Search Results — 2000 specimen records retrieved (1373 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/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC31139  Abies concolor J. O. Sawyer 1970-6-24 2272 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  CAS-BOT-BC78057  Abies grandis Doris K. Kildale 1927-2-21 2958 Humboldt Bucksport, back of cemetery 30 Comment
  CHSC19504  Abies grandis Wendell Wood 1970-10-7 305 Humboldt Mckinleyville. East end of Chateau Way. 106 Comment
  RSA134610  Abies grandis P. C. Everett, E. K. Balls 1959-10-25 23972 Humboldt 10 mi SW from Ferndale on old coast road to Capetown. 457 Comment
  UC336764  Abies grandis unknown 1901-9-1 Humboldt Eureka Comment
  UC502904  Abies grandis Joseph P. Tracy 1932-3-20 9781 Humboldt Trinidad Northern Coast Region, Trinidad 60 Comment
  HSC55155  Abies procera Gilbert Muth 1979-8-1 12107 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC73215  Abies procera Gail Newton 1980-6-24 603 Humboldt Near Ladder Rock 1570 Comment
  UC1229745  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Horse Trail Ridge Six Rivers National Forest, Horse Trail Ridge (sw slope) 1828 Comment
  HSC41125  Abronia latifolia Thomas W. Nelson, Jane Nelson, James Nelson 1976-9-26 3266 Humboldt Along beach S of Fern Canyon. Comment
  RSA0025082  Abronia latifolia I. L. Wiggins 1930-7-7 4672 Humboldt Sand dunes near Samoa. Comment
  HSC98194  Acacia decurrens Gary J. Stebbins 1970-3-3 16 Humboldt Along Maple Creek Rd. .5 mi. W of Maple Creek Bridge. Comment
  CAS-BOT-BC330545  Acer circinatum Joseph P. Tracy 1933-5-21 12213 Humboldt McClellan Mt., 5 miles E. of Bridgeville 670 Comment
  RSA2926  Acer circinatum Carl B. Wolf 1931-8-29 2368 Humboldt 3 miles north of Orick, Davidsons Ranch on Prairie Creek 61 Comment
  UC170173  Acer glabrum var. glabrum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5821 Humboldt Trinity Summit Comment
  UC205485  Acer glabrum var. glabrum Joseph P. Tracy 1919-9-23 5291 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC98921  Acer glabrum var. torreyi Cara Witte 2007-6-5 211 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  HSC98356  Acer macrophyllum T. Jimerson, J. Pageau 1979-7-31 706 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  SEINET10905087  Achillea Mary Susan Taylor 1982-10-24 Taylor 5173 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  BLMAR746  Achillea millefolium Kate McGrath 2015-7-7 746 Humboldt Samoa Peninsula, Throughout the EPPA 1 Comment
  UC1222918  Achillea millefolium Joseph P. Tracy 1941-8-24 17044 Humboldt near, McKay Camp; South Fork Mountain 1676 Comment
  HSC4547  Achillea millefolium H. E. Parks, S. T. Parks Aug 1943 24246 Humboldt Egg Point, Trinidad 122 Comment
  HSC59675  Achillea millefolium George Kirn 1977-10-12 Humboldt South shore Little River, 1/2 mile from mouth 8 Comment
  RSA120839  Achillea millefolium var. californica S. S. Tillett 1956-7-6 624 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  HSC3335  Achlys triphylla H. E. Parks, S. T. Parks May 1930 752 Humboldt Along Van Duzen River Comment
  CAS-BOT-BC400025  Achlys triphylla Joseph P. Tracy 1933-5-21 12208 Humboldt North Coast Ranges. McClellan Mt. 670 Comment
  RSA452604  Achlys triphylla Anstruther Davidson 1927-01 s.n. Humboldt [Unspecified] Comment
  JEPS47775  Achlys triphylla subsp. triphylla Milo S. Baker 1923-7-29 166 Humboldt along hwy. near Lawrence Creek 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-BC210651  Achnatherum lemmonii Joseph P. Tracy 1933-7-25 12849 Humboldt Grouse Mountain 1524 Comment
  UC1103141  Achnatherum lemmonii Joseph P. Tracy 1926-5-9 7463 Humboldt Valley of South Yager Creek 762 Comment
  UCD51130  Achnatherum occidentale subsp. californicum Don Hagar 1957-8-6 s.n. Humboldt Red Cap Prairie, west of Trinity Summit. 1828 Comment
  HSC79425  Acmispon wrangelianus Kenneth Clark 1980-4-18 607 Humboldt Along access trail to Dead Man's Gulch. 114 Comment
  HSC55637  Aconitum columbianum subsp. columbianum Overton, Butler 1979-7-24 9668 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC56144  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-8-1 11973 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC99842  Aconitum columbianum subsp. viviparum T. Jimerson, J. Pageau 1979-8-10 737 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  CAS-BOT-BC412600  Aconogonon alaskanum Volney Rattan 1883-6-18 s.n. Humboldt Near the summit between Pilot Creek and the Trinity River Comment
  SEINET181253  Adenocaulon bicolor Bassett Maguire, Ruth R. Maguire; C. B. Maguire 1934-6-8 15295 Humboldt Bolling Grove State Park Comment
  HSC97952  Adenocaulon bicolor Cara Witte 2007-6-21 326 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  RSA18020  Adenocaulon bicolor Carl B. Wolf 1927-8-21 s.n. Humboldt In Stephen's Grove Comment
  UC582522  Adenocaulon bicolor Joseph P. Tracy 1933-8-6 12940 Humboldt in shade of trees French Camp Ridge 1066 Comment
  POM182458  Adiantum aleuticum Joseph P. Tracy, H. H. Tracy 1916-6-25 4742 Humboldt Redwood Creek, East of Trinidad 152 Comment
  POM182456  Adiantum jordanii Joseph P. Tracy 1914-5-14 4427 Humboldt Hook Stream banks 122 Comment
  UC1199007  Aesculus californica Joseph P. Tracy 1914-6-14 4497 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC35781  Agastache urticifolia Thomas W. Nelson, B. Reinhardt 1975-7-30 2096 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  POM187915  Ageratina occidentalis Marcus E. Jones 1931-7-16 s.n. Humboldt Junction, East of Arcata. Comment
  UC1222930  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-31 19225 Humboldt 1 mi s, along roadside Friday's Camp; Grouse Mountain 1524 Comment
  UC1222765  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1950-8-4 19258 Humboldt at, (in Bull Creek State Park at head of Canoe Creek) Grasshopper Peak; Canoe Creek, Bull Creek State Park Comment
  UC1222762  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1950-7-6 19006 Humboldt 2 mi s, on Albee Rd Burr Valley 1158 Comment
  RSA249712  Agrostis capillaris R. F. Thorne, P. Everett 1965-8-8 35247 Humboldt N edge of Eureka, E of Hwy in weedy land-fill 5 Comment
  UCD51874  Agrostis capillaris var. aristata A. H. Murphy 1951-6-13 58 Humboldt Tooby and Prior Ranch, 3 miles S of Blocksburg. Comment
  CAS-BOT-BC127297  Agrostis exarata Doris K. Kildale 1927-7-23 3796 Humboldt Near Lasseeks [Lassics] Peaks. Haaglin [Hoagland] Lake. Comment
  RSA12429  Agrostis exarata C. B. Wolf 1994-7-2 5865 Humboldt edge of small lake at Snow Camp. Mts. east of Korbel Comment
  UC1103379  Agrostis exarata Joseph P. Tracy 1935-7-25 14232 Humboldt McKay Prairie Trinity Summit, McKay Prairie 1584 Comment
  UC249865  Agrostis exarata Joseph P. Tracy 1924-7-13 6729 Humboldt in bog Northern Coast Region, Big Lagoon 6 Comment
  UC552715  Agrostis exarata Joseph P. Tracy 1935-5-25 13857 Humboldt Fort Seward 106 Comment
  RSA293142  Agrostis gigantea Thomas W. Nelson, James Nelson 1976-7-28 3046 Humboldt West of Alder Springs along 2S08 1555 Comment
  HSC26369  Agrostis hallii T. O. Osborne 1970-9-16 59 Humboldt Trinidad Bay, Prisoner Rock Comment
  UCD52675  Agrostis hallii P. B. Kennedy 1923-6-14 305 Humboldt Stoddard store, near Garberville. Comment
  UC1152035  Agrostis microphylla Joseph P. Tracy 1951-6-21 19532 Humboldt bed of former Goose Lake (back of Everett Beck house on ranch, Hydesville); bed of former Goose Lake, Everett Beck house on ranch, Hydes Comment
  HSC8806  Agrostis oregonensis R. I. Bonn 1965-10-1 Humboldt 2 mi. N of Bridgeville on Kneeland-Bridgeville Rd. 732 Comment
  RSA152377  Agrostis oregonensis Joseph P. Tracy 1941-8-24 17039 Humboldt South Fork Mountain. Near McKay camp. 1677 Comment
  POM126118  Agrostis pallens Joseph P. Tracy 1900-7-4 876 Humboldt Ocean Beach at Samoa. Comment
  UC186907  Agrostis scabra Joseph P. Tracy 1903-8-9 1929 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC138632  Agrostis stolonifera Joseph P. Tracy 1927-7-16 8253 Humboldt Northern Coast Ranges. Around Humboldt Bay. Mouth of Elk River. 6 Comment
  CDA28152  Agrostis stolonifera H. D. Bowers Sep 1938 s.n. Humboldt Nr Beatrice. 0 Comment
  RSA44451  Agrostis stolonifera Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  HSC8830  Agrostis thurberiana J. P. Tracy 1930-7-16 8931 Humboldt South Fork Mountain: McKay camp. 1677 Comment
  JEPS72938  Aira caryophyllea Lincoln Constance 1934-5-27 704 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (s end, gravel bar of river) 45 Comment
  SEINET5335998  Aira caryophyllea W. D. Billings 1940-6-28 1353 Humboldt 1/4 mi. N of Trinidad Comment
  CAS-BOT-BC138332  Aira caryophyllea var. caryophyllea Doris K. Kildale 1927-6-25 3560 Humboldt Fearren's Ranch between Thorn and Shelter Cove. Comment
  SEINET3427479  Aira elongata H. E. Parks 1931-5-1 Humboldt Big Lagoon Comment
  HSC60371  Alisma triviale Terry Roth 1979-5-29 101 Humboldt Arcata, at the end of H St. 0 Comment
  UC249547  Allium amplectens Joseph P. Tracy 1921-6-12 5813 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC275538  Allium amplectens Joseph P. Tracy 1923-7-4 6530 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  SEINET199677  Allium bolanderi J. P. Tracy 1932-6-14 10139 Humboldt S Fork of Trinity River 0 Comment
  UC3073  Allium bolanderi H. N. Bolander 1866-1 6556 Humboldt Eureka Trail Comment
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Jan 7 2007
  HSC32884  Allium bolanderi var. bolanderi Thomas W. Nelson, James Nelson 1973-5-28 936 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC39003  Allium falcifolium Thomas W. Nelson, Jane P. Nelson 1976-5-31 2651 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC81793  Allium falcifolium Thomas W. Nelson, James Nelson 1980-6-10 5400 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  RSA46682  Allium falcifolium Doris K. Kildale 1937-7-18 15132 Humboldt Horse Mt. Comment
  CAS-BOT-BC476604  Allium unifolium Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC476629  Allium unifolium M. S. Jessel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  HSC99505  Allium validum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 165 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
  UC666889  Allium validum Joseph P. Tracy 1932-7-13 10515 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  JEPS59052  Allotropa virgata W. L. Jepson 1902-7-25 2117 Humboldt Trinity Summit Comment
  CAS-BOT-BC171314  Alnus incana subsp. tenuifolia Joseph P. Tracy 1932-7-15 10605 Humboldt Ridges E of Corral Prairie 1828 Comment
  UC527556  Alnus incana subsp. tenuifolia C. B. Wolf 1931-8-28 2365 Humboldt Redwood Hwy 4 1/2 mi n Fortuna (on road to Eureka) 15 Comment
  UC1193074  Alnus rhombifolia R. E. Nelson 1950-8-31 154 Humboldt 3 mi nw Neafus Peak; Quadrangle 29D1 609 Comment
  CAS-BOT-BC169543  Alnus rubra Alice Eastwood 1907-4-21 2 Humboldt Trinidad Comment
  CDA30678  Alnus rubra M. K. Beyers, I. Shepardson 2009-9-13 242 Humboldt On the western side of the Eel River, on dry, higher ground, adjacent to the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  HSC89484  Alnus rubra P. A. Daly 1984-5-13 22 Humboldt Along trail at Trinidad Head 61 Comment
  RSA24390  Alnus rubra C. B. Wolf 1941-2-22 9917 Humboldt Along Redwood Highway 2.8 miles south of Patricks Point State Park 30 Comment
  RSA28320  Alnus rubra E. K. Balls, P. C. Everett 1953-10-12 18635 Humboldt 5.6 mi. n. of Little River, Hwy 101 between Arcata and Crescent City. 61 Comment
  HSC101973  Alnus viridis subsp. sinuata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 870 Humboldt Patterson Meadows 1566 Comment
  HSC99022  Alnus viridis subsp. sinuata Cara Witte 2008-7-16 908 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC1103316  Alopecurus aequalis Joseph P. Tracy 1924-8-31 6851 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges, Klamath R. 91 Comment
  CAS-BOT-BC138145  Alopecurus aequalis var. aequalis Doris K. Kildale 1927-7-23 3801 Humboldt Hoaglin Lake. Near Lasseck's Peaks. Comment
  UC1100223  Alopecurus geniculatus Malcolm A. Nobs and S. Galen Smith 1949-8-3 1164 Humboldt 1 mi. s. Fields Landing; Eel R. Valley Comment
  HSC8896  Alopecurus pratensis W. F. Cartwright 1965-5-20 78 Humboldt 5 mi. S of Arcata on Old Arcata Rd. Comment
  JEPS27131  Alopecurus saccatus Joseph P. Tracy 1912-7-21 3780 Humboldt Alton Northern Coast Region, Alton 30 Comment
  RSA152369  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Local in wet field. Alton. 30 Comment
  UC1152032  Alopecurus saccatus Joseph P. Tracy 1951-6-21 19525 Humboldt back of Everett Beck house (formerly George Gray) Hydesville (bed of former Goose Lake) Comment
  HSC40260  Ambrosia chamissonis Linda M. Barker 1976-8-2 1674 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  HSC5661  Ambrosia chamissonis J. W. Johnson 1961-8-17 1022 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UC1118432  Ambrosia chamissonis G. T. Nordstrom 1937-7-1 1445 Humboldt 1.6 mi w Orick; Orick Quad. 0 Comment
  SEINET200734  Amelanchier alnifolia J. P. Tracy 1908-6-27 2768 Humboldt Valley of Van Duzen River opposity Buck Mtn 762 Comment
  HSC71057  Amelanchier alnifolia var. semiintegrifolia Thomas W. Nelson, Jane P. Nelson 1977-5-30 3391 Humboldt McKeown Ranch. Along road to Anderson's Ford. 854 Comment
  HSC55599  Amelanchier pallida Overton, Butler 1979-7-23 9413 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  RSA47088  Amelanchier pallida Doris K. Kildale 1926-6-27 2225 Humboldt Little Van Duyen River on bridge on Bridgeville Red Bluff road 640 Comment
  CAS-BOT-BC143016  Amelanchier utahensis Doris K. Kildale 1928-4-29 5959 Humboldt Redwood Creek at Berry's Comment
  UC154229  Amelanchier utahensis Joseph P. Tracy 1908-6 2768 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC902150  Amelanchier utahensis Joseph P. Tracy 1946-7-13 17618 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House) 60 Comment
  RSA509059  Ammophila arenaria Lyman Benson 1929-7-15 1820 Humboldt Clam Beach, Trinidad. Comment
  HSC90482  Amsinckia spectabilis Jean Hanson 1981-5-10 132 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  HSC49034  Anagallis arvensis Patricia Shesgreen 1978-5-5 67 Humboldt 17.4 mi. S of Ferndale on Mattole Rd. 91 Comment
  HSC37358  Anaphalis margaritacea Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 489 Humboldt Along Lost Man Creek. 38 Comment
  UC1197383  Angelica genuflexa Joseph P. Tracy 1937-7-17 15442 Humboldt 2 mi s of Fields Landing (near Still Ranch); Northern Coast Region 6 Comment
  UC642351  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  JEPS14219  Angelica tomentosa Joseph P. Tracy 1938-9-5 16145 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  SEINET13943409 Image available Angelica tomentosa W. A. Weber 1964-1 12204 Humboldt Mountain grade between summit of ridge separating Redwood Creek from Hoopa Valley, a few miles west of Hoopa Comment
  UC906655  Angelica tomentosa Joseph P. Tracy 1949-8-26 18528 Humboldt 3 mi s of Grizzly Camp (Trinity Summit); Trinity Summit 1463 Comment
  HSC58132  Antennaria howellii Gilbert Muth 1979-8-1 12135 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CAS-BOT-BC84701  Anthemis arvensis M. Louise Hutchinson 1913-5-1 s.n. Humboldt Garberville Comment
  UC1100219  Anthoxanthum odoratum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1193 Humboldt at southern outskirts of Eureka Eureka Comment
  UCD56273  Anthoxanthum odoratum Harley P. Chandler 1901-5-1 1106 Humboldt North Coast Ranges, Humboldt Bay. 30 Comment
  UCSB297  Anthoxanthum odoratum Parker, H.; Parks, S. 1952-04 Humboldt Spruce Cove, Trinidad 60 Comment
  HSC58102  Apocynum androsaemifolium G. L. Clifton, Griswold 1979-8-1 12033 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UCSB25082  Apocynum cannabinum Keefe, Joseph 1967-7-8 Humboldt Bank of Ell River, Miranda turnoff, 12.4 miles north of Garberville on U.S. Highway 101 170 Comment
  HSC48762  Aquilegia formosa Brad Klipfel 1973-6-10 98 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC45491  Aquilegia formosa var. formosa Maralyn O'Meara 1972-6-8 102 Humboldt Along Bald Hills Rd. 18 mi. E of junction with Hwy. 101 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
  HSC32848  Arabis glabra Thomas W. Nelson, James Nelson 1973-5-28 944 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC76348  Arabis glabra Denis Kearns 1981-7-22 520 Humboldt Near Whiteys Peak 1487 Comment
  RSA249429  Arabis sparsiflora var. subvillosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5595 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC98725  Arabis subpinnatifida Cara Witte 2007-5-23 93 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  UCSB26628  Aralia californica Keefe, Joseph 1967-7-8 Humboldt Junction Crannell Road and Little River Drive, north of Eureka 6 Comment
  CAS-BOT-BC167256  Aralia californica Doris K. Kildale 1926-11-14 2860 Humboldt Stephen's Grove near Miranda 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
  HSC7595  Arbutus menziesii D. E. Anderson 1965-5-8 3665 Humboldt ca. 5 mi W of Lord Ellis summit along Hwy 299 Comment
  LA41458  Arbutus menziesii Carl Epling; 1933-8-24 sn Humboldt Richardson Grove Comment
  UC1366087  Arbutus menziesii Nancy Ryan Zabriskie and Walter Zabriskie 1969-8-26 233 Humboldt South Fork Eel River below Piercy; South Fork Eel River Comment
  UC412751  Arbutus menziesii Mrs. M. H. Manning Apr. 1902 Humboldt Comment
  UC582722  Arctostaphylos Joseph P. Tracy 1937-4-3 15246 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC902045  Arctostaphylos X candidissima Joseph P. Tracy 1949-8-4 18405 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UCD50491  Arctostaphylos canescens Joseph P. Tracy 1941-4-11 16861 Humboldt Willow Creek Canyon, along Trinity Highway. 609 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-BC25210  Arctostaphylos canescens subsp. canescens J. P. Tracy 1941-4-8 16850 Humboldt Willow Creek Canyon, along Trinity Highway Comment
  CAS-BOT-BC23742  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  CAS-BOT-BC23765  Arctostaphylos columbiana Joseph P. Tracy 1947-5-24 17693 Humboldt Big Lagoon, Devil's Canyon 152 Comment
  CAS-BOT-BC23771  Arctostaphylos columbiana Joseph P. Tracy 1945-3-30 17497 Humboldt Eureka 45 Comment
  CAS-BOT-BC23776  Arctostaphylos columbiana Doris K. Kildale 1926-8-15 2528 Humboldt Willow Creek, Upper Flat 182 Comment
  CAS-BOT-BC23778  Arctostaphylos columbiana P. C. Everett; E. K. Balls 1959-10-26 23975 Humboldt 4 mi. SE from Honeydew, along Old Coast road to Ettersburg. 457 Comment
  CAS-BOT-BC23815  Arctostaphylos columbiana C. Hart Merriam 1921-7-10 s.n. Humboldt 19.5 miles south of Garberville, South fork of the Eel River. Comment
  HSC7723  Arctostaphylos columbiana H. E. Parks Feb 1933 3985 Humboldt Spruce Cove, Trinidad Comment
  JEPS19869  Arctostaphylos columbiana Joseph P. Tracy 1923-3-31 6168 Humboldt around Humboldt Bay; Northern Coast Region, Table Bluff 60 Comment
  JEPS24943  Arctostaphylos columbiana J. E. Adams 1935-5-12 1045 Humboldt Patrick's Point Comment
  RSA622679  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27677 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC1198660  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15440 Humboldt Eureka 45 Comment
  UC535012  Arctostaphylos columbiana H. E. Parks 1931-3-25 917 Humboldt near Patrick's Point Comment
  CAS-BOT-BC23735  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River. Comment
  HSC100468  Arctostaphylos manzanita Carl C. Marshall Apr 1886 397 Humboldt Hoopa Valley. Comment
  HSC48756  Arctostaphylos manzanita Brad Klipfel 1973-6-10 72 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UCSB11333  Arctostaphylos manzanita Nelson, R. 1950-7-26 Humboldt 0.5 mile northwest of Neafus Peak 762 Comment
  CAS-BOT-BC24326  Arctostaphylos manzanita subsp. manzanita L. R. Abrams 1918-6-15 7111 Humboldt Brannan Mt. near Willow Creek. 1371 Comment
  UC32687  Arctostaphylos manzanita subsp. manzanita Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  UC1196873  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 1/2 Humboldt Horse Mountain 1432 Comment
  HSC7704  Arctostaphylos patula J. Pursell 1964-10-17 10171 Humboldt Hoopa in Hoopa Valley Comment
  RSA152314  Arctostaphylos uva-ursi Joseph P. Tracy s.n. Humboldt Eureka. 46 Comment
  UC153963  Arctostaphylos uva-ursi Joseph P. Tracy 1901-4-26 1061 Humboldt Humboldt Hill Northern Coast Region, region about Humboldt Bay 0 Comment
  UC154160  Arctostaphylos uva-ursi Harley P. Chandler May, 1901 1206 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UCR178884  Arctostaphylos uva-ursi R. G. Swinney 1968-4-13 244 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 Comment
  SEINET2031082 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1901-1 1061 Humboldt Region about Humboldt Bay 0 Comment
  RSA2934  Arctostaphylos uva-ursi var. coactilis C. B. Wolf 1931-8-30 2374 Humboldt Samoa. 8 Comment
  RSA47099  Arctostaphylos uva-ursi var. coactilis Doris K. Kildale 1925-9-28 1358 Humboldt Samoa Comment
  RSA636989  Arctostaphylos viscida subsp. viscida Jon E. Keeley 1996-10-13 27788 Humboldt Bald Hills Road, eastern end of Redwood National Park, 223 km W of Hwy 96, N of Eureka. 600 Comment
  UCR141664  Arctotheca calendula J. M. DiTomaso 2000-8-14 s.n. Humboldt W of town of Ferndale, east of Centerville Beach, along Centerville Rd, at Pries Dairy, near Russ Creek 200 Comment
  UCD56478  Aristida oligantha A. H. Murphy 1947-7-1 s.n. Humboldt south of Blocksburg, Tooby and Prior Ranch, K-weed Beetle field. Comment
  HSC22493  Armeria maritima subsp. californica S. V. Thompson 1967-7-24 19 Humboldt Back from beach Comment
  RSA245204  Armeria maritima subsp. californica Jerry Parker 1968-10-14 29 .1 Humboldt Mckinleyville Beach. Comment
  HSC48024  Arnica cernua Brad Klipfel 1974-6-25 423 Humboldt Horse Mtn. Comment
  HSC65884  Arnica cernua M. A. Baker 1980-6-16 1944 Humboldt Near Onion Mtn. 1280 Comment
  UC1199250  Arnica discoidea Joseph P. Tracy 1919-5-31 5170 Humboldt near, at w side of Trinity River Willow Creek; Trinity River 182 Comment
  HSC58301  Arnica diversifolia Overton, Butler 1979-8-2 12575 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  SEINET3098738  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit. Fir woods near Corral Prairie 1520 Comment
  UC922020  Arrhenatherum elatius Joseph P. Tracy 1950-6-15 18781 Humboldt 5 mi n of Harris (near top of Mail Ridge); Mail Ridge 1066 Comment
  CAS-BOT-BC84836  Artemisia douglasiana Doris K. Kildale 1926-8-8 2472 Humboldt Dyerville Bridge 45 Comment
  CAS-BOT-BC90867  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  HSC56136  Aruncus dioicus var. acuminatus G. L. Clifton, Griswold 1979-8-1 11956 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC57145  Asarum caudatum Overton, Butler 1979-7-26 9936 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  RSA296721  Asarum caudatum Clark L. Miller 1979-5-13 1 -129 Humboldt East of Hwy 101 from Seawood Drive. Comment
  RSA96571  Asarum caudatum E. K. Balls 1954-5-31 19496 Humboldt 4 mi. ne of Strongs Station, Van Duzen river, on Yager Road Comment
  SEINET6652462  Asarum caudatum J. P. Tracy 1900-5-22 794 Humboldt Vicinity of Eureka Comment
  SEINET8588609  Asarum caudatum J. D. Freeman, R. F. Freeman 1967-5-7 584 Humboldt Moist low bluff just W of Cal. Hwy 36 and just N of Carlotta. Comment
  CDA30679  Aster chilensis M. K. Beyers, I. Shepardson 2009-9-13 252 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
  UCR51819  Aster occidentalis var. occidentalis Thomas W. Nelson, J. Nelson 1977-9-3 3726 Humboldt Along creek draining north from pond above Alder Spring 1445 Comment
  CDA15293  Aster radulinus P. Haggard 1998-11-18 s.n. Humboldt North Coast; Bald Hills Rd. in Redwood National Park E of Orick. 822 Comment
  RSA135343  Astragalus rattanii var. rattanii Volney Rattan 1884-1 s.n. Humboldt Big Creek. Comment
  UC160968  Astragalus umbraticus Mrs. M. H. Manning 1901-7-27 306 Humboldt near Hupa (Hoopa) (Bald Hills); near Hupa (Hoopa), Bald Hills Comment
  HSC76274  Asyneuma prenanthoides Denis Kearns 1981-7-23 370 Humboldt Near Whiteys Peak 732 Comment
  CAS-BOT-BC69520  Athyrium filix-femina subsp. cyclosorum L. R. Abrams 1916-7-11 6053 Humboldt At mouth of Grizzly Creek on Van Duzon 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
  RSA692532  Athyrium filix-femina subsp. cyclosorum Anstruther Davidson 1923-8-10 17066 Humboldt Near Bridgeville Comment
  HSC41335  Athyrium filix-femina var. cyclosorum Brad Klipfel 1974-9-7 565 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  HSC55038  Athyrium filix-femina var. cyclosorum Gilbert Muth 1979-7-31 11498 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  SDSU1603  Athyrium filix-femina var. cyclosorum D. R. Harvey 1938-8-13 2252 Humboldt Redwood Park. Comment
  JEPS35140  Athyrium filix-femina var. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt hill above Weott Comment
  UC503069  Athyrium filix-femina var. cyclosorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9008 Humboldt near McKay Camp S Fork Mt; Northern Coast Ranges 1676 Comment
  HSC9009  Avena barbata R. H. Berg 1963-5-4 63 Humboldt Bridgeville Comment
  UC526702  Avena fatua Joseph P. Tracy 1930-6-29 8824 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope) Comment
  HSC37666  Baccharis douglasii R. Sutherland 1976-8-19 14 .19876 Humboldt 236 Comment
  UC249846  Baccharis glutinosa Joseph P. Tracy 1924-8-10 6810 Humboldt Van Duzen River, Blue Slide 91 Comment
  CAS-BOT-BC98033  Baccharis pilularis Henry M. Pollard 1947-8-30 s.n. Humboldt North river - road near Redcap Creek, Orleans region 1 Comment
  CAS-BOT-BC99406  Baccharis pilularis Carl B. Wolf 1927-8-29 1219 Humboldt Seacoast, [Devil's] Devils Gate, south of Cape Mendocino Comment
  UC535754  Baccharis pilularis Eleanor Armstrong 1934-8-30 1200 Humboldt Richardson Grove 121 Comment
  CAS-BOT-BC99989  Balsamorhiza deltoidea Harold E. Parks; Joseph P. Tracy 1935-6-16 11282 Humboldt Buck Mt. Lower NW slopes 792 Comment
  HSC34805  Bellis perennis Dryden 1975-4-21 125 Humboldt Arcata Comment
  UC581761  Bellis perennis Joseph P. Tracy 1937-6-20 15345 Humboldt 10 mi upstream from mouth Bear River 152 Comment
  RSA114084  Bensoniella oregona R. C. Bacigalupi, Constance, Trqacy, Moran, Rodriguez, Carlquist 1951-6-14 3410 Humboldt High Prairie, on long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) 1067 Comment
  UC9759  Berberis aquifolium Harley P. Chandler 1901-1 1277 Humboldt Hupa Indian Reservation 1097 Comment
  HSC3348  Berberis nervosa Eugene Andreuccetti 1964-5-2 36 Humboldt 5 mi. W of Willow Creek on Hwy. 299 Comment
  HSC3349  Berberis nervosa John A. Dubois 1962-4-28 15 Humboldt 20 mi. E of Arcata Comment
  HSC35016  Berberis pinnata Thomas W. Nelson 1975-5-24 1880 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC412985  Bistorta bistortoides Doris Kildale 1931-5-10 10678 Humboldt Snow Camp Comment
  HSC45419  Bistorta bistortoides Thomas W. Nelson, Jane P. Nelson 1977-7-4 3595 Humboldt Margin of pond above Alder Springs 1585 Comment
  SD51258  Blechnum spicant Darley F. Howe 1961-8-1 Humboldt 3 mi. N of Arcata on #101. Comment
  HSC91603  Blechnum spicant E. Mackey 1986-10-24 Humboldt Patrick's Point State Park, by trail to Agate Beach Comment
  POM319594  Blechnum spicant Patricia Wilder 1968-8-21 4382 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  UCD114326  Boechera divaricarpa Joseph P. Tracy 1932-7-11 10396 Humboldt Trinity Summit. Open ground at corral prairie, Klamath Mountains. 1524 Comment
  JEPS53081  Boechera retrofracta H. P. Chandler Jun 1901 1511 Humboldt Klamath River Comment
  HSC913  Botrychium multifidum D. K. Walker 1968-11-6 Humboldt Clam Beach, old railroad cut below Vista Point lookout on Hwy. 101 about 1.5 mi. S of Trinidad Comment
  CAS-BOT-BC420255  Boykinia occidentalis John Thomas Howell 1931-6-17 6722 Humboldt 18 miles n. of Arcata on Redwood Highway Comment
  CAS-BOT-BC420264  Boykinia occidentalis L. B. Kildale 1930-6-1 9746 Humboldt Klamath River at Weitchpec Comment
  SBBG34704  Boykinia occidentalis H. and M. Dearing 1939-5-26 3451 Humboldt redwood forest N of Trinidad Comment
  HSC6584  Brassica rapa Richard Steele 1962-2-25 2 Humboldt Arcata, 0.5 mi. W of HSU campus 15 Comment
  CAS-BOT-BC106295  Brickellia californica S. K. Harris; Mrs. C. M. Wilder 1938-9-8 877 Humboldt Bars on Van Duzen River, below Blue Slide Comment
  HSC25983  Brickellia californica Thomas W. Nelson 1970-9-3 232 Humboldt Mad River. Comment
  SEINET5781061 Image available Brickellia californica S. K. Harris, C. M. Wilder 1938-9-8 Humboldt Van Duzen River, below Blue Slide Comment
  UC1173667  Brickellia greenei Joseph P. Tracy 1939-8-16 16401 Humboldt Horse Mountain 1432 Comment
  HSC61765  Briza maxima Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan Comment
  HSC9085  Briza maxima S. R. Johnson 1965-5-2 50 Humboldt Luffenholz Beach near parking area Comment
  RSA614433  Briza maxima K. L. Chambers 1993-5-5 5717 Humboldt Hwy. 101, where it meets the ocean just south of Orick. Comment
  HSC66126  Briza minor J. P. Smith, Steve Selva 1970-6-14 3825 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC37551  Briza minor Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5473 Humboldt Elk Prairie Comment
  JEPS7726  Brodiaea elegans subsp. elegans W. L. Jepson 1902-6 1960 Humboldt Hupa Road Redwood Creek (Redwood Creek) Comment
  UC1197746  Brodiaea elegans subsp. elegans J. P. Tracy 1906-7-4 2529 Humboldt near Hydesville (gravel bars on creek); Yager Creek 91 Comment
  UC1197748  Brodiaea elegans subsp. elegans Joseph P. Tracy 1942-6-15 17163 Humboldt grassy bench 1/2 mi ne Garberville 304 Comment
  RSA249396  Brodiaea stellaris D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5697 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC3017  Brodiaea terrestris subsp. terrestris D. E. Anderson 1963-5-25 2493 Humboldt 4 mi. W of Petrolia Comment
  HSC90775  Brodiaea terrestris subsp. terrestris Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC45072  Brodiaea terrestris subsp. terrestris R. Sutherland 1978-5-12 5 .12578 Humboldt McKee Flat 288 Comment
  HSC91591  Brodiaea terrestris subsp. terrestris E. Mackey 1986-6-18 Humboldt Patrick's Point State Park on Ceremonial Rock Comment
  CAS-BOT-BC144348  Bromus W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  HSC9142  Bromus carinatus var. carinatus W. F. Nickel 1965-3-17 Humboldt Humboldt State College campus behind College Elementary School. Comment
  SEINET201047 Image available Bromus carinatus var. carinatus Joseph P. Tracy 1926-5-2 7424 Humboldt Roadside weed,Trinity River Valley, near the South fork. 183 Comment
  UC526866  Bromus carinatus var. carinatus Joseph P. Tracy 1925-7-5 7162 Humboldt High Prairie on Bald Mountain High Prairie; Northern Coast Ranges, Bald Mountain, High Prairie 1066 Comment
  UC552775  Bromus carinatus var. carinatus Harold E. Parks and Joseph P. Tracy 1935-6-8 11268 Humboldt Trinidad 60 Comment
  CAS-BOT-BC155847  Bromus catharticus var. elatus W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  UCD60204  Bromus catharticus var. elatus A. H. Murphy 1947-8-19 s.n. Humboldt Fairground's exper. area. Fortuna. Comment
  HSC40340  Bromus diandrus Linda M. Barker 1976-4-30 1403 Humboldt 3 mi. W of Arcata Comment
  HSC45110  Bromus diandrus R. Sutherland 1978-5-13 4 .13578 Humboldt Mattole River. 282 Comment
  HSC9294  Bromus diandrus R. T. Forester 1963-4-30 53 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC37852  Bromus hordeaceus Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  UC1103367  Bromus hordeaceus Joseph P. Tracy 1920-5-18 5322 Humboldt Northern Coast Ranges, Look Prairie, on Bull Creek Bull Creek; Northern Coast Ranges, Look Prairie, Bull Creek 152 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
  UCD58705  Bromus hordeaceus Linda M. Barker 1976-5-13 1477 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC2600  Bromus inermis William J. Ferlatte, B. D. Rogers 1966-8-15 3123 Humboldt 6 mi. E of Korbel; Cutoff Red wood Comment
  SBBG30039  Bromus rubens L. Larsen 1935-5-28 Humboldt Redway Comment
  UCD60234  Bromus vulgaris P. B. Kennedy 1923-8-3 s.n. Humboldt South of Scotia. Comment
  HSC74075  Calamagrostis foliosa Joyce Walker 1980-8-21 Humboldt Comment
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May 26 2013
  SBBG83771  Calamagrostis koelerioides J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  UC1103691  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1913-5-11 4073 Humboldt Eureka Northern Coast Region (at Stephen Hill place) 0 Comment
  UC144080  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1909-5-23 2974 Humboldt 4 mi se Eureka (at Connick Claim) 0 Comment
  SDSU1330  Callitriche palustris D. F. Howe 1972-6-30 4847 Humboldt Trinidad. Comment
  UC1197698  Calochortus amabilis Mrs. Eri Eaton 1911-5-27 Humboldt near South Fork of Eel River; Phillipsville 304 Comment
  HSC15377  Calochortus tolmiei D. E. Anderson 1965-5-15 3559 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek, above Trinity River Comment
  HSC15383  Calochortus tolmiei D. E. Anderson 1963-5-25 2479 Humboldt 2-3 mi. N of Capetown Comment
  CAS-BOT-BC496520  Calochortus tolmiei Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka 762 Comment
  UC1197686  Calochortus tolmiei Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3637 Humboldt near Eureka (Ocean View Cemetery); Northern Coast Region 0 Comment
  RSA0120938  Caltha biflora Joseph P. Tracy 1951-6-14 19408 Humboldt Snow Camp. 1402 Comment
  CAS-BOT-BC275368  Calycadenia truncata var. truncata Harley P. Chandler 1901-6-1 1492 Humboldt Klamath River 426 Comment
  HSC38745  Calypso bulbosa J. D. Ackerman 1976-4-26 753 Humboldt 1.5 mi. E of Blue Lake Simpson demonstration forest near highway. Comment
  HSC49391  Calypso bulbosa R. York 1979-4-21 246 Humboldt Behind the town of Korbel Comment
  HSC54024  Calyptridium monospermum Griswold, Butler 1979-7-12 7193 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC23151  Calystegia occidentalis subsp. occidentalis Harley P. Chandler June, 1901 1418 Humboldt Klamath River , Klamath River (North Coast Ranges) 304 Comment
  UC562491  Calystegia purpurata Joseph P. Tracy 1927-7-24 8298 Humboldt Upper Mattole 152 Comment
  HSC40941  Calystegia soldanella Linda M. Barker 1976-6-1 1559 Humboldt 3 mi. W of Arcata Comment
  HSC6365  Calystegia soldanella R. E. Hafenfeld 1965-5-9 58 Humboldt Near mouth of Ossagon Cr. on Gold Bluff Beach Comment
  UC584209  Calystegia soldanella David D. Keck and J. Clausen 1935-6-16 3384 Humboldt mouth of Little River Comment
  CAS-BOT-BC493387  Camassia quamash subsp. linearis Doris Kildale 1931-5-10 10687 Humboldt Snow Camp Comment
  LA206042  Camissoniopsis cheiranthifolia C. C. Harris; S. K. Harris 1939-8-23 sn Humboldt Samoa 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
  CAS-BOT-BC160247  Camissoniopsis cheiranthifolia subsp. cheiranthifolia L. R. Abrams 1916-7-18 6020 Humboldt Arcata toTrinidad Comment
  SEINET10939001  Campanula prenanthoides Overton 1979-7-24 OVERTON 9585 Humboldt Near Titlow Hill, on the Willow Creek quad., close to the town of Willow Creek 1250 Comment
  UC602534  Campanula prenanthoides Joseph P. Tracy 1934-8-23 13600 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  SEINET10462988  Campanula prenanthoides Van Dke 1931-6-30 VAN DYKE s.n. Humboldt Willow Creek Comment
  SEINET10463306  Campanula prenanthoides Pollard 1948-7-23 POLLARD s.n. Humboldt REECE POINT NEAR ORLEANS Comment
  SEINET10463747  Campanula scouleri Overton 1979-7-23 OVERTON 9497 Humboldt Near Titlow Hill, on the Willow Creek quadrangle, close to the town of Willow Creek 1280 Comment
  SEINET10463446  Campanula scouleri Howard S. Irwin 1975-8-16 Irwin s.n. Humboldt GROGANS HOLE AREA. T8N R6E SEC. 16 Comment
  SEINET10463519  Campanula scouleri Nelson 1975-7-15 NELSON 2031 Humboldt FRENCH CAMP, BALD HILLS SERPENTINE OUTCROP. T9N R3E SEC. 28 Comment
  SEINET10463600  Campanula scouleri Sawyer 1980-9-9 SAWYER 4085 Humboldt MILL CREEK LAKE & SURROUNDING MEADOWS WHITE FIR FOREST SALMON MTN.QUAD. T8N R6E SEC. 3 Comment
  UC1199214  Capsella bursa-pastoris Joseph P. Tracy 1935-4-20 13790 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC203897  Cardamine breweri Joseph P. Tracy 1918-4-28 4891 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UCD114499  Cardamine californica Parks; Tracy 1931-3-26 0916 Humboldt lower Van Duzen River. 60 Comment
  HSC104050  Cardamine nuttallii E. R. Fyer 2015-3-19 5 Humboldt Six Rivers National Forest; along the East Fork of Willow Creek, off Hwy. 299. 505 Comment
  UC492258  Cardamine nuttallii Joseph P. Tracy 1932-7-15 10599 Humboldt ridges e Corral Prairie (Trinity Summit); Klamath Mountains, , e of Corral Prairie 1828 Comment
  HSC6639  Cardamine oligosperma S. J. Hawks 1965-3-12 4 Humboldt 0.5 mi. W of Fairhaven Comment
  HSC6645  Cardamine oligosperma Lincoln Constance 1934-5-31 745 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
  JEPS79828  Cardaria draba Joseph P. Tracy 1933-5-19 12201 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  SEINET10932251  Cardionema ramosissimum Mary Susan Taylor 1990-8-22 Taylor 6085 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  UC1222955  Carduus tenuiflorus Joseph P. Tracy 1950-6-8 18740 Humboldt on s side of Cape Ridge; Bear River, Capetown, Cape Ridge 30 Comment
  UC726350  Carex A. A. Heller 1930-8-4 14995 Humboldt Little River Comment
  HSC70463  Carex amplifolia Gail Newton 1980-7-20 1640 Humboldt Near Bell Swamps 1426 Comment
  JEPS25971  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 13504 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  UC562287  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 13504 Humboldt along coast in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 6 Comment
  HSC95660  Carex arcta Juha Pykala, D. H. Norris 1987-6-5 1436 Humboldt E of Maple Creek, Lake Prairie 1052 Comment
  CHSC45707  Carex barbarae L. P. Janeway 1984-4-28 750 Humboldt Along W side of S Fk Eel River at Butte Cr; across the river from Miranda. 67 Comment
  RSA364615  Carex barbarae Henry M. Pollard 1948-7-29 s.n. Humboldt At Woodson Mine, near Orleans. Comment
  SEINET10706572  Carex bolanderi Huron H. Smith 1911-1 Smith 3834 Humboldt Comment
  CHSC23306  Carex buxbaumii Robert F. Thorne; P. Everett 1965-8-9 35293 Humboldt Big Lagoon. 3 Comment
  HSC45435  Carex buxbaumii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4397 Humboldt Along FS 2S08 near Pine Mtn. 1463 Comment
  UC562435  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon 3 Comment
  UC303016  Carex concinnoides Joseph P. Tracy 1926-5-2 7447 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
  JEPS63744  Carex concinnoides Joseph P. Tracy 1926-5-30 7519 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
  HSC61628  Carex cusickii Ruby Van Deventer 1959-6-20 Humboldt Humboldt/Del Norte County line, Onion Lake 1220 Comment
  HSC61629  Carex cusickii Ruby Van Deventer 1959-6-20 Humboldt Humboldt/Del Norte County line, Onion Lake Comment
  CAS-BOT-BC34977  Carex densa Joseph Prince Tracy 1935-5-25 13855 Humboldt Fort Seward. 106 Comment
  HSC69863  Carex densa Thomas W. Nelson, Ken Hindley 1978-5-28 4086 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  UC302098  Carex deweyana subsp. leptopoda Joseph P. Tracy 1912-7-25 3815 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC562273  Carex echinata Joseph P. Tracy Jul 16 1930-Jul 19 1930 8986 Humboldt in meadow at McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  CHSC97053  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common in northern section. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  HSC96492  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  CHSC42988  Carex exsiccata L. P. Janeway 1987-7-30 2532 Humboldt At Dry Lagoon. Middle of lagoon. 3 Comment
  UC1103079  Carex feta Joseph P. Tracy 1936-6-3 14846 Humboldt at Willow Creek Trinity River Valley 152 Comment
  SEINET7827267 Image available Carex fracta J. P. Tracy 1950-7-2 18963 Humboldt "Fern Spring;" Happy Camp Mountain (Trinity Summit Range, 6 mi NE of Hawkins Bar.) Comment
  SEINET7561208 Image available Carex gynodynama M. J. Waterway, M. J. Lechowicz 1984-4-22 3057 Humboldt About 10 mi E of Arcata on Maple Creek Road, 6 mi W of jct with Butler Valley Road. Comment
  CAS-BOT-BC21751  Carex hassei Joseph Prince Tracy 1927-4-23 7917 Humboldt Big Lagoon. 6 Comment
  HSC102204  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1119 Humboldt Patterson Meadows 1555 Comment
  HSC75762  Carex hoodii Denis Kearns 1981-7-22 318 Humboldt Near Whiteys Peak 1487 Comment
  CAS-BOT-BC7565  Carex integra Joseph Prince Tracy 1935-7-23 14139 Humboldt Trinity Summit. Open places at Corral Prairie. 1584 Comment
  CAS-BOT-BC35563  Carex jonesii Joseph Prince Tracy 1935-7-26 14257 Humboldt Trinity Summit, Meadows at Water Dog Lakes 1828 Comment
  CHSC90280  Carex jonesii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8601 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  HSC102152  Carex laeviculmis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1059 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC31465  Carex leptopoda Joseph Prince Tracy 1936-6-9 14902 Humboldt Mattole Valley, 4 mi SE of Petrolia. 60 Comment
  CAS-BOT-BC31470  Carex leptopoda Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon. Comment
  HSC76778  Carex leptopoda L. P. Janeway 1983-5-15 296 Humboldt Bend of Mad River on S side, near the Fish Hatchery Rd. and across from Blue Lake 24 Comment
  SEINET10710158  Carex leptopoda David Castaner 1984-5-28 Castaner 8066 Humboldt Patrick State Park. Redwood Forest area. Comment
  CHSC85570  Carex mendocinensis L. P. Janeway 2003-7-30 7944 Humboldt High North Coast Ranges. White Rock Spring, just above Clear Lake, on southwest side below Titlow Hill Road, 2.9 km southeast of Titlow Hill. 1512 Comment
  HSC102227  Carex multicostata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1148 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  CAS-BOT-BC119537  Carex nudata Joseph Prince Tracy 1935-6-22 13959 Humboldt Eel River, at mouth of Larrabee Creek. Comment
  HSC39186  Carex nudata D. E. Anderson, J. P. Smith 1971-6-28 1214 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC48135  Carex nudata D. H. Norris 1971-7-17 19598 Humboldt Along Redwood House Rd., 4 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  HSC7071  Carex obnupta J. W. Johnson 1961-9-3 1081 Humboldt Arcata, Christenson Farm, Samoa Peninsula Comment
  JEPS80020  Carex obnupta Joseph P. Tracy 1912-6-16 3701 Humboldt above edge of salt marsh at Hookton Northern Coast Region, Humboldt Bay, Hookton 0 Comment
  UC196571  Carex obnupta Joseph P. Tracy 1916-5-31 4696 Humboldt along Eel River from South Fork to Scotia; Northern Coast Ranges, Holmes Flat 60 Comment
  CAS-BOT-BC119270  Carex ovalis Joseph Prince Tracy 1936-6-28 15014 Humboldt Bald Mt. Borders of ditch in woods near Murphy Meadow. 1066 Comment
  UC585634  Carex ovalis Joseph P. Tracy 1937-8-7 15617 Humboldt Murphy Ridge Bald Mt. 914 Comment
  UC1152077  Carex pachycarpa Joseph P. Tracy 1950-7-25 19064 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC302099  Carex pachystachya Joseph P. Tracy 1911-7-7 3390 Humboldt three mi nw junction of Willow Creek with Trinity River (at meadows on mt. side, near Beebe's Ranch); Northern Coast Ranges; NW of junction of Willow Creek w/ Trinity River, Humboldt Co., near Beebe's Ranch. 914 Comment
  UC709399  Carex pachystachya Joseph P. Tracy 1938-7-18 16083 Humboldt Eureka 30 Comment
  CAS-BOT-BC119239  Carex pachystachya Joseph Prince Tracy 1939-7-9 16324 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  SEINET10883545  Carex pachystachya Joseph P. Tracy 1935-6-8 Tracy 13938 Humboldt Eureka. Damp place in open ground. Comment
  UC709398  Carex pachystachya Joseph P. Tracy 1938-6-15 15933 Humboldt vicinity Carlotta 30 Comment
  UC194803  Carex pansa Joseph P. Tracy 1911-6-25 3258 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC119165  Carex pansa David Daniels Keck 1938-8-5 4766 Humboldt Calm Beach in dunes. Comment
  UC562258  Carex pansa Joseph P. Tracy 1935-7-18 14104 Humboldt next to Table Bluff (around Humboldt Bay); around Humboldt Bay 3 Comment
  SEINET958239  Carex rossii H. E. Parks, Joseph P. Tracy 1933-1 12161 Humboldt Vicinity of Trinidad 61 Comment
  HSC58704  Carex rostrata Terry Griswold, Butler 1979-7-11 7097 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC82401  Carex scopulorum var. bracteosa Thomas W. Nelson 1979-7-11 5013 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC104335  Carex serratodens James Regan, Humboldt Redwood Co., LLC Jun 2011 32 Humboldt Kneeland, near Kneeland Airport 854 Comment
  HSC45950  Carex straminiformis J. P. Smith, Steve Selva 1970-7-30 4132 Humboldt Comment
  CAS-BOT-BC116941  Carex subbracteata Harley Pierce Chandler 1901-5-1 1115 Humboldt Humboldt Bay 30 Comment
  RSA783710  Carex subbracteata P. F. Zika 2009-6-16 24500 Humboldt Outer North Coast Range: Above Route 299, 0.7 road mi W of Berry Summit. 780 Comment
  UC562634  Carex subbracteata Joseph P. Tracy 1936-6-9 14904 Humboldt Upper Mattole 121 Comment
  CAS-BOT-BC116906  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-23 4822 Humboldt Bridgeville Comment
  CAS-BOT-BC116673  Carex subfusca Doris K. Kildale 1927-7-22 3826 Humboldt Lassecks Peaks, Coral Goat Camp. 1661 Comment
  HSC102155  Carex subfusca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1063 Humboldt Patterson Meadows 1555 Comment
  UC1103577  Carex subfusca Joseph P. Tracy 1936-6-10 14916 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1103117  Carex tumulicola Joseph P. Tracy 1919-5-31 5153 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC197216  Carex tumulicola Joseph P. Tracy 4104 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC249554  Carex unilateralis Joseph P. Tracy 1921-6-12 5828 Humboldt Butler Valley 152 Comment
  CAS-BOT-BC115544  Carex unilateralis Joseph Prince Tracy 1941-6-29 16935 Humboldt Large dense clump, Hettenshaw Valley 944 Comment
  CHSC90278  Carex utriculata Thomas W. Nelson; Jane P. Nelson 1987-6-11 8607 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  UC1152050  Carex utriculata Joseph P. Tracy 1950-8-7 19264 Humboldt Box Camp Trinity Summit 1463 Comment
  SEINET10750362  Carex viridula Harold E. Parks Parks 5214 Humboldt Abundant in center of Dry Lagoon, south of Orick, Humboldt County. Comment
  HSC20571  Castilleja affinis subsp. litoralis R. E. Hafenfeld 1965-5-9 29 Humboldt 1/2 mi. S of Squashan Cr. Jct. Gold Bluff Beach Rd. Comment
  HSC1974  Castilleja ambigua subsp. humboldtiensis D. E. Anderson, N. Dennis 1965-6-8 100 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  JEPS26223  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1909-9-19 3100 Humboldt Samoa North Coast Region, Humboldt Bay Region 0 Comment
  RSA33409  Castilleja ambigua subsp. humboldtiensis Doris K. Kildale 1926-6-25 2171 Humboldt Big Lagoon. Comment
  HSC64182  Castilleja applegatei subsp. pinetorum J. O. Sawyer, M. A. Ericksen 1979-6-23 3393 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  CAS-BOT-BC255522  Castilleja applegatei var. pinetorum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1371 Comment
  JEPS2925  Castilleja arachnoidea W. L. Jepson Jul 16 1902-Jul 23 1902 2054 Humboldt Trinity Summit 2133 Comment
  JEPS15207  Castilleja exserta subsp. exserta R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quad. Comment
  UC582576  Castilleja foliolosa Joseph P. Tracy 1934-7-9 13329 Humboldt 5 mi s Harris; Mail Ridge 762 Comment
  JEPS3830  Castilleja miniata Joseph P. Tracy 1939-8-20 16329 Humboldt near Blue Lake; Mad River 15 Comment
  HSC100658  Castilleja parviflora Carl C. Marshall May 1885 57 Humboldt Hills generally. Comment
  HSC41299  Castilleja pruinosa Brad Klipfel 1974-7-27 498 Humboldt Horse Mtn. Comment
  UC1196744  Castilleja pruinosa Joseph P. Tracy 1912-7-26 3862 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC72569  Castilleja pruinosa J. P. Smith, J. O. Sawyer 1976-5-2 8628 Humboldt S. R. 96, 4.9 mi. N of its junction with S.R. 299 122 Comment
  UC902253  Castilleja pruinosa Joseph P. Tracy 1949-6-25 18341 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC1502126  Ceanothus R. Sutherland 1975-7-1 3 .1.7 75 Humboldt along Baker Creek; Garberville Quad., along Baker Creek 335 Comment
  CAS-BOT-BC64975  Ceanothus arcuatus D. H. Wilken; E. L. Painter 2007-6-4 16738 Humboldt Titlow Road, 1.3 linear km SW of summit of Horse Mountain, W of head of Horse Mtn Crk. 1325 Comment
  CAS-BOT-BC49317  Ceanothus cuneatus Doris K. Kildale 1926-8-15 2538 Humboldt Hoopa Mountain near Old Mill 579 Comment
  HSC73442  Ceanothus cuneatus Gail Newton 1980-7-11 1311 Humboldt Near Red Mtn. 1341 Comment
  UC1071074  Ceanothus cuneatus var. cuneatus A. E. Wieslander 1931-5-19 201 Humboldt near Orleans. Hoopa quad., Klamath Nat. For. Comment
  CAS-BOT-BC49655  Ceanothus foliosus var. foliosus Dr. A. Kellogg; W. G. W. Harford 1868-1-1 s.n. Humboldt Red Mt. Route Comment
  POM118617  Ceanothus incanus Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  UC1502128  Ceanothus incanus R. Sutherland 1975-5-13 1 Humboldt Shelter Cove at King Range sign Garberville Quad. Comment
  UC166023  Ceanothus integerrimus Joseph P. Tracy 1911-7-7 3427 Humboldt ridge to n Willow Creek (between Willow and Campbell Creek, near summit.); Brannan Mtn., Northern Coast Ranges 1219 Comment
  CAS-BOT-BC51145  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CHSC70041  Ceanothus oliganthus var. sorediatus J. R. McFarland 1997-4-10 Humboldt King Range National Conservation Area. 3.7 miles north on King Range road from Shelter cove road. 601 Comment
  HSC37082  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-5-8 6 .8575 Humboldt County rd. 4 mi SE of Honeydew 259 Comment
  CAS-BOT-BC51220  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  RSA1039  Ceanothus parryi E. R. Johnson 1928-8-25 1143 Humboldt Eureka 30 Comment
  CAS-BOT-BC53063  Ceanothus pumilus Clarence R. Quick 1959-7-24 59 -34 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC23276  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1293 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  HSC43227  Ceanothus pumilus R. Sutherland 1976-4-25 2 .25476 Humboldt Comment
  HSC43230  Ceanothus pumilus R. Sutherland 1976-4-17 4 .17476 Humboldt 549 Comment
  UC170018  Ceanothus pumilus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5647 Humboldt Hoopa Mountain North Coast Ranges, Hoopa Mountain Comment
  CAS-BOT-BC52997  Ceanothus thyrsiflorus Harold Paul Olmo 1934-6-8 s.n. Humboldt 5 miles n. of Trinidad Comment
  HSC45481  Ceanothus thyrsiflorus Maralyn O'Meara 1973-2-9 127 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  UC1071395  Ceanothus thyrsiflorus G. T. Nordstrom Jul 1934 1426 Humboldt 1 mi nne Orick; Orick Quad. 3 Comment
  JEPS42234  Ceanothus velutinus W. L. Jepson 1932-7-24 16382 Humboldt Fruitland Mail Ridge Comment
  JEPS44147  Centaurea melitensis Lincoln Constance 1934-6-11 852 Humboldt lower Look Prairie (and Bull Creek road to Dyerville); Bull Creek Region, South Fork Eel River Comment
  HSC100711  Centaurea melitensis Carl C. Marshall Jun 1886 287 Humboldt Hooker's near Hoopa. Comment
  CDA7306  Centaurea nigra K. E. Frick 1961-8-16 Humboldt Eureka. Near fairgrounds. 0 Comment
  SEINET200746  Centaurium erythraea Joseph P. Tracy 1934-7-9 13347 Humboldt Dobbyn Creek. Comment
  RSA69417  Centaurium muehlenbergii F. W. Peirson 1923-7-10 3803 Humboldt Garberville. Comment
  UC162716  Centaurium muehlenbergii Joseph P. Tracy 1911-7-10 3485 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC4096  Cerastium arvense Doris K. Kildale 1925-6-28 814 Humboldt Kneeland Prairie Comment
  UC465826  Cerastium arvense Harley P. Chandler June, 1901 1354 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Valley, Hupa Indian Reservation 152 Comment
  UC8232  Cerastium arvense H. N. Bolander 1867-1 6520 Humboldt E. Fork Eel R. 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
  UCSB1850  Cerastium glomeratum Parks, H.; Parks, S. 1944-04 Humboldt Spruce Cove, Trinidad 60 Comment
  HSC89494  Cerastium glomeratum P. A. Daly 1986-2-28 56 Humboldt Trinidad Head, along trail 61 Comment
  HSC41288  Chamaecyparis lawsoniana Brad Klipfel 1974-7-27 482 Humboldt Horse Mtn., along Ruby Creek Comment
  SEINET11739818  Chamaecyparis lawsoniana F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -302 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  UC170197  Chamaesyce serpyllifolia Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5710 Humboldt Hoopa Valley Comment
  UC144090  Chamerion angustifolium subsp. circumvagum J. P. Tracy 1903-8-9 1938 Humboldt Immediate vicinity of Eureka 0 Comment
  UC562419  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1935-7-28 14322 Humboldt head of Devil's Hole Trinity Summit 1828 Comment
  HSC82123  Cheilanthes gracillima Thomas W. Nelson 1979-7-11 4997 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC99137  Cheilanthes gracillima C. Witte 2008-10-18 1062 Humboldt Horse Mountain Botanical Area. Approxmiately 1 mile north of Horse Mountain Communication Towers. Forest Service Road 6N66 1456 Comment
  UC1481862  Cheilanthes gracillima Milo S. Baker 1926-7-13 10 a-26 Humboldt 1/2 mi along Forest Rd from Hwy S Fork Mt Comment
  UC197914  Cheilanthes gracillima Joseph P. Tracy 1908-7-3 2765 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1191327  Chenopodium macrospermum var. halophilum Malcolm A. Nobs and S. Galen Smith 1949-8-11 1340 Humboldt Stone Lagoon; marsh at e shore Comment
  HSC55230  Chimaphila menziesii G. L. Clifton, Griswold 1979-8-2 12431 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA12553  Chimaphila menziesii C. B. Wolf 1934-7-2 5886 Humboldt Snow Camp. Mountains east of Korbel. 1372 Comment
  UC1197601  Chimaphila menziesii Joseph P. Tracy 1947-7-9 17855 Humboldt Horse Mt. 1432 Comment
  CAS-BOT-BC452228  Chimaphila umbellata Volney Rattan no date on label; presented in 1903 s.n. Humboldt Mad River Comment
  HSC102564  Chimaphila umbellata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1551 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC55227  Chimaphila umbellata G. L. Clifton, Griswold 1979-8-2 12427 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC71586  Chimaphila umbellata Gail Newton 1980-6-16 187 Humboldt Near Onion Mtn. 1280 Comment
  SBBG83414  Chimaphila umbellata R. Gankin 1965-8-5 546 Humboldt Kings Mtn Rd, 2.2 mi E of rd end, Pacific Range Wilderness Area Comment
  UCD117385  Chimaphila umbellata Roman Gankin 1965-8-5 546 Humboldt On Kings Mountain Road, 2.2 miles east of road end, Pacific Range Wilderness Area. Comment
  POM351629  Chrysanthemum leucanthemum B. C. Templeton 1964-6-13 10185 Humboldt North of Patrick's Point on Hwy. 101 Comment
  HSC41353  Chrysolepis chrysophylla Brad Klipfel 1974-9-2 546 Humboldt Horse Mountain Comment
  POM270419  Chrysolepis chrysophylla Joseph P. Tracy 1933-8-6 12933 Humboldt French Camp Ridge. 1067 Comment
  RSA170226  Chrysosplenium glechomifolium Joseph P. Tracy 1918-4-28 4888 Humboldt At Eureka 0 Comment
  UC180176  Cicuta douglasii Joseph P. Tracy 1914-9-6 4612 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  UC212881  Cinna latifolia Joseph P. Tracy 1919-9-18 5255 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1524 Comment
  CAS-BOT-BC284409  Cirsium arvense John Thomas Howell 1931-6-17 6724 Humboldt 1 1/2 miles n. of Orick, Redwood Highway Comment
  UCR115124  Cirsium brevistylum B. Villegas 1998-8-4 s.n. Humboldt North Coast Ranges, Hwy 299 between mileposts 21.5 and 18, near Willow Creek. 415 Comment
  RSA125057  Cirsium brevistylum Peter H. Raven, R. Snow 1958-7-20 13648 Humboldt Along Titlow Hill Road 0.7 miles south of U. S. Hwy. 299 Comment
  JEPS59231  Cirsium occidentale var. candidissimum W. L. Jepson 1902-8-5 2148 Humboldt Eltersburg to Briceland Comment
  UC176304  Cirsium occidentale var. candidissimum Joseph P. Tracy 1912-7-26 3854 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC288722  Cirsium remotifolium Joseph P. Tracy 1934-7-6 13659 Humboldt Kneeland Prairie 762 Comment
  CDA1549  Cirsium remotifolium var. odontolepis W. Simas 1972-7-1 s.n. Humboldt Humboldt Redwoods State Park, forested area near Redcrest, about 6 mi. NW of Weott. 0 Comment
  CDA1548  Cirsium remotifolium var. rivulare E. C. Whitney 1968-7-25 s.n. Humboldt Larabee Valley State Hwy 36, 0.5 mi. E of bridge over the South Fork of the Van Duzen River. 0 Comment
  UC179915  Cirsium vulgare Joseph P. Tracy 1914-9-13 4629 Humboldt Eureka 0 Comment
  CAS-BOT-BC160962  Clarkia amoena subsp. amoena L. R. Abrams 1916-7-11 5979 Humboldt [Blocksberg] Blocksburg Comment
  CAS-BOT-BC160970  Clarkia amoena subsp. amoena L. R. Abrams 1916-7-11 6020 Humboldt Mouth of Grizzly Creek on Van [Duzon] Duzen River - Redwood forest Comment
  CAS-BOT-BC160947  Clarkia amoena subsp. amoena Roxana S. Ferris 1937-8-21 9385 A Humboldt Above terrace at Shelter Cove Comment
  CAS-BOT-BC160951  Clarkia amoena subsp. amoena Doris K. Kildale 1928-6-24 5291 Humboldt Horse Mountain cut-off, near junction of Willow Creek road 853 Comment
  UC204004  Clarkia amoena subsp. amoena Joseph P. Tracy 1918-7-3 4989 Humboldt Wilder Ridge Northern Coast Ranges, Kings Peak Range 762 Comment
  JEPS43650  Clarkia amoena subsp. huntiana W. L. Jepson 1902-7-1 1970 Humboldt near Berry's Ranch; Redwood Creek Comment
  CAS-BOT-BC164182  Clarkia concinna Doris K. Kildale 1925-5-24 873 Humboldt Briceland Bridge 1/2 mile west of Garberville 114 Comment
  UC1143187  Clarkia concinna subsp. concinna H. and M. Lewis 1947-6-13 419 Humboldt 1.9 mi w Van Duzen River Bridge (4-129) (Hwy. 36) Comment
  CAS-BOT-BC172077  Clarkia davyi D. E. Breedlove 1962-6-7 3037 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  RSA299017  Clarkia gracilis subsp. sonomensis Lincoln Constance 1934-5-23 618 Humboldt South Fork Eel River: upper end of Look Prairie 366 Comment
  UC902172  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1947-6-28 17723 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  HSC71813  Claytonia exigua subsp. exigua 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
  UC494115  Claytonia exigua subsp. glauca H. E. Parks and J. P. Tracy 1930-5-26 878 Humboldt Laribee Valley Comment
  HSC24076  Claytonia lanceolata J. O. Sawyer 1971-6-15 2385 Humboldt S of Trinity Summit Station 1829 Comment
  HSC70655  Claytonia perfoliata Gail Newton 1980-7-14 1531 Humboldt Near Deadman Ridge 1097 Comment
  CAS-BOT-BC439931  Claytonia perfoliata subsp. mexicana K. L. Chambers 1977-3-28 4240 Humboldt At north end of Humboldt Bay, by the road between Arcata and Samoa. Comment
  UC852101  Claytonia sibirica Elizabeth Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  CAS-BOT-BC443892  Claytonia sibirica Volney Rattan 1878-1-1 s.n. Humboldt North of Mad River Comment
  RSA117688  Claytonia sibirica S. S. Tillett 1956-7-5 603 Humboldt Along State Hwy 96, above Klamath River, 2 miles S of Orleans. 152 Comment
  RSA299448  Claytonia sibirica J. P. Smith 1973-5-26 6850 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC99241  Claytonia washingtoniana C. E. Fellows 1971-6-7 452 Humboldt Clam Beach Bluffs, 9/10 mi. N of jct. of Little River Rd. and Central Ave., E side of Little River Rd. Comment
  SEINET4170316  Clintonia uniflora Unknown 1908-6-27 2733 Humboldt Along Van Duzen River at foot of Buck Mountain, northwest slope 305 Comment
  UC41803  Collinsia grandiflora C. C. Marshall 1888-1 Humboldt unknown Comment
  RSA46692  Collinsia greenei Doris K. Kildale 1938-6-5 15393 Humboldt Horse Mountain Comment
  HSC39196  Collinsia greenei D. E. Anderson, J. P. Smith 1971-7-6 - 1329 Humboldt 1.0 mi. W of Pine Ridge Summit, 6 mi. E of junction with Redwood Valley Rd. Comment
  HSC32342  Collinsia parviflora D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5639 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC48636  Collinsia parviflora Mark Flippo 1978-5-20 89 Humboldt USFS Rd. 8N10 Comment
  JEPS117  Collinsia rattanii Volney Rattan Jun 1884 Humboldt Black Butte; Coast Mtns Comment
  UC55956  Collinsia rattanii J. P. Tracy 1902-6-3 1665 Humboldt Ridge between Eel River and South Fork, near Hubbard's Station Eel River; Ridge between Eel River and South Fork 609 Comment
  UCR45409  Collinsia sparsiflora var. sparsiflora Barry Silver 1986-4-23 519 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  JEPS7054  Collinsia torreyi var. wrightii Joseph P. Tracy 1930-7-17 9014 Humboldt near McKay Camp; South Fork Mtn 1676 Comment
  HSC70922  Collomia heterophylla R. York 1980-5-18 571 Humboldt Near Black Mtn. 390 Comment
  HSC16923  Collomia heterophylla Anonymous 1957-4-27 123 Humboldt 5 mi. E of Honeydew Comment
  POM278763  Collomia heterophylla Lyman Benson 1928-7-12 475 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  HSC102167  Collomia tracyi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1079 Humboldt Patterson Meadows 1555 Comment
  HSC5500  Conyza canadensis Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  UC164847  Conyza canadensis Joseph P. Tracy 1911-7-9 3458 Humboldt near its mouth along Willow Creek; Northern Coast Ranges, Tributary of Trinity River, Willow Cr 182 Comment
  HSC45026  Conyza canadensis R. Sutherland 1976-8-19 7 .19876 Humboldt 259 Comment
  UC165072  Conyza canadensis Joseph P. Tracy 1908-7-1 2908 Humboldt ridge between Van Duzen and Mad Rivers (near Low Gap, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  CAS-BOT-BC181546  Coptis laciniata Lincoln Constance; Reed C. Rollins 1942-5-11 2868 Humboldt Three miles west of East Fork of willow Creek Comment
  HSC74155  Corallorhiza maculata Gail Newton 1980-7-20 1599 Humboldt Near Bell Swamps 1463 Comment
  UC1196450  Corallorhiza maculata Joseph P. Tracy 1930-7-18 9063 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1222188  Corallorhiza mertensiana Joseph P. Tracy 1950-7-2 18959 Humboldt 6 mi ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1222818  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1950-6-17 18839 a Humboldt slough at railroad bridge (salt marsh); Eureka Comment
  UC147873  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1901-8-7 1257 Humboldt Samoa Northern Coast Region of California, region about Humboldt B 0 Comment
  HSC58546  Cordylanthus tenuis subsp. viscidus Overton, Butler 1979-7-24 9568 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  RSA43897  Cordylanthus tenuis subsp. viscidus H. M. Pollard 1947-8-28 s.n. Humboldt Near old placer mine, north of Forest Service Station, Orleans. Comment
  UC936240  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1947-8-24 17884 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  RSA43687  Coreopsis lanceolata H. M. Pollard 1947-8-28 s.n. Humboldt Roadside near Perch Creek, Orleans region Comment
  CAS-BOT-BC101143  Corethrogyne filaginifolia Doris K. Kildale 1927-6-25 3562 Humboldt Shelter Cove Comment
  UC604617  Corethrogyne filaginifolia Joseph P. Tracy 1938-7-15 16059 Humboldt at Bucksport; Eureka 6 Comment
  RSA125370  Corethrogyne filaginifolia var. californica Peter H. Raven, R. Snow 1958-7-21 13658 Humboldt 2 miles north of Cape Mendocino Comment
  CAS-BOT-BC209754  Cornus glabrata Joseph P. Tracy 1919-5-31 5175 & 5210 Humboldt At Lack Pond. Trinity River Valley, near Willow Creek 152 Comment
  POM89159  Cornus glabrata Joseph P. Tracy 1919-5-31 5175 Humboldt At Lack Pond. Trinity River Valley, near Willow Creek. 152 Comment
  UC205460  Cornus glabrata Joseph P. Tracy 1919-9-14 5210 Humboldt at Lack Pond (Trinity R. Valley near Willow Creek); Northern Coast Ranges, Trinity R. Valley 152 Comment
  SEINET12136798  Cornus nuttallii J. P. Tracy 1950-1 19384 Humboldt Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC212176  Cornus sericea Thomas Nelson 1977-6-3 3385 Humboldt Mad River at south end of Mad River Bridge, North Coast Range 53 Comment
  HSC58084  Cornus sericea subsp. occidentalis G. L. Clifton, Griswold 1979-8-1 11989 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC58048  Cornus sericea subsp. sericea G. L. Clifton, Griswold 1979-8-1 11907 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC99428  Cornus sericea subsp. sericea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 77 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC668295  Cornus sericea subsp. sericea Joseph P. Tracy 1935-7-25 14230 1/2 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  JEPS50174  Cornus sessilis Joseph P. Tracy 1922-4-30 6040 Humboldt Three Creeks Northern Coast Ranges, Three Creeks 670 Comment
  RSA0019465  Cornus sessilis Volney Rattan 1878-1 s.n. Humboldt [No location data on label] Comment
  HSC81816  Coronopus didymus Kenneth Clark 1981-5-2 1361 Humboldt Point Delgada, Mario's Marina 15 Comment
  UC902052  Corylus californica Joseph P. Tracy 1949-8-7 18435 Humboldt Trinity Summit, near Box Camp 1463 Comment
  CAS-BOT-BC172849  Corylus cornuta subsp. californica Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick Comment
  CAS-BOT-BC180304  Corylus cornuta subsp. californica P. C. Everett; E. K. Balls 1959-10-24 23956 Humboldt 4.7 mi S from Bluff Creek, Hwy. 96 from Orleans to Weitchpec 121 Comment
  HSC56977  Corylus cornuta subsp. californica Overton, Butler 1979-7-23 9512 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  CHSC32813  Cotula coronopifolia Lora L. Anderson 1981-4-26 20 Humboldt Ca. 500 yds e of ocean (Moonstone Beach) 0.5 mi w of hwy 101, 11.5 mi nw of Arcata. 0 Comment
  UC166068  Cotula coronopifolia J. P. Tracy 1903-8-9 1948 Humboldt immediate vicinity of Eureka 0 Comment
  HSC6502  Crassula connata D. E. Anderson 1963-3-16 2393 Humboldt Scotia Bluffs Comment
  UC1198826  Crassula connata var. erectoides Joseph P. Tracy 1922-4-30 6027 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC291493  Crepis capillaris Alice Eastwood 1921-7-21 10657 Humboldt Carlotta Comment
  UC164829  Crepis capillaris J. P. Tracy 1909-7-4 3005 Humboldt Immediate vicinity of Eureka 0 Comment
  UC581727  Crepis capillaris Joseph P. Tracy 1934-7-4 13300 Humboldt Lawrence Creek; at crossing of the Kneeland road 457 Comment
  UCR122363  Crepis capillaris George K. Helmkamp, E. A. Helmkamp 2001-7-8 6992 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-BC290587  Crepis capillaris L. R. Abrams 1922-6-25 8234 Humboldt 2 mi. south of Fortuna Comment
  RSA246937  Crepis capillaris R. F. Thorne, Percy C. Everett 1965-8-8 35236 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UC1199458  Crepis capillaris Ralph Ferguson 1948-5-4 Humboldt Parkside Tract Eureka 60 Comment
  UC581730  Crepis occidentalis Joseph P. Tracy 1935-7-30 14387 Humboldt Salmon Summit; at top 2112 Comment
  HSC7973  Croton setiger H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 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
  POM182351  Cryptogramma acrostichoides Joseph P. Tracy 1919-9-23 5290 Humboldt Trinity Summit 1829 Comment
  JEPS47099  Cuscuta occidentalis Joseph P. Tracy 1916-9-6 4760 Humboldt Grasshopper Ridge, headwaters of Canoe Creek Northern Coast Ranges, Canoe Creek 609 Comment
  SEINET5785849 Image available Cuscuta salina var. major C. C. Harris, S. K. Harris 1941-8-28 Humboldt Humboldt Bay near Table Bluff Comment
  UC450137  Cuscuta subinclusa P. E. Goddard 1907-7-31 b 129 Humboldt Big Bend Mad River Comment
  UC562478  Cuscuta subinclusa Joseph P. Tracy 1931-6-20 9586 Humboldt Alton, along Van Duzen River North Coast Ranges, Van Duzen River 30 Comment
  UC562479  Cuscuta subinclusa Joseph P. Tracy 1933-8-6 12960 Humboldt e of Orick (Tomlinson Ranch); Bald Hills 762 Comment
  UC562297  Cycladenia humilis var. humilis Joseph P. Tracy 1935-7-29 14349 Humboldt Devil's Backbone - ridge connecting Trinity Summit with Salmon Summit; Devil's Backbone 1676 Comment
  BLMAR215  Cynoglossum grande Jennifer Anthony-Wheeler 1996-7-9 215 Humboldt Pilot ridge., growing in shaged area in woodland, primarily beneath Oregon Oak 1280 Comment
  HSC45646  Cynoglossum grande Diane L. Reed 1978-5-27 135 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  RSA24187  Cynoglossum grande C. B. Wolf 1941-3-2 9987 Humboldt N Coast Range. Bull Creek-Petrolia Road. 12 miles W of Redwood Highway. 457 Comment
  UC54748  Cynoglossum grande J. P. Tracy 1901-4-26 1047 Humboldt vicinity Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  SEINET12280946  Cynoglossum grande J. P. Tracy 1950-1 18647 Humboldt ca 5 mi N of Bridgeville, on the road to the South Yager Valley Comment
  UCD39894  Cynosurus cristatus Ray Evans 1956-7-19 s.n. Humboldt 4.5 miles northwest of Petrolia. Comment
  HSC35349  Cynosurus echinatus J. D. Ackerman, A. M. Montalvo 1975-6-22 482 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  HSC45050  Cynosurus echinatus R. Sutherland 1978-4-24 3 .24478 Humboldt Kinsey Ridge above Oat Creek 396 Comment
  HSC954  Cynosurus echinatus DWC 1956-5-29 Humboldt Petrolia Comment
  HSC97497  Cynosurus echinatus Cara Witte 2007-5-31 153 Humboldt Along National Forest Rte. 1, near Kinsey Ridge, 1.5 miles north of intersection with 4N09 1299 Comment
  SEINET3909435  Cyperus eragrostis J. P. Smith, Advanced Plant Taxonomy Class 1971-10-9 4990 Humboldt The Mad River above the Fish Hatchery.; 0 Comment
  SEINET200970  Cyperus melanostachyus Joseph P. Tracy 1920-8-15 5383 Humboldt Klamath River at Bluff Creek. 152 Comment
  JEPS64063  Cyperus squarrosus Joseph P. Tracy 1916-9-5 4773 Humboldt 4 mi. above mouth S. Fork Eel R.; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  HSC32333  Cystopteris fragilis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5635 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  HSC97625  Cystopteris fragilis Cara Witte 2007-5-31 161 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  UC42487  Cystopteris fragilis C. C. Marshall 1888-1 Humboldt Comment
  HSC14663  Cytisus scoparius var. andreanus T. M. Mingo May 1965 Humboldt 4 mi. N of College Cove Comment
  HSC54606  Dactylis glomerata Overton, Butler 1979-7-24 9690 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC9532  Dactylis glomerata N. R. Waite 1965-5-19 39 Humboldt W edge of Humboldt State University campus. Comment
  HSC97568  Dactylis glomerata Cara Witte 2007-6-7 220 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  RSA126598  Dactylis glomerata H. S. Yates 1936-6-23 5852 Humboldt 2 miles E of mouth of Mad River. 30 Comment
  UC184354  Danthonia californica var. americana Joseph P. Tracy 1912-6-9 3650 Humboldt Alton Northern Coast Region 30 Comment
  BLMAR238  Datisca glomerata Jennifer Anthony-Wheeler 1997-6-13 238 Humboldt King range, growing in wet seep along old queen mine rd 512 Comment
  UC1197347  Daucus pusillus Joseph P. Tracy 1911-7-5 3305 Humboldt along Willow Creek (a tributary of Trinity R.) near its mouth Willow Creek; Northern Coast Ranges, Willow Creek 182 Comment
  UCD127415  Daucus pusillus P. B. Kennedy 1928-7-15 s.n. Humboldt Sea Cliffe, near Trinidad. Comment
  RSA68806  Delphinium decorum subsp. tracyi Joseph P. Tracy 1932-7-12 10486 Humboldt Head of Brett Hole 1829 Comment
  HSC27069  Delphinium decorum subsp. tracyi D. E. Anderson 1965-4-24 3533 Humboldt Along Titlow Hill Rd. Comment
  UC9180  Delphinium hesperium subsp. pallescens Harley P. Chandler June 1901 1410 Humboldt Klamath River North Coast Ranges 304 Comment
  HSC100615  Delphinium nudicaule Carl C. Marshall May 1887 412 Humboldt Lawrence Creek. Comment
  HSC89622  Delphinium nudicaule Pat Daly, Rudy Galindo 1988-3-12 5 Humboldt S Fork Trail of Trinity River, trailhead 12.4 mi. up S Fork Rd. from Hwy. 299 457 Comment
  CAS-BOT-BC121959  Delphinium trolliifolium Doris K. Kildale 1927-3-26 3089 Humboldt Alton Hill 45 Comment
  HSC34917  Delphinium trolliifolium Thomas W. Nelson, James Nelson 1975-5-24 1862 Humboldt McKeown Ranch, N of Dinsmore. Comment
  RSA20971  Delphinium trolliifolium Carl B. Wolf 1937-6-14 8827 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  SACT000911  Deschampsia cespitosa Malcolm Nobs, S. Smith 1949-8-3 Humboldt Borders of irrigation ditch, 1 mile south of Fields Landing, Eel River Valley. Comment
  HSC27023  Deschampsia cespitosa subsp. holciformis Brad W. Klipfel 1973-8-17 274 Humboldt Big Lagoon Park, at the Sphagnum bog. Comment
  CAS-BOT-BC192704  Deschampsia danthonioides Doris K. Kildale 1928-7-1 5309 a Humboldt French Camp - Bald Hills, Orick - Martins Ferry Road Comment
  HSC75452  Deschampsia danthonioides J. O. Sawyer 1980-7-18 3589 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC9609  Deschampsia danthonioides H. E. Parks May 1934 5022 Humboldt Big Lagoon Comment
  CAS-BOT-BC201771  Deschampsia elongata H. N. Bolander 1862-1-1 s.n. Humboldt Unspecified Comment
  CDA31675  Deschampsia elongata T. C. Fuller 1962-8-6 9363 Humboldt Near Hwy 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Rd., 1 miles west of Green Point School. 0 Comment
  UC526670  Deschampsia elongata Joseph P. Tracy 1933-7-25 12872 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  UC1225761  Descurainia incisa subsp. incisa Joseph P. Tracy 1947-8-24 17921 Humboldt near Box Camp (along trail to Water Dog Lakes); Trinity Summit 1676 Comment
  JEPS9737  Dicentra formosa Joseph P. Tracy 1933-5-28 12414 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  CDA24607  Dicentra formosa C. Sinkiewicz 2002-4-17 Humboldt McKinnleyville, Dows Prairie. Comment
  CAS-BOT-BC402409  Dicentra formosa subsp. formosa Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC254483  Dichanthelium acuminatum subsp. acuminatum Henry M. Pollard 1948-9-18 s.n. Humboldt Banks of Klamath River, Orleans Comment
  CAS-BOT-BC483662  Dichelostemma capitatum Alice Eastwood; John Thomas Howell 1937-6-23 4787 Humboldt Near Dinsmore's Comment
  SEINET12053835  Dichelostemma capitatum J. P. Tracey 1951-1 19404 Humboldt toward Ashfield Butte, Kneeland Prairie Comment
  SEINET12053836  Dichelostemma capitatum L. K. Henry 1971-1 Humboldt along Rt. 36, 2 mi E of Dinsmore, in Six Rivers National Forest Comment
  UC1198171  Dichelostemma capitatum Joseph P. Tracy 1947-5-10 17685 Humboldt Miranda, along the South Fork of Eel River South Fork of Eel River 121 Comment
  UC15032  Dichelostemma capitatum J. Burtt Davy 1899-6-11 5430 Humboldt Hubbard's Station to Elk Prairie Comment
  HSC95583  Dichelostemma capitatum subsp. capitatum Andrea Pickart 2002-5-13 99 Humboldt Lamphere Dunes, Humboldt National Wildlife Refuge Comment
  SEINET200693  Dichelostemma congestum Joseph P. Tracy 1927-5-8 7965 Humboldt Phillipsville South Fork of Eel River. 122 Comment
  CAS-BOT-BC502556  Dichelostemma congestum P. E. Goddard 1907-5-29 b. 109 Humboldt Van Duzen Comment
  JEPS508  Dichelostemma ida-maia Joseph P. Tracy 1937-7-19 15450 Humboldt nw slope Buck Mountain 914 Comment
  UC198610  Digitalis purpurea Joseph P. Tracy 1917-5-30 4790 Humboldt Dows Prairie Comment
  UC1103231  Digitaria sanguinalis Joseph P. Tracy 1934-8-14 13579 Humboldt 1 mi above mouth South Fork of Eel River; North Coast Ranges, South Fork of Eel River 60 Comment
  CHSC94932  Diplacus aurantiacus K. Lang; J. Lang 2005-3-16 49 Humboldt Trinidad, N. California coast. 51 Comment
  CAS-BOT-BC153234  Diplacus kelloggii John Cromwell; Julie Schneider; Audie Thoele 1994-3-19 5 Humboldt Hell's Half Acre, trailhead located about 12 miles South of South Fork Road off of Hwy. 299 457 Comment
  JEPS8812  Dipsacus fullonum Joseph P. Tracy 1937-8-3 15610 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  UC146218  Disporum smithii Joseph P. Tracy 1908-6-9 2662 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  JEPS55589  Disporum smithii W. Roderick 1961-6-28 Humboldt 5.4 road mi ne of Weitchpec (Klamath River); Klamath River Comment
  SACT001019  Distichlis spicata var. stolonifera Malcolm Nobs, S. Smith 1949-8-3 Humboldt Salt Marshes. Comment
  UCD64617  Distichlis spicata var. stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-3 1178 Humboldt Around Fields Landing. Comment
  SEINET201059 Image available Dodecatheon hendersonii Joseph P. Tracy 1927-5-15 8061 Humboldt Hoopa Mountain; near summit on road west from Hoopa to Bair's. 1067 Comment
  HSC17909  Dodecatheon hendersonii D. E. Anderson 1965-4-24 3545 Humboldt Ca. 2 mi. E of Berry Summit along Hwy. 299 Comment
  UC562464  Dodecatheon hendersonii Joseph P. Tracy 1927-4-2 7879 Humboldt facing South Fork of Eel River Northern Coast Ranges, fcg South Fork Eel River (Phillipsville) 121 Comment
  RSA79374  Draba verna E. K. Balls, Lee W. Lenz 1952-5-12 17200 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  JEPS1611  Draperia systyla Joseph P. Tracy 1935-7-31 14389 Humboldt Devil's Backbone; ridge connecting Trinity Summit with Salmon Summit 1524 Comment
  HSC23462  Drosera rotundifolia Norman Dennis 1965-6-3 140 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  HSC18756  Drymocallis glandulosa Lincoln Constance 1934-6-15 878 Humboldt Summit of Grasshopper Peak, S Fork Eel River, Bull Creek region 976 Comment
  CAS-BOT-BC159614  Drymocallis glandulosa var. glandulosa Doris K. Kildale 1926-5-9 1993 Humboldt Kneeland Prairie 762 Comment
  HSC102523  Drymocallis lactea var. austiniae M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1510 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC58143  Drymocallis lactea var. lactea Gilbert Muth 1979-8-1 12169 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC1033  Dryopteris arguta W. R. Supernaugh, Jr. 1964-12-15 16 Humboldt 400 yards S of Trinidad Harbor, off old logging rd. above beach 12 Comment
  POM118351  Dryopteris expansa Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
Read comments
Dec 31 2015
  UC197923  Dryopteris expansa Joseph P. Tracy 1914-6-7 4491 Humboldt N Fork Eel River Alton; Northern Coast Region 30 Comment
  CAS-BOT-BC428295  Dudleya farinosa A. A. Heller 1934-7-10 16164 Humboldt At Moonstone Beach near Trinidad. Comment
  HSC97541  Dysphania ambrosioides Ivy Watson 2008-9-17 15 Humboldt Mad River Park on W End Rd., near pumping station 8 Comment
  JEPS19336  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie; dried pond bed 60 Comment
  HSC7320  Eleocharis macrostachya C. B. Wolf 1927-8-22 793 Humboldt Big Lagoon Comment
  HSC90658  Eleocharis macrostachya Gail Newton 1982-6-10 3640 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC112838  Eleocharis macrostachya David Daniels Keck 1938-8-5 4768 Humboldt Big Lagoon, on shore in drying clay mud. Comment
  HSC7323  Eleocharis pachycarpa H. E. Parks, J. P. Tracy 1934-10-13 11148 Humboldt Trinidad at Park's place 61 Comment
  HSC58629  Elymus elymoides var. elymoides Overton, Butler 1979-7-31 11482 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  CAS-BOT-BC203474  Elymus glaucus subsp. glaucus Harold E. Parks; Joseph P. Tracy 1934-6-14 11026 Humboldt Horse Mt. 1371 Comment
  HSC9745  Elymus glaucus subsp. glaucus D. E. Anderson 1962-7-10 2249 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  HSC9738  Elymus mollis subsp. mollis T. O. Preston 1963-5-6 21 Humboldt Sand dunes. Comment
  BLMAR20  Elymus multisetus Brad Barr June, 1982 20 Humboldt King range, West facing slope of spanish ridge Comment
  UC1196733  Elymus multisetus Joseph P. Tracy 1919-5-31 5160 Humboldt Willow Creek Northern Coast Ranges (gravel bar, near its mouth (creek is a tributary of Trinity River)) 152 Comment
  HSC49812  Empetrum nigrum R. York 1979-4-13 220 Humboldt Elks Head, 1 mi. N of Trinidad Comment
  HSC16340  Epilobium brachycarpum D. E. Anderson 1961-9-23 1833 Humboldt 2.3 mi. S of Kneeland corner Comment
  HSC56983  Epilobium brachycarpum Overton, Marvin Butler 1979-7-23 9524 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  RSA167259  Epilobium brachycarpum Joseph P. Tracy 1950-9-10 19356 Humboldt Bear River Ridge 610 Comment
  UC505111  Epilobium brachycarpum Joseph P. Tracy 1932-5-22 10112 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC562418  Epilobium brachycarpum Joseph P. Tracy 1933-8-30 13034 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UCR179429  Epilobium brevistylum J. M. Tucker 1948-9-3 1858 Humboldt North Coast Range, Six Rivers National Forest, Clear Lake, near junction of Friday Ridge Road and Horse Mountain/Grouse Mountain Road 1494 Comment
  POM225267  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-9 14330 Humboldt South fork of Eel River, 5 miles north of Humboldt-Mendocino County line, on Redwood Highway Comment
  HSC69629  Epilobium ciliatum subsp. ciliatum R. Kalal 1980-5-18 30 Humboldt Along abandoned Rd. near entrance to Dry Lagoon State Park 21 Comment
  JEPS38191  Epilobium densiflorum W. L. Jepson 1927-7-3 12364 Humboldt Miranda Station South Fork Eel River 228 Comment
  JEPS31500  Epilobium foliosum Joseph P. Tracy 1939-5-30 16302 Humboldt Dinsmore's Ranch Northern Coast Ranges, Van Duzen River (opposite Buck Mountain) 670 Comment
  RSA167260  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1950-8-7 19272 Humboldt On trail between Box Camp and Croghan [Groghan] Hole, 2 miles east of Box Camp. Trinity Summit Comment
  HSC55015  Epilobium hallianum Overton, Butler 1979-7-31 11407 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC45464  Epilobium hallianum Thomas W. Nelson, Jane P. Nelson 1978-7-2 4390 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  RSA256576  Epilobium minutum D. E. Anderson 1972-6-20 5747 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  HSC71824  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1980-6-27 5938 Humboldt Along old trail to pond above Alder Spring, 0.5 mi. N of campground 1555 Comment
  JEPS31474  Epilobium minutum Joseph P. Tracy 1926-6-20 7617 Humboldt Horse Mountain Northern Coast Ranges (along streamlets) 1524 Comment
  JEPS39325 Image available Epilobium oreganum Chesnut and Drew 1888-8-1 Humboldt near Grouse Creek Comment
Read comments
Jun 21 2008
  UC503074  Equisetum hyemale subsp. affine Joseph P. Tracy 1927-8-7 8316 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  CHSC60063  Equisetum telmateia Eric Hartwell 1983-3-30 9 Humboldt Ca. 0.25 miles east of jct. Of Jacoby Creek Rd. and Sonnerfelt Rd., NW1/4 of Sect.11. 97 Comment
  HSC91901  Equisetum telmateia subsp. braunii E. Mackey 1987-2-18 Humboldt Patrick's Point State Park, on trail to Wedding Rock Comment
  SEINET200658 Image available Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Damp sand bar along river Trinity River Valley at Willow Creek 152 Comment
  SEINET11836158  Erechtites argutus H. E. Parks, Parks, S. T. 1937-1 24033 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC34983  Erechtites glomeratus Thomas W. Nelson 1974-9-13 1710 Humboldt King Salmon area Comment
  CAS-BOT-BC299913  Erechtites minimus Carl B. Wolf 1927-8-22 769 Humboldt Big Lagoon Comment
  HSC102576  Eremogone congesta var. subcongesta M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1563 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CHSC84686  Erigeron aliceae L. P. Janeway 2003-7-26 7924 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  SEINET200722  Erigeron foliosus Joseph P. Tracy 1913-6-10 4082 Humboldt Along Van Dugen River near Grizzly Gulch. Comment
  JEPS11982  Erigeron foliosus var. confinis Rimo Bacigalupi with G. T. Robbins 1954-6-28 4653 Humboldt 4.6 mi s Weitchpec, Hoopa Valley Indian Reservation (between Hoopa Valley and Weitchpec, along highway, high above Trinity River); Trinity River 167 Comment
  SEINET11859406  Erigeron foliosus var. confinis J. P. Tracy 1947-7-5 17785 Humboldt Trinity Summit, ridge top 1 mi W of Mud Springs Comment
  CAS-BOT-BC300676  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road, near the summit of ridge 762 Comment
  RSA39093  Erigeron foliosus var. mendocinus P. A. Munz 1948-8-15 12358 Humboldt Van Duzen Redwood State Park. Comment
  CHSC69497  Erigeron glaucus Vernon Oswald; Lowell Ahart 1997-9-4 8851 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.1 mi south of Hwy. 255. 6 Comment
  HSC5524  Erigeron glaucus J. W. Johnson 1961-8-17 1036 Humboldt Dune fields of W.M. Lanphere Farm, Samoa Peninsula Comment
  HSC98674  Erigeron inornatus var. inornatus Cara Witte 2008-7-10 850 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile from National Forest 1. Under powerlines. 1237 Comment
  HSC99348  Erigeron inornatus var. inornatus Thomas W. Nelson, B. Reinhardt 1975-7-30 2110 Humboldt Whiting Spring Comment
  HSC102074  Erigeron klamathensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 976 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC66281  Erigeron maniopotamicus M. A. Baker 1980-6-28 2499 Humboldt Near Mad River Buttes 1445 Comment
  JEPS109871  Erigeron maniopotamicus Dean W. Taylor 2007-7-11 20158 Humboldt 1.1 air miles NW of Board Camp Mountain, headwaters Boulder Creek, along Forest Road 4N38 1371 Comment
  CAS-BOT-BC214585  Erigeron philadelphicus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC67011  Erigeron philadelphicus J. P. Smith 1971-10-9 5025 Humboldt Mad River above the Fish Hatchery. Comment
  RSA259565  Erigeron philadelphicus D. E. Anderson, J. P. Smith 1971-6-28 J- 1221 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  UCD20386  Erigeron philadelphicus K. Esau 1934-5-6 s.n. Humboldt Fort Seward. Comment
  UCD132041  Erigeron philadelphicus var. philadelphicus P. B. Kennedy 1929-6-12 s.n. Humboldt Eureka. Comment
  HSC100720  Eriodictyon glutinosum Carl C. Marshall Jun 1886 303 Humboldt Pine Creek and E of Hoopa. Comment
  HSC97398  Eriogonum compositum var. compositum Benjamin Hart, Erin Lonergan 2007-6-11 4 Humboldt 14.1 mi. S of Hwy. 299 on NF1 1524 Comment
  CAS-BOT-BC259180  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River Comment
  HSC26656  Eriogonum latifolium J. P. Smith 1971-10-6 4938 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC49090  Eriogonum latifolium Patricia Shesgreen 1978-8-12 136 Humboldt Along Hwy. 255, 0.25 mi. S of Samoa Bridge Comment
  CAS-BOT-BC259160  Eriogonum latifolium H. N. Bolander 1866-1-1 6569 Humboldt Collected on State Survey. Shelter Cove Comment
  RSA393623  Eriogonum latifolium Charlotte M. Hoak 1931-7-14 s.n. Humboldt Above Eureka. Comment
  JEPS57407  Eriogonum luteolum L. R. Heckard with T. I. Chuang 1968-7-5 1987 Humboldt 4.3 mi n, on Mail Ridge road Harris road Comment
  HSC60052  Eriogonum nudum var. nudum M. A. Baker 1978-5-6 487 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC49980  Eriogonum nudum var. nudum M. A. Baker 1979-6-7 780 Humboldt N bank of road to Snow Mtn. 610 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
  CAS-BOT-BC261723  Eriogonum nudum var. oblongifolium Doris K. Kildale 1928-6-24 5272 Humboldt Entrance to Horse Mountain 853 Comment
  HSC54720  Eriogonum umbellatum Overton, Butler 1979-7-26 10095 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  HSC75959  Eriogonum umbellatum Overton, Butler 1979-7-24 9739 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC302989  Eriogonum umbellatum var. goodmanii Joseph P. Tracy 1926-6-20 7640 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC98668  Eriogonum umbellatum var. nelsoniorum Cara Witte 2008-7-14 888 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. 1431 Comment
  UC672898  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1935-7-28 14328 Humboldt Head of Devil's Hole Trinity Summit, Devil's Hole 1828 Comment
  HSC36636  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1906 Humboldt End of road to Pine Mtn. Comment
  HSC5590  Eriophyllum lanatum Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  HSC44132  Eriophyllum lanatum var. achilleoides Thomas W. Nelson, Jane P. Nelson 1977-7-4 3586 Humboldt Along W side of road N of Alder Springs, head of N Fork of Conley Creek 1280 Comment
  JEPS34590  Eriophyllum lanatum var. achilleoides W. L. Jepson 1921-8-11 9417 Humboldt Big Lagoon Comment
  UC1223130  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1950-6-15 18790 Humboldt 7 mi n Harris; Jenk's Ranch Comment
  UC507068  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-5-21 E 34 Humboldt 1 mi n Garberville; South Fork of Eel River Comment
  UC129578  Eriophyllum lanatum var. arachnoideum Joseph Burtt Davy and Walter C. Blasdale Jun 16 1899-Jan 1 1900 5563 Humboldt Alton North-Western California, Alton Comment
  JEPS34624  Eriophyllum lanatum var. grandiflorum W. L. Jepson 1934-5-8 16722 Humboldt Benbow South Fork Eel River, Benbow Comment
  RSA21076  Eriophyllum lanatum var. integrifolium C. B. Wolf 1937-8-13 9236 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC302012  Eriophyllum staechadifolium Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick Comment
  UC727166  Eriophyllum staechadifolium A. A. Heller 1924-7-23 13878 Humboldt between Little River and Trinidad Comment
Read comments
Sep 29 2006
  HSC100485  Erodium moschatum Carl C. Marshall May 1886 197 Humboldt Yard's etc. Comment
  CAS-BOT-BC41569  Erysimum capitatum Doris K. Kildale 1926-4-18 1769 Humboldt McLellan Mountain. 822 Comment
  CAS-BOT-BC54909  Erysimum menziesii G. B. Rossbach 1955-6-10 596 Humboldt Depression in coastal dunes near Humboldt Bay lighthouse between Fairhaven and end of Sandy point off Eureka. Comment
  HSC6785  Erysimum menziesii S. J. Hawks 1965-3-19 8 Humboldt W of Eureka airport. Comment
  RSA102134  Erysimum menziesii G. B. Rossbach 1955-6-10 596 Humboldt Near Humboldt Bay Lighthouse between Fairhaven and end of sandy point off Eureka Comment
  SJSU2542  Erythranthe dentata H. L. Buckalew 1962-6-26 Humboldt Prairie Cr Redwoods State Park Comment
  HSC74620  Erythronium californicum M. A. Baker 1980-5-17 1248 Humboldt Near Le Perron Peak 1066 Comment
  UC3606  Erythronium californicum C. C. Marshall April, 1888 Humboldt Hoopa Valley Comment
  HSC104422  Erythronium grandiflorum Sydney Carothers 2004-5-31 42 Humboldt Grouse Mountain; back side of Grouse Mtn., slope above Forest Service Rd. 5NO4, below summit 1610 Comment
  HSC48836  Erythronium grandiflorum subsp. grandiflorum Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 29 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC175815  Erythronium revolutum Joseph P. Tracy 1913-5-4 4059 Humboldt Ashfield's Butte Northen Coast Ranges 762 Comment
  UC183669  Eschscholzia californica Joseph P. Tracy 1912-7-26 3853 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC59686  Eschscholzia californica George Kirn 1977-8-20 Humboldt Eureka, 6th and Myrtle Ave. Comment
  UC503023  Eschscholzia californica Joseph P. Tracy 1932-6-14 10140 Humboldt hillsides w mouth of S. Fork Trinity River; Northern Coast Ranges, Trinity River Valley 609 Comment
  JEPS20476  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC97574  Euphorbia crenulata Cara Witte 2007-5-23 102 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  HSC100482  Euphorbia lathyris Carl C. Marshall Jun 1885 114 Humboldt Near Arcata fields, etc. Comment
  CAS-BOT-BC312210  Eurybia radulina Doris K. Kildale 1926-8-22 2588 Humboldt On Orick - Martin's Ferry Road 716 Comment
  UC581784  Eurybia radulina Joseph P. Tracy 1929-10-6 8677 Humboldt Kneeland Prairie, on Butler Valley Road Kneeland Prairie 609 Comment
  CAS-BOT-BC310683  Euthamia occidentalis S. K. Harris; Charlotte Wilder 1938-9-7 s.n. Humboldt Bars of the Van Dusen River, above Blue Slide Comment
  POM248197  Euthamia occidentalis S. K. Harris, Charlotte Wilder 1938-9-7 879 Humboldt Bars of the Van Duzen River, above Blue Slide Comment
  HSC73240  Festuca californica M. A. Baker 1980-5-18 1321 Humboldt Near Black Mtn. 1006 Comment
  UC70921  Festuca californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 Humboldt Hoopa Mt. Comment
  BLMAR23  Festuca myuros Brad Barr June, 1982 23 Humboldt King range, Smith cabin Comment
  RSA10112  Festuca occidentalis Joseph P. Tracy 1932-7-17 10655 Humboldt Near Corral Prairie, Trinity summit, Klamath mountains. 1524 Comment
  UC38490  Festuca occidentalis Harley P. Chandler Jun 1901 1382 Humboldt Hupa Indian Reservation North Coast Ranges 304 Comment
  UCSC000035  Festuca occidentalis H. S. Yates 1936-6-17 5700 Humboldt lower northwest slope of Buck Mountain 792 Comment
  CAS-BOT-BC278967  Festuca rubra H. S. Yates 1936-6-17 5697 Humboldt Lower northwest slope of Buck Mountain 792 Comment
  RSA10070  Festuca rubra Joseph P. Tracy 1927-6-26 8217 Humboldt Stone Lagoon. Comment
  UC1145214  Festuca rubra Joseph P. Tracy 1950-6-17 18837 Humboldt Eureka 3 Comment
  HSC98623  Festuca subulata Cara Witte 2008-8-6 1006 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  SEINET10559491  Festuca subulata Joseph P. Tracy 1935-7-27 Tracy 14295 Humboldt Moist stream bank. Trinity summit. Open places at McKay Prairie. 1585 Comment
  HSC95822  Fragaria chiloensis Steven Lee 2004-3-23 5 Humboldt Manila Dunes, Vera Ln. Dune Community Comment
  HSC18611  Fragaria vesca J. C. Reppas 1963-4-11 37 Humboldt 820 Fickle Hill Rd. Comment
  CAS-BOT-BC457923  Fragaria vesca subsp. californica Doris K. Kildale 1926-3-23 1613 Humboldt Alton Hill Comment
  CAS-BOT-BC53404  Frangula californica subsp. occidentalis Carl B. Wolf 1927-8-28 1172 Humboldt On grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  CAS-BOT-BC59997  Frangula purshiana C. B. Wolf 1937-8-13 9260 Humboldt N. coast range, 11 mi. e. of Hoopa Valley on New Road towards Trinity summit. 1524 Comment
  BLMAR403  Frangula purshiana 2005-7-22 403 Humboldt King range, HJ Ridge grazing allotment, ecotone betw dougfir and grassland 548 Comment
  SEINET5012890  Fraxinus latifolia Unknown 1995-4-26 1387 Humboldt Six Rivers Ntl Forest. Hwy 36, 2km W of town. Comment
  CAS-BOT-BC136030  Fritillaria affinis Doris K. Kildale 1925-4-1 s.n. Humboldt Hungry Hollow near Korbell Comment
  RSA79369  Fritillaria affinis E. K. Balls, Lee W. Lenz 1952-5-12 17194 Humboldt 3.9 miles east of Bridgeville along Highway 36 Comment
  RSA90637  Fritillaria affinis Ralph Lewis 1936-4-10 s.n. Humboldt Along Redwood Highway, first bridge south of Cummings Comment
  SEINET12050370  Fritillaria affinis F. H. Utech 1988-1 88 -285 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, Mile Marker 42.00, bluff above Van Duzen River 800 Comment
  SEINET200745  Fritillaria lanceolata Joseph P. Tracy 1940-5-17 16549 Humboldt McClellan Mountain. 762 Comment
  CDA3559  Fumaria capreolata Gordon Leppig, Sylvia Leppig 2000-12-7 1523 Humboldt 7th and I Street just west of Post Office, Arcata. Comment
  HSC82114  Galium aparine Thomas W. Nelson, Jane P. Nelson 1980-5-25 5254 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  UCD121621  Galium aparine Linda M. Barker 1976-6-14 1601 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC31221  Galium muricatum D. E. Anderson 1972-6-20 5727 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  JEPS52824  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3851 Humboldt 11.6 mi w Bridgeville (on Hwy 36 to Dinsmores, floor of valley); Larrabee Valley 716 Comment
  RSA67142  Galium muricatum F. W. Peirson 1932-7-7 10263 Humboldt Willow Creek. A few miles above town of that name. Comment
  JEPS6616 Image available Galium nuttallii Joseph P. Tracy 1924-8-10 6816 Humboldt Blue Slide Van Duzen River; Blue Slide, on Van Duzen River, Humboldt Co. 91 Comment
  JEPS6494  Galium parisiense Joseph P. Tracy 1937-7-11 15421 Humboldt Garberville 152 Comment
  UC1196100  Galium parisiense Joseph P. Tracy 1934-7-9 13353 Humboldt Dobbyn Creek 152 Comment
  UC176053  Galium parisiense Joseph P. Tracy 1913-7-20 4379 Humboldt Redwood Creek crossing at Berry's; Northern Coast Ranges 304 Comment
  UC602546  Galium parisiense Joseph P. Tracy 1937-7-11 15421 Humboldt Garberville 152 Comment
  POM266166  Galium porrigens Ynez Whilton Winblad 1941-6-25 s.n. Humboldt Between Garberville and Pepperwood. Comment
  RSA46487  Galium porrigens Doris K. Kildale 1926-3-26 1645 Humboldt Old Fortuna Rd Comment
  HSC70361  Galium porrigens var. porrigens Gail Newton 1980-6-7 142 Humboldt Near Brush Mtn. 1128 Comment
  JEPS52748  Galium porrigens var. porrigens Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3863 Humboldt 4.2 mi n Redway (along US 101, w-facing slope above Eel River) 91 Comment
  HSC34703  Galium triflorum Thomas W. Nelson 1974-7-20 1701 Humboldt McKeown Ranch N of Dinsmore Comment
  OBI33244  Galium triflorum David J. Keil 1983-7-1 17258 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  HSC67509  Garrya buxifolia J. P. Smith, J. O. Sawyer 1973-5-12 6703 Humboldt 10.4 mi. from Redwood Creek on Hoopa Rd. Comment
  UC906753  Garrya buxifolia Joseph P. Tracy 1947-7-9 17841 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC188531  Garrya elliptica Doris K. Kildale 1925-5-25 6043 Humboldt Eureka Slough, Eureka Comment
  UC1550379  Garrya elliptica Gerald V. Dahling Jun 1973 1229 Humboldt about 10 mi n Trinidad (along Highway 101) Comment
  CAS-BOT-BC182169  Garrya fremontii Henry M. Pollard 1946-9-1 s.n. Humboldt Near Willow Creek, Orleans region Comment
  JEPS66730  Garrya fremontii Lincoln Constance 1934-6-19 907 Humboldt near summit Grasshopper Peak; South Fork Eel River, Bull Creek Region 914 Comment
  OBI14161  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 a Humboldt Trinity River Valley, at Willow crk Comment
  RSA134149  Garrya fremontii Percy C. Everett, E. K. Balls 1959-10-24 23952 Humboldt 2.8 mi SW from Siskiyou-Humboldt Co. line, Somesbar to Orleans. 198 Comment
  HSC22527  Gaultheria shallon Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  HSC93253  Gaultheria shallon Gordon Leppig 1998-3-25 726 Humboldt Big Lagoon County Park, bank just E of bog 8 Comment
  POM118415  Gaultheria shallon Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UCR275108  Gaultheria shallon Charity A. Hartshorn 2016-5-14 34 Humboldt Arcata Community Forest 244 Comment
  HSC54756  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-26 10293 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC55075  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-31 11684 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  POM247154  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-7-26 12919 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  UC144065  Gayophytum humile Joseph P. Tracy 1908-6 2688 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC76214  Gayophytum racemosum Overton, Butler 1979-7-24 9729 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC14654  Genista monspessulana William J. Ferlatte 1963-4-21 18 Humboldt Near 11th and A St., Arcata Comment
Read comments
Dec 18 2011
  JEPS64791  Genista monspessulana W. L. Jepson 1936-8-11 17869 Humboldt Philipsville South Fork Eel River Comment
  HSC102240  Gentiana plurisetosa Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  JEPS24355  Gentiana plurisetosa Mary H. Manning 1900-1 Humboldt Trinity Summit Comment
  RSA46825  Gentiana plurisetosa Doris K. Kildale 1925-8-17 s.n. Humboldt Trinity Summit 1829 Comment
  UC213321  Gentiana plurisetosa Joseph P. Tracy 1919-9-22 5274 Humboldt Trinity Summit Northern Coast Ranges (in meadows) 1828 Comment
  POM210202  Gentiana sceptrum H. E. Parks 1931-07 1052 Humboldt Bishop Pine Lodge, Trinidad. 76 Comment
  HSC95593  Geranium dissectum Andrea Pickart 2002-5-24 110 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  RSA0028457  Geranium dissectum H. E. Parks, S. T. Parks 1938-04 24118 Humboldt Spruce Cove, Trinidad. 61 Comment
  HSC55323  Geum macrophyllum Griswold, Butler 1979-7-12 7140 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC16968  Gilia capitata H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  RSA84895  Gilia capitata H. M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  RSA275284  Gilia capitata J. P. Smith 1973-5-26 6816 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC97970  Gilia capitata subsp. capitata Cara Witte, Michael Scott 2007-6-22 346 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  UC52441  Gilia capitata subsp. capitata Harley P. Chandler June, 1901 1521 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  BLMAR433  Gilia capitata subsp. pacifica Jennifer Anthony-Wheeler 2008-6-13 433 Humboldt King range, growing in Prosper Prairie near hdwaters of Mill Creek 624 Comment
  CAS-BOT-BC226147  Gilia capitata subsp. pacifica Doris K. Kildale 1925-6-28 1372 Humboldt Kneeland Prairie - bald hills 762 Comment
  CAS-BOT-BC226151  Gilia capitata subsp. pacifica Doris K. Kildale 1927-5-15 3295 Humboldt Mattole River Valley Comment
  RSA21031  Gilia capitata subsp. pacifica C. B. Wolf 1937-8-11 8901 Humboldt Fleener Creek, 0.5 mile south of Centerville. 46 Comment
  RSA63402  Gilia capitata subsp. pacifica C. B. Wolf 1939-7-8 9519 Humboldt Devil's Gate, south of Cape Mendocino. 8 Comment
  UC176953  Gilia capitata subsp. pacifica Joseph P. Tracy 1912-6-9 3672 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC1197907  Gilia millefoliata Joseph P. Tracy 1931-6-15 9583 Humboldt sandy ground along bay shore at Bucksport (around Humboldt Bay); Northern Coast Region, around Humboldt Bay 6 Comment
  CAS-BOT-BC123798  Gilia millefoliata var. maritima Harley Pierce Chandler 1901-5-1 1135 Humboldt North Coast Ranges, Humboldt Bay 3 Comment
  BLMAR647  Githopsis specularioides Jennifer Wheeler 2011-6-21 647 Humboldt Lacks Creek, Stormy Saddle Prairie 1158 Comment
  SEINET6996156  Githopsis specularioides Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  HSC17915  Glaux maritima Norman H. Moe 1962-5-17 Humboldt Lanphere's Place Comment
  UC1199277  Glebionis segetum Joseph P. Tracy 1933-8-22 12977 Humboldt at Eureka 6 Comment
  RSA246750  Glehnia littoralis subsp. leiocarpa R. F. Thorne, P. Everett 1965-8-7 35218 Humboldt Samoa Peninsula. 3 Comment
  CAS-BOT-BC280551  Glyceria elata Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek near Orleans Comment
  HSC92863  Glyceria fluitans Gordon Leppig 1995-4-6 243 Humboldt Arcata, Alder Grove Pond. 12 Comment
  CAS-BOT-BC302538  Gnaphalium palustre H. E. Parks; S. T. Parks 1937-7-1 24026 Humboldt Spruce Cove, Trinidad Comment
  UC630459  Gnaphalium palustre H. E. and S. T. Parks 1937-7 24026 Humboldt Spruce Cove Northwestern California, Trinidad, Spruce Cove Comment
  RSA18609  Grindelia hirsutula Lyman Benson 1937-9-9 9305 Humboldt Coast, 2 miles S of Cape Mendocino. 6 Comment
  UC1173679  Grindelia hirsutula Joseph P. Tracy 1939-8-6 16397 Humboldt Big Lagoon 3 Comment
  CDA6054  Grindelia nana E. C. Whitney 1963-9-2 Humboldt Benbow State Park, Eel River, south of Garberville. 0 Comment
  UCR48860  Grindelia stricta R. D. Goeden 1987-9-2 870902- 21 Humboldt Cape Mendocino (Cape Ridge) on bank above Mattole Rd. 183 Comment
  RSA259557  Grindelia stricta var. stricta Gary S. Lester 1974-8-24 528 Humboldt Arcata salt marsh on Humboldt Bay at the 'G' St. oxidation plant. 1 Comment
  RSA93069  Grindelia stricta var. stricta J. T. Howell 1937-7-31 13720 Humboldt Salt marsh bordering Humboldt Bay at Arcata. Comment
  UC475986  Hackelia bella Joseph P. Tracy July 1930 9023 Humboldt South Fork Mountain Comment
  UC525565  Hackelia bella Joseph P. Tracy Jul 16 1930-Jul 19 1930 9023 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  JEPS67937  Hackelia setosa Joseph P. Tracy 1937-7-2 15397 Humboldt on Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  UC1713302  Hackelia setosa Joseph P. Tracy 1937-7-25 15547 Humboldt Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  UCD85239  Hainardia cylindrica Joseph P. Tracy 1938-7-15 16071 Humboldt Mouth of Eel River. 3 Comment
  HSC102116  Hastingsia alba M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1020 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC508213  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
  RSA12428  Helenium bigelovii C. B. Wolf 1934-7-2 5866 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  UC1199145  Helenium bigelovii Joseph P. Tracy 1932-7-14 10541 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  RSA246777  Helenium bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35286 Humboldt Big Lagoon. 3 Comment
  CAS-BOT-BC306873  Helenium bolanderi Ira L. Wiggins 1932-7-19 5891 Humboldt About 1 1/2 miles north of Trinidad Head Comment
  RSA695692  Helenium puberulum J. R. Bruff 1937-8-17 943 Humboldt Richardson Grove. Comment
  UC34533  Helianthus bolanderi Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
Read comments
Apr 6 2008
  UCD132965  Helminthotheca echioides Collector unknown Date Unknown s.n. Humboldt exact location unknown. Comment
  POM160904  Hemizonia clevelandii Joseph P. Tracy 1925-7-12 7200 Humboldt Trinity River Valley, near the South Fork. Northern Coast Ranges. 305 Comment
  CAS-BOT-BC309989  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1914-7-5 4570 Humboldt Northern Coast Ranges. High Prairie on Bald Mountain 1066 Comment
  CAS-BOT-BC309994  Hemizonia congesta subsp. tracyi S. K. Harris 1936-6-20 s.n. Humboldt Bluff above Van Duzen River about 1 mile west of Bridgeville Comment
  HSC71740  Hemizonia congesta subsp. tracyi M. A. Baker 1980-6-26 2420 Humboldt Near Sims Creek 610 Comment
  RSA388122  Hemizonia congesta subsp. tracyi C. B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  UC1223092  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1946-11-17 17664 Humboldt river bar of Eel at mouth of Van Duzen River; Eel River Comment
  UC180195  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1914-7-5 4570 Humboldt Bald Mountain 1066 Comment
  UC205207  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1920-8-1 5348 Humboldt Kneeland Prairie 762 Comment
  UC249804  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1923-6-20 6338 Humboldt 4 mi n Garberville; Northern Coast Ranges 121 Comment
  HSC55744  Heracleum maximum G. L. Clifton, Terry Griswold 1979-7-26 10258 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC56157  Heracleum maximum G. L. Clifton, Terry Griswold 1979-8-1 12022 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC79539  Heracleum maximum Kenneth Clark 1979-7-1 460 Humboldt Deadman's Gulch 11 Comment
  HSC39822  Hesperevax sparsiflora var. brevifolia R. Becking 1976-5-2 Humboldt Along Samoa peninsula at the Samoa airstrip at Fairhaven Comment
  JEPS11797  Heterocodon rariflorum Lincoln Constance 1934-6-19 915 Humboldt near Grasshopper Peak summit; South Fork Eel River, Bull Creek Region 914 Comment
  POM208987  Heterocodon rariflorum Lincoln Constance 1934-6-19 915 Humboldt E slope of Grasshopper Peak, Bull Creek watershed, Humboldt Redwood Park. 762 Comment
  SEINET10840493  Heterocodon rariflorum Lincoln Constance 1934-6-19 Constance 915 Humboldt E OF GRASSHOPPER PEAK, BULL CREEK 2500 Comment
  SEINET10972515  Heterocodon rariflorum Harold E. Parks, Joseph P. Tracy Parks 11084 Humboldt GROUSE MTN Comment
  RSA0072456  Heteromeles arbutifolia Percy C. Everett, E. K. Balls 1959-10-24 23951 Humboldt 6 mi SW from Siskiyou-Humbolt county line, Somesbar to Orleans. 152 Comment
  CAS-BOT-BC311076  Heterotheca oregona var. rudis Alice Eastwood 1921-7-21 10667 a Humboldt Van Duzen River Comment
  RSA298359  Heuchera micrantha var. hartwegii J. P. Smith 1973-5-26 6825 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1223082  Hieracium albiflorum Joseph P. Tracy 1947-7-9 17850 Humboldt Horse Mountain 1432 Comment
  UC1223085  Hieracium albiflorum Joseph P. Tracy 1948-9-5 18181 Humboldt high ridge e Grove's Prairie (near Elk Camp on the Grizzly Camp Road); Trinity Summit 1524 Comment
  CAS-BOT-BC316004  Hieracium nudicaule Joseph P. Tracy 1932-7-17 10659 Humboldt Corral Prairie, Trinity Summit 1584 Comment
  SDSU1120  Hierochloe occidentalis Wayne A. Bemis, R. Becking 1964-4-17 WAB,# 256 Humboldt North Coast redwood forest Freshwater Forest, Freshwater 143 Comment
  UC180229  Holcus lanatus Joseph P. Tracy 1913-6-22 4271 Humboldt opposite Buck Mountain (in valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC34072  Holcus lanatus J. P. Tracy 1901-7-24 1218 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC154228  Holodiscus discolor Joseph P. Tracy 1908-6 2927 Humboldt opposite of Buck Mountain (Northern Coast Ranges, Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC149904  Holodiscus discolor J. H. Thomas 1949-6-14 925 Humboldt Klamath River Valley between Weitchpec and Hoopa Comment
  HSC89903  Hordeum brachyantherum Leonel Arguello 1989-6-11 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  HSC10216  Hordeum brachyantherum subsp. brachyantherum J. P. Tracy 1933-6-6 12508 Humboldt Bluffs in Trinidad 9 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
  UC38634  Hordeum marinum subsp. gussoneanum Harley P. Chandler 1901-6-1 1431 B Humboldt Klamath River North Coast Ranges, Klamath River 335 Comment
  UC187307  Hordeum murinum subsp. leporinum Joseph P. Tracy 1911-6-25 3243 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC536630  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt Foot of low hills south of Fields Landing 6 Comment
  CDA20429  Horkelia tridentata P. Haggard 2002-8-5 PDR P 070940 Humboldt Northwestern California; USFS property roadside in the vicinity of Blue Lake. 0 Comment
  HSC34653  Horkelia tridentata var. flavescens D. E. Anderson 1972-6-20 5726 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC76241  Horkelia tridentata var. flavescens Denis Kearns 1981-6-24 9 Humboldt Near Cedar Camp 1219 Comment
  CAS-BOT-BC206124  Hosackia crassifolia Alice Eastwood; John Thomas Howell 1937-6-23 4852 Humboldt 5 miles from Kneeland on road to Korbel Comment
  HSC40128  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, James Nelson 1976-7-28 3077 Humboldt Beside rd. to Pine Mtn. 1524 Comment
  UCD106050  Hosackia rosea Joseph P. Tracy 1949-6-20 18321 Humboldt Near Boynton Prairie 12 miles southeast of Arcata. Comment
  HSC39777  Hydrocotyle ranunculoides Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  UC35519  Hydrophyllum occidentale W. C. Blasdale 1896-6-6 Humboldt McBride's Comment
  JEPS1636  Hydrophyllum tenuipes Joseph P. Tracy 1925-6-1 6690 Humboldt Lawrence Creek Northern Coast Ranges (at crossing of the Kneeland Road) 457 Comment
  SEINET10720071  Hypericum anagalloides Charles L. Hitchcock, James S. Martin 1939-7-14 Hitchcock 5442 Humboldt Woods 7 miles east of Shelter Grove. 244 Comment
  UC1222165  Hypericum concinnum Joseph P. Tracy 1950-5-24 18688 Humboldt where Knight's Valley enters Alexander Valley (and leaves Muyacama Creek) Comment
  UC668260  Hypericum formosum var. scouleri Joseph P. Tracy 1935-7-21 14112 Humboldt opposite mouth of Willow Creek (Lack Pond); Trinity R. Valley, Lack Pond 152 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
  UC1122120  Hypericum perforatum H. L. Person 1932-7-16 Humboldt Korbel Eureka Quad., Korbel Comment
  UC1198414  Hypericum perforatum Joseph P. Tracy 1932-8-21 10362 Humboldt lower w. foothills of Chaparral Mt. (Three Cabins); Northern Coast Ranges, foothills of Chaparral Mt., Three Cab 457 Comment
  CAS-BOT-BC401231  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt Near Klamath River, about 1/2 mile north of town of Orleans Comment
  HSC12005  Hypericum perforatum Wilbur Peterson 1970-10-18 60 Humboldt 200 yards S of Mad River Bridge on Hwy 101 Comment
  HSC23147  Hypericum perforatum Thomas W. Nelson 1970-10-18 251 Humboldt Beside Hwy. 101, 100 yds. N of bridge over Mad River Comment
  RSA46497  Hypericum perforatum Doris K. Kildale 1925-6-29 932 Humboldt Van Duzen R. near Alton Comment
  SDSU6911  Hypericum perforatum D. F Howe 1961-8-2 3118 Humboldt 10.5 miles east of Orick on Bald Mt.road, humboldt, Co. 762 Comment
  UC1223074  Hypochaeris glabra Joseph P. Tracy 1948-5-31 18020 Humboldt Dobbyn Creek 152 Comment
  UC249880  Hypochaeris glabra Joseph P. Tracy 1923-6-19 6303 Humboldt 762 Comment
  CAS-BOT-BC311433  Hypochaeris radicata Frank W. Peirson 1923-7-9 3934 Humboldt Auto camp on Eel River, Humboldt County State Park Comment
  UCD128252  Ilex aquifolium Linda M. Barker 1976-6-14 1594 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC206838  Iliamna latibracteata H. E. Parks; S. T. Parks 1935-6-1 5593 Humboldt East of Prairie Creek, north of Orick Comment
  JEPS67376 Image available Iliamna latibracteata Joseph P. Tracy 1926-6-12 7585 Humboldt Prairie Creek Northern Coast Ranges. 152 Comment
  UC668129 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 10104 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
Read comments
Feb 27 2012
  POM265999  Iris Lincoln Constance 1942-5-12 2893 Humboldt Klamath River 2 miles north of Orleans. 122 Comment
  SEINET4170668  Iris W. W. Eggleston 1913-6-8 6 Humboldt Calaveras Ranger Station. 1000 Comment
  UCR138875  Iris douglasiana J. Marshall, J. Savage, L. Allison 1997-3-15 3 Humboldt Hwy 36, 0.5 mi west of Bridgeville 183 Comment
  HSC13862  Iris douglasiana S. R. Johnson 1965-4-16 44 Humboldt 1.5 mi. S of Luffenholtz Beach Comment
  RSA0009453  Iris douglasiana Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC175302  Iris douglasiana Joseph P. Tracy 1912-4-21 3571 B Humboldt Humboldt Hill; Northern Coast Region, Humboldt Bay Region 0 Comment
  JEPS86127  Iris macrosiphon Wayne Roderick 1966-5-5 Humboldt ca 5 mi n Bridgeville 609 Comment
  RSA21085  Iris macrosiphon Carl B. Wolf 1937-6-19 8913 Humboldt North Coast Range, 7.2 mi. above Bridgeville on grade to Dinsmores. 457 Comment
  RSA135818  Iris purdyi E. K. Balls 1957-5-26 22607 Humboldt 0.3 miles northeast of Harris on road to Alder Point 762 Comment
  UC1222653  Isatis tinctoria Joseph P. Tracy 1950-8-20 19316 Humboldt w side at mouth of Salmon River, Klamath River Salmon River; Klamath River, Salmon River Comment
  HSC37499  Jaumea carnosa J. D. Ackerman 1975-8-2 617 Humboldt Hwy. 101 between Arcata and Eureka. Humboldt Bay across from Murray Field Comment
  UC741148  Jaumea carnosa C. C. and S. K. Harris 1939-8-26 994 Humboldt salt marsh south shore Humboldt Bay Comment
  UCR27990  Juncus bolanderi A. C. Sanders 1981-8-6 2300 Humboldt Near Orick, 1.6 mi west of Hwy 101 on Davison Road toward Gold Bluffs Beach Comment
  UC183674  Juncus bolanderi Joseph P. Tracy 1908-7-22 2907 Humboldt between Van Duzen and Mad Rivers (on Dinsmore's Ranch); Northern Coast Region 1066 Comment
  UC1541651  Juncus bufonius Harold E. Parks Mar 1933 4300 Humboldt Spruce Cove Trinidad Comment
  UC213332  Juncus confusus Joseph P. Tracy 1919-9-22 5272 1/2 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC97306  Juncus covillei M. Mesler 2007-7-15 785 Humboldt Near Grouse Mtn., 0.9 mi. S of NF 1 on FS Rd. 5N04 1582 Comment
  HSC98841  Juncus covillei Cara Witte 2008-7-16 912 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UCD141425  Juncus covillei Linda M. Barker 1976-6-22 1623 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC249747  Juncus covillei var. obtusatus Joseph P. Tracy 1923-6-19 6294 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  UC183782  Juncus covillei var. obtusatus Joseph P. Tracy 1908-7-14 2871 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CHSC102918  Juncus effusus subsp. pacificus Peter F. Zika 2007-7-30 23328 Humboldt North Coast. Above E side of Route 101, at high point between Stone and Big Lagoons. 80 Comment
  JEPS66996  Juncus effusus subsp. pacificus W. L. Jepson 1936-8-17 17908 Humboldt 2 mi s Fields's Landing (near Still's Ranch) Comment
  BLMAR316  Juncus effusus subsp. pacificus Jennifer Anthony-Wheeler 2002-8-6 316 Humboldt King range, grwong at mattole beach behind dune 6 Comment
  JEPS66986  Juncus ensifolius Joseph P. Tracy 1918-7-5 5027 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  RSA246769  Juncus falcatus subsp. sitchensis Robert F. Thorne, Percy C. Everett 1965-8-7 35175 Humboldt Big Lagoon. 2 Comment
  HSC36888  Juncus laccatus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2057 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  HSC58027  Juncus laccatus G. L. Clifton 1979-7-31 11842 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC96370  Juncus lescurii Gordon Leppig 1999-10-3 1259 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  UCD150380  Juncus lescurii William Anderson and H. Mc. 1964-8-5 s.n. Humboldt Dry Lagoon. Comment
  HSC57634  Juncus parryi G. L. Clifton, Griswold 1979-7-25 10791 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC63280  Juncus parryi M. A. Baker 1979-6-27 930 Humboldt Rock faces E of Oregon Creek Comment
  HSC82168  Kalmia polifolia D. K. Imper 1985-6-13 Humboldt Edge of Waterdog Lake 1768 Comment
  RSA698922  Keckiella corymbosa J. R. Bruff 1937-8-17 938 Humboldt Richardson Grove, bed of Eel River. Comment
  UC1222788  Keckiella corymbosa Joseph P. Tracy 1950-8-20 19314 Humboldt 1 mi s mouth of Salmon River (along e side of Salmon River); Klamath River Comment
  UC146235  Keckiella corymbosa Joseph P. Tracy 1908-7-31 2935 Humboldt Bridgeville Northern Coast Ranges (rocks along Van Duzen River) 152 Comment
  UC1132146  Koeleria macrantha H. S. Yates 1936-6-17 5699 Humboldt lower nw slope Buck Mountain; South Fork Peak Quad., lower nw slope Buck Mountain Comment
  UC403009  Kopsiopsis strobilacea Joseph P. Tracy 1916-6-25 4739 Humboldt Ridge between Little River and Redwood Creek. 457 Comment
  POM187943  Lactuca biennis Marcus E. Jones 1931-7-14 29090 Humboldt South of Eureka Comment
  JEPS38993  Lagophylla ramosissima W. L. Jepson 1932-8-8 16482 Humboldt Canoe Creek; Grasshopper Peak 1066 Comment
  HSC14215  Lamium purpureum D. E. Anderson 1962-3-18 1945 Humboldt Corner of Hwy. 101 and Hwy. 299 Comment
  HSC31138  Lapsana communis J. O. Sawyer 1970-6-24 2269 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  CAS-BOT-BC337996  Lasthenia californica Doris K. Kildale 1926-4-30 1933 Humboldt Fruitland Hill - Harris road Comment
  JEPS82141  Lathyrus biflorus Thomas W. Nelson and Tom Jimerson 1980-8-4 6233 Humboldt ne slope Red Mountain; North Coast Ranges, Blocksburg Quad. 1371 Comment
  UC162576  Lathyrus jepsonii var. californicus Harley P. Chandler Jun 1910 1507 Humboldt Klamath River North Coast Ranges 426 Comment
  RSA239724  Lathyrus littoralis Larry E. DeBuhr, Gary D. Wallace 1973-5-22 1152 Humboldt In sand at beach at Big Lagoon. Comment
  HSC39108  Lathyrus nevadensis var. nevadensis D. E. Anderson, J. P. Smith 1971-7-6 Humboldt Horse Mtn. Comment
  HSC79370  Lathyrus palustris Kenneth Clark 1980-3-27 560 Humboldt S of Dead man's Gulch 0 Comment
  BLMAR275  Lathyrus polyphyllus Jennifer Anthony-Wheeler 1999-7-30 275 Humboldt Lacks Creek, growing by fdsides adjacent to forest 1219 Comment
  RSA64949  Lathyrus polyphyllus C. L. Hitchcock 1949-6-8 19094 Humboldt 3 miles W of Willow Creek, near Highway #299. Comment
  SEINET200583  Lathyrus polyphyllus Joseph Tracy 1935-7-22 14126 Humboldt Trinity Summit Klamath Mountains; In fir woods near Corral Prairie 1524 Comment
  UC1222407  Lathyrus polyphyllus Joseph P. Tracy 1946-6-15 17570 Humboldt near Green Point (w of Redwood Creek on Trinity Highway) 457 Comment
  UC1222397  Lathyrus vestitus Joseph P. Tracy 1949-6-20 18316 Humboldt 5 mi se Arcata; Fickle Hill 609 Comment
  UC168987  Lathyrus vestitus var. vestitus Joseph P. Tracy 1912-8-3 3971 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS13464  Layia gaillardioides Joseph P. Tracy 1936-6-9 14875 Humboldt Bear River Ridge 609 Comment
  SEINET3374979 Image available Lemna minor Joseph P. Tracy 1932-8-21 10370 Humboldt Three Cabins Ranch; on E side of Mad River on W slope of Chaparral Mt. 457 Comment
  UC1101252  Lemna valdiviana Malcolm A. Nobs, S. Galen Smith 1949-8-9 1249 Humboldt Clam Beach Comment
  HSC38941  Leontodon saxatilis subsp. saxatilis Linda M. Barker 1976-6-1 1562 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  RSA170231  Lepidium heterophyllum Joseph P. Tracy 1942-6-15 17140 Humboldt Miranda. 91 Comment
  UC1116215  Lepidium nitidum Joseph P. Tracy 1948-5-31 17990 Humboldt Harris 762 Comment
  UC161584  Lepidium nitidum Joseph P. Tracy 1908-6-8 2642 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC226526  Leptosiphon acicularis Doris K. Kildale 1926-4-25 1800 Humboldt Willow Creek Flat 152 Comment
  RSA259570  Leptosiphon androsaceus Thomas W. Nelson 1975-6-21 1948 Humboldt Hwy 36, 5 miles east of Bridgeville Comment
  UC908950  Leptosiphon latisectus Joseph P. Tracy 1927-5-8 7976 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  CAS-BOT-BC334617  Leucanthemum vulgare Joseph P. Tracy 1937-6-23 15360 Humboldt Along Mad River near Blue Lake 15 Comment
  CHSC299  Leucanthemum vulgare M. Underhill 1952-7-14 Humboldt Field. 15 Comment
  JEPS37563  Leucanthemum vulgare Lincoln Constance 1934-6-6 827 Humboldt Fire trail Dyerville tottorse Prairie; Bull Creek Region Comment
  SEINET4691296 Image available Leucanthemum vulgare Joseph P. Tracy 1918-1 5080 Humboldt Northern Coast Range; Around Humboldt Bay; Humboldt Hill 152 Comment
  HSC81933  Leucanthemum vulgare Thomas W. Nelson, Jane P. Nelson 1979-7-3 4960 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC48392  Lewisia leeana Brad Klipfel 1973-6-10 152 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA295817  Leymus vancouverensis Lyman Benson 1929-7-15 1818 Humboldt Clam Beach, Trinidad Comment
  SEINET7292880 Image available Leymus vancouverensis Malcolm A. Nobs, S. Galen Smith 1949-1 1204 Humboldt Humboldt Bay, ca. 2 miles north of Eureka Comment
  HSC99076  Ligusticum apiifolium Cara Witte 2007-7-3 405 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1231 Comment
  HSC34742  Ligusticum californicum Thomas W. Nelson 1974-7-19 1673 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC44546  Ligusticum californicum Brad Klipfel 1973-7-15 165 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC76428  Lilium bolanderi Denis Kearns 1981-7-6 87 Humboldt Near Mosquito Lake 1256 Comment
  HSC89328  Lilium columbianum E. Mackey 1986-6-16 Humboldt Patrick's Point State Park, near Ceremonial Rock Comment
  CAS-BOT-BC508392  Lilium columbianum Doris K. Kildale 1927-7-10 3739 Humboldt Gans Prairie, Bald Hills Road Comment
  CAS-BOT-BC508401  Lilium columbianum L. R. Abrams; R. Bacigalupi 1922-6-25 8297 Humboldt Bluffs north of Big Lagoon Comment
  HSC76429  Lilium kelleyanum Denis Kearns 1981-7-23 396 Humboldt Near Whiteys Peak. 1524 Comment
  UC666958  Lilium kelloggii Joseph P. Tracy 1929-7-4 8637 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC130685  Lilium occidentale A. M. Vollmer; L. Beane 1953-7-1 118 Humboldt unspecified Comment
  UC1197702  Lilium occidentale Doris Kildale 1925-7-20 Humboldt near Bayside 15 Comment
  UC1198243  Lilium occidentale Joseph P. Tracy 1924-9-21 6886 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC666959  Lilium occidentale Joseph P. Tracy 1927-9-25 8377 Humboldt 2 mi s Field's Landing (at Still's Ranch) 6 Comment
  HSC74323  Lilium pardalinum subsp. pardalinum Gail Newton 1980-7-20 1621 Humboldt Near Bell Swamps 1426 Comment
  HSC102580  Lilium pardalinum subsp. shastense M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1567 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC133013  Lilium washingtonianum subsp. purpurascens Doris K. Kildale 1925-7-2 969 Humboldt Bug Creek, Buttes 1219 Comment
  SD42236  Limnanthes douglasii Carl B. Wolf 1937-6-14 8818 Humboldt Kneeland Prairie 822 Comment
  UC1198593  Linanthus androsaceus Joseph P. Tracy 1922-6-18 6093 Humboldt Head of Middle Yager Creek Northern Coast Ranges 762 Comment
  SEINET8729346 Image available Linanthus harknessii Joseph P. Tracy 1933-1 1283 Humboldt Grouse Mountain. Comment
  RSA0087552  Linnaea borealis subsp. longiflora Mrs. M. H. Manning 1901-06 108 Humboldt Trinity Summit. Comment
  HSC16643  Listera cordata var. nephrophylla J. F. Knezevich 1968-5-21 449 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC37702  Listera cordata var. nephrophylla M. Mesler, J. D. Ackerman 1976-4-28 755 Humboldt 1 mi. E of old Hwy. 299 and Korbel turnoff, 1.5-2 mi. from Blue Lake, Simpson Demonstration Forest Comment
  JEPS37740  Lithocarpus densiflorus W. L. Jepson 1902-7-14 2024 A Humboldt Hupa Comment
  UC54688  Lithocarpus densiflorus P. E. Goddard 1901-7-6 46 Humboldt Hupa Comment
  SEINET13953004 Image available Lithocarpus densiflorus J. Sandborg, F. Sandborg 1968-1 58 Humboldt Bluff Creek near Notice Creek 792 Comment
  CAS-BOT-BC36106  Lithocarpus densiflorus var. densiflorus Joseph P. Tracy 1927-8-28 8361 Humboldt Near Boynton Prairie Comment
  CAS-BOT-BC36581  Lithocarpus densiflorus var. echinoides Doris Kildale Gillespie 1931-6-7 10604 Humboldt South Fork Mt., Brush lookout 1726 Comment
  UC667092  Lithophragma campanulatum Joseph P. Tracy 1934-4-15 13179 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC11920  Lithophragma glabrum J. Burtt Davy 1899-6-23 5795 Humboldt Trinity Summit; North Coast Ranges, Trinity Summit 2133 Comment
  HSC6863  Lobularia maritima R. T. Forester 1963-3-31 35 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  UC38782  Lolium multiflorum Harley P. Chandler May, 1901 1103 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  HSC10308  Lolium perenne Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  HSC10309  Lolium perenne E. W. Styskel 1964-4-25 69 Humboldt Alongside College Elementary School on Humboldt State College Campus, Arcata. Comment
  UCD66658  Lolium temulentum A. H. Murphy 1947-5-12 Humboldt Fairgrounds at Ferndale. Comment
Read comments
May 24 2012
  UC642258  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1927-3-27 7852 Humboldt near the South Fork Trinity R. Valley 182 Comment
  UC1197161  Lomatium dissectum var. dissectum Joseph P. Tracy 1926-5-15 7480 1/2 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC659308  Lomatium dissectum var. dissectum Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2617 Humboldt lower slopes of Buck Mt. near Eureka; Buck Mt. 792 Comment
  RSA0000726  Lomatium donnellii W. L. Jepson 1934-5-8 16716 Humboldt Redway, South Fork Eel River. Comment
  HSC102607  Lomatium macrocarpum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1594 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC56077  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-31 11756 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC70564  Lomatium macrocarpum M. A. Baker 1980-7-23 3141 Humboldt Near Orleans Mtn. 1859 Comment
  UC1197153  Lomatium macrocarpum Joseph P. Tracy 1949-8-4 18417 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC35753  Lomatium macrocarpum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1997 Humboldt French Camp, Bald Hills. Comment
  RSA21095  Lomatium macrocarpum C. B. Wolf 1937-6-14 8823 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  HSC63089  Lomatium martindalei M. A. Baker 1979-7-6 1013 Humboldt 0.6 k. W of FS 15N01 on FS 12N16 toward Bald Mtn. Comment
  HSC97458  Lomatium nudicaule Cara Witte 2007-5-29 125 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC1197146  Lomatium triternatum var. triternatum Joseph P. Tracy 1930-7-10 8875 Humboldt Northern Coast Ranges, Brannan Mt. 1066 Comment
  UC1347206  Lomatium utriculatum Alice Eastwood and John Thomas Howell 1937-6-23 4767 Humboldt Dinsmore's Comment
  SEINET13944678 Image available Lomatium utriculatum William A. Weber 1965-1 12292 Humboldt slope above Van Duzen River W of Dinsmore; 2400 ft alt 732 Comment
  HSC58121  Lonicera conjugialis G. L. Clifton, Griswold 1979-8-1 12092 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC60070  Lonicera hispidula var. vacillans M. A. Baker 1978-5-6 502 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  POM284224  Lonicera hispidula var. vacillans Lyman Benson 1929-7-19 1864 Humboldt Dyerville to Mat[t]ole River. Comment
  RSA246894  Lonicera involucrata R. F. Thorne, P. C. Everett 1965-8-9 35301 Humboldt Big Lagoon. 3 Comment
  HSC3932  Lonicera involucrata var. ledebourii H. E. Parks May 1935 5542 Humboldt Spruce Cove, Trinidad. Comment
  SFV18507  Lonicera involucrata var. ledebourii D. Graydon 2002-5-5 39 Humboldt Mad River Fish Hatchery, Blue Lake. Along east-facing slope of Mad River, next to gravel trail. 16 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
  CAS-BOT-BC200912  Lotus A. M. Vollmer; L. Beane 1951-6-11 141 Humboldt Along Van Duzen River, at Bridgeville Comment
  UC162851  Lotus aboriginus J. P. Tracy 1906-5-20 2462 Humboldt immediate vicinity Eureka 0 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
  SEINET3523157 Image available Lotus aboriginus Joseph P. Tracy 1949-6-20 18321 Humboldt Near Boynton Prairie, 12 mi SE of Arcata Comment
  SEINET3523625 Image available Lotus americanus Joseph P. Tracy 1912-7-24 3807 Humboldt Eureka 0 Comment
  JEPS55451  Lotus formosissimus W. L. Jepson 1902-6-24 1922 Humboldt Eureka to Arcata Comment
  SEINET8721487 Image available Lotus formosissimus H. E. Parks, S. T. Parks 1952-1 s.n. Humboldt Spruce Cove, Trinidad. Comment
  HSC74402  Lotus humistratus Gail Newton 1980-6-28 739 Humboldt Near Mad River Butte. 1536 Comment
  RSA90323  Lotus humistratus F. W. Peirson 1926-7-13 7047 Humboldt Mad River, vicinity of Blue Lake. Comment
  UC1223395  Lotus micranthus Joseph P. Tracy 1938-6-8 15869 Humboldt Samoa San Dunes Comment
  SEINET12154222  Lotus nevadensis var. douglasii H. P. Chandler 1901-1 1487 Humboldt Klamath R 427 Comment
  UC179938  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1914-7-4 4527 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC169299  Lotus purshianus var. purshianus Joseph P. Tracy 1912-8-3 3973 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC179939  Lotus purshianus var. purshianus Joseph P. Tracy 1914-7-12 4583 Humboldt Eureka Northern Coast Region 0 Comment
  UC168699  Lotus scoparius J. P. Tracy 1912-7-23 3801 Humboldt 3 mi above mouth of South Fork of Eel River; South Fork of Eel River 30 Comment
  SEINET3560045 Image available Lotus stipularis var. subglaber Joseph P. Tracy 1914-7-5 4576 Humboldt Bald Mountian, between High Prairie and Snow Camp 1219 Comment
  RSA406270  Lotus unifoliolatus Bonnie C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  HSC71596  Lotus unifoliolatus var. unifoliolatus M. A. Baker 1980-6-26 2407 Humboldt Near Sims Creek 610 Comment
  HSC78972  Lotus unifoliolatus var. unifoliolatus L. P. Janeway, Paul Wilson 1984-5-25 824 Humboldt N Spit of Humboldt Bay, BLM lands near the Coast Guard Station 5 Comment
  HSC49990  Luina hypoleuca M. A. Baker 1979-6-6 776 Humboldt N facing slope near to road to Hospital Mt. 610 Comment
  UC48706  Lupinus albicaulis var. shastensis Hilda W. Grinnell 1932-7-22 39 Humboldt on slope below U.S.G.S. signal rock, South Fork Mountain (ne slope of South Fork Mountain); ne slope of South Fork Mt. 1767 Comment
  HSC14780  Lupinus arboreus D. A. Haskell 1966-4-23 28 Humboldt Near the town of Samoa Comment
  HSC38340  Lupinus arboreus Peter Sorensen 1976-7-14 Humboldt N Spit Comment
  HSC36191  Lupinus constancei Thomas W. Nelson 1973-7-10 1017 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  UC503014  Lupinus elmeri Joseph P. Tracy Jul 16 1930-Jul 19 1930 8954 Humboldt near Blake lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  BLMAR167  Lupinus latifolius Donald Hazlett 1994-6-7 167 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  POM66233  Lupinus latifolius subsp. latifolius Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  RSA161252  Lupinus latifolius subsp. latifolius Peter H. Raven, R. Snow 1958-7-20 13645 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  CHSC921  Lupinus littoralis M. Underhill 1952-7-13 Humboldt Near coast. 0 Comment
  RSA21447  Lupinus luteolus Carl B. Wolf 1937-8-12 9211 Humboldt 20 mi. north of Bridgeville on road to Kneeland. 457 Comment
  SEINET10486132  Lupinus polycarpus Donald E. Bright 1962-6-10 Bright 269 Humboldt Roadside, 5 mi s of ferndale. Comment
  RSA20858  Lupinus polyphyllus var. grandifolius Carl B. Wolf 1937-6-18 8898 Humboldt 1/2 miles E of Alton. 21 Comment
  RSA20859  Lupinus polyphyllus var. grandifolius Carl B. Wolf 1937-6-18 8898 Humboldt 1/2 miles E of Alton. 21 Comment
  HSC14863  Lupinus rivularis J. L. Baker 1965-4-28 29 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. Comment
  UC1488739  Lupinus tracyi Marc Baker 1980-7-22 3060 Humboldt Salmon Mountain; Salmon Mt. Quad., near Salmon Mountain 287 Comment
Read comments
Jul 7 2009
  UC1103681  Luzula comosa Joseph P. Tracy 1906-5-20 2460 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  UCD142120  Luzula comosa R. Tofsrud 1948-9-1 s.n. Humboldt between Telton Hill and Clear Lake, on road from Horse Mt. to Grouse Mt. Comment
  UC249754  Luzula macrantha Joseph P. Tracy 1923-6-24 6368 Humboldt Northern Coast Ranges. In cold wet meadow near High Prairie; Bald Mountain 1066 Comment
  UCR265767  Luzula macrantha Peter F. Zika 2011-7-3 25500 Humboldt Outer North Coast Ranges, Titlow Hill Road, near junction with Forest Road 6N36, 1 air mi south of Horse Mountain 1410 Comment
  RSA21016  Lysichiton americanus Carl B. Wolf 1937-9-11 9325 Humboldt Redwood Highway, 3 miles N of Orick at Davison s Ranch on Prairie Creek. 61 Comment
  SEINET11770115  Lysichiton americanus L. S. Rose 1932-1 3241 Humboldt Eureka 3 Comment
  UC1222701  Lysichiton americanus Joseph P. Tracy 1950-7-6 18992 Humboldt lower end of Burr Valley Comment
  UC176173  Lysichiton americanus Joseph P. Tracy 1913-3-30 4029 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC1198469  Lythrum hyssopifolia Joseph P. Tracy 1942-6-15 17117 Humboldt near Redcrest Resort (Englewood); Englewood 91 Comment
  UC420699  Lythrum hyssopifolia Harley P. Chandler June, 1901 1393 Humboldt North Coast Ranges, Hupa Indian Reservation Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC59797  Lythrum hyssopifolia Clark L. Miller 1979-5-19 1148 Humboldt Along Samoa Blvd. before railroad tracks, 4 mi. W of Arcata. Comment
  UC89370  Madia elegans Harley P. Chandler June 1901 1409 Humboldt Klamath River 243 Comment
  UC1093114  Madia elegans Richard Snow 1957-8-31 306 Humboldt 4 mi n of Garberville; Hayfield, Dean Creek Lodge Comment
  UC204700  Madia exigua Joseph P. Tracy 1918-7-5 5006 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  HSC49904  Madia exigua Maralyn O'Meara 1973-6-12 203 Humboldt S-facing slope Comment
  SEINET7016732  Madia exigua Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near west end of Bald Hills, southeast of Orick. Comment
  JEPS22206  Madia gracilis Joseph P. Tracy 1931-6-28 9588 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Buck Mountain 762 Comment
  UC175195  Madia gracilis Joseph P. Tracy 1913-6-22 4258 Humboldt Dinsmore's Ranch; Valley of Van Duzen River, Buck Mountain 762 Comment
  RSA792307  Madia madioides Rebecca Wenk, P. Hopkinson, M. Hammond, S. Spiegal 2008-6-6 835 Humboldt Humboldt Redwoods State Park. Look Prarie, 0.5 air miles north of Mattole Road, about 3 air miles west of Highway 101. 244 Comment
  UC581812  Madia sativa Joseph P. Tracy 1936-8-24 15178 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA43873  Mahonia nervosa H. M. Pollard 1947-9-1 s.n. Humboldt Somes Mtn., near Orleans. 1220 Comment
  RSA89891  Mahonia nervosa E. K. Balls, P. C. Everett 1953-10-13 18655 Humboldt 17.4 mi. E of jct Hwys 101 and 299 above Blue Lake. 274 Comment
  RSA376906  Maianthemum dilatatum Bonnie C. Templeton 1964-6-13 10182 Humboldt Along old 101 Highway to Trinidad Comment
  SEINET12043868  Maianthemum dilatatum H. C. Cantelow 1936-1 s.n. Humboldt 5 mi N of Orick Comment
  HSC42005  Maianthemum racemosum subsp. amplexicaule Tom Duebendorfer 1977-5-15 52 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC70842  Maianthemum racemosum subsp. amplexicaule Gail Newton 1980-6-16 185 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC511457  Maianthemum racemosum subsp. amplexicaule M. P. Dillingham 1972-4-30 s.n. Humboldt Vicinity of Whitehorn, Douglas fir forest Comment
  HSC45273  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1973-4-28 7 Humboldt Along Korbel to Maple Creek Rd., Canyon Creek Comment
  SD56734  Maianthemum racemosum subsp. amplexicaule Darley F. Howe 1963-5-26 Humboldt 3.7 miles east of Orick on Bald Hill Road. 487 Comment
  HSC98149  Maianthemum stellatum D. E. Anderson 1965-5-8 3630 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  CAS-BOT-BC512773  Maianthemum stellatum D. Baxter; S. Boren; C. Williams 1994-5-6 47 Humboldt West side of Titlow Road 0.35 miles south of Highway 299 853 Comment
  HSC15890  Maianthemum stellatum T. M. Mingo May 1965 Humboldt E of College Cove, N of Trinidad Comment
  RSA21603  Maianthemum stellatum Carl B. Wolf 1937-9-14 9350 Humboldt North Coast Range, Lord Ellis Road, 0.5 mile east of summit of Willow Creek Grade 762 Comment
  HSC98525  Malacothrix clevelandii Cara Witte 2008-7-10 845 Humboldt National Forest 1. 2 miles north of intersection with Forest Service Road 4N09. 1267 Comment
  HSC98021  Malacothrix floccifera Cara Witte 2007-7-8 427 Humboldt Board Camp Mountain. Pack trail 4N26. 1/2 mile from Tri Board Camp intersection. 1536 Comment
  CAS-BOT-BC140138  Malus fusca Doris K. Kildale 1926-7-10 2343 Humboldt Big Lagoon Comment
  HSC18698  Malus fusca Gerald T. Rood 1962-5-6 9 Humboldt Kneeland Rd. ca. 1 mi. W of Barry Rd. Comment
  HSC18699  Malus fusca J. W. Bosworth 1965-5-7 41 Humboldt 1/2 mi. S of Samoa Comment
  UC14182  Malus fusca W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  JEPS68651  Malva parviflora Lincoln Constance 1934-6-18 900 a Humboldt n border of Dyerville Flat (near South Fork Railroad Station and Post Office, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  SEINET12011533  Marah fabacea E. A. York 1990-1-10 2661 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC7034  Marah oregana D. B. Bader 1963-4-1 47 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  UC990712  Marah oregana Roxana S. Ferris 1951-9-5 12448 Humboldt Trinidad Head Comment
  HSC79515  Marah oregana Kenneth Clark 1980-3-1 513 Humboldt Shelter Cove, middle alluvial terrace, Dead Man's Gulch 37 Comment
  HSC89517  Marah oregana M. Roantree 1985-6-11 91 Humboldt E side of Trinidad Head Comment
  UC1198477  Marah oregana Joseph P. Tracy 1940-5-17 16548 Humboldt McClellan Mt. 762 Comment
  HSC29883  Matricaria discoidea Thomas W. Nelson 1971-11-11 599 Humboldt Foot of Murray Rd., McKinleyville. Comment
  UC1223204  Matricaria discoidea Joseph P. Tracy 1942-7-1 17368 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  HSC48059  Medicago arabica Thomas W. Nelson 1978-4-24 3889 Humboldt Eureka, along F St. between Orchard and Willow St. Comment
  RSA91365  Medicago arabica Joseph A. Ewan 1937-7-2 10458 Humboldt Trinidad to Trinidad Head. Comment
  HSC1869  Medicago polymorpha P. W. Shields 1956-4-14 Humboldt HSU campus Comment
  HSC48058  Medicago polymorpha Thomas W. Nelson 1978-4-24 3890 Humboldt Eureka, along F St. between Orchard and Willow St. Comment
  HSC79492  Medicago polymorpha Kenneth Clark 1980-6-15 700 Humboldt 300 yards SE of Dead Man's Gulch 8 Comment
  HSC47607  Melica californica J. P. Smith 1977-4-23 9023 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  CAS-BOT-BC262470  Melica subulata Joseph P. Tracy 1935-4-14 13778 Humboldt Miranda. Along South Fork of Eel River 121 Comment
  RSA183513  Melica subulata D. E. Anderson 1965-5-8 3631 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along highway 299. Comment
  UC1145129  Melica subulata Joseph P. Tracy 1942-6-2 17100 Humboldt 2 mi n Bridgeville 609 Comment
  HSC10375  Melica torreyana A. H. Murphy 1951-4-18 20 Humboldt Ft. Seward. 183 Comment
  UC30121  Mentzelia dispersa Chestnut and Drew 1888-7-21 Humboldt S Fork Mt. Comment
  JEPS26724  Mentzelia laevicaulis var. laevicaulis W. L. Jepson 1936-8-17 17939 Humboldt near Arcata; Mad River Comment
  POM247189  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt South Fork Mountain, near McKay Camp 1677 Comment
  HSC71036  Microsteris gracilis Thomas W. Nelson 1977-4-20 3328 Humboldt Along FS Rd. 1N15 at bridge over Mad River 457 Comment
  HSC77403  Microsteris gracilis L. P. Janeway 1983-4-16 229 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  UC1115824  Mimulus breweri Joseph P. Tracy 1939-7-9 16337 Humboldt Snow Camp 1402 Comment
  HSC20711  Mimulus dentatus P. Markle 1962-5-16 34 Humboldt Along road to City of Arcata reservoir Comment
  SEINET10570226  Mimulus floribundus Charlene A. Bennett 1976-8-6 Bennett 484 Humboldt Collected by hwy 101, n side of orick. Rocky area, densely forested by river. Comment
  HSC79509  Mimulus guttatus Kenneth Clark 1980-4-18 592 Humboldt Dead Man's Gulch 12 Comment
  UCR45415  Mimulus guttatus Kenneth Clark 1980-5-10 659 Humboldt Western Beach, Point Delgada 15 Comment
  HSC79538  Mimulus guttatus Kenneth Clark 1979-7-1 456 Humboldt Dead Man's Gulch; at Shelter Cove 11 Comment
  UC1196831  Mimulus guttatus Joseph P. Tracy 1937-5-31 15324 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS10794  Mimulus inodorus Lincoln Constance 1934-6-18 895 Humboldt border N. Dyerville Flat (near South Fork R.R. Station and P.O.); South Fork Eel River, Bull Creek Region Comment
  UC582716  Mimulus inodorus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8983 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC99591  Mimulus moschatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 260 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
  HSC44829  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3598 Humboldt Margin of pond above Alder Springs 1585 Comment
  POM273194  Mimulus moschatus var. sessilifolius Lyman Benson 1929-7-19 1873 Humboldt Mouth of Matole River. Comment
  UC1196828  Mimulus nasutus J. P. Tracy 1896-6-25 131 Humboldt immediate vicinity Eureka 0 Comment
  UC275482  Minuartia cismontana Joseph P. Tracy 1925-5-30 7040 Humboldt McClellan Mountain Northern Coast Ranges 822 Comment
  JEPS51444  Minuartia douglasii Lincoln Constance 1934-5-29 732 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  RSA183506  Minuartia douglasii D. E. Anderson 1965-5-15 3695 Humboldt About 5 miles N of Hoopa on Bald Hills Road. Comment
  UC1103535  Minuartia pusilla Joseph P. Tracy 1904-4-24 2030 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  UC667082  Mitella ovalis Joseph P. Tracy 1933-5-14 12183 Humboldt along Trinity Highway Willow Creek Canyon 365 Comment
  UC275345  Modiola caroliniana Joseph P. Tracy 1923-6-18 6288 Humboldt Northern Coast Ranges, Petrolia Petrolia Petrolia Petrolia; Northern Coast Ranges, Petrolia 60 Comment
  SEINET3996427 Image available Monardella odoratissima Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 2225 Comment
  HSC14275  Monardella odoratissima Doris K. Kildale 1927-7-22 3814 Humboldt Lasseck's Peak Comment
  HSC102085  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 989 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC215567  Monardella odoratissima subsp. pallida Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit Orleans Mt. 1828 Comment
  HSC73647  Monardella odoratissima subsp. pallida M. A. Baker 1980-7-23 3154 Humboldt Near Orleans Mtn. 1859 Comment
  UC32590  Monardella odoratissima subsp. pallida Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  UC1239679  Monardella purpurea Joseph P. Tracy 1935-7-14 14075 1/2 Humboldt Back of White Rock Springs; North Coast Ranges, Grouse Mountain 1554 Comment
  CAS-BOT-BC444805  Montia diffusa Volney Rattan 1882-1-1 s.n. Humboldt Unspecified Comment
  UC7839  Montia diffusa Harley P. Chandler May, 1901 1271 Humboldt North Coast Ranges 152 Comment
  CAS-BOT-BC445165  Montia parvifolia L. R. Abrams; R. Bacigalupi 1922-6-25 8282 Humboldt Big Lagoon south of Orick Comment
  HSC33082  Montia parvifolia Thomas W. Nelson, J. D. Ackerman 1974-5-14 1269 Humboldt Baker Beach, 4 mi. S of Trinidad Comment
  CAS-BOT-BC445154  Montia parvifolia A. M. Vollmer; L. Beane 1951-6-11 142 Humboldt Along Van Duzen River, at Bridgeville Comment
  HSC38339  Morella californica Peter Sorensen 1976-6-14 Humboldt N Spit of Humboldt Bay, S of Samoa Comment
  CAS-BOT-BC260571  Muhlenbergia filiformis Joseph P. Tracy 1930-7-16 8920 Humboldt South Fork Mountain: at McKay Camp 1676 Comment
  HSC45287  Muhlenbergia filiformis Brad Klipfel 1973-6-10 294 Humboldt E face of Grogan's Hole, N Trinity Mtn. area Comment
  SEINET200834 Image available Muhlenbergia filiformis Doris Kildale Humboldt Trinity Summit. 1524 Comment
  UC1103785  Muhlenbergia filiformis H. E. Parks and Joseph P. Tracy 1934-6-27 11083 Humboldt Grouse Mt. Northern Coast Ranges 1432 Comment
  SEINET5624170 Image available Myosotis sylvatica R. D. Modafferi 1965-1 s.n. Humboldt 0.5 mile south of Trinidad on old highway 101 305 Comment
  UCD87899  Nassella lepida A. H. Murphy 1951-5-18 43 Humboldt along road, 2.5 mi. northwest of Petrolia. Comment
  UC526767  Nassella pulchra Joseph P. Tracy 1927-5-8 7963 Humboldt slopes facing South Fork of Eel River; Northern Coast Ranges, Phillipsville 121 Comment
  CAS-BOT-BC60345  Nasturtium officinale Doris K. Kildale 1926-5-2 1901 Humboldt Willow Creek Flat. 152 Comment
  UC133641  Navarretia divaricata subsp. vividior Joseph P. Tracy 1906-7-4 2524 Humboldt near Hydesville (near mouth of Yager Creek); Northern Coast Region 60 Comment
  UC52878  Navarretia tagetina Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Comment
  HSC13571  Nemophila heterophylla Francis Winter 1960-4-24 Humboldt 2 mi. W of Hoopa Indian reservation, Bair Rd., near Supply Creek 305 Comment
  UC1239751  Nemophila menziesii Joseph P. Tracy 1923-3-17 6158 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  HSC13589  Nemophila menziesii D. E. Anderson 1965-4-24 3532 Humboldt Along Titlow Hill Rd. Comment
  UC1245392  Nemophila menziesii Joseph T. Gregory 1933-6-13 260 Humboldt summit Bear's-Hoopa Road 1066 Comment
  RSA33408  Nemophila menziesii var. atomaria Doris K. Kildale 1929-2-19 4265 Humboldt Little River. Comment
  CAS-BOT-BC219406  Nemophila parviflora Alice Eastwood; John Thomas Howell 1937-6-23 4817 Humboldt 5 miles east of Bridgeville Comment
  RSA254745  Nemophila parviflora var. parviflora Thomas W. Nelson, James Nelson 1973-5-28 934 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1103812  Nemophila pedunculata Joseph P. Tracy 1923-2-25 6147 Humboldt Cummings Creek Northern Coast Ranges, , at Cummings Creek (Carlotta) 60 Comment
  HSC99274  Noccaea fendleri subsp. glauca D. E. Anderson 1965-5-1 3587 Humboldt Along Hwy. 96, 3-4 mi. S of Weitchpec Comment
  CAS-BOT-BC60564  Noccaea fendleri subsp. glauca Lincoln Constance; Reed C. Rollins 1942-5-12 2887 Humboldt Klamath-Siskiyou Region. Klamath River 7 miles northeast of Weitchpec. 121 Comment
  HSC31494  Notholithocarpus densiflorus var. densiflorus Steve Selva, Roger Jensen 1974-8-27 83 Humboldt Along Hwy. 299, approx. 10 mi. E of Blue Lake Comment
  HSC41451  Nuphar polysepala Charles Eugene 1975-11-23 751123 .1 Humboldt Sweasey Lake, 11 mi. NW of Mt. Lassic (Signal Peak) 884 Comment
  HSC62976  Nuphar polysepala David Wheeler 1979-5-18 117 Humboldt Fieldbrook Elementary School, behind the baseball field Comment
  HSC20656  Nuttallanthus texanus L. H. Myers 1963-4-5 19 Humboldt Dunes W of Lanpheres Rd., Mad River slough area Comment
  CAS-BOT-BC142295  Oemleria cerasiformis Doris K. Kildale 1927-6-25 3567 Humboldt Shelton Cove in gully. Comment
  HSC99107  Oemleria cerasiformis Cara Witte 2008-6-13 721 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  HSC39449  Oenanthe sarmentosa Linda M. Barker 1976-8-24 1686 Humboldt 3 mi. W of Arcata Comment
  UC1400342  Oenanthe sarmentosa Robert F. Thorne and P. Everett 1965-8-9 35318 Humboldt Clam Beach County Park 3 Comment
  HSC58094  Oreostemma alpigenum var. andersonii G. L. Clifton, Griswold 1979-8-1 12010 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1199307  Oreostemma alpigenum var. andersonii Joseph P. Tracy 1937-8-12 15632 Humboldt Snow Camp, in and around meadow Snow Camp 1402 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
  HSC102095  Orobanche uniflora M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 998 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC48857  Orthilia secunda Brad Klipfel 1973-7-15 200 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA0006077  Orthocarpus castillejoides var. humboldtiensis Philip A. Munz 1925-6-20 9890 Humboldt Eureka. Comment
  RSA202254  Orthocarpus erianthus var. gratiosus L. D. Thurman 1965-4-8 626 Humboldt 4.4 miles S of Samoa, growing along the roadside in sandy soil Comment
  RSA523835  Orthocarpus faucibarbatus var. albidus Gordon H. True Jr. 1936-5-12 475 Humboldt 2 miles S of Eureka. 15 Comment
  UC1245385  Orthocarpus imbricatus Joseph T. Gregory 1935-7-23 701 Humboldt open places at Corral Prairie (Trinity Summit); , open places at Corral Prairie 1584 Comment
  UC1222796  Orthocarpus imbricatus Joseph P. Tracy 1951-6-26 19562 Humboldt halfway between Snow Camp and Twin Lakes; halfway between Snow Camp and Twin Lakes Comment
  POM147450  Orthocarpus purpurascens var. latifolius Joseph P. Tracy 1925-8-14 7230 Humboldt Near Samoa, on Humboldt Bay. Comment
  HSC55862  Osmorhiza berteroi G. L. Clifton, Terry Griswold 1979-7-25 10871 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  JEPS15910  Osmorhiza berteroi W. L. Jepson 1932-7-26 16419 Humboldt Bull Creek Comment
  BLMAR209  Osmorhiza berteroi Jennifer Anthony-Wheeler 1996-7-9 209 Humboldt Pilot ridge, growing throughout shady understory Comment
  UCR45439  Osmorhiza chilensis Kenneth Clark 1980-4-18 576 Humboldt North Coast, Shelter Cove, on access trail to Dead Man's Gulch 52 Comment
  HSC97459  Osmorhiza occidentalis C. Witte 2007-5-22 85 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1390 Comment
  RSA254742  Osmorhiza purpurea Thomas W. Nelson, James Nelson 1973-5-28 945 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC21585  Osmorhiza purpurea T. W. Beck 1963-5-10 49 Humboldt Camp Bauer, Korbel Comment
  UC1197418  Oxalis albicans subsp. pilosa Joseph P. Tracy 1927-4-2 7872 Humboldt Philipsville North Coast Ranges (South Fork of Eel River) 121 Comment
  HSC104035  Oxalis oregana E. R. Fyer 2015-3-19 7 Humboldt Six Rivers National Forest; along the East Fork of Willow Creek, off Hwy. 299 484 Comment
  HSC59195  Oxalis oregana Terry Roth 1979-5-20 59 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  UC726372  Oxalis oregana A. A. Heller 1923-7-8 13770 Humboldt near Pepperwood Comment
  POM186936  Oxalis oregana Marcus E. Jones 1931-7-14 28949 Humboldt South of Eureka Comment
  SD53235  Oxalis oregana Darley F. Howe 1962-5-22 3309 Humboldt 3.0 miles east of Orick n Bald Mountain road. 395 Comment
  SEINET3347650 Image available Oxalis oregana Joseph P. Tracy 1918-5-28 4940 Humboldt High Prairie Creek, east of Bald Mt. Comment
  UCD110982  Oxalis oregana R. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  UCSB18740  Oxalis oregana Jensen, Karen 1965-4-15 Humboldt 0.2 miles W of U.S. Highway 101, at Miranda turnoff 91 Comment
  HSC102179  Oxalis trilliifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1092 Humboldt Patterson Meadows 1566 Comment
  CAS-BOT-BC318155  Packera bolanderi var. bolanderi LeRoy Abrams 1916-7-11 6009 Humboldt Mouth of Grizzly Creek on Van Duzon River Comment
  POM204618  Panicum acuminatum var. acuminatum A. S. Hitchcock 1915-7-13 527 Humboldt Eureka Comment
  UC1145145  Panicum acuminatum var. acuminatum Joseph P. Tracy 1918-7-5 5014 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  UC526845  Panicum capillare Joseph P. Tracy 1930-10-12 9207 Humboldt Alton to Fortuna (Eel River on bars); Northern Coast Region, Eel River 15 Comment
  RSA44527  Panicum oligosanthes var. scribnerianum Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  CDA6200  Parentucellia viscosa D. G. Kelch 2007-7-25 7 .505 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  UCR30860  Parentucellia viscosa A. C. Sanders 1981-8-6 2307 Humboldt Russ Park, City of Ferndale 46 Comment
  UC902126  Paxistima myrsinites Joseph P. Tracy 1942-6-23 17246 Humboldt 2 mi. e. Box Camp; Trinity Summit 1524 Comment
  UC90221  Pedicularis groenlandica Joseph P. Tracy 1947-7-5 17824 Humboldt at Box Camp Box Camp; Trinity Summit 1463 Comment
  RSA151842  Pedicularis racemosa Francia Chisaki, H. K. Sharsmith 1959-8-22 4754 Humboldt At Happy Camp adjacent to Douglas Fir Forest. Just over Trinity County line. 915 Comment
  UC577404  Penstemon anguineus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8918 Humboldt near McKay Camp; South Fork Mountain (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC39933  Penstemon anguineus J. O. Sawyer 1970-6-25 2292 Humboldt 1646 Comment
  JEPS86690  Penstemon anguineus L. R. Heckard with T. I. Chuang 1990-7-15 6769 Humboldt ca 15 mi n Highway 36 (South Fork Mountain Rd); South Fork Mountain Rd., n of Hwy 36 1700 Comment
  HSC73629  Penstemon azureus M. A. Baker 1980-7-23 3146 Humboldt Near Orleans Mtn. 1859 Comment
  RSA33967  Penstemon heterophyllus subsp. purdyi Doris K. Kildale 1926-4-30 1935 Humboldt Bucilana Bridge. Comment
  UC1543128  Penstemon newberryi var. berryi W. K. Parks Jul 1933 1433 Humboldt South Fork Mountain Comment
  HSC56083  Penstemon procerus var. brachyanthus G. L. Clifton, Terry Griswold 1979-7-31 11771 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC81903  Penstemon procerus var. brachyanthus Thomas W. Nelson 1979-7-11 4995 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC3355579  Penstemon rattanii J. G. Lemmon June 1882 Humboldt near Kneeland Prairie; near Kneeland Prairie Comment
  POM15900  Penstemon rattanii subsp. rattanii Joseph P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie. 762 Comment
  JEPS6895  Penstemon rattanii var. rattanii Joseph P. Tracy 1906-6-10 2480 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC36644  Pentagramma triangularis J. D. Ackerman 1974-5-25 262 Humboldt Trinidad, South Trinidad Beach, S of Trinidad Head. Comment
  HSC37502  Pentagramma triangularis J. D. Ackerman 1974-5-25 264 Humboldt 0.25 mi. S of Lufenholtz Beach off Scenic Dr. between Moonstone and Trinidad Comment
  SEINET200760  Perideridia gairdneri Joseph P. Tracy 1948-9-5 18167 Humboldt Happy Camp Mountain. In Trinity Summit Range 6 miles NE of Hawkins Bar. 1280 Comment
  HSC102578  Perideridia gairdneri subsp. borealis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1565 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  JEPS22585  Perideridia gairdneri subsp. gairdneri Joseph P. Tracy 1941-8-24 17038 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  JEPS14223  Perideridia howellii Joseph P. Tracy 1930-10-26 9237 Humboldt Valley of South Yager Creek 762 Comment
  UC642297  Perideridia kelloggii Joseph P. Tracy 1930-10-26 9238 Humboldt Valley of South Yager Creek 762 Comment
  HSC94187  Persicaria capitata Gordon Leppig, Sylvia Leppig 2000-4-16 1298 Humboldt Corner of 17th and J St., Arcata Comment
  CAS-BOT-BC419741  Persicaria wallichii Mrs. C. D. Herriott 1954-9-2 s.n. Humboldt Along Redwood Highway between Trinidad Head and Patrick Point Comment
  HSC6056  Petasites frigidus var. palmatus S. S. Stutz 1963-3-24 13 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  RSA34328  Petasites palmatus J. Wendell Howe 1932-3-20 s.n. Humboldt Roadside near Orick. Comment
Read comments
Nov 24 2011
  BLMAR239  Phacelia Jennifer Anthony-Wheeler 1997-6-13 239 Humboldt King range, growing in dry cobbly part of creek bed where queen mine rd crosses S.Fork of Bear creek 463 Comment
  SEINET3119233 Image available Phacelia bolanderi Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15225 Humboldt Bolling Grove State Park. Comment
  UC1222903  Phacelia californica Joseph P. Tracy 1950-6-8 18763 Humboldt e slope from summit Domingo Hill (near Petrolia) Comment
  UCD120311  Phacelia californica James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6871 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC38128  Phacelia heterophylla subsp. virgata Thomas W. Nelson, James Nelson 1976-5-30 2618 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1199106  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1945-7-4 17512 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC57166  Phacelia mutabilis Overton, Butler 1979-7-26 9971 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC99429  Phacelia procera K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 78 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC76574  Philadelphus lewisii Alice Eastwood 1921-7-21 10671 Humboldt Van Duzer River, on the road. Comment
  RSA0046935  Philadelphus lewisii Joseph P. Tracy 1926-6-27 7696 Humboldt Horse Mountain. 1067 Comment
  CAS-BOT-BC253587  Phleum alpinum Joseph P. Tracy 1932-7-10 10388 Humboldt At Corral Prairie, Trinity Summit, Klamath Mountains 1524 Comment
  HSC58654  Phleum alpinum G. L. Clifton, Griswold 1979-7-31 11726 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC250883  Phleum pratense Doris K. Kildale 1926-6-27 2202 Humboldt Laribee Valley 701 Comment
  RSA44530  Phleum pratense Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  HSC102017  Phlox adsurgens M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 918 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC24107  Phlox adsurgens J. O. Sawyer 1970-6-27 2305 Humboldt Site 318. 1494 Comment
  JEPS71120  Phlox gracilis Joseph P. Tracy 1930-5-4 8691 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  HSC81777  Phoenicaulis cheiranthoides Thomas W. Nelson, James Nelson 1980-6-10 5403 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  HSC62753  Phyllospadix scouleri J. M. DiTomaso 1979-4-21 900 Humboldt Elks Head near Trinidad Comment
  CAS-BOT-BC140582  Physocarpus capitatus Carl B. Wolf 1927-8-30 1227 Humboldt 2 mi. s. of Petrolia on the [Matole] Mattole River near point where road crosses river Comment
  HSC45890  Picea sitchensis J. P. Smith 1971-10-6 4969 Humboldt End of Murray Rd. in McKinleyville, Bulk Collection 155 Comment
  RSA23  Picea sitchensis E. R. Johnson 1928-8-26 1146 Humboldt Arcata. Comment
  SD51259  Picea sitchensis Darley F. Howe 1961-8-1 Humboldt 3 miles north of Arcata on Highway #101 Comment
  HSC1482  Pinus contorta S. J. Hawks 1965-3-12 5 Humboldt 0.25 mi. W of Fairhaven Comment
  HSC31517  Pinus contorta Steve Selva, Roger Jensen 1974-8-28 92 Humboldt Approx. 5 mi. S of Arcata on the Samoa Peninsula Comment
  CAS-BOT-BC78978  Pinus muricata William R. Dudley 1899-6-28 s.n. Humboldt the Humboldt Bay [peninsula] Peninsula opposite Eureka (near sea-level) Comment
  UCR143016  Pinus muricata Robert M. Specht 1977-11-20 1190 Humboldt North Coast, [near Candy Mtn. SE of Patrick's Point] vicinity of Hwy 101 and Georgia-Pacific's A-line road 183 Comment
  JEPS48196  Pinus ponderosa W. L. Jepson 1902-6-18 1876 Humboldt Cummings to Harris Blue Rock Ridge 1219 Comment
  UC275575  Piperia candida Joseph P. Tracy 1923-6-19 6297 Humboldt near Kings Peak; Northern Coast Ranges, Wilder Ridge 609 Comment
  CAS-BOT-BC137277  Piperia elegans Mrs. H. C. Cantelow 1940-7-6 4062 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  RSA249357  Piperia transversa J. D. Ackerman 1973-8-23 116 Humboldt 2 miles north of Manila Comment
  HSC104332  Piperia transversa James Regan, Humboldt Redwood Co., LLC 2008-7-18 28 Humboldt Happy Valley, Bear River 579 Comment
  HSC45213  Pityopus californicus R. York 1978-7-15 Humboldt Road to Brush Mt., China Timber Sale. Bulk Collection 139 1067 Comment
  UC1222225  Plagiobothrys bracteatus Joseph P. Tracy 1942-6-15 17139 Humboldt in mddy stream or mud South Fork of Eel River, Miranda Comment
  UC668231  Plagiobothrys reticulatus Joseph P. Tracy 1938-6-17 15963 Humboldt s of point Cape Mendocino 3 Comment
  JEPS60980  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1909-6-6 2988 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS60990  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1912-6-9 3680 Humboldt Alton Northern Coast Region 30 Comment
  JEPS60976  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-30 4486 Humboldt Hydesville 60 Comment
  UC1222198  Plagiobothrys scouleri Joseph P. Tracy 1948-8-7 18084 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1239616  Plagiobothrys tenellus Joseph P. Tracy 1932-6-26 10267 Humboldt Valley of South Yager Creek 762 Comment
  UC1222196  Plagiobothrys trachycarpus Joseph P. Tracy 1948-5-31 17987 Humboldt Robertson's Ranch halfway between Garberville and Harris; Robertson's Ranch 609 Comment
  HSC38396  Plantago erecta J. D. Ackerman 1975-6-10 459 Humboldt 1 mi. N of Samoa Blvd. and Samoa Bridge Rd., S of Manila near RR tracks, along Humboldt Bay Comment
  HSC16843  Plantago lanceolata N. R. Waite 1965-5-19 51 Humboldt W edge of Humboldt State University campus. Comment
  HSC37567  Plantago maritima J. D. Ackerman 1975-6-10 464 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  RSA54131  Plantago patagonica H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  HSC16832  Plantago subnuda Norman H. Moe 1962-5-17 Humboldt Lanphere's Place, next to Mad River Slough Comment
  UC1196133  Plantago subnuda J. P. Tracy 1901-6-30 1212 Humboldt immediate vicinity Eureka 0 Comment
  BLMAR322  Plantago subnuda Jennifer Wheeler 2002-8-9 322 Humboldt Lost Coast Headland, Brackish creek edge of south side Guthrie creek 3 Comment
  HSC96482  Platanthera dilatata var. leucostachys Gordon Leppig 1997-6-19 443 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC666987  Platanthera sparsiflora Joseph P. Tracy 1932-7-17 10673 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  UC1196297  Platystemon californicus H. E. Parks and Joseph P. Tracy 1930-5-25 8718 Humboldt Larrabee Valley; Northern Coast Ranges, Larrabee Valley 670 Comment
  CDA24588  Platystemon californicus E. Cohen 2002-4-15 21 Humboldt Eureka. Comment
  RSA256718  Platystemon californicus var. californicus John S. Palmer 1975-5-24 370 Humboldt Samoa Dunes; dunes off Samoa Blvd. across from the boat landing Comment
  JEPS4808  Plectritis brachystemon Joseph P. Tracy 1930-6-8 8734 Humboldt Kneeland Prairie 762 Comment
  UC602504  Plectritis brachystemon Joseph P. Tracy 1932-6-26 10255 Humboldt South Yager Creek 762 Comment
  CHSC10124  Plectritis congesta J. W. Johnson 1962-4-19 1273 Humboldt Miller Farm, Samoa Peninsula. Arcata. Comment
  HSC33743  Plectritis congesta A. Montalvo 1975-5-24 279 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  BLMAR628  Plectritis congesta subsp. brachystemon Jennifer Wheeler 2011-6-15 628 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  HSC21693  Plectritis congesta subsp. brachystemon R. T. Forester 1963-4-23 21 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC77949  Plectritis congesta subsp. brachystemon Jimerson, Imper 1982-5-17 1439 Humboldt Near Ashfield Ridge. 822 Comment
  RSA178587  Plectritis congesta var. congesta Joseph P. Tracy 1950-5-6 18639 Humboldt At my cabin. Trinity River Valley, at Willow Creek. Comment
  HSC76591  Pleuricospora fimbriolata Teresa Prendusi 1981-7-7 140 Humboldt Near Slate Creek Butte. 1158 Comment
  UC1197753  Pleuricospora fimbriolata Stuart K. Harris 1942-6-17 7035 Humboldt Chalk Mountain 762 Comment
  JEPS109805  Pleuropogon refractus Dean W. Taylor 2004-6-24 19141 Humboldt head of Madden Creek, Ammon Ridge, seepage area along logging spur road arterial to Forest Road 5N81 1432 Comment
  UC1145106  Pleuropogon refractus Joseph P. Tracy 1950-7-2 18961 Humboldt 6 mi. n.e. Hawkins Bar (at Fern Spring, Happy Camp Mt..); Trinity Summit Range, Happy Camp Mt., Fern Spring 1280 Comment
  JEPS72921  Poa annua Lincoln Constance 1934-6-19 918 Humboldt near summit Grasshopper Peak; Bull Creek Region 914 Comment
  SEINET200845  Poa annua J. P. Tracy 1914-7-5 4548 Humboldt Bald Mtn between High Prairie and Snow Camp 1219 Comment
  UC1145113  Poa annua Joseph P. Tracy 1937-5-17 15294 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC1607848  Poa annua Harold E. Parks June 1933 4317 Humboldt Spruce Cove Trinidad Comment
  HSC40309  Poa bolanderi Thomas W. Nelson, Jane P. Nelson 1976-6-22 2846 Humboldt Along Rd. to Goat Hill. 1646 Comment
  UC525629  Poa bolanderi Joseph P. Tracy Jul 16 1930-Jul 19 1930 8902 Humboldt McKay Camp South Fork Mt; Northern Coast Ranges 1676 Comment
  SEINET200569 Image available Poa bulbosa Joseph P. Tracy 1942-2-6 17104 Humboldt Valley of South Yager Creek 762 Comment
  HSC10821  Poa confinis Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  UC1132657  Poa douglasii H. S. Yates 1936-6-18 5725 Humboldt near mouth Little River; Eureka Quadrangle Comment
  UC1145142  Poa douglasii Joseph P. Tracy 1917-5-30 4799 Humboldt at Little River Ocean Beach; Northern Coast Region Comment
  UC525628  Poa howellii Joseph P. Tracy 1929-7-4 8619 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  UC1103185  Poa kelloggii J. P. Tracy 1901-6-10 11321 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC254281  Poa macrantha H. E. Parks 1934-5-1 4805 Humboldt Little River Lagoon Comment
  HSC38923  Poa macrantha Linda M. Barker 1976-5-13 1491 Humboldt 3 mi. W of Arcata. Comment
  HSC10770  Poa pratensis R. D. Zortman 1963-5-5 32 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC40338  Poa pratensis Linda M. Barker 1976-6-1 1567 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC39232  Poa secunda subsp. secunda D. E. Anderson, J. P. Smith 1971-6-18 - 1081 Humboldt Horse Mtn. Comment
  HSC98669  Poa secunda subsp. secunda Cara Witte 2008-7-2 813 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  UC525663  Poa secunda subsp. secunda Joseph P. Tracy 1933-7-26 12911 Humboldt Grouse Mt; North Coast Ranges 1524 Comment
  CDA36977  Polycarpon tetraphyllum R. Robison Humboldt Humboldt Lagoons State Park, south of Stone Lagoon day use parking area. 0 Comment
  JEPS51323  Polygonum aviculare subsp. aviculare Lincoln Constance 1934-6-12 860 Humboldt Bull Cr. road and n. bank of river; South Fork Eel River, Bull Creek Region Comment
  RSA144208  Polygonum coccineum Peter H. Raven 1961-8-22 16575 Humboldt Chileno Valley Comment
  POM89531  Polygonum douglasii Joseph P. Tracy 1919-9-18 s.n. Humboldt Trinity Summit Comment
  UC1541405  Polygonum douglasii subsp. spergulariiforme H. E. Parks and J. P. Tracy 1930-9-15 767 Humboldt Kneeland Bald Hills Comment
  HSC98067  Polygonum douglasii var. douglasii Cara Witte 2007-7-11 508 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  HSC17511  Polygonum paronychia Jerry Parker 1968-11-22 245 Humboldt Mckinleyville Beach, Foot of Murray Rd. Comment
  SD117464  Polygonum paronychia Robert F. Thorne 1974-7-29 45080 Humboldt Samoa Dunes Comment
  UC902112  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1949-8-11 18480 Humboldt 2-6 mi s Grouse Mt.; Kinsey Ridge 1402 Comment
  UCR246784  Polygonum polystachyum B. Villegas, Bruce Bryan 2009-10-6 s.n. Humboldt Central Coast, near Trinidad, Patricks Point Drive at Seawood Drive, east of Hwy 101 91 Comment
Read comments
Jan 27 2015
  RSA279504  Polygonum polystachyum Thomas W. Nelson 1978-10-10 4555 Humboldt Growing on Hwy 101 right of way just N of Humboldt State University exit, 1.5 miles. Comment
  SEINET3404068 Image available Polygonum spergulariiforme Joseph P. Tracy 1921-10-2 5966 Humboldt Kneeland Prairie Comment
  CAS-BOT-BC421004  Polygonum spergulariiforme Doris K. Kildale 1928-6-24 5296 Humboldt Entrance to Horse Mountain 853 Comment
  HSC45418  Polygonum spergulariiforme Thomas W. Nelson, Jane P. Nelson 1977-8-6 3720 Humboldt Ridge between Bear and Blanket Creeks Comment
  CAS-BOT-BC72040  Polypodium calirhiza Alice Eastwood 1907-4-21 5 Humboldt Trinidad Comment
  HSC39942  Polypodium glycyrrhiza Linda M. Barker 1976-3-11 1328 Humboldt 3 mi. W of Arcata Comment
  HSC95876  Polypodium glycyrrhiza Will Ferrand 2002-5-7 47 Humboldt 9 mi. E of the intersection of West End Rd. and Warren Creek Rd. 67 Comment
  CAS-BOT-BC76839  Polypodium glycyrrhiza M. S. Taylor; L. Ahart; J. Jokerst 1982-1-17 5215 Humboldt Vicinity of mouth of Flag Canyon. On top of North Table Mt., ca. 8 mi. N of Oroville. 373 Comment
  CAS-BOT-BC76845  Polypodium glycyrrhiza Doris K. Kildale 1926-12-19 2876 Humboldt Briceland Bridge 1/2 mi. west of Garberville. Comment
  HSC1137  Polypodium glycyrrhiza J. W. Johnson 1962-4-2 1421 Humboldt Lanphere lane, near the swamp, Samoa Peninsula, Arcata Comment
  RSA24197  Polypodium glycyrrhiza C. B. Wolf 1941-3-1 9976 Humboldt 4 mi NE of Strongs Station (Van Duzen River) on Rd. to Yager 152 Comment
  UC1189555  Polypodium glycyrrhiza Rolla M. and Alice F. Tryon 1961-11-22 5560 Humboldt nw of Weott; s fork Eel River Comment
  UC955491  Polypodium glycyrrhiza Mrs. Carlotta C. Hall 1924-8-9 234 Humboldt Wilder Ranch near Carlotta 91 Comment
  HSC1131  Polypodium scouleri R. E. Hafenfeld 1965-5-9 62 Humboldt 0.25 mi. N Squashan Cr. on Gold Bluff Beach Rd. Comment
  HSC77900  Polypodium scouleri L. P. Janeway, Paul Wilson 1984-5-7 763 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  RSA129382  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile NE of Samoa 3 Comment
  HSC10832  Polypogon maritimus D. E. Anderson 1965-9-5 4077 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC45224  Polypogon monspeliensis M. Alcasas 1978-5-27 106 Humboldt On access road to Eel River Sawmills, 0.5 mi. from Hwy. 101 30 Comment
  POM295444  Polypogon monspeliensis Lyman Benson 1929-7-16 1825 Humboldt Dyerville Ditch. Comment
  UC1100381  Polypogon monspeliensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1176 Humboldt salt marshes around Fields Landing; around Fields Landing Comment
  UC1714513  Polypogon monspeliensis Joseph P. Tracy 1916-5-31 4692 Humboldt along Eel River from South Fork to Scotia Holmes Flat; Northern Coast Ranges, along Eel River 60 Comment
  JEPS24330  Polystichum californicum W. L. Jepson 1922-9-10 9460 Humboldt Garberville Comment
  UC503068  Polystichum imbricans subsp. imbricans Joseph P. Tracy Jul 16 1930-Jul 19 1930 9089 Humboldt near McKay Camp S. Fork Mt.; Northern Coast Ranges 1676 Comment
  CHSC23905  Polystichum munitum Mark Johnson 1974-4-28 28 Humboldt Adjacent to Lady Bird Johnson Grove, 5 mi ne of Orick. 228 Comment
  HSC13039  Polystichum munitum D. Santana, C. Kline Oct 1970 24 Humboldt HSC Campus Comment
  SBBG307  Polystichum munitum H. and M. Dearing 1939-5-27 3455 Humboldt Patrick's Point Comment
  CAS-BOT-BC102908  Populus trichocarpa Doris K. Kildale; L. B. Kildale 1930-4-13 9571 Humboldt Bridgeville 289 Comment
  UC297845  Potamogeton foliosus H. E. Parks 1923-5-30 1758 Humboldt Eureka Comment
  UC1103514  Potamogeton foliosus Joseph P. Tracy 1923-5-30 6247 Humboldt pond at mouth of Little River; Northern Coast Ranges 1 Comment
  CAS-BOT-BC454089  Potamogeton pusillus subsp. tenuissimus William Anderson 1964-8-4 s.n. Humboldt Shore Acres. McKinleyville Comment
  HSC18720  Potentilla anserina subsp. pacifica Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  HSC46968  Potentilla anserina subsp. pacifica J. P. Smith, Thomas W. Nelson 1977-6-30 9212 Humboldt Samoa Peninsula just E of the drag strip. Comment
  UCD113696  Potentilla anserina subsp. pacifica Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  HSC75470  Potentilla gracilis var. fastigiata J. O. Sawyer 1980-7-18 3617 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC15481  Prosartes smithii K. P. St. John 1965-5-5 12 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  SEINET12054299  Prosartes smithii Unknown 1936-1 13353 Humboldt near Scotia Comment
  HSC74736  Prunella vulgaris Gail Newton 1981-7-24 2305 Humboldt Near Chaparral Mtn. 1433 Comment
  HSC328  Prunella vulgaris J. Wendell Howe Humboldt Y Camp, Redway, Rocky Beach Comment
  SEINET13947097 Image available Prunella vulgaris W. J. Ferlatte, B. D. Rogers 1966-1 2083 Humboldt 1 mi E of Forest Glen; 2400 ft alt., T29E, R8E, SEC19 732 Comment
  HSC44534  Prunella vulgaris subsp. lanceolata Brad Klipfel 1973-7-1 142 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC22530  Prunella vulgaris subsp. lanceolata Jerry Parker 1968-9-23 68 Humboldt 1/4 mi. S of Vista Point Comment
  JEPS62494  Prunella vulgaris var. lanceolata Lincoln Constance 1934-5-24 641 Humboldt South Fork Eel River Bull Creek Region; , Bull Creek Region 121 Comment
  POM283387  Prunella vulgaris var. lanceolata Lyman Benson 1928-7-12 404 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  RSA430228  Prunella vulgaris var. lanceolata G. F. Orr 1963-8-15 s.n. Humboldt Patrick Point State Park, near Trinidad Comment
  UC1321006  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-19 627 Humboldt Eagle Point on Eel River (s of Meyer's Flat) Comment
  UC1402062  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-19 627 -53 Humboldt Comment
  HSC56106  Prunus emarginata G. L. Clifton 1979-7-31 11856 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  JEPS44945  Prunus emarginata Joseph P. Tracy 1924-5-25 6685 Humboldt on Big Lagoon Prairie, Big Lagoon Big Lagoon Prairie; Northern Coast Region, Big Lagoon, Big Lagoon Prairie 6 Comment
  POM89158  Prunus emarginata Joseph P. Tracy 1920-11-7 5410 Humboldt Around Humboldt Bay. Mad River at Lindsey Creek. 30 Comment
  HSC98967  Prunus emarginata var. emarginata Cara Witte 2007-9-3 641 Humboldt Forest Service Road 5N10. 1/4 mile east of intersection with National Forest 1. 1415 Comment
  RSA454167  Prunus subcordata Anstruther Davidson 1927-05 s.n. Humboldt [Unspecified] Comment
  JEPS20480  Pseudognaphalium californicum Joseph P. Tracy 1937-7-11 15415 Humboldt vicinity of Garberville 121 Comment
  CAS-BOT-BC357270  Pseudognaphalium microcephalum Hubert O. Jenkins 1943-8-1 s.n. Humboldt In dry rocky bed of Eel River, Richardson Grove Comment
  SD148240  Pseudognaphalium stramineum G. K. Helmkamp, E. A. Helmkamp 2001-7-8 7013 Humboldt Samoa Peninsula, 2.6 miles south of California Highway 255, bridge across Humboldt Bay. 14 Comment
  BLMAR704  Pseudognaphalium stramineum Jennifer Anthony-Wheeler 1994-9-8 704 Humboldt Samoa dunes, growing atop a knoll/dune with I the Samoa Pen. Rare plant area 15 Comment
  UC1223116  Pseudognaphalium stramineum Joseph P. Tracy 1950-7-15 19044 Humboldt e side Trinity River 1 mi n of mouth of Willow Creek; Trinity River Comment
  UC582516  Pseudognaphalium thermale Joseph P. Tracy 1935-7-31 14388 Humboldt Salmon Summit 1767 Comment
  UC1173655  Pseudognaphalium thermale Joseph P. Tracy 1939-8-16 16424 Humboldt Friday Ridge Grouse Mountain, Friday Ridge (brushy slopes) 1219 Comment
  CAS-BOT-BC80122  Pseudotsuga menziesii Carl B. Wolf 1930-10-29 1785 Humboldt Old Coast Road 7 miles so. of Honeydew Post Office 304 Comment
  UC484076  Pseudotsuga menziesii Carl B. Wolf 1930-10-29 1785 Humboldt Old Coast Road 7 mi s Honeydew P.O. 304 Comment
  UC165834  Psilocarphus tenellus J. P. Tracy 1909-5-23 2971 Humboldt immediate vicinity Eureka 0 Comment
  UC582501  Psilocarphus tenellus Joseph P. Tracy 1927-7-4 8236 Humboldt Iaqua 609 Comment
  CAS-BOT-BC361930  Psilocarphus tenellus M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale on road to Garberville Comment
  CAS-BOT-BC72557  Pteridium aquilinum Doris Kildale; L. B. Kildale 1930-9-9 10399 Humboldt Bald Mt. 914 Comment
  HSC74314  Pteridium aquilinum var. pubescens M. A. Baker 1980-7-20 3050 Humboldt Near Bell Swamps 1463 Comment
  HSC41289  Pteridium aquilinum var. pubescens Brad Klipfel 1974-7-27 483 Humboldt Horse Mtn. in draw to the N of the towers Comment
  UC1197761  Pterospora andromedea Joseph P. Tracy 1947-7-9 17857 Humboldt Horse Mt. 1432 Comment
  OBI22190  Puccinellia nutkaensis Joseph P. Tracy 1950-6-17 18834 Humboldt Eureka Comment
  UCD92960  Puccinellia pumila Joseph P. Tracy 1938-7-15 16073 Humboldt Mouth of Eel River. Comment
  HSC63482  Pyrola asarifolia subsp. asarifolia M. A. Baker 1979-6-6 362 Humboldt 1.5 km N of Post Office on Patrick's Point Drive, Trinidad Comment
  HSC99085  Pyrola dentata Cara Witte 2007-6-26 355 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  CAS-BOT-BC466039  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Sumimt near Corral Prairie 1584 Comment
  HSC100474  Pyrola picta Carl C. Marshall Jun 1886 294 Humboldt Pine Creek. Comment
  UC56314  Pyrola picta Joseph Burtt Davy 1899-6-19 5644 Humboldt Hoopa Mountain Comment
  CAS-BOT-BC62627  Quercus chrysolepis Doris K. Kildale 1926-12-19 2879 Humboldt Briceland Bridge, 1/2 mile west of Garberville 114 Comment
  HSC99031  Quercus chrysolepis Cara Witte 2008-7-3 827 Humboldt Friday Ridge Road/ 6N08. Approximately 1 mile north of intersection with National Forest 1. 1567 Comment
  RSA178558  Quercus chrysolepis Joseph P. Tracy 1950-8-4 19256 Humboldt Summit of ridge northeast of the lookout station, Grasshopper Peak (in Bull Creek State Park) at head of Canoe Creek. Comment
  RSA47117  Quercus chrysolepis var. nana Doris K. Kildale 1926-5-16 1842 Humboldt Horse Mt. Road. 793 Comment
  CAS-BOT-BC94307  Quercus garryana C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1541341  Quercus garryana H. E. Parks, J. P. Tracy 1930-9-15 764 Humboldt Kneeland Prairie Bald Hills Comment
  UC419047  Quercus garryana H. E. Parks, J. P. Tracy 1930-9-15 764 Humboldt Bald Hills Kneeland Comment
  BLMAR208  Quercus garryana subsp. breweri Jennifer Anthony-Wheeler 1996-7-9 208 Humboldt Pilot ridge., growing as main hardwood component of stand 1280 Comment
  CAS-BOT-BC62728  Quercus garryana var. breweri Doris K. Kildale 1926-8-22 2573 Humboldt Bald hills, near Tomlinson's 716 Comment
  UCD46155  Quercus garryana var. garryana W. L. Colwell 1957-9-4 53 Humboldt Near Board Camp Mountain, 18 miles southeast of Korbal, near Six Rivers National Forest, Humboldt County. 1371 Comment
  CAS-BOT-BC105166  Quercus kelloggii Doris K. Kildale 1928-7-1 5312 Humboldt Klamath River at N of Bluff Creek Comment
  OBI14233  Quercus sadleriana Carl B. Wolf 1937-8-13 9261 Humboldt North Coast Range, 12 mi E of Hoopa Valley on New road towards Trinity summit 1676 Comment
  UC1196511  Quercus sadleriana Joseph P. Tracy 1947-7-5 17798 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC104536  Quercus vacciniifolia Doris K. Kildale 1925-8-18 1220 Humboldt Trinity Summit 1828 Comment
  HSC102068  Quercus vacciniifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 970 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC41271  Quercus vacciniifolia Brad Klipfel 1974-6-25 417 Humboldt Horse Mtn. Comment
  HSC55598  Quercus vacciniifolia Overton, Butler 1979-7-23 9411 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  SEINET10477739  Quercus vacciniifolia Jone 1985-6-6 JONE 113 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy 299 going to horse mt. Found At intersection of titlow rd. And the road to horse mt. Summit. Pinus, arbutus, Quercus chrysolepis, quercus vaccinifolia habitat 1143 Comment
  JEPS55034  Ranunculus alismifolius var. alismellus W. L. Jepson July, 1902 2106 Humboldt Trinity Summit 2133 Comment
  UC1103018  Ranunculus arvensis Joseph P. Tracy 1940-5-17 16554 Humboldt Buck Mountain; lower foothills of nw slope 762 Comment
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Jun 18 2011
  HSC18135  Ranunculus californicus var. cuneatus A. H. Teshima 1963-2-15 2 Humboldt Moonstone Beach 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
  HSC18153  Ranunculus muricatus T. W. Beck 1963-5-10 50 Humboldt Camp Bauer, Korbel Comment
  JEPS55087  Ranunculus occidentalis Joseph P. Tracy 1918-5-28 4948 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1196212  Ranunculus occidentalis J. P. Tracy 1901-5-5 1066 Humboldt Immediate vicinity of Eureka 0 Comment
  RSA523409  Ranunculus occidentalis G. H. True 1936-5-11 466 Humboldt E slope of Elk Ridge, 12 miles W of Miranda. 457 Comment
  SEINET200319  Ranunculus occidentalis J. T. Gregory 381 Humboldt Grouse Mtn near 'Clear Lake 1524 Comment
  UC1196234  Ranunculus occidentalis Joseph P. Tracy 1914-5-3 4417 Humboldt corner Harris St. and Broadway (top of Bluff); Northern Coast Region, Eureka 0 Comment
  POM126167  Ranunculus orthorhynchus Joseph P. Tracy 1922-5-21 6050 Humboldt Fieldbrook. 61 Comment
Read comments
Oct 27 2009
  UC1196256  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1912-6-2 3641 Humboldt Eureka Northern Coast Region 0 Comment
  UC1196243  Ranunculus orthorhynchus var. orthorhynchus J. P. Tracy Jun 19 1898-May 26 1899 230 Humboldt Ricks Prairie Immediate vicinity of Eureka (edge of pond) 0 Comment
  CDA3495  Ranunculus parviflorus B. F. Kemp 1958-5-5 396 -58 Humboldt Loleta. 0 Comment
  UCD97071  Ranunculus parviflorus John Thomas Howell 1954-4-25 29153 Humboldt Arcata. Comment
  UC162817  Ranunculus pusillus Joseph P. Tracy 1903-5-24 1912 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  HSC18181  Ranunculus repens J. C. Reppas 1963-4-11 36 Humboldt 820 Fickle Hill Rd. Comment
  POM118708  Ranunculus repens Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC39793  Raphanus sativus Peter Sorensen 1976-6-8 Humboldt N Spit Comment
  JEPS41986  Rhamnus californica subsp. californica W. L. Jepson 1936-8-12 17884 Humboldt Phillipsville South Fork Eel River Comment
  RSA202161  Rhamnus californica subsp. occidentalis W. L. Jepson 1902-1 1977 Humboldt Three Creeks to Willow Creek. 762 Comment
  RSA7816  Rhamnus purshiana Doris K. Kildale 1928-7-1 5304 Humboldt French camp on Orick-Martins ferry road 610 Comment
  UC615053  Rhamnus purshiana Beryl O. Schreiber 1934-6-5 1141 Humboldt Gray's Resort Redwood Creek Comment
  HSC44734  Rhododendron columbianum Maralyn O'Meara 1971-10-25 53 Humboldt S side of Big Lagoon Comment
  RSA69211  Rhododendron macrophyllum A. D. Tenney 1925-04 6020 Humboldt Arcata. Comment
  UC1225907  Rhododendron occidentale Joseph P. Tracy 1947-7-9 17837 Humboldt Horse Mountain 1432 Comment
  HSC100495  Ribes Carl C. Marshall Apr 1887 395 Humboldt Hoopa Valley. Comment
  CAS-BOT-BC433133  Ribes Doris K. Kildale; L. B. Kildale 1930-4-27 9565 Humboldt Prairie Creek near Orick Comment
  HSC103188  Ribes binominatum Jade Paget-Seekins 2010-7-6 41 Humboldt On the western shore of Red Cap Lake, mostly to the right of the rocky slope. (Accessible via a few hour hike from the High Point trailhead outside of Forks of Salmon.) 1754 Comment
  HSC103198  Ribes binominatum Jade Paget-Seekins 2010-7-6 39 Humboldt On the western shore of Red Cap Lake, to the left of the rocky slope. (Accessible via a few hour hike from the High Point trailhead outside of Forks of Salmon.) 1754 Comment
  HSC56093  Ribes binominatum G. L. Clifton, Griswold 1979-7-31 11794 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  RSA273318  Ribes bracteosum M. A. Baker 1977-4-23 174 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  CAS-BOT-BC176804  Ribes laxiflorum Harley P. Chandler 1901-5-1 1202 Humboldt Humboldt Bay 30 Comment
  HSC97311  Ribes laxiflorum M. Mesler 2007-3-23 744 Humboldt Near Trinidad, trail from Mill Creek to Elk Head, along creek near beach. 23 Comment
  UC1198926  Ribes lobbii Joseph P. Tracy 1932-7-17 10666 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  UC673202  Ribes lobbii Lincoln Constance, Reed C. Rollins 1942-5-11 2864 Humboldt 8 mi e Blue Lake (near summit); North Coast Ranges Comment
  HSC100492  Ribes lobbii Carl C. Marshall Jul 1886 264 Humboldt Coyote Camp, Lyon's Range. Comment
  HSC74200  Ribes marshallii M. A. Baker 1980-7-19 3033 Humboldt Near Bret Hole. 1814 Comment
  LA205539  Ribes marshallii Joseph P. Tracy; 1932-7-15 10592 Humboldt Klamath Mountains, Trinity Summit. ridges E of Corral Prairie 1828 Comment
  CAS-BOT-BC206032  Ribes menziesii Harold E. Parks 1933-4-1 4402 Humboldt McNeils Creek, vicinity of Trinidad Comment
  HSC20314  Ribes menziesii E. W. Styskel 1963-3-3 3 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  JEPS43484  Ribes menziesii Lincoln Constance 1934-6-3 801 Humboldt Dyerville, foot of bank along n side of Redwood Highway Bull Creek Region, South Fork Eel River Comment
  SJSU7838  Ribes menziesii R. D. Spadoni 1965-3-26 108 Humboldt Trinidad Comment
  UC1198931  Ribes menziesii J. P. Tracy 1905-3-26 2153 Humboldt immediate vicinity Eureka 0 Comment
  HSC102092  Ribes nevadense M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 995 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC53912  Ribes nevadense Griswold, Butler 1979-7-11 6922 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC56051  Ribes nevadense G. L. Clifton, Griswold 1979-7-31 11652 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UCD102415  Ribes nevadense Hemphill, D. V. 1972-10-8 7033 Humboldt Near Bennett Peak and Hyampom. 1219 Comment
  HSC103222  Ribes roezlii var. cruentum Jade Paget-Seekins 2010-3-18 5 Humboldt Redwood Valley (off 299) Bair Road /Hoopa Road. 609 Comment
  HSC103225  Ribes roezlii var. cruentum Jade Paget-Seekins 2010-6-23 23 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  CAS-BOT-BC211980  Ribes sanguineum J. H. Thomas 1949-6-13 914 Humboldt Along trail between Le Perron Flat and Whiteys Peak, east of town of Orleans, Six Rivers National Forest 1371 Comment
  CAS-BOT-BC212520  Ribes sanguineum Joseph P. Tracy 1949-4-10 18281 Humboldt Redwood Creek at Berry's 365 Comment
  LA205509  Ribes sanguineum Carl Epling; William Robison 1935-7-22 sn Humboldt Patrick's Point Comment
  UCD102487  Ribes sanguineum G. F. Hrusa 1992-5-5 10436 Humboldt Cedar Camp Rd. approximately 10 m. west of Orleans. Mile 9.0. Comment
  UCD22651  Ribes sanguineum Karen Seaman 1983-5-1 14 Humboldt On Kneeland Road, 1 mile S.E. of Kneeland Airport on roadside. 701 Comment
  CAS-BOT-BC144685  Ribes sanguineum var. glutinosum Elmer I. Applegate 1923-9-12 3991 Humboldt Stone Lagoon, south of Orick Comment
  HSC40407  Ribes sanguineum var. glutinosum Linda M. Barker 1976-1-24 1311 Humboldt 3 mi. W of Arcata Comment
  UC1198909  Ribes sanguineum var. glutinosum Joseph P. Tracy 1948-9-26 18227 Humboldt 6 mi se Arcata (Fickle Hill) 609 Comment
  UC1215537  Ribes sanguineum var. glutinosum D. E. Anderson 1962-1-12 1907 Humboldt along road to Lanphere Ranch Comment
  UCR138884  Ribes sanguineum var. glutinosum E. Bower, S. Marubayashi, E. Perry 1997-5-10 52 Humboldt Titlow Hill Road, 0.5 mi past intersection with Hwy 299 762 Comment
  CAS-BOT-BC173988  Ribes viscosissimum Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  UC492213  Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  UC495731  Robinia pseudoacacia Joseph P. Tracy 1932-5-17 10076 Humboldt Willow Creek; Northern Coast Ranges, Trinity River Valley 152 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
  BLMAR82  Romanzoffia californica Jennifer Anthony-Wheeler 1994-6-2 82 Humboldt IAQUA, growing on moist, rocky cliff on logging rd 3/4mi off pvd rd 822 Comment
  HSC45604  Romanzoffia californica Diane L. Reed 1978-5-7 69 Humboldt E fork of Willow Creek, 34 mi. from US 101 on state Hwy. 299 Comment
  HSC100500  Romanzoffia sitchensis Carl C. Marshall Apr 1886 196 Humboldt Damp rocks, Jacoby Creek. Comment
  NY337230  Romanzoffia tracyi J. P. Tracy 1933-5-9 11008 Humboldt Vicinity of Trinidad 15.2 Comment
  SEINET3069103 Image available Romanzoffia tracyi J. P. Tracy, H. E. Parks 1933-5-9 11008 Humboldt Vicinity of Trinidad 20 Comment
  UC660024  Romanzoffia tracyi Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-18 2619 Humboldt ocean bluffs n. of Trinidad 30 Comment
  RSA44364  Rosa eglanteria H. M. Pollard 1946-8-27 s.n. Humboldt Near Boyce Creek. Orleans region. Comment
  HSC99447  Rosa gymnocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 97 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC19626  Rosa gymnocarpa W. R. Rogers 1965-5-15 61 Humboldt Camp Bauer 1/4 mi. Korbel Comment
  UC1927277  Rosa luciae Barbara Ertter with Tom Nelson and Dick Brummitt 2004-7-2 18404 Humboldt Eureka, at edge of 14th Street where road crosses large drainage (opposite 1404 14th St.) Comment
  HSC98782  Rosa nutkana Cara Witte 2008-6-27 770 Humboldt Approximately 1/2 mile north of White Oak Opening on National Forest 1. 1242 Comment
  RSA201872  Rosa nutkana Geo. Parrish, G. Parrish 1930-5-21 s.n. Humboldt Trinidad. Comment
  JEPS47247  Rosa nutkana var. nutkana W. L. Jepson 1936-8-17 17922 Humboldt 2 1/2 mi s Fields Landing (bordering marsh) Comment
  UC183614  Rosa nutkana var. nutkana Joseph P. Tracy 1912-10-20 3997 Humboldt Alton Northern Coast Region 30 Comment
  UC588191  Rosa nutkana var. nutkana H. E. and S. T. Parks June, 1937 24021 Humboldt Spruce Cove Trinidad Comment
  CAS-BOT-BC146885  Rosa rubiginosa Carl B. Wolf 1927-8-30 1229 Humboldt 2 mi. s. of Petrolia on Matole River near point where road crosses river Comment
  HSC100908  Rosa spithamea Carl C. Marshall Jun 1886 306 Humboldt Trail E of Hoopa. Comment
  CAS-BOT-BC156579  Rubus bifrons Henry M. Pollard 1948-8-9 s.n. Humboldt Near Orleans Comment
  HSC19650  Rubus leucodermis Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  HSC58030  Rubus leucodermis G. L. Clifton 1979-7-31 11850 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1193204  Rubus leucodermis P. Zinke 1950-8-4 152 Humboldt two mi w Harris Post Office; Quad. 29D3, w of Harris Post Office 853 Comment
  UC467839  Rubus leucodermis P. E. Goddard 1906-6 673 Humboldt Lasseck Pk. Lasseck Pk Comment
  UC467840  Rubus leucodermis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5423 Humboldt near Hubbards Station (nw California); near Hubbards Station Comment
  HSC19672  Rubus parviflorus R. I. Bonn 1965-5-9 47 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC57680  Rubus parviflorus G. L. Clifton, Griswold 1979-7-25 10886 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC58061  Rubus parviflorus G. L. Clifton, Griswold 1979-8-1 11937 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC79508  Rubus parviflorus Kenneth Clark 1980-4-18 589 Humboldt Shelter Cove. On lower alluvial terrace of Dead Man's Gulch 24 Comment
  SEINET4093648  Rubus parviflorus O. M. Clark 1932-1 707 Humboldt South Eureka. Comment
  UC535747  Rubus parviflorus Eleanor Armstrong 1934-7-3 1166 Humboldt Richardson Grove 121 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
  UCD150631  Rubus spectabilis Wayne Padgett 1974-5-25 65 Humboldt Two miles S of Patrick's Point State Park on coast road. Comment
  HSC55314  Rubus ursinus Griswold, Butler 1979-7-11 7024 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC89583  Rubus ursinus M. Roantree 1985-4-25 5 Humboldt E side of Trinidad Head. Comment
  HSC96508  Rubus ursinus Gordon Leppig 1999-4-15 1115 Humboldt Big Lagoon County Park Comment
  HSC96515  Rubus ursinus Gordon Leppig 1998-5-11 762 Humboldt Big Lagoon County Park. 3 Comment
  UC666164  Rubus ursinus S. W. Brown 1942-6-13 42011 Humboldt 10.1 mi n Fortuna (on U.S. Hwy 99); ; Fortuna, Humboldt Co. Comment
  UC1199269  Rudbeckia occidentalis Joseph P. Tracy 1932-7-20 10727 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  HSC17571  Rumex acetosella D. E. Anderson 1961-9-30 1836 Humboldt Comment
  CAS-BOT-BC421749  Rumex conglomeratus Malcom A. Nobs; S. Galen Smith 1949-8-9 1236 Humboldt On southern side of the town of Blue Lake Comment
  HSC34977  Rumex crassus Thomas W. Nelson 1974-9-13 1712 Humboldt King Salmon area Comment
  HSC62855  Rumex crassus J. M. DiTomaso 1979-5-20 1051 Humboldt Sand at Big Lagoon Park, 8 mi. N of Trinidad Comment
  UC672924  Rumex maritimus Harold E. Parks and Joseph P. Tracy 1934-10-13 11150 Humboldt Big Lagoon 6 Comment
  JEPS39873  Rumex occidentalis Milo S. Baker 1923-8-4 177 Humboldt s end Stone Lagoon Comment
  CAS-BOT-BC109293  Rumex paucifolius R. K. Gierisch; D. H. Esplin 1969-7-1 3538 Humboldt Six Rivers. Grouse Mountain. 1584 Comment
  HSC17620  Rumex pulcher David K. Smith 1968-10-26 40 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  UC1222605  Rupertia physodes Joseph P. Tracy 1951-7-26 19589 Humboldt extreme head Redwood Creek (n side of mountain); Board Camp Mountain 1541 Comment
  UCD92330  Rytidosperma R. Tofsrud 1946-11-1 33 Humboldt Humboldt County. Comment
  RSA301862  Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 17267 Humboldt [Unspecified] Comment
  UC1103532  Sagina apetala Joseph P. Tracy 1946-6-23 17598 Humboldt roadside near Dan McBride place Kneeland Prairie 762 Comment
  SEINET5337061  Sagina decumbens subsp. occidentalis J. Tracy 1905-4-30 2172 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay Comment
  JEPS79973  Sagina maxima subsp. crassicaulis Joseph P. Tracy 1940-5-18 16564 Humboldt Trinidad 15 Comment
  SEINET10937633  Salicornia virginica Mary Susan Taylor 1982-10-24 Taylor 5176 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UC490587  Salix Joseph P. Tracy 1932-4-17 9798 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  POM182024  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt McKay Meadow. Tinity summit. Klamath Mountains. 1524 Comment
  UC490573  Salix exigua Joseph P. Tracy 1932-7-31 10295 Humboldt mouth of Larrabee Creek Eel R.; Northern Coast Ranges 60 Comment
  HSC19946  Salix exigua var. hindsiana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 1332 Humboldt Trinity River, near bridge on Trinity Hwy. 152 Comment
  SBBG58913  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1336 Humboldt above Trinity River, 1 mi below bridge on Trinity Hwy 152 Comment
  UC481304  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 971 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  UC512028  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1330 Humboldt near bridge on Trinity Hwy. Trinity R. 152 Comment
  CAS-BOT-BC104104  Salix hindsiana Harold E. Parks 1931-5-14 0958 Humboldt Fernbridge, Eel River 10 Comment
  CAS-BOT-BC107676  Salix hookeriana John Johnson 1962-4-1 1187 Humboldt Lamphere Ranch, about 4 miles west of Arcata. Sand dune formation along beach Comment
  CAS-BOT-BC107735  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107740  Salix hookeriana Joseph P. Tracy 1931-8-23 9616 Humboldt Sand dunes, near Samoa 6 Comment
  JEPS38443  Salix hookeriana J. P. Tracy 1906-4-12 2401 Humboldt Immediate vicinity of Eureka 0 Comment
  LA208761  Salix hookeriana Harold E. Parks; 1931-3-24 914 Humboldt Fortuna, on banks of Eel River 10.0 Comment
  POM160840  Salix hookeriana Joseph P. Tracy 1925-10-11 7280 Humboldt Near Loren Frost place, on Kneeland Road. Near Kneeland Prairie. 610 Comment
  POM184871  Salix hookeriana H. E. Parks, Susan T. Parks 1932-4-10 1103 -a Humboldt Little River Lagoon. Trinidad. At sea level. 0 Comment
  POM219565  Salix hookeriana H. E. Parks 1931-3-24 915 -a Humboldt Trinidad. 90 Comment
  RSA5644  Salix hookeriana H. E. Parks 1931-5-28 1000 Humboldt Little River Lagoon. 0 Comment
  UC1196672  Salix hookeriana Joseph P. Tracy 1935-3-3 13717 Humboldt mouth of Mad R. 6 Comment
  UC1196675  Salix hookeriana Joseph P. Tracy 1931-3-26 9305 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  UC469110  Salix hookeriana Joseph P. Tracy 1931-8-23 9618 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC470434  Salix hookeriana Joseph P. Tracy 1931-10-18 9742 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  UC481334  Salix hookeriana Harold E. Parks Aug 1931 1057 Humboldt Bishop Pine Lodge Trinidad 150 Comment
  UC481346  Salix hookeriana Harold E. Parks 1931-5-12 952 Humboldt Samoa Humboldt Bay, Samoa Comment
  UC481390  Salix hookeriana Harold E. Parks 1931-3-24 915 Humboldt Trinidad 90 Comment
  UC506402  Salix hookeriana Joseph P. Tracy 1933-4-9 10969 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UCD111038  Salix hookeriana Linda M. Barker 1976-4-30 1415 Humboldt 3 miles west of Arcata. Comment
  UC1173603  Salix laevigata Joseph P. Tracy 1935-5-25 13886 Humboldt Dobbyn Creek 152 Comment
  RSA0030805  Salix lasiandra H. E. Parks, Joseph P. Tracy 1931-5-17 0966 Humboldt Willow Creek at Trinity River. 150 Comment
  UC490524  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-4-17 9797 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UC495617  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1931-10-30 10903 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  CAS-BOT-BC107576  Salix lasiolepis Joseph P. Tracy 1934-3-25 13166 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC107592  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1329 Humboldt In dry ravines on west slope of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  HSC20008  Salix lasiolepis J. P. Tracy 1933-4-2 10961 Humboldt Berry's Mt. on Trinity Hwy. E of Redwood Creek 762 Comment
  HSC20009  Salix lasiolepis J. P. Tracy 1932-10-8 10867 Humboldt Berry Mt. on Trinity Hwy. 762 Comment
  JEPS12922  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1933-3-19 11006 Humboldt near Bridgeville; Northern Coast Ranges 182 Comment
  JEPS12949  Salix lasiolepis Joseph P. Tracy 1932-3-6 9775 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS14751  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC1196659  Salix lasiolepis Joseph P. Tracy 1932-5-17 10078 Humboldt Willow Creek North Coast Ranges, Trinity River 152 Comment
  UC469418  Salix lasiolepis Joseph P. Tracy 1927-8-7 8306 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC469419  Salix lasiolepis Joseph P. Tracy 1929-3-16 8530 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC469435  Salix lasiolepis Joseph P. Tracy 1931-10-11 9718 Humboldt near mouth Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC504022  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1254 Humboldt 2 mi E of Redwood Highway ( Mad River at Engelhart gravel pit, above Blue Lake) Comment
  UC504031  Salix lasiolepis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1338 Humboldt near pond at Willow Creek (Graham Ranch) near junction with Trinity River Comment
  UC506374  Salix lasiolepis Joseph P. Tracy 1933-4-9 10964 Humboldt Bridgeville 228 Comment
  UC519347  Salix lasiolepis Joseph P. Tracy 1933-10-15 13092 Humboldt along S. Fork Eel R. near Miranda; North Coast Ranges, S. Fork Eel R. 91 Comment
  UCD111587  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 01321 Humboldt Redwood Creek, at Berry's, on Trinity Highway. 274 Comment
  CAS-BOT-BC107411  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-3-20 2907 Humboldt Stephens Grove on South Fork of Eel River 60 Comment
  RSA10910  Salix lasiolepis var. sandbergii Carleton R. Ball, Harold E. Parks, Joseph P. Tracy 1932-5-17 1324 Humboldt Berry's Mountain. E of Redwood Creek. On Trinity Hwy. 762 Comment
  SBBG29043  Salix lucida subsp. lasiandra H. E. Parks, J. P. Tracy 1931-5-17 966 Humboldt Willow Crk at Trinity River 150 Comment
  CAS-BOT-BC125614  Salix melanopsis Doris K. Kildale 1925-6-27 765 Humboldt Yager Creek - near mouth 30 Comment
  CAS-BOT-BC125629  Salix melanopsis Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 01252 Humboldt On floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  JEPS14848  Salix melanopsis Lincoln Constance 1934-5-27 688 Humboldt s end of Dyerville Bridge (S. Fork Eel River); Bull Creek Region, S. Fork Eel River 45 Comment
  LA208934  Salix melanopsis Harold E. Parks; 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  POM218957  Salix melanopsis H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy, 6km S of Alton. 20 Comment
  UC1196637  Salix melanopsis Joseph P. Tracy 1932-8-27 10746 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC212983  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt mouth of Yager Creek; Northern Coast Region, Yager Creek 30 Comment
  UC275492  Salix melanopsis Joseph P. Tracy 1925-7-26 7209 Humboldt near S. Fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC481266  Salix melanopsis Harold E. Parks 1931-5-28 1025 Humboldt Roosevelt Hwy. Bridge; Little River Lagoon Comment
  UC212993  Salix purpurea Joseph P. Tracy 1919-5-25 5137 Humboldt Ryan's Slough Northern Coast Ranges, Humboldt Bay, Ryan's Slough 15 Comment
  CAS-BOT-BC129130  Salix scouleriana Harold E. Parks 1931-5-20 994 Humboldt Blue Lake, Mad River 15 Comment
  CAS-BOT-BC129168  Salix scouleriana Joseph P. Tracy 1932-7-13 10507 Humboldt Open ground at Corral Prairie 1524 Comment
  HSC20075  Salix scouleriana J. P. Tracy 1932-7-17 10694 Humboldt Klamath Mtns., Trinity summit, Head of Devil's Hole 1829 Comment
  POM219539  Salix scouleriana H. E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge. 150 Comment
  UC1193085  Salix scouleriana G. W. Tourtillott 1950-8-30 29 Humboldt 1/4 mi. e. Belae Ranch; Quad. 29C4 457 Comment
  UC1196694  Salix scouleriana Joseph P. Tracy 1932-10-12 10876 Humboldt along S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R., Miranda 91 Comment
  UC1196700  Salix scouleriana Joseph P. Tracy 1912-2-25 3558 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC470446  Salix scouleriana Joseph P. Tracy 1931-11-14 9755 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC519354  Salix scouleriana Joseph P. Tracy 1933-7-11 12706 Humboldt Grouse Mt.; North Coast Ranges, Grouse Mt. 1524 Comment
  CAS-BOT-BC128961  Salix sitchensis Joseph P. Tracy 1932-7-18 10724 Humboldt Rocky exposed places, head of Brett Hole - Klamath Mountains 1828 Comment
  HSC96575  Salix sitchensis Gordon Leppig 2003-2-20 1805 Humboldt Eureka Slough, Cooper Gulch 5 Comment
  JEPS14763  Salix sitchensis Joseph P. Tracy 1932-8-27 10745 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  POM219562  Salix sitchensis H. E. Parks 1931-3-25 903 Humboldt Orick. Van Duzen River. 6 Comment
  UC481380  Salix sitchensis Harold E. Parks 1931-3-26 907 Humboldt on Van Duzen R. Alton; Van Duzen R., Blue Slide 15 Comment
  RSA21578  Sambucus caerulea C. B. Wolf 1937-9-8 9299 Humboldt North Coast Range, Bull Creek-Petrolia Road, Bull Creek, 6 miles west of Redwood Highway 183 Comment
  RSA21579  Sambucus caerulea C. B. Wolf 1937-9-8 9299 Humboldt North Coast Range, Bull Creek-Petrolia Road, Bull Creek, 6 miles west of Redwood Highway 183 Comment
  RSA24053  Sambucus callicarpa C. B. Wolf 1941-2-22 9918 Humboldt Along Redwood Highway 2.8 miles south of Patricks Point State Park 30 Comment
  SBBG7380  Sambucus nigra subsp. caerulea K. K. Muller 1954-6-20 627 Humboldt 3 mi S of Scotia Comment
  UC902070  Sambucus racemosa var. racemosa Joseph P. Tracy 1949-7-25 18399 Humboldt Trinidad 3 Comment
  HSC89430  Sanicula arctopoides P. A. Daly 1984-5-8 9 Humboldt Trinidad Head. 61 Comment
  HSC89551  Sanicula arctopoides Mike Roantree 1985-4-28 13 Humboldt N side of Trinidad Head, on coastal buff slope below trail Comment
  HSC95577  Sanicula arctopoides Andrea Pickart 2002-3-14 7 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  UC154131  Sanicula bipinnatifida Joseph P. Tracy 1909-8-1 3056 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1197105  Sanicula bipinnatifida Joseph P. Tracy 1926-5-9 7460 Humboldt Northorn Coast Ranges, Valley of South Yager Creek Valley of South Yager Creek; Northorn Coast Ranges, Valley of South Yager Creek 762 Comment
  HSC39448  Sanicula crassicaulis Linda M. Barker 1976-8-2 1669 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  UC642273  Sanicula graveolens Joseph P. Tracy 1932-7-12 10465 Humboldt Trinity Summit, Head of Brett Hole Brett Hole; Trinity Summit, Brett Hole 1828 Comment
  JEPS995  Sanicula laciniata Joseph P. Tracy 1925-3-29 6950 Humboldt Miranda, along South Fork of Eel River South Fork Eel River; Northern Coast Ranges, Miranda, South Fork Eel River 91 Comment
  CHSC60487  Sanicula tracyi Lisa D. Hoover 1992-6-16 Humboldt Six Rivers National Forest. East side of Whiting Ridge off Route 1 before 'Last Chance Ridge' approximately 27 miles off Hwy 299. 1267 Comment
  HSC68638  Sanicula tracyi Jacqueline Greenleaf 1980-5-25 86 Humboldt Near Dinsmores. 735 Comment
  HSC81660  Sanicula tracyi Thomas W. Nelson, Jane P. Nelson 1980-7-13 6064 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  UC647525  Sanicula tracyi Joseph P. Tracy 1939-5-14 16284 Humboldt Buck Mountain 914 Comment
  UC492224  Saxifraga californica Joseph P. Tracy 1927-4-10 7896 Humboldt near the South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC102082  Saxifraga ferruginea M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 984 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC709459  Saxifraga marshallii Joseph P. Tracy 1941-3-26 16834 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC902010  Saxifraga marshallii Joseph P. Tracy 1948-5-15 17978 Humboldt Willow Creek Canyon, along Trinity Highway at the East Fork Willow Creek Canyon 457 Comment
  OBI9752  Saxifraga mertensiana Carl B. Wolf 1941-3-2 9991 Humboldt N Coast Range, 2 mi S of Honeydew along Honeydew crk 152 Comment
  CAS-BOT-BC441187  Saxifraga mertensiana Alice Eastwood; John Thomas Howell 1937-6-24 4867 Humboldt 5 miles east of Berry Summit Comment
  CAS-BOT-BC111381  Schoenoplectus acutus var. occidentalis Carl B. Wolf 1927-8-22 771 Humboldt Big Lagoon Comment
  HSC90687  Schoenoplectus americanus Gail Newton 1982-5-31 3562 Humboldt Elk River Wildlife Area, Eureka Comment
  POM126085  Schoenoplectus maritimus Joseph P. Tracy 1924-9-28 6907 Humboldt Centerville, northern coast ranges 3 Comment
  CHSC92413  Schoenoplectus mucronatus Gordon Leppig 2004-9-1 2196 Humboldt Eel River at Holmes Flat. Gravel bar on east edge of river. UTM Zone 10, 420903E, 447244N. 400 Comment
  CAS-BOT-BC111702  Schoenoplectus pungens var. badius LeRoy Abrams; Rimo Bacigalupi 1922-6-25 8268 Humboldt Big Lagoon south of Orick Comment
  UC183668  Scirpus acutus var. occidentalis Joseph P. Tracy 1907-7-20 2595 Humboldt region about Humboldt Bay (near Samoa); Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC58790  Scirpus microcarpus G. L. Clifton 1979-7-31 11362 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC110927  Scirpus microcarpus Kenneth Clark 1980-4-18 601 Humboldt Point Delgada quad. In marsh area of upper meadow above Dead Man's Gulch 213 Comment
  HSC45972  Scirpus microcarpus J. P. Smith 1973-5-26 6859 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC48382  Scirpus microcarpus D. H. Norris May 1970 12465 Humboldt Gold Bluff Beach, Prairie Creek Redwoods State Park Comment
  HSC15634  Scoliopus bigelovii Curt M. Johnson 1966-2-27 108 Humboldt 6 mi. S of Pepperwood, Ave. of the Giants 152 Comment
  UC175808  Scoliopus bigelovii Joseph P. Tracy 1913-6-20 4223 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Valley of Van Duzen R., Dinsmore's Ranch 762 Comment
  CHSC109847  Scrophularia californica B. Castro; L. P. Janeway 2004-9-11 1476 Humboldt North Coast. Near blocked S end of Little River Road 0.25 mi N of Central Avenue; near S end of Clam Beach. 4 Comment
  SD92951  Scrophularia californica Walter Bertsch 1953-7-30 231 Humboldt Redwood forest near Arcata on highway 101 Comment
  HSC65963  Sedum laxum subsp. flavidum M. A. Baker 1980-7-15 2941 Humboldt Near Whiting Ridge. 1341 Comment
  JEPS25709  Sedum laxum subsp. heckneri P. C. Hutchison 1961-5-21 2013 Humboldt 4.3 mi s Berry Summit (Mammoth Point Parking area, Horse Mountain, ski area side road); Horse Mountain, Mammoth Point Parking area, s of Berry Summi Comment
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Aug 17 2011
  UC1225753  Sedum laxum subsp. heckneri Joseph P. Tracy 1948-9-5 18190 Humboldt 1 mi s Grizzly Camp (head of Little Hors-Linto Creek, Trinity Summit); Trinity Summit, head Little Hors-Linto Creek 1371 Comment
  HSC97172  Sedum radiatum Erin Lonergan, Benjamin Hart 2007-6-11 7 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1524 Comment
  CAS-BOT-BC63829  Sedum spathulifolium A. M. Vollmer; L. Beane 1951-6-11 140 Humboldt Along Van Duzen River at Bridgeville. Comment
  HSC96071  Sedum spathulifolium J. McIntire, S. Lyon 2005-6-10 8 Humboldt 1.4 mi. S of Hwy. 299 on Titlow Hill Rd. 945 Comment
  JEPS28948  Sedum spathulifolium P. C. Hutchison 1961-5-22 2029 Humboldt ca 5.4 mi n Orleans (e side Klamath River, high bluff along road); e side Klamath River, n of Orleans Comment
  JEPS19021  Selaginella oregana Joseph P. Tracy 1920-10-24 5407 Humboldt near Korbel; Northern Coast Ranges 60 Comment
  UC1225807  Selaginella wallacei Joseph P. Tracy 1948-5-31 17998 Humboldt Harris 609 Comment
  HSC26637  Senecio integerrimus Thomas W. Nelson 1971-5-31 458 Humboldt 915 Comment
  UC427870  Senecio integerrimus var. major H. E. Parks and J. P. Tracy 1930-5-25 879 Humboldt Laribee Valley Comment
  CAS-BOT-BC364017  Senecio integerrimus var. major Alice Eastwood; John Thomas Howell 1937-6-23 4840 Humboldt 9 miles from Kneeland on road to Yager Comment
  UC1223155  Senecio integerrimus var. major Joseph P. Tracy 1950-5-6 18638 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC205168  Senecio minimus Joseph P. Tracy 1919-8-31 5185 Humboldt Eureka 0 Comment
  UCD135616  Senecio minimus Linda M. Barker 1976-8-2 1677 Humboldt 3 miles west of Arcata. Comment
  UC1199235  Senecio sylvaticus Joseph P. Tracy 1934-8-31 13652 Humboldt along road through woods Kneeland Prairie Kneeland Prairie 762 Comment
  UC1223152  Senecio sylvaticus Joseph P. Tracy 1948-8-8 18087 Humboldt Iaqua School House Comment
  HSC102519  Senecio triangularis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1506 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC34282  Senecio triangularis K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  HSC50533  Senecio triangularis Overton 1979-8-1 12335 Humboldt Near Mill Creek, close to the town of Hoopa 1342 Comment
  HSC57152  Senecio triangularis Overton, Butler 1979-7-26 9948 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  HSC58000  Senecio triangularis G. L. Clifton, Griswold 1979-7-31 11780 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  JEPS37267  Senecio vulgaris Lincoln Constance 1934-6-12 869 Humboldt Dyerville, Bull Creek road and n bank of South Fork Eel River South Fork Eel River, Bull Creek Region Comment
  RSA168840  Senecio vulgaris Joseph P. Tracy 1943-11-28 17454 Humboldt Eel River bar at mouth of Van Duzen near Alton Comment
  HSC12953  Sequoia sempervirens Steve Dorei 1970-10-8 10 Humboldt HSU campus, near corner of Union St. and st. leading to gyms Comment
  POM181978  Sequoia sempervirens J. G. Lemmon 1901-09 s.n. Humboldt Eureka Comment
  UC333628  Sequoia sempervirens unknown Sept. 1901 Humboldt Eureka Comment
  UC672888  Sequoia sempervirens Joseph P. Tracy 1940-10-17 16770 Humboldt Dyerville 48 Comment
  SEINET10612372  Sequoia sempervirens Joseph P. Tracy 1940-10-17 Tracy 16770 Humboldt Dyerville 49 Comment
  UCD92603  Setaria parviflora P. Haggard; G. Leppig 1998-2-4 s.n. Humboldt east of Arcata on North Bank Rd. Above Mad River immediately east of Azalea Reserve. Comment
  POM17181  Sherardia arvensis J. B. Feudge 1923-8-1 49 Humboldt Fortuna. 15 Comment
  SEINET6993447  Sherardia arvensis Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  CAS-BOT-BC205578  Sidalcea malachroides Doris K. Kildale 1928-5-27 5935 Humboldt Kneeland Prairie 853 Comment
  HSC16014  Sidalcea malviflora F. B. Plett 1963-5-15 46 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC35603  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2009 Humboldt French Camp, Bald Hills. Comment
  HSC104350  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 19 Humboldt Kneeland 854 Comment
  HSC36520  Sidalcea oregana A. M. Montalvo, J. D. Ackerman 1973-7-5 96 Humboldt 1 mi. W of Tish A Tang Cr., E of Hoopa, SW slope of N Trinity Mtn. Comment
  CAS-BOT-BC213157  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-7-16 15432 Humboldt Dow's Prairie 60 Comment
  HSC56404  Sidalcea oregana subsp. spicata Griswold, Butler 1979-7-11 7000 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC103762  Silene M. R. Mesler, Sydney Carothers 2013-6-3 1481 Humboldt Near Castle Rock on FS 5N40 about 3.2 miles from NF 60 1248 Comment
  UC14437  Silene antirrhina Chestnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UC1223448  Silene bernardina Joseph P. Tracy 1951-6-26 19586 Humboldt at extreme head of Redwood Creek n side Board Camp Mountain, head of Redwood Creek (n side of Board Camp Mountain) 1541 Comment
  HSC35274  Silene bolanderi A. M. Montalvo, J. D. Ackerman 1975-6-22 493 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36. Comment
  POM264848  Silene californica Lincoln Constance, A. A. Beetle 1940-5-16 2610 Humboldt Coastal bluffs above Alton. Comment
  HSC102130  Silene campanulata subsp. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1034 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC302999  Silene campanulata subsp. glandulosa Joseph P. Tracy 1926-6-20 7623 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC161034  Silene gallica Joseph P. Tracy 1904-7-24 2124 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  HSC100417  Silene gallica Carl C. Marshall May 1885 73 Humboldt Dry soils, roadsides, etc. Comment
  UC302998  Silene grayi Joseph P. Tracy 1926-6-20 7628 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC1541453  Silene hookeri H. E. Parks and J. P. Tracy 1930-5-25 791 Humboldt Laribee Valley 792 Comment
  RSA477903  Silene hookeri Miss Hutchinson 1927-05 s.n. Humboldt [Unspecified] Comment
  CAS-BOT-BC181228  Silene hookeri subsp. bolanderi H. E. Parks; J. P. Tracy 1930-5-25 0791 Humboldt Laribee Valley 792 Comment
  CAS-BOT-BC389068  Silene laciniata subsp. californica M. S. Jussel 1931-5-2 s.n. Humboldt 26 miles N. of Garberville Comment
  HSC68116  Silene laciniata subsp. californica J. P. Smith 1973-5-26 6819 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC4174  Silene laciniata subsp. californica R. Spellenberg 1964-6-16 434 Humboldt 0.25 mi. W of Hwy. 299 bridge over S Fork of Trinity River Comment
  RSA595780  Silene lemmonii R. S. Woglum 1931-7-15 24 B Humboldt Outer Coast Ranges, Sequoia Park. Comment
  UC162883  Silene menziesii Harley P. Chandler June, 1901 1319 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC160974  Sisymbrium officinale Joseph P. Tracy 1908-6 2808 Humboldt Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges 762 Comment
  HSC23752  Sisyrinchium bellum Tim Baroni 1971-7-6 116 Humboldt 8 mi. S of Ferndale on Mattole Rd. Comment
  CDA39474  Sisyrinchium bellum T. C. Fuller 1958-6-17 1715 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC13915  Sisyrinchium bellum F. B. Plett 1963-3-31 14 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  RSA18062  Sisyrinchium californicum Carl B. Wolf 1927-8-22 789 Humboldt Big Lagoon Comment
  JEPS62109  Smilacina racemosa Lincoln Constance 1934-6-2 793 Humboldt Bull Cr. road to mouth of Bull Cr. (and up creek); South Fork Eel River, Bull Creek Region Comment
  UC666973  Smilacina racemosa Joseph P. Tracy 1938-6-13 15908 Humboldt Horse Mountain 1432 Comment
  UC1103493  Smilacina stellata Joseph P. Tracy 1938-7-7 16039 Humboldt Grouse Mountain 1524 Comment
  UC15044  Smilacina stellata J. P. Tracy 1901-4-26 1057 Humboldt Humboldt Hill Immediate Vicinity of Eureka 0 Comment
  UC673109  Solanum americanum Joseph P. Tracy 1940-10-17 16767 Humboldt 2 - 5 mi e of the South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  HSC41004  Solanum parishii J. O. Sawyer 1975-10-17 2715 Humboldt Near Box Camp on Big Hill Rd. to N Trinity Mtn. Comment
  UC577350  Solanum umbelliferum Joseph P. Tracy 1937-7-24 15528 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  RSA20813  Solidago canadensis var. gilvocanescens C. B. Wolf 1937-9-9 9311 Humboldt North Coast Range, Wildcat Ridge, 6.3 miles south of Ferndale. 305 Comment
  CAS-BOT-BC365430  Solidago elongata Alice Eastwood 1907-4-21 19 Humboldt Port Trinidad Comment
  UC1070251  Solidago elongata H. L. Person 1932-7-19 Humboldt Lindsay Creek Eureka Quad, Lindsay Creek Comment
  UC165026  Solidago elongata J. P. Tracy 1900-8-26 923 Humboldt immediate vicinity Eureka 0 Comment
  UC535729  Solidago elongata Eleanor Armstrong 1934-8-23 1189 Humboldt Richardson Grove 121 Comment
  HSC12531  Solidago spathulata Wilbur Peterson 1970-10-7 22 Humboldt McKinleyville Beach at the end of Murray Rd. Comment
  HSC90234  Solidago spathulata L. Watson, J. Meninga Aug 1990 10 Humboldt Near Manilla. Mad River Slough and Dunes. 10 ft. N of parking lot, E of trail Comment
  JEPS120527  Solidago spathulata B. Castro and L. P. Janeway 2004-9-10 1474 Humboldt North Coast. South Spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site; on other side of South Spit Road from the Humboldt Bay mudflats. Comment
  RSA21022  Solidago spathulata C. B. Wolf 1937-9-12 9332 Humboldt Clam Beach. 8 Comment
  SEINET5506402 Image available Solidago spathulata S. K. Harris 1939-1 s.n. Humboldt Samoa Comment
  CAS-BOT-BC364968  Solidago velutina subsp. californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC374428  Sonchus asper Joseph P. Tracy 1932-5-22 10115 Humboldt North Coast Ranges. South Fork of Eel River, between Miranda and Redway 91 Comment
  HSC97205  Sorbus scopulina Kiera A. Freeman, Heather J. Perry 2007-6-13 7 Humboldt 1.3 mi. E of NF1 on FS 5N04 1585 Comment
  HSC102103  Sorbus sitchensis var. sitchensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1006 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC36097  Sparganium angustifolium Ken Harrington 1973-10-7 Humboldt Log pond in Arcata Comment
  UCSB25395  Sparganium emersum Keefe, Joseph 1967-7-8 Humboldt East side of U.S. Highway 101, turnoff to Crannell Road, north of Eureka 6 Comment
  CAS-BOT-BC235366  Spartina Avis Keedy 1988-9-18 8 Humboldt On Jolly Giant Creek near mouth Comment
  RSA244949  Spartina densiflora D. E. Anderson 1963-9-15 2814 Humboldt Humbolt Bay Comment
  RSA246884  Spartina densiflora R. F. Thorne, P. Everett 1965-8-7 35203 Humboldt Near sea level, Samoa Peninsula Comment
  CDA35771  Spartina foliosa J. R. Keck Jr. 1987-10-28 PDR# 331439 Humboldt Humboldt Bay tidal zone near Somoa. 0 Comment
  CAS-BOT-BC390304  Spergularia macrotheca var. macrotheca S. K. Harris 1936-6-7 3225 Humboldt Eureka Comment
  CAS-BOT-BC390614  Spergularia rubra Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  POM160286  Spiraea densiflora Joseph P. Tracy 1926-6-20 7630 Humboldt Horse Mountain. 1463 Comment
  HSC99553  Stachys ajugoides var. rigida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 218 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC577326  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UCLA70847  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  CDA41010  Stachys ajugoides var. rigida T. C. Fuller 1958-6-17 593 -58 Humboldt Ferndale. 0 Comment
  HSC23710  Stachys rigida Tim Baroni 1971-6-25 38 Humboldt Comment
  UCR84759  Stachys rigida var. quercetorum Kathy Harper 1992-5-14 s.n. Humboldt Coast Range, Van Duzen River, c. 1.5 mi. west of Bridgeville on State Hwy 36 195 Comment
  UC1103550  Stellaria nitens Joseph P. Tracy 1927-6-12 8147 Humboldt Horse Mountain 1432 Comment
  UC1199363  Stephanomeria elata Joseph P. Tracy 1930-7-25 8880 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC97388  Stipa lepida G. N. Bos 1965-5-15 279 Humboldt Berry Summit near Hwy. 299 Comment
  HSC97389  Stipa lepida J. P. Tracy 1933-5-20 12247 Humboldt Grassy hillside near Petrolia, Mattole Valley 152 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
  HSC44061  Streptanthus breweri Thomas W. Nelson 1977-7-4 3587 Humboldt W side of road N of Alder Springs, head of N Fork of Conley Creek 1494 Comment
  HSC70349  Streptanthus tortuosus M. A. Baker 1980-6-7 1812 Humboldt Near Brush Mtn. 1128 Comment
  UC1492818  Streptanthus tortuosus Freed W. Hoffman 1950-7-10 3434 Humboldt on road from Willow Creek to Happy Camp 6.6 mi s Klamath River; Hoopa Indian Reservation Comment
  UC1541461  Streptanthus tortuosus var. orbiculatus W. K. Parks July, 1933 Humboldt Buck Mountain Comment
  HSC100891  Streptopus amplexifolius Carl C. Marshall May 1886 191 Humboldt Jacoby Cr. Comment
  HSC58360  Swertia radiata Overton, Butler 1979-8-2 12712 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC35348  Symphoricarpos albus var. laevigatus A. M. Montalvo, J. D. Ackerman 1975-6-22 481 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  HSC73239  Symphoricarpos albus var. laevigatus M. A. Baker 1980-5-18 1320 Humboldt Near Black Mountain. 360 Comment
  POM285008  Symphoricarpos albus var. laevigatus Lyman Benson 1928-7-12 473 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  UC1239540  Symphoricarpos mollis Joseph P. Tracy 1948-9-5 18188 Humboldt 3 mi s Grizzly Camp; Trinity Summit 1524 Comment
  HSC58385  Symphyotrichum bracteolatum Terry Griswold 1979-7-25 10923 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  HSC75958  Symphyotrichum bracteolatum Overton, Butler 1979-7-24 9740 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  CHSC10151  Symphyotrichum chilense J. W. Johnson 1961-8-23 1048 Humboldt Arcata. Along the sides of the Lanphere County Road by Mad River Slough. Comment
  OBI17003  Symphyotrichum chilense Carl B. Wolf 1937-9-14 9355 Humboldt Redwood hwy 4 mi N of Loleta 8 Comment
  JEPS40780  Symphyotrichum subspicatum W. L. Jepson 1936-8-17 17913 Humboldt 2 mi s, near Still's ranch Field's Landing Comment
  SEINET12275944  Symphytum asperum J. P. Tracy 1943-1 17448 Humboldt near Iverson dairy ranch, Arcata Comment
  UC168958  Synthyris reniformis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5749 Humboldt Trinity Summit; North Coast Ranges Comment
  UC902235  Synthyris reniformis Joseph P. Tracy 1945-5-15 17509 Humboldt Kneeland Prairie 762 Comment
  JEPS26264  Synthyris reniformis Joseph P. Tracy 1948-8-15 18116 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  JEPS9924  Synthyris reniformis Joseph P. Tracy 1922-4-30 6039 Humboldt along road between three creeks and mouth of Willow Creek; Northern Coast Ranges, Brannan Mountain 914 Comment
  UC199113  Synthyris reniformis Chestnut and Drew 1888-7-8 Humboldt Campbell's Comment
  HSC1030  Tanacetum bipinnatum J. Wendell Howe 1933-5-23 Humboldt Samoa Comment
  SEINET3816603  Tanacetum bipinnatum J. P. Tracy 1901-8-7 1269 Humboldt Sand hills of ocean beach at Samoa, opp eureka Comment
  UCSB15911  Tanacetum bipinnatum Breedlove, Dennis 1962-6-8 Humboldt Near coast on U.S. Highway 101, 3 miles south of Orick Comment
  RSA18773  Tanacetum camphoratum P. A. Munz 1954-7-25 19869 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  SEINET11800644  Tanacetum parthenium J. P. Tracy 1946-1 17659 Humboldt Eureka, Tracy's garden Comment
  RSA0049665  Taraxacum laevigatum Dean Wm. Taylor 2011-5-4 21112 Humboldt Alderpoint Road in the vicinity of the Snowline Fox Farm (Larabee Valley quadrangle placename), vicinity of the road crossing of Knack Creek 341 Comment
  POM299136  Taxus brevifolia Joseph P. Tracy 1927-3-27 7865 Humboldt Willow Creek Canyon 762 Comment
  HSC89427  Tellima grandiflora P. A. Daly 1984-5-8 4 Humboldt Trinidad Head 61 Comment
  HSC20432  Tellima grandiflora Jack Rockwell 1962-4-24 24 Humboldt S bank Van Duzen River, E of Hwy. 101 9 Comment
  UC1225746  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1948-6-13 18037 Humboldt 7 mi nw Blocksburg; Larrabee Creek 304 Comment
  UC1198809  Thlaspi montanum var. montanum Harold E. Parks and Joseph P. Tracy 1934-6-14 11029 Humboldt Horse Mt. 1402 Comment
  UC673196  Thlaspi montanum var. montanum Lincoln Constance and Reed C. Rollins 1942-5-12 2887 Humboldt Klamath River 7 mi ne Weitchpec (Klamath-Siskiyou Region); , Klamath River 121 Comment
  HSC95903  Thuja plicata Will Ferrand 2001-6-17 2 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  NY17194  Thuja plicata W. B. Cooke 1969-8-19 2222 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SBBG56417  Thuja plicata H. E. Parks 1932-7-25 1139 Humboldt Camp 21, Hammond Lumber Co, Trinidad 152 Comment
  UC1174840  Thuja plicata P. C. Everett and E. K. Balls 1959-10-25 23970 Humboldt 6.9 mi sw from Ferndale (on Old Coast Road to Capetown, on heavily wooded slopes, n coastal conifer forest) 563 Comment
  UC275508  Thuja plicata Joseph P. Tracy 1923-6-24 6365 Humboldt Bald Mountain North Coast Ranges, Bald Mountain (in cold wet meadow near high prairie) 1066 Comment
  UC275509  Thuja plicata Joseph P. Tracy 1923-11-18 6593 Humboldt Wild Cat Ridge near Ferndale; Northern Coast Ranges, Wild Cat Ridge 457 Comment
  UC534994  Thuja plicata H. E. Parks 1932-7-25 0 -1139 Humboldt Camp 21 Hammond Lumber Company Trinidad (Trinidad, in bogs) 152 Comment
  HSC12522  Tiarella trifoliata var. unifoliata J. P. Tracy 1901-6-30 1209 Humboldt Near Eureka 0 Comment
  UC667104  Tolmiea diplomenziesii Joseph P. Tracy 1935-7-25 14240 Humboldt Trinity Summit, lower end of Brett Hole Brett Hole; Trinity Summit, Brett Hole 1584 Comment
  HSC97910  Tolmiea menziesii Cara Witte 2007-6-27 378 Humboldt Forest Service Road 6N08. Friday Ridge Road. Approximately 2 miles south of intersection with 5N09. 1474 Comment
  HSC21159  Tonella tenella D. E. Anderson 1965-4-24 3546 Humboldt 2 mi. E of Berry Summit along Hwy. 299 Comment
  UC147887  Tonella tenella Joseph P. Tracy 1906-5-6 2442 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CHSC32806  Tragopogon porrifolius Lora L. Anderson 1981-4-26 5 Humboldt Ca. 0.5 mi w of Mad River, 200 yds n of 200/299 separation bridge, 8 mi ne of Arcata. Along roadside. 30 Comment
  JEPS63133  Trichostema lanceolatum Lincoln Constance 1934-6-14 874 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 304 Comment
  UC577372  Trichostema oblongum Joseph P. Tracy 1927-8-27 8327 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC70781  Trientalis latifolia Gail Newton 1980-7-14 1515 Humboldt Near Deadman Ridge 1097 Comment
  HSC17938  Trientalis latifolia Frances Oldridge 1946-1 Humboldt Freshwater Comment
  SEINET8729732 Image available Trientalis latifolia H. E. Parks, S. T. Parks 1952-1 7548 A Humboldt Spruce Cove, Trinidad. 0 Comment
  UC162776  Trifolium albopurpureum var. albopurpureum Joseph P. Tracy 1908-6 2854 Humboldt opposite Buck Mtn (valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC1223382  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1933-5-20 12248 Humboldt 1 mile west Petrolia (Mattole Valley); Northern Coast Ranges Comment
  UC1223385  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1934-6-24 13260 Humboldt Kneeland Prairie 762 Comment
  UC160914  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1908-6-9 2652 Humboldt Kneeland Prairie North Coast Ranges 762 Comment
  UC1197221  Trifolium albopurpureum var. olivaceum J. P. Tracy 1901-4-24 1040 Humboldt immediate vicinity Eureka 0 Comment
  SEINET6934848  Trifolium bifidum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  RSA168904  Trifolium bifidum var. decipiens Joseph P. Tracy 17427 Humboldt Trinity Highway, east of Redwood Creek, at Berrys. Comment
  UC33569  Trifolium cyathiferum Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC495701  Trifolium cyathiferum Joseph P. Tracy 1932-6-14 10150 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC97569  Trifolium eriocephalum subsp. eriocephalum Cara Witte 2007-6-7 225 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  UC495651  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-21 8770 Humboldt Larrabee valley Northern Coast Ranges 701 Comment
  HSC100533  Trifolium filipes Carl C. Marshall May 1886 411 Humboldt Dobbyn's Creek. Comment
  CDA27949  Trifolium fucatum T. C. Fuller 1958-6-17 1720 Humboldt Petrolia, Lower Mattole. 0 Comment
  SEINET12147991  Trifolium fucatum var. virescens J. P. Tracy 1938-1 15950 Humboldt S side of Cape Ridge. Cape Mendocino, s of point of the cape 30 Comment
  HSC45170  Trifolium hirtum R. Sutherland 1978-5-16 9 .16578 Humboldt 402 Comment
  HSC58628  Trifolium longipes Overton, Butler 1979-7-31 11447 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC58663  Trifolium longipes G. L. Clifton, Griswold 1979-8-1 12012 Humboldt Near High Springs, close to the town of Hoopa 1798 Comment
  UC175675  Trifolium longipes subsp. hansenii Joseph P. Tracy 1913-6-17 4157 Humboldt Northern Coast Ranges. Buck Mountain, near summit. Comment
  HSC76223  Trifolium longipes subsp. oreganum Overton, Butler 1979-7-24 9763 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC165529  Trifolium longipes var. hansenii Joseph Burtt Davy 1899-6-22 5765 Humboldt Trinity Summit Comment
  UC1197210  Trifolium longipes var. hansenii Joseph P. Tracy 1913-6-23 4282 Humboldt near summit of ridge (betw Van Duzen and Mad Rivers, Dinsmore's ranch); Northern Coast Ranges 1066 Comment
  UC1197236  Trifolium macraei Joseph P. Tracy 1911-5-30 3204 Humboldt Bucksport Northern Coast Ranges, Humboldt Bay 0 Comment
  HSC7238  Trifolium microcephalum J. R. Woodside 1963-5-19 2 Humboldt 1 1/4 mi. N of Fairhaven Comment
  HSC15145  Trifolium microcephalum J. W. Johnson 1962-5-13 1355 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  JEPS65975  Trifolium microcephalum Lincoln Constance 1934-5-23 609 Humboldt above Look Prairie (se slope of mtn); South Fork Eel River, Bull Creek Region Comment
  SEINET6935126  Trifolium microdon Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC1541578  Trifolium oliganthum Parks and Tracy 1930-5-25 957 Humboldt Laribee Valley 762 Comment
  HSC28180  Trifolium repens Richard Curtis 1973-9-27 18 Humboldt Arcata, on the N side of 7th St. just before it crosses the freeway. Comment
  HSC103979  Trifolium subterraneum Kyle Brown 2015-4-25 42 Humboldt Arcata, trail along the Mad River 8 Comment
  UC16778  Trifolium variegatum var. melananthum Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5530 Humboldt Scotia Comment
  UC495677  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8573 Humboldt along South Fork of Eel River (Miranda); Northern Coast Ranges 121 Comment
  POM214883  Trifolium variegatum var. variegatum Joseph P. Tracy 1932-5-22 10123 Humboldt South fork of Eel River, between Miranda and Redway. Comment
  JEPS4131  Trifolium willdenovii Joseph P. Tracy 1932-4-23 9829 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1197522  Trifolium willdenovii Joseph P. Tracy 1914-7-5 4557 Humboldt High Prairie Northern Coast Ranges, Bald Mtn 1066 Comment
  HSC104449  Trifolium wormskioldii Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 2 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC1223374  Trifolium wormskioldii Joseph P. Tracy 1950-6-29 18940 Humboldt 6 mi s Arcata (Fickle Hill) Comment
  POM277677  Trifolium wormskioldii Lyman D. Benson 1928-7-10 438 Humboldt Clam Beach, Trinidad. Hills back of the ocean. 15 Comment
  HSC89895  Triglochin maritima Leonel Arguello 1989-6-11 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC672871  Triglochin maritima Joseph P. Tracy 1934-7-20 13466 Humboldt Big Lagoon 3 Comment
  HSC14167  Triglochin maritima S. J. Moore 1965-5-8 15 Humboldt Marsh adjacent to Mad River Slough. Comment
  RSA46966  Trillium albidum E. N. Crosby 1935-3-10 66 Humboldt Blue Lake Comment
  UC1197807  Trillium albidum Joseph P. Tracy 1933-6-13 12574 Humboldt near summit on rd. from Hoopa westward to Bair's (Hoopa Mt.); Hoopa Mt. 1066 Comment
  SEINET12050371  Trillium albidum F. H. Utech 1988-1 88 -286 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, Mile Marker 42.00, above Van Duzen River 800 Comment
  UC146219  Trillium albidum Joseph P. Tracy 1905-4-2 2155 Humboldt region about Humboldt Bay near Arcata; Northern Coast Region, Humboldt Bay 0 Comment
  UC667134  Trillium angustipetalum Joseph P. Tracy 1928-4-29 8418 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  HSC15690  Trillium kurabayashii H. S. Logsdon 1964-4-11 8 Humboldt 4 mi. NE of Orick at Boye's Prairie Comment
  HSC96775  Trillium kurabayashii M. Mesler 2006-6-6 609 Humboldt 1.2 mi. SE of intersection of USFS Rd. 8N01 and Box Camp loop 1524 Comment
  HSC44286  Trillium ovatum D. L. Goforth 1977-4-23 2 Humboldt 2.5 mi.. S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC74571  Trillium ovatum M. A. Baker 1980-5-17 1192 Humboldt Near Le Perron Peak 792 Comment
  CAS-BOT-BC133395  Trillium ovatum Doris K. Kildale 1926-3-25 1630 Humboldt Foot of Liscom Hill near Essex 30 Comment
  HSC34635  Trillium ovatum Robert M. Specht 1975-4-9 125 Humboldt W of Seawood Drive exit of Hwy. 101, N of Trinidad Comment
  SEINET5722160 Image available Trillium ovatum David G. Forbes 1966-1 436 Humboldt 0.5 mile south of Weott on the Highway of the Giants.; Weott 30 Comment
  UCD19981  Trillium ovatum C. H. Lamoureux; R. Gankin 1956-3-17 1042 Humboldt Near southern boundary of Jensen Grove, on Hwy 101 between Meyers and Miranda. Comment
  UC198870  Triodanis biflora Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC20856  Triphysaria eriantha subsp. eriantha Francis Winter 1960-4-19 Humboldt Samoa Peninsula, Fairhaven Airport entrance, 12 mi. W of Arcata Comment
  JEPS26219  Triphysaria eriantha subsp. eriantha J. P. Tracy 1911-5-30 3207 Humboldt at Eureka Bucksport (Bucksport); Northern Coast Region, Eureka 0 Comment
  UC1222798  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1950-6-18 18765 Humboldt 1 mi w Petrolia (hills between town and Ocean); hills between Petrolia and Ocean Comment
  UCR39973  Triphysaria pusilla L. P. Janeway 1984-5-13 772 Humboldt Along Kneeland/Bridgeville Road c. 11 mi east of Post Office 715 Comment
  JEPS13344  Triphysaria versicolor subsp. faucibarbata H. E. and S. T. Parks May, 1930 750 Humboldt near Bridgeville Comment
  CAS-BOT-BC199619  Trisetum canescens J. P. Tracy 1903-5-22 1877 Humboldt Alder Point on Eel River 152 Comment
  RSA10052  Trisetum canescens Joseph P. Tracy 1926-5-22 7502 Humboldt Northern Coast Ranges, Prairie Creek. 152 Comment
  UCD93906  Trisetum cernuum R. Tofsrud 1949-7-1 s.n. Humboldt On road between Scotia and Capetown. Comment
  UCSB494  Trisetum cernuum Parks, H.; Parks, S. 1952-06 Humboldt Spruce Cove, Trinidad 60 Comment
  UCSB13001  Triteleia hyacinthina Muller, Katherine 1954-6-21 Humboldt Olson Creek, 2 mi E. NE. of Mad River Comment
  SD649  Triteleia laxa Mary S. Snyder 1894-5-14 Humboldt Eel River. 320 Comment
  UC666898  Triteleia laxa Joseph P. Tracy 1930-7-27 8897 Humboldt Bear River Ridge 609 Comment
  UC666899  Triteleia laxa Joseph P. Tracy 1930-7-6 8841 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC526355  Triteleia laxa Doris K. Kildale 1926-5-16 2005 Humboldt Miranda, South Fork of Eel River Comment
  SEINET200846  Triticum aestivum J. P. Tracy 1922-7-16 6102 Humboldt CULTIVATED; Eureka 0 Comment
  HSC18445  Tropaeolum majus Jana Kattenhorn 1970-10-24 134 Humboldt Arcata, HSU campus, S of Harpst St. Comment
  CAS-BOT-BC85891  Tsuga heterophylla C. B. Wolf 1930-10-25 1019 Humboldt Along the Blue Lake to Willow Creek road (Lord Ellis Road), 12 mi. above Blue Lake 304 Comment
  UC63994  Tsuga heterophylla Mrs. M. H. Manning 1901-10-1 Humboldt near Hupa 762 Comment
  UC672889  Tsuga heterophylla Joseph P. Tracy 1940-8-25 16704 Humboldt Bald Mountain Bald Mountain (in forest mainly of Douglas Fir, in cold shaded gulches) 914 Comment
  CAS-BOT-BC73930  Turritis glabra Alice Eastwood; John Thomas Howell 1937-6-23 4804 Humboldt Little Van Duzen River. Comment
  CAS-BOT-BC73936  Turritis glabra S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3418 Humboldt Northwest slopes of Buck Mountain. 822 Comment
  UC1585363  Umbellularia californica R. Raiche, K. Zadnik, and H. Forbes 1989-2-10 Humboldt just w of Pine Ridge Summit (w of Hoopa, Bair Road); Bair Road 840 Comment
  HSC37411  Urtica dioica subsp. gracilis Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 507 Humboldt Along Lost Man Creek. 38 Comment
  UC302988  Urtica dioica subsp. gracilis Joseph P. Tracy 1926-5-25 7516 Humboldt around Humboldt Bay (Northern Coast Ranges, Elk River Valley); Northern Coast Ranges, Elk River Valley 30 Comment
  UC672857  Urtica dioica subsp. gracilis Joseph P. Tracy 1927-3-6 7837 Humboldt Elk River 30 Comment
  CAS-BOT-BC193962  Vaccinium cespitosum Doris K. Kildale 1927-7-10 3725 Humboldt Gans Prairie, Bald Hills Comment
  CAS-BOT-BC199319  Vaccinium ovatum L. B. Kildale 1930-9-9 10408 Humboldt Bald Mountain 914 Comment
  HSC7908  Vaccinium ovatum J. Pursell 1964-10-17 10178 Humboldt Road to Box Camp in Hoopa Valley 762 Comment
  HSC7909  Vaccinium ovatum C. B. Wolf 1927-8-27 1159 Humboldt Klamath River, 2 mi. below the mouth of the Salmon River Comment
  POM118412  Vaccinium ovatum Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  CAS-BOT-BC199405  Vaccinium parvifolium Doris K. Kildale; J. W. Gillespie 1929-6-25 8393 Humboldt Pines Pasture, Eureka Comment
  OBI14438  Vaccinium parvifolium Joseph P. Tracy 1943-3-14 17410 Humboldt Vicinity of Carlotta Comment
  OBI14439  Vaccinium parvifolium H. E. McMinn 1931-6-28 2543 B Humboldt Orick to Requa Comment
  UC562351  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1935-7-26 14262 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  CAS-BOT-BC5074  Valeriana sitchensis subsp. scouleri Alice Eastwood; John Thomas Howell 1937-6-24 4868 Humboldt 5 miles E of Berry Summit Comment
  CAS-BOT-BC76049  Vancouveria hexandra Mrs. H. E. Wilder 1933-5-20 s.n. Humboldt Carlotta. Comment
  CAS-BOT-BC76055  Vancouveria hexandra Harley P. Chandler 1901-5-1 1162 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  HSC68321  Vancouveria hexandra J. P. Smith 1973-5-26 6841 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC71796  Vancouveria hexandra Gail Newton 1980-6-16 171 Humboldt Near Monks Camp. 1097 Comment
  HSC99463  Vancouveria hexandra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 117 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA0007780  Vancouveria hexandra Larry E. DeBuhr, Gary Wallace 1972-5-22 611 Humboldt Prairie Creek, Redwoods State Park, along Davidson Rd. Comment
  SEINET10536497  Vancouveria planipetala Mary Susan Taylor 1980-6-11 Taylor 2843 Humboldt Gray Falls Campground, Six Rivers Natl Forest, on W side of Rd 6N56 to foot bridge, on N side of Hwy 299, ca. 2 mi NW of Burnt Ranch. 274 Comment
  UC1198212  Veratrum californicum var. californicum Joseph P. Tracy 1932-7-20 10733 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1225851  Veratrum insolitum Joseph P. Tracy 1948-9-12 18213 Humboldt 1 mi w Box Camp; Trinity Summit 1371 Comment
  SDSU11035  Verbascum thapsus Harvey 1938-8-14 2322 Humboldt Trinity River. US 299. Comment
  UC175797  Veronica americana Joseph P. Tracy 1912-6-9 3685 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  HSC21197  Veronica americana W. F. Nickel 1965-5-15 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir, near Jolly Giant Parking Lot Comment
  HSC100687  Veronica peregrina Carl C. Marshall Jun 1887 203 Humboldt Humboldt County. Comment
  UC176113  Veronica scutellata Joseph P. Tracy 1912-7-21 3778 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  JEPS16812  Veronica serpyllifolia subsp. humifusa Joseph P. Tracy 1935-7-24 14176 Humboldt Trinity Summit, near Ranger Station Trinity Summit 1828 Comment
  RSA249386  Veronica serpyllifolia var. humifusa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5584 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC15258  Vicia americana var. americana J. P. Tracy 1935-5-26 13908 Humboldt Iaqua 610 Comment
  HSC40041  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1976-7-1 2893 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC98614  Vicia americana var. americana Cara Witte 2008-7-2 803 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC1197467  Vicia americana var. americana Joseph P. Tracy 1914-5-14 4437 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  UC1197479  Vicia americana var. americana Joseph P. Tracy 1936-3-29 14786 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  UCD108778  Vicia benghalensis Rimo Bacigalupi; L. Heckard, J. Weiler 1961-6-23 7838 Humboldt About 1 mile west of Carlotta (or about 1/2 mile east of Hydesville). Comment
  HSC15259  Vicia hirsuta S. J. Roberts 1965-5-2 48 Humboldt Along old railroad Comment
  HSC100544  Vicia sativa Carl C. Marshall Sep 1887 442 Humboldt Salmon Creek. Comment
  UCD108854  Vicia sativa subsp. nigra Linda M. Barker 1976-5-13 1481 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC15273  Vicia sativa subsp. sativa W. F. Nickel 1965-5-12 Humboldt On H.S.C. campus behind the Biological Sciences building Comment
  HSC78754  Vicia tetrasperma L. P. Janeway, Paul Wilson 1984-5-25 828 Humboldt N Spit of Humboldt Bay, BLM lands near the Coast Guard Station 5 Comment
  HSC89577  Vicia tetrasperma K. Grenier, Leonel Arguello 1989-6-19 353 Humboldt Bald Hills Grasslands. At Stagecoach Stop. Comment
  RSA518642  Vicia tetrasperma Barbara Ertter, Thomas J. Delendick 1987-5-16 6912 Humboldt Hwy 299, ca 8 mi E of Arcata, 9.5 mi W of Lord Ellis summit. Comment
  UC1761428  Viola Milo S. Baker 1923-7-30 Humboldt 1/2 mi W of Fredericksons House (near Hwy from Eureka to Bridgeville on Van Dusen River) Comment
  HSC21760  Viola adunca G. N. Bos 1965-5-2 251 Humboldt 1 mi. E of Fernwood F.G.S. on Bald Mtn. Rd. 762 Comment
  UC19274  Viola cuneata Harley P. Chandler June, 1901 1297 Humboldt Hupa Indian Reservation; North Coast Ranges 609 Comment
  UC1222521  Viola cuneata Joseph P. Tracy 1950-7-1 18946 Humboldt at summit near Clear Lake; Grouse Mountain 1524 Comment
  HSC21785  Viola glabella Frances Oldridge 1946-1 Humboldt Eureka Comment
  HSC34157  Viola glabella Linda M. Barker 1974-5-11 178 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC91931  Viola glabella E. Mackey 1986-9-2 Humboldt Patrick's Point State Park Comment
  UC183623  Viola glabella Joseph P. Tracy 1913-3-9 4018 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC536493  Viola glabella Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  UC1762124  Viola glabella Milo S. Baker 1926-7 145 -26 Humboldt S. Fork Mt., 5 mi from hwy Comment
  SEINET6942419  Viola hallii Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  HSC96539  Viola macloskeyi Gordon Leppig 1998-5-11 761 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  JEPS91197  Viola macloskeyi subsp. macloskeyi Dean W. Taylor 1970-5-8 328 Humboldt Sphagnum bog North of Arcata; ; Sphagnum bog North of Arcata 3 Comment
  UC1198450  Viola ocellata Joseph P. Tracy 1921-4-24 5452 Humboldt Phillipsville Flat, South Fork of Eel River Phillipsville Flat; Northern Coast Ranges, South Fork of Eel River, Phillipsvill 91 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
  HSC32929  Viola purpurea subsp. purpurea Thomas W. Nelson 1973-5-30 974 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  HSC40552  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1976-5-23 2521 Humboldt SW facing slopes 1666 Comment
  UC66202  Viola purpurea subsp. purpurea Joseph Burtt Davy and Walter C. Blasdale 1899-5 5660 Humboldt North Coast Ranges; ; Summit of ridge, Hoopa Mt., from Bairs to Hoopa Comment
  CHSC2036  Viola sempervirens E. Crouch 1929-5-9 Humboldt Redwoods. 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
  UC1198435  Viola sempervirens Joseph P. Tracy 1933-6-13 12588 Humboldt near summit of Hoopa Mountain ( on road from Hoopa westward to Bair's) 1066 Comment
  UC1198432  Viola sheltonii Joseph P. Tracy 1942-6-23 17254 Humboldt near Water-dog Lakes (Trinity Summit); Trinity Summit 1828 Comment
  POM92419  Vitis californica L. R. Abrams 1922-6-25 8220 Humboldt 6 miles N of Garberville Comment
  HSC40867  Vulpia bromoides Linda M. Barker 1976-4-30 1398 Humboldt 3 mi. W of Arcata Comment
  SEINET11682992  Vulpia bromoides K. S. Erdman 1970-1 4818 Humboldt summit of Gold Bluffs on park road about 2 mi W of US 101 at Berry Glenn, Redwood National Park Comment
  CHSC19486  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith Jr. 1970-5-10 5056 Humboldt Along road from Redwood Creek to Hoopa, ca 1-3 miles west of Hoopa. Comment
  SEINET10604431  Vulpia microstachys var. ciliata Joseph P. Tracy 1913-6-18 Tracy 4194 Humboldt Northern Coast ranges of California. Dinsmore's Ranch; in valley of Van Duzen River Opposite Buck Mountain. In dry gully. Not common. 762 Comment
  CAS-BOT-BC184236  Vulpia microstachys var. pauciflora Henry M. Pollard 1948-7-19 s.n. Humboldt Between Orleans and Van Fleet ranch Comment
  UC1103717  Vulpia microstachys var. pauciflora Joseph P. Tracy 1913-6-19 4201 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1145191  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-7-5 15039 Humboldt Grouse Mountain 1524 Comment
  UC1155009  Vulpia microstachys var. pauciflora Richard Spellenberg 1965-6-14 1122 Humboldt about 2 mi e Kneeland; Kneeland Prairie Comment
  HSC9926  Vulpia myuros E. W. Styskel 1964-4-3 56 Humboldt 0.25 mi. S of Garberville along Sprowl Creek Rd. Comment
  UC1152014  Vulpia myuros var. hirsuta A. H. Murphy 1951-4-2 7 Humboldt 0.25 mi s Phillipsville (along Highway 101) Comment
  UC38479  Vulpia myuros var. hirsuta Harley P. Chandler May 1901 1120 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  HSC40231  Whipplea modesta J. P. Smith, J. O. Sawyer 1976-5-2 8621 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  HSC42304  Whipplea modesta Tom Duebendorfer 1977-5-15 50 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC67508  Whipplea modesta J. P. Smith, J. O. Sawyer 1973-5-12 6705 Humboldt 10.4 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC98362  Whipplea modesta T. Jimerson, J. Pageau 1979-6-12 528 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  JEPS43494  Whipplea modesta Lincoln Constance 1934-5-31 761 Humboldt along Bull Cr. from w boundary of Park to Grasshopper Pk. (Squaw Crk.) rd. (n side of cr.); South Fork Eel River, Bull Creek Region, Bull Cr. flat Comment
  HSC70753  Woodwardia fimbriata R. York 1980-5-17 530 Humboldt Near Le Perron Peak 1066 Comment
  HSC79482  Woodwardia fimbriata Kenneth Clark 1980-6-14 678 Humboldt N fork of Dead Man's Gulch 84 Comment
  JEPS60110  Woodwardia fimbriata Lincoln Constance 1934-6-2 784 Humboldt S Fork Eel River; Bull Creek Region Comment
  CAS-BOT-BC77813  Woodwardia fimbriata Doris K. Kildale 1926-8-8 2451 Humboldt Bull Creek Flat Comment
  HSC58331  Wyethia angustifolia Overton, Butler 1979-8-2 12632 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC74374  Wyethia angustifolia M. A. Baker 1980-6-28 2493 Humboldt Near Mad River Buttes 1445 Comment
  JEPS32069  Wyethia angustifolia Joseph P. Tracy 1936-6-17 14947 Humboldt nw slope Buck Mountain 762 Comment
  JEPS28953  Wyethia glabra D. E. Breedlove 1961-7-4 654 Humboldt 13.7 mi w Willow Creek (U.S. Highway 299) 731 Comment
  BLMAR442  Xanthium spinosum Jennifer Anthony-Wheeler 2008-10-1 442 Humboldt Humboldt County, growing on Collenberg dairy, Mad River Road 7 Comment
  HSC33411  Xerophyllum tenax Thomas W. Nelson 1974-5-30 1351 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  HSC41257  Xerophyllum tenax Brad Klipfel 1974-6-25 447 Humboldt Horse Mtn. Comment
  HSC73049  Xerophyllum tenax M. A. Baker 1980-7-11 2775 Humboldt Near Red Mtn. 1341 Comment
  RSA498212  Xerophyllum tenax W. Hutchinson 1927-05 s.n. Humboldt Humboldt County Comment
  HSC8418  Zeltnera muehlenbergii J. Wendell Howe 1934-7-9 1304 Humboldt Alderpoint Comment
  HSC99016  Zigadenus micranthus Cara Witte 2007-5-21 66 Humboldt White Oak Opening. 1257 Comment
  UC176187  Zigadenus micranthus var. micranthus Joseph P. Tracy 1912-6-9 3692 Humboldt Alton Northern Coast Region 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
  HSC13443  Zizania palustris var. interior Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment



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