Search Results — 2000 specimen records retrieved (1350 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/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
  HSC73545  Abies concolor Gail Newton 1980-7-14 1470 Humboldt Near Last Chance Ridge. 1219 Comment
  CAS-BOT-BC78060  Abies grandis Doris K. Kildale 1926-11-27 2841 Humboldt Alton Hill 45 Comment
  HSC1343  Abies grandis Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  POM89804  Abies grandis Joseph P. Tracy 1919-4-6 5725 Humboldt Around Humboldt Bay, Humboldt Hill. 152 Comment
  HSC55034  Abies procera Overton, Butler 1979-7-31 11480 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  CAS-BOT-BC383850  Abronia latifolia Ira L. Wiggins 1930-7-7 4672 Humboldt Near Samoa Comment
  HSC62997  Abronia latifolia David Wheeler 1979-5-10 103 Humboldt Mad River Beach County Park .25 mi. NW of parking lot Comment
  UCD150384  Abronia umbellata var. breviflora William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Little River. Comment
  UC165810  Acer circinatum J. P. Tracy 1906-4-15 2406 Humboldt near mouth Lindsey Creek (Mad River); , near mouth of Lindsey Creek 30 Comment
  UC35020  Acer circinatum Harley P. Chandler June, 1901 1283 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 1097 Comment
  UC502939  Acer glabrum var. glabrum Joseph P. Tracy 1932-7-12 10475 Humboldt head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  HSC79478  Acer macrophyllum Kenneth Clark 1980-3-27 563 Humboldt Upper alluvial terrace of Dead Man's Gulch 76 Comment
  CDA23775  Acer negundo var. californicum Jeanette N. Griffin 2008-8-28 s.n. Humboldt Ferndale 0 Comment
  CHSC10146  Achillea millefolium J. W. Johnson 1961-8-17 1061 Humboldt Arcata, California. W.M. Lanphere Farm, Samoa Peninsula. Comment
  SEINET2146169  Achillea millefolium H. E. Parks, Parks, S. T. 1943-1 24246 Humboldt Egg Point, Trinidad 120 Comment
  HSC90327  Achillea millefolium Jean Hanson 1980-6-22 105 Humboldt Indian (Gunther) Island, Humboldt Bay, City of Eureka, W end of island Comment
  HSC3338  Achlys triphylla D. E. Anderson 1965-5-1 3575 Humboldt 4-5 mi. W of junction Bluff Creek Rd. and Hwy. 96, along Bluff Creek Rd. Comment
  HSC3331  Achlys triphylla Doris K. Kildale 1926-4-2 1716 Humboldt Briceland Bridge Comment
  HSC3340  Achlys triphylla Lincoln Constance 1934-6-1 773 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  UC1103141  Achnatherum lemmonii Joseph P. Tracy 1926-5-9 7463 Humboldt Valley of South Yager Creek 762 Comment
  UC1145039  Achnatherum lemmonii Joseph P. Tracy 1938-6-17 15968 Humboldt on road from Bull Creek to Upper Mattole (Panther Gap); Panther Gap 822 Comment
  SEINET11682291  Achnatherum lemmonii J. P. Tracy 1951-1 19563 Humboldt halfway between Snow Camp & Twin Lakes (at Preston's old gate near road) Comment
  CAS-BOT-BC216455  Achnatherum occidentale subsp. californicum Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Moutnain Trail 1524 Comment
  UCD103770  Acmispon americanus var. americanus Linda M. Barker 1976-6-1 1548 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD104078  Acmispon brachycarpus H. E. Parks 1941-8-1 24183 Humboldt Little River State Park. 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
  UC1196181  Aconitum columbianum Joseph P. Tracy 1934-7-18 13458 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  HSC44521  Adenocaulon bicolor Brad Klipfel 1973-7-1 128 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC29863  Adenocaulon bicolor Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek near Cody Comment
  HSC98889  Adenocaulon bicolor Cara Witte 2007-6-21 326 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  HSC13040  Adiantum aleuticum C. Kline, D. Santana Oct 1970 44 Humboldt HSC Campus Comment
  UC203315  Adiantum aleuticum Joseph P. Tracy 1916-6-25 4742 Humboldt e Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  RSA67622  Adiantum aleuticum P. A. Munz 1951-7-15 16547 Humboldt Racoon Creek. 305 Comment
  RSA687733  Adiantum aleuticum Anstruther Davidson 1923-10-8 17061 Humboldt Near Bridgeville Comment
  CAS-BOT-BC202606  Aesculus californica Doris K. Kildale 1928-6-29 5056 Humboldt Chalk Mountain Comment
  OBI37796  Aesculus californica David J. Keil 1983-7-1 17276 Humboldt 2.5 mi NE of Honeydew along Bull Crk Flats rd Comment
  UC26061  Agastache urticifolia J. Burtt Davy 1899-6-12 Humboldt Elk Prairie; North Coast Ranges, Elk Prairie Comment
  HSC57452  Ageratina occidentalis G. L. Clifton, Griswold 1979-7-26 10272 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  CAS-BOT-BC30383  Ageratina occidentalis Henry M. Pollard 1947-8-21 s.n. Humboldt South River Road between Orleans and Ferrian Ranch Comment
  UC76600  Ageratina occidentalis Mrs. M. H. Manning Jun 1 1900-Jul 1 1900 Humboldt near Hupa; Bold Hill Comment
  UC1222926  Agoseris aurantiaca var. aurantiaca Joseph P. Tracy 1949-8-7 18441 Humboldt Trinity Summit, meadow at Box Camp. 1463 Comment
  UC582753  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1934-7-4 13298 Humboldt at crossing of the Kneeland Road Lawerence Creek 457 Comment
  UC1222929  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-31 19227 Humboldt 1 mi n, road crosses sides of the Friday Ridge Friday's Camp; Grouse Mountain Comment
  UC187290  Agrostis J. P. Tracy 1900-8-26 926 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC127456  Agrostis densiflora Joseph P. Tracy 1927-6-26 8216 Humboldt Stone Lagoon. 6 Comment
  UC1145066  Agrostis densiflora Joseph P. Tracy 1938-8-28 16136 Humboldt clay bluff facing ocean Stone Lagoon 6 Comment
  HSC98510  Agrostis exarata Cara Witte 2008-8-6 1005 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  RSA10026  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Three Cabins; Chaparral Mountain Comment
  RSA25802  Agrostis exarata C. B. Wolf 1941-7-28 4344 Humboldt Big Lagoon, south side and W. of Redwood Highway. 6 Comment
  UC176586  Agrostis exarata J. P. Tracy 1900-9-2 933 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC58752  Agrostis gigantea Overton, Butler 1979-7-24 9620 Humboldt Near Titlow Hill, close to the town of Willow Creek. 381 Comment
  UCD52675  Agrostis hallii P. B. Kennedy 1923-6-14 305 Humboldt Stoddard store, near Garberville. Comment
  HSC8803  Agrostis microphylla D. E. Anderson 1963-10-6 2883 Humboldt Mad River bars, across from Essex Junction. Comment
  CAS-BOT-BC139132  Agrostis oregonensis Joseph P. Tracy 1934-7-18 13452 Humboldt North Coast Ranges. Grouse Mountain. 1524 Comment
  HSC8781  Agrostis pallens J. A. Waller 1965-5-16 44 Humboldt Open field near Big Lagoon Comment
  POM126118  Agrostis pallens Joseph P. Tracy 1900-7-4 876 Humboldt Ocean Beach at Samoa. Comment
  POM207333  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
  RSA10023  Agrostis variabilis Joseph P. Tracy 1930-7-19 8948 Humboldt South Fork Mountain; along summit near Blake lookout. 1738 Comment
  UC526890  Agrostis viridis Joseph P. Tracy 1926-7-4 7697 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC38924  Aira caryophyllea Linda M. Barker 1976-5-13 1475 Humboldt 3 mi. W of Arcata Comment
  HSC79472  Aira caryophyllea Kenneth Clark 1980-5-10 638 Humboldt Shelter Cove, along access to Dead Man's Gulch 107 Comment
  CAS-BOT-BC138195  Aira praecox Joseph P. Tracy 1925-5-24 7013 Humboldt Northern Coast Ranges. Eureka. 60 Comment
  UC194898  Alisma plantago-aquatica Joseph P. Tracy 1916-6-19 4724 Humboldt Dobbyn Creek Northern Coast Ranges 182 Comment
  SBBG88771  Alisma triviale A. Keedy 1988-9-18 9 Humboldt fresh water pond A, Arcata Salt Marsh Project, Humboldt Bay Comment
  CAS-BOT-BC460748  Allium amplectens C. C. Harris; S. K. Harris 1936-6-24 645 Humboldt At point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River. 701 Comment
  CAS-BOT-BC460753  Allium amplectens Volney Rattan 1903-1-1 s.n. Humboldt Kneeland Prairie Comment
  CAS-BOT-BC460754  Allium amplectens Carl B. Wolf 1937-6-14 8810 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  CAS-BOT-BC462973  Allium bolanderi Harley P. Chandler 1901-6-1 1434 Humboldt Klamath River, North Coast Ranges 243 Comment
  CAS-BOT-BC462974  Allium bolanderi L. R. Abrams 1918-6-15 7115 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  HSC78654  Allium campanulatum D. K. Imper 1982-7-2 1490 Humboldt Near Connely Creek, N Fork 1493 Comment
  HSC57406  Allium falcifolium G. L. Clifton, Griswold 1979-7-26 10158 Humboldt Near Salmon Mtn. 2058 Comment
  HSC2936  Allium falcifolium D. E. Anderson 1965-6-1 3762 Humboldt Horse Mtn. 1433 Comment
  RSA46682  Allium falcifolium Doris K. Kildale 1937-7-18 15132 Humboldt Horse Mt. Comment
  HSC71825  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5956 Humboldt Saddle between Mt. Lassic and peak to E 1677 Comment
  HSC76440  Allium siskiyouense Denis Kearns 1981-6-24 27 Humboldt Near Cedar Camp 1219 Comment
  CAS-BOT-BC476627  Allium unifolium Carl B. Wolf 1937-8-11 8900 Humboldt Fleener Creek, 1/2 mi. so. of Centerville. 45 Comment
  UC1224691  Allotropa virgata D. E. Anderson 1963-5-18 2447 Humboldt about 1 mi nw of Burnt Ranch School Comment
  CAS-BOT-BC171311  Alnus incana subsp. tenuifolia Milo S. Baker 1927-8-21 2487 a Humboldt Brush Mt. 914 Comment
  SBBG1284  Alnus incana subsp. tenuifolia H. and M. Dearing 1939-6-23 3691 Humboldt E fork of Willow Crk Comment
  HSC3394  Alnus rubra J. W. Johnson 1961-9-4 1088 Humboldt Along Lanphere Lane near the swamp, Samoa Peninsula Comment
  HSC81811  Alnus rubra Kenneth Clark 1980-6-14 692 Humboldt N Fork of Dead Man's Gulch; throughout Shelter Cove 61 Comment
  UC526745  Alopecurus geniculatus Joseph P. Tracy 1926-6-12 7589 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  UCD55896  Alopecurus geniculatus Joseph P. Tracy 1917-6-17 4816 Humboldt in Salmon Creek Valley, at south end of Humboldt Bay. 15 Comment
  UC1152032  Alopecurus saccatus Joseph P. Tracy 1951-6-21 19525 Humboldt back of Everett Beck house (formerly George Gray) Hydesville (bed of former Goose Lake) Comment
  CHSC10149  Ambrosia chamissonis J. W. Johnson 1961-8-17 1022 Humboldt W. M. Lanphere Farm, Samoa Peninsula. Comment
  HSC35628  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2141 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  UC166090  Ambrosia chamissonis J. P. Tracy 1901-8-7 1265 Humboldt at, opposite Eureka Samoa; Ocean Beach Comment
  UCD128769  Ambrosia chamissonis Linda M. Barker 1976-8-2 1674 Humboldt 3 miles west of Arcata. Comment
  UC1541640  Ambrosia chamissonis Harold E. Parks 1941-8-1 24181 Humboldt Big Lagoon Causeway Comment
  HSC39521  Amelanchier alnifolia var. semiintegrifolia Thomas W. Nelson, James Nelson 1976-6-10 2664 Humboldt Ridge W of Senteney Rock 1555 Comment
  HSC48400  Amelanchier alnifolia var. semiintegrifolia Brad Klipfel 1973-6-10 87 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SDSU19194  Amelanchier alnifolia var. semiintegrifolia Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3011 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.3 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1426 Comment
  CAS-BOT-BC143015  Amelanchier utahensis Joseph P. Tracy 1946-7-13 17618 Humboldt Carlotta, open flat by old Strong's District School House, 5 miles east of town. 60 Comment
  SD41378  Ammophila arenaria Edith A. Purer 1932-7-27 4157 Humboldt Samoa, sand dunes. Comment
  SACT000320  Ammophila arenaria D. Shillingbury 1963-5-11 Humboldt Coastal strand Comment
  UC1198611  Anagallis arvensis Joseph P. Tracy 1921-7-10 5850 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  SBBG19484  Anaphalis margaritacea J. A. Lowery -Aug-1962 27 Humboldt Willow Crk, ca. 30 mi E of Eureka 457 Comment
  SBBG44954  Anaphalis margaritacea C. B. Wolf 1927-8-30 Humboldt 2 mi S of Petrolia on Mattole River, near where road crosses river Comment
  UC963845  Anaphalis margaritacea H. E. Parks and S. T. Parks 1943-8-1 24237 Humboldt along highway Stone Lagoon Comment
  RSA416575  Anaphalis margaritacea C. B. Wolf 1937-8-13 9213 Humboldt North Coast Range, 9 miles NE of Blue Lake on Lord Ellis Road. 244 Comment
  JEPS79808  Anemone deltoidea Joseph P. Tracy Jul 16 1930-Jul 19 1930 8964 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CHSC110736  Anemone grayi Dean Wm. Taylor 2011-5-4 21116 Humboldt Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junction with Highway 36 737 Comment
  CAS-BOT-BC391925  Anemone lyallii Doris Kildale 1931-5-10 10576 Humboldt Snow Camp Comment
  UC562610  Angelica arguta Joseph P. Tracy 1932-7-12 10443 Humboldt Trinity Summit, at Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC673052  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka, near south city limits Eureka 6 Comment
  UCD127226  Angelica hendersonii Joseph DiTomaso 1980-6-29 1634 Humboldt north side of Elkshead. 2 miles north of Trinidad. Comment
  UCD127229  Angelica hendersonii R. Tofsrud 1948-7-26 s.n. Humboldt along Highway 101 near Big Lagoon. Comment
  HSC21452  Angelica lucida Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC39723  Angelica tomentosa Thomas W. Nelson 1976-10-25 3276 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC98705  Angelica tomentosa Cara Witte 2007-7-26 600 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1366 Comment
  UC1197369  Angelica tomentosa Joseph P. Tracy 1924-8-9 6793 Humboldt Northern Coast Ranges, Carlotta Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  UCD127179  Angelica tomentosa Joseph DiTomaso 1980-8-15 1864 Humboldt 5 miles west of Willow Creek at 34.4 mile road mark on Highway 299. Comment
  HSC32840  Anisocarpus madioides Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC76418  Anisocarpus madioides Denis Kearns 1981-7-8 161 Humboldt Near Bluff Creek 622 Comment
  UC89528  Anisocarpus madioides Harley P. Chandler June, 1901 1313 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC41274  Antennaria suffrutescens Brad Klipfel 1974-6-25 426 Humboldt Horse Mtn. Comment
  HSC90322  Anthoxanthum occidentale C. Wilson, P. Kittelson, M. Hardig 1992-5-2 61 Humboldt 50 m up dirt road E of Redwood Science Lab. 61 Comment
  HSC90402  Anthoxanthum occidentale Michele Lewis, Lisa Sims, Roger Cook 1992-5-12 49 Humboldt Behind the Redwood Science Lab, down gated fire access road 50 m, 10 m to right of trail. Comment
  HSC33768  Anthoxanthum odoratum Lon Hall 1975-5-24 377 Humboldt Samoa Dunes, off Samoa Blvd., across from the boat landing Comment
  HSC38344  Anthoxanthum odoratum Peter Sorensen 1976-6-2 Humboldt North Spit Comment
  HSC8934  Anthoxanthum odoratum H. E. Parks, S. T. Parks Apr 1952 24444 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC100657  Antirrhinum breweri Carl C. Marshall Jun 1887 490 Humboldt Harris's Ranch. Comment
  JEPS5353  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1933-8-30 13004 Humboldt Horse Mountain; Northern Coast Ranges 1066 Comment
  HSC77514  Aphanes occidentalis K. Berg 1984-4-8 525 Humboldt South spit of Humboldt Bay, 1.4 mi. S of South Jetty, E of road Comment
  HSC57660  Apocynum androsaemifolium G. L. Clifton, Griswold 1979-7-25 10835 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC58102  Apocynum androsaemifolium G. L. Clifton, Griswold 1979-8-1 12033 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC31632  Aquilegia formosa var. formosa Glenn McGourty 1974-4-27 18 Humboldt 1 mi. from Capetown Bridge Comment
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May 26 2016
  HSC64310  Aquilegia formosa var. formosa J. P. Smith 1973-5-26 6866 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC40232  Arabidopsis thaliana J. P. Smith, J. O. Sawyer 1976-5-2 8626 Humboldt 3.96 mi. N of junction with Hwy. 299 on Hwy. 96 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
  HSC70689  Arabis breweri var. breweri Gail Newton 1980-7-15 1568 Humboldt Near Sims Mtn. 1311 Comment
  HSC103965  Arabis breweri var. breweri A. Thoele, Sydney Carothers 1995-7-13 39 Humboldt Six Rivers National Forest; Potato Hill, NE side of Pilot Creek. Take SR1 to jct. with 3N14, walk NW 1.4 mi., then SW 1/3 mi. down ridge 1498 Comment
  HSC75964  Arabis glabra Walter Overton, Butler 1979-8-2 12585 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  HSC74547  Arabis platysperma M. A. Baker 1980-7-24 3211 Humboldt Near Orleans Mtn. 1625 Comment
  RSA249429  Arabis sparsiflora var. subvillosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5595 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  RSA96051  Aralia californica E. K. Balls 1954-8-5 19754 Humboldt Grown in Botanic Garden, Prop. No. 5123, origin of material being plants coll. by C. B. Wolf, March 2, 1941, North Coast Range, Bull Creek to Petrolia Rd., 12 mi. w. of Redwood Hwy Comment
  UC1196881  Arbutus menziesii Joseph P. Tracy 1923-3-17 6164 Humboldt Garberville; Northern Coast Ranges, Garberville 121 Comment
  JEPS44156  Arctium minus W. L. Jepson 1936-8-12 17888 Humboldt Philipsville South Fork Eel River Comment
  UC1222872  Arctium minus Joseph P. Tracy 1950-9-2 19351 Humboldt at, 3 mi s of Field's Landing Beatrice Comment
  JEPS38977  Arctostaphylos canescens Joseph P. Tracy 1935-7-14 14064 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC24092  Arctostaphylos canescens subsp. canescens L. R. Abrams 1918-6-15 7112 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC23748  Arctostaphylos columbiana Walter Knight; Irja Knight 1988-9-5 6363 Humboldt Bald Hill Road about 21.5 miles from U.S. 101 en route to Hoopa. 929 Comment
  CAS-BOT-BC23755  Arctostaphylos columbiana Alice Eastwood; John Thomas Howell 1934-4-11 1328 Humboldt Patrick's Point Comment
  CAS-BOT-BC23763  Arctostaphylos columbiana H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's Point Comment
  CAS-BOT-BC23786  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt Vicinity of Trinidad 60 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
  CAS-BOT-BC23794  Arctostaphylos columbiana C. Hart Merriam 1920-9-18 s.n. Humboldt Berry Mt. between Trinity River and Redwood Creek Comment
  CAS-BOT-BC23823  Arctostaphylos columbiana Carl B. Wolf 1927-8-30 1241 Humboldt Paradise, 5 or 6 mi. no. of Ettersburg. Comment
  HSC7615  Arctostaphylos columbiana J. Pursell 1964-10-18 10183 Humboldt 1/4 mi. from Hwy. 299 on Bald Mtn. Rd. Comment
  JEPS19870 Image available Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6141 Humboldt Big Lagoon Northern Coast Region; Big Lagoon, Humboldt Co. 6 Comment
  JEPS38618  Arctostaphylos columbiana W. L. Jepson 1902-6-29 1953 Humboldt Redwood Creek Comment
  JEPS38961  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13151 Humboldt French Camp Ridge 1066 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
  RSA1899  Arctostaphylos columbiana var. columbiana C. B. Wolf 1930-10-29 1784 Humboldt Old Coast Rd. 7 mi S of Honeydew Post Office. 305 Comment
  RSA632806  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27793 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  RSA632809  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27763 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  UC32687  Arctostaphylos manzanita subsp. manzanita Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC55162  Arctostaphylos nevadensis Gilbert Muth 1979-8-1 12136 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1196871  Arctostaphylos nevadensis Joseph P. Tracy 1911-7-7 3425 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  CAS-BOT-BC40072  Arctostaphylos nevadensis subsp. knightii C. Hart Merriam 1918-9-24 s.n. Humboldt Between Redwood and klamath canyons, Bald Hills. Comment
  CAS-BOT-BC46632  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8136 Humboldt Horse Mountain. 1432 Comment
  CAS-BOT-BC46637  Arctostaphylos patula J. H. Thomas 1949-6-13 920 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (E. of town of Orleans). 1676 Comment
  HSC55118  Arctostaphylos patula Gilbert Muth 1979-8-1 11896 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC585959  Arctostaphylos patula Joseph P. Tracy 1935-7-14 14063 Humboldt Horse Mountain 1432 Comment
  UCD53433  Arctostaphylos patula A. E. Wieslander 1931-5-19 199 Humboldt Near Orleans. Comment
  HSC100470  Arctostaphylos tomentosa Carl C. Marshall Apr 1887 382 Humboldt Hoopa Valley. Comment
  RSA122503  Arctostaphylos uva-ursi H. S. Yates 1936-6-16 5661 Humboldt 1 mile S.W. of Samoa. Comment
  SBBG54023  Arctostaphylos uva-ursi R. S. Woglum 1938-8-29 2020 Humboldt seashore, Samoa Comment
  RSA741641  Arctostaphylos uva-ursi var. coactilis Patricia Wilder 1968-8-21 4409 Humboldt Northern coastal arm of Humboldt Bay, ca. 1 mile SW of Samoa, in sand dunes. 15 Comment
  SEINET11987137  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3993 Humboldt Tilden Botanic Garden, Berkeley, orig. from Table Bluffs near Eureka Comment
  SEINET11987223  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3934 Humboldt Tilden Botanic Garden, Berkeley, orig. from S end of sand spit at Samoa Comment
  HSC73157  Arctostaphylos viscida M. A. Baker 1980-5-18 1296 Humboldt Near Black Mtn. 1006 Comment
  CDA18206  Armeria maritima subsp. californica G. D. Barbe, T. C. Fuller 1974-6-17 1832 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  HSC69625  Armeria maritima subsp. californica R. Kalal 1979-5-29 34 Humboldt Along Samoa Blvd. 3 Comment
  CHSC30147  Arnica discoidea M. S. Taylor 1980-6-11 2842 Humboldt Gray Falls Campground, Six Rivers NF, on S side of 6N5b to footbridge, on N side of Hwy 299, ca. 2 mi NW of Burnt Ranch. 274 Comment
  HSC99480  Arnica discoidea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 139 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
  UC1199252  Arnica discoidea Joseph P. Tracy 1918-7-5 5001 Humboldt White Thorn Valley 304 Comment
  HSC48988  Arnica discoidea M. A. Baker 1979-5-25 763 Humboldt Comment
  UC129438  Arnica latifolia Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5754 Humboldt Trinity Summit Comment
  UC582489  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt near Corral Prairie ((Trinity Summit)); Trinity Summit 1524 Comment
  RSA167206  Arnica latifolia Joseph P. Tracy 1942-6-23 17236 Humboldt Near Box Camp 1463 Comment
  HSC8991  Arrhenatherum elatius D. J. McVean 1965-5-18 77 Humboldt Old Arcata Rd., S of intersection with Indianola Rd. Comment
  HSC12593  Artemisia douglasiana C. Kline 1970-11-15 72 Humboldt Clam Beach Lagoon Comment
  CAS-BOT-BC93858  Artemisia dracunculus Hubert Jenkins 1943-8-1 s.n. Humboldt Near edge of Eel River in sand. Richardson Grove Comment
  IRVC497  Artemisia pycnocephala John Johnson 1961-9-4 1098 Humboldt Arcata; Christenson Farm. Comment
  UC154045  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region, Humboldt Bay Region 0 Comment
  UC154231  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region, Humboldt Bay Region 0 Comment
  RSA46846  Aruncus sylvester Doris K. Kildale 1927-7-3 3663 Humboldt Willow Creek Flat. Comment
  HSC100257  Arundo donax J. P. Smith 2009-8-3 12642 Humboldt Along Hwy. 254 in Pepperwood. 51 Comment
  CHSC111  Asarum caudatum 1952-7-7 Humboldt Coastal. Comment
  HSC98560  Asarum caudatum Cara Witte 2008-6-13 727 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  RSA183561  Asarum caudatum R. D. Zortman 1963-4-14 18 Humboldt 5 miles NE of Arcata, south of the Mad River, off Warren Ck. Rd. 91 Comment
  CAS-BOT-BC400536  Asarum caudatum H. E. Parks 1931-3-24 0918 Humboldt Near Orick Comment
  POM279301  Asarum caudatum Lyman Benson 1928-7-12 s.n. Humboldt Weott Ranger Station. Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  RSA261553  Asarum caudatum Suzanne May 1967-4-15 21 Humboldt On Kneeland Road, 5 miles east of Bridgeville 244 Comment
  UCSB26616  Asarum caudatum Havlik, Neil 1968-8-20 Humboldt On the Ferndale-Capetown Road, about 5 miles from Ferndale 457 Comment
  HSC100704  Asarum hartwegii Carl C. Marshall Apr 1887 389 Humboldt Hoopa Valley, rear of Captain's quarters. Comment
  HSC103116  Asarum hartwegii M. Mesler 2010-9-4 840 Humboldt Along trail E603 (Salmon Summit traihead to Red Cap Lake), about 100 m SE of Baylor Camp. 1677 Comment
  CDA42726  Aspidotis densa Gordon Leppig 1998-7-1 861 Humboldt Horse Mountain, Ammon Ridge Road 1 kilometer east of Titlow Hill Road. Comment
  RSA417697  Aster occidentalis Thomas W. Nelson, Jane Nelson 1977-9-3 3726 Humboldt Along Creek draining, north from pond above Alder Spring. 1585 Comment
  HSC95164  Astragalus agnicidus Gordon Leppig 2003-7-10 2002 Humboldt Pacific Lumber Co. land 730 Comment
  RSA475237  Astragalus rattanii var. rattanii Aaron Liston, Sara Meury 1988-5-29 746 -1 Humboldt Grizzly Creek Redwoods State Park; banks of Van Duzen River. 150 Comment
  UC175639  Astragalus rattanii var. rattanii Joseph P. Tracy 1913-5-4 4051 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1199093  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  UC201702  Astragalus umbraticus Volney Rattan 1883-6-27 Humboldt between Three Creeks and Redwood Creek (on the divide); betw Three Creeks and Redwood Creek, on the divide Comment
  RSA246930  Athyrium filix-femina subsp. cyclosorum R. F. Thorne, Percy C. Everett 1965-8-9 35292 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC69453  Athyrium filix-femina subsp. cyclosorum Carl B. Wolf 1939-7-6 9516 Humboldt Along Larabee Creek, 6 7/10 mi. below Blocksburg on road to Bridgeville. 304 Comment
  RSA44514  Athyrium filix-femina subsp. cyclosorum Henry M. Pollard 1947-8-28 s.n. Humboldt Perch Creek Canyon, Mount Orleans Comment
  SDSU1603  Athyrium filix-femina var. cyclosorum D. R. Harvey 1938-8-13 2252 Humboldt Redwood Park. Comment
  UC370619  Athyrium filix-femina var. cyclosorum H. E. Parks June, 1925 3234 Humboldt Orick Comment
  HSC32331  Athysanus pusillus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5671 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  UC146161  Atriplex gmelinii var. gmelinii Joseph P. Tracy 1905-10-1 2393 Humboldt edge of Humboldt Bay at mouth Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, mouth Eel River 0 Comment
  SEINET200927  Avena fatua J. P. Tracy 1916-5-31 4703 Humboldt Stitz Creek. Along Eel River between SOuth Fork and Scotia 61 Comment
  SEINET10938126  Baccharis Mary Susan Taylor 1990-8-22 Taylor 6075 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  POM41974  Baccharis pilularis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA134603  Baccharis pilularis Percy C. Everett, E. K. Balls 1959-10-25 23968 Humboldt 1.5 miles from Ferndale on Old Coast Road to Capetown Comment
  RSA43689  Baccharis pilularis H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  RSA607468  Baccharis pilularis R. S. Woglum 1938-8-29 2029 Humboldt North Coast: Trinidad. Comment
  UC1199296  Baccharis pilularis Joseph P. Tracy 1933-10-15 13099 Humboldt Miranda South Fork of Eel River 121 Comment
  HSC100425  Baccharis pilularis Carl C. Marshall Feb 1887 391 Humboldt Hillsides near the coast. Comment
  HSC12350  Baccharis pilularis subsp. consanguinea Steve Dorei 1970-10-31 139 Humboldt Scotia Bluff area Comment
  HSC68262  Baccharis pilularis subsp. consanguinea J. P. Smith 1971-10-6 4963 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC89512  Barbarea verna M. Roantree 1985-4-25 8 Humboldt E side of Trinidad Head. Comment
  CDA6267  Bellardia trixago T. R. Haig 1960-6-15 4575 Humboldt 8 miles north of Trinidad. 0 Comment
  HSC5191  Bellis perennis W. K. Parks Jun 1932 1187 Humboldt Trinidad Comment
  UC127824  Bellis perennis Harley P. Chandler May 1901 1128 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC32388  Bellis perennis Linda M. Barker 1974-5-11 180 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC89490  Bellis perennis P. A. Daly 1986-2-28 64 Humboldt Trinidad Head, along trail 61 Comment
  CAS-BOT-BC48160  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3416 Humboldt Bald Mountain ridge - Under forest at edge of Snow Camp Meadow, near base of Snow Camp Mt., at head of high long ridge 1432 Comment
  UC1198850  Bensoniella oregona Mrs. R. D. Douglas 1920-6-26 Humboldt Murphy Meadow; on Bald Mt., Murphy Meadow 1066 Comment
  UC552297  Berberis aquifolium Joseph P. Tracy 1934-7-6 13660 Humboldt at crossing of the Kneeland Rd Lawrence Creek 457 Comment
  CAS-BOT-BC75678  Berberis nervosa Doris K. Kildale 1926-11-25 2827 Humboldt Lord-Ellis road. Comment
  HSC92017  Berberis nervosa E. Mackey 1986-10-24 Humboldt Patrick's Point State Park Comment
  UC1198381  Berberis nervosa Joseph P. Tracy 1926-6-13 7597 Humboldt Liscom Hill road near Blue Lake 152 Comment
  HSC48749  Bistorta bistortoides Brad Klipfel 1973-6-10 75 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC64434  Bistorta bistortoides J. P. Smith, Steve Selva 1970-6-30 4119 Humboldt Comment
  UC552303  Boechera subpinnatifida Joseph P. Tracy 1933-7-25 12878 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UCR138660  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1999-10-25 1268 Humboldt State Hwy 101, mile marker 61.40 2 Comment
  HSC56238  Boykinia major Walter Overton 1979-8-1 12327 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  RSA466744  Boykinia major Anstruther Davidson 1918-07 3340 Humboldt Eel River. Comment
  CAS-BOT-BC420277  Boykinia occidentalis J. P. Tracy 1901-6-30 1210 Humboldt Immediate vicinity of Eureka Comment
  RSA109288  Boykinia occidentalis H. E. Parks, Susan T. Parks 1952-06 24451 Humboldt Spruce Cove, Trinidad. 61 Comment
  SDSU9503  Boykinia occidentalis Harvey 1938-8-13 2263 Humboldt Near Arcata. 85 Comment
  CAS-BOT-BC420274  Boykinia occidentalis Milo S. Baker 1923-9-19 84 Humboldt Canon near Carlotta Comment
  RSA12452  Boykinia occidentalis Carl B. Wolf 1934-6-30 5841 Humboldt 4 miles from Shelter Cove on rd to Briceland. 152 Comment
  UC726691  Boykinia occidentalis A. A. Heller 1937-6-12 15890 Humboldt 3 mi n Trinidad (at Bishop Pine Lodge); n of Trinidad Comment
  CAS-BOT-BC106288  Brickellia californica Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC106289  Brickellia californica E. G. Johnston 1931-8-1 s.n. Humboldt Myers, S. Fork Eel River Comment
  POM248380  Brickellia californica S. K. Harris, C. M. Wilder 1938-9-8 877 Humboldt Bars on Van Duzen River, below Blue Slide Comment
  RSA47155  Brickellia californica Doris K. Kildale 1926-8-29 2593 Humboldt Van Duzen River at Strong's Station Comment
  UC1199317  Brickellia californica Joseph P. Tracy 1922-10-8 6119 Humboldt near Blue Lake (Mad River gravel bar, Northern Coast Ranges); Northern Coast Ranges, Mad River 15 Comment
  RSA614433  Briza maxima K. L. Chambers 1993-5-5 5717 Humboldt Hwy. 101, where it meets the ocean just south of Orick. Comment
  SBBG122948  Briza maxima D. Wilken with E. Painter 2007-6-4 16739 Humboldt Samoa Dunes, ca. 0.4 km W of US Coast Guard Station, North Spit, Humboldt Bay 5 Comment
  SEINET10468010  Briza maxima Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2503 Humboldt Collected in the vicinity of a state park on the beach opposite McKinleyville. Vast colony of yellow Lupinus arboreus. 3 Comment
  HSC24375  Brodiaea elegans subsp. elegans J. O. Sawyer 1970-6-24 2245 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  CAS-BOT-BC484217  Brodiaea elegans subsp. elegans Doris K. Kildale 1926-6-27 2209 Humboldt Larabee Valley 701 Comment
  HSC23716  Brodiaea elegans subsp. elegans Tim Baroni 1971-6-25 36 Humboldt 8 mi. E of Petrolia Comment
  UC1222693  Brodiaea elegans subsp. elegans Joseph P. Tracy 1950-6-23 18867 Humboldt 3 mi ne Alderpoint (at creek); Dobbyn Creek 213 Comment
  BLMAR191  Brodiaea terrestris subsp. terrestris Donald Hazlett 1994-6-7 191 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1197740  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1928-5-20 8441 Humboldt halfway between the ocean and Petrolia; Northern Coast Ranges, Mattole Valley 91 Comment
  RSA10079  Bromus carinatus Joseph P. Tracy 1926-5-2 7424 Humboldt Trinity River Valley, near the south fork. Comment
  RSA259587  Bromus carinatus D. E. Anderson, J. P. Smith 1971-6-28 1971 Humboldt ca. 2.5 mi. south of Blue Lake along the Mad River. Comment
  UC212859  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-31 5333 Humboldt Northern Coast Region, Carlotta, along Yager Creek Carlotta; Northern Coast Region, , Yager Creek 30 Comment
  UC1103360  Bromus commutatus Joseph P. Tracy 12621 Humboldt 2 to 5 mi e of the South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  CAS-BOT-BC155993  Bromus diandrus Doris K. Kildale 1926-5-2 1902 a Humboldt Willows Creek Flat. 152 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
  HSC89518  Bromus hordeaceus M. Roantree 1985-6-11 92 Humboldt E side of Trinidad Head Comment
  HSC9243  Bromus hordeaceus B. D. Rogers 1964-4-4 21 Humboldt Arcata, HSU campus Comment
  SEINET200662 Image available Bromus hordeaceus subsp. hordeaceus Joseph P. Tracy 1923-6-20 6327 Humboldt Chamise Mountain near Shelter Cove 305 Comment
  CAS-BOT-BC162446  Bromus laevipes L. R. Abrams 1918-6-16 7143 Humboldt Willow Creek. Comment
  HSC74126  Bromus madritensis subsp. madritensis R. York 1980-5-23 628 Humboldt Near Buck Mtn. 1524 Comment
  CAS-BOT-BC161605  Bromus sterilis Joseph P. Tracy 1933-6-13 12601 Humboldt North Coast Ranges. Bair's Ranch on Redwood Creek. 914 Comment
  HSC71601  Bromus tectorum M. A. Baker 1980-6-26 2414 Humboldt Near Sims Creek 610 Comment
  SEINET200634 Image available Bromus tectorum Joseph P. Tracy 1931-5-3 9349 Humboldt Along Mad River near Blue Lake. 15 Comment
  CAS-BOT-BC185521  Bromus vulgaris Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain Trail. 1371 Comment
  HSC58758  Bromus vulgaris Overton, Butler 1979-7-26 9932 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  UC167232  Bromus vulgaris Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5363 Humboldt near Harris (North Coast Ranges); North Coast Ranges Comment
  UC176583  Bromus vulgaris J. P. Tracy 1900-5-28 807 Humboldt immediate vicinity of Eureka 0 Comment
  HSC31340  Cakile maritima Larry E. DeBuhr, G. Wallace 1972-5-22 608 Humboldt Prairie Creek Redwoods State Park Comment
  UC1146622  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1737 Humboldt Rock in Mattole River Comment
  CAS-BOT-BC185236  Calamagrostis koelerioides Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mountain. 1828 Comment
  HSC58535  Calamagrostis koelerioides Overton, Butler 1979-7-23 9442 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  SBBG83771  Calamagrostis koelerioides J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  UC511547  Calamagrostis nutkaensis Ira L. Wiggins 1932-7-25 5898 Humboldt roadsides near McKinleyville Comment
  UC176676  Calandrinia ciliata Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3580 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC104058  Calandrinia ciliata M. F. Norman 2015-4-11 16 Humboldt Arcata, Ma-le'l Dunes Comment
  UC1922745  Callitriche heterophylla subsp. bolanderi Robert F. Thorne, P. Everett 1965-8-9 35323 Humboldt CLAM BEACH COUNTY PARK: along highway. Comment
  UC1103693  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1936-8-17 15150 Humboldt 2.5 mi s Field's Landing (near Still Ranch) 6 Comment
  UC144094  Callitriche marginata J. P. Tracy 1909-5-23 2975 Humboldt At the Connick Claim, 4 mi SE of Eureka 0 Comment
  HSC3806  Callitriche trochlearis D. E. Anderson 1965-6-1 3783 Humboldt Small pond along road to Brush Mtn., 0.25 mi. from Hwy. 299 Comment
  CAS-BOT-BC80384  Calocedrus decurrens G. A. Coleman 1901-7-24 s.n. Humboldt Head of Supply Creek, Hoopa Indian Reservation Comment
  RSA46654  Calocedrus decurrens Doris K. Kildale 1937-9-14 15359 Humboldt Grouse Mountain Comment
  CAS-BOT-BC488455  Calochortus amabilis Doris K. Kildale 1926-5-16 2004 Humboldt Miranda on south fork of Eel River. Comment
  SEINET12051376  Calochortus coeruleus F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -315 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Road (USFS Rd. 411) 150 Comment
  HSC102535  Calochortus tolmiei M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1521 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC15385  Calochortus tolmiei D. E. Anderson 1965-5-1 3559 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC97482  Calochortus tolmiei Cara Witte 2007-5-8 11 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  JEPS17823  Calochortus tolmiei Joseph P. Tracy 1927-5-8 7960 Humboldt Philipsville Phillipsville 121 Comment
  UC3435  Calochortus tolmiei H. N. Bolander 1867-1 6555 Humboldt Red Mts. Comment
  JEPS39006  Calycadenia truncata J. P. Tracy 1911-7-5 3334 Humboldt Willow Creek Trinity River, Willow Creek 152 Comment
  UC275535  Calypso bulbosa Joseph P. Tracy 1924-3-30 6631 Humboldt near Bridgeville (Northern Coast Ranges); Northern Coast Ranges 182 Comment
  HSC65202  Calypso bulbosa T. Jimerson, J. Pageau 1979-5-1 446 Humboldt On FS 6N34C, Orleans Ranger District, Orleans Comment
  UCD138886  Calypso bulbosa var. occidentalis Linda M. Barker 1976-3-22 1347 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  UCD138889  Calypso bulbosa var. occidentalis R. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  UC673024  Calyptridium umbellatum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8946 Humboldt summit near Blake Lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC154167  Calystegia occidentalis subsp. occidentalis Harley P. Chandler June, 1901 1343 Humboldt Hupa Indian Reservation , Hupa Indian Reservation (North Coast Ranges) 152 Comment
  UC176994  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1912-8-3 3974 Humboldt Valley Van Duzen River (opposite Buck Mountain, Northern Coast Ranges); Northern Coast Ranges, Valley of Van Duzen River, Buck Mount 762 Comment
  UC1225830  Camassia quamash Joseph P. Tracy 1947-5-3 17686 Humboldt Kneeland Prairie 762 Comment
  HSC16437  Camissonia cheiranthifolia J. W. Johnson 1961-9-4 1104 Humboldt Christenson Farm, Samoa Peninsula, Arcata. Comment
  HSC16446  Camissonia cheiranthifolia L. H. Myers 1963-5-13 18 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  CAS-BOT-BC160240  Camissoniopsis cheiranthifolia subsp. cheiranthifolia C. C. Harris; S. K. Harris; Clarence Crane, Jr. 1939-8-23 s.n. Humboldt On beach-sand at Samoa Comment
  CAS-BOT-BC160245  Camissoniopsis cheiranthifolia subsp. cheiranthifolia D. E. Breedlove 1962-6-7 3036 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UC665629  Camissoniopsis cheiranthifolia subsp. cheiranthifolia H. E. Parks August, 1941 24180 Humboldt sand dunes Little River State Park Comment
  JEPS11741  Campanula prenanthoides W. L. Jepson 1932-7-26 16413 Humboldt Bull Creek Comment
  UC179967  Campanula prenanthoides Joseph P. Tracy 1914-9-6 4623 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC416596  Campanula prenanthoides P. E. Goddard 1906-6 686 Humboldt Blocksburg Comment
  POM284844  Campanula prenanthoides Lyman Benson 1928-7-9 380 Humboldt Weott Ranger Station. Seaward N coast. Watershed- South Fork Eel Rivers. 61 Comment
  SEINET10462895  Campanula prenanthoides Anderson 1962-7-17 Anderson 2273 Humboldt CAMP BAUER, CA. .25 MI E OF KORBEL ON N FORK MAD R. Comment
  SEINET10463014  Campanula prenanthoides Wolf 1937-8-13 WOLF 9215 Humboldt 8 MI E OF HOOPA VALEY ON RD TOWARDS TRINITY SUMMIT 4000 Comment
  SEINET10873257  Campanula prenanthoides Etienne 1972-9-4 Etienne s.n. Humboldt Lumber road to Klamath River, about 8 miles inland and 1 mile north of the Humboldt County line 30 Comment
  SEINET10905897  Campanula prenanthoides Rattan 1878-1 RATTAN s.n. Humboldt Humboldt County Comment
  SEINET10939028  Campanula prenanthoides Klipfel 1974-7-23 KLIPFEL 467 Humboldt Horse Mountain, at junction of a draw and the saddle of the ridge. T6N R4E Sec. 27 SW 1/4 Comment
  SEINET10972390  Campanula prenanthoides Tracy 1908-6-27 TRACY 2859 Humboldt Valley of Van Duzen River; opposite Buck Mountain, in woods. 762 Comment
  HSC74731  Campanula scouleri Gail Newton 1981-7-24 2300 Humboldt Near Chaparral Mtn. 1433 Comment
  SBBG7446  Campanula scouleri H. and M. Dearing 1939-6-27 3729 Humboldt near Dinsmore on Van Dusen River Comment
  SEINET10463757  Campanula scouleri Griswold 1979-7-11 GRISWOLD 6946 Humboldt Near Snow Camp Mountain, on the Iagua Buttes quadrangle, close to the town of Willow Creek 1320 Comment
  RSA46687  Campanula scouleri Doris K. Kildale 1937-7-18 15143 Humboldt Horse Mt. Comment
  SD61053  Campanula scouleri Darley F. Howe 1964-8-7 3944 Humboldt 8.2 miles from Highway 96 on Mill Creek Road; Hoopa Valley. 1064 Comment
  UC1222657  Capsella bursa-pastoris Joseph P. Tracy 1950-7-6 19005 Humboldt 2 mi s of Burr Valley (on the Albee Road); Albee Road 1158 Comment
  HSC6690  Cardamine californica D. E. Anderson 1962-3-17 1934 Humboldt 4 mi. S of Lone Star Ranch Comment
  LA204275  Cardamine californica Victor Duran; 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville Comment
  UC1536942  Cardamine californica Gordon H. True Jr. 1936-2-26 328 Humboldt e Pepperwood (along Eel River); , e of Pepperwood 91 Comment
  HSC98050  Cardamine californica var. integrifolia Cara Witte 2007-5-8 5 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  POM266034  Cardamine californica var. integrifolia Lincoln Constance, Reed C. Rollins 1942-5-20 2998 Humboldt Eel River 1 mile N of Pepperwood. 46 Comment
  RSA176497  Cardamine californica var. integrifolia Doris K. Kildale 1927-1-23 2974 Humboldt Van Duzen River at the Blue Shale. Comment
  RSA244996  Cardamine oligosperma H. S. Logsdon 1964-4-11 21 -a Humboldt 4.0 miles NE of Orick at Boyes Prairie. Comment
  SEINET10932251  Cardionema ramosissimum Mary Susan Taylor 1990-8-22 Taylor 6085 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  UC1225795  Cardionema ramosissimum Joseph P. Tracy 1947-7-3 17765 Humboldt at mouth of Little River 6 Comment
  RSA167248  Carduus tenuiflorus Joseph P. Tracy 1947-6-8 17703 Humboldt 0.5 mile west of town Comment
  UC303150  Carex aquatilis var. dives Joseph P. Tracy 1925-7-8 7172 Humboldt Bald Mountain, meadow near High Prairie Northern Coast Ranges 1066 Comment
  JEPS79833  Carex athrostachya Joseph P. Tracy 1935-7-23 14140 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC195346  Carex bolanderi Joseph P. Tracy 1916-6-25 4747 Humboldt e Trinidad; Northern Coast Ranges, Redwood Creek 152 Comment
  CAS-BOT-BC34276  Carex concinnoides Joseph Prince Tracy 1927-6-19 8190 Humboldt Northern Coast Range. Patrick's Point, in fern covered prairies on coast terraces. 60 Comment
  HSC103329  Carex densa Thomas W. Nelson, Jane Nelson 1982-7-11 7116 Humboldt Along road from Hindley's cabin on McKeown Ranch to Anderson's Ford at Mad River Comment
  UC1103122  Carex densa Joseph P. Tracy 1937-5-31 15325 Humboldt Trinity River Valley at Willow Creek 152 Comment
  JEPS80029  Carex densa Joseph P. Tracy 1925-5-30 7048 Humboldt McClellan Mountain Northern Coast Ranges, McClellan Mountain 822 Comment
  UC562273  Carex echinata Joseph P. Tracy Jul 16 1930-Jul 19 1930 8986 Humboldt in meadow at McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC96552  Carex echinata subsp. phyllomanica Gordon Leppig 1997-6-19 445 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UCR52379  Carex exsiccata L. P. Janeway 1982-6-12 4 Humboldt Dry Lagoon 3 Comment
  UC562648  Carex feta Joseph P. Tracy 1935-5-25 13838 Humboldt Fort Seward 106 Comment
  UC562647  Carex feta Joseph P. Tracy 1928-6-17 8451 Humboldt at Willow Creek Trinity River Valley 152 Comment
  HSC43477  Carex fracta Thomas W. Nelson, Jane P. Nelson 1977-7-4 3612 Humboldt Along road N from Alder Springs 1524 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
  CAS-BOT-BC146596  Carex gynodynama Joseph P. Tracy 1936-6-21 14991 Humboldt Iaqua 609 Comment
  CAS-BOT-BC22320  Carex harfordii Joseph Prince Tracy 1935-6-8 13938 Humboldt Eureka. 60 Comment
  UC562660  Carex harfordii Joseph P. Tracy 1935-7-14 14087 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC76807  Carex harfordii L. P. Janeway 1982-6-17 10 Humboldt 305 Comment
  JEPS80026  Carex hendersonii Joseph P. Tracy 1926-6-13 7598 Humboldt Blue Lake Northern Coast Ranges, Blue Lake 152 Comment
  HSC102150  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1057 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC31264  Carex lenticularis var. impressa Joseph Prince Tracy 1932-7-14 10554 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  UC562633  Carex leporina Joseph P. Tracy 1936-6-28 15014 Humboldt near Murphy Meadow (Bald Mountain); Bald Mountain 1066 Comment
  HSC76797  Carex leptopoda L. P. Janeway 1982-6-19 11 Humboldt Near creek from Fern Lake behind HSU fieldhouse. 53 Comment
  HSC103595  Carex luzulina Thomas W. Nelson, Jane Nelson 1987-6-11 8603 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  HSC39228  Carex mendocinensis D. E. Anderson 1971-7-6 - 1284 Humboldt Horse Mtn. Comment
  CAS-BOT-BC32135  Carex multicaulis George Ledyard Stebbins; J. P. Tracy 1942-6-2 3480 Humboldt Head of Yager Creek near Yager, rich soil of moist woods. Comment
  UC1103087  Carex multicostata Joseph P. Tracy 1928-6-24 8469 Humboldt Valley of South Yager Creek 762 Comment
  HSC103353  Carex nervina Thomas W. Nelson, Jane Nelson 1987-6-11 8604 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  SEINET3905214  Carex nudata Thomas Nelson 1977-5-30 3407 Humboldt In Mad River at Anderson's Ford north of Dinsmore on the McKeown Ranch.; 0 610 Comment
  CAS-BOT-BC119383  Carex obnupta David Daniels Keck 1938-8-5 4770 Humboldt Big Lagoon Comment
  POM118373  Carex obnupta Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC562323  Carex obnupta Joseph P. Tracy 1934-7-30 13503 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  CAS-BOT-BC119382  Carex obnupta Joseph Prince Tracy 1934-7-13 13381 Humboldt Arcata Bottom. 15 Comment
  HSC59577  Carex obnupta Rick Lundquist 1979-5-18 112 Humboldt Clam Beach Ponds 0 Comment
  HSC7061  Carex obnupta J. W. Johnson 1962-4-28 1306 Humboldt Arcata, Hollow 10, W.M. Lamphere Farm, Samoa Peninsula Comment
  HSC7066  Carex obnupta Paul Shields Apr 1955 Humboldt 5 mi. N of Arcata Comment
  SEINET10711645  Carex obnupta Robert F. Thorne 1965-8-7 Thorne 35199 Humboldt Big Lagoon; elev. c. 5 ft.; at edge of bog at S end of lagoon. Comment
  CAS-BOT-BC119271  Carex ovalis Joseph Prince Tracy 1937-8-7 15617 Humboldt Bald Mt. Murphy Ridge. 914 Comment
  RSA364776  Carex ovalis D. H. Norris 1971-7-17 19601 Humboldt Along Redwood House Road about 3 miles west of junction with Kneeland-Bridgeville Road. Comment
  SEINET7570348 Image available Carex pachystachya Ray Tallent 1987-8-11 896 Humboldt Six Rivers National Forest, roadside S of Horse Mtn. 1390 Comment
  UC1103100  Carex pachystachya Joseph P. Tracy 1935-6-23 13983 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC119221  Carex pachystachya Harold Ernest Parks; Joseph Prince Tracy 1935-6-16 11271 Humboldt Buck Mt. Lower NW slope. 792 Comment
  HSC90643  Carex pansa Gail Newton 1982-5-5 2535 Humboldt Elk River Wildlife Area, Eureka. Comment
  RSA246858  Carex pansa Robert F. Thorne, Percy C. Everett 1965-8-5 35165 Humboldt Samoa Dunes. 3 Comment
  UC194809  Carex praticola Joseph P. Tracy 1914-5-3 4421 Humboldt Eureka Northern Coast Region 0 Comment
  UC303144  Carex preslii Joseph P. Tracy 1925-7-5 7166 Humboldt High Prairie on Bald Mountain Northern Coast Rages 1066 Comment
  POM160299  Carex serratodens Joseph P. Tracy 1926-6-27 7692 Humboldt Horse Mountain. 1220 Comment
  UC562269  Carex stipata var. stipata Joseph P. Tracy 1931-5-17 9422 Humboldt opposite mouth Willow Creek (Lack Pond); Northern Coast Ranges, Trinity River Valley 152 Comment
  SEINET200796  Carex subbracteata J. P. Tracy 1928-6-24 8465 Humboldt Valley of S Yager Creek 0 Comment
  CAS-BOT-BC116939  Carex subbracteata Joseph Prince Tracy 1935-7-14 14087 Humboldt Wet meadow, Grouse Mountain. 1524 Comment
  JEPS79863  Carex subbracteata Joseph P. Tracy 1916-5-31 4695 Humboldt along Eel R. from S. Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  UC1103099  Carex subfusca Joseph P. Tracy 1938-7-7 16030 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  UC562636  Carex subfusca Joseph P. Tracy 1936-6-5 14858 Humboldt 6 mi se Arcata (Fickle Hill) 579 Comment
  CHSC106512  Carex tumulicola Peter F. Zika 2009-6-15 24495 Humboldt Outer North Coast Range (NCoRO), between Lord-Ellis and Berry summits, above Route 299, 2.3 road miles W of junction with Chezen Road. 680 Comment
  CAS-BOT-BC115540  Carex unilateralis Joseph Prince Tracy 1930-6-15 8756 Humboldt Bordering a pond, Dobbyn Creek 152 Comment
  UC1152051  Carex utriculata Joseph P. Tracy 1950-7-25 19065 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC562326  Carex vesicaria var. major Joseph P. Tracy 1927-7-17 8277 Humboldt lower w foothills Chaparral Mountain (Three Cabins); North Coast Ranges 457 Comment
  CHSC43009  Carex viridula subsp. viridula L. P. Janeway 1987-8-30 2534 Humboldt At Dry Lagoon. Middle of lagoon. 3 Comment
  UCR160739  Castilleja George K. Helmkamp, E. A. Helmkamp 2001-7-8 7015 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  CHSC19743  Castilleja ambigua subsp. humboldtiensis D. E. Anderson; N. Dennis 1965-6-8 100 Humboldt Salt marsh along east edge of Humbolt Bay, 1 mile south of Arcata. Comment
  JEPS76823  Castilleja ambigua subsp. humboldtiensis L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4804 Humboldt about 1.2 mi n Eureka bridge (Samoa peninsula); Samoa peninsula Comment
  HSC56121  Castilleja applegatei G. L. Clifton, Griswold 1979-8-1 11903 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC1238991  Castilleja applegatei subsp. martinii Freed W. Hoffman 1949-7-15 3009 Humboldt e slope Mule Slide (a little s of Blue Ridge); North Coast Ranges, Mt. Lassic Area Comment
  SD62425  Castilleja applegatei subsp. pinetorum Lincoln Constance, Elwood Molseed, Robert Ornduff 1961-7-19 3701 Humboldt Open ridge easr of Hinkey Summit. Santa Rosa Range, Humboldt National Forest Comment
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Mar 3 2014
  HSC72482  Castilleja attenuata J. P. Smith, J. O. Sawyer 1973-5-12 6682 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  UC146238  Castilleja attenuata Joseph P. Tracy 1903-5-22 1881 Humboldt Alder Point Northern Coast Ranges, Eel River (on Eel River) 152 Comment
  RSA167244  Castilleja litoralis Joseph P. Tracy 1950-6-8 18749 Humboldt Bear River Ridge, south slope near Capetown. Cape Ridge. One mile east of Cape Mendocino. 152 Comment
  UC1173699  Castilleja miniata Joseph P. Tracy 1939-8-20 16429 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  CAS-BOT-BC244880  Castilleja miniata Joseph P. Tracy 1939-8-20 16429 Humboldt near Blue Bale, along Mad River 15 Comment
  UC179928  Castilleja miniata Joseph P. Tracy 1914-7-4 4537 Humboldt High Prairie Northern Coast Ranges, Bald Mountain (on Bald Mountain) 1066 Comment
  HSC70695  Castilleja pruinosa Gail Newton 1980-7-15 1558 Humboldt Near Sims Mtn. 1311 Comment
  UC199378  Castilleja rubicundula subsp. lithospermoides P. E. Goddard 1907-5-29 . 104 Humboldt Van Duzen Comment
  UC1502127  Ceanothus R. Sutherland 1975-7-1 2 .1.7 75 Humboldt along Baker Creek; Garberville Quad., along Baker Creek 335 Comment
  HSC98788  Ceanothus cuneatus Cara Witte 2008-6-4 675 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  CAS-BOT-BC50055  Ceanothus incanus W. R. Dudley 1899-6-20 s.n. Humboldt Near Eel River in woods Comment
  HSC37053  Ceanothus incanus R. Sutherland 1975-5-26 1 .26575 Humboldt 305 Comment
  RSA399868  Ceanothus incanus J. P. Smith, J. O. Sawyer 1975-4-6 8050 Humboldt Road to Shelter Cove, 5 miles from the Whitehorn Ettersburg jct, roadside in mixed evergreen woodland Comment
  HSC98731  Ceanothus integerrimus Cara Witte 2007-8-9 635 Humboldt Friday Ridge Road/ 6N08. 1.5 miles north of intersection with Forest Service Road 5N09. 1383 Comment
  CAS-BOT-BC51144  Ceanothus lemmonii D. Haskamp; E. Sonnenblick; M. Taft 1995-4-23 38 Humboldt On rd. A16 NE of Basin Gulch campground 11 miles. On west side of road 731 Comment
  UC275285  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1924-5-11 6676 Humboldt Bull Creek Northern Coast Ranges 121 Comment
  UCSB12871  Ceanothus oliganthus var. sorediatus Zinke, P. 1950-10-4 Humboldt 2 miles southeast of Honeydew 182 Comment
  CAS-BOT-BC51223  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  HSC37085  Ceanothus parryi R. Sutherland 1975-6-4 1 .4675 Humboldt Near county rd. 2 mi NE of Briceland 168 Comment
  JEPS42237  Ceanothus parryi W. L. Jepson 1932-8-6 16491 Humboldt Weott 91 Comment
  CAS-BOT-BC52042  Ceanothus prostratus Doris K. Kildale 1926-4-25 1810 Humboldt Hoopa Mountain 792 Comment
  HSC18322  Ceanothus pumilus Class 1937-5-12 Humboldt Hoopa Comment
  RSA46916  Ceanothus pumilus Doris K. Kildale 1926-4-25 1811 Humboldt Hoopa Mt. 793 Comment
  SEINET201060  Ceanothus pumilus J. P. Tracy 1946-5-4 17526 Humboldt Willow Creek Canyon along Trinity Highway 610 Comment
  CAS-BOT-BC52954  Ceanothus thyrsiflorus Doris K. Kildale 1927-5-14 3289 Humboldt Big Lagoon - coast terrace Comment
  CAS-BOT-BC52995  Ceanothus thyrsiflorus C. Hart Merriam 1920-8-29 s.n. Humboldt Lower Eel River between Dyerville and Pepperwood Comment
  HSC18331  Ceanothus thyrsiflorus A. E. Inman 1962-5-25 Humboldt S bank of Mad River, 50 yds W of Hwy. 299 bridge Comment
  HSC45658  Ceanothus thyrsiflorus Diane L. Reed 1978-4-29 43 Humboldt Trinidad Head Comment
  JEPS42171  Ceanothus thyrsiflorus W. L. Jepson 1932-8-6 16492 Humboldt Weott Comment
  POM118613  Ceanothus thyrsiflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA31956  Ceanothus thyrsiflorus A. A. Heller 1937-6-11 15916 Humboldt Sandy bluff above Patric Point State Park near Big Lagoon Comment
  SEINET12211378  Ceanothus thyrsiflorus F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -305 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  UCD112839  Ceanothus velutinus J. Street 1950-6-24 s.n. Humboldt Close to coast north of Usal. Comment
  RSA34006  Centaurea melitensis J. Wendell Howe 1933-7-26 s.n. Humboldt Mad River near Blue Lake Comment
  HSC90328  Centaurium erythraea Jean Hanson 1980-6-22 104 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka, W end of island, 50 ft. NW of dike Comment
  JEPS46935  Centaurium muehlenbergii W. L. Jepson 1902-7-13 2022 Humboldt Willow Creek to Hupa Comment
  HSC72635  Cephalanthera austiniae J. P. Smith 1977-7-3 9248 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  HSC74319  Cephalanthera austiniae Gail Newton 1980-7-20 1600 Humboldt Near Bell Swamps 1463 Comment
  CAS-BOT-BC384904  Cerastium arvense Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC384903  Cerastium arvense Alice Eastwood; John Thomas Howell 1937-6-24 4862 Humboldt Road to Horse Mt. Comment
  UC8236  Cerastium arvense J. Burtt Davy 1899-6-9 5366 Humboldt Chamisse Ridge n. of Harris; Chamisse Ridge Comment
  UC1198321  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1900-5-28 809 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  HSC98768  Cerastium fontanum subsp. vulgare Cara Witte 2007-8-8 621 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  HSC47013  Cerastium glomeratum Sheila Logan 1978-4-7 2 Humboldt Samoa Sand Dunes, 1/4 mi. N of Coast Guard Station at N spit of Samoa Peninsula Comment
  HSC100708  Cerastium pilosum Carl C. Marshall Jun 1888 61 Humboldt No data. Comment
  UC582765  Chaenactis douglasii var. douglasii Joseph P. Tracy 1932-7-12 10462 Humboldt head of Brett Hole; Trinity Summit, Brett Hole 1828 Comment
  HSC31980  Chamaecyparis lawsoniana Steve Selva, Roger Jensen 1974-8-19 25 Humboldt Horse Mtn. Ski Area Comment
  HSC41651  Chamaecyparis lawsoniana Thomas W. Nelson 1977-10-20 3758 Humboldt Above junction of Maple Creek and Kneeland Rds. 854 Comment
  SBBG34240  Chamaecyparis lawsoniana M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  JEPS52363  Chamaesyce serpyllifolia Joseph P. Tracy 1928-9-16 6555 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley Comment
  HSC55127  Cheilanthes gracillima G. L. Clifton, Terry Griswold 1979-8-1 11932 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  UC132200  Chenopodium album Joseph P. Tracy 1905-10-1 2394 Humboldt near mouth of Elk River; Northern Coast Range, region about Humboldt Bay 0 Comment
  UC55948  Chenopodium album J. P. Tracy 1903-8-4 1927 Humboldt Immediate vicinity of Eureka 0 Comment
  UC275478  Chenopodium ambrosioides Joseph P. Tracy 1925-7-26 7212 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA478469  Chenopodium botrys M. B. Dunkle 1936-8-22 4860 Humboldt Williams Grove, Eel River. 213 Comment
  HSC76590  Chimaphila menziesii Denis Kearns 1981-7-24 448 Humboldt Near Whiteys Peak. 1768 Comment
  HSC55227  Chimaphila umbellata G. L. Clifton, Griswold 1979-8-2 12427 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC45410  Chimaphila umbellata Thomas W. Nelson, Jane Nelson 1977-7-1 3567 Humboldt 1494 Comment
  RSA467018  Chimaphila umbellata subsp. occidentalis A. C. Life 1924-2-23 14589 Humboldt Kings Mts.,Redwood Park. Comment
  HSC15440  Chlorogalum pomeridianum Elrid H. Spinas 1948-5-15 13 Humboldt Horse Mtn. Comment
  SEINET3992227  Chlorogalum pomeridianum Unknown 1946-7-7 17611 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC497671  Chlorogalum pomeridianum L. R. Abrams 1918-6-16 7191 Humboldt Willow Creek 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
  POM289618  Chrysanthemum leucanthemum Lyman Benson 1928-7-10 421 Humboldt Hills at Fortuna; Seaward N Coast Mt. Range, Mouth of Eel River 30 Comment
  HSC72798  Chrysolepis chrysophylla Gail Newton 1980-6-17 214 Humboldt Near Onion Mtn. 1341 Comment
  UCSB1015  Chrysolepis chrysophylla Muller, Cornelius 1954-6-21 Humboldt 8 mi. ESE of Mad River on road to Forest Glen Comment
  UC672860  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1940-8-25 16715 Humboldt Bald Mountain 975 Comment
  CAS-BOT-BC420346  Chrysosplenium glechomifolium V. Rattan 1879-6-1 27 Humboldt Long Prarie Creek Comment
  UC1222141  Cicendia quadrangularis Joseph P. Tracy 1951-5-6 19397 Humboldt Carlotta; flat by old Strong's District School House, 5 mi e of town 60 Comment
  UC1197339  Cicuta douglasii Joseph P. Tracy 1926-10-24 7822 Humboldt near High Prairie (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UC154254  Cicuta douglasii Joseph P. Tracy 1907-7-20 2597 Humboldt Region about Humboldt Bay, Northern Coast Region Humboldt Bay; Northern Coast Region, Humboldt Bay 0 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
  UC1119169  Cirsium arvense H. S. Yates 1936-6-23 5868 Humboldt 3 mi ne Scotia; Rohnerville Quad. Comment
  UCSC000744  Cirsium arvense G. T. Nordstrom 1933-6-30 1443 Humboldt 1.6 miles W.S.W. of Orick Orick - Orick 46 Comment
  HSC40678  Cirsium douglasii var. breweri Thomas W. Nelson 1976-7-9 2987 Humboldt Along 1S07 just W of summit 1585 Comment
  BLMAR592  Cirsium occidentale var. candidissimum Jennifer Wheeler 2010-7-13 592 Humboldt King range 792 Comment
  UC204828  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  UCD144226  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt near Berry Summit on Titlow Hill Road, 3.9 miles south of Highway 229. Comment
  UC582534  Cirsium remotifolium var. rivulare Joseph P. Tracy 1931-6-28 9596 Humboldt lower foothills of nw slope of Buck Mountain 914 Comment
  CAS-BOT-BC160974  Clarkia amoena subsp. amoena L. R. Abrams 1922-6-25 8229 Humboldt 6 miles north of Garberville along Eel River Comment
  UC1222857  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1950-6-15 18806 Humboldt 7 mi n Harris; Mail Ridge 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
  UC144078  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1909-7-31 3030 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS1957 Image available Clarkia purpurea subsp. viminea W. L. Jepson 1902-8-13 1971 Humboldt near Redwood Creek; Hupa Road; Hupa Road, near Redwood Creek, Humboldt Co. Comment
  JEPS43563  Clarkia purpurea subsp. viminea W. L. Jepson 1902-7-4 1982 Humboldt beneath The Maul Oaks; Hupa Valley Comment
  HSC98104  Clarkia rhomboidea Cara Witte 2007-6-20 309 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  HSC26366  Claytonia perfoliata T. O. Osborne 1970-4-5 82 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  SEINET9136596  Claytonia perfoliata subsp. mexicana C. E. Fellows 1972-4-29 482 Humboldt Ca 20 meters below the W side of the road to Kneeland, 8 miles ESE of Eureka, 3.1 miles above town of Freshwater. 610 Comment
  HSC34799  Claytonia sibirica Scott M. Kruse 1975-4-9 5 Humboldt Redwood Park, Arcata 18 Comment
  HSC55112  Claytonia sibirica G. L. Clifton 1979-7-31 11861 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC55187  Claytonia sibirica G. L. Clifton, Griswold 1979-8-2 12246 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC71792  Claytonia sibirica Gail Newton 1980-6-16 176 Humboldt Near Monks Camp. 1097 Comment
  SEINET198592  Claytonia sibirica H. E. Parks 01421 Humboldt Spruce Cove Trinidad Comment
  SEINET4087419  Claytonia sibirica O. M. Clark 1932-1 5314 Humboldt South Eureka. Comment
  UC412615  Claytonia sibirica Mrs. M. H. Manning Humboldt near Hupa Comment
  UC672987  Claytonia sibirica Joseph P. Tracy 1932-7-14 10536 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC443904  Claytonia sibirica D. E. Breedlove 1961-7-4 663 Humboldt On north bank of the Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  HSC17725  Claytonia sibirica D. E. Anderson 1962-3-31 1970 Humboldt Coastal area of Prairie Creek State Park Comment
  HSC59687  Claytonia sibirica George Kirn 1977-10-3 Humboldt Vicinity of Jolly Giant Creek, 1/4 mi. E of HSU campus 46 Comment
  HSC97175  Claytonia sibirica Erin Lonergan, Benjamin Hart 2007-6-13 8 Humboldt 1 mi. E of FS Rd. NF1 on FS Rd. 5N04 1524 Comment
  RSA0059513  Claytonia sibirica H. M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans. Comment
  RSA67628  Claytonia sibirica P. A. Munz 1951-7-15 16549 Humboldt 5 miles N of Willow Creek 305 Comment
  SEINET11942406  Claytonia sibirica H. P. Chandler 1901-1 1264 Humboldt North Coast Ranges, Redwood Belt 152 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
  HSC78577  Claytonia washingtoniana C. E. Fellows 1970-4-18 258 Humboldt NE end of Big Lagoon, E side of Hwy. 101 Comment
  CAS-BOT-BC92598  Clematis ligusticifolia Joseph P. Tracy 1937-8-3 15608 Humboldt Along Mad River, near Blue Lake. 15 Comment
  HSC14260  Clinopodium douglasii Paul Shields Jun 1955 Humboldt 3 mi. N of Weott Comment
  HSC39182  Clinopodium douglasii D. E. Anderson, J. P. Smith 1971-6-28 - 1218 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  CHSC3493  Clintonia andrewsiana Roger Jaegel 1966-5-8 151 Humboldt Located twenty-five miles southeast of Eureka, in Richardson's Grove Redwood Park. Comment
  CAS-BOT-BC499336  Clintonia andrewsiana M. S. Jussel 1931-5-2 s. n. Humboldt 20 miles N. of Garberville 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
  HSC99448  Clintonia uniflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 98 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCR139132  Coincya monensis Jim Belsher 1997-2-13 01 Humboldt Lot ESE of the Manila Community Services District sewage pump station 6 Comment
  UC147866  Collinsia grandiflora Joseph P. Tracy 1908-6-8 2638 Humboldt Kneeland Prairie; Northern Coast Ranges; Kneeland Prairie 762 Comment
  UC177178  Collinsia grandiflora Joseph P. Tracy 1913-6-14 4135 Humboldt opposite Buck Mtn (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC198607  Collinsia grandiflora Joseph P. Tracy 1913-1 4777 Humboldt at Dinsmore's (in Van Duzen Valley); North Coast Ranges 762 Comment
  HSC40014  Collinsia greenei Thomas W. Nelson, Jane P. Nelson 1976-7-1 2915 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC73765  Collinsia greenei Gail Newton 1980-7-11 1317 Humboldt Near Red Mtn. 1341 Comment
  HSC32485  Collinsia linearis Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  HSC32278  Collinsia parviflora D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5625 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC40672  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-7-1 2929 Humboldt Along beanch to W of Mt. Lassic (Signal Peak) 1677 Comment
  HSC16924  Collomia heterophylla D. E. Anderson 1962-7-17 2274 Humboldt Camp Bauer, 1/4 mi. E of Korbel, along N Fork of Mad River Comment
  HSC43207  Collomia heterophylla R. Sutherland 1976-8-13 28 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  JEPS26235  Collomia tracyi Joseph P. Tracy 1939-8-5 16372 Humboldt Dinsmore's Van Duzen River (in sand bar) 737 Comment
  UC672847  Comandra umbellata subsp. californica Joseph P. Tracy 1927-5-15 8038 Humboldt near the South Fork (Trinity River Valley); Trinity River Valley 182 Comment
  HSC37972  Conyza canadensis Peter Sorensen 1976-7-15 Humboldt Woodley Island Comment
  RSA30377  Coptis laciniata Lincoln Constance, R. C. Rollins 1942-5-11 2868 Humboldt 3 miles W of E Fork of Willow Creek, Comment
  HSC74155  Corallorhiza maculata Gail Newton 1980-7-20 1599 Humboldt Near Bell Swamps 1463 Comment
  HSC27568  Corallorhiza mertensiana J. D. Ackerman, A. Montalvo 1973-7-4 95 Humboldt Grogan Hole Rd, 18 mi. E of Hoopa Comment
  UC1046561  Corallorhiza mertensiana R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3420 Humboldt 4700 ft ridge between Mad River and; Bald Mountain, Snow CamRedwood Creek Comment
  UC14973  Corallorhiza mertensiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5621 Humboldt Bald Mt. North Coast Ranges Comment
  RSA0084713  Cordylanthus maritimus subsp. canescens Arnold Tiehm 2002-8-14 14063 Humboldt Black Rock Desert, Casey Springs, 2.1 road miles N of Black Rock Springs. 1204 Comment
  RSA244999  Cordylanthus maritimus subsp. palustris William J. Ferlatte, B. D. Rogers 1966-8-15 3125 Humboldt 6 miles east of Korbel; Cutoff Red wood Comment
  UC175787  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1912-6-16 3697 Humboldt Hookton Northern Coast Region, Region about Humboldt Bay (salt marsh) 0 Comment
  CAS-BOT-BC287184  Coreopsis tinctoria Henry M. Pollard 1948-8-12 s.n. Humboldt Near mouth of Perch Creek, near Orleans Comment
  UC1223036  Corethrogyne filaginifolia Joseph P. Tracy 1950-6-18 18764 A Humboldt 1 mi w of town Petrolia Comment
  UC1223039  Corethrogyne filaginifolia Joseph P. Tracy 1947-6-8 17705 Humboldt 5 mi e of town old Strong's District School House; Carlotta 60 Comment
  CAS-BOT-BC32935  Corethrogyne filaginifolia var. californica Henry Nicholas Bolander 1867-6-1 s.n. Humboldt On the coast at Shelter Cove and at Fort Bragg Comment
  RSA47113  Corethrogyne filaginifolia var. californica Doris K. Kildale 1925-7-26 1066 Humboldt Mad River near Blue Lake Comment
  CAS-BOT-BC212012  Cornus nuttallii Doris K. Kildale 1926-7-25 2434 Humboldt Briceland Bridge, 1/2 west of Garberville 114 Comment
  CAS-BOT-BC212013  Cornus nuttallii Doris K. Kildale 1927-5-1 3118 Humboldt Blocksburg Comment
  HSC6405  Cornus nuttallii J. R. Eichelberger 1964-4-10 30 Humboldt 7 mi. N of Willow Creek on Hwy. 96. Comment
  RSA89892  Cornus nuttallii E. K. Balls, P. C. Everett 1953-10-13 18656 Humboldt 17.4 mi. east of jct. of hwys 101 and 299 above Blue Lake. 274 Comment
  RSA97270  Cornus nuttallii F. W. Peirson 1923-7-9 3956 Humboldt Humboldt County State Park on Eel River, northern California. Comment
  HSC58048  Cornus sericea subsp. sericea G. L. Clifton, Griswold 1979-8-1 11907 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC58225  Cornus sericea subsp. sericea Walter Overton 1979-8-1 12368 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1196908  Cornus sericea subsp. sericea Joseph P. Tracy 1930-7-25 8882 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC249598  Cornus sericea subsp. sericea Joseph P. Tracy 1921-9-4 5949 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  HSC40243  Cornus sessilis J. P. Smith, J. O. Sawyer 1976-5-2 8619 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  UC249592  Cornus sessilis Joseph P. Tracy 1921-8-21 5941 Humboldt Trinity R. at mouth of S. Fork <Trinity R.>; Northern Coast Ranges, Trinity R. 152 Comment
  UC668054  Coronopus didymus Joseph P. Tracy 1938-7-15 16067 Humboldt Mouth of Eel River 3 Comment
  HSC104408  Corylus cornuta subsp. californica Adam N. Canter 2017-4-1 5 Humboldt Eureka, Fort Humboldt State Historic Park, west-facing bluffs along east side of Hwy. 101 Comment
  RSA1364  Corylus cornuta var. californica C. B. Wolf 1929-08 1424 Humboldt Stephens Grove, Redwood Highway. Comment
  HSC97308  Crataegus suksdorfii M. Mesler 2006-6-6 610 Humboldt Big Hill Rd. 11.4 mi. E of Hwy. 96 at Six Rivers Forest boundary 1463 Comment
  CAS-BOT-BC291482  Crepis capillaris M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka Comment
  UC1071676  Crepis capillaris H. L. Person 1932-7-19 Humboldt Lindsay Creek Eureka Quadrangle Comment
  CAS-BOT-BC290590  Crepis capillaris L. R. Abrams; R. Bacigalupi 1922-6-25 8287 Humboldt North of Big Lagoon Comment
  CAS-BOT-BC291483  Crepis capillaris Joseph P. Tracy 1948-9-26 18299 Humboldt Fickle Hill, 6 miles southeast of Arcata 609 Comment
  CAS-BOT-BC291484  Crepis capillaris Roxana S. Ferris 1955-7-11 12977 Humboldt Near Blue Lake Comment
  CAS-BOT-BC291487  Crepis capillaris L. R. Abrams 1927-8-31 12055 Humboldt Marshes between Arcata and Eureka along highway Comment
  HSC26921  Crepis capillaris Brad Klipfel 1973-7-24 221 Humboldt Arcata Comment
  HSC42455  Crepis pleurocarpa Barbara Kelly 1977-7-16 540 Humboldt On Horse Mtn. Rd., 1/2 mi. below where it forks; 1.5 mi. below summit 1402 Comment
  HSC44131  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1977-7-4 3599 Humboldt Along old trail N of Alder Spring 1555 Comment
  JEPS22553  Crocidium multicaule Joseph P. Tracy 1933-5-21 12212 Humboldt McClellan Mountain 822 Comment
  UC1199231  Crocidium multicaule Joseph P. Tracy 1929-3-16 8528 Humboldt at Willow Creek (gravel bar); Trinity River Valley 152 Comment
  UCD138689  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-30 17446 Humboldt northwest corner of overpass of Hwy 101 freeway to Garberville, 1 mile south of Fields Landing. 1524 Comment
  UC1239665  Cryptantha leiocarpa Joseph P. Tracy 1927-6-26 8212 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  HSC78612  Cryptantha leiocarpa L. P. Janeway, Amy Eisenberg 1984-4-24 743 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven Rds. and E of the Willow patch 3 Comment
  UC1222272  Cryptantha milobakeri Joseph P. Tracy 1949-8-11 18469 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek, electric power line southward); Kinsey Ridge 1280 Comment
  HSC44543  Cuscuta occidentalis Brad Klipfel 1973-7-15 162 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC902072  Cuscuta occidentalis Joseph P. Tracy 1949-8-4 18429 Humboldt Box Camp Trinity Summit 1463 Comment
  UC562484  Cuscuta salina var. major Joseph P. Tracy 1933-8-22 12990 Humboldt Mouth of Eel River 3 Comment
  SEINET201035  Cynodon dactylon var. dactylon Joseph P. Tracy 1940-10-17 16763 Humboldt South Fork Station 61 Comment
  HSC34495  Cynoglossum grande J. D. Ackerman 1975-5-3 438 Humboldt Ca. 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection W of Redwood Creek Comment
  UC1222257  Cynoglossum occidentale Joseph P. Tracy 1948-8-15 18121 Humboldt on Ridge 2 mi. e. Grove's Prairie (Trinity Summit Rd. high point); Trinity Summit 1524 Comment
  CAS-BOT-BC190380  Cynosurus echinatus H. E. Parks; Joseph P. Tracy 1933-6-11 12542 Humboldt Northern Coast Ranges. Near Miranda. 152 Comment
  POM89794  Cyperus bipartitus Joseph P. Tracy 1920-8-15 5366 Humboldt Klamath River, at mouth of Bluff Creek 152 Comment
  CAS-BOT-BC114625  Cyperus eragrostis Henry M. Pollard 1945-8-27 s.n. Humboldt Pond near Harley place. Comment
  CDA18046  Cyperus esculentus R. Spadoni 1999-8-3 PDR 1170316 Humboldt 1400 Main, Ferndale. 0 Comment
  RSA53797  Cyperus esculentus Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon. Comment
  CHSC92487  Cyperus strigosus Gordon Leppig 2004-9-6 2197 Humboldt Trinity River. East bank of river on sandy shore. Across river from the Loncar Summer Estate, 3.5 k north of Willow Creek. UTM Zone 10, 446562E, 4535514N 120 Comment
  UC1103641  Cyperus strigosus Joseph P. Tracy 1931-9-7 9655 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC1196445  Cypripedium montanum D. F. Young 1924-4-26 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC98728  Cystopteris fragilis Cara Witte 2007-7-20 563 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  CSUSB1619  Cytisus monspessulanus Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  HSC14673  Cytisus scoparius J. Mustain 1963-3-30 14 Humboldt Big Lagoon Park. Comment
  SEINET8477238  Cytisus scoparius D. Taylor 2011-5-4 21114 Humboldt Alderpoint Road in the vicinity of snowline fox farm (Larabee Valley 7 1/2 USGA quadrangle placename), vicinity of the road crossing of Knack Creek 341 Comment
  HSC79501  Dactylis glomerata Kenneth Clark 1980-6-14 685 Humboldt Shelter Cove; in stream alluvium of N fork of Dead Man's Gulch 198 Comment
  HSC9530  Dactylis glomerata R. D. Zortman 1963-4-14 30 Humboldt 5.0 mi. NE of Arcata, off Warren Creek Road. 91 Comment
  HSC9542  Dactylis glomerata S. R. Johnson 1965-5-10 54 Humboldt 1.0 mi. N of Luffenholtz Beach Comment
  UCSC000025  Dactylis glomerata H. S. Yates 1936-6-23 5852 Humboldt 2 miles E. of the Mad River Mad River - Eureka 30 Comment
  CAS-BOT-BC189735  Danthonia californica Alice Eastwood; John Thomas Howell 1937-6-22 4734 Humboldt Near Alder Point. Comment
  HSC102211  Danthonia californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1126 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  SEINET200656 Image available Danthonia californica Joseph P. Tracy, H. E. Parks 1931-5-31 9548 Humboldt Kneeland Prarie. 792 Comment
  UC183807  Danthonia californica Joseph P. Tracy 1911-7-7 3385 Humboldt 3 mi nw junction of Willow Creek with Trinity River (meadows on mountain side, near Beebe's Ranch); Northern Coast Ranges 914 Comment
  RSA10086  Danthonia californica var. americana Joseph P. Tracy 1931-5-31 9548 Humboldt Kneeland Prairie 793 Comment
  UC184354  Danthonia californica var. americana Joseph P. Tracy 1912-6-9 3650 Humboldt Alton Northern Coast Region 30 Comment
  UC160909  Delphinium decorum subsp. decorum J. P. Tracy 1910-4-17 3119 Humboldt bluff back of Bucksport; immediate vicinity of Eureka 0 Comment
  JEPS23882  Delphinium decorum subsp. tracyi Frank W. Gould 1939-5-30 837 Humboldt Near top of Horse Mountain (about 25 miles due east of Eureka) Comment
  RSA79370  Delphinium decorum subsp. tracyi E. K. Balls, Lee W. Lenz 1952-5-12 17196 Humboldt 11.2 miles E along Hwy 36 from Bridgeville to Cobbs Comment
  UC1196311  Delphinium hesperium subsp. pallescens Joseph P. Tracy 1932-6-14 10146 Humboldt open hillside near South Fork; Northern Coast Ranges, Trinity River Valley 304 Comment
  HSC37516  Delphinium menziesii J. D. Ackerman 1974-5-25 265 Humboldt 0.25 mi. S of Lufenholtz Beach between Moonstone and Trinidad Comment
  CAS-BOT-BC9955  Delphinium nudicaule Doris K. Kildale 1928-5-27 5944 Humboldt Kneeland Prairie 853 Comment
  CAS-BOT-BC121962  Delphinium trolliifolium Doris K. Kildale 1928-5-15 6018 Humboldt Bug Creek, Chaparral Mountain 914 Comment
  HSC32854  Delphinium trolliifolium Thomas W. Nelson, James Nelson 1973-5-28 942 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA20971  Delphinium trolliifolium Carl B. Wolf 1937-6-14 8827 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  CAS-BOT-BC121963  Delphinium trolliifolium Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale on road to Cape Mendocino. Comment
  JEPS2559 Image available Dentaria californica Joseph P. Tracy 1921-3-20 5426 Humboldt 12 mi e Hydesville (Van Duzen River at Blue Slide); Northern Coast Ranges, Van Duzen River; Van Duzen River at Blue Slide, E of Hydesville, Humboldt Co. 91 Comment
  UCD61243  Deschampsia cespitosa Linda M. Barker 1976-7-5 1645 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. 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
  UC249800  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1923-6-19 6301 Humboldt Wilder Ridge near Kings Peak; Northern Coast Ranges, Wilder Ridge 762 Comment
  RSA126949  Deschampsia danthonioides H. S. Yates 1936-6-17 5718 Humboldt Burr Valley; South Fork Pk. 1646 Comment
  HSC24253  Deschampsia elongata D. E. Anderson 1970-5-21 5081 Humboldt Scotia bluffs. Comment
  HSC98123  Deschampsia elongata Cara Witte 2007-6-19 292 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  JEPS75412  Deschampsia elongata W. L. Jepson 1932-7-24 16381 Humboldt 91 Comment
  POM207195  Deschampsia elongata Jos Burtt Davy, W. C. Blasdale 1899-08 5516 B Humboldt Near Pepperwood Comment
  UC184920  Deschampsia elongata Joseph P. Tracy 1912-6-9 3684 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CAS-BOT-BC201767  Deschampsia elongata Catherine Best 1990-6-28 1395 Humboldt In the Forest Service Camp near Lassic [Lassics] Comment
  HSC58010  Descurainia incana G. L. Clifton 1979-7-31 11806 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC98873  Dianthus armeria Cara Witte 2007-8-1 618 Humboldt Friday Ridge Road (Forest Service Road 6N08). Approximately 1.25 miles northeast of intersection with Friday Camp. 1222 Comment
  HSC42793  Dicentra formosa Rick Cooper 1977-4-23 14 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UCR179275  Dicentra formosa R. G. Swinney 1968-3-28 237 Humboldt East of Humboldt State College, Arcata 152 Comment
  HSC8361  Dicentra formosa D. K. Smith 1968-3-3 11 Humboldt West End Rd., 3 mi. from Hwy. 299 Comment
  HSC8366  Dicentra formosa J. R. Kahl 1962-4-2 13 Humboldt 2 mi. S of Trinidad along Hwy. 101, 10 yds. off road Comment
  UC1196307  Dicentra formosa Joseph P. Tracy 1920-4-18 5315 Humboldt near Glendale (Mad River, around Humboldt Bay); Northern Coast Region, Humboldt Bay, Mad River 30 Comment
  JEPS9734  Dicentra pauciflora Joseph P. Tracy 1933-7-16 12776 Humboldt near McKay Camp (South Fork Mountain); North Coast Ranges, South Fork Mountain 1676 Comment
  RSA152289  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1942-7-18 17286 Humboldt 1/2 mile N. E of Garberville 30 Comment
  HSC32382  Dichelostemma capitatum subsp. capitatum Linda M. Barker 1974-5-11 182 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC38076  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, James Nelson 1976-5-30 2631 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC97467  Dichelostemma capitatum subsp. pauciflorum Cara Witte 2007-5-29 126 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC38095  Dichelostemma congestum Thomas W. Nelson, James Nelson 1976-5-30 2616 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC501014  Dichelostemma ida-maia Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC501017  Dichelostemma ida-maia Doris K. Kildale 1927-7-10 3735 Humboldt Gans Prairie - Bald Hills 457 Comment
  CAS-BOT-BC501030  Dichelostemma ida-maia Alice Eastwood; John Thomas Howell 1937-6-22 4729 Humboldt Near Alder Point Comment
  SEINET8476733  Dichelostemma ida-maia M. J. Williams 1969-5-23 s.n. Humboldt Bald Hills. 152 Comment
  UC15034  Dichelostemma multiflorum P. E. Goddard 1901-7 41 Humboldt Hupa Comment
  HSC23713  Digitalis purpurea Tim Baroni 1971-6-25 61 Humboldt 8 mi. E of Petrolia Comment
  SEINET13751974 Image available Diplacus aurantiacus H. E. Parks, S. T. Parks 1951-1 Humboldt Along bay shore near landing. Trinidad. Comment
  CAS-BOT-BC153240  Diplacus kelloggii Doris K. Kildale 1928-5-1 5985 Humboldt [MacLellan] McClellan Mountain 914 Comment
  JEPS8812  Dipsacus fullonum Joseph P. Tracy 1937-8-3 15610 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  UC249509  Dipsacus sativus Joseph P. Tracy 1922-8-16 6105 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  SEINET4170350  Disporum hookeri Bassett Maguire, Ruth Maguire , C. B. Maguire 1934-6-8 15087 Humboldt Bolling Grove State Park Comment
  UC30077  Disporum hookeri Harley P. Chandler May, 1901 1089 Humboldt North Coast Ranges 152 Comment
  POM277209  Disporum hookeri var. hookeri Lyman Benson 1929-7-12 1788 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  SEINET4170363  Disporum smithii Unknown 1933-5-12 3413 Humboldt Dyerville, South Fork of the Eel River Comment
  SEINET4170370  Disporum smithii Unknown 1933-5-21 12209 Humboldt McClellan Mountain 671 Comment
  JEPS14696  Dodecatheon alpinum W. L. Jepson Jul 16 1902-Jul 23 1902 2105 Humboldt Trinity Summit 2133 Comment
  POM126114  Dodecatheon hendersonii Joseph P. Tracy 1922-4-30 5994 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  UC28972  Downingia elegans Chesnut and Drew Aug 1888 Humboldt Comment
  HSC36312  Drosera rotundifolia James Beaver 1973-5-20 Humboldt Big Lagoon Comment
  HSC57943  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-7-31 11614 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  JEPS70196  Dryopteris arguta Robert J. Rodin 1969-8-16 8368 Humboldt near Carlotta (near Van Duzen River) Comment
  SEINET6424295 Image available Dryopteris dilatata Hicks, Carpenter 1977-7-12 Humboldt Prairie Creek State Park Comment
  CAS-BOT-BC71054  Dryopteris expansa Mrs. H. C. Cantelow 1936-5-18 s.n. Humboldt Crokscrew Tree, 8 miles north of Orick Comment
  CAS-BOT-BC428297  Dudleya farinosa Doris K. Kildale 1927-6-25 3544 Humboldt Shelter Cove. Comment
  UC668028  Dulichium arundinaceum Joseph P. Tracy 1938-9-25 16173 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  HSC9660  Echinochloa crus-galli H. E. Parks 24213 Humboldt Trinidad, Spruce Cove. Comment
  HSC58703  Eleocharis acicularis Griswold, Butler 1979-7-11 7086 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  CAS-BOT-BC113645  Eleocharis acicularis Joseph Prince Tracy 1937-8-12 15626 Humboldt Bald Mountain at Lake Prairie Edge of bog. 1066 Comment
  CHSC68427  Eleocharis macrostachya L. P. Janeway 1983-9-24 701 Humboldt 10-30 ft from water line of Big Lagoon, near southwest corner of the county campground. 3 Comment
  JEPS64131  Eleocharis macrostachya W. L. Jepson 1921-8-7 9328 Humboldt Stone Lagoon Humboldt Coast Comment
  CAS-BOT-BC112841  Eleocharis macrostachya Henry M. Pollard 1945-8-27 s.n. Humboldt Pond near Harley place. Comment
  CHSC96444  Eleocharis pachycarpa Gordon Leppig 1997-8-3 648 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E 4557202N. 3 Comment
  SEINET201037  Elymus X hansenii Joseph P. Tracy 1930-7-16 9054 Humboldt South Fork Moutain, open glades along summit near Blake lookout. Comment
  HSC9695  Elymus condensatus J. Wendell Howe 1253 Humboldt Little River Beach Comment
  CDA31707  Elymus glaucus Russell Graham Aug 1960 Humboldt Near Weitchpec 0 Comment
  CAS-BOT-BC203478  Elymus glaucus subsp. glaucus L. R. Abrams 1922-6-25 8224 Humboldt 6 mi north of Garberville Comment
  CAS-BOT-BC203479  Elymus glaucus subsp. glaucus Doris K. Kildale 1929-5-26 9133 Humboldt Klamath River at Orleans 152 Comment
  CAS-BOT-BC234112  Elymus multisetus Joseph P. Tracy 1933-7-25 12893 Humboldt Grouse Mountain 1524 Comment
  UC1103470  Elytrigia repens Joseph P. Tracy 1940-10-5 16751 Humboldt Trinidad; foot of coast bluff 6 Comment
  SBBG52991  Epilobium J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  JEPS39238  Epilobium brachycarpum W. L. Jepson 1932-8-9 16358 Humboldt Bull Creek Redwood Creek 106 Comment
  POM225520  Epilobium brachycarpum P. A. Munz 1936-8-13 14381 Humboldt 10 miles west of Willow Creek. Comment
  HSC32948  Epilobium ciliatum subsp. ciliatum Thomas W. Nelson, James Nelson 1973-5-28 958 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC48320  Epilobium ciliatum subsp. ciliatum Brad Klipfel 1973-8-3 311 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74754  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-6 2398 Humboldt Near Humbug Creek 1256 Comment
  UC1197003  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1920-8-15 5388 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC146138  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1909-8-15 3075 Humboldt Immediate vicinity of Eureka 0 Comment
  RSA225519  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-13 14380 Humboldt 10 miles west of Willow Creek. Comment
  HSC103258  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-11 Humboldt Six Rivers National Forest, Trinity Mountain Quad, Lower Trinity District, Tish Tang Creek. 1311 Comment
  HSC23493  Epilobium ciliatum subsp. watsonii R. A. Vanbianchi 1971-9-10 84 Humboldt Along Fieldbrook Rd. .7 mi. from Jct. with old Hwy. 299 Comment
  HSC95397  Epilobium ciliatum subsp. watsonii Andrea Pickart 2002-7-9 171 Humboldt Bracut Marsh 0 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
  HSC102565  Epilobium glaberrimum subsp. glaberrimum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1552 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  JEPS31498  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1936-8-7 15102 Humboldt head of Little Hors-Linto Creek Trinity Summit 1524 Comment
  UC583070  Epilobium minutum P. A. Munz 1936-8-13 14382 Humboldt 10 mi w Willow Creek Comment
  UC249614 Image available Epilobium septentrionale Joseph P. Tracy 1921-8-21 5942 Humboldt Mouth of South Fork of Trinity River; Northern Coast Ranges; Humboldt Co. 152 Comment
  HSC16602  Epipactis gigantea J. Wendell Howe 1931-6-18 Humboldt Redway Comment
  CAS-BOT-BC58018  Equisetum Doris K. Kildale 1929-3-16 6939 Humboldt Bug Creek - Chaparral Mt. Comment
  HSC44045  Equisetum arvense Thomas W. Nelson, Jane Nelson 1977-7-1 3551 Humboldt Along N side of ridge between Bear and Blanket Creeks. 1494 Comment
  UC1239790  Equisetum laevigatum Joseph P. Tracy 1931-3-26 9292 Humboldt near Alton (river bar of Van Duzen River); Northern Coast Region 30 Comment
  CAS-BOT-BC57788  Equisetum telmateia Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley. Comment
  RSA175140  Equisetum telmateia var. braunii R. F. Thorne 1957-9-2 18995 Humboldt Burlington State Park, just S of Weott. Comment
  HSC89505  Erechtites glomeratus M. Roantree 1985-6-10 83 Humboldt East side of Trinidad Head Comment
  HSC81904  Eremogone congesta Thomas W. Nelson 1979-7-11 4994 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC58927  Erica Wilma Follette 2002-2-9 s.n. Humboldt Along east side of Highway 101, near Patrick's Point State Park Comment
  RSA145330  Erica lusitanica T. C. Fuller 1961-3-22 5938 Humboldt Humboldt County: N slope Humboldt Hill Comment
  UC204831  Erigeron biolettii Joseph P. Tracy 1918-7-6 5052 Humboldt near Humboldt-Mendocino County line (rock ledges along river); South Fork Eel River 152 Comment
  HSC75411  Erigeron foliosus var. confinis J. O. Sawyer, M. A. Ericksen 1980-7-7 3573 Humboldt Slopes along Aikens Creek, Adroni Research Area 457 Comment
  JEPS21937  Erigeron foliosus var. confinis Joseph P. Tracy 1935-6-23 13967 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC300680  Erigeron foliosus var. mendocinus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC594158  Erigeron glaucus S. K. Harris 1936-6-15 3380 Humboldt Trinidad Head. Comment
  UC581715  Erigeron inornatus var. inornatus Joseph P. Tracy 1933-8-6 12935 Humboldt French Camp Ridge 1066 Comment
  HSC58125  Erigeron klamathensis Gilbert Muth 1979-8-1 12111 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1878 Comment
  HSC74492  Erigeron klamathensis M. A. Baker 1980-7-24 3208 Humboldt Near Orleans Mtn. 1625 Comment
  RSA0010343  Erigeron klamathensis Joseph P. Tracy 1937-7-24 15515 Humboldt Trinity Summit, 2 miles SE of Devil's Hole. 1585 Comment
  NY688658  Erigeron maniopotamicus T. W. Nelson 2004-6-18 9253 Humboldt Board Camp Mountain Road, off Forest Service Road 49N38, 1 mile from junction with Forest Service Road 1. 1481 Comment
  HSC104433  Erigeron maniopotamicus Bianca Hayashi 2013-6-11 Humboldt Twin Lakes area, north of Board Camp Mountain 1280 Comment
  HSC38089  Erigeron philadelphicus Thomas W. Nelson, James Nelson 1976-5-30 2610 Humboldt McKeown Ranch N of Dinsmore Comment
  SEINET9351061  Erigeron philadelphicus Unknown 1935-5-22 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
  SEINET11851213  Erigeron strigosus J. P. Tracy 1950-1 19046 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  CAS-BOT-BC224255  Eriodictyon californicum Doris K. Kildale 1925-6-21 747 Humboldt Briceland Bridge 1/2 mi. west of Garberville 114 Comment
  HSC32328  Eriogonum compositum var. compositum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5669 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  JEPS57408  Eriogonum compositum var. compositum L. R. Heckard with T. I. Chuang 1968-7-5 1989 Humboldt 4 1/2 mi n along Mail Ridge road Harris Road (e of Garberville) Comment
  CAS-BOT-BC259156  Eriogonum latifolium Ira L. Wiggins 1930-7-11 4680 Humboldt Near Samoa Comment
  HSC16903  Eriogonum latifolium J. Wendell Howe 1932-9-28 928 Humboldt Samoa Comment
  CAS-BOT-BC259160  Eriogonum latifolium H. N. Bolander 1866-1-1 6569 Humboldt Collected on State Survey. Shelter Cove Comment
  RSA393623  Eriogonum latifolium Charlotte M. Hoak 1931-7-14 s.n. Humboldt Above Eureka. Comment
  HSC55268  Eriogonum nudum Overton, Butler 1979-8-2 12638 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC103088  Eriogonum nudum var. nudum Sydney Carothers 2014-6-22 5 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  CAS-BOT-BC261729  Eriogonum nudum var. oblongifolium Alice Eastwood 1923-8-16 12328 Humboldt Carlotta Comment
  CAS-BOT-BC261728  Eriogonum nudum var. oblongifolium Carl B. Wolf 1937-9-8 9300 Humboldt North Coast Range, Bull Creek - Petrolia Road, 11 mi. W. of Redwood Highway 304 Comment
  SEINET11938137  Eriogonum nudum var. oblongifolium J. P. Tracy 1950-1 19373 Humboldt Slat Creek Comment
  HSC100600  Eriogonum umbellatum Carl C. Marshall Jun 1885 22 Humboldt S Fork Mtn. summit Comment
  JEPS56193  Eriogonum umbellatum var. argus W. L. Jepson 1902-7-25 2119 Humboldt Trinity Summit Comment
  HSC39231  Eriogonum umbellatum var. nelsoniorum D. E. Anderson, J. P. Smith 1971-7-6 - 1281 Humboldt Horse Mtn. Comment
  UC1198155  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1917-9-2 4841 Humboldt Grouse Mountain Northern Coast Ranges, Grouse Mountain 1524 Comment
  HSC63845  Eriogonum umbellatum var. umbellatum M. A. Baker 1979-6-26 913 Humboldt S facing ridge Comment
  HSC40976  Eriophorum crinigerum J. O. Sawyer 1970-6-24 2216 Humboldt Big Hill Rd., E of Hoopa 1189 Comment
  HSC32327  Eriophyllum lanatum var. achilleoides D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5668 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC1223133  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1950-5-24 18696 Humboldt Cummings Post Office Comment
  UC90307  Eriophyllum lanatum var. achilleoides W. W. Price 1890-7-1 Humboldt Mad River Comment
  POM358028  Eriophyllum lanatum var. aphanactis Thomas W. Nelson, Jane P. Nelson 1977-7-1 3579 Humboldt Head of North Fork of Conley Creek, W side of road N from Alder Spring. 1463 Comment
  UC204867  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1918-7-21 5082 Humboldt Humboldt Hill Northern Coast Ranges of California, Humboldt Hill 152 Comment
  HSC67463  Eriophyllum lanatum var. grandiflorum J. P. Smith, Steve Selva 1970-6-14 3820 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  RSA21076  Eriophyllum lanatum var. integrifolium C. B. Wolf 1937-8-13 9236 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC26363  Erodium cicutarium T. O. Osborne 1970-5-24 87 Humboldt Flat-iron Rock, 3/4 mi. NW Trinidad Lighthouse Comment
  UC1198964  Erodium moschatum Joseph P. Tracy 1918-4-21 4885 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC100485  Erodium moschatum Carl C. Marshall May 1886 197 Humboldt Yard's etc. Comment
  HSC78966  Erodium moschatum L. P. Janeway 1984-5-16 791 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd., 0.25 mi. N of the boat ramp 3 Comment
  CAS-BOT-BC41575  Erysimum capitatum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain. 1371 Comment
  UC1199177  Erysimum capitatum Joseph P. Tracy 1927-6-12 8149 Humboldt Horse Mountain Northern Coast Ranges 1371 Comment
  CAS-BOT-BC54919  Erysimum menziesii Joseph P. Tracy 1904-4-24 2031 Humboldt Ocean Beach at Humboldt Bay. Comment
  HSC26313  Erysimum menziesii Thomas W. Nelson 1971-4-16 383 Humboldt Near Samoa coast Guard Station. Comment
  UC1197644  Erythronium californicum Joseph P. Tracy 1913-6-17 4184 Humboldt near summit; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC1197648  Erythronium californicum Joseph P. Tracy 1927-6-12 8127 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  RSA168934  Erythronium californicum Joseph P. Tracy 1950-4-20 18616 Humboldt Buck Mountain, lower foothills of its northwest slope. 2 miles west of Dinsmores. 762 Comment
  HSC15487  Erythronium citrinum var. citrinum R. A. Rasp 1964-4-5 29 Humboldt 7 mi. past Hoopa on Willow Creek Rd. Comment
  HSC15488  Erythronium citrinum var. citrinum E. C. Murczek 1964-4-4 29 Humboldt 8 mi. N of Hoopa Comment
  JEPS503  Erythronium grandiflorum Joseph P. Tracy 1933-7-16 12774 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  JEPS88924  Erythronium revolutum Harley P. Chandler Jun 1901 1279 Humboldt Hupa Indian Reservation 1066 Comment
  UC184948  Eschscholzia californica Joseph P. Tracy 1912-7-21 3765 Humboldt Alton Northern Coast Region 30 Comment
  UC1222567  Eschscholzia californica Joseph P. Tracy 1950-6-8 18750 Humboldt Devil's Gate Cape Mendocino (s of point of Cape) 3 Comment
  POM160277  Eschscholzia californica var. crocea Joseph P. Tracy 1926-5-15 7485 Humboldt Kneeland Prairie, North Coast Ranges 762 Comment
  UC205151  Eucephalus tomentellus Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between three Creeks and mouth of Willow Creek Willow Creek 914 Comment
  CAS-BOT-BC310490  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  CAS-BOT-BC310495  Euchiton sphaericus John Thomas Howell 1936-8-29 12888 Humboldt Eel River 16 miles n. of Garberville Comment
  BLMAR291  Euonymus occidentalis var. occidentalis Jennifer Anthony-Wheeler 2001-6-19 291 Humboldt Headwaters Forest Reserve, growing shaded streambank by ' babbits ridge ' 335 Comment
  UC1199005  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1906-6-10 2473 Humboldt headwaters of Freshwater Creek near Kneeland Prairie; Northern Coast Ranges, Freshwater Creek 457 Comment
  UC165820  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1911-9-3 3539 Humboldt 1 mi. s.e. Eureka; Northern Coast Region 0 Comment
  HSC25940  Euthamia occidentalis Thomas W. Nelson 1970-10-31 295 Humboldt Eel River near N end of the Scotia Bluff. Comment
  HSC96234  Festuca californica Sara March , Gillian Levy 2005-6-3 6 Humboldt 19.3 mi S of Hwy 299 on NF1 1240 Comment
  UC1145208  Festuca californica Joseph P. Tracy 1938-6-13 15903 Humboldt Horse Mountain 1432 Comment
  HSC98829  Festuca californica var. californica Cara Witte 2007-5-21 70 Humboldt White Oak Opening. 1257 Comment
  RSA10135  Festuca idahoensis Joseph P. Tracy 1933-7-25 12890 Humboldt Grouse Mountain, North Coast Ranges 1524 Comment
  HSC40969  Festuca occidentalis Linda M. Barker 1976-6-14 1598 Humboldt 3 mi. W of Arcata Comment
  HSC74474  Festuca occidentalis Gail Newton 1980-7-23 1752 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC9950  Festuca occidentalis E. W. Styskel 1964-5-8 83 Humboldt 2 mi. W of Rio Dell on Blue Slide Rd. Comment
  UC70923  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5362 Humboldt near Harris Comment
  UCD66132  Festuca occidentalis A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3466 Humboldt 2 miles west of Bridgeville, banks above Van Dusen River. Comment
  UCD66138  Festuca occidentalis A. H. Murphy 1951-6-25 70 Humboldt Snow Camp meadow, ca. 8 miles e.n.e. of Kneeland. 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
  CAS-BOT-BC278960  Festuca rubra David D. Keck 1948-7-1 5970 Humboldt South side of Big Lagoon Comment
  CAS-BOT-BC278965  Festuca rubra Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC83339  Festuca rubra Andrea Pickart 1987-6-26 Humboldt Arcata, Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata. Comment
  HSC95257  Festuca rubra Andrea Pickart 2002-7-3 152 Humboldt Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  RSA126621  Festuca rubra H. S. Yates 1936-6-16 5665 Humboldt 1 mile SW of Samoa. 6 Comment
  UC1103704  Festuca subulata Joseph P. Tracy 1936-6-17 14945 Humboldt nw slope Buck Mountain 792 Comment
  UC1103708  Festuca subulata Joseph P. Tracy 1921-4-17 5429 Humboldt Alton Northern Coast Ranges 30 Comment
  UC1145204  Festuca subulata Joseph P. Tracy 1936-6-9 14903 Humboldt 4 mi se Petrolia; Northern Coast Ranges, Mattole Valley 60 Comment
  HSC27562  Fragaria X ananassa J. D. Ackerman, A. M. Montalvo 1973-3-27 39 Humboldt 1.5 mi. N of Manila Comment
  CAS-BOT-BC453516  Fragaria chiloensis W. R. Dudley 1899-6-1 s.n. Humboldt Pennisula of Eureka Comment
  HSC18611  Fragaria vesca J. C. Reppas 1963-4-11 37 Humboldt 820 Fickle Hill Rd. Comment
  JEPS44683  Fragaria vesca Lincoln Constance 1934-6-8 841 Humboldt Cow Creek fire trail South Fork Eel River, Bull Creek Region (from Bull Creek road, n over divide into the headwaters of Bear Creek) 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
  SBBG26931  Frangula californica subsp. californica D. K. Kildale 1927-7-3 Humboldt Willow Crk flat on Trinity River 152 Comment
  HSC18415  Frangula purshiana G. B. Kendall 1965-5-8 7 Humboldt 1.0 mi S of Trinidad on Hwy. 101 Comment
  CAS-BOT-BC217693  Fraxinus latifolia M. S. Jussel 1931-5-1 s.n. Humboldt Sylvandale, 8 mi. N of Garberville Comment
  SDSU19198  Fritillaria affinis Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3008 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.2 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  UC1225860  Fritillaria affinis Joseph P. Tracy 1947-4-27 17674 Humboldt Table Bluff, on Tompkins Hill Road Table Bluff; , Tompkins Hill Road 152 Comment
  UC179931  Fritillaria affinis Joseph P. Tracy 1914-5-3 4419 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC98536  Fritillaria glauca Cara Witte 2008-6-9 698 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  RSA46688  Fritillaria purdyi Doris K. Kildale 1938-6-5 15397 Humboldt Horse Mountain Comment
  HSC100641  Galium aparine Carl C. Marshall Jul 1887 402 Humboldt Humboldt. Comment
  HSC26464  Galium aparine T. O. Osborne 1970-5-17 17 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  HSC57323  Galium bolanderi Overton, Butler 1979-7-24 9555 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  RSA47104  Galium californicum Doris K. Kildale 1925-7-19 1053 Humboldt Bridgeville. 290 Comment
  JEPS52864  Galium californicum subsp. californicum Lauramay T. Dempster and Jean Colton 1963-8-7 3889 Humboldt Redwood Hwy (101) just n Richardson Grove Comment
  JEPS52838  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3860 Humboldt 2.3 mi s Weott; Avenue of The Giants 60 Comment
  RSA245002  Galium nuttallii William J. Ferlatte, B. D. Rogers 1966-6-15 2092 Humboldt Near Bridgeville. Comment
  HSC53836  Galium triflorum Griswold, Butler 1979-7-10 6286 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC58153  Galium triflorum G. L. Clifton, Griswold 1979-8-2 12205 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC28245  Galium triflorum Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC154051  Garrya elliptica J. P. Tracy 1901-1-27 990 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  CAS-BOT-BC182168  Garrya fremontii Joseph P. Tracy 1932-3-6 9773 Humboldt Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC182169  Garrya fremontii Henry M. Pollard 1946-9-1 s.n. Humboldt Near Willow Creek, Orleans region Comment
  CAS-BOT-BC182170  Garrya fremontii Doris K. Kildale 1926-3-21 1588 Humboldt McDowell Butte, Kneeland Prairie 914 Comment
  OBI35859  Garrya fremontii David J. Keil 1983-7-2 17336 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  UCSB4685  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek; within Hoppe Indian Reservation; upstream from Willow Creek Village. Comment
  UCD66582  Gastridium phleoides P. B. Kennedy 1923-8-5 26 Humboldt West fork of Eel River between Phillipsville and Garberville. Comment
  JEPS71220  Gastridium ventricosum W. L. Jepson 1936-8-7 17855 Humboldt Upper Butte Creek Bear Buttes; , Bear Buttes Comment
  HSC53968  Gaultheria ovatifolia Griswold, Butler 1979-7-11 7025 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  CAS-BOT-BC58922  Gaultheria shallon L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  JEPS66612  Gaultheria shallon Lincoln Constance 1934-5-31 751 Humboldt n side of (along) Bull Creek, w boundary of Park to Grasshopper Peak (Squaw Creek) Road, South Fork Eel River Bull Creek; Bull Creek Region, South Fork Eel River, Bull Creek Comment
  SD51255  Gaultheria shallon Darley F. Howe 1961-8-1 3106 Humboldt 6.0 miles north of Trinidad on Highway 101. Comment
  UC719770  Gaultheria shallon Rogers McVaugh 1941-8-3 6219 Humboldt 1 1/4 mi s of Headquarters of Patrick's Point State Park Comment
  HSC55051  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-31 11582 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa Comment
  UC505121  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1932-7-11 10401 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC14676  Genista monspessulana Paul Shields 1953-9-23 Humboldt 5 mi. SE of Arcata Comment
  SDSU7758  Genista monspessulana Leslie Hickson 1990-4-18 15 IV90B Humboldt Oak Street 0.3 miles north of Freshwater school. Left sid of the road ca. 20 feet from the shoulder of the road. Eureka. Comment
  JEPS47022  Gentiana sceptrum Joseph P. Tracy 1924-8-3 6768 Humboldt Northern Coast Region, Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  RSA69772  Gentiana sceptrum R. S. Woglum 1938-8-29 2038 Humboldt Trinidad Comment
  UC275299  Gentiana sceptrum R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  UC502970  Geranium carolinianum Joseph P. Tracy 1927-5-8 7959 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Region Comment
  JEPS61428  Geranium dissectum Lincoln Constance 1934-6-7 833 Humboldt Johnson Prairie South Fork Eel River, Bull Creek Region Comment
  HSC79375  Geranium dissectum Kenneth Clark 1980-5-10 647 Humboldt Access trail to West beach, coastal bluffs of Point Delgada 9 Comment
  HSC59668  Geranium molle George Kirn 1977-10-15 Humboldt Eureka, Q and 3rd St. 12 Comment
  HSC59612  Geum macrophyllum J. P. Smith, Steve Selva 1970-6-30 4121 Humboldt Comment
  SEINET6969928  Gilia capitata Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  UC1222733  Gilia capitata subsp. capitata Joseph P. Tracy 1950-6-15 18789 Humboldt 7 mi n Harris (Mail Ridge); n of Harris, Mail Ridge Comment
  JEPS69517  Gilia capitata subsp. capitata Lincoln Constance 1934-5-23 621 Humboldt sw slope upper end Look Prairie (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River, Look Prairie 365 Comment
  BLMAR433  Gilia capitata subsp. pacifica Jennifer Anthony-Wheeler 2008-6-13 433 Humboldt King range, growing in Prosper Prairie near hdwaters of Mill Creek 624 Comment
  CAS-BOT-BC226156  Gilia capitata subsp. pacifica Doris K. Kildale 1927-5-15 3168 Humboldt Back of Cape Mendocino Comment
  HSC95157  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1990 Humboldt E side headwaters of Brushy Creek 800 Comment
  RSA63402  Gilia capitata subsp. pacifica C. B. Wolf 1939-7-8 9519 Humboldt Devil's Gate, south of Cape Mendocino. 8 Comment
  UC907896  Gilia capitata subsp. pacifica J. P. Tracy and H. E. Parks 1930-5-25 793 Humboldt near Bridgeville; near Bridgeville Comment
  BLMAR606  Gilia millefoliata Jennifer Wheeler 2011-4-1 606 Humboldt King range, growing throughtout the Mattole beach dune area Comment
  CHSC52941  Gilia millefoliata L. P. Janeway 1984-4-11 731 Humboldt On the North Spit of Humboldt Bay; Northwest of the boat ramp and north of the Coast Guard Sta. 4 Comment
  HSC16984  Gilia millefoliata R. J. Vernimen 1963-5-11 45 Humboldt Clam Beach Lagoons, 10 mi. N of Arcata Comment
  HSC95545  Gilia millefoliata Andrea Pickart 2002-5-13 101 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  RSA150803  Gilia millefoliata D. E. Breedlove 1962-6-7 3041 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UC1197920  Gilia tricolor subsp. diffusa Joseph P. Tracy 1948-5-31 18016 Humboldt Alder Point 304 Comment
  UC906684  Gilia tricolor subsp. tricolor Joseph P. Tracy 1942-5-16 17340 Humboldt Garberville 152 Comment
  UC1602182  Githopsis specularioides Harley P. Chandler Jun 1901 1345 Humboldt Hupa Reservation North Coast Ranges 152 Comment
  UC177194  Githopsis specularioides Joseph P. Tracy 1913-6-19 4207 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET10464629  Githopsis specularioides Tracy 1903-5-23 TRACY 1906 Humboldt Alder Point, on Eel River 152 Comment
  SEINET10873073  Githopsis specularioides Tracy 1908-6-9 TRACY 2655 Humboldt Kneeland Prairie 762 Comment
  UC1223069  Glebionis segetum Joseph P. Tracy 1950-6-17 18831 Humboldt at Eureka Comment
  CAS-BOT-BC218426  Glehnia littoralis subsp. leiocarpa J. Clausen 1935-6-16 3386 Humboldt Mouth of Little River Comment
  HSC62745  Glehnia littoralis subsp. leiocarpa J. M. DiTomaso 1979-5-20 1050 Humboldt Sand at Big Lagoon Park, 8 mi. N of Trinidad Comment
  RSA246750  Glehnia littoralis subsp. leiocarpa R. F. Thorne, P. Everett 1965-8-7 35218 Humboldt Samoa Peninsula. 3 Comment
  UC1197366  Glehnia littoralis subsp. leiocarpa Hattie F. Tracy 1902-6-17 1748 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  UC1145104  Glyceria grandis Joseph P. Tracy 1936-6-28 15024 Humboldt Lake Prairie; Bald Mountain 1066 Comment
  UC526909  Glyceria striata Joseph P. Tracy 1925-6-13 7086 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC630459  Gnaphalium palustre H. E. and S. T. Parks 1937-7 24026 Humboldt Spruce Cove Northwestern California, Trinidad, Spruce Cove Comment
  CDA6019  Gnaphalium palustre E. C. Whitney 1961-7-2 Humboldt A. Hartman property, McKinnleyville. 0 Comment
  HSC5711  Gnaphalium palustre Jerry Parker 1968-9-24 74 Humboldt Mckinleyville beach Comment
  UC1199345  Gnaphalium palustre Joseph P. Tracy 1930-7-17 9005 Humboldt meadow McKay Camp; South Fork Mountain, McKay Camp 1676 Comment
  RSA638984  Gnaphalium stramineum Percy C. Everett 1965-8-6 35171 Humboldt Samoa Dunes. 3 Comment
  HSC36646  Goodyera oblongifolia J. D. Ackerman 1975-9-15 742 Humboldt Arcata, behind Fern Ln. E of Humboldt State University Comment
  HSC2216  Grindelia hirsutula J. T. Howell 1937-7-31 13720 Humboldt Humboldt Bay at Arcata Comment
  HSC5698  Grindelia hirsutula D. E. Anderson 1962-7-15 2270 Humboldt Big Lagoon Comment
  JEPS35820  Grindelia hirsutula Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8967 Humboldt 9.5 mi by road nw Petrolia (s of Cape Mendocino, in coastal scrub just back of beach) Comment
  POM160899  Grindelia hirsutula var. davyi Joseph P. Tracy 1918-7-7 5038 Humboldt Near Garberville. 122 Comment
  POM161906  Grindelia stricta var. stricta Joseph P. Tracy 1921-7-10 5856 Humboldt Big Lagoon. 6 Comment
  HSC31453  Hackelia bella D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5571 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  JEPS55579  Hackelia californica Joseph P. Tracy 1932-7-12 10428 Humboldt at Corral Prairie Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC1239635  Hackelia californica Joseph P. Tracy 1936-8-8 15126 Humboldt on Ridge 2 mi e of Groves Prairie; Trinity Summit 1524 Comment
  HSC30151  Hemitomes congestum Kennith Irwin 1973-5-31 Humboldt Patrick's Point. Bulk Collection 80 Comment
  HSC40554  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1976-5-23 2520 Humboldt SW facing slopes 1666 Comment
  CAS-BOT-BC306037  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1925-7-12 7200 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 304 Comment
  HSC35622  Hemizonia congesta subsp. clevelandii Thomas W. Nelson, B. Reinhardt 1975-7-30 2123 Humboldt Beside private road to Pilot Rock Comment
  CAS-BOT-BC309990  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1937-7-19 15456 Humboldt Buck Mountain, lower foothills of its northwest slope 914 Comment
  CAS-BOT-BC309995  Hemizonia congesta subsp. tracyi Carl B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  HSC35966  Hemizonia congesta subsp. tracyi Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-21 1950 Humboldt Beside Hwy. 36 ca. 5 mi. E of Bridgeville Comment
  JEPS14231  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad R. 15 Comment
  UC582500 Image available Hesperevax acaulis var. robustior Joseph P. Tracy 1932-5-1 9867 Humboldt vicinity of Garberville 121 Comment
  JEPS11793  Heterocodon rariflorum W. L. Jepson 1932-7-24 16394 Humboldt Garberville; Tooey Ranch Comment
  CAS-BOT-BC143655  Heteromeles arbutifolia Doris K. Kildale 1928-7-1 5315 Humboldt Klamath RIver at mouth of Bluff Creek Comment
  JEPS2421  Heterotheca oregona var. oregona W. L. Jepson 1936-8-12 17875 Humboldt Philipsville, gravel bars and lowest terrace of South Fork Eel River South Fork Eel River Comment
  CAS-BOT-BC311080  Heterotheca oregona var. rudis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC165075  Heterotheca oregona var. rudis Joseph P. Tracy 1908-6 2924 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  OBI76849  Heterotheca oregona var. rudis J. C. Semple & S. Heard, S. Heard 1986-8-18 8531 Humboldt Garberville. Gravel bar of S fork of Eel River near US 101 at Bear Cyn Rd Comment
  HSC74179  Heuchera merriamii M. A. Baker 1980-7-23 3176 Humboldt Near Orleans Mtn. 1859 Comment
  HSC71159  Heuchera micrantha Thomas W. Nelson 1977-6-15 3423 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  HSC8624  Heuchera micrantha Jack Rockwell 1962-4-29 34 Humboldt S Bank of Van Duzen River, E of Hwy. 101 9 Comment
  RSA0063136  Heuchera micrantha var. hartwegii Marcus E. Jones 1924-4-28 s.n. Humboldt Dyerville. Comment
  HSC48848  Hieracium albiflorum Brad Klipfel 1973-7-15 204 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 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
  RSA32658  Hieracium albiflorum Doris K. Kildale 1927-7-17 3752 Humboldt Bug Creek, Chaparral Mountain Comment
  CAS-BOT-BC312385  Hieracium albiflorum Kenneth Clark 1980-6-14 687 Humboldt North fork Dead Man's Gulch, Shelter Cove 106 Comment
  UC1299270  Hieracium greenei Freed W. Hoffman 1949-7-15 3010 Humboldt a little s of Blue Ridge; Mt. Lassic Comment
  CDA28238  Hierochloe occidentalis Wilma Mae Lowary & Norah van Kleeck 1974-8-8 Humboldt Lady Bird Johnson Grove, Redwood National Park, northeast of Orick. 0 Comment
  HSC90661  Hippuris vulgaris Gail Newton 1982-6-10 3638 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC28191  Hippuris vulgaris John R. Keith 1973-5-15 Humboldt Abandoned log pond about 200 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  UC198615  Hippuris vulgaris Joseph P. Tracy 1917-5-30 4807 Humboldt near mouth of Little R.; Northern Coast Ranges 6 Comment
  HSC27024  Holcus lanatus Brad W. Klipfel 1973-8-17 273 Humboldt Big Lagoon Park, at the Sphagnum bog. Comment
  UC38600  Holcus lanatus Harley P. Chandler May 1901 1118 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  UCD84972  Holcus lanatus Joseph P. Tracy 1949-7-6 18330 Humboldt Eureka. 30 Comment
  HSC41306  Holodiscus discolor Brad Klipfel 1974-7-23 469 Humboldt Horse Mtn., on the NE side of the ridge. Comment
  RSA183531  Holodiscus discolor D. E. Anderson 1963-9-1 2806 Humboldt Near Kneeland. 732 Comment
  UC1043493  Holodiscus discolor E. K. Balls 1954-5-25 19387 Humboldt 6.3 mi s of Ferndale (North Coast Range, Wild Cat Ridge); North Coast Range, Wild Cat Ridge Comment
  UC154228  Holodiscus discolor Joseph P. Tracy 1908-6 2927 Humboldt opposite of Buck Mountain (Northern Coast Ranges, Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET10771149  Holodiscus discolor J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13011 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  HSC10163  Hordeum brachyantherum D. J. McVean 1965-5-22 85 Humboldt In field W of Jackson Rd., 1/4 mi N of Samoa Blvd. Comment
  HSC74183  Hordeum brachyantherum M. A. Baker 1980-7-22 3108 Humboldt Near Grogan Hole. 1676 Comment
  UC1103485  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1950-6-17 18832 Humboldt edge of salt marsh at Eureka Slough (Eureka); , Eureka Slough 3 Comment
  SEINET200844 Image available Hordeum jubatum Joseph P. Tracy 1927-7-16 8249 Humboldt Mouth of Elk River. 3 Comment
  HSC26777  Hordeum marinum subsp. gussoneanum Thomas W. Nelson 1971-5-31 464 Humboldt 915 Comment
  HSC10223  Hordeum murinum subsp. glaucum E. W. Styskel 1964-4-12 67 Humboldt Corner of Center St. and Hwy. 101 in Rio Dell. 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
  SEINET10841409  Horkelia californica Lincoln Constance, Alan A. Beetle; Joseph P. Tracy 1940-5-17 Constance 2613 Humboldt Branches reddish, ascending, petals white. With amelanchier and prunus, Serpentine? Soil of openings in cutover pinus ponderosa, pseudotsuga, quercus Garryana forest. Larrabee valley 762 Comment
  UC1198716  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1933-6-13 12593 Humboldt near summit (on rd w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mt. 914 Comment
  UC1198719  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1908-7-24 2916 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  CAS-BOT-BC537962  Horkelia tridentata var. flavescens J. D. Ackerman 1975-6-18 472 Humboldt Big Hill rd. ca. 10.4 mi. E. of Hoopa and Hwy. 96. Comment
  HSC70236  Hydrophyllum occidentale M. A. Baker 1980-6-8 1899 Humboldt Near Buck Flat. 1554 Comment
  HSC74204  Hydrophyllum occidentale M. A. Baker 1980-7-19 3007 Humboldt Near Bret Hole. 1814 Comment
  HSC98762  Hydrophyllum occidentale Cara Witte 2008-7-2 823 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  HSC13557  Hydrophyllum occidentale H. E. Parks, J. P. Tracy 1935-6-16 Humboldt Buck Mtn. Comment
  SBBG28785  Hydrophyllum occidentale L. Constance, A. A. Beetle, J. P. Tracy 1940-5-17 2618 Humboldt lower slopes of Buck Mtn near Eureka 792 Comment
  HSC23741  Hypericum anagalloides Tim Baroni 1971-6-25 54 Humboldt 8 mi. E of Petrolia Comment
  CAS-BOT-BC411326  Hypericum calycinum Robert F. Thorne; P. Everett 1965-8-9 35315 Humboldt Clam Beach County Park 3 Comment
  UC1137469  Hypericum perforatum Hubert Person 1941-5-24 25323 Humboldt just n. Garberville; Briceland Quad., CA Forest & Range Expt. Station 152 Comment
Read comments
Sep 12 2009
  UC909470  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt ca. 1/2 mi. n. Orleans (near Klamath R.) 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
  UC166804  Hypochaeris radicata J. P. Tracy 1909-7-4 3007 Humboldt immediate vicinity Eureka 0 Comment
  JEPS67378 Image available Iliamna latibracteata Joseph P. Tracy 1939-7-23 16350 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
  UC1103805  Ionopsidium acaule Joseph P. Tracy 1933-3-12 10919 Humboldt Ferndale, St. Mary's Cemetery Ferndale; North Coast Ranges, , St. Mary's Cemetery 15 Comment
  JEPS17223  Iris douglasiana W. L. Jepson 1934-5-7 16713 Humboldt Buckeye Prairie; Bull Creek Comment
  JEPS17218  Iris douglasiana Milo S. Baker 1923-7-31 157 a Humboldt Lawrence Creek; central Humboldt County Comment
  UCSB879  Iris douglasiana Phillips, Priscilla 1958-6-7 Humboldt At entrance to Big Lagoon Park; North of Trinidad Comment
  JEPS86127  Iris macrosiphon Wayne Roderick 1966-5-5 Humboldt ca 5 mi n Bridgeville 609 Comment
  RSA290855  Iris missouriensis Lyman Benson 1928-7-11 383 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  BLMAR624  Iris purdyi Jennifer Wheeler 2011-6-1 624 Humboldt Lacks Creek, Bair rd near pickle springs 609 Comment
  BLMAR99  Iris purdyi Jennifer Anthony-Wheeler 1994-6-8 99 Humboldt Red Mountain, growing among chapparel above bog 1097 Comment
  SEINET3876004  Iris purdyi Rimo C. Bacigalupi, William Constance; S. M. Tracy; R. Moran; R. L. Rodriguez; S. Carlquist 1951-6-14 3414 Humboldt Under forest in meadow about Snow Camp. Ridge between Mad River and Redwood Creek, Bald Mountain.; 0 1433 Comment
  CAS-BOT-BC123369  Iris tenax subsp. klamathensis Lee W. Lenz 1953-5-13 18296 Humboldt along Klamath River, Orleans 121 Comment
  UC673161  Iris tenax subsp. klamathensis Lincoln Constance and Reed C. Rollins 1942-5-12 2893 Humboldt 2 mi. n. Orleans (Klamath River); Klamath-Siskiyou Region, Klamath River 121 Comment
  HSC101964  Iris tenuissima M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 859 Humboldt Patterson Meadows 1566 Comment
  HSC74329  Iris tenuissima M. A. Baker 1980-6-16 1958 Humboldt Near Onion Mtn. 1280 Comment
  HSC44786  Iris tenuissima Maralyn O'Meara 1972-6-8 96 Humboldt Along Bald Hills Rd., 8 mi. E of junction with Hwy. 101 Comment
  HSC49284  Iris tenuissima J. O. Sawyer 1977-4-23 2839 Humboldt On road to Fish Lake Comment
  RSA135923  Iris tenuissima Lee W. Lenz 1953-5-17 18318 Humboldt Crawford Creek, just below Orleans 122 Comment
  UC429166  Iris tenuissima P. E. Goddard 1907-5-29 103 Humboldt Van Duzen Comment
  RSA183615  Isatis tinctoria D. E. Anderson 1965-5-1 3569 Humboldt Slides along Hwy 96 and Klamath River about 3-4 miles E of Weitchpec. Comment
  RSA273404  Isatis tinctoria J. P. Smith, J. O. Sawyer 1974-6-2 7649 Humboldt Below Berry Summit on old State Route 299. 762 Comment
  HSC97440  Isolepis cernua Ivy Watson 2008-10-11 53 Humboldt N of river mouth, along small tributary E of sand dunes 4 Comment
  RSA170275  Isolepis setacea Joseph P. Tracy 1917-6-17 4817 Humboldt Salmon Creek Valley, around Humboldt Bay. 30 Comment
  HSC38446  Jaumea carnosa J. P. Smith 1976-7-3 8935 Humboldt Manila, Samoa Peninsula Comment
  UC668200  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt mouth Eel River (salt marsh) 3 Comment
  CHSC96448  Juncus bolanderi Gordon Leppig 1998-8-23 1070 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E 4557202N. 3 Comment
  HSC45436  Juncus bolanderi Thomas W. Nelson, Jane P. Nelson 1978-7-2 4402 Humboldt Wet alluvial soil at Lost Lake 1433 Comment
  UC421841  Juncus breweri J. B. Davy 1899-6-30 6182 Humboldt Ferndale Comment
  HSC13996  Juncus bufonius H. E. Parks Jun 1934 5273 Humboldt Spruce Cove, Trinidad Comment
  HSC13993  Juncus bufonius J. E. Lankila 1962-4-14 6 Humboldt W bank of Eel River across from Shively, 0.25 mi. N of Bear Creek Comment
  RSA15569  Juncus effusus subsp. pacificus Carl B. Wolf 1927-8-28 1190 Humboldt Eureka Bay, on the road to Arcata. Comment
  SD51269  Juncus effusus subsp. pacificus Darley F. Howe 1961-8-2 Humboldt 8.5 miles east of Orick, on Bald Mounatin Road. 609 Comment
  HSC90769  Juncus ensifolius Gail Newton 1982-6-10 3597 Humboldt Elk River Wildlife Area, Eureka Comment
  POM87662  Juncus ensifolius Le Roy Abrams, Rimo C. Bacigalupi 8286 Humboldt Big Lagoon. South of Orick. Comment
  RSA129411  Juncus falcatus subsp. sitchensis H. S. Yates 1936-6-16 5654 Humboldt 1/2 mile southwest of Samoa. 3 Comment
  UC184194  Juncus hemiendytus var. hemiendytus Joseph P. Tracy 1913-6-17 4168 Humboldt near Buck Mountain summit; Northern Coast Ranges 1524 Comment
  JEPS63872  Juncus hesperius Henry Melde 1902-2-8 Humboldt Eureka Comment
  HSC14007  Juncus hesperius Walker 1960-8-16 Humboldt 7 mi., K & K Comment
  HSC14065  Juncus hesperius R. L. Jarvis 1962-4-7 13 Humboldt E of Hwy. 101, 4 mi. S of Eureka 0 Comment
  HSC56989  Juncus laccatus Walter Overton, Marvin Butler 1979-7-23 9552 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  HSC57961  Juncus orthophyllus G. L. Clifton, Griswold 1979-7-31 11662 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  RSA126572  Juncus patens H. S. Yates 1936-6-23 5858 Humboldt 2 miles southeast of mouth of Mad River. 305 Comment
  SDSU11823  Juncus phaeocephalus D. F. Howe 1961-8-1 3111 Humboldt 9 miles noth of Arcata on #101 Comment
  HSC74728  Keckiella corymbosa Gail Newton 1981-7-22 2263 Humboldt Near Bug Creek 1375 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
  UC1193337  Keckiella corymbosa P. Zinke 184 Humboldt 300 yds nw of summit King Peak 1249 Comment
  JEPS11334  Kickxia elatine W. L. Jepson 1936-8-12 17878 Humboldt Phillipsville; South Fork Eel River Comment
  UC162570  Kickxia elatine Joseph P. Tracy 1911-7-11 3508 Humboldt Hoopa Valley; Northern Coast Ranges 152 Comment
  UC38697  Koeleria macrantha Harley P. Chandler June 1901 1342 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 304 Comment
  UC1196121  Kopsiopsis strobilacea Joseph P. Tracy 1918-5-28 4936 Humboldt Northern Coast Ranges. High Prairie on Bald Mountain, High Prairie and Redwood Creek. Comment
  UC552314  Lactuca biennis Joseph P. Tracy 1934-8-14 13583 Humboldt near Myers; North Coast Ranges 60 Comment
  CAS-BOT-BC341442  Lagophylla ramosissima H. M. Hall 1924-8-10 12081 Humboldt Van Duzen River, near Carlotta Comment
  POM56119  Lapsana communis Joseph P. Tracy 1918-6-23 4957 Humboldt Around Humboldt Bay: Outskirts of Arcata. 61 Comment
  JEPS10074  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-26 10265 a Humboldt Valley of South Yager Creek 762 Comment
  UC1199131  Lasthenia californica subsp. californica Joseph P. Tracy 1922-4-30 6028 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1199082  Lathyrus jepsonii var. californicus Joseph P. Tracy 1936-6-17 14964 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  HSC14738  Lathyrus littoralis Norman H. Moe 1962-5-3 Humboldt Lanphere's Place Comment
  UCD106374  Lathyrus littoralis Linda M. Barker 1976-4-30 1409 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD106378  Lathyrus littoralis Linda M. Barker 1976-6-1 1560 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC14746  Lathyrus littoralis J. W. Johnson 1962-4-18 1259 Humboldt Between the mouth the Mad River and the Hunt Farm, Samoa Peninsula. Comment
  UC495708  Lathyrus polyphyllus Joseph P. Tracy 1932-7-20 10735 Humboldt just w Corral Prairie; Klamath Mountains 1524 Comment
  HSC99442  Lathyrus torreyi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 92 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET12151839  Lathyrus torreyi C. L. Hitchcock 1949-1 19084 Humboldt ca 15miE of Blue Lake, along Hwy 299 Comment
  SEINET12154019  Lathyrus torreyi J. P. Tracy 1943-1 17430 Humboldt Willow Creek Canyon, along Trinity Hwy. East Fork of Willow Creek Comment
  UC1222398  Lathyrus vestitus Joseph P. Tracy 1949-7-4 18327 Humboldt 2 mi e Kneeland (on the Butter Valley Road) 609 Comment
  RSA64951  Lathyrus vestitus subsp. bolanderi C. L. Hitchcock 1949-6-8 19087 Humboldt 1 mile SE of Willow Creek, along Highway #299. Comment
  HSC64139  Lathyrus vestitus subsp. vestitus J. P. Smith, J. O. Sawyer, J. Cole 1977-7-2 3051 Humboldt Rd. 11N17 between Dagsaw Springs and Divide Lake 793 Comment
  RSA405756  Lathyrus vestitus subsp. vestitus Unspecified 1924-7-11 s.n. Humboldt Arcata Comment
  UCD106539  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-7 19081 Humboldt Redwood highway ca. 15 miles N of Garberville. Comment
  HSC39786  Layia carnosa Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  HSC5914  Layia carnosa Francis Winter 1960-5-6 Humboldt Mouth of Mad River. Comment
  SEINET3374979 Image available Lemna minor Joseph P. Tracy 1932-8-21 10370 Humboldt Three Cabins Ranch; on E side of Mad River on W slope of Chaparral Mt. 457 Comment
  UCD133993  Leontodon saxatilis H. S. Reed 1941-7-26 s.n. Humboldt near Trinidad. Comment
  SBBG49010  Leontodon taraxacoides R. N. Philbrick with S. T. Parks 1974-8-28 Humboldt behind beach, along US Hwy 101, S of Orick 76 Comment
  RSA518828  Lepidium Joseph P. Tracy 1933-8-22 12992 Humboldt Mouth of Eel River. 3 Comment
  RSA226612  Lepidium campestre William J. Ferlatte, B. D. Rogers 1966-6-15 2109 Humboldt Larabee Valley. 762 Comment
  HSC26269  Lepidium oblongum Thomas W. Nelson 1971-5-31 448 Humboldt 915 Comment
  CAS-BOT-BC12986  Lepidium virginicum Henry M. Pollard 1946-8-10 s.n. Humboldt South of Klamath River and east of Perch Creek. Orleans Region. Comment
  UC249851  Lessingia nemaclada Joseph P. Tracy 1923-9-10 6546 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC39167  Leucanthemum vulgare D. E. Anderson, J. P. Smith 1971-6-28 - 1236 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC5356  Leucanthemum vulgare H. E. Parks, S. T. Parks Aug 1943 24257 Humboldt Spruce Cove, Trinidad. 61 Comment
  HSC48613  Leucanthemum vulgare Mark Flippo 1978-5-18 63 Humboldt Arcata, US 101 Comment
  CAS-BOT-BC444064  Lewisia leeana Joseph P. Tracy 1935-7-24 14200 Humboldt Trinity Summit. Near Ranger Station 1828 Comment
  HSC101968  Lewisia nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 864 Humboldt Patterson Meadows 1555 Comment
  RSA249391  Lewisia nevadensis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5590 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC102512  Lewisia triphylla M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1498 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UCD64597  Leymus mollis G. L. Stebbins Jr.; G. L. Church 1941-5-26 3105 Humboldt Little River, south of Trinidad. Comment
  UCD87707  Leymus triticoides A. H. Murphy 1951-6-13 63 Humboldt Eel River at Fort Seward. Comment
  JEPS14227  Ligusticum apiifolium Joseph P. Tracy 1937-8-15 15666 Humboldt 4 mi. e. Orick (Gans Prairie); Gans Prairie 548 Comment
  HSC74226  Ligusticum californicum M. A. Baker 1980-7-19 3021 Humboldt Near Bret Hole. 1814 Comment
  HSC98754  Ligusticum californicum Cara Witte 2007-7-19 551 Humboldt Forest Service Road 4N32. 1.5 miles east of intersection with 4N70. Grouse Mountain Lookout. 1547 Comment
  UC176689  Lilium columbianum Joseph P. Tracy 1913-7-13 4356 B Humboldt Patrick's Point; Northern Coast Ranges 30 Comment
  POM87955  Lilium columbianum Le Roy Abrams, Rimo C. Bacigalupi 8260 Humboldt Between Trinidad and Big Lagoon Comment
  RSA34281  Lilium humboldtii subsp. humboldtii J. Wendell Howe 1934-07 s.n. Humboldt Bald Mountain Comment
  HSC35594  Lilium kelloggii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2005 Humboldt French Camp, Bald Hills. Comment
  RSA130320  Lilium kelloggii Albert M. Vollmer 1949-7-1 s.n. Humboldt 3 miles east of the old Eureka-Arcata road on the Kneeland road Comment
  RSA74745  Lilium kelloggii Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On trail to Blohns cabin, Bald Mountain, east of Korbel Comment
  CAS-BOT-BC130685  Lilium occidentale A. M. Vollmer; L. Beane 1953-7-1 118 Humboldt unspecified Comment
  JEPS79921  Lilium occidentale Joseph P. Tracy 1918-7-21 5078 Humboldt around Humboldt Bay Humboldt Hill; Northern Coast Ranges, Humboldt Bay, Humboldt Hill 182 Comment
  HSC36887  Lilium pardalinum subsp. pardalinum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2060 Humboldt Beside Rd. 2S08 to Pine Mtn. 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
  HSC58108  Lilium pardalinum subsp. pardalinum G. L. Clifton, Griswold 1979-8-1 12043 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC65208  Lilium pardalinum subsp. vollmeri T. Jimerson, J. Pageau 1979-7-17 676 Humboldt Near Clear Lake 1494 Comment
  HSC79265  Lilium rubescens D. K. Imper 1983-7-12 Humboldt Along USFS Rd. 10N14, 2 mi. N of jct. with 13N01, N of Blue Lake. Also noted 1 mi. N on 13N01, .2 mi. N of jct. with 10N14 762 Comment
  UC1198250  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1913-7-20 4366 Humboldt ridge between Redwood Creek and Willow Creek (on Willow Creek road); Northern Coast Ranges 914 Comment
  HSC45598  Limnanthes douglasii subsp. nivea Diane L. Reed 1978-5-27 131 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  UC971807  Limnanthes douglasii subsp. nivea Charles T. Mason Jr. 1949-4-29 1283 Humboldt 3.7 mi n Blocksburg (along road from Harris to Bridgeville) Comment
  CHSC89511  Limnobium laevigatum Gordon Leppig; T. LaBanca 2003-3-13 1823 Humboldt Arcata, Alder Grove Pond. On south shore of wetland. UTM Zone 10, 428185 N, 410100 E. 9 Comment
  HSC16906  Limonium californicum C. B. Wolf 1927-8-28 1187 Humboldt Eureka Bay, on the road to Arcata Comment
  UC908636  Linanthus acicularis Joseph P. Tracy 1929-5-5 8563 Humboldt Miranda, along South Fork of Eel River Northern Coast Ranges, South Fork of Eel River 121 Comment
  UCSB8725  Linaria vulgaris Phillips, Priscilla 1958-6-7 Humboldt Patrick's Point; near Trinidad Comment
  POM203675  Linaria vulgaris I. L. Wiggins 1932-7-19 5890 Humboldt Roadside near Trinidad Head, Comment
  HSC15798  Linum bienne Gerald T. Rood 1962-5-6 18 Humboldt Kneeland Rd. ca. 1 mi. W of Barry Rd. Comment
  HSC15802  Linum bienne F. B. Plett 1963-4-9 15 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC59444  Linum bienne Kenneth Clark 1979-4-18 110 Humboldt 1 block E on California Ave., in Arcata. Comment
  UC146221  Listera cordata Joseph P. Tracy 1908-6 2723 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Van Duzen River 304 Comment
  HSC63078  Listera cordata var. nephrophylla David Wheeler 1979-4-23 82 Humboldt Camp Bauer, Korbel, just past the entrance gate, on the left Comment
  JEPS81106  Lithocarpus densiflorus var. densiflorus Thomas W. Nelson and Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland; e side of junction of Kneeland and Maple Creek roads 670 Comment
  RSA152286  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-8-15 18136 Humboldt Trinity Summit. On ridge 2 miles east of Grove's Prairie. 1524 Comment
  HSC98767  Lithophragma campanulatum Cara Witte 2008-6-27 760 Humboldt Approximately 1.5 miles south of intersection National Forest 1 and 5N04. 1546 Comment
  UC667092  Lithophragma campanulatum Joseph P. Tracy 1934-4-15 13179 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC435645  Lithophragma heterophyllum Volney Rattan 1883-6-1 s.n. Humboldt Between Mad R. and Pilot Creek Comment
  UC38782  Lolium multiflorum Harley P. Chandler May, 1901 1103 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  HSC74113  Lolium perenne M. A. Baker 1980-6-16 1941 Humboldt Near Monks Camp. 1097 Comment
  SEINET200608 Image available Lolium perenne J. P. Tracy 1923-8-25 6539 Humboldt Eureka 13 Comment
  UC1103157  Lolium temulentum Joseph P. Tracy 1913-6-19 4211 1/2 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC32942  Lomatium californicum Thomas W. Nelson, James Nelson 1973-5-28 954 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC96251  Lomatium californicum Kaylea Eickhoff, Cara M. Witte 2005-6-24 16 Humboldt ~13 mi S of Hwy 299 on NF1 1375 Comment
  HSC102607  Lomatium macrocarpum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1594 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  RSA21095  Lomatium macrocarpum C. B. Wolf 1937-6-14 8823 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  HSC97454  Lomatium nudicaule Cara Witte 2007-6-7 234 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC249606  Lomatium nudicaule Joseph P. Tracy 1922-4-30 6023 Humboldt mouth of S. Fork Trinity R.; Northern Coast Ranges, S. Fork Trinity R. 152 Comment
  UC314629  Lomatium tracyi Joseph P. Tracy 1926-6-20 7610 Humboldt Horse Mt. Northern Coast Ranges, Horse Mt. 1524 Comment
  UC906652  Lomatium utriculatum Joseph P. Tracy 1947-6-8 17707 Humboldt 5 mi. e. Carlotta (open flat by old Strong's District School House) 45 Comment
  HSC81687  Lonicera conjugialis Thomas W. Nelson 1979-7-11 5001 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  SBBG7350  Lonicera hispidula H. and M. Dearing 1933-5-15 1852 Humboldt Garberville Comment
Read comments
Oct 13 2014
  UCD67636  Lonicera hispidula D. Sanchez-Mata 1996-6-28 s.n. Humboldt Blue Lake-Willow Creek. Lord-Ellis Summit. 560 Comment
  UC1239555  Lonicera hispidula var. vacillans Joseph P. Tracy 1915-6-27 4658 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek 60 Comment
  POM92405  Lonicera involucrata L. R. Abrams 1922-6-25 8246 Humboldt Near South Bay. Comment
  SBBG69576  Lonicera involucrata var. ledebourii R. Hartwell 1938-8-6 Humboldt near Arcata Comment
  UC179940  Lotus aboriginus Joseph P. Tracy 1914-9-6 4599 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC98876  Lotus crassifolius var. crassifolius Cara Witte 2008-7-25 928 Humboldt Horse Mountain Botanical Area. At intersection of 6N36B and Forest Service Road 6N36A. 1355 Comment
  HSC97945  Lotus crassifolius var. crassifolius Cara Witte 2007-6-26 357 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  SEINET3696752 Image available Lotus denticulatus Joseph P. Tracy 1908-7-30 2756 Humboldt Valley of Van Duzen River; Opposite Buck Mountain 762 Comment
  UC179922  Lotus denticulatus Joseph P. Tracy 1914-6-14 1240 Humboldt near Hydesville; Northern Coast Ranges, Van Duzen River, Yager Creek 30 Comment
  RSA406183  Lotus humistratus Lester Rowntree 1931-7-21 s.n. Humboldt Mattole River Bridge 2 miles from Petrolia. Comment
  RSA20787  Lotus oblongifolius var. nevadensis Carl B. Wolf 1937-8-13 9252 Humboldt North Coast Range 11 mi. E. of Hoopa Valley on New Road towards Trinity Summit. 1524 Comment
  UC1223424  Lotus pinnatus Joseph P. Tracy 1942-6-15 17134 Humboldt Englewood Prairie Comment
  SEINET3694253 Image available Lotus purshianus Joseph P. Tracy 1937-8-12 15628 Humboldt Bald Mountain: Border of Lake Prairie Bog, 3 miles S of Murphy Meadows 1067 Comment
  UC160992  Lotus purshianus var. purshianus Joseph P. Tracy 1911-8-27 3536 Humboldt Eureka Northern Coast Region 0 Comment
  HSC31388  Lotus scoparius Lincoln Constance 1934-6-1 768 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  UCD106710  Lotus uliginosus R. Tofsrud 1948-7-1 s.n. Humboldt Between Fields Landing and Loleta. Comment
  HSC56969  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-23 9498 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  RSA183610  Lotus wrangelianus R. I. Bonn 1965-5-7 29 Humboldt Four mi els west of Arcata on Lanphere Rd. Comment
  RSA21446  Lotus yollabolliensis C. B. Wolf 1937-8-12 9210 Humboldt North Coast Range, South Fork Mountain, 0.6 miles S of Blake Lookout. 1677 Comment
  HSC58199  Luina hypoleuca Walter Overton 1979-8-2 12302 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  HSC49990  Luina hypoleuca M. A. Baker 1979-6-6 776 Humboldt N facing slope near to road to Hospital Mt. 610 Comment
  HSC98035  Luina hypoleuca Cara Witte 2007-7-17 535 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1368 Comment
  OBI33908  Lupinus David J. Keil 1983-7-2 17319 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mtn Summit rd Comment
  SEINET5766882 Image available Lupinus affinis J. P. Tracy 1947-1 17677 Humboldt near Briceland Comment
  SEINET10488353  Lupinus affinis Charles Piper Smith 1948-5-10 Smith 48248 Humboldt Hwy 101. 0.2 Miles s of miranda Comment
  JEPS64896  Lupinus albicaulis Joseph P. Tracy 1923-6-19 6298 Humboldt near King's Peak (Wilder Ridge); Northern Coast Ranges 762 Comment
  HSC41303  Lupinus albicaulis Brad Klipfel 1974-7-23 463 Humboldt Horse Mtn. Comment
  UC146919  Lupinus albicaulis var. shastensis Harley P. Chandler June, 1901 1499 Humboldt near Weitchpec (Klamath River); North Coast Ranges, Klamath River 426 Comment
  HSC1872  Lupinus albifrons F. Morrell 1949-5-14 19 Humboldt Weitchpec Comment
  CHSC19515  Lupinus arboreus Wendell Wood 1970-10-7 307 Humboldt McKinleyville. Clam Beach. 0 Comment
  HSC2122  Lupinus arboreus C. B. Wolf 1927-8-29 1209 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  SBBG115192  Lupinus arboreus D. Leaberry 1992-6-20 Humboldt Clam Beach County Park, 1 mi N of Arcata Airport on Hwy 101 Comment
  UC149843  Lupinus arboreus J. P. Tracy 1910-5-8 3134 Humboldt immediate vicinity Eureka; Immediate vicinity of Eureka 0 Comment
  UCSB23853  Lupinus arboreus J. R. Haller 1967-6-17 2180 Humboldt collected 10.0 mi N, along U S Highway 101 at Clam Beach County Park Arcata - Clam Beach County Park, U S Highway 101 and Arcata Comment
  HSC104446  Lupinus bicolor Jeff Barrett 2009-5-8 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC31789  Lupinus bicolor Donald Spalinger 1974-4-25 25 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  HSC33762  Lupinus bicolor A. Montalvo 1975-5-24 277 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC38190  Lupinus bicolor Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  HSC71467  Lupinus bicolor J. P. Smith, J. O. Sawyer 1973-5-12 6680 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  RSA296803  Lupinus bicolor subsp. microphyllus Lincoln Constance 1934-5-26 664 Humboldt S. Ford of eel River, S. end of Dyerville Bridge. 46 Comment
  JEPS109559  Lupinus elmeri Dean Wm. Taylor, Tom Engstrom 2002-7-19 18250 Humboldt South Fork Mountain, Blake Mountain, opening along Forest Road 1 ca. 0.5 mi N of the highest point on the ridge 1737 Comment
  HSC48616  Lupinus latifolius Mark Flippo 1978-5-29 93 Humboldt MKinleyville, Bella Vista Rd. Comment
  HSC35605  Lupinus latifolius subsp. viridifolius Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2016 Humboldt French Camp, Bald Hills. Comment
  RSA87026  Lupinus luteolus F. W. Peirson 1926-7-13 7057 Humboldt Near Blue Lake, Mad River Comment
  UCD170581  Lupinus rivularis Gordon Leppig 1998-4-7 731 Humboldt Rt. 299. 396 Comment
  UCSB12242  Lupinus rivularis Breedlove, Dennis 1961-7-4 Humboldt 10.9 miles west of Willow Creek on U.S. 299 822 Comment
  HSC2118  Lupinus succulentus J. Wendell Howe Humboldt Cape Mendocino Comment
  HSC58042  Lupinus tracyi Gilbert Muth 1979-8-1 11890 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  RSA87079  Lupinus vallicola subsp. apricus F. W. Peirson 1923-7-10 4221 Humboldt Garberville Comment
  UC1152142  Luzula cascadensis Joseph P. Tracy 1930-7-17 8972 Humboldt Near McKay Camp, South Fork Mountain 1676 Comment
  HSC98044  Luzula comosa Cara Witte 2007-5-31 163 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  UC1152137  Luzula comosa Joseph P. Tracy 1938-5-8 15738 Humboldt 4 mi e town (vicinity of Carlotta, edge of woods near Cummings Creek); near Cummings Creek, vicinity of Carlotta 30 Comment
  UC1103682  Luzula comosa var. laxa Joseph P. Tracy 1924-4-27 6649 Humboldt Northern Coast Ranges: Near Berry's on Redwood Creek 365 Comment
  RSA245025  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  CAS-BOT-BC61934  Lycopodium clavatum Donald Branscomb 1959-9-1 s.n. Humboldt Trinidad Comment
  HSC95500  Lycopodium clavatum Gordon Leppig 2004-2-3 2129 Humboldt Pacific Lumber Co. land, NE edge of THP 1-04-001 HUM. 300 Comment
  LA5619  Lycopodium clavatum H. E. Parks; W. K. Parks 1932-7-30 1132 Humboldt Trinidad, Camp 21, Hammond Lumber Company 152 Comment
  UC179917  Lysichiton americanus Joseph P. Tracy 1914-9-13 4627 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  JEPS46466  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt Fields Ld'g Comment
  RSA0023106  Lythrum Robert F. Thorne, Percy C. Everett 1965-8-8 35251 Humboldt North edge of Eureka, east of Highway 101 5 Comment
  HSC89989  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
  HSC35631  Madia elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-8-1 2144 Humboldt Beside Willow Creek just up stream from Hwy. 299 bridge Comment
  SEINET11810578  Madia elegans L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  HSC58359  Madia gracilis Overton, Butler 1979-8-2 12706 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC58706  Madia gracilis Griswold, Butler 1979-7-10 7133 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  UC1223208  Madia gracilis Joseph P. Tracy 1950-7-6 19026 Humboldt 3 mi s of Burr Valley; Sproston's Place 1066 Comment
  UC166273  Madia gracilis Joseph P. Tracy 1901-7-31 1236 Humboldt near Hydesville 60 Comment
  RSA792307  Madia madioides Rebecca Wenk, P. Hopkinson, M. Hammond, S. Spiegal 2008-6-6 835 Humboldt Humboldt Redwoods State Park. Look Prarie, 0.5 air miles north of Mattole Road, about 3 air miles west of Highway 101. 244 Comment
  CAS-BOT-BC343594  Madia sativa Doris K. Kildale 1925-7-28 1093 Humboldt Riverside on the Van Duzen River near Strong's Station Comment
  UC1052187  Madia sativa J. L. Meyer 1954-10-11 29 Humboldt 3 mi n Blocksburg; Quadrangle 29A3 457 Comment
  UC1069897  Madia sativa H. L. Person 1932-8-15 Humboldt Korbel Eureka Quadrangle Comment
  CHSC10104  Maianthemum dilatatum J. W. Johnson 1962-4-21 1287 Humboldt Arcata. Along Lanphere Lane, Samoa Peninsula. Comment
  UC1134630  Maianthemum dilatatum H. S. Yates 1936-6-23 5864 Humboldt 1 mi. s. Loleta; Rohnerville Quad. Comment
  POM87668  Maianthemum dilatatum Le Roy Abrams, Rimo C. Bacigalupi 8300 Humboldt Near northern county line Comment
  HSC15650  Maianthemum racemosum subsp. amplexicaule V. G. Vieira 1963-5-2 47 Humboldt Butler Valley Ranch Comment
  SEINET12050378  Maianthemum racemosum subsp. amplexicaule F. H. Utech 1988-1 88 -270 Humboldt 14 mi W of Bridgeville to Carlotta on CA 36, Mile Marker 11.40, Van Duzen Co. Park (Pamplin Grove) 50 Comment
  HSC98155  Maianthemum stellatum F. B. Plett 1963-4-21 19 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  UC535702  Malacothrix floccifera Eleanor Armstrong 1934-8-24 1191 Humboldt Richardson Grove 121 Comment
  CAS-BOT-BC540127  Malus domestica Jay B. Walker 1995-4-26 1386 Humboldt Six Rivers National Forest. Hwy 36. 2km W of town of Cobbs. 800 Comment
  JEPS45607  Malus fusca Milo S. Baker 1923-8-5 196 Humboldt near Orick; North Coast Comment
  UC668145  Malva neglecta Joseph P. Tracy 1937-9-6 15320 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  BLMAR684  Marah fabacea Jennifer Wheeler 2013-6-25 684 Humboldt King range, Strawberry Rock 76 Comment
  HSC65125  Marah oregana J. P. Smith 1971-10-6 4968 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC97635  Marah oregana Cara Witte 2007-6-4 181 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC45592  Marah oregana Diane L. Reed 1978-5-27 127 Humboldt Horse Mtn., on Titlow Hill Rd. 1.5 mi. from junction with Hwy. 299 Comment
  HSC89517  Marah oregana M. Roantree 1985-6-11 91 Humboldt E side of Trinidad Head Comment
  HSC6021  Matricaria discoidea Francis Winter 1960-4-23 Humboldt 4 mi. N of Dollar Ranch, on Korbel-Maple Creek Rd. 244 Comment
  UC1223204  Matricaria discoidea Joseph P. Tracy 1942-7-1 17368 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  HSC48059  Medicago arabica Thomas W. Nelson 1978-4-24 3889 Humboldt Eureka, along F St. between Orchard and Willow St. Comment
  UC170039  Medicago lupulina Joseph P. Tracy 1912-7-4 3728 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC14977  Medicago polymorpha D. B. Bader 1963-3-29 15 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  HSC14978  Medicago polymorpha A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek jct., 50 yards W of Lindsey Creek. Comment
  HSC90387  Medicago polymorpha Jean Hanson 1980-4-12 46 Humboldt Eureka, Indian Island in Humboldt Bay, W end of 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
  SEINET200336 Image available Melica californica J. P. Tracy 1913-6-18 4195 Humboldt Dinsmore's Ranch vally of Van Duzen River opposite Buck Mtn N Coast Ranges 762 Comment
  UCD66181  Melica californica D. W. Cooper 1956-6-5 s.n. Humboldt Upper Mattole area. Benbow Ranch, Ettersburg. Comment
  UCD87157  Melica californica A. H. Murphy 1951-6-12 57 Humboldt Fleming range plant count area on Ft. Seward ranch, south fork of the Eel River Drain. Comment
  POM161909  Melica californica var. nevadensis Joseph P. Tracy 1921-5-30 5491 Humboldt Kneeland Prairie. 762 Comment
  UCD87500  Melica harfordii Freed W. Hoffman 1946-5-24 1718 Humboldt Willow Creek. Comment
  CAS-BOT-BC281025  Melica stricta Joseph P. Tracy 1935-7-30 14377 Humboldt W side at top of Salmon Summit 2103 Comment
  UCD88643  Melica subulata A. H. Murphy 1951-5-15 s.n. Humboldt 3/4 mile south of South Fork on McCann Road. Comment
  SEINET10925519  Melica subulata Harley P. Chandler Chandler 1174 Humboldt 30 Comment
  HSC71440  Melilotus albus J. P. Smith 1973-5-26 6793 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC71635  Melilotus albus J. P. Smith 1973-5-26 6875 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA246658  Mentha canadensis Robert F. Thorne 1965-9-19 35459 a Humboldt Freshwater Lagoon, south of Orick 3 Comment
  UC535756  Mentha canadensis Eleanor Armstrong 1934-7-18 1127 Humboldt Richardson Grove; Sandbar 121 Comment
  HSC23730  Mentha pulegium Tim Baroni 1971-7-5 99 Humboldt Comment
  SEINET10498893  Mentha pulegium Mary Susan Taylor 1977-8-5 Taylor 1429 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  JEPS5825  Microseris borealis Joseph P. Tracy 1936-6-28 15027 Humboldt Lake Prairie Bald Mountain (in bog) 1066 Comment
  UC1223043  Microseris laciniata subsp. laciniata Joseph P. Tracy 1947-6-8 17706 Humboldt by old Strong's District School House (5 mi e of town); Carlotta 60 Comment
  RSA167429  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1947-7-9 17828 Humboldt Horse Mountain, lower slopes 1128 Comment
  UC1199450  Microseris nutans Joseph P. Tracy 1933-7-25 12886 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  JEPS4738  Mimulus alsinoides Joseph P. Tracy 1925-6-7 7062 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  UC582707  Mimulus arvensis Joseph P. Tracy 1936-5-2 7435 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC582708  Mimulus arvensis H. E. Parks and Joseph P. Tracy 1931-5-9 12541 Humboldt near Miranda 60 Comment
  JEPS32498  Mimulus aurantiacus var. aurantiacus Peter H. Raven 1963-5-15 18375 Humboldt about 1.5 mi s Trinidad (Luffenholz Beach) Comment
  UC535785  Mimulus aurantiacus var. aurantiacus Elmer I. Applegate 1923-9-12 3988 Humboldt below Orick; Stone Lagoon Comment
  HSC102111  Mimulus breweri M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1014 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC45433  Mimulus breweri Thomas W. Nelson, Jane P. Nelson 1978-7-2 4389 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  HSC70513  Mimulus cardinalis Thomas W. Nelson, Jane P. Nelson 1977-8-6 3685 Humboldt Along Mad River at Anderson's Ford 640 Comment
  POM87667  Mimulus dentatus L. R. Abrams, R. C. Bacigalupi 1922-6-25 8279 Humboldt Big Lagoon, south of Orick. Comment
  UC147879  Mimulus dentatus J. P. Tracy 1900-5-30 833 Humboldt immediate vicinity Eureka 0 Comment
  UCSB15934  Mimulus dentatus Breedlove, Dennis 1962-6-8 Humboldt along U.S. Highway 101; 8 miles north of Orick 60 Comment
  UC175712  Mimulus douglasii Joseph P. Tracy 1913-6-19 4208 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1222805  Mimulus grandis Joseph P. Tracy 1950-6-8 18745 Humboldt 1 mi e Cape Mendocino (near Capetown); Cape Ridge 152 Comment
  SEINET12269862  Mimulus guttatus J. P. Tracy 1950-1 18745 Humboldt near Capetown, Cape Ridge, 1 mi E of Cape Mendocino 152 Comment
  JEPS25044  Mimulus inodorus Doris Kildale Aug. 1925 Humboldt Trinity Summit Comment
  JEPS86687  Mimulus nanus var. nanus L. R. Heckard with T. I. Chuang 1990-7-15 6770 Humboldt below and s of road South Fork Mountain (summit of Blakes Mountain); , Blakes Mountain 1800 Comment
  UC1103330  Mimulus primuloides Doris Kildale Aug. 1925 Humboldt Waterdog Lake Trinity Summit 1828 Comment
  UC1196786  Mimulus pulsiferae Joseph P. Tracy 1908-6 2698 Humboldt opposite Buck Mountain (along stream); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC44532  Mimulus tilingii Brad Klipfel 1973-7-1 141 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1103537  Minuartia californica Joseph P. Tracy 1918-5-1 4908 Humboldt Lawrence Creek Hill Northern Coast Ranges, Kneeland Prairie (top) 762 Comment
  UC1103542  Minuartia californica Joseph P. Tracy 1925-5-30 7033 Humboldt Larribee Valley Northern Coast Ranges 701 Comment
  UC427871  Minuartia cismontana H. E. Parks and J. P. Tracy 1930-5-25 866 Humboldt Laribee Valley Comment
  HSC24108  Mitella diversifolia J. O. Sawyer 1970-6-27 2307 Humboldt Site 318. 1494 Comment
  HSC72792  Moehringia macrophylla M. A. Baker 1980-6-16 1931 Humboldt Near Monks Camp 109 Comment
  UCD63139  Moehringia macrophylla Heather Mehl 2008-4-15 s.n. Humboldt California. Humboldt County: Redwood National Park, 11 miles east of Hwy 101 on Bald Hills Road. 640 Comment
  UC229833  Mollugo verticillata Joseph P. Tracy 1921-10-16 5972 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC102085  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 989 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC215566  Monardella odoratissima subsp. pallida Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 1310 Comment
  HSC58020  Monardella odoratissima subsp. pallida G. L. Clifton 1979-7-31 11822 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC74409  Monardella odoratissima subsp. pallida Gail Newton 1980-8-10 2023 Humboldt Near Blake Mtn. 1798 Comment
  RSA46838  Monardella odoratissima subsp. pallida Doris K. Kildale 1927-7-22 3814 Humboldt Lasseck s Peaks Comment
  UC2035937  Monardella villosa C. Epling Aug 1933 Humboldt Richardson Grove Comment
  RSA0022806  Monardella villosa Carl B. Wolf 1937-8-13 9223 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  RSA52284  Monotropa uniflora D. Meadows 1950-7-21 a.n. Humboldt Near Bear Trap on Irvine Trail, Prairie Creek State Park. Comment
  RSA264852  Montia diffusa Lincoln Constance, A. A. Beetle 1940-5-17 2615 Humboldt In Shade of Cornus and Sambucus, cutover Pseudotsuga forest. Above Van Duzen River, 1 mile below Dinsmore s 762 Comment
  UC1223246  Montia diffusa Joseph P. Tracy 1950-5-7 18652 Humboldt road to South Yager Valley is 5 mi n of Bridgeville (Valley of South Yager Creek); Valley of South Yager Creek 762 Comment
  JEPS43276  Montia howellii J. P. Tracy 1909-5-2 2956 Humboldt Eureka Comment
  CAS-BOT-BC445151  Montia parvifolia I. L. Wiggins 1932-7-7 5879 Humboldt Near Samoa Comment
  UC1561278  Montia parvifolia Barbara Ertter with Thomas J. Delendick 1987-5-16 6935 Humboldt 3 mi e of Berry Summit (on Hwy 299, 20 air mi e of Arcata, on s side of road above Willow Creek) 800 Comment
  CAS-BOT-BC260572  Muhlenbergia filiformis Joseph P. Tracy 1933-7-25 12833 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC260573  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  HSC10395  Muhlenbergia filiformis H. E. Parks, J. P. Tracy 1934-6-27 11083 Humboldt Grouse Mtn. Comment
  HSC75443  Muhlenbergia filiformis J. O. Sawyer 1980-7-18 3598 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  CHSC33038  Myosotis latifolia James P. Smith 1973-5-26 6855 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  JEPS70791  Myosotis verna Joseph P. Tracy 1937-5-17 15297 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UCD150388  Myriophyllum aquaticum William Anderson 1958-12-24 s.n. Humboldt McKinleyville. Comment
  HSC56181  Navarretia divaricata G. L. Clifton, Griswold 1979-8-1 12097 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1197902  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1908-6 2931 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC34708  Navarretia squarrosa Thomas W. Nelson 1974-7-20 1696 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1198530  Navarretia squarrosa Joseph P. Tracy 1941-9-1 16998 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  OBI22891  Navarretia squarrosa H. E. Parks, S. T. Parks 24442 ` Humboldt Trinidad, Spruce Groove. 76 Comment
  JEPS70515  Navarretia viscidula Joseph P. Tracy 1927-7-24 8294 Humboldt Upper Mattole 152 Comment
  HSC13584  Nemophila menziesii H. E. Parks, J. P. Tracy 1930-5-25 797 Humboldt Laribee Valley 793 Comment
  OBI13911  Nemophila menziesii Carl B. Wolf 1937-6-19 8915 Humboldt North Coast Range, 3 mi W of Little Van Duzen River at summit of grade-Dinsmore to Bridgeville 762 Comment
  HSC32387  Nemophila menziesii var. atomaria Linda M. Barker 1974-5-11 183 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  JEPS1791  Nemophila menziesii var. atomaria Lincoln Constance 1934-6-15 879 Humboldt summit of Grasshopper Peak; Bull Creek Region, South Fork Eel River, Grasshopper Peak 975 Comment
  HSC32882  Nemophila parviflora Thomas W. Nelson, James Nelson 1973-5-28 934 Humboldt McKeown Ranch N of Dinsmore Comment
  UC585996  Nicotiana quadrivalvis Joseph P. Tracy 1930-10-19 9223 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  HSC6969  Noccaea fendleri subsp. californica D. E. Anderson 1962-7-14 2261 Humboldt Comment
  CDA17340  Noccaea fendleri subsp. californica P. Haggard 2004-8-15 PDR 1285929 Humboldt North Coast Ranges; Friday Ridge Rd, Willow Creek. 0 Comment
  HSC93914  Noccaea fendleri subsp. glauca D. K. Imper Apr 1996 Humboldt W side of Horse Mtn., near hairpin in road, 1 mi. before junction 1067 Comment
  UCR4969  Notholithocarpus densiflorus Frank C. Vasek 1966-7-13 660713- 03 Humboldt North Coast Range, 3 mi. west of Garberville 450 Comment
  HSC98717  Notholithocarpus densiflorus var. echinoides Cara Witte 2007-8-9 644 Humboldt Along Forest Service Road 5N10. 2 miles east of intersection with National Forest 1. 1334 Comment
  HSC99078  Notholithocarpus densiflorus var. echinoides Cara Witte 2008-7-25 940 Humboldt Forest Service Road 5N10. Approximately 1.5 miles north of intersection with Forest Service Road 5N10C. 1319 Comment
  HSC60379  Nuphar polysepala J. M. DiTomaso 1979-4-22 908 Humboldt Crannell Rd. exit between Westhaven and McKinleyville Comment
  CAS-BOT-BC142295  Oemleria cerasiformis Doris K. Kildale 1927-6-25 3567 Humboldt Shelton Cove in gully. Comment
  CDA26036  Oemleria cerasiformis R. Bennett 1976-7-2 Humboldt 505 Palmer Boulevard, Fortuna. 0 Comment
  UC154222  Oemleria cerasiformis Joseph P. Tracy 1909-6-13 2993 Humboldt near Blue Lake; Northern Coast Ranges, Mad River Valley 30 Comment
  UC314583  Oenanthe sarmentosa Joseph P. Tracy 1924-9-28 6910 Humboldt Centerville Northern Coast Ranges, Centerville 6 Comment
  CDA38491  Oenanthe sarmentosa Margaret Bellue Jul 1933 s.n. Humboldt Arcata. 0 Comment
  HSC26680  Oenanthe sarmentosa John R. Keith 1973-5-15 Humboldt Abandoned log pond about 300 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  RSA46821  Oenanthe sarmentosa Doris K. Kildale 1925-7-28 1094 Humboldt [Unspecified] Comment
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Mar 22 2014
  UC642332  Oenanthe sarmentosa Joseph P. Tracy 1927-9-25 8376 Humboldt at Eureka Eureka 6 Comment
  HSC93791  Oenothera wolfii D. K. Imper 1986-6-5 21 Humboldt Adjacent to onramp, Hwy. 101 S , S side of Klamath River, S of Klamath 12 Comment
  HSC103084  Orobanche fasciculata Sydney Carothers 2014-6-22 3 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  HSC48820  Orogenia fusiformis Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 34 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC1197574  Orthilia secunda Joseph P. Tracy 1932-7-16 10621 Humboldt Trinity Summit bear Corral Prairie 1584 Comment
  RSA80246  Orthocarpus erianthus var. gratiosus F. W. Peirson 1941-7-28 13107 Humboldt Along road to Patrick Point, State Park. Comment
  HSC56006  Osmorhiza berteroi Overton, Butler 1979-7-31 11474 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC56138  Osmorhiza berteroi G. L. Clifton, Terry Griswold 1979-8-1 11959 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  RSA249513  Osmorhiza berteroi R. F. Thorne, P. Everett 1965-8-5 35129 Humboldt Wailaki Recreation site. 518 Comment
  UC314579  Osmorhiza berteroi Joseph P. Tracy 1923-6-19 6291 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  UC1476963  Osmorhiza berteroi Porter P. Lowry, II 1977-6-30 795 Humboldt Lady Bird Johnson Cave Redwood National Park (Viewpoint) Comment
  HSC53833  Osmorhiza occidentalis Terry Griswold, Butler 1979-7-10 6281 Humboldt Near Board Camp Mountain 1372 Comment
  HSC98819  Osmorhiza occidentalis Cara Witte 2008-7-1 790 Humboldt Forest Service Road 4N32. .5 miles east of intersection with 5N04 and 4N32E. 1508 Comment
  HSC59074  Oxalis articulata subsp. rubra Thomas Wood 1979-5-3 147 Humboldt In Arcata, in front yard at 3799 Spear Ave. 9 Comment
  JEPS93971  Oxalis incarnata Vernon Oswald 1998-4-16 8918 Humboldt at the s. tip of the North Spit of Humboldt Bay Samoa Dunes Recreation Area (along rd. leading into the recreation area); Humboldt Bay, Samoa Dunes Recreation Area 6 Comment
  HSC47502  Oxalis oregana Sheila Logan 1978-4-10 28 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  UCR84792  Oxalis oregana Kathy Harper 1992-5-14 s.n. Humboldt State Hwy 36 c. 5 mi. east of U.S. Hwy 101, and 1 mi. east of Carlotta 61 Comment
  HSC34809  Oxalis oregana John Palmer 1975-4-9 298 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  RSA34052  Oxalis oregana A. A. Heller 1923-7-10 13787 Humboldt Humboldt Camp between Scotia and Pepperwood Comment
  UC1103420  Oxalis oregana Joseph P. Tracy 1923-5-13 6198 Humboldt near Strong's Station (on Van Duzen River); Northern Coast Ranges 60 Comment
  UC1103425  Oxalis oregana J. P. Tracy 1906-4-15 2411 Humboldt near Kobel; Bald Mt. 609 Comment
  UCSB7499  Oxalis oregana Phillips, Priscilla 1958-6-7 Humboldt Near entrance to Prairie Creek Redwood Park, north of Orick Comment
  HSC89720  Oxalis pes-caprae Larry Levine, Manuel Pachero, , Robert Murphey 1989-2-24 3 Humboldt HSU campus, garden plot SE of Buck House 40 Comment
  UC212875  Panicum acuminatum var. acuminatum Joseph P. Tracy 1920-8-15 5356 Humboldt Klamath River Bluff Creek; Northern Coast Ranges, Klamath River at Bluff Creek 152 Comment
  UC1145036  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1939-4-29 16246 Humboldt 8 mi below Orleans; Klamath River near Slate Creek 121 Comment
  HSC8614  Papaver rhoeas D. G. Hauger 1967-7-13 6 Humboldt Corner of W boundary of section 25 Comment
  UC1103480  Parapholis incurva Joseph P. Tracy 1936-6-6 14860 Humboldt Eureka; Eureka, on bay shore 3 Comment
  HSC12791  Parentucellia viscosa Jana Kattenhorn 1970-10-14 47 Humboldt Big Lagoon Comment
  POM126123  Paspalum distichum Joseph P. Tracy, H. E. Parks 1924-8-3 6779 Humboldt Big Lagoon 6 Comment
  UCD88947  Paspalum distichum Joseph P. Tracy 1939-10-6 16505 Humboldt Eureka. West of Sunset Cemetary. Comment
  POM288009  Pastinaca sativa Lyman Benson 1928-7-12 811 Humboldt Weott Ranger Station. 61 Comment
  UC169889  Paxistima myrsinites Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5655 Humboldt Hoopa Mt. Comment
  UC1245386  Pedicularis groenlandica Joseph T. Gregory 1935-7-30 851 Humboldt at head of Virgin Creek; Salmon Summit 1828 Comment
  JEPS7203  Penstemon anguineus W. L. Jepson 1902-7-24 2112 Humboldt Trinity Summit 1828 Comment
  RSA425609  Penstemon anguineus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  UC1245389  Penstemon anguineus Joseph T. Gregory 1933-7-16 449 Humboldt nr MacKay Camp (edge of swamp); nr MacKay Camp 1737 Comment
  HSC32305  Penstemon azureus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5649 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UCR131735  Penstemon azureus C. B. Wolf 1937-8-13 09220 Humboldt North Coast Range, 8 miles east of Hoopa Valley on new road toward Trinity Summit 1475 Comment
  HSC70977  Penstemon deustus Gail Newton 1980-7-22 1678 Humboldt Near Devils Backbone 1554 Comment
  JEPS11368  Penstemon heterophyllus var. purdyi Lincoln Constance 1934-5-26 676 Humboldt s end of Dyerville Bridge Bull Creek Region, South Fork Eel River, Dyerville Bridge (South Fork Eel River, Bull Creek Region) 45 Comment
  JEPS28976  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16544 Humboldt Garberville Garberville (along river) 152 Comment
  HSC36637  Penstemon laetus subsp. sagittatus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1905 Humboldt N side of Pine Mtn. Comment
  RSA21443  Penstemon newberryi subsp. berryi Carl B. Wolf 1937-8-12 9207 Humboldt North Coast Range, South Fork Mountain, 0.6 miles S of Blake Lookout. 1677 Comment
  JEPS9101  Penstemon newberryi var. berryi Joseph P. Tracy Jul 16-19 1930 8953 Humboldt South Fork Mountain, along summit near Blake lookout Northern Coast Ranges 1706 Comment
  HSC56057  Penstemon procerus var. brachyanthus G. L. Clifton, Terry Griswold 1979-7-31 11687 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC56161  Penstemon procerus var. brachyanthus G. L. Clifton, Terry Griswold 1979-8-1 12037 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  NY638944  Penstemon procerus var. brachyanthus J. P. Tracy 1932-7-12 10480 Humboldt Trinity Summit. Head of Brett Hole 1828.8 Comment
  HSC39394  Penstemon purpusii D. E. Anderson, J. P. Smith 1971-7-6 - 1279 Humboldt Horse Mtn. Comment
  UC577415  Penstemon rattanii Joseph P. Tracy 1930-8-24 9166 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC35941  Penstemon rattanii Thomas W. Nelson, Jane Nelson, James Nelson 1975-7-15 2025 Humboldt Beside Bald Hills Rd., just E of Redwood National Park Comment
  HSC79535  Pentagramma triangularis Kenneth Clark 1980-6-14 693 Humboldt On Greywacke outcrop, N fork Dead Man's Gulch 91 Comment
  RSA0094699  Pentagramma triangularis Ira L. Wiggins 1957-6-21 14139 Humboldt On E side of road, 1 mi. S of Garberville. Comment
  HSC38073  Perideridia howellii Thomas W. Nelson, James Nelson 1976-5-30 2634 Humboldt McKeowan Ranch N of Dinsmore along road to Anderson's Ford 915 Comment
  HSC75957  Perideridia parishii subsp. latifolia Overton, Butler 1979-7-24 9743 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  CAS-BOT-BC413504  Persicaria amphibia Joseph P. Tracy 1934-7-20 13467 Humboldt Big Lagoon 3 Comment
  HSC34702  Persicaria amphibia Thomas W. Nelson 1974-8-24 1705 Humboldt Klamath River ca. 2 mi. below the mouth of Aikins Creek Comment
  HSC99999  Persicaria capitata J. P. Smith 2009-11-17 12697 Humboldt Mouth of storm drain, at 7th & E in Eureka Comment
  UC1239507  Petasites frigidus var. palmatus Joseph P. Tracy 1937-7-2 15405 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  UC166539  Petasites frigidus var. palmatus Joseph P. Tracy 1905-3-5 2146 Humboldt Ryans Slough Northern Coast Ranges, Humboldt Bay Region 0 Comment
  UCD134927  Petasites frigidus var. palmatus R. N. Raynor 1935-3-13 s.n. Humboldt Fort Seward. Comment
  UCR179280  Petasites frigidus var. palmatus R. G. Swinney 1968-3-28 236 Humboldt East of Humboldt State College, Arcata 152 Comment
  UCR13417  Petasites palmatus T. Wetherwax 1973-4-1 730401- 2 Humboldt Old U.S. Hwy 101, just north of Myer's Flat. 152 Comment
  SEINET11809912  Petasites palmatus J. P. Tracy 1947-1 17670 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  JEPS1438  Phacelia bolanderi W. L. Jepson 1932-8-9 16536 Humboldt Bull Creek 106 Comment
  RSA170270  Phacelia bolanderi Joseph P. Tracy 1916-5-31 4704 Humboldt Stitz Creek. Along Eel River South Fork to Scotia. 61 Comment
  UC1239734  Phacelia ciliata var. ciliata J. P. Tracy 1899-4 163 Humboldt Immediate vicinity of Eureka 0 Comment
  UC176065  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1913-6-21 4252 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC57855  Phacelia mutabilis G. L. Clifton 1979-7-31 11371 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  POM259083  Phalaris aquatica J. T. Howell 1937-7-31 13721 Humboldt 4 miles north of Loleta Comment
  UC1103763  Phalaris arundinacea Joseph P. Tracy 1934-10-21 13695 Humboldt along coast in front of south end Stone Lagoon (Dry Lagoon); in front of South End Stone Lagoon, Dry Lagoon 3 Comment
  CDA304  Phalaris arundinacea J. W. Logan 1926-6-2 2 Humboldt Russell Ranch, Eureka. 0 Comment
  CAS-BOT-BC258965  Phalaris californica Joseph P. Tracy 1925-6-7 7085 Humboldt Lord-Ellis Road, on Bald Mt. 609 Comment
  HSC10560  Phalaris californica J. P. Tracy 1925-6-7 7085 Humboldt Lord-Ellis Rd on Bald Mtn. Comment
  UC1152047  Phalaris californica Joseph P. Tracy 1951-7-27 19630 Humboldt near Redcrest Englewood Comment
  UCD88769  Phalaris californica Joseph P. Tracy 1951-7-27 19630 Humboldt At Englewood, near Redcrest. Comment
  HSC56132  Philadelphus californicus G. L. Clifton, Griswold 1979-8-1 11949 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC76556  Philadelphus lewisii W. R. Dudley 1899-6-21 s.n. Humboldt Near Eel River below Dyerville Comment
  CAS-BOT-BC76573  Philadelphus lewisii Alice Eastwood 1921-7-21 10655 Humboldt Carlotta Comment
  CAS-BOT-BC250884  Phleum pratense Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  HSC75481  Phleum pratense J. O. Sawyer 1980-7-18 3628 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC98126  Phleum pratense Cara Witte 2007-6-28 385 Humboldt Forest Service Road 5N10. Approximately 1/2 mile east of intersection with National Forest 1/ Titlow Hill Road. 1426 Comment
  RSA53856  Phleum pratense Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail 1524 Comment
  HSC24107  Phlox adsurgens J. O. Sawyer 1970-6-27 2305 Humboldt Site 318. 1494 Comment
  JEPS79942  Phlox adsurgens Joseph P. Tracy 1932-7-13 10488 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  SEINET12279173  Phlox adsurgens H. P. Chandler 1901-1 1534 Humboldt Klamath River 427 Comment
  HSC70233  Phlox diffusa M. A. Baker 1980-6-8 1895 Humboldt Near Buck Flat. 1554 Comment
  JEPS71120  Phlox gracilis Joseph P. Tracy 1930-5-4 8691 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC1198560  Phlox gracilis Joseph P. Tracy 1932-5-10 9933 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC52845  Phlox gracilis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5789 Humboldt Trinity Summit Comment
  HSC59450  Phoradendron serotinum subsp. tomentosum Kenneth Clark 1979-5-13 280 Humboldt Chezem Rd., off of Hwy. 299, 0.2 mi. W of N end of Chezem Rd. 610 Comment
  SEINET3290581 Image available Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Trinidad, Spruce Cove Comment
  CAS-BOT-BC78200  Picea sitchensis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  RSA85509  Picea sitchensis G. R. Campbell 1954-3-24 19024 Humboldt 23.4 miles N of Petrolia on Old Coast Road toward Ferndale. Comment
  UC55647  Picea sitchensis J. P. Tracy 1901-2-3 Humboldt immediate vicinity of Eureka 0 Comment
  HSC26813  Pinus jeffreyi J. O. Sawyer 1973-3-12 2477 Humboldt SE of Kerr Peak on Manhart Ranch, Bulk Collection # 44 457 Comment
  HSC37669  Pinus jeffreyi R. Sutherland 1967-8-27 27 .876 Humboldt Elk Ridge, Bulk Collection # 107 716 Comment
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Apr 30 2013
  HSC72802  Pinus monticola Gail Newton 1980-6-16 160 Humboldt Near Monks Camp. 1097 Comment
  HSC71802  Pinus sabiniana M. A. Baker 1980-6-26 2380 Humboldt Near Sims Creek 610 Comment
  UC63995  Pinus sabiniana Mrs. M. H. Manning Apr 1 1902-May 1 1902 Humboldt Hupa Comment
  CAS-BOT-BC458133  Pityopus californicus Volney Rattan no date on label; presented 1903 s.n. Humboldt Unspecified Comment
  UC54753  Plagiobothrys nothofulvus Joseph Burtt Davy and Walter C. Blasdale 1899-6-7 5386 Humboldt ridge near Harris; North Coast Ranges Comment
  UC1239612  Plagiobothrys reticulatus Joseph P. Tracy 1935-5-25 13884 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  UC24546  Plagiobothrys reticulatus Harley P. Chandler May, 1901 1172 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  JEPS60994  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1936-6-9 14905 Humboldt Upper Mattole Valley 121 Comment
  JEPS60998  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1937-6-20 15335 Humboldt ten mi up stream from mouth; Bear River 152 Comment
  LA204802  Plagiobothrys scopulorum Joseph P. Tracy; 1935-5-25 13844 Humboldt Fort Seward 106 Comment
  UC1222205  Plagiobothrys scouleri Joseph P. Tracy 1946-5-30 17549 Humboldt 5 mi e Carlotta (Riverside Park on Van Duzen River); Van Duzen River 30 Comment
  POM161948  Plantago hirtella var. galeottiana Joseph P. Tracy 1921-7-10 5849 Humboldt Big Lagoon. 6 Comment
  HSC16844  Plantago lanceolata R. I. Bonn 1965-5-9 38 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC16850  Plantago major Anderson 1961-8-25 1748 Humboldt 1.5 mi. S of Trinidad Comment
  JEPS7158  Plantago maritima var. californica Joseph P. Tracy 1927-6-26 8219 Humboldt Stone Lagoon 6 Comment
  UC585993  Plantago maritima var. californica Joseph P. Tracy 1927-6-26 8219 Humboldt Stone Lagoon 6 Comment
  RSA412592  Plantago purshii var. oblonga H. M. Pollard 1947-8-23 s.n. Humboldt Air Landing Field, west of Orleans. Comment
  HSC70504  Platanthera dilatata var. leucostachys Gail Newton 1980-7-20 1612 Humboldt Near Bell Swamps 1426 Comment
  HSC98895  Platanthera dilatata var. leucostachys Cara Witte 2007-7-20 559 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  HSC40132  Platanthera dilatata var. leucostachys Thomas W. Nelson, James Nelson 1976-7-28 3083 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  UC1037486  Platanthera leucostachys Milo S. Baker 1927-8-21 2480 b Humboldt near Bald Mt. 914 Comment
  CAS-BOT-BC91639  Platystemon californicus Tom Craig 1941-6-29 s.n. Humboldt Samoa, near Eureka. Comment
  CAS-BOT-BC91640  Platystemon californicus Doris K. Kildale 1931-5-24 10847 Humboldt Little Laribee [Larabee], Laribee [Larabee] Valley. Comment
  HSC16801  Platystemon californicus Francis Winter 1960-4-19 Humboldt Samoa Peninsula, Fairhaven Airport entrance, 12 mi. W of Arcata Comment
  HSC45657  Plectritis congesta Diane L. Reed 1978-4-22 26 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  UC169035  Plectritis congesta Joseph P. Tracy 1908-6-8 2625 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC999834  Plectritis congesta S. C. Dyal 1938-6-11 719 b Humboldt 10 mi w of Dinsmore (on McClellan Mountain); McClellan Mountain Comment
  HSC65859  Pleuricospora fimbriolata Gail Newton 1980-6-28 674 Humboldt Near Mad River Butte. 1536 Comment
  HSC57304  Pleuropogon refractus G. L. Clifton 1979-7-31 11859 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  SEINET255064 Image available Poa annua J. P. Tracy 1914-7-5 4548 Humboldt Bald Mtn between High Prairie and Snow Camp Comment
  BLMAR436  Poa confinis Jennifer Anthony-Wheeler 2008-6-18 436 Humboldt Samoa/Malel Dunes 9 Comment
  CAS-BOT-BC255118  Poa confinis Joseph P. Tracy 1927-6-26 8209 Humboldt Stone Lagoon 6 Comment
  CAS-BOT-BC255119  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  SACT001836  Poa confinis Lyle Bibb 1963-5-11 Humboldt Coastal strand amound sandy beach east or Arcata. Sand spit. Comment
  HSC10705  Poa douglasii S. J. Moore 1965-5-9 48 Humboldt Dry Lagoon State Park, near entrance. Comment
  UC594152  Poa douglasii S. K. Harris 1936-6-15 3383 Humboldt Trinidad Head Comment
  UC665695  Poa douglasii H. E. Parks May, 1934 4805 Humboldt Little River Lagoon Comment
  RSA10144  Poa howellii Joseph P. Tracy 1926-5-15 7490 Humboldt Kneeland Prairie 762 Comment
  UC60806  Poa howellii Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5359 B Humboldt near Harris Harris Comment
  UCD91136  Poa howellii A. H. Murphy 1951-2-27 3 Humboldt along the Eel River, near Fort Seward Hotel. Comment
  HSC10722  Poa kelloggii E. W. Styskel 1963-4-20 17 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 305 Comment
  SEINET200573  Poa kelloggii Joseph P. Tracy 1911-6-4 3219 Humboldt Along Little River , Humbolt county , 5 miles from the coast 122 Comment
  HSC104392  Poa kelloggii J. Kalt, Z. Mendoza 1996-6-11 Humboldt Prairie Creek Redwoods Stae Park; 0.25 mi. SW of Elk Prairie Campground Comment
  RSA55251  Poa macrantha W. A. Silveus 1938-7-6 2916 Humboldt Stinson beach Comment
  HSC10768  Poa pratensis N. R. Waite 1965-5-19 42 Humboldt W edge of Humboldt State University campus. Comment
  HSC70247  Poa pratensis M. A. Baker 1980-6-8 1916 Humboldt Near Buck Flat. 1554 Comment
  HSC75699  Poa pratensis Bill Copeland 1980-6-26 565 Humboldt Near Snow Camp Lake 1372 Comment
  SEINET13390783 Image available Poa pratensis A. G. Vestal 1937-6-22 s.n. Humboldt Comment
  UC184172  Poa pratensis subsp. pratensis Joseph P. Tracy 1905-6-4 2186 Humboldt Eureka; Northern Coast Region 0 Comment
  POM303612  Poa secunda J. T. Howell 1944-7-14 19780 Humboldt Plaskett Meadows. Comment
Read comments
Jun 12 2012
  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
  POM204850  Poa secunda W. C. Blasdale, Jos Burtt Davy 1899-6-19 5658 Humboldt Hoopa Summit Comment
  HSC32621  Poa secunda subsp. secunda D. E. Anderson 1965-5-22 3728 Humboldt Hunt Ranch, 3-4 mi. N of Bridgeville. Comment
  HSC40517  Poa secunda subsp. secunda Thomas W. Nelson, Jane P. Nelson 1976-6-22 2876 Humboldt Area at Goat Hill. 1666 Comment
  UCD91732  Poa secunda subsp. secunda Al Murphy 1947-8-1 s.n. Humboldt Horse Mt. Comment
  UCD91738  Poa secunda subsp. secunda A. H. Murphy 1951-4-18 s.n. Humboldt Tooby and Prior Ranch, Blocksburg. 457 Comment
  HSC10788  Poa secunda subsp. secunda D. C. Juve 1964-5-16 55 Humboldt Rousseau Ranch near Kneeland. Comment
  UC1103182  Poa unilateralis Joseph P. Tracy 1904-5-1 2050 Humboldt bluff near Bucksfort; Northern Coast Ranges, Humboldt Bay 0 Comment
  JEPS69885  Polemonium carneum Joseph P. Tracy 1928-5-20 8440 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC1222708  Polemonium carneum Joseph P. Tracy 1950-6-8 18736 Humboldt Bear River Ridge 609 Comment
  CHSC23080  Polygala californica Robert A. Schlising 1963-6-3 2581 Humboldt Coast Ranges. 3.5 miles north of Garberville. Comment
  UC1198990  Polygala cornuta var. cornuta Joseph P. Tracy 1911-7-6 3348 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC35075  Polygala cornuta var. cornuta Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC570808  Polygala cornuta var. cornuta H. L. Mason 1932-7-21 7110 Humboldt on road from Arcata to Weaverville; east slope of Southfork Mountains Comment
  HSC17469  Polygonum aviculare D. E. Anderson 1961-9-13 1822 Humboldt Comment
  HSC99420  Polygonum bistortoides K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 69 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
  HSC55262  Polygonum douglasii Overton, Butler 1979-8-2 12600 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC76039  Polygonum douglasii Overton, Butler 1979-8-2 12577 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  SEINET3405797 Image available Polygonum douglasii Joseph P. Tracy 1932-7-11 10399 Humboldt Trinity Summit, open places at Corral Prairie 1585 Comment
  UC672962  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1933-8-30 13042 B Humboldt Grouse Mountain 1524 Comment
  UC1222470  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1912-7-31 3941 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1676 Comment
  HSC101995  Polygonum douglasii var. douglasii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 894 Humboldt Patterson Meadows 1566 Comment
  CAS-BOT-BC109186  Polygonum paronychia Ira L. Wiggins 1930-7-11 4685 Humboldt Near Samoa. Comment
  SBBG1702  Polygonum paronychia H. and M. Dearing 1939-5-24 3427 Humboldt Cape Mendocino Beach Comment
  CAS-BOT-BC419854  Polygonum polygaloides subsp. confertiflorum Alice Eastwood; John Thomas Howell 1937-6-23 4812 Humboldt Little Van Duzen River Comment
  CDA2925  Polygonum polystachyum T. C. Fuller 1961-9-27 7040 Humboldt Slope of bluff north above mouth of Redwood Creek, 1.5 miles west of Orick. 0 Comment
  UC162921  Polygonum punctatum Joseph P. Tracy 1911-7-8 3473 Humboldt Clover Flat mine Northern Coast Ranges, Valley of Trinity River (along streamlet, near mouth of Willow Creek) 152 Comment
  RSA53825  Polygonum spergulariiforme H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  HSC1102  Polypodium californicum Francis Winter 1960-4-24 Humboldt 1.0 mi. N of Redwood Creek Ranch 396 Comment
  HSC77391  Polypodium californicum L. P. Janeway 1983-4-16 232 Humboldt Near old hwy. 299 on W side of Berry Summit 823 Comment
  CAS-BOT-BC72040  Polypodium calirhiza Alice Eastwood 1907-4-21 5 Humboldt Trinidad Comment
  CAS-BOT-BC76842  Polypodium glycyrrhiza Ira L. Wiggins 1957-6-20 14134 Humboldt Forest, east side of highway, Trinidad. Comment
  CAS-BOT-BC76847  Polypodium glycyrrhiza Doris K. Kildale 1928-12-30 6766 Humboldt Pillipsville Comment
  HSC1108  Polypodium glycyrrhiza T. W. Beck 1963-3-10 11 Humboldt Camp Bauer, Korbel Comment
  HSC39970  Polypodium glycyrrhiza Kurt Hippen, Tom Duebendorfer Humboldt Off Dowes Prairie Rd. 0.25 mi. up Strawberry Cr. Comment
  HSC78979  Polypodium glycyrrhiza L. P. Janeway 1984-12-5 1194 Humboldt N Spit of Humboldt Bay, W side Samoa Rd. near the boat ramp 5 Comment
  UC1746694  Polypodium glycyrrhiza R. M. and A. F. Tryon Jun 1958 5560 Humboldt NW of Weott; S fork of the Eel River Comment
  UC404748  Polypodium glycyrrhiza H. E. Parks June 1924 2837 Humboldt Lawrence Creek Comment
  UC1481768  Polypodium scouleri Mrs. Carlotta C. Hall 1944-8-10 233 Humboldt 10 mi inland above Carlotta (on Van Duzen River and along rd. to Redding) Comment
  UCSB26619  Polypodium scouleri Havlik, Neil 1968-8-21 Humboldt Samoa, west of Eureka 9 Comment
  HSC10829  Polypogon interruptus Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  UC1103193  Polypogon interruptus Joseph P. Tracy 1927-8-7 8320 1/2 Humboldt opposite mouth of Willow Creek Lack Pond (in Trinity River Valley); Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC1440064  Polystichum munitum Danin & H. G. Baker 1960-9-2 658 c Humboldt ca. 2 mi n of Dyerville (High Rock (on W side of Eel River), along Ave. of the Giants) Comment
  UC519316  Polystichum munitum Joseph P. Tracy 1933-7-21 12813 Humboldt 5 mi e Carlotta (Riverside Auto Park on Van Duzen River); North Coast Ranges 60 Comment
  RSA430507  Populus trichocarpa Lyman D. Benson 1928-7-8 411 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  UC492234  Populus trichocarpa Joseph P. Tracy 1932-4-24 9801 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  JEPS42963  Potamogeton amplifolius W. L. Jepson 1936-8-17 17933 Humboldt Mad River near Arcata; Mad River Comment
  RSA152546  Potamogeton foliosus Joseph P. Tracy 1927-8-7 8308 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1099821  Potamogeton pectinatus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1162 a Humboldt 1 mi s of Fields Landing; Eel River Valley Comment
  HSC12699  Potentilla anserina subsp. pacifica Jana Kattenhorn 1970-10-7 12 Humboldt McKinleyville Dunes at end of Murray Rd. Comment
  HSC44511  Potentilla gracilis Brad Klipfel 1973-7-1 115 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC279095  Potentilla gracilis var. gracilis H. E. Parks 1925-6-17 Humboldt Kneeland Comment
  CAS-BOT-BC158495  Potentilla gracilis var. gracilis Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC15467  Prosartes smithii D. A. Shally 1965-5-15 48 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  CAS-BOT-BC517506  Prosartes smithii Carl B. Wolf 1937-9-10 9313 Humboldt 2 miles E of Trinidad on way to Hammond Lumber Co. Camp 20 152 Comment
  HSC15482  Prosartes smithii D. E. Anderson 1961-8-11 1737 Humboldt E of Humboldt State College campus. 30 Comment
  SEINET12044820  Prosartes smithii Unknown 1933-1 3413 Humboldt Dyerville, South Fork of Eel River Comment
  HSC26841  Prunella vulgaris Thomas W. Nelson 1971-1-8 321 Humboldt Ferndale next to Co. Fair Grounds Comment
  HSC96503  Prunella vulgaris subsp. vulgaris Gordon Leppig 1998-8-23 1073 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS62488  Prunella vulgaris var. lanceolata Joseph P. Tracy 1940-9-26 16729 Humboldt Eureka 6 Comment
  UC1196726  Prunella vulgaris var. lanceolata Joseph P. Tracy 1914-5-14 4424 Humboldt Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  UC630493  Prunella vulgaris var. lanceolata H. E. and S. T. Parks July, 1937 24052 Humboldt Spruce Cove Trinidad; , Trinidad Comment
  RSA34246  Prunella vulgaris var. lanceolata L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  UC1288489  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-12-29 688 Humboldt on Eel River s Meyer's Flat (Eagle Point); Eel River Comment
  UC1196729  Prunella vulgaris var. vulgaris Joseph P. Tracy 1925-11-8 7307 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  HSC97488  Prunus emarginata C. Witte 2007-5-18 41 Humboldt Intersection to Grouse Mountain Lookout. 1644 Comment
  CAS-BOT-BC357271  Pseudognaphalium microcephalum Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UC1193111  Pseudotsuga menziesii P. Zinke 1950-8-3 145 Humboldt 3 mi s of Harris; Quad. 29D3 914 Comment
  HSC55105  Pseudotsuga menziesii var. menziesii G. L. Clifton 1979-7-31 11847 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC74279  Pseudotsuga menziesii var. menziesii M. A. Baker 1980-5-23 1398 Humboldt Near Buck Mtn. 1524 Comment
  UC1174841  Pseudotsuga menziesii var. menziesii P. C. Everett and E. K. Balls 1959-10-25 23971 Humboldt 7 mi sw from Ferndale (along Old Coast Road to Capetown.); Old Coast Road 563 Comment
  JEPS60088  Pteridium aquilinum var. pubescens Lincoln Constance 1934-6-13 876 Humboldt Bull Creek Region, S. Fork Eel R. Comment
  UC1222157  Pyrola asarifolia Joseph P. Tracy 1951-6-24 19534 Humboldt near intersection of Butter Valley Road with Kneeland Road Comment
  HSC41292  Pyrola dentata Brad Klipfel 1974-7-27 491 Humboldt Horse Mtn. Comment
  HSC74286  Pyrola dentata M. A. Baker 1980-7-11 2780 Humboldt Near Red Mtn. 1341 Comment
  UC1197578  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit near Corral Prairie; Trinity Summit 1584 Comment
  JEPS37485  Quercus chrysolepis W. L. Jepson 1902-6 1886 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  UC535725  Quercus chrysolepis Eleanor Armstrong 1934-8-22 1183 Humboldt Richardson Grove 121 Comment
  UC5535  Quercus chrysolepis unknown 1867-6-17 Humboldt Elk Ridge Comment
  UC54712  Quercus garryana P. E. Goddard 1901-7-12 68 Humboldt Hupa Comment
  UC54718  Quercus kelloggii P. E. Goddard 1901-7-12 64 Humboldt Hupa Comment
  UCD47238  Quercus sadleriana Gilbert Jerome Muth 1972-8-15 1845 Humboldt Near Big Hill Road, Humboldt County, California. Hoopa Quad. 167 mm from bottom margin, 258 mm from left margin. SLID No. 6941, Herb Acc No. 00011257. 1431 Comment
  CAS-BOT-BC104535  Quercus vacciniifolia Carl B. Wolf 1927-8-28 1173 Humboldt On grade 9 mi from Willow Creek, Lord Ellis Road to Blue Lake Comment
  HSC55117  Quercus vacciniifolia Gilbert Muth 1979-8-1 11892 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC55168  Quercus vacciniifolia Gilbert Muth 1979-8-1 12162 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  SEINET3130963  Quercus vacciniifolia Unknown 1948-9-3 1851 Humboldt Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine, Six Rivers National Forest 1463 Comment
  UC1196505  Quercus wislizeni Joseph P. Tracy 1925-8-23 7246 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  HSC26276  Ranunculus aquatilis var. diffusus Thomas W. Nelson 1971-5-29 453 Humboldt E side of the Big Bend Rd. near Maple Creek Comment
  UC668067  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1935-5-25 13882 Humboldt Dobbyn Creek; bed of dried-up pond 152 Comment
  JEPS5885  Ranunculus bulbosus Joseph P. Tracy 1938-7-15 16080 Humboldt near Grizzly Bluff; Eel River Valley 15 Comment
  HSC79359  Ranunculus californicus Kenneth Clark 1980-3-22 521 Humboldt Ridge above Dead Man's Gulch 152 Comment
  POM269619  Ranunculus flammula var. ovalis Joseph P. Tracy 1937-7-17 15436 Humboldt Eureka. 46 Comment
  UC162341  Ranunculus muricatus Joseph P. Tracy 1911-5-17 3185 Humboldt Eureka Northern Coast Region 0 Comment
  UCD96220  Ranunculus muricatus Linda M. Barker 1976-4-30 1404 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC162863  Ranunculus occidentalis Joseph P. Tracy 1908-6 2689 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1222571  Ranunculus occidentalis Joseph P. Tracy 1951-5-6 19396 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  HSC102107  Ranunculus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1010 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC45624  Ranunculus occidentalis var. occidentalis Diane L. Reed 1978-4-22 11 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC68716  Ranunculus orthorhynchus Jacqueline Greenleaf 1980-5-23 89 Humboldt Near Dinsmores 735 Comment
  SD90193  Ranunculus orthorhynchus var. orthorhynchus Benjamin C. Stone 1952-6-23 Humboldt Redwood Forest, wet open places on Coast Hwy. 101 20 miles south of Klamath 46 Comment
  POM269707  Ranunculus orthorhynchus var. platyphyllus W. R. Dudley 1899-1 s.n. Humboldt Arcata Comment
  UC249652  Ranunculus parviflorus Joseph P. Tracy 1922-5-21 6053 Humboldt Blue Lake Northern Coast Ranges (depression by roadside) 30 Comment
  UC1196221  Ranunculus repens Joseph P. Tracy 1918-4-7 4868 Humboldt Little River Northern Coast Ranges (mouth) 30 Comment
  HSC18177  Ranunculus repens var. repens L. H. Myers 1963-4-19 44 Humboldt Dunes W of Lanpheres Rd., Mad River slough area Comment
  UC1196271  Ranunculus uncinatus J. P. Tracy 1901-5-12 1076 Humboldt Immediate vicinity of Eureka 0 Comment
  UC162816  Ranunculus uncinatus J. P. Tracy 1910-5-8 3133 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC59688  Raphanus sativus George Kirn 1977-9-10 Humboldt Eureka, G and 1st St. 8 Comment
  RSA32664  Rhamnus californica Doris K. Kildale 1927-7-3 s.n. Humboldt Willow Creek Flat. Comment
  UC61090  Rhamnus californica subsp. californica Mrs. M. H. Manning oct 1901 Humboldt near Hupa Comment
  RSA171022  Rhamnus californica subsp. occidentalis Robert F. Thorne 1957-9-2 19008 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC199231  Rhamnus purshiana V. King Chesnut Jul 1888 Humboldt Mad River Comment
  HSC23118  Rhododendron columbianum Norman Dennis 1965-6-3 143 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  HSC76365  Rhododendron macrophyllum Denis Kearns 1981-7-6 66 Humboldt Near Mosquito Lake 1256 Comment
Read comments
Jul 30 2014
  HSC7873  Rhododendron macrophyllum P. Markle 1962-5-22 54 Humboldt End of 18th St., Arcata Community Forest Comment
  SBBG5558  Rhododendron occidentale M. J. Cody 1938-7-14 Humboldt 2 mi N of Trinidad Comment
  HSC97159  Ribes binominatum Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 8 Humboldt 12.5 mi. S of Hwy. 299 on USFS Rd. NF1 1555 Comment
  RSA170225  Ribes bracteosum Joseph P. Tracy 1918-5-28 4939 Humboldt High Prairie Creek. 915 Comment
  RSA273318  Ribes bracteosum M. A. Baker 1977-4-23 174 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  RSA152409  Ribes inerme Joseph P. Tracy 1941-3-26 16813 Humboldt Lack Pond: in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  UC667074  Ribes inerme var. klamathense Joseph P. Tracy 1939-5-14 16297 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  JEPS49366  Ribes lacustre P. E. Goddard 1901-7 125 Humboldt Trinity Summit Trail Comment
  CAS-BOT-BC176803  Ribes laxiflorum H. E. Parks; S. T. Parks 1937-6-4 24004 Humboldt Along Prairie Creek at Valley Green Comment
  UC154117  Ribes laxiflorum J. P. Tracy 1909-4-18 2951 Humboldt immediate vicinity Eureka 0 Comment
  UC154154  Ribes laxiflorum Harley P. Chandler May, 1901 1171 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC48833  Ribes lobbii Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 46 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  RSA0021632  Ribes malvaceum L. R. Abrams, R. C. Bacigalupi 1922-6-25 8293 Humboldt Bluffs north of Big Lagoon. Comment
  HSC102025  Ribes marshallii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 926 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  UC154122  Ribes menziesii J. P. Tracy 1904-7-31 2131 Humboldt immediate vicinity Eureka 0 Comment
  UC1541331  Ribes menziesii Harold E. Parks April 1933 4402 Humboldt vicinity Trinidad (type locality) Comment
  HSC53912  Ribes nevadense Griswold, Butler 1979-7-11 6922 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  JEPS79967  Ribes roezlii var. cruentum Joseph P. Tracy 1930-7-25 8885 Humboldt Trinity River Valley at Willow Creek Trinity River Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  UC249624  Ribes roezlii var. cruentum Joseph P. Tracy 1922-4-30 6041 Humboldt Three Creeks, along road between Three Creeks and mouth of Willow Creek Northern Coast Ranges 670 Comment
  UCD102482  Ribes roezlii var. cruentum Roman Gankin 1965-8-5 544 Humboldt Horse Mountain Road, 5.2 miles north of junction with Shelter Cove Road. Comment
  CHSC68499  Ribes sanguineum var. glutinosum Vernon H. Oswald 1997-4-10 8323 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  UCD102493  Ribes sanguineum var. glutinosum Linda M. Barker 1976-3-11 1323 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC13750  Romanzoffia californica Doris K. Kildale 1926-3-21 1574 Humboldt Kneeland Prairie Comment
  HSC100077  Rosa gymnocarpa T. Jimerson, J. Pageau 1979-7-31 704 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  HSC72825  Rosa gymnocarpa M. A. Baker 1980-6-26 2437 Humboldt Near Sims Creek 393 Comment
  HSC81926  Rosa gymnocarpa Thomas W. Nelson, Jane P. Nelson 1979-7-3 4953 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UC162330  Rosa gymnocarpa Joseph P. Tracy 1911-7-7 3428 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow and Campbell Creeks, near summit) 1219 Comment
  CAS-BOT-BC146841  Rosa nutkana L. R. Abrams 1916-7-20 6146 Humboldt Between Eureka and Alton Comment
  CDA26285  Rosa nutkana P. Haggard 1993-8-9 Humboldt Blue Lake. 0 Comment
  HSC31638  Rosa nutkana Glenn McGourty 1974-6-1 84 Humboldt Comment
  HSC44122  Rosa nutkana Linda M. Barker, Thomas F. Lyon 1977-5-8 1715 Humboldt 3 mi. W of Arcata in S pasture Comment
  HSC98782  Rosa nutkana Cara Witte 2008-6-27 770 Humboldt Approximately 1/2 mile north of White Oak Opening on National Forest 1. 1242 Comment
  UC12845  Rosa nutkana subsp. macdougalii J. Burtt Davy 1899-6-13 5492 Humboldt along river near Camp Grant; Eel River Comment
  UC1199022  Rosa nutkana var. nutkana J. P. Tracy 1901-6-23 1163 Humboldt immediate vicinity of Eureka 0 Comment
  UC303026  Rosa nutkana var. nutkana Joseph P. Tracy 1923-6-22 6345 Humboldt Angels Ranch Bald Mt.; Northern Coast Ranges, Bald Mt. 457 Comment
  HSC19675  Rubus armeniacus R. T. Haase 1965-5-3 30 Humboldt Parking lot behind Mai Kai Apts. Comment
  JEPS44732  Rubus lasiococcus Joseph P. Tracy 1932-7-16 10640 Humboldt in fir woods near Corral Prairie; Klamath Mountains, Trinity Summit, nr Corral Prairie 1524 Comment
  HSC19659  Rubus parviflorus W. R. Brigham 1962-5-20 15 Humboldt Side of Old Hwy. 101, N of Big Lagoon rd. Comment
  HSC31795  Rubus parviflorus Steve Selva, Roger Jensen 1974-8-28 98 Humboldt Behind Humboldt State University, Arcata. Comment
  HSC57680  Rubus parviflorus G. L. Clifton, Griswold 1979-7-25 10886 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC99433  Rubus parviflorus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 82 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET4948924  Rubus parviflorus Unknown 1938-8-6 15397 Humboldt Eureka Comment
  JEPS47287  Rubus praecox H. E. Parks and Joseph P. Tracy 1932-8-13 10347 Humboldt 3 mi e Trinidad; Northern Coast Region 60 Comment
  RSA183527  Rubus spectabilis M. L. Stuart 1965-4-25 20 Humboldt About 100 yards up the Fern Lake Road. Comment
  CAS-BOT-BC158789  Rubus ursinus C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC19693  Rubus ursinus N. D. Dennis 1965-5-5 53 Humboldt 1 mi. N of Trinidad on Hwy. 101 Comment
  HSC19696  Rubus ursinus Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  CAS-BOT-BC421936  Rumex acetosella Doris K. Kildale 1925-8-17 1239 Humboldt Trinity Summit - near Waterdog Lake. 1828 Comment
  HSC98533  Rumex acetosella Cara Witte 2008-8-6 1015 Humboldt Board Camp Mountain. 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 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
  HSC78986  Rumex crispus L. P. Janeway 1984-5-16 802 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 3 Comment
  UC249658  Rumex maritimus Joseph P. Tracy 1921-8-7 5867 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  UC672927  Rumex occidentalis Joseph P. Tracy 1936-6-3 14854 Humboldt near Lack Pond; Trinity River Valley, Willow Creek 152 Comment
  HSC35617  Rupertia physodes Thomas W. Nelson, B. Reinhardt 1975-7-30 2112 Humboldt The road out Whiting Ridge at Whiting Spring Comment
  SEINET12155885  Rupertia physodes J. P. Tracy 1950-1 18783 Humboldt Jenk's Ranch. Mail Ridge, N of Harris 7 mi Comment
  UC902094  Sagina saginoides Joseph P. Tracy 1947-8-24 17918 Humboldt near Box Camp Trinity Summit 1676 Comment
  CAS-BOT-BC132706  Salix A. T. Whittemore 1980-3-15 80 -003 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  UC490571  Salix exigua Joseph P. Tracy 1932-10-8 10868 Humboldt at Willow Creek Trinity R.; Northern Coast Ranges, Trinity R. Valley 152 Comment
  SBBG29091  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1335 Humboldt above Trinity River, 1 mi below bridge on Trinity Hwy 152 Comment
  UC469443  Salix exigua var. hindsiana Joseph P. Tracy 1931-9-7 9642 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC107701  Salix hookeriana Harold E. Parks 1931-5-12 954 Humboldt Samoa, Humboldt Bay Comment
  CHSC96697  Salix hookeriana Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC20066  Salix hookeriana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1231 Humboldt Van Duzen River, 1.5 mi. E of Alton 30 Comment
  HSC90382  Salix hookeriana Jean Hanson 1980-3-8 1 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96609  Salix hookeriana Gordon Leppig 2005-4-8 2211 Humboldt W end of W Hawthorne St., Eureka 3 Comment
  POM362593  Salix hookeriana H. E. Parks 1931-08 1053 Humboldt Little River Lagoon. 0 Comment
  SD937  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC1196681  Salix hookeriana Joseph P. Tracy 1919-3-30 5123 Humboldt Jacoby Creek Northern Coast Ranges, around Humboldt Bay (near the quarry) 91 Comment
  UC1356324  Salix hookeriana Theodore J. Crovello 1965-4-8 676 Humboldt along Somoa Rd about 200 ft n Samoa Club Comment
  UC275501  Salix hookeriana Joseph P. Tracy 1925-11-15 7314 Humboldt lowlands at foot of Table Bluff (near Salmon Creek); Northern Coast Ranges, Humboldt Bay 6 Comment
  UC429548  Salix hookeriana Joseph P. Tracy 1904-7-17 2124 C Humboldt near Hydesville Hydesville; Northern Coast Region 60 Comment
  UC481271  Salix hookeriana Harold E. Parks 1931-5-28 1018 Humboldt Little River Lagoon Comment
  UC490456  Salix hookeriana Joseph P. Tracy 1932-5-10 9954 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC512104  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1208 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC519326  Salix hookeriana Joseph P. Tracy 1933-10-8 13089 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges 91 Comment
  JEPS14791  Salix jepsonii Joseph P. Tracy 1933-7-16 12773 Humboldt meadow at McKay Camp S. Fork Mt.; Northern Coast Ranges 1676 Comment
  RSA034888  Salix laevigata H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eeel River. Comment
  HSC40871  Salix lasiandra Linda M. Barker 1976-9-3 1690 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC519383  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1933-5-14 12179 Humboldt at Willow Creek bridge Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CHSC9560  Salix lasiolepis E. L. Smith 1971-4-7 930 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  HSC19997  Salix lasiolepis J. P. Tracy 1933-3-19 10934 Humboldt Bridgeville, along Van Duzen River 229 Comment
  HSC98670  Salix lasiolepis Cara Witte 2008-7-10 858 Humboldt Along National Forest 1 on Kinsey Ridge. 1/4 mile from Forest Service Road 4N06. 1241 Comment
  JEPS12967  Salix lasiolepis Joseph P. Tracy 1931-9-26 9696 Humboldt at Redwood Creek Berry's; Northern Coast Ranges 274 Comment
  SJSU222  Salix lasiolepis H. E. Parks 1931-5-14 963 Humboldt Van Duzen R between Alton & Carlotta 15 Comment
  UC1196621  Salix lasiolepis Joseph P. Tracy 1926-9-19 7802 Humboldt Valley of S. Yager Creek Northern Coast Ranges, Valley of S. Yager Creek 762 Comment
  UC275494  Salix lasiolepis Joseph P. Tracy 1925-6-28 7154 Humboldt Redwood Creek, at Berry's Comment
  UC469411  Salix lasiolepis Joseph P. Tracy 1927-4-10 7886 Humboldt Redwood Creek, at Berry's 274 Comment
  UC469437  Salix lasiolepis Joseph P. Tracy 1931-10-12 9731 Humboldt Dinsmore's Ranch Northern Coast Ranges, Van Duzen River (opposite Buck Mt.) 670 Comment
  UC481338  Salix lasiolepis Harold E. Parks 1931-10-15 1076 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 75 Comment
  UC506394  Salix lasiolepis Joseph P. Tracy 1932-6-19 10244 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope, in gully) 762 Comment
  UC511971  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1253 Humboldt 2 mi. e. of Redwood Hwy. and above Blue Lake Rd. Engelhart gravel pit (floodplain of Mad R.); Mad River Comment
  UC512044  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1317 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC512113  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1203 Humboldt 4 1/2 mi. s. Trinidad (Little R. Lagoon); Little R. Lagoon Comment
  UCD111583  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-13 01254 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road. Comment
  UCSB11963  Salix lasiolepis Ball, Carleton; Parks, Harold; Tracy, Joseph 1932-5-13 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107412  Salix lasiolepis var. lasiolepis Alice Eastwood 1907-4-21 24 Humboldt Trinidad Comment
  CAS-BOT-BC107414  Salix lasiolepis var. lasiolepis Henry M. Pollard 1945-9-4 s.n. Humboldt near Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC107417  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-7-27 2220 Humboldt Laribee Valley 701 Comment
  CAS-BOT-BC125608  Salix melanopsis Doris K. Kildale 1926-8-15 2516 Humboldt Willow Creek, flat in Trinity River Valley Comment
  CAS-BOT-BC125609  Salix melanopsis Joseph P. Tracy 1911-7-4 3295 Humboldt Along Willow Creek (Tributary of Trinity River) near its mouth 182 Comment
  JEPS12942  Salix melanopsis Joseph P. Tracy 1931-6-14 9582 Humboldt Van Duzen River Alton; Northern Coast Region 30 Comment
  JEPS12971  Salix melanopsis Joseph P. Tracy 1931-9-19 9681 Humboldt Van Duzen River bar Alton; Northern Coast Region 30 Comment
  POM219538  Salix melanopsis H. E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge. Trinidad. 75 Comment
  SBBG57953  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 967 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  SD914  Salix melanopsis Harold E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  UC1196637  Salix melanopsis Joseph P. Tracy 1932-8-27 10746 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC469446  Salix melanopsis Joseph P. Tracy 1931-5-3 9343 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC469461  Salix melanopsis Joseph P. Tracy 1931-10-3 9704 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC481171  Salix melanopsis Harold E. Parks 1931-8-25 1061 Humboldt Van Duzen R. Blue Slide; , Blue Slide 90 Comment
  UC519379  Salix melanopsis Joseph P. Tracy 1933-5-20 12260 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  RSA0030801  Salix parksiana H. E. Parks 1931-5-14 0961 Humboldt Ban Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC129248  Salix piperi Joseph P. Tracy 1937-8-12 15658 Humboldt Snow Camp, most gourn in and around meadow. 1402 Comment
  CAS-BOT-BC129249  Salix piperi Joseph P. Tracy 1941-3-9 16800 Humboldt Camp Grant, along Eel River 48 Comment
  CAS-BOT-BC129126  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC129142  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  CAS-BOT-BC129158  Salix scouleriana Joseph P. Tracy 1937-3-21 15238 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  CAS-BOT-BC129159  Salix scouleriana Joseph P. Tracy 1937-3-21 15237 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  JEPS13087  Salix scouleriana Joseph P. Tracy 1937-2-21 15230 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  UC481332  Salix scouleriana Harold E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 150 Comment
  CAS-BOT-BC128958  Salix sitchensis John H. Thomas 1966-3-19 11483 Humboldt Near Westhaven Drive and highway 101, Trinidad 60 Comment
  CAS-BOT-BC128959  Salix sitchensis Joseph P. Tracy 1933-7-16 12773 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1676 Comment
  CHSC13719  Salix sitchensis E. L. Smith 1971-8-17 1020 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  HSC20101  Salix sitchensis C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-13 1256 Humboldt Mad River at Engelhart gravel pit, 2 mi. E of Redwood Hwy. and above Blue Lake Rd. Comment
  HSC90388  Salix sitchensis Jean Hanson 1980-3-8 7 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90465  Salix sitchensis Jean Hanson 1980-4-12 33 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  POM219568  Salix sitchensis H. E. Parks 1931-3-24 910 Humboldt Trinidad. 90 Comment
  UC1225790  Salix sitchensis Joseph P. Tracy 1948-4-11 17972 Humboldt 3 mi. e. Dyerville (Eel R.); Eel R. 60 Comment
  UC1225919  Salix sitchensis Joseph P. Tracy 1942-7-26 17295 Humboldt near the Redwood House S. Yager Creek 609 Comment
  UC481381  Salix sitchensis Harold E. Parks 1931-3-26 906 Humboldt on Van Duzen R. Alton; Van Duzen R., Alton 15 Comment
  UC506372  Salix sitchensis Joseph P. Tracy 1933-5-7 12154 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UCD111910  Salix sitchensis Harold E. Parks 1931-3-25 0903 Humboldt Orick, Van Duzen River. 6 Comment
  UCSB26078  Salix sitchensis Crovello, Theodore 1964-6-24 Humboldt Along Lost Man Creek 100 yards west of junction with U.S. 101 j 2.5 miles south of turnoff from U.S. 101 for Prairie Creek Redwoods State Park Comment
  SEINET4855902  Salix tracyi Unknown 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  UC585975  Salpichroa origanifolia Joseph P. Tracy 1933-8-22 12972 Humboldt Eureka; Northern Coast Ranges 0 Comment
  RSA24053  Sambucus callicarpa C. B. Wolf 1941-2-22 9918 Humboldt Along Redwood Highway 2.8 miles south of Patricks Point State Park 30 Comment
  JEPS12741  Sambucus mexicana Lincoln Constance 1934-6-6 829 Humboldt fire trail <from> Dyerville to Horse Prairie (and return); South Fork Eel River, Bull Creek Region Comment
  HSC41198  Sambucus nigra subsp. caerulea Thomas W. Nelson, Jane P. Nelson 1977-7-4 3590 Humboldt Along road N of Alder Springs. 1524 Comment
  HSC57090  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-24 9804 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UCR3517  Sambucus racemosa David Whistler, H. M. Whistler 1964-7-31 640801- 01 Humboldt North Coast, 0.2 mi. south of Prairie Creek Redwoods State Park, along US Hwy 101, and Prairie Creek [Camp Rd.?] 10 Comment
  HSC58080  Sambucus racemosa var. racemosa G. L. Clifton, Griswold 1979-8-1 11984 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  JEPS13394  Sambucus racemosa var. racemosa Joseph P. Tracy 1932-7-14 10570 Humboldt ridges e Corral Prairie; Trinity Summit 1676 Comment
  UCD137261  Sambucus racemosa var. racemosa Joseph P. Tracy 1947-8-24 17912 Humboldt Trinity Summit, east of Box Camp. 1676 Comment
  SDSU2915  Sambucus racemosa var. racemosa Leslie Hickson 1990-4-15 15 IV90D Humboldt Across the street from the Oak Street and Apple Valley Lane junction. Eureka. Comment
  UC154205  Sanguisorba annua Joseph P. Tracy 1908-6 2816 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1199041  Sanguisorba officinalis subsp. microcephala Joseph P. Tracy 1938-9-25 16167 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  HSC21610  Sanicula arctopoides S. J. Hawks 1965-3-12 1 Humboldt W of Eureka Airport Comment
  POM256866  Sanicula arctopoides Joseph P. Tracy 1936-5-30 14838 Humboldt Near Samoa on Humboldt Bay. 6 Comment
  UC154105  Sanicula arctopoides J. P. Tracy 1901-4-14 1018 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  UC1197109  Sanicula bipinnatifida Joseph P. Tracy 1927-5-8 7989 Humboldt Garberville 152 Comment
  UC154131  Sanicula bipinnatifida Joseph P. Tracy 1909-8-1 3056 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC74740  Sanicula crassicaulis Gail Newton 1981-8-5 2361 Humboldt Near Bug Creek, E Fork. 820 Comment
  HSC81923  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1979-7-3 4963 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek roads. 610 Comment
  UC1222746  Sanicula crassicaulis Joseph P. Tracy 1950-7-6 19023 Humboldt 3 mi s of Burr Valley (Sproston's Place); Sproston's Place 1066 Comment
  HSC21636  Sanicula crassicaulis D. E. Anderson 1962-5-1 2193 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  HSC55730  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10214 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  HSC55755  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10289 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC56221  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-8-2 12249 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC74223  Sanicula graveolens M. A. Baker 1980-7-19 3016 Humboldt Near Bret Hole. 1814 Comment
  HSC100693  Sanicula menziesii Carl C. Marshall Jun 1887 477 Humboldt Harris. Comment
  HSC74373  Sanicula tuberosa M. A. Baker 1980-6-28 2501 Humboldt Near Mad River Buttes 1445 Comment
  UC1368468  Sanicula tuberosa R. K. Gierisch and D. H. Esplin 1969-7-1 3531 Humboldt Six Rivers Forest/Experimental Area, Grouse Mt. Grouse Mt.; Six Rivers Forest/Experimental Area, Grouse Mt. 1584 Comment
  RSA0101647  Sceptridium multifidum Doris K. Kildale 1937-8-26 15341 Humboldt Christmas Prairie. Comment
  RSA91475  Schoenoplectus maritimus F. W. Peirson 1923-7-11 4271 Humboldt Flats north of Eureka Comment
  RSA18606  Scirpus microcarpus Carl B. Wolf 1937-9-11 9324 Humboldt Redwood Highway, 3 miles N of Orick at Davison s Ranch on Prairie Creek. 61 Comment
  UC668017  Scirpus pungens Joseph P. Tracy 1927-9-25 8368 Humboldt at Eureka (near bay shore) 6 Comment
  UC668005  Scirpus tabernaemontani H. E. Parks and Joseph P. Tracy 1931-5-17 9421 Humboldt Lack Pond Trinity River Valley, Lack Pond (opposite Willow Creek) 152 Comment
  RSA183587  Scoliopus bigelovii R. D. Zortman 1963-3-16 13 Humboldt 5 miles northeast of Arcata; south of the Mad River, off Warren Creek Road. 91 Comment
  SEINET4673868  Scoliopus bigelovii Richard R. Halse 2013-3-28 8766 Humboldt Along U.S. Hwy. 101 ca. 2.2 miles south of Exit 671 to Pepperwood.; 0 76 Comment
  SEINET8501887  Scoliopus bigelovii R. R. Halse 2013-3-28 8766 Humboldt Along US Hwy. 101 ca. 2.2 miles S of Exit 671 to Pepperwood. 76 Comment
  HSC15635  Scoliopus bigelovii D. E. Anderson 1962-3-17 1938 Humboldt Comment
  HSC21129  Scrophularia californica D. E. Anderson 1961-8-11 1734 Humboldt Redwood preserve E of HSU campus 30 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
  UC1409052  Scrophularia californica subsp. californica Robert F. Thorne and P. Everett 1965-8-9 35314 Humboldt Clam Beach County Park 3 Comment
  HSC98722  Scutellaria antirrhinoides Cara Witte 2008-7-16 918 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC577340  Scutellaria californica Joseph P. Tracy 1937-7-11 15423 Humboldt vicinity of Garberville 121 Comment
  UC1239698  Scutellaria tuberosa Joseph P. Tracy 1939-5-6 16278 Humboldt Trinity River Valley, Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC63879  Sedum laxum subsp. heckneri Joseph P. Tracy 1935-7-30 14363 Humboldt Salmon summit. 1767 Comment
  HSC41479  Sedum laxum subsp. heckneri M. A. Baker 1977-6-13 383 Humboldt 4 mi. S of new confluence of the Klamath River and Bluff Creek Comment
  HSC59361  Sedum laxum subsp. heckneri M. A. Baker 1979-7-8 621 Humboldt 2 km S of the junction of the roads to Blue Creek Mtn. and Onion Lake 1400 Comment
  HSC57176  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-26 9997 Humboldt Near Willow Creek 1341 Comment
  HSC57458  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-26 10290 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC57647  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-25 10817 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC14450  Sedum radiatum Chestnut and Drew 1888-7-9 Humboldt Campbell's Comment
  UC2046852  Sedum spathulifolium R. E. Brainerd with N. Otting 2012-6-9 2042 Humboldt Humboldt County: Pine Ridge Road, headwaters of Lacks Creek drainage; ca. 17.5 air miles east-northeast of Arcata. 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
  UC201252  Senecio aronicoides Chestnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  UC1118078  Senecio glomeratus H. L. Person 1932-7-16 Humboldt hwy n of Trinidad; Rock Point Quadrangle Comment
  HSC74376  Senecio integerrimus M. A. Baker 1980-6-28 2481 Humboldt Near Mad River Buttes 1445 Comment
  UC581707  Senecio integerrimus var. major Joseph P. Tracy 1932-7-12 10430 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1223149  Senecio integerrimus var. major Joseph P. Tracy 1946-5-19 17537 Humboldt near Ashland Butte; Kneeland Prairie 762 Comment
  CDA7631  Senecio jacobaea E. Eberwein 1958-9-4 1197 -58 Humboldt William Lowry property, Bear River, Ferndale. 0 Comment
  SBBG29108  Senecio minimus H. E. Parks -Sep-1931 1058 Humboldt Trinidad 250 Comment
  UCD135598  Senecio minimus P. B. Kennedy 1925-8-29 s.n. Humboldt northeast Eureka. Comment
  UCD135607  Senecio minimus R. Tofsrud 1949-7-1 s.n. Humboldt Ferndale, Wildcat grade. Comment
  HSC102598  Senecio triangularis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1585 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC53962  Senecio triangularis Griswold, Butler 1979-7-11 7015 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC57636  Senecio triangularis G. L. Clifton, Griswold 10794 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1814 Comment
  RSA167391  Senecio triangularis Joseph P. Tracy 1950-7-31 19241 Humboldt Northeast side of top of Grouse Mountain. 1524 Comment
  JEPS48279  Sequoia sempervirens Lincoln Constance 1934-6-4 822 Humboldt road to Dyerville (Look Prairie and Bull Cr.); Bull Creek region, South Fork Eel River Comment
  NY64461  Sequoia sempervirens J. P. Tracy 1940-10-17 16770 Humboldt Dyerville Comment
  UC1076381  Sequoia sempervirens H. MacGinitie 1932-6-7 Humboldt Comment
  CAS-BOT-BC85846  Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-1-16 s.n. Humboldt Along State Route 299 from Arcata to Redding, Domonstration Forest, Simpson Timber Company. Comment
  SEINET5716898 Image available Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-1 s.n. Humboldt Along State Route 299 from Arcata to Redding; Demonstration Forest, Simpson Timber Company.; Arcata Comment
  HSC100571  Sidalcea diploscypha Carl C. Marshall Jun 1887 467 Humboldt S Humboldt. Comment
  CAS-BOT-BC205568  Sidalcea malachroides Doris K. Kildale 1927-7-2 3628 Humboldt Lord-Ellis road Comment
  CAS-BOT-BC205570  Sidalcea malachroides A. M. Vollmer; L. Beane 1951-6-11 136 Humboldt Yager Creek Road, on way to Carlotta Comment
  CAS-BOT-BC205575  Sidalcea malachroides Alice Eastwood; John Thomas Howell 1937-6-23 4855 Humboldt 8 miles from Korbel on road to Maple Creek Comment
  UC18701  Sidalcea malachroides J. Burtt Davy 1899-6-13 5482 Humboldt Englewood Prairie North Coast Ranges, Englewood Prairie Comment
  CAS-BOT-BC205569  Sidalcea malachroides Volney Rattan 1878-1-1 s.n. Humboldt Redwood Cr. Comment
  SEINET11994388  Sidalcea malachroides F. H. Utech 1986-1 86 -399 Humboldt ca 3 mi NW of Petrolla on Mattole Road (Humboldt County F3C) enroute to Capetown 80 Comment
  UCR45396  Sidalcea malviflora D. K. Imper 1985-6-18 s.n. Humboldt Six Rivers National Forest, just south of junction of 10N01 and 10N03, south of Orleans. 854 Comment
  HSC62693  Sidalcea malviflora Michelle Stevens 1979-5-25 139 Humboldt Junction of Hwy. 96 and the GO Rd. 640 Comment
  RSA87998  Sidalcea malviflora C. L. Hitchcock 1952-6-28 19639 Humboldt Dow s Prairie, 4 miles N. of Arcata, Comment
  HSC57355  Sidalcea malviflora subsp. nana Overton, Butler 1979-7-26 10047 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UC1197975  Sidalcea malviflora subsp. patula J. P. Tracy 1901-6-16 1148 Humboldt bluff at Bucksport (immediate vicinity of Eureka); vicinity of Eureka, Bluff at Buckport 0 Comment
  UC902191  Sidalcea malviflora subsp. patula Harold E. Parks May 1949 Humboldt Bear River Ridge 609 Comment
  CDA36500  Sidalcea oregana subsp. hydrophila T. C. Fuller 1958-6-17 598 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC57879  Sidalcea oregana subsp. spicata Overton, Butler 1979-7-31 11416 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC668100  Silene californica Joseph P. Tracy 1935-6-23 13997 Humboldt French Camp Ridge 1066 Comment
  RSA47141  Silene californica Doris K. Kildale 1925-3-29 617 Humboldt Alton hill. Comment
  HSC58156  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-8-2 12208 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC44538  Silene campanulata subsp. greenei Brad Klipfel 1973-7-15 154 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC387080  Silene gallica H. E. Parks; S. T. Parks 1936-6-1 5634 Humboldt Spruce Cove, Trinidad Comment
  UC668082  Silene grayi Joseph P. Tracy 1932-7-12 10477 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  UC162886  Silene hookeri Harley P. Chandler June, 1901 1539 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  HSC41324  Silene laciniata subsp. californica Brad Klipfel 1974-8-2 517 Humboldt Horse Mtn. Comment
  UC668088  Silene lemmonii Joseph P. Tracy 1933-7-25 12870 Humboldt Grouse Mountain 1524 Comment
  UC160974  Sisymbrium officinale Joseph P. Tracy 1908-6 2808 Humboldt Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges 762 Comment
  HSC26642  Sisymbrium officinale Thomas W. Nelson 1971-5-9 432 Humboldt Hwy. 36 opposite Goat Rock, 2 mi. W of Bridgeville Comment
  UC1108989  Sisyrinchium bellum H. E. and S. T. Parks June, 1936 5599 Humboldt Spruce Cove; Trinidad Comment
  HSC90646  Sisyrinchium californicum Gail Newton 1983-6-5 3553 Humboldt Elk River Wildlife Area, Eureka Comment
  JEPS86131  Smilacina racemosa Wayne Roderick 1966-5-7 Humboldt 5 mi e Carlotta 30 Comment
  UC1541352  Smilacina stellata W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  UC666971  Smilacina stellata Joseph P. Tracy 1932-7-12 10455 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  HSC12029  Solanum americanum D. Santana 1970-11-2 94 Humboldt 3 mi. S of Trinidad on old Hwy. 1 Comment
  UC902078  Solanum umbelliferum Joseph P. Tracy 1949-5-8 18293 Humboldt 5 mi e (of town) Carlotta (by old Strong's District School House) 60 Comment
  CAS-BOT-BC365432  Solidago elongata Marcus E. Jones 1931-7-12 29135 Humboldt Alton Comment
  CAS-BOT-BC365433  Solidago elongata Doris K. Kildale 1926-8-17 1211 Humboldt Trinity Summit 1828 Comment
  HSC57886  Solidago elongata Overton, Butler 1979-7-31 11437 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC76412  Solidago elongata D. K. Imper 1981-7-21 887 Humboldt Near Table Bluff 38 Comment
  UC302291  Solidago elongata Joseph P. Tracy 1926-7-25 7749 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  CHSC109579  Solidago spathulata B. Castro; L. P. Janeway 2004-9-10 1474 Humboldt North Coast. South Spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site: on other side of South Spit Road from the Humboldt Bay mudflats. 2 Comment
  HSC67441  Solidago spathulata J. P. Smith 1971-10-6 4948 Humboldt End of Murray Rd. in McKinleyville. Comment
  JEPS95017  Solidago spathulata Vernon Oswald and Lowell Ahart 1997-9-4 8852 Humboldt 1.1 mi s of Highway 255 (North Spit of Humbold Bay, w side of New Navy Base Road); North Spit of Humbold Bay 6 Comment
  SJSU8442  Solidago spathulata H. T. Harvey 1977-7-5 596 Humboldt Elk R Spit, Humboldt Bay Comment
  UC1173677  Solidago spathulata Joseph P. Tracy 1939-8-18 16426 Humboldt on vacant lot on Clark St. (between C and D; 1/2 mi from bay); Eureka 15 Comment
  UC1541471  Solidago spathulata J. P. Tracy 1924-9-21 6900 Humboldt Eureka Comment
  UC88159  Solidago spathulata Harley P. Chandler May 1901 1203 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  LA203960  Solidago velutina subsp. californica Joseph P. Tracy; 1937-9-5 15682 Humboldt Trinty River Valley, at Willow Creek 152 Comment
  UC1199287  Soliva sessilis Joseph P. Tracy 1914-5-14 4430 Humboldt Fort Seward , Fort Seward (Northern Coast Ranges) 121 Comment
  HSC35009  Soliva sessilis J. O. Sawyer 1975-5-20 2695 Humboldt 1445 Chester Ave., Sunnybrae Comment
  HSC79494  Sonchus asper Kenneth Clark 1980-3-1 506 Humboldt Deadman's Gulch; lower alluvial terrace 11 Comment
  HSC90637  Sparaxis tricolor Gail Newton 1982-5-2 2515 Humboldt Elk River Wildlife Area, Eureka Comment
  RSA85191  Sparganium angustifolium F. W. Peirson 1926-7-12 7042 Humboldt Humboldt County: Orick Comment
  HSC89261  Spartina alterniflora Anni Eicher 1989-4-20 366 Humboldt .5 mi. N of Samoa-Eureka bridge, E of State Hwy. 255, Humboldt Bay Comment
  CAS-BOT-BC235369  Spartina densiflora Ken Berg 1986-7-28 637 Humboldt Humboldt Bay, Arcata; foot of I Street Comment
  CAS-BOT-BC235370  Spartina densiflora Ken Berg 1986-7-28 637 Humboldt Humboldt Bay, Arcata; foot of I Street Comment
  UCSB34193  Spartina foliosa Kearns, Dennis 1979-8-24 Humboldt Spring Tide Area of Arcata Bay, Arcata Boat Launching Facility at the South end of "I" Street Comment
  HSC79185  Spergula arvensis L. P. Janeway 1984-2-4 710 Humboldt Along Bayside Rd. NW of Jacoby Creek School 18 Comment
  HSC37994  Spergularia macrotheca Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  HSC58185  Spergularia rubra G. L. Clifton, Griswold 1979-8-2 12273 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CAS-BOT-BC149622  Spiraea douglasii G. A. Coleman 1901-7-20 s.n. Humboldt Near Arcata Comment
  HSC19751  Spiraea douglasii Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  UC180171  Spiraea douglasii Joseph P. Tracy 1914-9-6 4604 Humboldt Bald Mountain Northern Coast Ranges (between High Prairie and Snow Camp, toward Snow Camp) 1219 Comment
  HSC18465  Spiranthes romanzoffiana Jana Kattenhorn 1970-10-14 168 Humboldt Big Lagoon Comment
  UC146132  Spirodela polyrhiza Joseph P. Tracy 1908-6 2745 Humboldt nw slope Buck Mountain (pond above mouth of Little Van Duzen); Northern Coast Ranges 457 Comment
  UC577327  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-8 14874 Humboldt Trinidad 3 Comment
  UCLA70873  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  UCLA71144  Stachys ajugoides var. rigida C. Epling 1938-6-10 Humboldt Blue Lake Comment
  UC153991  Stachys ajugoides var. rigida Joseph P. Tracy 1906-6-24 2497 Humboldt region about Humboldt Bay (s side of Humboldt Hill); Northern Coast Region 0 Comment
  RSA26844  Stachys chamissonis I. L. Wiggins 1940-7-10 9489 Humboldt Table Bluff Comment
  CDA40999  Stachys chamissonis T. C. Fuller 1968-7-3 17444 Humboldt Southwest corner of the fairgrounds, Van Ness Ave. and 5th Street, Ferndale. 0 Comment
  UCSB5869  Stachys chamissonis Keator, Glenn 1958-6-18 Humboldt between Capetwon and Ferndale; near Bear River Comment
  HSC12596  Stachys rigida C. Kline 1970-11-9 62 Humboldt Bayside Rd., .5 mile N of Bayside Comment
  UC1116226  Stellaria borealis subsp. sitchana Joseph P. Tracy 1947-8-24 17904 Humboldt Box Camp; Trinity Summit 1463 Comment
  RSA67572  Stellaria crispa P. A. Munz 1951-7-15 16550 Humboldt 5 miles N of Willow Creek 305 Comment
  UC162363  Stellaria crispa Joseph P. Tracy 1900-8-5 914 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC75438  Stellaria media J. O. Sawyer 1980-7-18 3580 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC48380  Stellaria media Mark Flippo 1978-4-18 37 Humboldt McKinleyville, Bella Vista Rd. Comment
  CAS-BOT-BC375781  Stephanomeria virgata J. Clausen 1932-9-19 705 Humboldt Between Miranda and Redway, 13.2 miles south of Weott Comment
  HSC98186  Stipa lemmonii J. P. Tracy 1930-7-23 9125 Humboldt Horse Mtn. 1524 Comment
  HSC32340  Stipa occidentalis var. californica D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5641 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  CAS-BOT-BC87613  Streptanthus tortuosus Joseph P. Tracy; F. W. Pennell 1940-7-7 16667 Humboldt Grouse Mountain. 1463 Comment
  UC162648  Streptanthus tortuosus var. orbiculatus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5664 Humboldt Hoopa Mt. Comment
  UC492251  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9029 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC32317  Streptanthus tortuosus var. tortuosus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5655 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC57457  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-7-26 10288 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC58202  Streptanthus tortuosus var. tortuosus Walter Overton 1979-8-1 12306 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  HSC102070  Suksdorfia ranunculifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 972 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC562304  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC99168  Symphyotrichum chilense L. R. Abrams 1927-8-31 12056 Humboldt Marshes along highway between Eureka and Arcata Comment
  HSC5047  Symphyotrichum chilense J. W. Johnson 1961-8-23 1048 Humboldt Arcata; along the sides of the Lanphere Co. Rd. by Mad River Slough Comment
  CAS-BOT-BC98973  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1215 Humboldt Trinity Summit near Ranger Station 1828 Comment
  POM51379  Symphyotrichum hendersonii Joseph P. Tracy 1917-9-1 4836 Humboldt Murphy Meadow, Bald Mountain 1067 Comment
  JEPS40830  Symphyotrichum subspicatum Milo S. Baker 1923-8-3 Humboldt roadside near Trinidad Comment
  HSC3783  Symphytum asperum Earl Jensen 1968-5-7 Humboldt Thompkins Hill Rd., about 3 mi. S of entrance 15 Comment
  UC1222193  Symphytum asperum Joseph P. Tracy 1943-10-3 17448 Humboldt bottom Arcata (near Iversen dairy ranch) Comment
  JEPS26265  Synthyris reniformis Joseph P. Tracy 1923-4-15 6190 Humboldt Redwood Creek at Berry's Redwood Creek; North Coast Ranges 274 Comment
  UC582545  Synthyris reniformis Joseph P. Tracy 1926-2-28 7380 Humboldt East Fork of Willow Creek Canyon]; Northern Coast Ranges 457 Comment
  HSC6244  Tanacetum bipinnatum Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  UC1302426  Tanacetum camphoratum Philip A. Munz 1963-6-13 24524 Humboldt Samoa Comment
  RSA233223  Tanacetum camphoratum P. H. Raven 1962-8-31 18079 Humboldt Dry Lagoon State Park. Comment
  HSC6259  Taraxacum officinale S. R. Johnson 1965-3-16 13 Humboldt 1 mi. N of Luffenholtz Beach Comment
  JEPS14252  Tauschia kelloggii Joseph P. Tracy 1936-6-10 14933 Humboldt mountain slopes w mouth South Fork of Trinity River; w of mouth South Fork of Trinity River 457 Comment
  HSC55212  Taxus brevifolia Walter Overton 1979-8-1 12351 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC98547  Taxus brevifolia Cara Witte 2008-6-7 687 Humboldt Forest Service Road 5N10. Approximately 1 mile south of intersection with Friday Ridge Road/ 6N08. 1346 Comment
  HSC75801  Tellima grandiflora Bill Copeland 1980-7-2 355 Humboldt Near Snow Camp Creek 1311 Comment
  UC1196167  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1935-5-25 13825 Humboldt along head of Larrabee Creek Blocksburg 518 Comment
  HSC100622  Thalictrum polycarpum Carl C. Marshall Jun 1887 410 Humboldt Throughout Humboldt County. Comment
  UC667955  Thelypteris nevadensis Joseph P. Tracy 1937-7-25 15556 Humboldt ne of Hawkins Bar (Happy Camp Mt.); Trinity Summit Range 1280 Comment
  UC1198811  Thlaspi montanum var. montanum Joseph P. Tracy 1939-4-29 16234 Humboldt near Weitchpec (along Trinity River); , near Weitchpec 121 Comment
  CAS-BOT-BC81305  Thuja plicata P. C. Everett; E. K. Balls 1959-10-25 23970 Humboldt 6.9 mi. SW. from Ferndale on Old Coast Road to Capetown 563 Comment
  HSC13054  Thuja plicata D. Santana, C. Kline Oct 1970 4 Humboldt HSC Campus Comment
  JEPS27183  Thuja plicata W. L. Jepson 1902-8-2 2137 Humboldt Wildcat Grade near Ferndale 457 Comment
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Sep 8 2007
  POM160766  Thuja plicata Joseph P. Tracy 1920-9-19 5401 Humboldt North fork of Mad River. 305 Comment
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Jul 25 2018
  UC212991  Thuja plicata Joseph P. Tracy 1920-9-19 5401 Humboldt North Fork Mad River North Coast Ranges, North Fork Mad River 304 Comment
  CAS-BOT-BC436903  Tiarella trifoliata var. unifoliata L. R. Abrams 1916-7-11 6014 Humboldt Mouth of Grizzley Creek on Van Duzen River Comment
  UC183590  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1912-7-25 3813 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCR3923  Tiarella trifoliata var. unifoliata David Whistler, H. M. Whistler 1964-7-29 640729- 5 Humboldt 0.2 mi north of Meyers Flats on U.S. 101 75 Comment
  RSA32652  Tiarella trifoliata var. unifoliata Doris K. Kildale 1925-6-28 833 Humboldt Lawrence Crk. Comment
  UC303041  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1926-6-27 7664 Humboldt Horse Mountain 1463 Comment
  CDA18203  Torilis arvensis G. D. Barbe, T. C. Fuller 1974-6-17 1829 Humboldt North Coast Ranges; Thorne Rd., 4 mi W of Redway, southern Humboldt Co., enroute to Shelter Cove. 0 Comment
  HSC44766  Torilis arvensis Maralyn O'Meara 1972-6-9 89 Humboldt Along bald Hills Rd. 16.4 mi. E of jct. with Hwy. 101 Comment
  UC642321  Torilis nodosa Joseph P. Tracy 1935-5-25 13892 Humboldt Dobbyn Creek 152 Comment
  UC906658  Torilis nodosa Joseph P. Tracy 1946-6-15 17558 Humboldt Berry's Mountain on Trinity Highway east of Redwood Creek 609 Comment
  BLMAR509  Toxicoscordion micranthum Jennifer Wheeler 2009-5-12 509 Humboldt Red Mountain, In serpentine meadow S of School Section Creek 792 Comment
  JEPS88012  Tracyina rostrata John L. Strother with Bruce G. Baldwin and Robert Ornduff 1996-5-30 1363 Humboldt on unpaved Stewart Ranch Rd ca 1 km (0.6 mi) e Alderpoint-Blocksburg Road (ne of Alderpoint) 160 Comment
  SEINET3071157 Image available Tracyina rostrata J. P. Tracy 1916-6-20 4735 Humboldt Alder Point Comment
  HSC62890  Tradescantia ohiensis J. M. DiTomaso 1979-5-20 1056 Humboldt 0.3 mi. N of Trinidad on Stagecoach Rd. Comment
  HSC6290  Tragopogon porrifolius William J. Ferlatte 1963-5-12 43 Humboldt Near 11th and B St.s, Arcata Comment
  UC154267  Trichostema lanceolatum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  RSA82198  Trichostema laxum F. W. Peirson 1926-7-13 7063 Humboldt Mad River, vicinity of Blue Lake. Comment
  SEINET8999565 Image available Trichostema oblongum Unknown 1927-8-7 8327 Humboldt Trinity River Valley, at Willow Creek Comment
  HSC54597  Trientalis latifolia Overton, Butler 1979-7-24 9676 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC70781  Trientalis latifolia Gail Newton 1980-7-14 1515 Humboldt Near Deadman Ridge 1097 Comment
  RSA46837  Trientalis latifolia Doris K. Kildale 1926-6-6 s.n. Humboldt quik as Davidsons Comment
  UC1197497  Trifolium barbigerum J. P. Tracy 1911-6-25 3260 Humboldt immediate vicinity Eureka (near Bucksport) 0 Comment
  UC16435  Trifolium bifidum var. decipiens Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5342 B Humboldt Harris Comment
  UC162778  Trifolium dubium J. P. Tracy 1900-6-23 857 Humboldt immediate vicinity Eureka 0 Comment
  HSC29728  Trifolium fucatum J. D. Ackerman 1973-4-19 43 Humboldt Off Redwood Ave., Arcata Comment
  UC495702  Trifolium fucatum Joseph P. Tracy 1927-6-5 8100 Humboldt s Yager Creek (valley); Northern Coast Ranges 762 Comment
  UC162777  Trifolium gracilentum J. P. Tracy 1900-6-5 844 Humboldt immediate vicinity Eureka (Bucksport) 0 Comment
  HSC99351  Trifolium longipes subsp. hansenii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 197 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  UC199105  Trifolium longipes var. elmeri Chesnut and Drew July 1888 Humboldt S. Fork of Trinity Comment
  HSC49103  Trifolium macraei Catherine Best 1979-5-20 Humboldt Lanphere-Christensen Dunes Comment
  RSA168855  Trifolium macraei Joseph P. Tracy 1950-6-18 18842 Humboldt Cape Ridge one mile est of Cape Mendocino. 152 Comment
  SEINET7097947  Trifolium macrocephalum A. G. Vestal 1937-1 s.n. Humboldt Ca. 14 miles south of Garberville on Route 101. UTM Zone 10, 433343 mE, 4422303 mN. Lat. 39 57' 00ao N, Long. 123 46' 49ao W NAD 27 (Converted to WGS84 decimal degrees) Comment
  RSA322029  Trifolium microdon John M. Gillett, A. G. Moulds, George W. Gillett 12607 Humboldt Trinidad. Comment
  HSC25987  Trifolium obtusiflorum Thomas W. Nelson 1970-9-3 219 Humboldt Mad River. Comment
  UC1223338  Trifolium obtusiflorum Joseph P. Tracy 1933-6-24 12614 Humboldt hills at n end Big Lagoon Comment
  SD90164  Trifolium repens Benjamin C. Stone 1952-6-21 117 Humboldt Stone Lagoon on Hwy 101 14 Comment
  HSC89587  Trifolium repens M. Roantree 1985-5-24 62 Humboldt E side of Trinidad Head Comment
  CDA4316  Trifolium subterraneum R. Drewry 1967-5-5 Humboldt Shelter Cove. 0 Comment
  UCD109390  Trifolium subterraneum R. Tofsrud 1949-7-1 s.n. Humboldt Hydesville. Comment
  JEPS4133  Trifolium variegatum var. variegatum Joseph P. Tracy 1932-5-22 10123 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC1223529  Trifolium variegatum var. variegatum Joseph P. Tracy 1937-6-20 15336 Humboldt 10 mi upstream mouth of Bear River 152 Comment
  HSC49043  Trifolium willdenovii Patricia Shesgreen 1978-5-6 71 Humboldt Arthur W. Way Memorial Park campground. 100 yds. N of Mattole River. Comment
  UC495691  Trifolium willdenovii Joseph P. Tracy 1927-6-12 8169 Humboldt Horse Mtn Northern Coast Ranges 914 Comment
  HSC104449  Trifolium wormskioldii Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 2 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC15196  Trifolium wormskioldii J. W. Bosworth 1965-5-14 50 Humboldt 1 mi. N of Fairhaven Comment
  HSC15193  Trifolium wormskioldii D. E. Anderson 1961-9-13 1814 Humboldt Trinidad Beach Comment
  HSC90318  Triglochin concinna Jean Hanson 1981-5-10 138 Humboldt Indian Island, Humboldt Bay, city of Eureka, W end of island Comment
  UCR179285  Trillium R. G. Swinney 1968-3-8 217 Humboldt Arcata 152 Comment
  RSA46966  Trillium albidum E. N. Crosby 1935-3-10 66 Humboldt Blue Lake Comment
  UC30093  Trillium albidum Mrs. M. H. Manning Apr., 1902 Humboldt near Hupa Hupa Comment
  RSA21190  Trillium albidum Carl B. Wolf 1937-8-11 9149 Humboldt N Coast Range, Van Duzen River, 2.7 miles W of Dinsmores. 457 Comment
  HSC71798  Trillium ovatum Gail Newton 1980-6-16 169 Humboldt Near Monks Camp. 1097 Comment
  UCR13422  Trillium ovatum T. Wetherwax 1973-4-1 730104- 01 Humboldt c. 2 mi north of US Hwy 299 on Fieldbrook Road 61 Comment
  HSC98740  Trillium ovatum subsp. ovatum Cara Witte 2008-6-4 685 Humboldt Ammon Ridge Road. Approximately 1/2 mile east of intersection with National Forest 1. 1562 Comment
  UC34823  Triodanis perfoliata Harley P. Chandler June, 1901 1514 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  JEPS11782  Triodanis perfoliata Milo S. Baker 1923-6-20 42 Humboldt headwaters of Yager Creek Comment
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Jan 2 2016
  JEPS10443  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1944-5-14 17467 Humboldt Eureka 6 Comment
  RSA10083  Trisetum canescens Joseph P. Tracy 1930-7-16 8916 Humboldt South Fork Mountain 1677 Comment
  SEINET200925 Image available Trisetum canescens Joseph P. Tracy 1935-7-30 14359 Humboldt Salmon Summit. 1768 Comment
  UCD93904  Trisetum cernuum A. H. Murphy 1947-8-5 s.n. Humboldt Bald Hills, 7-8 miles SE of Orick. Comment
  HSC44872  Triteleia hyacinthina J. P. Smith, J. O. Sawyer 1973-5-12 6664 Humboldt 1.0 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC3060  Triteleia laxa R. Spellenberg 1964-6-15 416 Humboldt 7 mi. E of Redwood Creek, Hwy. 299 Comment
  HSC35821  Triteleia laxa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1918 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  RSA167426  Triteleia laxa Joseph P. Tracy 1950-6-8 18755 Humboldt At Davis Creek Mouth, south of Cape Mendocino Comment
  RSA183021  Triteleia laxa Lee W. Lenz 1966-5-24 24657 Humboldt W of Berry Summit, US 299. Comment
  SEINET12053141  Triteleia laxa K. S. Erdman 1970-1 4768 Humboldt S slope of Schoolhouse Peak on Bald Hills Road, about 16 mi S of Orick 914 Comment
  SEINET202006  Triteleia peduncularis Joseph P. Tracy 1942-6-15 17123 Humboldt Englewood; Natrual prairrie near Redcrest resort 91 Comment
  CDA2565  Triticum aestivum Gordon Leppig, Sylvia Leppig, K. Neander 2000-4-14 1293 Humboldt East of Community Center parking lot, Arcata. Comment
  HSC13439  Triticum aestivum L. M. Malloy 1965-5-20 30 Humboldt Old county dump, 5 mi. from Arcata on Fickle Hill Rd. Comment
  HSC39045  Tsuga heterophylla Linda M. Barker 1976-6-14 1589 Humboldt 3 mi. W of Arcata Comment
  SBBG11120  Tsuga heterophylla D. E. Breedlove 1961-7-4 669 Humboldt US Hwy 299, 4.1 mi E of the N fork of the Mad River 609 Comment
  UCD67633  Tsuga heterophylla D. Sanchez-Mata 1996-6-27 s.n. Humboldt Blue Lake. Mad River. 175 Comment
  HSC13200  Umbellularia californica Jana Kattenhorn 1970-10-24 110 Humboldt HSC Campus, E of Building 37 Comment
  HSC14491  Umbellularia californica T. W. Beck 1963-3-17 15 Humboldt Humboldt Meridian, Camp Bauer, Korbel Comment
  RSA46913  Umbellularia californica Doris K. Kildale 1926-1-24 1488 Humboldt Kneeland, near schoolhouse. 762 Comment
  UC1196281  Umbellularia californica Joseph P. Tracy 1926-12-5 7835 Humboldt Blue Slide, on Van Duzen River Van Duzen River; Northern Coast Ranges, Blue Slide, Van Duzen River 91 Comment
  POM380627  Urtica dioica subsp. gracilis Lyman D. Benson 1929-7-12 1792 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  HSC15307  Utricularia macrorhiza W. B. Strickland 1968-3-28 Humboldt McClellan Mtn. Rd., off Hwy. 36 above Bridgeville 457 Comment
  UC30064  Vaccaria hispanica Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  CHSC19510  Vaccinium ovatum P. F. Yull 1966-3-24 112 Humboldt South of Manila School. 120 yards from ocean. Comment
  RSA503177  Vaccinium ovatum Gary D. Wallace 1971-7-28 947 Humboldt King Range, ca. 4 mi. SE of Shelter Cove along King Range Rd. 3.8 mi. S of jct. with Shelter Cove Rd. Comment
  UC154182  Vaccinium ovatum Harley P. Chandler Jun 1901 1397 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Valley 152 Comment
  UC412665  Vaccinium ovatum Harley P. Chandler May 1901 1167 Humboldt Eureka North Coast Ranges 30 Comment
  UCD118072  Vaccinium ovatum Linda M. Barker 1976-4-30 1423 Humboldt 3 miles west of Arcata. Comment
  SEINET7271898  Vaccinium ovatum R. K. Beattie 1920-9-22 5960 Humboldt Strong's Station on Van Duzen Fork of Eel River Comment
  CAS-BOT-BC199412  Vaccinium parvifolium E. K. Balls 1949-7-11 13973 Humboldt 35 miles west of Willow Creek on Hwy 299 to Arcata 152 Comment
  CAS-BOT-BC199413  Vaccinium parvifolium Carl B. Wolf 1930-10-26 1768 Humboldt Along the Redwood Highway 3 mi. so. of Del Norte Co. line 152 Comment
  CAS-BOT-BC199414  Vaccinium parvifolium Volney Rattan 1879-6-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC199417  Vaccinium parvifolium Doris K. Kildale 1926-8-15 2547 Humboldt Hoopa Mountain 792 Comment
  LA44792  Vaccinium parvifolium Carl Epling; William Robison 1935-7-22 sn Humboldt Patrick's Point Comment
  CHSC114203  Vaccinium parvifolium Loren Gehrung 1998-7-30 159 Humboldt Patricks Point State Park. Comment
  UC602499  Valeriana californica Joseph P. Tracy 1935-7-30 14381 Humboldt Salmon Summit 2103 Comment
  CAS-BOT-BC76049  Vancouveria hexandra Mrs. H. E. Wilder 1933-5-20 s.n. Humboldt Carlotta. Comment
  HSC48842  Vancouveria hexandra Brad Klipfel 1973-7-15 198 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1196350  Vancouveria hexandra J. P. Tracy 1901-6-10 1135 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC3388  Vancouveria hexandra M. T. Milligan 1964-5-14 Humboldt 3 mi. N on Essex Ln. Comment
  HSC37695  Vancouveria hexandra J. D. Ackerman 1974-4-26 181 Humboldt .3 mi. up Jolly Giant Cr. from HSU, Arcata. Comment
  JEPS33026  Vancouveria hexandra W. L. Jepson 1902-6 1912 Humboldt Pepperwood; beneath redwoods Comment
  SEINET12094119  Vancouveria hexandra F. H. Utech 1988-1 88 -269 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  RSA505336  Vancouveria planipetala Barbara Ertter, Thomas J. Delendick 1987-5-16 6941 Humboldt 3 miles E of Berry Summit on Hwy 299, 20 airmiles E of Arcata, near large volcanic rock on S side of road above Willow Creek 800 Comment
  SEINET10904790  Vancouveria planipetala Jones 1985-5-10 Jones 35 Humboldt T5n,r6e,sec.34, grays falls campground off of hwy 299. Ceanothus, arbutus, Quercus lobata habitat 241 Comment
  JEPS51168  Velezia rigida W. L. Jepson 1902-7-25 2120 Humboldt Hupa Valley Supply Creek (Supply Creek); , Supply Creek Comment
  CAS-BOT-BC527423  Veratrum californicum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Garlotta Humboldt Comment
  UC175819  Veratrum californicum var. californicum Joseph P. Tracy 1913-6-23 4280 Humboldt near summit ridge between Van Duzen and Mad Rivers (in wet meadow); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  UC1198211  Veratrum insolitum Joseph P. Tracy 1947-7-5 17820 1/2 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC21176  Verbascum blattaria David Adams 1960-8-20 Humboldt Whitlow (Sequoia) 60 Comment
  HSC21173  Verbascum thapsus H. D. Sumner 1959-7-13 Humboldt Redwood Creek near Hwy. 299 305 Comment
  CDA30687  Verbascum virgatum M. K. Beyers, I. Shepardson 2009-9-13 247 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
  POM267637  Verbena lasiostachys Lyman D. Benson 1928-7-12 488 Humboldt Weott Ranger Station. Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  HSC24393  Veronica americana J. O. Sawyer 1970-6-24 2251 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  RSA46832  Veronica americana Doris K. Kildale 1926-5-9 1988 Humboldt Kneeland Prairie. Comment
  HSC21189  Veronica americana Paul Shields 1955-6-16 Humboldt Humboldt State campus Comment
  HSC21195  Veronica americana P. Markle 1962-5-22 53 Humboldt Along road to City of Arcata reservoir Comment
  HSC99072  Veronica peregrina subsp. xalapensis Cara Witte 2007-6-21 331 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  UC1222425  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1925-5-30 7016 Humboldt 3 mi w of Bridgeville (Kemp's Ranch); Kemp's Ranch 198 Comment
  CHSC53307  Veronica scutellata L. P. Janeway 1984-5-16 795 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd and ca 1/4 mile northwest of the boat ramp. 3 Comment
  HSC78983  Veronica scutellata L. P. Janeway 1984-5-16 795 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd., 0.25 mi. NW of the boat ramp 3 Comment
  HSC56064  Veronica serpyllifolia subsp. humifusa G. L. Clifton, Terry Griswold 1979-7-31 11708 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  JEPS16812  Veronica serpyllifolia subsp. humifusa Joseph P. Tracy 1935-7-24 14176 Humboldt Trinity Summit, near Ranger Station Trinity Summit 1828 Comment
  CDA41766  Veronica serpyllifolia subsp. humifusa P. Haggard 1998-6-12 s.n. Humboldt North Coast Ranges; Town of Fieldbrook. 0 Comment
  POM283765  Veronica serpyllifolia var. humifusa Lyman D. Benson 1928-7-12 478 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  HSC32322  Vicia americana var. americana D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5665 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC56929  Vicia americana var. americana G. L. Clifton, Butler 1979-7-26 9357 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC1197479  Vicia americana var. americana Joseph P. Tracy 1936-3-29 14786 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  UC1197476  Vicia americana var. americana Joseph P. Tracy 1936-6-21 14996 Humboldt near Booth's Run (Iaqua); Iaqua 609 Comment
  UC709400  Vicia americana var. americana Joseph P. Tracy 1933-7-26 12905 Humboldt near 5350 ft Grouse Mt. summit; Grouse Mt. Comment
  HSC15259  Vicia hirsuta S. J. Roberts 1965-5-2 48 Humboldt Along old railroad Comment
  RSA755059  Vicia hirsuta Robert F. Thorne, Percy C. Everett 1965-8-8 35266 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  CHSC35677  Vicia sativa subsp. sativa James P. Smith 1973-5-26 6831 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  JEPS66198  Vicia tetrasperma Milo S. Baker 1923-7-23 92 Humboldt near Carlotta (Manning Creek); Manning Creek Comment
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  UC1761500  Viola Milo S. Baker 1923-7-30 157 Humboldt near Fredericksons Ranch, Eureka-Bridgeville Hwy Comment
  HSC21772  Viola adunca T. M. Mingo May 1965 Humboldt W of College Cove Comment
  RSA77779  Viola adunca F. W. Peirson 1926-7-12 7028 Humboldt West slope of Coast Range back of Orick. Comment
  SEINET200800 Image available Viola bakeri J. P. Tracy 1932-7-15 10596 Humboldt Trinity Summit Klamath Mts. Open ground near melting snow. 1829 Comment
  HSC21778  Viola cuneata Frances Oldridge 1946-1 Humboldt Willow Creek Comment
  HSC31194  Viola cuneata D. E. Anderson 1972-6-20 5749 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC39000  Viola hallii Thomas W. Nelson, Jane P. Nelson 1976-5-31 2654 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC21804  Viola hallii D. E. Anderson 1967-6-10 4367 Humboldt W-facing slope on Horse Mtn. 1220 Comment
  UC1198452  Viola hallii Eleanor Ethel Tracy 1907-5-1 Humboldt near top of Lawrence Creek Hill; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC21823  Viola ocellata W. Lanphere 1937-4-20 Humboldt Hoopa Comment
  UC1198431  Viola ocellata Joseph P. Tracy 1948-5-31 18007 Humboldt Harris 762 Comment
  HSC34874  Viola ocellata Thomas W. Nelson, James Nelson 1975-5-5 1779 Humboldt Beside Hwy. 101, ~ 4 mi. S of the Salmon Creek Bridge Comment
  RSA80528  Viola ocellata Joseph P. Tracy 1938-5-1 15731 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC668245  Viola ocellata Joseph P. Tracy 1938-5-1 15731 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  BLMAR574  Viola praemorsa Jennifer Wheeler 2010-5-12 574 Humboldt Lacks Creek, Faulkner prairie 731 Comment
  HSC99094  Viola praemorsa subsp. praemorsa C. Witte 2007-5-8 7 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  HSC42197  Viola sempervirens Ed Cope 1977-4-23 23 Humboldt 2.5 mi. S of Shelter Cove Rd. South Fork of Bear Creek at Wailaki Campground 561 Comment
  POM286646  Viola sempervirens Lyman D. Benson 1928-7-8 378 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 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
  UC1197980  Vitis californica Joseph P. Tracy 1933-7-3 12630 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC9836  Vulpia bromoides J. A. Waller 1965-5-16 47 Humboldt Open field near Big Lagoon. Comment
  HSC9838  Vulpia bromoides J. W. Johnson 1962-4-29 1303 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  SEINET200354  Vulpia microstachys var. pauciflora J. P. Tracy 1919-5-31 5161 Humboldt W side Trinity River; near Willow Creek 153 Comment
  UC277197  Vulpia microstachys var. pauciflora Joseph P. Tracy 1921-6-12 5818 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC53369  Vulpia myuros var. hirsuta M. A. H. 1896-6-2 Humboldt Eureka Comment
  UC1198903  Whipplea modesta Joseph P. Tracy 1942-5-16 17347 Humboldt 1 mi s Garberville (along river) 152 Comment
  UC70517  Whipplea modesta Mrs. M. H. Manning before Apr. 1901 Humboldt Hoopa Comment
  POM281864B  Woodwardia fimbriata Lyman Benson 1928-7-9 396 Humboldt Weott Ranger Station. Seaward N Coast Range, S Fork Eel River watershed. 61 Comment
  CAS-BOT-BC382920  Wyethia angustifolia Doris K. Kildale 1928-6-24 5271 Humboldt Horse Mountain 853 Comment
  CAS-BOT-BC382925  Wyethia angustifolia Alice Eastwood; John Thomas Howell 1937-6-23 4788 Humboldt Near Dinsmore's Comment
  JEPS32067  Wyethia angustifolia Joseph P. Tracy 1935-6-23 13938 Humboldt French Camp Ridge 1066 Comment
  UC1223303  Wyethia angustifolia Joseph P. Tracy 1942-6-23 17222 Humboldt open place on ridge top 1 mi w Mud Springs (in serpentine formation); Trinity Summit 1158 Comment
  JEPS28953  Wyethia glabra D. E. Breedlove 1961-7-4 654 Humboldt 13.7 mi w Willow Creek (U.S. Highway 299) 731 Comment
  JEPS109808  Wyethia longicaulis Dean W. Taylor 2004-6-24 19132 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit 1310 Comment
  JEPS32115  Wyethia longicaulis Jos. P. Tracy 1923-6-21 4254 Humboldt near summit of ridge between Van Duzen and Mad Rivers (Dinsmore Ranch) 1066 Comment
  CAS-BOT-BC326977  Wyethia longicaulis Volney Rattan 1881-6-1 s.n. Humboldt North of Mad River Comment
  BLMAR442  Xanthium spinosum Jennifer Anthony-Wheeler 2008-10-1 442 Humboldt Humboldt County, growing on Collenberg dairy, Mad River Road 7 Comment
  CAS-BOT-BC383636  Xanthium spinosum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1199227  Xanthium strumarium Joseph P. Tracy 1921-12-11 5982 Humboldt Alton Northern Coast Ranges, Eel River 30 Comment
  HSC100567  Xerophyllum tenax Carl C. Marshall Jun 1885 82 Humboldt Ridge between Redwood and N Fork. Comment
  UC1197336  Yabea microcarpa J. P. Tracy 1901-5-18 1100 Humboldt opposite Eureka (Sand Hills of Ocean Beach at Samoa); Samoa Comment
  RSA21089  Zigadenus micranthus Carl B. Wolf 1937-6-14 8817 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  CAS-BOT-BC534318  Zigadenus venenosus var. venenosus Carl B. Wolf 1937-6-14 8817 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  CDA867  Zostera japonica Gordon Leppig 2002-7-8 1784 Humboldt Indian Island, SW shore, mid-intertidal zone, +1.2 MLW. 0 Comment



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