Search Results — 2000 specimen records retrieved (1388 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
  CAS-BOT-BC77964  Abies concolor L. R. Abrams 1918-6-15 7128 Humboldt Brannan Mt near Willow Creek 1341 Comment
  HSC45921  Abies grandis Jerome Peterson 1978-5-28 28 Humboldt HSC Campus, NW of Founders Hall Comment
  UCD134238  Abies grandis T. I. Storer 1931-7-1 2225 Humboldt Coast. Comment
  HSC73215  Abies procera Gail Newton 1980-6-24 603 Humboldt Near Ladder Rock 1570 Comment
  CHSC55899  Abronia latifolia L. P. Janeway 1987-7-31 2542 Humboldt Vicinity of Eureka; North spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  HSC41125  Abronia latifolia Thomas W. Nelson, Jane Nelson, James Nelson 1976-9-26 3266 Humboldt Along beach S of Fern Canyon. Comment
  UC55523  Abronia latifolia P. E. Goddard 1901-8-6 180 Humboldt Regna Beach Comment
  SD41447  Abronia umbellata subsp. breviflora Edith A. Purer 1932-7-7 4155 Humboldt Samoa Comment
  UC146158  Abronia umbellata subsp. breviflora J. P. Tracy 1906-9-29 2550 Humboldt Samoa, Ocean Beach, Sand Hills Comment
  CDA40639  Acaena novae-zelandiae G. S. Lester 1973-11-8 55 Humboldt Anchor Tree Farm, east of McKinleyville, near Fieldbrook. Comment
  RSA202442  Acaena novae-zelandiae D. W. Cooper, F. Advisor 1966-10-10 s.n. Humboldt ridge just SE of Forest Service Nursery, 2 miles SE of Crannell, 4 miles E of Hwy 101 Comment
  HSC2783  Acer circinatum L. J. Coombes 1964-5-16 33 Humboldt Camp Bowers, 3 mi. SE of Blue Lake 1524 Comment
  RSA183640  Acer circinatum D. E. Anderson 1965-5-8 3627 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along Highway 299 Comment
  UC902130  Acer circinatum Joseph P. Tracy 1949-8-4 18424 Humboldt near Mud Springs; Trinity Summit 1371 Comment
  SEINET200861 Image available Acer glabrum Joseph P. Tracy 1933-7-11 12707 Humboldt North Coast Ranges, Grouse Mountain 1520 Comment
  HSC24100  Acer glabrum var. torreyi J. O. Sawyer 1971-6-14 2380 Humboldt E Fork of Horse Linto Creek at Grizzly Camp. 1341 Comment
  CAS-BOT-BC331591  Acer macrophyllum Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CHSC32850  Achillea millefolium L. L. Anderson 1981-4-25 6 Humboldt Ca. 0.5 mi e of ocean (Moonstone Beach) w of Hwy 101, 11.5 mi n of Arcata. 0 Comment
  HSC4549  Achillea millefolium D. B. Bader 1963-2-17 27 Humboldt Second of the Clam Beach Lagoons W of Hwy. 101 Comment
  HSC53792  Achillea millefolium Griswold, Butler 1979-7-10 6204 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  HSC90231  Achillea millefolium L. Watson, J. Meninga Aug 1990 1 Humboldt Near Manilla. Mad River Slough and Dunes; 20 ft. N of parking lot, W of trail Comment
  HSC102055  Achlys californica M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 960 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  POM118513  Achlys californica Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1225749  Achlys californica Joseph P. Tracy 1946-6-23 17594 Humboldt Kneeland Prairie 762 Comment
  HSC48482  Achlys triphylla Brad Klipfel 1974-7-23 466 Humboldt Horse Mtn. area Comment
  SEINET201041  Achnatherum occidentale subsp. californicum J. P. Tracy, HE Parks 1934-6-27 11078 Humboldt Grouse Mtn N Coast Range 1433 Comment
  UCSB16556  Acmispon americanus Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC44755  Acmispon micranthus Maralyn O'Meara 1972-6-8 84 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  SDSU4308  Acmispon parviflorus D. F. Howe 1962-5-22 3307 Humboldt 0.7 miles east of Orick on Bald Mt. road. 396 Comment
  HSC98330  Acmispon wrangelianus A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek Jct., 100 yards W of Lindsey Creek on N bank. Comment
  HSC99546  Aconitum columbianum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 211 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-BC391409  Aconitum columbianum subsp. columbianum L. B. Kildale 1930-7-11 10205 Humboldt Snow Camp, head of Redwood Creek Comment
  HSC55866  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-7-25 10888 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC56084  Actaea rubra G. L. Clifton, Griswold 1979-7-31 11772 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC76049  Actaea rubra Overton, Butler 1979-8-2 12542 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  JEPS60374  Actaea rubra W. L. Jepson 1902-7-16 2055 Humboldt Trinity Summit 2133 Comment
  RSA416321  Adenocaulon bicolor Thekla Mohr 1918-07 s.n. Humboldt Eel River. Comment
  HSC97952  Adenocaulon bicolor Cara Witte 2007-6-21 326 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  UC492186  Adenostoma fasciculatum W. L. Jepson and J. P. Tracy 1932-8-7 10337 Humboldt along rd. between Harris and Chamise Mt. (at point 3 mi. n. of s. boundary of Humboldt Co.); North Coast Ranges 762 Comment
Read comments
Oct 24 2018
  CAS-BOT-BC62298  Adiantum aleuticum Mrs. H. C. Cantelow 1935-6-13 935 Humboldt E. of Arcata Comment
  HSC955  Adiantum aleuticum J. Wendell Howe 1930-9-9 Humboldt 3 mi. SW of Fieldbrook Comment
  UC275411  Adiantum aleuticum Joseph P. Tracy 1925-11-25 7324 Humboldt near s fork Trinity River Valley; Northern Coast Ranges 182 Comment
  UCD137170  Adiantum aleuticum Lincoln Constance 1934-6-1 776 Humboldt Bull Creek Region, South Fork Eel River. Comment
  UC503063  Adiantum jordanii Joseph P. Tracy 1932-4-24 9812 Humboldt between Miranda and Redway (S Fork Eel River); North Coast Ranges 91 Comment
  CAS-BOT-BC202609  Aesculus californica Joseph P. Tracy 1937-6-20 15357 Humboldt Bear River, ten miles up stream from the mouth 152 Comment
  CAS-BOT-BC30380  Ageratina occidentalis Doris K. Kildale 1926-8-29 2592 Humboldt Van Duzen River, near Strong's Station Comment
  RSA183633  Ageratina occidentalis D. E. Anderson 1965-9-5 4094 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  HSC4597  Agoseris grandiflora John Johnson 1962-8-17 1004 Humboldt Samoa Peninsula; Lanpher Ranch Comment
  UC582750  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1930-6-21 8768 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UCD128605  Agoseris heterophylla K. Esau 1934-5-6 s.n. Humboldt above Fort Seward. 457 Comment
  HSC98543  Agoseris heterophylla Cara Witte 2008-6-7 684 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  RSA167315  Agoseris heterophylla Joseph P. Tracy 1950-7-6 19006 Humboldt On the Albee Road 2 miles south of Burr Valley 1159 Comment
  UC1239509  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 1/2 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  HSC73664  Agoseris retrorsa M. A. Baker 1980-7-15 2967 Humboldt Near Whiting Ridge. 1341 Comment
  CAS-BOT-BC384739  Agrostemma githago Doris K. Kildale 1926-5-31 2018 Humboldt Miranda on South Fork of Eel River Comment
  SEINET200944  Agrostis Joseph P. Tracy 1927-7-17 8271 Humboldt Three cabins On lower western foothills of Chaparral Mountain. 457 Comment
  RSA129700  Agrostis capillaris H. S. Yates 5685 Humboldt Near Bayside 9 Comment
  UCD51855  Agrostis capillaris A. H. Murphy 1947-7-25 s.n. Humboldt Highland Bent, Cottral Ranch. Comment
  UCD51860  Agrostis capillaris A. H. Murphy 1947-8-5 s.n. Humboldt McComb Ranch, Bald Hills, 7-8 miles SE of Orick. Comment
  CAS-BOT-BC127456  Agrostis densiflora Joseph P. Tracy 1927-6-26 8216 Humboldt Stone Lagoon. 6 Comment
  CAS-BOT-BC127287  Agrostis exarata Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River at Orleans. Comment
  CAS-BOT-BC127288  Agrostis exarata Joseph P. Tracy 1918-7-5 5016 Humboldt Northern Coast Ranges. White Thorn Valley. 304 Comment
  CAS-BOT-BC127295  Agrostis exarata 1933-7-20 12809 Humboldt Along Mad River, near Blue Lake. 15 Comment
  POM160889  Agrostis exarata Joseph P. Tracy 1918-7-21 5085 Humboldt Around Humboldt Bay. Humboldt Hill 91 Comment
  UC1145153  Agrostis exarata Joseph P. Tracy 1936-6-28 15030 Humboldt in bog Bald Mountain, Lake Prairie 1066 Comment
  UC556417  Agrostis exarata Palmer Stockwell 1934-7-13 64 Humboldt Clam Beach Comment
  SEINET10789958  Agrostis exarata Joseph P. Tracy 1900-9-2 Tracy 933 Humboldt Immediate vicinity of Eureka. Bed of frog pond. 0 Comment
  HSC74861  Agrostis hallii Gail Newton 1981-8-5 2363 Humboldt Near Bug Creek, E Fork. 820 Comment
  RSA10065  Agrostis hallii Joseph P. Tracy 1929-7-4 8610 Humboldt French Camp Ridge 1067 Comment
  UCD52704  Agrostis hallii Ray Evans 1956-7-19 s.n. Humboldt Bear River Ridge, 9 miles west of Ferndale. Comment
  RSA10064  Agrostis humilis Joseph P. Tracy 1930-7-16 8989 Humboldt South Fork Mountain: at McKay Camp 1677 Comment
  CAS-BOT-BC139452  Agrostis hyemalis Doris K. Kildale 1926-9-5 2624 Humboldt Lasseck's Peaks. Near Canal Camp. 1661 Comment
  UCD53046  Agrostis microphylla Joseph P. Tracy 1938-7-11 16050 Humboldt near Samoa, on Humboldt Bay. 6 Comment
  UC526880  Agrostis oregonensis Joseph P. Tracy 1927-8-22 8344 Humboldt bog in cold wet meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  POM207266  Agrostis pallens Davy Blasdale 1899-05 5723 Humboldt Supply Creek Comment
  RSA10063  Agrostis pallens Joseph P. Tracy 1932-7-17 10661 Humboldt Trinity summit. Corral Prairie 1524 Comment
  HSC99594  Agrostis stolonifera K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 262 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCD53462  Agrostis stolonifera P. B. Kennedy 1928-7-16 s.n. Humboldt Sea Cliffe, near Trinidad. Comment
  UC526778  Agrostis variabilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8948 Humboldt along summit South Fork Mountain (near Blake lookout); Northern Coast Ranges, along summit South Fork Mountain 1737 Comment
  JEPS75413  Agrostis viridis W. L. Jepson 1932-7-26 16410 Humboldt Bull Creek 106 Comment
  HSC8852  Aira caryophyllea True Hoyle 1967-9-9 27667 Humboldt 2 mi. NW of the junction of the Butler Valley and Fickle Hill roads 457 Comment
  UC1103299  Aira caryophyllea Joseph P. Tracy 1919-5-31 5142 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC726346  Aira caryophyllea A. A. Heller 1923-7-8 13765 Humboldt 10 mi s Dyerville; Humboldt Camp Comment
  UC526676  Aira praecox Joseph P. Tracy 1925-8-30 7252 Humboldt Freshwater Lagoon North Coast Ranges 60 Comment
  UC672868  Alisma plantago-aquatica Joseph P. Tracy 1933-8-22 12984 Humboldt 1 mi w Loleta; Mouth of Eel River 6 Comment
  CAS-BOT-BC460754  Allium amplectens Carl B. Wolf 1937-6-14 8810 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  SEINET12045750  Allium amplectens C. C. Harris, Harris, S. K. 1936-1 645 Humboldt at point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River 710 Comment
  UC3112 Image available Allium bolanderi Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge; ; Humboldt Co. Comment
  HSC103075  Allium campanulatum Sydney Carothers 2014-6-11 15 Humboldt Six Rivers Nat'l Forest, Lassics Botanical Area, upper north face of Mt. Lassic 1777 Comment
  HSC2957  Allium campanulatum J. P. Tracy 1932-7-12 10479 Humboldt Head of Brett Hole, Trinity Summit 1829 Comment
  HSC32148  Allium campanulatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5599 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  SEINET199678  Allium campanulatum J. P. Tracy 1933-7-25 12863 Humboldt Grouse Mtn 1524 Comment
  HSC77956  Allium falcifolium D. K. Imper 1982-7-13 1489 Humboldt Near Chaparral Mtn. 1386 Comment
  CAS-BOT-BC239  Allium grandisceptrum Mrs. W. W. Hutchinson 1924-6-1 s.n. (Herbarium A. Davidson no. 3595 ) Humboldt Garberville Comment
  CAS-BOT-BC476601  Allium unifolium Doris K. Kildale 1927-5-15 3296 Humboldt Petrolia. Matlole River Valley Comment
  HSC47291  Allium unifolium Dale McNeal 1978-6-3 2160 Humboldt 4.3 mi. S of Bridgeville on rd. to Blocksburg Comment
  RSA20861  Allium unifolium Carl B. Wolf 1937-8-11 8900 Humboldt Fleener Creek, 0.5 mile south of Centerville. 46 Comment
  UC666890  Allium validum Joseph P. Tracy 1930-7-16 8922 Humboldt meadow at McKay's Camp South Fork Mountain, McKay's Camp 1676 Comment
  RSA778733  Alnus rubra Lyman Benson 1929-7-19 1878 Humboldt Mouth of Matole [Mattole] River. Comment
  UCSC000176  Alnus rubra G. T. Nordstrom 1933-6-30 1425 Humboldt 1 mile N.N.E. of Orick 3 Comment
  CAS-BOT-BC169378  Alnus viridis subsp. sinuata Joseph P. Tracy 1930-7-16 9080 Humboldt Cool damp place along stream. S Fork Mountain, near McKay Camp 1676 Comment
  POM89806  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit. Comment
  UC1225944  Alnus viridis subsp. sinuata Joseph P. Tracy 1947-8-24 17913 Humboldt near Box Camp; Trinity Summit 1524 Comment
  RSA129283  Alopecurus geniculatus H. L. Person 1932-5-11 19411 Humboldt Near Arcata 0 Comment
  UC677600  Alopecurus geniculatus A. A. Beetle with Stebbins and Tracy 1942-6-2 3458 Humboldt s. of Eureka (Loleta Swamp); Loleta Swamp Comment
  CHSC69496  Ambrosia chamissonis Vernon Oswald; Lowell Ahart 1997-9-4 8844 Humboldt Big Lagoon County Park at the southwest edge of Big Lagoon. North Coast Region, Coastal Strand. 3 Comment
  HSC18514  Amelanchier alnifolia var. semiintegrifolia Francis Winter 1960-4-24 Humboldt 8 mi. NE of Redwood Creek Ranch 610 Comment
  HSC55636  Amelanchier pallida Overton, Butler 1979-7-24 9662 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  CDA1717  Ammophila arenaria T. C. Fuller 1961-9-28 7062 Humboldt 0.2 miles south of Samoa. 0 Comment
  SEINET7296676 Image available Ammophila arenaria Richard W. Pohl 1987-1 15639 Humboldt Eureka; Beach and salt marsh 2 Comment
  HSC3537  Amsinckia intermedia Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  UC176970 Image available Amsinckia intermedia Joseph P. Tracy 1912-7-31 3894 Humboldt Burr Valley on nw slope Buck Mountain; North Coast Ranges; Burr Valley, NW slope of Buck Mt., Humboldt Co. 1066 Comment
  RSA0089915  Amsinckia menziesii H. E. Parks 1933-03 4282 Humboldt Trinidad. Comment
  UC545822  Amsinckia menziesii var. menziesii H. E. Parks March, 1933 4282 Humboldt Trinidad Comment
  HSC12709  Anagallis arvensis Jana Kattenhorn 1970-10-28 147 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC26883  Anagallis arvensis Clifton Raymond Chesbrough 1973-6-19 90 Humboldt 1/2 mile S of Trinidad along the coast Comment
  SEINET11993512  Anagallis arvensis F. H. Utech 1986-1 86 -406 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  CAS-BOT-BC45131  Anaphalis margaritacea Alice Eastwood 1923-8-14 12304 Humboldt Samoa Comment
  CAS-BOT-BC45142  Anaphalis margaritacea Annie M. Alexander; Louise Kellogg 1948-9-3 5572 Humboldt Trinity and Klamath Rivers Comment
  SEINET8734419 Image available Anaphalis margaritacea H. E. Parks, S. T. Parks 1943-1 24237 Humboldt Stone Lagoon Comment
  CAS-BOT-BC391774  Anemone deltoidea Doris K. Kildale 1926-6-6 2121 Humboldt Trail to Gold Bluffs Comment
  HSC56099  Anemone deltoidea G. L. Clifton 1979-7-31 11817 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC391779  Anemone deltoidea D. E. Breedlove 1962-6-8 3066 Humboldt Along U.S. Highway 101, 8 miles north of Orick 60 Comment
  HSC63009  Anemone deltoidea M. Dean Griswold Jr. 1979-4-21 24 Humboldt N side of Hwy. 36 Comment
  UC634952  Anemone deltoidea H. L. Mason 1929-5-9 5280 Humboldt Bull Creek Flat Comment
  CHSC31275  Anemone oregana Mark Stopher 1980-5-20 71 Humboldt Along the Van Duzen River near Rte 36. Comment
  UC1196196  Anemone oregana Joseph P. Tracy 1938-6-13 15899 Humboldt Horse Mtn; in serpentine belt 1432 Comment
  JEPS12247  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka 6 Comment
  UC582653  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  UC582655  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  JEPS16075  Angelica genuflexa W. L. Jepson 1936-8-17 17915 Humboldt Fields Landing, Stills Ranch Fields Landing; , Stills Ranch Comment
  UC582660  Angelica genuflexa Joseph P. Tracy 1937-9-30 15690 Humboldt Dow's Prairie 60 Comment
  UC673053  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka, near south city limits Eureka 6 Comment
  JEPS143  Angelica hendersonii W. L. Jepson 1936-8-18 17945 Humboldt 1/2 mi s of Singley Creek Comment
  HSC71328  Angelica lucida J. M. DiTomaso 1981-6-16 2013 Humboldt Hwy. 101, 1 mi. S of Samoa Blvd., Arcata. Comment
  UC126727  Angelica lucida John Matthiesen 1908-8-17 Humboldt Loleta Comment
  UC642351  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  HSC39723  Angelica tomentosa Thomas W. Nelson 1976-10-25 3276 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC642266  Angelica tomentosa Joseph P. Tracy 1939-8-16 16410 Humboldt Horse Mountain 1432 Comment
  SD58268  Angelica tomentosa var. hendersonii W. L. Jepson 1936-8-18 17945 Humboldt 1/2 mile south of Singley Creek, Sand dune by the sea Comment
  UC169316  Anisocarpus madioides Joseph P. Tracy 1908-6 2878 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UCD128893  Anisocarpus madioides K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  UCD56135  Anthoxanthum aristatum W. R. Powell 1960-7-9 s.n. Humboldt 10 miles SE of Orick (direct line), Dolason Hill Prairie of the Bald Hills, along Orick-Weitchpec Road. 731 Comment
  HSC38077  Anthoxanthum occidentale Thomas Nelson, James Nelson 1976-5-30 2630 Humboldt McKeown Ranch, N of Dinsmore Comment
  UCD85343  Anthoxanthum occidentale Linda M. Barker 1976-2-22 1312 Humboldt Coast forest and dunes 3 miles west of Arcata. Comment
  HSC40341  Anthoxanthum odoratum Linda M. Barker 1976-4-30 1402 Humboldt 3 mi. W of Arcata Comment
  RSA10084  Anthoxanthum odoratum Joseph P. Tracy 1925-7-5 7164 Humboldt High Prairie, on Bald Mountain. 1067 Comment
  SEINET198594  Anthoxanthum odoratum H. E. Parks, ST Parks 1952-4-30 24444 Humboldt Spruce Cove Trinidad Comment
  JEPS83360  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-26 354 Humboldt 9.1 mi s Kneeland Road junction with Mountain View Road (on Kneeland Road) Comment
  RSA21323  Apocynum pumilum var. rhomboideum C. B. Wolf 1937-8-13 s.n. Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC31555  Aquilegia formosa Glenn McGourty 1974-5-11 45 Humboldt Along Maple Creek Rd. Comment
  HSC45442  Aquilegia formosa var. formosa M. Alcasas 1978-5-6 62 Humboldt Maple Creek Rd. 1.5 mi. W of Mad River crossing 161 Comment
  HSC99008  Aquilegia formosa var. formosa Cara Witte 2008-7-16 907 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  HSC57633  Arabis breweri var. breweri G. L. Clifton, Griswold 1979-7-25 10787 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC76348  Arabis glabra Denis Kearns 1981-7-22 520 Humboldt Near Whiteys Peak 1487 Comment
  HSC48750  Arabis holboellii var. retrofracta Brad Klipfel 1973-6-10 76 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74547  Arabis platysperma M. A. Baker 1980-7-24 3211 Humboldt Near Orleans Mtn. 1625 Comment
  HSC30336  Arbutus menziesii Dale R. Gradek 1974-5-22 92 Humboldt 1 mi. E of Hwy. 101 on North Bank Rd. 30 Comment
  HSC49044  Arbutus menziesii Patricia Shesgreen 1978-5-6 69 Humboldt Arthur W. Way Memorial Park campground. 100 yds. N of Mattole River. Comment
  LA41458  Arbutus menziesii Carl Epling; 1933-8-24 sn Humboldt Richardson Grove Comment
  UC314642  Arctostaphylos X media Joseph P. Tracy 1923-3-31 6171 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  RSA20914  Arctostaphylos canescens var. candidissima C. B. Wolf 1937-8-13 9229 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  BLMAR112  Arctostaphylos columbiana Jennifer Anthony-Wheeler 1995-1-19 112 Humboldt King range, growing in open meadow/clearing for new KR admin site 283 Comment
Read comments
Apr 5 2016
  CAS-BOT-BC23765  Arctostaphylos columbiana Joseph P. Tracy 1947-5-24 17693 Humboldt Big Lagoon, Devil's Canyon 152 Comment
  CAS-BOT-BC23769  Arctostaphylos columbiana Joseph P. Tracy 1932-2-28 9772 Humboldt Around Humboldt Bay 60 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-BC23790  Arctostaphylos columbiana Gary D. Wallace 1974-12-22 1345 Humboldt Near coast N of Trinidad at the edge of the W part of Big Lagoon 6 Comment
  HSC68214  Arctostaphylos columbiana J. P. Smith, J. O. Sawyer 1975-4-6 8052 Humboldt 3 mi. N of Whitehorn, across from the CA Dept. of Forestry Fire Station Comment
  HSC7722  Arctostaphylos columbiana H. E. Parks Feb 1934 4774 Humboldt Spruce Cove, Trinidad Comment
  RSA622692  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27674 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
  RSA622696  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27680 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
  UC1174844  Arctostaphylos columbiana P. C. Everett and E. K. Balls 1959-10-26 23975 Humboldt 4 mi se from Honeydew (along old Coast Road to Ettersburg) 457 Comment
  UCD50772  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1170 Humboldt 21.4 miles east of U.S. Highway 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  RSA81544  Arctostaphylos columbiana var. tracyi E. K. Balls, Percy C. Everett, B. K. Balls 1953-10-11 18626 Humboldt 0.1 mi. N of Humbolt-Mendecino Co. line, Hwy 101. 168 Comment
  HSC7629  Arctostaphylos glandulosa Unknown Humboldt 1 mi. W of Queens Rd. 610 Comment
  UC1222639  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1950-6-15 18795 Humboldt 7 mi n Harris; Mail Ridge Comment
  RSA632800  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27771 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA632803  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27761 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  CHSC110739  Arctostaphylos manzanita subsp. glaucescens Dean Wm. Taylor 2011-5-4 21119 Humboldt Larabee Valley, along Highway 36 about 1 mile east of the eastern end of the valley at the bridge for the Little Van Duzen River. 701 Comment
  CAS-BOT-BC24363  Arctostaphylos manzanita subsp. manzanita R. N. Raynor 1935-3-1 s.n. Humboldt Fort Seward. Comment
  UC1193138  Arctostaphylos manzanita subsp. manzanita R. H. Neuns 1950-10-10 138 Humboldt 3 mi n Thorne; Quad 29C3 304 Comment
  RSA46694  Arctostaphylos nevadensis Doris K. Kildale 1938-6-5 15390 Humboldt Horse Mountain Comment
  CAS-BOT-BC40062  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC46635  Arctostaphylos patula Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC70990  Arctostaphylos patula Gail Newton 1980-7-15 1577 Humboldt Near Sims Mtn. 1311 Comment
  JEPS38932  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8136 Humboldt Horse Mountain 1432 Comment
  RSA134148  Arctostaphylos stanfordiana P. C. Everett, E. K. Balls 1959-10-24 23954 Humboldt 6.8 mi. SW from Siskiyou-Humboldt Co. Line, Somesbar to Orleans. 152 Comment
  HSC39960  Arctostaphylos uva-ursi Linda M. Barker 1976-4-13 1379 Humboldt 3 mi. W of Arcata Comment
  UC1225934  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17500 Humboldt Eureka 45 Comment
  RSA337436  Arctostaphylos uva-ursi var. coactilis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35148 Humboldt Samoa Dunes. 3 Comment
  UC1576922  Arctotheca calendula T. C. Fuller and G. D. Barbe 1989-6-8 4321 Humboldt on, 3.4 mi w of Main Street, in Larry Pries dairy Centerville Beach Road; Ferndale Comment
  UCD16179  Arctotheca calendula J. DiTomaso 2000-8-14 s.n. Humboldt West of town of Ferndale, East of Centerville Beach, along Centerville Rd., at Pries Dairy, near Russ Creek. 200 Comment
  HSC48067  Armeria maritima subsp. californica Thomas W. Nelson 1978-4-23 3879 Humboldt N of Samoa Comment
  HSC59197  Armeria maritima subsp. californica Terry Roth 1979-5-24 78 Humboldt Samoa Dunes near the U.S. Coast Guard Station 5 Comment
  HSC33417  Arnica cernua Thomas W. Nelson 1974-5-30 1345 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  UC1199254  Arnica cernua Joseph P. Tracy 1926-6-20 7625 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  JEPS20978  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt near Corral Prairie; Trinity Summit 1524 Comment
  SEINET11837693  Arnica latifolia J. P. Tracy 1942-1 17236 Humboldt Trinity Summit, near Box Camp 1524 Comment
  HSC8990  Arrhenatherum elatius J. P. Tracy 1927-9-25 8369 Humboldt Eureka, alongside railroad track 0 Comment
  UC1103325  Arrhenatherum elatius Joseph P. Tracy 1927-9-25 8369 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC180348  Arrhenatherum elatius Joseph P. Tracy 1913-6-10 4084 Humboldt near Bridgeville (Northern Coast Ranges, Rogers Ranch); Northern Coast Ranges, Rogers Ranch 243 Comment
  HSC67041  Artemisia douglasiana J. P. Smith 1971-10-9 5032 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC535739  Artemisia dracunculus Eleanor Armstrong 1190 Humboldt Richardson Grove Comment
  JEPS37044  Artemisia dracunculus Milo S. Baker 1923-7-19 86 Humboldt near Carlotta (bed of Van Dusen River); Van Dusen River Comment
  HSC4741  Artemisia pycnocephala J. W. Johnson 1961-9-4 1098 Humboldt Christenson Farm, Samoa Peninsula, Arcata. Comment
  SD42225  Artemisia pycnocephala Carl B. Wolf 1940-11-10 3868 Humboldt Coast south of Mendocino, 1.8 miles north of where road turns inland to Petrolia 24 Comment
  UC154232  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region 0 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
  SEINET3369095 Image available Asarum caudatum Richard R. Halse 2011-3-25 8163 Humboldt Along U.Sl. Hwy 101 ca 2.8 miles S of Stafford, near Exit 674. 74 Comment
  UC1103506  Asarum caudatum Joseph P. Tracy 1949-6-6 18304 Humboldt Happy Camp Mountain (in Trinity Summit Range, northeast of Hawkins Bar) 1280 Comment
  UC1198117  Asarum caudatum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3618 Humboldt near Hydesville 60 Comment
  HSC98022  Asclepias speciosa Cara Witte 2007-7-3 406 Humboldt White Oak Opening. 1242 Comment
  HSC99110  Aspidotis densa Cara Witte 2008-6-13 715 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1382 Comment
  RSA44512  Aspidotis densa Henry M. Pollard 1948-7-29 1 Humboldt Woodson Mine near Orleans 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
  RSA47181  Aster radulinus Doris K. Kildale 1925-8-21 1312 Humboldt Yager Comment
  UC502991 Image available Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten & Pierce Ranch) 762 Comment
  UC1199092  Astragalus pycnostachyus var. pycnostachyus Joseph P. Tracy 1930-7-21 8891 Humboldt 3 mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, s Cape Mendocino 3 Comment
  CAS-BOT-BC193134  Astragalus rattanii var. rattanii Volney Rattan 1883-6-13 s.n. Humboldt Bug Creek, a tributary of Mad Riv. Comment
  CAS-BOT-BC193139  Astragalus rattanii var. rattanii M. Louise Hutchinson 1913-4-1 s.n. Humboldt Eureka Comment
  UC175639  Astragalus rattanii var. rattanii Joseph P. Tracy 1913-5-4 4051 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC179942  Astragalus umbraticus Joseph P. Tracy 1914-9-6 4598 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  CAS-BOT-BC200852  Astragalus umbraticus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC103946  Astragalus umbraticus T. Salzberg 1996-7-26 186 Humboldt Six Rivers National Forest; Forest Service Rd. 11N16, which is a tributary of Slate Creek Road. 1293 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
  SD90176  Athyrium filix-femina var. cyclosorum Benjamin C. Stone 1952-6-25 128 Humboldt 15 miles south of Klamath on Highway 101 14 Comment
  UC162361  Atriplex gmelinii var. gmelinii Joseph P. Tracy 1911-11-5 3555 Humboldt near mouth Mad River Slough (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, Mad River Slough 0 Comment
  HSC69756  Atriplex prostrata Thomas W. Nelson 1977-9-22 3751 Humboldt Along E side of State Rte. 101, N of Eureka airport Comment
  RSA246922  Atriplex subspicata R. F. Thorne, P. Everett 1965-8-8 35275 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  UC526701  Avena fatua Joseph P. Tracy 1933-5-20 12229 Humboldt 3 mi s point of cape (sw slopes fronting ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  UC207825  Avena sativa Joseph P. Tracy 1916-5-31 4703 Humboldt Stitz Creek Northern Coast Ranges, Eel River (along river from South Fork to Scotia) 60 Comment
  UCD56463  Avena sativa Joseph P. Tracy 1951-5-26 19511 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC66230  Azolla filiculoides Robert F. Thorne; P. Everett 1965-8-9 35325 Humboldt Clam Beach County Park 3 Comment
  SEINET946131  Baccharis douglasii S. P. McLaughlin, Damien Ravetta 1991-1 6553 Humboldt Northwest end of Humboldt Bay, along Hwy 255 S of Arcata at Vance Road; Near jct. Hwy 101 and Elk River Road Comment
  RSA93204  Baccharis douglasii F. W. Peirson 1926-7-13 7061 Humboldt Mad River, vicinity of Blue Lake. Comment
  UC1119655  Baccharis glutinosa H. L. Person 1932-7-18 Humboldt Eureka Comment
  UC164794  Baccharis glutinosa J. P. Tracy 1900-9-3 937 Humboldt immediate vicinity of Eureka 0 Comment
  UC249846  Baccharis glutinosa Joseph P. Tracy 1924-8-10 6810 Humboldt Van Duzen River, Blue Slide 91 Comment
  HSC29875  Baccharis pilularis subsp. consanguinea Thomas W. Nelson 1971-11-11 601 Humboldt Foot of Murray Rd., McKinleyville. Comment
  HSC39776  Baccharis pilularis subsp. pilularis Peter Sorensen 1976-7-12 Humboldt King Salmon Comment
  HSC5115  Baccharis pilularis subsp. pilularis Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  UC1198286  Barbarea orthoceras Joseph P. Tracy 1906-5-6 2443 Humboldt hillside in Wolverton Gulch, near Hydesville 60 Comment
  CDA38657  Bellardia trixago B. Villegas/D. Juliano 2010-6-17 PDR# 1535021 -A Humboldt Alderpoint: Garberville - Alderpoint Rd. 0 Comment
  CDA18249  Bellis perennis G. D. Barbe, T. C. Fuller 1974-6-18 1873 Humboldt North Coast Ranges; Fern Canyon, Prairie Creek Redwood State Park, 7.1 mi W of US Hwy 101 on Fern Canyon Rd., 5 mi S of Klamath River. 0 Comment
Read comments
Feb 22 2012
  UC1199304  Bellis perennis Joseph P. Tracy 1924-3-9 6617 Humboldt Kneeland Prairie, near Lawrence Creek Northern Coast Ranges 762 Comment
  UC581761  Bellis perennis Joseph P. Tracy 1937-6-20 15345 Humboldt 10 mi upstream from mouth Bear River 152 Comment
  HSC89490  Bellis perennis P. A. Daly 1986-2-28 64 Humboldt Trinidad Head, along trail 61 Comment
  HSC100357  Bensoniella oregana T. Jimerson, S. L. Birch 1980-7-11 975 Humboldt Snow Camp Mountain, Rooster Rock. 1280 Comment
Read comments
Nov 6 2018
  UC1198850  Bensoniella oregona Mrs. R. D. Douglas 1920-6-26 Humboldt Murphy Meadow; on Bald Mt., Murphy Meadow 1066 Comment
  HSC28089  Berberis nervosa J. D. Ackerman 1973-4-29 77 Humboldt 2 mi. NE of Kneeland Comment
  OBI16932  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Crk. Below Orleans 8 mi Comment
  SEINET11861631  Bidens frondosa J. P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Creek below Orleans 8 mi 122 Comment
  RSA246926  Blechnum spicant R. F. Thorne, Percy C. Everett 1965-8-9 35289 Humboldt Big Lagoon. 3 Comment
  HSC99625  Blechnum spicant H. S. Logsdon 1964-5-10 14 Humboldt 4 mi. N of Orick at Boye's Prairie Comment
  HSC31637  Borago officinalis Glenn McGourty 1974-6-1 85 Humboldt Comment
  HSC76260  Boykinia occidentalis Teresa Prendusi 1981-7-7 119 Humboldt Near Slate Creek Butte. 1158 Comment
  HSC96467  Boykinia occidentalis Gordon Leppig 1997-6-19 464 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC99841  Boykinia occidentalis C. B. Wolf 1927-8-22 798 Humboldt Big Lagoon Comment
  UC1198853  Boykinia occidentalis Joseph P. Tracy 1927-6-19 8191 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  CAS-BOT-BC420256  Boykinia occidentalis Henry M. Pollard 1948-7-23 s.n. Humboldt Perch Creek canyon, near Orleans Comment
  JEPS49650  Boykinia occidentalis W. L. Jepson 1902-7-11 2012 Humboldt walls South Fork Trinity River (river bank, Martin's Ranch); walls of the South Fork Trinity River, river bank Comment
  HSC37961  Brassica rapa Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  JEPS93974  Briza maxima Vernon Oswald 1998-4-16 8911 Humboldt Clam Beach County Park on Hwy. 101 between Arcata and Trinidad (near parking lot); Clam Beach Co. Park 6 Comment
  HSC33759  Briza minor Margaret Weatherwax 1975-5-24 159 Humboldt Dunes off Samoa Blvd. across from boat landing Comment
  HSC79436  Briza minor Kenneth Clark 1980-6-14 664 Humboldt Shelter Cove, lower alluvial terrace of Dead Man's Gulch 30 Comment
  CAS-BOT-BC484216  Brodiaea elegans subsp. elegans Doris K. Kildale 1927-7-1 3618 Humboldt Alton Hill 30 Comment
  HSC35816  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1920 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  JEPS7624  Brodiaea stellaris Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3406 Humboldt along state Hwy 36 5 mi e Bridgeville Comment
  JEPS516  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1936-5-30 14837 Humboldt near Samoa; Humboldt Bay 6 Comment
  HSC78981  Brodiaea terrestris subsp. terrestris L. P. Janeway 1984-5-16 794 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd. 0.25 mi. N of the boat ramp 3 Comment
  CAS-BOT-BC144346  Bromus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  HSC9215  Bromus carinatus T. L. Ackerman 1964-5-15 45 Humboldt Dunes west from Fairhaven sign Comment
  UC1103280  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-18 5326 Humboldt 5 mi above mouth of South Fork (along Eel River from South Fork to Scotia); Northern Coast Ranges, Eel River 60 Comment
  UC249867  Bromus carinatus var. carinatus Joseph P. Tracy 1923-6-18 6282 Humboldt Northern Coast Ranges, Bear River Ridge Bear River Ridge; Northern Coast Ranges, Bear River Ridge 304 Comment
  UC37673  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  UC526734  Bromus carinatus var. carinatus Joseph P. Tracy 1932-7-12 10449 Humboldt lamath Mountains, Trinity Summit, at Corral Prairie Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  UC34027  Bromus catharticus Henry Melde 1902-2-8 Humboldt Eureka Comment
  SEINET200637 Image available Bromus commutatus Joseph P. Tracy 1917-6-24 4824 Humboldt Holmes Flat 61 Comment
  UC188939  Bromus commutatus J. Burtt Davy 1899-6-16 5555 Humboldt North Coast Ranges, Scotia Scotia; North Coast Ranges, Scotia Comment
  CHSC10108  Bromus diandrus J. W. Johnson 1962-4-18 1268 Humboldt Arcata. Along the lower lane below the W.M. Lanphere home, Samoa Peninsula. Comment
  RSA126899  Bromus diandrus H. S. Yates 1936-6-19 5705 Humboldt Lower N.W. slope of Buck Mt. 793 Comment
  HSC37852  Bromus hordeaceus Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  UC1103363  Bromus hordeaceus Joseph P. Tracy 1933-6-11 12556 Humboldt 4 mi s of Dyerville (South Fork Eel River); North Coast Ranges, South Fork Eel River 60 Comment
  CAS-BOT-BC162446  Bromus laevipes L. R. Abrams 1918-6-16 7143 Humboldt Willow Creek. Comment
  POM126124  Bromus marginatus Joseph P. Tracy 1923-6-19 s.n. Humboldt Wilder Ridge Comment
  RSA34280  Bromus maritimus L. Larsen 1935-5-22 s.n. Humboldt Somoa [Samoa] Comment
  HSC72631  Bromus vulgaris J. P. Smith 1977-7-3 9252 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  UC1131315  Bromus vulgaris H. S. Yates 1936-6-23 5872 Humboldt 3 mi se of Scotia Comment
  UC526735  Bromus vulgaris Joseph P. Tracy 1926-5-2 7427 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC40044  Cacaliopsis nardosmia Thomas W. Nelson, Jane P. Nelson 1976-7-1 2897 Humboldt Along ridge N of Bear Creek 1463 Comment
  POM312414  Cakile edentula Malcolm A. Nobs, Walter Wisura 1949-8-11 1337 Humboldt Eastern shore of Stone Lagoon. Comment
  UCR121764  Cakile maritima George K. Helmkamp, E. A. Helmkamp 2001-7-8 7025 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC47488  Cakile maritima Sheila Logan 1978-4-7 7 Humboldt Samoa sand dunes, 0.25 mi. N of US Coast Guard Station, Samoa Peninsula Comment
  HSC17632  Calandrinia ciliata J. W. Johnson 1962-4-10 1240 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  UC1198378  Calandrinia ciliata Joseph P. Tracy 1909-5-30 2979 Humboldt along railroad in Ryan's Slough; Northern Coast Region, Region about Humboldt Bay 0 Comment
  HSC100604  Calandrinia menziesii Carl C. Marshall Jun 1887 472 Humboldt Throughout Humboldt County. Comment
  UCR199655  Callitriche heterophylla subsp. bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35345 Humboldt Northwestern; Outer North Coastal region, along Hwy 101 about 3 miles N of Eureka 2 Comment
  UC144080  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1909-5-23 2974 Humboldt 4 mi se Eureka (at Connick Claim) 0 Comment
  HSC12858  Callitropsis nootkatensis M. Athey, D. La Conte 1970-11-28 4 Humboldt HSU campus Comment
  HSC102506  Calocedrus decurrens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1491 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC76318  Calocedrus decurrens Teresa Prendusi 1981-7-9 242 Humboldt Near Slate Creek Butte 1122 Comment
  CAS-BOT-BC80383  Calocedrus decurrens H. E. McMinn 1922-7-1 278 Humboldt 1 mile east of Dinsmore Comment
  UC1197682  Calochortus coeruleus Joseph P. Tracy 1932-7-15 10582 Humboldt e of Corral Prairie; Trinity Summit 1828 Comment
  HSC15332  Calochortus tolmiei W. K. Parks Jul 1933 1194 Humboldt S Fork Mtn. 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
  HSC32949  Calochortus tolmiei Thomas W. Nelson, James Nelson 1973-5-28 961 Humboldt McKeown Ranch N of Dinsmore 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
  UC176353  Calochortus tolmiei Joseph P. Tracy 1913-6-22 4263 Humboldt opposite Buck Mountain (Dinsmore's Ranch); North Coast Ranges, Valley of Van Duzen River 762 Comment
  UC667122  Calochortus vestae Joseph P. Tracy 1930-6-15 8760 Humboldt Dobbyn Creek 152 Comment
  RSA167194  Calycadenia ciliosa Joseph P. Tracy 1948-9-20 18220 Humboldt Hoopa Valley 91 Comment
  UC1222961  Calycadenia fremontii Joseph P. Tracy 1948-9-20 18220 Humboldt Hoopa Valley 91 Comment
  UC129390  Calycadenia fremontii Harley P. Chandler 1901-6-1 1533 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC405439  Calycadenia fremontii Chesnut and Drew 1888-8-1 Humboldt Lionse Creek Comment
  UC750741  Calycadenia fremontii Henry M. Pollard 1945-8-31 Humboldt Orleans to Somes Bar Comment
  UC1196472  Calypso bulbosa Joseph P. Tracy 1923-4-15 6192 1/2 Humboldt Northern Coast Ranges, Redwood Creek, at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC1196476  Calypso bulbosa Joseph P. Tracy 1949-6-6 18303 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC70228  Calyptridium monospermum M. A. Baker 1980-6-8 1891 Humboldt Near Buck Flat. 1554 Comment
  HSC70959  Calyptridium monospermum Thomas W. Nelson 1977-6-15 3434 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  HSC32545  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson 1973-7-10 1030 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  HSC40013  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Jane Nelson 1976-7-1 2914 Humboldt N side of Mt. Lassic (Signal Peak) 1738 Comment
  UC162767  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1911-7-6 3342 Humboldt mountain slopes along road between Three Creeks and Mouth Willow Creek; Northern Coast Ranges, btwn Three Creeks and Willow Creek 762 Comment
  SEINET12343673  Calystegia purpurata J. P. Tracy 1950-6-8 18769 Humboldt Near Petrolia, 2 mi down river Comment
  HSC6367  Calystegia soldanella J. R. Woodside 1963-5-11 6 Humboldt 1.25 mi. N of Fairhaven Comment
  SD38599  Calystegia soldanella Edith A. Purer 1932-7-27 4140 Humboldt Samoa Comment
  CHSC68781  Calystegia soldanella Vernon Oswald 1997-6-5 8533 Humboldt North Spit of Humboldt Bay, the west side of New Navy Base Rd. 1.0 mi south of Hwy 255. 6 Comment
  HSC16446  Camissonia cheiranthifolia L. H. Myers 1963-5-13 18 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  CAS-BOT-BC160247  Camissoniopsis cheiranthifolia subsp. cheiranthifolia L. R. Abrams 1916-7-18 6020 Humboldt Arcata toTrinidad Comment
  CHSC52938  Camissoniopsis cheiranthifolia subsp. cheiranthifolia L. P. Janeway 1984-4-11 730 Humboldt On the North Spit of Humboldt Bay; northwest of the boat ramp and north of the Coast Guard Sta. 4 Comment
  CHSC68787  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Vernon Oswald 1997-6-5 8532 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.0 mi south of Hwy. 255. 6 Comment
  SEINET10905895  Campanula prenanthoides Aven Nelson, Ruth A. Nelson 1977-7-30 Nelson 3662 Humboldt In dry oak woodland beside State Route 36 about 1 mile east of Dinsmore. T1N R5E SEC.3 732 Comment
  SEINET10972390  Campanula prenanthoides Tracy 1908-6-27 TRACY 2859 Humboldt Valley of Van Duzen River; opposite Buck Mountain, in woods. 762 Comment
  POM193020  Campanula scouleri M. H. Manning 1901-07 s.n. Humboldt Near Hupa Comment
  SDSU1307  Campanula scouleri D. F. Howe 1964-8-7 3944 Humboldt 8.2 miles from #96 on Mill Creek road, Hoopa Valley. 1067 Comment
  RSA46687  Campanula scouleri Doris K. Kildale 1937-7-18 15143 Humboldt Horse Mt. Comment
  SEINET10463695  Campanula scouleri Baker 1979-6-29 Baker 956 Humboldt Hopkins Ck. T9N R5E MIDDLE SECT. 3. 760 Comment
  SEINET10463754  Campanula scouleri Baker 1979-6-29 Baker 956 Humboldt Hopkin's Creek. T9N R5E Sec.3 760 Comment
  CAS-BOT-BC37427  Cardamine californica Doris Kildale 1931-5-10 10559 Humboldt Snow Camp. Comment
  CAS-BOT-BC37430  Cardamine californica Parks; Tracy 1931-3-26 0916 Humboldt Lower Van Duzen River. 60 Comment
  HSC8597  Cardamine californica D. K. Smith 1968-3-3 12 Humboldt On West End Rd., ca. 3 mi. from Hwy. 299 Comment
  POM311254  Cardamine californica var. integrifolia Keith C. Hughes 1961-2-3 326 Humboldt Richardson Grove State Park; Mt. Range: Coast Ranges; Drainage Area: Pacific Slope. 137 Comment
  UC673286  Cardamine oligosperma Lincoln Constance and Reed C. Rollins 1942-5-11 2871 Humboldt three mi e East Fork Willow Creek; North Coast Ranges, e of East Fork Willow Creek Comment
  CAS-BOT-BC37891  Cardamine oligosperma Doris K. Kildale 1927-3-20 2916 Humboldt Philipsville. Smith Fork of Eel River. Comment
  HSC6853  Cardaria draba J. P. Tracy 1933-5-19 12201 Humboldt Eel River, Alton to Fortuna 15 Comment
  CAS-BOT-BC384761  Cardionema ramosissimum Milo S. Baker 1927-8-16 2445 b Humboldt Samoa Comment
  CAS-BOT-BC18516  Carex abrupta Joseph Prince Tracy 1932-7-14 10546 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  CAS-BOT-BC17982  Carex aquatilis Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC18077  Carex athrostachya Alice Eastwood; John Thomas Howell 1937-6-23 4801 Humboldt Little Van Duzen River. Comment
  POM247170  Carex athrostachya Joseph P. Tracy 1934-7-18 13426 Humboldt Grouse Mountain. 1524 Comment
  HSC44018  Carex athrostachya Thomas W. Nelson, Jane P. Nelson 1977-6-19 3504 Humboldt Above Alder Springs 1585 Comment
  RSA167283  Carex athrostachya Joseph P. Tracy 1950-7-6 18990 Humboldt Burr Valley, NW slope of Buck Mtn 1067 Comment
  HSC44057  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1977-7-1 3559 Humboldt Along Blanket Creek 1494 Comment
  UC562712  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt on ridge 2 mi sw top; Salmon Summit 1767 Comment
  CDA38908  Carex buxbaumii Gordon Leppig 1997-6-19 448 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  CAS-BOT-BC34278  Carex concinnoides Doris K. Kildale 1928-5-1 5988 Humboldt MacLellan Mountain near Bridgeville. 914 Comment
  CAS-BOT-BC34437  Carex deflexa var. boottii Joseph Prince Tracy 1935-6-2 13921 Humboldt Big Lagoon. 30 Comment
  SEINET7556710 Image available Carex densa Andrew L. Hipp 1999-5-31 458 Humboldt Alder Point, Alder Pt Rd ca 5 mi W of Alder Pt. 503 Comment
  UC50823  Carex deweyana subsp. leptopoda J. P. Tracy 1900-5-28 808 Humboldt immediate vicinity of Eureka Comment
  UC302100  Carex deweyana subsp. leptopoda Joseph P. Tracy 1914-6-28 4515 Humboldt Carlotta Northern Coast Ranges 60 Comment
  CAS-BOT-BC20079  Carex echinata Joseph Prince Tracy 1933-7-25 12845 Humboldt Northern Coast Ranges. Grouse Mountain. 1524 Comment
  CHSC85975  Carex echinata subsp. phyllomanica L. P. Janeway 2003-7-30 7943 Humboldt High North Coast Ranges. 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
  CHSC98332  Carex feta Thomas W. Nelson; Jane P. Nelson 1982-7-11 7115 Humboldt North Coast Ranges. Along road from Hindley's cabin on McKeown's ranch to Anderson's ford at Mad River. T02N R05E S28 and 29. Comment
  CAS-BOT-BC21280  Carex fracta Joseph Prince Tracy 1937-7-25 15542 Humboldt Trinity Summit. Head of Hors-Linto Creek. 1371 Comment
  RSA167280  Carex fracta Joseph P. Tracy 1950-7-2 18963 Humboldt Happy Camp Mountain (in Trinity Summit Range, 6 miles NE of Hawkins Bar.) Wet place at Fern Spring 1280 Comment
  CAS-BOT-BC20876  Carex globosa Joseph Prince Tracy 1927-7-4 8242 Humboldt North Coast Ranges. Blue Slide, on Van Duzen River. 91 Comment
  UC197229  Carex gynodynama Joseph P. Tracy 1906-4-29 2430 Humboldt Northern Coast Region, south slope of Humboldt Hill. Comment
  UC2020226  Carex gynodynama Joseph P. Tracy 1906-6-24 2508 Humboldt Northern Coast Region, south slope of Humboldt Hill. Comment
  CAS-BOT-BC22312  Carex harfordii Joseph Prince Tracy 1935-5-24 13811 Humboldt Eureka. 60 Comment
  JEPS80025  Carex hendersonii Joseph P. Tracy 1905-6-25 2202 Humboldt at Eureka Northern Coast Ranges, Eureka 0 Comment
  HSC44527  Carex hoodii Brad Klipfel 1973-7-1 135 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CHSC40132  Carex laeviculmis L. P. Janeway 1983-5-15 296 Humboldt Bend of Mad R on s side, near Fish Hatchery Rd and across from Blue Lake. 24 Comment
  CHSC90285  Carex laeviculmis Thomas W. Nelson; Jane P. Nelson 1987-6-11 8579 A Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  SEINET7563579 Image available Carex laeviculmis L. P. Janeway 2003-7-30 7938 Humboldt High North Coast Ranges, Cold Spring, 0.6 km north of the top of Titlow Hill. Grouse Mountain Quad. 1454 Comment
  UC194814  Carex laeviculmis Joseph P. Tracy 1914-7-4 4524 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC562251  Carex lenticularis var. impressa Joseph P. Tracy 1932-7-14 10555 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC604160  Carex lenticularis var. limnophila David D. Keck 1938-8-5 4774 Humboldt Big Lagoon Comment
  RSA167279  Carex lenticularis var. lipocarpa Joseph P. Tracy 1950-8-7 19266 Humboldt Meadow at Box Camp, Trinity Summit. 1524 Comment
  RSA122772  Carex lyngbyei H. S. Yates 1936-6-23 s.n. Humboldt 1 mile west of Bayside; sea level 0 Comment
  CAS-BOT-BC539840  Carex mendocinensis H. N. Bolander; Kellogg, M. D.; & Co. 1967-6-1 s.n. Humboldt Red Mt. Comment
  RSA0014502  Carex mendocinensis Joseph P. Tracy 1924-6-15 6697 Humboldt Near Ruby Creek, on the Willow Creek Highway. 610 Comment
  HSC70470  Carex microptera Gail Newton 1980-7-20 1639 Humboldt Near Bell Swamps 1426 Comment
  HSC82414  Carex microptera Thomas W. Nelson 1979-7-11 5033 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  CAS-BOT-BC32129  Carex multicaulis Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  UC249512  Carex multicaulis Joseph P. Tracy 1922-4-30 6006 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1103091  Carex multicostata Joseph P. Tracy 1933-7-25 12847 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC77271  Carex nebrascensis L. P. Janeway 1983-6-22 323 Humboldt Above Klamath River, near Aikens Creek 91 Comment
  HSC40257  Carex obnupta Linda M. Barker 1976-4-30 1421 Humboldt 3 mi. W of Arcata Comment
  HSC76804  Carex obnupta L. P. Janeway 1982-8-7 113 Humboldt Dry Lagoon 3 Comment
  HSC7062  Carex obnupta J. W. Johnson 1961-4-19 1248 Humboldt Arcata, along Miller Lane, Miller Farm, Samoa Peninsula Comment
  UC562319  Carex obnupta Joseph P. Tracy 1934-7-13 13381 Humboldt North Coast Ranges, Arcata Bottom Arcata Bottom; North Coast Ranges, Arcata Bottom 15 Comment
  HSC70166  Carex ovalis Thomas W. Nelson 1978-6-10 4418 Humboldt Behind the Seventh-Day Adventist Church on F St., Eureka Comment
  UC1152077  Carex pachycarpa Joseph P. Tracy 1950-7-25 19064 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC119221  Carex pachystachya Harold Ernest Parks; Joseph Prince Tracy 1935-6-16 11271 Humboldt Buck Mt. Lower NW slope. 792 Comment
  HSC45390  Carex pachystachya Thomas W. Nelson, Jane P. Nelson 1978-7-2 4406 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 Comment
  HSC98947  Carex pachystachya Cara Witte 2008-7-2 810 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC1115800  Carex pachystachya Joseph P. Tracy 1939-6-9 16324 Humboldt Lake Prairie Bald Mountain 1066 Comment
  UC562663  Carex pachystachya Joseph P. Tracy 1927-5-29 8077 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC562665  Carex pachystachya Joseph P. Tracy 1932-6-19 10242 Humboldt opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 762 Comment
  JEPS79855  Carex pansa Joseph P. Tracy 1935-7-18 14104 Humboldt next to Table Bluff (around Humboldt Bay); around Humboldt Bay 3 Comment
  RSA550443  Carex preslii R. Tallent 1987-8-11 893 Humboldt Six Rivers National Forest: Roadside S of Horse Mtn. 1450 Comment
  JEPS79869  Carex rossii Joseph P. Tracy 1904-5-1 2041 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC28310  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-17 10675 Humboldt Trinity Summit, Wet meadow heading into Devil's Hole. 1828 Comment
  CAS-BOT-BC117539  Carex serratodens Joseph Prince Tracy 1926-6-27 7692 Humboldt Horse Mountain. Comment
  CHSC115860  Carex subbracteata Peter F. Zika 2011-7-3 25493 Humboldt Titlow Hill Road, 3 road miles SE of Route 299 at Berry Summit, 1 air km SW of Horse Mountain, Outer North Coast Ranges. 1190 Comment
  CAS-BOT-BC116906  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-23 4822 Humboldt Bridgeville Comment
  HSC44059  Carex subfusca Thomas W. Nelson 1976-7-9 3004 Humboldt Along creek S of Mount Lassic (Signal Peak). 1707 Comment
  HSC49014  Carex tumulicola M. A. Baker 1979-5-25 756 Humboldt Comment
  RSA91642  Carex tumulicola Alice Eastwood, John Thomas Howell 1937-6-23 4758 Humboldt Dinsmore s. Comment
  UC194813  Carex tumulicola Joseph P. Tracy 1906-6-24 2507 Humboldt near, Humboldt Hill, region about Humboldt Bay Fields Landing; Northern Coast Region 0 Comment
  UC562650  Carex unilateralis Joseph P. Tracy 1930-6-15 8756 Humboldt Dobbyn Creek 152 Comment
  CHSC107143  Carex utriculata R. E. Brainerd 2009-7-23 1564 Humboldt North Coast Range, South Fork Mountain; 19.6 miles west-northwest of Hayfork. UTM Zone 10 453477E 4494945N. 1661 Comment
  HSC2869  Carpobrotus chilensis D. E. Anderson 1961-9-2 1767 Humboldt 3 mi. S of Cape Mendocino Comment
  RSA246760  Carpobrotus chilensis R. F. Thorne, P. Everett 1965-8-9 35306 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC281885  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie on ridge 1 mile N above Bull Creek, ca 2 miles W of Dyerville Comment
  HSC98626  Castilleja affinis subsp. affinis Cara Witte 2007-6-4 185 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  JEPS55949  Castilleja affinis subsp. litoralis T. I. Chuang and L. R. Heckard 1968-7-3 6456 Humboldt Table Bluff Comment
  UC1011939  Castilleja affinis subsp. litoralis F. W. Pennell and J. P. Tracy 1940-7-6 26082 Humboldt w of Lolita; Table Bluff 1 Comment
  UC1196854  Castilleja affinis subsp. litoralis Joseph P. Tracy 1920-7-4 5342 Humboldt mouth of Little River; Northern Coast Ranges 15 Comment
  UC147876  Castilleja affinis subsp. litoralis J. P. Tracy 1900-6-25 864 Humboldt immediate vicinity Eureka 0 Comment
  HSC38194  Castilleja attenuata Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  SBBG54572  Castilleja exserta subsp. latifolia F. W. Pennell, J. Tracy 1940-7-6 26085 Humboldt back of beach, Table Bluff, W of Loleta Comment
  HSC102069  Castilleja miniata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 971 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC56065  Castilleja miniata G. L. Clifton, Griswold 1979-7-31 11713 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC70512  Castilleja miniata Gail Newton 1980-7-20 1615 Humboldt Near Bell Swamps 1426 Comment
  HSC102518  Castilleja miniata subsp. miniata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1505 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC902253  Castilleja pruinosa Joseph P. Tracy 1949-6-25 18341 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  JEPS82239  Ceanothus Roger Raiche 1983-7-18 30529 Humboldt 0.6 mi n intersection of Shelter Cove Rd (King Peak Rd); King Range Comment
  UC1502114  Ceanothus R. Sutherland 1976-5-11 7 .11.76 Humboldt just outside Sec 32 Pt. Delgado Quad.; Pt. Delgada Quad. 609 Comment
  HSC41255  Ceanothus arcuatus Brad Klipfel 1974-6-25 445 Humboldt Horse Mtn. Comment
  HSC44451  Ceanothus arcuatus Brad Klipfel 1975-5-30 653 Humboldt Horse Mtn. Comment
  OBI35865  Ceanothus cuneatus var. cuneatus David J. Keil 1983-7-2 17328 Humboldt Horse Mtn Summit SW of Willow crk Comment
  JEPS42320  Ceanothus foliosus W. L. Jepson 1902-8-10 2171 Humboldt Comptche to Low Gap 762 Comment
  UC275318  Ceanothus foliosus Joseph P. Tracy 1923-6-20 6322 Humboldt Chamisal Mountain, near Shelter Cove 304 Comment
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Aug 4 2016
  CAS-BOT-BC50048  Ceanothus incanus Doris K. Kildale 1926-4-2 1715 Humboldt Briceland Bridge 1/2 miles West of Garberville 114 Comment
  POM118617  Ceanothus incanus Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  HSC48784  Ceanothus integerrimus Brad Klipfel 1975-6-17 662 Humboldt Along Titlow Hill Rd. Comment
  UC33627  Ceanothus integerrimus Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  UCR270274  Ceanothus integerrimus John F. Emmel 2003-7-30 1800 Humboldt near southeast boundary of Redwood National Park, Bald Hills Road, 19.5 road miles SE of Hwy 101 960 Comment
  HSC43180  Ceanothus parryi R. Sutherland 1975-6-19 1 .19675 Humboldt Van Anken Creek at Mattole River Comment
  UCR131692  Ceanothus parryi C. B. Wolf 1941-7-27 11086 Humboldt North Coast Range, 5.8 miles west of Maple Creek on road to Freshwater from Korbel 610 Comment
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Mar 29 2012
  HSC18323  Ceanothus pumilus P. W. Shields May 1955 Humboldt 7 mi W of Hoopa Comment
  HSC41241  Ceanothus pumilus Brad Klipfel 1974-5-27 380 Humboldt Horse Mtn. Comment
  UC1094482  Ceanothus pumilus R. E. Nelson 1955-5-14 162 Humboldt about 5 mi w Miranda; Quad. 29-C-2, w of Miranda 762 Comment
  CAS-BOT-BC52980  Ceanothus thyrsiflorus Doris K. Kildale 1928-5-19 5150 Humboldt Chalk Mountain Comment
  HSC18330  Ceanothus thyrsiflorus H. E. Parks Mar 1934 4828 Humboldt Spruce Cove, Trinidad Comment
  RSA600896  Ceanothus thyrsiflorus Louis C. Wheeler 1959-8-1 7618 Humboldt Queens Peak Mine. Comment
  UCD112727  Ceanothus thyrsiflorus K. Twitchell 1996-5-11 25 Humboldt Crannell, along old Highway 101 at Moonstone beach access. 36 Comment
  SBBG28513  Ceanothus thyrsiflorus var. thyrsiflorus D. Kildale 1926-3-20 Humboldt Big Lagoon Comment
  SBBG4552  Ceanothus thyrsiflorus var. thyrsiflorus M. J. Cody 1938-7-14 Humboldt Trinidad Comment
  HSC43224  Ceanothus velutinus R. Sutherland 1975-12-6 2 .61275 Humboldt 305 Comment
  UC702533  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road, 5 mi n and 2 mi e Boynton Prairie; n and e of Boynton Prairie 630 Comment
  UC1199120  Centaurea X moncktonii Joseph P. Tracy 1933-8-22 12973 Humboldt at Eureka Eureka 60 Comment
  UC906721  Centaurea benedicta Harold E. Parks and Joseph P. Tracy 1942-7-2 11580 Humboldt Dinsmore's 762 Comment
  CAS-BOT-BC272108  Centaurea cyanus Henry M. Pollard 1948-7-24 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC272107  Centaurea cyanus Doris K. Kildale 1925-6-27 758 Humboldt Yager Creek, near mouth Comment
  UC1198629  Centaurium muehlenbergii Joseph P. Tracy 1942-7-18 17283 Humboldt Garberville 152 Comment
  POM318967  Centaurium muehlenbergii Patricia Wilder 1968-8-22 4430 Humboldt Bull Creek Flat, Humboldt Redwoods State Park, north of Weott and west of U. S. 101; Coast Ranges, South Fork of Eel River drainage area. 61 Comment
  UC1198630  Centaurium muehlenbergii Joseph P. Tracy 5208 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 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
  UC203958  Centunculus minimus Joseph P. Tracy 1918-7-5 5019 Humboldt Northern Coast Ranges, White Thorn Valley White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  UC14950  Cephalanthera austiniae P. E. Goddard 1901-7-30 122 Humboldt Box Camp, Trinity Summit Trail Comment
  UC1196468  Cephalanthera austiniae Joseph P. Tracy 1926-6-6 7581 Humboldt near summit on rd. w. from Hoopa to Bair's (Hoopa Mt.); Northern Coast Ranges, Hoopa Mt. 1066 Comment
  HSC97943  Cerastium glomeratum Cara Witte 2007-6-28 384 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  HSC100414  Cerastium nutans Carl C. Marshall Jun 1887 446 Humboldt Throughout Humboldt County. Comment
  UC666857  Cercocarpus ledifolius var. ledifolius Joseph P. Tracy 1935-7-30 14362 Humboldt Salmon Summit, about 2 mi sw of the top of the mountain Salmon Summit 1767 Comment
  UC582765  Chaenactis douglasii var. douglasii Joseph P. Tracy 1932-7-12 10462 Humboldt head of Brett Hole; Trinity Summit, Brett Hole 1828 Comment
  NY19046  Chamaecyparis lawsoniana J. P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon 762.0 Comment
  RSA0038422  Chamaecyparis lawsoniana James R. Shevock 1972-3-26 1469 Humboldt Along Highway 299. 365 Comment
  UC1198973  Chamaesyce serpyllifolia Joseph P. Tracy 1920-8-15 5382 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  HSC54583  Chamerion angustifolium subsp. circumvagum Overton, Butler 1979-7-24 9635 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC55146  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-8-1 12051 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC55194  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-8-2 12274 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1197021  Chamerion angustifolium subsp. circumvagum Mrs. Laura P. Mahan 1928-6-24 Humboldt 3 mi se Scotia; Eel River 30 Comment
  RSA44511  Cheilanthes gracillima Henry M. Pollard 1947-9-1 s.n. Humboldt Peak of Somes Mountain, near Orleans 1524 Comment
  UC154039  Chimaphila umbellata Joseph P. Tracy 1908-6 2879 Humboldt opposite Buck Mt.; Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  UCD117387  Chimaphila umbellata H. P. Olmo 1928-6-10 s.n. Humboldt Wooley Creek. Comment
  RSA467024  Chimaphila umbellata subsp. occidentalis M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  CAS-BOT-BC236914  Chloropyron maritimum subsp. palustre Eva Buxton 2002-8-1 2001 Humboldt Salt marsh off King Salmon Ave. near P.G.E. Eureka Comment
  CAS-BOT-BC236919  Chloropyron maritimum subsp. palustre Malcom A. Nobs; S. Galen Smith 1949-8-3 1200 Humboldt Bordering Humboldt Bay, ca. 2 miles north of Eureka Comment
  CAS-BOT-BC36486  Chrysolepis chrysophylla Joseph P. Tracy 1940-8-25 16715 Humboldt Bald Mountain 975 Comment
  HSC70637  Chrysolepis chrysophylla R. York 1980-5-18 597 Humboldt Near Black Mtn. 792 Comment
  HSC8064  Chrysolepis sempervirens J. P. Tracy, H. E. Parks 1941-8-28 11541 Humboldt South Fork; Blake Lookout Area 1768 Comment
  UC1197341  Cicuta douglasii Joseph P. Tracy 1937-8-12 15662 Humboldt Snow Camp 1402 Comment
  HSC96494  Cicuta douglasii Gordon Leppig 1997-8-13 637 Humboldt Big Lagoon County Park 3 Comment
  UC642314  Cicuta douglasii Joseph P. Tracy 1938-9-25 16169 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  UCD127289  Cicuta douglasii R. Tofsrud; J. M. Tucker 1948-9-4 1860 Humboldt near mouth of Salmon Creek, east side of Highway 101, around 8 miles south of Eureka. Comment
  SEINET201029 Image available Cinna latifolia J. P. Tracy 1919-9-18 5255 Humboldt Trinity Summit 1524 Comment
  UC552729  Cinna latifolia Joseph P. Tracy 1935-7-25 14244 Humboldt Lower end Brett Hole Trinity Summit; , Lower end of Brett Hole 1584 Comment
  NY370205  Cirsium arvense L. Abrams 1916-7-11 6034 Humboldt Mouth of Grizzly Creek on Van Duzon River 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
  UC176341  Cirsium occidentale var. candidissimum Joseph P. Tracy 1912-7-26 3854 1/2 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  CDA19782  Cirsium occidentale var. candidissimum J. Dolf 2001-9-6 PDR 069832 Humboldt Northern California; Vicinity of Honeydew. 0 Comment
  RSA0070852  Cirsium occidentale var. candidissimum C. B. Wolf 1934-6-30 5839 Humboldt 7 miles from Shelter Cove on road to Briceland. 152 Comment
  UC1223058  Cirsium occidentale var. candidissimum Joseph P. Tracy 1950-6-15 18779 Humboldt 5 mi n of Harris (on old Overland Road); Mail Ridge Comment
  HSC35706  Cirsium occidentale var. venustum Thomas W. Nelson, B. Reinhardt 1975-7-30 2122 Humboldt Beside private road to Pilot Rock Comment
  CAS-BOT-BC288715  Cirsium remotifolium L. R. Abrams 1916-7-18 6081 Humboldt Arcata to Trinidad Comment
  UC582537  Cirsium remotifolium var. rivulare Joseph P. Tracy 1934-7-6 13659 Humboldt Kneeland Prairie 762 Comment
  HSC74679  Cirsium vulgare Gail Newton 1981-8-6 2397 Humboldt Near Humbug Creek 1256 Comment
  UCD130811  Cirsium vulgare Linda M. Barker 1976-8-24 1684 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC160975  Clarkia amoena subsp. amoena Joseph P. Tracy 1909-7-31 3026 Humboldt Kneeland Prairie 762 Comment
  JEPS43552  Clarkia amoena subsp. huntiana W. L. Jepson 1902-7-30 2130 Humboldt Three Creeks to Redwood Creek (summit of ridge) 1219 Comment
  UC20318  Clarkia amoena subsp. whitneyi H. N. Bolander 1866-1 6534 Humboldt Shelter Cove; ; Shelter Cove, Humboldt Co. Comment
  UC594157  Clarkia purpurea S. K. Harris, J. P. Tracy 1936-6-10 3277 Humboldt near mouth South Fork Trinity River (hills w of river) 640 Comment
  UCSB23037  Clarkia purpurea subsp. quadrivulnera Tracy, Joseph 1936-6-10 Humboldt south fork of Trinity river; mountain slopes west of its mouth 457 Comment
  UC183596  Claytonia exigua subsp. glauca Joseph P. Tracy 1913-5-4 4049 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UCD100846  Claytonia rubra subsp. depressa Linda M. Barker 1976-2-22 1318 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC443729  Claytonia rubra subsp. rubra Doris Kildale 1931-5-10 10551 Humboldt Snow Camp Comment
  HSC39620  Claytonia rubra subsp. rubra Thomas W. Nelson 1976-6-15 2723 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC17722  Claytonia sibirica D. E. Anderson 1963-9-29 2835 Humboldt Fish Lake Comment
  HSC31553  Claytonia sibirica Glenn McGourty 1974-5-11 43 Humboldt Along Maple Creek Rd. Comment
  SD88533  Claytonia sibirica Darley F. Howe 1972-5-7 Humboldt Trinidad Comment
  UC177197  Claytonia sibirica Joseph P. Tracy 1912-5-11 3608 Humboldt near Hydesville; Northern Coast Region 30 Comment
  RSA137345  Claytonia sibirica I. L. Wiggins 1957-6-20 14129 Humboldt East side of highway, Trinidad Comment
  SEINET11942405  Claytonia sibirica Unknown 1933-1 3407 Humboldt Redwood Forest, Van Duzen River 6 mi W of Bridgeville Comment
  SFV1197  Claytonia sibirica J. Turner, F. M. Ball 1962-7-9 s. n. Humboldt Beside scenic Redwood Highway about 2 miles south of junction with freeway, 40 miles north of Mendocino-Humboldt county line. Comment
  UC672986  Claytonia sibirica Joseph P. Tracy 1930-7-16 8921 Humboldt McKay Camp; South Fork Mountain 1676 Comment
  UC1173720  Clematis lasiantha Joseph P. Tracy 1939-4-29 16229 Humboldt bluffs opposite mouth of Hors-Linto Creek (Trinity R.); Trinity R. 152 Comment
  CAS-BOT-BC92594  Clematis ligusticifolia Henry M. Pollard 1948-7-23 s.n. Humboldt Near Orleans. Comment
  UC204646  Clematis ligusticifolia Joseph P. Tracy 1918-7-6 5053 Humboldt near Humboldt-Mendocino Co. line S. Fork Eel R.; Northern Coast Ranges, S. Fork Eel R. 152 Comment
  HSC100554  Clintonia andrewsiana Carl C. Marshall May 1885 69 Humboldt Redwood forests. Comment
  SEINET12047067  Clintonia andrewsiana F. H. Utech, Utech, C. L. 1972-1 72 -610 Humboldt Arcata, Humboldt State University Forest, W of campus 198 Comment
  UC179954  Clintonia andrewsiana Joseph P. Tracy 1914-5-17 4473 Humboldt between Ryans Slough and Freshwater Creek (at the Cumens Claim, region about Humboldt Bay); Northern Coast Region 304 Comment
  UC582461  Collinsia grandiflora Joseph P. Tracy 1927-6-12 8159 Humboldt Horse Mtn; Northern Coast Ranges; Horse Mtn 1219 Comment
  UC1222820  Collinsia linearis Joseph P. Tracy 1950-7-2 18969 Humboldt on Ridge 2 mi e of Grove's Prairie (Trinity Summit, Happy Camp Mountain); Trinity Summit, Happy Camp Mountain 1371 Comment
  HSC32323  Collinsia parviflora D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5664 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC41811  Collinsia parviflora Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  JEPS26114  Collinsia parviflora Peter H. Raven with R. Snow 1958-7-20 13634 Humboldt 2.8 mi s jct of Titlow Hill and Friday Ridge rds (near Grouse Mtn) Comment
  JEPS6219  Collinsia parviflora Joseph P. Tracy 1933-6-13 12567 Humboldt w Hoopa (near summit on rd from Hoopa w to Bair's); Hoopa Mtn 1066 Comment
  HSC100912  Collinsia torreyi Carl C. Marshall Jun 1886 301 Humboldt Trinity Summit. Comment
  JEPS71016  Collomia grandiflora Lincoln Constance 1934-6-12 863 Humboldt n bank of river <at> Bull Cr. road; South Fork Eel River, Bull Creek Region, Dyerville Comment
  HSC45803  Collomia heterophylla J. P. Smith, J. O. Sawyer 1976-5-2 8629 Humboldt S. R. 96, 4.9 mi. N of its junction with S.R. 299 122 Comment
  SEINET12278705  Collomia tinctoria H. P. Chandler 1901-1 1475 Humboldt Klamath River 427 Comment
  JEPS26243  Collomia tracyi Joseph P. Tracy 1940-7-7 16670 Humboldt on rocky banks Grouse Mt. 1463 Comment
  UC978531  Collomia tracyi Joseph P. Tracy Jul 16 1930-Jul 19 1930 9046 Humboldt open glades along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC96489  Comarum palustre Gordon Leppig 1997-8-3 634 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  UC1222613  Conium maculatum Joseph P. Tracy 1950-6-8 18768 Humboldt near Petrolia (Hills between town and ocean) Comment
  HSC69531  Conium maculatum R. Kalal 1980-6-1 4 Humboldt 0.25 mi. N of Hwy. 299, at Essex turnoff 15 Comment
  HSC74155  Corallorhiza maculata Gail Newton 1980-7-20 1599 Humboldt Near Bell Swamps 1463 Comment
  JEPS8438  Corallorhiza mertensiana Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3408 Humboldt bog near High Prairie (ridge is long high ridge between Mad River and Redwood Creek); Bald Mountain ridge 1066 Comment
  HSC100233  Cordyline australis J. P. Smith 2010-5-29 12890 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  CAS-BOT-BC101147  Corethrogyne filaginifolia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  UC1223038  Corethrogyne filaginifolia Joseph P. Tracy 1948-8-22 18106 A Humboldt 5 mi e of town old Strong's District School House; Carlotta 60 Comment
  RSA275304  Corethrogyne filaginifolia var. californica J. P. Smith 1976-10-3 8993 Humboldt Samoa Peninsula, just west of drag strip Comment
  CAS-BOT-BC212012  Cornus nuttallii Doris K. Kildale 1926-7-25 2434 Humboldt Briceland Bridge, 1/2 west of Garberville 114 Comment
  OBI15277  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity river valley, at Willow crk Comment
  UC154072  Cornus nuttallii Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5635 Humboldt Hoopa Mt. North Coast Ranges, Hoopa Mt. Comment
  JEPS79877  Cornus sericea subsp. sericea Joseph P. Tracy 1927-11-6 8392 Humboldt along Yager Creek Carlotta; Northern Coast Ranges 60 Comment
  RSA113712  Cornus stolonifera Joseph P. Tracy 1948-9-2 18201 Humboldt Trinity Summitt. In fir woods, head of Little Hors-Linto Creek. 1372 Comment
  UC161494  Coronopus didymus Joseph P. Tracy 1901-7-31 1234 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC668054  Coronopus didymus Joseph P. Tracy 1938-7-15 16067 Humboldt Mouth of Eel River 3 Comment
  BLMAR230  Corylus cornuta subsp. californica Jennifer Anthony-Wheeler 1996-9-26 230 Humboldt King range, growing alng Bear creek between Wailaka & Nadelos campgrounds 548 Comment
  CAS-BOT-BC180301  Corylus cornuta subsp. californica Joseph P. Tracy 1931-8-16 9611 Humboldt near Briceland 152 Comment
  OBI36662  Corylus cornuta subsp. californica David J. Keil 1983-7-2 17312 Humboldt Ca. 4 mi SE of SR 299 along Titlow HIll Rd below Horse Mtn Summit Rd Comment
  LA204121  Corylus cornuta subsp. californica Carl Epling; William Robison 1935-7-25 sn Humboldt Devoy Grove of Redwoods Comment
  POM289379  Cotula coronopifolia Lyman Benson 1928-7-10 435 Humboldt Clam Beach, Trinidad. 15 Comment
  SEINET3817856  Cotula coronopifolia Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-9 15319 Humboldt Clam beach, 15 miles north Eureka Comment
  RSA246787  Cotula coronopifolia R. F. Thorne, Percy C. Everett 1965-8-8 35272 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  SFV18508  Cotula coronopifolia D. Graydon 2002-5-7 40 Humboldt Arcata. Path to McDaniel Slough. Along path to the Humboldt Bay. Comment
  HSC87175  Crassula aquatica K. Grenier 1988-11-16 291 Humboldt North Spit of Humboldt Bay Comment
  CAS-BOT-BC291493  Crepis capillaris Alice Eastwood 1921-7-21 10657 Humboldt Carlotta Comment
  RSA15572  Crepis capillaris C. B. Wolf 1927-8-28 1188 Humboldt Eureka Bay on Arcata road Comment
  HSC97632  Crepis pleurocarpa Cara Witte 2007-6-5 207 Humboldt Along Forest Service Road 4N32. Near Grouse Mountain 1413 Comment
  UC302296  Crepis pleurocarpa Joseph P. Tracy 1926-6-20 7621 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UCD130981  Crepis setosa Joseph P. Tracy 1948-9-20 18215 Humboldt Hoopa Valley. 106 Comment
  CDA2722  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-3 17446 Humboldt Northwest corner of overpass of Hwy 101 freeway to Garberville, 1 miles south of Fields Landing. 0 Comment
  HSC7973  Croton setiger H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  UC1239665  Cryptantha leiocarpa Joseph P. Tracy 1927-6-26 8212 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  UC1239649  Cryptantha torreyana Harold E. Parks and Joseph P. Tracy 1934-6-27 11058 Humboldt Grouse Mt. 1432 Comment
  HSC37074  Cymopterus terebinthinus var. californicus R. Sutherland 1976-4-24 Humboldt Garberville Triangle 518 Comment
  HSC74112  Cynoglossum grande R. York 1980-5-23 634 Humboldt Near Buck Mtn. 1524 Comment
  UCD60132  Cynosurus cristatus R. Tofsrud 1949-7-1 s. n. Humboldt South edge of Scotia. Comment
  BLMAR33  Cynosurus echinatus Brad Barr June, 1982 33 Humboldt King range, Lake ridge south facing slope Comment
  HSC47794  Cynosurus echinatus Michael A. Watkins 1978-6-10 14 Humboldt Arcata, E side of 7th St. overpass to Hwy. 101 Comment
  OBI22352  Cynosurus echinatus Joseph P. Tracy 1941-6-29 16920 Humboldt McClellan Mt Comment
  CAS-BOT-BC114699  Cyperus bipartitus Henry M. Pollard 1946-8-22 s.n. Humboldt Wallathrone Riffle, Klamath River. Orleans Region. Comment
  HSC23677  Cyperus eragrostis Tim Baroni 1971-7-5 91 Humboldt 8 mi. E of Petrolia Comment
  RSA53852  Cyperus eragrostis Henry M. Pollard 1945-8-27 s.n. Humboldt Pond near Harley Place, near Orleans. Comment
  UC1103632  Cyperus eragrostis Joseph P. Tracy 1934-7-14 13399 Humboldt along Mad R. near Blue Lake; Mad R. 15 Comment
  CAS-BOT-BC114060  Cyperus squarrosus Henry M. Pollard 1941-8-16 s.n. Humboldt Along river near Orleans. Comment
  UC1103636  Cyperus squarrosus Joseph P. Tracy 1921-10-9 5969 Humboldt Mad R. at Blue Lake; Northern Coast Ranges, Mad R. 30 Comment
  HSC98728  Cystopteris fragilis Cara Witte 2007-7-20 563 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  UC42487  Cystopteris fragilis C. C. Marshall 1888-1 Humboldt Comment
  HSC14670  Cytisus scoparius S. J. Hawks 1965-4-6 21 Humboldt Luffenholtz Beach Comment
  SEINET9350894  Cytisus scoparius Unknown 1963-6-2 2698 Humboldt Humboldt Comment
  HSC54606  Dactylis glomerata Overton, Butler 1979-7-24 9690 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1541567  Dactylis glomerata Harold E. Parks May 1933 4307 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  UC37938  Dactylis glomerata Joseph Burtt Davy and Walter C. Blasdale 1899-6-16 5557 Humboldt Scotia Comment
  UC1103261  Danthonia californica var. americana Joseph P. Tracy 1925-7-5 7161 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UCD61361  Danthonia unispicata R. Tofsrud 1948-9-3 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  UC1197351  Daucus pusillus J. P. Tracy 1899-7-22 275 Humboldt Eureka 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
  HSC24780  Delairea odorata Barbara Kelly 1971-11-15 230 Humboldt North Bank Rd. next to Hwy. 101, McKinleyville Comment
  HSC97517  Delphinium decorum Frances Reuss Harmon 2001-3-22 9 Humboldt Six Rivers National Forest, Grays Falls Campground Comment
  SEINET4465020 Image available Delphinium decorum H. E. Parks, J. P. Tracy 1930-1 789 Humboldt Laribee Valley 914 Comment
  CAS-BOT-BC9032  Delphinium decorum subsp. tracyi Doris K. Kildale 1928-5-19 5213 Humboldt Chalk Mountain Comment
  UC162789  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1908-6 2755 Humboldt nw slope Northern Coast Ranges, Buck Mountain 609 Comment
  UC1196329  Delphinium nudicaule Joseph P. Tracy 1933-7-11 12684 Humboldt Grouse Mountain Northern Coast Ranges 1524 Comment
  HSC34917  Delphinium trolliifolium Thomas W. Nelson, James Nelson 1975-5-24 1862 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1126089  Delphinium trolliifolium A. E. Wieslander 1931-5-21 210 Humboldt Kneeland China Flat Quadrangle Comment
  UC1196343  Delphinium trolliifolium Joseph P. Tracy 1908-6 2774 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  CAS-BOT-BC121972  Delphinium trolliifolium Lester Rowntree 1938-6-4 s.n. Humboldt Stone Lagoon, near Orick Comment
  RSA20944  Delphinium trolliifolium Carl B. Wolf 1937-6-19 8916 Humboldt N Coast Range, 3 miles NE of Little Van Duzen River on road to Dinsmores. 762 Comment
  SD58244  Delphinium trolliifolium W. L. Jepson 1934-5-6 16681 Humboldt Little Larrabee Creek Comment
  UC160932  Delphinium trolliifolium Joseph P. Tracy 1906-4-8 2400 Humboldt s side of bluff near Singley's Ferry; Northern Coast Ranges, Table Bluff 91 Comment
  HSC40248  Deschampsia cespitosa Linda M. Barker 1976-7-5 1645 Humboldt 3 mi. W of Arcata. Comment
  HSC9588  Deschampsia cespitosa J. A. Waller 1965-5-16 46 Humboldt Humboldt Bay. Comment
  UCR32148  Deschampsia cespitosa subsp. beringensis David J. Keil 1983-7-2 17301 Humboldt Humboldt Bay salt marsh at Arcata Corporation Yard [600 G St.] Comment
  UC922025  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1937-8-12 15642 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC192545  Deschampsia cespitosa subsp. holciformis J. B. Davy; W. C. Blasdale 1899-5-1 6214 Humboldt Eureka Comment
  RSA126949  Deschampsia danthonioides H. S. Yates 1936-6-17 5718 Humboldt Burr Valley; South Fork Pk. 1646 Comment
  CAS-BOT-BC201772  Deschampsia elongata W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  HSC9612  Deschampsia elongata E. W. Styskel 1964-5-10 86 Humboldt 1.5 mi. SE of Redcrest along Hwy. 101 Comment
  SEINET10524229  Deschampsia elongata Harold E. Parks Parks 3646 a Humboldt Big Lagoon. Comment
  CAS-BOT-BC402402  Dicentra formosa subsp. formosa Mrytle Paulson 1918-4-18 s.n. Humboldt Eureka Comment
  RSA433571  Dicentra formosa subsp. formosa Maude Minthorn s.n. Humboldt Ferndale. Comment
  HSC99853  Dicentra formosa subsp. oregana Gail Newton 1980-6-17 203 Humboldt Near Onion Mtn. 217 Comment
  HSC48823  Dicentra uniflora Brad Klipfel, J. O. Sawyer, J. P. Smith 1973-5-27 35 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  RSA92450  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC483666  Dichelostemma capitatum Doris K. Kildale 1928-5-6 5995 Humboldt Garberville, south fork of Eel River Comment
  HSC33055  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson 1974-5-7 1234 Humboldt Beside airstrip at Kneeland Prairie Comment
  HSC95583  Dichelostemma capitatum subsp. capitatum Andrea Pickart 2002-5-13 99 Humboldt Lamphere Dunes, Humboldt National Wildlife Refuge Comment
  UC30061  Dichelostemma ida-maia Harley P. Chandler May 1901 1254 Humboldt Redwood Belt North Coast Ranges 152 Comment
  JEPS5675  Dichelostemma ida-maia Lincoln Constance 1934-5-23 604 Humboldt above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  SD42568  Dichelostemma ida-maia Carl B. Wolf 1937-8-11 9146 Humboldt North Coast Range, 3 miles west of Little Van Duzen River, at summit of grade - Dinsmores to Bridgeville. 762 Comment
  UC1198185  Dichelostemma ida-maia Joseph P. Tracy 1934-7-22 13489 Humboldt road from Iaqua to Bridgeville (at crossing of North Yager Creek); North Yager Creek 396 Comment
  HSC60040  Dichelostemma multiflorum M. A. Baker 1977-6-6 373 Humboldt Hoopa Comment
  HSC103003  Digitalis purpurea J. P. Smith 2014-5-26 13842 Humboldt Along the Hammond Trail north of Murray Road in McKinleyville 30 Comment
  POM273545  Digitalis purpurea Lyman D. Benson 1929-7-19 1879 Humboldt Mouth of Matole [Mattole] River. Comment
  HSC26885  Digitaria sanguinalis Brad Klipfel 1973-7-24 222 Humboldt Mad River flood plain, N end of Carson RR Bridge. Comment
  CAS-BOT-BC153233  Diplacus kelloggii Dave Imper 1985-6-19 s.n. Humboldt Roadbed (10N01), 2 mi. west of Whitey's Peak 1066 Comment
  CAS-BOT-BC153326  Diplacus layneae Henry M. Pollard 1943-8-1 s.n. Humboldt Near Orleans Comment
  HSC49807  Dipsacus fullonum R. York 1979-5-23 314 Humboldt Along shore of Humboldt Bay Comment
  UC666969  Disporum hookeri Joseph P. Tracy 1938-6-13 15898 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC208662  Distichlis spicata David D. Keck 1938-8-5 4769 Humboldt Big Lagoon Comment
  UCD64617  Distichlis spicata var. stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-3 1178 Humboldt Around Fields Landing. Comment
  POM126114  Dodecatheon hendersonii Joseph P. Tracy 1922-4-30 5994 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  JEPS14476  Downingia cuspidata Joseph P. Tracy 1935-5-25 13843 Humboldt Fort Seward 106 Comment
  POM256487  Downingia elegans var. corymbosa Joseph P. Tracy 1930-6-15 8739 Humboldt Larrabee Creek, near Bosworth's; North Coast Ranges. 457 Comment
  CAS-BOT-BC401537  Drosera rotundifolia Doris K. Kildale 1929-8-5 8772 Humboldt Big Lagoon Comment
  HSC36312  Drosera rotundifolia James Beaver 1973-5-20 Humboldt Big Lagoon Comment
  RSA0011668  Drosera rotundifolia C. B. Wolf 1934-7-2 5897 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC59622  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-6-30 4148 Humboldt Comment
  HSC57850  Drymocallis glandulosa var. reflexa G. L. Clifton 1979-7-31 11357 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC158415  Drymocallis rhomboidea Doris Kildale Gillespie 1931-6-7 10609 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  UC811824  Dryopteris arguta George Neville Jones 1936-3-22 8672 Humboldt near Garberville Comment
  SEINET6424295 Image available Dryopteris dilatata Hicks, Carpenter 1977-7-12 Humboldt Prairie Creek State Park Comment
  HSC91599  Dryopteris expansa E. Mackey 1987-8-29 Humboldt Patrick's Pont State Park, by bridge over Penn Creek Comment
  RSA693562  Dryopteris expansa Anstruther Davidson 1923-8-11 s.n. Humboldt Redwood Forest Comment
  CAS-BOT-BC197256  Echinochloa muricata var. microstachya Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC113437  Eleocharis acicularis Henry M. Pollard 1945-8-28 s.n. Humboldt Near Orleans. Pond near Harley place. Comment
  UC1103652  Eleocharis acicularis Joseph P. Tracy 1936-6-28 15025 Humboldt Lake Prairie Bald Mountain 1066 Comment
  CAS-BOT-BC113438  Eleocharis bella Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region. Comment
  JEPS64131  Eleocharis macrostachya W. L. Jepson 1921-8-7 9328 Humboldt Stone Lagoon Humboldt Coast Comment
  CAS-BOT-BC112837  Eleocharis macrostachya Doris K. Kildale 1928-7-29 5934 Humboldt Kanman Pond, Bear River Ridge. Comment
  CAS-BOT-BC112838  Eleocharis macrostachya David Daniels Keck 1938-8-5 4768 Humboldt Big Lagoon, on shore in drying clay mud. Comment
  HSC7308  Eleocharis macrostachya R. L. Jarvis 1962-4-7 11 Humboldt E of Hwy. 101, 4 mi. S of Eureka 0 Comment
  HSC7317  Eleocharis macrostachya J. Good 1964-5-15 44 Humboldt Mad River Park, 50 yds. N of parking lot Comment
  UC666916  Eleocharis suksdorfiana Joseph P. Tracy 1932-7-14 10559 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  HSC73057  Elymus X hansenii M. A. Baker 1980-7-23 3163 Humboldt Near Orleans Mtn. 1859 Comment
  UC38216  Elymus X hansenii J. Burtt Davy 1899-6-19 5661 y Humboldt Hoopa Mt. North Coast Ranges Comment
  HSC32330  Elymus elymoides var. californicus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5634 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC91890  Elymus glaucus E. Mackey 1986-10-7 Humboldt Partick's Point State Park. Comment
  RSA10138  Elymus glaucus Joseph P. Tracy 1926-6-20 7652 Humboldt Horse Mountain 1402 Comment
  UC187094  Elymus glaucus J. P. Tracy 1902-7-4 1760 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC203476  Elymus glaucus subsp. glaucus Joseph P. Tracy 1933-8-6 12950 Humboldt French Camp Ridge 1066 Comment
  SEINET200645  Elymus glaucus subsp. glaucus J. P. Tracy 1936-6-9 14889 Humboldt Bear River Ridge 457 Comment
  CHSC35546  Elymus multisetus James Payne Smith Jr. 1977-7-3 9256 Humboldt Six Rivers National Forest. Along Forest Service Road 13N01, 3 miles from its junction with State Route 36. 548 Comment
  UCD62495  Elymus multisetus A. H. Murphy 1951-6-13 64 Humboldt Along Eel River at Fort Seward. Comment
  SACT001159  Elymus vancouverensis Malcolm Nobs, S. Smith 1949-8-3 Humboldt Salt marshes bordering Humboldt Bay, 2 miles north of Eureka. Comment
  SD38379  Epilobium angustifolium Edith A. Purer 1932-7-27 4148 Humboldt Comment
  SDSU8810  Epilobium angustifolium subsp. circumvagum D. F. Howe 1961-8-1 3102 Humboldt 6 miles north of Trinidad on #101. Comment
  HSC54564  Epilobium brachycarpum Overton, Butler 1979-7-24 9583 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  RSA275298  Epilobium canum subsp. latifolium Thomas W. Nelson 1977-8-6 3722 Humboldt Lassics: serpentine ridge between Blanket Creek and Bear Creek just below Blanket Rock. Unsurveyed section east of T2S, R5E, Sec. 25 1494 Comment
  HSC54585  Epilobium ciliatum Overton, Butler 1979-7-24 9639 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC53828  Epilobium ciliatum subsp. ciliatum Griswold, Butler 1979-7-10 6276 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC1122558  Epilobium ciliatum subsp. ciliatum H. L. Person 1932-7-16 Humboldt hwy n Trinidad; Rock Point Quadrangle Comment
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Aug 3 2007
  UC583074  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-9 14330 Humboldt roadside on Redwood Hwy 5 mi n Humboldt-Mendocino Co. line; South Fork Of Eel River Comment
  POM271496  Epilobium ciliatum subsp. ciliatum Lyman Benson 1929-7-14 1804 Humboldt S. Fork Eel River, Weott Ranger Station Comment
  UC722075  Epilobium ciliatum subsp. ciliatum C. L. Hitchcock and J. S. Martin 1939-7-14 5441 Humboldt 7 mi e Shelter Cove 243 Comment
  JEPS31496  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1935-7-25 14228 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC49656  Epilobium ciliatum subsp. watsonii J. P. Smith 1971-10-6 4952 Humboldt At the end of Murray Rd., McKinleyville Comment
  HSC38333  Epilobium ciliatum subsp. watsonii Peter Sorensen 1976-7-14 Humboldt N Spit of Humboldt Bay, S of Samoa in the vicinity of Humboldt Co. Airport Comment
  HSC98949  Epilobium densiflorum Cara Witte 2008-7-28 946 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  UC1198500  Epilobium densiflorum Joseph P. Tracy 1909-8-1 3059 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1197009  Epilobium hallianum Joseph P. Tracy 1936-6-28 15028 Humboldt Lake Prairie Bald Mountain 1219 Comment
  HSC79541  Epilobium minutum Kenneth Clark 1981-4-5 1300 Humboldt Dead Man's Gulch, Shelter Cove 11 Comment
  SEINET10632318  Epilobium oreganum Joseph P. Tracy 1933-7-25 Tracy 12835 Humboldt Grouse Mountain 1500 Comment
  CAS-BOT-BC171849  Epilobium septentrionale Doris K. Kildale 1929-8-4 8778 Humboldt Mattole River at Union Mattole Comment
  UC562496  Epilobium septentrionale Joseph P. Tracy 1933-9-9 13075 Humboldt vicinity of Garberville (along S. Fork Eel River); S. Fork Eel River 121 Comment
  HSC32543  Epilobium torreyi Thomas W. Nelson 1973-8-19 1117 Humboldt McKeown Ranch N of Dinsmore, floodplain of Mad River Comment
  CAS-BOT-BC57104  Equisetum X ferrissii Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC46006  Equisetum hyemale subsp. affine J. P. Smith 1971-10-9 4996 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC36459  Equisetum hyemale subsp. affine John Rehling 1976-2-20 112 Humboldt Growing along the banks of the Van Dusen just W of Bridgeville Comment
  HSC70639  Equisetum telmateia subsp. braunii R. York 1980-5-18 594 Humboldt Near Black Mtn 792 Comment
  HSC887  Equisetum telmateia subsp. braunii Dan O'Brien 1962-5-20 Humboldt 0.5 mi. E of Humboldt State University campus Comment
  RSA183500  Equisetum telmateia var. braunii D. V. Sanford 1963-3-23 23 Humboldt [no locality information provided] Comment
  CAS-BOT-BC284095  Eragrostis pectinacea var. pectinacea Peter Rubtzoff 1968-9-4 5958 Humboldt Goulds Bar, South Fork Eel River southeast of Weott Comment
  CDA4547  Erechtites glomeratus M. A. Hart 1957-8-9 157 -57 Humboldt Between Eureka and Areata. 0 Comment
  POM174069  Erechtites glomeratus Joseph P. Tracy 1918-9-1 5095 Humboldt Newells Camp, around Humboldt Bay. On old Kneeland Prairie Road. 457 Comment
Read comments
Jun 10 2012
  RSA167387  Erechtites glomeratus Joseph P. Tracy 1950-9-10 19360 Humboldt Bear River Ridge, 1 mile north of Capetown. 305 Comment
  CAS-BOT-BC299907  Erechtites minimus A. A. Heller 1923-7-8 13766 Humboldt State redwood camp 10 miles south of Dyerville Comment
  CAS-BOT-BC299908  Erechtites minimus A. A. Heller 1923-7-8 13766 Humboldt State redwood camp 10 miles south of Dyerville Comment
  CDA5471  Erica lusitanica T. C. Fuller 1961-3-22 5938 Humboldt North slope, Humboldt Hill, Eureka. 0 Comment
  UC1199413  Ericameria nauseosa var. speciosa Joseph P. Tracy 1935-7-30 14360 Humboldt Salmon Summit 1767 Comment
  CAS-BOT-BC296120  Erigeron foliosus var. confinis Alice Eastwood; John Thomas Howell 1937-6-26 5071 Humboldt Near Orleans Comment
  CAS-BOT-BC300683  Erigeron foliosus var. mendocinus L. R. Abrams 1916-7-11 6055 Humboldt At mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  UC1222983  Erigeron glacialis var. glacialis Joseph P. Tracy 1947-8-24 17902 Humboldt meadow at Box Camp; Trinity Summit, Box Camp 1463 Comment
  HSC39954  Erigeron glaucus Linda M. Barker 1976-6-22 1616 Humboldt 3 mi. W of Arcata Comment
  HSC90479  Erigeron glaucus Jean Hanson 1980-8-28 121 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  HSC93533  Erigeron glaucus Gordon Leppig 1998-6-22 840 Humboldt Dry Lagoon State Park 2 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
  HSC74424  Erigeron klamathensis Gail Newton 1980-7-24 1766 Humboldt Near Somes Mtn. 1615 Comment
  CAS-BOT-BC214576  Erigeron philadelphicus Kenneth Clark 1980-6-14 697 Humboldt Shelter Cove. North fork Dead Man's Gulch 121 Comment
  CAS-BOT-BC214582  Erigeron philadelphicus Doris K. Kildale 1926-3-22 1600 Humboldt Fleener Creek Comment
  HSC67011  Erigeron philadelphicus J. P. Smith 1971-10-9 5025 Humboldt Mad River above the Fish Hatchery. Comment
  HSC79512  Erigeron philadelphicus Kenneth Clark 1980-6-14 697 Humboldt Shelter Cove; in stream alluvium of N fork of Dead Man's Gulch 198 Comment
  UCD20386  Erigeron philadelphicus K. Esau 1934-5-6 s.n. Humboldt Fort Seward. Comment
  JEPS57404  Erigeron philadelphicus var. philadelphicus L. R. Heckard with T. I. Chuang 1968-7-4 1980 Humboldt n end Big Lagoon Comment
  UC34159  Erigeron philadelphicus var. philadelphicus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC573410  Erigeron philadelphicus var. philadelphicus H. S. Yates 1936-6-23 5855 Humboldt 2 mi se of mouth Mad River; Eureka Quad. 30 Comment
  HSC100375  Erigeron robustior D. Decker 2010-7-28 Humboldt Buck Project, Dinsmore. 976 Comment
  UC176758  Erigeron strigosus var. strigosus Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5712 Humboldt Hoopa Valley Comment
  CAS-BOT-BC224255  Eriodictyon californicum Doris K. Kildale 1925-6-21 747 Humboldt Briceland Bridge 1/2 mi. west of Garberville 114 Comment
  RSA0065545  Eriogonum baileyi Marion P. Harthill 1971-9-8 571 Humboldt Walker River, Toiyabe National Forest, Lower Campgrounds. Comment
  HSC54002  Eriogonum compositum Griswold, Butler 1979-7-10 7111 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  CAS-BOT-BC259148  Eriogonum latifolium Marcus E. Jones 1931-7-12 28806 Humboldt Alton Comment
  CAS-BOT-BC259180  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River Comment
  UC1478648  Eriogonum latifolium Robert F. Thorne 1974-7-29 45074 Humboldt Samoa Dunes Comment
  CAS-BOT-BC259530  Eriogonum luteolum var. luteolum H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC259541  Eriogonum luteolum var. luteolum A. A. Heller 1924-7-20 13861 Humboldt Along the Eel River at Phillipsville Comment
  UC14097  Eriogonum luteolum var. luteolum Chesnut and Drew 1888-7-23 Humboldt Hyampon Comment
  CAS-BOT-BC259536  Eriogonum luteolum var. luteolum Milo S. Baker 1927-8-14 2435 a Humboldt Near Summit of ridge West of Bull Creek Comment
  HSC55189  Eriogonum nudum G. L. Clifton, Griswold 1979-8-2 12253 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC74306  Eriogonum nudum M. A. Baker 1980-7-24 3204 Humboldt Near Orleans Mtn. 1625 Comment
  HSC99071  Eriogonum nudum var. nudum Cara Witte 2007-7-9 467 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  RSA18610  Eriogonum nudum var. nudum Carl B. Wolf 1937-9-8 9300 Humboldt North Coast Range, Bull Creek- Petrolia Road, 11 miles west of redwood highway. 305 Comment
  CDA22632  Eriogonum nudum var. oblongifolium T. R. Haig 1960-6-19 Humboldt Kneeland School. 0 Comment
  HSC40826  Eriogonum strictum var. greenei Thomas W. Nelson, James Nelson 1976-7-26 3041 Humboldt Middle pk. of Mt. Lassic group 1738 Comment
  HSC54001  Eriogonum umbellatum Griswold, Butler 1979-7-10 7110 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  CAS-BOT-BC267473  Eriogonum umbellatum Volney Rattan 1883-6-1 s.n. Humboldt Summit bet. Mad R. & Pilot Cr. Comment
  HSC24386  Eriogonum umbellatum var. goodmanii J. O. Sawyer 1970-6-24 2211 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC1980592 Image available Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U. S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom. Comment
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Jun 19 2014
  HSC55169  Eriogonum umbellatum var. stellatum Gilbert Muth 1979-8-1 12163 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC63845  Eriogonum umbellatum var. umbellatum M. A. Baker 1979-6-26 913 Humboldt S facing ridge Comment
  CDA18219  Eriophyllum lanatum var. achilleoides G. D. Barbe, T. C. Fuller 1974-6-17 1847 Humboldt North Coast Ranges; Shelter Cove, Upper Pacific Drive, at Sea View Rd. 91 Comment
  BLMAR631  Eriophyllum lanatum var. arachnoideum Jennifer Wheeler 2011-6-15 631 Humboldt Lacks Creek, Bair road Comment
  HSC91916  Eriophyllum lanatum var. arachnoideum E. Mackey 1986-7-21 Humboldt Patrick's Point State Park; Wedding Rock Trail Comment
  UC76599  Eriophyllum lanatum var. grandiflorum Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  HSC35608  Eriophyllum lanatum var. lanceolatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2020 Humboldt French Camp, Bald Hills Comment
  HSC44347  Eriophyllum lanatum var. lanceolatum Brad Klipfel 1975-6-17 688 Humboldt Horse Mtn. Comment
  RSA12526  Eriophyllum lanatum var. lanceolatum C. B. Wolf 1934-7-3 5910 Humboldt 20 miles from Orick on Weitchpec Road 152 Comment
  UC176874  Erodium cicutarium Joseph P. Tracy 1912-6-9 3675 Humboldt Alton Northern Coast Region 30 Comment
  HSC57884  Erysimum perenne Walter Overton, Marvin Butler 1979-7-31 11428 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  SEINET8229973  Erythranthe nasuta Joseph P. Tracy 1920-5-18 5379 Humboldt South Fork Eel River; from South Fork to Scotia; 4 miles above Dyerville. 61 Comment
  UC666967  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  UCD139632  Erythronium californicum Roman Gankin; W. R. Hildreth 1966-3-15 699 Humboldt State Highway 96, 8.4 miles north of Hoopa. Comment
  RSA46693  Erythronium grandiflorum subsp. grandiflorum Doris K. Kildale 1938-6-5 15392 Humboldt Horse Mountain Comment
  HSC95188  Erythronium revolutum Gordon Leppig, Tony LaBanca 2003-5-23 1947 Humboldt PalCo land, Kneeland, THP 1-01-359HUM 720 Comment
  HSC104325  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 23 Humboldt Kneeland 854 Comment
  HSC16768  Eschscholzia californica William J. Ferlatte 1963-4-28 24 Humboldt Near 12th and B St., Arcata Comment
  HSC97951  Eschscholzia californica Cara Witte 2007-6-21 317 Humboldt National Forest 1. Two miles south of intersection with 5N04. 1472 Comment
  RSA168920  Eschscholzia californica subsp. californica Joseph P. Tracy 1950-6-8 18750 Humboldt Cape Mendocino, near ocean shore, south of point of the Cape. At 'Devil's Gate'. 3 Comment
  UC450221  Eucephalus ledophyllus Joseph P. Tracy 1919-9-18 5227 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1889 Comment
  UC1199298  Eucephalus tomentellus Joseph P. Tracy 1930-7-19 9083 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC549768  Euchiton gymnocephalus J. P. Tracy 1904-7-31 2134 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC206925  Euonymus occidentalis Joseph P. Tracy; H. E. Parks 1925-6-14 7123 Humboldt Kneeland Paririe Road, along stream. 457 Comment
  JEPS9604  Euonymus occidentalis var. occidentalis Lincoln Constance 1934-6-11 855 Humboldt Bull Creek rd. to Dyerville (and Lower Look Prairie); S. Fork Eel R., Bull Creek Region Comment
  SEINET10971171  Eupatorium occidentale Mary Susan Taylor 1980-6-11 Taylor 2844 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
  UC1198970  Euphorbia crenulata Joseph P. Tracy 1912-8-1 3960 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  NY263154  Euphorbia occidentalis V. K. Chesnut 1888-7-23 Humboldt Hy-Am-Pum (spelling?) Comment
  HSC66404  Eurybia radulina Ruby Van Deventer 1950-8-15 Humboldt Myers Falt 61 Comment
  UCD98912  Fallopia sachalinensis H. E. Parks; S. T. Parks 1952-6-1 24448 Humboldt South of the Elk River Bridge on Highway 10. Comment
  SBBG53090  Festuca bromoides R. N. Philbrick 1976-6-25 11 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  CAS-BOT-BC282500  Festuca elmeri Doris K. Kildale 1928-6-24 5286 Humboldt Horse Mountain 914 Comment
  UC1103703  Festuca elmeri Joseph P. Tracy 1942-5-16 17339 Humboldt Garberville 152 Comment
  CAS-BOT-BC278421  Festuca idahoensis Joseph P. Tracy 1930-7-10 8867 Humboldt Northern Coast Ranges. Brannan Mountain 1219 Comment
  HSC63852  Festuca idahoensis M. A. Baker 1979-6-27 916 Humboldt S facing ridgeside Comment
Read comments
Feb 15 2013
  UC187103  Festuca idahoensis Joseph P. Tracy 1911-7-6 3338 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC90039  Festuca occidentalis Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-28 66 Humboldt Hwy. 299, 4 mi. W of Burnt Ranch 259 Comment
  SBBG53089  Festuca perennis R. N. Philbrick, J. R. Haller 1976-6-26 9 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  SEINET181178 Image available Festuca rubra Bassett Maguire, Ruth Maguire; CB Maguire 1934-6-8 15065 Humboldt 20 mi N of Eureka Comment
  UC1145214  Festuca rubra Joseph P. Tracy 1950-6-17 18837 Humboldt Eureka 3 Comment
  UCD66378  Festuca rubra J. B. Davy; W. C. Blasdale 1899-6-19 5676 Humboldt Hoopa Mountain. Comment
  HSC81922  Festuca subulata Thomas W. Nelson, Jane P. Nelson 1979-7-3 4964 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UCD66439  Festuca subulata P. B. Kennedy 1923-8-3 Humboldt South of Scotia by road through redwoods off highway. Comment
  UC249608  Foeniculum vulgare Joseph P. Tracy 1922-8 6104 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC36257  Foeniculum vulgare John Rehling 1974-8-3 17 Humboldt Growing along side of old Hwy 299 in disturbed area Comment
  SEINET4090923  Fragaria chiloensis O. M. Clark 1932-1 702 Humboldt North Eureka. Comment
  HSC18609  Fragaria vesca E. W. Styskel 1963-3-3 5 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  HSC31119  Fragaria vesca J. O. Sawyer 1970-6-24 2259 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC72700  Fragaria vesca Gail Newton 1980-6-24 570 Humboldt Near Ladder Rock 1570 Comment
  UC1198728  Fragaria vesca Joseph P. Tracy 1917-4-29 4778 Humboldt Lucas Prairie; Northern Coast Region, Eureka 0 Comment
  HSC75559  Fragaria virginiana J. O. Sawyer, J. Cole 1977-7-3 3007 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  CAS-BOT-BC53400  Frangula californica subsp. occidentalis Joseph P. Tracy 1941-9-4 17012 Humboldt Willow Creek Canyon, along Trinity Highway 609 Comment
  SEINET200390  Frasera speciosa Joseph P. Tracy 10731 Humboldt Trinity Summit , Open places at Corral Prairie. 1585 Comment
  CAS-BOT-BC217694  Fraxinus latifolia Joseph P. Tracy 1928-4-22 8414 Humboldt Willow Creek, Trinity River Valley 152 Comment
  CAS-BOT-BC217699  Fraxinus latifolia Doris K. Kildale 1927-5-15 3293 Humboldt Petrolia, Mattole River Comment
  RSA430762  Fraxinus latifolia Lyman Benson 1928-7-10 393 Humboldt Weott Ranger Station. Mtn. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  RSA698197  Fraxinus latifolia J. Russell Bruff 1937-8-18 945 Humboldt Richardson Grove, bank at Eel River Comment
  UC54925  Fraxinus latifolia Mrs. M. H. Manning 1902-4 Humboldt near Hupa Comment
  HSC15550  Fritillaria affinis Greg Bos 1965-5-15 275 Humboldt Berry Summit near Hwy. 299 793 Comment
  UC429292  Fritillaria affinis Mrs. M. H. Manning 1901-1 9 Humboldt near Hupa Comment
  UC1539972  Fritillaria affinis Joseph P. Tracy 1910-4-24 3122 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC8377  Fumaria officinalis Wm. F. Bowman 1968-11-20 Humboldt 4 mi. SE of Arcata, along Jacoby Creek. Comment
  HSC39421  Galium ambiguum subsp. siskiyouense Thomas W. Nelson 1976-6-14 2707 Humboldt S of Lassic Peak 1524 Comment
  HSC32325  Galium aparine D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5666 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC1222495  Galium aparine Joseph P. Tracy 1950-6-25 18891 Humboldt Burr Valley Comment
  JEPS25693  Galium aparine P. C. Hutchison 1961-5-22 2021 Humboldt US 299 5.4 mi ne Klamath River bridge at Weitchpec (10 mi sw of Orleans, w side of river); Klamath River Comment
  UC602547  Galium bifolium Joseph P. Tracy 1932-7-11 10407 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  HSC40043  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1976-7-1 2896 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC36248  Galium muricatum Thomas W. Nelson, Jane P. Nelson 1976-2-21 2243 Humboldt Beside the Hoopa-Redwood Valley Rd., 2.5 mi. W of Hoopa Comment
  HSC45640  Galium muricatum Diane L. Reed 1978-5-7 57 Humboldt Fourmile Creek, 4 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  JEPS52844  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-10-27 3957 Humboldt along stream on road to Madrone Campground Redwood Highway, Richardson Grove Comment
  POM266215  Galium parisiense Joseph P. Tracy 1939-8-5 16378 Humboldt Dinsmore's. Comment
  HSC53836  Galium triflorum Griswold, Butler 1979-7-10 6286 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC58322  Galium triflorum Overton, Butler 1979-8-2 12619 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 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
  BLMAR224  Galium triflorum Jennifer Anthony-Wheeler 1996-7-11 224 Humboldt N. Dobbyn creek, shady areas of forest floor throughout understory 1005 Comment
  HSC76357  Garrya buxifolia Denis Kearns 1981-7-6 47 Humboldt Near Mosquito Lake 1122 Comment
  CAS-BOT-BC188545  Garrya elliptica Joseph P. Tracy 1939-3-19 16203 Humboldt Bluffy hillside; Root Grade near Blue Slide on Van Duzen River 91 Comment
  CAS-BOT-BC188550  Garrya elliptica J. P. Tracy 1911-10-22 3549 Humboldt Immediate vicinity of Eureka 152 Comment
  HSC39953  Garrya elliptica Linda M. Barker 1976-1-24 1309 Humboldt 3 mi. W of Arcata Comment
  UC630637  Garrya elliptica Joseph P. Tracy 1939-3-19 16203 Humboldt near Blue Slide (on Van Duzen River, Root Grade); Van Duzen River 91 Comment
  JEPS66732  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 Humboldt Willow Creek; Trinity River Valley 152 Comment
  RSA183630  Garrya fremontii D. E. Anderson 1965-4-24 3537 Humboldt Along Titlow Hill Road, ca. two miles from its junction with Highway 299. Comment
  HSC71725  Gastridium phleoides M. A. Baker 1980-6-26 2462 Humboldt Near Sims Creek 610 Comment
  RSA129632  Gastridium phleoides H. S. Yates 1936-6-23 5877 Humboldt 4 miles NNE of Cathay Peak. Comment
  JEPS79891  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain, at Lake Prairie Bald Mountain; , Lake Prairie 1066 Comment
  HSC22506  Gaultheria shallon R. E. Hafenfeld 1965-5-9 4 Humboldt Jct. of County Rd. and Gold Bluff Beach Rd. Comment
  HSC22529  Gaultheria shallon Jerry Parker 1968-10-26 197 Humboldt Big Lagoon County Park Comment
  HSC23141  Gaultheria shallon Norman Dennis 1965-6-19 125 Humboldt 0.25 mi S and 1.0 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  HSC69579  Gaultheria shallon R. Kalal 1980-6-1 6 Humboldt S side Essex Pond 18 Comment
  UC1541490  Gaultheria shallon W. K. Parks 1932-6-1 1404 Humboldt vicinity of Trinidad Comment
  UC1585409  Gaultheria shallon R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 32 Humboldt w of Hoopa (just e of Pine Ridge Summit, Bair Road); Bair Road 970 Comment
  HSC55272  Gayophytum humile Overton, Butler 1979-8-2 12650 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC34638  Genista monspessulana J. M. Sauser 1975-4-9 3 Humboldt Old Arcata Rd., 3/4 mi. S of junction with Indianola Rd. Comment
  JEPS47039  Gentiana affinis var. ovata W. L. Jepson 1936-8-18 17941 Humboldt s of Eel River mouth; Wildcat Ridge Comment
  JEPS24349  Gentiana calycosa Joseph P. Tracy 1939-8-16 16412 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  CAS-BOT-BC217411  Gentiana plurisetosa Doris K. Kildale 1925-8-17 1194 Humboldt Trinity Summit 1917 Comment
  HSC8453  Gentiana sceptrum D. E. Anderson 1961-9-9 1797 Humboldt Big Lagoon County Park Comment
  UC1198643  Gentiana sceptrum Joseph P. Tracy 1938-9-25 16166 Humboldt Lake Prairie Bald Mountain 1066 Comment
  UC630470  Geranium dissectum H. E. and S. T. Parks Apr 1938 24118 Humboldt Spruce Cove Trinidad 60 Comment
  HSC78962  Geranium dissectum L. P. Janeway, K. Berg 1984-4-11 723 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  UC1197395  Geranium molle Joseph P. Tracy 1911-7-9 3463 Humboldt near Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC28132  Geranium molle J. D. Ackerman 1973-5-6 51 Humboldt Redcrest Comment
  HSC8656  Geranium molle Richard Spjut 1968-11-2 258 Humboldt On the SW slope of Chaparral Mtn. 701 Comment
  HSC44760  Geranium oreganum Maralyn O'Meara 1972-6-8 80 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  CHSC10116  Gilia capitata H. D. Sumner 1959-7-14 Humboldt On road between Hoopa and Redwood Creek. 304 Comment
  HSC73711  Gilia capitata M. A. Baker 1980-7-15 2977 Humboldt Near Whiting Ridge. 1341 Comment
  RSA84895  Gilia capitata H. M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  HSC45058  Gilia capitata subsp. pacifica R. Sutherland 1978-4-24 14 .24478 Humboldt 12 Comment
  UC1197922  Gilia capitata subsp. pacifica Joseph P. Tracy 1921-5-30 5498 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1197926  Gilia capitata subsp. pacifica Joseph P. Tracy 1930-5-25 8725 Humboldt Bridgeville 198 Comment
  JEPS85975  Gilia tricolor subsp. diffusa Joseph P. Tracy 1919-5-31 5144 Humboldt at Willow Creek (Trinity River Valley); Trinity River, Willow Creek 152 Comment
  UC231500  Gilia tricolor subsp. tricolor Joseph P. Tracy 1919-5-31 5144 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC17914  Glaux maritima D. E. Anderson 1962-5-10 2207 Humboldt Lanphere's Comment
  HSC17915  Glaux maritima Norman H. Moe 1962-5-17 Humboldt Lanphere's Place Comment
  HSC102148  Glyceria elata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1055 Humboldt Patterson Meadows 1555 Comment
  HSC58542  Glyceria elata Overton, Butler 1979-7-23 9545 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  SEINET4584957  Glyceria striata H. Ch 1901-1 1526 Humboldt Klamath River, North Coast Ranges 427 Comment
  HSC99567  Gnaphalium palustre K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 232 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
  SEINET10726165  Gnaphalium palustre Harold E. Parks, Susan T. Parks Parks 24080 Humboldt Abundant in newly cultivated areas; Spruce Cove, Trinidad. Comment
  RSA638984  Gnaphalium stramineum Percy C. Everett 1965-8-6 35171 Humboldt Samoa Dunes. 3 Comment
  UC1326261  Goodyera oblongifolia Milo S. Baker 1947-8-10 11906 Humboldt along trail to Trinity Summit from end of Forest Road from Hoopa Trinity Summit 1432 Comment
  HSC49096  Grindelia hirsutula Patricia Shesgreen 1978-7-30 119 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  POM161906  Grindelia stricta var. stricta Joseph P. Tracy 1921-7-10 5856 Humboldt Big Lagoon. 6 Comment
  JEPS79900  Hackelia micrantha Joseph P. Tracy 1932-7-11 10421 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC525574  Hackelia micrantha Joseph P. Tracy 1932-7-11 10421 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC57980  Hastingsia serpentinicola G. L. Clifton, Griswold 1979-7-31 11710 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC59038  Hedera helix Thomas Wood 1979-4-20 119 Humboldt Along frontage rd., parallel and E of Hwy. 101 at Patrick Cr. Rd. intersection, adjacent to Patrick Cr. 6 Comment
  HSC35869  Helenium bolanderi Thomas W. Nelson, James Nelson 1975-8-5 2125 Humboldt Beside rd. to Table Bluff 1.0 mi. W of Copenhagen Rd. Comment
  CAS-BOT-BC309414  Helenium puberulum Doris K. Kildale 1928-7-29 5921 Humboldt Mouth of Bear River at Capetown Comment
  UC1223171  Helminthotheca echioides Joseph P. Tracy 1948-8-8 18098 Humboldt 2 mi w Bridgeville Comment
  HSC30151  Hemitomes congestum Kennith Irwin 1973-5-31 Humboldt Patrick's Point. Bulk Collection 80 Comment
  RSA255766  Hemitomes congestum Gary D. Wallace, S. Carlquist 1972-6-30 1102 Humboldt Prairie Crrek Redwoods Stl. Pk. near the coast. Comment
  HSC38709  Hemizonella minima J. P. Smith 1976-5-29 8819 Humboldt Horse Mtn. 1402 Comment
  UC1223094  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1950-6-23 18864 Humboldt 3 mi ne Alderpoint; Dobbyn Creek 213 Comment
  CAS-BOT-BC306036  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1930-9-1 9174 Humboldt Northern Coast Ranges. Miranda; along South Fork of Eel River 121 Comment
  CAS-BOT-BC306079  Hemizonia congesta subsp. clevelandii W. R. Dudley 1899-6-29 s.n. Humboldt Bank of Eel River Comment
  UC495626  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1930-9-1 9174 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River 121 Comment
  CAS-BOT-BC309987  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1932-8-21 10364 Humboldt Northern Coast Ranges. Three Cabins; on lower western foothills of Chaparral Mountain 457 Comment
  CAS-BOT-BC309988  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1932-8-21 10364 Humboldt Northern Coast Ranges. Three Cabins; on lower western foothills of Chaparral Mountain 457 Comment
  CAS-BOT-BC309995  Hemizonia congesta subsp. tracyi Carl B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  HSC5820  Hemizonia congesta subsp. tracyi R. Spellenberg 1965-6-14 1129 Humboldt Kneeland Prairie, at Kneeland Airport 6 mi. SE of Kneeland Comment
  JEPS12644  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1931-6-28 9598 Humboldt lower foothills of its nw slope Buck Mountain 762 Comment
  RSA388122  Hemizonia congesta subsp. tracyi C. B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  RSA254780  Hemizonia tracyi Thomas W. Nelson 1973-5-28 967 Humboldt McKeown Ranch north of Dinsmore. Comment
  CHSC31319  Heracleum lanatum Mark Stopher 1980-6-4 89 Humboldt Occasional in dike off upland habitat along Elk River near Rte 101 Bridge. 1 Comment
  CDA20030  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 1 of 3 0 Comment
  JEPS14231  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad R. 15 Comment
  UC275454  Hesperevax acaulis var. robustior Joseph P. Tracy 1925-5-17 6982 Humboldt near s fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1116245  Heterocodon rariflorum Joseph P. Tracy 1942-6-15 17158 Humboldt Garberville 304 Comment
  SEINET10873420  Heterocodon rariflorum Chesnut CHESNUT 1888 Humboldt KNEELAND Comment
  HSC67012  Heterotheca oregona var. rudis J. P. Smith 1971-10-9 4987 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC1199410  Heterotheca oregona var. rudis Joseph P. Tracy 1939-8-5 16389 Humboldt Dinsmore's Van Duzen River 737 Comment
  UC667100  Heuchera micrantha Joseph P. Tracy 1933-5-20 12216 Humboldt 2 mi s Ferndale (Wild Cat Ridge); Wild Cat Ridge 304 Comment
  CAS-BOT-BC312391  Hieracium albiflorum Doris K. Kildale 1928-6-24 7078 Humboldt Redwood Creek at Berry's 289 Comment
  HSC57336  Hieracium albiflorum Overton, Butler 1979-7-26 10003 Humboldt Near Willow Creek 1341 Comment
  HSC57620  Hieracium albiflorum G. L. Clifton, Griswold 1979-7-25 10746 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC70727  Hieracium albiflorum Gail Newton 1980-7-14 1522 Humboldt Near Deadman Ridge 1097 Comment
  UC1199465  Hieracium albiflorum Joseph P. Tracy 1935-7-28 14331 Humboldt Head of Devil's Hole Trinity Summit 1828 Comment
  RSA44541  Hieracium albiflorum H. M. Pollard 1947-8-23 s.n. Humboldt Fontana's Fishing Lodge, near Orleans. Comment
  JEPS36565  Hieracium bolanderi Joseph P. Tracy 1926-6-20 7638 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC102077  Hieracium greenei M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 979 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC5840  Hieracium greenei J. P. Tracy 1935-7-30 14358 Humboldt Salmon Summit 1768 Comment
  HSC44090  Hieracium greenei Thomas W. Nelson, Jane P. Nelson 1977-8-6 3714 Humboldt Along the lower S slope of Mt. Lassic (Signal Peak) 1494 Comment
  UC34196  Hieracium nudicaule Harley P. Chandler 1901-6-1 1489 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC1103737  Hierochloe occidentalis Joseph P. Tracy 1934-7-9 13340 Humboldt 3 mi s Harris; Northern Coast Ranges 762 Comment
  UC187262  Hierochloe occidentalis Joseph P. Tracy 1911-5-7 3180 Humboldt Kneeland Prairie North Coast Ranges 762 Comment
  UC39806  Hierochloe occidentalis W. C. Blasdale 1896-6-7 Humboldt near Kneeland Prairie Comment
  RSA10085  Hierochloe occidentalis Joseph P. Tracy 1926-4-11 7401 Humboldt Bridgeville 229 Comment
  HSC34986  Hippuris vulgaris Thomas W. Nelson 1974-9-12 1708 Humboldt KOA campground along E side of Hwy. 101, 3 mi. S of Arcata Comment
  HSC10140  Holcus lanatus N. R. Waite 1965-5-21 54 Humboldt W edge of Humboldt State College Campus. Comment
  HSC71723  Holcus lanatus M. A. Baker 1980-6-26 2464 Humboldt Near Sims Creek 610 Comment
  POM319520  Holcus lanatus Patricia Wilder 1968-8-21 4368 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  UC1103731  Holcus lanatus J. P. Tracy 1901-4-7 1012 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  RSA698661  Holodiscus discolor J. R. Bruff 1937-8-17 933 Humboldt Richardson Grove. Comment
  UC666848  Holodiscus discolor Joseph P. Tracy 1937-6-20 15347 Humboldt Bear River 10 miles upstream from the mouth Bear River 152 Comment
  CAS-BOT-BC281265  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1933-6-6 12508 Humboldt Trinidad 9 Comment
  CAS-BOT-BC284690  Hordeum jubatum Joseph P. Tracy 1927-7-16 8249 Humboldt Northern Coast Ranges. Around Humboldt Bay. Mouth of Elk River 3 Comment
  HSC102700  Hordeum marinum subsp. gussoneanum J. P. Smith 2013-6-16 13727 Humboldt Along State Route 36, just west of the 31.40 highway sign (milepost). 757 Comment
  HSC26776  Hordeum marinum subsp. gussoneanum Thomas W. Nelson 1971-5-31 466 Humboldt 915 Comment
  HSC10203  Hordeum murinum subsp. leporinum L. M. Malloy 1965-4-23 45 Humboldt Samoa 1/4 mi. NW of the corner of Thunder Rd. and The Hard Way. Comment
  HSC10204  Hordeum murinum subsp. leporinum R. D. Modafferi 1965-5-13 100 Humboldt Intersection of Main St. and old Hwy. 101, S of Trinidad Comment
  HSC10231  Hordeum vulgare S. J. Hawks 1965-4-6 23 Humboldt Along Clam Beach access road. Comment
  UC154516  Horkelia tridentata subsp. flavescens Harley P. Chandler June 1901 1295 Humboldt Hupa Indian Reserve North Coast Ranges 1066 Comment
  HSC76241  Horkelia tridentata var. flavescens Denis Kearns 1981-6-24 9 Humboldt Near Cedar Camp 1219 Comment
  HSC41253  Hosackia oblongifolia Brad Klipfel 1974-6-25 443 Humboldt Horse Mtn., near the creek just below the mine Comment
  HSC57864  Hydrophyllum fendleri var. albifrons G. L. Clifton 1979-7-31 11389 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC64261  Hydrophyllum fendleri var. albifrons J. O. Sawyer, M. A. Ericksen 1979-6-23 3395 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC70236  Hydrophyllum occidentale M. A. Baker 1980-6-8 1899 Humboldt Near Buck Flat. 1554 Comment
  HSC38628  Hydrophyllum tenuipes D. E. Anderson, J. P. Smith 1971-6-18 - 1100 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake Comment
  UC177201  Hydrophyllum tenuipes Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3617 Humboldt near Hydesville; Northern Coast Region 30 Comment
  JEPS1638  Hydrophyllum tenuipes Lincoln Constance 1934-5-26 650 Humboldt North Dyerville Flat grove near Founder's Tree (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel Riv 48 Comment
  UC427873  Hydrophyllum tenuipes Parks and Tracy 1930-5-25 863 Humboldt in redwoods along Middle Van Duzen River Comment
  HSC74430  Hypericum anagalloides Gail Newton 1980-8-10 2060 Humboldt Near Blake Mtn. 1707 Comment
  UC1198411  Hypericum anagalloides Joseph P. Tracy 1913-7-13 4358 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  UC175706  Hypericum anagalloides Joseph P. Tracy 1912-7-14 3747 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  POM146240  Hypericum formosum var. scouleri J. B. Feudge 1923-7-23 153 Humboldt Trinidad Comment
  CDA30714  Hypericum perforatum M. K. Beyers, I. Shepardson 2009-9-13 250 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC56972  Hypericum perforatum Overton, Butler 1979-7-23 9501 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC420746  Hypericum perforatum Harley P. Chandler June, 1901 1493 Humboldt Klamath R. North Coast Ranges, Klamath R. 426 Comment
  UC668258  Hypericum perforatum Joseph P. Tracy 1933-7-3 12641 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  BLMAR223  Hypericum perforatum Jennifer Anthony-Wheeler 1996-7-11 223 Humboldt N. Dobbyn creek 1005 Comment
  HSC12005  Hypericum perforatum Wilbur Peterson 1970-10-18 60 Humboldt 200 yards S of Mad River Bridge on Hwy 101 Comment
  SEINET6178750  Hypericum perforatum Dunn Bennett, Dziekanowski 1976-8-6 479 Humboldt By Hwy 101, N Side of Orick. Rocky area, densely forested by river.; 0 30 Comment
  UC1223074  Hypochaeris glabra Joseph P. Tracy 1948-5-31 18020 Humboldt Dobbyn Creek 152 Comment
  HSC60062  Hypochaeris glabra M. A. Baker 1978-5-6 491 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  RSA94822  Hypochaeris glabra F. W. Peirson 1923-7-9 3934 Humboldt State Park on Eel River Comment
  HSC37940  Hypochaeris radicata Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC67871  Hypochaeris radicata J. P. Smith 1973-5-26 6879 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET11860415  Hypochaeris radicata Unknown 1933-8-6 s.n. Humboldt Eureka Comment
  JEPS67378 Image available Iliamna latibracteata Joseph P. Tracy 1939-7-23 16350 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
  UC909042  Ipomopsis aggregata Joseph P. Tracy 1933-7-25 12884 Humboldt Grouse Mtn Northern Coast Ranges 1524 Comment
  JEPS17227  Iris douglasiana Joseph P. Tracy 1939-6-17 16311 Humboldt vicinity Carlotta 30 Comment
  RSA135857  Iris douglasiana Lee W. Lenz, E. K. Balls 1951-5-8 16509 Humboldt Just south of Scotia (to 4.2 miles south) along Highway 101 Comment
  UC1174761  Iris douglasiana L. W. Lenz and E. K. Balls 1951-5-8 16508 Humboldt 14.7 mi n Trinidad (Hwy 101) 6 Comment
  RSA135935  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-12 17193 Humboldt 0.5 mile west of Bridgeville, 23.7 miles east and southeast from Alton along Highway 36 Comment
  HSC66479  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-9 450 Humboldt FS Rd. 12N20, 1.5 mi. W of its junction with FS Rd. 15N01, Orleans 793 Comment
  CAS-BOT-BC88654  Isatis tinctoria J. H. Thomas 1949-6-12 900 Humboldt Near Klamath River, about 0.5 mile north of town of Orleans. Comment
  HSC96363  Isolepis setacea Gordon Leppig 1999-10-3 1257 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  UC1196176  Isopyrum stipitatum Joseph P. Tracy 1922-5-29 6068 Humboldt valley at head of South Yager Creek; Northern Coast Ranges, head of South Yager Creek 762 Comment
  BLMAR430  Jaumea carnosa Clara Sander 2004-8-30 430 Humboldt South Spit, 1.6km north on the south spit 3 Comment
  SEINET11261291  Jaumea carnosa C. C. Harris, S. K. Harris 1939-8-26 994 Humboldt South shore of Humboldt Bay.; 0 Comment
  CAS-BOT-BC340158  Jaumea carnosa Doris K Niles 1951-8-28 10 Humboldt North side of Niles Island on Niles farm near Loleta, Eel River bottomlands. Comment
  UC275455  Jaumea carnosa Joseph P. Tracy 1927-8-2 7222 Humboldt Big Lagoon Northern Coast Range 6 Comment
  CAS-BOT-BC109922  Juncus Doris Kildale Gillespie 1931-6-7 10654 Humboldt South Fork Mountain. Blake Lookout. 1726 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
  JEPS66935  Juncus bufonius W. L. Jepson 1921-8-7 9327 Humboldt Stone Lagoon Comment
  UC963870  Juncus bufonius H. E. Parks and S. T. Parks 1943-7-1 24254 Humboldt Spruce Cove North Coast Ranges, Trinidad 60 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
  HSC99140  Juncus effusus Cara Witte 2008-7-28 945 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  HSC71730  Juncus effusus subsp. pacificus M. A. Baker 1980-6-26 2450 Humboldt Near Sims Creek 610 Comment
  RSA246804  Juncus ensifolius Robert F. Thorne, Percy C. Everett 1965-8-7 35174 Humboldt Big Lagoon. 2 Comment
  UC1103035  Juncus ensifolius Joseph P. Tracy 1921-10-16 5970 Humboldt near Willow Creek (mouth of South Fork Trinity); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1103055  Juncus ensifolius Joseph P. Tracy 1900-9-9 947 Humboldt near mouth of Yager Creek; Northern Coast Ranges 60 Comment
  UC1152097  Juncus ensifolius Joseph P. Tracy 1938-7-12 16053 Humboldt w end Table Bluff Comment
  HSC40127  Juncus exiguus Thomas W. Nelson, James Nelson 1976-7-28 3075 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  HSC38189  Juncus lescurii Peter Sorensen 1976-7-14 Humboldt N spit Comment
  HSC83036  Juncus lescurii A. L. Eicher 1986-5-12 Humboldt Bordering Humboldt Bay, off of Vance Ave., 0.3 mi. S of Samoa Blvd. 1 Comment
  CAS-BOT-BC81147  Juniperus occidentalis Copeland 1903-7-4 3545 Humboldt Klamatha Comment
  CAS-BOT-BC235879  Keckiella corymbosa Frank W. Peirson 1926-7-13 7060 Humboldt Mad River, vicinity of Blue Lake Comment
  NY790279  Keckiella corymbosa J. P. Tracy 1937-7-11 15422 Humboldt Vicinity of Garberville Comment
  RSA424320  Keckiella corymbosa Unspecified 1920-7-15 s.n. Humboldt Arcata vicinity. Comment
  RSA44300  Keckiella corymbosa H. M. Pollard 1946-8-10 s.n. Humboldt Klamath River flood plain near Wilson Creek. Comment
  SBBG26952  Keckiella corymbosa C. B. Wolf 1927-8-30 Humboldt 2 mi S of Petrolia on Mattole River near where road crosses river Comment
  UCR136653  Keckiella corymbosa H. M. Pollard 1948-8-12 s.n. Humboldt Near mouth of Pearch Creek, near Orleans 366 Comment
  CAS-BOT-BC237834  Keckiella lemmonii Joseph P. Tracy 1930-7-25 8883 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC76253  Keckiella lemmonii Denis Kearns 1981-7-21 294 Humboldt Near Whiteys Peak 1585 Comment
  HSC61761  Kickxia elatine Ruby Van Deventer 1963-7-14 Humboldt Along the Klamath River at Pecwan Comment
  HSC58117  Kyhosia bolanderi G. L. Clifton, Griswold 1979-8-1 12079 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1051587  Lactuca serriola Joseph P. Tracy 1943-11-28 17461 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  HSC62179  Lapsana communis J. M. DiTomaso 1980-11-4 1997 Humboldt SE of junction of 11th St. and Hwy. 101., Arcata Comment
  UC1199076  Lathyrus glandulosus Joseph P. Tracy 1930-8-24 9170 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC162794  Lathyrus glandulosus Joseph P. Tracy 1906-6-10 2474 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS55246 Image available Lathyrus japonicus Joseph P. Tracy 1912-7-7 3736 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS55264  Lathyrus jepsonii var. californicus W. L. Jepson 1902-7-10 2010 Humboldt Martin's Ranch South Fork Trinity River Comment
  UC1222400  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1946-5-4 17523 Humboldt w side near sw corner Hoopa Valley Comment
  HSC14738  Lathyrus littoralis Norman H. Moe 1962-5-3 Humboldt Lanphere's Place Comment
  HSC48069  Lathyrus littoralis Thomas W. Nelson 1978-4-23 3878 Humboldt NW of Samoa Comment
  RSA245212  Lathyrus littoralis J. E. Walters 1966-4-13 35 Humboldt 1/4 miles N. of Samoa Pulp Mill. 5 Comment
  HSC101985  Lathyrus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 883 Humboldt Patterson Meadows 1566 Comment
  JEPS64859  Lathyrus nevadensis var. nevadensis Harley P. Chandler Jun 1901 1290 Humboldt Hupa Indian Reservation North Coast Ranges 1097 Comment
  HSC97914  Lathyrus polyphyllus Cara Witte 2007-6-14 279 Humboldt Along National Forest 1. Near Kinsey Ridge. 3/4 mile south of intersection with 4N06. 1256 Comment
  RSA64818  Lathyrus polyphyllus C. L. Hitchcock 1949-6-8 19090 Humboldt Ca 10 miles W of Willow Creek, near Highway #299. Comment
  UCD106339  Lathyrus polyphyllus K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  UC1222403  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt e of Korbel (on Murphy Ridge beyond the meadows); Bald Mountain, Murphy Ridge Comment
  UC1199068  Lathyrus vestitus Joseph P. Tracy 1933-6-24 12612 Humboldt Big Lagoon 152 Comment
  UC931755  Lathyrus vestitus C. L. Hitchcock 1949-6-7 19083 Humboldt 0.5 mi s Pepperwood (along Highway 101) Comment
  UC931760  Lathyrus vestitus C. L. Hitchcock 1949-6-8 19087 Humboldt 1 mi se Willow Creek (along Highway 299) Comment
  HSC2129  Lathyrus vestitus subsp. bolanderi Frances Oldridge 1946-1 Humboldt Willow Creek Comment
  RSA0008480  Layia carnosa Jennifer Wheeler 2010-5-6 568 Humboldt West of Arcata, Samoa Peninsula outer Humboldt Bay north of Manila 0 Comment
  JEPS13464  Layia gaillardioides Joseph P. Tracy 1936-6-9 14875 Humboldt Bear River Ridge 609 Comment
  POM318849  Ledum glandulosum subsp. columbianum Patricia Wilder 1968-8-21 4385 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  RSA15571  Leontodon nudicaulis C. B. Wolf 1927-8-28 1188 -A Humboldt Eureka Bay, on the road to Arcata. Comment
  UCSB30609  Leontodon saxatilis Edwards, David 1974-8-12 Humboldt North side of 7th St., just W. of its overpass of U.S. 101, Arcata 18 Comment
  RSA518828  Lepidium Joseph P. Tracy 1933-8-22 12992 Humboldt Mouth of Eel River. 3 Comment
  CAS-BOT-BC88801  Lepidium campestre M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles north of Garberville. Comment
  UC492270  Lepidium nitidum Joseph P. Tracy 1932-4-24 9809 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  CAS-BOT-BC12701  Lepidium oblongum Volney Rattan 1879-1-1 s.n. Humboldt Unspecified. Comment
  UC1537470  Leptosiphon latisectus Gordon H. True Jr. 1936-5-11 459 Humboldt 12 mi w Miranda (e slope of Elk Ridge); Elk Ridge 457 Comment
  CAS-BOT-BC341822  Lessingia nemaclada James T. Vale 1979-7-26 s.n. Humboldt Elk Creek Comment
  OBI28618  Lessingia nemaclada J. & B. Semple, B. Semple 1981-8-21 5692 Humboldt hwy 36, 4 mi S of Mad river park Comment
  POM260696  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt Northern Coast Ranges, Dinsmore's Ranch: On Van Duzen River opposite Buck Mountain 671 Comment
  HSC95585  Leucanthemum vulgare Andrea Pickart 2002-7-8 159 Humboldt N Spit Dunes, Mad River Co. Park, near parking area. 0 Comment
  UCSB6440  Leucanthemum vulgare Keator, Glenn 1958-6-18 Humboldt In fields from Mendocino county north through Washington, these collected at Petrolia Comment
  HSC48392  Lewisia leeana Brad Klipfel 1973-6-10 152 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC63201  Lewisia leeana M. A. Baker 1979-6-27 929 Humboldt Head of Grogan Hole at the head of Oregon Creek Comment
  CAS-BOT-BC272246  Leymus triticoides David D. Keck 1944-7-11 5496 Humboldt Cape Mendocino 3 Comment
  RSA168923  Lilaea scilloides Joseph P. Tracy 1950-6-18 18844 Humboldt Cape Mendocino, near the ocean shore, south of point of the Cape: Davis Creek. 3 Comment
  SBBG1025  Lilium columbianum H. and M. Dearing 1939-6-23 3698 Humboldt 5 mi N of Trinidad Comment
  CAS-BOT-BC508392  Lilium columbianum Doris K. Kildale 1927-7-10 3739 Humboldt Gans Prairie, Bald Hills Road Comment
  CAS-BOT-BC508407  Lilium columbianum A. M. Vollmer; L. Beane 1953-7-1 121 Humboldt Unspecified Comment
  HSC45280  Lilium columbianum Clifton Raymond Chesbrough 1971-7-5 40 Humboldt Along Fickle Hill Rd. Comment
  CAS-BOT-BC130640  Lilium kelloggii A. M. Vollmer; L. Beane 1953-7-1 117 Humboldt Freshwater Comment
  CAS-BOT-BC130646  Lilium kelloggii Alice Eastwood; John Thomas Howell 1937-6-23 4851 Humboldt 5 miles from Kneeland on road to Korbel Comment
  RSA74747  Lilium kelloggii Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On road to Bald Mountain, east of Korbel Comment
  CAS-BOT-BC130687  Lilium occidentale Doris K. Kildale 1925-7-1 1338 Humboldt Near Bayside Comment
  CAS-BOT-BC130688  Lilium occidentale A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt Table Bluff, near Eureka Comment
  RSA256588  Lilium occidentale Thomas W. Nelson, Doris Niles 1974-6-24 s.n. Humboldt Wiggens Ranch just west of the garbage dump. Comment
  SEINET3992036  Lilium occidentale Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-1 Humboldt Comment
  SEINET3992213  Lilium occidentale J. P. Tracy 1896-1 Humboldt Comment
  HSC57911  Lilium pardalinum subsp. pardalinum Gilbert Muth 1979-7-31 11520 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  CAS-BOT-BC132962  Lilium rubescens Doris K. Kildale 1927-7-17 3748 Humboldt Bug Creek 792 Comment
  HSC72679  Lilium rubescens J. P. Smith 1977-7-3 9243 Humboldt Road to Onion Mtn., 1/4 mile from its junction with USFS Rd. 10N41 762 Comment
  JEPS19585  Limnanthes douglasii Joseph P. Tracy 1933-5-20 12246 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  HSC103462  Limnanthes douglasii subsp. douglasii Thomas W. Nelson, Jane Nelson 2005-5-1 9306 Humboldt Between State Route 101 and exit to Sunnybrae 5 Comment
  UC1198595  Linanthus androsaceus Joseph P. Tracy 1940-5-17 16553 Humboldt Larrabee Valley 731 Comment
  UC427875  Linanthus androsaceus H. E. Parks, J. P. Tracy 1930-5-25 794 Humboldt vicinity Bridgeville; Laribee Valley Comment
  UC146166  Linanthus bicolor Joseph P. Tracy 1908-6-9 2650 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1198537  Linanthus filipes Joseph P. Tracy 1932-6-13 10156 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA46839  Linaria vulgaris Doris K. Kildale 1926-6-4 2090 Humboldt Trinidad. Comment
  UC902241  Linaria vulgaris Joseph P. Tracy 1941-9-1 16996 Humboldt Blue Lake 30 Comment
  UCSB8725  Linaria vulgaris Phillips, Priscilla 1958-6-7 Humboldt Patrick's Point; near Trinidad Comment
  HSC57865  Linnaea borealis subsp. longiflora G. L. Clifton 1979-7-31 11390 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UCSB13395  Linum usitatissimum Dearing, Hugh; Dearing, Margaret 1939-6-23 Humboldt 30 miles east of Arcata Comment
  JEPS19999  Lipocarpha micrantha Joseph P. Tracy 1931-9-7 9650 A Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC48978  Listera caurina Rudolf W. Becking 1979-7-15 Humboldt Fish Lake Comment
  UC303141  Listera cordata Joseph P. Tracy 1925-4-5 6956 Humboldt Kneeland Road crossing Northern Coast Ranges, Lawrence Creek 609 Comment
  HSC95191  Listera cordata var. nephrophylla Gordon Leppig, Tony LaBanca 2003-5-22 1943 Humboldt Humboldt Redwoods State Park, Fleismann's Grove 76 Comment
  JEPS37738  Lithocarpus densiflorus W. L. Jepson and W. W. Mott Jul 3 1903-Jul 5 1903 Humboldt Briceland; sw Humboldt County Comment
  CAS-BOT-BC36149  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1928-5-27 5947 Humboldt Kneeland Prairie Comment
  POM106448  Lithocarpus densiflorus var. densiflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  HSC102632  Lithophragma campanulatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1617 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC97180  Lithophragma campanulatum Benjamin Hart, Erin Lonergan 2007-6-13 10 Humboldt 1 mi. E of USFS Rd. NF1 on 5N04 1524 Comment
  UC1199423  Logfia filaginoides Joseph P. Tracy 1927-5-8 7972 Humboldt grassy slopes facing South Fork Eel River; Philipsville 121 Comment
  HSC10309  Lolium perenne E. W. Styskel 1964-4-25 69 Humboldt Alongside College Elementary School on Humboldt State College Campus, Arcata. Comment
  SEINET200586 Image available Lolium perenne J. P. Tracy 1937-6-6 15331 Humboldt Ferndale 15 Comment
  UC1222610  Lomatium californicum Joseph P. Tracy 1950-6-15 18804 Humboldt 7 mmi. n. Harris (chaparral area at Jenk's ranch) Comment
  SEINET200742  Lomatium dasycarpum Joeseph P. Tracy 1923-6-27 6380 Humboldt Trinity River Valley, near the South Fork 183 Comment
  UC642258  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1927-3-27 7852 Humboldt near the South Fork Trinity R. Valley 182 Comment
  HSC55320  Lomatium macrocarpum Terry Griswold, Butler 1979-7-10 7117 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC56050  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-31 11646 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC75960  Lomatium macrocarpum Overton, Butler 1979-7-24 9738 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC33054  Lomatium macrocarpum Thomas W. Nelson 1974-5-7 1233 Humboldt Beside airstrip at Kneeland Prairie Comment
  HSC96294  Lomatium macrocarpum April A. Allard, Gregory D. O'Connell 2005-6-3 1 Humboldt White Oak Opening, 19.3 mi. S of Hwy. 299 on NF1 1246 Comment
  JEPS14247  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Northern Coast Ranges, Brannan Mt. 1219 Comment
  HSC32917  Lomatium utriculatum Thomas W. Nelson, James Nelson 1973-5-28 965 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC40052  Lonicera conjugialis J. O. Sawyer 1970-6-24 2274 Humboldt W of Mill Creek Lakes. 1677 Comment
  CAS-BOT-BC240468  Lonicera hispidula H. E. McMinn 1922-8-5 345 Humboldt Van Duzen River Comment
  HSC3927  Lonicera involucrata var. ledebourii H. E. Parks May 1936 5675 Humboldt Spruce Cove, Trinidad. Comment
  RSA18019  Lonicera involucrata var. ledebourii C. B. Wolf 1927-8-22 770 Humboldt Big Lagoon. Comment
  SBBG69576  Lonicera involucrata var. ledebourii R. Hartwell 1938-8-6 Humboldt near Arcata Comment
  HSC97945  Lotus crassifolius var. crassifolius Cara Witte 2007-6-26 357 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  UC80965  Lotus formosissimus T. S. Brandegee Jun 1891 Humboldt Eureka Comment
  HSC71602  Lotus humistratus M. A. Baker 1980-6-26 2417 Humboldt Near Sims Creek 610 Comment
  JEPS55515  Lotus humistratus Mrs. M. H. Manning 1901-5 69 Humboldt near Hupa 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
  UC726367  Lotus purshianus var. purshianus A. A. Heller 1923-7-9 13778 Humboldt 5 mi from Arcata (near Blue Lake) Comment
  SEINET3560061 Image available Lotus stipularis H. E. Parks 1932-7-1 Humboldt Bishop Pine Lodge, Trinidad 61 Comment
  POM51553  Luina hypoleuca Joseph P. Tracy 1917-9-2 4839 Humboldt Grouse Mountain. 1524 Comment
  UC177184  Lupinus adsurgens Joseph P. Tracy 1913-6-19 4200 A Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River, Dinsmore' 762 Comment
  RSA138212  Lupinus adsurgens var. lilacinus Volney Rattan 1882-06 16 Humboldt Humboldt Comment
  UC170029  Lupinus affinis Joseph P. Tracy 1912-6-9 3678 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC1776380  Lupinus albicaulis R. Spellenberg 1990-7-9 Humboldt Extreme E edge county, 7 air mi. WNW of Hyampom, 42 mi S of Calif Hwy 299 and Berry Summit on USFS Rd. 1, ca 1 mi S of Blake Mtn. on South Fork Mountain. 1767 Comment
  SEINET10488366  Lupinus albicaulis John O. Sawyer, R. J. Cole 1977-7-3 Sawyer 3016 Humboldt Hoopa quad. T8n,r5e,sec.14. Environs of mud spring. Big hill road. White fir Forest (f.s.8n01) 1524 Comment
  RSA406972  Lupinus albicaulis var. albicaulis H. M. Pollard 1947-8-9 s.n. Humboldt Roadside west of Orleans Comment
  CHSC32840  Lupinus arboreus Lora L. Anderson 1981-4-26 17 Humboldt Ca. 0.5 mi e of ocean (Moonstone Beach) 0.5 mi w of Hwy 101, 11.5 mi n of Arcata. 0 Comment
  HSC14774  Lupinus arboreus J. W. Johnson 1961-11-20 Humboldt Arcata, Christenson Farm., Samoa Peninsula Comment
  HSC14775  Lupinus arboreus J. W. Johnson 1961-9-3 1078 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  SD81280  Lupinus arboreus Darley F. Howe 1969-5-30 4586 Humboldt 2.4 miles south of Orick on Hwy 101, fresh-water lagoon Comment
  UC146918  Lupinus arboreus Harley P. Chandler May, 1901 1095 Humboldt Scotia; North Coast Ranges, Scotia 60 Comment
  UCD106592  Lupinus arboreus Linda M. Barker 1976-5-13 1494 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA296737  Lupinus arboreus var. arboreus J. P. Smith, T. W. Nelson 1977-6-30 9218 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC47063  Lupinus bicolor J. P. Smith, Thomas W. Nelson 1977-6-30 9198 Humboldt Samoa Peninsula just E of the drag strip. Comment
  SEINET1906216  Lupinus bicolor Barbara Ertter, Thomas J. Delendick 1987-1 6924 Humboldt Vista Point just W of Berry Summit on Hwy 299, ca 15 airmiles E of Arcata; 914 Comment
  RSA276277  Lupinus bicolor subsp. umbellatus Lyman D. Benson 1929-7-19 1860 Humboldt Dyerville to Mat[t]ole River. Comment
  CAS-BOT-BC205381  Lupinus elmeri Joseph P. Tracy 1930-7-16 8954 Humboldt South Fork Mountain; open glades along summit near Blake lookout 1737 Comment
  SEINET12154564  Lupinus latifolius J. P. Tracy 1941-1 16916 Humboldt Panther Gap on the Bull Crk - Mattole Rd Comment
  HSC74225  Lupinus latifolius subsp. viridifolius M. A. Baker 1980-7-22 3076 Humboldt Near Salmon Mtn. 1820 Comment
  HSC98892  Lupinus latifolius var. latifolius Cara Witte 2008-6-18 749 Humboldt Horse Mountain Botanical Area. Approximately 1 mile east of junction 6N36 and 6N36A. 1394 Comment
  HSC98986  Lupinus latifolius var. latifolius Cara Witte 2008-7-2 807 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC1776379  Lupinus latifolius var. latifolius R. Spellenberg 1990-7-9 Humboldt Extreme E edge county, 14 air mi. SW of Burnt Ranch, 14 mi S of Calif Hwy 299 and Berry Summit on USFS Rd. 1, on Pilot Ridge. 1371 Comment
  UC1223264  Lupinus littoralis Joseph P. Tracy 1934-7-21 13481 Humboldt Samoa Sand Dunes Comment
  UC1949190  Lupinus nanus Barbara Ertter with Thomas J. Delendick 1987-5-16 6923 Humboldt Vista Point just W of Berry Summit on Hwy 299, ca 15 airmiles E of Arcata; S-facing slope Comment
  UC169346  Lupinus polyphyllus var. pallidipes Joseph P. Tracy 1912-6-9 3693 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  HSC57899  Lupinus tracyi Overton, Butler 1979-7-31 11479 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC76441  Lupinus tracyi D. K. Imper 1981-8-12 902 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  SEINET10490278  Lupinus vallicola subsp. apricus Charles Piper Smith 1948-5-10 Smith 48254 Humboldt Hwy 101, Garberville, 0.3 mi N. Comment
  HSC59591  Lupinus variicolor Rick Lundquist 1979-4-6 2 Humboldt Arcata, SE Corner of 7th and Union St. 24 Comment
  HSC56398  Luzula comosa Griswold, Butler 1979-7-11 6968 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC69870  Luzula comosa Thomas W. Nelson 1978-5-28 4090 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC45019  Luzula comosa R. Sutherland 1978-4-23 12 .23478 Humboldt Telegraph Ridge just NW of Green Ridge 695 Comment
  CAS-BOT-BC436735  Luzula comosa var. laxa Doris Kildale Gillespie 1931-6-7 10661 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  UC1152138  Luzula comosa var. laxa Joseph P. Tracy 1947-7-5 17816 Humboldt Meadow at Box Camp, on west side Trinity Summit 1463 Comment
  JEPS26544  Lycopodium clavatum Don Branscomb July, 1959 Humboldt Trinidad Comment
  SBBG56351  Lycopodium clavatum H. E. and W. K. Parks 1932-7-30 1132 Humboldt Camp 21, Hammond Lumber Co, Trinidad 152 Comment
  UCSB12371  Lysichiton americanus Dearing, Hugh; Dearing, Margaret 1939-5-25 Humboldt Near Samoa Comment
  JEPS42814  Lysichiton americanus W. L. Jepson 1902-6-24 1925 Humboldt Eureka Hupa Indian Reservation, Eureka Comment
  SEINET11261198  Lythrum hyssopifolia Rick Lundquist 1979-5-18 100 Humboldt Arcata South Quadrangle. South G Street ca 1 mile south of Samoa Boulevard.; 0 0 Comment
  UC562527  Lythrum hyssopifolia Joseph P. Tracy 1934-7-30 13511 Humboldt in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  HSC46151  Lythrum hyssopifolia J. P. Smith 1973-5-26 6814 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC90841  Lythrum hyssopifolia Leonel Arguello 1989-6-10 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, at the end of the Fernstrom-Root trail, along W border of the salt marsh. Comment
  UC494147  Madia elegans H. E. Parks, J. P. Tracy 1930-5-25 882 Humboldt Laribee Valley Comment
  CAS-BOT-BC342804  Madia elegans Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, east side of Klamath River Comment
  JEPS19272  Madia elegans Richard Snow 1957-8-31 306 Humboldt 4 mi n Garberville (at Dean Creek Lodge) Comment
  UC127612  Madia exigua Harley P. Chandler June, 1901 1330 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  CAS-BOT-BC344356  Madia exigua Carl B. Wolf 1937-6-19 8910 Humboldt Van Duzen River, 3/10 mi. above Bridgeville 121 Comment
  CAS-BOT-BC343016  Madia gracilis Joseph P. Tracy 1937-7-29 15596 Humboldt South Fork Mountain. West slope near top, at Hyampom Trail 1676 Comment
  HSC58706  Madia gracilis Griswold, Butler 1979-7-10 7133 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC97224  Madia gracilis Bryan Atkinson, Jenny Lynn Hutchinson 2007-6-11 5 Humboldt Near Grouse Mtn., 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1341 Comment
  UC166273  Madia gracilis Joseph P. Tracy 1901-7-31 1236 Humboldt near Hydesville 60 Comment
  RSA47161  Madia gracilis subsp. gracilis Doris K. Kildale 1927-7-1 3619 Humboldt Alton Hill Comment
  RSA249398  Madia madioides D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-17 5696 Humboldt McKeown Ranch north of Dinsmore Comment
  CAS-BOT-BC508503  Maianthemum dilatatum Wayne Roderick 1967-7-22 s.n. Humboldt Trinidad 30 Comment
  CDA39348  Maianthemum dilatatum Gordon Leppig 1998-5-11 760 Humboldt Northern California Peatlands; Big Lagoon County Park. Big Lagoon Bog. Comment
  HSC15597  Maianthemum dilatatum W. D. Stevens 1964-5-12 15 Humboldt E end of 14th St., Arcata Comment
  HSC60294  Maianthemum dilatatum Phyllis Krieg 1979-4-28 Humboldt Azalea Park along trail, McKinleyville 30 Comment
  POM87668  Maianthemum dilatatum Le Roy Abrams, Rimo C. Bacigalupi 8300 Humboldt Near northern county line Comment
  RSA244984  Maianthemum dilatatum M. N. Gold 1966-5-15 25 Humboldt Dry Lagoon State Park, 13 miles north of Trinidad Comment
  HSC48830  Maianthemum racemosum subsp. amplexicaule Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 40 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC40874  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson 1976-7-9 3005 Humboldt S of Mt. lassic 1707 Comment
  HSC15890  Maianthemum stellatum T. M. Mingo May 1965 Humboldt E of College Cove, N of Trinidad Comment
  RSA377722  Maianthemum stellatum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3509 Humboldt Alder Springs 1524 Comment
  HSC40015  Malacothrix floccifera Thomas W. Nelson, Jane P. Nelson 1976-7-1 2916 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  UC127825  Malacothrix floccifera Harley P. Chandler June, 1901 1360 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC15994  Malva nicaeensis Paul Shields 1955-6-3 Humboldt HSC campus Comment
  SEINET4929765  Marah fabacea Unknown 2002-8-22 90 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  HSC73820  Marah oregana Gail Newton 1980-6-7 135 Humboldt Near Brush Mtn. 1128 Comment
  OBI35884  Marah oregana David J. Keil 1983-7-1 17293 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  HSC98545  Marah oregana Cara Witte 2008-6-2 674 Humboldt Along National Forest 1. North of Kinsey Ridge. 1291 Comment
  POM128304  Marah oregana H. P. Chandler 1901-6-10 1407 Humboldt Saint's Rest; Klamath River. 152 Comment
  HSC45610  Matricaria discoidea Diane L. Reed 1978-5-7 70 Humboldt E fork of Willow Creek, 34 mi. from Hwy. 101 on Hwy. 299 Comment
  UC1197424  Medicago lupulina Joseph P. Tracy 1911-7-10 3493 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UCD107771  Medicago lupulina W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  HSC37910  Medicago polymorpha Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  UC1145133  Melica aristata Joseph P. Tracy 1937-7-25 15549 Humboldt 2 mi e Grove's Prairie (on ridge); Trinity Summit 1524 Comment
  UC34137  Melica californica Joseph Burtt Davy 1899-6-8 5343 Humboldt Bells Springs Comment
  HSC74230  Melica harfordii M. A. Baker 1980-7-15 2981 Humboldt Near Whiting Ridge. 1341 Comment
  UCD87509  Melica harfordii August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road, Redwood Highway, north of Garberville. Comment
  SEINET11678859  Melica harfordii H. P. Chandler 1901-1 1477 Humboldt Klamath River, North Coast Ranges 366 Comment
  HSC99431  Melica subulata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 80 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC34140  Melica subulata Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5405 Humboldt Hubbard's Station; North Coast Ranges Comment
  UC552706  Melica subulata Joseph P. Tracy 1935-5-25 13898 Humboldt Dobbyn Creek; Northern Coast Ranges 152 Comment
  HSC10375  Melica torreyana A. H. Murphy 1951-4-18 20 Humboldt Ft. Seward. 183 Comment
  HSC79428  Melica torreyana Kenneth Clark 1980-3-22 529 Humboldt Along access trail to Dead Man's Gulch. 76 Comment
  UC16145  Melilotus albus Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5900 Humboldt Klamath R. Comment
  HSC71635  Melilotus albus J. P. Smith 1973-5-26 6875 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC195432  Mentha aquatica Joseph P. Tracy 1915-9-5 4665 Humboldt Eureka; Northern Coast Ranges 0 Comment
  JEPS63455  Mentha pulegium Joseph P. Tracy 1923-6-20 6336 Humboldt Briceland 304 Comment
  HSC98868  Mentha pulegium Cara Witte 2008-8-5 991 Humboldt Along National Forest 1 on Kinsey Ridge. 1/2 north of intersection with Forest Service Road 4N06. 1291 Comment
  UCD125120  Mentha pulegium Joseph P. Tracy 1946-8-25 17642 Humboldt Grizzly Buff. Along Eel River. 18 Comment
  JEPS63445  Mentha suaveolens W. L. Jepson 1936-8-11 17866 Humboldt South Fork Eel River Philipsville (Philipsville); South Fork Eel River Comment
  SEINET200815  Mentzelia dispersa Joseph P. Tracy 1908-7-30 2843 Humboldt Northwest slope of Buck Mountain 1219 Comment
  UC154037  Menziesia ferruginea Joseph P. Tracy 1908-6-10 2676 Humboldt Region about Humboldt Bay, Freshwater Creek Freshwater Creek; Northern Coast Region, Region about Humboldt Bay, Freshwater 0 Comment
  UC129318  Micropus californicus var. californicus Harley P. Chandler June, 1901 1358 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  CAS-BOT-BC348374  Micropus californicus var. californicus S. K. Harris; J. P. Tracy 1942-6-15 s.n. Humboldt Harris Road, 1 mile east of Garberville 30 Comment
  UC164795  Microseris acuminata Joseph P. Tracy 1903-5-23 1891 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC1239517  Microseris bigelovii Joseph P. Tracy 1922-5-28 6057 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  UC204748  Microseris bigelovii Joseph P. Tracy 1918-7-3 4993 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  JEPS36130  Microseris laciniata subsp. laciniata W. L. Jepson 1934-5-8 16720 Humboldt Redway n South Fork Eel River; Redway Comment
  UC176457  Microseris laciniata subsp. laciniata Joseph P. Tracy 1912-7-21 3770 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC582440  Microseris nutans Joseph P. Tracy 1935-7-27 14307 Humboldt McKay Prairie Trinity Summit 1584 Comment
  HSC6101  Microseris nutans W. K. Parks 1933-7-15 5263 Humboldt South Fork Mtn. 1677 Comment
  POM247189  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt South Fork Mountain, near McKay Camp 1677 Comment
  HSC102528  Microsteris gracilis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1515 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC58236  Microsteris gracilis Walter Overton 1979-8-1 12394 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1196767  Mimulus alsinoides Joseph P. Tracy 1946-6-23 175900 Humboldt Kneeland Prairie 762 Comment
  HSC20691  Mimulus aurantiacus var. aurantiacus S. J. Hawks 1965-5-18 83 Humboldt Clam Beach. Comment
  HSC20692  Mimulus aurantiacus var. aurantiacus D. E. Anderson 1961-8-25 1755 Humboldt 1.5 miles S of Trinidad. overlooking beach Comment
  UC1063411  Mimulus aurantiacus var. aurantiacus H. L. Person 1932-7-23 Humboldt road e Korbel; Eureka Quadrangle Comment
  UC1196799  Mimulus breweri Joseph P. Tracy 1912-7-31 3920 Humboldt near summit Buck Mountain; Northern Coast Ranges 1676 Comment
  HSC60081  Mimulus guttatus M. A. Baker 1978-5-6 472 Humboldt Bald Hills Rd., between Klamath River and French Camp Rd. Comment
  HSC76255  Mimulus guttatus Denis Kearns 1981-7-23 403 Humboldt Near Whiteys Peak. 1524 Comment
  HSC20749  Mimulus guttatus T. M. Mingo May 1965 Humboldt About 100 ft. N of the intersection of Fairhaven Dr. and old Hwy. 101 Comment
  UC162578  Mimulus inodorus Joseph P. Tracy 1911-7-7 3409 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  RSA535811  Mimulus kelloggii David M. Thompson 1986-3-26 856 Humboldt Somes Bar. Along Hwy 96, 100 ft S of Siskiyou Co. line; at confluence of Klamath and Salmon rivers. 61 Comment
  UC41888  Mimulus kelloggii C. C. Marshall 1888-1 Humboldt Comment
  HSC33170  Mimulus moschatus Thomas W. Nelson 1973-8-19 1110 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC55628  Mimulus moschatus Overton, Butler 1979-7-24 9626 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UC1196834  Mimulus nasutus Joseph P. Tracy 1912-7-26 3828 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC55988  Mimulus primuloides var. primuloides Overton, Butler 1979-7-31 11403 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1196780  Mimulus pulsiferae Joseph P. Tracy 1908-6 2828 Humboldt Buck Mountain Northern Coast Ranges (nw slope, along waterway) 1219 Comment
  UC1196783  Mimulus pulsiferae Joseph P. Tracy 1937-6-27 15383 Humboldt w mouth of S. Fork of Trinity River; Friday Ridge 1219 Comment
  SEINET6904195  Minuartia californica Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  HSC16010  Modiola caroliniana W. D. Stevens 1967-7-16 46 Humboldt Along dirt road from old Hwy. 101 to top of N bank of Mad River Comment
  UC673055  Modiola caroliniana Joseph P. Tracy 1940-10-18 16777 Humboldt Trididad 3 Comment
  HSC74566  Moehringia macrophylla M. A. Baker 1980-5-17 1278 Humboldt Near Le Perron Peak 1066 Comment
  HSC57942  Monardella glauca G. L. Clifton, Griswold 1979-7-31 11612 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC213510  Monardella odoratissima subsp. glauca Joseph P. Tracy 1919-9-22 5262 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC2035920  Monardella odoratissima subsp. pallida Joseph P. Tracy Jul 16 1930-Jul 19 1930 8911 Humboldt South Fork Mountain near McKay Camp; Northern Coast Ranges 1676 Comment
  UCLA62435  Monardella villosa subsp. globosa C. Epling, Wm. Robison 1935-7-24 Humboldt Dyerville Comment
  UC577376  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15427 Humboldt Vicinity Garberville 121 Comment
  HSC98917  Monardella villosa subsp. villosa Cara Witte 2008-7-3 830 Humboldt Intersection of Friday Ridge Rd (6N08) and 5N39 1512 Comment
  UC21672  Monotropa hypopitys J. Burtt Davy 1899-6-24 5773 Humboldt Hoopa Valley Comment
  UC1223242  Montia chamissoi Joseph P. Tracy 1951-6-14 19415 Humboldt Snow Camp Meadows Comment
  UC673011  Montia diffusa Joseph P. Tracy 1930-8-24 9165 Humboldt Kneeland Prairie 762 Comment
  UC1223246  Montia diffusa Joseph P. Tracy 1950-5-7 18652 Humboldt road to South Yager Valley is 5 mi n of Bridgeville (Valley of South Yager Creek); Valley of South Yager Creek 762 Comment
  UC161062  Montia diffusa Joseph P. Tracy 1906-6-10 2487 Humboldt Kneeland Prairie, near Haughey's Mill Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 609 Comment
  UC673012  Montia diffusa Joseph P. Tracy 1937-6-27 15379 Humboldt w of mouth of South Fork Trinity River (Four-Mile Creek); Four-Mile Creek 670 Comment
  CAS-BOT-BC444831  Montia fontana D. E. Anderson; Thomas Nelson; S. Dowty 1972-6-14 5587 Humboldt Mt. Lassic & two smaller peaks to immediate east. 1767 Comment
  UC275480  Montia fontana Joseph P. Tracy 1925-3-15 6941 Humboldt Blue slide on Van Duzen River Van Duzen River; Northern Coast Ranges, Blue slide, Van Duzen River 91 Comment
  CAS-BOT-BC445163  Montia parvifolia Harley P. Chandler 1901-5-1 1261 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  HSC55167  Montia parvifolia Gilbert Muth 1979-8-1 12160 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC162971  Montia parvifolia Joseph P. Tracy 1911-6-4 3226 Humboldt 5 mi from The Coast (along Little River); Northern Coast Region, Little River 121 Comment
  UC275280  Montia parvifolia Joseph P. Tracy 1923-6-20 6311 Humboldt White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  JEPS17211  Montia parvifolia Milo S. Baker 1923-7-31 143 a Humboldt 6 mi s of Kneeland (and w of Iaqua, Booths Run); North Coast, Booths Run Comment
  HSC16098  Morella californica W. R. Brigham 1962-4-7 2 Humboldt S of Big Lagoon Comment
  HSC47501  Morella californica Sheila Logan 1978-4-10 27 Humboldt Foot of Hiller Ave. at Ocean Rd., Pacific Ocean and Mad River 46 Comment
  UCD110311  Morella californica Joseph P. Tracy 1948-4-4 17956 Humboldt Near Samoa, on Humboldt Bay. 6 Comment
  RSA44542  Muhlenbergia andina Henry M. Pollard 1947-8-19 s.n. Humboldt Wilson Creek near Orleans. Comment
  CAS-BOT-BC275346  Muhlenbergia mexicana Henry M. Pollard 1956-10-9 s.n. Humboldt Fig Tree Riffle at Woodson Mine, Klamath River, Orleans Comment
  JEPS70787  Myosotis discolor Joseph P. Tracy 1925-5-10 6963 Humboldt near Hydesville; North Coast Ranges 91 Comment
  UC1239639  Myosotis discolor Joseph P. Tracy 1924-8-3 6748 Humboldt Stone Lagoon Northern Coast Region, Stone Lagoon 6 Comment
  HSC59201  Myosotis sylvatica Terry Roth 1979-5-20 66 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  RSA461902  Myrica californica H. E. McMinn 1931-6-28 2456 Humboldt Orick to Requa Comment
  HSC77886  Myriophyllum aquaticum Jim McBride 1978-5-11 546 Humboldt McKinleyville, behind Bigfoot Gas Station Comment
  HSC15606  Narcissus pseudonarcissus J. L. Baker 1965-4-14 52 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  HSC98157  Narcissus pseudonarcissus N. D. Dennis 1965-4-8 15 Humboldt Old Arcata Rd. at Jacoby Creek Rd. Comment
  HSC55077  Navarretia capillaris G. L. Clifton, Griswold 1979-7-31 11689 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC98609  Navarretia divaricata subsp. divaricata Cara Witte 2008-6-27 759 Humboldt Approximately 2 miles north-east of intersection 5N09 and Friday Ridge Rd. 1565 Comment
  UC908394  Navarretia divaricata subsp. vividior Joseph P. Tracy 1934-7-9 13326 Humboldt n of Bell Springs; Northern Coast Ranges, Chamise Mt. 1066 Comment
  UC1198607  Navarretia intertexta Joseph P. Tracy 1934-7-9 13345 Humboldt Dobbyn Creek 152 Comment
  UC909128  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  UC906677  Navarretia squarrosa Joseph P. Tracy 1942-7-18 17282 Humboldt Garberville 152 Comment
  SEINET12279170  Navarretia tagetina J. P. Tracy 1950-1 18862 Humboldt Dobbyn Creek, 3 mi NE of Alderpoint 213 Comment
  JEPS7595  Nemacladus capillaris Joseph P. Tracy 1930-7-10 8865 Humboldt Brannan Mt. 1219 Comment
  UC602566  Nemacladus capillaris Joseph P. Tracy 1930-7-10 8865 Humboldt Brannan Mt. 1219 Comment
  HSC99204  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 mi. N of Willow Creek along Rd. on E side of Trinity River Comment
  JEPS3218  Nemophila heterophylla Joseph P. Tracy 1937-5-17 15292 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  SBBG6129  Nemophila menziesii var. atomaria H. and M. Dearing 1939-4-24 3424 Humboldt near Dyerville Comment
  HSC13578  Nemophila menziesii var. atomaria D. E. Anderson 1962-3-4 1927 Humboldt About 2 mi. S of Trinidad Comment
  HSC58023  Nemophila parviflora G. L. Clifton 1979-7-31 11829 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC146186  Nemophila parviflora Joseph P. Tracy 1908-6 2726 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley Van Duzen River 304 Comment
  UC1198784  Oemleria cerasiformis Joseph P. Tracy 1921-3-13 5420 Humboldt Alton; Northern Coast Region 30 Comment
  UC1222314  Oemleria cerasiformis Joseph P. Tracy 1951-6-21 19514 Humboldt opposite Willow Creek; Trinity Valley Comment
  UC183607  Oemleria cerasiformis Joseph P. Tracy 1913-6-13 4096 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC38335  Oenanthe sarmentosa Peter Sorensen 1976-8-11 Humboldt King Salmon Comment
  CDA38492  Oenanthe sarmentosa Margaret Bellue Jul 1933 s.n. Humboldt [no further data] 0 Comment
  HSC23225  Oenanthe sarmentosa Thomas O. Erickson 1971-10-28 1 Humboldt Luffenholtz Beach off Hwy. 101 N of Moonstone Comment
  JEPS35818  Oenanthe sarmentosa Rimo Bacigalupi and L. R. Heckard 1964-7-28 8964 Humboldt 1/8 mi. above Shelter Cove (near water tanks for supplying Shelter Cove) Comment
  UC1196948  Oenothera glazioviana J. P. Tracy 1898-9-25 281 Humboldt along streets Eureka 0 Comment
  CDA38174  Oenothera villosa subsp. strigosa E. C. Whitney 1966-8-3 s.n. Humboldt Orleans; Ferris Property. 0 Comment
  UC585979  Orobanche californica subsp. californica Joseph P. Tracy 1924-8-3 6761 Humboldt Big Lagoon. Comment
  HSC96246  Orobanche uniflora Kaylea Eickhoff, Cara M. Witte 2005-6-10 10 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  HSC102035  Orthilia secunda M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 938 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  HSC54859  Orthilia secunda G. L. Clifton, Griswold 1979-7-25 10757 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC1197566  Orthilia secunda Joseph P. Tracy 1940-7-7 16663 Humboldt Grouse Mt. on Friday Ridge 1371 Comment
  HSC56063  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-7-31 11707 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC82415  Orthocarpus imbricatus Thomas W. Nelson 1979-7-11 5031 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  HSC56175  Osmorhiza berteroi G. L. Clifton, Terry Griswold 1979-8-1 12082 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  JEPS15910  Osmorhiza berteroi W. L. Jepson 1932-7-26 16419 Humboldt Bull Creek Comment
  HSC48765  Osmorhiza occidentalis Brad Klipfel 1973-6-16 101 Humboldt Along ridge trail SE of N Trinity Mountain 1829 Comment
  HSC59074  Oxalis articulata subsp. rubra Thomas Wood 1979-5-3 147 Humboldt In Arcata, in front yard at 3799 Spear Ave. 9 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
  SDSU604  Oxalis oregana D. F. Howe 1962-5-22 3309 Humboldt 3 miles east of Orick on Bald Mt. road. 396 Comment
  JEPS108632  Oxalis oregana H. G. Baker Humboldt 1 mi S of Burlington Comment
  UC668042  Oxalis trilliifolia Joseph P. Tracy 1936-8-8 15143 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC318150  Packera bolanderi var. bolanderi J. Burtt Davy; W. C. Blasdale 1899-6-12 5453 Humboldt near Elk Prairie Comment
  CAS-BOT-BC318156  Packera bolanderi var. bolanderi Doris K. Kildale 1927-8-13 3856 Humboldt Across the Van Duzon River from Swimmer's Delight near Sting's Station Comment
  HSC95156  Packera bolanderi var. bolanderi Gordon Leppig 2002-6-27 1763 Humboldt Grizzly Creek State Park; 300 m NW of campground on trailside above Grizzly Creek 100 Comment
  UC1254537  Panicum acuminatum var. acuminatum R. Spellenberg 1966-9-8 1630 Humboldt 5 mi s Garberville (bank of South Fork Eel River at Hwy 101); bank of S Fk Eel River Comment
  UC526841  Panicum acuminatum var. acuminatum Joseph P. Tracy 1927-8-7 8313 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  RSA10050  Panicum capillare Joseph P. Tracy 1930-10-12 9207 Humboldt Eel River, Alton to Fortuna Comment
Read comments
Oct 2 2011
  CDA2147  Panicum miliaceum T. R. Haig 1975-8-27 Humboldt Korbel. 0 Comment
  UC526842  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1927-8-7 8314 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  SJSU10754  Parapholis incurva H. T. Harvey 1977-7-5 601 Humboldt Elk River Spit by Humboldt Bay Comment
  CAS-BOT-BC253924  Parapholis incurva S. K. Harris; J. P. Tracy 1936-6-6 3218 Humboldt Near railroad station, Eureka Comment
  RSA624797  Parapholis strigosa Gordon Leppig 1998-6-6 801 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, Butchers Slough about 50m w of Interpretive Center 1 Comment
  CHSC69504  Parentucellia viscosa Vernon Oswald; Lowell Ahart 1997-9-4 8855 Humboldt Samoa Dunes Recreation Area at the south end of the North Split separating Humboldt Bay from the ocean. Near sea level. Comment
  HSC72425  Parentucellia viscosa J. P. Smith 1970-6-7 3812 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  UC902125  Paxistima myrsinites Joseph P. Tracy 1942-6-23 17245 Humboldt 2 mi. e. Box Camp; Trinity Summit 1524 Comment
  HSC20928  Pedicularis densiflora R. A. Rasp 1964-4-25 33 Humboldt 2.5 mi. E of Willow Creek off of Hwy. 299 Comment
  HSC102174  Pedicularis racemosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1086 Humboldt Patterson Meadows 1566 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
  CAS-BOT-BC69341  Pellaea brachyptera Joseph P. Tracy 1939-8-16 16423 Humboldt Grouse Mountain 1524 Comment
  UC1242078  Pellaea mucronata var. mucronata Donald Branscomb April, 1959 Humboldt Bear Butte 868 Comment
  JEPS7203  Penstemon anguineus W. L. Jepson 1902-7-24 2112 Humboldt Trinity Summit 1828 Comment
  RSA63666  Penstemon anguineus Milo S. Baker 1947-8-10 11911 Humboldt Near end of Forest Rd from Hoopa towards Trinity Summit. 1372 Comment
  UC1245389  Penstemon anguineus Joseph T. Gregory 1933-7-16 449 Humboldt nr MacKay Camp (edge of swamp); nr MacKay Camp 1737 Comment
  UC1586982  Penstemon laetus Juha Pykala and D. H. Norris 1987-6-11 1548 Humboldt ne Bee Mountain; Six Rivers National Forest, ne of Bee Mountain 609 Comment
  HSC55991  Penstemon procerus var. brachyanthus Walter Overton, Marvin Butler 1979-7-31 11417 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 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
  UC165061  Pentachaeta alsinoides Joseph P. Tracy 1903-5-23 1890 Humboldt dry hillside at Alder Point; Eel River 243 Comment
  RSA0094699  Pentagramma triangularis Ira L. Wiggins 1957-6-21 14139 Humboldt On E side of road, 1 mi. S of Garberville. Comment
  BLMAR425  Perideridia Jennifer Anthony-Wheeler 2005-7-28 425 Humboldt Lacks Creek, Growing in Flyette prairie 487 Comment
  UC709387  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1941-8-24 17038 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC98551  Perideridia howellii Cara Witte 2007-8-1 613 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  UC642345  Perideridia howellii Joseph P. Tracy 1930-10-26 9237 Humboldt Valley of South Yager Creek 762 Comment
  POM89787  Perideridia parishii subsp. latifolia Joseph P. Tracy 1919-9-18 5231 Humboldt Trinity Summit 1829 Comment
  CAS-BOT-BC413505  Persicaria amphibia H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  HSC95377  Persicaria lapathifolia Andrea Pickart 2002-8-7 193 Humboldt Arcata Marsh along I St. 20 Comment
  CHSC116958  Petasites frigidus var. palmatus Matthew Forster 2013-4-7 Humboldt Along trail adjacent to Trinidad State Beach, Coastal Bluffs. 47 Comment
  CHSC68488  Petasites frigidus var. palmatus Vernon H. Oswald 1997-4-10 8334 Humboldt Hwy. 299 between Blue Lake and Willow Creek, on the east side of Lord Ellis Summit. Along this section of highway. 640 Comment
  UC129570  Petasites frigidus var. palmatus Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC26590  Petrorhagia dubia D. E. Anderson 1973-4-20 Humboldt Flood plain of Eel River 5 mi. E of Founders Tree area, Avenue of the Giants Comment
  HSC65092  Petrorhagia dubia J. P. Smith, J. O. Sawyer 1976-5-2 8625 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  BLMAR423  Phacelia bolanderi Jennifer Wheeler 2007-9-5 423 Humboldt Red Mountain, oil drum road near culvert 1219 Comment
  JEPS1545  Phacelia corymbosa Joseph P. Tracy 1926-6-20 7624 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  HSC75548  Phacelia mutabilis J. O. Sawyer 1977-7-3 3014 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC47795  Phalaris minor Michael A. Watkins 1978-6-10 12 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  HSC55709  Philadelphus californicus Overton, Butler 1979-7-26 10098 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  CAS-BOT-BC76565  Philadelphus lewisii Doris K. Kildale 1927-7-3 3634 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC76569  Philadelphus lewisii L. R. Abrams 1916-7-11 6006 Humboldt Between Blocksberg and Bridgeville Comment
  JEPS49607  Philadelphus lewisii Milo S. Baker 1923-7-20 78 Humboldt between head of Yager Creek and Bridgeville Comment
  UC154110  Philadelphus lewisii Joseph P. Tracy 1908-6 2886 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC161489  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3318 Humboldt Willow Creek Northern Coast Ranges (near its mouth, creek is tributary of Trinity River) 304 Comment
  UC56721  Philadelphus lewisii Harley P. Chandler June, 1901 1333 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC54708  Phleum alpinum Overton, Butler 1979-7-26 10055 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC97276  Phleum alpinum M. Mesler 2007-7-15 783 Humboldt Near Grouse Mtn., 0.9 mi. S of NF 1 on FS Rd. 5N04 1582 Comment
  UC34058  Phleum alpinum J. P. Tracy 1901-5-30 1106 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC526854  Phleum alpinum Joseph P. Tracy 1934-7-18 13447 Humboldt Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC70904  Phleum pratense Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5689 Humboldt Hoopa Valley; North-Western California Comment
  HSC55333  Phlox adsurgens Griswold, Butler 1979-7-12 7177 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1191119  Phlox adsurgens Joseph P. Tracy 1925-6-7 7058 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  UCD118236  Phlox adsurgens H. P. Olmo 1928-6-10 s.n. Humboldt Wooley Creek. Comment
  HSC100598  Phlox gracilis Carl C. Marshall Apr 1887 373 Humboldt Hoopa Valley. Comment
  UC52806  Phlox gracilis J. Burtt Davy Jun 1899 5675 Humboldt Hoopa Mt. Northern Coast Ranges Comment
  UC1134170  Picea sitchensis H. S. Yates 1936-6-16 5659 Humboldt 1 mi sw Samoa; Eureka Quad. 6 Comment
  HSC70580  Pinus attenuata Gail Newton 1980-7-24 1775 Humboldt Near Somes Mtn. 1615 Comment
  CAS-BOT-BC73289  Pinus contorta L. R. Abrams 1916-7-18 6074 Humboldt Arcata to Trinidad. Comment
  POM21765  Pinus contorta var. contorta L. R. Abrams 1916-7-18 6074 Humboldt Arcata to Trinidad. Comment
  HSC44319  Pinus monticola Brad Klipfel 1975-6-17 670 Humboldt Horse Mtn. Comment
  CAS-BOT-BC78980  Pinus muricata Robert M. Specht 1977-11-20 1190 Humboldt near highway 101, along Georgia Pacific's A-line 182 Comment
  UC14936  Piperia elegans J. P. Tracy 1901-8-7 1253 Humboldt opposite Eureka; Samoa Comment
  UC13527  Piperia elegans Chesnut and Drew 1888-7-10 Humboldt Jarnnigan's Jarnigan's Comment
  CAS-BOT-BC71823  Pityrogramma Kenneth Clark 1980-6-14 693 Humboldt North fork Dead Man's Gulch, Point Delgada quad. 91 Comment
  UC526811  Plagiobothrys nothofulvus Joseph P. Tracy 1932-5-1 9862 Humboldt near Garberville; North Coast Ranges, Redway 182 Comment
  UC1239610  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-21 14997 Humboldt Iaqua 609 Comment
  UC582612  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-28 15009 Humboldt near Murphy Meadows (Bald Mountain); Bald Mountain 914 Comment
  LA204802  Plagiobothrys scopulorum Joseph P. Tracy; 1935-5-25 13844 Humboldt Fort Seward 106 Comment
  UC1222195  Plagiobothrys scouleri var. scouleri Joseph P. Tracy 1950-6-25 18900 Humboldt 3 mi s Burr Valley (near Sproston place, on road to Albee place, sw slopes Buck Mountain); Buck Mountain 1158 Comment
  UC526812  Plagiobothrys tenellus Joseph P. Tracy 1932-5-1 9863 Humboldt near Garberville; North Coast Ranges, Redway 182 Comment
  UC604631  Plantago elongata Joseph P. Tracy 1938-7-15 16074 Humboldt Mouth of Eel River 3 Comment
  HSC104158  Plantago erecta Andrea Pickart 2002-4-3 35 Humboldt Samoa Dunes, Eureka airport. 15 Comment
  UC198604  Plantago erecta Joseph P. Tracy 1917-5-30 4793 Humboldt mouth of Little River North Coast Ranges, Little River 6 Comment
  SEINET12330007  Plantago hirtella var. galeottiana F. H. Utech 1986-1 86 -409 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  HSC16836  Plantago lanceolata A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction, 200 yds. W of Lindsey Creek Comment
  HSC26370  Plantago lanceolata T. O. Osborne 1970-9-16 64 Humboldt Trinidad Bay, Prisoner Rock Comment
  RSA54131  Plantago patagonica H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  SEINET4086441  Plantago purshii O. M. Clark 1932-1 1174 Humboldt South Eureka. Comment
  UC666989  Platanthera leucostachys Joseph P. Tracy 1933-7-25 12842 Humboldt Grouse Mountain 1524 Comment
  UC275570  Platanthera sparsiflora Joseph P. Tracy 1924-7-4 6713 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  UC666987  Platanthera sparsiflora Joseph P. Tracy 1932-7-17 10673 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  JEPS51633  Platystemon californicus Joseph P. Tracy 1866-4-4 Humboldt Eureka Comment
  UC1196295  Platystemon californicus Joseph P. Tracy 1935-5-25 13871 Humboldt Fort Seward 106 Comment
  UC146076  Platystemon californicus Joseph P. Tracy 1904-4-24 2020 Humboldt sand dunes of Ocean Beach Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
  HSC16792  Platystemon californicus J. W. Johnson 1962-8-18 1245 Humboldt Arcata, Mad River County Park Comment
  HSC35030  Plectritis congesta Thomas W. Nelson, James Nelson 1975-5-24 1842 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC92237  Plectritis congesta subsp. brachystemon John Cromwell, Julie Schneider, A. Thoele 1994-3-19 6 Humboldt Hell's Half Acre, trailhead located 12 mi. S on S Fork Rd. off Hwy. 299 457 Comment
  POM252663  Plectritis congesta subsp. brachystemon Joseph P. Tracy 1936-5-29 14823 .5 Humboldt French Camp Ridge. 1067 Comment
  UC1462984  Pleuricospora fimbriolata Joseph P. Tracy 1916-6-25 4740 A Humboldt between Little River and Redwood CreekNorthern Coast Ranges Redwood Creek (Northern Coast Ranges); Northern Coast Ranges 304 Comment
  HSC63844  Pleuricospora fimbriolata M. A. Baker 1979-6-29 953 Humboldt 900 Comment
  RSA183537  Pleuropogon refractus H. S. Logsdon 1964-5-10 12 Humboldt 4 miles NE of Orick at Boye's Prairie Comment
  SEINET200956 Image available Pleuropogon refractus J. P. Tracy 1922-6-18 6095 Humboldt Head of Middle Yager Creek. 762 Comment
  UC1145107  Pleuropogon refractus Joseph P. Tracy 1939-7-9 16334 Humboldt Snow Camp 1402 Comment
  HSC10623  Poa annua Gene S. Van Horn 1962-5-2 10 Humboldt Near main house at 250 East 17th St., Arcata. 61 Comment
  HSC10624  Poa annua E. W. Styskel 1964-4-12 65 Humboldt Corner of Center St. and Hwy. 101 in Rio Dell. Comment
  HSC10625  Poa annua P. N. Slattery 1963-4-4 28 Humboldt Clam Beach. Comment
  CAS-BOT-BC254713  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt Klamath Mountains. Head of Brett Hole 1828 Comment
  UC1145119  Poa bolanderi Joseph P. Tracy 1949-6-6 18308 Humboldt 6 mi ne Hawkins Bar (Happy Camp Mt); Trinity Summit Range 1280 Comment
  HSC10702  Poa douglasii D. E. Anderson 1961-9-2 1772 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  UC207680  Poa douglasii Joseph P. Tracy 1917-5-30 4798 Humboldt at Little River Ocean Beach; Northern Coast Region Comment
  UC1103795  Poa howellii Joseph P. Tracy 1918-7-5 5035 Humboldt White Thorn Valley; Northern Coast Ranges 304 Comment
  CAS-BOT-BC255850  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay 30 Comment
  RSA95498  Poa kelloggii L. S. Rose 1954-4-25 54013 Humboldt Bull Creek Flat 46 Comment
  UCD91813  Poa pratensis Linda M. Barker 1976-6-1 1567 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC525615  Poa pratensis subsp. pratensis Joseph P. Tracy 1926-5-9 7469 1/2 Humboldt valley s of South Yager Creek; Northern Coast Ranges 762 Comment
  SEINET200626 Image available Poa secunda Joseph P. Tracy 1932-7-17 10693 Humboldt Klamath Mountains Trinity Summit, Humboldt county, Head of Devils Hole 1829 Comment
  CAS-BOT-BC235983  Poa secunda subsp. secunda Doris Kildale Gillespie 1931-6-7 10640 Humboldt South Fork Mountain, Blake Lookout 1726 Comment
  UC1152045  Poa secunda subsp. secunda Joseph P. Tracy 1951-6-26 19543 Humboldt 2 mi w Snow Camp (at Beck's Place, Hydesville) 1219 Comment
  UCD91732  Poa secunda subsp. secunda Al Murphy 1947-8-1 s.n. Humboldt Horse Mt. Comment
  HSC10812  Poa unilateralis R. D. Rogers 1964-4-16 5 Humboldt Patricks Point State Park. Comment
  UCD52731  Podagrostis humilis A. H. Murphy 1951-6-25 65 Humboldt Snow Camp Meadow, 8 miles e.n.e. Kneeland. 1402 Comment
  HSC94146  Polycarpon tetraphyllum Gordon Leppig, Sylvia Leppig 2000-12-7 1524 Humboldt 10th and I St. in Arcata 6 Comment
  JEPS43005  Polygala californica W. L. Jepson 1932-7-30 16459 Humboldt Bull Creek 121 Comment
  HSC39221  Polygala californica D. E. Anderson, J. P. Smith 1971-7-6 - 1321 Humboldt E of Pine Ridge Summit Comment
  UC166034  Polygala californica Joseph P. Tracy 1911-7-6 3347 Humboldt between Three Creeks and mouth Willow Creek; Northern Coast Ranges 762 Comment
  UC1198989  Polygala cornuta var. cornuta Joseph P. Tracy 1939-8-16 16414 Humboldt barren places Horse Mountain 1432 Comment
  UC35075  Polygala cornuta var. cornuta Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UCSB30611  Polygonum aviculare Edwards, David 1974-7-30 Humboldt In NW corner of Uniontown Shopping Center at the corner of "F" St. and 7th St., Arcata 18 Comment
  CAS-BOT-BC414464  Polygonum douglasii Joseph P. Tracy 1930-6-21 8779 Humboldt Larrabee Valley 731 Comment
  SEINET3405786 Image available Polygonum douglasii Joseph P. Tracy 1947-8-24 17887 Humboldt Trinity Summit, Near Box Camp, in open fir timber 1524 Comment
  UC1541405  Polygonum douglasii subsp. spergulariiforme H. E. Parks and J. P. Tracy 1930-9-15 767 Humboldt Kneeland Bald Hills Comment
  UC672949  Polygonum lapathifolium Joseph P. Tracy 1930-10-12 9204 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  UC1101153  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-9 1234 Humboldt Town of Blue Lake; pond on s side Comment
  UC672947  Polygonum minimum Joseph P. Tracy 1932-7-18 10702 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  HSC17517  Polygonum paronychia J. R. Kahl 1962-4-26 18 Humboldt 1 mi. N of Samoa, 1000 yards from ocean. Comment
  RSA246682  Polygonum paronychia Robert F. Thorne, Percy C. Everett 1965-8-5 35163 Humboldt Samoa Dunes. 3 Comment
  RSA286307  Polygonum paronychia Robert F. Thorne 1974-7-29 45080 Humboldt Samoa Dunes. Comment
  CAS-BOT-BC421006  Polygonum spergulariiforme Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 1219 Comment
  HSC75955  Polygonum spergulariiforme Overton, Butler 1979-7-24 9730 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  SEINET3404068 Image available Polygonum spergulariiforme Joseph P. Tracy 1921-10-2 5966 Humboldt Kneeland Prairie Comment
  HSC26897  Polygonum spergulariiforme Thomas W. Nelson 1973-7-27 1102 Humboldt SW of the Kneeland airstrip 915 Comment
  UC709395  Polypodium Joseph P. Tracy 1941-3-26 16835 Humboldt at Willow Creek Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC76846  Polypodium glycyrrhiza Doris K. Kildale 1926-2-22 1468 Humboldt Dobbyns Creek Comment
  HSC39942  Polypodium glycyrrhiza Linda M. Barker 1976-3-11 1328 Humboldt 3 mi. W of Arcata Comment
  UC57305  Polypodium glycyrrhiza J. P. Tracy 1901-1-27 986 Humboldt sand hills of Ocean Beach at Samoa (opposite Eureka) Comment
  UC812497  Polypodium glycyrrhiza Eliz. Parsons Hawver June 1915 Humboldt Carlotta Comment
  UCD136880  Polypodium glycyrrhiza Linda M. Barker 1976-2-22 1313 Humboldt 3 miles west of Arcata. 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
  CHSC19517  Polypodium scouleri J. F. Knezevich 1968-5-13 429 Humboldt Collected near Arcata above Freshwater Forest. Comment
  UCD136910  Polypodium scouleri Linda M. Barker 1976-3-11 1327 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC100916  Polypodium scouleri Carl C. Marshall Sep 1886 42 Humboldt Canyon E of Arcata. Comment
  HSC1114  Polypodium scouleri D. E. Anderson 1961-8-25 1754 Humboldt 1.5 mi. S of Trinidad Comment
  HSC10853  Polypogon monspeliensis David K. Smith 1968-11-20 80 Humboldt About 4 miles SE of Arcata, along Jacoby Creek. Comment
  HSC10854  Polypogon monspeliensis Jerry Parker 1968-11-22 241 .1 Humboldt McKinleyville beach. Comment
  RSA46871  Polypogon monspeliensis Doris K. Kildale 1927-6-25 3546 Humboldt Shelter Cove. Comment
  RSA247492  Polystichum munitum Gary D. Wallace 1966-9-12 703 Humboldt Along Hwy. 299 E of Arcata near Willow Creek; Comment
  HSC79147  Polystichum munitum C. J. Thomas 1984-9-25 119 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  HSC98514  Polystichum munitum Cara Witte 2008-7-10 857 Humboldt Brays Opening on National Forest 1. 0.5 mi. north of intersection with Forest Service Road 4N38. 1393 Comment
  CAS-BOT-BC102910  Populus trichocarpa Doris K. Kildale 1927-5-13 3131 Humboldt Redwood Creek at Berry's 289 Comment
  UC1196662  Populus trichocarpa Joseph P. Tracy 1932-5-11 9970 Humboldt 2 mi n Samoa; North Coast Ranges 6 Comment
  UC1196666  Populus trichocarpa Joseph P. Tracy 1922-10-8 6122 1/2 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  UC176692  Populus trichocarpa Joseph P. Tracy 1913-6-22 4261 A Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC249560  Populus trichocarpa Joseph P. Tracy 1922-10-8 6123 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  HSC69532  Potamogeton natans R. Kalal 1979-5-18 76 Humboldt Shallow slough E of Clam Beach County Park 24 Comment
  HSC62825  Potamogeton nodosus J. M. DiTomaso 1979-4-21 892 Humboldt Next to Hwy. 101 at Crannell Rd. exit between Westhaven and Mckinleyville Comment
  CAS-BOT-BC454067  Potamogeton pusillus subsp. pusillus S. K. Harris 1938-9-12 s.n. Humboldt Backwater of Eel River, near Fernbridge Comment
  CAS-BOT-BC454089  Potamogeton pusillus subsp. tenuissimus William Anderson 1964-8-4 s.n. Humboldt Shore Acres. McKinleyville Comment
  HSC62830  Potentilla anserina subsp. pacifica J. M. DiTomaso 1979-4-21 883 Humboldt Clam Beach Comment
  HSC63026  Potentilla anserina subsp. pacifica J. P. Smith 1971-10-6 4937 Humboldt End of Murray Rd. in McKinleyville. Comment
  POM366485  Potentilla anserina var. grandis Glenn A. Gorelick 1967-6-4 s.n. Humboldt Samoa Beach, near Eureka. Marine Sand dunes. Comment
  HSC57029  Prosartes hookeri Overton, Butler 1979-7-24 9653 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC15473  Prosartes smithii D. E. Anderson 1962-3-31 1959 Humboldt Old Hwy. 101, E side of Freshwater Lagoon Comment
  HSC22057  Prosartes smithii B. D. Rogers, D. E. Anderson 1965-5-1 513 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  CAS-BOT-BC517512  Prosartes smithii Alice Eastwood 1907-4-22 29 Humboldt Part Trinidad Comment
  HSC15475  Prosartes smithii Francis Winter 1960-4-23 Humboldt Simpson Creek, Korbel-Maple Creek rd. 244 Comment
  CDA5736  Prunella vulgaris T. C. Fuller 1958-6-17 596 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC14302  Prunella vulgaris William J. Ferlatte, B. D. Rogers 1966-6-15 2093 Humboldt Near Bridgeville 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
  UC1174866  Prunella vulgaris var. lanceolata P. C. Everett and E. K. Balls 1959-10-25 23961 Humboldt U.S. Hwy 299 to Arcata 14 mi w Willow Creek; w of Willow Creek 502 Comment
  UC418989  Prunella vulgaris var. lanceolata H. E. Parks and J. P. Tracy 1930-9-14 770 Humboldt above Bayside 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
  HSC98638  Pseudotsuga menziesii Cara Witte 2008-7-11 884 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  UCR246635  Pseudotsuga menziesii Dean Kelch, D. A. Weinstein 2007-7-25 07- 510 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  NY63912  Pseudotsuga menziesii var. menziesii J. P. Tracy 1932-3-19 9789 Humboldt Blue Slide, on Van Duzen River Comment
  SDSU2009  Pseudotsuga menziesii var. menziesii Harvey 1938-8-14 2317 Humboldt U. S 299 Arcata- Willow Creek. Comment
  UC63998  Pseudotsuga menziesii var. menziesii Mrs. M. H. Manning 1902-3-1 Humboldt Comment
  RSA170252  Psilocarphus brevissimus Joseph P. Tracy, Francis W. Pennell 1940-7-7 16674 Humboldt Grouse Mountain. 1555 Comment
  CAS-BOT-BC361833  Psilocarphus oregonus Joseph P. Tracy 1938-7-5 16008 Humboldt Carlotta. By old Strong's District School House, 5 miles east of town 45 Comment
  HSC1163  Pteridium aquilinum var. pubescens R. I. Bonn 1965-5-9 41 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  RSA475262  Pteridium aquilinum var. pubescens Lyman Benson 1928-7-9 408 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  CAS-BOT-BC460595  Pyrola aphylla Henry M. Pollard 1948-7-23 s.n. Humboldt Perch Creek canyon near Orleans Comment
  CAS-BOT-BC460602  Pyrola aphylla Doris Kildale 1931-5-24 10846 Humboldt Little Laribee, Laribee Valley Comment
  UC1222157  Pyrola asarifolia Joseph P. Tracy 1951-6-24 19534 Humboldt near intersection of Butter Valley Road with Kneeland Road Comment
  HSC41260  Pyrola dentata Brad Klipfel 1974-7-23 452 Humboldt Horse Mtn., N of the towers Comment
  HSC55032  Pyrola picta Overton, Butler 1979-7-31 11471 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  UC1197578  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit near Corral Prairie; Trinity Summit 1584 Comment
  UC32690  Pyrola picta Chestnut and Drew 1888-7-21 Humboldt South Fork Mts. Comment
  UC562451  Pyrola picta Joseph P. Tracy Jul 16 1930-Jul 19 1930 9033 Humboldt near McKay Camp (Northern Coast Ranges, South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC154161  Pyrola picta Mrs. M. H. Manning 1900-1 Humboldt near Hupa, Bald Hill Comment
  UC709464  Quercus X morehus Joseph P. Tracy 1941-6-15 16915 Humboldt Panther Gap; on Bull Creek-Mattole Rd 762 Comment
  BLMAR160  Quercus chrysolepis Donald Hazlett 1994-6-7 160 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1222292  Quercus chrysolepis Joseph P. Tracy 1950-8-4 19256 Humboldt at head of Canoe Creek, summit of ridge ne of the lookout station, Grasshopper Peak, in Bull Creek State Park Bull Creek State Park, Grasshopper Peak, Canoe Creek Comment
  UCD82873  Quercus chrysolepis Rodney Gale Myatt 1971-9-21 1185 -6 Humboldt Near Orleans, northeast of Hoopa Reservation, along Klamath River. 185 Comment
  HSC102091  Quercus garryana var. breweri M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 994 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA46718  Quercus garryana var. garryana Doris K. Kildale 1937-8-29 15352 Humboldt Dinsmore's. Comment
  JEPS37758  Quercus kelloggii W. L. Jepson 1903-6 2203 Humboldt Harris Ridge 1127 Comment
  UC502988  Quercus kelloggii Joseph P. Tracy 1928-9-30 8510 Humboldt near Bridgeville; Northern Coast Ranges 304 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
  UC213004  Quercus sadleriana Joseph P. Tracy 1919-9-19 5259 Humboldt Trinity Summit Northern Coast Ranges 1676 Comment
  UCD47250  Quercus sadleriana W. L. Jepson 1902-7-16 2033 Humboldt Ridges and slopes just below summit; Trinity Summit. 1524 Comment
  CAS-BOT-BC104537  Quercus vacciniifolia Doris K. Kildale 1928-10-7 6747 Humboldt Willow Creek Canyon 7 miles from mouth Comment
  CAS-BOT-BC104538  Quercus vacciniifolia D. E. Breedlove 1961-7-4 648 Humboldt 7 miles W of Willow Creek on US 299 521 Comment
  HSC55598  Quercus vacciniifolia Overton, Butler 1979-7-23 9411 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC1135804  Quercus vacciniifolia A. E. Wieslander 1931-5-19 204 Humboldt near Orleans; Klamath Forest, Hoopa Quad. Comment
  UC1565804  Quercus vacciniifolia R. Spellenberg 1990-7-10 Humboldt 8 mi wsw Salyer (at 6 mi s of Berry Summit (on Calif Hwy 299), extreme e edge of Humboldt County) 1371 Comment
  CAS-BOT-BC379460  Ranunculus alismifolius Volney Rattan 1883-6-1 s.n. Humboldt Landslide ponds on the divide between Mad River and Redwood Creek Comment
  HSC26634  Ranunculus alismifolius var. alismifolius Thomas W. Nelson 1971-5-31 452 Humboldt Vernal pond Comment
  CAS-BOT-BC379173  Ranunculus aquatilis var. aquatilis Joseph P. Tracy 1937-5-30 15311 Humboldt Larrabee Creek; in shallow pond near Bosworth's 366 Comment
  UC162340  Ranunculus aquatilis var. capillaceus Joseph P. Tracy 1911-7-10 3486 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC183673  Ranunculus flammula Joseph P. Tracy 1912-7-24 3810 Humboldt Eureka Northern Coast Region 0 Comment
  UC552300  Ranunculus flammula Joseph P. Tracy 1934-7-13 13390 Humboldt Dow's Prairie 60 Comment
  UC1196231  Ranunculus occidentalis Joseph P. Tracy 1934-4-8 13173 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC71029  Ranunculus occidentalis Thomas W. Nelson 1977-4-20 3321 Humboldt Along FS 1N15 between Hwy. 36 and summit 915 Comment
  UC1537332  Ranunculus occidentalis Gordon H. True Jr. 1936-5-11 466 Humboldt 12 mi w Miranda (e slope of ridge); Elk Ridge 457 Comment
  SEINET180820  Ranunculus occidentalis var. rattanii Bassett Maguire, R Maguire; C. B. Maguire 1934-6-9 15179 Humboldt Clam Beach 15 mi N of Eureka Comment
  UC1196247  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1911-6-30 3273 Humboldt near Hydesville; Northern Coast Region 60 Comment
  POM118708  Ranunculus repens Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  CDA3482  Ranunculus repens T. C. Fuller 1968-7-3 17442 Humboldt North side of Elk River Road, 2 miles east of Highway 101 freeway, ca. 5 miles south of Eureka. 0 Comment
  UC13973  Ranunculus uncinatus Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UCD115153  Raphanus raphanistrum Linda M. Barker 1976-7-5 1647 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC64069  Raphanus sativus J. P. Smith 1971-10-6 4978 Humboldt End of Murray Rd. in McKinleyville. Comment
  CDA3875  Reseda luteola R. Drewry 1968-12-12 Humboldt 0.5 mile east of Casterlin. 0 Comment
  UC61088  Rhamnus californica subsp. californica P. E. Goddard 1901-6-9 19 Humboldt Hupa Comment
  RSA7735  Rhamnus californica subsp. occidentalis Carl B. Wolf 1927-8-28 1172 Humboldt On grade 9 miles from Willow Creek, Lord Ellis Road to Blue Lake Comment
  CAS-BOT-BC55966  Rhamnus ilicifolia L. R. Abrams 1927-9-11 12141 Humboldt Fork Klamath and Shasta Rivers Comment
  POM257951  Rhamnus purshiana H. E. Parks, S. T. Parks 1937-06 24018 Humboldt Spruce Cove, Trinidad. Comment
  RSA2933  Rhamnus purshiana Carl B. Wolf 1931-8-30 2373 Humboldt E side of Eureka on P st, on block N of Henderson Street. 30 Comment
  UC726369  Rhamnus purshiana A. A. Heller 1923-7-9 13775 Humboldt 5 mi from Arcata (near Blue Lake) Comment
  CAS-BOT-BC58194  Rhododendron columbianum Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick. Comment
  HSC7832  Rhododendron columbianum D. E. Anderson 1961-9-13 1804 Humboldt Big Lagoon County Park Comment
  HSC33060  Rhododendron macrophyllum Thomas W. Nelson 1974-5-7 1239 Humboldt Old Kneeland Rd. Comment
  SBBG5560  Rhododendron occidentale H. and M. Dearing 1933-5-17 1244 Humboldt N of Big Lagoon Comment
  RSA0062952  Rhododendron occidentale var. paludosum C. B. Wolf 1934-7-2 5905 Humboldt 4.5 miles from Snow Camp on road to Bald Mt (Mtns E of Korbel). 1067 Comment
  CAS-BOT-BC433138  Ribes Doris Kildale 1931-5-10 10579 Humboldt Snow Camp 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
  RSA459475  Ribes binominatum Thomas W. Nelson, Jane Nelson 1976-7-26 3040 Humboldt Along ridge NW of Mount Lassic (Signal Peak) 1707 Comment
  HSC99479  Ribes bracteosum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 138 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), between Six Rivers National Forest boundary and Box Camp 1433 Comment
  UC1198905  Ribes bracteosum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9098 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC20290  Ribes divaricatum W. R. Rogers 1966-5-1 243 Humboldt Azella State Reserve Comment
  CAS-BOT-BC108909  Ribes divaricatum var. pubiflorum Doris K. Kildale 1926-3-25 1619 Humboldt Liscom Hill. Lower Mad River. 30 Comment
  HSC103223  Ribes divaricatum var. pubiflorum Jade Paget-Seekins 2010-3-20 7 Humboldt On the Mad River. In the park next to the water treatment plant. 13 Comment
  HSC70894  Ribes inerme var. klamathense J. M. DiTomaso 1981-5-15 2000 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  HSC97603  Ribes lacustre Cara Witte 2007-5-31 162 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  JEPS49366  Ribes lacustre P. E. Goddard 1901-7 125 Humboldt Trinity Summit Trail Comment
  UC667057  Ribes lobbii Joseph P. Tracy 1933-7-11 12697 Humboldt Grouse Mountain 1524 Comment
  HSC20311  Ribes menziesii J. L. Baker 1965-4-24 33 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  HSC20312  Ribes menziesii R. E. Thill 1965-5-1 25 Humboldt 0.25 mi. from Korbel on the Camp Bauer Rd. Comment
  UC902058  Ribes roezlii Joseph P. Tracy 1942-3-8 17067 Humboldt Miranda South Fork of Eel River 121 Comment
  HSC97476  Ribes roezlii var. roezlii Cara Witte 2007-5-23 101 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  HSC20341  Ribes sanguineum M. S. Miller 1965-4-2 18 Humboldt Arcata, HSC campus Comment
  HSC33053  Ribes sanguineum Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1241 Humboldt Horse Mtn. area 1220 Comment
  HSC34626  Ribes sanguineum Pamela Bruce 1975-4-8 1 Humboldt 0.5 mi. N of School Rd. on Washington Ave. Comment
  RSA0019528  Ribes sanguineum Peter H. Raven, Richard Snow 1958-7-20 13644 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  CAS-BOT-BC144680  Ribes sanguineum var. glutinosum L. B. Kildale 1930-9-9 10405 Humboldt Bald Mountain 914 Comment
  CAS-BOT-BC144686  Ribes sanguineum var. glutinosum Lincoln Constance; Reed Rollins 1942-5-11 2866 Humboldt Near summit 8 miles east of Blue Lake Comment
  HSC20342  Ribes sanguineum var. glutinosum Frances Oldridge 1945-1 Humboldt Arcata Comment
  HSC37844  Ribes sanguineum var. glutinosum Thomas W. Nelson, James Nelson 1976-3-11 2266 Humboldt Beside Eel River just N of terminus of Singley Rd. Comment
  UC902086 Image available Ribes sanguineum var. glutinosum Joseph P. Tracy 1949-4-10 18281 Humboldt North Coast Ranges, Redwood Creek, at Berry's Redwood Creek; North Coast Ranges, Redwood Creek 365 Comment
  UCSB15627  Ribes sanguineum var. glutinosum Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa; on peninsula; on western side of Humboldt Bay Comment
  RSA0018247  Ribes sanguineum var. glutinosum Lyman Benson 1928-7-10 615 Humboldt Clam Beach, Trinidad. 30 Comment
  UC1199149  Rigiopappus leptocladus Joseph P. Tracy 1916-6-19 4737 Humboldt near Alder Point; Northern Coast Ranges, Cahto Creek 152 Comment
  JEPS13132  Romanzoffia californica Joseph P. Tracy 1925-4-5 6954 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1239758  Romanzoffia californica Joseph P. Tracy 1946-5-19 17529 Humboldt Kneeland Prairie 762 Comment
  HSC57635  Romanzoffia sitchensis G. L. Clifton, Griswold 1979-7-25 10793 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CAS-BOT-BC146483  Rosa gymnocarpa W. R. Dudley 1899-6-1 s.n. Humboldt Shady run - Scotia Comment
  CAS-BOT-BC146490  Rosa gymnocarpa Carl B. Wolf 1927-8-30 1232 Humboldt 2 mi. so. of Petrolia on Matole River near point where road crosses river Comment
  OBI35864  Rosa gymnocarpa David J. Keil 1983-7-2 17330 Humboldt Horse Mtn Summit SW of Willow crk Comment
  CAS-BOT-BC146832  Rosa nutkana Alice Eastwood; John Thomas Howell 1937-6-23 4768 Humboldt Near Dinsmore's Comment
  HSC31560  Rosa nutkana Glenn McGourty 1974-6-1 77 Humboldt Comment
  JEPS47247  Rosa nutkana var. nutkana W. L. Jepson 1936-8-17 17922 Humboldt 2 1/2 mi s Fields Landing (bordering marsh) Comment
  UC154203  Rosa pisocarpa Joseph P. Tracy 1908-6 2873 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC19623  Rosa rubiginosa D. E. Anderson 1965-9-5 4096 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC24018  Rosa rubiginosa Tim Baroni 1971-6-25 48 Humboldt [no information] Comment
  HSC37234  Rosa rubiginosa Lon Hall 1975-6-19 409 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC100908  Rosa spithamea Carl C. Marshall Jun 1886 306 Humboldt Trail E of Hoopa. Comment
  HSC57115  Rubus leucodermis Overton, Butler 1979-7-25 9858 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 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
  HSC73244  Rubus leucodermis M. A. Baker 1980-5-18 1341 Humboldt Near Black Mtn. 792 Comment
  HSC99589  Rubus leucodermis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 258 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
  HSC22496  Rubus parviflorus G. T. Nordstrom 1966-4-24 11 Humboldt Kneeland-Maple Creek Rd. near jct. with Korbel Rd. Comment
  NY1043368  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  OBI35883  Rubus parviflorus David J. Keil 1983-7-1 17292 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  RSA201873  Rubus parviflorus Geo. Parrish 1930-5-21 s.n. Humboldt Trinidad. Comment
  UC492166  Rubus parviflorus Joseph P. Tracy 1932-7-15 10576 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit, nr Corral Prairie 1524 Comment
  CHSC94934  Rubus spectabilis K. Lang; J. Lang 2005-3-16 38 Humboldt Trinidad, N. California coast. 51 Comment
  HSC19676  Rubus spectabilis Lincoln Constance 1934-6-2 780 Humboldt Bull Creek Rd. to mouth of Bull Creek, top Bull Creek Comment
  HSC31512  Rubus spectabilis Steve Selva, Roger Jensen 1974-8-21 27 Humboldt Redwood grove adjacent to Hwy. 101 rest stop, ca. 3 mi. N of Trinidad Comment
  HSC95739  Rubus spectabilis Kevin Thomas 2004-3-18 3 Humboldt Near Clam Beach exit of Hwy. 101 N, along old Hwy. 101, at end of Little River Rd. Comment
  UC303160  Rubus spectabilis Joseph P. Tracy 1923-4-15 6192 Humboldt Berry's Northern Coast Ranges, , Berry's (Redwood Creek) 274 Comment
  UC584131  Rubus spectabilis David D. Keck and J. Clausen 1935-6-16 3394 Humboldt mouth of Little River Comment
  CAS-BOT-BC158792  Rubus ursinus Joseph P. Tracy 1946-8-25 17637 Humboldt Field's Landing, 2 miles above town. 6 Comment
  HSC99432  Rubus ursinus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 81 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA183575  Rubus ursinus R. I. Bonn 1965-4-23 19 Humboldt 4 miles W of Arcata on Lanphere Rd. Comment
  UCD17846  Rubus ursinus H. Olmo 8-10 May 1962 62- 33 Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. Comment
  HSC35025  Rudbeckia occidentalis K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  SEINET5710896  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  SEINET5710899  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  HSC17586  Rumex acetosella R. I. Bonn 1965-5-7 30 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC48763  Rumex acetosella Brad Klipfel 1973-6-10 99 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC51775  Rumex acetosella Overton, Butler 1979-7-24 9644 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UCD100992  Rumex acetosella Lincoln Constance 1934-6-3 807 Humboldt Bull Creek Region, South Fork Eel River. Along N side of Redwood Hwy, at Dyerville. Comment
  CAS-BOT-BC421592  Rumex crispus Doris K. Kildale 1926-5-9 1997 Humboldt Kneeland Prairie 762 Comment
  HSC39980  Rumex crispus Linda M. Barker 1976-6-22 1622 Humboldt 3 mi. W of Arcata Comment
  UC153979  Rumex occidentalis Joseph P. Tracy 1910-6-5 3148 Humboldt near Samoa; Northern Coast Region, Humboldt Bay Region 0 Comment
  UCD108451  Rupertia physodes K. Esau 1934-5-6 s.n. Humboldt Above Fort Seward. 457 Comment
  RSA275410  Rupertia physodes Thomas W. Nelson, Jane Nelson, A. P. Nelson 1977-7-1 3573 Humboldt Along road 2S08 below Goat Hill. 1524 Comment
  UCD149937  Ruppia maritima William Anderson; H. Mc. 1964-8-6 s.n. Humboldt Stone Lagoon. Comment
  SEINET10966379  Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 Tracy 17267 Humboldt Hungry Hollow. on Bald Mountain 610 Comment
  HSC4064  Sagina maxima subsp. crassicaulis D. E. Anderson 1961-9-13 1813 Humboldt Trinidad Beach Comment
  HSC71114  Sagina procumbens Thomas W. Nelson 1977-6-4 3388 Humboldt HSU campus along B St. along W side of Biology-Engineering Building Comment
  UC162362  Salicornia virginica Joseph P. Tracy 1911-10-22 3550 Humboldt Eureka Northern Coast Region, Humboldt Bay Region 0 Comment
  UC490586  Salix Joseph P. Tracy 1932-7-31 10286 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  JEPS13099  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14264 Humboldt meadows at Water Dog Lakes Trinity Summit 1828 Comment
  UC512022  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1336 Humboldt 1 mi below bridge on Trinity Hwy. (on ...bank above Trinity R.) 152 Comment
  CAS-BOT-BC107701  Salix hookeriana Harold E. Parks 1931-5-12 954 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107731  Salix hookeriana Harold E. Parks 1931-3-26 904 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC107740  Salix hookeriana Joseph P. Tracy 1931-8-23 9616 Humboldt Sand dunes, near Samoa 6 Comment
  CAS-BOT-BC107746  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1225 Humboldt In pine barrens near the coast, 1 mile north of Samoa Comment
  CAS-BOT-BC107764  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1214 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CAS-BOT-BC107769  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1222 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CHSC9558  Salix hookeriana E. L. Smith 1971-4-7 928 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  HSC19964  Salix hookeriana H. E. Parks 1931-3-24 915 Humboldt Vicinity of Trinidad R.R. Station Comment
  HSC19965  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-5 1100 Humboldt Little River Comment
  JEPS12958  Salix hookeriana Joseph P. Tracy 1931-8-9 9609 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  JEPS79975  Salix hookeriana Joseph P. Tracy 1941-3-9 16800 Humboldt along Eel R. (Camp Grant); along Eel River 48 Comment
  SBBG59111  Salix hookeriana H. E. Parks 1931-3-24 914 Humboldt Eel River, Fortuna 10 Comment
  SD937  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC1196678  Salix hookeriana Joseph P. Tracy 1925-11-15 7316 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay (same region as #6929) 60 Comment
  UC469128  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC470439  Salix hookeriana Joseph P. Tracy 1931-9-19 9679 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC481262  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC481388  Salix hookeriana Harold E. Parks 1931-3-24 915 Humboldt Trinidad 90 Comment
  UC481392  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Fortuna Eel River (banks of river) 10 Comment
  UC490476  Salix hookeriana H. E. Parks and Joseph P. Tracy 1932-8-13 10344 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  UC506505  Salix hookeriana Joseph P. Tracy 1932-8-27 10753 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UCD111036  Salix hookeriana Linda M. Barker 1976-4-13 1382 Humboldt 3 miles west of Arcata. Comment
  POM218954  Salix laevigata H. P. Bracelin 1931-5-1 270 Humboldt Sylvandale, between Miranda and Meyers. S Fork of Eel River. Comment
  UC481824  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 272 Humboldt between Miranda and Meyers (Sylvandale Station, Redwood Hwy., S. Fork Eel R.); Sylvandale Station, Redwood Hwy., S. Fork Eel R. Comment
  UC517961  Salix laevigata M. S. Jussel 1931-5-1 Humboldt Sylvandale Comment
  UC490517  Salix laevigata var. congesta Joseph P. Tracy 1932-5-22 10122 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  HSC19984  Salix lasiandra H. E. Parks, S. T. Parks 1932-4-16 1099 Humboldt Near Ferndale on the Eel River delta Comment
  HSC19985  Salix lasiandra J. P. Tracy 1933-7-16 12772 Humboldt S Fork Mtn., Mckay Camp 1677 Comment
  UC1196582  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1942-9-6 17309 Humboldt near McKay Camp; S. Fork Mt. 1676 Comment
  UC1196586  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1929-10-20 8682 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC481261  Salix lasiandra subsp. lasiandra Harold E. Parks 1931-5-20 991 Humboldt Blue Lake Mad R., Blue Lake 15 Comment
  UC481391  Salix lasiandra subsp. lasiandra Harold E. Parks 1931-3-24 911 Humboldt on Eel. R. Fortuna; Eel R., Fortuna 10 Comment
  CAS-BOT-BC107594  Salix lasiolepis Harold E. Parks; Susan T. Parks 1931-8-15 1079 Humboldt Blue Slide, Van Duzen River 100 Comment
  CAS-BOT-BC107599  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt On slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  HSC19997  Salix lasiolepis J. P. Tracy 1933-3-19 10934 Humboldt Bridgeville, along Van Duzen River 229 Comment
  HSC20014  Salix lasiolepis H. E. Parks 1931-8-25 1059 Humboldt Blue Slide, Van Duzen River 91 Comment
  HSC96365  Salix lasiolepis Gordon Leppig 1999-4-15 1123 Humboldt Big Lagoon County Park, Big Lagoon Bog, E fen edge 3 Comment
  JEPS12948  Salix lasiolepis Joseph P. Tracy 1932-3-6 9776 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS14779  Salix lasiolepis Joseph P. Tracy 1933-4-2 10959 Humboldt on Trinity Hwy. Berry's Mt. (e of Redwood Creek); Northern Coast Ranges 762 Comment
  JEPS14780  Salix lasiolepis Joseph P. Tracy 1933-4-9 10964 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  POM219355  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt Redwood Creek, at Berry's 274 Comment
  UC1222296  Salix lasiolepis Joseph P. Tracy 1950-4-20 18623 Humboldt gravel bar in river 10 mi se Dinsmore's (about 4 mi se of Kuntz); Van Duzen River Comment
  UC469417 Image available Salix lasiolepis Joseph P. Tracy 1927-8-7 8305 Humboldt Redwood Creek, at Berry's 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
  UC470408  Salix lasiolepis Joseph P. Tracy 1931-9-19 9675 Humboldt Alton Northern Coast Region 30 Comment
  UC490549  Salix lasiolepis Joseph P. Tracy 1932-4-24 9804 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC495609  Salix lasiolepis Joseph P. Tracy 1932-10-12 10877 Humboldt bank <of> S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R., Miranda 121 Comment
  UC506384  Salix lasiolepis Joseph P. Tracy 1933-4-2 10961 Humboldt on Trinity Hwy e Redwood Creek; Northern Coast Ranges, Berry's Mt. 762 Comment
  UC506399  Salix lasiolepis Joseph P. Tracy 1932-8-21 10359 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower western foothills of mt.) 457 Comment
  UC506504  Salix lasiolepis Joseph P. Tracy 1932-8-21 10358 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower western foothills of mt.) 457 Comment
  UC511990  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1241 Humboldt Blue Slide Van Duzen River 91 Comment
  UC512000  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1236 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC519328  Salix lasiolepis Joseph P. Tracy 1933-5-14 12180 Humboldt Willow Creek, near county road bridge Trinity River Valley 152 Comment
  UC519336  Salix lasiolepis Joseph P. Tracy 1933-5-20 12264 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UCD111589  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 01333 Humboldt Trinity River, near bridge on Trinity Highway. 152 Comment
  UCSB10872  Salix lasiolepis Parks, Harold; Parks, Susan 1931-8-15 Humboldt Blue Slide, Van Duzen River 100 Comment
  POM220140  Salix lasiolepis var. bigelovii H. E. Parks, Joseph P. Tracy 1931-5-17 976 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  CAS-BOT-BC107412  Salix lasiolepis var. lasiolepis Alice Eastwood 1907-4-21 24 Humboldt Trinidad Comment
  CAS-BOT-BC128202  Salix lucida Doris K. Kildale 1927-3-20 2926 Humboldt Stevens Grove - South Fork of Eel River near Miranda Comment
  POM184868  Salix lucida subsp. lasiandra H. E. Parks, Susan T. Parks 1932-5-12 1150 Humboldt Near bridge at mouth of Maple Creek. Big Lagoon. Comment
  CAS-BOT-BC125611  Salix melanopsis Harold E. Parks 1931-5-14 0956 a Humboldt Van Duzen River above Bridgeville 300 Comment
  JEPS12974  Salix melanopsis Joseph P. Tracy 1932-5-1 9850 Humboldt along Van Duzen River Alton; Northern Coast Ranges 30 Comment
  JEPS13080  Salix melanopsis Joseph P. Tracy 1939-8-5 16393 Humboldt Van Duzen River at Dinsmore's 737 Comment
  LA208934  Salix melanopsis Harold E. Parks; 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  POM220143  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  UC176691  Salix melanopsis Joseph P. Tracy 1913-6-18 4198 Humboldt Dinsmore's Ranch opposite Buck Mt.; North Coast Ranges, Van Duzen R. Valley 762 Comment
  UC469449  Salix melanopsis Joseph P. Tracy 1931-5-3 9348 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC469458  Salix melanopsis Joseph P. Tracy 1931-9-19 9681 Humboldt Van Duzen R. Alton; Northern Coast Region, Van Duzen R. 30 Comment
  UC481298  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 967 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  CAS-BOT-BC129156  Salix scouleriana Doris K. Kildale 1926-11-26 2836 Humboldt Pine's Pasture - Eureka Comment
  JEPS89298  Salix scouleriana Joseph P. Tracy 1937-3-21 15236 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  UC506350  Salix scouleriana Joseph P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC525977  Salix scouleriana H. E. Parks 1933-1-24 1353 Humboldt Spruce Cove (Parks Ranch) Trinidad; , Spruce Cove (Parks Ranch) Comment
  CAS-BOT-BC128951  Salix sitchensis L. R. Abrams 1916-7-11 6047 Humboldt In river gravel, mouth of Grizzly Creek on Van Duzen River Comment
  CAS-BOT-BC128991  Salix sitchensis Doris K. Kildale 1926-6-29 2236 Humboldt Mouth of Mad River Comment
  HSC20106  Salix sitchensis H. E. Parks 1931-3-24 913 Humboldt Vicinity of Fortuna Comment
  JEPS38498  Salix sitchensis Milo S. Baker 1923-7-23 89 Humboldt Manning Creek Comment
  POM161040  Salix sitchensis Joseph P. Tracy 1926-12-5 7833 Humboldt Blue Slide on van Duzen River. 91 Comment
  UC303028  Salix sitchensis Joseph P. Tracy 1926-2-21 7359 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC506363  Salix sitchensis Joseph P. Tracy 1933-3-19 10929 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 Comment
  UC1222585  Salsola tragus Joseph P. Tracy 1950-8-20 19323 Humboldt 8 mi. below Orleans (Klamath R. near Slate Creek, at Big Bar); Klamath R. 121 Comment
  RSA28377  Sambucus callicarpa E. K. Balls, P. C. Everett 1953-10-12 18633 Humboldt moist ditches, road to Crannell, 0.5 mi. E from Hwy 101, near first overhead bridge. 15 Comment
  JEPS13393  Sambucus racemosa var. racemosa Lincoln Constance 1934-5-26 679 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (s end, sand and gravel bar of river) 45 Comment
  UC154205  Sanguisorba annua Joseph P. Tracy 1908-6 2816 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA183619  Sanguisorba minor D. E. Anderson 1965-5-1 3577 Humboldt Along Trinity River at Hoope. Comment
  HSC104438  Sanguisorba officinalis J. Martin, Bianca Hayashi, Cheri Sanville 2012-8-28 Humboldt Northern end of Christmas Prairie Lake Comment
  UC180212  Sanguisorba officinalis subsp. microcephala Joseph P. Tracy 1914-9-6 4602 Humboldt Bald Mountain, between High Prarie and Snow Camp Northern Coast Ranges 1219 Comment
  HSC21610  Sanicula arctopoides S. J. Hawks 1965-3-12 1 Humboldt W of Eureka Airport Comment
  HSC45318  Sanicula arctopoides R. A. Vanbianchi 1972-3-29 129 Humboldt Samoa Peninsula,W side, across from public boat ramp Comment
  JEPS184  Sanicula arctopoides Joseph P. Tracy 1936-5-30 14838 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC1197114  Sanicula arctopoides Joseph P. Tracy 1918-4-7 4860 Humboldt mouth of Strawberry Creek, Dow's Prairie, Northern Coast Ranges Strawberry Creek; Northern Coast Ranges, , Dow's Prairie 6 Comment
  HSC39006  Sanicula bipinnatifida Thomas W. Nelson, Jane P. Nelson 1976-5-31 2648 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  BLMAR225  Sanicula crassicaulis Jennifer Anthony-Wheeler 1996-7-11 225 Humboldt N.Dobbyn creek, growing throughout understory with I mixed evergreen forest 1005 Comment
  HSC74223  Sanicula graveolens M. A. Baker 1980-7-19 3016 Humboldt Near Bret Hole. 1814 Comment
  HSC39422  Sanicula graveolens Thomas W. Nelson, Jane P. Nelson 1976-6-15 2731 Humboldt Growing on FS road N of Alder Springs 1524 Comment
  UC1197085  Sanicula laciniata Joseph P. Tracy 1923-6-20 6343 Humboldt Northern Coast Ranges, Garberville Garberville; Northern Coast Ranges, Garberville 121 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
  HSC101026  Sanicula tuberosa Jenny Moore 2007-6-14 29 Humboldt Pilot Creek Watershed, west of South Fork Mountain, Dan East Trail (5E14). 976 Comment
  UC1222738  Sanicula tuberosa Joseph P. Tracy 1950-7-1 18943 Humboldt near Clear Lake (where Friday Ridge Road comes to top of Grouse Mountain Ridge, at summit of Grouse Mountain); Grouse Mountain 1524 Comment
  HSC102071  Saxifraga aprica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 973 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  POM266005  Saxifraga mertensiana Lincoln Constance, Reed C. Rollins 1942-5-11 2869 Humboldt 3 miles W of East Fork of Willow Creek. Comment
  UCSB23755  Schoenoplectus pungens Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samosa on peninsula; on western side of Humboldt Bay Comment
  UC1541346  Scirpus acutus var. occidentalis Harold E. Parks Aug 1934 5156 a Humboldt Dry Lagoon Comment
  UC668011  Scirpus cernuus Joseph P. Tracy 1938-6-16 15942 Humboldt Trinidad 3 Comment
  UC668012  Scirpus cernuus Joseph P. Tracy 1934-7-13 13386 Humboldt Trinidad 91 Comment
  HSC58816  Scirpus congdonii G. L. Clifton, Griswold 1979-8-1 12072 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC59434  Scirpus microcarpus Kenneth Clark 1979-4-21 141 Humboldt Clam Beach, 3.5 mi. N of McKinleyville on Hwy. 101 Comment
  SEINET3914801  Scirpus microcarpus Thomas W. Nelson, James Nelson 1976-7-28 3048 Humboldt Flora of the Lassics. At Alder Springs along 2S08.; 0 1554 Comment
  CDA39390  Scoliopus bigelovii Q. L. Holdeman 1963-2-2 s.n. Humboldt West side of Highway 101, just north of Redcrest. 0 Comment
  POM292611  Scoliopus bigelovii Lyman Benson 1927-7-12 818 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  SEINET12050514  Scoliopus bigelovii F. H. Utech 1988-1 88 -025 Humboldt 2 mi W of Pepperwood along Ave of the Giants (alt US 101), mile marker 45.40 65 Comment
  BLMAR679  Scrophularia californica Jennifer Wheeler 2013-7-17 679 Humboldt King range, Mattole Beach parking lot 6 Comment
  CHSC31329  Scrophularia californica Mark Stopher 1980-6-4 87 Humboldt Along roadside and along Elk River near Rte 101 bridge. 1 Comment
  HSC100682  Scrophularia californica Carl C. Marshall Apr 1886 175 Humboldt Everywhere. Comment
  HSC60289  Scrophularia californica Phyllis Krieg 1979-4-21 Humboldt Above Clam Beach Lagoon, E of Hwy. 101 0 Comment
  SEINET5223991  Scrophularia californica Unknown 2002-8-22 88 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  UC577323  Scutellaria antirrhinoides Joseph P. Tracy 1930-6-15 8763 Humboldt Dobbyn Creek 152 Comment
  UC154008  Scutellaria antirrhinoides Joseph P. Tracy 1908-6 2914 Humboldt nw slope of Buck Mountain; Northern Coast Ranges, Buck Mountain 1219 Comment
  HSC56937  Sedum obtusatum subsp. retusum G. L. Clifton, Butler 1979-7-23 9405 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  JEPS25690  Sedum spathulifolium P. C. Hutchison 1961-5-22 2020 Humboldt 5.4 mi ne of Klamath River bridge at Weitchpec (10 mi sw of Orleans, Hiway US299, w side of Klamath River on steep rocks above road); w side Klamath River, ne Weitchpec, sw Orleans Comment
  UC1198830  Sedum spathulifolium Joseph P. Tracy 1926-7-25 7747 Humboldt on rocks at point called Devil's Canyon Northern Coast Region, , Devil's Canyon (Big Lagoon) 152 Comment
  HSC89448  Sedum spathulifolium var. pruinosum P. A. Daly 1984-7-15 33 Humboldt Trinidad Head 61 Comment
  CHSC79937  Selaginella wallacei L. P. Janeway 1996-8-4 5061 Humboldt High North Coast Ranges. Along Titlow Hill Road (Road #1) about 0.3 mi west of the spur road to top of Horse Mountain. 1341 Comment
  CAS-BOT-BC364018  Senecio integerrimus var. major L. B. Kildale 1928-5-27 5957 Humboldt Kneeland Prairie 853 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
  HSC58076  Senecio triangularis G. L. Clifton, Griswold 1979-8-1 11977 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC1199234  Senecio triangularis Joseph P. Tracy 1933-7-25 12846 A Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC12561  Senecio vulgaris D. La Conte 1970-11-7 10 Humboldt Comment
  HSC6135  Senecio vulgaris S. R. Johnson 1965-4-16 42 Humboldt 1 mi. N of Luffenholtz Beach Comment
  CAS-BOT-BC85838  Sequoia sempervirens Doris K. Kildale 1927-5-15 3160 Humboldt Petrolia Bridge Mattole River Comment
  HSC34728  Sequoia sempervirens R. E. Cooksey Sep 1972 54 Humboldt Between Miranda and Phillipsville on Avenue of the Giants 30 Comment
  SEINET3876375 Image available Sequoia sempervirens Richard R. Halse 1989-5-13 3842 Humboldt Along U.S. Hwy 101, 2 miles south of Weott.; 0 108 Comment
  UC1530712  Sequoia sempervirens R. W. Becking 1984-9-23 Humboldt Federation of Women's Grove Humboldt Co. Weott, Humboldt Redwoods State Park, Federation (Humboldt Co. Weott <sic>, Humboldt Redwoods State Park) Comment
  UC544763 Image available Sequoia sempervirens E. Fritz Apr 1934 8012 Humboldt Richardson Grove Comment
  HSC98000  Sericocarpus oregonensis var. oregonensis Cara Witte 2007-8-1 610 Humboldt National Forest 1 on Kinsey Ridge. 1 1/2 miles north of White Oak Opening. 1256 Comment
  HSC19860  Sherardia arvensis Paul Shields May 1955 Humboldt Horse Mountain Comment
  RSA46486  Sherardia arvensis Doris K. Kildale 1926-4-25 1806 Humboldt Willow Creek Flat. 152 Comment
  JEPS50089  Sidalcea diploscypha Lincoln Constance 1934-5-23 613 Humboldt sw slope Upper end Look Prairie Bull Creek Region, South Fork Eel River, Look Prairie (South Fork Eel River, Bull Creek Region) 365 Comment
  CAS-BOT-BC205577  Sidalcea malachroides F. H. Utech 1986-5-23 86 -399 Humboldt Ca. 3.0 mi NW of Petrolla on Mattole Road (Humboldt Co. hwy F3C) enroute to Capetown 80 Comment
  UC1222509  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19033 Humboldt on the Butter Valley Road 2 mi e Cameron Hill Junction (near Kneeland); e of Cameron Hill Jct, near Kneeland Comment
  UC18696  Sidalcea malachroides J. Burtt Davy 1899-6-13 5482 Humboldt Englewood Prairie North Coast Ranges, Englewood Prairie Comment
  UC668136  Sidalcea malachroides Joseph P. Tracy 1938-6-15 15938 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  UC302048  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1926-6-20 7659 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  RSA144570  Sidalcea malviflora subsp. patula Peter H. Raven, R. Snow 1958-7-20 s.n. Humboldt 2 miles south of jct. of Friday Ridge Road on Titlow Hill Road, near Grouse Mountain Comment
  HSC103134  Silene bolanderi M. Mesler 2010-5-30 818 Humboldt Rd from Hwy 3 to Wildwood, near Gemmill Gulch 1003 Comment
  UC1198362  Silene californica Joseph P. Tracy 1898-7-13 267 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UC419028  Silene californica H. E. Parks May 1930 751 Humboldt vicinity Hydesville; vicinity of Hydesville Comment
  UC1198366  Silene gallica Joseph P. Tracy 1905-6-4 2185 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  CAS-BOT-BC389062  Silene laciniata subsp. californica A. M. Vollmer; L. Beane 1951-6-6 126 Humboldt On road between Orick and Weitchpec Comment
  UC1198282  Sinapis arvensis J. P. Tracy 1906-6-20 2494 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC75283  Sisymbrium officinale Doris K. Kildale 1926-4-4 1725 Humboldt Eureka. Comment
  UC552236  Sisymbrium officinale Joseph P. Tracy 1933-8-22 12976 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC1108989  Sisyrinchium bellum H. E. and S. T. Parks June, 1936 5599 Humboldt Spruce Cove; Trinidad Comment
  CHSC19509  Sisyrinchium californicum Norman Dennis 1965-6-3 142 Humboldt Sphagnum bog at Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  UC1103494  Smilacina racemosa Joseph P. Tracy 1937-7-2 15413 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  UC1197804  Smilacina racemosa Joseph P. Tracy 1936-8-7 15106 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UC1541352  Smilacina stellata W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  RSA377726  Smilacina stellata var. sessilifolia Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  JEPS12065  Solanum furcatum Joseph P. Tracy 1940-10-5 16749 Humboldt Trinidad, near boat landing Trinidad 9 Comment
  UC154277  Solanum umbelliferum Mrs. M. H. Manning 1901-6-7 88 Humboldt near Hupa Comment
  UC26254  Solanum umbelliferum Harley P. Chandler 1901-6-1 1351 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC58149  Solidago elongata G. L. Clifton, Griswold 1979-8-2 12196 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC76412  Solidago elongata D. K. Imper 1981-7-21 887 Humboldt Near Table Bluff 38 Comment
  UC1223177  Solidago elongata Joseph P. Tracy 1949-8-11 18458 Humboldt Snow Camp 1402 Comment
  LA204243  Solidago lepida var. salebrosa S. T. Parks; H. E. Parks 1930-9-14 785 Humboldt North shore of Big Lagoon Comment
  CAS-BOT-BC365672  Solidago spathulata Doris K. Kildale 1926-4-9 1745 Humboldt Samoa Peninsula Comment
  RSA21022  Solidago spathulata C. B. Wolf 1937-9-12 9332 Humboldt Clam Beach. 8 Comment
  RSA0043130  Solidago spathulata Patricia Wilder 1968-8-21 4401 Humboldt Northern coastal arm of Humboldt Bay, ca. two miles southwest of Samoa. Humboldt Bay drainage area. 8 Comment
  SEINET11383162 Image available Solidago spathulata S. K. Harris 1939-1 990 Humboldt At Samoa. Comment
  CAS-BOT-BC365811  Soliva sessilis L. R. Abrams 1918-6-12 7080 Humboldt In street, Eureka Comment
  UC164789  Sonchus oleraceus J. P. Tracy 1903-8-2 1926 Humboldt immediate vicinity Eureka 0 Comment
  UCD136155  Sonchus oleraceus Linda M. Barker 1976-7-5 1644 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC374596  Sonchus oleraceus F. J. Kirby 1958-7-1 s.n. Humboldt West of Bridgeville 152 Comment
  RSA10099  Sorghum halepense Joseph P. Tracy 1925-9-6 7263 Humboldt Trinity River Valley, Near the south fork Comment
  CHSC69844  Sparaxis Duain Goforth 1977-4-19 Humboldt Arcata. Comment
  HSC89257  Spartina alterniflora Karen Kovacs 1989-10-26 Humboldt .5 mi. N of Samoa-Eureka bridge, E of Hwy. 255, Humboldt Bay Comment
  UC668080  Spergularia rubra Joseph P. Tracy 1936-6-3 14850 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC40970  Spiraea douglasii Linda M. Barker 1976-6-14 1600 Humboldt 3 mi. W of Arcata Comment
  RSA239688  Spiraea douglasii Larry E. DeBuhr 1973-4-23 996 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  RSA246715  Spiraea douglasii Robert F. Thorne, Percy C. Everett 1965-8-7 35195 Humboldt At S end of Big Lagoon. 2 Comment
  SBBG3128  Spiraea douglasii M. J. Cody 1938-7-14 Humboldt near Trinidad Comment
  UC14209  Spiraea douglasii Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  HSC16658  Spiranthes romanzoffiana J. Wendell Howe 1934-7-20 1311 Humboldt Arcata Comment
  UC666995  Spiranthes romanzoffiana Joseph P. Tracy 1937-8-12 15640 Humboldt Snow Camp 1402 Comment
  HSC37591  Spiranthes romanzoffiana J. D. Ackerman 1976-8-6 784 Humboldt Sand Hills across from Samoa Blvd. at intersection of Samoa Blvd. and tunroff to Samoa Bridge Comment
  UC666993  Spiranthes romanzoffiana Joseph P. Tracy 1934-7-21 13477 Humboldt near Samoa (edges of dunes); Humboldt Bay 6 Comment
  UC630639  Stachys ajugoides var. ajugoides Joseph P. Tracy 1939-6-23 16312 Humboldt Park's garden Trinidad 3 Comment
  UC668219  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-15 15937 Humboldt vicinity Carlotta 30 Comment
  UCLA71143  Stachys ajugoides var. rigida Joseph P. Tracy 1938-8-21 16132 Humboldt in front of s end Stone Lagoon (along coast); Dry Lagoon 3 Comment
  POM301655  Stachys chamissonis Carl B. Wolf 1941-7-28 11087 Humboldt between the redwood highway and Crannell. 8 Comment
  HSC74423  Stachys rigida Gail Newton 1980-8-10 2046 Humboldt Near Blake Mtn. 1707 Comment
  UC1198344  Stellaria borealis subsp. sitchana Joseph P. Tracy 1949-6-25 18349 Humboldt Box Camp; Trinity Summit 1524 Comment
  UC1223445  Stellaria crispa Joseph P. Tracy 1950-7-15 19042 Humboldt near mouth of Raccoon Creek (Willow Creek vicinity, 1 mi ne of Patterson's Ranch); Willow Creek Comment
  BLMAR677  Stipa lemmonii var. lemmonii Jennifer Wheeler 2013-7-10 677 Humboldt King range, HJ Ridge 609 Comment
  CAS-BOT-BC87618  Streptanthus tortuosus Volney Rattan 1878-1-1 s.n. Humboldt Unpsecified. Comment
  UC162648  Streptanthus tortuosus var. orbiculatus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5664 Humboldt Hoopa Mt. Comment
  HSC57200  Streptanthus tortuosus var. tortuosus Terry Griswold, Marvin Butler 1979-7-10 7106 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC58158  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-8-2 12218 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC58025  Streptopus amplexifolius G. L. Clifton 1979-7-31 11833 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC154162  Swertia albicaulis var. nitida Harley P. Chandler Jun 1901 1383 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC58186  Swertia radiata G. L. Clifton, Griswold 1979-8-2 12275 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC198632  Swertia radiata Joseph P. Tracy 1917-9-2 4851 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  HSC3999  Symphoricarpos albus var. laevigatus J. E. Lankila 1962-5-14 18 Humboldt W bank of Eel River across from Shively abour 500 ft. N of Bear Creek. Comment
  UCD150385  Symphyotrichum lentum William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Little River. Comment
  UC223712  Symphyotrichum subspicatum Elmer I. Applegate 1923-9-13 3992 Humboldt Stone Lagoon, (along seashore, edge of redwoods) Comment
  SEINET11071711 Image available Symphytum asperum Joseph P. Tracy 1943-1 17448 Humboldt Near Iverson Dairy Ranch, Arcata Comment
  SEINET11116061  Symphytum asperum Unknown 1968-1 2120 Humboldt Plants of California HUMBOLDT CO.: approx. 2 miles east of Hwy. jct. U.S. 101 & Tompkins Hill Road, on Tompkins Hill Road, south of Eureka. Elevation approx. 100 feet. Comment
  UC1199278  Tanacetum balsamita Joseph P. Tracy 1936-9-18 15188 Humboldt Trinity River Valley, at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC6252  Tanacetum bipinnatum D. B. Bader 1963-5-1 2 Humboldt Second of Clam Beach Lagoons, W of Hwy. 101, along R.R. tracks Comment
  CAS-BOT-BC376731  Tanacetum bipinnatum Peter H. Raven 1962-8-26 18075 Humboldt Dunes just south of Samoa Comment
  RSA28303  Tanacetum camphoratum E. K. Balls, Percy C. Everett 1953-10-11 18636 Humboldt Big Lagoon on South Shore. 2 Comment
  UC1223145  Taraxacum officinale Joseph P. Tracy 1943-4-10 17415 Humboldt Eureka Comment
  HSC6269  Taraxacum officinale R. D. Modafferi 1965-3-14 6 Humboldt 0.6 mi. N of Trinidad on Trinity St. 305 Comment
  UC1196938  Taraxia ovata Joseph P. Tracy 1939-4-18 16215 Humboldt w side of river Garberville 152 Comment
  HSC59852  Tauschia kelloggii M. A. Baker 1979-7-6 1007 Humboldt Just past the 4 mi. marker on Eyesee Rd. from Hwy. 96 Comment
  CAS-BOT-BC85211  Taxus brevifolia Henry M. Pollard 1986-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC1595  Taxus brevifolia F. Morrell 1949-5-22 33 Humboldt E of Berry Summit , Hwy. 299 Comment
  SJSU685  Taxus brevifolia A. W. Jacobs 1941-6-15 Humboldt border of road (Hwy 299) between Blue Lake & Redwood Creek Comment
  HSC32947  Tellima grandiflora Thomas W. Nelson, James Nelson 1973-5-28 960 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC97605  Tellima grandiflora Cara Witte 2007-6-7 221 Humboldt Along National Forest 1. Approximately 1 mile north of cattle guard. Comment
  CAS-BOT-BC447406  Tellima grandiflora Kenneth Clark 1980-3-23 536 Humboldt Point Delgada; Alluvial terrace of south fork Dead Man's Gulch; Vascular Plants of Shelter Cove Comment
  UC160904  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1908-6 2714 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC162827  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1906-6-24 2501 Humboldt near Fields Landing; Northern Coast Region, Region about Humboldt Bay, Humboldt H 0 Comment
  HSC1186  Thelypteris nevadensis J. P. Tracy 1937-7-25 15556 Humboldt Happy Camp Mtn., Trinity Summit Range, NE of Hawkins Bar 1280 Comment
  UC495728  Thermopsis gracilis Joseph P. Tracy 1929-7-4 8612 Humboldt French Camp Ranch; Northern Coast Ranges 1066 Comment
  UC673060  Thermopsis gracilis Joseph P. Tracy 1937-5-31 15326 Humboldt rocky point at Ruby Creek (along Trinity Hwy); Willow Creek Canyon 518 Comment
  RSA119371  Thermopsis robusta S. Tillett 1956-7-6 620 Humboldt 11 miles from Orleans on Bar Shanty Road 1159 Comment
  UC902017  Thlaspi arvense Joseph P. Tracy 1949-7-9 18338 Humboldt near Freshwater Corners; near Freshwater Corners 30 Comment
  UC902019  Thlaspi arvense Joseph P. Tracy 1949-9-29 18582 Humboldt near Freshwater Corners; near Freshwater Corners 30 Comment
  OBI35885  Thuja plicata David J. Keil 1983-7-1 17294 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  UC1198819  Thysanocarpus curvipes Joseph P. Tracy 1933-5-18 12188 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  CAS-BOT-BC88327  Thysanocarpus curvipes Mark Bransom; Daniel Brown; Ron Hildebrandt; Nina Meiselman 1986-4-19 30 Humboldt Across Route 299 from sign for White's Bar Picnic area. Comment
  HSC99404  Tiarella trifoliata var. unifoliata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 53 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCR64482  Tiarella trifoliata var. unifoliata Lyman Benson 1928-7-11 454 Humboldt Dyerville, Bull Creek, S. Fork Eel River, Bull Creek Flat. 120 Comment
  UC1173638  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1930-7-17 8993 Humboldt McKay Camp South Fork Mountain Comment
  HSC56107  Tolmiea diplomenziesii G. L. Clifton 1979-7-31 11858 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC70846  Tolmiea diplomenziesii M. A. Baker 1980-6-7 1827 Humboldt Near Ammon Creek 732 Comment
  UC14482  Tolmiea diplomenziesii Chesnut and Drew 1888-7-9 Humboldt near Arcata Comment
  JEPS49718  Tolmiea diplomenziesii W. L. Jepson 1902-7-11 2013 Humboldt South Fork of Trinity River; Martin's Ranch Comment
  RSA183607  Tolmiea menziesii E W Styskel 1963-5-19 39 Humboldt 3 miles S.E. of Korbel, on Snow Camp Road. 305 Comment
  RSA41966  Tolmiea menziesii H. C. Cantelow 1935-6-13 1095 Humboldt East of Arcata. Road to Weaverville. Comment
  UC1197331  Torilis arvensis subsp. arvensis Joseph P. Tracy 1940-8-3 16692 Humboldt Cathey Ranch near Miranda 30 Comment
  BLMAR155  Toxicodendron diversilobum Donald Hazlett 1994-6-7 155 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  JEPS63913  Toxicodendron diversilobum W. L. Jepson 1932-8-1 16469 Humboldt Bull Creek 121 Comment
  CAS-BOT-BC323056  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  UCD136879  Tracyina rostrata Joseph P. Tracy 1950-6-23 18859 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint. 213 Comment
  UC668266  Trautvetteria caroliniensis var. occidentalis Joseph P. Tracy 1937-7-25 15564 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC98856  Triantha occidentalis subsp. occidentalis Cara Witte 2008-7-30 973 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  HSC17943  Trientalis latifolia Yarick 1960-8-3 Humboldt K&K. Kruger Cr. Comment
  HSC54597  Trientalis latifolia Overton, Butler 1979-7-24 9676 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1197240  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1915-6-27 4659 Humboldt near Carlotta (Yager Creek); Northern Coast Ranges 60 Comment
  CDA4306  Trifolium angustifolium B. Morrison 1974-7-22 Humboldt Approximately six miles east of Capetown, on Bear River Road. 0 Comment
  RSA739607  Trifolium arvense John Dittes, Josephine Guardino 2003-6-7 2003 -65 Humboldt 7.7 air SW of Orleans, 4.1 air miles NE of confluence of Trinity River and Klamath River., 0.3 air mile NW of confluence of Klamath River and Aikens Creek, along entrance road to Aikens Creek Campground. 107 Comment
  UC16424  Trifolium barbigerum Harley P. Chandler May, 1901 1102 Humboldt Humboldt Bay; North Coast Ranges Comment
  UC1223515  Trifolium barbigerum Joseph P. Tracy 1948-5-31 17984 Humboldt 1/2 mi ne Garberville (bench) 304 Comment
  HSC49248  Trifolium bifidum R. Sutherland 1978-5-19 4 .19578 Humboldt Mckee Flat 296 Comment
  UC1223328  Trifolium campestre Joseph P. Tracy 1938-6-7 15857 Humboldt 5 mi se Korbel (Canyon Creek) Comment
  HSC100886  Trifolium cyathiferum Carl C. Marshall Jun 1887 453 Humboldt Jewett Creek. Comment
  HSC45124  Trifolium depauperatum R. Sutherland 1978-5-2 1 .2578 Humboldt 341 Comment
  UC1103438  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1921-5-30 5481 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC249727  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1921-5-30 5480 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA168861  Trifolium dichotomum Joseph P. Tracy 1943-5-9 17420 Humboldt Trinity River at Willow Creek. Comment
  HSC104458  Trifolium dubium Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 11 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  POM313548  Trifolium dubium P. B. Kennedy 1929-6-12 10323 Humboldt Eureka. Comment
  UC1223469  Trifolium dubium Joseph P. Tracy 1948-6-10 180066 Humboldt w Trinidad (beach) 3 Comment
  RSA91498  Trifolium dubium F. W. Peirson 1923-7-11 3622 Humboldt 20 miles north of Eureka Comment
  HSC44835  Trifolium eriocephalum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3603 Humboldt Along old trail N of Alder Spring 1555 Comment
  HSC100534  Trifolium fucatum Carl C. Marshall Mar 1886 18 Humboldt Hills. Comment
  HSC48612  Trifolium fucatum Mark Flippo 1978-5-18 61 Humboldt Hwy. 101 N jct. with Giuntoli Lane Comment
  UC1223455  Trifolium fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt 1 mi e Cape Mendocino; Cape Ridge 152 Comment
  UC1541583  Trifolium fucatum H. E. and S. T. Parks May 1930 738 Humboldt vicinity Bridgeville Comment
  UCD111199  Trifolium hirtum B. L. Kay 1955-6-2 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  HSC77334  Trifolium incarnatum C. J. Thomas 1983-5-9 28 Humboldt Adjacent to Hwy. overpass walkway near HSU 23 Comment
  HSC71336  Trifolium longipes J. P. Smith 1976-5-30 8828 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  HSC102636  Trifolium longipes subsp. elmeri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1620 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  POM214887  Trifolium longipes subsp. hansenii Joseph P. Tracy 1930-6-8 8726 Humboldt Kneeland Prairie. Comment
  HSC71633  Trifolium microcephalum J. P. Smith 1973-5-26 6878 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC494186  Trifolium microcephalum H. E. and S. T. Parks 1930-5-25 883 Humboldt Laribee Valley Comment
  UC1103448  Trifolium microcephalum Joseph P. Tracy 1929-5-5 8574 Humboldt along Sout Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1197488  Trifolium obtusiflorum Joseph P. Tracy 1920-5-18 5330 Humboldt 4 mi above mouth of Eel River (Forest Lodge, on South Fork); Northern Coast Ranges 60 Comment
  SEINET4178477 Image available Trifolium oreganum Unknown 1927-6-12 8122 Humboldt Horse Mountain 1524 Comment
  UCD109372  Trifolium repens Tofsrud 1948-9-1 s.n. Humboldt 3 mi. S. of Scotia. Comment
  HSC32427  Trifolium subterraneum Linda M. Barker 1974-5-11 175 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  UC1197562  Trifolium variegatum var. variegatum Joseph P. Tracy 1927-6-17 8283 Humboldt lower w foothills of Chaparral Mtn (Three Cabins); Northern Coast Ranges 457 Comment
  SEINET12157351  Trifolium willdenovii J. P. Tracy 1942-1 17358 Humboldt 1 mi NE of Garberville on road to Harris 305 Comment
  HSC2149  Trifolium wormskioldii J. P. Tracy 1926-7-25 7750 Humboldt Big Lagoon Comment
  HSC46954  Trifolium wormskioldii J. P. Smith, T. Nelson 1977-6-30 9207 Humboldt Samoa Peninsula just E of the drag strip. Comment
  JEPS66096  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6273 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  UC1541579  Trifolium wormskioldii Harold E. Parks May 1934 4329 Humboldt Spruce Cove Trinidad Comment
  HSC15188  Trifolium wormskioldii J. W. Johnson 1962-5-13 1353 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  UC495675  Trifolium wormskioldii Joseph P. Tracy 1927-7-17 8281 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mtn 457 Comment
  HSC14167  Triglochin maritima S. J. Moore 1965-5-8 15 Humboldt Marsh adjacent to Mad River Slough. Comment
  RSA69588  Triglochin maritima F. W. Peirson 1923-7-11 6478 Humboldt Flats north of Eureka. Comment
  CHSC96700  Triglochin striata Gordon Leppig 1999-10-25 1267 Humboldt State Highway 101, mile marker 61.40. Ditch on east side of highway. UTM zone 10, 4519N, 406 E. 2 Comment
  HSC97549  Triglochin striata Ivy Watson 2008-9-20 30 Humboldt N of mouth of Mad River, along small tributary E of sand dunes 4 Comment
  CAS-BOT-BC133389  Trillium ovatum Alice Eastwood 1907-4-21 28 Humboldt Port Trinidad Comment
  CHSC2321  Trillium ovatum V. Holt 1933-4-11 Humboldt Comment
  SEINET12051379  Trillium ovatum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -289 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  SEINET3888797  Trillium ovatum S. R. Johnson 1965-3-19 15 Humboldt 2 miles north of Luffenholtz Beach.; 0 Comment
  UC1103502  Trillium ovatum Ralph Ferguson 1948-4-9 Humboldt Sutter tract Eureka 60 Comment
  RSA135459  Triodanis biflora Volney Rattan 1883-6-30 s.n. Humboldt Redwood Creek. Comment
  UC416790  Triodanis biflora Harley P. Chandler 1901-6-16 1514 B Humboldt Somes Bar North Coast Ranges, Klamath River, Somes Bar (Camp 276) 426 Comment
  UC602558  Triodanis perfoliata Joseph P. Tracy 1932-6-14 10154 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  SEINET10459937  Triodanis perfoliata Willis L. Jepson Jepson 1940 Humboldt REDWOOD CREEK Comment
  JEPS26219  Triphysaria eriantha subsp. eriantha J. P. Tracy 1911-5-30 3207 Humboldt at Eureka Bucksport (Bucksport); Northern Coast Region, Eureka 0 Comment
  UC902255  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1944-5-14 17465 Humboldt at Bucksport (near Eureka); , at Bucksport 6 Comment
  JEPS10422  Triphysaria eriantha subsp. rosea Joseph P. Tracy 1941-4-3 Humboldt Samoa , Samoa (Humboldt Bay) Comment
  BLMAR604  Triphysaria pusilla Jennifer Wheeler 2011-4-1 604 Humboldt King range, growing on Mattole beach dunes Comment
  UC1222457  Triphysaria pusilla Joseph P. Tracy 1935-5-25 13905 Humboldt Dobbyn Creek 152 Comment
  UC582572  Triphysaria pusilla Joseph P. Tracy 1931-4-26 9337 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  CDA41899  Triphysaria pusilla E. C. Whitney 1966-4-25 s.n. Humboldt E. Baird property, Hydesville. 0 Comment
  UC1222437  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1942-5-29 17088 Humboldt Eureka 6 Comment
  UC199379  Triphysaria versicolor subsp. faucibarbata Joseph Burtt Davy and Walter C. Blasdale 1899-5 Humboldt Arcata; North Coast Ranges, Arcata Comment
  CAS-BOT-BC199623  Trisetum canescens H. E. Parks; Joseph P. Tracy 1934-6-27 11074 Humboldt Grouse Mt. 1432 Comment
  UC1103148  Trisetum canescens Joseph P. Tracy 1917-5-30 4789 Humboldt Dows Prairie; Northern Coast Ranges 60 Comment
  HSC58671  Trisetum cernuum Gilbert Muth 1979-8-1 12147 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UCD93903  Trisetum cernuum P. B. Kennedy 1923-8-3 s.n. Humboldt South of Scotia. By road through red woods off highway. Comment
  UCD93905  Trisetum cernuum A. H. Murphy 1951-5-15 37 Humboldt Toston Ranch, 3 miles west of Miranda. Comment
  RSA378030  Triteleia hyacinthina Hutchinson 1927-05 s.n. Humboldt [No locality information provided] Comment
  HSC81661  Triteleia laxa Thomas W. Nelson, Jane P. Nelson 1980-7-13 6060 Humboldt Along the rd. from Dinsmore to Anderson Ford-McKeown Ranch rd. 762 Comment
  UC1197715  Triteleia laxa Joseph P. Tracy 1948-5-31 18019 Humboldt Alder Point 152 Comment
  UC175816  Triteleia laxa Joseph P. Tracy 1913-6-19 4210 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  HSC49015  Tropaeolum majus Patricia Shesgreen 1978-8-5 129 Humboldt Along side road on 16th St., 100 yds. E of Union St., Arcata. Comment
  UCD135134  Tsuga heterophylla Roman Gankin 1965-8-7 563 Humboldt Big Lagoon County Park. Comment
  RSA1092  Tsuga heterophylla E. R. Johnson 1928-8-26 1151 Humboldt On Arcata-Hoopa Road. Comment
  CAS-BOT-BC73930  Turritis glabra Alice Eastwood; John Thomas Howell 1937-6-23 4804 Humboldt Little Van Duzen River. Comment
  BLMAR141  Umbellularia californica Donald Hazlett 1994-6-7 141 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC672856  Urtica dioica subsp. holosericea Joseph P. Tracy 1937-7-19 15448 Humboldt Blue Slide on Van Duzen River Blue Slide; Van Duzen River, Blue Slide 91 Comment
  UC562347  Vaccinium cespitosum Joseph P. Tracy 1933-7-16 12792 Humboldt near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC1197787  Vaccinium membranaceum Joseph P. Tracy 1934-8-29 13625 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC562245  Vaccinium membranaceum Joseph P. Tracy 1935-7-22 14121 Humboldt Forks of Tish-Tang-A-Tang Creek Trinity Summit 1371 Comment
  CAS-BOT-BC199314  Vaccinium ovatum M. S. Jussel 1931-5-2 s.n. Humboldt 30 miles n. of Garberville Comment
  CAS-BOT-BC199319  Vaccinium ovatum L. B. Kildale 1930-9-9 10408 Humboldt Bald Mountain 914 Comment
  HSC104091  Vaccinium ovatum Monica Rodriguez, William A. Worley 2015-2-21 9 Humboldt Rock Creek Ranch; 8.2 mi. along South Fork Rd. from Redwood Highway 199. 131 Comment
  HSC47491  Vaccinium ovatum Sheila Logan 1978-4-9 15 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  UC902049  Vaccinium ovatum Joseph P. Tracy 1949-6-20 18323 Humboldt near Boynton Prairie 609 Comment
  UCD166890  Vaccinium ovatum Colleen Rossier 2016-9-17 8 Humboldt Sunny Ridge Road, plot Sunny Ridge Red. 579 Comment
  CAS-BOT-BC199415  Vaccinium parvifolium Harley P. Chandler 1901-5-1 1182 Humboldt Humboldt Bay 30 Comment
  CAS-BOT-BC199424  Vaccinium parvifolium Doris K. Kildale 1927-3-14 1533 Humboldt Southern approach to Blue Slide on old Bridgeville road. Van Duzen River Comment
  CHSC609  Vaccinium parvifolium V. Holt 1933-4-10 Humboldt Comment
  UC1197763  Vaccinium parvifolium Joseph P. Tracy 1938-6-13 15900 Humboldt Horse Mountain 1432 Comment
  UC1239585  Valeriana sitchensis subsp. sitchensis E. Ethel Tracy 1919-8-1 Humboldt Trinity Summit; Northern Coast Ranges; Trinity Summit 1524 Comment
  CAS-BOT-BC76054  Vancouveria hexandra L. R. Abrams 1916-7-11 5983 Humboldt Between Blocksberg and Bridgeville. Comment
  SD73187  Vancouveria hexandra Darley F. Howe 1969-6-4 4630 Humboldt 14.6 miles east of Alton on Highway #36 89 Comment
  CAS-BOT-BC76092  Vancouveria planipetala J. H. Thomas 1949-6-13 921 Humboldt Between Le Perron Flat and Whitneys Peak, along trail. East of town of Orleans. 1066 Comment
  HSC99039  Vancouveria planipetala Cara Witte 2008-7-7 838 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1 mile east of Horse Mountain Mine. 1241 Comment
  UC120019  Velezia rigida Chandler Humboldt Humboldt Bay Comment
  UC1225858  Veratrum viride Joseph P. Tracy 1942-9-6 17312 Humboldt near McKay (South Fork Mountain); South Fork Mountain 1676 Comment
  JEPS11185  Verbascum blattaria Lincoln Constance 1934-5-26 658 Humboldt South Fork of Eel River s end Dyerville Bridge (Bull Creek Region); South Fork Eel River, Bull Creek Region 45 Comment
  HSC21176  Verbascum blattaria David Adams 1960-8-20 Humboldt Whitlow (Sequoia) 60 Comment
  HSC67839  Verbena lasiostachys J. P. Smith 1971-10-9 5027 Humboldt Mad River above the Fish Hatchery. Comment
  HSC55335  Veronica americana Terry Griswold, Marvin Butler 1979-7-12 7179 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  RSA777352  Veronica americana Robert F. Thorne, Percy C. Everett 1965-8-9 35319 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC21211  Veronica persica S. J. Roberts 1965-4-24 15 Humboldt 0.5 mi. S of junction of Iverson and Parton Lanes Comment
  HSC100686  Veronica serpyllifolia Carl C. Marshall Apr 1885 74 Humboldt Ditches about the bay. Comment
  HSC61645  Veronica serpyllifolia subsp. humifusa Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  HSC99374  Veronica serpyllifolia subsp. humifusa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 23 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC147902  Veronica serpyllifolia subsp. humifusa J. P. Tracy 1909-5-2 2958 Humboldt immediate vicinity of Eureka 0 Comment
  HSC99373  Veronica serpyllifolia subsp. serpyllifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 22 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  PASA271  Vicia sativa Frank W. Peirson 1926-7-13 Humboldt Mad River, vicinity of Blue Lake Comment
  HSC15273  Vicia sativa subsp. sativa W. F. Nickel 1965-5-12 Humboldt On H.S.C. campus behind the Biological Sciences building Comment
  HSC71620  Vicia tetrasperma J. P. Smith 1973-5-26 6809 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC175671  Vicia villosa subsp. villosa Joseph P. Tracy 1913-6-10 4085 Humboldt near Bridgeville (Burns ranch); Northern Coast Ranges 304 Comment
  HSC48825  Viola bakeri Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 36 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC73697  Viola bakeri M. A. Baker 1980-7-19 2998 Humboldt Near Bret Hole. 1814 Comment
  RSA168949  Viola cuneata Joseph P. Tracy 1950-7-1 18946 Humboldt Summit near Clear Lake. Grouse Mountain. 1524 Comment
  UC1222521  Viola cuneata Joseph P. Tracy 1950-7-1 18946 Humboldt at summit near Clear Lake; Grouse Mountain 1524 Comment
  HSC34157  Viola glabella Linda M. Barker 1974-5-11 178 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC44358  Viola glabella Brad Klipfel 1974-5-27 398 Humboldt Horse Mtn. Comment
  HSC96267  Viola hallii Eric Schori, Kazuyuki Ishimaru 2005-6-10 9 Humboldt 7.4 mi. S of Rt. 299 on Titlow Hill Rd.; Coldspring Campground spur road 1370 Comment
  RSA135420  Viola hallii Volney Rattan 1882-06 s.n. Humboldt Kneeland Prairie. Comment
  UC1222517  Viola hallii Joseph P. Tracy 1950-7-1 18944 Humboldt near Clear Lake (at summit of Grouse Mountain, where the Friday Ridge Road comes to the top of Ridge); Grouse Mountain 1524 Comment
  SEINET11996974  Viola lobata F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -311 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  UC668247  Viola lobata subsp. integrifolia Joseph P. Tracy 1937-7-2 15408 Humboldt Head of Little Hors-Linto Creek; Trinity Summit. 1371 Comment
  HSC70321  Viola ocellata M. A. Baker 1980-6-7 1872 Humboldt Near Ammon Creek 732 Comment
  HSC21832  Viola ocellata R. A. Rasp 1964-4-25 40 Humboldt 2.5 mi. E of Willow Creek off of Hwy. 299 Comment
  JEPS50263  Viola palustris Joseph P. Tracy 1923-5-31 6242 Humboldt Northern Coast Ranges, Eurkea Eurkea; Northern Coast Ranges, Eurkea 0 Comment
  HSC36500  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1892 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  CHSC24918  Viola sempervirens M. B. Simpson 1976-4-10 21 Humboldt Ca. 1 yd s of Wagon Wheel Rd, ca. .3 mi e of West Haven Dr, ca. 13 mi n of Arcata. 121 Comment
  HSC23603  Viola sempervirens J. O. Sawyer 1971-6-14 2375 Humboldt Above E fork of Horse Linto Creek 1494 Comment
  UC1198427  Viola sempervirens Joseph P. Tracy 1921-3-20 5424 Humboldt Blue Slide on Van Duzen River; Northern Coast Region, , Blue Slide 91 Comment
  HSC98736  Viola sheltonii Cara Witte 2008-6-2 670 Humboldt Along National Forest 1. 1 mile north of 5N18 (road to Spike Buck Mt.) 1583 Comment
  HSC9843  Vulpia bromoides D. B. Bader 1963-3-29 33 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  HSC73252  Vulpia myuros M. A. Baker 1980-5-18 1319 Humboldt Near Black Mtn. 1006 Comment
  UC525643  Vulpia octoflora var. hirtella Joseph P. Tracy 1929-7-4 8618 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  CAS-BOT-BC185939  Vulpia octoflora var. octoflora Joseph P. Tracy 1929-7-4 8618 Humboldt French Camp Ridge 1066 Comment
  BLMAR153  Whipplea modesta Donald Hazlett 1994-6-7 153 Humboldt King range, E-facing slope off hourse mountain ridge Comment
  OBI36661  Whipplea modesta David J. Keil 1983-7-2 17322 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mtn Summit Rd Comment
  SDSU911  Whipplea modesta D. F. Howe 1961-8-2 3121 Humboldt 7.7 Miles east of Orick on Bald Mtn. Road. 610 Comment
  HSC100395  Woodwardia radicans Carl C. Marshall Jun 1885 14 Humboldt Near Jarnigan's and on R. Wood. Comment
  UC128618  Wyethia angustifolia P. E. Goddard Jul 1910 Humboldt Hupa Valley Comment
  UC582641  Wyethia angustifolia Joseph P. Tracy 1937-7-24 15524 Humboldt prairie in Devil's Hole; Trinity Summit 1676 Comment
  UC419036  Wyethia longicaulis H. E. Parks May 1930 740 Humboldt Laribee Valley Comment
  HSC23679  Zeltnera muehlenbergii Tim Baroni 1971-7-5 103 Humboldt 8 mi. E of Petrolia Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
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