Post Office. 304 Comment
  HSC62325  Arctostaphylos columbiana Ruby Van Deventer 1959-2-28 Humboldt Patrick's Point on Coastal Bluff Comment
  JEPS38611  Arctostaphylos columbiana W. L. Jepson 1921-8-11 9410 Humboldt Big Lagoon 15 Comment
  UC183708  Arctostaphylos columbiana Joseph P. Tracy 1903-9-9 4403 Humboldt Big Lagoon Northern Coast Ranges 30 Comment
  UC585911  Arctostaphylos columbiana Joseph P. Tracy 1927-8-14 8331 Humboldt Big Lagoon 152 Comment
  UC585912  Arctostaphylos columbiana Joseph P. Tracy 1932-2-28 9772 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  UC585921  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC585922  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12582 Humboldt summit of barren ridge 1 mi s road from Hoopa westward to Bair's; Hoopa Mountain 1219 Comment
  UCD50758  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1167 Humboldt 20 road miles east of Hwy. 101 on Bald Hills Road (from Orick). Comment
  RSA632808  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27773 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA633014  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27807 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  RSA633024  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27809 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  UCD52079  Arctostaphylos manzanita Harold E. Parks; Joseph P. Tracy 1936-5-16 11304 Humboldt Near Gasquet; mountain slopes; north side of Middle Fork of Smith River; on old Gasquet Toll Road. 609 Comment
  CAS-BOT-BC38837  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1920-9-14 s.n. Humboldt Mts. near Willow Creek (1st ridge west of Trinity River on Willow Creek Road) Comment
  JEPS38924  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15247 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC48822  Arctostaphylos nevadensis Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 33 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  CAS-BOT-BC40069  Arctostaphylos nevadensis subsp. knightii Doris K. Kildale 1926-8-22 2574 Humboldt Bald Hills near Tomlinson's on Orick-Martin's Ferry road. Comment
  CAS-BOT-BC46637  Arctostaphylos patula J. H. Thomas 1949-6-13 920 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (E. of town of Orleans). 1676 Comment
  HSC48821  Arctostaphylos patula Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 32 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC585903  Arctostaphylos patula Joseph P. Tracy Jul 16 1930-Jul 19 1930 9055 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  CAS-BOT-BC46196  Arctostaphylos stanfordiana L. B. Kildale 1930-8-3 s.n. Humboldt Chaparral Mt. at Bug Creek. Comment
  CAS-BOT-BC43978  Arctostaphylos uva-ursi Doris K. Kildale 1927-9-9 3306 Humboldt Big Lagoon Comment
  CAS-BOT-BC43981  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17502 Humboldt Eureka 45 Comment
  CAS-BOT-BC43983  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17499 Humboldt Eureka 45 Comment
  CAS-BOT-BC47214  Arctostaphylos uva-ursi D. E. Breedlove 1962-6-7 3034 Humboldt 1.5 mi. s. of Samoa on peninsula on western side of Humboldt Bay. Comment
  CAS-BOT-BC47216  Arctostaphylos uva-ursi Joseph P. Tracy 1940-10-3 s.n. Humboldt Near Samoa, on Humboldt Bay. 6 Comment
  HSC33172  Arctostaphylos uva-ursi Thomas W. Nelson 1974-4-20 1181 Humboldt Elk Head, N of Trinidad Comment
  HSC7728  Arctostaphylos uva-ursi Unknown 1960-4-30 Humboldt Samoa peninsula 6 mi. W of Arcata Comment
  RSA152314  Arctostaphylos uva-ursi Joseph P. Tracy s.n. Humboldt Eureka. 46 Comment
  RSA636928  Arctostaphylos uva-ursi Jon E. Keeley, J. O. Sawyer 1996-10-11 27665 Humboldt Landfill Christensen Nature Conservancy Reserve, Arcata. 25 Comment
  UC180220  Arctostaphylos uva-ursi Joseph P. Tracy 1914-8-30 4594 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  SEINET11984847  Arctostaphylos uva-ursi Unknown 1965-1 554 Humboldt 1.3 mi S of Samoa, Samoa Peninsula Comment
  JEPS79810  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 b Humboldt Brett Hole Trinity summit, Brett Hole (Head of) 1828 Comment
  POM232100  Armeria maritima subsp. californica I. L. Wiggins 1930-7-11 4683 Humboldt Near Samoa Comment
  HSC44320  Arnica cernua Brad Klipfel 1975-6-17 669 Humboldt Horse Mtn. Comment
  HSC98121  Arnica cernua Cara Witte 2007-5-24 119 Humboldt Along National Forest 1. Approximately 1 mile south of intersection with 6N38 and 6N36. 1476 Comment
  CAS-BOT-BC82430  Arnica discoidea Doris K. Kildale 1926-6-27 2190 Humboldt McClellan Mountain - Sweasey Lake 822 Comment
  HSC40999  Arnica discoidea J. O. Sawyer 1975-10-17 2709 Humboldt Along Big Hill Rd. 915 Comment
  HSC75557  Arnica discoidea J. O. Sawyer, R. J. Cole 1977-7-3 3005 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  RSA43686  Arnica discoidea H. M. Pollard 1948-7-21 s.n. Humboldt Near Orleans. Comment
  HSC67028  Artemisia douglasiana J. P. Smith 1970-6-7 3811 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC67041  Artemisia douglasiana J. P. Smith 1971-10-9 5032 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC275465  Artemisia douglasiana Joseph P. Tracy 1925-11-1 7305 Humboldt Shively Northern Coast Ranges Comment
  CAS-BOT-BC90867  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  HSC12354  Artemisia pycnocephala Steve Dorei 1970-10-7 146 Humboldt McKinleyville Comment
  HSC4747  Artemisia pycnocephala H. E. Parks, S. T. Parks Jun 1952 24495 Humboldt Samoa Comment
  SEINET190483  Artemisia pycnocephala H. E. Parks Aug 1941 24186 Humboldt Little River State Park Comment
  UC1222994  Artemisia pycnocephala Joseph P. Tracy 1947-8-31 17929 Humboldt Samoa Sand Dunes Comment
  CAS-BOT-BC97241  Artemisia suksdorfii H. E. Parks 1940-5-1 24178 Humboldt Little River Comment
  CAS-BOT-BC97243  Artemisia suksdorfii Carl B. Wolf 1927-8-29 1220 Humboldt [Devil's] Devils Gate, south of Cape Mendocino Comment
  SEINET4343124  Artemisia tridentata subsp. wyomingensis Leila M. Shultz, John S. Shultz 1987-9-17 10750 Humboldt South of I-80, mile post 200 Comment
  HSC56089  Aruncus dioicus var. acuminatus G. L. Clifton, Griswold 1979-7-31 11781 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC154230  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC400537  Asarum caudatum Alice Eastwood 1907-4-21 4 Humboldt Trinidad Comment
  HSC44110  Asarum caudatum Barbara Kelly 1977-4-23 307 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  BLMAR236  Asarum caudatum Jennifer Anthony-Wheeler 1996-9-26 236 Humboldt King range, growing near boardwalk by horsetails in bear creek 548 Comment
  HSC3274  Asarum hartwegii D. E. Anderson 1965-5-8 3647 Humboldt About 3 mi. N of Willow Creek along rd. on E side of Trinity River. Comment
  UC1197610  Asclepias cordifolia Joseph P. Tracy 1935-7-31 14392 Humboldt ridge connecting Trinity Summit with Salmon Summit; Devil's Backbone 1676 Comment
  UC154171  Asclepias fascicularis Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC54217  Aspidotis densa Griswold, Butler 1979-7-12 7281 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  SEINET196546  Aster chilensis Ynez Whilton Winblad 1941-6-24 Humboldt Between Garberville and Pepperwood. Comment
  HSC57103  Asyneuma prenanthoides Overton, Butler 1979-7-25 9836 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  CAS-BOT-BC69525  Athyrium filix-femina subsp. cyclosorum Ira L. Wiggins 1957-6-19 14127 Humboldt 2.5 mi. w. of Pepperwood. Comment
  UC370619  Athyrium filix-femina var. cyclosorum H. E. Parks June, 1925 3234 Humboldt Orick Comment
  JEPS35139  Athyrium filix-femina var. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt hill above Weott Comment
  HSC93956  Atriplex gmelinii var. gmelinii Gordon Leppig 1999-10-25 1266 Humboldt Eureka, PALCO Marsh 1 Comment
  HSC89858  Atriplex prostrata Leonel Arguello 1989-9-9 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  HSC38380  Avena barbata Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  SEINET4175775  Avena barbata Joseph P. Tracy 1906-4-29 2426 Humboldt Edge of field near Bucksport Comment
  UCR122378  Baccharis glutinosa George K. Helmkamp, E. A. Helmkamp 2001-7-8 7006 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  POM126120  Baccharis pilularis Joseph P. Tracy 1923-10-6 6565 Humboldt Eureka Comment
  UC127578  Baccharis pilularis Mrs. M. H. Manning 1901-1-1 Humboldt Comment
  HSC47014  Baccharis pilularis subsp. consanguinea Sheila Logan 1978-11-23 223 Humboldt Manila Sand Dunes, Manila; 1/4 mile W of junction with Samoa Blvd. and Redwood Gun club 6 Comment
  HSC26396  Baccharis pilularis subsp. pilularis T. O. Osborne 1970-9-16 30 Humboldt Trinidad Bay, Prisoner Rock Comment
  UC275466  Balsamorhiza deltoidea Joseph P. Tracy 1925-5-17 6984 Humboldt near South Fork of Trinity River Valley; Trinity River Valley 182 Comment
  HSC57311  Barbarea verna Terry Griswold, Marvin Butler 1979-7-10 6301 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC82029  Bellardia trixago Thomas W. Nelson, Jane P. Nelson 1980-5-25 5344 Humboldt Along Alderpoint-Blocksburg Rd., just SE of bridge over N Dobbyn Creek 152 Comment
  UC204749  Bellis perennis Joseph P. Tracy 1918-4-7 4864 Humboldt near Trinidad; Northern Coast Ranges 30 Comment
  CAS-BOT-BC48160  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3416 Humboldt Bald Mountain ridge - Under forest at edge of Snow Camp Meadow, near base of Snow Camp Mt., at head of high long ridge 1432 Comment
  HSC57111  Berberis aquifolium var. aquifolium Overton, Butler 1979-7-25 9852 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 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
  HSC24105  Berberis aquifolium var. repens J. O. Sawyer 1971-6-17 2388 Humboldt Along trail slopes above Horse Linto Creek 1341 Comment
  CAS-BOT-BC75677  Berberis nervosa L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp. 1219 Comment
  HSC31569  Berberis nervosa Glenn McGourty 1974-5-11 39 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC81928  Berberis nervosa Thomas W. Nelson, Jane Nelson 1979-7-3 4951 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC99384  Berberis nervosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 33 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA24183  Berberis pinnata C. B. Wolf 1941-3-1 9974 Humboldt Kneeland Prairie, 1/8 mi. s.e. of Kneeland school. 762 Comment
  UCSB8245  Blechnum spicant Robbins, G. 1936-8-1 Humboldt Near Strong's Station. Comment
  UC492236  Boechera acutina Joseph P. Tracy 1932-7-11 10396 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UCD114455  Boechera platysperma Joseph P. Tracy 1932-7-12 10458 Humboldt Klamath Mountains, Trinity Summit. Rocky exposed places, head of Brett Hole. 1828 Comment
  RSA465618  Boisduvalia densiflora var. densiflora H. M. Pollard 1948-8-12 s.n. Humboldt Near Orleans. Comment
  HSC93955  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1999-10-25 1268 Humboldt Hwy. 101, mile marker 61.40 2 Comment
  HSC48730  Boschniakia strobilacea J. Pageau, Jimerson, E. Toth 1979-6-13 522 Humboldt Creek timber sale unit 7 549 Comment
  HSC44566  Boschniakia strobilacea R. York 1978-5-18 173 Humboldt Near Bluff Creek Trail 671 Comment
  CAS-BOT-BC95327  Bowlesia incana Dr. A. Kellogg; W. G. W. Harford 1868-1-1 297 Humboldt unspecified Comment
  RSA466744  Boykinia major Anstruther Davidson 1918-07 3340 Humboldt Eel River. Comment
  CAS-BOT-BC420261  Boykinia occidentalis Ira L. Wiggins 1930-7-22 4694 Humboldt along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  HSC25680  Boykinia occidentalis Tim Baroni 1971-8-1 150 Humboldt 8 mi. E of Petrolia on the Mattole River Comment
  POM232040  Boykinia occidentalis I. L. Wiggins 1930-7-22 4694 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  UC1198853  Boykinia occidentalis Joseph P. Tracy 1927-6-19 8191 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  UC420420  Boykinia occidentalis Mrs. M. H. Manning 1901-4 55 Humboldt near Hupa; near Hupa Comment
  HSC98960  Brassica nigra Cara Witte 2007-7-24 573 Humboldt Ammon Ridge Road. At intersection with 5N15. 1441 Comment
  HSC95592  Brassica rapa Andrea Pickart 2002-3-31 19 Humboldt Arcata Marsh, R. Gearhart marsh 0 Comment
  CAS-BOT-BC106289  Brickellia californica E. G. Johnston 1931-8-1 s.n. Humboldt Myers, S. Fork Eel River Comment
  RSA695640  Brickellia californica J. Russell Bruff 1937-8-17 932 Humboldt Richardson Grove, bed of Eel River. Comment
  HSC79436  Briza minor Kenneth Clark 1980-6-14 664 Humboldt Shelter Cove, lower alluvial terrace of Dead Man's Gulch 30 Comment
  HSC35610  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2022 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  HSC35619  Brodiaea elegans subsp. elegans Thomas W. Nelson, B. Reinhardt 1975-7-30 2114 Humboldt E of Pilot Rock Comment
  HSC35940  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1975-7-15 2033 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  HSC69895  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1977-7-29 3637 Humboldt Beside SR 36 at head of Larabee Valley 823 Comment
  UC1225870  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1942-6-15 17125 Humboldt near Redcrest resort; Englewood 91 Comment
  HSC58761  Bromus carinatus var. carinatus Walter Overton, Marvin Butler 1979-7-26 10101 Humboldt Near Cold Spring, close to the town of Willow Creek. 1417 Comment
  UC1145186  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-31 5332 Humboldt Wolverton Gulch near Hydesville; Wolverton Gulch 91 Comment
  UC37585  Bromus carinatus var. carinatus Joseph Burtt Davy 1899-6-11 5408 Humboldt Summit above Hubbard's Station Comment
  HSC9214  Bromus carinatus var. marginatus R. I. Bonn 1965-10-1 Humboldt 2 mi. N of Bridgeville on May Ranch. 732 Comment
  UC1145182  Bromus diandrus Joseph P. Tracy 1950-6-15 18775 Humboldt 5 mi n of Harris (Mail Ridge); Mail Ridge 944 Comment
  HSC70478  Bromus laevipes Gail Newton 1980-7-20 1634 Humboldt Near Bell Swamps 1426 Comment
  UC188957  Bromus racemosus J. Burtt Davy and W. C. Blasdale 1899-7-30 6188 Humboldt Bear River Ridge; North Coast Ranges, Bear River Ridge Comment
  CAS-BOT-BC161605  Bromus sterilis Joseph P. Tracy 1933-6-13 12601 Humboldt North Coast Ranges. Bair's Ranch on Redwood Creek. 914 Comment
  SEINET200633 Image available Bromus sterilis Joseph P. Tracy 1921-5-30 5493 Humboldt Kneeland Prairie. Comment
  UC204532  Bromus sterilis Joseph P. Tracy 1916-5-31 4698 Humboldt Northern Coast Ranges, along Eel River from South Fork to Scotia, Holmes Flat Holmes Flat; Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  HSC40688  Bromus tectorum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2871 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  HSC58750  Bromus vulgaris Overton, Butler 1979-7-24 9617 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 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
  CAS-BOT-BC233746  Buddleja davidii Henry M. Pollard 1947-8-9 s.n. Humboldt Klamath River near Harley Place, Orleans Region Comment
  HSC64071  Cakile maritima J. P. Smith 1971-10-6 4956 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC673072  Cakile maritima Joseph P. Tracy 1940-9-21 16724 A Humboldt near Samoa (on Humboldt Bay); Humboldt Bay 3 Comment
  HSC31340  Cakile maritima Larry E. DeBuhr, G. Wallace 1972-5-22 608 Humboldt Prairie Creek Redwoods State Park Comment
  CAS-BOT-BC185470  Calamagrostis canadensis Joseph P. Tracy 1932-7-14 10553 Humboldt Trinity Summit. Klamath Mountains. Corral Prairie. 1524 Comment
  SD112830  Calamagrostis canadensis D. F. Howe 1961-8-1 3103 Humboldt 6 miles north of Trinidad on Highway 101 Comment
  CAS-BOT-BC185314  Calamagrostis foliosa Kenneth Clark 1980-5-10 641 Humboldt Shelter Cove. In the area of the Point. 1 Comment
  CAS-BOT-BC185317  Calamagrostis foliosa Joseph Burtt Davy 1900-5-1 6602 Humboldt Hardy Creek. Comment
  UC1146639  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1728 Humboldt Mattole River Comment
  UC552721  Calamagrostis koelerioides Joseph P. Tracy 1935-7-30 14371 Humboldt Salmon Summit 2011 Comment
  UC187252  Calamagrostis nutkaensis J. P. Tracy 1901-6-30 1192 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC64308  Calandrinia ciliata J. P. Smith, J. O. Sawyer 1976-5-2 8617 Humboldt 1.5 mi. N of Willow Creek on Hwy. 96 61 Comment
  RSA46654  Calocedrus decurrens Doris K. Kildale 1937-9-14 15359 Humboldt Grouse Mountain Comment
  UC535782  Calochortus amabilis Eleanor Armstrong 1934-5-25 Humboldt n of Redway Comment
  UC1197682  Calochortus coeruleus Joseph P. Tracy 1932-7-15 10582 Humboldt e of Corral Prairie; Trinity Summit 1828 Comment
  SEINET12044651  Calochortus elegans var. nanus M. S. Jussel 1931-1 s.n. Humboldt 20 mi N of Garberville Comment
  SEINET4169987  Calochortus pulchellus Unknown 1948-6-13 18050 Humboldt Harris 610 Comment
  CAS-BOT-BC494359  Calochortus tolmiei W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  CAS-BOT-BC494360  Calochortus tolmiei Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  CAS-BOT-BC494368  Calochortus tolmiei M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles n. of Garberville Comment
  UC1197686  Calochortus tolmiei Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3637 Humboldt near Eureka (Ocean View Cemetery); Northern Coast Region 0 Comment
  UC502923  Caltha biflora Joseph P. Tracy 1932-7-17 10671 Humboldt Ridges east of Corral Prairie, Trinity Summit; Klamath Mountains. 1828 Comment
  HSC56155  Caltha leptosepala G. L. Clifton, Griswold 1979-8-1 12016 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC16573  Calypso bulbosa S. G. Estes 1964-4-25 2 Humboldt May Ranch, 2 mi. N of Bridgeville Comment
  RSA183504  Calypso bulbosa D. E. Anderson 1965-5-15 3683 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie Road Comment
  CDA38662  Calystegia silvatica David Juliano 2010-6-17 PDR# 1535024 Humboldt Eureka. 0 Comment
  HSC59560  Calystegia soldanella Rick Lundquist 1979-5-16 89 Humboldt N spit, across from the Samoa boat ramp N of US Coast Guard Station 0 Comment
  SEINET3992218  Camassia leichtlinii Unknown 1942-5-16 17331 Humboldt Redway (near Garberville) 152 Comment
  HSC16539  Camissonia cheiranthifolia Francis Winter 1960-5-6 Humboldt Mouth of Mad River, N of Arcata Comment
  HSC90189  Camissonia cheiranthifolia Jean Hanson 1980-5-24 53 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  CAS-BOT-BC160234  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Peter H. Raven; Richard Snow 1958-7-21 13661 Humboldt Cape Mendocino Comment
  CHSC10102  Camissoniopsis cheiranthifolia subsp. cheiranthifolia J. W. Johnson 1961-8-17 1044 Humboldt Arcata. Sand dune fields, Lanphere Farm. Comment
  JEPS31757  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Milo S. Baker 1923-8-4 183 Humboldt about 2 mi n Big Lagoon (on sand bar); Stone Lagoon Comment
  CAS-BOT-BC160237  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Doris K. Kildale 1925-9-28 1356 Humboldt Samoa Peninsula Comment
  SEINET10939001  Campanula prenanthoides Overton 1979-7-24 OVERTON 9585 Humboldt Near Titlow Hill, on the Willow Creek quad., close to the town of Willow Creek 1250 Comment
  CDA42339  Campanula prenanthoides T. C. Fuller 1962-8-6 9350 Humboldt Highway 299 to Blue Lake, 4.8 miles west of Willow Creek. 0 Comment
  SEINET10462925  Campanula prenanthoides Lincoln Constance 1934-6-11 Constance 854 Humboldt LOWER LOOK PRAIRIE, AND BULL CR. ROAD TO DYERVILLE Comment
  SEINET10462986  Campanula prenanthoides Ira L. Wiggins 1930-7-22 Wiggins 4690 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  SEINET10462989  Campanula prenanthoides Tracy 1935-7-25 TRACY 14248 Humboldt Trinity Summit, wooded hillsides, lower end of Brett Hole 1585 Comment
  SEINET10462993  Campanula prenanthoides Chandler 1901-6-14 CHANDLER 1476 Humboldt Klamath River; Orleans to Somes Bar 305 Comment
  SEINET10463026  Campanula prenanthoides Ira L. Wiggins 1930-7-22 Wiggins 4690 Humboldt ALONG BANK OF REDWOOD CR BTWN BLUE LAKE & WILLOW CR Comment
  SEINET10463112  Campanula prenanthoides Willis L. Jepson Jepson s.n. Humboldt S FORK OF EEL RIVER, BIG HORSE MTN. Comment
  SEINET10463306  Campanula prenanthoides Pollard 1948-7-23 POLLARD s.n. Humboldt REECE POINT NEAR ORLEANS Comment
  SEINET10840312  Campanula prenanthoides Mcgregor 1921-8-17 MCGREGOR s.n. Humboldt Abandoned road grade, Oriels Comment
  SEINET10873256  Campanula prenanthoides Willis L. Jepson Jepson s.n. Humboldt Big Heorse Mountain Comment
  SEINET10905895  Campanula prenanthoides Aven Nelson, Ruth A. Nelson 1977-7-30 Nelson 3662 Humboldt In dry oak woodland beside State Route 36 about 1 mile east of Dinsmore. T1N R5E SEC.3 732 Comment
  UC416597  Campanula prenanthoides Harley P. Chandler 1901-6-14 1476 Humboldt Orleans to Somes Bar; Klamath River 304 Comment
  HSC34270  Campanula scouleri K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  BLMAR593  Campanula scouleri Jennifer Wheeler 2010-7-23 593 Humboldt Lacks Creek, along Pine Ridge Road under shady Douglas-fir foreset 975 Comment
  JEPS11738  Campanula scouleri W. L. Jepson 1902-7-30 2128 Humboldt Three Creeks to Redwood Creek 914 Comment
  HSC6637  Capsella bursa-pastoris J. E. Lankila 1962-4-14 1 Humboldt W bank of river at Fernbridge Comment
  CAS-BOT-BC37427  Cardamine californica Doris Kildale 1931-5-10 10559 Humboldt Snow Camp. Comment
  HSC40907  Cardamine californica J. O. Sawyer 1970-4-24 2189 Humboldt Groves Prairie below Lone Pine Ridge, N of Willow Creek Comment
  HSC57312  Cardamine californica Terry Griswold, Marvin Butler 1979-7-10 6318 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  LA204275  Cardamine californica Victor Duran; 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville Comment
  UC1199187  Cardamine californica Joseph P. Tracy 1914-5-14 4428 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  RSA734791  Cardamine californica var. cardiophylla LeRoy E. Detling 1935-4-20 1642 Humboldt Lansdale Grove of Redwoods. Comment
  JEPS79885  Cardamine californica var. sinuata Joseph P. Tracy 1937-3-21 15233 Humboldt 2 mi w. Bridgeville 198 Comment
  JEPS79886  Cardamine nuttallii var. covilleana Joseph P. Tracy 1927-6-12 8129 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC28224  Cardamine oligosperma Thomas W. Nelson 1971-4-12 378 Humboldt S spit of Humboldt Bay. Comment
  UC161023  Cardionema ramosissimum Joseph P. Tracy 1909-7-18 3018 Humboldt Ocean Beach at Humboldt Bay; Northern Coast Region, , Ocean Beach Comment
  CAS-BOT-BC18515  Carex abrupta Joseph Prince Tracy 1932-7-14 10546 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  CAS-BOT-BC18518  Carex abrupta Joseph Prince Tracy 1937-7-29 15580 Humboldt South Fork Mountains. McKay Camp. 1676 Comment
  CAS-BOT-BC17981  Carex aquatilis Joseph Prince Tracy 1935-6-8 13948 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon). 3 Comment
  JEPS25971  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 13504 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  HSC76378  Carex aquatilis var. dives L. P. Janeway 1982-8-7 117 Humboldt Dry Lagoon, middle of lagoon 3 Comment
  CAS-BOT-BC19091  Carex aurea Joseph Prince Tracy; H. E. Parks 1931-5-9 9401 Humboldt Northern Coast Region. Vicinity of Trinidad. At Bishop Pine Lodge. 60 Comment
  CDA33036  Carex barbarae F. Wetherbee 1962-5-1 Humboldt Ferndale. 0 Comment
  RSA246855  Carex bolanderi Robert F. Thorne, Percy C. Everett 1965-8-5 35136 Humboldt Mt. Chamisal: below summit. 747 Comment
  CAS-BOT-BC19439  Carex bolanderi Doris K. Kildale 1927-6-25 3563 Humboldt Fearren's Ranch between Thorn [Whitethorn] and Shelter Cove. Comment
  POM289957  Carex bolanderi Lyman Benson 1928-7-11 s.n. Humboldt Weott Ranger Station, S Fork Eel. 61 Comment
  UC585642  Carex brainerdii Joseph P. Tracy 1937-7-24 15525 Humboldt head of Devil's Hole Trinity Summit, Devil's Hole 1767 Comment
  HSC7100  Carex buxbaumii B. D. Rogers 1965-10-2 1018 Humboldt Big Lagoon 0 Comment
  JEPS26006  Carex canescens Joseph P. Tracy 1939-7-9 16318 Humboldt at Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  UC1586920  Carex canescens Juha Pykala and D. H. Norris 1987-6-5 1435 Humboldt e Maple Creek; Lake Prairie 1050 Comment
  HSC76382  Carex concinnoides L. P. Janeway 1982-6-8 2 Humboldt On ridge 1 mi. SE of Horse Mtn. along FS 6N36 1384 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
  SEINET7556710 Image available Carex densa Andrew L. Hipp 1999-5-31 458 Humboldt Alder Point, Alder Pt Rd ca 5 mi W of Alder Pt. 503 Comment
  CAS-BOT-BC34971  Carex densa Joseph Prince Tracy 1936-6-3 14848 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC34973  Carex densa Joseph Prince Tracy 1936-6-3 14847 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC195347  Carex deweyana subsp. leptopoda Joseph P. Tracy 1916-6-25 4746 Humboldt Redwood Creek, at point E from Trinidad 152 Comment
  UC585641  Carex deweyana subsp. leptopoda J. P. Tracy 1937-6-20 15353 Humboldt Bear River, 10 mi up stream from the mouth 152 Comment
  SEINET4110861  Carex diandra D. W. Taylor 2004-1 19127 Humboldt Pond in the divide between Frost Creek and Martin Creek, about 1 air mile east of the Alderpoint Road. 518 Comment
  HSC96492  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  UC194816  Carex feta Joseph P. Tracy 1908-7-22 2906 Humboldt opposite Buck Mountain (near top of ridge between Van Duzen and Mad River); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  CAS-BOT-BC21281  Carex fracta Joseph Prince Tracy 1937-7-25 15542 Humboldt Trinity Summit. Head of Hors-Linto Creek. 1371 Comment
  HSC43477  Carex fracta Thomas W. Nelson, Jane P. Nelson 1977-7-4 3612 Humboldt Along road N from Alder Springs 1524 Comment
  CHSC45239  Carex geyeri L. P. Janeway 1984-6-17 845 Humboldt On ridge east of Horse Mtn. 1432 Comment
  POM160289  Carex globosa Joseph P. Tracy 1925-6-7 7064 Humboldt East Fork of Willow Creek, Willow Creek Canyon. 457 Comment
  UC1103076  Carex globosa Joseph P. Tracy 1933-6-9 12538 Humboldt Englewood North Coast Ranges 91 Comment
  UC2020226  Carex gynodynama Joseph P. Tracy 1906-6-24 2508 Humboldt Northern Coast Region, south slope of Humboldt Hill. Comment
  CAS-BOT-BC22319  Carex harfordii Joseph Prince Tracy 1935-6-8 13936 Humboldt Eureka. 60 Comment
  HSC76381  Carex hendersonii L. P. Janeway 1982-6-17 9 Humboldt Ca 300 m W of main Arcata Community Forest Road along the road to the HSU water tank. 137 Comment
  UC1103594  Carex hendersonii Joseph P. Tracy 1939-4-25 16225 Humboldt mouth of Bull Creek Bull Creek 60 Comment
  UCD140376  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of the Eel River. Comment
  HSC102204  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1119 Humboldt Patterson Meadows 1555 Comment
  UC562263  Carex jonesii Joseph P. Tracy 1935-7-26 14257 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  CAS-BOT-BC35567  Carex jonesii Joseph Prince Tracy 1932-7-15 10573 Humboldt Trinity Summit, at Corral Prairie 1584 Comment
  HSC61630  Carex lenticularis var. lipocarpa Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  HSC76390  Carex mendocinensis L. P. Janeway 1982-6-20 14 Humboldt S of Horse Mtn., along Rd. 6N36, 100 m N of Titlow Hill Rd. 1384 Comment
  UC1103570  Carex multicaulis Joseph P. Tracy 1919-5-31 5164 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges 152 Comment
  UC302097  Carex multicostata Joseph P. Tracy 1913-6-16 4145 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen River Valley 762 Comment
  CAS-BOT-BC119388  Carex obnupta Doris K. Kildale 1926-4-4 1732 Humboldt Big Lagoon Comment
  CHSC2106  Carex obnupta M. Anthony 1937-5-15 Humboldt Humboldt State College. Comment
  JEPS94284  Carex obnupta Vernon Oswald and Lowell Ahart 1997-9-4 8856 Humboldt Samoa Dunes Recreation Area at the s end of the North Spit separating Humboldt Bay from the ocean North Spit; Samoa Dunes Recreation Area, North Spit Comment
  CAS-BOT-BC119380  Carex obnupta Frank Warrington Peirson 1941-7-28 13108 Humboldt Patrick Point State Park Comment
  HSC7063  Carex obnupta J. W. Johnson 1962-4-11 1242 Humboldt Arcata, Dune 3 North, Christenson Farm, Samoa Peninsula Comment
  RSA15497  Carex obnupta Joseph P. Tracy 1934-7-30 13514 Humboldt Dry Lagoon (Along coast in front of South End of Stone Lagoon). 3 Comment
  UC249734  Carex obnupta Joseph P. Tracy 1923-9-2 6541 Humboldt McClellan Mt. Northern Coast Ranges 914 Comment
  RSA88853  Carex ovalis Alice Eastwood, John Thomas Howell 1937-6-23 4790 Humboldt Near Dinsmore s. Comment
  UC194815  Carex ovalis Joseph P. Tracy 1914-7-4 4547 Humboldt High Prairie Northern Coast Ranges, Bald Mountain; High Prairie on Bald Mt., Humboldt Co. 1066 Comment
  UC562553  Carex ovalis Joseph P. Tracy 1936-6-28 15012 Humboldt near Murphy Meadow; Bald Mt. 914 Comment
  HSC98951  Carex pachystachya Cara Witte 2008-7-11 878 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC562654  Carex pachystachya Joseph P. Tracy 1930-7-10 8868 Humboldt Brannan Mountain Northern Coast Ranges 1219 Comment
  UC562663  Carex pachystachya Joseph P. Tracy 1927-5-29 8077 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC1103624  Carex scopulorum var. bracteosa Joseph P. Tracy 1935-7-26 14263 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  UC562254  Carex scopulorum var. bracteosa Joseph P. Tracy 1932-7-14 10562 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  HSC71721  Carex stipata var. stipata M. A. Baker 1980-6-26 2468 Humboldt Near Sims Creek 610 Comment
  HSC44120  Carex subfusca Thomas W. Nelson, Jane P. Nelson 1976-6-15 2735 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  HSC48739  Carex subfusca Brad Klipfel 1973-6-10 64 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC116682  Carex subfusca Joseph Prince Tracy 1928-6-17 8450 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  JEPS26002  Carex unilateralis Joseph P. Tracy 1938-7-5 16007 Humboldt old Strongs Distrcict School House, 5 miles E of town 45 Comment
  RSA152530  Carex unilateralis Joseph P. Tracy 1946-5-30 17539 Humboldt Wet gully in grassland near Bridgeville. 457 Comment
  SEINET10751219  Carex unilateralis Joseph P. Tracy 1930-6-15 Tracy 8756 Humboldt Dobbyn Creek, bordering a pond. 152 Comment
  CAS-BOT-BC115286  Carex utriculata Joseph Prince Tracy 1932-7-14 10563 Humboldt Trinity Summit, Corral Prairie in wet meadow. Comment
  RSA167278  Carex utriculata Joseph P. Tracy 1950-8-7 19264 Humboldt Meadow at Box Camp, Trinity Summit. 1524 Comment
  UC1103614  Carex vesicaria Joseph P. Tracy Jul 16 1930-Jul 19 1930 8988 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC562344  Carex vesicaria var. major Joseph P. Tracy 1934-9-15 13668 Humboldt Dow's Prairie 60 Comment
  CAS-BOT-BC114986  Carex viridula Joseph Prince Tracy 1924-7-13 6720 Humboldt In brackish swamp, Big Lagoon. 6 Comment
  RSA246874  Carex viridula Robert F. Thorne 1965-8-7 35198 Humboldt Big Lagoon, south end. 2 Comment
  HSC26372  Carpobrotus chilensis T. O. Osborne 1970-9-16 37 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC39964  Carpobrotus chilensis Linda M. Barker 1976-3-22 1343 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  RSA246760  Carpobrotus chilensis R. F. Thorne, P. Everett 1965-8-9 35306 Humboldt Big Lagoon 3 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
  CAS-BOT-BC249127  Castilleja affinis Doris K. Kildale 1927-7-10 3737 Humboldt Gans Prairie Comment
  SBBG52997  Castilleja affinis subsp. litoralis J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  HSC91171  Castilleja ambigua subsp. humboldtiensis Leonel Arguello 1989-6-11 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  JEPS76823  Castilleja ambigua subsp. humboldtiensis L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4804 Humboldt about 1.2 mi n Eureka bridge (Samoa peninsula); Samoa peninsula Comment
  UC604629  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  UC582583  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  CAS-BOT-BC255522  Castilleja applegatei var. pinetorum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1371 Comment
  UC673218  Castilleja attenuata Lincoln Constance and Reed C. Rollins 1942-5-12 2891 Humboldt 1 mi s Orleans (Klamath River); Klamath-Siskiyou Region, Klamath River 121 Comment
  BLMAR71  Castilleja exserta Jennifer Anthony-Wheeler 1994-5-18 71 Humboldt Samoa/manilla dunes, growing in dune mat areas thru-out wetland 6 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
  RSA221712  Castilleja litoralis Noel Holmgren, Liew Fah Seong 1969-6-24 3611 Humboldt 5.6 miles west of Ferndale. Comment
  RSA518654  Castilleja litoralis L. R. Heckard, T. I. Chuang 1971-7-1 2667 Humboldt Slope at south end of Freshwater Lagoon, 2 miles southwest of Orick. Comment
  HSC41275  Castilleja pruinosa Brad Klipfel 1974-6-25 427 Humboldt Horse Mtn. Comment
  HSC44346  Castilleja pruinosa Brad Klipfel 1975-6-17 689 Humboldt Horse Mtn. Comment
  HSC73442  Ceanothus cuneatus Gail Newton 1980-7-11 1311 Humboldt Near Red Mtn. 1341 Comment
  UCD112090  Ceanothus cuneatus Thomas W. Nelson; James L. Nelson 1980-6-10 5444 Humboldt along branch road off Swayback Ridge Road, 0.5 mile east of junction. 1371 Comment
  UC668169  Ceanothus cuneatus var. cuneatus Joseph P. Tracy 1938-6-13 15905 Humboldt Horse Mt. 1432 Comment
  BLMAR199  Ceanothus incanus Donald Hazlett 1994-6-7 199 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1070754  Ceanothus incanus A. E. Wieslander 1931-5-22 219 Humboldt Wilder Ridge Comment
  CAS-BOT-BC63678  Ceanothus integerrimus L. B. Kildale 1928-6-24 5279 Humboldt Entrance to Hoopa Mt. Comment
  CAS-BOT-BC63681  Ceanothus integerrimus L. B. Kildale 1928-5-19 5138 Humboldt Chalk Mountain. Comment
  CAS-BOT-BC63683  Ceanothus integerrimus M. S. Jussel 1931-5-2 115 Humboldt Garberville. Comment
  HSC60024  Ceanothus integerrimus M. A. Baker 1978-5-6 474 Humboldt Bald Hills Rd., between Klamath River and French Camp Rd. Comment
  JEPS42112  Ceanothus integerrimus Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  CAS-BOT-BC51216  Ceanothus parryi Mrs. H. C. Cantelow 1935-5-30 829 Humboldt N. of Garberville Comment
  HSC18311  Ceanothus parryi C. B. Wolf 1927-8-30 1245 Humboldt Ettersburg Comment
  HSC36677  Ceanothus parryi R. Sutherland 1975-5-5 7 .5575 Humboldt Near Ettersburg Rd. 457 Comment
  HSC37085  Ceanothus parryi R. Sutherland 1975-6-4 1 .4675 Humboldt Near county rd. 2 mi NE of Briceland 168 Comment
  HSC43211  Ceanothus parryi R. Sutherland 1975-4-4 1 .4475 Humboldt Rd. bank of Perry Meadow Rd. 244 Comment
  HSC43212  Ceanothus parryi R. Sutherland 1975-4-13 0 .13475 Humboldt 2 mi NE of Briceland along county rd. 183 Comment
  SBBG4431  Ceanothus parryi M. Van Rensselaer 1941-4-29 1644 Humboldt Redwood Hwy near Garberville Comment
  CAS-BOT-BC53060  Ceanothus pumilus Joseph P. Tracy 1927-5-15 8056 Humboldt Hoopa Mountain - On road west from Hoopa Valley 914 Comment
  HSC18322  Ceanothus pumilus Class 1937-5-12 Humboldt Hoopa Comment
  HSC98122  Ceanothus pumilus Cara Witte 2007-5-24 118 Humboldt Horse Mountain Botanical Area. Along 6N36. Approximately .6 miles southeast from Radio Towers. 1476 Comment
  UC502966  Ceanothus pumilus Joseph P. Tracy 1927-6-12 8121 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  CAS-BOT-BC52216  Ceanothus thyrsiflorus Doris K. Kildale 1926-4-11 1753 Humboldt Blue Slide in the Van Duzen River Comment
  CAS-BOT-BC52222  Ceanothus thyrsiflorus Milo S. Baker 1924-4-17 79 -ton.Req Humboldt Ft Bragg Highway near Albion Comment
  RSA172183  Ceanothus thyrsiflorus Robert F. Thorne 1957-9-2 19005 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC166485  Ceanothus thyrsiflorus Joseph P. Tracy 1909-8-22 3077 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  UC668160  Ceanothus thyrsiflorus Joseph P. Tracy 1935-6-2 13924 Humboldt Big Lagoon 60 Comment
  HSC18348  Ceanothus velutinus R. E. Thill 1965-5-15 33 Humboldt 1.0 mi E of Willow Creek on Hwy. 299 Comment
  UC1052836  Ceanothus velutinus W. L. Colwell 1955-6-7 28 Humboldt three mi w Weott (one half mi n of Grasshopper Mountain lookout); Quad. 29B3, n of Grasshopper Mountain lookout 914 Comment
  UC1193275  Ceanothus velutinus R. H. Neuns 1950-7-13 128 Humboldt 3 miles south of Alder Point 548 Comment
  CDA35679  Ceanothus velutinus Gordon Leppig 1998-6-1 876 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  CAS-BOT-BC277174  Centaurea X moncktonii Earle Mills 1933-10-27 s.n. Humboldt Eureka Comment
  UC582527  Centaurea X moncktonii J. C. Tario Jr. 1933-10-23 Humboldt near Orick (Davison's field) 60 Comment
  CAS-BOT-BC277177  Centaurea X pouzinii T. C. Fuller 1960-8-25 4975 Humboldt Pacific Lumber Co., Perrott Creek, across Eel River from Dyerville Comment
  CDA42257  Centaurea diffusa P. Haggard 1998-9-13 s.n. Humboldt North Coast Ranges; USFS land near Blue Lake. 0 Comment
  CDA7306  Centaurea nigra K. E. Frick 1961-8-16 Humboldt Eureka. Near fairgrounds. 0 Comment
  HSC61725  Centaurea solstitialis Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan 198 Comment
  UC562468  Centunculus minimus Joseph P. Tracy 1927-7-17 8272 Humboldt North Coast Ranges, on Chaparral Mountain, Three Cabins Three Cabins; North Coast Ranges, Chaparral Mountain, Three Cabins 457 Comment
  SBBG2066  Cerastium arvense H. and M. Dearing 1933-5-16 236 Humboldt near Garberville Comment
  CAS-BOT-BC384905  Cerastium arvense Kenneth Clark 1980-4-18 599 Humboldt Shelter Cove. Above Dead Man's Gulch 175 Comment
  HSC79427  Cerastium arvense Kenneth Clark 1980-3-22 528 Humboldt Middle alluvial terraces and in upper open meadows by small ephemeral stream 114 Comment
  CAS-BOT-BC384998  Cerastium fontanum Carl B. Wolf 1927-8-22 797 Humboldt Big Lagoon Comment
  HSC4099  Cerastium glomeratum H. E. Parks, S. T. Parks Apr 1944 24279 Humboldt Spruce Cove, Trinidad 61 Comment
  RSA18059  Cerastium glomeratum C. B. Wolf 1927-8-22 797 Humboldt Big Lagoon. Comment
  HSC4101  Cerastium glomeratum Francis Winter 1960-4-24 Humboldt 1 mi. S of Redwood Creek Ranch 396 Comment
  UC62197  Ceratophyllum demersum W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  POM162070  Cercis occidentalis Joseph P. Tracy 1921-9-4 5950 Humboldt Trinity River Valley, near Willow Creek. Comment
  RSA2940  Cercis occidentalis Carl B. Wolf 1931-8-31 2380 Humboldt West side of South fork of Trinity River, 1 mi. above its mouth. Comment
  CAS-BOT-BC179478  Cercis occidentalis Lincoln Constance; Reed C. Rollins 1942-5-12 2895 Humboldt Bluffs at junction of Klamath and Salmon rivers, 1 mile south of Somes Bar. 152 Comment
  UC666857  Cercocarpus ledifolius var. ledifolius Joseph P. Tracy 1935-7-30 14362 Humboldt Salmon Summit, about 2 mi sw of the top of the mountain Salmon Summit 1767 Comment
  CAS-BOT-BC276488  Chaenactis douglasii var. douglasii Joseph P. Tracy 1932-7-12 10462 Humboldt Trinity Summit. Head of Brett Hole 1828 Comment
  CAS-BOT-BC85651  Chamaecyparis lawsoniana Thomas Nelson 1977-10-20 3758 Humboldt Mixed evergreen forest above junction of Maple Creek and Kneeland roads. 853 Comment
  CAS-BOT-BC85653  Chamaecyparis lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon 762 Comment
  HSC31650  Chamaecyparis lawsoniana Timothy B. Devine 1974-5-4 320 Humboldt 1/4 mi. N of junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC8035  Chamaesyce maculata D. E. Anderson 1963-9-21 2840 Humboldt 0.5 mi E of Willow Creek Comment
  HSC32532  Chamaesyce serpyllifolia Thomas W. Nelson 1973-9-3 1130 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC995  Cheilanthes gracillima J. Wendell Howe 1934-7-21 1314 Humboldt Near Cold Spring, Horse Mtn. Comment
  UC195427  Chenopodium pumilio Joseph P. Tracy 1915-9-12 4675 Humboldt on river nearly opposite Laribee Creek; Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  CAS-BOT-BC451386  Chimaphila menziesii Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Nat. Trail 1524 Comment
  CAS-BOT-BC451499  Chimaphila umbellata Carl B. Wolf 1937-8-12 9209 Humboldt North Coast Range, South Fork Mt., 0.6 mi S of Blake Lookout 1676 Comment
  RSA43899  Chimaphila umbellata subsp. occidentalis H. M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1372 Comment
  HSC15439  Chlorogalum pomeridianum var. pomeridianum Paul Shields Jul 1955 Humboldt 6 mi. W of Myers Flat Comment
  CAS-BOT-BC36485  Chrysolepis chrysophylla Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of orleans Mt. 1828 Comment
  UCSB1015  Chrysolepis chrysophylla Muller, Cornelius 1954-6-21 Humboldt 8 mi. ESE of Mad River on road to Forest Glen Comment
  UC1198852  Chrysosplenium glechomifolium J. P. Tracy 1901-6-10 1128 Humboldt immediate vicinity Eureka 0 Comment
  UCD130477  Cichorium intybus Lincoln Constance 1934-6-25 933 Humboldt Bull Creek Region, South Fork Eel River, on east side of the road at Englewood across the road from Collins' Englewood Campground. Comment
  UC642260  Cicuta douglasii Joseph P. Tracy 1927-8-22 8345 Humboldt near High Prairie (on Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC54023  Circaea alpina subsp. pacifica Griswold, Butler 1979-7-12 7185 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC70726  Circaea alpina subsp. pacifica Gail Newton 1980-7-14 1521 Humboldt Near Deadman Ridge 1097 Comment
  RSA20788  Circaea alpina subsp. pacifica Carl B. Wolf 1937-8-13 9253 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  OBI75077  Cirsium arvense Thomas S. Elias, Barbara A. Elias 1987-8-26 10632 Humboldt Fernbridge, 0.5 mi S of rte 101; Riparian vegetation along WEst bank of Eel River; about .5 mi N of bridge on wide gravel bar Comment
  RSA0070608  Cirsium douglasii var. douglasii Thomas W. Nelson 1976-7-9 2987 Humboldt Along 1S07 just west of summit. 1585 Comment
  UC249823  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 Humboldt near Ruby Creek (on the Willow Creek Highway); Northern Coast Ranges 609 Comment
  UC129598  Cirsium occidentale var. candidissimum Mrs. M. H. Manning Jul 20 1901-Jul 30 1901 Humboldt near Hupa; Bald Hill Comment
  CAS-BOT-BC285580  Cirsium occidentale var. occidentale L. R. Abrams 1916-7-18 6142 Humboldt At Trinidad Comment
  CAS-BOT-BC288718  Cirsium remotifolium Doris K Niles 1948-7-26 4 Humboldt Eel River bottom, A. D. Niles Field Comment
  RSA0070877  Cirsium remotifolium Joseph P. Tracy 1949-8-11 18472 Humboldt East of headwaters of Redwood Creek, beginning where the electric power line crosses, and working south. Kinsey Ridge, south from Grouse Mt., 2 to 6 miles. 1280 Comment
  UC582536  Cirsium remotifolium H. E. Parks and Joseph P. Tracy 1934-7-13 13383 Humboldt vicinity of Trinidad; Northern Coast Region 60 Comment
  UC1196992  Clarkia Joseph P. Tracy 1942-6-15 17170 Humboldt 5 mi n Garberville 152 Comment
  UCD104030  Clarkia amoena James P. Smith 1973-5-26 6827 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC16232  Clarkia amoena R. T. Paul 1967-7-20 4 Humboldt N of Capetown 152 Comment
  UC1196995  Clarkia amoena Joseph P. Tracy 1913-7-20 4381 Humboldt near Berry's; Northern Coast Ranges, Redwood Creek 304 Comment
  UC902167  Clarkia amoena Joseph P. Tracy 1948-8-22 18110 Humboldt Table Bluff Ridge 91 Comment
  BLMAR1  Clarkia amoena subsp. amoena Jennifer Anthony-Wheeler 1993-7-30 1 Humboldt King range, growing scattrd through coastal grassland along smith-etter 15 Comment
  HSC36785  Clarkia amoena subsp. huntiana Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-20 2037 Humboldt 3 mi. E of Dinsmore Comment
  UC56307  Clarkia gracilis subsp. gracilis Joseph Burtt Davy 1899-6-21 5728 Humboldt Supply Creek Comment
  UC594153  Clarkia gracilis subsp. gracilis S. K. Harris, J. P. Tracy 1936-6-10 3261 Humboldt near mouth South Fork Trinity River (hills w of river) 640 Comment
  CAS-BOT-BC172514  Clarkia purpurea subsp. quadrivulnera Paul F. Covel 1937-7-11 888 Humboldt Near Garberville Comment
  CAS-BOT-BC164723  Clarkia rhomboidea Harley P. Chandler 1901-6-1 1339 Humboldt Hupa Indian Reservation 152 Comment
  RSA256474  Clarkia rhomboidea Joseph P. Tracy 1937-7-24 15527 Humboldt Trinity Summit, 2 miles SE of Devil s Hole 1524 Comment
  HSC79435  Claytonia perfoliata subsp. mexicana Kenneth Clark 1981-4-5 1227 Humboldt Dead Man's Gulch 69 Comment
  HSC100606  Claytonia sibirica Carl C. Marshall Mar 1886 150 Humboldt Everywhere. Comment
  SBBG69724  Claytonia sibirica H. and M. Dearing 1939-6-21 3689 Humboldt E fork of Willow Crk Comment
  HSC99019  Claytonia sibirica C. Witte 2007-5-18 35 Humboldt Along National Forest 1. Approximately 1 mile north of intersection with 5N09. 1456 Comment
  SEINET11942404  Claytonia sibirica J. P. Tracy 1950-1 18960 Humboldt Fern Spring, Happy Camp Mountain (in Trinity Summit Range, 6 mi NE of Hawkins Bar) 1280 Comment
  SFV1197  Claytonia sibirica J. Turner, F. M. Ball 1962-7-9 s. n. Humboldt Beside scenic Redwood Highway about 2 miles south of junction with freeway, 40 miles north of Mendocino-Humboldt county line. Comment
  UC418984  Claytonia sibirica H. E. Parks May 1930 742 Humboldt Upper Van Duzen River Comment
  HSC78577  Claytonia washingtoniana C. E. Fellows 1970-4-18 258 Humboldt NE end of Big Lagoon, E side of Hwy. 101 Comment
  UC668071  Clematis ligusticifolia Joseph P. Tracy 1937-8-3 15608 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  CAS-BOT-BC499340  Clintonia andrewsiana Doris K. Kildale 1926-3-26 1638 Humboldt Old Kneeland Road 60 Comment
  HSC15447  Clintonia andrewsiana D. E. Anderson 1963-5-25 2478 Humboldt 4 mi. N of Capetown Comment
  UC1541328  Clintonia andrewsiana W. K. Parks 1932-8-24 1135 Humboldt 1 mi e of Grizzly Creek (Van Duzen River); Van Duzen River 152 Comment
  UC1197661  Clintonia uniflora Joseph P. Tracy 1939-5-30 16299 Humboldt opposite Buck Mountain (near Dinsmore's Ranch, Van Duzen River); Van Duzen River 762 Comment
  POM210220  Collinsia grandiflora H. E. Parks, Joseph P. Tracy 1930-5-25 741 Humboldt Laribee Valley. 762 Comment
  UC41805  Collinsia grandiflora Harley P. Chandler May 1901 1251 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  UC1222824  Collinsia heterophylla Joseph P. Tracy 1950-6-15 18812 Humboldt at Huestis Rock on ne side of Ridge (Mail Ridge Trip) Huestis Rock 822 Comment
  HSC20635  Collinsia linearis D. E. Anderson 1965-6-1 3777 Humboldt Along Ridge Rd., about 7 mi. NE of its Jct. with Titlow Hill Rd. Comment
  RSA60814  Collinsia linearis Frank W. Gould 1939-5-30 831 Humboldt Southwestern side of Horse Mountain. 762 Comment
  UC1238971  Collinsia linearis Freed W. Hoffman 1946-5-24 967 Humboldt Blue Lake to Willow Creek (North Coast Ranges, Trinity Forest); North Coast Ranges, Trinity Forest Comment
  HSC39622  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-6-15 2726 Humboldt Along old trail above Alder Springs 1585 Comment
  HSC40672  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-7-1 2929 Humboldt Along beanch to W of Mt. Lassic (Signal Peak) 1677 Comment
  UC1196761  Collinsia parviflora Joseph P. Tracy 1913-6-14 4122 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS6171  Collinsia rattanii Joseph P. Tracy 1925-5-30 7032 1/2 Humboldt Laribee Valley; North Coast Ranges 701 Comment
  HSC100660  Collinsia rattanii Carl C. Marshall Jul 1887 414 Humboldt Spruce Grove. Comment
  JEPS117  Collinsia rattanii Volney Rattan Jun 1884 Humboldt Black Butte; Coast Mtns Comment
  UC1196823  Collinsia sparsiflora var. collina Joseph P. Tracy 1932-4-24 9819 Humboldt between Miranda and Redway (S. Fork Eel River); North Coast Ranges 91 Comment
  JEPS4616  Collinsia torreyi var. wrightii W. L. Jepson Jul 16 1902-Jul 23 1902 2042 Humboldt Trinity Summit 2133 Comment
  JEPS7054  Collinsia torreyi var. wrightii Joseph P. Tracy 1930-7-17 9014 Humboldt near McKay Camp; South Fork Mtn 1676 Comment
  HSC56220  Collomia grandiflora G. L. Clifton, Griswold 1979-8-2 12247 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC32838  Collomia heterophylla Thomas W. Nelson, James Nelson 1973-5-28 948 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1197847  Collomia heterophylla Joseph P. Tracy 1908-6 2702 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  UC52547  Collomia heterophylla Mrs. M. H. Manning June, 1902 Humboldt Hupa Comment
  CDA40007  Collomia heterophylla T. R. Haig 1960-6-18 s.n. Humboldt Kneeland. 0 Comment
  JEPS26242  Collomia tracyi Joseph P. Tracy 1932-7-12 10468 Humboldt head Brett Hole (in areas of disintegrated rock); Trinity Summit 1828 Comment
  UC978533  Collomia tracyi Joseph P. Tracy 1927-6-12 8161 Humboldt in slide rock Northern Coast Ranges, Horse Mountain 1066 Comment
  HSC96489  Comarum palustre Gordon Leppig 1997-8-3 634 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 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
  HSC21475  Conium maculatum F. Morrel 1949-5-14 24 Humboldt Weitchpec Comment
  HSC27899  Conium maculatum B. R. Templeton 1962-5-15 Humboldt 3 mi S of Arcata Comment
  JEPS47868  Convolvulus arvensis Lincoln Constance 1934-5-27 692 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (gravel bar of river at s end) 45 Comment
  HSC73776  Corallorhiza maculata M. A. Baker 1980-6-7 1768 Humboldt Near Brush Mtn. 1128 Comment
  HSC40272  Corallorhiza maculata J. D. Ackerman 1976-7-8 772 Humboldt 0.25 mi. E of Hwy. 299 on Chezem Rd. Comment
  HSC59032  Corallorhiza maculata M. A. Baker 1979-6-8 804 Humboldt 0.5 mi. NW of Gan's Prairie, E side of Bald Hill's Rd. Comment
  JEPS64333  Corallorhiza maculata Lincoln Constance 1934-6-9 842 Humboldt Peavine Ridge South Fork Eel River, Bull Creek Region (w slope) 609 Comment
  UC176372  Corallorhiza striata Joseph P. Tracy 1913-6-14 4131 Humboldt Buck Mountain Northern Coast Ranges (nw slope, lower foothills) 762 Comment
  SEINET200684 Image available Corallorhiza striata var. striata Joseph P. Tracy 1913-6-14 4131 Humboldt Lower foothills of Buck Mountain, on its northwest slope 762 Comment
  JEPS70115  Cordylanthus maritimus subsp. palustris L. R. Heckard 1972-8-9 3152 Humboldt Margin of Humboldt Bay 2 mi s of Arcata; Humboldt Bay Comment
  UC604620  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1938-7-15 16064 Humboldt borders salt marsh at Fields Landing; Northern Coast Region, around Humboldt Bay 3 Comment
  HSC38284  Corethrogyne filaginifolia J. P. Smith 1976-10-3 8993 Humboldt Samoa Peninsula, just W of the drag strip Comment
  UC1119247  Corethrogyne filaginifolia H. S. Yates 1968-6-16 5668 Humboldt 1.5 mi sw of Samoa; Eureka Quadrangle Comment
  RSA286351  Corethrogyne filaginifolia var. californica R. F. Thorne 1974-7-29 45073 Humboldt Samoa Dunes. Comment
  CAS-BOT-BC212017  Cornus nuttallii Doris K. Kildale 1925-4-1 s.n. Humboldt Hungry Hollow near Korbell Comment
  RSA697172  Cornus nuttallii J. R. Bruff 1937-8-17 919 Humboldt Richardson Grove. Comment
  UC183588  Cornus nuttallii Joseph P. Tracy 1913-6-26 4345 Humboldt opposite Buck Mt. (Dinsmore's Ranch, Van Duzen R. Valley); Northern Coast Ranges, Van Duzen R. Valley, Dinsmore's Ranch 762 Comment
  RSA85517  Cornus nuttallii G. R. Campbell 1954-3-24 19022 Humboldt 17.4 mi. east of jct. of hwys 101 and 299 above Blue Lake. Comment
  RSA46468  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat. Comment
  UC1196903  Cornus sessilis Joseph P. Tracy 1941-3-26 16846 Humboldt Four-mile Creek near mouth of S. Fork Trinity R. 609 Comment
  UC154069  Cornus sessilis Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5634 Humboldt Hoopa Mt. North Coast Ranges, Hoopa Mt. Comment
  HSC12552  Coronopus didymus D. La Conte 1970-10-11 18 Humboldt Comment
  UC1197937  Corylus californica Joseph P. Tracy 1946-8-25 17640 Humboldt Table Bluff, foot of N slope along Hookton Road 9 Comment
  CAS-BOT-BC180303  Corylus cornuta subsp. californica Joseph P. Tracy 1949-8-11 18486 Humboldt near Snow Camp (1 1/2 mi SE) 1341 Comment
  UCR32167  Corylus cornuta var. californica David J. Keil 1983-7-2 17312 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  RSA697176  Corylus rostrata var. californica J. R. Bruff 1937-8-17 918 Humboldt Richardson Grove. Comment
  SD117460  Cotoneaster franchetii Robert F. Thorne 1974-7-29 45072 Humboldt Samoa Dunes Comment
  RSA730001  Cotoneaster pannosus Peter F. Zika 2007-7-20 263324 Humboldt NCo, North Coast: Lynda Lane near high school, S end of Big Lagoon. 20 Comment
  UC166068  Cotula coronopifolia J. P. Tracy 1903-8-9 1948 Humboldt immediate vicinity of Eureka 0 Comment
  RSA20802  Crataegus douglasii Carl B. Wolf 1937-8-13 s.n. Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  UC129417  Crepis capillaris Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5537 B Humboldt near Scotia Comment
  UCR121767  Crepis capillaris George K. Helmkamp, E. A. Helmkamp 2001-7-8 6998 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  CAS-BOT-BC291491  Crepis capillaris Alice Eastwood; John Thomas Howell 1937-6-23 4836 Humboldt 7 miles from Yager on road to Kneeland Comment
  HSC58139  Crepis pleurocarpa Gilbert Muth 1979-8-1 12158 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC76217  Crepis pleurocarpa Overton, Butler 1979-7-24 9717 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  SEINET2145774 Image available Crepis pleurocarpa Unknown 1933-7-25 12826 Humboldt Horse Mountain 1430 Comment
  RSA43685  Crepis setosa H. M. Pollard 1947-8-21 s.n. Humboldt roadside between Orleans and Boyse Creek Comment
  JEPS22553  Crocidium multicaule Joseph P. Tracy 1933-5-21 12212 Humboldt McClellan Mountain 822 Comment
  CDA2722  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-3 17446 Humboldt Northwest corner of overpass of Hwy 101 freeway to Garberville, 1 miles south of Fields Landing. 0 Comment
  HSC33754  Cryptantha leiocarpa A. Montalvo 1975-5-24 284 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  SBBG16519  Cryptantha leiocarpa D. E. Breedlove 1962-6-7 3051 Humboldt 1.5 mi S of Samoa on peninsula on W side of Humboldt Bay Comment
  UC1239651  Cryptantha torreyana Joseph P. Tracy 1926-7-5 7732 Humboldt Valley of South Yager Creek 762 Comment
  HSC74324  Cryptogramma acrostichoides Gail Newton 1980-7-23 1734 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC6390  Cuscuta californica J. P. Tracy 1930-7-16 8912 Humboldt S Fork Mtn. near McKay Camp 1677 Comment
  HSC89900  Cuscuta pacifica var. pacifica Leonel Arguello 1989-9-9 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  HSC95576  Cuscuta pacifica var. pacifica Andrea Pickart 2002-8-8 190 Humboldt Arcata Marsh at end of I st. 0 Comment
  HSC45050  Cynosurus echinatus R. Sutherland 1978-4-24 3 .24478 Humboldt Kinsey Ridge above Oat Creek 396 Comment
  RSA91852  Cynosurus echinatus Joseph P. Tracy, H. E. Parks 1933-6-11 12542 Humboldt Near Miranda 152 Comment
  POM89794  Cyperus bipartitus Joseph P. Tracy 1920-8-15 5366 Humboldt Klamath River, at mouth of Bluff Creek 152 Comment
  HSC23677  Cyperus eragrostis Tim Baroni 1971-7-5 91 Humboldt 8 mi. E of Petrolia Comment
  UC668034  Cyperus eragrostis Joseph P. Tracy 1935-5-25 13836 Humboldt Fort Seward 106 Comment
  RSA275286  Cyperus eragrostis J. P. Smith, Advanced Plant Taxonomy Plant 1971-10-9 4990 Humboldt Mad River above the Fish Hatchery. Comment
  CAS-BOT-BC114369  Cyperus erythrorhizos Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  UC1196444  Cypripedium fasciculatum unknown 1931-4-1 Humboldt Weitchpec 152 Comment
  HSC54710  Cypripedium montanum Overton, Butler 1979-7-26 10063 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  RSA382009  Cypripedium montanum Ryan 1917-6-10 s.n. Humboldt Hoopa Indian Reservation Comment
  HSC74727  Cystopteris fragilis Gail Newton 1981-7-23 2282 Humboldt Near Bug Creek Butte. 1350 Comment
  UCD136399  Cystopteris fragilis Lincoln Constance 1934-6-2 781 Humboldt Bull Creek Region, South Fork Eel River. Comment
  CHSC10111  Cytisus scoparius T. M. Mingo 1965-5-1 Humboldt Approximately 5 miles north of Trinidad in fields near the coast. Comment
  HSC89445  Cytisus scoparius P. A. Daly 1984-5-13 20 Humboldt Along trail at Trinidad Head 61 Comment
  CAS-BOT-BC198198  Cytisus striatus Catherine Best 1990-6-26 1367 Humboldt At the edge of Stagecoach Road off Hwy. 101. Comment
  HSC73805  Dactylis glomerata M. A. Baker 1980-6-16 1937 Humboldt Near Monks Camp. 1097 Comment
  HSC9529  Dactylis glomerata John Warner Hosking 1966-8-6 Humboldt Fern Lake, behind Humboldt State College campus, Arcata Comment
  UC184230  Dactylis glomerata Joseph P. Tracy 1912-6-16 3696 Humboldt near Fields Landing; Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC71722  Danthonia californica Marc Baker 1980-7-26 2465 Humboldt Near Sims Creek. 610 Comment
  UCD60968  Danthonia californica var. americana R. Tofsrud 1947-7-28 Humboldt Between Capetown and Ferndale. Comment
  CAS-BOT-BC194370  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain 1402 Comment
  UC1198874  Darmera peltata Joseph P. Tracy 1935-9-29 14755 Humboldt Blue Slide Van Duzen River (on the Van Duzen River) 91 Comment
  SDSU2270  Daucus carota D. F. Howe 1959-8-4 2805 Humboldt Roadside 9 miles east of Arcata on #299. Comment
  HSC43840  Daucus pusillus Maralyn O'Meara 1974-6-2 496 Humboldt South spit to Humboldt Bay Comment
  UC154247  Daucus pusillus Joseph P. Tracy July, 1908 2795 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt & Trinity Co.'s); Northern Coast Ranges, Humboldt & Trinity Co.'s 914 Comment
  UC467717  Delphinium decorum subsp. tracyi Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5788 Humboldt Trinity Summit Comment
  HSC37654  Delphinium decorum subsp. tracyi Robert M. Specht, John Rehling 1976-4-25 395 Humboldt 12 mi. E of Bridgeville on Hwy. 36, at SE end of Larabee Valley Comment
  HSC48946  Delphinium nudicaule M. A. Baker 1979-5-1 700 Humboldt Along old bed of Bluff Creek Comment
  SD37307  Delphinium nudicaule Marie Cummings 1933-5-22 109 Humboldt Near Blockburg Comment
  SEINET12099565  Delphinium nudicaule J. P. Tracy 1950-1 18815 Humboldt Mail Ridge, N of Harris 7 mi, "Huestis Rock" on NE side of Ridge Comment
  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
  HSC32935  Delphinium nuttallianum Thomas W. Nelson 1973-5-30 972 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  SD58244  Delphinium trolliifolium W. L. Jepson 1934-5-6 16681 Humboldt Little Larrabee Creek Comment
  UC1299388  Delphinium trolliifolium Freed W. Hoffman 1946-5-20 964 Humboldt hills near Capetown Comment
  HSC9587  Deschampsia cespitosa D. J. McVean 1965-5-22 82 Humboldt Dike by Mad River Slough, just N of Somoa Blvd. Comment
  HSC82970  Deschampsia cespitosa subsp. beringensis A. L. Eicher 1985-8-8 Humboldt Salt marsh bordering Elk River, 0.4 mi. NW of the Elk River bridge. 1 Comment
  UC1103217  Deschampsia elongata J. P. Tracy 1901-4-26 1043 Humboldt 6 mi. s. Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  UC34060  Deschampsia elongata J. P. Tracy 1901-6-10 1130 Humboldt immediate vicinity of Eureka 0 Comment
  UCD63594  Deschampsia elongata A. H. Shunk 1923-7-21 Humboldt Bridgeville. Comment
  UC1198795  Descurainia incana Joseph P. Tracy 1935-7-22 14128 Humboldt Corral Prairie Trinity Summit (along trail) 1584 Comment
  CAS-BOT-BC402539  Dicentra pauciflora Joseph P. Tracy 1933-7-11 12691 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  CAS-BOT-BC209193  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt Along river, Willow Creek, Trinity River Valley. 152 Comment
  SEINET202038 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1939-7-9 16323 Humboldt Bald Mountain at Lake Prairie Comment
  SEINET7293093 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1938-1 16172 Humboldt Bald Mountain; at 'Lake Prairie Comment
  JEPS5680  Dichelostemma X venustum Milo S. Baker 1923-7-20 29 Humboldt Head of South Fork of Yager Creek Comment
  CHSC31277  Dichelostemma ida-maia Mark Stopher 1980-5-28 72 Humboldt Hillside along Hwy 169 1.2 mi e of Martins Ferry Bridge. 170 Comment
  UC635734  Dichelostemma ida-maia H. L. Mason 1928-7-20 4909 Humboldt South Fork Mountain Comment
  JEPS5675  Dichelostemma ida-maia Lincoln Constance 1934-5-23 604 Humboldt above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  HSC69691  Digitalis purpurea R. Kalal 1980-5-18 24 Humboldt Hwy. 101, 0.5 mi. W of Orick 6 Comment
  SEINET8221173  Diplacus aurantiacus L. R. Abrams 1916-7-18 6072 Humboldt Fortuna. Comment
  UC249802  Distichlis spicata Joseph P. Tracy 1923-6-19 6286 Humboldt Mouth of Davies Creek Comment
  HSC17907  Dodecatheon alpinum W. K. Parks Jul 1933 1374 Humboldt S Fork Mtn. Comment
  HSC70230  Dodecatheon hendersonii M. A. Baker 1980-6-8 1892 Humboldt Near Buck Flat. 1554 Comment
  UC673096  Downingia elegans Joseph P. Tracy 1940-7-7 16673 Humboldt Grouse Mt. 1554 Comment
  UC552293  Draba verna Joseph P. Tracy 1935-4-5 13772 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  HSC40018  Drymocallis glandulosa var. glandulosa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2922 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC57850  Drymocallis glandulosa var. reflexa G. L. Clifton 1979-7-31 11357 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC76190  Drymocallis glandulosa var. reflexa Overton, Butler 1979-7-24 9773 Humboldt Near Black Rock, close to the town of Willow Creek 1463 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
  RSA693562  Dryopteris expansa Anstruther Davidson 1923-8-11 s.n. Humboldt Redwood Forest Comment
  HSC7296  Dulichium arundinaceum J. P. Tracy 1938-9-25 16173 Humboldt Bald Mtn., 'Lake Prairie 1067 Comment
  HSC45062  Dysphania botrys R. Sutherland 1976-8-13 15 .13876 Humboldt Redwood Creek, Whittemore Grove. 87 Comment
  CAS-BOT-BC197063  Echinochloa crus-galli Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC197256  Echinochloa muricata var. microstachya Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  UCD49791  Eleocharis macrostachya Thomas Nelson 1977-9-22 3749 Humboldt Humboldt County. In drainage ditch along east side of State Route 101 just north of the Eureka Airport. Comment
  CAS-BOT-BC113134  Eleocharis pachycarpa Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon. Comment
  HSC96491  Eleocharis pachycarpa Gordon Leppig 1998-7-19 979 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  POM87948  Eleocharis palustris Le Roy Abrams 8267 Humboldt Big Lagoon, south of Orick. Comment
  CAS-BOT-BC113206  Eleocharis parishii Doris K. Kildale 1927-7-3 3664 Humboldt Willow Creek Flat, swampy outflow from spring. Comment
  HSC62866  Elodea canadensis J. M. DiTomaso 1979-5-16 1016 Humboldt Pond below Fern Lake just E of gymnasium on Humboldt State University campus, Arcata. Comment
  HSC9713  Elymus glaucus D. E. Anderson 1965-5-15 3718 Humboldt Along Hwy. 96, 1.9 miles N of Willow Creek. Comment
  UC1103478  Elymus glaucus Joseph P. Tracy 1936-6-10 14940 Humboldt near the South Fork; Trinity River Valley 304 Comment
  UCD61791  Elymus glaucus A. H. Murphy 1951-8-17 91 Humboldt Humboldt-Trinity Co. line: Near Cold Spring Lookout, South Fork Mtn. ca. 15 miles northeast of Bridgeville. 1219 Comment
  UCD61792  Elymus glaucus J. B. Davy; W. C. Blasdale 1899-6-16 5565 Humboldt Alton. Comment
  CAS-BOT-BC203475  Elymus glaucus subsp. glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie, on Bald Mountain 1066 Comment
  RSA86744  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon 6 Comment
  UC212884  Elymus glaucus subsp. virescens Joseph P. Tracy 1920-7-4 5340 Humboldt Little River Beach Northern Coast Ranges (rocky bluffs facing ocean) 15 Comment
  HSC9733  Elymus mollis subsp. mollis L. M. Malloy 1965-5-16 15 Humboldt Samoa, sand dunes 1/4 mile NW of the corner of Thunder Rd. and the Hard Way. Comment
  POM225535  Epilobium brachycarpum P. A. Munz 1936-8-10 14337 Humboldt Little Van Duzen River, 15 miles east of Bridgeville. Comment
  UC583055  Epilobium brachycarpum P. A. Munz 1936-8-13 14381 Humboldt 10 mi w Willow Creek Comment
  HSC53857  Epilobium ciliatum Griswold, Butler 1979-7-10 6328 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC54584  Epilobium ciliatum subsp. ciliatum Overton, Butler 1979-7-24 9638 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1197003  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1920-8-15 5388 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC1197011  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1903-8-9 1934 Humboldt Immediate vicinity of Eureka 0 Comment
  RSA32869  Epilobium ciliatum subsp. ciliatum A. A. Heller 1923-7-6 13767 Humboldt Humboldt Camp 10 miles south of Dyerville. Comment
  UC549762  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1932-7-16 10633 Humboldt swamp near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC16367  Epilobium ciliatum subsp. watsonii J. P. Tracy 1926-7-25 7756 Humboldt Big Lagoon Comment
  UC146139  Epilobium ciliatum subsp. watsonii Joseph P. Tracy 1907-7-20 2591 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach, along ditch) Comment
  UC583056  Epilobium ciliatum subsp. watsonii P. A. Munz 1936-8-13 14385 Humboldt roadside ditch Clam Beach Comment
  UC1197005  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1920-8-15 5381 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC1197009  Epilobium hallianum Joseph P. Tracy 1936-6-28 15028 Humboldt Lake Prairie Bald Mountain 1219 Comment
  BLMAR178  Epilobium minutum Donald Hazlett 1994-6-7 178 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC56949  Epilobium minutum Overton, Butler 1979-7-23 9447 Humboldt Near Horse Mtn., close to the town of Willow Creek 1295 Comment
  HSC58173  Epilobium minutum G. L. Clifton, Griswold 1979-8-2 12252 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC73789  Epilobium minutum Gail Newton 1980-6-28 704 Humboldt Near Mad River Butte. 1536 Comment
  HSC49630  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3401 Humboldt Mckeown Ranch N of Dinsmore, Mad River 610 Comment
  UC552238 Image available Epilobium oreganum Joseph P. Tracy 1933-7-25 12835 Humboldt Grouse Mountain North Coast Ranges Comment
  UC1198497  Epilobium torreyi Joseph P. Tracy 1934-7-9 13334 Humboldt 5 mi s Harris (on ridge) 762 Comment
  HSC70639  Equisetum telmateia subsp. braunii R. York 1980-5-18 594 Humboldt Near Black Mtn 792 Comment
  HSC12909  Equisetum telmateia subsp. braunii Steve Dorei 1970-10-16 73 Humboldt HSC campus, behind Johnson House Comment
  UC249801  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1923-9-10 6545 Humboldt Trinity River Valley near South Fork; Northern Coast Ranges, Trinity River Valley, nr South Fork 182 Comment
  CAS-BOT-BC291178  Erechtites glomeratus L. R. Abrams 1916-7-18 6108 Humboldt Arcata to Trinidad, 18 mi along coast Comment
  HSC5493  Erechtites glomeratus J. W. Johnson 1962-4-18 1261 Humboldt Arcata; N of the Hunt and Bull Farms, Samoa Peninsula 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
  HSC98862  Eremogone congesta var. congesta Cara Witte 2008-7-30 961 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  CAS-BOT-BC131507  Ericameria arborescens H. E. McMinn 1922-8-3 476 Humboldt Mt. slope - above S.F., Eel River Comment
  CAS-BOT-BC298297  Ericameria nauseosa var. speciosa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt 1524 Comment
  UC912295  Erigeron biolettii Herbert L. Mason 1928-7-14 4908 Humboldt near Garberville; East Fork Eel River Comment
  UC468817  Erigeron foliosus var. confinis Joseph Burtt Davy and Walter C. Blasdale Jun 20 1899-Jan 1 1900 5713 Humboldt Hoopa Valley North-Western California, Mendocino Comment
  JEPS41520  Erigeron foliosus var. mendocinus Lincoln Constance 1934-5-29 720 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region, Upper Look Prairie 365 Comment
  CAS-BOT-BC308076  Erigeron glaucus J. P. Tracy 1900-7-4 888 Humboldt Samoa, opp. Eureka Comment
  HSC90479  Erigeron glaucus Jean Hanson 1980-8-28 121 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  POM56125  Erigeron glaucus Joseph P. Tracy 1918-7-1 4972 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape. 3 Comment
  UC165064  Erigeron inornatus var. inornatus Joseph P. Tracy 1908-7-1 2894 Humboldt ridge between Van Duzen River and Mad River (near low gap, Humboldt and Trinity Counties); Trinity County 914 Comment
  CHSC324  Erigeron philadelphicus A. Small 1954-6-7 Humboldt 1/2 mi. s. of Capetown. 60 Comment
  SEINET9351061  Erigeron philadelphicus Unknown 1935-5-22 Humboldt Fort Seward. Comment
  UCSB15926  Erigeron philadelphicus Breedlove, Dennis 1962-6-8 Humboldt On U.S. Highway 101, 3 miles south of Orick Comment
  UC169037  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1912-7-4 3725 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC202679  Erigeron philadelphicus var. philadelphicus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  JEPS22258  Erigeron robustior Milo S. Baker 1923-7-29 134 Humboldt Yager Creek; mt. on s side of camp, region of type locality 792 Comment
  UC1223008  Erigeron robustior Joseph P. Tracy 1951-6-26 19585 Humboldt extreme head of Redwood Creek; , Board Camp Mountain Comment
  SEINET11851213  Erigeron strigosus J. P. Tracy 1950-1 19046 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  CAS-BOT-BC300281  Erigeron strigosus var. strigosus Harley P. Chandler 1901-6-1 1402 Humboldt North Coast Ranges. Klamath River 243 Comment
  UC53950  Erigeron strigosus var. strigosus Harley P. Chandler 1901-6-1 1402 Humboldt Klamath River 243 Comment
  CAS-BOT-BC224255  Eriodictyon californicum Doris K. Kildale 1925-6-21 747 Humboldt Briceland Bridge 1/2 mi. west of Garberville 114 Comment
  HSC54002  Eriogonum compositum Griswold, Butler 1979-7-10 7111 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  CAS-BOT-BC248809  Eriogonum compositum var. compositum Joseph P. Tracy 1932-7-12 10460 Humboldt Trinity Summit, head of Brett Hole 1828 Comment
  UC54702  Eriogonum nudum var. nudum Harley P. Chandler 1901-6-1 1350 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  CAS-BOT-BC267876  Eriogonum umbellatum Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC54001  Eriogonum umbellatum Griswold, Butler 1979-7-10 7110 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC54720  Eriogonum umbellatum Overton, Butler 1979-7-26 10095 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  HSC43082  Eriogonum umbellatum var. argus Brad Klipfel 1973-8-3 305 Humboldt N Trinity Mtn. 1860 Comment
  UC1198157  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1932-7-12 10459 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  HSC43078  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-7-15 181 Humboldt Area of N Trinity Mtn. 1860 Comment
  HSC43081  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-7-31 261 Humboldt N Trinity Mtn. 1860 Comment
  HSC54745  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-7-26 10224 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  RSA249330  Eriophorum crinigerum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5566 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  HSC40042  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2895 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC169040  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1912-7-26 3837 1/2 Humboldt Kneeland Prairie Northern Coast ranges, Kneeland Prairie 762 Comment
  UC984818  Eriophyllum lanatum var. achilleoides A. M. Vollmer and L. Beane 1951-6-6 125 Humboldt on road between Orick and Weitchpec Comment
  CAS-BOT-BC301389  Eriophyllum lanatum var. grandiflorum L. R. Abrams 1918-6-16 7154 Humboldt Willow Creek Comment
  UC1199144  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1939-4-29 16250 Humboldt near mouth of Slate Creek; Klamath River 121 Comment
  UC129579  Eriophyllum lanatum var. lanceolatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5711 Humboldt Hoopa Valley Comment
  UC1222612  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1951-6-21 19528 Humboldt in bed of former Goose Lake (back of Everett Beck house on ranch, Hydesville); Hydesville, , Everett Beck ranch house Comment
  HSC36913  Erysimum capitatum var. capitatum John Rehling, Robert M. Specht 1976-2-20 111 Humboldt Along Kneeland Rd., halfway to Bridgeville Comment
  HSC57666  Erysimum capitatum var. capitatum G. L. Clifton, Terry Griswold 1979-7-25 10849 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC60055  Erysimum capitatum var. capitatum M. A. Baker 1978-5-6 493 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC47486  Erysimum menziesii Sheila Logan 1978-4-7 4 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  HSC6788  Erysimum menziesii D. E. Anderson 1962-3-25 1949 Humboldt 0.5 mi. N of Fairhaven. Comment
  SEINET200701 Image available Erythranthe cardinalis Joseph P. Tracy 1911-1 3480 Humboldt Tributary of Trinity River; along Willow Creek; near its mouth. 244 Comment
  HSC74620  Erythronium californicum M. A. Baker 1980-5-17 1248 Humboldt Near Le Perron Peak 1066 Comment
  UC666967  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  JEPS502  Erythronium grandiflorum Joseph P. Tracy 1933-7-11 12708 Humboldt Grouse Mountain 1524 Comment
  JEPS501  Erythronium grandiflorum Joseph P. Tracy 1930-7-18 9037 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC48528  Erythronium grandiflorum subsp. grandiflorum Mark Flippo 1978-5-21 60 Humboldt USFS Rd. 8N20 Comment
  JEPS109992  Erythronium revolutum D. W. Taylor 2004-4-15 19055 Humboldt Ba;d Mountain; county road ca 1 air mile E of mapped summit; Lord Ellis Summit. Comment
  CAS-BOT-BC403032  Eschscholzia californica Carl B. Wolf 1937-6-14 8824 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  HSC69578  Eucalyptus globulus R. Kalal 1980-6-1 7 Humboldt City of Arcata, along F street between 12th and 13th streets. 37 Comment
  UC1199349  Euchiton gymnocephalus Joseph P. Tracy 1936-8-1 15058 Humboldt 6 mi se Blue Lake (hillsides near Canyon Creek) 365 Comment
  UC562615  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  CAS-BOT-BC310491  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt Fickle Hill. (6 mi. S.E. of Arcata) 609 Comment
  UC1199358  Euchiton sphaericus Joseph P. Tracy 1931-8-8 9608 Humboldt along Lord-Ellis Road (headwaters of North Fork of Mad River); North Fork of Mad River 609 Comment
  UC1198986  Euphorbia J. C. Tario Jr. 1931-8-20 Humboldt Iaqua Buttes; at Slater place, along old road 914 Comment
  UC1198983  Euphorbia crenulata Joseph P. Tracy 1935-5-25 13879 Humboldt Fort Seward 106 Comment
  UC1198985  Euphorbia crenulata Joseph P. Tracy 1928-2-26 8396 Humboldt near Centerville (at Fleener's Gulch); Northern Coast Ranges 30 Comment
  UCR94919  Euphorbia helioscopia D. L. Koutnik 1996-7-3 s.n. Humboldt Manila. Comment
  CAS-BOT-BC310679  Euthamia occidentalis Joseph P. Tracy 1927-10-8 8389 Humboldt Arcata Bottom 15 Comment
  HSC73806  Festuca arundinacea M. A. Baker 1980-6-16 1938 Humboldt Near Monks Camp. 1097 Comment
  CAS-BOT-BC278304  Festuca californica subsp. californica L. R. Abrams 1918-6-15 7126 Humboldt Brannan Mt near Willow Creek 1371 Comment
  HSC32230  Festuca idahoensis J. O. Sawyer 1970-6-24 2231 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  CAS-BOT-BC278809  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville Comment
  HSC58759  Festuca occidentalis Overton, Butler 1979-7-26 9993 Humboldt Near Willow Creek 1341 Comment
  HSC71594  Festuca occidentalis M. A. Baker 1980-6-26 2404 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC278970  Festuca rubra W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  HSC26371  Festuca rubra T. O. Osborne 1970-9-16 62 Humboldt Trinidad Bay, Prisoner Rock Comment
  RSA152482  Festuca rubra Joseph P. Tracy 1950-6-17 18838 Humboldt At Eureka. Comment
  SACT001197  Festuca rubra Malcolm Nobs, S. Smith 1949-8-3 Humboldt Salt marshes. Comment
  HSC70481  Festuca subulata Gail Newton 1980-7-20 1632 Humboldt Near Bell Swamps 1426 Comment
  HSC12788  Foeniculum vulgare M. J. Athey 1970-12-5 27 Humboldt Arcata Comment
  HSC21492  Foeniculum vulgare Wm. F. Bowman 1968-11-9 Humboldt Along E edge of Humboldt Bay, along elevated area near railroad tracks. Comment
  HSC18623  Fragaria chiloensis J. W. Johnson 1962-4-29 1300 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  HSC26395  Fragaria chiloensis T. O. Osborne 1970-9-16 35 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC38191  Fragaria chiloensis Peter Sorensen 1976-5-28 Humboldt N Spit of Humboldt Bay, S of Samoa Comment
  HSC90467  Fragaria chiloensis Jean Hanson 1980-3-8 30 Humboldt Indian (Gunther) Island, in Humboldt Bay. W end of island, 200 ft. from SW shore Comment
  HSC49077  Fragaria vesca J. O. Sawyer 1977-4-23 2845 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC70357  Fragaria vesca M. A. Baker 1980-6-7 1866 Humboldt Near Ammon Creek 732 Comment
  HSC89552  Fragaria vesca M. Roantree 1985-4-25 12 Humboldt E side of Trinidad Head Comment
  UCD112747  Frangula californica Carl B. Wolf 1934-6-30 5842 Humboldt back of Shelter Cove. Comment
  CAS-BOT-BC53404  Frangula californica subsp. occidentalis Carl B. Wolf 1927-8-28 1172 Humboldt On grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  CAS-BOT-BC53406  Frangula californica subsp. occidentalis John Thomas Howell 1937-7-31 13717 Humboldt 5 miles east of Berry Summit Comment
  CAS-BOT-BC59965  Frangula purshiana A. A. Heller 1923-7-9 13775 Humboldt About 5 mi. e. of Arcata on the road to Blue Lake. Comment
  CAS-BOT-BC59968  Frangula purshiana Harley P. Chandler 1901-5-1 1173 Humboldt Humboldt Bay. 30 Comment
  CAS-BOT-BC59995  Frangula purshiana L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp. 1219 Comment
  CAS-BOT-BC59998  Frangula purshiana C. B. Wolf 1937-8-13 9260 Humboldt N. coast range, 11 mi. e. of Hoopa Valley on New Road towards Trinity summit. 1524 Comment
  JEPS44086  Fraxinus latifolia W. L. Jepson 1903-6-15 2205 Humboldt Briceland Comment
  RSA46910  Fraxinus latifolia Doris K. Kildale 1926-7-5 2325 Humboldt Smith River near Adam s Station Comment
Read comments
Jan 24 2013
  UC1197638  Fritillaria atropurpurea Joseph P. Tracy 1935-7-30 14375 Humboldt Salmon Summit, just below the top Salmon Summit 2072 Comment
  UC602509  Galium bolanderi Joseph P. Tracy 1937-7-24 15530 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  HSC41599  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1977-8-6 3705 Humboldt Above Alder Springs 1555 Comment
  HSC98665  Galium bolanderi Cara Witte 2007-8-9 631 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .2 miles from intersection with Forest Service Road 4N32B. 1413 Comment
  UC1586848  Galium californicum subsp. californicum Juha Pykala and D. H. Norris 1987-5-20 802 Humboldt along Bull Creek Road from Panther Gap to 4 miles S of Panther Gap Comment
  UC1196117  Galium californicum subsp. californicum Joseph P. Tracy 1934-7-9 13337 Humboldt ridge 5 mi s Harris 762 Comment
  JEPS6481  Galium divaricatum Joseph P. Tracy 1920-7-11 5343 Humboldt 2 mi se Arcata; Fickle Hill 304 Comment
  JEPS6482  Galium divaricatum Joseph P. Tracy 1916-6-19 4730 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC1225914  Galium divaricatum Joseph P. Tracy 1946-7-13 17614 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  UC198660  Galium divaricatum Joseph P. Tracy 1916-6-19 4730 Humboldt Alder Point Northern Coast Ranges 152 Comment
  JEPS52838  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3860 Humboldt 2.3 mi s Weott; Avenue of The Giants 60 Comment
  RSA202666  Galium muricatum L. T. Dempster 1963-7-8 3845 Humboldt Along E fork of Willow Creek. 100 yds S of the campsite. 6.2 miles W of Willow Creek town. 488 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
  UC1196079  Galium triflorum Joseph P. Tracy 1930-7-16 8925 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC98666  Galium triflorum Cara Witte 2007-7-2 398 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1589 Comment
  CAS-BOT-BC303390  Gamochaeta ustulata Joseph P. Tracy 1936-5-30 14834 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  CAS-BOT-BC303398  Gamochaeta ustulata L. R. Abrams 1916-7-18 6125 Humboldt Arcata to Trinidad Comment
  UC1199343  Gamochaeta ustulata Joseph P. Tracy 1935-5-25 13835 Humboldt Fort Seward 106 Comment
  UC485684  Gamochaeta ustulata Joseph P. Tracy 1912-6-9 3648 Humboldt Alton Northern Coast Region 30 Comment
  BLMAR538  Garrya buxifolia Jennifer Wheeler 2009-6-23 538 Humboldt King range, On King Peak road Comment
  HSC41276  Garrya buxifolia Brad Klipfel 1974-6-25 430 Humboldt Horse Mtn. Comment
  HSC73036  Garrya buxifolia Gail Newton 1980-7-23 1712 Humboldt Near Packsaddle Ridge 1463 Comment
  UC1196891  Garrya buxifolia Joseph P. Tracy 1933-7-11 12676 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC188539  Garrya elliptica Alice Eastwood 1923-8-14 12321 Humboldt Samoa Comment
  HSC103981  Garrya elliptica C. Reynolds 2015-4-12 28 Humboldt Just before entrance onto footpath at Freshwater Beach from Kuchel Visitor Center 1 Comment
  HSC39953  Garrya elliptica Linda M. Barker 1976-1-24 1309 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC182145  Garrya fremontii L. B. Kildale 1931-10-1 s.n. Humboldt Bug Creek, Caparall Mt. 1097 Comment
  CAS-BOT-BC182173  Garrya fremontii Joseph P. Tracy 1939-9-10 16499 Humboldt Trinity River Valley at Willow Creek 152 Comment
  OBI35859  Garrya fremontii David J. Keil 1983-7-2 17336 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  UC1193366  Garrya fremontii P. Zinke 1950-10-9 183 Humboldt e side King Peak 1188 Comment
  SEINET200308  Gastridium phleoides J. P. Tracy 1912-7-26 3824 Humboldt Kneeland Prairie 762 Comment
  HSC59858  Gaultheria ovatifolia M. A. Baker 1979-7-6 1011 Humboldt .6 k W of FS rd. 15N01 on rd. 12N16, toward Bald Mtn. Comment
  CHSC68497  Gaultheria shallon Vernon H. Oswald 1997-4-10 8328 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  HSC23141  Gaultheria shallon Norman Dennis 1965-6-19 125 Humboldt 0.25 mi S and 1.0 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  UC21946  Gaultheria shallon unknown 1894-8-6 Humboldt Eureka Comment
  HSC55073  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-31 11657 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC1196960  Gayophytum humile Joseph P. Tracy 1930-7-23 9117 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC54746  Gayophytum racemosum G. L. Clifton, Griswold 1979-7-26 10230 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  UC495730  Genista Joseph P. Tracy 1927-7-24 8301 Humboldt Mattole Valley; Northern Coast Ranges, Mattole Valley 152 Comment
  CAS-BOT-BC208038  Genista monspessulana Joseph P. Tracy 1927-7-24 8301 Humboldt Mattole Valley 152 Comment
  RSA246869  Gentiana sceptrum Robert F. Thorne, P. C. Everett 1965-8-9 35288 Humboldt Big Lagoon. 3 Comment
  UC169882  Geranium molle Harley P. Chandler May 1901 1124 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC90389  Geranium pusillum Jean Hanson 1980-4-12 41 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island Comment
  HSC100591  Gilia capitata Carl C. Marshall Jun 1885 103 Humboldt Eel River region. Comment
  HSC74459  Gilia capitata M. A. Baker 1980-5-18 1364 Humboldt Near Black Mtn. 792 Comment
  HSC24654  Gilia capitata subsp. pacifica R. E. Jones 1966-5-13 50 Humboldt Cape Mendocino Comment
  CAS-BOT-BC225475  Gilia millefoliata Lewis S. Rose 1972-6-5 72004 Humboldt Samoa 3 Comment
  HSC16984  Gilia millefoliata R. J. Vernimen 1963-5-11 45 Humboldt Clam Beach Lagoons, 10 mi. N of Arcata Comment
  HSC16993  Gilia millefoliata Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC95589  Gilia millefoliata Andrea Pickart 2002-5-20 105 Humboldt Manila Dunes, near Manila Community Services District treatment area 15 Comment
  JEPS16254 Image available Gilia millefoliata J. P. Tracy 1903-6-12 1921 Humboldt immediate vicinity Eureka; ; Eureka, Humboldt Co. 0 Comment
  RSA273327  Glaux maritima J. D. Ackerman 1975-6-10 453 Humboldt 1 mile N of Samoa Bridge turnoff from Samoa Blvd., S of Manila, Humboldt Bay 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
  RSA246750  Glehnia littoralis subsp. leiocarpa R. F. Thorne, P. Everett 1965-8-7 35218 Humboldt Samoa Peninsula. 3 Comment
  HSC10056  Glyceria declinata D. J. McVean 1965-5-18 79 Humboldt McDaniel's Slough next to Samoa Blvd., Arcata. Comment
  SEINET267676 Image available Glyceria fluitans Gordon Leppig 1995-4-6 243 Humboldt Arcata Alder Grove Pond. 12 Comment
  SEINET267677 Image available Glyceria occidentalis Gordon Leppig 1996-5-5 329 Humboldt Arcata Healthsport parking lot of Union St. 2 Comment
  HSC70482  Glyceria striata Gail Newton 1980-7-20 1636 Humboldt Near Bell Swamps 1426 Comment
  UC1103751  Glyceria striata Joseph P. Tracy 1903-6-14 1922 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC57969  Gnaphalium palustre G. L. Clifton, Griswold 1979-7-31 11692 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  JEPS34040  Gnaphalium palustre W. L. Jepson 1936-8-17 17919 a Humboldt 2 mi s of Field's Landing (near Still's Ranch, marsh) Comment
  UC582517  Gnaphalium palustre Joseph P. Tracy 1932-7-13 10513 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC1199345  Gnaphalium palustre Joseph P. Tracy 1930-7-17 9005 Humboldt meadow McKay Camp; South Fork Mountain, McKay Camp 1676 Comment
  HSC100433  Gnaphalium sprengelii Carl C. Marshall Sep 1887 440 Humboldt Coast region. Comment
  HSC54227  Goodyera oblongifolia Griswold, Butler 1979-7-12 7293 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC55277  Goodyera oblongifolia Overton, Butler 1979-8-2 12685 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC98555  Goodyera oblongifolia Cara Witte 2007-9-3 643 Humboldt Forest Service Road 5N09. 1 mile east of intersection with National Forest 1. 1332 Comment
  HSC53979  Gratiola ebracteata Griswold, Butler 1979-7-11 7054 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  JEPS41875  Grindelia hirsutula W. L. Jepson 1902-8-4 2145 Humboldt seashore Capetown to Petrolia 3 Comment
  UC1192227  Grindelia hirsutula Malcolm A. Nobs and S. Galen Smith 1949-8-3 1179 Humboldt salt marshes around Fields Landing Fields Landing Comment
  UC79899  Hackelia californica Joseph P. Tracy 1937-7-25 15548 Humboldt on Ridge 2 mi e of Groves Prairie; Trinity Summit 1524 Comment
  JEPS79900  Hackelia micrantha Joseph P. Tracy 1932-7-11 10421 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  RSA47164  Hastingsia serpentinicola Doris K. Kildale 1927-7-17 3771 Humboldt Bug Creek, Chaparral Mountain Comment
  HSC56405  Helenium bigelovii Griswold, Butler 1979-7-11 7011 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  JEPS35025  Helenium bigelovii Joseph P. Tracy 1930-7-16 8936 Humboldt at McKay Camp South Fork Mountain 1676 Comment
  CAS-BOT-BC306613  Helenium bigelovii Doris K. Kildale 1925-8-15 1173 Humboldt Elk Horn Prairie - Trinity Summit 1539 Comment
  JEPS35023  Helenium bigelovii Joseph P. Tracy 1937-8-12 15627 Humboldt Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  JEPS35428  Helenium bigelovii H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout; South Fork Mt. Comment
  UC524125  Helenium bigelovii Ira L. Wiggins 1932-7-19 5891 Humboldt 1.5 mi n Trinidad Head Comment
  HSC100435  Helenium puberulum Carl C. Marshall Jul 1886 350 Humboldt Liscom's Hill. Comment
  UC552839  Heliotropium curassavicum Joseph P. Tracy 1935-8-25 14747 Humboldt Stone Lagoon North Coast Ranges, Stone Lagoon 3 Comment
  BLMAR710  Helminthotheca echioides Jennifer Wheeler 2010-9-28 710 Humboldt Lost Coast Headland, decommissioned naval base side, east side of road 76 Comment
  CHSC57416  Hemizonella minima L. P. Janeway 1984-6-23 897 Humboldt Titlow Hill. On ridge top. 1478 Comment
  HSC44129  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1977-7-4 3608 Humboldt Along road N from Alder Spring 1555 Comment
  UC495626  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1930-9-1 9174 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River 121 Comment
  UC1245364  Hemizonia congesta subsp. tracyi Joseph T. Gregory 1932-6-19 184 Humboldt Buck Mt. Comment
  UC175967  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1908-6-8 2629 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC906659  Heracleum lanatum Joseph P. Tracy 1947-8-24 17915 Humboldt near Box Camp Trinity Summit 1524 Comment
  CDA20030  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 1 of 3 0 Comment
  HSC48812  Heracleum maximum Brad Klipfel 1973-7-31 226 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  BLMAR190  Heteromeles arbutifolia Donald Hazlett 1994-6-7 190 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  JEPS2421  Heterotheca oregona var. oregona W. L. Jepson 1936-8-12 17875 Humboldt Philipsville, gravel bars and lowest terrace of South Fork Eel River South Fork Eel River Comment
  CAS-BOT-BC420739  Heuchera merriamii Joseph P. Tracy 1935-7-24 14172 Humboldt Trinity Summit near Ranger Station 1828 Comment
  UC1198859  Heuchera micrantha var. diversifolia Joseph P. Tracy 1937-5-30 15304 Humboldt 5 mi n Blocksburg (Larrabee Creek); Larrabee Creek 365 Comment
  CAS-BOT-BC420721  Heuchera micrantha var. diversifolia L. R. Abrams 1916-7-10 5960 Humboldt Between Harris and Alder Pt., southern Humboldt County Comment
  UC1198855  Heuchera micrantha var. diversifolia Joseph P. Tracy 1948-6-20 18071 Humboldt Willow Creek Canyon, along Trinity Highway, near Ruby Creek; Willow Creek Canyon 609 Comment
  HSC56114  Heuchera rubescens Gilbert Muth 1979-8-1 11884 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  CAS-BOT-BC312395  Hieracium albiflorum W. R. Dudley 1899-6-19 s.n. Humboldt Scotia Comment
  HSC48848  Hieracium albiflorum Brad Klipfel 1973-7-15 204 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC67880  Hieracium albiflorum J. P. Smith 1973-5-26 6874 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC127713  Hieracium albiflorum Harley P. Chandler 1901-6-1 1329 Humboldt Hupa Indian Reservation North Coast Ranges, , Hoopa Indian Re 152 Comment
  BLMAR217  Hieracium albiflorum Jennifer Anthony-Wheeler 1996-7-9 217 Humboldt Pilot ridge. 1280 Comment
  BLMAR227  Hieracium albiflorum Jennifer Anthony-Wheeler 1996-7-11 227 Humboldt N.Dobbyn creek, common throughout the forest floor 1005 Comment
  HSC58147  Hieracium greenei Muth 1979-8-1 12190 Humboldt Near Red Cap Prairie 1781 Comment
  UC1103738  Hierochloe occidentalis Joseph P. Tracy 1942-5-16 17348 Humboldt Garberville 152 Comment
  RSA0016045  Hippuris vulgaris Robert F. Thorne, P. C. Everett 1965-8-9 35344 Humboldt Along Hwy 101 about 3 miles N of Eureka. 2 Comment
  UC1191968  Hippuris vulgaris Malcolm A. Nobs and S. Galen Smith 1949-8-3 1191 Humboldt marsh & bog land at southern outskirts Eureka Comment
  HSC61726  Hirschfeldia incana Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  HSC58657  Holcus lanatus G. L. Clifton 1979-7-31 11851 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC59126  Holcus lanatus Terry Roth 1979-5-26 88 Humboldt Arcata, field off Sunset Ave., near the old mill location. Comment
  HSC45632  Holodiscus discolor Diane L. Reed 1978-4-22 10 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  UC1198703  Holodiscus discolor Joseph P. Tracy 1911-7-6 3362 Humboldt along road between Three Creeks and Mouth of Willow Creek, Northern Coast Ranges Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC1198705  Holodiscus discolor Joseph P. Tracy 1912-7-31 3932 Humboldt Northern Coast Ranges, Buck Mountain near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC1198706  Holodiscus discolor Joseph P. Tracy 1932-7-18 10718 Humboldt Klamath Mountains, Trinity Summit, Head of Brett Hole Head of Brett Hole; Klamath Mountains, Trinity Summit, Head of Brett Hole 1828 Comment
  UC774993  Holodiscus discolor Carl B. Wolf 1937-8-13 9227 Humboldt 8 mi e of Hoopa Valley (on new road towards Trinity Summit, North Coast Range); North Coast Range 1219 Comment
  SEINET3351072 Image available Hordeum Joseph P. Tracy 1942-1 Humboldt Frequent in moist grassy meadow. 91 Comment
  RSA87062  Hordeum brachyantherum Joseph P. Tracy 1933-6-6 12508 Humboldt Trinidad 9 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
  HSC10192  Hordeum jubatum J. P. Tracy 1927-7-16 8249 Humboldt Mouth of Elk River. 3 Comment
  HSC10176  Hordeum marinum subsp. gussoneanum J. A. Waller 1965-4-19 15 Humboldt Kneeland area. Comment
  UCD85874  Hordeum marinum subsp. gussoneanum P. B. Kennedy 1925-8-29 s.n. Humboldt Eureka. Comment
  CHSC96732  Hordeum murinum subsp. glaucum Gordon Leppig 1999-4-28 1127 Humboldt Arcata Bottoms. North of Lamphere Rd. UTM zone 10, 4529N, 406E. 1 Comment
  UC1222317  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1951-6-26 19597 Humboldt n side Board Camp Mountain (extreme head of Redwood Creek) Comment
  HSC82020  Horkelia tridentata var. flavescens Thomas W. Nelson, James Nelson 1980-6-10 5397 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  HSC100516  Hosackia crassifolia Carl C. Marshall Jun 1886 239 Humboldt Near Mad River and E of Hoopa. Comment
  SBBG3399  Hosackia crassifolia var. crassifolia H. and M. Dearing 1939-5-24 3418 Humboldt pass, Dyerville-Mattole Rd Comment
  UCD106139  Hosackia oblongifolia A. Murphy 1951-6-25 s.n. Humboldt location unknown. 1402 Comment
  HSC39451  Hydrocotyle ranunculoides Linda M. Barker 1976-11-6 1704 Humboldt 3 mi W of Arcata Comment
  UC35528  Hydrophyllum occidentale Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  UC169025  Hydrophyllum tenuipes W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  UC24091  Hydrophyllum tenuipes W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  HSC58018  Hypericum anagalloides G. L. Clifton 1979-7-31 11820 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC275343  Hypericum anagalloides Joseph P. Tracy with H. E. Parks 1924-8-3 6757 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  CAS-BOT-BC400792  Hypericum anagalloides Henry M. Pollard 1948-7-18 s.n. Humboldt Area near Orleans Comment
  SEINET10720071  Hypericum anagalloides Charles L. Hitchcock, James S. Martin 1939-7-14 Hitchcock 5442 Humboldt Woods 7 miles east of Shelter Grove. 244 Comment
  RSA246853  Hypericum calycinum R. F. Thorne, P. C. Everett, K. Thorne 1965-8-9 35315 Humboldt Clam Beach County Park: along highway. 3 Comment
  POM146240  Hypericum formosum var. scouleri J. B. Feudge 1923-7-23 153 Humboldt Trinidad Comment
  UC183760  Hypericum formosum var. scouleri Joseph P. Tracy 1913-7 4362 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  HSC75374  Hypericum perforatum J. O. Sawyer, M. A. Ericksen 1980-7-7 3576 Humboldt Slopes along Aikens Creek, Adroni Research Area 457 Comment
  HSC100439  Hypochaeris glabra Carl C. Marshall May 1885 44 Humboldt Roadsides, etc. Comment
  RSA424922B  Hypochaeris radicata R. D. Goeden, D. W. Ricker 1987-9-2 9 Humboldt Loleta, along Cannibal Road. 8 Comment
  SEINET10879099  Hypochaeris radicata Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-8-6 Bennett 483 Humboldt Collected by Hwy. 101, N side of Orick. 30 Comment
  CAS-BOT-BC206846  Iliamna latibracteata C. B. Wolf 1931-8-28 2367 Humboldt Redwood Highway, 3 miles north of Orick, Davison's Ranch on Prairie Creek 60 Comment
  BLMAR694  Impatiens glandulifera Jennifer Wheeler 2013-8-13 694 Humboldt Humboldt County, Bayside Road, just north of church 6 Comment
  HSC13865  Iris douglasiana J. J. Wagoner 1965-4-3 9 Humboldt 16 mi. N of Trinidad, W of Hwy. 101 in Dry Lagoon State Beach Park 24 Comment
  HSC13866  Iris douglasiana R. E. Hafenfeld 1965-5-9 3 Humboldt 0.5 mi. S of Fern Canyon Comment
  UC176171  Iris douglasiana Joseph P. Tracy 1912-7-14 3752 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC13858  Iris douglasiana E. W. Styskel 1963-5-19 47 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  CAS-BOT-BC123359  Iris humboldtiana Alice Eastwood; John Thomas Howell 1937-6-24 4857 Humboldt Road to Horse Mt. Comment
  HSC100501  Iris longipetala Carl C. Marshall May 1886 157 Humboldt Everywhere. 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
  HSC104075  Iris purdyi S. Carothers 2001-6-7 Humboldt Six Rivers National Forest; Lassics Botanical Area; below blue serpentine ridge, above Rd. 1S11 1585 Comment
  SEINET3875944  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-27 438 Humboldt On Ishi Pishi Road, 1.7 mi. south of intersection with Forest Road 11N11, Orleans.; 0 213 Comment
  SEINET3875949  Iris tenax subsp. klamathensis J. P. Smith, John Sawyer; Jane Cole 1978-5-21 9925 Humboldt Ishi Pishi Road, 2.5 miles from its junction with State Route 36 in Orleans, California.; 0 213 Comment
Read comments
May 31 2018
  JEPS88847  Iris tenuissima Carol A. Wilson 1992-5-17 92 -ph22 Humboldt 12.1 mi e U.S. Hwy 101 (on Bald Hill Rd); Redwood National Park 701 Comment
  RSA152291  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp. 1402 Comment
  UC1223545  Isoetes howellii Joseph P. Tracy with Mr. Murphy 1951-6-26 19582 Humboldt upper of Twin Lakes Comment
  RSA18061  Isolepis cernua Carl B. Wolf 1927-8-22 790 Humboldt Big Lagoon Comment
  JEPS63980  Isolepis setacea Joseph P. Tracy 1917-6-17 4817 Humboldt Salmon Creek Valley Northern Coast Ranges, Humboldt Bay, Salmon Creek Valley (around Humboldt Bay) 30 Comment
  CHSC96733  Juncus balticus subsp. ater Gordon Leppig 1999-10-3 1259 Humboldt Big Lagoon County Park, Big Lagoon Bog. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  RSA246799  Juncus balticus subsp. ater Robert F. Thorne, Percy C. Everett 1965-8-9 35290 Humboldt Big Lagoon. 3 Comment
  UCR27990  Juncus bolanderi A. C. Sanders 1981-8-6 2300 Humboldt Near Orick, 1.6 mi west of Hwy 101 on Davison Road toward Gold Bluffs Beach Comment
  CHSC10121  Juncus breweri J. W. Johnson 1961-8-17 Humboldt Arcata. In the vernal pond community of Hollow 10, W.M. Lanphere Farm. Samoa Peninsula. Comment
  UCD141319  Juncus breweri Harold L. Lint 1964-1-4 C 308 Humboldt Hwy 101, Dry Lagoon State Park. Comment
  POM208990  Juncus bufonius Lincoln Constance 1934-6-12 862 Humboldt S Fork of Eel River, N end of Dyerville bridge, Humboldt Redwood Park. 46 Comment
  UC1152107  Juncus covillei Joseph P. Tracy 1937-8-12 15644 Humboldt Snow Camp Meadow 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
  RSA246800  Juncus effusus subsp. pacificus Robert F. Thorne, Percy C. Everett 1965-8-5 35143 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  UC184935  Juncus effusus subsp. pacificus Joseph P. Tracy 1912-7-25 3820 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS63893  Juncus effusus subsp. pacificus W. L. Jepson 1932-7-29 16440 Humboldt Weatt Comment
  JEPS63895  Juncus effusus subsp. pacificus W. L. Jepson 1932-7-24 16392 Humboldt Garberville Comment
  UC1133658  Juncus falcatus subsp. sitchensis H. S. Yates 1936-6-16 5654 Humboldt 0.5 mi sw Samoa; Eureka Quad. 3 Comment
  HSC38189  Juncus lescurii Peter Sorensen 1976-7-14 Humboldt N spit Comment
  HSC56954  Juncus xiphioides Overton, Butler 1979-7-23 9463 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  SEINET8567059 Image available Juncus xiphioides John Thomas Howell 1936-8-28 12882 Humboldt 4.5 miles from Dinsmores on road to Bridgeville Comment
  RSA120310A  Keckiella corymbosa S. S. Tillett 1956-7-6 605 Humboldt E facing slope above Klamath River, along Ishi Rish Road, 1 mi. n. of Orleans. 168 Comment
  RSA43878  Keckiella corymbosa H. M. Pollard 1948-8-12 s.n. Humboldt Perch Creek near Orleans. Comment
  NY790325  Keckiella lemmonii J. P. Tracy 1929-8-4 8648 Humboldt Ridge between Bull Creek and Mattole River 762.0 Comment
  UC162566  Keckiella lemmonii Joseph P. Tracy 1911-7-11 3504 Humboldt opposite Sugar Bowl Ranch (near Willow Creek, hill slopes at w side of Trinity River, opposite Sugar-bowl ranch); Northern Coast Ranges 304 Comment
  UC213499  Keckiella lemmonii Joseph P. Tracy 1920-8-15 5352 Humboldt mouth of Slate Creek (Klamath River); Northern Coast Ranges 152 Comment
  UC1196075  Kelloggia galioides Joseph P. Tracy 1932-7-13 10511 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  RSA0084173  Kopsiopsis strobilacea D. E. Anderson 1965-6-1 3773 Humboldt Along Friday Hill Road, about 2 miles northeast of its junction with Titlow Hill Road. 1158 Comment
  UC169331  Lagophylla ramosissima Joseph P. Tracy 1912-8-3 3965 Humboldt opposite Buck Mountain (in field); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  CDA5667  Lamiastrum galeobdolon Gordon Leppig, K. Neander 2000-4-13 1292 Humboldt Arcata Community Forest, 100 meters south of trail 5 & 10 intersection, Arcata. Comment
  HSC95607  Lamiastrum galeobdolon Gordon Leppig, Kai Neander 2000-4-13 1292 Humboldt Arcata Community Forest, 100 m S of trail 5 & 10 intersection 91 Comment
  CAS-BOT-BC352931  Lasthenia glaberrima Joseph P. Tracy 1908-6-7 2619 Humboldt Butler Valley 152 Comment
  HSC89316  Lathyrus aphaca Pat Daly 1989-4-14 Humboldt Mckinleyville, 4886 Cottage Grove Ave. Comment
  NY8451  Lathyrus biflorus T. W. Nelson 1980-6-10 5432 Humboldt Blocksburg Quadrangle. Serpentine on NE slope of Red Mountain 1371.6 Comment
  JEPS55332  Lathyrus brownii W. L. Jepson 1932-7-30 16455 Humboldt bank of Bull Creek Bull Creek 106 Comment
  UC1368669  Lathyrus glandulosus J. P. Tracy 1946-6-15 17571 Humboldt w of summit between North Fork Mad River and Redwood Creek (along Lord Ellis Road, part of Trinity Highway) 609 Comment
  BLMAR719  Lathyrus littoralis Jennifer Wheeler 2011-5-20 719 Humboldt King range, Mattole Beach Sand Dunes 3 Comment
  CDA18239  Lathyrus littoralis G. D. Barbe, T. C. Fuller 1974-6-19 1877 Humboldt North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City. 4 Comment
Read comments
Sep 18 2009
  HSC47485  Lathyrus littoralis Sheila Logan 1978-4-7 3 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  POM214877  Lathyrus littoralis Joseph P. Tracy 1929-7-4 8641 Humboldt Sand dunes near Samoa, on Humboldt Bay. Comment
  SFV18497  Lathyrus littoralis E. Cohen Apr 2002 22 Humboldt Comment
  HSC100519  Lathyrus polyphyllus Carl C. Marshall Mar 1886 147 Humboldt Near Mad River. Comment
  HSC27890  Lathyrus vestitus subsp. bolanderi Clifton Raymond Chesbrough 1973-6-19 70 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UC931759  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-8 19092 Humboldt 4 mi w Willow Creek town (near Willow Creek National Forest Camp) Comment
  UC168987  Lathyrus vestitus var. vestitus Joseph P. Tracy 1912-8-3 3971 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC325927  Layia carnosa W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC325996  Layia carnosa Frank W. Peirson 1923-7-11 3905 Humboldt 18 miles N of Eureka. Comment
  HSC5914  Layia carnosa Francis Winter 1960-5-6 Humboldt Mouth of Mad River. Comment
  UC495637  Layia carnosa Joseph P. Tracy 1932-5-16 10106 Humboldt near Samoa; Humboldt Bay 6 Comment
  CAS-BOT-BC321697  Layia gaillardioides Joseph P. Tracy 1936-6-9 14875 Humboldt Bear River Ridge 609 Comment
  UC581805  Layia gaillardioides Joseph P. Tracy 1936-6-9 14875 Humboldt Bear River Ridge 609 Comment
  CAS-BOT-BC339129  Leontodon saxatilis subsp. saxatilis H. S. Reed 1941-7-26 s.n. Humboldt Near Trinidad Comment
  CHSC33025  Lepidium didymum James P. Smith 1973-5-26 6876 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  UC161584  Lepidium nitidum Joseph P. Tracy 1908-6-8 2642 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1116214  Lepidium nitidum Joseph P. Tracy 1948-4-4 17962 Humboldt near Samoa; Humboldt Bay 6 Comment
  CAS-BOT-BC12701  Lepidium oblongum Volney Rattan 1879-1-1 s.n. Humboldt Unspecified. Comment
  CAS-BOT-BC12875  Lepidium strictum Kenneth Clark 1981-5-2 1362 Humboldt Shelter Cove. Point Delgada. In parking lot of Mario's Marina. 15 Comment
  CDA3825  Lepidium strictum P. Haggard 1996-7-8 Humboldt Louisiana Pacific Corporation tree nursery, Crannell. Comment
  HSC96631  Leptosiphon nuttallii subsp. nuttallii Thomas W. Nelson, Dick Brummitt, Barbara Ertter 2004-7-4 9284 Humboldt Along Bald Hills Rd. near French Camp, 1.5 mi. from Johnson Rd. and Elk Camp fire station Comment
  HSC5934  Lessingia nemaclada J. P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  SEINET4691296 Image available Leucanthemum vulgare Joseph P. Tracy 1918-1 5080 Humboldt Northern Coast Range; Around Humboldt Bay; Humboldt Hill 152 Comment
  HSC12543  Leucanthemum vulgare C. Kline 1970-10-26 40 Humboldt W end of School Rd., McKinleyville, above Mad River. Comment
  HSC89757  Leucanthemum vulgare M. Roantree 1985-5-15 49 Humboldt E side of Trinidad Head. Comment
  UCD134127  Leucanthemum vulgare Lincoln Constance 1934-6-6 827 Humboldt Bull Creek Region, South Fork Eel Rive, Fire Trail, Dyerville to Horse Prairie and return. Comment
  UC183667  Lewisia nevadensis Joseph P. Tracy 1913-6-17 4167 Humboldt near summit of Buck Mountain Northern Coast Ranges, Buck Mountain 1524 Comment
  RSA183570  Leymus mollis subsp. mollis R. I. Bonn 1965-3-12 6 Humboldt four miles west of Arcata on Lanphere Rd. Comment
  UC249795  Leymus mollis subsp. mollis Joseph P. Tracy 1923-5-19 6212 Humboldt Trinidad Northern Coast Ranges (ocean beach) 3 Comment
  POM160887  Leymus triticoides Joseph P. Tracy 1918-7-6 5063 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  RSA10128  Leymus triticoides Joseph P. Tracy 1929-6-3 8601 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC154077  Ligusticum apiifolium Joseph P. Tracy 1906-6-24 2505 Humboldt near top Humboldt Hill; Northern Coast Region, Humboldt Bay 0 Comment
  UC642251  Ligusticum apiifolium Joseph P. Tracy 1930-8-3 9153 Humboldt McClellan Mt. 762 Comment
  UC642252  Ligusticum apiifolium Joseph P. Tracy 1934-7-22 13485 Humboldt at crossing of Kneeland to Bridgeville rd. North Yager Creek 396 Comment
  SEINET10779391  Ligusticum californicum Joseph P. Tracy 1937-8-12 Tracy 15633 Humboldt Snow Camp 1402 Comment
  SEINET11764870  Lilaea scilloides J. P. Tracy 1950-6-18 18844 Humboldt Davis Creek, Cape Mendocino, S of point of the Cape 30 Comment
  UC1198267  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt back of Cape Mendocino; Cape Ridge Comment
  UC176172  Lilium columbianum Joseph P. Tracy 1913-9-9 4395 Humboldt Patrick's Point; Northern Coast Ranges 30 Comment
  UC176188  Lilium columbianum Joseph P. Tracy 1913-7-13 4356 Humboldt Patrick's Point; Northern Coast Ranges 30 Comment
  RSA259542  Lilium columbianum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2032 Humboldt Bald Hills Road just east of Redwood National Park Comment
  SEINET12057695  Lilium columbianum F. H. Utech 1978-6-30 78 -260 Humboldt ca 2.5 km S of Del Norte/Humboldt County line on US 101 Comment
  CAS-BOT-BC130636  Lilium kelloggii A. M. Vollmer; L. Beane 1951-6-1 148 Humboldt On road to Bald Mountain, east of Korbel Comment
  HSC15575  Lilium kelloggii D. E. Anderson 1962-7-14 2250 Humboldt 2 mi. W of Kneeland Post Office Comment
  HSC49927  Lilium kelloggii Maralyn O'Meara 1974-7-17 548 Humboldt Along Kneeland rd. across from Kneeland Post Office Comment
  JEPS89132  Lilium kelloggii Joseph P. Tracy 1913-7-20 4376 Humboldt e of Korbel (Bald Mountain); Northern Coast Ranges, Bald Mountain 914 Comment
  SEINET12050872  Lilium occidentale F. H. Utech 1977-1 Humboldt Comment
  UC1198234  Lilium pardalinum Joseph P. Tracy 1926-6-1 7552 Humboldt Eureka Northern Coast Ranges (in garden) Comment
  UC30065  Lilium pardalinum Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  CAS-BOT-BC132959  Lilium rubescens A. M. Vollmer; L. Beane 1951-6-11 135 Humboldt Bridgeville Comment
  CAS-BOT-BC132960  Lilium rubescens A. M. Vollmer; L. Beane 1951-6-1 147 Humboldt On trail to Blohn's cabin, Bald Mountain, east of Korbel Comment
  CAS-BOT-BC132962  Lilium rubescens Doris K. Kildale 1927-7-17 3748 Humboldt Bug Creek 792 Comment
  HSC15580  Lilium rubescens Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  CAS-BOT-BC132968  Lilium rubescens Tom Craig 1941-7-2 s.n. Humboldt Near Yager 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
  RSA246709  Limonium californicum Robert F. Thorne, Percy C. Everett 1965-8-7 35211 Humboldt Samoa Peninsula. 0 Comment
  UC908636  Linanthus acicularis Joseph P. Tracy 1929-5-5 8563 Humboldt Miranda, along South Fork of Eel River Northern Coast Ranges, South Fork of Eel River 121 Comment
  UC1198571  Linanthus bicolor Joseph P. Tracy 1906-6-10 2483 Humboldt Kneeland Prairie, at Fitzgerald's Northern Coast Ranges 762 Comment
  UC52822  Linanthus ciliatus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UCR37554  Linaria canadensis var. texana L. P. Janeway 1983-5-19 299 Humboldt Samoa Peninsula c. 1/2 mi north of Eureka-Samoa bridge. Between RR tracks and old Samoa Road near W edge of Arcata Bay 3 Comment
  UC524126  Linaria vulgaris Ira L. Wiggins 1932-7-19 5890 Humboldt near Trinidad Head Comment
  UC602524  Linnaea borealis var. longiflora Joseph P. Tracy 1937-7-24 15534 Humboldt head of Little Hors-Linto Creek Trinity Summit; , head of Little Hors-Linto Creek 1371 Comment
  HSC46136  Linum bienne J. P. Smith 1971-10-6 4964 Humboldt End of Murray Rd. in McKinleyville. Comment
  JEPS37738  Lithocarpus densiflorus W. L. Jepson and W. W. Mott Jul 3 1903-Jul 5 1903 Humboldt Briceland; sw Humboldt County Comment
  HSC20217  Lithophragma affine J. P. Tracy 1950-6-25 1888712 Humboldt Burr Valley 1067 Comment
  HSC20227  Lithophragma affine G. N. Bos 1965-5-15 266 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  HSC48747  Lithophragma heterophyllum Brad Klipfel 1973-6-10 86 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1199427  Logfia gallica Joseph P. Tracy 1938-6-9 15884 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC283406  Lolium multiflorum A. A. Heller 1923-7-9 13779 Humboldt In a salt flat between Eureka and Arcata Comment
  HSC27040  Lolium perenne Brad Klipfel 1973-8-24 283 Humboldt Roadside waste near Hwy. 101 Comment
  HSC99582  Lolium perenne K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 247 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
  UC726366  Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt near Arcata; near Arcata Comment
  CAS-BOT-BC271059  Lolium temulentum Joseph P. Tracy 1935-5-25 13893 Humboldt Dobbyn Creek 152 Comment
  HSC74397  Lomatium californicum Gail Newton 1980-6-28 721 Humboldt Near Mad River Butte. 1536 Comment
  HSC82019  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, James Nelson 1980-6-10 5396 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  JEPS16237  Lomatium dissectum var. dissectum Joseph P. Tracy 1913-6-20 4237 Humboldt lower foothhills of Buck Mt. (on its n.w. slope); Northern Coast Ranges, Buck Mt. 762 Comment
  UC642328  Lomatium dissectum var. dissectum Joseph P. Tracy 1928-6-24 8460 Humboldt Valley of S. Yager Creek 762 Comment
  HSC55353  Lomatium macrocarpum Terry Griswold, Butler 1979-7-12 7279 Humboldt Near Cedar Creek 1158 Comment
  CDA38337  Lomatium nudicaule Kaylea Eickhoff, Cara M. Witte 2005-6-3 1 Humboldt White Oak Opening, 19.3 miles south of Hwy. 299 on NF1. Comment
  HSC96232  Lomatium nudicaule Kaylea Eickhoff, Cara M. Witte 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  UC249606  Lomatium nudicaule Joseph P. Tracy 1922-4-30 6023 Humboldt mouth of S. Fork Trinity R.; Northern Coast Ranges, S. Fork Trinity R. 152 Comment
  HSC96231  Lomatium tracyi Sara March, Gillian Levy 2005-6-24 13 Humboldt Radio Tower on Horse Mtn. 1509 Comment
  UC1197149  Lomatium tracyi Joseph P. Tracy 1933-7-9 12650 Humboldt Brannan Mt. Northern Coast Ranges, Brannan Mt. 1066 Comment
  UC1197146  Lomatium triternatum var. triternatum Joseph P. Tracy 1930-7-10 8875 Humboldt Northern Coast Ranges, Brannan Mt. 1066 Comment
  UC906644  Lomatium triternatum var. triternatum Joseph P. Tracy 1942-6-23 17228 Humboldt 1 mi. w. Box Camp (Trinity Summit); Trinity Summit 1219 Comment
  HSC32917  Lomatium utriculatum Thomas W. Nelson, James Nelson 1973-5-28 965 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC21573  Lomatium utriculatum Francis Winter 1960-4-23 Humboldt 2 mi. S of Simpson Creek, Korbel-Maple Creek road 259 Comment
  UC1714579  Lomatium utriculatum J. P. Tracy 1904-5 2116 Humboldt immediate vicinity Eureka (restricted to small patch on bluff at Bucksport); Bucksport 0 Comment
  HSC3946  Lonicera conjugialis J. P. Tracy 1932-7-11 10414 Humboldt Trinity Summit 1524 Comment
  CAS-BOT-BC240475  Lonicera hispidula John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  HSC48414  Lonicera hispidula var. vacillans J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9928 Humboldt Ishi Pishi Rd., 2.5 mi. from Jct. with State Rte. 36 in Orleans. 213 Comment
  UC1239553  Lonicera hispidula var. vacillans Joseph P. Tracy 1923-10-14 6572 Humboldt 5 mi n Blocksburg; Larrabee Creek 457 Comment
  UC1239555  Lonicera hispidula var. vacillans Joseph P. Tracy 1915-6-27 4658 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek 60 Comment
  UC1239559  Lonicera hispidula var. vacillans Joseph P. Tracy 1938-7-5 16000 Humboldt Carlotta Northern Coast Ranges 60 Comment
  HSC90392  Lonicera involucrata Jean Hanson 1981-5-10 143 Humboldt Indian Island, Humboldt Bay, Eureka, W end of island. Comment
  SDSU2899  Lonicera involucrata D. F. Howe 1961-8-1 3104 Humboldt 6 miles north of Trinidad on #101. Comment
  HSC31644  Lonicera involucrata var. ledebourii Glenn McGourty 1974-6-1 78 Humboldt Comment
  HSC96530  Lonicera involucrata var. ledebourii Gordon Leppig 1998-5-11 758 Humboldt Big Lagoon County Park. 3 Comment
  UC180197  Lonicera involucrata var. ledebourii Joseph P. Tracy 1914-6-14 4506 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC162851  Lotus aboriginus J. P. Tracy 1906-5-20 2462 Humboldt immediate vicinity Eureka 0 Comment
  HSC48615  Lotus corniculatus Mark Flippo 1978-5-23 68 Humboldt Mckinleyville, Bella Vista Rd. Comment
  HSC59116  Lotus corniculatus Terry Roth 1979-5-29 94 Humboldt Arcata, corner of Alliance and Foster Rds. Comment
  HSC96480  Lotus corniculatus Gordon Leppig 1997-8-3 644 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS55388  Lotus crassifolius var. crassifolius Lincoln Constance 1934-6-15 877 Humboldt Summit of Grasshopper Peak South Fork Eel River, Bull Creek Region 975 Comment
  RSA21083  Lotus denticulatus Carl B. Wolf 1937-6-19 8911 Humboldt Van Duzen River, .3 mi. above Bridgeville. 122 Comment
  UC1223406  Lotus denticulatus Joseph P. Tracy 1933-6-25 12625 Humboldt 3 mi above Eel River Bar junction of the South Fork (Eel River Bar at Camp Grant); Eel River Bar Comment
  UC15615  Lotus humistratus Harley P. Chandler Jun 1901 1308 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC15635  Lotus micranthus Harley P. Chandler May 1901 1136 Humboldt Humboldt Bay North Coast Ranges 3 Comment
  UC160993  Lotus nevadensis var. nevadensis Joseph P. Tracy 1911-7-6 3358 Humboldt between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC1129022  Lotus purshianus var. purshianus H. L. Person 1932-7-18 Humboldt Freshwater Eureka Quad. Comment
  UC303189  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6266 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  UC202015  Lotus purshianus var. purshianus Joseph P. Tracy 1918-7-28 5092 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC204647  Lotus scoparius Joseph P. Tracy 1918-7-6 5048 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  HSC43849  Lotus unifoliolatus var. unifoliolatus Maralyn O'Meara 1974-7-17 558 Humboldt Kneeland Comment
  HSC98112  Lotus unifoliolatus var. unifoliolatus Cara Witte 2007-6-27 370 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  SEINET3136450  Lotus yollabolliensis R. W. Spellenberg 1990-7-9 10230 Humboldt 7 air mi WNW of Hyampom, 40 mi S of Calif. Hwy 299 and Berry Summit on USFS Road 1, ca 1 mi N of Blake Mtn. on South Fork Mtn 1768 Comment
  UC1223411  Lotus yollabolliensis Joseph P. Tracy 1941-8-28 17048 Humboldt near Blake Lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  SEINET12151354  Lotus yollabolliensis J. P. Tracy 1941-1 17048 Humboldt South Fork Mtn, nr Blake Lookout 1737 Comment
  UCD107084  Ludwigia hexapetala Malcolm A. Nobs; S. Galen Smith 1949-8-9 1231 Humboldt On southern side of town of Blue Lake. Comment
  CAS-BOT-BC60241  Lunaria annua Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka. Comment
  UC1223281  Lupinus adsurgens Joseph P. Tracy 1946-6-15 17567 Humboldt at the Ski Lodge, Horse Mountain (Horse Mountain); Horse Mountain 1219 Comment
  SEINET200686  Lupinus albicaulis Joseph P. Tracy 1926-5-15 7495 Humboldt Kneeland Prairie. 762 Comment
  SEINET12154351  Lupinus albicaulis var. shastensis J. P. Tracy 1940-1 16687 Humboldt Wilder Range Comment
  UC1223274  Lupinus albicaulis var. shastensis Joseph P. Tracy 1940-7-14 16687 Humboldt Wilder Ridge Comment
  SEINET200685  Lupinus albifrons Joseph P. Tracy 1926-5-9 7458 Humboldt Valley of South Yager Creek Comment
  CDA27368  Lupinus albifrons var. collinus K. Eickhoff, C. M. Witte 2005-6-24 15 Humboldt Approximately 13 miles south of Highway 299 on NF1. Comment
  CHSC10106  Lupinus arboreus J. W. Johnson 1961-9-3 1078 Humboldt Arcata. In the dune fields, Christenson Farm, Samoa Peninsula. Comment
  HSC14774  Lupinus arboreus J. W. Johnson 1961-11-20 Humboldt Arcata, Christenson Farm., Samoa Peninsula Comment
  UC1223266  Lupinus arboreus Joseph P. Tracy 1947-7-3 17763 Humboldt mouth of Little River Comment
  UCSB26618  Lupinus arboreus Havlik, Neil 1968-8-21 Humboldt Along U.S. Highway 101; west of Arcata Airport 6 Comment
  JEPS64982  Lupinus bicolor Lincoln Constance 1934-5-26 664 Humboldt s end Dyerville (South Fork Eel River); South Fork Eel River 45 Comment
  SEINET12154554  Lupinus formosus var. bridgesii J. P. Tracy 1941-1 16997 Humboldt Blue Lake Comment
  HSC48616  Lupinus latifolius Mark Flippo 1978-5-29 93 Humboldt MKinleyville, Bella Vista Rd. Comment
  UC1223262  Lupinus lepidus var. lobbii Joseph P. Tracy 1933-7-25 12874 Humboldt Grouse Mountain, near Clear Lake 1524 Comment
  HSC100522  Lupinus nanus Carl C. Marshall 1885-5-11 34 Humboldt Peninsula near Fairhaven. Comment
  UC774984  Lupinus polyphyllus var. polyphyllus Carl B. Wolf 1937-8-11 9144 Humboldt 1/2 mi e Alton; e of Alton 21 Comment
  SEINET200687  Lupinus propinquus J. P. Tracy 1901-6-16 1141 Humboldt Bluff at Bucksport, immediate vicinity of Eureka. 152 Comment
  SEINET10488861  Lupinus rivularis Smith 1948-5-4 Smith 48203 Humboldt Hwy. 101--Orick, n of bridge. Comment
  UCD109516  Lupinus rivularis P. B. Kennedy 1929-6-12 s.n. Humboldt Around Eureka. Comment
  HSC58042  Lupinus tracyi Gilbert Muth 1979-8-1 11890 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC85902  Luzula comosa Barry Silver 1986-4-23 533 Humboldt Bair Rd., 10 mi. NW of junction with Hwy. 299: Pine Ridge Summit Area 997 Comment
  CAS-BOT-BC436746  Luzula comosa var. comosa Harley P. Chandler 1901-5-1 1159 Humboldt North Coast Ranges: Humboldt Bay 30 Comment
  CAS-BOT-BC499137  Luzula macrantha Peter F. Zika 2011-7-3 25497 Humboldt Titlow Hill Road, 3.7 road miles SE of Rte 299 at Berry Summit, 1 air km SSW of Horse Mountain 1310 Comment
  CAS-BOT-BC441228  Luzula macrantha Joseph P. Tracy 1926-5-2 7446 Humboldt North Coast Ranges: Willow Creek Canyon, near Ruby Creek 609 Comment
  HSC96476  Lycopodiella inundata Gordon Leppig 1997-6-19 460 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  UC1440279  Lycopodiella inundata L. L. Kiefer and D. Branscomb 1964-5-20 1436 Humboldt in the sphagnum bog Big Lagoon State Park 15 Comment
  UC1745150  Lycopodium clavatum Clare T. Golec 2000-6-14 Humboldt Along the V-4 line on the lowerslopes of the South Fork Little River 243 Comment
  CAS-BOT-BC215685  Lycopus uniflorus Henry M. Pollard 1956-10-9 s.n. Humboldt Sand-bar near Fig Tree Riffle at Woodson Mine, Klamath River, Orleans Comment
  CHSC7077  Lysichiton americanus K. Cox 1969-4-2 7 Humboldt Patrick's Point St. Pk. ca. 100 ft. S. campsite #43. Comment
  HSC93250  Lysichiton americanus Gordon Leppig 1998-3-9 712 Humboldt Arcata, Alder Grove Pond, E side 12 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
  HSC43203  Lythrum hyssopifolia R. Sutherland 1976-8-13 17 .13876 Humboldt Gravel bar in Redwood Creek in Redwood grove. 87 Comment
  HSC46957  Lythrum hyssopifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9203 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC71712  Madia exigua M. A. Baker 1980-6-26 2431 Humboldt Near Sims Creek 610 Comment
  SEINET7016732  Madia exigua Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near west end of Bald Hills, southeast of Orick. Comment
  HSC35783  Madia gracilis Thomas W. Nelson, B. Reinhardt 1975-7-30 2090 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  HSC96938  Madia gracilis Whitney Meier, Elizabeth Kimbrough 2007-6-11 6 Humboldt Cold Springs Camp, 14.1 mi S of Hwy. 299 on NF1 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
  HSC5990  Madia sativa W. D. Stevens 1967-7-22 63 Humboldt Above the dirt road from old Hwy. 101 to the top of N bank of Mad River Comment
  RSA20801  Mahonia nervosa C. B. Wolf 1937-8-13 9266 Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  RSA246852  Mahonia nervosa R. F. Thorne, P. Everett 1965-8-5 35138 Humboldt Mt. Chamisal: below sumit. 534 Comment
  RSA2935  Mahonia nervosa C. B. Wolf 1931-8-30 2375 Humboldt 11 miles above Blue Lake on the Lord Ellis Road to Willow Creek 305 Comment
  RSA46904  Mahonia nervosa Doris K. Kildale 1926-12-26 2882 Humboldt Kneeland, near water trough. Comment
  HSC15589  Maianthemum dilatatum Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC47498  Maianthemum dilatatum Sheila Logan 1978-4-10 23 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  CAS-BOT-BC508509  Maianthemum dilatatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC508520  Maianthemum dilatatum Ella Dales Cantelow 1936-5-18 1354 Humboldt 5 miles north of Orick Comment
  HSC15591  Maianthemum dilatatum W. F. Nickel 1965-5-15 Humboldt 0.5 mi. E of Arcata on rd. to Arcata Reservoir Comment
  HSC15592  Maianthemum dilatatum J. W. Johnson 1962-4-21 1287 Humboldt Samoa Peninsula, Arcata Comment
  RSA24336  Maianthemum dilatatum Carl B. Wolf 1941-2-25 9959 Humboldt South side of Freshwater Lagoon 61 Comment
  RSA376910  Maianthemum dilatatum W. Hutchinson 1927-05 s.n. Humboldt Humboldt County Comment
  HSC40028  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson, Jane P. Nelson 1976-6-22 2874 Humboldt Area at Goat Hill. 1666 Comment
  RSA21602  Maianthemum racemosum subsp. amplexicaule Carl B. Wolf 1937-9-14 9349 Humboldt North Coast Range, Lord Ellis Road, 0.5 mile east of summit of Willow Creek Grade 762 Comment
  HSC101981  Maianthemum stellatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 878 Humboldt Patterson Meadows 1566 Comment
  SDSU19200  Maianthemum stellatum Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3010 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. 1401 Comment
  BLMAR283  Maianthemum stellatum Jennifer Anthony-Wheeler 1999-4-28 283 Humboldt King range Comment
  CAS-BOT-BC512769  Maianthemum stellatum Carl B. Wolf 1937-6-18 8887 Humboldt Table Bluff between Humboldt Bay and Eel River 30 Comment
  CAS-BOT-BC512771  Maianthemum stellatum V. Rattan 1883-6-1 s.n. Humboldt Near summit between Pilot Creek and South Fork Trinity River Comment
  HSC34633  Maianthemum stellatum Robert M. Specht 1975-4-9 123 Humboldt Along base of ocean bluff from end of Murray Rd. 6 Comment
  RSA29747  Malus fusca E. K. Balls 1953-10-12 18634 Humboldt moist ditches, road to Crannell, 0.5 mi. E from Hwy 101, near first overhead bridge. 15 Comment
Read comments
May 24 2020
  UC1198760  Malus fusca J. P. Tracy 1899-5-14 102 Humboldt Eureka 0 Comment
  UC154239  Malus fusca J. P. Tracy 1909-5-2 2954 Humboldt immediate vicinity Eureka 0 Comment
  UC484032  Malus fusca C. B. Wolf 1930-10-26 Humboldt s edge Big Lagoon (near the Redwood Highway) 3 Comment
  UC1197979  Malva nicaeensis Joseph P. Tracy 1924-6-28 6699 Humboldt Northern Coast Ranges, Hydesville Hydesville; Northern Coast Ranges, Hydesville 60 Comment
  JEPS42489  Marah oregana W. L. Jepson 1902-6-24 1931 Humboldt Blue Lake Comment
  POM128304  Marah oregana H. P. Chandler 1901-6-10 1407 Humboldt Saint's Rest; Klamath River. 152 Comment
  HSC25766  Medicago lupulina Jana Kattenhorn 1970-10-28 150 Humboldt Mad River Bottoms, N Bank off Essex, off Hwy. 299 Comment
  UCD107899  Medicago polymorpha W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  HSC43158  Medicago praecox R. Sutherland 1976-8-19 4 .19876 Humboldt 259 Comment
  SEINET7296138 Image available Melica altissima Joseph P. Tracy 1937-1 15549 Humboldt Trinity Summit; On Ridge 2 miles east of Grove's Prairie. 1524 Comment
  UC552693  Melica aristata Joseph P. Tracy 1935-7-25 14236 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  UC1145138  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Willow Creek Trinity River Valley (Trinity River Valley) 152 Comment
  UC1103761  Melica fugax Joseph P. Tracy 1913-6-17 4193 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  HSC10375  Melica torreyana A. H. Murphy 1951-4-18 20 Humboldt Ft. Seward. 183 Comment
  HSC15012  Melilotus officinalis Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  JEPS63457  Mentha aquatica Joseph P. Tracy 1927-10-8 8388 Humboldt Arcata Bottom 9 Comment
  SD42344  Mentha canadensis Carl B. Wolf 1937-9-12 9329 Humboldt Big Lagoon, south side along Redwood Highway. 6 Comment
  POM174071  Mentha canadensis Joseph P. Tracy 1918-9-29 5105 Humboldt South Fork of Eeel River 4 miles above the mouth. Comment
  UC1239689  Mentha spicata Joseph P. Tracy 1933-10-22 13104 Humboldt Trinity River Valley opposite mouth of Willow Creek Lack Pond; Northern Coast Ranges, Trinity River Valley oppos Willow Cre 152 Comment
  JEPS26724  Mentzelia laevicaulis var. laevicaulis W. L. Jepson 1936-8-17 17939 Humboldt near Arcata; Mad River Comment
  CAS-BOT-BC348373  Micropus californicus var. californicus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC322677  Microseris laciniata S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3482 Humboldt Highway about one mile west of Bridgeville Comment
  UC92136  Microseris laciniata subsp. leptosepala Harley P. Chandler June 1901 1408 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  SEINET11810183  Microseris laciniata subsp. leptosepala J. P. Tracy 1947-1 17828 Humboldt Horse Mountain 1128 Comment
  BLMAR683  Mimulus aurantiacus Jennifer Wheeler 2013-6-7 683 Humboldt King range, Strawberry Rock 35 Comment
  HSC89605  Mimulus aurantiacus var. aurantiacus M. Roantree 1985-5-7 36 Humboldt W side of Trinidad Head, along trail. Comment
  JEPS32498  Mimulus aurantiacus var. aurantiacus Peter H. Raven 1963-5-15 18375 Humboldt about 1.5 mi s Trinidad (Luffenholz Beach) Comment
  UC169016  Mimulus aurantiacus var. aurantiacus Harley P. Chandler 1901-5-22 1240 Humboldt near Nance's; North Coast Ranges, Mad River 91 Comment
  HSC20704  Mimulus cardinalis Paul Shields 1955-8-12 Humboldt 1/2 mi. N of Miranda Comment
  RSA43890  Mimulus cardinalis H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  HSC20710  Mimulus dentatus R. C. Wunner 1962-5-21 Humboldt Redwood Creek, 50 yds. from trail to HSC. Dorm on road to reservoir Comment
  UC336872  Mimulus dentatus V. Rattan June 1882 Humboldt Humboldt Bay Comment
  UC582703  Mimulus guttatus Joseph P. Tracy 1935-5-25 13859 Humboldt Fort Seward 106 Comment
  HSC20729  Mimulus guttatus D. E. Anderson 1961-8-25 1741 Humboldt 1.5 mi. S of Trinidad Comment
  SEINET4678005  Mimulus guttatus Jan G. Cooper 1977-6-22 59 Humboldt Mouth of Mattole River along base of cliff. 1/4 mile away from the ocean.; 0 Comment
  UC582712  Mimulus inodorus Joseph P. Tracy 1935-7-24 14198 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  JEPS10794  Mimulus inodorus Lincoln Constance 1934-6-18 895 Humboldt border N. Dyerville Flat (near South Fork R.R. Station and P.O.); South Fork Eel River, Bull Creek Region Comment
  UC582479  Mimulus inodorus Joseph P. Tracy 1933-8-6 12949 Humboldt French Camp Ridge 1066 Comment
  HSC74503  Mimulus moschatus Gail Newton 1980-8-10 2052 Humboldt Near Blake Mtn. 1707 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
  UCSB15766  Mimulus moschatus Breedlove, Dennis 1961-7-4 Humboldt Highway 299; 17.5 miles east of Highway 101 609 Comment
  UC582711  Mimulus nasutus Joseph P. Tracy 1923-5-20 6218 Humboldt Kneeland Prairie 762 Comment
  HSC25985  Mimulus pilosus Thomas W. Nelson 1970-9-3 226 Humboldt Mad River. Comment
  UC582498  Mimulus primuloides subsp. primuloides Joseph P. Tracy 1932-7-14 10534 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC55643  Mimulus pulsiferae Overton, Butler 1979-7-24 9711 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC96198  Mimulus pulsiferae Kaylea Eickhoff, Cara M. Witte 2005-6-15 11 Humboldt 14.1 mi. S of Hwy. 299 on NF1, 0.25 mi. NE of Grouse Mtn. 1400 Comment
  UC1196782  Mimulus pulsiferae Joseph P. Tracy 1933-8-30 13029 Humboldt near Clear Lake; North Coast Ranges, Grouse Mountain 1524 Comment
Read comments
Sep 10 2013
  UC1196783  Mimulus pulsiferae Joseph P. Tracy 1937-6-27 15383 Humboldt w mouth of S. Fork of Trinity River; Friday Ridge 1219 Comment
  CAS-BOT-BC174682  Minuartia cismontana H. E. Parks; J. P. Tracy 1930-5-25 0866 Humboldt Laribee Valley, Eastern Humboldt Co. Comment
  HSC104079  Minuartia decumbens S. Carothers 2001-6-4 Humboldt Six Rivers National Forest; Lassics Botanical Area, ridge off Rd. 1S11 1646 Comment
  RSA21094  Minuartia douglasii C. B. Wolf 1937-6-14 8822 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  UC1198335  Minuartia douglasii Joseph P. Tracy 1933-6-13 12559 Humboldt Bairs Ranch Redwood Creek 609 Comment
  HSC74124  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-6-16 1932 Humboldt Near Monks Camp. 1097 Comment
  HSC74246  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-7-11 2807 Humboldt Near Red Mtn. 1433 Comment
  HSC56219  Mitella caulescens G. L. Clifton, Griswold 1979-8-2 12242 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1198866  Mitella caulescens Joseph P. Tracy 1942-6-28 17268 Humboldt Murphy Meadows Bald Mountain (edges of bog) 975 Comment
  UC1198869  Mitella diversifolia Joseph P. Tracy 1949-7-19 18384 Humboldt Grouse Mountain 1524 Comment
  HSC41896  Mitella ovalis M. A. Baker 1977-4-23 175 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UC14518  Mitella ovalis W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  UC303175  Mitella ovalis Joseph P. Tracy 1923-6-20 6310 Humboldt White Thorn Valley Northern Coast Ranges (banks of creek) 304 Comment
  UC1198865  Mitella ovalis Joseph P. Tracy 1913-4-13 4039 Humboldt on a branch of slough about 3 mi e Eureka; Northern Coast Region, Region about Humbolst Bay, Ryan's Slo 0 Comment
  UC303176  Mitella ovalis Joseph P. Tracy 1923-4-8 6176 Humboldt Carlotta Northern Coast Ranges 60 Comment
  HSC98103  Mitella trifida Cara Witte 2007-6-27 366 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/2 mile east of spring. 1561 Comment
  BLMAR627  Moehringia macrophylla Jennifer Wheeler 2011-6-15 627 Humboldt Lacks Creek, Doug fir understory of Stormy Saddle 1158 Comment
  HSC49983  Moehringia macrophylla M. A. Baker 1979-6-7 788 Humboldt N bank of road to Snow Mtn. 610 Comment
  HSC57122  Monardella odoratissima subsp. pallida Walter Overton, Marvin Butler 1979-7-25 9870 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UC1239683  Monardella sheltonii Joseph P. Tracy 1912-7-26 3867 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC220520  Monardella villosa Jos. Burtt Davy 1899-6-20 5697 Humboldt Hoopa Valley Comment
  UC162959  Monardella villosa subsp. villosa Joseph P. Tracy 1911-7-9 3476 Humboldt Near Willow Creek west side of river; Northern Coast Ranges, Trinity River 182 Comment
  CAS-BOT-BC453471  Monotropa hypopitys Doris K. Kildale 1926-6-6 2111 Humboldt Trail to Gold Bluffs Comment
  HSC65194  Monotropa hypopitys T. Jimerson, J. Pageau, L. Banta 1979-6-18 925 Humboldt Waterman Ridge, at the end of FS 7N02, Willow Creek Comment
  UC1223248  Montia chamissoi Joseph P. Tracy 1950-6-25 18894 Humboldt 3 mi s of Burr Valley (on w side of Buck Mountain, near the Sproston place on the road to the Albee Pass); Buck Mountain 1158 Comment
  CAS-BOT-BC444799  Montia diffusa Don Hagar 1956-5-14 59 Humboldt Brush Mt., ca. 6 miles sw. of Willow Creek 914 Comment
  CAS-BOT-BC444800  Montia diffusa Don Hagar 1957-6-6 59 Humboldt Brush Mountain, ca. 4 miles southwest of Willow Creek 853 Comment
  CAS-BOT-BC444802  Montia diffusa Don Hagar 1957-5-21 59 Humboldt Brush Mountain, 3.5 miles southwest of Willow Creek 853 Comment
  JEPS17205  Montia howellii Joseph P. Tracy 1921-4-24 5431 Humboldt South Fork of Eel River, Phillipsville Flat Eel River; Northern Coast Ranges, Phillipsville Flat, Eel River 91 Comment
  CHSC84555  Montia parvifolia John Dittes; Josephine Guardino 2003-6-7 2003 -64 Humboldt Outer North Coast Range; ca. 2.9 air-mile northwest of Legget, ca. 5.2 air-mile southeast of Piercy, on eastern bank of South Fork Eel River. 182 Comment
  HSC31552  Montia parvifolia Glenn McGourty 1974-5-11 41 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  CAS-BOT-BC445155  Montia parvifolia Doris K. Kildale 1926-5-27 1695 Humboldt Yager Creek, near mouth Comment
  JEPS70787  Myosotis discolor Joseph P. Tracy 1925-5-10 6963 Humboldt near Hydesville; North Coast Ranges 91 Comment
  HSC95678  Myosotis sylvatica Steven Lee 2004-4-13 18 Humboldt Arcata Community Forest, hillside along Jolly Giant Creek Comment
  HSC59659  Myosotis sylvatica Marla J. Carollo 1979-4-10 5 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  SEINET5624090 Image available Myosotis versicolor Joseph P. Tracy 1942-1 17116 Humboldt Englewood Prairie Comment
  POM257618  Myrica californica C. L. Hitchcock, J. S. Martin 1939-7-14 5437 a Humboldt Bluffs facing sea at Shelter cove Comment
  RSA246866  Myriophyllum aquaticum Robert F. Thorne, P. C. Everett 1965-8-9 35330 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC77871  Myriophyllum sibiricum Bob Aaserude 1975-10-18 Humboldt 10 mi. NE of Weitchpec, off Hwy. 96, Fish Lake Comment
  HSC77872  Myriophyllum sibiricum Andy Gordus 1978-1 Humboldt N side of Hwy. 299, near Essex Rd. Comment
  RSA77516  Myriophyllum sibiricum F. W. Peirson 1923-7-11 3786 Humboldt 20 miles north of Eureka. Comment
  HSC15607  Narcissus pseudonarcissus D. B. Mitchell 1965-3-13 - 6 Humboldt 0.5 mi. N of US Coast Guard Station on Samoa Rd. Comment
  UC526762  Nassella lepida Joseph P. Tracy 1933-5-20 12247 Humboldt hillside near Petrolia; Northern Coast Ranges, Mattole Valley 152 Comment
  SEINET201033  Nassella pulchra Joseph P. Tracy 1927-5-8 7963 Humboldt Phillipsville. 122 Comment
  JEPS69507  Navarretia capillaris Joseph P. Tracy 1932-7-10 10374 Humboldt Corral Prairie , Corral Prairie (Trinity Summit) 1584 Comment
  UC908378  Navarretia divaricata subsp. vividior Joseph P. Tracy Jul 16 1930-Jul 19 1930 9065 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  RSA43882  Navarretia intertexta H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  UC146173  Navarretia intertexta Joseph P. Tracy 1908-6 2799 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC34708  Navarretia squarrosa Thomas W. Nelson 1974-7-20 1696 Humboldt McKeown Ranch N of Dinsmore 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
  UC67069  Nemophila menziesii var. atomaria H. P. Chandler 1276 Humboldt Hupa Mts. Comment
  JEPS2987  Nemophila parviflora Lincoln Constance 1934-5-23 606 Humboldt se slope of mt. above Look Prairie (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River, above Look Prairie 365 Comment
  JEPS1938  Nemophila pedunculata Joseph P. Tracy 1917-5-27 4784 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC1103812  Nemophila pedunculata Joseph P. Tracy 1923-2-25 6147 Humboldt Cummings Creek Northern Coast Ranges, , at Cummings Creek (Carlotta) 60 Comment
  UC1103816  Nemophila pedunculata Joseph P. Tracy 1928-3-18 8404 Humboldt Van Duzen River at Grizzly Peak; Van Duzen River at Grizzly Peak 91 Comment
  CAS-BOT-BC60546  Noccaea fendleri subsp. californica Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie. 853 Comment
  HSC6968  Noccaea fendleri subsp. californica D. E. Anderson 1963-5-19 2465 Humboldt Comment
  HSC93914  Noccaea fendleri subsp. glauca D. K. Imper Apr 1996 Humboldt W side of Horse Mtn., near hairpin in road, 1 mi. before junction 1067 Comment
  HSC31757  Notholithocarpus densiflorus var. densiflorus Timothy B. Devine 1974-5-4 323 Humboldt On the bank of Chezem Rd. at junction of Hwy. 299 457 Comment
  HSC37350  Notholithocarpus densiflorus var. densiflorus Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 483 Humboldt Along Lost Man Creek. 38 Comment
  UCR45372  Notholithocarpus densiflorus var. densiflorus Barry Silver 1986-4-13 505 Humboldt Bair Road, 6.4 mi. WSW of Hoopa Comment
  CAS-BOT-BC142293  Oemleria cerasiformis Doris K. Kildale 1927-5-13 3140 Humboldt Redwood Creek at Berry's 289 Comment
  UC314583  Oenanthe sarmentosa Joseph P. Tracy 1924-9-28 6910 Humboldt Centerville Northern Coast Ranges, Centerville 6 Comment
  SEINET12119027  Oenanthe sarmentosa J. P. Tracy 1950-1 19348 Humboldt Field's Landing, 2 mi S of town 6 Comment
  CAS-BOT-BC171605  Oenothera wolfii L. R. Abrams 1918-6-16 7168 Humboldt Willow Creek Comment
  RSA21623  Oenothera wolfii Carl B. Wolf 1937-9-9 9307 Humboldt 2 miles S of Cape Mendocino. 6 Comment
  CHSC12923  Orobanche californica subsp. californica K. D. Cox 1974-6-7 189 Humboldt Big Lagoon County Park, on Hwy. 101, about 7 mi. N. of Tinidad. Next to parking lot. 0 Comment
  UC1245403  Orobanche fasciculata Joseph T. Gregory 1935-7-30 860 Humboldt Salmon Summit. Comment
  UC1197566  Orthilia secunda Joseph P. Tracy 1940-7-7 16663 Humboldt Grouse Mt. on Friday Ridge 1371 Comment
  UC56315  Orthilia secunda Joseph Burtt Davy Jun 21-23 1899 5751 Humboldt Trinity Summit Comment
  HSC102044  Orthocarpus imbricatus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 947 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC34279  Orthocarpus imbricatus K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  HSC44558  Orthocarpus imbricatus Brad Klipfel 1973-7-15 177 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC31140  Osmorhiza berteroi J. O. Sawyer, R. J. Cole 1970-6-24 2271 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  HSC56091  Osmorhiza occidentalis G. L. Clifton, Terry Griswold 1979-7-31 11784 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  JEPS14244  Osmorhiza occidentalis Joseph P. Tracy 1932-7-12 10471 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  UC642277  Osmorhiza occidentalis Joseph P. Tracy 1933-7-26 12906 Humboldt Grouse Mountain 1630 Comment
  BLMAR235  Oxalis Jennifer Anthony-Wheeler 1996-9-26 235 Humboldt King range, growing creekside of bear creek btween campgrounds 548 Comment
  HSC16718  Oxalis articulata subsp. rubra David K. Smith 1968-11-20 70 Humboldt At jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  HSC16728  Oxalis articulata subsp. rubra W. F. Nickel 1965-5-15 Humboldt 1/4 mi. E of Arcata on Rd. to Arcata Reservoir, near Jolly Giant parking lot. Comment
  UCR179287  Oxalis oregana R. G. Swinney 1968-3-8 216 Humboldt Arcata 152 Comment
  JEPS43139  Oxalis oregana W. L. Jepson 1932-7-28 16432 Humboldt Bull Creek Flat Comment
  POM278933  Oxalis oregana Lyman Benson 1927-7-12 225 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  UC203882  Oxalis oregana Joseph P. Tracy 1918-5-28 4940 Humboldt e Bald Mt. (High Prairie Creek); Northern Coast Ranges 914 Comment
  SD64134  Oxalis rubra W. Bertsch 1953-7-30 221 Humboldt Redwoods-Dyerville-Highway 101 60 Comment
  UCD134738  Packera bolanderi var. bolanderi K. Esau 1934-5-8 s.n. Humboldt Redwood Highway, near Scotia. Comment
  UC183769  Paeonia brownii Joseph P. Tracy 1913-6-17 4150 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  UC1145220  Panicum acuminatum var. acuminatum Joseph P. Tracy 1939-7-9 16323 Humboldt Bald Mountain at Lake Prairie; Bald Mountain at Lake Prairie 1066 Comment
  UC39270  Panicum acuminatum var. acuminatum Harley P. Chandler June, 1901 1513 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  HSC13259  Parapholis incurva D. E. Anderson 1965-6-10 3786 Humboldt E part of Eureka. Comment
  CAS-BOT-BC253924  Parapholis incurva S. K. Harris; J. P. Tracy 1936-6-6 3218 Humboldt Near railroad station, Eureka Comment
  CDA15537  Parentucellia viscosa G. F. Hrusa 1998-7-5 14705 Humboldt Klamath Ranges; Hwy 299, N side at summit of pass W of Willow Creek. Comment
  CDA6200  Parentucellia viscosa D. G. Kelch 2007-7-25 7 .505 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  UC1222445  Parentucellia viscosa Joseph P. Tracy 1938-6-17 15953 Humboldt Cape Mendocino 152 Comment
  UC885089  Parentucellia viscosa John Thomas Howell 1937-7-31 13719 Humboldt 3 mi w Korbel Comment
  UCR30860  Parentucellia viscosa A. C. Sanders 1981-8-6 2307 Humboldt Russ Park, City of Ferndale 46 Comment
  CDA6383  Parentucellia viscosa Mills Jul 1948 Humboldt 0 Comment
  HSC104072  Parnassia palustris S. Carothers 2001-8-29 Humboldt Six Rivers National Forest; Lassics Botanical Area 1537 Comment
  HSC24106  Paxistima myrsinites J. O. Sawyer 1971-6-14 2378 Humboldt E Fork of Horse Linto Creek at Grizzly Camp. 1341 Comment
  UC1199004  Paxistima myrsinites Joseph P. Tracy 1935-7-29 14346 Humboldt near Ranger Station Trinity Summit 1584 Comment
  UC169890  Paxistima myrsinites Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5754 Humboldt Trinity Summit Comment
  SJSU2547  Pectiantia ovalis H. L. Buckalew 1962-6-28 Humboldt Prairie Cr Redwoods State Park Comment
  HSC104037  Pedicularis densiflora C. Reynolds 2015-3-21 23 Humboldt Willow Creek; at the entrance to Camp Kimtu 159 Comment
  HSC60284  Pedicularis densiflora Richard Spjut 1979-3-25 5425 Humboldt Tish Tang Campground, 2 mi. E of Hoopa, above the river Comment
  RSA21441  Penstemon anguineus Carl B. Wolf 1937-8-12 9205 Humboldt North Coast Range, South Fork Mt., Trinity Co line. 1585 Comment
  SDSU10915  Penstemon anguineus D. F. Howe 1964-8-7 3945 Humboldt 6.2 miles from #96 on Mill Creek Road, Hoopa Valley. 1067 Comment
  NY601689  Penstemon heterophyllus var. heterophyllus J. P. Tracy 1933-6-25 12616 Humboldt Camp Grant, along Eel River, 2 to 5 miles east of the South Fork 45.7 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
  JEPS11624  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-24 15512 Humboldt 2 mi se Devil's Hole; Trinity Summit, se of Devil's Hole 1584 Comment
  NY604558  Penstemon laetus var. sagittatus R. W. Spellenberg 1990-7-10 10241 Humboldt Extreme east edge county, 11 air miles east of Burnt Ranch at 11 miles south of Berry Summit (on California Highway 299) on USFS 1 1432.6 Comment
  UC162565  Penstemon laetus var. sagittatus Joseph P. Tracy 1911-7-6 3344 Humboldt mountain slopes along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges 762 Comment
  HSC100914  Penstemon menziesii Carl C. Marshall Jun 1886 305 Humboldt Trail E of Hoopa. Comment
  HSC56080  Penstemon newberryi subsp. berryi G. L. Clifton, Terry Griswold 1979-7-31 11768 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  RSA0094697  Pentagramma triangularis A. Davidson 1923-8-11 17064 Humboldt Near Scotia. Comment
  UC1222747  Perideridia howellii Joseph P. Tracy 1950-8-18 19331 Humboldt along creek 1/2 mi along Blocksburg Rd w from bridge across creek; Larrabee Creek Comment
  HSC56076  Perideridia kelloggii G. L. Clifton, Terry Griswold 1979-7-31 11752 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC102170  Perideridia oregana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1082 Humboldt Patterson Meadows 1555 Comment
  UC129570  Petasites frigidus var. palmatus Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UC1222904  Phacelia bolanderi Joseph P. Tracy 1950-6-18 18852 Humboldt Briceland Comment
  UC582693  Phacelia bolanderi Joseph P. Tracy 1937-6-20 15341 Humboldt 10 mi up stream from mouth; Bear River 152 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
  UC673228  Phacelia heterophylla subsp. virgata Lincoln Constance and Reed C. Rollins 1942-5-11 2876 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  HSC57658  Phacelia mutabilis G. L. Clifton, Griswold 1979-7-25 10831 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC58339  Phacelia mutabilis Overton, Butler 1979-8-2 12654 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC41590  Phacelia mutabilis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3615 Humboldt Alder Springs 1524 Comment
  JEPS1133  Phacelia nemoralis subsp. oregonensis W. L. Jepson 1902-6-20 1896 Humboldt = Mail Ridge Fort Seward Ranch Ridge 396 Comment
  JEPS81028  Phacelia nemoralis subsp. oregonensis James P. Smith 1973-5-26 6871 Humboldt near Rio Dell (bluffs along river); Eel River, Scotia Bluffs Comment
  UC1051815  Phacelia nemoralis subsp. oregonensis C. R. Bell May, 1951 1098 Humboldt bank below US Hwy 101 2.9 mi n Mendocino County line Comment
  HSC102194  Phacelia procera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1108 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  UCD88519  Phalaris arundinacea J. W. Logan 1926-6-2 2 Humboldt Ferndale. Rusk Ranch. Comment
  CDA304  Phalaris arundinacea J. W. Logan 1926-6-2 2 Humboldt Russell Ranch, Eureka. 0 Comment
  UCD89189  Phalaris minor A. H. Murphy 1951-6-6 s.n. Humboldt W Roscoe at Upper Mattole. Comment
  CAS-BOT-BC250685  Phalaris paradoxa W. A. Silveus 1931-6-9 2990 Humboldt Dyerville Comment
  HSC98094  Philadelphus lewisii Cara Witte 2007-7-11 484 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  UC492217  Philadelphus lewisii Joseph P. Tracy 1929-7-27 8646 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  RSA0057781  Philadelphus lewisii Joseph P. Tracy 1950-6-18 18853 Humboldt Along Redwood Creek, 2 miles W of Briceland. Comment
  RSA12538  Phleum alpinum C. B. Wolf 1934-7-2 5900 Humboldt Snow camp. (Mts. east of Korbel) 1372 Comment
  UC184008  Phleum alpinum Joseph P. Tracy 1912-7-31 3908 Humboldt on nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope of Buck Mountain 1066 Comment
  UC526750  Phleum alpinum Joseph P. Tracy 1932-7-10 10388 Humboldt Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  HSC100894  Phlox adsurgens Carl C. Marshall Jun 1886 324 Humboldt Trail E of Hoopa. Comment
  UC52675  Phlox adsurgens Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  SEINET10496854  Phlox diffusa Jones 1985-5-5 Jones 27 Humboldt T34n,r4e,sec.14, titlow road. Ca 8 miles s off hwy 299 going to horse mt. Found At intersection of titlow rd. And the raod to horse mt. Summit. Pinus, arbutus, Quercus chrysolepis, quercus vaccinifolia habitat 1143 Comment
  UC52845  Phlox gracilis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5789 Humboldt Trinity Summit Comment
  SEINET11763301  Phyllospadix torreyi H. E. Parks 1933-1 s.n. Humboldt Spruce Cove, Trinidad Comment
  HSC1356  Picea sitchensis S. J. Hawks 1965-3-19 9 Humboldt 1/4 mi. W of Fairhaven Comment
  RSA0116907  Picea sitchensis Lyman Benson 1949-9-4 14188 Humboldt Bishop Pine Lodge, 5 miles North of Trinidad. Mt. Range: North Coast Ranges. 15 Comment
  SD42286  Pinus attenuata Carl B. Wolf 1937-8-13 Humboldt North Coast Range, 8 miles east of Hoop Valley on new road towards Trinity Summit 1220 Comment
  HSC1482  Pinus contorta S. J. Hawks 1965-3-12 5 Humboldt 0.25 mi. W of Fairhaven Comment
  UCSB10482  Pinus contorta Phillips, Priscilla 1958-6-7 Humboldt Patrick's Point, north of Trinidad 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
  NY49720  Pinus contorta var. contorta L. Abrams 1916-7-18 6074 Humboldt Arcata to Trinidad Comment
  POM199392  Pinus contorta var. contorta H. E. Parks 1931-05 s.n. Humboldt Samoa, Pine Barrens. Comment
  POM21765  Pinus contorta var. contorta L. R. Abrams 1916-7-18 6074 Humboldt Arcata to Trinidad. Comment
  RSA175259  Pinus contorta var. contorta Robert F. Thorne 1957-9-3 19017 Humboldt Patrick s Point State Park. Comment
  HSC44319  Pinus monticola Brad Klipfel 1975-6-17 670 Humboldt Horse Mtn. Comment
  HSC44345  Pinus monticola Brad Klipfel 1975-6-17 691 Humboldt Horse Mtn. Comment
  HSC1529  Pinus muricata R. A. Magie 1964-5-3 46 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  UC1600428  Pinus ponderosa Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  UC55660  Pinus ponderosa P. E. Goddard 1901-7-10 51 Humboldt ona Hupa (<currently spelled Hoopa as a place name>) Comment
  UC176371  Piperia michaelii Joseph P. Tracy 1912-7-21 3763 Humboldt Alton Northern Coast Ranges 30 Comment
  RSA273298  Piperia transversa J. D. Ackerman 1974-8-13 404 Humboldt Ca. 2 miles north of Manila, between sand dunes and Mad River Slough Comment
  HSC98111  Piperia unalascensis Cara Witte 2007-6-26 356 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  HSC35168  Pityopus californicus S. Veirs, G. Lester, R. Yearout 1975-7-10 744 Humboldt Redwood National Park, Gann's Woods. 366 Comment
  HSC44656  Pityopus californicus M. A. Baker 1978-7-19 623 Humboldt Bulk Collection 136 Comment
  UC1121030  Pityopus californicus R. Stahelin 1933-7-20 Humboldt Korbel Eureka Quad. (yield Plot #16, se of Riverside Plant) Comment
  UC667001  Plagiobothrys bracteatus Joseph P. Tracy 1939-4-29 16232 Humboldt Hoopa Valley 106 Comment
  UC881326  Plagiobothrys bracteatus Alice Eastwood and John Thomas Howell 1937-6-23 4811 Humboldt Little Van Duzen River Comment
  HSC79417  Plagiobothrys nothofulvus Kenneth Clark 1980-4-18 585 Humboldt On Coastal Bluffs above Dead Man's Gulch 137 Comment
  SD29277  Plagiobothrys nothofulvus Lincoln Constance 1934-5-23 617 Humboldt South Fork Eel River; southeast slope of mountain above Look Prairie. 366 Comment
  UC1239569  Plagiobothrys reticulatus Joseph P. Tracy 1909-5-23 2972 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  UC1239610  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-21 14997 Humboldt Iaqua 609 Comment
  JEPS60972  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1937-6-20 15351 Humboldt 10 mi up stream from mouth; Bear River 152 Comment
  SD29280  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1904-7-4 2111 Humboldt Eureka Comment
  JEPS60976  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-30 4486 Humboldt Hydesville 60 Comment
  JEPS60979 Image available Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1903-5-22 1878 Humboldt Alder Point Flat Eel River Comment
  OBI20599  Plagiobothrys scouleri Joseph P. Tracy 1949-6-25 18353 Humboldt Trinity summit, meadow at Box Camp Comment
  HSC69871  Plagiobothrys tenellus Thomas W. Nelson 1978-5-28 4093 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC16836  Plantago lanceolata A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction, 200 yds. W of Lindsey Creek Comment
  SEINET10782201  Plantago major J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13016 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  UCD124624  Plantago maritima James Payne Smith Jr. 1970-6-7 3813 Humboldt 0.6 miles north of Luffenholtz Beach along California 1 near Trinidad. Comment
  HSC54704  Platanthera dilatata Overton, Butler 1979-7-26 10030 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC62909  Platanthera dilatata J. M. DiTomaso 1979-5-20 1048 Humboldt Big Lagoon Park, 8 mi. N of Trinidad Comment
  HSC34285  Platanthera dilatata var. leucostachys Ken Irwin 1975-8-16 Humboldt Grogans Hole Area Comment
  HSC99138  Platanthera dilatata var. leucostachys Cara Witte 2008-8-6 1002 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  UCSC000161  Platanthera leucostachys W. Jan Rowe 1967-1 Humboldt Comment
  CAS-BOT-BC91640  Platystemon californicus Doris K. Kildale 1931-5-24 10847 Humboldt Little Laribee [Larabee], Laribee [Larabee] Valley. Comment
  SEINET3124150 Image available Platystemon californicus Joseph P. Tracy 1904-5-1 2047 Humboldt Region about Humboldt Bay, sandy field at Bucksport 0 Comment
  SEINET780341  Plectritis M. A. Baker 1980-3-7 1151 Humboldt confluence of Pine and Burndt Ranch Creeks Comment
  JEPS4811  Plectritis brachystemon Joseph P. Tracy 1932-6-26 10255 Humboldt Valley of South Yager Creek 762 Comment
  JEPS4812  Plectritis brachystemon Joseph P. Tracy 1936-7-5 15037 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC169026  Plectritis brachystemon J. P. Tracy 1908-7-9 2833 Humboldt Buck Mountain 1219 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
  HSC104444  Plectritis congesta subsp. brachystemon Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 27 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC45385  Pleuricospora fimbriolata R. York 1978-5-20 174 Humboldt Along Bluff Creek trail. 610 Comment
  JEPS109805  Pleuropogon refractus Dean W. Taylor 2004-6-24 19141 Humboldt head of Madden Creek, Ammon Ridge, seepage area along logging spur road arterial to Forest Road 5N81 1432 Comment
  SJSU16005  Pleuropogon refractus John Rawlings 2016-5-19 1802 Humboldt James Irvine Trail between the lower trailhead and the Fern Canyon turnoff, Prairie Creek Redwoods State Park 22 Comment
  UC1103801  Pleuropogon refractus Joseph P. Tracy 1911-6-4 3234 Humboldt along Little River, 5 mi from the coast Little River; Northern Coast Region, Little River 121 Comment
  RSA10141  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt Klamath Mountains, Trinity Summit, Head of Brett Hole 1829 Comment
  CAS-BOT-BC254897  Poa bulbosa Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  SEINET200569 Image available Poa bulbosa Joseph P. Tracy 1942-2-6 17104 Humboldt Valley of South Yager Creek 762 Comment
  HSC10684  Poa confinis R. D. Rogers 1964-4-10 6 Humboldt N Spit, Humboldt Bay. Comment
  JEPS71272  Poa douglasii unknown 1925-8-2 119 Humboldt Samoa Comment
  JEPS71279  Poa douglasii unknown 1925-7-29 118 Humboldt Samoa Comment
  POM161908  Poa howellii Joseph P. Tracy 1921-4-24 5451 Humboldt Phillipsville. Facing south fork of Eel River. 91 Comment
  UC187251  Poa kelloggii Joseph P. Tracy 1911-6-4 3219 Humboldt along Little River (5 mi from coast); Northern Coast Region 121 Comment
  HSC10693  Poa macrantha J. W. Johnson 1961-9-3 1080 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  RSA21035  Poa macrantha C. B. Wolf 1937-6-18 8904 Humboldt Centerville Beach 3 Comment
  HSC39187  Poa pratensis D. E. Anderson, J. P. Smith 1971-6-28 - 1226 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC70247  Poa pratensis M. A. Baker 1980-6-8 1916 Humboldt Near Buck Flat. 1554 Comment
  HSC102087  Poa secunda subsp. secunda M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 990 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CHSC23080  Polygala californica Robert A. Schlising 1963-6-3 2581 Humboldt Coast Ranges. 3.5 miles north of Garberville. Comment
  HSC31205  Polygala californica D. E. Anderson 1972-6-20 5743 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC35937  Polygala californica Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2030 Humboldt French Camp, Bald Hills. Comment
  POM138540  Polygala californica H. P. Chandler 1901-06 1328 Humboldt Hupa Indian Reservation. 152 Comment
  HSC39221  Polygala californica D. E. Anderson, J. P. Smith 1971-7-6 - 1321 Humboldt E of Pine Ridge Summit Comment
  HSC98083  Polygala cornuta var. cornuta Cara Witte 2007-7-10 475 Humboldt Horse Mountain Botanical Area. Forest service Road 6N36A. 1334 Comment
  UC1198989  Polygala cornuta var. cornuta Joseph P. Tracy 1939-8-16 16414 Humboldt barren places Horse Mountain 1432 Comment
  SEINET10537775  Polygonum Mary Susan Taylor 1990-8-22 Taylor 6081 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC12419  Polygonum aviculare D. Santana 1970-10-15 70 Humboldt 10th and G St. behind Regal Gas Station Comment
  HSC100602  Polygonum convolvulus Carl C. Marshall Sep 1886 246 Humboldt Fields near Arcata. Comment
  CAS-BOT-BC414466  Polygonum douglasii Doris K. Kildale 1925-8-17 1231 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  JEPS79955  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1940-8-25 16707 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA275282  Polygonum kelloggii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4391 Humboldt [Unspecified] 1616 Comment
  BLMAR720  Polygonum paronychia Jennifer Wheeler 2011-5-20 720 Humboldt King range, Below Strawberry Rock along Mattole dunes 7 Comment
  CDA2916  Polygonum sachalinense T. C. Fuller 1968-7-3 17443 Humboldt West side of the south-bound lanes of Highway 101 freeway, just north of the South Bay Depot Road, Fields Landing. 0 Comment
  HSC35604  Polygonum spergulariiforme Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2015 Humboldt French Camp, Bald Hills. Comment
  HSC54719  Polygonum spergulariiforme Overton, Butler 1979-7-26 10094 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  SEINET3404060 Image available Polygonum spergulariiforme H. E. Parks, J. P. Tracy 1930-9-15 767 Humboldt Bald Hills, Kneeland Comment
  SEINET3404070 Image available Polygonum spergulariiforme Joseph P. Tracy 1947-7-9 17835 Humboldt Horse Mountain, Jeffrey Pine Comment
  CAS-BOT-BC76844  Polypodium glycyrrhiza Donald Branscomb 1959-2-1 s.n. Humboldt Trinidad Comment
  CAS-BOT-BC76846  Polypodium glycyrrhiza Doris K. Kildale 1926-2-22 1468 Humboldt Dobbyns Creek Comment
  SEINET200791 Image available Polypodium glycyrrhiza Joseph P. Tracy 1914-5-14 4429 Humboldt Fort Seward 122 Comment
  UC370620  Polypodium glycyrrhiza H. E. Parks 1925-6-17 3233 Humboldt Lawrence Creek Comment
  UC43119  Polypodium scouleri J. P. Tracy 1901-4-17 Humboldt Samoa; Humboldt Bay Comment
  HSC59125  Polypogon australis Terry Roth 1979-4-28 17 Humboldt Glendale exit off of Hwy. 299, gravel road towards Mad River 30 Comment
  CAS-BOT-BC233071  Polypogon interruptus Joseph P. Tracy 1927-7-16 8261 Humboldt Eureka 60 Comment
  POM252888  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile NE of Samoa 3 Comment
  RSA129382  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile NE of Samoa 3 Comment
  UCD91265  Polypogon monspeliensis Harley P. Chandler 1901-6-1 1431 Humboldt North Coast Ranges. Klamath River. 335 Comment
  SEINET11681498  Polypogon monspeliensis H. P. Chandler 1901-1 1431 Humboldt Klamath River, North Coast Ranges 335 Comment
  HSC70749  Polystichum imbricans R. York 1980-5-17 534 Humboldt Near Le Perron Peak 1066 Comment
  HSC70983  Polystichum imbricans Gail Newton 1980-7-22 1662 Humboldt Near Devils Backbone 1554 Comment
  SDSU276  Polystichum munitum D. R Harvey 1938-8-13 2251 Humboldt Redwood Park. Comment
  SEINET11722267  Polystichum munitum C. S. Kaut 2000-1 2 Humboldt Trinidad Comment
  HSC56204  Populus trichocarpa G. L. Clifton, Griswold 1979-8-2 12195 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UCSB30604  Potamogeton natans Edwards, David 1974-7-26 Humboldt Pond ca. 50 ft. NW of Grand Rd., ca. 1.5 mi. SW. of Korbel and ca. 1/2 mi. NE. of Mad River 18 Comment
  HSC17759  Potamogeton nodosus Rollin Sparrowe 1962-4-7 11 Humboldt Clam Beach Lagoons off Hwy. 101 Comment
  RSA21017  Potentilla anserina var. grandis Carl B. Wolf 1937-9-12 9326 Humboldt Dry Lagoon State Park. 5 Comment
  RSA246705  Potentilla anserina var. grandis Robert F. Thorne, Percy C. Everett 1965-8-7 35228 Humboldt Samoa Peninsula. 3 Comment
  HSC98969  Potentilla glandulosa subsp. reflexa Cara Witte 2007-6-27 364 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/4 mile east of spring. 1583 Comment
  RSA12434  Potentilla gracilis Carl B. Wolf 1934-7-2 5859 Humboldt 5.5 miles from Bald Mt. on road to Snow Camp 915 Comment
  UC585628  Potentilla gracilis var. gracilis Joseph P. Tracy 1933-8-6 12929 Humboldt on Bald Hills e Orick (Tomlinson Ranch); on Bald Hills e of Orick, Tomlinson Ranch 670 Comment
  SEINET2474968 Image available Potentilla palustris var. villosa Joseph P. Tracy 1923-6-17 6276 Humboldt Big Lagoon 10 Comment
  HSC57112  Prosartes hookeri Overton, Butler 1979-7-25 9855 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC99393  Prosartes hookeri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 42 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC15473  Prosartes smithii D. E. Anderson 1962-3-31 1959 Humboldt Old Hwy. 101, E side of Freshwater Lagoon Comment
  SBBG982  Prosartes smithii H. and M. Dearing 1933-5-16 256 Humboldt near Weott Comment
  HSC60293  Prosartes smithii Phyllis Krieg 1979-4-28 Humboldt Azalea Park along trail, McKinleyville 30 Comment
  SEINET12045060  Prosartes smithii Unknown 1933-1 3413 Humboldt Dyerville, South Fork of Eel River Comment
  RSA424589A  Prunella vulgaris var. lanceolata Bonnie C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  UC1124438  Prunella vulgaris var. lanceolata H. L. Person 1932-7-16 Humboldt Highway n Trinidad; Rock Point Quad. Comment
Read comments
Aug 3 2007
  SD93030  Prunella vulgaris var. lanceolata W. Bertsch 1953-7-30 226 Humboldt Highway 101 near Dyerville. 60 Comment
  CAS-BOT-BC159980  Prunus emarginata Joseph P. Tracy 1934-9-5 13656 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC159988  Prunus emarginata Harley P. Chandler 1901-6-1 1273 Humboldt Hupa Indian Reservation 1066 Comment
  HSC40671  Prunus virginiana var. demissa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2930 Humboldt Bench W of Lassic Park (Signal Peak) 1677 Comment
  UC492199  Prunus virginiana var. demissa Joseph P. Tracy 1928-8-5 8493 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC5694  Pseudognaphalium ramosissimum Jerry Parker 1968-11-19 244 Humboldt Clam Beach, 1/4 mi. S of Strawberry Cr. Comment
  HSC35629  Pseudognaphalium stramineum Thomas W. Nelson, James Nelson 1975-8-5 2142 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  BLMAR704  Pseudognaphalium stramineum Jennifer Anthony-Wheeler 1994-9-8 704 Humboldt Samoa dunes, growing atop a knoll/dune with I the Samoa Pen. Rare plant area 15 Comment
  UC165750  Pseudognaphalium stramineum Joseph P. Tracy 1909-9-19 3089 Humboldt sand dunes of ocean beach at Humboldt Bay Humboldt Bay Comment
  UCD20403  Pseudognaphalium thermale Donald C. Hagar 1957-8-15 199 Humboldt 4.5 miles NE of Salyer, Cedar Creek Divide, 3500 ft. elev. 1066 Comment
  CAS-BOT-BC80109  Pseudotsuga menziesii Doris K. Kildale 1927-4-17 3092 Humboldt Briceland Bridge 1/2 mi. west of Garberville 114 Comment
  HSC32927  Psilocarphus oregonus Thomas W. Nelson, James Nelson 1973-5-28 970 Humboldt McKeown Ranch N of Dinsmore Comment
  CAS-BOT-BC361833  Psilocarphus oregonus Joseph P. Tracy 1938-7-5 16008 Humboldt Carlotta. By old Strong's District School House, 5 miles east of town 45 Comment
  CAS-BOT-BC361928  Psilocarphus tenellus C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  UC1223166  Psilocarphus tenellus Joseph P. Tracy 1950-6-29 18937 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1223162  Psilocarphus tenellus Joseph P. Tracy 1948-7-26 18075 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1223169  Psilocarphus tenellus Joseph P. Tracy 1950-6-8 18725 Humboldt 7 mi s Ferndale (near Mountain Glen Ranch); Summit of Bear River Ridge 609 Comment
  SEINET11793951  Psilocarphus tenellus var. tenellus J. P. Tracy 1942-1 17293 Humboldt 1 mi N of Redwood House, valley of South Yager Creek 610 Comment
  HSC100526  Psoralea physodes Carl C. Marshall Jun 1887 485 Humboldt Jewett's. Comment
  HSC1163  Pteridium aquilinum var. pubescens R. I. Bonn 1965-5-9 41 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC55030  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-7-31 11466 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC74314  Pteridium aquilinum var. pubescens M. A. Baker 1980-7-20 3050 Humboldt Near Bell Swamps 1463 Comment
  HSC41289  Pteridium aquilinum var. pubescens Brad Klipfel 1974-7-27 483 Humboldt Horse Mtn. in draw to the N of the towers Comment
  SBBG5361  Pyrola aphylla H. and M. Dearing 1939-6-28 3731 Humboldt near Dinsmore Comment
  SBBG59887  Pyrola asarifolia S. W. Hutchinson -Jun-1927 317 Humboldt Redwood Hwy 304 Comment
  HSC41292  Pyrola dentata Brad Klipfel 1974-7-27 491 Humboldt Horse Mtn. Comment
  UC314638  Pyrola picta Joseph P. Tracy 1926-6-6 7556 Humboldt near summit on road w from Hoopa to Bair's, Hoopa Mountain, Northern Coast Ranges Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  CAS-BOT-BC466041  Pyrola picta Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC54593  Quercus chrysolepis Overton, Butler 1979-7-24 9661 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  CAS-BOT-BC94311  Quercus garryana Doris K. Kildale 1926-8-22 2571 Humboldt Bald Hills 716 Comment
  CAS-BOT-BC94313  Quercus garryana Doris K. Kildale 1928-7-1 5666 Humboldt Klamath River at Bluff Creek Comment
  UC709423  Quercus garryana Joseph P. Tracy 1941-3-26 16845 Humboldt w of mouth of South Fork of Trinity River; South Fork of Trinity River 304 Comment
  UC915707  Quercus garryana W. L. Jepson 1903-6-17 47 Humboldt Briceland Comment
  SEINET12034478  Quercus garryana K. S. Erdman 1970-1 4764 Humboldt Schoolhouse Peak on Bald Hills Road about 16 mi S of Orick,T9N,R2E,Sec24 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
  HSC68613  Quercus kelloggii Jacqueline Greenleaf 1980-7-16 248 Humboldt Near Buck Mountain. 1250 Comment
  HSC8259  Quercus kelloggii D. E. Anderson 1961-9-30 1835 Humboldt Comment
  UC502987  Quercus kelloggii Joseph P. Tracy 1929-4-28 8542 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA20796  Quercus sadleriana Carl B. Wolf 1937-8-13 9261 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road toward Trinity Summit. 1677 Comment
  CAS-BOT-BC104331  Quercus sadleriana Clarence R. Quick 1960-6-27 60 -23 Humboldt Bear Gulch on road from Delta to Trinity Center Comment
  UCD47445  Quercus vacciniifolia John M. Tucker 1948-9-3 1851 Humboldt California, Humbolt Co.; Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine, Six Rivers National Forest; Comment
  HSC81826  Ranunculus alismifolius var. hartwegii Thomas W. Nelson 1979-7-11 5009 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC18121  Ranunculus aquatilis var. diffusus D. E. Anderson 1965-6-1 3782 Humboldt Rd. to Brush Mtn., 0.25 mi. from Hwy. 299 Comment
  UC184716  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1913-6-23 4276 Humboldt near summit of ridge between Van Duzen River and Mad River (in shallow but permanent pond); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  SEINET13716687  Ranunculus californicus Unknown 1916-4-30 4681 Humboldt Around Humboldt Bay Comment
  SEINET516271  Ranunculus californicus Vernon H. Oswald 1998-4-16 8912 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  HSC26334  Ranunculus californicus var. californicus Thomas W. Nelson 1971-4-12 376 Humboldt S spit of Humboldt Bay. Comment
  HSC45061  Ranunculus californicus var. californicus R. Sutherland 1978-4-23 6 .23478 Humboldt 718 Comment
  UC552284  Ranunculus flammula Joseph P. Tracy 1934-7-30 13499 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  RSA245287  Ranunculus hebecarpus Thomas W. Nelson 1971-5-7 429 Humboldt Beside Hwy 101, 1 miles S of Arcata. Comment
  JEPS79959  Ranunculus occidentalis Joseph P. Tracy 1932-7-18 10701 Humboldt head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  UC162860  Ranunculus occidentalis J. P. Tracy 1900-5-30 826 Humboldt Immediate vicinity of Eureka 0 Comment
  UC303000  Ranunculus occidentalis Joseph P. Tracy 1926-6-20 7618 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC1196217  Ranunculus occidentalis Joseph P. Tracy 1899-3-15 4 1/2 Humboldt Eureka; in garden Comment
  UC1196227  Ranunculus occidentalis Joseph P. Tracy 1921-4-24 5458 Humboldt slopes facing South Fork of Eel River; Northern Coast Ranges, Phillipsville 121 Comment
  RSA115000  Ranunculus occidentalis var. rattanii E. K. Balls, Lee W. Lenz 1955-5-16 20745 Humboldt 2.7 miles NW of Ettersburg along old Coast Road. 457 Comment
  UC162869  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1907-6-25 2574 Humboldt Elk River Valley Northern Coast Region, region about Humboldt Bay (along ditch) 0 Comment
  HSC32043  Ranunculus parviflorus J. D. Ackerman 1974-6-12 317 Humboldt 1 mi. N of Manila between Mad River Slough and sand dunes Comment
  HSC95591  Ranunculus repens Andrea Pickart 2002-3-31 24 Humboldt Arcata Marsh, Dan Hauser Marsh 0 Comment
  RSA554594  Ranunculus repens Walter Wisura 1993-5-9 4912 Humboldt Hwy 255 W of Arcata. Comment
  HSC18111  Ranunculus repens var. repens S. J. Roberts 1965-4-8 9 Humboldt 2 mi. E of Mad River Park Comment
  POM145526  Ranunculus sardous J. B. Feudge 1923-7-22 140 Humboldt At Fortuna. 15 Comment
  HSC100621  Ranunculus tenellus Carl C. Marshall May 1886 222 Humboldt Damp woods. Comment
  HSC81964  Ranunculus uncinatus var. parviflorus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4945 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  CDA35698  Rhamnus californica subsp. occidentalis T. R. Gallion 1960-7-7 Humboldt Weitchpec. 0 Comment
  HSC100477  Rhododendron californicum Carl C. Marshall May 1886 204 Humboldt Woods of Coast-range. Comment
  HSC27016  Rhododendron columbianum Brad Klipfel 1973-8-9 268 Humboldt Big Lagoon County Park Comment
  HSC33060  Rhododendron macrophyllum Thomas W. Nelson 1974-5-7 1239 Humboldt Old Kneeland Rd. Comment
  UC604646  Rhododendron occidentale Joseph P. Tracy 1938-6-16 15944 Humboldt Trinidad 60 Comment
  SEINET11996977  Rhododendron occidentale F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -296 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC7890  Rhododendron occidentale var. paludosum T. M. Mingo May 1965 Humboldt E of parking lot at College Cove, and along road E of College Cove Comment
  JEPS79963  Ribes binominatum Joseph P. Tracy 1932-7-13 10487 Humboldt near Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  UC1198951  Ribes inerme var. klamathense Joseph P. Tracy 1935-5-30 13915 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC56246  Ribes lacustre Walter Overton 1979-8-1 12353 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  JEPS79965  Ribes lacustre Joseph P. Tracy Jul 16 1930-Jul 19 1930 9078 Humboldt near McKay Camp (Northern Coast Ranges, South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC11588  Ribes lobbii Harley P. Chandler June 1901 1278 Humboldt Hupa Indian Reservation North Coast Ranges 1097 Comment
  UC1541330  Ribes lobbii J. P. Tracy July 1933 Humboldt Horse Mountain Comment
  CAS-BOT-BC173366  Ribes lobbii Volney Rattan 1882-6-1 s.n. Humboldt Coast Mts. North of San Francisco Bay Comment
  CAS-BOT-BC206032  Ribes menziesii Harold E. Parks 1933-4-1 4402 Humboldt McNeils Creek, vicinity of Trinidad Comment
  CAS-BOT-BC206045  Ribes menziesii L. R. Abrams 1916-7-11 6033 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  SEINET3825262 Image available Ribes nevadense Joseph P. Tracy 1932-7-18 10716 Humboldt Head of Brett Hole 1829 Comment
  JEPS49186  Ribes roezlii W. L. Jepson 1902-6-19 1889 Humboldt near Garberville; Ft. Seward Ranch Ridge (= Mail Ridge) 1066 Comment
  HSC71583  Ribes sanguineum Gail Newton 1980-6-16 188 Humboldt Near Onion Mtn. 1280 Comment
  UC1280968  Ribes sanguineum H. E. McMinn 1934-6-22 3713 Humboldt n Eureka; Sea Cliff Comment
  CAS-BOT-BC144680  Ribes sanguineum var. glutinosum L. B. Kildale 1930-9-9 10405 Humboldt Bald Mountain 914 Comment
  CAS-BOT-BC144682  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-7-22 4693 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  HSC95681  Ribes sanguineum var. glutinosum Steven Lee 2004-3-23 4 Humboldt Manila Dunes along Samoa Blvd., 200ft W of first powerline in parking area along Gun Club Rd. Comment
  UC1198910  Ribes sanguineum var. glutinosum Joseph P. Tracy 1928-4-22 8412 Humboldt Willow Creek Canyon Northern Coast Ranges 762 Comment
  CAS-BOT-BC173991  Ribes viscosissimum Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  JEPS79969 Image available Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  HSC84930  Romanzoffia californica R. N. Raynor 1935-4-8 Humboldt Fort Seward Comment
  HSC84002  Romanzoffia californica L. P. Janeway 1983-4-30 242 Humboldt At E Fork of USFS Campground 473 Comment
  UC198651  Rorippa curvisiliqua Joseph P. Tracy 1916-5-31 4693 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, along Eel River 60 Comment
  UC495640  Rorippa curvisiliqua Joseph P. Tracy 1932-10-30 10902 Humboldt Eel River on gravel bars Alton Fortuna; Northern Coast Region, Eel River 15 Comment
  UC183752  Rosa eglanteria Joseph P. Tracy 1912-8-4 3981 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC146476  Rosa gymnocarpa Alice Eastwood; John Thomas Howell 1937-6-23 4798 Humboldt Near Dinsmores Comment
  POM160283  Rosa gymnocarpa Joseph P. Tracy 1926-5-2 7443 Humboldt Willow Creek Canyon 610 Comment
  UC162329  Rosa gymnocarpa Joseph P. Tracy 1911-6-4 3218 Humboldt along river 5 mi from the coast; Northern Coast Region, Little River 121 Comment
  CAS-BOT-BC146844  Rosa nutkana Alice Eastwood; John Thomas Howell 1937-6-23 4825 Humboldt Near Bridgeville Comment
  HSC31560  Rosa nutkana Glenn McGourty 1974-6-1 77 Humboldt Comment
  OBI5837  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1.8 mi from Rohnerville on the road to Fortuna 30 Comment
  UC1281125  Rosa nutkana var. nutkana H. E. McMinn 1937-12-2 3711 Humboldt sea-cliff n Eureka Comment
  CAS-BOT-BC148382  Rubus leucodermis John Thomas Howell; Alice Eastwood 1937-6-22 4740 Humboldt Near Alder Point Comment
  CAS-BOT-BC148388  Rubus leucodermis L. R. Abrams 1918-6-16 7144 Humboldt Willow Creek Comment
  HSC69888  Rubus leucodermis Thomas W. Nelson, Jane P. Nelson 1977-7-30 3664 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  HSC98453  Rubus leucodermis Gail Newton 1980-8-10 2054 Humboldt Near Blake Mtn. 1707 Comment
  SEINET5320889  Rubus parviflorus A. T. Leiser 1980-7-9 Humboldt North of Orick; North of Orick, Highway 101 reroute, near Redwood Park Comment
  UC461843  Rubus spectabilis Chestnut and Drew July 1888 Humboldt near Arcata Comment
  CAS-BOT-BC156578  Rubus ulmifolius Joseph P. Tracy 1940-10-17 16762 Humboldt South Fork Station (near Dyerville) 48 Comment
  HSC63031  Rubus ursinus J. P. Smith, J. O. Sawyer 1973-5-12 6704 Humboldt 10.4 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC79483  Rubus ursinus Kenneth Clark 1980-3-24 547 Humboldt Shelter Cove, N fork of Deadman's Gulch 69 Comment
  JEPS47708  Rubus ursinus Lincoln Constance 1934-5-29 727 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UCD17621  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 043 Humboldt California. Humboldt County: 2.3 miles from Ettersburg on road from Briceland. Comment
  UCD17928  Rubus ursinus H. Olmo; T. S. Mallah 1953-4-3 53 60 Humboldt California. Humboldt County: 0.5 miles south of cemetary alongside highway in Rohnerville. East of airport. Comment
  UCD89721  Rubus ursinus Lindsay Clark 2008-6-23 KRC 6 Humboldt Nadelos Campground in King Range Conservation Area, 3.8 miles SE of Shelter Cove. 550 Comment
  CAS-BOT-BC421934  Rumex acetosella Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC17585  Rumex acetosella P. W. Shields 1955-6-10 Humboldt HSC campus Comment
  HSC100603  Rumex acetosella Carl C. Marshall May 1886 163 Humboldt Everywhere. Comment
  HSC17567  Rumex acetosella J. W. Johnson 1961-8-17 1039 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UC1225804  Rumex crispus Joseph P. Tracy 1946-7-7 17609 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCD101126  Rumex crispus Linda M. Barker 1976-6-22 1622 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC433703  Rumex occidentalis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  UC1225779  Rumex occidentalis Joseph P. Tracy 1948-9-12 18208 Humboldt Box Camp Trinity Summit 1463 Comment
  SEINET2444095  Rumex salicifolius C. Davidson, S. Christoph 2010-8-18 11780 Humboldt Trinidad State Beach. 3 Comment
  UC722995  Rumex salicifolius var. crassus C. L. Hitchcock and J. S. Martin 1939-7-14 5438 Humboldt Shelter Cove Comment
  UC1191279  Rumex salicifolius var. transitorius Malcolm A. Nobs and S. Galen Smith 1958-8-9 1237 Humboldt s end Blue Lake (town) (on Mad River); Mad River Comment
  UC55429 Image available Rumex salicifolius var. transitorius J. P. Tracy 1901-6-20 1157 Humboldt immediate vicinity Eureka; ; vicinity of Eureka, Humboldt Co. 0 Comment
  UC1100023  Ruppia maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1181 Humboldt ca 4 mi s Eureka (on Highway 101, near mouth of Elk River) Comment
  UC1115830  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1939-4-18 16212 Humboldt Garberville 152 Comment
  HSC95580  Salicornia depressa Andrea Pickart 2002-7-19 180 Humboldt Arcata Marsh at end of I St. 0 Comment
  UC673034  Salicornia virginica Joseph P. Tracy 1933-8-22 12987 Humboldt Mouth of Eel River 3 Comment
  CAS-BOT-BC132668  Salix A. T. Whittemore 1980-3-15 80 -002 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  SD37466  Salix Edith A. Purer 1932-7-27 4152 Humboldt Samoa, sand dunes Comment
  CAS-BOT-BC103807  Salix exigua W. R. Dudley 1899-6-21 s.n. Humboldt near bluff below junction of North and South Forks of Eel River Comment
  CAS-BOT-BC104095  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0971 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC107704  Salix hookeriana Harold E. Parks 1931-3-26 905 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC107707  Salix hookeriana Harold E. Parks 1931-8-1 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CHSC96697  Salix hookeriana Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC19967  Salix hookeriana J. R. Woodside 1963-2-17 45 Humboldt 1.25 mi. N of Fairhaven Comment
  HSC38176  Salix hookeriana Thomas W. Nelson 1976-3-5 3286 Humboldt Beside Martin's Slough just upstream from Eureka Muni Golf Course Comment
  HSC96367  Salix hookeriana Gordon Leppig 1999-4-15 1120 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  SBBG27480  Salix hookeriana H. E. Parks -Aug-1931 Humboldt Little River Lagoon Comment
  SBBG59110  Salix hookeriana H. E. Parks -Aug-1931 1053 Humboldt Little River Lagoon Comment
  UC1225773  Salix hookeriana Joseph P. Tracy 1948-4-4 17960 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC1225775  Salix hookeriana Joseph P. Tracy 1948-4-4 17957 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC1225924  Salix hookeriana Joseph P. Tracy 1947-8-31 17930 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC275525  Salix hookeriana Joseph P. Tracy 1924-9-21 6884 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC470425  Salix hookeriana Joseph P. Tracy 1931-10-3 9710 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC470426  Salix hookeriana Joseph P. Tracy 1931-11-15 9762 Humboldt Alton to Fortuna (on gravel bars); Northern Coast Region, Eel River 15 Comment
  UC470437  Salix hookeriana Joseph P. Tracy 1931-10-18 9738 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  UC470440  Salix hookeriana Joseph P. Tracy 1931-9-20 9685 Humboldt Trinidad Northern Coast Region 60 Comment
  UC512079  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1225 Humboldt 1 mi n Samoa (in pine barrens near coast) Comment
  UC512085  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1221 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC512086  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1221 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC512098  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1211 Humboldt 1 mi n Samoa (near coast) Comment
  CAS-BOT-BC125217  Salix lasiandra var. lasiandra W. J. Ferlatte 1967-6-13 1122 Humboldt North bank of Mad River 1/4 mi. east of hwy. 101 6 Comment
  CAS-BOT-BC128191  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1931-8-15 1078 Humboldt Blue Slide, Van Duzen River 100 Comment
  CAS-BOT-BC107591  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1317 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107624  Salix lasiolepis Joseph P. Tracy 1932-4-24 9803 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  HSC20002  Salix lasiolepis J. P. Tracy 1933-3-19 10931 Humboldt Blue Slide, Van Duzen River 91 Comment
  HSC20023  Salix lasiolepis J. P. Tracy 1933-2-26 10912 Humboldt Miranda, S Fork of Eel River 122 Comment
  JEPS12943  Salix lasiolepis Joseph P. Tracy 1930-6-15 8737 Humboldt near Bosworth's Larrabee Creek; Northern Coast Ranges 457 Comment
  JEPS12945  Salix lasiolepis Joseph P. Tracy 1929-10-20 8681 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 762 Comment
  JEPS12949  Salix lasiolepis Joseph P. Tracy 1932-3-6 9775 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS14780  Salix lasiolepis Joseph P. Tracy 1933-4-9 10964 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  POM160285  Salix lasiolepis Joseph P. Tracy 1926-2-28 7373 Humboldt Trinity River Valley, near the S Fork. 183 Comment
  UC1196624  Salix lasiolepis Joseph P. Tracy 1933-4-2 10962 Humboldt on Trinity Hwy e Redwood Creek; Northern Coast Ranges, Berry's Mt. 762 Comment
  UC469402  Salix lasiolepis Joseph P. Tracy 1931-9-27 9693 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UC469413  Salix lasiolepis Joseph P. Tracy 1927-4-10 7888 Humboldt Redwood Creek, at Berry's 274 Comment
  UC469423  Salix lasiolepis Joseph P. Tracy 1931-8-16 9613 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  UC470415  Salix lasiolepis Joseph P. Tracy 1931-10-3 9702 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC481807  Salix lasiolepis H. P. Bracelin 1931-5-1 269 Humboldt Sylvandale, between Miranda and Meyers South Fork of Eel River Comment
  UC490550  Salix lasiolepis Joseph P. Tracy 1932-4-24 9802 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC506396  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 Comment
  UC512033  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1326 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  CDA23002  Salix lasiolepis var. bigelovii Haggal 1994-6-7 s.n. Humboldt Arcata. 0 Comment
  SBBG57935  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  SD914  Salix melanopsis Harold E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  UC212983  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt mouth of Yager Creek; Northern Coast Region, Yager Creek 30 Comment
  UC470449  Salix melanopsis Joseph P. Tracy 1931-9-19 9682 Humboldt Van Duzen R. Alton; Northern Coast Region, Van Duzen R. 30 Comment
  UC481267  Salix melanopsis Harold E. Parks 1931-5-28 1025 Humboldt Little River Lagoon Comment
  UC490561  Salix melanopsis Joseph P. Tracy 1932-5-1 9876 Humboldt vicinity of R. Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  UC490562  Salix melanopsis Joseph P. Tracy 1932-5-1 9875 Humboldt vicinity of R. Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  UC519375  Salix melanopsis Joseph P. Tracy 1933-6-11 12551 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  UC519376  Salix melanopsis Joseph P. Tracy 1933-6-11 12552 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  UC519380  Salix melanopsis Joseph P. Tracy 1933-5-20 12261 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC212994  Salix purpurea Joseph P. Tracy 1920-2-29 5307 Humboldt Ryan's Slough Northern Coast Region, Humboldt Bay, Ryan's Slough 15 Comment
  CAS-BOT-BC129166  Salix scouleriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1219 Humboldt Near the coast, 1 mile north of Samoa, approximately at sea level. Comment
  HSC102104  Salix scouleriana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1007 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC20087  Salix scouleriana D. Sutherland, R. Spellenberg, A. Sylvester 1966-3-27 1359 Humboldt 1 mi. E of N Fork of the Mad River along Hwy. 299 Comment
  SBBG28833  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge, Van Duzen River 450 Comment
  SBBG57977  Salix scouleriana H. E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay Comment
  UC1173627  Salix scouleriana Joseph P. Tracy 1936-2-2 14766 Humboldt vicinity of Carlotta 30 Comment
  UC1196710  Salix scouleriana Joseph P. Tracy 1936-2-2 14768 Humboldt vicinity of Carlotta Carlotta 30 Comment
  UC481332  Salix scouleriana Harold E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 150 Comment
  UC5092  Salix scouleriana C. C. Marshall 1888-1 Humboldt Comment
  CAS-BOT-BC126275  Salix sessilifolia C. R. Ball; H. E. Parks; J. P. Tracy 1932-5-17 01337 Humboldt At Willow Creek, (Graham Ranch), near its junction with Trinity River 152 Comment
  RSA5688  Salix sessilifolia H. E. Parks 1931-5-14 961 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC128952  Salix sitchensis H. E. McMinn 1922-8-4 338 Humboldt Along Van Duzen River - 18 miles from Fortuna 6 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
  HSC90192  Salix sitchensis Jean Hanson 1980-3-8 6 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90380  Salix sitchensis Jean Hanson 1980-3-8 4 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96573  Salix sitchensis Gordon Leppig 2003-2-20 1808 Humboldt Eureka Slough, Cooper Gulch 5 Comment
  SBBG21982  Salix sitchensis R. F. Thorne 1957-9-2 Humboldt Eel River at Burlington State Park, just S of Weott Comment
  UC1196720  Salix sitchensis Joseph P. Tracy 1919-3-23 5122 Humboldt at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  JEPS12179  Salpichroa origanifolia Joseph P. Tracy 1933-8-22 12972 Humboldt Eureka 0 Comment
  CAS-BOT-BC238659  Sambucus nigra subsp. caerulea Doris K. Kildale 1926-9-9 2677 Humboldt Van Duzen River between Strong's [Strongs] Station & Bridgeville. Bar W. Ranch 158 Comment
  CAS-BOT-BC238660  Sambucus nigra subsp. caerulea Henry M. Pollard 1947-9-1 s.n. Humboldt Somes Peak, nera Orleans 1371 Comment
  SD42295  Sambucus nigra subsp. caerulea Carl B. Wolf 1937-9-8 9299 Humboldt Bull Creek, Petrolia Road, 6.0 miles west of Redwood Highway. 180 Comment
  CAS-BOT-BC235126  Sambucus racemosa var. racemosa C. B. Wolf 1930-10-26 1765 Humboldt 1 mi. so. of Trinidad 91 Comment
  UCD137263  Sambucus racemosa var. racemosa Joseph P. Tracy 1941-3-9 16803 Humboldt Camp Grant, near junction of South Fork and main Eel River. 60 Comment
  RSA245004  Sanguisorba minor B. D. Rogers, W. J. Ferlatte 1966-8-15 3122 Humboldt 1/2 mile E of Azalea State Park. Arcata. Comment
  HSC89551  Sanicula arctopoides Mike Roantree 1985-4-28 13 Humboldt N side of Trinidad Head, on coastal buff slope below trail Comment
  UC1073331  Sanicula arctopoides George B. Rossbach 1955-6-10 375 Humboldt between Fairhaven and (end of sandy point) off Eureka (near Humboldt Bay (lagoon) and lighthouse) Comment
  UC179934  Sanicula bipinnatifida Joseph P. Tracy 1914-5-30 4478 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  HSC100692  Sanicula bipinnatifida Carl C. Marshall Apr 1886 184 Humboldt Hill at Scottsville. Comment
  UC1197096  Sanicula crassicaulis Joseph P. Tracy 1925-3-29 6949 Humboldt Northern Coast Ranges, Miranda, South Fork Eel River South Fork Eel River; Northern Coast Ranges, Miranda, South Fork Eel River 91 Comment
  UC1197095  Sanicula graveolens Joseph P. Tracy 1926-5-2 7448 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC314594  Sanicula graveolens Joseph P. Tracy 1926-6-20 7648 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC100693  Sanicula menziesii Carl C. Marshall Jun 1887 477 Humboldt Harris. Comment
  UC642318  Sanicula tuberosa Joseph P. Tracy 1930-7-17 9011 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  SEINET13945256 Image available Sanicula tuberosa R. K. Gierisch, D. H. Esplin 1969-1 3531 Humboldt Six Rivers, Grouse Mtn, Sec 36, T5N, R4E. Alt 5200. NW 5% Comment
  SEINET13945259 Image available Sanicula tuberosa Thomas Nelson 1978-1 4095 Humboldt T2N, R5E, Sec 33, elev 2500 ft. Oak woodland on McKeown Ranch north of Dinsmore 762 Comment
  HSC36506  Sarcodes sanguinea Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1885 Humboldt Beside branch off FS Rd. 2S08 to Pine Mtn. Comment
  UC1239685  Satureja douglasii Joseph P. Tracy 1911-7-5 3332 Humboldt in woods along Willow Creek (tributary of Trinity River) (near its mouth); Northern Coast Ranges 152 Comment
  UC1198890  Saxifraga integrifolia Joseph P. Tracy 1922-4-30 6000 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC492227  Saxifraga mertensiana Joseph P. Tracy 1927-4-2 7884 Humboldt South Fork Eel River between Miranda and Redway; North Coast Ranges, South Fork Eel River 91 Comment
  HSC7445  Schoenoplectus americanus J. W. Johnson 1962-4-18 1271 Humboldt Between the Mad River mouth and the Hunt Farm, Samoa Peninsula Comment
  RSA246910  Schoenoplectus maritimus Robert F. Thorne, Percy C. Everett 1965-8-7 35213 Humboldt Samoa Peninsula: near sea level Comment
  CAS-BOT-BC111696  Schoenoplectus pungens var. badius D. E. Breedlove 1962-6-7 3053 Humboldt On extensive sand dunes 1.5 mi S of Samoa on peninsula on W side of Humboldt Bay. Comment
  UCSC000121  Scirpus paludosus H. L. Person 1932-5-11 s.n. Humboldt near Arcata - Eureka Comment
  CHSC2305  Scoliopus bigelovii V. Holt 1933-4-10 Humboldt Comment
  SEINET8501887  Scoliopus bigelovii R. R. Halse 2013-3-28 8766 Humboldt Along US Hwy. 101 ca. 2.2 miles S of Exit 671 to Pepperwood. 76 Comment
  CAS-BOT-BC517412  Scoliopus bigelovii Leo Shapovalov; C. Woodhull 1940-3-6 s.n. Humboldt Redwood Creek near Garberville in Humboldt Redwood State Park Comment
  HSC92543  Scoliopus bigelovii S. Morrissette, J. Williams, K. Kopper 1994-3-28 5 Humboldt On Lost Coast Trail, 2.25 mi. S of Bear Harbor Camp in J. Smeaton Chase Grove Comment
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Mar 9 2013
  UC582594  Scrophularia californica Joseph P. Tracy 1937-7-30 15565 Humboldt 6 mi se Arcata (Fickle Hill) 609 Comment
  UC154008  Scutellaria antirrhinoides Joseph P. Tracy 1908-6 2914 Humboldt nw slope of Buck Mountain; Northern Coast Ranges, Buck Mountain 1219 Comment
  HSC14402  Scutellaria californica H. E. Parks 1934-7-6 5118 Humboldt Iaqua-Yager Creek 762 Comment
  HSC35620  Scutellaria californica Thomas W. Nelson, B. Reinhardt 1975-7-30 2115 Humboldt E of Pilot Rock Comment
  CDA41033  Scutellaria siphocampyloides B. F. Kemp 1958-7-5 838 -58 Humboldt Knight Ranch, 4 miles north of Willow Creek. 0 Comment
  HSC14401  Scutellaria tuberosa D. E. Anderson 1965-5-8 3644 Humboldt About 2 mi. N of Willow Creek on the road running along E side of Trinity River Comment
  HSC57960  Sedum divergens G. L. Clifton, Griswold 1979-7-31 11660 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC79271  Sedum laxum subsp. flavidum D. K. Imper 1984-5-17 Humboldt Hogback Ridge W of FS6N06, 1.0 mi. N of junction with 5N01 1341 Comment
  HSC79339  Sedum laxum subsp. flavidum D. K. Imper 1984-5-16 Humboldt Six Rivers National Forest, in the vicinity of Horse Mtn. and Friday Ridge 1372 Comment
  UC667087  Sedum laxum subsp. heckneri Joseph P. Tracy 1927-5-15 8055 Humboldt near Hoopa Valley (Supply Creek, on barren rocky bluffs); Northern Coast Ranges, near Hoopa Valley 457 Comment
  HSC56937  Sedum obtusatum subsp. retusum G. L. Clifton, Butler 1979-7-23 9405 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC57121  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-25 9867 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC58130  Sedum obtusatum subsp. retusum Gilbert Muth 1979-8-1 12129 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC70725  Sedum radiatum Gail Newton 1980-7-14 1520 Humboldt Near Deadman Ridge 1097 Comment
  UC14456  Sedum radiatum Chesnut and Drew August, 1888 Humboldt Comment
  UC967446  Sedum radiatum Reid Moran 1951-6-13 3485 Humboldt w slope Buck Mountain; w slope Buck Mountain 853 Comment
  JEPS25690  Sedum spathulifolium P. C. Hutchison 1961-5-22 2020 Humboldt 5.4 mi ne of Klamath River bridge at Weitchpec (10 mi sw of Orleans, Hiway US299, w side of Klamath River on steep rocks above road); w side Klamath River, ne Weitchpec, sw Orleans Comment
  CAS-BOT-BC59121  Sedum spathulifolium subsp. pruinosum Alice Eastwood 1907-4-22 38 Humboldt Trinidad Comment
  CAS-BOT-BC62181  Selaginella oregana Doris K. Kildale 1925-12-19 1471 Humboldt Camp Bauer - near Korbel on Mad River Comment
  HSC48773  Senecio elegans Brad Klipfel 1975-5-22 621 Humboldt Near the city of Eureka airport S of Samoa Comment
  HSC101966  Senecio integerrimus var. major M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 861 Humboldt Patterson Meadows 1555 Comment
  BLMAR294  Senecio integerrimus var. major Jennifer Anthony-Wheeler 2002-4-30 294 Humboldt Clark Butte 670 Comment
  CAS-BOT-BC364016  Senecio integerrimus var. major Joseph P. Tracy 1928-5-6 8429 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1223148  Senecio integerrimus var. major Joseph P. Tracy 1951-5-26 19509 Humboldt opposite Willow Creek; Trinity River Comment
  RSA254747  Senecio jacobaea Thomas W. Nelson 1973-9-3 1132 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1223152  Senecio sylvaticus Joseph P. Tracy 1948-8-8 18087 Humboldt Iaqua School House Comment
  RSA0013853  Senecio vulgaris R. F. Thorne, Percy C. Everett 1965-8-8 35257 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  JEPS48274  Sequoia sempervirens Willis Corbitt 1931-4-8 Humboldt Scotia Comment
  UCD92873  Setaria viridis Joseph P. Tracy 1948-7-26 18078 Humboldt Trinity River Valley, at Willow Creek. Comment
  HSC19857  Sherardia arvensis E. W. Styskel 1963-5-19 44 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 290 Comment
  HSC96274  Sidalcea malachroides Gordon Leppig 2002-5-22 1710 Humboldt Van Duzen River Watershed, Redwood House Rd. Simpson Timber Co. 540 Comment
  JEPS67222  Sidalcea malachroides Joseph P. Tracy 1936-5-17 14812 Humboldt 6 mi se Arcata (Fickle Hill); se of Arcata 609 Comment
  UC1197964  Sidalcea malachroides Joseph P. Tracy 1937-6-20 15358 Humboldt s Ferndale (Wild Cat Ridge); s of Ferndale, Wild Cat Ridge 457 Comment
  UC1222506  Sidalcea malachroides Joseph P. Tracy 1950-6-8 18743 Humboldt one mi e Cape Mendocino (near top of Cape Ridge); e of Cape Mendocino, Cape Ridge 152 Comment
  UC175692  Sidalcea malachroides Joseph P. Tracy 1912-6-30 3716 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  UC18692  Sidalcea malachroides J. Burtt Davy 1899-6-13 5482 Humboldt Englewood Prairie North Coast Ranges, Englewood Prairie Comment
  UCR45396  Sidalcea malviflora D. K. Imper 1985-6-18 s.n. Humboldt Six Rivers National Forest, just south of junction of 10N01 and 10N03, south of Orleans. 854 Comment
  UC1197975  Sidalcea malviflora subsp. patula J. P. Tracy 1901-6-16 1148 Humboldt bluff at Bucksport (immediate vicinity of Eureka); vicinity of Eureka, Bluff at Buckport 0 Comment
  POM62156  Sidalcea oregana subsp. eximia Joseph P. Tracy 1917-9-1 4831 Humboldt Murphy Meadow, Bald Mountain 1067 Comment
  UC668143  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-8-22 15671 Humboldt 2 mi s Fields Landing (at Still Ranch); s of Fields Landing, at Still Ranch 6 Comment
  HSC104340  Sidalcea oregana subsp. eximia James Regan,, Humboldt Redwood Co., LLC 1 Humboldt Table Bluff 46 Comment
  UC161013  Silene antirrhina Joseph P. Tracy 1908-6 2801 Humboldt opposite Buck Mountain (Valley of Van Duzen River, in sand bar in river); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CDA38659  Silene californica B. Villegas/D. Juliano 2010-6-17 PDR# 1535021 -C Humboldt Alderpoint: Garberville - Alderpoint Rd. 0 Comment
  UC1137920  Silene californica H. S. Yates 1936-6-23 5874 Humboldt 4 mi nne Cathay Peak; Dyerville Quad., nne of Cathay Peak Comment
  RSA47141  Silene californica Doris K. Kildale 1925-3-29 617 Humboldt Alton hill. Comment
  HSC58347  Silene campanulata Overton, Butler 1979-8-2 12677 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS23250  Silene campanulata Joseph P. Tracy 1932-7-18 10704 Humboldt head of Brett Hole , head of Brett Hole (Trinity Summit) 1828 Comment
  UC668095  Silene campanulata Joseph P. Tracy 1937-7-29 15590 Humboldt w slope near top South Fork Mountain (at Hyampom Trail); , Hyampom Trail 1676 Comment
  UC668096  Silene campanulata Joseph P. Tracy 1937-7-29 15591 Humboldt w slope near top South Fork Mountain (at Hyampom Trail); , at Hyampom Trail 1676 Comment
  HSC32481  Silene campanulata subsp. glandulosa Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  RSA21442  Silene campanulata subsp. glandulosa C. B. Wolf 1937-8-12 9206 Humboldt North Coast Range, South Fork Mountain, 0.6 miles S of Blake Lookout. 1677 Comment
  HSC69692  Silene gallica R. Kalal 1980-6-8 13 Humboldt Pump Station #1, along the Mad River 14 Comment
  HSC45386  Silene gallica R. York 1978-5-20 170 Humboldt Along Bluff Creek Trail 610 Comment
  UC14434  Silene hookeri Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC23733  Silene laciniata subsp. californica Tim Baroni 1971-7-6 114 Humboldt 3 mi. S of Ferndale on Mattole Rd. Comment
  HSC4168  Silene laciniata subsp. californica C. B. Wolf 1927-8-29 1196 Humboldt 7 mi. S of Ferndale and Capetown, Bear River Ridge, Mt. Glen Comment
  UC668088  Silene lemmonii Joseph P. Tracy 1933-7-25 12870 Humboldt Grouse Mountain 1524 Comment
  RSA168876  Silene verecunda subsp. platyota Joseph P. Tracy 1951-6-26 19586 Humboldt North side of Board Camp Mountain, at extreme head of Redwood Creek. 1541 Comment
  UC1198793  Sisymbrium altissimum Joseph P. Tracy 1945-7-20 17515 Humboldt Eureka 30 Comment
  UC1198796  Sisymbrium officinale Joseph P. Tracy 1932-7-17 10658 Humboldt Trinity Summit at Corral Prairie Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  RSA18062  Sisyrinchium californicum Carl B. Wolf 1927-8-22 789 Humboldt Big Lagoon Comment
  RSA70587  Sisyrinchium californicum Frank W. Peirson 1923-7-11 3693 Humboldt 7 miles N of Arcata. Comment
  UC275554  Smilacina stellata Joseph P. Tracy 1924-9-7 Humboldt Table Bluff Northern Coast Ranges 182 Comment
  UC666970  Smilacina stellata Joseph P. Tracy 1939-4-25 16222 Humboldt Bull Creek; mouth 60 Comment
  HSC69581  Solanum americanum R. Kalal 1980-6-8 15 Humboldt E of Clam Beach along slough 18 Comment
  HSC41004  Solanum parishii J. O. Sawyer 1975-10-17 2715 Humboldt Near Box Camp on Big Hill Rd. to N Trinity Mtn. Comment
  HSC55669  Solanum parishii Overton, Butler 1979-7-25 9873 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  SEINET12274864  Solanum umbelliferum S. M. Tracy 1950-1 18851 Humboldt Briceland Comment
  UC604645  Solanum umbelliferum Joseph P. Tracy 1938-6-7 15855 Humboldt 5 mi se of Blue Lake (Canyon Creek); Canyon Creek 152 Comment
  RSA20813  Solidago canadensis var. gilvocanescens C. B. Wolf 1937-9-9 9311 Humboldt North Coast Range, Wildcat Ridge, 6.3 miles south of Ferndale. 305 Comment
  CAS-BOT-BC365440  Solidago elongata Carl B. Wolf 1927-8-2 809 Humboldt Along the hills near the ocean 1 mile south of Orick Comment
  HSC67892  Solidago elongata J. P. Smith 1973-5-26 6848 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC630465  Solidago elongata H. E. and S. T. Parks September 1937 24081 Humboldt Spruce Cove , Spruce Cove (Trinidad) 64 Comment
  CAS-BOT-BC365661  Solidago spathulata Greg de Nevers 2001-4-18 12255 Humboldt Lanphere-Christenson dunes, near Arcata 9 Comment
  RSA246920  Solidago spathulata R. F. Thorne, Percy C. Everett 1965-8-5 35164 Humboldt Samoa Dunes 3 Comment
  UC1199287  Soliva sessilis Joseph P. Tracy 1914-5-14 4430 Humboldt Fort Seward , Fort Seward (Northern Coast Ranges) 121 Comment
  UC582433  Sonchus asper Joseph P. Tracy 1932-5-22 10115 Humboldt between Miranda and Redway (South Fork Eel River); North Coast Ranges, South Fork Eel River 91 Comment
  HSC79494  Sonchus asper Kenneth Clark 1980-3-1 506 Humboldt Deadman's Gulch; lower alluvial terrace 11 Comment
  HSC56092  Sorbus scopulina G. L. Clifton, Griswold 1979-7-31 11786 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  RSA54125  Sparganium angustifolium subsp. emersum Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  HSC89261  Spartina alterniflora Anni Eicher 1989-4-20 366 Humboldt .5 mi. N of Samoa-Eureka bridge, E of State Hwy. 255, Humboldt Bay Comment
  OBI36625  Spergularia macrotheca David J. Keil 1983-7-2 17302 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard 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
  UC161002  Spergularia rubra Joseph P. Tracy 1906-6-17 2492 Humboldt Eureka Northern Coast Region (dry bed of Rick's Prairie pond) 0 Comment
  HSC4252  Spergularia rubra Lincoln Constance 1934-6-11 847 Humboldt Bull Creek region, trail along E bank of S Fork of Eel, N Dyerville Flat Comment
  HSC45059  Spergularia rubra R. Sutherland 1978-5-12 6 .12578 Humboldt Mckee Flat 288 Comment
  HSC96475  Spiraea douglasii Gordon Leppig 1997-6-19 457 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  POM274921  Spiraea douglasii Lyman D. Benson 1929-7-15 1822 Humboldt Fortuna Bog near the sea. Comment
  JEPS79990  Spiranthes porrifolia Joseph P. Tracy 1937-8-15 15667 Humboldt 15 mi e Orick (Bald Hills); Bald Hills 914 Comment
  RSA249514  Spiranthes romanzoffiana Robert F. Thorne, Percy C. Everett 1965-8-5 35154 Humboldt Samoa Dunes. 3 Comment
  UC13535  Spiranthes romanzoffiana Chesnut and Drew 1888-8-11 Humboldt Eureka Comment
  UC668218  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15954 Humboldt Cape Mendocino 152 Comment
  UCLA70839  Stachys ajugoides var. rigida Joseph P. Tracy 1937-6-20 15342 Humboldt Bear River 152 Comment
  UCLA71116  Stachys ajugoides var. rigida H. Lewis 1940-7-2 Humboldt Stone Lagoon Comment
  UCLA70877  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-12 16054 Humboldt Table Bluff Beach, lowlands at w foot of bluff Table Bluff 6 Comment
  UC538019  Stachys arvensis Lyle W. Smith 1934-11-14 Humboldt Arcata Comment
  HSC100512  Stachys bullata Carl C. Marshall May 1885 77 Humboldt Thickets, roadsides, etc. Comment
  RSA43679  Stachys rigida subsp. quercetorum H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  RSA168872  Stellaria crispa Joseph P. Tracy 1950-7-15 19042 Humboldt Moist ground under maple trees, Raccoon Creek, near mouth, 1 mile NE of Patterson s Ranch. Willow Creek vicinity. Comment
  HSC40427  Stellaria media Linda M. Barker 1976-2-22 1320 Humboldt 3 mi. W of Arcata Comment
  HSC75438  Stellaria media J. O. Sawyer 1980-7-18 3580 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC48033  Stellaria nitens Brad Klipfel 1974-5-27 407 Humboldt Horse Mtn. Comment
  UC161001  Stellaria nitens Joseph P. Tracy 1910-4-24 3126 Humboldt near Humboldt Bay (Ocean Beach at Humboldt Bay); Northern Coast Region Comment
  HSC40579  Stipa lemmonii Thomas W. Nelson, Jane P. Nelson 1976-7-1 2913 Humboldt Along NW side of Lassic Peak (Signal Peak). 1738 Comment
  HSC58417  Stipa lemmonii Griswold, Butler 1979-7-12 7219 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1541457  Streptanthus tortuosus H. E. Parks June 1951 Humboldt Rock Pile Knneland Comment
Read comments
Jun 21 2013
  UC673071  Streptanthus tortuosus Joseph P. Tracy 1940-7-7 16667 Humboldt rocky banks Grouse Mt. 1463 Comment
  UC1198799  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1938-6-13 15909 Humboldt on exposed rock ledge near Cold Springs; North Coast Ranges, Grouse Mountain 1432 Comment
  UC1198800  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1932-5-17 10089 Humboldt river bar Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC103966  Streptanthus tortuosus var. tortuosus A. Thoele, Sydney Carothers 1995-7-13 38 Humboldt Six Rivers National Forest; Potato Hill, NE side of Pilot Creek. Take SR1 to jct. with 3N14, walk NW 1.4 mi., then SW 1/3 mi. down ridge 1498 Comment
  UC562305  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC562306  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC269569  Symphoricarpos albus var. laevigatus Doris K. Kildale 1928-6-9 5085 Humboldt Eureka Comment
  JEPS12877  Symphoricarpos albus var. laevigatus W. L. Jepson 1932-7-28 16434 Humboldt Dyerville Comment
  CAS-BOT-BC269571  Symphoricarpos albus var. laevigatus Doris K. Kildale 1925-8-21 1310 Humboldt Yager Creek - near head of bald hills 914 Comment
  UC175193  Symphyotrichum subspicatum Joseph P. Tracy 1913-9-9 4396 Humboldt Big Lagoon 30 Comment
  UC673095  Symphyotrichum subspicatum Joseph P. Tracy 1940-9-26 16728 Humboldt Eureka 9 Comment
  UC168958  Synthyris reniformis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5749 Humboldt Trinity Summit; North Coast Ranges Comment
  RSA121874  Tanacetum camphoratum H. S. Yates 1936-6-16 5651 Humboldt 0.5 mile SW of Samoa. 6 Comment
  SBBG53001  Tanacetum vulgare J. D. Hobson -Jun-1966 Humboldt Loleta Comment
  UC581791  Tanacetum vulgare H. E. Parks and Joseph P. Tracy 1932-9-24 10809 Humboldt Prairie Creek 91 Comment
  HSC30348  Taraxacum officinale Dale R. Gradek 1974-5-15 35 Humboldt Adjacent to road across the playground in Redwood Park 61 Comment
  HSC34807  Taraxacum officinale Lon Hall 1975-4-4 293 Humboldt Arcata. In front of 1735 J St. 15 Comment
  UC667973  Taxus brevifolia Joseph P. Tracy 1936-9-20 15186 Humboldt along Capoe Creek; Humboldt State Redwood Park 91 Comment
  CAS-BOT-BC447401  Tellima grandiflora H. D. Ripley; R. C. Barneby 1945-6-16 6824 Humboldt North of Harris Comment
  HSC92244  Thermopsis macrophylla var. macrophylla Clare Golec 1995-7-6 Humboldt 701 Comment
  SBBG372  Thuja plicata J. W. Howe 1938-3-30 Humboldt Humboldt County [no specific locality] Comment
  UC1198257  Thuja plicata H. E. Parks and Joseph P. Tracy 1932-8-13 10346 Humboldt vicinity of Trinidad; Northern Coast Region 60 Comment
  UC1225754  Thysanocarpus curvipes Joseph P. Tracy 1948-5-31 18005 Humboldt Harris 762 Comment
  CAS-BOT-BC88322  Thysanocarpus curvipes John H. Thomas 1968-4-21 14355 Humboldt About 6.4 miles south of Weitchpec (as measured along the road). 170 Comment
  SBBG21852  Tiarella trifoliata var. unifoliata D. Myrick 1964-7-26 979 Humboldt Redwood Hwy 101 near Garberville 152 Comment
  CAS-BOT-BC436914  Tiarella trifoliata var. unifoliata C. C. Harris; S. K. Harris 1936-6-16 660 Humboldt Yager Road from Carlotta 152 Comment
  RSA24194  Tiarella trifoliata var. unifoliata Carl B. Wolf 1941-3-1 9979 Humboldt 1 mi. n.e. of Strongs Station (on the Van Duzen River) on rd. to Yager. 61 Comment
  CAS-BOT-BC447611  Tolmiea menziesii J. P. Tracy 1900-5-30 832 Humboldt Immediate vicinity of Eureka 152 Comment
  CAS-BOT-BC447608  Tolmiea menziesii Volney Rattan 1903-6-9 s.n. Humboldt Long Bar, Klamath Comment
  UC32566  Tonella tenella W. C. Blasdale 1896-6-8 Humboldt Graham's Comment
  HSC95682  Toxicodendron diversilobum Steven Lee 2004-4-25 25 Humboldt From Hwy. 299, take South Fork Rd. to County Rd. 341. River access trail is at the end of the road. Comment
  JEPS63913  Toxicodendron diversilobum W. L. Jepson 1932-8-1 16469 Humboldt Bull Creek 121 Comment
  JEPS63915  Toxicodendron diversilobum W. L. Jepson 1932-7-27 16429 Humboldt on rd. to Bull Creek Dyerville Comment
  HSC98556  Tragopogon dubius Cara Witte 2008-7-10 849 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile from National Forest 1. Under powerlines. 1237 Comment
  HSC98952  Tragopogon dubius Cara Witte 2008-7-28 955 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1592 Comment
  HSC32531  Trichostema lanceolatum Thomas W. Nelson 1973-9-3 1131 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA318958  Trifolium Patricia Wilder 1968-8-21 4373 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  BLMAR617  Trifolium albopurpureum Jennifer Wheeler 2011-5-20 617 Humboldt King range, Below Strawberry Rock in Mattole Dunes 7 Comment
  UC1197245  Trifolium albopurpureum var. dichotomum J. P. Tracy 1901-4-24 1039 Humboldt vicinity Eureka 0 Comment
  RSA739607  Trifolium arvense John Dittes, Josephine Guardino 2003-6-7 2003 -65 Humboldt 7.7 air SW of Orleans, 4.1 air miles NE of confluence of Trinity River and Klamath River., 0.3 air mile NW of confluence of Klamath River and Aikens Creek, along entrance road to Aikens Creek Campground. 107 Comment
  UC1223496  Trifolium bifidum var. bifidum Joseph P. Tracy 1935-5-25 13903 Humboldt betw forks of creek; Dobbyn Creek Comment
  UC160938  Trifolium bifidum var. decipiens J. P. Tracy 1900-5-28 812 Humboldt immediate vicinity Eureka 0 Comment
  UC1197050  Trifolium campestre Joseph P. Tracy 1905-7-1 2203 Humboldt immediate vicinity Eureka 0 Comment
  UC205597  Trifolium ciliolatum J. P. Tracy 1919-5-31 5148 Humboldt along Willow Creek (near mouth of Tributary of Trinity River); Northern Coast Ranges 152 Comment
  UC303191  Trifolium dubium Joseph P. Tracy 1925-5-17 6971 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  POM214888  Trifolium eriocephalum subsp. eriocephalum Joseph P. Tracy 1930-7-6 8835 Humboldt Kneeland Prairie. Comment
  UC495649  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-29 8821 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges Comment
  UC1223460  Trifolium fragiferum Joseph P. Tracy 1933-8-22 12986 Humboldt 1 mi w Loleta Comment
  CDA27949  Trifolium fucatum T. C. Fuller 1958-6-17 1720 Humboldt Petrolia, Lower Mattole. 0 Comment
  UC303192  Trifolium fucatum Joseph P. Tracy 1923-5-13 6203 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  HSC45170  Trifolium hirtum R. Sutherland 1978-5-16 9 .16578 Humboldt 402 Comment
  UC573520  Trifolium hybridum H. S. Yates 1936-6-18 5724 Humboldt 2 mi s of mouth of Littler River Eureka quad 3 Comment
  UCD111290  Trifolium longipes subsp. oreganum Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  HSC97567  Trifolium longipes subsp. shastense C. Witte 2007-5-18 44 Humboldt Near Bottleneck Spring. 1575 Comment
  SBBG3831  Trifolium macraei H. and M. Dearing 1939-5-25 3441 Humboldt near Samoa Comment
  UC162843  Trifolium macraei J. P. Tracy 1900-6-5 843 Humboldt vicinity Eureka (Bucksport) 0 Comment
  UC1197548  Trifolium microcephalum Joseph P. Tracy 1932-5-15 10056 Humboldt 5 mi above mouth of Smith River (at crossing of Roosevelt Hwy); Northern Coast Ranges 30 Comment
  UC1197552  Trifolium microcephalum Joseph P. Tracy 1927-6-18 8185 Humboldt betw Petrolia and the ocean Northern Coast Ranges 152 Comment
  HSC38068  Trifolium microdon Thomas W. Nelson, Jane P. Nelson 1976-5-30 2639 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CDA28005  Trifolium microdon E. C. Whitney 1978-5-25 Humboldt Art Tooby property, Harris. 0 Comment
  HSC45179  Trifolium microdon R. Sutherland 1978-5-21 1 .21578 Humboldt 433 Comment
  UC1103444  Trifolium oliganthum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3609 Humboldt near Hydesville; Northern Coast Region Comment
  RSA246676  Trifolium pratense Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-8 35259 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  HSC90638  Trifolium subterraneum Gail Newton 1982-5-2 2516 Humboldt Elk River Wildlife Area, Eureka Comment
  BLMAR745  Trifolium subterraneum Jennifer Wheeler 2015-5-18 745 Humboldt King range, strawberry rock grazing allotment down windy point 243 Comment
  HSC49247  Trifolium subterraneum R. Sutherland 1978-5-19 2 .19578 Humboldt Mckee Flat 296 Comment
  RSA259546  Trifolium subterraneum David Ferranti 1974-5-6 s.n. Humboldt 4360 1/2 Union Street Comment
  HSC2148  Trifolium variegatum Elrid H. Spinas 1948-6-16 55 Humboldt Horse Mtn. Comment
  HSC45133  Trifolium variegatum R. Sutherland 1978-4-23 22 .23478 Humboldt 732 Comment
  UCD109439  Trifolium variegatum W. A. Williams 1951-5-8 s.n. Humboldt location unknown. Comment
  UC1223543  Trifolium variegatum var. pauciflorum Joseph P. Tracy 1933-5-20 12241 Humboldt Petrolia Northern Coast Ranges, Mattole Valley Comment
  UC1197556  Trifolium variegatum var. variegatum J. P. Tracy 1909-5-2 2966 Humboldt Eureka vicinity 0 Comment
  UC1197562  Trifolium variegatum var. variegatum Joseph P. Tracy 1927-6-17 8283 Humboldt lower w foothills of Chaparral Mtn (Three Cabins); Northern Coast Ranges 457 Comment
  UC594251  Trifolium variegatum var. variegatum S. K. Harris, J. P. Tracy and H. S. Yates 1936-6-17 3426 Humboldt nw slopes nw slopes of Buck Mtn 822 Comment
  HSC49043  Trifolium willdenovii Patricia Shesgreen 1978-5-6 71 Humboldt Arthur W. Way Memorial Park campground. 100 yds. N of Mattole River. Comment
  HSC71470  Trifolium willdenovii J. P. Smith, J. O. Sawyer 1973-5-12 6674 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC103851  Trifolium wormskioldii G. D. Barbe, T. C. Fuller 1974-6-17 1851 Humboldt Crescent City; Pebble Beach Rd., south of Airport and Washington Blvd. Comment
  POM277677  Trifolium wormskioldii Lyman D. Benson 1928-7-10 438 Humboldt Clam Beach, Trinidad. Hills back of the ocean. 15 Comment
  UC1223372  Trifolium wormskioldii Joseph P. Tracy 1950-6-18 18767 Humboldt w Petrolia (hills betw town and ocean) Comment
  HSC14177  Triglochin maritima J. Mustain 1963-4-20 9 Humboldt Big Lagoon Park Comment
  HSC14169  Triglochin maritima D. E. Anderson 1961-9-3 1779 Humboldt Along Hwy. 101 Comment
  HSC15714  Trillium albidum Francis Winter 1960-5-7 Humboldt Hog Ranch Ridge, 8 mi. W of Hoopa Indian Reservation 915 Comment
  HSC15681  Trillium kurabayashii R. Spellenberg, D. Sutherland, A. Sylvester 1966-4-28 1383 Humboldt S side of Prairie Creek State Park Comment
  HSC15690  Trillium kurabayashii H. S. Logsdon 1964-4-11 8 Humboldt 4 mi. NE of Orick at Boye's Prairie Comment
  HSC12429  Trillium ovatum Gary J. Stebbins 1970-4-5 56 Humboldt Along rd. to Camp Bauer 1.1 mi. from Korbel Comment
  HSC15699  Trillium ovatum D. E. Anderson 1962-2-23 1923 Humboldt Grove E of HSC campus Comment
  HSC15700  Trillium ovatum Dan O'Brien 1962-4-21 Humboldt 0.5 mi. E of HSC campus Comment
  HSC34878  Trillium ovatum R. M. Sullivan 1975-4-9 5 Humboldt 40 yds. S of Fern Lake, HSU, Arcata Comment
  RSA24327  Trillium ovatum Carl B. Wolf 1941-2-28 9972 Humboldt 1.3 miles east of Redwood Creek Bridge. On the Blue Lake to Willow Creek Road. 244 Comment
  SBBG1084  Trillium ovatum H. and M. Dearing 1933-5-15 269 Humboldt Humboldt County [no specific locality] Comment
  CAS-BOT-BC521314  Trillium rivale Doris K. Kildale 1930-6-1 9739 Humboldt Klamath River at Bluff Creek 152 Comment
  CAS-BOT-BC521317  Trillium rivale L. B. Kildale 1930-6-1 9770 Humboldt Klamath River at Bluff Creek 152 Comment
  JEPS11786  Triodanis biflora Lincoln Constance 1934-6-4 818 Humboldt Look Prairie Bull Creek Region (and Bull Cr. road to Dyerville, South Fork Eel River); South Fork Eel River, , Look Prairie Comment
  SEINET10906254  Triodanis biflora Chandler CHANDLER 1415 Humboldt Klamath River 427 Comment
  JEPS11782  Triodanis perfoliata Milo S. Baker 1923-6-20 42 Humboldt headwaters of Yager Creek Comment
Read comments
Jan 2 2016
  HSC95575  Triphysaria eriantha subsp. eriantha Andrea Pickart 2002-3-29 17 Humboldt Samoa Dunes 0 Comment
  JEPS26158  Triphysaria eriantha subsp. eriantha Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3633 Humboldt Eureka Bucksport (Bucksport); Northern Coast Region, Eureka 0 Comment
  CDA41904  Triphysaria pusilla April A. Allard & Gregory D. O Connell 2005-6-1 8 Humboldt Coldspring Camp, 7.4 miles south of Hwy. 299 on NF1. Comment
  UC1222443  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1935-5-25 13851 Humboldt Fort Seward 106 Comment
  SACT002443  Trisetum canescens Herbert Copeland 1936-6-15 Humboldt At world's biggest tree in redwood forest near Dyerville Comment
  CAS-BOT-BC193515  Trisetum cernuum Joseph P. Tracy 1926-5-22 7502 Humboldt Prairie Creek 152 Comment
  HSC13420  Trisetum cernuum H. E. Parks, S. T. Parks Jun 1952 7551 Humboldt Spruce Cove, Trinidad 61 Comment
  UC15030  Triteleia bridgesii Mrs. M. H. Manning 1901-5-22 1 Humboldt Hupa Valley Comment
  HSC49994  Triteleia bridgesii M. A. Baker 1979-6-6 773 Humboldt N facing slope adjacent to rd. to Hospital Mtn. Comment
  UC1197724  Triteleia bridgesii Joseph P. Tracy 1925-6-7 7066 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  SD52191  Triteleia hyacinthina Frank Stephens 1894-5-14 10295 Humboldt Eel River. 320 Comment
  JEPS559  Triteleia hyacinthina Joseph P. Tracy 1937-7-19 15451 Humboldt nw slope Buck Mountain (lower foothills) 762 Comment
  UC1222691  Triteleia hyacinthina Joseph P. Tracy 1950-6-25 18896 Humboldt in meadow near Sproston Place (on the road to the Albee Place, 3 mi s Burr Valley); w side Buck Mountain 1158 Comment
  UC421775  Triteleia hyacinthina P. E. Goddard 1907-5-29 C. 108 Humboldt Van Duzen Comment
  UC15045  Triteleia peduncularis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5503 B Humboldt North Coast Ranges Comment
  OBI33131  Tsuga heterophylla David J. Keil 1983-7-2 17305 Humboldt Freeway exit from US 101 at Patrick's Point Comment
  SBBG11120  Tsuga heterophylla D. E. Breedlove 1961-7-4 669 Humboldt US Hwy 299, 4.1 mi E of the N fork of the Mad River 609 Comment
  UC615043  Tsuga heterophylla Beryl O. Schreiber 1934-6-5 1133 Humboldt 15 mi e of Blue Lake (road to Redding, wooded slope) Comment
  UC303180  Ulex europaeus Joseph P. Tracy 1923-11-24 6594 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  HSC40296  Umbellularia californica Lloyd Simpson 1977-4-17 253 Humboldt Warren Creek Rd. 0.25 mi. from West End Rd. 30 Comment
  CAS-BOT-BC199325  Vaccinium ovatum Ira L. Wiggins 1930-6-25 4613 Humboldt 2 miles north of Samoa Comment
  JEPS66687  Vaccinium ovatum Lincoln Constance 1934-5-31 758 Humboldt from w boundary of Park to Grasshopper Peak (Squaw Creek) rd. (Bull Creek flat, along Bull Creek, n side of creek); South Fork Eel River, Bull Creek Region Comment
  RSA46803  Vaccinium ovatum Doris K. Kildale 1927-5-15 3189 Humboldt Big Lagoon Flat. Comment
  RSA66951  Vaccinium ovatum E. K. Balls 1951-5-4 16421 Humboldt Nelson Grove to Robinson Grove, Hwy 101, 20 mi. north of Garberville. Comment
  UC1174843  Vaccinium ovatum P. C. Everett and E. K. Balls 1959-10-26 23974 Humboldt 4 mi se Honeydew (along Old Coast Road to Ettersburg) 457 Comment
  UC1193356  Vaccinium ovatum K. Cuff 1950-10-9 128 Humboldt 2.5 mi se Honeydew (Quad 28D1) 304 Comment
  UC22217  Vaccinium parvifolium Harley P. Chandler May 1901 1182 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC32645  Vaccinium parvifolium J. Burtt Davy 1899-6-18 5608 Humboldt Bald Mt., near Korbel; North Coast Ranges Comment
  SEINET12318510  Vahlodea atropurpurea K. S. Erdman 1970-1 4819 Humboldt Redwood National Park, summit of Gold Bluffs on park road about 2 mi W of US 101 at Berry Glen Comment
  SJSU2573  Valeriana sitchensis subsp. scouleri H. L. Buckalew 1962-7-2 Humboldt junction of Willow Cr & E Fork Willow Cr on Hwy 299 Comment
  HSC31137  Vancouveria hexandra J. O. Sawyer 1970-6-24 2266 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  HSC42007  Vancouveria hexandra Tom Duebendorfer 1977-5-15 45 Humboldt 1.6 mi. E of junction of Old State 299 and Maple Creek Rd. Comment
  CAS-BOT-BC76084  Vancouveria planipetala Doris K. Kildale 1926-6-27 2192 Humboldt Sweasey Lake, McClellan Mountain. 822 Comment
  CAS-BOT-BC76086  Vancouveria planipetala L. R. Abrams 1918-6-16 7189 Humboldt Willow Creek. Comment
  CAS-BOT-BC76093  Vancouveria planipetala M. S. Jussel 1931-5-2 113 Humboldt Garberville. Comment
  CAS-BOT-BC391321  Velezia rigida Harley P. Chandler 1901-6-1 1306 Humboldt North Coast Ranges. Hupa Indian Reservation 152 Comment
  UC154273  Verbena lasiostachys var. lasiostachys Harley P. Chandler June, 1901 1353 Humboldt Hupa Indian Reservation 152 Comment
  UC1239563  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1911-7-9 3479 Humboldt near mouth of Willow Creek; Trinity River Valley 152 Comment
  HSC55608  Veronica americana Walter Overton, Marvin Butler 1979-7-23 9490 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  RSA246672  Veronica americana Robert F. Thorne, Percy C. Everett 1965-8-9 35319 Humboldt Clam Beach County Park: along highway. 3 Comment
  RSA777352  Veronica americana Robert F. Thorne, Percy C. Everett 1965-8-9 35319 Humboldt Clam Beach County Park: along highway. 3 Comment
  JEPS26268  Veronica arvensis Joseph P. Tracy 1906-6-10 2482 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC40041  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1976-7-1 2893 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC56355  Vicia americana var. americana Griswold, Butler 1979-7-10 6327 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC1222601  Vicia americana var. americana Joseph P. Tracy 1946-5-19 17533 Humboldt Kneeland Prairie 762 Comment
  UC709401  Vicia americana var. americana Joseph P. Tracy 1939-7-9 16333 Humboldt Snow Camp 1402 Comment
  UC709402  Vicia americana var. americana Joseph P. Tracy 1939-4-29 16253 Humboldt Orleans 121 Comment
  JEPS76829  Vicia sativa subsp. nigra L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4807 Humboldt about 1.2 mi n Eureka bridge (Samoa peninsula) Comment
  HSC15278  Vicia sativa subsp. sativa Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC59115  Vicia sativa subsp. sativa Terry Roth 1979-5-29 93 Humboldt Arcata, corner of Alliance Rd. and Westwood Ct. Comment
  HSC15281  Vicia villosa David Adams 1960-7-15 Humboldt Near Fort Humboldt monument, Eureka 15 Comment
  HSC15282  Vicia villosa subsp. villosa D. E. Anderson 1962-5-10 2210 Humboldt Lanphere's Comment
  RSA24335  Viola adunca Carl B. Wolf 1941-2-25 9957 Humboldt Between Freshwater Lagoon and Stone Lagoon, 1/8 mile back from Ocean. 30 Comment
  UC668253  Viola adunca Joseph P. Tracy 1938-6-13 15913 Humboldt Grouse Mountain at Cold Springs; Grouse Mountain 1432 Comment
  UC1222521  Viola cuneata Joseph P. Tracy 1950-7-1 18946 Humboldt at summit near Clear Lake; Grouse Mountain 1524 Comment
  HSC100696  Viola glabella Carl C. Marshall Jun 1886 278 Humboldt Trinity Summit. Comment
  HSC48637  Viola glabella Mark Flippo 1978-5-21 81 Humboldt USFS Rd. 8N20 Comment
  HSC62757  Viola glabella J. M. DiTomaso 1979-4-21 902 Humboldt Trail from Parking Lot Elks Head at College Cove, Trinidad Comment
  HSC97173  Viola glabella Yun Chan, Renee Meyer, Sophary Yun 2007-6-13 11 Humboldt 1 mi. E of Hwy. 299 on F.S. Rd. NF1; Grouse Mtn. Meadow 1585 Comment
  UCR139069  Viola hallii E. Brower, S. Marubayashi, E. Perry 1997-5-10 054 Humboldt USFS Road 1, at mile marker 8 945 Comment
  HSC96539  Viola macloskeyi Gordon Leppig 1998-5-11 761 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  HSC21827  Viola ocellata J. F. Knezevich 1967-6-1 171 Humboldt 5 mi. E of Willow Creek on Hwy. 299 Comment
  RSA183614  Viola ocellata D. E. Anderson 1965-5-1 3557 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek. Comment
  RSA261422  Viola praemorsa subsp. praemorsa Suzanne May 1967-4-15 36 Humboldt Kneeland Road, 2 miles E of Bridgeville. 183 Comment
  SEINET10404788  Viola sarmentosa Unknown 1967-6-16 67 -12 Humboldt of Orick; James Irvine redwood grove, U.S. 101 Comment
  UC1222511  Viola sempervirens Joseph P. Tracy 1951-6-14 19420 Humboldt Snow Camp 1402 Comment
  UC183557  Viola sempervirens Joseph P. Tracy 1913-6-20 4221 Humboldt in valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UC668242  Viola sempervirens Joseph P. Tracy 1938-4-5 15706 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 457 Comment
  HSC70239  Viola sheltonii M. A. Baker 1980-6-8 1903 Humboldt Near Buck Flat. 1554 Comment
  UC183751  Viola sheltonii Joseph P. Tracy 1913-6-17 4187 Humboldt near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC668241  Viola sheltonii Joseph P. Tracy 1933-7-16 12769 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  CAS-BOT-BC203047  Vitis californica L. R. Abrams 1922-6-25 8220 Humboldt 6 mi north of Garberville Comment
  CAS-BOT-BC198761  Vulpia bromoides Harley P. Chandler 1901-5-1 1119 Humboldt Humboldt Bay 30 Comment
  HSC24254  Vulpia bromoides D. E. Anderson 1970-5-21 5078 Humboldt Scotia bluffs. Comment
  HSC69872  Vulpia bromoides Thomas W. Nelson 1978-5-29 4094 Humboldt On McKeown Ranch N of Dinsmore. 762 Comment
  UCD93467  Vulpia bromoides Harley P. Chandler 1901-5-1 1175 b Humboldt Humboldt County. 30 Comment
  HSC32482  Vulpia microstachys Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  RSA152486  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-7-5 15039 Humboldt Grouse Mountain. 1524 Comment
  RSA10073  Vulpia microstachys var. pauciflora Joseph P. Tracy 1925-5-17 6985 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  CAS-BOT-BC184731  Vulpia myuros subsp. megalura Joseph P. Tracy 1933-6-13 12598 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  UCD94898  Vulpia myuros var. hirsuta A. Murphy 1951-4-2 s.n. Humboldt along Highway 101, 0.75 mile south of Phillipsville. Comment
  CAS-BOT-BC128819  Whipplea modesta A. A. Heller 1937-6-8 15894 Humboldt In the forest at Bishop Pine Lodge, 3 miles north of Trinidad Comment
  SDSU911  Whipplea modesta D. F. Howe 1961-8-2 3121 Humboldt 7.7 Miles east of Orick on Bald Mtn. Road. 610 Comment
  HSC74461  Woodwardia fimbriata M. A. Baker 1980-5-18 1357 Humboldt Near Black Mtn. 792 Comment
  UCD136104  Woodwardia fimbriata K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  CAS-BOT-BC382923  Wyethia angustifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  JEPS32099  Wyethia angustifolia W. L. Jepson 1902-8-13 1955 Humboldt Green Point Ranch Redwood Creek Comment
  CHSC98382  Wyethia longicaulis Dean Wm. Taylor 2004-6-24 19132 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  HSC99010  Wyethia longicaulis Cara Witte 2008-7-1 778 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  UC1541467  Wyethia longicaulis H. E. and S. T. Parks May 1930 740 Humboldt Laribee Valley Comment
  HSC53967  Xerophyllum tenax Griswold, Butler 1979-7-11 7023 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  SEINET3356277 Image available Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp Comment
  UC13722  Xerophyllum tenax Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  CAS-BOT-BC527077  Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp 1066 Comment
  HSC73775  Zigadenus micranthus M. A. Baker 1980-6-7 1769 Humboldt Near Brush Mtn. 1128 Comment
  HSC98027  Zigadenus micranthus Cara Witte 2007-7-10 471 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38 1349 Comment
  HSC98861  Zigadenus micranthus Cara Witte 2007-5-29 128 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment



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