Search Results — 2000 specimen records retrieved (1361 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC54029  Abies concolor Griswold, Butler 1979-7-12 7209 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC54602  Abies concolor Overton, Butler 1979-7-24 9684 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC73072  Abies procera Gail Newton 1980-7-24 1786 Humboldt Near Somes Mtn. 1615 Comment
  BLMAR72  Abronia latifolia Jennifer Anthony-Wheeler 1994-5-18 72 Humboldt Samoa/manilla dunes, growing throughout dunes 6 Comment
  HSC37569  Abronia latifolia J. D. Ackerman 1975-6-10 456 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC38927  Abronia latifolia Linda M. Barker 1976-5-13 1490 Humboldt 3 mi. W of Arcata. Comment
  HSC16133  Abronia latifolia J. W. Johnson 1961-8-17 1050 Humboldt Arcata, ridge 8, Lanphere Farm, Samoa Peninsula Comment
  RSA0025082  Abronia latifolia I. L. Wiggins 1930-7-7 4672 Humboldt Sand dunes near Samoa. Comment
  SEINET5011048  Abronia latifolia Unknown 2002-8-19 83 Humboldt Sand beach N of rocky promontory and coast guard station. Comment
  POM89162  Acer circinatum Joseph P. Tracy 1920-8-1 5346 Humboldt Kneeland Prairie Lawrence Creek 457 Comment
  UC902127  Acer circinatum Joseph P. Tracy 1932-6-26 17294 Humboldt Valley of South Yager Creek 609 Comment
  UC1199016  Acer glabrum Joseph P. Tracy 1935-7-31 14394 Humboldt w side Devil's Backbone (barren rocky ridge connecting Trinity Summit with Salmon Summit); w side Devil's Backbone 1524 Comment
  CAS-BOT-BC28588  Achillea millefolium David D. Keck 1938-8-5 4765 Humboldt Clam Beach Comment
  HSC24376  Achillea millefolium J. O. Sawyer 1970-6-24 2217 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC37962  Achillea millefolium Peter Sorensen 1976-6-12 Humboldt Woodley Island Comment
  HSC4546  Achillea millefolium J. W. Johnson 1961-8-17 1061 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC57017  Achillea millefolium Overton, Butler 1979-7-24 9624 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC73585  Achillea millefolium Gail Newton 1980-7-14 1495 Humboldt Near Last Chance Ridge. 1219 Comment
  UC1222918  Achillea millefolium Joseph P. Tracy 1941-8-24 17044 Humboldt near, McKay Camp; South Fork Mountain 1676 Comment
  UC1222920  Achillea millefolium Joseph P. Tracy 1949-8-4 18418 Humboldt in serpentine area Mud Springs; Trinity Summit 1341 Comment
  UC472295  Achlys californica Mrs. M. H. Manning 1901-4 32 Humboldt near Hupa Comment
  SD42586  Achlys triphylla subsp. triphylla Carl B. Wolf 1937-6-19 8914 Humboldt North Coast Range, 7.2 miles above Bridgeville on grade to Dinsmores 455 Comment
  CAS-BOT-BC210658  Achnatherum lemmonii Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  UC1103142  Achnatherum lemmonii Joseph P. Tracy 1921-5-30 5486 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1152041  Achnatherum lemmonii Joseph P. Tracy 1951-6-26 19563 Humboldt halfway between Snow Camp and Twin Lakes (at Preston's old gate near road) Comment
  UC526752  Achnatherum lemmonii Joseph P. Tracy 1913-6-22 4260 Humboldt opposite Buck Mountain (Dinsmore's Ranch); valley of Van Duzen River 762 Comment
  HSC45633  Acmispon micranthus Diane L. Reed 1978-4-22 13 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC36791  Acmispon nevadensis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2050 Humboldt Beside FS Rd. 2S08 to Pine Mtn. Comment
  UC180208  Aconitum columbianum Joseph P. Tracy 1914-7-4 4526 Humboldt High Prairie on Bald Mt.; Northern Coast Ranges 1066 Comment
  HSC102596  Aconitum columbianum subsp. columbianum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1583 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  CHSC84721  Aconitum columbianum var. columbianum L. P. Janeway 2003-7-26 7921 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  HSC55084  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-31 11748 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC164785  Adenocaulon bicolor J. P. Tracy 1901-6-2 1119 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC29865  Adenocaulon bicolor Huron Herbert Smith 1911-6-20 3910 Humboldt unspecified Comment
  RSA12438  Adenocaulon bicolor Carl B. Wolf 1934-7-2 5855 Humboldt 2 mi. from Bald Mt. on rd. to Korbel. 762 Comment
  UC249775 Image available Adiantum X tracyi Joseph P. Tracy 1924-9-16 6868 Humboldt Eureka 30 Comment
  HSC44330  Adiantum aleuticum Brad Klipfel 1975-6-17 679 Humboldt Horse Mtn. Comment
  HSC54522  Adiantum aleuticum Overton, Butler 1979-7-23 9453 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  CAS-BOT-BC62298  Adiantum aleuticum Mrs. H. C. Cantelow 1935-6-13 935 Humboldt E. of Arcata Comment
  JEPS35154  Adiantum aleuticum Joseph P. Tracy 1925-11-25 7324 Humboldt near s fork Trinity River Valley; Northern Coast Ranges 182 Comment
  SEINET11708385  Adiantum aleuticum J. P. Tracy 1951-1 19622 Humboldt Eureka Comment
  SEINET11719536  Adiantum aleuticum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -309 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  OBI1088  Adiantum capillus-veneris R. J. Rodin 1938-6-30 s.n. Humboldt Richardson Grove State Park (Redwoods) Comment
  HSC31797  Aesculus californica Steve Selva, Roger Jensen 1974-8-27 80 Humboldt W of Humboldt-Trinity co. line on Hwy. 299 Comment
  HSC58330  Agastache urticifolia Overton, Butler 1979-8-2 12630 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC194431  Ageratina occidentalis P. E. Goddard Jun 1 1906-Jul 1 1906 638 Humboldt North Fork Eel River Comment
  POM289975  Agoseris apargioides var. maritima Lyman Benson 1929-7-15 s.n. Humboldt Clam Beach, Trinidad Comment
  HSC39937  Agoseris grandiflora Linda M. Barker 1976-7-5 1643 Humboldt 3 mi. W of Arcata. Comment
  HSC74276  Agoseris heterophylla M. A. Baker 1980-5-23 1390 Humboldt Near Buck Mtn. 1524 Comment
  SEINET6998444  Agoseris heterophylla Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC180186  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1914-7-5 4558 Humboldt High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC204708  Agrostis alba Joseph P. Tracy 1918-7-5 5018 Humboldt moist field Northern Coast Ranges, White Thorn Valley 304 Comment
  UC526887  Agrostis alba Joseph P. Tracy 1927-8-7 8326 Humboldt moist ground by Lack Pond; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC127522  Agrostis capillaris L. R. Abrams 1916-7-18 6139 Humboldt At Trinidad. Comment
  HSC98576  Agrostis exarata Cara Witte 2007-7-20 556 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  SEINET200945  Agrostis exarata Joseph P. Tracy 1912-7-21 3785 Humboldt Alton. Northern Coast Region. 30 Comment
  UCD52429  Agrostis exarata P. B. Kennedy 1923-8-3 s.n. Humboldt south of Scotia by road off highway. Comment
  HSC58751  Agrostis gigantea Overton, Butler 1979-7-24 9619 Humboldt Near Titlow Hill, close to the town of Willow Creek. 381 Comment
  CAS-BOT-BC139494  Agrostis hallii Doris K. Kildale 1927-6-25 3545 Humboldt Shelter Cove. Comment
  CAS-BOT-BC139499  Agrostis hallii Gordon H. True 1965-9-25 2656 Humboldt Klamath River 1.5 mile east of Orleans. 213 Comment
  HSC72675  Agrostis hallii J. P. Smith 1977-7-3 9257 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  UC511548  Agrostis hallii Ira L. Wiggins 1932-7-25 5896 Humboldt roadsides near McKinleyville Comment
  SBBG53087  Agrostis longiligula R. N. Philbrick, J. R. Haller 1976-6-25 7 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  UC36960  Agrostis microphylla Harley P. Chandler May, 1901 1253 Humboldt Redwood Belt North Coast Ranges, Redwood Belt 304 Comment
  SEINET10510269  Agrostis microphylla A. Arthur Heller 1923-7-8 Heller 13772 Humboldt Plentiful in a depression in a field in clay soil at Fortuna. Comment
  RSA126092  Agrostis stolonifera Joseph P. Tracy 1902-7-4 1758 Humboldt [Unspecified] Comment
  SBBG53062  Aira caryophyllea R. N. Philbrick, J. R. Haller 1976-6-25 2 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  UC1103302  Aira caryophyllea Joseph P. Tracy 1913-6-19 4205 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UC526677  Aira praecox Joseph P. Tracy 1932-5-16 10103 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UCR199659  Aira praecox R. F. Thorne, Percy C. Everett 1965-8-9 35308 Humboldt Northwestern; Outer North Coastal region, Big Lagoon 3 Comment
  JEPS56361  Allium bolanderi W. L. Jepson 1902-7-1 1978 Humboldt Three Creeks to Willow Creek Comment
  UC666928  Allium bolanderi Joseph P. Tracy 1932-6-14 10139 Humboldt mountain slopes w mouth of South Fork of Trinity River; South Fork of Trinity River 609 Comment
  HSC32884  Allium bolanderi var. bolanderi Thomas W. Nelson, James Nelson 1973-5-28 936 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC78654  Allium campanulatum D. K. Imper 1982-7-2 1490 Humboldt Near Connely Creek, N Fork 1493 Comment
  UC30070  Allium falcifolium Joseph Burtt Davy 1899-6-19 5659 Humboldt summit of ridge, Hoopa Mt. Hoopa Mt. Comment
  CAS-BOT-BC239  Allium grandisceptrum Mrs. W. W. Hutchinson 1924-6-1 s.n. (Herbarium A. Davidson no. 3595 ) Humboldt Garberville Comment
  UCD138544  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-10 5417 Humboldt along road to Red Mountain 0.5 mile west of junction with Swayback Ridge Road. 1371 Comment
  HSC2941  Allium triquetrum D. V. Sanford 1963-4-27 48 Humboldt Near old mill behind HSC campus Comment
  UC535705  Allium unifolium Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  RSA20861  Allium unifolium Carl B. Wolf 1937-8-11 8900 Humboldt Fleener Creek, 0.5 mile south of Centerville. 46 Comment
  UC666923  Allium unifolium Joseph P. Tracy 1927-6-8 8119 Humboldt on coast bluffs s Luffenholz Creek; Trinidad 30 Comment
  HSC76430  Allium validum Denis Kearns 1981-7-23 397 Humboldt Near Whiteys Peak. 1524 Comment
  HSC100400  Allocarya californica Carl C. Marshall 463 Humboldt Road between Harris and Garberville. Comment
  CAS-BOT-BC171313  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt Bald Mountain; In cold wet meadow near High Prairie 1066 Comment
  RSA20803  Alnus incana subsp. tenuifolia C. B. Wolf 1937-8-13 9268 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  CAS-BOT-BC169537  Alnus rubra Doris K. Kildale 1928-2-17 4273 Humboldt Patricks Point Comment
  CAS-BOT-BC169548  Alnus rubra H. E. Parks; S. T. Parks 1938-4-1 24126 Humboldt Spruce Cove, Trinidad 60 Comment
  HSC40971  Alnus rubra Linda M. Barker 1976-6-14 1602 Humboldt 3 mi. W of Arcata Comment
  HSC99493  Alnus rubra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 153 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  POM212075  Alnus rubra C. B. Wolf 1930-10-26 1967 Humboldt south edge of Big Lagoon, near the Redwood highway bridge. 3 Comment
  HSC73642  Alnus viridis subsp. sinuata M. A. Baker 1980-7-23 3193 Humboldt Near Orleans Mtn. 1859 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
  RSA167287  Alopecurus geniculatus Joseph P. Tracy 1951-6-21 19524 Humboldt back of Everett Beck House (formerly George Fray) bed of former Goose Lake, Hydesville. Comment
  UC187284  Alopecurus geniculatus Joseph P. Tracy 1911-6-25 3249 Humboldt Bucksport Northern Coast Region, region about Humboldt Bay, Bucksport 0 Comment
  JEPS79807  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  HSC2176  Ambrosia chamissonis H. E. Parks Aug 1941 24181 Humboldt Big Lagoon Comment
  HSC39521  Amelanchier alnifolia var. semiintegrifolia Thomas W. Nelson, James Nelson 1976-6-10 2664 Humboldt Ridge W of Senteney Rock 1555 Comment
  HSC74216  Amelanchier alnifolia var. semiintegrifolia M. A. Baker 1980-7-23 3173 Humboldt Near Orleans Mtn. 1859 Comment
  HSC56165  Amelanchier pallida G. L. Clifton, Griswold 1979-8-1 12050 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC505104  Ammannia robusta Joseph P. Tracy 1931-9-7 9659 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  CAS-BOT-BC137865  Ammophila arenaria David D. Keck; J. Clausen 1935-6-16 3387 Humboldt Mouth of Little River. Comment
  HSC8846  Ammophila arenaria D. J. Wilder 1965-4-26 16 Humboldt Mouth of Mad River Comment
  UC54750 Image available Amsinckia intermedia Mrs. M. H. Manning 1901-1 156 Humboldt near Hupa; ; near Hupa Comment
  UC525581  Amsinckia menziesii var. menziesii Joseph P. Tracy 1933-5-14 12175 Humboldt Trinity River Vallley at Willow Creek Trinity River Vallley; Northern Coast Ranges 152 Comment
  HSC89589  Anagallis arvensis M. Roantree 1985-5-24 54 Humboldt NW side of Trinidad Head, along trail Comment
  HSC96542  Anagallis arvensis Gordon Leppig 1997-8-13 646 Humboldt Big Lagoon County Park 3 Comment
  UC165847  Anaphalis margaritacea J. P. Tracy 1900-8-5 916 Humboldt immediate vicinity Eureka 0 Comment
  UC582521  Anaphalis margaritacea Joseph P. Tracy Jul 16 1930-Jul 19 1930 9060 Humboldt near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC4629  Anaphalis margaritacea Paul Shields 1955-9-22 Humboldt 12 miles NW of Arcata Comment
  HSC98105  Anemone deltoidea Cara Witte 2007-6-27 365 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/2 mile east of spring. 1561 Comment
  SD81298  Anemone deltoidea Darley F. Howe 1970-5-30 4060 Humboldt Forest east of Orick 395 Comment
  HSC100610  Anemone nemorosa Carl C. Marshall Jun 1885 30 Humboldt Redwoods (high up). Comment
  UCR39823  Anemone oregana Dave Bjornbak, M. Mayer, Steve Meredith 1985-5-10 33 Humboldt Horse Mtn. Rd., 8 mi. south of 299 1143 Comment
  HSC92104  Anemone oregana var. oregana S. Morrissette, J. Williams, K. Kopper 1994-5-6 44 Humboldt W side of USFS Rd. 6N36, 1.0mi N of intersection with Titlow Rd. 1341 Comment
  CAS-BOT-BC221417  Angelica hendersonii L. R. Abrams 1927-9-1 12065 Humboldt Stone Lagoon Comment
  HSC71418  Angelica hendersonii J. M. DiTomaso 1980-7-29 1806 Humboldt Elkshead, 2 mi N of Trinidad Comment
  CAS-BOT-BC211058  Angelica lucida W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  HSC71276  Angelica lucida J. M. DiTomaso 1980-6-8 1577 Humboldt Next to Hwy 101 between Arcata and Eureka, 1.5 mi. S of Indianola Rd. Comment
  UC126699  Angelica lucida John Matthiesen 1908-8-17 Humboldt Loleta Comment
  HSC48315  Angelica tomentosa Brad Klipfel 1973-8-3 303 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC642300  Angelica tomentosa Joseph P. Tracy 1939-8-16 16409 Humboldt Horse Mountain 1432 Comment
  SD42569  Angelica tomentosa var. hendersonii Carl B. Wolf 1937-8-11 2910 Humboldt 1/2 mile east of Alton 17 Comment
  CAS-BOT-BC271493  Anisocarpus madioides Doris K. Kildale; L. B. Kildale 1930-5-24 9552 Humboldt Hoopa Valley 152 Comment
  CAS-BOT-BC271495  Anisocarpus madioides Harley P. Chandler 1901-6-1 1313 Humboldt Hupa Indian Reservation 152 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
  UC1222880  Antennaria media Joseph P. Tracy 1950-8-8 19297 Humboldt Croghan Hole Trinity Summit 1676 Comment
  HSC38792  Anthemis cotula J. D. Ackerman 1975-8-31 655 Humboldt Lanphere Rd. near Mad River Slough, Arcata Bottoms 2 Comment
  HSC8940  Anthoxanthum odoratum R. Berg 1963-2-23 1 Humboldt Arcata, Fickle Hill area Comment
  RSA129295  Anthoxanthum odoratum H. S. Yates 1936-6-18 5737 Humboldt 2 miles N. of Big Lagoon. Rocky Pt. 30 Comment
  RSA129296  Anthoxanthum odoratum H. S. Yates 1936-6-23 5853 Humboldt 2 miles E. of mouth of Mad River. 30 Comment
  UC573791  Anthoxanthum odoratum H. S. Yates 1936-6-16 5684 Humboldt near Bayside 9 Comment
  UCD56274  Anthoxanthum odoratum J. W. McClellan 1924-5-26 s.n. Humboldt from Bridgeville. Comment
  CDA41213  Antirrhinum vexillo-calyculatum subsp. breweri E. C. Whitney 1960-9-1 s.n. Humboldt State Highway 96 near Bluff Creek. 0 Comment
  JEPS45613  Aphanes occidentalis W. L. Jepson 1921-8-7 9337 a Humboldt Stone Lagoon; Humboldt Coast Comment
  HSC56326  Aquilegia formosa var. truncata Overton, Butler 1979-8-2 12669 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC103965  Arabis breweri var. breweri A. Thoele, Sydney Carothers 1995-7-13 39 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
  HSC39042  Arabis breweri var. breweri Thomas W. Nelson, Jane P. Nelson 1976-5-31 2659 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  UC198606  Arabis subpinnatifida Joseph P. Tracy 1917-9-2 4838 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  RSA246789  Aralia californica R. F. Thorne, P. Everett 1965-8-5 35137 Humboldt Mt. Chamisal: below summit 579 Comment
  RSA1431  Aralia californica C. B. Wolf 1929-08 616 Humboldt 5 miles south of Weott Comment
  RSA21581  Aralia californica C. B. Wolf 1937-9-8 s.n. Humboldt North Coast Range, Bull Creek- Petrolia Road, 12 mi W of Redwood Highway 457 Comment
  CAS-BOT-BC128698  Arbutus menziesii Doris K. Kildale 1927-12-1 4210 Humboldt Klamath River at Orleans Comment
  RSA23646  Arbutus menziesii C. B. Wolf 1939-7-8 9523 Humboldt Wilder Ridge, 6/10 mi. north of Ettersburg on road to Honeydew. 244 Comment
  HSC100848  Arctostaphylos canescens J. P. Smith, J. O. Sawyer 2010-5-4 12813 Humboldt Along Bald Hills Road. 930 Comment
  SEINET11984830  Arctostaphylos canescens Unknown 1965-1 540 Humboldt on USAL Road, 23 mi N of junction with CA 1 & 2.7 mi S of junction of Four Corners Comment
  CAS-BOT-BC24092  Arctostaphylos canescens subsp. canescens L. R. Abrams 1918-6-15 7112 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC23741  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  CAS-BOT-BC23756  Arctostaphylos columbiana Alice Eastwood 1907-4-21 12 Humboldt Trinidad Comment
  CAS-BOT-BC23762  Arctostaphylos columbiana H. E. Parks 1931-12-1 4950 Humboldt Hobson's, Trinidad 60 Comment
  CAS-BOT-BC23812  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Bald Mt. between Korbel and Redwood Creek Comment
  JEPS38962  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12583 Humboldt near summit Hoopa Mountain (ridge 1 mi s of road from Hoopa to Bair's) 1219 Comment
  RSA622681  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27787 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  SBBG58415  Arctostaphylos columbiana H. E. Parks 1931-3-25 917 Humboldt near Patrick's Pt Comment
  UC585915  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UCD50695  Arctostaphylos columbiana Lincoln Constance 1934-5-24 638 Humboldt Bordering lower Look Prairie on E. side. 121 Comment
  UCD50772  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1170 Humboldt 21.4 miles east of U.S. Highway 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  UC1193023  Arctostaphylos glandulosa subsp. glandulosa R. E. Nelson 1950-7-26 146 Humboldt 1/2 mi nw Neafus Peak; Quad. 29D1 762 Comment
  RSA632810  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27777 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  HSC74675  Arctostaphylos manzanita Gail Newton 1981-5-16 2177 Humboldt Near Bug Creek. 1228 Comment
  UCD52072  Arctostaphylos manzanita Joseph P. Tracy 1940-7-14 16689 Humboldt Wilder Ridge (near Kings Peak). 762 Comment
  CAS-BOT-BC24372  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-6-25 3583 a Humboldt Near Ettesburg. Comment
  UC1173703  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1939-4-29 16263 Humboldt Orleans 121 Comment
  HSC7779  Arctostaphylos nevadensis D. E. Anderson 1965-6-1 3759 Humboldt Horse Mountain, S facing slope 1220 Comment
  RSA24337  Arctostaphylos nevadensis C. B. Wolf 1941-2-26 4040 Humboldt 6 2/10 mi. W. of Klamath River Bridge on Weitchpec to Orick Rd. 610 Comment
  CAS-BOT-BC40062  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge 1066 Comment
  UC1198668  Arctostaphylos patula Joseph P. Tracy 1942-6-23 17263 Humboldt open ridges near Water-dog Lakes; Trinity Summit 1828 Comment
  UC1198669  Arctostaphylos patula Joseph P. Tracy 1939-8-16 16407 Humboldt Horse Mountain 1402 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
  CAS-BOT-BC64625  Armeria maritima subsp. californica W. R. Dudley 1899-6-1 723 Humboldt Eureka Peninsula. Comment
  HSC59096  Armeria maritima subsp. californica Clark L. Miller 1979-5-24 2150 Humboldt Samoa Dunes off Samoa Blvd. Comment
  HSC59197  Armeria maritima subsp. californica Terry Roth 1979-5-24 78 Humboldt Samoa Dunes near the U.S. Coast Guard Station 5 Comment
  HSC79385  Armeria maritima subsp. californica Kenneth Clark 1981-5-24 1391 Humboldt Abalone Pt. 15 Comment
  SEINET7253518 Image available Armeria maritima subsp. californica Joseph P. Tracy 1927-1 8115 Humboldt Trinidad 3 Comment
  CAS-BOT-BC82100  Arnica cernua Harley P. Chandler 1901-6-1 1298 Humboldt [Hupa] Hoopa Indian Reservation 609 Comment
  CAS-BOT-BC82103  Arnica cernua Thomas Nelson 1974-5-30 1345 Humboldt along the Hoopa-Redwood Valley Road Comment
  RSA256573  Arnica cernua D. E. Anderson 1972-6-20 5739 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  BLMAR524  Arnica discoidea Jennifer Wheeler 2009-6-23 524 Humboldt King range, On King Peak road Comment
  JEPS20983  Arnica discoidea Joseph P. Tracy 1935-7-23 14154 Humboldt Brett Hole (lower end) Trinity Summit 1584 Comment
  SEINET6999602  Arnica discoidea J. P. Tracy 1911-7-11 3513 Humboldt Hoopa Valley, hills near Supply Creek. Comment
  HSC44152  Arnica spathulata Thomas W. Nelson, Jane P. Nelson 1977-7-1 3555 Humboldt Along N side of ridge between Bear and Blanket Creeks. 1494 Comment
  HSC8988  Arrhenatherum elatius J. A. Waller 1965-5-2 29 Humboldt Along Hwy. 96 near Willow Creek Comment
  CAS-BOT-BC90867  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  SEINET198593  Artemisia pycnocephala H. E. Parks, S. T. Parks Jun 1952 24495 Humboldt Samoa Comment
  IRVC497  Artemisia pycnocephala John Johnson 1961-9-4 1098 Humboldt Arcata; Christenson Farm. Comment
  UC665564  Artemisia suksdorfii H. E. Parks 1940-5-1 24178 Humboldt Little River Comment
  HSC93258  Arum palaestinum Gordon Leppig 1998-5-8 755 Humboldt Arcata Marsh and Wildlife Sanctuary, Butchers Slough, 50 m W of Interpretive Center Comment
  UC198579  Aruncus dioicus var. pubescens Joseph P. Tracy 1916-6-25 4749 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  HSC98560  Asarum caudatum Cara Witte 2008-6-13 727 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  UC302986  Asarum caudatum Joseph P. Tracy 1926-5-22 7512 Humboldt Prairie Creek 152 Comment
  UCR179286  Asarum caudatum R. G. Swinney 1968-3-28 232 Humboldt East of Humboldt State College, Arcata 152 Comment
  CAS-BOT-BC400536  Asarum caudatum H. E. Parks 1931-3-24 0918 Humboldt Near Orick Comment
  SD58206  Asarum caudatum Lincoln Constance 1934-6-2 774 Humboldt Bull Creek Region, South Fork Eeel River, Bull Creek road to mouth of Bull Creek and up Bull Creek Comment
  HSC65474  Asarum hartwegii Gail Newton 1980-6-24 560 Humboldt Near Ladder Rock 1570 Comment
  HSC99498  Asarum hartwegii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 158 Humboldt Near North Trinity Mtn, along Forest Service Rd 10NO2, between two forks of Domingo Creek 1433 Comment
  UC154170  Asclepias cordifolia Harley P. Chandler June, 1901 1347 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC1222672  Asclepias cordifolia Joseph P. Tracy 1950-7-15 19043 Humboldt 1 mi n of mouth Willow Creek (e side of river); Trinity River Comment
  HSC98022  Asclepias speciosa Cara Witte 2007-7-3 406 Humboldt White Oak Opening. 1242 Comment
  CAS-BOT-BC478833  Asparagus officinalis Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson's Creek, Orleans region Comment
  HSC1050  Aspidotis densa Francis Winter 1960-4-24 Humboldt 8 mi. NE of Redwood Creek Ranch 610 Comment
  HSC44354  Aspidotis densa Brad Klipfel 1974-5-8 317 Humboldt Horse Mountain Comment
  HSC67193  Aspidotis densa Thomas W. Nelson 1980-6-10 5418 Humboldt Along road to Red Mtn., 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  UCD137283  Aspidotis densa Frederic Hrusa 1993-6-17 11223 Humboldt Red mountain, at entrance gate to Red Mt. 900 Comment
  CDA10236  Aster chilensis E. C. Whitney 1963-9-17 Humboldt Lamphere Road, Arcata. 0 Comment
  SEINET201024  Aster engelmannii J. P. Tracy 1919-9-18 5227 Humboldt Trinity Summit 1890 Comment
  CAS-BOT-BC193142  Astragalus rattanii var. rattanii Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  UC1222421  Astragalus rattanii var. rattanii Joseph P. Tracy 1948-6-13 18040 Humboldt 7 mi nw Blocksburg (half way between Bridgeville and Blocksburg, along Larrabee Creek); Larrabee Creek, halfway betw Bridgeville and Blocksburg Comment
  UC33516  Astragalus rattanii var. rattanii Chesnut and Drew July 1888 Humboldt Mad River Comment
  OBI5364  Athyrium filix-femina Robert J. Rodin 1969-8-16 8367 Humboldt Near Carlotta in forest where second growth redwoods had just been cut, near Van Duzen River. Comment
  CAS-BOT-BC69521  Athyrium filix-femina subsp. cyclosorum L. R. Abrams 1916-7-11 6053 Humboldt At mouth of Grizzly Creek on Van Duzon River. Comment
  RSA333466  Athyrium filix-femina subsp. cyclosorum Dave Kelly, W. Wisura 1985-7-30 4069 Humboldt 4.7 miles south of Orleans, along highway 96 Comment
  JEPS70200  Athyrium filix-femina var. cyclosorum Robert J. Rodin 1969-8-18 8384 Humboldt along Redwood Creek near Orick Comment
  JEPS53225  Athysanus pusillus W. L. Jepson 1902-6-20 1901 Humboldt Fort Seward Ranch Ridge, (=Mail Ridge), expedition from Ukiah to the Hupa Indian Reservation Fort Seward Ranch Ridge 1219 Comment
  CAS-BOT-BC170275  Atriplex confertifolia Dr. A. Kellogg; W. G. W. Harford 1868-1-1 862 Humboldt Humboldt Comment
  HSC9019  Avena fatua S. R. Johnson 1965-5-2 53 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC9024  Avena fatua W. F. Nickel 1965-5-16 Humboldt N Arcata next to the Humboldt Motor Hotel. Comment
  UC526701  Avena fatua Joseph P. Tracy 1933-5-20 12229 Humboldt 3 mi s point of cape (sw slopes fronting ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  JEPS32397  Baccharis glutinosa W. L. Jepson 1936-8-11 17867 Humboldt spot on mountainside, Philipsville South Fork Eel River Comment
  CAS-BOT-BC98032  Baccharis pilularis Doris K. Kildale 1926-11-27 2845 Humboldt Alton Bluff 30 Comment
  RSA254757  Baccharis pilularis Thomas W. Nelson 1971-11-11 601 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  RSA167192  Balsamorhiza deltoidea Joseph P. Tracy 1950-6-15 18792 Humboldt Mail Ridge, north of Harris 7 miles Comment
  POM52329  Balsamorhiza hookeri var. lagocephala Geo. D. Butler 1910-4-9 1157 Humboldt Dry hill near Eureka Comment
Read comments
Dec 1 2014
  RSA273344  Barbarea orthoceras M. A. Baker 1977-4-23 174 .5 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  HSC34654  Bellis perennis A. M. Montalvo 1975-4-10 206 Humboldt Vacant lot bordering HSU campus between Union St. and A St. 15 Comment
  CAS-BOT-BC128915  Berberis aquifolium Alice Eastwood; John Thomas Howell 1937-6-23 4794 Humboldt Near Dinsmore's Comment
  CAS-BOT-BC75679  Berberis nervosa Doris K. Kildale 1928-5-27 5946 Humboldt Kneeland Prairie. 853 Comment
  RSA246849  Berberis pinnata R. F. Thorne, P. Everett 1965-8-5 35141 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  OBI16932  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Crk. Below Orleans 8 mi Comment
  CAS-BOT-BC66277  Blechnum spicant Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC91603  Blechnum spicant E. Mackey 1986-10-24 Humboldt Patrick's Point State Park, by trail to Agate Beach Comment
  CAS-BOT-BC15788  Boechera acutina Joseph Prince Tracy 1932-7-11 10396 Humboldt Klamath Mountains. At Corral Prairie. 1524 Comment
  UC1222663  Boechera pauciflora Joseph P. Tracy 1950-6-15 18794 Humboldt 7 mi n Harris (Jenk's Ranch); Mail Ridge Comment
  HSC100574  Boisduvalia densiflora Carl C. Marshall Jul 1887 398 Humboldt Spruce Grove. Comment
  POM256471  Boisduvalia glabella Joseph P. Tracy 1938-7-5 16010 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 Comment
  UC1239783  Botrychium multifidum Joseph P. Tracy 1912-7-22 3793 Humboldt Table Bluff Northern Coast Ranges 91 Comment
  UC197916  Botrychium multifidum Joseph P. Tracy 1906-11-4 2551 Humboldt Eureka Northern Coast Region 0 Comment
  HSC56319  Boykinia major Overton, Butler 1979-8-2 12658 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC99464  Boykinia major K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 118 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA245258  Boykinia occidentalis Norman Dennis 1965-6-3 145 Humboldt Big Lagoon County Park SW corner of Big Lagoon. Comment
  UC726691  Boykinia occidentalis A. A. Heller 1937-6-12 15890 Humboldt 3 mi n Trinidad (at Bishop Pine Lodge); n of Trinidad Comment
  UC1199317  Brickellia californica Joseph P. Tracy 1922-10-8 6119 Humboldt near Blue Lake (Mad River gravel bar, Northern Coast Ranges); Northern Coast Ranges, Mad River 15 Comment
  UC581795  Brickellia californica Joseph P. Tracy 1931-10-18 9736 Humboldt Camp Grant, along Eel River, 2-5 mi e of the South Fork Eel River 45 Comment
  JEPS18754  Brickellia greenei Joseph P. Tracy 1935-7-30 14361 Humboldt Salmon Summit 1767 Comment
  CAS-BOT-BC145430  Briza maxima P. B. Kennedy 1929-6-13 s.n. Humboldt Etterburg. Comment
  HSC8563  Briza maxima G. L. Martin 1966-5-10 41 Humboldt Mckinleyville, Mad River beach area in back of Ocean Dr., E side of river Comment
  JEPS93974  Briza maxima Vernon Oswald 1998-4-16 8911 Humboldt Clam Beach County Park on Hwy. 101 between Arcata and Trinidad (near parking lot); Clam Beach Co. Park 6 Comment
  UC526899  Briza maxima Joseph P. Tracy 1930-7-6 8848 Humboldt Iaqua North Coast Ranges 762 Comment
  HSC45594  Briza minor Diane L. Reed 1978-5-7 60 Humboldt 2 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  HSC79436  Briza minor Kenneth Clark 1980-6-14 664 Humboldt Shelter Cove, lower alluvial terrace of Dead Man's Gulch 30 Comment
  HSC99871  Briza minor Glenn W. K. Shelton 2010-7-7 9 Humboldt 6 mi. S of Kneeland Airport along Kneeland Rd. 658 Comment
  HSC35816  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1920 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  POM160834  Brodiaea stellaris Joseph P. Tracy 1923-7-4 6526 Humboldt Valley of South Yager Creek. 762 Comment
  RSA168838  Brodiaea stellaris Joseph P. Tracy 1950-6-25 18903 Humboldt McClellen Mtn, just E of McClellen Rock, Burr Valley. 762 Comment
  SEINET12053853  Brodiaea stellaris J. P. Tracy 1950-1 18903 Humboldt McClellen Mt., just E of McClellen Rock, Burr Valley 762 Comment
  HSC45110  Bromus diandrus R. Sutherland 1978-5-13 4 .13578 Humboldt Mattole River. 282 Comment
  UC526925  Bromus hordeaceus Joseph P. Tracy 1933-6-25 12622 Humboldt 2 to 5 mi e of South Fork Eel River (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  RSA44464  Bromus laevipes Henry M. Pollard 1948-7-19 s.n. Humboldt Near Van Fleet ranch Comment
  UC249789  Bromus laevipes Joseph P. Tracy 1923-6-27 6378 Humboldt near the South Fork (Northern Coast Ranges, Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC74126  Bromus madritensis subsp. madritensis R. York 1980-5-23 628 Humboldt Near Buck Mtn. 1524 Comment
  HSC99102  Bromus sterilis Cara Witte 2007-5-23 90 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  CAS-BOT-BC185521  Bromus vulgaris Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain Trail. 1371 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
  UC176583  Bromus vulgaris J. P. Tracy 1900-5-28 807 Humboldt immediate vicinity of Eureka 0 Comment
  RSA46798  Cacaliopsis nardosmia Doris K. Kildale 1926-4-18 1776 Humboldt McClellan Mountain. Comment
  POM312414  Cakile edentula Malcolm A. Nobs, Walter Wisura 1949-8-11 1337 Humboldt Eastern shore of Stone Lagoon. Comment
  CAS-BOT-BC36855  Cakile edentula var. edentula Alice Eastwood; John Thomas Howell 1934-4-11 1323 Humboldt Trinidad. Comment
  HSC103983  Cakile maritima E. R. Fyer 2015-4-26 23 Humboldt Along New Navy Base Road 9 Comment
  HSC6611  Cakile maritima Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  UC1198279  Cakile maritima Joseph P. Tracy 1946-1-13 17517 Humboldt Centerville Beach 3 Comment
  UCD114941  Cakile maritima Linda M. Barker 1976-6-22 1628 Humboldt 3 miles west of Arcata. Comment
  HSC79543  Cakile maritima Kenneth Clark 1981-5-24 1395 Humboldt 300 yards W of Deadman's Gulch 3 Comment
  HSC95579  Calandrinia ciliata Andrea Pickart 2002-3-14 6 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  HSC35505  Callitriche heterophylla G. W. Clason 1962-4-25 Humboldt Hwy. 101 between Arcata and Eureka. Comment
  UC275486  Callitriche marginata Joseph P. Tracy 1925-3-29 6948 Humboldt Miranda; Northern Coast Ranges 121 Comment
  HSC59492  Callitriche stagnalis M. A. Ericksen 1979-4-22 216 Humboldt 1 mi. W of intersection of Mad River Rd. and Iverson, Arcata bottoms, city of Arcata Comment
  HSC70750  Calocedrus decurrens R. York 1980-5-17 533 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC80383  Calocedrus decurrens H. E. McMinn 1922-7-1 278 Humboldt 1 mile east of Dinsmore Comment
  UC180215  Calochortus amabilis Joseph P. Tracy 1914-5-14 4422 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC667124  Calochortus amabilis Joseph P. Tracy 1927-5-30 8090 Humboldt Garberville 152 Comment
  UCR84791  Calochortus amabilis Kathy Harper 1992-5-14 s.n. Humboldt S-facing road embankment on Hwy 254 (parallel to Hwy 101), where road follows S fork of Eel River, c. 1 mi north of Phillipsville 91 Comment
  CAS-BOT-BC488457  Calochortus amabilis L. R. Abrams 1916-7-11 6980 Humboldt Between Blacksberg + Bridgeville Comment
  JEPS61632  Calochortus amabilis Lincoln Constance 1934-6-1 769 Humboldt between Bull Creek flat grove (mouth of Bull Creek) and Dyerville Bridge (Bull Creek road); South Fork Eel River, Bull Creek Region 45 Comment
  SEINET4169987  Calochortus pulchellus Unknown 1948-6-13 18050 Humboldt Harris 610 Comment
  HSC26870  Calochortus tolmiei Clifton Raymond Chesbrough 1973-6-19 94 Humboldt 0.5 mi. N of College Cove along coast Comment
  HSC45281  Calochortus tolmiei Clifton Raymond Chesbrough 1971-7-19 57 Humboldt 1.0 mi. N of Trinidad near ocean Comment
  RSA0120938  Caltha biflora Joseph P. Tracy 1951-6-14 19408 Humboldt Snow Camp. 1402 Comment
  UC503034  Caltha biflora Joseph P. Tracy July 16-19, 1930 8971 Humboldt Northern Coast Ranges. At McKay Camp, South Fork Mountain. 1676 Comment
  UCD138886  Calypso bulbosa var. occidentalis Linda M. Barker 1976-3-22 1347 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  UCD138885  Calypso bulbosa var. occidentalis J. C. Arthur 1934-3-20 s.n. Humboldt exact location unknown. Comment
  HSC44550  Calyptridium monospermum Brad Klipfel 1973-7-15 169 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC75952  Calyptridium monospermum Overton, Butler 1979-7-24 9736 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC74405  Calyptridium umbellatum Gail Newton 1980-8-10 2017 Humboldt Near Blake Mtn. 1798 Comment
  RSA119358  Calystegia occidentalis subsp. occidentalis S. S. Tillett 1956-7-6 625 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  UC582720  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1937-7-24 15531 Humboldt head of Little Hors-Linto Creek , head Little Hors-Linto Creek (Trinity Summit) 1371 Comment
  UC1197883  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1926-5-9 7454 Humboldt near Bridgeville; near Bridgeville 457 Comment
  UC162767  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1911-7-6 3342 Humboldt mountain slopes along road between Three Creeks and Mouth Willow Creek; Northern Coast Ranges, btwn Three Creeks and Willow Creek 762 Comment
  UC562491  Calystegia purpurata Joseph P. Tracy 1927-7-24 8298 Humboldt Upper Mattole 152 Comment
  RSA337437  Calystegia soldanella R. F. Thorne, P. C. Everett, K. Thorne 1965-8-9 35307 Humboldt Big Lagoon. 3 Comment
  RSA603171  Calystegia soldanella D. D. Keck, Jens Clausen 1935-6-16 3384 Humboldt Mouth of Little River. Comment
  UCD126164  Calystegia soldanella Roman Gankin 1965-8-6 559 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  UC1197877  Calystegia soldanella Joseph P. Tracy 1915-6-6 4650 Humboldt sandy beach near mouth Elk River (Eureka); Northern Coast Region, nr mouth Elk River, at Eureka 0 Comment
  SEINET10452961  Camissonia Mary Susan Taylor 1990-8-22 Taylor 6071 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC16448  Camissonia cheiranthifolia R. E. Hafenfeld 1965-5-9 26 Humboldt 1/2 mi. S of Squashan Creek near Gold Bluff Beach Rd. Comment
  HSC26985  Camissonia cheiranthifolia Brad Klipfel 264 Humboldt Samoa Comment
  UC1196941  Camissonia contorta Joseph P. Tracy 1901-4-14 1028 Humboldt Samoa Northern Coast Region, Humboldt Bay Comment
  CAS-BOT-BC160234  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Peter H. Raven; Richard Snow 1958-7-21 13661 Humboldt Cape Mendocino Comment
  CAS-BOT-BC160239  Camissoniopsis cheiranthifolia subsp. cheiranthifolia C. C. Harris; S. K. Harris; Clarence Crane, Jr. 1939-8-23 s.n. Humboldt On beach-sand at Samoa Comment
  SEINET10873252  Campanula prenanthoides Klipfel 1974-7-23 KLIPFEL 462 Humboldt Horse Mountain area, on south slope of ridge running to the east of the towers area. T6N R4E Sec. 35 Comment
  SEINET10873263  Campanula prenanthoides Tracy 1927-8-14 TRACY 8330 Humboldt BIG LAGOON, DAMP BANKS IN FERN PRAIRIES 400 Comment
  SEINET10972394  Campanula prenanthoides Duncan 1920-9-22 Duncan s.n. Humboldt Hoopa Valley Comment
  RSA46687  Campanula scouleri Doris K. Kildale 1937-7-18 15143 Humboldt Horse Mt. Comment
  SEINET10463476  Campanula scouleri Kildale 1937-7-18 KILDALE 15143 Humboldt HORSE MOUNTAIN Comment
  SEINET10463759  Campanula scouleri Joseph P. Tracy 1937-7-25 Tracy 15560 Humboldt Happy Camp Mountain; in Trinity Summit Range, northeast of Hawkins Bar, moist bank. 1280 Comment
  HSC6687  Cardamine californica S. S. Stutz 1963-3-31 16 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  UC249683  Cardamine californica Joseph P. Tracy 1921-3-20 5425 Humboldt 12 mi e Hydesville (Van Duzen River at Blue Slide); Northern Coast Ranges, Van Duzen River at Blue Slide 91 Comment
  UCD114499  Cardamine californica Parks; Tracy 1931-3-26 0916 Humboldt lower Van Duzen River. 60 Comment
  UC1199198  Cardamine nuttallii Joseph P. Tracy 1935-7-28 14320 Humboldt head Devil's Hole; Trinity Summit, head of Devil's Hole 1828 Comment
  HSC6639  Cardamine oligosperma S. J. Hawks 1965-3-12 4 Humboldt 0.5 mi. W of Fairhaven Comment
  CAS-BOT-BC384764  Cardionema ramosissimum Alice Eastwood 1923-8-14 12315 Humboldt Samoa Comment
  SEINET201070  Carduus pycnocephalus Joseph P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow on Bald Mt 762 Comment
  CAS-BOT-BC18268  Carex David D. Keck 1946-7-4 5604 Humboldt South Fork of Eel River, 8 miles north of Garberville. Comment
  HSC96377  Carex arcta Gordon Leppig, Tony LaBanca 2005-9-21 2321 Humboldt Pacific Lumber Company land; Clark Mountain Fen, Headwaters of Root Creek on NW side of Clark Mountain. 400 Comment
  POM160305  Carex arcta Joseph P. Tracy 1926-7-5 7723 Humboldt Near the Redwood House, on the road to head of Yager 610 Comment
  HSC98944  Carex athrostachya Cara Witte 2008-7-16 922 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  UC562630  Carex athrostachya Joseph P. Tracy 1935-7-27 14306 Humboldt Trinity Summit, open places at McKay Prairie 1584 Comment
  SEINET10644708  Carex athrostachya Joseph P. Tracy 1934-7-18 Tracy 13426 Humboldt 1524 Comment
  CAS-BOT-BC19216  Carex barbarae Henry M. Pollard 1948-7-29 s.n. Humboldt Near Woodson Mine - Near Orleans. Comment
  SEINET200966  Carex bolanderi Joseph P. Tracy 1935-6-23 13985 Humboldt Northern Coast Ranges French Camp Ridge. 1067 Comment
  JEPS25962  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC34211  Carex canescens Joseph Prince Tracy 1939-7-9 16318 Humboldt Blad Mountain; at Lake Prairie. 1066 Comment
  HSC61628  Carex cusickii Ruby Van Deventer 1959-6-20 Humboldt Humboldt/Del Norte County line, Onion Lake 1220 Comment
  UC303148  Carex densa Joseph P. Tracy 1925-5-30 7048 Humboldt McClellan Mountain Northern Coast RAnges 822 Comment
  SEINET10823148  Carex echinata Pykala 1987-6-11 PYKALA 1611 Humboldt North Trinity Mountain Wilderness, W of Crogan Hole, Abies concolor-forest, open springy mountainmeadow by a little stream, surrounded by Alnus-thickets. 1554 Comment
  POM160306  Carex echinata subsp. echinata Joseph P. Tracy 1926-6-27 7666 Humboldt Horse Mountain 1463 Comment
  CAS-BOT-BC19963  Carex exsiccata Joseph Prince Tracy 1938-9-25 16170 Humboldt Bald Mountain; at Lake Prairie. 1066 Comment
  UC562715  Carex globosa Joseph P. Tracy 1932-4-23 9832 Humboldt Englewood North Coast Ranges 91 Comment
  CAS-BOT-BC22320  Carex harfordii Joseph Prince Tracy 1935-6-8 13938 Humboldt Eureka. 60 Comment
  CHSC48077  Carex harfordii L. P. Janeway 1983-5-15 297 Humboldt In riparian bend of Mad River on S side, near Fish Hatchery Rd and across river from Blue Lake. 24 Comment
  JEPS25973  Carex harfordii Joseph P. Tracy 1935-6-8 13938 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC1103098  Carex harfordii Joseph P. Tracy 1935-6-8 13939 Humboldt at Eureka Northern Coast Ranges 0 Comment
  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
  UC562556  Carex integra Joseph P. Tracy 1935-7-23 14139 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC35567  Carex jonesii Joseph Prince Tracy 1932-7-15 10573 Humboldt Trinity Summit, at Corral Prairie 1584 Comment
  CAS-BOT-BC28504  Carex lenticularis var. limnophila Frank W. Peirson 1926-7-13 7046 Humboldt Along shore of first lagoon south of Orick Comment
  HSC48375  Carex leptopoda D. H. Norris May 1970 12457 Humboldt Top of ridge above Freshwater Lagoon Comment
  SEINET10817483  Carex leptopoda David Castaner 1984-5-29 Castaner 8069 Humboldt Entrance Road to Cal-Barrel area. Comment
  HSC102233  Carex luzulina M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1155 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC31662  Carex lyngbyei Joseph Prince Tracy 1935-6-8 13945 Humboldt Bordering Freshwater Slough, Humboldt Bay. 6 Comment
  SEINET3904281  Carex multicostata D. H. Norris 1971-7-17 19597 Humboldt Moist meadow at intersection of Kneeland-Bridgeville road and Redwood House Rd.; 0 Comment
  UC249755  Carex multicostata Joseph P. Tracy 1924-5-4 6664 Humboldt Bridgeville Northern Coast Ranges 243 Comment
  UC709322  Carex multicostata Joseph P. Tracy 1939-7-9 16316 Humboldt 1 mi n Murphy Meadows; Bald Mt. 914 Comment
  CHSC40158  Carex nudata L. P. Janeway 1983-6-22 322 Humboldt Along the north edge of Mad River, near jct of North Bank Road and Hunts Drive. 4 Comment
  JEPS80023  Carex nudata Joseph P. Tracy 1911-6-4 3220 Humboldt along Little River 5 mi from coast; Northern Coast Region, Little River 121 Comment
  SEINET3905214  Carex nudata Thomas Nelson 1977-5-30 3407 Humboldt In Mad River at Anderson's Ford north of Dinsmore on the McKeown Ranch.; 0 610 Comment
  CAS-BOT-BC119377  Carex obnupta Mrs. H. C. Cantelow 1936-5-17 1238 Humboldt Near Orick. Comment
  HSC104459  Carex obnupta Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-27 28 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  RSA246861  Carex obnupta Robert F. Thorne, Percy C. Everett 1965-8-5 35139 Humboldt Mt. Chamisal; Below summit. 534 Comment
  UC830188  Carex obnupta L. R. Abrams 1916-7-18 6083 Humboldt Arcata to Trinidad Comment
  HSC7066  Carex obnupta Paul Shields Apr 1955 Humboldt 5 mi. N of Arcata Comment
  NY11255  Carex olympica J. P. Tracy 1911-7-7 3390 Humboldt At the meadows on mountain side, three miles northwest of junction of Willow creek with Trinity River, and near Beebe's Ranch 914.4 Comment
  UC585634  Carex ovalis Joseph P. Tracy 1937-8-7 15617 Humboldt Murphy Ridge Bald Mt. 914 Comment
  HSC45390  Carex pachystachya Thomas W. Nelson, Jane P. Nelson 1978-7-2 4406 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 Comment
  HSC98935  Carex pachystachya Cara Witte 2007-7-8 444 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  SEINET10949620  Carex pachystachya Joseph P. Tracy 1935-6-8 Tracy 13936 Humboldt Eureka. In woods. Comment
  UC562654  Carex pachystachya Joseph P. Tracy 1930-7-10 8868 Humboldt Brannan Mountain Northern Coast Ranges 1219 Comment
  CAS-BOT-BC119163  Carex pansa Joseph Prince Tracy 1935-7-18 14104 Humboldt Low sandy ground at edge of salt marsh, next to Table Bluff. Around Humboldt Bay. 3 Comment
  CAS-BOT-BC119165  Carex pansa David Daniels Keck 1938-8-5 4766 Humboldt Calm Beach in dunes. Comment
  CAS-BOT-BC118005  Carex rossii Joseph Prince Tracy 1949-5-8 18295 Humboldt Carlotta. Open flat by old Strong's District School House, 5 mi E of town. 60 Comment
  CAS-BOT-BC28310  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-17 10675 Humboldt Trinity Summit, Wet meadow heading into Devil's Hole. 1828 Comment
  UC658  Carex serratodens H. N. Bolander 1866-1 6476 Humboldt Red Mountains Comment
  SEINET7486521 Image available Carex subbracteata Peter F. Zika 2009-1 24494 Humboldt above Route 299, 2.3 road miles W of junction with Chezen Road, Outer North Coast Range (NCoRO), between Lord-Ellis and Berry summits Comment
  SEINET8574179 Image available Carex subbracteata Unknown 2011-1 25493 Humboldt Titlow Hill Road, 3 road miles SE of Route 299 at Berry Summit, 1 air km SW of Horse Mountain. Outer North Coast Ranges (NCoRO) Comment
  UC1103099  Carex subfusca Joseph P. Tracy 1938-7-7 16030 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  HSC44031  Carex subfusca Thomas W. Nelson, Jane P. Nelson 1977-9-3 3728 Humboldt Along creek draining N end of pond above Alder Springs 1137 Comment
  CAS-BOT-BC115566  Carex tumulicola Henry M. Pollard 1945-8-26 s.n. Humboldt Road to old mine N of Orleans, Klamath River Canyon. Comment
  UC1103114  Carex tumulicola Joseph P. Tracy 1927-7-21 8288 Humboldt Carlotta Northern Caost Ranges 60 Comment
  UC562336  Carex tumulicola Harold E. Parks and Joseph P. Tracy 1935-6-16 11270 Humboldt lower nw slopes Buck Mt. 792 Comment
  CAS-BOT-BC115543  Carex unilateralis Joseph Prince Tracy 1941-6-29 16935 Humboldt Large dense clump, Hettenshaw Valley 944 Comment
  UC1152068  Carex unilateralis Joseph P. Tracy 1950-7-6 19011 Humboldt On the Albee Road; Buck Mountain; 3 miles south of Burr Valley 1158 Comment
  UC198585  Carpobrotus chilensis Joseph P. Tracy 1916-4-9 Humboldt n of Samoa (Ocean Beach at Humboldt Bay); Northern Coast Region, Humboldt Bay Comment
  RSA170321  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie on ridge 1 mile north above Bull Creek, about 2 miles west of Dyerville Comment
  HSC103410  Castilleja affinis subsp. affinis Kaylea Eickhoff, Cara M. Witte 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  BLMAR667  Castilleja affinis subsp. litoralis Jennifer Wheeler 2012-7-12 667 Humboldt King range, Strawberry rock 253 Comment
  UC1222830  Castilleja affinis subsp. litoralis Joseph P. Tracy 1950-6-8 18749 Humboldt 1 mi e Cape Mendocino (s slope of Bear River Ridge, near Capetown); Cape Ridge, Bear River Ridge 152 Comment
  UCSB26617  Castilleja ambigua Havlik, Neil 1968-8-21 Humboldt Samoa, west of Eureka Comment
  HSC90264  Castilleja ambigua subsp. humboldtiensis Jean Hanson 1980-5-24 69 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of Island, SW shore, 25 ft. from high tide line Comment
  BLMAR161  Castilleja applegatei subsp. pinetorum Donald Hazlett 1994-6-7 161 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  JEPS8625  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1935-7-24 14203 Humboldt near Trinity Summit Ranger Station; Trinity Summit 1828 Comment
  UC902257  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1948-9-5 18191 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC48266  Castilleja attenuata D. E. Anderson 1965-5-8 3642 Humboldt About 2 mi. N of Willow Creek on road running along E side of Trinity River Comment
  UC168996  Castilleja attenuata Mrs. M. H. Manning May 1902 Humboldt Hupa Comment
  CAS-BOT-BC244882  Castilleja miniata E. A. McGregor 1921-8-8 s.n. Humboldt 3 miles up Klamath River Comment
  HSC71608  Castilleja pruinosa Gail Newton 1980-6-16 198 Humboldt Near Onion Mtn. 1280 Comment
  JEPS83014  Castilleja subinclusa subsp. franciscana L. R. Heckard 1984-5-14 6156 Humboldt 2 mi s Phillipsville (just n of Freeway 101, on Avenue of the Giants) 83 Comment
  UC668171  Ceanothus cordulatus Joseph P. Tracy 1933-7-11 12681 Humboldt Cold Springs Grouse Mt. 1432 Comment
  UC170024  Ceanothus cuneatus var. cuneatus Harley P. Chandler June, 1901 1436 Humboldt Klamath River, North Coast Ranges 304 Comment
  HSC43220  Ceanothus foliosus R. Sutherland 1976-5-18 2 .18576 Humboldt 274 Comment
  BLMAR232  Ceanothus incanus Jennifer Anthony-Wheeler 1996-9-26 232 Humboldt King range, growing in open grassy meadow beside bear creek 548 Comment
  HSC37053  Ceanothus incanus R. Sutherland 1975-5-26 1 .26575 Humboldt 305 Comment
  UC1502128  Ceanothus incanus R. Sutherland 1975-5-13 1 Humboldt Shelter Cove at King Range sign Garberville Quad. Comment
  CAS-BOT-BC63684  Ceanothus integerrimus Harley P. Chandler 1901-6-1 1338 Humboldt Hupa Indian Reservation. 152 Comment
  CDA36054  Ceanothus integerrimus var. macrothyrsus CDFA Staff 1977-6-21 Humboldt Willow Creek. 0 Comment
  UC203969  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1918-5-1 4902 Humboldt towards McBrides; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC275288  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1924-5-4 6669 Humboldt near Bridgeville; Northern Coast Ranges, Little Larabee Creek 243 Comment
  CAS-BOT-BC51214  Ceanothus parryi Doris K. Kildale 1927-5-15 3302 Humboldt Petrolia Comment
  CAS-BOT-BC51219  Ceanothus parryi C. Hart Merriam 1920-8-30 s.n. Humboldt Garberville Comment
  HSC37084  Ceanothus parryi R. Sutherland 1975-5-30 4 .30575 Humboldt 320 Comment
  HSC55600  Ceanothus pumilus Overton, Butler 1979-7-23 9414 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  RSA46916  Ceanothus pumilus Doris K. Kildale 1926-4-25 1811 Humboldt Hoopa Mt. 793 Comment
  UC1198017  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17527 Humboldt Willow Creek Canyon, along Trinity Highway 609 Comment
  HSC89425  Ceanothus thyrsiflorus P. A. Daly 1984-5-8 6 Humboldt Trinidad Head. 61 Comment
  JEPS42171  Ceanothus thyrsiflorus W. L. Jepson 1932-8-6 16492 Humboldt Weott Comment
  RSA301654  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 4343 Humboldt Summit of Trinidad Head. 46 Comment
  UC166485  Ceanothus thyrsiflorus Joseph P. Tracy 1909-8-22 3077 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  CAS-BOT-BC52868  Ceanothus velutinus Carl Purdy 1917-4-16 s.n. Humboldt Ukiah Comment
  HSC37062  Ceanothus velutinus R. Sutherland 1975-5-30 1 .30575 Humboldt 320 Comment
  SBBG71412  Ceanothus velutinus H. E. McMinn 1931-6-27 2539 Humboldt up to summit from jct of Trinity and Klamath Rivers Comment
  CDA35602  Ceanothus velutinus T. C. Fuller, T. Gallion 1959-7-23 2817 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  HSC90328  Centaurium erythraea Jean Hanson 1980-6-22 104 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka, W end of island, 50 ft. NW of dike Comment
  UC511367  Centaurium muehlenbergii Lyman Benson 1929-7-19 1899 Humboldt Weeott Ranger Station, watershed of South Fork Eel River, seaward side of n coast mountain range South Fork Eel River 60 Comment
  HSC31118  Cephalanthera austiniae J. O. Sawyer 1970-6-24 2263 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  UC162888  Cerastium arvense Harley P. Chandler June, 1901 1384 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC1198314  Cerastium arvense Joseph P. Tracy 1912-7-26 3856 Humboldt base of Ashfield Butte (Kneeland Prairie); Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC44765  Cerastium fontanum subsp. vulgare Maralyn O'Meara 1972-6-8 87 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  UC668111  Cerastium glomeratum Joseph P. Tracy 1927-3-27 7849 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley, Willow Creek 152 Comment
  HSC4101  Cerastium glomeratum Francis Winter 1960-4-24 Humboldt 1 mi. S of Redwood Creek Ranch 396 Comment
  HSC4107  Cerastium glomeratum David K. Smith 1968-11-20 81 Humboldt About 4 miles SE of Arcata, along Jacoby Creek. Comment
  UC154257  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1903-5-23 1904 Humboldt along Eel River, at Alder Point Eel River; Northern Coast Ranges, , Alder Point 152 Comment
  UC1222946  Chaenactis douglasii var. douglasii Joseph P. Tracy 1947-7-9 17853 Humboldt Horse Mountain, top of Horse Mountain 1432 Comment
  HSC104102  Chamaecyparis lawsoniana Monica Rodriguez, William A. Worley 2015-3-21 21 Humboldt Along South Fork Rd, 8.3 mi. from 199 Redwood Hwy. Comment
  HSC56986  Chamaecyparis lawsoniana Overton, Butler 1979-7-23 9534 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC95786  Chamaecyparis lawsoniana Will Ferrand 2002-4-27 32 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  HSC55122  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-8-1 11922 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  HSC102595  Cheilanthes gracillima M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1582 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC55201  Cheilanthes gracillima Overton 1979-8-1 12308 Humboldt Near Mill Cr., close to the town of Hoopa 1402 Comment
  HSC17950  Chimaphila umbellata Chestnut, Drew 1888-7-9 Humboldt Campbell's Comment
  SFV18491  Chimaphila umbellata C. Lee 2002-4-27 32 Humboldt USFS Road 13, about 3 miles northwest of intersection with Highway 96. Comment
  RSA21445  Chimaphila umbellata subsp. occidentalis C. B. Wolf 1937-8-12 9209 Humboldt North Coast Range, South Fork Mountain, 0.6 miles S of Blake Lookout. 1677 Comment
  CAS-BOT-BC236916  Chloropyron maritimum subsp. palustre A. A. Heller 1924-7-21 13867 Humboldt Salt marsh at Eureka Comment
  UC1196374  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1913-7-13 4357 Humboldt Patrick's Point; Northern Coast Ranges 30 Comment
  UC667993  Chrysolepis sempervirens Joseph P. Tracy 1937-7-29 15583 Humboldt summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC1223064  Cichorium intybus Joseph P. Tracy 1950-7-9 18981 Humboldt Frank Graham's Farm; Willow Creek Comment
  UC1197340  Cicuta douglasii Joseph P. Tracy 1937-8-12 15662 Humboldt Snow Camp 1402 Comment
  HSC36440  Cicuta douglasii John Rehling 1974-7-8 9 Humboldt Big Lagoon Bog Comment
  UCD127284  Cicuta douglasii R. V. Parke; J. M. Tucker 1953-5-30 2652 Humboldt near mouth of Salmon Creek, east side of Highway 101, around 8 miles south of Eureka. Comment
  SEINET201029 Image available Cinna latifolia J. P. Tracy 1919-9-18 5255 Humboldt Trinity Summit 1524 Comment
  HSC62998  Circaea alpina subsp. pacifica David Wheeler 1979-5-13 106 Humboldt Redwood Valley, 1.0 mi. S of dump on other side of Redwood Creek from rd. Comment
  UC166541  Cirsium arvense Joseph P. Tracy 1906-7-4 2536 Humboldt near Hydesville 60 Comment
  POM225838  Cirsium arvense J. T. Howell 1931-6-17 6724 Humboldt Redwood Highway, 1.5 miles north of Orick Comment
  CAS-BOT-BC279974  Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 miles east of Berry Summit Comment
  HSC60029  Cirsium occidentale var. candidissimum M. A. Baker 1978-5-6 484 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  RSA0070852  Cirsium occidentale var. candidissimum C. B. Wolf 1934-6-30 5839 Humboldt 7 miles from Shelter Cove on road to Briceland. 152 Comment
  RSA671131  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt Nr. Berry Summit on Titlow Hill Road, 3.9 miles south of Hwy. 299 Comment
  HSC35706  Cirsium occidentale var. venustum Thomas W. Nelson, B. Reinhardt 1975-7-30 2122 Humboldt Beside private road to Pilot Rock Comment
  UC179915  Cirsium vulgare Joseph P. Tracy 1914-9-13 4629 Humboldt Eureka 0 Comment
  UCD104030  Clarkia amoena James P. Smith 1973-5-26 6827 Humboldt Scotia Bluffs along the Eel River near Rio Dell. 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
  UC1222852  Clarkia concinna Joseph P. Tracy 1950-7-2 18967 Humboldt 6 mi ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1198509  Clarkia concinna subsp. concinna Joseph P. Tracy 1934-7-9 13335 Humboldt ridge 5 mi s Harris 762 Comment
  JEPS43694  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1936-6-10 14935 Humboldt mountain slopes w of mouth South Fork Trinity River 609 Comment
  SEINET200783  Clarkia gracilis subsp. tracyi Joseph P. Tracy 1931-6-28 9597 Humboldt Buck Mountian, lower foothills of its northwest slope. 762 Comment
  UC1196987  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy July, 1908 2784 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 762 Comment
  CAS-BOT-BC172393  Clarkia purpurea subsp. viminea Henry M. Pollard 1947-8-23 s.n. Humboldt Field west of Orleans Comment
  RSA108220  Clarkia purpurea subsp. viminea Harlan Lewis, M. Lewis 1947-6-14 422 Humboldt Highway 36 at south fork of Van Duzen River Bridge (4-119) Comment
  HSC100576  Clarkia rhomboidea Carl C. Marshall Jun 1886 293 Humboldt Pine Creek. Comment
  HSC17709  Claytonia parviflora subsp. parviflora Elrid H. Spinas 1948-5-22 34 Humboldt Horse Mtn. Comment
  RSA265299  Claytonia perfoliata J. M. Miller 1974-6-3 369 Humboldt Horse Mtn, 2.6 miles S of US 299 on the Horse Mtn/Tiltlow Hill road.On the W side of the road. 1066 Comment
  HSC78609  Claytonia rubra subsp. depressa L. P. Janeway, K. Berg, Paul Wilson 1985-1-19 1197 Humboldt N Spit of Humboldt Bay, BLM Wallflower Protection Area 5 Comment
  HSC71826  Claytonia saxosa Thomas W. Nelson, Jane P. Nelson 1980-6-27 5957 Humboldt Saddle between Mt. Lassic and peak to E 1677 Comment
  HSC17754  Claytonia saxosa D. E. Anderson 1967-6-10 4366 Humboldt W-facing slope on Horse Mtn. 1220 Comment
  HSC71792  Claytonia sibirica Gail Newton 1980-6-16 176 Humboldt Near Monks Camp. 1097 Comment
  UC412615  Claytonia sibirica Mrs. M. H. Manning Humboldt near Hupa Comment
  CAS-BOT-BC443888  Claytonia sibirica Ynez Whilton Winblad 1941-6-25 s.n. Humboldt Between Garberville and Pepperwood Comment
  UC672991  Claytonia sibirica Joseph P. Tracy 1933-5-20 12273 Humboldt near Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  CAS-BOT-BC92597  Clematis ligusticifolia Carl D. Duncan 1920-9-21 314 Humboldt On floor of Hoopa Valley. Comment
  UC249703  Clematis ligusticifolia Joseph P. Tracy 1921-9-4 5956 Humboldt near Willow Creek (Trinity R. Valley); Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC465903  Clematis ligusticifolia P. E. Goddard 1907-7-14 b 126 Humboldt by Mad River Mad River Comment
  HSC39182  Clinopodium douglasii D. E. Anderson, J. P. Smith 1971-6-28 - 1218 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  JEPS61596  Clintonia andrewsiana Lincoln Constance 1934-5-31 752 Humboldt South Fork Eel River, along n side of Bull Creek, w boundary of park to Grasshopper Peak (Squaw Creek) Road Bull Creek; Bull Creek Region, South Fork Eel River, Bull Creek Comment
  UC14994  Clintonia andrewsiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5496 Humboldt between Camp Grant and Pepperwood; North Coast Ranges Comment
  UC147862  Collinsia greenei Joseph P. Tracy 1908-6 9840 Humboldt nw slope Buck Mtn; Northern Coast Ranges, Buck Mtn 1219 Comment
  JEPS25064  Collinsia heterophylla Joseph P. Tracy 1948-6-13 18049 Humboldt near Harris 609 Comment
  HSC32485  Collinsia linearis Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  UC582465  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1932-5-10 9932 Humboldt Bear River Ridge; Northern Coast Ranges, Bear River Ridge 609 Comment
  UC582446  Collinsia torreyi var. wrightii Joseph P. Tracy 1933-7-16 12777 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  HSC74418  Collomia grandiflora Gail Newton 1980-8-10 2040 Humboldt Near Blake Mtn. 1707 Comment
  SBBG11070  Collomia grandiflora D. E. Breedlove 1961-7-4 653 Humboldt 10.9 mi W of Willow Crk on US Hwy 299 822 Comment
  HSC100589  Collomia heterophylla Carl C. Marshall Jun 1887 498 Humboldt Harris. Comment
  RSA21450  Collomia heterophylla C. B. Wolf 1937-8-13 9214 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC73732  Collomia tracyi M. A. Baker 1980-7-19 3001 Humboldt Near Bret Hole. 1814 Comment
  UC1197864  Collomia tracyi Mrs. C. M. Wilder 1923-7-23 Humboldt on sand bar along river Carlotta 30 Comment
  CDA30705  Conyza canadensis M. K. Beyers, I. Shepardson 2009-9-13 254 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC27021  Conyza canadensis Brad Klipfel 1973-8-9 263 Humboldt Samoa Comment
  HSC45026  Conyza canadensis R. Sutherland 1976-8-19 7 .19876 Humboldt 259 Comment
  JEPS109236  Coptis laciniata Stephanie Puentes 2008-4-23 Humboldt Vicinity Larabee Valley, along Horse Creek about 1 mile upstream from Hwy 36. Comment
  CHSC63435  Corallorhiza mertensiana Vernon H. Oswald 1994-6-29 6366 Humboldt Friday Ridge Rd. (Forest Rd. 6N08) 7.3 mi N of Titlow Hill Rd., 0.8 mi S of Brush Mtn Lookout Rd., S of Hwy. 299 and Willow Creek. 975 Comment
  HSC48687  Corallorhiza mertensiana Brad Klipfel 1973-7-31 256 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC97979  Corallorhiza mertensiana Cara Witte 2007-7-8 428 Humboldt Board Camp Mountain. Pack trail 4E26. 1463 Comment
  RSA183520  Corallorhiza striata D. E. Anderson 1965-5-15 3684 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie Road Comment
  JEPS55932  Cordylanthus maritimus subsp. palustris T. I. Chuang, L. R. Heckard and R. Bacigalupi 1968-7-3 6455 Humboldt Coastal Salt Marsh, ne edge Arcata Bay Comment
  JEPS25066  Cordylanthus pilosus subsp. pilosus Joseph P. Tracy 1912-8-3 3977 Humboldt opposite Buck Mt.; Valley of Van Duzen River 762 Comment
  CAS-BOT-BC101142  Corethrogyne filaginifolia Joseph P. Tracy 1936-7-10 15046 Humboldt Vicinity of Carlotta 30 Comment
  UC581781  Corethrogyne filaginifolia J. P. Tracy 1936-8-17 15157 Humboldt bottom Arcata 15 Comment
  UC725642  Corethrogyne filaginifolia A. A. Heller 1924-7-23 13874 Humboldt Little River Comment
Read comments
Sep 29 2006
  RSA125370  Corethrogyne filaginifolia var. californica Peter H. Raven, R. Snow 1958-7-21 13658 Humboldt 2 miles north of Cape Mendocino Comment
  RSA275304  Corethrogyne filaginifolia var. californica J. P. Smith 1976-10-3 8993 Humboldt Samoa Peninsula, just west of drag strip Comment
  HSC45638  Cornus nuttallii Diane L. Reed 1978-4-22 35 Humboldt Tish Tang Campground, 5 miles north of Willow Creek on State Hwy. 96. Comment
  HSC59488  Cornus nuttallii M. A. Ericksen 1979-4-28 237 Humboldt Across from Bigfoot statue on left side of Hwy. 299, into Willow Creek from the west. Comment
  UC634835  Cornus nuttallii H. L. Mason 1928-7-14 4897 Humboldt E. Fork Eel R. near Garberville; E. Fork Eel R. Comment
  LA97947  Cornus sessilis Jane Turner; Francis M. Ball 1962-7-10 SK&F- 1144 Humboldt East Fork Willow Creek Forest Camp, Six Rivers National Forest, highway 299 ca. 5 mi. W of Willow Creek 457 Comment
  SJSU2584  Cornus sessilis H. L. Buckalew 1962-7-2 Humboldt junction of Willow Cr & E Fork Willow Cr on Hwy 299 Comment
  HSC64124  Coronopus didymus J. P. Smith 1973-5-26 6876 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC12827  Cortaderia selloana Wilbur Peterson, Thomas W. Nelson 1970-11-1 105 Humboldt Arcata, Humboldt State University campus, S side of the tennis court Comment
  UC667998  Corylus californica Joseph P. Tracy 1935-7-31 14393 Humboldt Devil's Backbone (Barren rocky ridge connecting Trinity Summit with Salmon Summit 1524 Comment
  BLMAR492  Corylus cornuta subsp. californica Jennifer Wheeler 2009-4-30 492 Humboldt King range, Hidden Valley trail; near overlook Comment
  HSC77347  Crassula connata L. P. Janeway 1983-5-1 256 Humboldt W of Samoa Rd. and N of Coast Guard lands 6 Comment
  HSC77512  Crassula connata K. Berg 1984-4-8 520 Humboldt South spit of Humboldt Bay, 1.4 mi. S of South Jetty, E of road Comment
  UC1763986  Crataegus monogyna P. F. Zika 1995-5-1 12314 Humboldt 0.5 mi E of Ferndale (S of Grizzly Bluff Rd., S of and above cemetary) 60 Comment
  CAS-BOT-BC290591  Crepis capillaris Doris K. Kildale 1928-5-15 6031 Humboldt Bug Creek, Chaparral Mountain Comment
  SD39858  Crepis capillaris Edith A. Purer 1932-7-30 4683 Humboldt South of Orick. Comment
  UC1199453  Crepis capillaris Joseph P. Tracy 1919-5-31 5139 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC538046  Crepis occidentalis E. B. Babcock 1932-6-23 403 Humboldt near Bridgeport (saddle of ridge above Art Renfroe's place) Comment
  UC302296  Crepis pleurocarpa Joseph P. Tracy 1926-6-20 7621 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC1981756  Crepis setosa R. Spellenberg, N. Zucker 2011-7-24 14298 Humboldt Miranda, on the W side of highway in center of town. Comment
  CAS-BOT-BC290907  Crepis setosa Henry M. Pollard 1947-8-21 s.n. Humboldt Between Orleans and Boyse [Boise] Creek Comment
  RSA285966  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-30 17446 Humboldt Northwest corner of overpass of Highway 1 freeway to Garberville, 1 mile south of Fields Landing Comment
  SEINET3875024  Crocosmia aurea Bennett, Dunn; Dziekanowski 1976-8-6 477 Humboldt Collected by Highway 101, North side of Orick.; 0 30 Comment
  HSC62776  Crocus speciosus M. Dean Griswold Jr. 1979-4-28 34 Humboldt W side of old Hwy. 101 Comment
  HSC63483  Croton setiger M. A. Baker 1979-6-6 376 Humboldt Along Hwy. 96 Comment
  SEINET12280860  Cryptantha milobakeri J. P. Tracy, Harris, S. K. 1942-1 17221 Humboldt E side of Hoopa Valley, hillside Comment
  UC1222273  Cryptantha milobakeri Joseph P. Tracy with Dr. S. K. Harris 1942-6-23 17221 Humboldt e side Hoopa Valley (foot of Trinity Summit Road); Trinity Summit, Hoopa Valley Comment
  HSC73579  Cryptantha torreyana Gail Newton 1980-7-14 1479 Humboldt Near Last Chance Ridge. 1219 Comment
  UC1239651  Cryptantha torreyana Joseph P. Tracy 1926-7-5 7732 Humboldt Valley of South Yager Creek 762 Comment
  JEPS67872  Cryptantha torreyana Joseph P. Tracy 1921-6-19 5841 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC1076384  Cupressus lawsoniana H. L. Mason 1932-7-21 7111 Humboldt on road Arcata to Weaverville (e slope of Southfork Mts.); Southfork Mts. Comment
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Jul 25 2018
  UC906744  Cuscuta californica Joseph P. Tracy 1947-7-5 17776 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC902067  Cuscuta suksdorfii Joseph P. Tracy 1949-8-4 18430 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC10939  Cynodon dactylon D. E. Anderson 1965-6-10 3788 Humboldt Along Hwy. 101 in south part of Eureka Comment
  CHSC56529  Cynoglossum grande L. P. Janeway 1984-5-6 758 Humboldt Berry Summit; above old (abandoned) Hwy 299 just west of the Summit. 86 Comment
  UC1222262  Cynoglossum grande Joseph P. Tracy 1950-4-20 18617 Humboldt 2 mi. w. Dinsmore's (n.w. slope of Buck Mt.); Buck Mt. Comment
  BLMAR320  Cynosurus cristatus Jennifer Anthony-Wheeler 2002-8-9 320 Humboldt Lost Coast Headland, Growing near pond in lost Coast headlands 121 Comment
  HSC35349  Cynosurus echinatus J. D. Ackerman, A. M. Montalvo 1975-6-22 482 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  HSC9517  Cynosurus echinatus J. P. Tracy, H. E. Parks 1933-6-11 12542 Humboldt Near Miranda 152 Comment
  UC1056066  Cynosurus echinatus J. I. Mallory 1955-6-7 114 Humboldt n end Luke Prairie; Quad. 29-B-3, n end of Luke Prairie 350 Comment
  CDA38926  Cyperus eragrostis Gordon Leppig 1998-6-26 859 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. Comment
  HSC45552  Cyperus eragrostis J. P. Smith 1971-10-9 4990 Humboldt Mad River above the Fish Hatchery. Comment
  CAS-BOT-BC70541  Cystopteris fragilis Doris K. Kildale 1926-5-2 1880 Humboldt Willow Creek Flat - Trinity River tributary 152 Comment
  HSC98541  Cystopteris fragilis Cara Witte 2008-6-9 704 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1418 Comment
  HSC14680  Cytisus multiflorus R. A. Magie 1964-5-3 56 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  CDA36734  Cytisus scoparius Richard R. Halse 2010-3-25 7856 Humboldt Along U.S. Hwy 101 ca. 9.7 miles south of Orick. Comment
  SEINET12152438  Cytisus scoparius J. P. Tracy 1950-1 18830 Humboldt Eureka Comment
  HSC34813  Dactylis glomerata Dryden 1975-4-20 122 Humboldt Arcata 0 Comment
  HSC102211  Danthonia californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1126 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1103260  Danthonia californica var. americana Joseph P. Tracy 1949-8-11 18475 Humboldt 2-6 mi s Grouse Mt.; Kinsey Ridge 1280 Comment
  UC184354  Danthonia californica var. americana Joseph P. Tracy 1912-6-9 3650 Humboldt Alton Northern Coast Region 30 Comment
  CAS-BOT-BC420359  Darmera peltata Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  JEPS49591  Darmera peltata Joseph P. Tracy 1918-5-27 4934 Humboldt foot of Grouse Mt. (Redwood Creek); Northern Coast Ranges 457 Comment
  RSA470773  Daucus pusillus M. O'Mera 1974-6-2 496 Humboldt South Spit to Humboldt Bay Comment
  CAS-BOT-BC292093  Delairea odorata Stuart K. Harris 1960-12-5 22066 Humboldt Mouth of Howe Creek Comment
  UCD95699  Delphinium decorum K. Esau 1934-5-7 s.n. Humboldt Near Blocksburg 609 Comment
  HSC102522  Delphinium decorum subsp. tracyi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1509 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  SJSU3556  Delphinium decorum subsp. tracyi R. D. Spadoni 1965-5-1 45 Humboldt c. 10 mi SE of Bridgeville on State Rte 36 533 Comment
  HSC33057  Delphinium decorum subsp. tracyi Thomas W. Nelson 1974-5-7 1236 Humboldt Beside Kneeland Rd. 0.5 mi. N of Kneeland School Comment
  HSC45501  Delphinium decorum subsp. tracyi M. Alcasas 1978-4-7 7 Humboldt Freshwater Rd. 200 yds. N of Kneeland School 857 Comment
  CAS-BOT-BC10318  Delphinium hesperium D. E. Breedlove 1961-7-4 s.n. Humboldt 10.9 miles west of Willow Creek on US 299 822 Comment
  POM149763  Delphinium hesperium L. R. Abrams 1916-7-11 600 Humboldt Between Blocksberg and Bridgeville Comment
  HSC56090  Delphinium menziesii G. L. Clifton, Griswold 1979-7-31 11783 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  RSA46895  Delphinium nudicaule Doris K. Kildale 1927-5-15 3164 Humboldt Petrolia Comment
  CAS-BOT-BC9951  Delphinium nudicaule Doris K. Kildale 1927-3-20 2928 Humboldt Philipsville, south fork of Eel River Comment
  HSC25006  Delphinium nudicaule S. Estes 1964-4-29 12 Humboldt May Ranch, 2 mi. N of Bridgeville 305 Comment
  RSA168928  Delphinium nudicaule Joseph P. Tracy 1950-6-15 18815 Humboldt Mail Ridge, north of Harris 7 miles Comment
  UC1196332  Delphinium nudicaule Joseph P. Tracy 1921-6-19 5830 Humboldt Berry Mtn. Northern Coast Ranges 914 Comment
  CDA24232  Delphinium nuttallianum K. Eickhoff, C. M. Witte 2005-6-15 12 Humboldt Northwestern California; 14.1 miles south of Highway 299 on NFI, 0.25 mile northeast of Grouse Mountain. Comment
  CAS-BOT-BC121963  Delphinium trolliifolium Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale on road to Cape Mendocino. Comment
  CAS-BOT-BC121965  Delphinium trolliifolium Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale on road to Cape Mendocino. Comment
  UC503045  Delphinium trolliifolium Joseph P. Tracy 1927-6-5 8099 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  JEPS2559 Image available Dentaria californica Joseph P. Tracy 1921-3-20 5426 Humboldt 12 mi e Hydesville (Van Duzen River at Blue Slide); Northern Coast Ranges, Van Duzen River; Van Duzen River at Blue Slide, E of Hydesville, Humboldt Co. 91 Comment
  HSC9587  Deschampsia cespitosa D. J. McVean 1965-5-22 82 Humboldt Dike by Mad River Slough, just N of Somoa Blvd. Comment
  UC526669  Deschampsia cespitosa subsp. beringensis Joseph P. Tracy 1927-7-16 8257 Humboldt mouth of Elk R.; Northern Coast Region, around Humboldt Bay, Elk R. 6 Comment
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Sep 27 2007
  UC637044  Deschampsia cespitosa subsp. beringensis Edward Lee 1934-8-17 1153 Humboldt 35 mi. n. Eureka (e. shore of Big Lagoon); Big Lagoon 3 Comment
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Sep 27 2007
  UCR32148  Deschampsia cespitosa subsp. beringensis David J. Keil 1983-7-2 17301 Humboldt Humboldt Bay salt marsh at Arcata Corporation Yard [600 G St.] Comment
  CHSC102216  Deschampsia danthonioides Peter F. Zika 2009-6-15 24488 Humboldt North Coast; near Hatchery Road, S of town of Blue Lake. 20 Comment
  HSC40327  Deschampsia danthonioides Thomas W. Nelson, Jane P. Nelson 1976-6-22 2860 Humboldt Bog along road to Goat Hill. 1646 Comment
  UCD62500  Deschampsia danthonioides A. H. Murphy 1951-6-1 56 Humboldt Near Mad River, 1 mile E of Low Gap. Comment
  CAS-BOT-BC201769  Deschampsia elongata H. E. Parks 1931-5-1 3646 a Humboldt Big Lagoon Comment
  HSC26166  Deschampsia elongata J. P. Smith, Steve Selva 1970-6-30 4107 Humboldt Comment
  RSA183518  Deschampsia elongata D. E. Anderson 1965-9-5 4075 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  HSC8356  Dicentra formosa Eugene Andreuccetti 1964-4-11 18 Humboldt 1/2 mi. S of Garberville on Hwy. 101 Comment
  HSC8363  Dicentra formosa R. J. Vernimen 1963-3-25 17 Humboldt Clam Beach Lagoons Comment
  HSC95828  Dicentra formosa Steven Lee 2004-3-30 7 Humboldt Arcata Community Forest, 100 ft. E of junction of Granite Ave. and Jolly Giant Creek Rd. Comment
  SEINET12103158  Dicentra formosa J. P. Tracy 1950-1 18720 Humboldt Near Mountain Glen, 7 mi S of Ferndale 610 Comment
  CAS-BOT-BC402406  Dicentra formosa subsp. formosa J. P. Tracy 1904-4-17 2013 Humboldt Immediate vicinity of Eureka 152 Comment
  JEPS9734  Dicentra pauciflora Joseph P. Tracy 1933-7-16 12776 Humboldt near McKay Camp (South Fork Mountain); North Coast Ranges, South Fork Mountain 1676 Comment
  RSA10045  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  JEPS64179  Dichelostemma capitatum Lincoln Constance 1934-6-19 914 Humboldt near Grasshopper Peak summit; South Fork Eel River, Bull Creek Region 914 Comment
  SEINET12053835  Dichelostemma capitatum J. P. Tracey 1951-1 19404 Humboldt toward Ashfield Butte, Kneeland Prairie Comment
  HSC32382  Dichelostemma capitatum subsp. capitatum Linda M. Barker 1974-5-11 182 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC60041  Dichelostemma capitatum subsp. capitatum M. A. Baker 1978-5-6 480 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UCD139434  Dichelostemma capitatum subsp. capitatum J. W. Logan 2016-6-17 s.n. Humboldt from Kneeland Ranges. Comment
  HSC97967  Dichelostemma congestum Cara Witte 2007-7-2 392 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1406 Comment
  HSC43845  Dichelostemma ida-maia Maralyn O'Meara 1974-7-17 554 Humboldt Kneeland Comment
  HSC98708  Dichelostemma ida-maia Cara Witte 2007-6-14 274 Humboldt Along National Forest 1. Near Kinsey Ridge. 2 miles north of intersection with 4N06. 1319 Comment
  SEINET12053111  Dichelostemma ida-maia L. K. Henry 1971-1 s.n. Humboldt along Rt.36, 2 mi E of Dinsmore, in Six Rivers National Forest Comment
  UC1222686  Dichelostemma ida-maia Joseph P. Tracy 1950-7-2 18973 Humboldt 1 mi s Grizzly Camp Comment
  UCSB13002  Dichelostemma ida-maia Muller, Katherine 1954-6-21 Humboldt Mad River Camp #2 on Mad River, below Ruth P.O. Comment
  HSC31223  Dichelostemma multiflorum D. E. Anderson 1972-6-20 5724 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  POM89789  Digitaria sanguinalis Joseph P. Tracy 1919-9-13 5195 Humboldt Trinity River Valley. Near Willow Creek. 152 Comment
  CAS-BOT-BC150341  Diplacus aurantiacus E. C. Johnston 1931-8-1 s.n. Humboldt Klamath River to Arcata Comment
  CAS-BOT-BC153240  Diplacus kelloggii Doris K. Kildale 1928-5-1 5985 Humboldt [MacLellan] McClellan Mountain 914 Comment
  POM277211  Disporum hookeri var. hookeri Lyman Benson 1929-7-16 1840 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  RSA46820  Disporum smithii Doris K. Kildale 1926-3-26 1636 Humboldt Old Kneeland road. Comment
  SDSU11887  Disporum smithii Harvey 1938-8-13 2243 Humboldt Humbolt State Redwood Park Comment
  UC34066  Distichlis spicata J. P. Tracy 1900-7-4 869 Humboldt Samoa Comment
  UCD64617  Distichlis spicata var. stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-3 1178 Humboldt Around Fields Landing. Comment
  JEPS14441  Downingia elegans W. L. Jepson 1927-7-3 12363 Humboldt Miranda South Fork of Eel River 228 Comment
  UC1115832  Draba verna Joseph P. Tracy 1939-5-14 16294 Humboldt Dinsmore's along Van Duzen River, Dinsmore's 746 Comment
  CAS-BOT-BC401535  Drosera rotundifolia Carl B. Wolf 1927-8-22 778 Humboldt Big Lagoon Comment
  HSC36312  Drosera rotundifolia James Beaver 1973-5-20 Humboldt Big Lagoon Comment
  RSA0011669  Drosera rotundifolia Patricia Wilder 1968-8-21 4380 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC57995  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-7-31 11758 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  JEPS35200  Dryopteris arguta W. L. Jepson 1932-8-9 16542 Humboldt Deerfoot Glade Bull Creek 121 Comment
  CAS-BOT-BC71053  Dryopteris expansa John Thomas Howell; Gordon H. True; Lewis S. Rose 1972-6-5 48820 Humboldt Patrick Point State Park Comment
  CAS-BOT-BC71055  Dryopteris expansa Mrs. H. C. Cantelow 1936-5-18 1378 Humboldt 8 mi. N. of Orick Comment
  UC62809  Dryopteris expansa Marshall A. Howe 1896-5-30 Humboldt Eureka Comment
  HSC6461  Dudleya farinosa D. E. Anderson 1961-9-2 1773 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  JEPS19336  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie; dried pond bed 60 Comment
  UC1103655  Eleocharis macrostachya Joseph P. Tracy 1935-8-25 14750 Humboldt Stone Lagoon 3 Comment
  HSC7317  Eleocharis macrostachya J. Good 1964-5-15 44 Humboldt Mad River Park, 50 yds. N of parking lot Comment
  UC668025  Eleocharis macrostachya Joseph P. Tracy 1927-7-17 8284 Humboldt Three Cabins North Coast Ranges (grassy slopes on lower western foothills of Chaparral Mountain) 457 Comment
  UC1103654  Eleocharis obtusa Joseph P. Tracy 1938-8-14 16106 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  HSC7339  Eleocharis ovata D. E. Anderson 1963-9-29 2855 Humboldt Fish Lake Comment
  UC1103670  Eleocharis pachycarpa Joseph P. Tracy 1923-5-19 6213 Humboldt Patrick's Point 30 Comment
  UC1542873  Eleocharis pachycarpa Harold E. Parks Jun 1934 5275 Humboldt Spruce Cove Trinidad Comment
  RSA246901  Eleocharis pachycarpa Robert F. Thorne, Percy C. Everett 1965-8-7 35190 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  UC249740  Eleocharis parvula Joseph P. Tracy with H. E. Parks 1924-8-3 6744 Humboldt Stone Lagoon 6 Comment
  HSC74697  Elymus glaucus Gail Newton 1981-8-7 2465 Humboldt Near Board Camp Mtn. 1478 Comment
  POM295856  Elymus glaucus Lyman Benson 1929-7-14 1793 Humboldt Weott Ranger Station S. Fork Eel River Comment
  CAS-BOT-BC203478  Elymus glaucus subsp. glaucus L. R. Abrams 1922-6-25 8224 Humboldt 6 mi north of Garberville Comment
  CAS-BOT-BC203799  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon 6 Comment
  HSC99111  Elymus lanceolatus subsp. lanceolatus Cara Witte 2007-6-14 273 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  HSC103977  Elymus mollis subsp. mollis C. Reynolds 2015-4-12 34 Humboldt Along Freshwater Beach, close to wave slope, south of the Kuchel Visitor Center 3 Comment
  SDSU8812  Epilobium angustifolium Harvey 1938-8-13 2236 Humboldt Stephens Grove Comment
  CDA30232  Epilobium brachycarpum M. K. Beyers, I. Shepardson 2009-9-13 257 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  UC183696  Epilobium campestre Joseph P. Tracy 1912-8-4 3978 Humboldt Carlotta 60 Comment
  UC668304  Epilobium campestre Joseph P. Tracy 1938-7-5 16010 Humboldt 5 mi e Carlotta; Strong's District School House 45 Comment
  RSA44304  Epilobium canum subsp. latifolium H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mts. 1524 Comment
  RSA46782  Epilobium canum subsp. latifolium Doris Kildale Gillespie 1937-8-12 15255 Humboldt South Fork Mountain. Comment
  HSC74689  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-7 2456 Humboldt Near Board Camp Mtn. 1478 Comment
  HSC74754  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-6 2398 Humboldt Near Humbug Creek 1256 Comment
  UC1122558  Epilobium ciliatum subsp. ciliatum H. L. Person 1932-7-16 Humboldt hwy n Trinidad; Rock Point Quadrangle Comment
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Aug 3 2007
  HSC99304  Epilobium ciliatum subsp. glandulosum Jimerson, J. Pageau 1979-8-10 743 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 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
  RSA181880  Epilobium foliosum Joseph P. Tracy 1928-5-6 8430 Humboldt Northern Coast Ranges: Trinity River Valley, at Willow Creek 152 Comment
  JEPS31498  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1936-8-7 15102 Humboldt head of Little Hors-Linto Creek Trinity Summit 1524 Comment
  UC1197008  Epilobium hallianum Joseph P. Tracy 1935-7-27 14300 Humboldt McKay Prairie Trinity Summit 1584 Comment
  UC1197009  Epilobium hallianum Joseph P. Tracy 1936-6-28 15028 Humboldt Lake Prairie Bald Mountain 1219 Comment
  UC1198480  Epilobium minutum Joseph P. Tracy 1927-6-12 8164 Humboldt Horse Mountain Northern Coast Ranges (lower slopes) 1066 Comment
  JEPS31553  Epilobium minutum Lincoln Constance 1934-6-8 838 Humboldt Cow Creek fire trail from Bull Cr. road n over divide into headwaters of Bear Cr.; South Fork Eel River, Bull Creek Region Comment
  RSA249432  Epilobium minutum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5598 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC53953  Epilobium oreganum Terry Griswold, Marvin Butler 1979-7-11 7003 Humboldt Near Snow Camp Lake, close to the town of Willow Creek 1393 Comment
  UC249614 Image available Epilobium septentrionale Joseph P. Tracy 1921-8-21 5942 Humboldt Mouth of South Fork of Trinity River; Northern Coast Ranges; Humboldt Co. 152 Comment
  POM232041  Epipactis gigantea I. L. Wiggins 1930-7-8 4677 Humboldt Sandstone cliffs along the Eel River, near Scotia Comment
  CAS-BOT-BC56970  Equisetum arvense Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC36242  Equisetum arvense John Rehling 1975-5-12 73 Humboldt Near S end of Big Lagoon, growing along Hwy. 101 Comment
  RSA684659  Equisetum arvense May N. Ackley 1933-5-2 301 Humboldt Redwood Hwy. Comment
  HSC76320  Equisetum telmateia subsp. braunii Teresa Prendusi 1981-7-23 348 Humboldt Near Black Mtn. 890 Comment
  SD90175  Equisetum telmateia subsp. braunii Benjamin C. Stone 1952-6-24 139 Humboldt 15 miles south of Klamath on Hwy. 101 36 Comment
  POM281805  Equisetum telmateia var. braunii Lyman Benson 1928-7-9 416 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  POM281806  Equisetum telmateia var. braunii Lyman Benson 1928-7-9 824 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  CAS-BOT-BC213623  Eragrostis mexicana subsp. virescens Henry M. Pollard 1946-8-14 s.n. Humboldt Orleans Comment
  UC1145099  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1950-9-22 19372 Humboldt 8 mi below Orleans; Klamath River near Slate Creek 121 Comment
  SEINET10618699  Erechtites glomeratus Harold E. Parks, Susan T. Parks Parks 24033 Humboldt Spruce Cove, Trinidad. 61 Comment
  HSC27395  Eremocarpus setiger Thomas W. Nelson 1970-9-3 220 Humboldt Mad River. Comment
  POM161486  Ericameria greenei Joseph P. Tracy 1919-9-22 5273 Humboldt Trinity Summit 1890 Comment
  HSC98529  Erigeron aliceae Cara Witte 2007-6-13 265 Humboldt Along Forest Service Rd. 5N04. Near Grouse Mountain 1538 Comment
  RSA21324  Erigeron foliosus var. confinis C. B. Wolf 1937-8-13 9218 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  RSA246776  Erigeron glaucus R. F. Thorne, Percy C. Everett 1965-8-7 35220 Humboldt Samoa Peninsula. 3 Comment
  CAS-BOT-BC214576  Erigeron philadelphicus Kenneth Clark 1980-6-14 697 Humboldt Shelter Cove. North fork Dead Man's Gulch 121 Comment
  UCD20386  Erigeron philadelphicus K. Esau 1934-5-6 s.n. Humboldt Fort Seward. Comment
  SEINET11851212  Erigeron strigosus H. P. Chandler 1901-1 1402 Humboldt Klamath River, North Coast Ranges 244 Comment
  CAS-BOT-BC224256  Eriodictyon californicum Harley P. Chandler 1901-6-1 1352 Humboldt Hupa Indian Reservation [Hupa Valley Indian Reservation] 152 Comment
  HSC13527  Eriodictyon californicum P. J. Zinke 1950-10-9 182 Humboldt E slope of King Peak 1159 Comment
  UC672919  Eriogonum compositum var. compositum Joseph P. Tracy 1932-7-12 10460 Humboldt head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  BLMAR108  Eriogonum latifolium Jennifer Anthony-Wheeler 1994-9-8 108 Humboldt Samoa/manilla dunes, growing in every dune mat area in the samoa rare plant protection area 12 Comment
  CAS-BOT-BC259182  Eriogonum latifolium L. R. Abrams 1916-7-18 6087 Humboldt Arcata to Trinidad Comment
  CHSC69503  Eriogonum latifolium Vernon Oswald; Lowell Ahart 1997-9-4 8853 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.1 mi south of Hwy. 255. 6 Comment
  HSC16903  Eriogonum latifolium J. Wendell Howe 1932-9-28 928 Humboldt Samoa Comment
  UC1198102  Eriogonum luteolum var. luteolum Joseph P. Tracy 1920-8-15 5390 Humboldt at mouth of Bluff Creek on Klamath River Klamath River, Bluff Creek 152 Comment
  UC1198108  Eriogonum luteolum var. luteolum Joseph P. Tracy 1930-8-3 9142 Humboldt along Van Duzen River opposite Buck Mountain; Van Duzen River 762 Comment
  HSC55268  Eriogonum nudum Overton, Butler 1979-8-2 12638 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC261498  Eriogonum nudum var. nudum L. R. Abrams 1916-7-11 6003 Humboldt Between Blocksberg and Bridgeville Comment
  UC54762  Eriogonum nudum var. nudum P. E. Goddard 1901-7-12 84 Humboldt Hupa Comment
  UC672904  Eriogonum nudum var. nudum Joseph P. Tracy 1932-7-20 10728 Humboldt open places at Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC775037  Eriogonum nudum var. nudum Carl B. Wolf 1937-8-13 9231 Humboldt 8 mi e on New Road towards Trinity Summit Hoopa Valley; North Coast Range 1219 Comment
  OBI82417  Eriogonum nudum var. nudum Dennis Anderson, D Santana, J Lackey 1971-7-15 5265 Humboldt Trinity CO. : Along 1 SO 7, T 29 N, R 6 E, secs. 29, 30, along Shanty Creek, CA. 5 miles west of Ruth Dam. 1341 Comment
  RSA178577  Eriogonum nudum var. nudum Joseph P. Tracy 1950-06 18762 Humboldt At Domingo Hill (east slope from the summit). Near Petrolia; hills between town and ocean Comment
  RSA18610  Eriogonum nudum var. nudum Carl B. Wolf 1937-9-8 9300 Humboldt North Coast Range, Bull Creek- Petrolia Road, 11 miles west of redwood highway. 305 Comment
  RSA44500  Eriogonum nudum var. nudum H. M. Pollard 1947-8-22 s.n. Humboldt Klamath River bed near Fontana's Fishing Lodge, Orleans region Comment
  RSA46699  Eriogonum nudum var. nudum Doris K. Kildale 1927-6-25 3582 Humboldt Ettersburg Comment
  UC6392  Eriogonum nudum var. oblongifolium Harley P. Chandler June, 1901 1442 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  CAS-BOT-BC261723  Eriogonum nudum var. oblongifolium Doris K. Kildale 1928-6-24 5272 Humboldt Entrance to Horse Mountain 853 Comment
  CAS-BOT-BC261725  Eriogonum nudum var. oblongifolium Doris K. Kildale 1926-7-22 2422 Humboldt Metropolitan, bluffs near Canyon Park Comment
  SEINET11938137  Eriogonum nudum var. oblongifolium J. P. Tracy 1950-1 19373 Humboldt Slat Creek Comment
  SEINET244744 Image available Eriogonum umbellatum James L. Reveal 2001-7-18 8345 Humboldt Along U.S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom. 1295 Comment
  HSC43079  Eriogonum umbellatum var. argus Brad Klipfel 1973-7-31 224 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS56193  Eriogonum umbellatum var. argus W. L. Jepson 1902-7-25 2119 Humboldt Trinity Summit Comment
  CAS-BOT-BC435540  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along USFS Rd 1 at S end of Whiting Ridge, about 0.5 air mi WNW of High Salt Ground and 9.3 air mi W of Hyampom 1295 Comment
  HSC43085  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-7-1 146 Humboldt N Trinity Mtn. 1860 Comment
  HSC54736  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-7-26 10179 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  UC90307  Eriophyllum lanatum var. achilleoides W. W. Price 1890-7-1 Humboldt Mad River Comment
  CAS-BOT-BC301182  Eriophyllum lanatum var. arachnoideum Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  UCSB6527  Eriophyllum lanatum var. integrifolium Keator, Glenn 1958-6-27 Humboldt In the vicinity of Ettersburg Comment
  UC727166  Eriophyllum staechadifolium A. A. Heller 1924-7-23 13878 Humboldt between Little River and Trinidad Comment
Read comments
Sep 29 2006
  HSC26295  Erodium moschatum T. O. Osborne 1970-9-16 40 Humboldt Blank Rock, 1/4 mi. W Trinidad Head Comment
  HSC45085  Erysimum capitatum var. capitatum R. Sutherland 1978-4-23 16 .23478 Humboldt Kinsey (Fraser) Ridge near head 732 Comment
  HSC53822  Erysimum capitatum var. capitatum Terry Griswold, Marvin Butler 1979-7-10 6266 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC73747  Erysimum capitatum var. capitatum M. A. Baker 1980-7-15 2949 Humboldt Near Whiting Ridge. 1341 Comment
  HSC6784  Erysimum menziesii R. van Weemen Van Noord 1966-3-24 2 Humboldt N end of Samoa drag strip. 6 Comment
  CHSC19730  Erythranthe dentata Gary J. Stebbins 1970-5-17 81 Humboldt Along Jolly Giant Creek up from H. S. C. dorms 1.9 miles from the parking lot. 70 Comment
  CAS-BOT-BC383042  Erythranthe grandis David B. Lowry 2005-5-14 BSR Humboldt Along Blue Slide Road, just north of the intersection with Bluff road 17 Comment
  UC1225861  Erythronium grandiflorum Joseph P. Tracy 1942-6-23 17255 Humboldt near Water Dog Lakes; Trinity Summit 1828 Comment
  HSC38788  Erythronium grandiflorum subsp. grandiflorum J. P. Smith 1976-5-30 8825 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  HSC96197  Erythronium grandiflorum subsp. grandiflorum Jennifer Lumbert, James Robinson 2005-6-15 14 Humboldt NE of Grouse Mtn. 1490 Comment
  JEPS88924  Erythronium revolutum Harley P. Chandler Jun 1901 1279 Humboldt Hupa Indian Reservation 1066 Comment
  HSC59103  Eucalyptus globulus Clark L. Miller 1979-5-24 9157 Humboldt Along Hwy. 101 ca. 100 yards from Murray Rd. off-ramp. Comment
  RSA167199  Eucephalus glabratus Joseph P. Tracy 1941-8-24 17043 Humboldt South Fork Mountain, near McKay Camp Comment
  HSC57686  Eucephalus ledophyllus G. L. Clifton, Griswold 1979-7-25 10904 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC44570  Eucephalus ledophyllus var. ledophyllus Brad Klipfel 1973-7-15 189 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1199300  Eucephalus tomentellus Joseph P. Tracy 1934-8-29 13621 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC562614  Euchiton gymnocephalus Joseph P. Tracy 1936-5-29 14829 Humboldt 2 mi ne Orick (on Bald Hills road) 152 Comment
  CAS-BOT-BC310489  Euchiton sphaericus Joseph P. Tracy 1915-9-12 4677 Humboldt Northern Coast Ranges. Mouth of Laribee Creek 60 Comment
  CAS-BOT-BC206804  Euonymus occidentalis John Thomas Howell 1936-8-29 12887 Humboldt Eel River 16 miles N of Garberville Comment
  CAS-BOT-BC206924  Euonymus occidentalis Joseph P. Tracy; H. E. Parks 1925-6-14 7123 Humboldt Kneeland Paririe Road, along stream. 457 Comment
  RSA24201  Euonymus occidentalis C. B. Wolf 1941-3-3 9996 Humboldt N. Coast Range, 3.3 miles W of Briceland on the road to Shelter Cove. 152 Comment
  BLMAR290  Euonymus occidentalis var. occidentalis Jennifer Anthony-Wheeler 2001-5-22 290 Humboldt Headwaters Forest Reserve, growing shaded streambank by ' babbits ridge ' 335 Comment
  HSC96080  Euphorbia crenulata Andrew Byers, Stuart E. Richardson, III 2005-6-8 6 Humboldt 20 mi. S of Hwy. 299 on Titlow Hill Rd. 1032 Comment
  CDA4841  Euphorbia lathyris T. C. Fuller 1968-7-31 17448 Humboldt North of the County Agricultural Commission office, east side of Highway 101 freeway, south of Humboldt Hill Road, Eureka. 0 Comment
  UC1198981  Euphorbia spathulata Joseph P. Tracy 1927-5-30 8096 Humboldt Garberville; Northern Coast Ranges 121 Comment
  UC774610  Eurybia radulina Carl B. Wolf 1937-9-8 9301 Humboldt 11 mi w of, Bull Creek -Petrolia Road Redwood Highway; North Coast Range 304 Comment
  RSA121321  Festuca elmeri H. S. Yates 1936-6-17 5690 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  HSC76542  Festuca idahoensis Denis Kearns 1981-7-6 82 Humboldt Near Mosquito Lake 1256 Comment
  UC188916  Festuca idahoensis Jos. Burtt Davy 1899-6-9 5377 Humboldt near Harris Comment
  HSC32491  Festuca occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5722 Humboldt McKeown Ranch, N of Dinsmore Comment
  CAS-BOT-BC278962  Festuca rubra David D. Keck 1944-7-11 5490 Humboldt 3 mi. N.E. of Capetown 152 Comment
  HSC47790  Festuca rubra Michael A. Watkins 1978-6-10 2 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  RSA10070  Festuca rubra Joseph P. Tracy 1927-6-26 8217 Humboldt Stone Lagoon. Comment
  HSC58702  Festuca subulata Griswold, Butler 1979-7-11 7033 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UC1056065  Festuca subuliflora J. I. Mallory 1955-2-22 115 Humboldt 1 mi n Luke Prairie Quad. (Quad 29-B-2); Peavine Ridge 701 Comment
  UC249609  Foeniculum vulgare Joseph P. Tracy 1922-8 6104 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC1198727  Fragaria chiloensis J. P. Tracy 1900-6-5 851 Humboldt immediate vicinity of Eureka (at Bucksport) 0 Comment
  UC154220  Fragaria chiloensis J. P. Tracy 1906-4-29 2423 Humboldt Eureka, immediate vicinity of Comment
  HSC38191  Fragaria chiloensis Peter Sorensen 1976-5-28 Humboldt N Spit of Humboldt Bay, S of Samoa Comment
  HSC75559  Fragaria virginiana J. O. Sawyer, J. Cole 1977-7-3 3007 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  CAS-BOT-BC53406  Frangula californica subsp. occidentalis John Thomas Howell 1937-7-31 13717 Humboldt 5 miles east of Berry Summit Comment
  HSC18410  Frangula purshiana Francis Winter 1960-5-6 Humboldt Across from Azalea State Park Entrance Comment
  HSC89760  Frangula purshiana M. Roantree 1985-5-30 73 Humboldt E side of Trinidad Head along dirt road Comment
  SEINET516308  Frangula purshiana Vernon H. Oswald 1998-4-16 8914 Humboldt Elk Head, N end of Trinidad State Beach. 30 Comment
  CAS-BOT-BC59996  Frangula purshiana C. B. Wolf; B. D. Stark 1933-9-24 5494 Humboldt W. slope Sierra Nevada. No. side of Bear Valley. 1371 Comment
  SBBG4629  Frangula purshiana subsp. purshiana M. J. Cody 1938-7-10 Humboldt near Trinidad Comment
  CAS-BOT-BC217696  Fraxinus latifolia Doris K. Kildale 1925-6-21 735 Humboldt Briceland Bridge 1/2 mi. west of Garberville Comment
  UC1198637  Fraxinus latifolia Joseph P. Tracy 1923-6-19 6293 Humboldt Upper Mattole North Coast Ranges 152 Comment
  UC162719  Fraxinus latifolia Joseph P. Tracy 1911-7-7 3377 Humboldt 3 mi nw junction of Willow Creek with Trinity River (and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  SEINET255379  Fritillaria lanceolata Joseph P. Tracy 1913-6-20 4228 Humboldt Lower foothills of Buck Mountain, on its NW slope. 762 Comment
  CAS-BOT-BC130445  Fritillaria purdyi Doris K. Kildale 1926-3-21 1575 Humboldt Kneeland Prairie Comment
  JEPS6589  Galium aparine Lincoln Constance 1934-5-24 629 Humboldt s slope of Lower Look Prairie; Bull Creek Region, South Fork Eel River 121 Comment
  UC602546  Galium parisiense Joseph P. Tracy 1937-7-11 15421 Humboldt Garberville 152 Comment
  HSC38523  Galium parisiense D. E. Anderson, J. P. Smith 1971-6-18 - 1075 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  RSA53645  Galium parisiense Roxana S. Ferris 1955-7-11 12972 Humboldt Summit of U.S. Hwy 299 btwn. Willow Creek and Blue Lake. Comment
  UC602511  Galium porrigens Joseph P. Tracy 1926-4-11 7406 B Humboldt Bridgeville 198 Comment
  HSC38387  Galium trifidum Peter Sorensen 1976-6-14 Humboldt N Spit of Humboldt Bay, S of Samoa near Humboldt County Airport Comment
  JEPS6555  Galium trifidum var. pacificum Joseph P. Tracy 1934-7-2 13287 Humboldt mouth of river Little River 6 Comment
  POM232037  Galium triflorum I. L. Wiggins 1930-7-22 4688 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  HSC19825  Galium triflorum Yarick 1960-8-5 Humboldt M&M, 7 mi., Krueger Creek Comment
  CAS-BOT-BC303397  Gamochaeta ustulata L. R. Abrams 1916-7-11 6021 Humboldt Mouth of Grizzly Creek on Van Duzon River Comment
  HSC33077  Gamochaeta ustulata Thomas W. Nelson, Jim Ackerman 1974-5-14 1266 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  UC1199343  Gamochaeta ustulata Joseph P. Tracy 1935-5-25 13835 Humboldt Fort Seward 106 Comment
  HSC40406  Garrya elliptica Linda M. Barker 1976-3-22 1339 Humboldt 3 mi. W of Arcata Comment
  HSC91891  Garrya elliptica E. Mackey 1986-7-21 Humboldt Patrick's Point State Park; Wedding Rock Trail Comment
  UC1215539  Garrya elliptica Gene S. Van Horn 1963-1-5 35 Humboldt W. M. Lanphere's ranch 9 Comment
  CAS-BOT-BC182148  Garrya fremontii L. B. Kildale 1930-8-10 10534 Humboldt Snow Camp, head of Redwood Creek Comment
  CAS-BOT-BC182169  Garrya fremontii Henry M. Pollard 1946-9-1 s.n. Humboldt Near Willow Creek, Orleans region Comment
  RSA183630  Garrya fremontii D. E. Anderson 1965-4-24 3537 Humboldt Along Titlow Hill Road, ca. two miles from its junction with Highway 299. Comment
  UC1225767  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Willow Creek; Trinity River Valley 152 Comment
  SEINET200332 Image available Gastridium phleoides J. P. Tracy 1912-7-26 3824 Humboldt Kneeland Prairie Comment
  UC185004  Gastridium ventricosum Joseph P. Tracy 1912-7-26 3824 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC48798  Gaultheria ovatifolia Brad Klipfel 1974-9-17 583 Humboldt W of Friday Ridge above the E Fork of Willow Creek Comment
  HSC73068  Gaultheria ovatifolia M. A. Baker 1980-6-16 1953 Humboldt Near Onion Mtn. 1280 Comment
  UC1222635  Gaultheria ovatifolia Joseph P. Tracy 1951-6-14 19417 Humboldt Snow Camp 1402 Comment
  HSC1802  Gaultheria shallon William J. Ferlatte, B. D. Rogers 1966-8-15 3127 Humboldt 5 mi. E of Arcata Comment
  HSC7806  Gaultheria shallon A. E. Inman 1962-5-25 Humboldt Mad River, Lindsay Creek jct., N bank Comment
  HSC93253  Gaultheria shallon Gordon Leppig 1998-3-25 726 Humboldt Big Lagoon County Park, bank just E of bog 8 Comment
  RSA1915  Gaultheria shallon C. B. Wolf 1930-10-30 1043 Humboldt Old Coast Road, 4 mi. so. of Thorn. 305 Comment
  RSA257013  Gaultheria shallon Gary D. Wallace 1971-7-29 949 Humboldt Prairie Creek Redwood St. Pk. along Zig Zag Trail #3 W of Hwy. 101. Comment
  SBBG12430  Gaultheria shallon D. E. Breedlove 1961-7-4 645 Humboldt 4.8 mi E of the N fork of the Mad River on US 299 685 Comment
  SDSU2869  Gaultheria shallon Harvey 1938-8-13 2254 Humboldt West of Arcata. Comment
  HSC54671  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-7-25 9910 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC75456  Gayophytum diffusum subsp. parviflorum J. O. Sawyer 1980-7-18 3600 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC97985  Gayophytum diffusum subsp. parviflorum Cara Witte 2007-7-11 502 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  UC1196968  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1926-6-27 7687 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC1196969  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1919-9-18 5239 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC562364  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13046 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  JEPS27603  Gayophytum heterozygum Joseph P. Tracy 1932-7-12 10456 Humboldt Brett Hole Klamath Mountains, Trinity Summit (head) 1828 Comment
  POM247151  Gayophytum heterozygum Joseph P. Tracy 1933-8-30 13045 Humboldt North Coast Ranges: Grouse Mountain 1524 Comment
  UC202459  Gayophytum heterozygum Joseph P. Tracy 1919-9-18 5248 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  UC505119  Gayophytum heterozygum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9050 1/2 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC40676  Gayophytum heterozygum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2925 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC55272  Gayophytum humile Overton, Butler 1979-8-2 12650 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC81905  Gayophytum humile Thomas W. Nelson 1979-7-11 4993 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC505126  Gayophytum humile Joseph P. Tracy Jul 16 1930-Jul 19 1930 8940 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC162854  Genista monspessulana J. P. Tracy 1906-4-22 2413 Humboldt immediate vicinity Eureka 0 Comment
  UC1173685  Gentiana calycosa Joseph P. Tracy 1939-8-16 16412 Humboldt Horse Mountain Northern Coast Ranges (serpentine formation) 1402 Comment
  JEPS24351  Gentiana plurisetosa Joseph P. Tracy 1919-9-22 5276 Humboldt Trinity Summit 1828 Comment
  HSC22015  Gentiana sceptrum Thomas W. Nelson 1970-10-17 237 Humboldt Big Lagoon Comment
  RSA245252  Gentiana sceptrum David K. Smith 1968-10-26 30 Humboldt At Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  UC1198641  Gentianopsis simplex Doris Kildale Aug. 1925 Humboldt Trinity Summit Comment
  RSA0028176  Geranium bicknellii var. bicknellii D. E. Anderson 1963-5-25 2497 Humboldt About 4 miles east of Petrolia. Comment
  UC1197399  Geranium carolinianum Joseph P. Tracy 1912-7-4 3723 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC179955  Geranium carolinianum Joseph P. Tracy 1914-5-14 4436 Humboldt Fort Seward Northern Coast Region 121 Comment
  UC907950  Gilia capitata subsp. capitata Joseph P. Tracy 1935-7-29 14345 Humboldt brushy ridge 1 mi ne Ranger Station (Trinity Summit); Trinity Summit 1676 Comment
  CAS-BOT-BC225473  Gilia millefoliata D. E. Breedlove 1962-6-7 3041 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  CAS-BOT-BC225475  Gilia millefoliata Lewis S. Rose 1972-6-5 72004 Humboldt Samoa 3 Comment
  HSC16989  Gilia millefoliata J. R. Woodside 1963-5-19 3 Humboldt 1 1/4 mi. N of Fairhaven Comment
  HSC59713  Gilia millefoliata Clark L. Miller 1979-5-9 4114 Humboldt Samoa Dunes off Samoa Blvd. Comment
  UC198642  Gilia millefoliata Joseph P. Tracy 1917-5-30 4794 Humboldt Little River Beach , Little River Beach (Northern Coast Ranges) 6 Comment
  UC1197905  Gilia tricolor subsp. tricolor Joseph P. Tracy 1929-5-5 8561 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River, Miranda (along South Fork of Eel River) 121 Comment
  HSC89597  Gilia tricolor subsp. tricolor M. Roantree 1985-5-24 59 Humboldt S of Trinidad Head summit near cross Comment
  HSC97919  Githopsis specularioides Cara Witte 2007-6-19 303 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  JEPS37565  Glebionis segetum W. L. Jepson and W. W. Mott 1903-6 2225 Humboldt bluff tops overlooking sea at Caspar 18 Comment
  UCD132389  Glebionis segetum Lincoln Constance 1934-6-25 927 Humboldt Bull Creek Region, South Fork Eel River, on east side of the road at Englewood across the road from Collins' Englewood Campground. Comment
  HSC10000  Glyceria borealis D. J. Wilder 1965-4-28 21 Humboldt 1/2 mi. W of Arcata on Samoa Rd. Comment
  SEINET267678 Image available Glyceria declinata Gordon Leppig 1996-5-5 329 Humboldt Arcata Healthsport parking lot of Union St. 2 Comment
  SEINET267677 Image available Glyceria occidentalis Gordon Leppig 1996-5-5 329 Humboldt Arcata Healthsport parking lot of Union St. 2 Comment
  BLMAR713  Glyceria striata Clara Sander 2005-7-13 713 Humboldt Jacoby creek, growing along trail 36 Comment
  HSC70848  Glyceria striata M. A. Baker 1980-6-7 1825 Humboldt Near Ammon Creek. 732 Comment
  SEINET11849414  Gnaphalium microcephalum var. thermale J. P. Tracy 1948-1 18184 Humboldt near Elk Camp on Grizzly Camp Road, Trinity Summit, on ridge 2 mi E of Grove's Prairie 1524 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
  HSC28074  Goodyera oblongifolia J. D. Ackerman, A. Montalvo 1973-8-20 114 Humboldt W slope of N Trinity Mtn., E of Hoopa Comment
  CAS-BOT-BC304733  Grindelia hirsutula Carl B. Wolf 1927-8-22 783 Humboldt Big Lagoon Comment
  CAS-BOT-BC304735  Grindelia hirsutula L. R. Abrams 1927-8-31 12057 Humboldt Along highway between Eureka and Arcata Comment
  JEPS41894  Grindelia hirsutula W. L. Jepson 1936-8-17 17924 Humboldt 2.5 mi s of Fields Landing (flats) Comment
  UC1192227  Grindelia hirsutula Malcolm A. Nobs and S. Galen Smith 1949-8-3 1179 Humboldt salt marshes around Fields Landing Fields Landing Comment
  UC581777  Grindelia hirsutula Joseph P. Tracy 1930-7-5 8831 Humboldt sw slopes fronting the ocean 3 mi s of point of Cape Mendocino Cape Mendocino (on hillsides up to 500 ft elevation) 30 Comment
  SEINET11843448  Grindelia stricta subsp. venulosa F. H. Utech 1986-1 86 -410 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  JEPS67940  Hackelia bella H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout; South Fork Mountain Comment
  HSC44510  Hastingsia alba Brad Klipfel 1973-7-1 116 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC508212  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Wet or seepy ground, serpentine formation, Horse Mountain 1463 Comment
  RSA377548  Hastingsia alba Brad W. Klipfel 1973-7-1 116 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  POM161485  Hazardia whitneyi var. discoidea Joseph P. Tracy 1919-9-23 5287 Humboldt Trinity Summit 1829 Comment
  HSC59038  Hedera helix Thomas Wood 1979-4-20 119 Humboldt Along frontage rd., parallel and E of Hwy. 101 at Patrick Cr. Rd. intersection, adjacent to Patrick Cr. 6 Comment
  HSC56436  Helenium bigelovii Griswold, Butler 1979-7-12 7151 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC582769  Helenium bolanderi H. E. Parks and Joseph P. Tracy 1937-7-16 15431 Humboldt Trinidad 60 Comment
  HSC49372  Hemitomes congestum T. Jimerson, J. Pageau 1979-6-15 581 Humboldt West of FS 11N21, on the boundary between Sections 27 and 28. 762 Comment
  UC198637  Hemitomes congestum Joseph P. Tracy 1916-6-25 4740 Humboldt between Little River and Redwood CreekNorthern Coast Ranges Redwood Creek (Northern Coast Ranges); Northern Coast Ranges 304 Comment
  CAS-BOT-BC310073  Hemizonella minima R. K. Gierisch; D. H. Esplin 1969-7-1 3535 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  CAS-BOT-BC310075  Hemizonella minima Doris K. Kildale 1927-7-22 3910 Humboldt Lassecks Peaks - Coral Goat Camp 1661 Comment
  HSC40554  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1976-5-23 2520 Humboldt SW facing slopes 1666 Comment
  UC249805  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1923-6-20 6337 Humboldt near Briceland; Northern Coast Ranges 304 Comment
  JEPS40410  Hemizonia congesta subsp. tracyi W. L. Jepson 1902-7-1 1975 Humboldt at Berry's Ranch Redwood Creek; Hupa road Comment
  UC180240  Heracleum lanatum Joseph P. Tracy 1914-6-14 4511 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC180509  Heracleum lanatum Joseph P. Tracy 1914-6-14 4511 Humboldt Carlotta North Coast Ranges, Carlotta 60 Comment
  HSC79539  Heracleum maximum Kenneth Clark 1979-7-1 460 Humboldt Deadman's Gulch 11 Comment
  UC1223121  Hesperevax acaulis var. robustior Joseph P. Tracy 1949-6-12 18312 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley 152 Comment
  SEINET10460664  Heterocodon rariflorum Tracy TRACY 5009 Humboldt WHITE THOME VALLEY Comment
  HSC28930  Heteromeles arbutifolia Diane Johnson 1972-12-4 Humboldt Butler Valley near Big Bend Rd. Comment
  RSA50141  Heteromeles arbutifolia E. K. Balls 1949-7-10 13969 Humboldt on way from Somes Bar to Orleans, near Siskiyou County line. 152 Comment
  CAS-BOT-BC311053  Heterotheca oregona var. oregona John Thomas Howell 1936-8-29 12889 Humboldt Bluffs of Eel River, 11 miles n. of Garberville Comment
  CAS-BOT-BC311055  Heterotheca oregona var. oregona Joseph P. Tracy 1933-10-15 13097 Humboldt Miranda, along South Fork of Eel River 121 Comment
  CAS-BOT-BC311076  Heterotheca oregona var. rudis Alice Eastwood 1921-7-21 10667 a Humboldt Van Duzen River Comment
  HSC74179  Heuchera merriamii M. A. Baker 1980-7-23 3176 Humboldt Near Orleans Mtn. 1859 Comment
  HSC33081  Heuchera micrantha Thomas W. Nelson, J. D. Ackerman 1974-5-14 1269 Humboldt Baker Beach, 4 mi. S of Trinidad Comment
  HSC71159  Heuchera micrantha Thomas W. Nelson 1977-6-15 3423 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  HSC8624  Heuchera micrantha Jack Rockwell 1962-4-29 34 Humboldt S Bank of Van Duzen River, E of Hwy. 101 9 Comment
  CAS-BOT-BC420405  Heuchera micrantha var. diversifolia Harley P. Chandler 1901-5-1 1231 Humboldt Redwood Belt 457 Comment
  RSA0066093  Heuchera micrantha var. diversifolia Thomas W. Nelson 1977-6-15 3423 Humboldt Along Forest Rd 5N10 just N of jct with Rd 6N08. 1372 Comment
  CAS-BOT-BC424195  Heuchera micrantha var. hartwegii Alice Eastwood 1907-4-21 s.n. Humboldt Trinidad, Light-house Point Comment
  CAS-BOT-BC312393  Hieracium albiflorum Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC312395  Hieracium albiflorum W. R. Dudley 1899-6-19 s.n. Humboldt Scotia Comment
  HSC70727  Hieracium albiflorum Gail Newton 1980-7-14 1522 Humboldt Near Deadman Ridge 1097 Comment
  UC1223083  Hieracium bolanderi Joseph P. Tracy 1947-7-9 17849 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC318531  Hieracium greenei Joseph P. Tracy 1935-7-29 14340 Humboldt Trinity Summit near ranger station 1828 Comment
  HSC57977  Hieracium greenei G. L. Clifton, Griswold 1979-7-31 11701 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1223077  Hieracium nudicaule Joseph P. Tracy 1949-8-11 18471 Humboldt 2 to 6 mi s from Grouse Mt. (e of headwaters of Redwood Creek beginning at the place where the electric power line crosses); Kinsey Ridge 1280 Comment
  UC167083  Hierochloe occidentalis Joseph Burtt Davy 1899-6-11 5424 Humboldt Elk Prairie Comment
  UC187262  Hierochloe occidentalis Joseph P. Tracy 1911-5-7 3180 Humboldt Kneeland Prairie North Coast Ranges 762 Comment
  UCD115146  Hirschfeldia incana Joseph P. Tracy 1931-5-21 9434 Humboldt Eel River, Alton to Fortuna. 15 Comment
  CAS-BOT-BC280736  Holcus lanatus Ira L. Wiggins 1930-6-25 4614 Humboldt 2 miles north of Samoa Comment
  HSC45220  Holcus lanatus M. Alcasas 1978-5-27 111 Humboldt On access road to Eel River Sawmills, 0.5 mi. from Hwy. 101 30 Comment
  HSC47786  Holcus lanatus Michael A. Watkins 1978-6-10 7 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  RSA53833  Holcus lanatus Henry M. Pollard 1946-8-10 s.n. Humboldt South of Klamath River and east of Perch Creek, Orleans region. Comment
  SEINET197047 Image available Holcus lanatus H. E. Parks, ST Parks 24260 Humboldt Spruce Cove Trinidad. 61 Comment
  HSC48817  Holodiscus discolor Brad Klipfel 1973-7-31 231 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57957  Holodiscus discolor G. L. Clifton, Griswold 1979-7-31 11651 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  JEPS44652  Holodiscus discolor L. Constance 1934-6-4 812 Humboldt Look Prairie; Dyerville; Bull Cr. road; South Fork of Eel River; Look Prairie, and Bull Cr. road, to Dyerville. Comment
  SDSU9080  Holodiscus discolor D. F. Howe 1964-8-10 3950 Humboldt 1.8 miles from Ferndale on road to Petrolia. 305 Comment
  UC1198702  Holodiscus discolor J. P. Tracy 1901-6-16 1150 Humboldt immediate vicinity of Eureka 0 Comment
  HSC58607  Hordeum brachyantherum G. L. Clifton, Griswold 1979-7-25 10949 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC682044  Hordeum brachyantherum subsp. brachyantherum G. L. Stebbins Jr. and G. L. Church 1941-5-26 3103 Humboldt Eureka, N end of city Comment
  UC1103483  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1936-6-9 14913 Humboldt on the road from Bull Creek to Upper Mattole; Windy Nip Garp 609 Comment
  CAS-BOT-BC536630  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt Foot of low hills south of Fields Landing 6 Comment
  UC1565797  Horkelia tridentata subsp. flavescens R. Spellenberg 1990-7-10 10239 Humboldt 11 air mi e Burnt Ranch (Buck Flat, at junction of USFS Rd. 5N01 and USFS Rd. 1, 12 mi s of Berry Summit (on Hwy 299)); extreme e edge of county 1432 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
  UC154501  Horkelia tridentata subsp. flavescens J. Burtt Davy 1899-6-19 5629 Humboldt from Bairs to Hoopa Hoopa Mt. Comment
  HSC96225  Horkelia tridentata var. flavescens Eric Schori, Kazuyuki Ishimaru 2005-6-24 15 Humboldt Titlow Hill Rd. S of Hwy. 299, Buck Flat 1595 Comment
  HSC44374  Hosackia crassifolia Thomas W. Nelson, Jane P. Nelson 1977-7-4 3614 Humboldt Along road N of Alder Springs. 1524 Comment
  UCSB13143  Hosackia crassifolia Breedlove, Dennis 1961-7-4 Humboldt 2.5 mi. E of the Mad River bridge on U.S. 299 426 Comment
  UCD106038  Hosackia gracilis W. A. Williams 1951-6-14 s.n. Humboldt 3 miles E of Hydesville, Bech Ranch swale. Comment
  JEPS121647  Hosackia pinnata Jennifer Buck, Danielle Roach 2009-8-21 Humboldt Mistletoe Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM07A Comment
  HSC39451  Hydrocotyle ranunculoides Linda M. Barker 1976-11-6 1704 Humboldt 3 mi W of Arcata Comment
  HSC39777  Hydrocotyle ranunculoides Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  HSC48869  Hydrophyllum occidentale Brad Klipfel 1973-6-10 51 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC70236  Hydrophyllum occidentale M. A. Baker 1980-6-8 1899 Humboldt Near Buck Flat. 1554 Comment
  UC24108  Hydrophyllum occidentale Mrs. Mary H. Manning Apr 1899 Humboldt Hoopa Valley Comment
  JEPS1642  Hydrophyllum tenuipes W. L. Jepson 1934-5-7 16691 Humboldt Bull Creek Comment
  CAS-BOT-BC401237  Hypericum perforatum Ira L. Wiggins 1930-7-22 4687 b Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  OBI37799  Hypericum perforatum David J. Keil 1983-7-1 17279 Humboldt 2.5 mi NE of Honeydew along Bull Crk Flats Rd Comment
  UC1004334  Hypericum perforatum W. L. Colwell 1954-11-20 19 Humboldt along Eel R. 3 mi. e. of S. Fork; Quadrangle 29B4, Eel R. 91 Comment
  UC164814  Hypochaeris glabra J. P. Tracy 1903-8-9 1947 Humboldt Eureka 0 Comment
  UC249878  Hypochaeris glabra Joseph P. Tracy 1924-5-17 6678 Humboldt at Eureka Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC311431  Hypochaeris radicata Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  UC166805  Hypochaeris radicata J. P. Tracy 1900-7-22 906 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC206850  Iliamna latibracteata Don Hagar 1957-6-20 L 10 Humboldt Cedar Creek Divide, 5.5 miles east of Willow Creek 1066 Comment
  SEINET5536070 Image available Impatiens glandulifera W. J. Ferlatte, B. D. Rogers 1966-1 3128 Humboldt Lampheres Garden Comment
  HSC13868  Iris douglasiana K. P. St. John 1965-4-3 9 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  JEPS542  Iris douglasiana W. L. Jepson 1932-8-9 16539 Humboldt Bull Creek 152 Comment
  SEINET4170691  Iris douglasiana Unknown 1924-5-25 Humboldt Big Lagoon. 8 Comment
  UC1103024  Iris douglasiana Joseph P. Tracy 1931-6-7 9574 Humboldt Eureka 30 Comment
  JEPS17227  Iris douglasiana Joseph P. Tracy 1939-6-17 16311 Humboldt vicinity Carlotta 30 Comment
  RSA254791  Iris douglasiana Thomas W. Nelson 1974-5-7 1240 Humboldt Beside the old Kneeland Rd. Comment
  CAS-BOT-BC123359  Iris humboldtiana Alice Eastwood; John Thomas Howell 1937-6-24 4857 Humboldt Road to Horse Mt. Comment
  UC1196376  Iris macrosiphon Joseph P. Tracy 1935-7-14 14067 Humboldt Grouse Mountain 1524 Comment
  HSC34873  Iris purdyi Thomas W. Nelson, James Nelson 1975-5-5 1780 Humboldt Beside Hwy. 101, 4 mi. S of Salmon Creek bridge Comment
  HSC66476  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-25 920 Humboldt On Eyesee Rd., 0.3 mi. N of Hwy. 96, Orleans Comment
  HSC70745  Iris tenuissima R. York 1980-5-17 519 Humboldt Near Le Perron Peak 792 Comment
  UC503070  Isoetes howellii Joseph P. Tracy 1930-6-15 8746 Humboldt Larrabee Creek near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  JEPS60151  Isoetes nuttallii Joseph P. Tracy 1935-5-25 13841 Humboldt Fort Seward 106 Comment
  HSC90644  Isolepis cernua Gail Newton 1982-5-2 2513 Humboldt Elk River Wildlife Area, Eureka Comment
  CHSC96435  Isolepis setacea Gordon Leppig 1999-10-3 1257 Humboldt Big Lagoon County Park, Big Lagoon Bog. NAD 27 UTM Zone 10, 405321E 4557202N. 3 Comment
  HSC48793  Isolepis setacea Brad Klipfel 1974-5-11 342 Humboldt SW side of Big Lagoon Comment
  BLMAR430  Jaumea carnosa Clara Sander 2004-8-30 430 Humboldt South Spit, 1.6km north on the south spit 3 Comment
  CAS-BOT-BC340156  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt Mouth of Eel River 3 Comment
  SEINET11261291  Jaumea carnosa C. C. Harris, S. K. Harris 1939-8-26 994 Humboldt South shore of Humboldt Bay.; 0 Comment
  UC2932  Juncus bolanderi State Survey June 1867 6584 Humboldt near Elk Ridge Comment
Read comments
Jul 31 2010
  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
  HSC44314  Juncus covillei Thomas W. Nelson, Jane Nelson 1977-8-6 3698 Humboldt Above Alder Spring 1616 Comment
  UC249813  Juncus covillei var. obtusatus Joseph P. Tracy with H. E. Parks 1924-8-3 6759 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC71730  Juncus effusus subsp. pacificus M. A. Baker 1980-6-26 2450 Humboldt Near Sims Creek 610 Comment
  HSC63875  Juncus ensifolius M. A. Baker 1979-6-29 961 Humboldt Hopkins Creek 750 Comment
  RSA53821  Juncus ensifolius Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek. Klamath River Canyon. Comment
  RSA168867  Juncus hesperius Joseph P. Tracy 1938-6-15 15938 Humboldt Carlotta. 61 Comment
  JEPS67119  Juncus kelloggii Joseph P. Tracy 1914-5-14 4431 Humboldt Fort Seward 121 Comment
  RSA730737  Juncus laccatus P. F. Zika 2007-7-30 23330 Humboldt Above E side of Route 101, at high point between Stone and Big Lagoons, (NCo, North Coast). 80 Comment
  HSC102129  Juncus parryi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1033 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1152087  Juncus phaeocephalus Joseph P. Tracy 1934-7-13 13391 Humboldt Dow's Prairie; sedge swamp 60 Comment
  UC717989  Juncus xiphioides David D. Keck 1944-7-11 5495 Humboldt Cape Mendocino 3 Comment
  CAS-BOT-BC235878  Keckiella corymbosa P. A. Munz 1936-8-9 14328 Humboldt Cliff, south fork of Eel River, 5 mi. north of Humboldt-Mendocino County-line Comment
  JEPS15153  Keckiella corymbosa H. L. Person 1932-7-31 Humboldt Korbel Eureka Quad. (Mad River, Camp 16) Comment
  RSA424319  Keckiella corymbosa Lester Rowntree 1931-7-21 s.n. Humboldt Mattole River Bridge 2 miles from Petrolia. Comment
  RSA424320  Keckiella corymbosa Unspecified 1920-7-15 s.n. Humboldt Arcata vicinity. Comment
  UC153388  Keckiella corymbosa P. E. Goddard 1906-6 635 Humboldt North Fork of Eel River Comment
  UC213499  Keckiella lemmonii Joseph P. Tracy 1920-8-15 5352 Humboldt mouth of Slate Creek (Klamath River); Northern Coast Ranges 152 Comment
  HSC76232  Kelloggia galioides Teresa Prendusi 1981-7-21 265 Humboldt Near Whiteys Peak 1646 Comment
  UC885732  Kickxia elatine Carl D. Duncan 1920-9-22 Humboldt Hoopa Valley Comment
  HSC73476  Koeleria macrantha Gail Newton 1980-7-11 1338 Humboldt Near Red Mtn. 1341 Comment
  JEPS13532  Kopsiopsis strobilacea Mrs. Virginia P. Fox July 1919 Humboldt Bald Mountain Comment
  UC1196121  Kopsiopsis strobilacea Joseph P. Tracy 1918-5-28 4936 Humboldt Northern Coast Ranges. High Prairie on Bald Mountain, High Prairie and Redwood Creek. Comment
  UC1239533  Lactuca serriola Joseph P. Tracy 1946-8-25 17650 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  RSA170204  Lapsana communis Joseph P. Tracy 1944-7-3 17482 Humboldt Graham's Peach Orchard. Trinity River Valley at Willow Creek. 152 Comment
  RSA167198  Lasthenia californica Joseph P. Tracy 1942-5-16 17357 Humboldt Near Garberville, on road to Harris, ! mile NE of town. 305 Comment
  UC1199124  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-19 10249 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC1223220  Lasthenia glaberrima Joseph P. Tracy 1951-6-21 19530 Humboldt back Everett Beck house (formerly George Gray's) (Hydesville); in bed of former Goose Lake, Hydesville Comment
  HSC99712  Lathyrus angulatus Glenn W. K. Shelton 2010-7-10 13 Humboldt W of Dinsmore, 0.9 mi. S of Hwy. 36 along FS Rd. 1N30, S side of road 747 Comment
  HSC40951  Lathyrus littoralis Linda M. Barker 1976-6-1 1560 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  POM277522  Lathyrus littoralis Lyman Benson 1928-7-10 s.n. Humboldt Clam Beach, Trinidad. 12 Comment
  HSC45332  Lathyrus littoralis R. York, Linda York 1978-4-1 100 Humboldt End of lighthouse Rd., 2 mi. SE of Petrolia. Comment
  RSA90281  Lathyrus littoralis F. W. Peirson 1923-7-11 3623 Humboldt 18 miles north of Eureka. Comment
  RSA168910  Lathyrus nevadensis subsp. nevadensis Joseph P. Tracy 1942-6-23 17226 Humboldt Trinity Summit Ridge top one mile west of Mud Springs. Comment
  HSC64214  Lathyrus nevadensis var. nevadensis J. O. Sawyer, M. A. Ericksen 1979-6-23 3387 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  RSA168907  Lathyrus vestitus subsp. bolanderi Joseph P. Tracy 1942-7-26 17298 Humboldt Valley of South Yager Creek. 610 Comment
  CDA24488  Laurus nobilis Gordon Leppig 2000-4-12 1289 Humboldt Arcata, 13th and Union. Comment
  CAS-BOT-BC325994  Layia carnosa David D. Keck; J. Clausen 1935-6-16 3381 Humboldt Mouth of Little River. Comment
  RSA0008480  Layia carnosa Jennifer Wheeler 2010-5-6 568 Humboldt West of Arcata, Samoa Peninsula outer Humboldt Bay north of Manila 0 Comment
  UC1223219  Layia gaillardioides Joseph P. Tracy 1950-6-8 187860 Humboldt Petrolia Comment
  UC1223218  Layia gaillardioides Joseph P. Tracy 1942-6-15 17165 Humboldt 5 mi n Garberville 60 Comment
  UC183700  Ledum glandulosum Joseph P. Tracy 1913-9-9 4399 Humboldt Patrick's Point; Northern Coast Ranges, Patrick's Point 30 Comment
  CAS-BOT-BC274330  Leersia oryzoides Henry M. Pollard 1947-8-7 s.n. Humboldt Klamath River's edge nr. woods on placer mine, Orleans region Comment
  UC249862  Leersia oryzoides Joseph P. Tracy 1924-8-31 6836 Humboldt Klamath River at Bluff Creek Bluff Creek; Northern Coast Ranges, Klamath River, Bluff Creek 91 Comment
  UC1103516  Lemna minuscula Joseph P. Tracy 1919-9-14 5212 Humboldt opposite Willow Creek (Lack Pond on Trinity River); Northern Coast Ranges, Trinity River, Lack Pond 152 Comment
  HSC67446  Leontodon saxatilis subsp. saxatilis J. P. Smith 1971-10-6 4959 Humboldt End of Murray Rd. in McKinleyville. Comment
  JEPS36508  Leontodon saxatilis subsp. saxatilis F. W. Peirson 1926-7-13 7056 Humboldt near Blue Lake; Mad River Comment
  OBI40320  Leontodon saxatilis subsp. saxatilis Ralph N. Philbrick 1974-8-28 s.n. Humboldt Behind sandy beach and road fill, Hwy 101, S of Orick Comment
  UC492269  Lepidium nitidum Joseph P. Tracy 1928-3-24 8407 Humboldt 3 mi s Point of Cape Mendocino; Northern Coast Ranges, Cape Mendocino 3 Comment
  HSC26269  Lepidium oblongum Thomas W. Nelson 1971-5-31 448 Humboldt 915 Comment
  HSC79379  Lepidium oxycarpum Kenneth Clark 1981-5-2 1362 Humboldt Point Delgada, Mario's Marina 15 Comment
  UC162613  Lepidium virginicum Harley P. Chandler Jun 1901 1461 Humboldt Klamath River North Coast Ranges 304 Comment
  UC195426  Lepidium virginicum Joseph P. Tracy 1915-9-12 4670 Humboldt opposite Laribee Creek; Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  HSC74229  Leptosiphon ciliatus M. A. Baker 1980-7-15 2958 Humboldt Near Whiting Ridge. 1341 Comment
  HSC17104  Leptosiphon harknessii J. P. Tracy, H. E. Parks 1934-6-27 11086 Humboldt Grouse Mtn. 1371 Comment
  CDA8182  Lessingia filaginifolia var. californica T. C. Fuller 1961-9-28 7048 Humboldt East of Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  HSC79326  Lessingia nemaclada D. K. Imper 1982-8-27 Humboldt 1.5 mi. S of junction with FS 2S05 on FS 8E05, Six Rivers National Forest. Comment
  UC205156  Lessingia nemaclada Joseph P. Tracy 1919-9-14 5211 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  SEINET11810782  Lessingia nemaclada var. mendocina H. P. Chandler 1901-1 1503 Humboldt Klamath River, North Coast Ranges 427 Comment
  CDA7526  Leucanthemum vulgare T. C. Fuller 1958-6-17 1832 Humboldt Freeway at Arcata. 0 Comment
  HSC3106  Leucojum aestivum M. S. Miller 1965-3-12 2 Humboldt Arcata, 317 Laurel Dr. Comment
  CAS-BOT-BC444059  Lewisia cotyledon var. howellii Lincoln Constance; Reed C. Rollins 1942-5-12 2885 Humboldt Klamath-Siskiyou Region. Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 152 Comment
  HSC98516  Lewisia triphylla C. Witte 2007-5-18 45 Humboldt Near Bottleneck Spring. 1575 Comment
  CAS-BOT-BC283513  Leymus X vancouverensis Joseph P. Tracy 1930-7-21 8894 Humboldt Cape Mendocino, near ocean shore S of point of the cape 30 Comment
  CAS-BOT-BC283515  Leymus X vancouverensis Malcom A. Nobs; S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, ca 2 miles N of Eureka Comment
  UC526794  Leymus mollis subsp. mollis Joseph P. Tracy 1927-5-1 7954 Humboldt sand dunes near Samoa (next to ocean); Northern Coast Ranges, Humboldt Bay 6 Comment
  HSC99548  Ligusticum apiifolium K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 213 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1197171  Ligusticum apiifolium Joseph P. Tracy 1918-9-8 5100 Humboldt at Eureka Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC436497  Ligusticum apiifolium Alice Eastwood; John Thomas Howell 1937-6-26 5073 Humboldt Near Berry Summit Comment
  JEPS14253  Ligusticum californicum Joseph P. Tracy 1937-8-12 15633 Humboldt Snow Camp 1402 Comment
Read comments
May 25 2012
  UC672870  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt back of Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  HSC63175  Lilium bolanderi M. A. Baker 1979-7-10 1021 Humboldt Comment
  UC175813  Lilium columbianum Joseph P. Tracy 1913-7-13 4356 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  UC55889  Lilium columbianum J. P. Tracy 1902-7-4 1755 Humboldt immediate vicinity Eureka (near Ryan's Slough Hill) 0 Comment
  UC1198234  Lilium pardalinum Joseph P. Tracy 1926-6-1 7552 Humboldt Eureka Northern Coast Ranges (in garden) Comment
  UC1198235  Lilium pardalinum Joseph P. Tracy 1924-7-4 6714 Humboldt Snow Camp; Northern Coast Ranges 1371 Comment
  HSC54016  Lilium pardalinum subsp. pardalinum Griswold, Butler 1979-7-12 7158 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC57160  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-26 9959 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  CAS-BOT-BC132962  Lilium rubescens Doris K. Kildale 1927-7-17 3748 Humboldt Bug Creek 792 Comment
  UC54669  Lilium rubescens Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UC13797  Lilium washingtonianum subsp. purpurascens Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  HSC99500  Lilium washingtonianum var. purpurascens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 160 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 Comment
  SEINET6950811  Limnanthes douglasii Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC1561269  Limnanthes douglasii subsp. nivea Barbara Ertter with Thomas J. Delendick 1987-5-16 6925 Humboldt just w Berry Summit (on Hwy 299, ca 15 air mi e of Arcata); Vista Point 914 Comment
  UC154019  Limonium californicum Joseph P. Tracy 1901-8-7 1254 Humboldt Samoa Northern Coast Region, Region about Humboldt Bay (salt marsh) 0 Comment
  UC54709  Linanthus androsaceus Joseph Burtt Davy and Walter C. Blasdale 1899-5 5371 Humboldt near Harris Comment
  JEPS58246  Linanthus bicolor Lincoln Constance 1934-6-4 816 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region Comment
  HSC76247  Linnaea borealis subsp. longiflora Teresa Prendusi 1981-7-7 122 Humboldt Near Slate Creek Butte. 1158 Comment
  HSC99851  Linnaea borealis subsp. longiflora T. Jimerson, J. Pageau 1979-6-12 533 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  JEPS12691  Linnaea borealis var. longiflora W. L. Jepson Jul 16 1902-Jul 23 1902 Humboldt Hupa Trail Trinity Summit; , Hupa Trail 2133 Comment
  SEINET10634291  Linum Daniel K. Harder 1994-10-4 Harder 2493 Humboldt Ca. 6 km W/SW of Fort Seward along Fort Seward Road along middle ridge (near powerlines), collections from rock outcrops in cattle pasture with islands of redwoods and Umbellaria; near small spring in hillside. 570 Comment
  RSA505340  Linum angustifolium Barbara Ertter, Thomas Delendick 1987-5-16 6911 Humboldt Hwy 299, ca 8 mi E of Arcata, 9.5 mi W of Lord Ellis summit. Comment
  HSC46136  Linum bienne J. P. Smith 1971-10-6 4964 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC15801  Linum bienne Francis Winter 1960-4-24 Humboldt 1 mi. N of Redwood Creek Ranch 396 Comment
  HSC74730  Listera convallarioides Gail Newton 1981-7-24 2321 Humboldt Near Bug Creek Butte 1417 Comment
  UC1103025  Listera cordata Joseph P. Tracy 1929-4-29 8557 Humboldt Berry's North Coast Ranges, Redwood Creek 274 Comment
  RSA697655  Lithocarpus densiflorus var. densiflorus Unspecified 1936-09 s.n. Humboldt Richardson's Grove (State Park). Comment
  UC1225788  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-9-20 18224 Humboldt Willow Creek Canyon; along Trinity Highway 457 Comment
  UC1196492  Lithophragma affine Joseph P. Tracy 1918-5-26 4944 Humboldt lower foothills towards Redwood Creek Grouse Mt.; Northern Coast Ranges, , towards Redwood Creek 762 Comment
  HSC102632  Lithophragma campanulatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1617 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC11920  Lithophragma glabrum J. Burtt Davy 1899-6-23 5795 Humboldt Trinity Summit; North Coast Ranges, Trinity Summit 2133 Comment
  HSC75460  Lithophragma heterophyllum J. O. Sawyer 1980-7-18 3581 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC77904  Logfia gallica L. P. Janeway, Paul Wilson 1984-5-25 826 Humboldt On the N Spit of Humboldt Bay; on BLM lands near the Coast Guard Station 5 Comment
  UC50707  Lolium multiflorum Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5606 B Humboldt Arcata Comment
  UC50705  Lolium perenne J. Burtt Davy 1899-6-18 5518 Humboldt Pepperwood bottoms; North Coast Ranges, Pepperwood bottoms Comment
  UC50694  Lolium temulentum Joseph Burtt Davy 1899-6-20 5690 Humboldt Hupa Valley Comment
  HSC24400  Lomatium dasycarpum subsp. dasycarpum J. O. Sawyer 1970-6-24 2223 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC21254  Lomatium dasycarpum subsp. dasycarpum Harley P. Chandler June, 1901 1445 Humboldt North Coast Ranges, Klamath R. Comment
  UC906634  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1947-7-5 17779 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC32153  Lomatium macrocarpum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5601 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 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
  HSC32228  Lomatium triternatum var. triternatum J. O. Sawyer 1970-6-24 2227 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC102012  Lonicera conjugialis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 913 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  BLMAR175  Lonicera hispidula Donald Hazlett 1994-6-7 175 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC240470  Lonicera hispidula Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC240474  Lonicera hispidula A. A. Heller 1923-7-10 13799 Humboldt Along a small stream emptying into the Eel River between Scotia and Pepperwood Comment
  CAS-BOT-BC240479  Lonicera hispidula Carl B. Wolf 1927-8-28 1164 Humboldt Hoopa [Hupa Valley] Indian Reservation, on the Trinity River, 8 mi. from Weitchpec Comment
  RSA65775  Lonicera hispidula var. vacillans E. K. Balls, P. C. Everett 1953-10-11 18625 Humboldt 0.1 mi. N of Humbolt-Mendecino Co. line, Hwy 101. 168 Comment
  UC35427  Lonicera hispidula var. vacillans Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  SEINET10745663  Lonicera hispidula var. vacillans J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13012 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  CHSC11388  Lonicera involucrata var. ledebourii Lowell Ahart 1968-5-31 Humboldt Patrick's Point State Park. 30 Comment
  HSC31630  Lonicera involucrata var. ledebourii Glenn McGourty 1974-8-27 16 Humboldt About 1 mi. from Capetown bridge. Comment
  HSC31654  Lonicera involucrata var. ledebourii Timothy B. Devine 1974-5-4 326 Humboldt Mad River floodplain 1 mi. from Blue Lake on Hatchery Rd. 305 Comment
  SBBG52990  Lotus J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, Loleta, 10 mi S of Eureka Comment
  SEINET5736925 Image available Lotus Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6108 Humboldt From California 299 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to another fork in the road. Take the right fork (away from the road leading to Waterman Ridge and Willow Creek). On this road (7NO4), travel 4.5 miles to collection site. Comment
  UC179940  Lotus aboriginus Joseph P. Tracy 1914-9-6 4599 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC90323  Lotus corniculatus Jean Hanson 1980-6-22 106 Humboldt Indian (Gunther) Island, Humboldt Bay, City of Eureka. W end of Island in mud between dikes. Comment
  CDA27196  Lotus denticulatus T. R. Haig 1960-6-16 Humboldt 1 mile west of Bridgeville. 0 Comment
  RSA168888  Lotus denticulatus Joseph P. Tracy 1933-6-25 12625 Humboldt Eel River Bar at Camp Grant 3 miles above junction of the South Fork. Comment
  UC169330  Lotus humistratus Joseph P. Tracy 1912-7-26 3833 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  SEINET6932529  Lotus humistratus Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt About 4 miles southeast of Kneeland. Comment
  UC1223424  Lotus pinnatus Joseph P. Tracy 1942-6-15 17134 Humboldt Englewood Prairie Comment
  UC1129022  Lotus purshianus var. purshianus H. L. Person 1932-7-18 Humboldt Freshwater Eureka Quad. Comment
  HSC35860  Lotus unifoliolatus var. unifoliolatus Thomas W. Nelson, James Nelson 1975-8-5 2134 Humboldt Along S spit to Humboldt Bay Comment
  HSC40946  Lotus unifoliolatus var. unifoliolatus Linda M. Barker 1976-6-1 1548 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CAS-BOT-BC342555  Luina hypoleuca L. B. Kildale 1930-7-7 10262 Humboldt Chaparall [Chaparral] Mt at Bug Creek 914 Comment
  UC1223212  Luina hypoleuca Joseph P. Tracy 1944-8-13 17489 Humboldt near Romanzoffia Creek (along Trinity Highway); Willow Creek Canyon 365 Comment
  SEINET5766215 Image available Lupinus N. H. Russell 1967-6-16 67 -11 Humboldt Clam Beach County Park, about 10 miles north of Eureka Comment
  UC1925864  Lupinus Kay H. Beach 1940-5-5 479 Humboldt along north coast, N of Eureka. Comment
  UC503010  Lupinus affinis Joseph P. Tracy 1932-5-1 9877 Humboldt vicinity Garberville; Northern Coast Ranges, vicinity of Garberville 121 Comment
  HSC98761  Lupinus albifrons var. collinus Cara Witte 2008-7-2 819 Humboldt Board Camp Mountain/ Tri Board Camp. Forest Service Road 4N38. 1577 Comment
  HSC32158  Lupinus andersonii J. O. Sawyer 1970-6-24 2233 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  SEINET202282  Lupinus andersonii Joseph P. Tracy 1949-6-25 18340 Humboldt At Bigh Hill on road west of Box Camp, west slope of summit. Comment
  UC1197255  Lupinus arboreus J. P. Tracy 1912-3-31 3566 Humboldt Blue Lake 30 Comment
  HSC31789  Lupinus bicolor Donald Spalinger 1974-4-25 25 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  HSC47063  Lupinus bicolor J. P. Smith, Thomas W. Nelson 1977-6-30 9198 Humboldt Samoa Peninsula just E of the drag strip. Comment
  UC161547  Lupinus bicolor Joseph P. Tracy 1911-6-25 3251 Humboldt Bucksport , region about Humboldt Bay (Northern Coast Region) 0 Comment
  HSC45091  Lupinus bicolor R. Sutherland 1978-4-23 1 .23478 Humboldt Head of Kinsey (Fraser) Ridge 716 Comment
  JEPS65284  Lupinus latifolius Joseph P. Tracy 1923-6-25 6376 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  HSC63290  Lupinus latifolius subsp. viridifolius M. A. Baker 1979-6-27 938 Humboldt Jct. of Tish Tang A Tang Creek and trail through Grogan's Hole Comment
  HSC97959  Lupinus latifolius subsp. viridifolius Cara Witte 2007-6-21 323 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  UC170164  Lupinus littoralis Joseph P. Tracy 1912-7-7 3745 Humboldt near mouth Elk River; Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC41636  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson 1977-6-19 3511 Humboldt Along rd. to Pine Mtn. SW of Alder Springs 1494 Comment
  RSA0084061  Lupinus obtusilobus Jane P. Nelson 1974-5-27 1318 Humboldt Mendocine National Forest near Mendocino Pass. 1524 Comment
  RSA21084  Lupinus rivularis Carl B. Wolf 1937-6-19 8912 Humboldt Van Duzen River, 3/10 mi. above Bridgeville. 122 Comment
  HSC58566  Lupinus tracyi G. L. Clifton, Griswold 1979-7-26 10197 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  HSC58244  Luzula comosa G. L. Clifton, Griswold 1979-8-2 12415 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC75476  Luzula comosa J. O. Sawyer 1980-7-18 3623 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC98044  Luzula comosa Cara Witte 2007-5-31 163 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  HSC45019  Luzula comosa R. Sutherland 1978-4-23 12 .23478 Humboldt Telegraph Ridge just NW of Green Ridge 695 Comment
  CHSC118269  Luzula macrantha Peter F. Zika 2011-7-3 25499 Humboldt Titlow Hill Road, 4.2 road miles SE of Route 299 at Berry Summit, 0.8 air km SSW of Horse Mountain. Outer North Coast Ranges (NCoRO). 1390 Comment
  UC249818  Luzula macrantha Joseph P. Tracy 1924-3-30 6630 Humboldt Northern Coast Ranges. Near Bridgeville 182 Comment
  HSC39164  Luzula parviflora D. E. Anderson, J. P. Smith 1971-6-28 - 1239 Humboldt Along Mad River, 2 mi. S of Blue Lake Comment
  UC1056033  Luzula parviflora H. E. and S. T. Parks June 1952 22446 Humboldt Bishop Pine Lodge Trinidad, Bishop Pine Lodge Comment
  SEINET8717658 Image available Luzula parviflora H. E. Parks, S. T. Parks 1952-1 22446 Humboldt Bishop Pine Lodge. Trinidad. Comment
  HSC95519  Lycopodium clavatum Gordon Leppig 2004-2-3 2130 Humboldt Pacific Lumber Co. land, NE edge of THP 1-00-032. 300 Comment
  JEPS86070  Lycopodium clavatum Wayne Roderick 1966-8-8 Humboldt Georgia-Pacific property near Big Lagoon Comment
  OBI1067  Lycopodium clavatum Lawrence L. Kiefer 1964-5-20 1435 Humboldt Near Trinidad, one mile E of Moonstone Beach on Kuntz property 91 Comment
  CHSC2104  Lysichiton americanus M. Anthony 1960-5-14 Humboldt N. coastal. Comment
  UCR179284  Lysichiton americanus R. G. Swinney 1968-3-29 238 Humboldt East of Humboldt State College, Arcata 152 Comment
  SEINET11261198  Lythrum hyssopifolia Rick Lundquist 1979-5-18 100 Humboldt Arcata South Quadrangle. South G Street ca 1 mile south of Samoa Boulevard.; 0 0 Comment
  HSC78755  Lythrum hyssopifolia L. P. Janeway, Paul Wilson 1984-5-25 821 Humboldt N Spit of Humboldt Bay; BLM lands near the Coast Guard Station 5 Comment
  HSC60076  Madia elegans M. A. Baker 1978-5-6 499 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  CAS-BOT-BC342801  Madia elegans Ella Dales Cantelow 1938-10-26 2182 Humboldt Near Red Cap Creek, s.w. of Orleans Comment
  SEINET11810578  Madia elegans L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  POM161463  Madia elegans subsp. elegans Joseph P. Tracy 2683 Humboldt Hillside near bridge across Little Va Duzen, northwest slope of Buck Mountain 762 Comment
  CAS-BOT-BC344357  Madia exigua L. R. Abrams 1916-7-11 5995 Humboldt Between Blocksberg & Bridgeville Comment
  CAS-BOT-BC343014  Madia gracilis Alice Eastwood; John Thomas Howell 1937-6-23 4755 Humboldt Dinsmores Comment
  CAS-BOT-BC343019  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  CAS-BOT-BC343031  Madia gracilis David D. Keck 1944-7-11 5500 Humboldt Halfway between Upper Mattole and Honeydew, 12.3 miles S.E. of Petrolia, Mattole River 121 Comment
  JEPS40214  Madia gracilis Joseph P. Tracy 1927-7-4 8229 Humboldt at the crossing of Kneeland Road Northern Coast Ranges, Lawrence Creek 609 Comment
  UC165190  Madia gracilis Joseph P. Tracy 1911-6-25 3250 Humboldt at Bucksport; Eureka 0 Comment
  UC1069897  Madia sativa H. L. Person 1932-8-15 Humboldt Korbel Eureka Quadrangle Comment
  HSC99086  Mahonia pinnata subsp. pinnata Cara Witte 2008-9-13 1034 Humboldt Intersection of National Forest 1 and Forest Service Road 5N27. Entrance to Cold Spring. 1476 Comment
  UC13726  Maianthemum dilatatum W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  UC212989  Maianthemum dilatatum Joseph P. Tracy 1920-4-25 5316 Humboldt at Eureka Northern Coast Ranges, Eureka 0 Comment
  RSA246767  Maianthemum dilatatum Robert F. Thorne, Percy C. Everett 1965-8-7 35178 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  SEINET12050376  Maianthemum dilatatum F. H. Utech 1988-1 88 -272 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  HSC70565  Maianthemum racemosum subsp. amplexicaule M. A. Baker 1980-7-23 3186 Humboldt Near Orleans Mtn. 1859 Comment
  UC127825  Malacothrix floccifera Harley P. Chandler June, 1901 1360 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC275344  Malva parviflora Joseph P. Tracy 1924-10-19 6928 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC7031  Marah oregana R. D. Zortman 1963-5-15 47 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  UCR51832  Marah oregana J. D. Ackerman 1975-6-10 451 Humboldt Humboldt Bay, c. 1 mi. north of Samoa bridge turnoff from Samoa Blvd., south of Manila Comment
  HSC7035  Marah oregana D. E. Anderson 1962-3-31 1952 Humboldt Coastal area of Prairie Creek State Park Comment
  HSC39795  Matricaria discoidea Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  HSC100443  Matricaria discoidea Carl C. Marshall May 1886 215 Humboldt Roadsides, etc. Humboldt Bay. Comment
  RSA183519  Matricaria matricarioides D. W. Pierson 1966-5-12 39 Humboldt 1.5 miles east of Light House on Table Bluff road Comment
  UC1197432  Medicago lupulina Joseph P. Tracy 1915-7-25 4662 Humboldt Eureka Northern Coast Region 0 Comment
  HSC14985  Medicago polymorpha N. R. Waite 1965-5-19 38 Humboldt W edge of Humboldt State University campus. Comment
  HSC15527  Medicago polymorpha J. Lackey 1971-3-28 10 Humboldt 3 mi. S of Cape Mendocino on Capetown Rd. Comment
  HSC1869  Medicago polymorpha P. W. Shields 1956-4-14 Humboldt HSU campus Comment
  CAS-BOT-BC269349  Melica californica Joseph P. Tracy 1927-5-14 7999 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 182 Comment
  RSA152371  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCD66181  Melica californica D. W. Cooper 1956-6-5 s.n. Humboldt Upper Mattole area. Benbow Ranch, Ettersburg. Comment
  HSC40310  Melica fugax Thomas W. Nelson, Jane P. Nelson 1976-6-22 2859 Humboldt Bog along road to Goat Hill. 1646 Comment
  HSC101165  Melica harfordii Dana York, Kim Hayler 2012-5-18 3105 Humboldt Six Rivers National Forest, near Somes Bar, 585 meters SE of the confluence of the Klamath and Salmon Rivers, E and above Hwy. 96. 213 Comment
  HSC71167  Melica harfordii Thomas W. Nelson 1977-5-30 3413 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  CAS-BOT-BC262471  Melica subulata Joseph P. Tracy 1933-7-26 12910 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  JEPS79932  Melilotus albus Joseph P. Tracy 1938-7-15 16081 Humboldt Van Duzen Eel River (gravel bar at mouth) 15 Comment
  HSC26919  Melilotus albus Brad Klipfel 1973-7-30 218 Humboldt Samoa Rd., near Mad River Slough Comment
  HSC37918  Mentha pulegium Peter Sorensen 1976-7-15 Humboldt Humboldt Bay, Woodley Island Comment
  UCD125120  Mentha pulegium Joseph P. Tracy 1946-8-25 17642 Humboldt Grizzly Buff. Along Eel River. 18 Comment
  UCD117673  Menziesia ferruginea T. I. Storer 1931-7-1 2251 Humboldt Coast. Comment
  BLMAR115  Micranthes californica Jennifer Anthony-Wheeler 1995-3-15 115 Humboldt King range, growing on N.end of campground shaded under white oak 121 Comment
  UC88381  Micropus californicus var. californicus W. W. Price 1890-6-30 Humboldt Mad River Comment
  HSC102916  Microseris M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1087 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC322680  Microseris laciniata Volney Rattan 1879-6-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC322684  Microseris laciniata Lincoln Constance 1934-5-24 624 Humboldt S. slope of Lower Look Prairie, South Fork Eel River 182 Comment
  HSC102528  Microsteris gracilis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1515 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC20692  Mimulus aurantiacus var. aurantiacus D. E. Anderson 1961-8-25 1755 Humboldt 1.5 miles S of Trinidad. overlooking beach Comment
  UC1196802  Mimulus breweri Joseph P. Tracy 1933-7-26 12920 Humboldt Grouse Mountain North Coast Ranges 1615 Comment
  HSC40847  Mimulus breweri Thomas W. Nelson 1976-7-9 3003 Humboldt W side of ridge S of E peak of Mount Lassic group 1524 Comment
  HSC12696  Mimulus dentatus Jana Kattenhorn 1970-10-28 153 Humboldt Mad River at the mouth of Lindsey Creek. North Bank Rd. off Hwy. 299 Comment
  HSC20708  Mimulus dentatus Jack Rockwell 1962-5-5 58 Humboldt W side Jacoby Creek 18 Comment
  POM90457  Mimulus guttatus Joseph P. Tracy 1920-5-18 5329 Humboldt South Fork Eel River, 4 miles above Dyerville. Along Eel River from South Fork to Scotia. 61 Comment
  RSA167241  Mimulus guttatus Joseph P. Tracy 1950-6-8 18745 Humboldt Near Capetown. Cape Ridge. One mile east of Cape Mendocino. 152 Comment
  UC673101  Mimulus guttatus Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16661 Humboldt head Willow Creek; Trinity Highway 762 Comment
  RSA15548  Mimulus moschatus Carl B. Wolf 1927-8-30 1257 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  RSA80459  Mimulus moschatus var. sessilifolius F. W. Peirson 1926-7-12 7038 Humboldt Orick. Comment
  HSC74453  Mimulus nanus var. nanus Gail Newton 1980-8-10 1994 Humboldt Near Blake Mtn. 1798 Comment
  UC582596  Mimulus nanus var. nanus Joseph P. Tracy 1937-7-29 15570 Humboldt halfway between Cold Springs and Blake Lookout; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC72697  Mimulus pulsiferae Gail Newton 1980-6-24 583 Humboldt Near Ladder Rock 1570 Comment
  JEPS28974  Mimulus pulsiferae Joseph T. Gregory 1933-7-25 473 Humboldt Titlow Mt. 1371 Comment
  UC1103542  Minuartia californica Joseph P. Tracy 1925-5-30 7033 Humboldt Larribee Valley Northern Coast Ranges 701 Comment
  UC229832  Minuartia cismontana Joseph P. Tracy 1921-5-30 5479 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC71675  Minuartia douglasii M. A. Baker 1980-6-26 2392 Humboldt Near Sims Creek 610 Comment
  RSA249438  Minuartia nuttallii subsp. gregaria D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5605 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC161043  Minuartia pusilla Joseph P. Tracy 1910-4-24 3130 Humboldt Humboldt Bay Northern Coast Region (sand dunes at ocean beach) Comment
  UC154085  Mitella ovalis Joseph P. Tracy 1901-4-26 1049 Humboldt Humboldt Hill Northern Coast Region, Region about Humboldt Bay 0 Comment
  UC492220  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC36497  Moehringia macrophylla Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1894 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC72792  Moehringia macrophylla M. A. Baker 1980-6-16 1931 Humboldt Near Monks Camp 109 Comment
  HSC99385  Moehringia macrophylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 34 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC8146  Moehringia macrophylla Harley P. Chandler June, 1901 1284 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  UC13618  Moehringia macrophylla J. Burtt Davy 1899-6-18 5619 Humboldt back Korbel (Bald Mt.); North Coast Ranges, , back of Korbel Comment
  UCD63139  Moehringia macrophylla Heather Mehl 2008-4-15 s.n. Humboldt California. Humboldt County: Redwood National Park, 11 miles east of Hwy 101 on Bald Hills Road. 640 Comment
  HSC76524  Monardella odoratissima Teresa Prendusi 1981-7-21 273 Humboldt Near Whiteys Peak 1646 Comment
  HSC48699  Monardella odoratissima subsp. pallida Brad Klipfel 1973-7-31 239 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  POM283164  Monardella villosa Lyman Benson 1928-7-12 476 Humboldt Weott Ranger Station. 61 Comment
  RSA0017594  Monardella villosa subsp. subserrata Marcus E. Jones 1931-7-16 s.n. Humboldt Junction, East of Arcata. Comment
  UC1225848  Monardella villosa subsp. villosa Joseph P. Tracy 1947-7-5 17782 Humboldt Trinity Summit, ridge top one mile west of Mud Springs. 1158 Comment
  UC1409015  Monotropa hypopitys Robert F. Thorne and P. Everett 1965-8-5 35132 a Humboldt Wailaki Recreation Site 609 Comment
  RSA264852  Montia diffusa Lincoln Constance, A. A. Beetle 1940-5-17 2615 Humboldt In Shade of Cornus and Sambucus, cutover Pseudotsuga forest. Above Van Duzen River, 1 mile below Dinsmore s 762 Comment
  UC1223246  Montia diffusa Joseph P. Tracy 1950-5-7 18652 Humboldt road to South Yager Valley is 5 mi n of Bridgeville (Valley of South Yager Creek); Valley of South Yager Creek 762 Comment
  UC162352  Montia fontana Joseph P. Tracy 1904-4-3 2004 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC445158  Montia parvifolia W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  JEPS43174  Montia parvifolia Milo S. Baker 1923-7-31 143 Humboldt Butte's Run; North Coast, Butte's Run Comment
  HSC44168  Muhlenbergia filiformis Thomas W. Nelson, Jane P. Nelson 1977-9-3 3738 Humboldt Head of Bear Creek 1585 Comment
  SEINET200835 Image available Muhlenbergia filiformis Joseph P. Tracy 1919-9-18 5233 Humboldt Trinity Summit 1829 Comment
  UC552838  Myosotis discolor Joseph P. Tracy 1935-5-25 13847 Humboldt Fort Seward North Coast Ranges, Fort Seward 106 Comment
  HSC63980  Myosotis sylvatica J. P. Smith 1973-5-26 6855 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  CAS-BOT-BC101668  Myrica californica Doris K. Kildale 1926-3-20 1551 Humboldt Big Lagoon Comment
  RSA461902  Myrica californica H. E. McMinn 1931-6-28 2456 Humboldt Orick to Requa Comment
  HSC77870  Myriophyllum sibiricum Richard K. Willis 1973-9-19 731019 .1 Humboldt Fish Lake 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
  UC1173635  Narthecium californicum Joseph P. Tracy 1930-7-17 9003 Humboldt meadow at McKay Camp (S. Fork Mt.); S. Fork Mt. 1676 Comment
  RSA10034  Nassella lepida Joseph P. Tracy 1933-5-20 12247 Humboldt Mattole Valley, near Petrolia 152 Comment
  UC181244  Nassella pulchra Joseph P. Tracy 1914-5-14 4448 Humboldt Fort Seward Northern Coast Ranges (slopes) 121 Comment
  HSC6893  Nasturtium officinale P. W. Shields 1955-6-16 Humboldt HSU campus Comment
  HSC53978  Navarretia capillaris Griswold, Butler 1979-7-11 7052 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC98609  Navarretia divaricata subsp. divaricata Cara Witte 2008-6-27 759 Humboldt Approximately 2 miles north-east of intersection 5N09 and Friday Ridge Rd. 1565 Comment
  UC133661  Navarretia divaricata subsp. vividior Joseph P. Tracy 1908-6 2721 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC52826  Navarretia divaricata subsp. vividior Chesnut and Drew 1888-7-23 Humboldt Hyampum Comment
  UC582694  Navarretia intertexta Joseph P. Tracy 1937-6-26 15363 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS70337  Navarretia intertexta W. L. Jepson 1902-6-25 1943 Humboldt Green Point Ranch Redwood Creek Comment
  JEPS79938  Navarretia intertexta subsp. intertexta Joseph P. Tracy 1938-7-5 16012 Humboldt open flat by old Strong's District School House (5 mi e of town); Carlotta 45 Comment
  SEINET12279161  Navarretia pubescens J. P. Tracy 1950-1 18861 Humboldt Dobbyn Creek, 3 mi NE of Alderpoint 213 Comment
  UC1198527  Navarretia squarrosa Joseph P. Tracy 1927-8-7 8328 Humboldt Willow Creek Trinity River Valley 152 Comment
  SEINET200629  Navarretia tagetina Joseph P. Tracy 1906-7-19 4709 Humboldt Bosworths, on Laribee Creek. 457 Comment
  HSC100628  Neillia opulifolia Carl C. Marshall Apr 1885 52 Humboldt Streams etc. near coast. Comment
  HSC39198  Nemophila menziesii var. atomaria D. E. Anderson, J. P. Smith 1971-7-6 - 1326 Humboldt 1.0 mi. W of Pine Ridge Summit, 6 mi. E of junction with Redwood Valley Rd. Comment
  UCSB29347  Nemophila menziesii var. atomaria Phelps, M. 1972-3-20 Humboldt 0.6 mi. along Black Sands Rd. from Shelter Cove Rd. junction; Shelter Cove 24 Comment
  HSC58023  Nemophila parviflora G. L. Clifton 1979-7-31 11829 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC219410  Nemophila parviflora Alice Eastwood; John Thomas Howell 1937-6-24 4864 Humboldt Road to Horse Mt. Comment
  UC162684  Nicotiana quadrivalvis Joseph P. Tracy 1911-7-10 3500 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC8072  Notholithocarpus densiflorus H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC43110  Notholithocarpus densiflorus var. densiflorus Thomas W. Nelson, Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland, E side of junction of Kneeland and Maple Creek roads 671 Comment
  HSC41314  Notholithocarpus densiflorus var. echinoides Brad Klipfel 1974-9-2 541 Humboldt Horse Mountain Comment
  CAS-BOT-BC400077  Nuphar polysepala Carl B. Wolf 1937-9-9 9309 Humboldt 1 mi. So. of Capetown on road to Cape Mendocino 91 Comment
  HSC59483  Nuttallanthus texanus M. A. Ericksen 1979-4-29 242 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  HSC59108  Nuttallanthus texanus M. A. Baker 1978-5-6 481 Humboldt 2 km. S of Weitchpec Comment
  HSC100629  Nuttallia cerasiformis Carl C. Marshall Apr 1886 161 Humboldt Near Humboldt Bay. Comment
  CAS-BOT-BC142300  Oemleria cerasiformis C. Hart Merriam 1918-8-11 s.n. Humboldt Blue Lake Comment
  UC154281  Oemleria cerasiformis Mrs. Harriet Tracy 1909-3-5 Humboldt near Hydesville; Northern Coast Region 60 Comment
  SEINET11915945  Oemleria cerasiformis J. P. Tracy 1950-1 18618 Humboldt 2 mi W of Dinsmore's, Buck Mountain, lower foothills of its NW slope 762 Comment
  HSC97444  Oenanthe sarmentosa Ivy Watson 2008-9-28 27 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  UC1400343  Oenanthe sarmentosa Robert F. Thorne and P. Everett 1965-8-7 35212 Humboldt Samoa Peninsula Comment
  CHSC70153  Oenothera glazioviana David K. Imper 1987-7-14 Humboldt South of Trinidad, waste area behind Matson home, just E. of US 101 near Moonstone Beach Exit. Comment
  UC1196382  Olsynium douglasii var. douglasii Joseph P. Tracy 1913-5-4 4052 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC349968  Oreostemma alpigenum var. andersonii Doris Kildale 1931-5-10 10673 Humboldt Snow Camp Comment
  RSA0070495  Orobanche californica subsp. californica Edward Lee 1934-8-17 1152 Humboldt East shore of Big Lagoon, 35 miles north of Eureka. 3 Comment
  UC1197450  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1908-6 2881 Humboldt Valley of Van Duzen River, opposite Buck Mountain. Comment
  UC906645  Orogenia fusiformis Joseph P. Tracy 1942-6-23 17252 Humboldt near top Trinity Summit (w. of Water-Dog Lakes) 1828 Comment
  HSC48857  Orthilia secunda Brad Klipfel 1973-7-15 200 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 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
  HSC56304  Osmorhiza berteroi Overton, Butler 1979-8-2 12611 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC21582  Osmorhiza berteroi John A. DuBois 1962-5-23 29 Humboldt 19 mi. E of Arcata Comment
  HSC71714  Osmorhiza purpurea M. A. Baker 1980-6-26 2435 Humboldt Near Sims Creek 610 Comment
  UC203876  Oxalis albicans subsp. pilosa Joseph P. Tracy 1918-11-17 5119 Humboldt Elk River Corners Northern Coast Ranges Comment
  HSC33742  Oxalis articulata subsp. rubra John Palmer 1975-5-24 374 Humboldt Samoa Dunes, off Samoa Blvd. across from the boat landing Comment
  HSC42787  Oxalis oregana Rick Cooper 1977-4-23 12 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC75416  Oxalis oregana J. O. Sawyer, M. A. Erickson 1979-7-15 3415 Humboldt Adroni Research Natural Area, slopes along Aikins Creek 457 Comment
  JEPS43138  Oxalis oregana W. L. Jepson 1934-5-7 16696 Humboldt Bull Creek Comment
  SBBG25583  Oxalis oregana E. R. Blakley 1966-8-17 6794 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  UC14238  Oxalis oregana Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  JEPS43139  Oxalis oregana W. L. Jepson 1932-7-28 16432 Humboldt Bull Creek Flat Comment
  SD64137  Oxalis oregana W. Bertsch 1953-7-30 223 Humboldt Redwoods-Dyerville Highway 101. 60 Comment
  SD90203  Oxalis oregana Benjamin C. Stone 1952-6-20 113 Humboldt Holmes, on Highway 101 by Founders, Tree. Comment
  UC39291  Panicum acuminatum var. acuminatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5894 Humboldt near Martin's Ferry (North-Western California); near Martin's Ferry Comment
  HSC10489  Panicum acuminatum var. fasciculatum J. P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek. Comment
  RSA10050  Panicum capillare Joseph P. Tracy 1930-10-12 9207 Humboldt Eel River, Alton to Fortuna Comment
Read comments
Oct 2 2011
  SEINET200951 Image available Panicum capillare Joeseph P. Tracy, A. S. Hitchcock 1908-7-30 2929 Humboldt Valley of van Duzen River Opposite Buck mountain. Comment
  UCD89768  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1939-4-29 16246 Humboldt Klamath River, near Slate Creek. 8 miles below Orleans. 121 Comment
  HSC23305  Papaver somniferum W. Wood Oct 1971 Humboldt McKinleyville Comment
  SEINET182648 Image available Parapholis incurva S. K. Harris, J. P. Tracy 1936-6-6 3218 Humboldt Eureka, California Comment
  HSC39757  Parapholis strigosa Peter Sorensen 1976-7-11 Humboldt Woodley Island. Comment
  HSC10525  Paspalum distichum Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  RSA44543  Paspalum distichum Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  UC249858  Paspalum distichum Joseph P. Tracy with H. E. Parks 1924-8-3 6779 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  UC525569  Pectocarya penicillata Joseph P. Tracy 1926-5-2 7418 Humboldt near South fork; Northern Coast Rangers, Trinity Valley River Comment
  HSC20922  Pedicularis densiflora P. W. Shields May 1955 Humboldt 5 mi. W of Willow Creek Comment
  UC1173740  Pellaea brachyptera Joseph P. Tracy 1939-8-16 16423 Humboldt Grouse Mt 1524 Comment
  HSC44545  Penstemon anguineus Brad Klipfel 1973-7-15 164 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56111  Penstemon anguineus G. L. Clifton 1979-7-31 11873 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC74185  Penstemon anguineus M. A. Baker 1980-7-23 3138 Humboldt Near Orleans Mtn. 1859 Comment
  BLMAR247  Penstemon anguineus Jennifer Anthony-Wheeler 1997-7-24 247 Humboldt Lacks Creek, growing NE of parking landing among regenerating forest 1219 Comment
  HSC40011  Penstemon anguineus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2907 Humboldt E side of Red Lassic, beside FS Rd. 1S07 1677 Comment
  HSC63803  Penstemon anguineus M. A. Baker 1979-6-7 798 Humboldt Along road to Telescope Peak next to stream between Telescope Peak and Snow Mtn. 915 Comment
  RSA167237  Penstemon heterophyllus subsp. purdyi Joseph P. Tracy 1950-6-15 18782 Humboldt At the Jenk's Ranch, where not over sheeped, 7 miles N of Harris. Comment
  JEPS28976  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16544 Humboldt Garberville Garberville (along river) 152 Comment
  UC902217  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1942-7-2 17369 Humboldt opposite Buck Mountain (Dinsmore's); along Van Duzen River, Dinsmore's 762 Comment
  HSC74399  Penstemon laetus subsp. sagittatus Gail Newton 1980-6-28 731 Humboldt Near Mad River Butte. 1536 Comment
  NY130492  Penstemon rattanii V. Rattan 06 1879 58 Humboldt 792.5 Comment
  UC1222945  Pentachaeta alsinoides Joseph P. Tracy 1946-5-16 17346 Humboldt bench on w side of river 1 mi s Garberville; Eel River Comment
  UC906650  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1942-9-20 17324 Humboldt 2 mi s Fields Landing 3 Comment
  UC906670  Perideridia howellii Joseph P. Tracy 1949-8-27 18503 Humboldt on Trinity Hwy e Redwood Creek; Berry's Mt. 609 Comment
  HSC75963  Perideridia kelloggii Overton, Butler 1979-8-2 12586 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC99811  Perideridia parishii subsp. latifolia G. L. Clifton, Terry Griswold 1979-8-1 12020 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  CHSC79802  Persicaria capitata Gordon Leppig; Sylvia Leppig 2000-4-16 1298 Humboldt Arcata. Corner 17th and J St. base of curb. UTM zone 10, N4525 E408. 60 Comment
  CAS-BOT-BC413711  Persicaria hydropiper Henry M. Pollard 1956-10-9 s.n. Humboldt Fig Tree Riffle at Woodson Mine, Klamath River, Orleans Comment
  HSC17528  Persicaria maculosa W. L. Jepson 1921-8-7 9334 Humboldt Stone Lagoon Comment
  CDA40548  Persicaria wallichii R. Robison 2014-5-5 s.n. Humboldt Adjacent to Trinidad State Beach on Stagecoach Road. 0 Comment
  CAS-BOT-BC330380  Petasites frigidus var. palmatus M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles N of Garberville Comment
  SEINET13978219 Image available Petasites frigidus var. palmatus R. R. Halse 2016-1 9684 Humboldt Along US Hwy 101 ca. 9.6 mi S of Orick. 8 Comment
  RSA298347  Phacelia bolanderi J. P. Smith, Steve Selva 1970-6-14 3821 Humboldt Along California 96 at Whitmore Creek. 152 Comment
  UC24323  Phacelia ciliata var. ciliata J. P. Tracy 1899-4-4 Humboldt Eureka Comment
  HSC30744  Phacelia heterophylla subsp. virgata D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5620 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  RSA167317  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1951-6-24 19539 Humboldt Rock exposure between serpentine rock pile and Ashfield Butte. Kneeland Prarie. 762 Comment
  UC176065  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1913-6-21 4252 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC552735  Phalaris aquatica Joseph P. Tracy 1934-6-21 13241 Humboldt along highway across Salmon Creek flats; Northern Coast Ranges, along hwy across Salmon Creek flats 6 Comment
  CDA304  Phalaris arundinacea J. W. Logan 1926-6-2 2 Humboldt Russell Ranch, Eureka. 0 Comment
  CAS-BOT-BC76557  Philadelphus lewisii Joseph P. Tracy 1938-6-9 15872 Humboldt Dobbyin Creek 152 Comment
  CAS-BOT-BC76571  Philadelphus lewisii Doris K. Kildale 1926-8-15 2508 Humboldt Trinity River Valley - Willow Creek Flat 152 Comment
  JEPS49600  Philadelphus lewisii W. L. Jepson 1902-7-1 1964 A Humboldt Hupa Road Redwood Creek Comment
  SEINET200858  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3319 Humboldt Along Willow Creek, near its mouth. 183 Comment
  UC11456  Philadelphus lewisii C. C. Marshall 1888-1 Humboldt Comment
  UC154079  Philadelphus lewisii Joseph P. Tracy 1909-8-1 3060 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC154110  Philadelphus lewisii Joseph P. Tracy 1908-6 2886 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC492217  Philadelphus lewisii Joseph P. Tracy 1929-7-27 8646 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  UC902079  Philadelphus lewisii Joseph P. Tracy 1949-9-1 18534 Humboldt Willow Creek Trinity River Valley 152 Comment
  SEINET200857  Philadelphus lewisii subsp. gordonianus Joseph P. Tracy 1937-6-20 15355 Humboldt Bear River, ten miles upstream from the mouth. 152 Comment
Read comments
Oct 8 2018
  UC187278  Phleum alpinum Joseph P. Tracy 1906-7-1 2514 Humboldt Eureka; Northern Coast Region 0 Comment
  UC183739  Phleum pratense Joseph P. Tracy 1912-7-27 3888 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA183512  Phlox adsurgens D. E. Anderson 1965-5-15 3693 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie Road Comment
  HSC17159  Phlox diffusa D. E. Anderson 1965-4-24 3529 Humboldt Horse Mtn. 1524 Comment
  UC1222725  Phlox gracilis Joseph P. Tracy 1950-5-7 18648 Humboldt head of Valley of South Yager Creek Valley of South Yager Creek 762 Comment
  HSC74351  Phoenicaulis cheiranthoides Gail Newton 1980-6-28 741 Humboldt Near Mad River Butte. 1536 Comment
  UC672850  Phoradendron juniperinum Joseph P. Tracy 1930-7-10 8770 Humboldt Brannan Mt. 1066 Comment
  RSA273312  Phoradendron libocedri Thomas W. Nelson, Jane P. Nelson 1976-6-16 2739 Humboldt Just W of Alder Springs. 1524 Comment
  HSC21903  Phyllospadix scouleri D. E. Anderson 1963-10-28 2886 Humboldt Luffenholtz Beach Comment
  JEPS46729  Picea sitchensis J. P. Tracy Feb. 1901 Humboldt Humboldt Bay Comment
  POM21764  Picea sitchensis L. R. Abrams 1916-7-18 6131 Humboldt Arcata to Trinidad. Comment
  RSA246848  Picea sitchensis Robert F. Thorne, P. Everett 1965-8-7 35200 Humboldt Big Lagoon, south end. 2 Comment
  UC55646  Picea sitchensis J. Burtt Davy 1899-7-30 6186 Humboldt in gulches in back Ferndale; North Coast Ranges Comment
  SEINET10904948  Picris echioides Mary Susan Taylor 1977-8-5 Taylor 1431 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  HSC98703  Pinus attenuata Cara Witte 2007-9-3 640 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36. 1448 Comment
  CAS-BOT-BC78374  Pinus contorta L. R. Abrams 1916-7-18 6352 Humboldt Arcata to Trinidad Comment
  CAS-BOT-BC78379  Pinus contorta Doris K. Kildale 1926-11-28 2865 Humboldt Patrick's Point 60 Comment
  HSC72826  Pinus monticola Gail Newton 1980-6-16 192 Humboldt Near Onion Mtn. 1280 Comment
  UC502912  Pinus ponderosa Joseph P. Tracy 1929-4-28 8541 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC275575  Piperia candida Joseph P. Tracy 1923-6-19 6297 Humboldt near Kings Peak; Northern Coast Ranges, Wilder Ridge 609 Comment
  UC1225849  Piperia elongata Joseph P. Tracy 1948-7-11 18073 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC136587  Piperia michaelii L. B. Kildale 1930-8-3 10495 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  UC1196426  Piperia transversa Edith and Ethel Tracy 1900-7-31 909 Humboldt opposite Eureka; Samoa, Ocean Beach Comment
  JEPS14836  Pityopus californicus Virginia P. Fox 1919-7-13 Humboldt Bald Mt. Comment
  CAS-BOT-BC227992  Plagiobothrys Doris Kildale Gillespie 1931-6-7 10647 Humboldt South Fork Mountain, Blake Lookout 1726 Comment
  CAS-BOT-BC228213  Plagiobothrys hispidulus Joseph P. Tracy 1935-7-25 14226 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  JEPS68107  Plagiobothrys nothofulvus Lincoln Constance 1934-5-23 617 Humboldt above Look Prairie; Bull Creek Region, South Fork Eel River 365 Comment
  JEPS30758  Plagiobothrys reticulatus H. E. Parks 1937-7-1 24042 Humboldt Spruce Cove Trinidad 64 Comment
  UC184235  Plagiobothrys reticulatus Joseph P. Tracy 1909-7-4 3009 Humboldt at Eureka; Northern Coast Region, Eureka 0 Comment
  JEPS60971  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1938-6-17 15963 Humboldt s point of Cape; Cape Mendocino 3 Comment
  JEPS61044  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-5-25 13844 Humboldt Fort Seward 106 Comment
  JEPS61046  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1942-6-15 17142 Humboldt Miranda South Fork of Eel River 121 Comment
  JEPS7112  Plantago elongata Joseph P. Tracy 1927-6-26 8218 Humboldt Stone Lagoon 6 Comment
  UCD124424  Plantago erecta Linda M. Barker 1976-4-30 1397 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  UC585989  Plantago major Joseph P. Tracy 1931-9-13 9671 Humboldt Mouth of Eel River 6 Comment
  HSC71216  Plantago maritima Thomas W. Nelson, Doris K. Niles 1979-5-19 4692 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  HSC100588  Plantago maritima Carl C. Marshall Jun 1886 229 Humboldt Salt marshes. Comment
  HSC90480  Plantago maritima Jean Hanson 1981-5-10 136 Humboldt Indian Island, Humboldt Bay, city of Eureka, W end of island Comment
  RSA412592  Plantago purshii var. oblonga H. M. Pollard 1947-8-23 s.n. Humboldt Air Landing Field, west of Orleans. Comment
  HSC40132  Platanthera dilatata var. leucostachys Thomas W. Nelson, James Nelson 1976-7-28 3083 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  UC176370  Platanthera leucostachys Joseph P. Tracy 1912-7-31 3901 Humboldt nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope Buck Mountain 1066 Comment
  CAS-BOT-BC91638  Platystemon californicus J. Ed. McClellan; Bonnie McClellan 1972-6-1 s.n. Humboldt Samoa. Comment
  POM149391  Platystemon californicus var. californicus Joseph P. Tracy 1904-4-24 2020 Humboldt Sand dunes of ocean beach at Humboldt Bay, Northern Coast Region. Comment
  UC1239605  Plectritis congesta Joseph P. Tracy 1932-6-26 10255 1/2 Humboldt Valley of South Yager Creek 762 Comment
  UC1239606  Plectritis congesta Joseph P. Tracy 1923-5-20 6216 Humboldt Kneeland Prairie 762 Comment
  UC1239577  Plectritis congesta Joseph P. Tracy 1901-5-18 1100 1/2 Humboldt Northern Coast Region, Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  UC552670  Pleuropogon californicus Joseph P. Tracy 1935-5-25 13846 Humboldt Fort Seward 106 Comment
  UC1258206  Pleuropogon refractus Paul But Aug 1977 P 47 Humboldt Jacoby Creek Comment
  RSA10119  Poa Joseph P. Tracy 1933-7-26 12911 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  HSC26347  Poa annua T. O. Osborne 1970-4-5 78 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  UC1607849  Poa annua Harold E. Parks June 1951 Humboldt Spruce Cove Trinidad Comment
  HSC10704  Poa douglasii R. H. Berg 1963-5-8 67 Humboldt On sand dunes near Lanphere's, Arcata. Comment
  UC1145142  Poa douglasii Joseph P. Tracy 1917-5-30 4799 Humboldt at Little River Ocean Beach; Northern Coast Region Comment
  UC569487  Poa douglasii H. S. Yates 1936-6-18 5726 Humboldt near mouth Little River; Eureka Quadrangle 4 Comment
  UCD91135  Poa howellii A. H. Murphy 1950-5-10 s.n. Humboldt E. M. Cottrell Ranch, on Roth Road. Comment
  SEINET200573  Poa kelloggii Joseph P. Tracy 1911-6-4 3219 Humboldt Along Little River , Humbolt county , 5 miles from the coast 122 Comment
  RSA55251  Poa macrantha W. A. Silveus 1938-7-6 2916 Humboldt Stinson beach Comment
  SEINET10954258  Poa macrantha Harold E. Parks Parks 4805 Humboldt In sand at sea level, Little River Lagoon. Comment
  UCD91557  Poa nemoralis A. E. Lyons 1926-6-1 s.n. Humboldt in city of Orick. Comment
  JEPS72922  Poa pratensis subsp. pratensis Lincoln Constance 1934-6-19 918 a Humboldt near summit Grasshopper Peak (S Fork Eel River); Bull Creek Region 914 Comment
  HSC73790  Poa secunda subsp. secunda Gail Newton 1980-6-28 709 Humboldt Near Mad River Butte. 1536 Comment
  UCD91738  Poa secunda subsp. secunda A. H. Murphy 1951-4-18 s.n. Humboldt Tooby and Prior Ranch, Blocksburg. 457 Comment
  UC1145116  Poa trivialis Joseph P. Tracy 1943-7-18 17435 Humboldt Big Lagoon 9 Comment
  HSC102948  Poa trivialis J. P. Smith Jun 2009 12601 Humboldt Arcata. Lawn weed Comment
  HSC10809  Poa unilateralis R. Long 1964-5-7 Humboldt Samoa. Comment
  UC1103190  Poa unilateralis Joseph P. Tracy 1933-6-6 12500 Humboldt Trinidad, bluffs facing ocean Trinidad; Northern Coast Region 60 Comment
  RSA0022165  Pogogyne zizyphoroides Joseph P. Tracy 1946-5-30 17544 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town 61 Comment
  UCD125473  Pogogyne zizyphoroides Joseph P. Tracy 1946-5-30 17544 Humboldt Carlotta; by old Strong's District School House, 5 miles east of town. 60 Comment
  HSC72615  Polygala californica J. P. Smith 1977-7-3 9258 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  UC170193  Polygala californica Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  RSA75592  Polygala californica Albert M. Vollmer, L. Beane 1951-6-6 127 Humboldt On road between Orick and Weitchpec. Comment
  JEPS50493  Polygonum amphibium var. emersum Joseph P. Tracy 1927-5-14 8026 Humboldt Patterson Ranch Trinity River Valley, Willow Creek (pond) 152 Comment
  UC672967  Polygonum davisiae Joseph P. Tracy 1935-7-30 14383 Humboldt Salmon Summit 2103 Comment
  HSC71819  Polygonum douglasii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5954 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  HSC75441  Polygonum minimum J. O. Sawyer 1980-7-18 3608 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA178533  Polygonum minimum Joseph P. Tracy 1950-8-8 19281 Humboldt On trail betw Box Camp and Croghon Hole. 1677 Comment
  RSA191950  Polygonum paronychia Robert F. Thorne 1957-9-3 19013 Humboldt Little River Beach, few miles S of Trinidad. Comment
  RSA472708  Polygonum paronychia E. A. Purer 1932-7-27 15975 Humboldt Samoa Comment
  RSA65853  Polygonum paronychia F. W. Peirson 1941-7-29 13109 Humboldt old sand dune back of beach at Little River Beach State Park Comment
  UC55514  Polygonum paronychia Harley P. Chandler May, 1901 1157 Humboldt Samoa North Coast Ranges, Humboldt Bay (sandhills) 3 Comment
  UC672979  Polygonum phytolaccifolium Joseph P. Tracy 1933-7-26 12921 Humboldt Grouse Mountain; around old cabin 1524 Comment
  CAS-BOT-BC419955  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1930-7-17 9010 Humboldt South Fork Mountain. Near McKay Camp. 1676 Comment
  UCD100641  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Trinity Summit, Corral Prairie. 1584 Comment
  CDA36030  Polygonum polystachyum R. Robison 2011-6-3 Humboldt Trinidad State Beach, Stagecoach Road 0 Comment
  JEPS79950  Polygonum polystachyum Joseph P. Tracy 1940-10-18 16775 Humboldt Eureka 30 Comment
  RSA46707  Polypodium glycyrrhiza Doris K. Kildale 1929-3-10 6942 Humboldt Bug Creek Comment
  HSC89486  Polypodium scouleri P. A. Daly 1986-3-12 68 Humboldt Trinidad Head, along trail 61 Comment
  RSA689965  Polypodium scouleri Charlotte M. Hoak 1936-8-15 376 Humboldt Patricks Point Comment
  HSC1130  Polypodium scouleri W. R. Supernaugh, Jr. 1964-12-11 14 Humboldt 300 yards S of Trinidad Harbor 9 Comment
  RSA689966  Polypodium scouleri Susan Hutchinson 1931-07 102 Humboldt Grade between Trinidad and Big Lagoon 15 Comment
  UC1472770  Polypodium scouleri Mrs. Carlotta C. Hall 1924-8-10 233 Humboldt 10 mi above Carlotta (along Van Duzen River, on rd. to Redding) Comment
  CAS-BOT-BC232958  Polypogon australis Mrs. H. C. Cantelow 1961-5-29 s.n. Humboldt 5.7 km Eel River, Hartsook Comment
  CAS-BOT-BC233076  Polypogon interruptus Doris K. Kildale 1929-5-26 9128 Humboldt Klamath River at Orleans 152 Comment
  UC526772  Polypogon interruptus Joseph P. Tracy 1927-7-16 8259 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC233212  Polypogon maritimus Joseph P. Tracy 1933-7-20 12811 Humboldt Along Mad River, near Blue Lake 15 Comment
  UC526768  Polypogon maritimus Joseph P. Tracy 1933-7-20 12811 Humboldt along Mad River near Blue Lake; along Mad River, near Blue Lake 15 Comment
  HSC89907  Polypogon monspeliensis Leonel Arguello 1989-5-27 Humboldt Lanphere-Christensen Dunes Preserve 3 miles W of Arcata. End of Saltmarsh trail. Comment
  UCD39987  Polystichum imbricans subsp. curtum Rodney Gale Myatt 1971-9-22 1198 B Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  HSC41354  Polystichum munitum Brad Klipfel 1974-8-2 508 Humboldt Horse Mtn., along Horse Mtn. Creek Comment
  SEINET4555668 Image available Polystichum munitum Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15050 Humboldt Bolling Grove State Park. Comment
  JEPS64534  Populus Joseph P. Tracy 1939-4-18 16211 Humboldt on South Fork of Eel River between Miranda and Redway (at Sylvandale); North Coast Ranges, South Fork of Eel River 91 Comment
  UC1225789  Populus trichocarpa Joseph P. Tracy 1948-4-11 17970 Humboldt 2 mi e Dyerville (Eel River); Eel River 48 Comment
  UC249560  Populus trichocarpa Joseph P. Tracy 1922-10-8 6123 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  UC1103514  Potamogeton foliosus Joseph P. Tracy 1923-5-30 6247 Humboldt pond at mouth of Little River; Northern Coast Ranges 1 Comment
  HSC45347  Potamogeton natans R. York 1978-4-8 125 Humboldt Between Arcata and Eureka along Hwy. 101 0 Comment
  SEINET3892866  Potamogeton natans Marla J. Carollo 1979-5-17 086 Humboldt East of Little River Beach State Park, so. of Hwy 101.; 0 Comment
  CDA26070  Potentilla anserina subsp. pacifica B. F. Kemp 1958-5-14 Humboldt Ferndale. 0 Comment
  HSC60412  Potentilla anserina subsp. pacifica J. P. Smith 1970-6-7 3807 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC90766  Potentilla anserina subsp. pacifica Gail Newton 1982-5-5 2519 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC15477  Prosartes smithii H. E. Parks 1935-3 5582 Humboldt Trinidad Comment
  CAS-BOT-BC517507  Prosartes smithii C. Epling; Wm. Robison 1935-7-24 s.n. Humboldt Dyerville Comment
  HSC15469  Prosartes smithii D. E. Anderson 1965-5-1 3578 Humboldt On Bluff Creek Rd. 4-5 mi. W of junction with Hwy. 96 Comment
  UCSB27862  Prosartes smithii Phelps, M. 1972-3-20 Humboldt 0.5 mi. south of Redway on Old Hwy. 101, 1000 yds. from road toward river 182 Comment
  HSC44534  Prunella vulgaris subsp. lanceolata Brad Klipfel 1973-7-1 142 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC99296  Prunella vulgaris subsp. lanceolata Jimerson, J. Pageau 1979-8-10 721 Humboldt Near Tish ATang Ridge, close to the town of Hoopa 1464 Comment
  HSC59667  Prunella vulgaris subsp. lanceolata George Kirn 1977-10-3 Humboldt Jolly Giant Creek, 1/4 mi. from HSC campus 30 Comment
  UC577391  Prunella vulgaris var. lanceolata Joseph P. Tracy 1937-6-28 15370 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  RSA245006  Prunella vulgaris var. lanceolata William J. Ferlatte 1966-6-15 2093 Humboldt Near Bridgeville Comment
  RSA289937  Prunella vulgaris var. lanceolata Lincoln Constance 1934-5-24 641 Humboldt Bull Creek Region, South Fork Eel River 122 Comment
  POM160879  Prunus emarginata Joseph P. Tracy 1923-4-15 6195 Humboldt Hungry Hollow on Bald Mt. Comment
  POM89158  Prunus emarginata Joseph P. Tracy 1920-11-7 5410 Humboldt Around Humboldt Bay. Mad River at Lindsey Creek. 30 Comment
  HSC99391  Prunus emarginata var. emarginata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 40 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC97633  Prunus virginiana var. demissa Cara Witte 2007-6-12 247 Humboldt Cold Spring. 1410 Comment
  HSC40261  Pseudognaphalium ramosissimum Linda M. Barker 1976-8-2 1678 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  HSC102507  Pseudotsuga menziesii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1492 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  RSA134611  Pseudotsuga menziesii P. C. Everett, B. K. Balls 1959-10-25 23971 Humboldt 7 mi SW from Ferndale along Old Coast Road to Capetown. 564 Comment
  HSC76290  Pseudotsuga menziesii var. menziesii Teresa Prendusi 1981-7-23 358 Humboldt Near Black Mountain. 890 Comment
  OBI36540  Pseudotsuga menziesii var. menziesii David J. Keil 1983-7-2 17338 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  UC642278  Pteryxia terebinthina var. californica Joseph P. Tracy 1929-6-3 8600 Humboldt Trinity Rivery Valley, at Willow Creek 152 Comment
  CAS-BOT-BC460596  Pyrola aphylla Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC462867  Pyrola asarifolia Doris K. Kildale 1925-6-28 797 Humboldt Kneeland Prairie 609 Comment
  UC1197571  Pyrola asarifolia Edith Tracy 1898-7-1 248 Humboldt on Kneeland Prairie Road about 10 miles Esta of Eureka 457 Comment
  HSC17970  Pyrola asarifolia subsp. bracteata J. Wendell Howe 1930-6-28 Humboldt Kneeland Prairie, edge of Redwood Belt Comment
  HSC55263  Pyrola crypta Overton, Butler 1979-8-2 12608 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1541552  Pyrola picta Harold E. Parks 1934-6-27 4931 Humboldt Horse Mountain 1280 Comment
  UC32670  Pyrola picta Chesnut and Drew 1888-7-12 Humboldt Jarnigan's Comment
  HSC72788  Quercus chrysolepis M. A. Baker 1980-6-26 2413 Humboldt Near Sims Creek 610 Comment
  UCD40471  Quercus chrysolepis Rodney Gale Myatt 1971-9-21 1185 -12 Humboldt Near Orleans, northeast of Hoopa Reservation, along Klamath River. 185 Comment
  UC275589  Quercus garryana Joseph P. Tracy 1924-8-31 6856 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 91 Comment
  UC419047  Quercus garryana H. E. Parks, J. P. Tracy 1930-9-15 764 Humboldt Bald Hills Kneeland Comment
  UC54686  Quercus garryana Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5854 Humboldt Trinity Summit, at lake near the top North Coast Ranges Comment
  SEINET12852859  Quercus garryana Unknown 1934-8-31 6856 Humboldt Klamath River at Bluff Creek. Comment
  CAS-BOT-BC105167  Quercus kelloggii Doris K. Kildale 1928-4-29 5972 Humboldt Horse Mountain Comment
  HSC98688  Quercus kelloggii Cara Witte 2008-10-18 1060 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N36. 1248 Comment
  HSC70635  Quercus sadleriana R. York 1980-5-18 601 Humboldt Near Black Mtn. 792 Comment
  UCD47234  Quercus sadleriana Joseph P. Tracy 1947-8-24 17909 Humboldt Trinity Summit near Box Camp. 1524 Comment
Read comments
Aug 6 2009
  UCD47250  Quercus sadleriana W. L. Jepson 1902-7-16 2033 Humboldt Ridges and slopes just below summit; Trinity Summit. 1524 Comment
  HSC41330  Quercus vacciniifolia Brad Klipfel 1974-9-17 573 Humboldt Horse Mtn. Comment
  UC180641  Quercus wislizeni Joseph P. Tracy 1914-5-14 4458 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  JEPS55034  Ranunculus alismifolius var. alismellus W. L. Jepson July, 1902 2106 Humboldt Trinity Summit 2133 Comment
  UC1103003  Ranunculus aquatilis var. capillaceus Joseph P. Tracy 1913-3-9 4024 Humboldt Alton Northern Coast Region (ditch by roadside) 30 Comment
  HSC79359  Ranunculus californicus Kenneth Clark 1980-3-22 521 Humboldt Ridge above Dead Man's Gulch 152 Comment
  JEPS55086  Ranunculus californicus Joseph P. Tracy 1916-4-30 4681 Humboldt Table Bluff Northern Coast Ranges, about Humboldt Bay 152 Comment
  HSC18144  Ranunculus californicus var. californicus T. M. Mingo May 1965 Humboldt W of Fairhaven Dr. intersection with Hwy. 101 Comment
  HSC18212  Ranunculus flammula var. ovalis R. D. Modafferi 1965-5-13 71 Humboldt 2.3 mi. N of Trinidad on Trinity St. 305 Comment
  HSC26638  Ranunculus lobbii Thomas W. Nelson 1971-5-31 447 Humboldt Vernal pond Comment
  UC1196212  Ranunculus occidentalis J. P. Tracy 1901-5-5 1066 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1196220  Ranunculus occidentalis Joseph P. Tracy 1908-6 2688 1/2 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET200319  Ranunculus occidentalis J. T. Gregory 381 Humboldt Grouse Mtn near 'Clear Lake 1524 Comment
  HSC102107  Ranunculus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1010 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC31173  Ranunculus occidentalis var. occidentalis D. E. Anderson 1972-6-20 5748 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC73606  Ranunculus occidentalis var. occidentalis M. A. Baker 1980-7-22 3118 Humboldt Near Grogan Hole. 1676 Comment
  SDSU10120  Ranunculus orthorhynchus Leslie Hickson 1990-4-15 15 IV90A Humboldt 38 Apple Valley Lane in the northwest corner of the pasture. Comment
  UC1196245  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1933-7-11 12701 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1713273  Ranunculus pusillus Joseph P. Tracy 1919-5-31 5177 Humboldt opposite Willow Creek (shores of pond); Northern Coast Regions, Trinity River, Lack Pond 152 Comment
  HSC95591  Ranunculus repens Andrea Pickart 2002-3-31 24 Humboldt Arcata Marsh, Dan Hauser Marsh 0 Comment
  HSC55324  Ranunculus uncinatus Griswold, Butler 1979-7-12 7143 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC162791  Ranunculus uncinatus J. P. Tracy 1906-4-22 2416 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC74183  Raphanus raphanistrum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  UC1197997  Rhamnus californica Joseph P. Tracy 1934-8-4 13555 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS42008  Rhamnus californica subsp. californica W. L. Jepson 1902-7-10 2001 Humboldt South Fork, junction of Trinity River, Martin ranch Trinity River 304 Comment
  JEPS42009  Rhamnus californica subsp. californica W. L. Jepson 1903-6-19 2206 Humboldt Briceland, s Humboldt County Briceland Comment
  RSA7737  Rhamnus californica subsp. occidentalis Doris K. Kildale 1928-10-7 6748 Humboldt Willow Creek Canyon, 7 miles W of Trinity River Comment
  UC709447  Rhamnus californica subsp. occidentalis Joseph P. Tracy 1941-9-4 17012 Humboldt along Trinity Highway Willow Creek Canyon 609 Comment
  JEPS41976  Rhamnus purshiana W. L. Jepson 1936-8-18 17942 Humboldt Wildcat Ridge, w Humboldt Co. Wildcat Ridge Comment
  RSA8096  Rhamnus tomentella subsp. tomentella Doris K. Kildale 1928-10-7 6754 Humboldt Trinity River at mouth of Willow Creek Comment
  CAS-BOT-BC56610  Rhododendron macrophyllum Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  CAS-BOT-BC56613  Rhododendron macrophyllum Mrs. Rachel Ellery 1916-4-1 s.n. Humboldt Beatrice Comment
  CAS-BOT-BC56615  Rhododendron macrophyllum Clarence R. Quick 1959-7-24 59 -24 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  RSA69211  Rhododendron macrophyllum A. D. Tenney 1925-04 6020 Humboldt Arcata. Comment
  HSC102638  Ribes binominatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1622 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC97217  Ribes bracteosum M. Mesler 2007-3-23 743 Humboldt Near Trinidad, trail from Mill Creek to Elk Head, along creek near beach. 23 Comment
  UC154067  Ribes divaricatum var. pubiflorum Mrs. M. H. Manning Apr. 1902 Humboldt near Hupa Comment
  HSC99025  Ribes lacustre Cara Witte 2008-7-1 781 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  UC1215538  Ribes laxiflorum D. E. Anderson 1962-4-1 1969 Humboldt intersection of Clam Beach Rd. and Dows Prairie Rd. Comment
Read comments
Apr 5 2012
  UCR80295  Ribes laxiflorum H. E. Parks, S. T. Parks 1937-6-4 24004 Humboldt North Coast, along Prairie Creek at Valley Green Comment
  RSA0021134  Ribes lobbii Lyman Benson 1928-7-12 503 Humboldt Weott Ranger Station. Seaward North Coast Range, South Fork Eel River. 61 Comment
  HSC34630  Ribes menziesii R. M. Sullivan 1975-4-9 3 Humboldt 1.0 mi. S of Patrick's Point, 40yds W of old Hwy. 101 46 Comment
  UC1198931  Ribes menziesii J. P. Tracy 1905-3-26 2153 Humboldt immediate vicinity Eureka 0 Comment
  HSC71034  Ribes roezlii Thomas W. Nelson 1977-4-20 3326 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  CAS-BOT-BC198868  Ribes roezlii var. amictum Volney Rattan 1880-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC198899  Ribes roezlii var. cruentum Doris K. Kildale 1926-6-27 2232 Humboldt Little Van Duzen River on Bridgeville-Weaverville Road 640 Comment
  SEINET3121271 Image available Ribes roezlii var. cruentum Joseph P. Tracy 1944-7-3 17481 Humboldt Trinity River Valley; Willow Creek 152 Comment
  HSC20336  Ribes sanguineum E. W. Styskel 1963-3-3 2 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  UC1198913  Ribes sanguineum Joseph P. Tracy 1928-4-22 8411 Humboldt Willow Creek Canyon Northern Coast Ranges 762 Comment
  UC1541333 Image available Ribes sanguineum Parks and Parks 1932-4-10 Humboldt Blue Slide Van Duzen River Comment
  UC902091  Ribes sanguineum Joseph P. Tracy 1948-9-5 18178 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  RSA0018244  Ribes sanguineum S. Ganley 1971-5-29 661 Humboldt Highway 299, along Trinity River. 457 Comment
  SEINET12217529  Ribes sanguineum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -298 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CAS-BOT-BC144681  Ribes sanguineum var. glutinosum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC103214  Ribes sanguineum var. glutinosum Jade Paget-Seekins 2010-3-27 8 Humboldt Elkhead (just north of Trinidad on Stagecoach Road). 40 Comment
  HSC37844  Ribes sanguineum var. glutinosum Thomas W. Nelson, James Nelson 1976-3-11 2266 Humboldt Beside Eel River just N of terminus of Singley Rd. Comment
  JEPS49335 Image available Ribes sanguineum var. glutinosum Joseph P. Tracy 1925-4-5 6960 Humboldt at crossing of Kneeland Road (Lawrence Creek); Northern Coast Ranges 609 Comment
  CHSC97983  Ribes viscosissimum April A. Allard; Gregory D. O'Connell 2005-6-15 13 Humboldt NE of Grouse Mtn. Roadside. 5339 Comment
  HSC44194  Ribes viscosissimum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3489 Humboldt Along W side of road to Goat Hill 1616 Comment
  HSC48397  Ribes viscosissimum Brad Klipfel 1973-6-10 104 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CHSC59600  Romanzoffia californica R. N. Raynor 1935-4-8 Humboldt Ft. Seward. Comment
  RSA516379  Romanzoffia californica Barbara Ertter, Thomas Delendick 1987-5-16 6937 Humboldt 3 miles E of Berry Summit on Hwy 299, 20 airmiles E of Arcata; base of large volcanic rock on S side of road above Willow Creek. 800 Comment
  UC552251  Romanzoffia californica Joseph P. Tracy 1925-4-5 6954 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1198278  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9666 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC14402  Rorippa curvisiliqua Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  HSC31560  Rosa nutkana Glenn McGourty 1974-6-1 77 Humboldt Comment
  POM92406  Rosa nutkana L. R. Abrams 1922-06 8242 Humboldt Near South Bay. Comment
  SEINET11912081  Rosa pinetorum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -312 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Road 150 Comment
  CAS-BOT-BC148347  Rosa pisocarpa Doris K. Kildale 1928-6-24 5238 Humboldt Redwood Creek at Berry's 289 Comment
  HSC49684  Rosa pisocarpa J. O. Sawyer, R. J. Cole 1977-7-3 3018 Humboldt Along Big Hill Rd. (8N01) at Mud Spring. Comment
  UC667036  Rosa pisocarpa Joseph P. Tracy 1934-7-18 13416 Humboldt Grouse Mt. 1432 Comment
  CAS-BOT-BC148222  Rosa spithamea Volney Rattan 1883-6-1 s.n. Humboldt Trinity River, Coast Mts. North of San Francisco Bay Comment
  HSC60308  Rubus armeniacus J. P. Smith, Steve Selva 1970-6-14 3850 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC89515  Rubus armeniacus M. Roantree 1985-6-10 81 Humboldt East side of Trinidad Head Comment
  UC302102  Rubus laciniatus Joseph P. Tracy 1926-11-7 7828 Humboldt opposite Scotia (along Eel River from South Fork to Scotia); Northern Coast Ranges, along Eel River 60 Comment
  HSC102020  Rubus lasiococcus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 921 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  JEPS47293  Rubus lasiococcus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9021 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC58235  Rubus leucodermis Walter Overton 1979-8-1 12392 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC104043  Rubus parviflorus C. Reynolds 2015-4-25 37 Humboldt At Redwood Creek Trailhead, off Bald Hills Road 20 Comment
  HSC19656  Rubus parviflorus Lincoln Constance 1934-5-31 756 Humboldt S Fork of the Eel River, Bull Creek Flat, along Bull Creek, W boundary of park to Grasshopper Peak, N side of creek Comment
  HSC22040  Rubus parviflorus B. D. Rogers, D. E. Anderson 1965-5-1 514 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  HSC57020  Rubus parviflorus Overton, Butler 1979-7-24 9632 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  NY1043368  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  UC666863  Rubus parviflorus Joseph P. Tracy 1937-5-17 15299 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC492170  Rubus praecox H. E. Parks and Joseph P. Tracy 1932-8-13 10347 Humboldt 3 mi e Trinidad; Northern Coast Region 60 Comment
  CHSC68502  Rubus spectabilis Vernon H. Oswald 1997-4-10 8315 Humboldt Clam Beach between Arcata and Trinidad. Bordering a creek on the back beach. 30 Comment
  HSC19676  Rubus spectabilis Lincoln Constance 1934-6-2 780 Humboldt Bull Creek Rd. to mouth of Bull Creek, top Bull Creek Comment
  HSC28139  Rubus spectabilis J. D. Ackerman, A. M. Montalvo 1973-3-27 41 Humboldt 1.5 mi. N of Manila Comment
  CAS-BOT-BC158793  Rubus ursinus Kenneth Clark 1980-6-14 683 Humboldt Upper alluvial terrace of north fork Dead Man's Gulch, Shelter Cove 106 Comment
  UC1199048  Rubus ursinus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9082 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UCD17844  Rubus ursinus H. Olmo 8-10 May 1962 62- 31 Humboldt California. Humboldt County: 9 miles east of Carlotta. Comment
  HSC101448  Rubus ursinus subsp. macropetalus Cara M. Witte 2008-6-27 761 Humboldt Approximately 1.5 miles south of intersection of National Forest 1 and 5N04 1546 Comment
  UC1199269  Rudbeckia occidentalis Joseph P. Tracy 1932-7-20 10727 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  HSC56171  Rumex acetosella G. L. Clifton, Griswold 1979-8-1 12064 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC76604  Rumex acetosella John Demarinis 1981-7-21 885 Humboldt Near Table Bluff 38 Comment
  HSC102195  Rumex californicus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1109 Humboldt Andy's Camp 1564 Comment
  UCR122360  Rumex conglomeratus George K. Helmkamp, E. A. Helmkamp 2001-7-8 6982 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  CAS-BOT-BC421592  Rumex crispus Doris K. Kildale 1926-5-9 1997 Humboldt Kneeland Prairie 762 Comment
  UC146143  Rumex crispus Joseph P. Tracy 1908-6 2806 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UCD101126  Rumex crispus Linda M. Barker 1976-6-22 1622 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC37577  Rumex crispus J. D. Ackerman 1975-6-10 452 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd. S of Manila Comment
  HSC64432  Rumex maritimus J. P. Smith 1971-10-6 4941 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1191278  Rumex maritimus Malcolm A. Nobs and S. Galen Smith 1949-8-11 1338 Humboldt e shore Stone Lagoon Comment
  CAS-BOT-BC433703  Rumex occidentalis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] 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
  UC1103257  Rytidosperma penicillatum Mrs. Wm. Grotzman 1941-6-16 Humboldt Bayside Golf Links 30 Comment
  UC709432 Image available Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 17267 Humboldt sheep pasture near Hungry Hollow on Bald Mt. 609 Comment
  UC161048  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1905-4-30 2172 Humboldt sand dunes of Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  CAS-BOT-BC132667  Salix A. T. Whittemore 1980-3-15 80 -001 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  UC1196721  Salix Joseph P. Tracy 1935-4-17 13775 Humboldt Alton to Fortuna; Eel R. 15 Comment
  CAS-BOT-BC103818  Salix exigua Harold E. Parks 1931-5-14 0964 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  LA208688  Salix exigua var. hindsiana Harold E. Parks; 1931-5-14 958 Humboldt Fernbridge, Eel River 10.0 Comment
  SD992  Salix exigua var. hindsiana Herold E. Parks 1931-5-14 958 Humboldt Fernbridge, Eel River, on gravel bars 10 Comment
  CAS-BOT-BC104097  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0970 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104102  Salix hindsiana Harold E. Parks 1931-8-25 01061 Humboldt Blue Slide, Van Duzen River 90 Comment
  CAS-BOT-BC104113  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01335 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC104115  Salix hindsiana Joseph P. Tracy 1933-5-19 12203 Humboldt Eel River, Alton to Fortuna 15 Comment
  CAS-BOT-BC107741  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt Sand dunes, near Samoa 6 Comment
  HSC19965  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-5 1100 Humboldt Little River Comment
  HSC38179  Salix hookeriana Thomas W. Nelson 1976-11-5 3296 Humboldt Along Wabash Ave. between F & G St., Eureka Comment
  HSC90433  Salix hookeriana Jean Hanson 1980-3-8 18 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96357  Salix hookeriana Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS79975  Salix hookeriana Joseph P. Tracy 1941-3-9 16800 Humboldt along Eel R. (Camp Grant); along Eel River 48 Comment
  LA208761  Salix hookeriana Harold E. Parks; 1931-3-24 914 Humboldt Fortuna, on banks of Eel River 10.0 Comment
  RSA34247  Salix hookeriana Doris K. Kildale 1927-5-14 3190 Humboldt Big Lagoon. Comment
  SD938  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon 0 Comment
  UC1196631  Salix hookeriana J. P. Tracy 1904-4-3 2010 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1196681  Salix hookeriana Joseph P. Tracy 1919-3-30 5123 Humboldt Jacoby Creek Northern Coast Ranges, around Humboldt Bay (near the quarry) 91 Comment
  UC1222300  Salix hookeriana Joseph P. Tracy 1950-9-10 19366 Humboldt 1 mi inland from Cape Mendocino (1/2 mi s of town, foothills of Cape Ridge); , Cape Ridge 60 Comment
  UC146207  Salix hookeriana J. P. Tracy 1905-4 2392 /2168 Humboldt Immediate vicinity of Eureka 0 Comment
  UC469113  Salix hookeriana Joseph P. Tracy 1931-8-23 9623 Humboldt sand dunes near Samoa (on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC469118  Salix hookeriana Joseph P. Tracy 1931-9-20 9686 Humboldt Little River Northern Coast Ranges (mouth, edge of sand dunes) 6 Comment
  UC470440  Salix hookeriana Joseph P. Tracy 1931-9-20 9685 Humboldt Trinidad Northern Coast Region 60 Comment
  UC481336  Salix hookeriana Harold E. Parks August, 1931 1057 Humboldt Bishop Pine Lodge Trinidad 150 Comment
  UC481398  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna Eel River (bank of river) 10 Comment
  UC490461  Salix hookeriana Joseph P. Tracy 1932-5-10 9957 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC512090  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1217 Humboldt 1 mi s Samoa (pine barrens near coast) Comment
  UC518898  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 4 Humboldt around Eureka Comment
  UC709425  Salix hookeriana Joseph P. Tracy 1941-3-9 16801 Humboldt along Eel R. Camp Grant; Eel R. 48 Comment
  UC470455  Salix jepsonii Joseph P. Tracy Jul 16 1930-Jul 19 1930 8928 Humboldt meadow at McKay Camp; Northern Coast Ranges, S. Fork Mt. 1676 Comment
  UC519387  Salix laevigata Joseph P. Tracy 1933-6-9 12528 Humboldt along Eel R. Shively; Northern Coast Ranges, , Eel R. 30 Comment
  HSC19987  Salix lasiandra H. E. Parks 1931-5-14 959 Humboldt Lower Van Duzen River 0 Comment
  HSC38185  Salix lasiandra Thomas W. Nelson, James Nelson 1976-3-5 3284 Humboldt Beside Salmon Creek, W of old Hwy. 101 at Beatrice Comment
  HSC48060  Salix lasiandra Thomas W. Nelson 1978-4-23 3888 Humboldt Junction of Copher and Samoa Rds., N of Samoa Comment
  LA208818  Salix lasiandra Harold E. Parks; Joseph P. Tracy 1931-5-17 966 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  UC490525  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-4-17 9796 Humboldt Alton to Fortuna; Northern Coast Region 15 Comment
  SD1004  Salix lasiandra var. lasiandra Harold E. Parks, Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  CAS-BOT-BC107598  Salix lasiolepis Joseph P. Tracy 1933-4-2 10959 Humboldt On slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  CAS-BOT-BC107606  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-17 1324 Humboldt On west slpe of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  HSC56187  Salix lasiolepis Gilbert Muth 1979-8-1 12123 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC96369  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park, Big Lagoon Bog, W fen edge 3 Comment
  UC212997  Salix lasiolepis Joseph P. Tracy 1919-9-27 5302 Humboldt Willow Creek Northern Coast Ranges ((tributary of Trinity River), near its mouth) 152 Comment
  UC469404  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-23 9436 Humboldt vicinity of Trinidad (near R.R. Station); Northern Coast Region 60 Comment
  UC469419  Salix lasiolepis Joseph P. Tracy 1929-3-16 8530 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC470415  Salix lasiolepis Joseph P. Tracy 1931-10-3 9702 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC481805  Salix lasiolepis H. P. Bracelin 1931-5-1 268 Humboldt Sylvandale, between Miranda and Meyers, South Fork of the Eel River Comment
  UC490547  Salix lasiolepis Joseph P. Tracy 1932-4-24 9806 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC506508  Salix lasiolepis Joseph P. Tracy 1932-6-4 10130 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC511990  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1241 Humboldt Blue Slide Van Duzen River 91 Comment
  UC512025  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1333 Humboldt near bridge on Trinity Highway (foot of bank); Trinity River 152 Comment
  UC512032  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1327 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  LA208775  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1932-5-17 1324 Humboldt W slope of Berry's Mountain; on Trinity Hwy; E of Redwood Creek 761 Comment
  POM220145  Salix lucida subsp. lasiandra H. E. Parks, Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  POM362657  Salix lucida subsp. lasiandra H. E. Parks 1931-3-24 911 Humboldt Fortuna. Eel River. 10 Comment
  RSA171960  Salix lucida subsp. lasiandra Robert F. Thorne 1957-9-2 18988 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  SBBG22043  Salix lucida subsp. lasiandra R. F. Thorne 1957-9-2 18988 Humboldt Eel River, Burlington State Park, just S of Weott Comment
  CAS-BOT-BC125627  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  HSC20035  Salix melanopsis H. E. Parks 1931-5-14 956 Humboldt Little Laribee Ridge, Van Duzen River Comment
  JEPS13080  Salix melanopsis Joseph P. Tracy 1939-8-5 16393 Humboldt Van Duzen River at Dinsmore's 737 Comment
  LA208878  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  UC481307  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC511986  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1242 Humboldt Van Duzen R. at Blue Slide; Van Duzen R. 91 Comment
  UC519365  Salix melanopsis Joseph P. Tracy 1933-6-11 12550 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  CAS-BOT-BC129138  Salix scouleriana Joseph P. Tracy 1932-7-13 10507 Humboldt Open ground at Corral Prairie - Trinity Summit, Klamath Mountains 1524 Comment
  CAS-BOT-BC129170  Salix scouleriana Joseph P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon 609 Comment
  CAS-BOT-BC129174  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula near R.R. Comment
  HSC102196  Salix scouleriana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1110 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
Read comments
Jul 9 2015
  UC526712  Salix scouleriana Joseph P. Tracy 1934-3-13 13162 Humboldt in business district Eureka; Northern Coast Ranges 0 Comment
  POM220146  Salix sessilifolia H. E. Parks, Joseph P. Tracy 1931-5-17 967 Humboldt Mouth of Willow Creek at Trinity River. 150 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-BC128986  Salix sitchensis Harold E. Parks 1931-3-25 903 Humboldt Orick, on Van Duzen River 6 Comment
  HSC79548  Salix sitchensis Kenneth Clark 1980-3-27 548 Humboldt Creek on W slope of Dead Man's Gulch 114 Comment
  HSC90438  Salix sitchensis Jean Hanson 1980-3-8 13 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90745  Salix sitchensis Jean Hanson 1980-3-8 20 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  JEPS38498  Salix sitchensis Milo S. Baker 1923-7-23 89 Humboldt Manning Creek Comment
  UC1713724  Salix sitchensis Joseph P. Tracy 1905-11-5 2398 Humboldt immediate vicinity of Eureka 0 Comment
  UC490532  Salix sitchensis Joseph P. Tracy 1932-7-18 10724 Humboldt head of Brett Hole; Klamath Mts., Trinity Summit 1828 Comment
  UC504052  Salix sitchensis Jim Davis Apr 25 1933-Apr 27 1933 6 Humboldt around Eureka Eureka Comment
  UC585975  Salpichroa origanifolia Joseph P. Tracy 1933-8-22 12972 Humboldt Eureka; Northern Coast Ranges 0 Comment
  CAS-BOT-BC235127  Sambucus racemosa var. racemosa John Thomas Howell 1931-6-17 6725 Humboldt 2 1/2 miles n. of Orick Comment
  HSC22838  Sambucus racemosa var. racemosa C. D. Hunter 1964-4-12 Humboldt 3 mi. S of Big Lagoon along Hwy. 101 Comment
  UC1225815  Sambucus racemosa var. racemosa Joseph P. Tracy 1941-3-9 16803 Humboldt near junction of South fork and main Eel River (along river); Camp Grant 60 Comment
  UC1225816  Sambucus racemosa var. racemosa Joseph P. Tracy 1947-8-24 17912 Humboldt e Box Camp; Trinity Summit 1676 Comment
  UC1199042  Sanguisorba annua Joseph P. Tracy 1936-6-17 14974 Humboldt at crossing road from Bridgeville to Trinity Co. Little Van Duzen River 713 Comment
  HSC21610  Sanicula arctopoides S. J. Hawks 1965-3-12 1 Humboldt W of Eureka Airport Comment
  HSC39006  Sanicula bipinnatifida Thomas W. Nelson, Jane P. Nelson 1976-5-31 2648 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC21627  Sanicula bipinnatifida Jack Rockwell 1962-4-29 41 Humboldt W bank Redwood Creek, vicinity Hwy. 299 549 Comment
  UC1197100  Sanicula crassicaulis Joseph P. Tracy 1927-5-15 8034 Humboldt Trinity River Valley near the South Fork; Trinity River Valley 182 Comment
  UCR32083  Sanicula crassicaulis David J. Keil 1983-7-2 17341 Humboldt 2.8 mi south of SR 299 along Titlow Hill Rd., SW of Willow Creek 1098 Comment
  HSC21634  Sanicula crassicaulis V. G. Vieira 1963-5-18 28 Humboldt Lamphere's Comment
  HSC91934  Sanicula crassicaulis E. Mackey 1986-5-13 Humboldt Patrick's Point State Park, edge of forest at Palmer's Point Comment
  UC1022533  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 1326 Humboldt near Cobbs (along Mad River); Mad River Comment
  HSC38885  Sanicula graveolens J. O. Sawyer 1970-6-25 2297 Humboldt 1646 Comment
  BLMAR197  Sanicula laciniata Donald Hazlett 1994-6-7 197 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC314591  Sanicula laciniata Joseph P. Tracy 1923-3-17 6163 Humboldt Garberville Northern Coast Ranges, Garberville 121 Comment
  HSC65889  Sanicula tracyi R. York 1980-5-23 622 Humboldt Near Buck Mtn. 1524 Comment
  UC1197325  Sanicula tracyi Joseph P. Tracy 1908-6-30 Humboldt nw slope Buck Mtn; North Coast Ranges 762 Comment
  UC1197326  Sanicula tracyi Joseph P. Tracy 1913-6-19 4202 Humboldt opposite Buck Mtn (Dinsmore's Ranch); North Coast Ranges, Van Duzen River Valley 762 Comment
  UC642339  Sanicula tracyi Joseph P. Tracy 1929-7-4 8614 B Humboldt French Camp Ridge 1066 Comment
  HSC21645  Sanicula tuberosa F. Morrell 1949-5-15 Humboldt Berry Summit Comment
  JEPS79976  Saponaria officinalis Joseph P. Tracy 1929-7-21 8644 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  JEPS62817  Satureja douglasii W. L. Jepson 1932-8-8 16485 Humboldt Canoe Creek Grasshopper Peak 1066 Comment
  POM266005  Saxifraga mertensiana Lincoln Constance, Reed C. Rollins 1942-5-11 2869 Humboldt 3 miles W of East Fork of Willow Creek. Comment
  UC249630  Saxifraga mertensiana Joseph P. Tracy 1922-4-30 6009 Humboldt mouth of South Fork Trinity River; Northern Coast Ranges, South Fork Trinity River 152 Comment
  POM117422  Scandix pecten-veneris Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC7442  Schoenoplectus americanus R. L. Jarvis 1962-4-29 37 Humboldt Stone Lagoon, 3 mi. S of Orick 0 Comment
  RSA91475  Schoenoplectus maritimus F. W. Peirson 1923-7-11 4271 Humboldt Flats north of Eureka Comment
  CDA39124  Scirpus maritimus Gordon Leppig 1999-10-25 1268 Humboldt State Hwy 101, mile marker 61.40 Comment
  UCD141254  Scirpus microcarpus Gordon Leppig 1998-6-26 861 Humboldt Arcata, Alder Grove Pond. South side of pond. 18 Comment
  HSC79367  Scirpus microcarpus Kenneth Clark 1980-4-18 601 Humboldt Above Dead Man's Gulch, in upper meadow 213 Comment
  UCSC000121  Scirpus paludosus H. L. Person 1932-5-11 s.n. Humboldt near Arcata - Eureka Comment
  SEINET3991334  Scoliopus bigelovii Unknown 1941-4-26 16862 Humboldt Kneeland Prairie 762 Comment
  UC175805  Scoliopus bigelovii Joseph P. Tracy 1913-3-9 4017 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC517414  Scoliopus bigelovii Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC15636  Scoliopus bigelovii W. D. Stevens 1964-3-21 2 Humboldt 1.0 mi. E of Hwy. 299 on Lindsay Rd. Comment
  POM160835  Scoliopus bigelovii Joseph P. Tracy 1924-3-9 6615 Humboldt Lawrence Creek, near Kneeland Prairie; Plants of Northern Coast Ranges. 610 Comment
  SEINET12050517  Scoliopus bigelovii F. H. Utech 1988-1 88 -019 Humboldt along US 101 near junction of Durphy Creek & South Fork Eel River 60 Comment
  BLMAR679  Scrophularia californica Jennifer Wheeler 2013-7-17 679 Humboldt King range, Mattole Beach parking lot 6 Comment
  POM43296  Scrophularia californica Marcus E. Jones 1924-4-26 s.n. Humboldt Fortuna. Comment
  UC1011942  Scrophularia californica Francis W. Pennell 1949-7-6 26080 a Humboldt 2 mi nw Pepperwood (along Eel river, Rte 101) 30 Comment
  UC1239697  Scutellaria antirrhinoides Joseph P. Tracy 1934-6-19 13238 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  UC1713599  Scutellaria antirrhinoides Joseph P. Tracy 1938-6-9 15875 Humboldt near Blocksburg (2 mi s of town) 304 Comment
  UC249516  Scutellaria tuberosa Joseph P. Tracy 1922-4-30 6005 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS26915  Sedum laxum subsp. heckneri Wayne Roderick 1961-7-10 61 .989 Humboldt 6.6 mi n Orleans (Klamath River, 1.4 mi s of Siskiyou County line (Somesbar)); Klamath River, n of Orleans 152 Comment
  HSC57176  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-26 9997 Humboldt Near Willow Creek 1341 Comment
  SEINET4076756  Sedum radiatum O. M. Clark 1932-1 1295 Humboldt South Eureka. Comment
  UC524120  Sedum spathulifolium I. L. Wiggins 1932-6-18 5878 Humboldt mouth of Little River mouth Little River Comment
  JEPS48063  Sedum spathulifolium W. L. Jepson 1902-6-20 1908 Humboldt Hubbard's Station to Main Eel River; Hubbard's Station to Main Eel River Comment
  CAS-BOT-BC59121  Sedum spathulifolium subsp. pruinosum Alice Eastwood 1907-4-22 38 Humboldt Trinidad Comment
  CHSC79631  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata, behind Humboldt State University, at base of stump near Fern Lake spillway. UTM zone 10, 4526N, 409E. 48 Comment
  SBBG19224  Selaginella oregana L. L. Kiefer 1963-8-6 769 Humboldt Patrick's Pt St Park, N side of Lookout Rock 45 Comment
  LA209677  Selaginella oregana Lawrence L. Kiefer; 1963-8-6 769 Humboldt Patrick's Point State Park, Lookout Rock 45 Comment
  CHSC79937  Selaginella wallacei L. P. Janeway 1996-8-4 5061 Humboldt High North Coast Ranges. Along Titlow Hill Road (Road #1) about 0.3 mi west of the spur road to top of Horse Mountain. 1341 Comment
  UC1239800  Selaginella wallacei Joseph P. Tracy 1913-5-4 4062 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC56367  Senecio integerrimus var. major Griswold, Butler 1979-7-10 6252 Humboldt Near Board Camp Mountain, close to the town of Willow Creek 1494 Comment
  JEPS37229  Senecio integerrimus var. major W. L. Jepson 1902-7-16 2048 Humboldt Trinity Summit 2133 Comment
  UC1199241  Senecio integerrimus var. major Joseph P. Tracy 1938-5-1 15728 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS109412  Senecio integerrimus var. ochroleucus D. W. Taylor 2004-6-24 19144 Humboldt Spike Buck Mountain, north slope. Comment
  UC581694  Senecio minimus Joseph P. Tracy 1936-7-26 15052 Humboldt w of Redwood Creek; Trinity Highway, Bald Mt. Ridge 670 Comment
  UC1223153  Senecio sylvaticus Joseph P. Tracy 1941-8-17 16992 Humboldt near High Prairie (Bald Mountain); Bald Mountain Comment
  CAS-BOT-BC364330  Senecio triangularis Joseph P. Tracy 1932-7-13 10523 Humboldt Trinity Summit. Corral Prairie 1584 Comment
  HSC53962  Senecio triangularis Griswold, Butler 1979-7-11 7015 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC57876  Senecio triangularis Overton, Butler 1979-7-31 11412 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC67893  Senecio vulgaris J. P. Smith 1973-5-26 6840 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1199237  Senecio vulgaris Joseph P. Tracy 1918-4-21 4880 Humboldt on old Kneeland Prairie Road near Newell's Camp (around Humboldt Bay); Northern Coast Ranges, around Humboldt Bay 304 Comment
  UC963844  Senecio vulgaris H. E. Parks and S. T. Parks June 1943 24234 Humboldt Spruce Cove North Coast Ranges, , Spruce Cove (Trinidad) 60 Comment
  JEPS48271  Sequoia sempervirens Joseph P. Tracy 1926-2-21 7355 Humboldt Blue Slide on Van Duzen River 91 Comment
  NY64469  Sequoia sempervirens J. D. Mastrogiuseppe 11 1966 s.n. Humboldt Founder's Grove, Humboldt Redwoods State Park Comment
  RSA167269  Sequoia sempervirens Joseph P. Tracy 1950-12-18 19387 Humboldt At Park s place, Trinidad 3 Comment
  RSA175208  Sequoia sempervirens Robert F. Thorne 1957-9-2 18996 Humboldt Burlington State Park, just S of Weott. Comment
  SD34  Sequoia sempervirens Charlotte M. Wilder 1932-12-24 Humboldt Carlotta Comment
  UC667964  Sequoia sempervirens Joseph P. Tracy 1937-2-21 15231 Humboldt near Grizzly Creek; Van Duzen River 91 Comment
  SEINET5716899 Image available Sequoia sempervirens Ronald J. Mastrogiuseppe 1965-1 s.n. Humboldt Humboldt Redwoods State Park; near the Founders Tree.; Humboldt Redwoods State Park Comment
  CHSC40213  Sherardia arvensis L. P. Janeway 1984-5-13 775 Humboldt Along the Kneeland/Bridgeville Road ca 15 mi east of the Kneeland post office just past Lone Star Junction and near Lone Star Creek. 609 Comment
  UC602551  Sherardia arvensis Joseph P. Tracy 1935-5-25 13883 Humboldt Dobbyn Creek 152 Comment
  UC203995  Sidalcea malachroides Joseph P. Tracy 1918-7-1 4964 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River from South Fork to Scotia 60 Comment
  UC35225  Sidalcea malachroides Chestnut and Drew 1888-7-8 Humboldt near Arcata; near Arcata Comment
  RSA46857  Sidalcea malviflora subsp. patula Doris K. Kildale 1927-7-1 3624 Humboldt Alton Hill Comment
  POM160836  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-7-25 5344 Humboldt Dows Prairie 61 Comment
  HSC104342  Sidalcea oregana subsp. eximia James Regan, Humboldt Redwood Co., LLC 2 Humboldt Table Bluff 46 Comment
  UC668102  Silene antirrhina Joseph P. Tracy 1929-7-4 8615 Humboldt French Camp Ridge 1066 Comment
  UC1137920  Silene californica H. S. Yates 1936-6-23 5874 Humboldt 4 mi nne Cathay Peak; Dyerville Quad., nne of Cathay Peak Comment
  CAS-BOT-BC384425  Silene coronaria Volney Rattan 1878-1-1 s.n. Humboldt Hoopa Valley Comment
  HSC100417  Silene gallica Carl C. Marshall May 1885 73 Humboldt Dry soils, roadsides, etc. Comment
  HSC48611  Silene gallica Mark Flippo 1978-5-18 62 Humboldt Hwy. 101 N jct. with Giuntoli Lane Comment
  SEINET3823279 Image available Silene hookeri Joseph P. Tracy 1913-6-20 4234 Humboldt Lower foothills of Buck Mountain 762 Comment
  HSC4164  Silene laciniata subsp. californica D. E. Anderson 1965-5-15 3709 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC162883  Silene menziesii Harley P. Chandler June, 1901 1319 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 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
  UCD135877  Silybum marianum James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6872 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1198284  Sinapis arvensis J. P. Tracy 1906-6-20 2494 Humboldt immediate vicinity of Eureka 0 Comment
  HSC89540  Sisymbrium officinale M. Roantree 1985-4-28 26 Humboldt E side of Trinidad Head, along dirt road Comment
  SEINET3876425  Sisyrinchium bellum C. C. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge.; 0 33 Comment
  UC1051527  Sisyrinchium bellum Helen K. Sharsmith 1953-6-28 4384 Humboldt between Bell Springs and Blue Rock Ranch (on Bell Springs Road); Inner North Coast Ranges 853 Comment
  JEPS62111  Smilacina racemosa W. L. Jepson 1932-7-30 16449 Humboldt Bull Creek 121 Comment
  UC275555  Smilacina racemosa Joseph P. Tracy 1924-8-10 6798 Humboldt Stongs Station Northern Coast Ranges, Van Duzen River 91 Comment
  HSC69581  Solanum americanum R. Kalal 1980-6-8 15 Humboldt E of Clam Beach along slough 18 Comment
  RSA46494  Solanum americanum Doris K. Kildale 1926-2-7 1496 Humboldt Big Lagoon. Comment
  HSC21316  Solanum triflorum D. E. Anderson 1962-11-7 2342 Humboldt Near Trinity Hospital Comment
  HSC44112  Solanum xanti Barbara Kelly 1977-4-23 303 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  RSA47125  Solidago canadensis subsp. elongata Doris K. Kildale 1928-8-17 1211 Humboldt Trinity Summit 1829 Comment
  CAS-BOT-BC365431  Solidago elongata Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  POM318722  Solidago elongata Patricia Wilder 1968-8-21 4389 Humboldt Edge of bog in Big Lagoon Park, just west of US 101; Coast Range; Big Lagoon to Pacific Ocean drainage. 2 Comment
  UC581769  Solidago elongata Joseph P. Tracy 1937-8-12 15654 Humboldt Snow Camp 1402 Comment
  BLMAR705  Solidago spathulata Jennifer Anthony-Wheeler 1994-9-8 705 Humboldt Samoa/manilla dunes, growing in every dune mat area in the samoa rare plant protection area 12 Comment
  HSC47012  Solidago spathulata Sheila Logan 1978-11-23 220 Humboldt Manila; 1/4 mi. W of the junction of Samoa Blvd. and Redwood Gun Club Rd. 3 Comment
  UC249853  Solidago spathulata Joseph P. Tracy 1924-9-21 6901 Humboldt around Humboldt Bay (Eureka); Northern Coast Region, around Humboldt Bay, Eureka 15 Comment
  UC1541619  Solidago velutina subsp. californica H. E. and S. T. Parks 1937-9-1 24081 Humboldt Trinidad , Trinidad (Spruce Cove) 64 Comment
  UC1199287  Soliva sessilis Joseph P. Tracy 1914-5-14 4430 Humboldt Fort Seward , Fort Seward (Northern Coast Ranges) 121 Comment
  CAS-BOT-BC374425  Sonchus asper F. A. MacF. 1934-6-22 13743 Humboldt Arcata, North coast of California Comment
  HSC45079  Sonchus asper R. Sutherland 1976-8-6 2 .6876 Humboldt Briceland 186 Comment
  UC1070277  Sonchus oleraceus H. L. Person 1932-7-16 19437 Humboldt Highway n Trinidad; Rock Point Quad. Comment
Read comments
Aug 3 2007
  CAS-BOT-BC158898  Sorbus scopulina Doris K. Kildale 1925-8-16 1170 Humboldt Trinity Summit 1828 Comment
  HSC102045  Sorbus scopulina M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 948 Humboldt Rustic Camp, northwest of Patterson Meadows Comment
  HSC56199  Sorbus scopulina Gilbert Muth 1979-8-1 12165 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  RSA246788  Sparganium angustifolium subsp. emersum Robert F. Thorne, Percy C. Everett 1965-8-9 35321 Humboldt Clam Beach County Park: along highway. 3 Comment
  CAS-BOT-BC235369  Spartina densiflora Ken Berg 1986-7-28 637 Humboldt Humboldt Bay, Arcata; foot of I Street Comment
  CDA26260  Spartina densiflora T. C. Fuller 1961-9-28 7051 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  HSC103560  Spartium junceum Spadoni 2002-6-26 70828 Humboldt Along roadside in the vicinity of Garberville. Comment
  HSC91608  Spergula arvensis E. Mackey 1987-1-17 Humboldt Patricks Point State Park, parking lot near Ceremonial Rock Comment
  HSC89998  Spergula arvensis Leonel Arguello 1989-6-24 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata. Middle of Fernstrom-Root trail towards N end of it Comment
  HSC4264  Spergularia macrotheca D. K. Smith 1968-11-9 54 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  HSC45059  Spergularia rubra R. Sutherland 1978-5-12 6 .12578 Humboldt Mckee Flat 288 Comment
  RSA85248  Spiraea douglasii F. W. Peirson 1923-7-11 3752 Humboldt 7 miles N of Arcata. Comment
  UC666852  Spiraea douglasii Joseph P. Tracy 1937-7-17 15435 Humboldt Eureka 30 Comment
  RSA245280  Spiranthes romanzoffiana J. D. Ackerman 1973-8-29 119 Humboldt Big Lagoon Beach Co. Park; 8 miles N of Trinidad. Comment
  UC1196403  Spiranthes romanzoffiana Joseph P. Tracy 1937-7-5 15371 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC577326  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UCLA70876  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-4 15987 B Humboldt Valley of South Yager Creek 762 Comment
  UC668221  Stachys ajugoides var. rigida Joseph P. Tracy 1938-8-21 16132 Humboldt in front of s end Stone Lagoon (along coast); Dry Lagoon 3 Comment
  RSA82582  Stachys albens F. W. Peirson 1923-7-11 3830 Humboldt 7 miles N of Arcata. Comment
  UC673112  Stachys chamissonis Joseph P. Tracy 1940-9-26 16726 Humboldt Eureka 3 Comment
  HSC49394  Stachys rigida R. York 1979-5-15 288 Humboldt Trail leading to College Cove 1 mi. N of Trinidad Comment
  CAS-BOT-BC175344  Stellaria borealis subsp. sitchana Doris K. Kildale 1926-3-24 1684 Humboldt Ryan Slough near the Occidental Ranch Comment
  UC1198342  Stellaria borealis subsp. sitchana Joseph P. Tracy 1912-7-21 3776 Humboldt Alton; Northern Coast Region 30 Comment
  UC162363  Stellaria crispa Joseph P. Tracy 1900-8-5 914 Humboldt Eureka; Northern Coast Region 0 Comment
  UC161039  Stellaria littoralis J. P. Tracy 1909-5-16 2968 Humboldt near Trinidad 30 Comment
  JEPS51121  Stellaria media Lincoln Constance 1934-5-31 754 Humboldt Bull Creek Flat South Fork Eel River, Bull Creek Region (along Bull Creek, from w boundary of park to Grasshopper Pk (Squaw Cr) rd, n side of creek) Comment
  UC1103548  Stellaria media Joseph P. Tracy 1913-6-14 4124 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC4273  Stellaria media D. K. Smith 1968-1-16 2 Humboldt Bank of Crannell Rd. Comment
  HSC59679  Stellaria media George Kirn 1977-10-14 Humboldt Eureka, 6th and L St. 12 Comment
  UC1173636  Stenanthium occidentale Joseph P. Tracy 1937-7-25 15558 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  RSA168839  Stephanomeria virgata Joseph P. Tracy 1946-11-17 17666 Humboldt Eel River at mouth of Van Duzen River. Comment
  HSC58417  Stipa lemmonii Griswold, Butler 1979-7-12 7219 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC39717  Stipa miliacea D. E. Anderson, J. P. Smith 1971-6-28 - 1261 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC103087  Streptanthus tortuosus Sydney Carothers 2014-6-22 7 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  UC673194  Streptanthus tortuosus Lincoln Constance and Reed C. Rollins 1942-5-12 2880 Humboldt bluffs at mouth of creek 6 mi ne Weitchpec; Klamath-Siskiyou Region, Bluff Creek 152 Comment
  HSC104430  Streptanthus tortuosus Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  UC562688  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1935-7-24 14185 Humboldt near ranger station; Trinity Summit 1828 Comment
  HSC102122  Streptanthus tortuosus var. tortuosus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1026 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 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
  HSC57156  Streptopus amplexifolius Overton, Butler 1979-7-26 9955 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  JEPS62166  Streptopus amplexifolius var. americanus W. L. Jepson 1902-7-17 2058 A Humboldt trail to Devil's Backbone; Trinity Summit 2133 Comment
  JEPS12877  Symphoricarpos albus var. laevigatus W. L. Jepson 1932-7-28 16434 Humboldt Dyerville Comment
  UC602502  Symphoricarpos mollis Joseph P. Tracy 1936-6-28 15013 Humboldt near Murphy Meadows (Bald Mt); Bald Mt. 975 Comment
  HSC39446  Symphyotrichum chilense Linda M. Barker 1976-8-2 1676 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  UC186451  Symphyotrichum chilense Joseph P. Tracy 1915-9-12 4672 Humboldt Laribee Creek (mouth of) Northern Coast Ranges 91 Comment
  UC1222192  Symphytum asperum Joseph P. Tracy 1949-6-28 18358 Humboldt Salmon Creek Valley s. end Humboldt Bay, Salmon Creek Valley Comment
  HSC21149  Synthyris reniformis G. N. Bos 1965-5-2 247 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  JEPS9930  Synthyris reniformis Lincoln Constance 1934-6-15 882 Humboldt South Fork Eel River (Summit of Grasshopper Peak); Bull Creek Region 975 Comment
  HSC91945  Synthyris reniformis E. Mackey 1987-3-1 Humboldt Patrick's Point State Park, Big Meadow, next to copse Comment
  JEPS26264  Synthyris reniformis Joseph P. Tracy 1948-8-15 18116 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  JEPS26265  Synthyris reniformis Joseph P. Tracy 1923-4-15 6190 Humboldt Redwood Creek at Berry's Redwood Creek; North Coast Ranges 274 Comment
  RSA26843  Tanacetum camphoratum I. L. Wiggins 1940-7-10 9484 Humboldt Big Lagoon. Comment
  CHSC110732  Taraxacum erythrospermum Dean Wm. Taylor 2011-5-4 21112 Humboldt North Coast Ranges. Jepson Manual NCoR region. Alderpoinnt Road in the vicinity of the Snowline Fox Farm, vicinity of the road crossing of Knack Creek 341 Comment
  HSC1595  Taxus brevifolia F. Morrell 1949-5-22 33 Humboldt E of Berry Summit , Hwy. 299 Comment
  HSC1597  Taxus brevifolia Francis Winter 1960-5-7 Humboldt Pine Ridge Summit, Hoopa Indian Reservation 671 Comment
  HSC54651  Taxus brevifolia Overton, Butler 1979-7-25 9854 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC55212  Taxus brevifolia Walter Overton 1979-8-1 12351 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1198263  Taxus brevifolia Joseph P. Tracy 1908-6 2925 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC56716  Tellima grandiflora Harley P. Chandler May 1901 1232 Humboldt Humboldt Bay; North Coast Ranges 121 Comment
  UC160904  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1908-6 2714 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC399768  Thalictrum polycarpum Joseph P. Tracy 1932-6-26 10263 Humboldt Northern Coast Ranges. Valley of South Yager Creek 762 Comment
  UC1239777  Thelypteris nevadensis Joseph P. Tracy 1947-7-5 17803 Humboldt near Box Camp Trinity Summit 1524 Comment
  UC1129924  Thermopsis macrophylla var. macrophylla A. E. Wieslander 1931-5-19 7 Humboldt near Orleans; Klamath National Forest, Hoopa Quadrangle Comment
  UC902019  Thlaspi arvense Joseph P. Tracy 1949-9-29 18582 Humboldt near Freshwater Corners; near Freshwater Corners 30 Comment
  CAS-BOT-BC5391  Thlaspi californicum Volney Rattan 1882-6-1 s.n. Humboldt at Kneeland Prairie Comment
  OBI35885  Thuja plicata David J. Keil 1983-7-1 17294 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  RSA89625  Thuja plicata E. K. Balls, P. C. Everett 1953-10-13 18653 Humboldt 10.6 mi E of jct of Hwys 101 and 299 between Arcata and Willow Creek. 244 Comment
  UC1541645  Thuja plicata Harold E. Parks 1932-7-25 1139 Humboldt Trinidad, Camp Twenty One Trinidad; , Camp Twenty One 152 Comment
  UCD134036  Thuja plicata Roman Gankin 1965-8-6 557 Humboldt On Matolle Road, 7.4 miles northeast of Capetown. Comment
  HSC98805  Tiarella trifoliata var. unifoliata Cara Witte 2008-8-5 994 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  UC302171  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1925-7-5 7181 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC99482  Tolmiea menziesii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 141 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), between Six Rivers National Forest boundary and Box Camp 1433 Comment
  SEINET12221295  Tolmiea menziesii H. P. Chandler 1901-1 1268 Humboldt North Coast Ranges 457 Comment
  HSC37517  Torreyochloa pallida var. pauciflora J. D. Ackerman, A. M. Montalvo 1975-8-9 634 Humboldt Arcata, W end road, near Arcata Overhead (101 overpass) Comment
  CAS-BOT-BC323057  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 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
  HSC62982  Tragopogon porrifolius M. Dean Griswold Jr. 1979-5-29 80 Humboldt NW of Plant Operations, Humboldt State University campus Comment
  CAS-BOT-BC399990  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  UC535718  Trichostema laxum Eleanor Armstrong 1934-7-15 1130 Humboldt Richardson Grove 121 Comment
  JEPS63148  Trichostema laxum Joseph P. Tracy 1926-10-15 7815 Humboldt South Fork of Trinity River, mountain slopes W of mouth 304 Comment
  SEINET8999565 Image available Trichostema oblongum Unknown 1927-8-7 8327 Humboldt Trinity River Valley, at Willow Creek Comment
  UC1222859  Trichostema oblongum Joseph P. Tracy 1950-8-8 19284 Humboldt Croghan Hole, on Trinity Summit 1676 Comment
  HSC17934  Trientalis latifolia J. Sandborg, F. Sandborg May 1968 5 Humboldt Bluff Creek near Notice Creek, hillside 793 Comment
  UC1602051  Trifolium albopurpureum var. dichotomum Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 b Humboldt Hoopa Mt. Comment
  UC495698  Trifolium barbigerum Joseph P. Tracy 1927-5-14 8028 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1223499  Trifolium bifidum var. decipiens Joseph P. Tracy 1943-5-23 17427 Humboldt e Redwood Creek (at Berry's, on Trinity Hwy); North Coast Ranges 274 Comment
  HSC71453  Trifolium campestre J. P. Smith 1973-5-26 6808 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC33569  Trifolium cyathiferum Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC16503  Trifolium dubium Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5602 Humboldt Arcata Comment
  UCD108880  Trifolium dubium W. A. Williams 1951-6-1 s.n. Humboldt Humboldt County. Comment
  UC162814  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1908-6 2759 Humboldt opposite Buck Mtn; Valley of Van Duzen River 762 Comment
  UC302111  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1926-7-5 7729 B Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UCD108946  Trifolium fragiferum P. B. Kennedy 1929-6-14 10326 Humboldt Eureka. Niles Ranch. Comment
  HSC45170  Trifolium hirtum R. Sutherland 1978-5-16 9 .16578 Humboldt 402 Comment
  HSC100251  Trifolium incarnatum J. P. Smith, & J. O. Sawyer 2010-5-2 12808 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  HSC48764  Trifolium longipes Brad Klipfel 1973-6-10 100 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC45145  Trifolium microdon R. Sutherland 1978-5-24 3 .24578 Humboldt Mckee Flat 287 Comment
  HSC15222  Trifolium obtusiflorum William J. Ferlatte, B. D. Rodgers 1966-6-7 2084 Humboldt 1 mi. E of Forest Glen 732 Comment
  UC1197500  Trifolium obtusiflorum Joseph P. Tracy 1932-6-14 10153 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1223338  Trifolium obtusiflorum Joseph P. Tracy 1933-6-24 12614 Humboldt hills at n end Big Lagoon Comment
  UC1223339  Trifolium obtusiflorum Joseph P. Tracy 1933-6-11 12555 Humboldt 4 mi s Dyerville (along hwy, along South Fork Eel River) Comment
  HSC45134  Trifolium oliganthum R. Sutherland 1978-5-21 2 .21578 Humboldt 433 Comment
  POM162075  Trifolium oliganthum Joseph P. Tracy 1921-4-24 5438 Humboldt Phillipsville. Facing south fork of Eel River. 122 Comment
  HSC100538  Trifolium parvifolium Carl C. Marshall May 1886 225 Humboldt Arcata. Comment
  HSC58031  Trifolium repens G. L. Clifton 1979-7-31 11852 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC162779  Trifolium repens J. P. Tracy 1903-8-9 1946 Humboldt immediate vicinity Eureka 0 Comment
  HSC100539  Trifolium repens Carl C. Marshall May 1886 205 Humboldt Everywhere. Comment
  HSC96483  Trifolium repens Gordon Leppig 1997-6-19 450 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  RSA349524  Trifolium repens M. B. Dunkle 1936-8-18 4816 Humboldt South of Eureka Comment
  RSA259546  Trifolium subterraneum David Ferranti 1974-5-6 s.n. Humboldt 4360 1/2 Union Street Comment
  SEINET4206966  Trifolium variegatum Joseph P. Tracy 1932-5-17 10065 Humboldt Redwood Creek, at Berry's.; 0 274 Comment
  SEINET12156857  Trifolium variegatum L. K. Henry 1971-1 s.n. Humboldt along Rt 36, 2 mi E of Dinsmor in Six Rivers Nat'l Forest Comment
  UC165592  Trifolium variegatum var. variegatum Harley P. Chandler May, 1901 1169 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC495682  Trifolium variegatum var. variegatum Joseph P. Tracy 1932-5-17 100065 Humboldt Berry's Northern Coast Ranges (Redwood Creek) 274 Comment
  HSC49043  Trifolium willdenovii Patricia Shesgreen 1978-5-6 71 Humboldt Arthur W. Way Memorial Park campground. 100 yds. N of Mattole River. Comment
  HSC15235  Trifolium willdenovii Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  JEPS4131  Trifolium willdenovii Joseph P. Tracy 1932-4-23 9829 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC33316  Trifolium willdenovii Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 1/2 Humboldt Hoopa Mtn 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
  UC1223374  Trifolium wormskioldii Joseph P. Tracy 1950-6-29 18940 Humboldt 6 mi s Arcata (Fickle Hill) Comment
  UC160991  Trifolium wormskioldii Joseph P. Tracy 1911-6-25 3246 Humboldt Eureka Northern Coast Region 0 Comment
  UC1222703  Trifolium wormskioldii Joseph P. Tracy 1938-7-12 16056 Humboldt near Field's Landing (w end of Table Bluff) 548 Comment
  HSC12220  Triglochin maritima Gary J. Stebbins 1970-5-10 78 Humboldt Along Hwy. to Samoa just off the Mad River Slough bridge 2 Comment
  UCR179285  Trillium R. G. Swinney 1968-3-8 217 Humboldt Arcata 152 Comment
  CAS-BOT-BC520053  Trillium albidum Lester Rowntree 1938-5-23 s.n. Humboldt Carlotta Comment
  HSC96784  Trillium albidum M. Mesler 2006-5-24 601 Humboldt Coldsprings Camp, 7.4 mi. SE of Hwy. 299 on Titlow Hill Rd. 1402 Comment
  CAS-BOT-BC133390  Trillium ovatum Alice Eastwood 1939-3-19 18899 Humboldt Bolling Grove Comment
  CAS-BOT-BC133394  Trillium ovatum L. R. Abrams 1922-6-25 8257 Humboldt North of Mad River near Arcata Comment
  CAS-BOT-BC133399  Trillium ovatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC47579  Trillium ovatum Sheila Logan 1978-4-10 175 Humboldt Redwood Park behind HSU campus Comment
  HSC96778  Trillium ovatum M. Mesler 2006-6-6 611 Humboldt Big Hill Rd. 11.4 mi. E of Hwy. 96 at Six Rivers Forest boundary 1463 Comment
  HSC15702  Trillium ovatum K. P. St. John 1965-4-24 42 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  HSC34878  Trillium ovatum R. M. Sullivan 1975-4-9 5 Humboldt 40 yds. S of Fern Lake, HSU, Arcata Comment
  UC176190  Trillium ovatum Joseph P. Tracy 1913-4-13 4034 Humboldt at Eureka Eureka; Northern Coast Region 0 Comment
  UCD139909  Trillium ovatum Roman Gankin 1956-3-17 105 Humboldt south boundary of Jensen Grove, off U.S. Highway 101. Comment
  HSC98740  Trillium ovatum subsp. ovatum Cara Witte 2008-6-4 685 Humboldt Ammon Ridge Road. Approximately 1/2 mile east of intersection with National Forest 1. 1562 Comment
  CAS-BOT-BC521316  Trillium rivale L. B. Kildale 1930-6-1 9739 Humboldt Klamath River at Bluff Creek 152 Comment
  HSC20858  Triphysaria eriantha Elrid H. Spinas 1948-6-16 56 Humboldt Horse Mtn. Comment
  HSC47606  Triphysaria eriantha J. P. Smith 1977-4-23 9031 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC168980  Triphysaria eriantha subsp. eriantha Harley P. Chandler May, 1901 1249 Humboldt Bair's Ranch on Redwood Creek 152 Comment
  JEPS10422  Triphysaria eriantha subsp. rosea Joseph P. Tracy 1941-4-3 Humboldt Samoa , Samoa (Humboldt Bay) Comment
  BLMAR604  Triphysaria pusilla Jennifer Wheeler 2011-4-1 604 Humboldt King range, growing on Mattole beach dunes Comment
  UC176946  Triphysaria pusilla Joseph P. Tracy 1913-6-18 4196 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1198043  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1927-4-24 7928 Humboldt Eureka 6 Comment
  CAS-BOT-BC199627  Trisetum canescens Doris K. Kildale 1929-5-26 9129 Humboldt Klamath River at Orleans 152 Comment
  POM126097  Trisetum canescens Joseph P. Tracy 1903-5-22 1877 Humboldt Alder Point on Eel River, in woods. Comment
  UC526695  Trisetum canescens Joseph P. Tracy 1927-6-19 8194 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  UCD93602  Trisetum canescens P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek to Arcata. Comment
  HSC13417  Trisetum cernuum D. J. Wilder 1965-5-15 35 Humboldt 2 mi. E of Freshwater on Road to Kneeland Comment
  UC1103149  Trisetum cernuum J. P. Tracy 1902-6-20 175 1/2 Humboldt immediate vicinity Eureka 0 Comment
  HSC44872  Triteleia hyacinthina J. P. Smith, J. O. Sawyer 1973-5-12 6664 Humboldt 1.0 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS64202  Triteleia hyacinthina Lincoln Constance 1934-6-25 930 Humboldt Englewood, across road from Collin's Englewood Campground, on e side of road South Fork Eel River, Bull Creek Region Comment
  SD649  Triteleia laxa Mary S. Snyder 1894-5-14 Humboldt Eel River. 320 Comment
  RSA36387  Triteleia laxa E. K. Balls, Lee W. Lenz 1956-6-12 21663 Humboldt 23 miles southwest of Willow Creek along U.S. Highway 299 toward Arcata 640 Comment
  SEINET12053134  Triteleia laxa Unknown 1936-1 13196 Humboldt near Ukiah Comment
  UC1222685  Triteleia peduncularis Joseph P. Tracy 1950-6-15 18770 Humboldt near Redcrest Resort (Englewood); Englewood 91 Comment
  HSC18445  Tropaeolum majus Jana Kattenhorn 1970-10-24 134 Humboldt Arcata, HSU campus, S of Harpst St. Comment
  HSC72050  Tropaeolum majus J. M. DiTomaso 1979-5-10 947 Humboldt Corner of 13th and Union St., Arcata. Comment
  UC63994  Tsuga heterophylla Mrs. M. H. Manning 1901-10-1 Humboldt near Hupa 762 Comment
  HSC41923  Umbellularia californica Ed Cope 1977-4-23 25 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  POM380627  Urtica dioica subsp. gracilis Lyman D. Benson 1929-7-12 1792 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  SEINET200748  Urtica dioica subsp. gracilis Joseph P. Tracy 1927-3-6 7837 Humboldt Elk River. 30 Comment
  HSC24670  Utricularia macrorhiza W. B. Strickland 1968-3-28 Humboldt McClellan Mtn. Rd., off Hwy. 36 above Bridgeville 457 Comment
  UC1197771  Vaccinium cespitosum J. P. Tracy 1906-4-22 2415 Humboldt immediate vicinity Eureka; , Ricks Prairie 0 Comment
  HSC12435  Vaccinium ovatum Gary J. Stebbins 1970-2-21 10 Humboldt Patricks Point State Park 38 Comment
  HSC34153  Vaccinium ovatum Linda M. Barker 1974-5-11 186 Humboldt Redwoods National Park, beside Bald Hills Road 366 Comment
  HSC37342  Vaccinium ovatum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 481 Humboldt Along Lost Man Creek. 38 Comment
  HSC40255  Vaccinium ovatum Linda M. Barker 1976-4-30 1423 Humboldt 3 mi. W of Arcata Comment
  POM118412  Vaccinium ovatum Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  UC1173686  Vaccinium ovatum Joseph P. Tracy 1939-5-30 16304 Humboldt Dinsmore's, along Van Duzen River Van Duzen River 731 Comment
  UCD166883  Vaccinium ovatum Colleen Rossier 2016-9-16 1 Humboldt In vicinity of Red Cap Road, upper side of road, plot Red Cap #1. 264 Comment
  HSC7913  Vaccinium ovatum J. Pursell 1964-10-18 10184 Humboldt 1 mi. N from Hwy. 299 on Bald Mountain Rd. Comment
  HSC57141  Vancouveria hexandra Overton, Butler 1979-7-26 9925 Humboldt Near Willow Creek, close to the town of Willow Creek 1326 Comment
  UC1196350  Vancouveria hexandra J. P. Tracy 1901-6-10 1135 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC30400  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1974-7-17 376 Humboldt Grizzly Creek State Park, along Hwy. 36, between Carlotta and Bridgeville Comment
  CAS-BOT-BC76089  Vancouveria planipetala T. Worley; M. Mill; F. Rosenthal 1985-5-10 61 Humboldt Grays Falls Campground. 240 Comment
  POM272219  Vancouveria planipetala Lyman Benson 1928-7-8 377 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  UC1222526  Veratrum californicum var. californicum Joseph P. Tracy 1950-9-2 19347 Humboldt 2 mi s Field's Landing town (at Still Ranch) 6 Comment
  UC1222525  Veratrum californicum var. californicum Joseph P. Tracy 1950-6-25 18878 Humboldt nw slope Buck Mountain; Burr Valley 1066 Comment
  SD90171  Verbascum blattaria Benjamin C. Stone 1952-6-20 108 Humboldt Open woodland, 8 miles south of Garberville on U.S. 101 Comment
  HSC75284  Verbena menthifolia J. O. Sawyer, D. A. Thornburgh 1980-9-9 4084 Humboldt Mill Creek Lake and surrounding meadows Comment
  HSC100694  Verbena prostrata Carl C. Marshall Jul 1887 327 Humboldt Dry interior valleys. Comment
  UC147878  Veronica americana Joseph P. Tracy 1908-6 2718 Humboldt Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges 762 Comment
  UC175797  Veronica americana Joseph P. Tracy 1912-6-9 3685 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  HSC21211  Veronica persica S. J. Roberts 1965-4-24 15 Humboldt 0.5 mi. S of junction of Iverson and Parton Lanes Comment
  HSC39612  Veronica serpyllifolia subsp. humifusa Thomas W. Nelson, Jane Nelson 1976-6-15 2716 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC48401  Veronica serpyllifolia subsp. humifusa Brad Klipfel 1973-6-10 90 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  POM283765  Veronica serpyllifolia var. humifusa Lyman D. Benson 1928-7-12 478 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  HSC31755  Vicia americana var. americana Donald Spalinger 1974-5-19 73 Humboldt S of Barry Ridge Rd., 1.5 mi. SW of Kneeland School 762 Comment
  UC1197476  Vicia americana var. americana Joseph P. Tracy 1936-6-21 14996 Humboldt near Booth's Run (Iaqua); Iaqua 609 Comment
  HSC104452  Vicia benghalensis Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 22 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC71615  Vicia sativa subsp. nigra J. P. Smith 1973-5-26 6831 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC59115  Vicia sativa subsp. sativa Terry Roth 1979-5-29 93 Humboldt Arcata, corner of Alliance Rd. and Westwood Ct. Comment
  CAS-BOT-BC263950  Viola adunca L. B. Kildale 1927-7-10 3723 Humboldt Gans Prairie, N Bald Hills Road 609 Comment
  CAS-BOT-BC263954  Viola adunca W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula Comment
  UC1198430  Viola adunca J. P. Tracy 1901-6-23 1168 Humboldt immediate vicinity of Eureka 0 Comment
  RSA23651  Viola adunca Carl B. Wolf 1939-7-7 9518 Humboldt Orick to Weitchpec Road 10 miles from Martin's Ferry. 305 Comment
  UC1761536  Viola adunca Mrs. Wilder 1926-4 5432 Humboldt Carlotta, Mrs. Wilder's yard Comment
  HSC85895  Viola glabella Barry Silver 1986-4-23 534 Humboldt Bair Rd., 10 mi. NW of junction with Hwy. 299: Pine Ridge Summit Area 997 Comment
  JEPS80006  Viola glabella Joseph P. Tracy 1932-7-17 10682 Humboldt head of Brett Hole (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  UC668249  Viola glabella Joseph P. Tracy 1938-6-13 15912 Humboldt at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  UC1103561  Viola glabella Joseph P. Tracy 1923-4-8 6178 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC1198452  Viola hallii Eleanor Ethel Tracy 1907-5-1 Humboldt near top of Lawrence Creek Hill; Northern Coast Ranges, Kneeland Prairie 762 Comment
  BLMAR619  Viola praemorsa Jennifer Wheeler 2011-5-24 619 Humboldt Lacks Creek, Stormy saddle 975 Comment
  UC1761534  Viola praemorsa subsp. praemorsa Milo S. Baker 1923-7-25 119 Humboldt Near camp on South Fork Yager Creek, on hillsides. Smallest exposed place near top. Comment
  HSC34797  Viola sempervirens John Palmer 1975-4-9 299 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  JEPS50231  Viola sempervirens Lincoln Constance 1934-5-31 760 Humboldt Bull Creek Flat along Bull Creek (from w boundary of Park to Grasshopper Peak (Squaw Creek)road, n side of creek); Bull Creek Region, South Fork Eel River Comment
  UC502968  Viola sempervirens Joseph P. Tracy 1927-5-15 8063 Humboldt near summit Hoopa Mountain (on road w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  CAS-BOT-BC203052  Vitis californica L. B. Kildale 1930-6-1 9754 Humboldt Klamath River at Bluff Creek Comment
  UC668146  Vitis californica Joseph P. Tracy 1933-9-9 13077 Humboldt Garberville South Fork of Eel River 152 Comment
  CAS-BOT-BC199802  Vulpia Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC198763  Vulpia bromoides Doris K. Kildale 1926-5-2 1857 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  HSC9825  Vulpia bromoides E. W. Styskel 1964-4-3 57 Humboldt 0.25 mi. S of Garberville along Sprowl Creek Rd. Comment
  UC1103714  Vulpia bromoides Joseph P. Tracy 1936-6-17 14960 Humboldt nw slope Buck Mountain; Burr Valley 1066 Comment
  UCD93869  Vulpia microstachys var. ciliata Joseph P. Tracy 1936-7-5 15038 Humboldt Grouse Mountain. Comment
  UC1145190  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-5-29 14825 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  UC277196  Vulpia microstachys var. pauciflora Joseph P. Tracy 1921-5-30 5482 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  CAS-BOT-BC184161  Vulpia microstachys var. pauciflora L. S. Smith 1926-5-26 1837 Humboldt Tahoe National Forest. Last Chance Ridge Comment
  UCD94427  Vulpia myuros Collector unknown 1923-7-12 26 Humboldt Briceland. 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
  UC525643  Vulpia octoflora var. hirtella Joseph P. Tracy 1929-7-4 8618 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  HSC103290  Whipplea modesta Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3013 Humboldt Six Rivers National Forest; ~ 1.75 mi. south of Hwy. 299 on Titlow Hill Road; ~ 1.4 aerial miles west-northwest of Horse Mtn. Radio Tower. 979 Comment
  HSC45649  Whipplea modesta Diane L. Reed 1978-4-22 9 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC27889  Woodwardia fimbriata Clifton Raymond Chesbrough 1973-6-19 71 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UCD136054  Woodwardia fimbriata K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC32231  Wyethia angustifolia J. O. Sawyer 1970-6-24 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC56947  Xerophyllum tenax Overton, Butler 1979-7-23 9437 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  RSA498212  Xerophyllum tenax W. Hutchinson 1927-05 s.n. Humboldt Humboldt County Comment
  HSC100567  Xerophyllum tenax Carl C. Marshall Jun 1885 82 Humboldt Ridge between Redwood and N Fork. Comment
  SEINET12197025  Zauschneria californica E. A. York 1990-1-10 2675 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC43850  Zeltnera muehlenbergii Maralyn O'Meara 1974-7-17 557 Humboldt Kneeland Comment
  HSC8416  Zeltnera muehlenbergii Lincoln Constance 1934-6-4 820 Humboldt Look Prairie and Bull Creek Rd. to Dyerville, South Fork of Eel River Comment
  HSC12700  Zeltnera muehlenbergii Jana Kattenhorn 1970-10-31 159 Humboldt Scotia Bluffs, N bank of Eel River Comment
  HSC73063  Zigadenus micranthus M. A. Baker 1980-6-16 1959 Humboldt Near Onion Mtn. 1280 Comment
  HSC74387  Zigadenus micranthus M. A. Baker 1980-6-28 2505 Humboldt Near Mad River Buttes 1445 Comment
  HSC15746  Zigadenus micranthus D. E. Anderson 1965-6-1 3779 Humboldt Near Brush Mtn. lookout 1216 Comment
  UC1173725  Zigadenus micranthus var. micranthus Joseph P. Tracy 1930-7-6 8840 Humboldt Kneeland Prairie 762 Comment
  UC176186  Zigadenus micranthus var. micranthus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3629 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC275515  Zigadenus micranthus var. micranthus Joseph P. Tracy 1924-7-4 6521 Humboldt Valley South Yager Creek; Northern Coast Ranges, Valley South Yager Creek 762 Comment
  CDA868  Zostera japonica Gordon Leppig 2002-7-8 1783 Humboldt Indian Island, SW shore, mid-intertidal zone, +1.2 MLW. 0 Comment



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