Search Results — 2000 specimen records retrieved (1399 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/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  OBI36537  Abies concolor David J. Keil 1983-7-2 17317 Humboldt Ca. 4 mi SE ofSR 299 along Titlow Hill rd below Horse Mt summit rd Comment
  CDA468  Abies grandis George Loughner 2000-10-6 PDR# 023915 Humboldt Ridge, E of Blue Lake. 0 Comment
  HSC55155  Abies procera Gilbert Muth 1979-8-1 12107 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC70562  Abies procera M. A. Baker 1980-7-19 3042 Humboldt Near Bret Hole. 1814 Comment
  CHSC32897  Abronia latifolia J. P. Smith; Advanced Taxonomy Class 1971-10-6 4946 Humboldt Dunes at the end of Murray Road in McKinleyville. Comment
  HSC67579  Abronia latifolia J. P. Smith 1971-10-6 4946 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC90244  Abronia latifolia Jean Hanson 1980-5-24 56 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  RSA0025086  Abronia latifolia T. S. Elias, Barbara A. Elias 1987-8-24 10621 Humboldt Prairie Creek Redwoods State Park, Gold Bluffs Beach. Comment
  UC55523  Abronia latifolia P. E. Goddard 1901-8-6 180 Humboldt Regna Beach Comment
  UC673029  Abronia umbellata subsp. breviflora Joseph P. Tracy 1940-9-9 16721 Humboldt Mouth of Little River 3 Comment
  HSC104082  Acacia melanoxylon J. St. Marie 2002-3-24 Humboldt Manila; Peninsula Drive; grove adjacent to maritime forest Comment
  CAS-BOT-BC330548  Acer circinatum H. E. McMinn 1922-8-5 355 Humboldt Near Van Duzen River Comment
  UC35020  Acer circinatum Harley P. Chandler June, 1901 1283 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 1097 Comment
  UC902130  Acer circinatum Joseph P. Tracy 1949-8-4 18424 Humboldt near Mud Springs; Trinity Summit 1371 Comment
  CAS-BOT-BC330606  Acer glabrum var. glabrum Carl B. Wolf 1937-9-13 9336 Humboldt North Coast Range, Clear Lake between Horse Mt. & Grouse Mt. 1524 Comment
  HSC2812  Acer macrophyllum R. E. Thill 1965-5-1 27 Humboldt 0.25 mi. from Korbel on the Camp Bauer Rd. Comment
  JEPS42651  Acer macrophyllum W. L. Jepson 1932-7-30 16448 Humboldt near Big Tree; Bull Creek, near Big Tree 121 Comment
  UC165809  Acer macrophyllum Joseph P. Tracy 1911-6-4 3224 Humboldt along Little River 5 mi from the coast; Northern Coast Region, along Little River 121 Comment
  UC668173  Acer macrophyllum Joseph P. Tracy 1933-4-2 10955 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC57983  Achillea millefolium G. L. Clifton, Griswold 1979-7-31 11717 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  JEPS36916  Achillea millefolium Lincoln Constance 1934-5-29 716 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region, Upper Look Prairie 365 Comment
  SD41360  Achillea millefolium Edith A. Purer 1932-7-27 4133 Humboldt Samoa, near Arcata. Comment
  UC1199375  Achillea millefolium J. P. Tracy 1901-7-28 1220 Humboldt immediate vicinity Eureka 0 Comment
  UC581787  Achillea millefolium Joseph P. Tracy 1933-5-20 12230 Humboldt s of point of the cape near ocean shore Cape Mendocino 3 Comment
  UCSB30612  Achillea millefolium Edwards, David 1974-7-26 Humboldt At the top of the E. bank of the Mad River, at its junction with Puter Creek, ca. 2 mi. SW. of Korbel 27 Comment
  CAS-BOT-BC28581  Achillea millefolium David D. Keck 1949-7-12 6326 Humboldt 4 miles south of Scotia (halfway between Scotia and Pepperwood). Comment
  HSC59675  Achillea millefolium George Kirn 1977-10-12 Humboldt South shore Little River, 1/2 mile from mouth 8 Comment
  CAS-BOT-BC400015  Achlys triphylla Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  CAS-BOT-BC400017  Achlys triphylla Harley P. Chandler 1901-6-1 1293 Humboldt North Coast Ranges, Hupa Indian Reservation 182 Comment
  HSC31126  Achlys triphylla J. O. Sawyer 1970-6-24 2261 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  UCD94992  Achlys triphylla subsp. triphylla W. C. Overton Jr. 1980-4-27 s.n. Humboldt Grizzly Creek Redwoods State Park, southeast of Fortuna on State Highway 36. Along the Van Duzen River. 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
  SEINET201042  Achnatherum occidentale subsp. californicum J. P. Tracy 1932-7-12 10446 Humboldt Trinity Summit; Corral Prairie 1524 Comment
  HSC69893  Acmispon denticulatus Thomas W. Nelson, Jane P. Nelson 1977-7-29 3639 Humboldt Beside SR 36 at head of Larabee Valley 823 Comment
  UCD103756  Acmispon denticulatus R. Tofsrud 1951-1 s.n. Humboldt Location unknown. Comment
  HSC40938  Acmispon micranthus Linda M. Barker 1976-6-1 1557 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC902107  Aconitum columbianum Joseph P. Tracy 1949-8-11 18459 Humboldt Snow Camp 1402 Comment
  HSC73560  Aconitum columbianum subsp. columbianum M. A. Baker 1980-7-22 3111 Humboldt Near Grogan Hole. 1676 Comment
  HSC76192  Aconitum columbianum subsp. columbianum Overton, Butler 1979-7-24 9790 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  JEPS60374  Actaea rubra W. L. Jepson 1902-7-16 2055 Humboldt Trinity Summit 2133 Comment
  HSC95886  Adiantum aleuticum Will Ferrand 2002-2-2 23 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  UC62739  Adiantum aleuticum P. E. Goddard 1901-7-12 74 Humboldt Hupa Comment
  HSC948  Adiantum aleuticum W. R. Supernaugh, Jr. 1964-12-4 12 Humboldt Along rd. to Jolly Giant Reservoir Comment
  UC197911  Adiantum jordanii Joseph P. Tracy 1914-5-14 4427 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  CAS-BOT-BC65627  Adiantum jordanii Doris K. Kildale 1927-3-16 2995 Humboldt Phillipsville, South Fork of Eel River Comment
  UC479099  Aesculus californica Marcus E. Jones, A. M. 1931-7-12 28938 Humboldt Alton Comment
  HSC74197  Agastache urticifolia M. A. Baker 1980-7-22 3126 Humboldt Near Grogan Hole. 1676 Comment
  HSC57952  Ageratina occidentalis G. L. Clifton, Griswold 1979-7-31 11634 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC58060  Ageratina occidentalis G. L. Clifton, Griswold 1979-8-1 11936 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC102242  Ageratina occidentalis Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  JEPS18702  Ageratina occidentalis Milo S. Baker 1923-7-21 447 Humboldt Bed of Van Duzen North Coast, Bed of Van Duzen Comment
  UC1222944  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1945-7-15 17513 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC1222930  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-31 19225 Humboldt 1 mi s, along roadside Friday's Camp; Grouse Mountain 1524 Comment
  UC582747  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1930-6-21 8775 B Humboldt Larrabee Valley; Northern Coast Ranges 701 Comment
  UC1199484  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1927-5-14 8030 C Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC29354  Agoseris heterophylla var. heterophylla H. N. Bolander 1867-1 6494 Humboldt Red Mountains Comment
  UC582742  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1931-6-14 9579 Humboldt at Alton ((along Van Duzen River)); North Coast Ranges, Van Duzen River 30 Comment
  UC1222766  Agoseris retrorsa Joseph P. Tracy 1950-7-1 18952 Humboldt Grouse Mountain 1219 Comment
  CAS-BOT-BC384739  Agrostemma githago Doris K. Kildale 1926-5-31 2018 Humboldt Miranda on South Fork of Eel River Comment
  UC1103369  Agrostis alba J. P. Tracy 1900-9-2 934 Humboldt immediate vicinity Eureka 0 Comment
  SACT000115  Agrostis alba var. palustris D. Shillingbury 1963-5-11 Humboldt salt or brackish marshes along the coast. bog edge Comment
  UCD51855  Agrostis capillaris A. H. Murphy 1947-7-25 s.n. Humboldt Highland Bent, Cottral Ranch. Comment
  UCD51874  Agrostis capillaris var. aristata A. H. Murphy 1951-6-13 58 Humboldt Tooby and Prior Ranch, 3 miles S of Blocksburg. Comment
  CAS-BOT-BC127276  Agrostis exarata Joseph P. Tracy 1900-8-26 926 Humboldt Immediate vicinity of Eureka. 152 Comment
  CAS-BOT-BC127278  Agrostis exarata Joseph P. Tracy 1902-7-4 1757 Humboldt Northern Coast Region. Eureka. 60 Comment
  HSC102149  Agrostis exarata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1056 Humboldt Patterson Meadows 1566 Comment
  HSC98576  Agrostis exarata Cara Witte 2007-7-20 556 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  UC1103380  Agrostis exarata Joseph P. Tracy 1935-7-27 14282 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UCD52419  Agrostis exarata A. H. Murphy 1947-6-18 s.n. Humboldt Sherman Flat, 3.5 miles north of Blocksburg. Comment
  UCSB288  Agrostis exarata Parks, H.; Parks, S. 1952-06 Humboldt Spruce Cove, Trinidad 60 Comment
  RSA385503  Agrostis hallii Teresa Prendusi 1977-7-3 9234 Humboldt Road to Fish Lake (Forest Service Road 12N01). 3.5 miles from its junction with State Route 6. 488 Comment
  UC1145077  Agrostis hallii Joseph P. Tracy 1938-7-4 15982 Humboldt valley South Yager Creek; Valley of South Yager Creek 762 Comment
  BLMAR707  Agrostis hallii Jennifer Wheeler 2013-10-25 707 Humboldt Lacks Creek, Upper Round Prairie 731 Comment
  CAS-BOT-BC139131  Agrostis oregonensis Joseph P. Tracy 1934-7-13 13392 Humboldt North Coast Ranges. Dows Prairie. 60 Comment
  HSC102189  Agrostis pallens M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1103 Humboldt Andy's Camp 1564 Comment
  POM207266  Agrostis pallens Davy Blasdale 1899-05 5723 Humboldt Supply Creek Comment
  UC1145075  Agrostis pallens Joseph P. Tracy 1950-8-8 19292 Humboldt Croghan Hole Trinity Summit (dry gravelly flats among rocks) 1676 Comment
  SACT000139  Agrostis palustris S. Smith, Malcolm Nobs 1949-8-3 Humboldt Borders of irrigation ditch Comment
  UC249863  Agrostis scabra Joseph P. Tracy 1924-8-31 6841 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 91 Comment
  UCD56339  Agrostis stolonifera A. H. Murphy 1947-7-30 s.n. Humboldt 1.2 mile west of Hydesville, along the Rohnerville Road. Comment
  UC1103297  Aira caryophyllea Joseph P. Tracy 1923-6-24 6359 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA256716  Aira praecox Lon Hall 1975-5-24 381 Humboldt Samoa Dunes; Dunes from off Samoa Blvd. across from the boat landing; coastal strand. Comment
  HSC2924  Allium amplectens J. P. Tracy 1926-5-15 7483 Humboldt Kneeland Prairie Comment
  UC2222699  Allium amplectens Joseph P. Tracy 1951-6-26 19596 Humboldt extreme head of Redwood Creek, n side Board Camp Mountain Board Camp Mountain, Redwood Creek 1541 Comment
  SEINET199677  Allium bolanderi J. P. Tracy 1932-6-14 10139 Humboldt S Fork of Trinity River 0 Comment
  UC146211  Allium bolanderi var. mirabile Joseph P. Tracy 1908-6 2771 Humboldt opposite Buck Mountains; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC74047  Allium campanulatum R. York 1980-5-23 611 Humboldt Near Buck Mtn. 1524 Comment
  HSC39431  Allium campanulatum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2875 Humboldt E of Goat Hill lookout 1666 Comment
  UC666926  Allium campanulatum Joseph P. Tracy 1930-7-18 9072 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  RSA183583  Allium falcifolium D. E. Anderson 1965-6-1 3762 Humboldt Horse Mountain. 1433 Comment
  UC30070  Allium falcifolium Joseph Burtt Davy 1899-6-19 5659 Humboldt summit of ridge, Hoopa Mt. Hoopa Mt. Comment
  CAS-BOT-BC135843  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-10 5440 Humboldt Along branch road off Swayback Ridge Road ca. 1/2 mile east of junction - Six Rivers National Forest 1371 Comment
  HSC2971  Allium triquetrum N. D. Dennis 1965-4-17 25 Humboldt 1.0 mi. from Arcata on Old Samoa Rd. Comment
  UC535705  Allium unifolium Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  HSC48726  Allotropa virgata M. A. Baker 1979-6-6 774 Humboldt Middle of W half of section 2. 610 Comment
  CAS-BOT-BC170942  Alnus rhombifolia Doris K. Kildale 1925-8-13 1121 Humboldt Willow Creek near its mouth 152 Comment
  CAS-BOT-BC169540  Alnus rubra Carl B. Wolf 1931-8-28 2366 Humboldt Moist ravine, Redwood Highway, 4 1/2 miles N of Fortuna on road to Eureka 15 Comment
  HSC3395  Alnus rubra D. A. Shally 1965-5-15 52 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  HSC99022  Alnus viridis subsp. sinuata Cara Witte 2008-7-16 908 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UCD110049  Alnus viridis subsp. sinuata Joseph P. Tracy 1947-8-24 17913 Humboldt Near Box Camp. 1524 Comment
  UC1103316  Alopecurus aequalis Joseph P. Tracy 1924-8-31 6851 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges, Klamath R. 91 Comment
  UC526743  Alopecurus aequalis Joseph P. Tracy 1927-7-17 8269 Humboldt w. foothills of Chaparral Mt. (Three Cabins); Northern Coast Ranges, w. foothills of Chaparral Mt., Three 457 Comment
  UCD55904  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt mouth of Elk River, near Eureka. 6 Comment
  UC132199  Amaranthus retroflexus Joseph P. Tracy 1907-8-20 2599 Humboldt near hydesville; Northern Coast Region 60 Comment
  SEINET10473459  Ambrosia Mary Susan Taylor 1990-8-22 Taylor 6076 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  JEPS40952  Ambrosia chamissonis Joseph P. Tracy 1937-9-26 15688 Humboldt near Samoa; Humboldt Bay 6 Comment
  JEPS94282  Ambrosia chamissonis Vernon Oswald and Lowell Ahart 1997-9-4 8844 Humboldt Big Lagoon County Park at the sw edge of Big Lagoon Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  UC1118432  Ambrosia chamissonis G. T. Nordstrom 1937-7-1 1445 Humboldt 1.6 mi w Orick; Orick Quad. 0 Comment
  UC582624  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13687 Humboldt s end Stone Lagoon 3 Comment
  HSC98537  Amelanchier alnifolia var. semiintegrifolia Cara Witte 2008-6-11 709 Humboldt Forest Service Road 5N10. At intersection of Forest Service Road 5N41. 1294 Comment
  UC1198747  Amelanchier utahensis Joseph P. Tracy 1947-8-24 17900 Humboldt at edges Box Camp Meadow (near Box Camp); Trinity Summit 1463 Comment
  UC154229  Amelanchier utahensis Joseph P. Tracy 1908-6 2768 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD39988  Amelanchier utahensis Rodney Gale Myatt 1971-9-22 1196 Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  UCR32077  Amelanchier utahensis David J. Keil 1983-7-2 17332 Humboldt Horse Mountain Summit SW of Willow Creek 1509 Comment
  SEINET7296676 Image available Ammophila arenaria Richard W. Pohl 1987-1 15639 Humboldt Eureka; Beach and salt marsh 2 Comment
  UC175680 Image available Amsinckia spectabilis Joseph P. Tracy 1910-6-5 3152 Humboldt sand dunes of ocean beach at Humboldt Bay; Northern Coast Region; Ocean Beach at Humboldt Bay Comment
  HSC59142  Anagallis arvensis Terry Roth 1979-4-21 13 Humboldt Misty Mtn. Tree Farm Rd. off of Hookton Rd., near residence 46 Comment
  HSC28135  Anagallis arvensis J. D. Ackerman 1973-5-6 47 Humboldt Redcrest Comment
  HSC37661  Anaphalis margaritacea R. Sutherland 1976-8-6 23 .6876 Humboldt N facing steep slope of stony-clay sub soil 134 Comment
  SEINET11855265  Anaphalis margaritacea J. P. Tracy 1950-1 19363 Humboldt On foothills of Cape Ridge, .5 mi S of town, along coast road, 1 mile inland from Cape Mendocino 61 Comment
  HSC18008  Anemone deltoidea W. K. Parks Jul 1933 1170 Humboldt S Fork Mtn. Comment
  HSC18009  Anemone deltoidea H. E. Parks, S. T. Parks May 1930 748 Humboldt Along Van Duzen River Comment
  HSC56211  Anemone deltoidea G. L. Clifton, Griswold 1979-8-2 12216 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  JEPS60508  Anemone deltoidea W. L. Jepson 1902-7-15 2029 Humboldt between Mud Spring and Trinity Summit Trinity Summit 1828 Comment
  UC1197378  Angelica genuflexa Joseph P. Tracy 1940-9-26 16733 Humboldt 2 mi s of Fields Landing (Near Still Ranch) 6 Comment
  JEPS14236  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Near south city limits Eureka. 6 Comment
  JEPS14103  Angelica hendersonii Joseph P. Tracy 1936-10-24 15205 Humboldt Table Bluff 91 Comment
  JEPS14108  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  RSA246846  Angelica lucida R. F. Thorne, P. Everett 1965-8-9 35337 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 Comment
  UC642351  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  UC169316  Anisocarpus madioides Joseph P. Tracy 1908-6 2878 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC1222880  Antennaria media Joseph P. Tracy 1950-8-8 19297 Humboldt Croghan Hole Trinity Summit 1676 Comment
  UC582650  Antennaria suffrutescens Joseph P. Tracy 1933-7-11 12673 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC137781  Anthoxanthum Doris Kildale 1931-5-10 10557 Humboldt Snow Camp. Comment
  HSC94102  Anthriscus caucalis Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay 1 Comment
  UC303163  Aphanes occidentalis Joseph P. Tracy 1925-5-30 7018 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  HSC70343  Apocynum androsaemifolium M. A. Baker 1980-6-7 1850 Humboldt Near Ammon Creek 732 Comment
  HSC97622  Apocynum androsaemifolium Cara Witte 2007-6-19 301 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  BLMAR205  Apocynum androsaemifolium Jennifer Anthony-Wheeler 1996-7-9 205 Humboldt Pilot ridge., growing along rd side 1219 Comment
  UC154172  Apocynum cannabinum Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5896 Humboldt near Requa Comment
  HSC102583  Aquilegia formosa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1570 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC31555  Aquilegia formosa Glenn McGourty 1974-5-11 45 Humboldt Along Maple Creek Rd. Comment
  HSC24743  Aquilegia formosa var. formosa Tim Baroni 1971-6-23 29 Humboldt 6 mi. S of Ferndale on the Mattole Rd. Comment
  HSC56100  Aquilegia formosa var. truncata G. L. Clifton 1979-7-31 11823 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC56137  Aquilegia formosa var. truncata G. L. Clifton, Griswold 1979-8-1 11957 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC70390  Arabis breweri var. breweri Gail Newton 1980-6-7 140 Humboldt Near Brush Mtn. 1128 Comment
  HSC32848  Arabis glabra Thomas W. Nelson, James Nelson 1973-5-28 944 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC54209  Arabis glabra Griswold, Butler 1979-7-12 7253 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC40306  Arbutus menziesii Linda M. Barker 1976-4-30 1405 Humboldt 3 mi. W of Arcata Comment
  JEPS66576  Arbutus menziesii W. L. Jepson 1902-7-10 2004 Humboldt South Fork Trinity River, Martin's Ranch, (Expedition) from Ukiah to the Hupa Indian Reservation South Fork Trinity River; , Martin's Ranch 396 Comment
  HSC74408  Arceuthobium campylopodum Gail Newton 1980-8-10 2022 Humboldt Near Blake Mtn. 1798 Comment
  UC1198673  Arctostaphylos Joseph P. Tracy 1937-4-3 15248 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198678  Arctostaphylos Joseph P. Tracy 1933-4-9 10970 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC154197  Arctostaphylos Harley P. Chandler June 1901 1291 Humboldt Hupa Indian Reservation North Coast Ranges 1097 Comment
  UC585943  Arctostaphylos Joseph P. Tracy 1933-8-6 12958 Humboldt French Camp Ridge 1066 Comment
  UC1225903  Arctostaphylos X candidissima Joseph P. Tracy 1947-7-9 17861 Humboldt Horse Mountain 1432 Comment
  SD42342  Arctostaphylos canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast Range, Horse Mountain. 1525 Comment
  UCD50559  Arctostaphylos canescens Roman Gankin 1965-8-4 540 Humboldt On USAL Road, 23 miles north of junction with State Route 1 and 2.7 miles south of junction of Four Corners. Comment
Read comments
Jul 8 2015
  CAS-BOT-BC25214  Arctostaphylos canescens subsp. canescens Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC98662  Arctostaphylos canescens subsp. canescens C. Witte 2007-5-17 28 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  CAS-BOT-BC23758  Arctostaphylos columbiana Alice Eastwood 1907-4-22 98 a Humboldt Adams Station, across river. Comment
  CAS-BOT-BC23771  Arctostaphylos columbiana Joseph P. Tracy 1945-3-30 17497 Humboldt Eureka 45 Comment
  CAS-BOT-BC23785  Arctostaphylos columbiana Doris K. Kildale 1927-2-22 2980 Humboldt Kneeland Prairie at juncion of old and new roads 609 Comment
  CAS-BOT-BC23810  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  CAS-BOT-BC23814  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Berry Mt. betweein Redwood Creek and Trinity River. Comment
  RSA622684  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27762 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA622694  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27668 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  SBBG5510  Arctostaphylos columbiana M. J. Cody 1938-7-15 Humboldt Trinidad Comment
  UC1121466  Arctostaphylos columbiana A. E. Wieslander 1939-9-2 994 Humboldt 2 mi sw Big Lagoon (17 mi s of Orick); Rocky Pt. Quadrangle 7 Comment
  UC1222640  Arctostaphylos columbiana Joseph P. Tracy 1951-3-10 19391 Humboldt 2 mi n Trinidad; Park's place Comment
  UC183708  Arctostaphylos columbiana Joseph P. Tracy 1903-9-9 4403 Humboldt Big Lagoon Northern Coast Ranges 30 Comment
  UC314644  Arctostaphylos columbiana Joseph P. Tracy 1924-3-9 6606 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC585913  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13141 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC585922  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12582 Humboldt summit of barren ridge 1 mi s road from Hoopa westward to Bair's; Hoopa Mountain 1219 Comment
  UC726576  Arctostaphylos columbiana A. A. Heller 1937-6-12 15918 Humboldt along road paralleling the ocean Bishop Pine Lodge (3 mi n of Trinidad) Comment
  UCD50761  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1166 Humboldt 20 road miles east of Hwy. 101 on Bald Hills Road (from Orick). Comment
  CHSC63764  Arctostaphylos manzanita Walter Knight; Irja Knight 1988-9-5 6362 Humboldt Bald Hill Road about 21.5 miles from US 101 en route to Hoopa. 929 Comment
  RSA633016  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27813 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  HSC101660  Arctostaphylos manzanita subsp. glaucescens J. P. Smith, J. O. Sawyer 2011-4-23 13121 Humboldt Along road from Redway to Shelter Cove 212 Comment
  CAS-BOT-BC24375  Arctostaphylos manzanita subsp. manzanita J. P. Smith; John O. Sawyer 1975-4-6 8051 Humboldt 3 mi. n. of Whitethorn, across from the Califonria Dept. of Forestry Fire Station. Comment
  CAS-BOT-BC38829  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1930-8-3 9141 Humboldt Dinsmore's Ranch: On Van Duzen River opposite Buck Mountain. 670 Comment
  HSC102094  Arctostaphylos nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 997 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC40028  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13155 Humboldt French Camp Ridge 1066 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
  HSC63208  Arctostaphylos patula M. A. Baker 1979-6-6 1010 Humboldt .6 k W of FS Rd. 15N01 on FS Rd. 12N16, towards Bald Mtn. Comment
  JEPS38932  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8136 Humboldt Horse Mountain 1432 Comment
  UC32689  Arctostaphylos patula J. Burtt Davy 1899-6-21 5752 Humboldt slopes of Trinity Summit North Coast Ranges 1219 Comment
  CAS-BOT-BC43980  Arctostaphylos uva-ursi Jacob Sigg; Elizabeth McClintock; Walter Knight; Irja Knight 1981-2-25 4071 Humboldt Humboldt County 21 Comment
  CAS-BOT-BC46795  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  CAS-BOT-BC47215  Arctostaphylos uva-ursi Carl B. Wolf 1930-10-28 1779 Humboldt Samoa, Humboldt Bay. 15 Comment
  HSC7733  Arctostaphylos uva-ursi H. P. Chandler May 1901 1133 Humboldt Humboldt Bay 3 Comment
  UC1196868  Arctostaphylos uva-ursi Joseph P. Tracy 1923-3-31 6170 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  RSA254756  Arctostaphylos uva-ursi var. coactilis Thomas W. Nelson 1974-4-20 1181 Humboldt Elk Head north of Trinidad. Comment
  RSA518162  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt Ferndale: Larry Pries Dairy, 3.4 mi. W of Main St, on Centerville Beach Road. Comment
  CDA36130  Arctotheca prostrata CDFA Staff 1990-8-22 Humboldt Ferndale; Sage Road & Highway 211. 0 Comment
  SEINET3918774  Aristida adscensionis J. I. Mallory 1955-9-17 122 Humboldt North-northwest 3/8 miles of headquarters, Cottrell Ranch. Quad. 29A-2.; 0 747 Comment
  POM232100  Armeria maritima subsp. californica I. L. Wiggins 1930-7-11 4683 Humboldt Near Samoa Comment
  RSA245204  Armeria maritima subsp. californica Jerry Parker 1968-10-14 29 .1 Humboldt Mckinleyville Beach. Comment
  HSC22847  Arnica cernua D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5052 Humboldt ca. 6 miles W of Hoopa, along road from Redwood Creek to Hoopa Comment
  UC581753  Arnica discoidea Joseph P. Tracy 1937-7-2 15398 Humboldt on ridge 2 mi e of, Grove's Prairie; Trinity Summit 1524 Comment
  HSC33626  Arnica discoidea Thomas W. Nelson, Jane P. Nelson 1976-6-15 2730 Humboldt Growing on FS road N of Alder Springs 1524 Comment
  UC1199250  Arnica discoidea Joseph P. Tracy 1919-5-31 5170 Humboldt near, at w side of Trinity River Willow Creek; Trinity River 182 Comment
  SEINET3098738  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit. Fir woods near Corral Prairie 1520 Comment
  UCD56029  Arrhenatherum elatius Joseph P. Tracy 1950-6-15 18781 Humboldt 5 miles north of Harris. Near top of Mail Ridge. 1066 Comment
  CAS-BOT-BC84835  Artemisia douglasiana Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  BLMAR66  Artemisia pycnocephala Jennifer Anthony-Wheeler 1994-5-18 66 Humboldt Samoa dunes, growing outside wetland boundaries in Samoa Rec. area 6 Comment
  CDA10172  Artemisia pycnocephala T. C. Fuller 1961-9-28 7056 Humboldt 1.5 miles south of Samoa. 0 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
  JEPS45624  Aruncus dioicus var. pubescens W. L. Jepson 1902-7-11 2011 Humboldt South Fork Trinity River; Martin's Ranch Comment
  CHSC111  Asarum caudatum 1952-7-7 Humboldt Coastal. Comment
  HSC58163  Asarum caudatum G. L. Clifton, Griswold 1979-8-2 12227 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  POM318583  Asarum caudatum Patricia Wilder 1968-8-22 4421 Humboldt Coastal rain forest 7 miles S of Ferndale on Mattole Road, N of Cape Mendocino and Capetown, Mt. Range: Bear River Ridge; Drainage Area: Oil Creek to Pacific. 549 Comment
  UC672846  Asarum caudatum Joseph P. Tracy 1935-7-23 14160 Humboldt Trinity Summit, lower end of Brett Hole 1584 Comment
  UCR3539  Asarum caudatum David Whistler, H. M. Whistler 1964-7-31 640731- 8 Humboldt North Coast, at Del Norte county line on US Hwy 101 [between Orick and Klamath] 137 Comment
  HSC3266  Asarum caudatum D. E. Anderson 1962-3-8 1929 Humboldt E of HSC campus Comment
  SEINET8588609  Asarum caudatum J. D. Freeman, R. F. Freeman 1967-5-7 584 Humboldt Moist low bluff just W of Cal. Hwy 36 and just N of Carlotta. Comment
  UC35246  Asclepias speciosa Chesnut and Drew 1888-7-22 Humboldt Hy-Am-Pum Comment
  UC1222669  Asclepias speciosa Joseph P. Tracy 1950-7-6 19002 Humboldt 2 mi s Burr Valley (on the Albee Road) 1158 Comment
  CAS-BOT-BC65946  Aspidotis densa Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  CDA26595  Astragalus agnicidus Gordon Leppig 2001-6-25 2107 Humboldt PALCO land. THP 1-00-461HUM. Comment
  JEPS109802  Astragalus agnicidus Dean W. Taylor 2004-6-22 19115 Humboldt head of Scott Creek, flanks of Mt Baldy, Larabee Creek watershed 731 Comment
  RSA104885  Astragalus agnicidus R. C. Barneby 1954-5-19 11570 Humboldt Over ridge on Henry Tosten ranch near Bear Buttes area. 4 miles south of Miranda. 762 Comment
  SEINET880898 Image available Astragalus agnicidus Henry Tosten 1931-1 s.n. Humboldt Near Bear Buttes, 4 mi south of Miranda; local on Tosten and Pierce Ranch. 762 Comment
  CAS-BOT-BC193135  Astragalus rattanii var. rattanii Doris K. Kildale 1926-7-11 2350 Humboldt Bear River at Capetown Comment
  UC162811  Astragalus rattanii var. rattanii Joseph P. Tracy 1903-5-23 1903 Humboldt along sand bars of Eel River at Alder Point; Northern Coast Ranges, Eel River at Alder Point 91 Comment
  RSA138295  Astragalus umbraticus Volney Rattan 1878-1 1878 Humboldt Humboldt. Comment
  SEINET948796  Astragalus umbraticus Joseph P. Tracy 1914-1 4595 Humboldt Bal mountians, between high prairie and snow camp. 1219 Comment
  UC160962  Astragalus umbraticus Mrs. M. H. Manning 1900-7-1 181 Humboldt near Hupa (Hoopa) (Bald Hills, Hupa Valley); near Hupa (Hoopa), Bald Hills, Hupa Valley Comment
  HSC74724  Asyneuma prenanthoides Gail Newton 1981-8-6 2408 Humboldt Near Mad River. 1308 Comment
  HSC76042  Asyneuma prenanthoides Overton, Butler 1979-8-2 12569 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC10342  Athyrium filix-femina var. cyclosorum W. R. Supernaugh, Jr. 1964-12-12 8 Humboldt 1 mi. W of Freshwater Corners on Old Arcata Rd on S side of Hwy. Comment
  HSC44042  Athyrium filix-femina var. cyclosorum Thomas W. Nelson, Jane Nelson 1977-9-3 3727 Humboldt Growing along Cr. draining N from pond above Alder Spring 1585 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
  UC55498  Atriplex leucophylla J. P. Tracy 1901-8-7 1264 Humboldt opp. Eureka (sand hills of Ocean Beach at Samoa); Samoa, opp. Eureka Comment
  HSC69756  Atriplex prostrata Thomas W. Nelson 1977-9-22 3751 Humboldt Along E side of State Rte. 101, N of Eureka airport Comment
  SEINET200595 Image available Azolla caroliniana J. P. Tracy 1911-6-25 3245 Humboldt Covering several acres of pool back of Holmes Mill Bucksport northern coast region of California Comment
  UCD136023  Azolla filiculoides Malcolm A. Nobs; S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach. Comment
  CHSC26753  Baccharis douglasii M. S. Taylor 1977-7-5 1428 Humboldt Around bridge over Eel River at the turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  UCR122378  Baccharis glutinosa George K. Helmkamp, E. A. Helmkamp 2001-7-8 7006 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  UC581762  Baccharis glutinosa Joseph P. Tracy 1933-8-27 13001 Humboldt between Garberville and Harris Garberville (Robertson Ranch) 762 Comment
  RSA47112  Baccharis pilularis Doris K. Kildale 1925-9-12 1326 Humboldt Salmon Creek near Miranda Comment
  UC249855  Baccharis pilularis Joseph P. Tracy 1923-10-6 6565 Humboldt Eureka, around Humboldt Bay Eureka, Humboldt Bay 30 Comment
  BLMAR522  Barbarea orthoceras Jennifer Wheeler 2009-4-30 522 Humboldt King range, Hidden Valley trail Comment
  HSC7002  Barbarea verna W. F. Nickel 1965-4-22 Humboldt HSU campus between the Wildlife and Biological Science buildings Comment
  HSC82029  Bellardia trixago Thomas W. Nelson, Jane P. Nelson 1980-5-25 5344 Humboldt Along Alderpoint-Blocksburg Rd., just SE of bridge over N Dobbyn Creek 152 Comment
  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
  HSC40854  Berberis aquifolium Thomas W. Nelson 1976-7-9 2995 Humboldt Along ridge S of E peak of Mtn. Lassic group, (Signal Pk.). 1707 Comment
  HSC31651  Berberis nervosa Timothy B. Devine 1974-5-4 321 Humboldt 1/4 mi. N of junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  CAS-BOT-BC75803  Berberis pinnata Doris K. Kildale 1929-3-19 7025 Humboldt Top of Liscom Hill, near Essex. 853 Comment
  HSC103115  Berberis repens M. Mesler 2010-9-4 841 Humboldt Along trail E603 (Salmon Summit traihead to Red Cap Lake), about 100 m SE of Baylor Camp. 1677 Comment
  BLMAR413  Bidens cernua Clara Sander 2007-8-22 413 Humboldt South Spit, east side of road near "lone tree" 9 Comment
  SEINET11861631  Bidens frondosa J. P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Creek below Orleans 8 mi 122 Comment
  HSC35726  Blechnum spicant Thomas W. Nelson 1975-1-16 1747 Humboldt E of HSU campus Comment
  SEINET11711335  Blechnum spicant K. S. Erdman 1970-1 4820 Humboldt Summit of Gold Bluffs on park road ca 2 mi W of US 101 at Berry Glen, Redwood National Park Comment
  CAS-BOT-BC15786  Boechera acutina Thomas Nelson 1979-7-11 5028 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit. Comment
  CAS-BOT-BC14302  Boechera platysperma Joseph Prince Tracy 1932-7-12 10458 Humboldt Klamath Mountains. Trinity Summit. Head of Brett Hole. 1828 Comment
  UC492238  Boechera platysperma Joseph P. Tracy 1932-7-12 10458 Humboldt Head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  HSC41347  Boschniakia strobilacea Brad Klipfel 1974-8-2 501 Humboldt Horse Mtn. Comment
  HSC48730  Boschniakia strobilacea J. Pageau, Jimerson, E. Toth 1979-6-13 522 Humboldt Creek timber sale unit 7 549 Comment
  JEPS13526  Boschniakia strobilacea W. L. Jepson 1902-7-16 2052 Humboldt Trinity Summit. 2133 Comment
  HSC76195  Boykinia major Overton, Butler 1979-8-2 12503 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC96479  Boykinia occidentalis Gordon Leppig 1997-6-19 441 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC56717  Boykinia occidentalis Harley P. Chandler June, 1901 1311 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  CDA30214  Brassica nigra M. K. Beyers, I. Shepardson 2009-9-13 243 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  RSA187520  Brassica rapa John H. Thomas 1966-3-19 11487 Humboldt Southern end of Big Lagoon, just inland from the coast between Eureka and Crescent City. 0 Comment
  HSC83441  Briza maxima R. N. Raynor 1935-5-22 Humboldt Ft. Seward Comment
  RSA10068  Briza maxima Joseph P. Tracy 1930-7-6 8848 Humboldt Iaqua 762 Comment
  HSC37934  Briza minor Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near Humboldt County Airport Comment
  HSC23716  Brodiaea elegans subsp. elegans Tim Baroni 1971-6-25 36 Humboldt 8 mi. E of Petrolia Comment
  BLMAR29  Bromus carinatus var. carinatus Brad Barr June, 1982 29 Humboldt King range, Spanish ridge facing south Comment
  HSC98129  Bromus carinatus var. carinatus Cara Witte 2007-6-28 391 Humboldt Intersection of 6N08 (Friday Ridge Road) and 5N39. 1475 Comment
  HSC9300  Bromus diandrus E. W. Styskel 1964-4-28 75 Humboldt End of Davis St. at the edge of Eel River in Rio Dell Comment
  RSA34310  Bromus diandrus L. Larsen 1935-5-6 s.n. Humboldt [no additional locality data provided] Comment
  SEINET181180 Image available Bromus diandrus Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-7 15066 Humboldt 10 miles south of Squaw Creek. Comment
  HSC102645  Bromus hordeaceus J. P. Smith 2009-5-31 12607 Humboldt Bald Hills Road. 713 Comment
  HSC90690  Bromus hordeaceus Gail Newton 1982-5-31 3554 Humboldt Elk River Wildlife Area, Eureka Comment
  UC552680  Bromus hordeaceus Joseph P. Tracy 1935-5-25 13867 Humboldt Fort Seward 106 Comment
  UCD59595  Bromus rubens A. H. Murphy 1951-5-21 s.n. Humboldt Tooby and Prior Ranch, Blocksburg Experimental grazing pasture. Comment
  UC212890  Bromus tectorum Joseph P. Tracy 1919-5-31 5173 Humboldt Northern Coast Ranges, at mouth of Willow Creek, tributary of Trinity River Willow Creek; Northern Coast Ranges, Willow Creek 152 Comment
  UC725498  Bromus vulgaris A. A. Heller 1923-7-10 13789 Humboldt Humboldt Camp between Scotia and Pepperwood; Humboldt Camp Comment
  SEINET10524083  Bromus vulgaris A. Arthur Heller 1923-7-10 Heller 13789 Humboldt Open places in the redwood forest between Scotia and Pepperwood. Comment
  HSC44136  Cacaliopsis nardosmia Thomas W. Nelson, Jane P. Nelson 1977-7-1 3570 Humboldt Along N side of ridge between Bear and Blanket Creeks 1494 Comment
  UCD114857  Cakile edentula M. Barbour 1969-9-4 s.n. Humboldt West of Table Bluff (about 10 miles south of Eureka). Comment
  CAS-BOT-BC36862  Cakile edentula var. edentula Doris K. Kildale 1926-7-14 2375 Humboldt Trinidad Beach. Comment
  HSC12357  Cakile maritima Steve Dorei 1970-10-7 145 Humboldt McKinleyville Comment
  HSC39791  Cakile maritima Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay Comment
  UC1198279  Cakile maritima Joseph P. Tracy 1946-1-13 17517 Humboldt Centerville Beach 3 Comment
  UCD114943  Cakile maritima Linda M. Barker 1976-9-3 1694 Humboldt 3 miles west of Arcata. Comment
  HSC76541  Calamagrostis koelerioides Denis Kearns 1981-7-6 85 Humboldt Near Mosquito Lake 1256 Comment
  CAS-BOT-BC185185  Calamagrostis nutkaensis Catherine Best 1990-6-26 1398 Humboldt Growing near Nature Conservancy property on the road to the Table Bluff Light House northwest of Loleta. Comment
  UC1103287  Calamagrostis nutkaensis Joseph P. Tracy 1918-7-21 5079 Humboldt Humboldt Hill Northern Coast Ranges, <area> around Humboldt Bay 182 Comment
  CHSC106732  Callitriche heterophylla var. bolanderi Robert F. Thorne; P. Everett 1965-8-9 35323 Humboldt Clam Beach County Park: along highway in shallow water of ditch. 3 Comment
  HSC98087  Callitriche heterophylla var. bolanderi Cara Witte 2007-7-11 479 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  UC1103691  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1913-5-11 4073 Humboldt Eureka Northern Coast Region (at Stephen Hill place) 0 Comment
  HSC62829  Callitriche stagnalis J. M. DiTomaso 1979-5-29 1080 Humboldt Arcata Bottoms, 1.7 mi. W of Alliance Rd. on Lanphere Rd. 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
  UC1103692  Callitriche trochlearis Joseph P. Tracy 1913-6-23 4277 Humboldt ridge between Van Duzen River and Mad River (Dinsmore's Ranch); Northern Coast Ranges 1066 Comment
  CAS-BOT-BC80386  Calocedrus decurrens Doris K. Kildale 1926-8-31 2606 Humboldt Mattole River Valley, Geo. H. Mineis Ranch Comment
  RSA47092  Calocedrus decurrens Doris K. Kildale 1926-8-31 2606 Humboldt Union Mattole - Geo. H. Miner s Ranch, Mattole River Valley Comment
  SBBG115082  Calochortus amabilis D. Leaberry 1991-6-13 Humboldt Hwy 254 (Avenue of the Giants), ca. 1 mi S of Phillipsville Comment
  UC667124  Calochortus amabilis Joseph P. Tracy 1927-5-30 8090 Humboldt Garberville 152 Comment
  CAS-BOT-BC488458  Calochortus amabilis V. Rattan 1882-6-1 s.n. Humboldt Humboldt County Comment
  JEPS17804  Calochortus amabilis Joseph P. Tracy 1916-6-19 4711 Humboldt Laribee Creek, at Bosworth's Northern Coast Ranges 457 Comment
  HSC15423  Calochortus monophyllus J. Wendell Howe 1236 Humboldt Comment
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Feb 11 2018
  UC195348  Calochortus vestae Joseph P. Tracy 1916-6-19 4713 Humboldt Bosworth's Ranch Northern Coast Ranges, Laribee Creek 457 Comment
  UC180238  Caltha biflora Joseph P. Tracy 1914-7-4 4525 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges. 1066 Comment
  JEPS38589  Calycadenia multiglandulosa W. L. Jepson 1902-7-4 1983 Humboldt Hupa Valley Comment
  RSA47142  Calycadenia truncata subsp. scabrella Doris K. Kildale 1925-9-4 982 Humboldt Redwood Creek Comment
  HSC55018  Calyptridium monospermum Overton, Butler 1979-7-31 11424 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC55198  Calyptridium monospermum G. L. Clifton, Terry Griswold 1979-8-2 12299 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC98759  Calyptridium monospermum Cara Witte 2008-7-2 815 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 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
  RSA119358  Calystegia occidentalis subsp. occidentalis S. S. Tillett 1956-7-6 625 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  UC175713  Calystegia purpurata Joseph P. Tracy 1912-7-26 3859 Humboldt Kneeland Prairie , Kneeland Prairie (Northern Coast Ranges) 762 Comment
  RSA178575  Calystegia purpurata Joseph P. Tracy 1950-6-8 18769 Humboldt Near petrolia Hills between Town and Ocean. Comment
  CDA38662  Calystegia silvatica David Juliano 2010-6-17 PDR# 1535024 Humboldt Eureka. 0 Comment
  BLMAR68  Calystegia soldanella Jennifer Anthony-Wheeler 1994-5-18 68 Humboldt Samoa/manilla dunes, growing in dune mat with I the Samoa Rec. area wetland 6 Comment
  CAS-BOT-BC497299  Camassia leichtlinii var. suksdorfii Joseph P. Tracy 1930-7-17 9000 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1676 Comment
  UC302169  Camassia quamash Joseph P. Tracy 1925-7-5 7179 1/2 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC90189  Camissonia cheiranthifolia Jean Hanson 1980-5-24 53 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  HSC59672  Camissonia cheiranthifolia George Kirn 1977-10-14 Humboldt 1/2 mi. NW of Samoa Comment
  RSA43830  Campanula prenanthoides H. M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. 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
  SEINET10462961  Campanula prenanthoides Philip A. Munz 1936-8-10 Munz 14338 Humboldt Dry roadside, Lottle Van Duzen River, 15 miles east of Bridgeville Comment
  SEINET10462965  Campanula prenanthoides Aven Nelson, Ruth A. Nelson 1977-7-1 Nelson 3562 Humboldt Along north slope of ridge between Bear & Blanket Creeks. T1S R5E SEC.25 1494 Comment
  SEINET10462966  Campanula prenanthoides Tracy 1911-7-4 TRACY 3286 Humboldt Hill slopes at west side of Trinity River; near Willow Creek 244 Comment
  SEINET10840312  Campanula prenanthoides Mcgregor 1921-8-17 MCGREGOR s.n. Humboldt Abandoned road grade, Oriels Comment
  UC34826  Campanula scouleri Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC100410  Campanula scouleri Carl C. Marshall Jun 1886 243 Humboldt Redwood region, 'wild grass'. Comment
  SEINET10463754  Campanula scouleri Baker 1979-6-29 Baker 956 Humboldt Hopkin's Creek. T9N R5E Sec.3 760 Comment
  SEINET10463761  Campanula scouleri Tracy 1927-8-22 TRACY 8353 Humboldt High Prairie, on Bald Montain, in open woods. 1067 Comment
  SEINET3238935 Image available Capsella bursa-pastoris Joseph P. Tracy 1929-4-28 8544 Humboldt Trinity River Valley, at Willow Creek 150 Comment
  HSC57307  Cardamine californica Terry Griswold, Marvin Butler 1979-7-10 6250 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1495 Comment
  HSC6689  Cardamine californica E. W. Styskel 1963-4-20 16 Humboldt 3 mi SE of Korbel on Snow Camp Rd. 290 Comment
  JEPS53368  Cardamine californica var. integrifolia Joseph P. Tracy 1918-4-21 4878 Humboldt road to Kneeland Prairie (around Humboldt Bay); Northern Coast Ranges, Humboldt Bay 152 Comment
  SEINET6914416  Cardamine californica var. integrifolia J. P. Tracy 1911-4-2 3171 Humboldt Immediate vicinity of Eureka, altitude 0-500 feet. Comment
  UC1199184  Cardamine californica var. sinuata Joseph P. Tracy 1939-3-19 16206 Humboldt 5 mi e Carlotta (by old Strong's District School House); e of Carlotta, by old Strong's District School House 45 Comment
  UC1199194  Cardamine nuttallii Joseph P. Tracy 1933-6-11 12665 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1371 Comment
  SEINET3377729  Cardamine nuttallii var. gemmata K. T. Harper 2002-1 2002 -6 Humboldt Prarrie Creek State Park, near Orick, on Big Tree Trail. Comment
  HSC6648  Cardamine oligosperma J. R. Kahl 1962-3-10 6 Humboldt 2 mi. S of Trinidad along old Hwy.101 Comment
  CAS-BOT-BC384765  Cardionema ramosissimum Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  UCD129920  Carduus tenuiflorus W. A. Williams 1951-6-1 s.n. Humboldt near Capetown. Comment
  JEPS75414  Carex W. L. Jepson 1932-7-26 16411 Humboldt s bank, Bull Creek Bull Creek 106 Comment
  SEINET200666  Carex abrupta Joseph P. Tracy 1928-6-17 8450 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  RSA32725  Carex aquatilis var. dives A. A. Heller 1930-8-4 s.n. Humboldt Little River. Comment
  UC1103603  Carex aquatilis var. dives Joseph P. Tracy 1938-7-6 16024 Humboldt Big Lagoon 6 Comment
  UC1103626  Carex aquatilis var. dives Joseph P. Tracy 1927-8-22 8352 Humboldt Bald Mountain, meadow near High Prairie Northern Coast Ranges 1066 Comment
  CDA33036  Carex barbarae F. Wetherbee 1962-5-1 Humboldt Ferndale. 0 Comment
  UC1103102  Carex bolanderi Joseph P. Tracy 1926-6-6 7574 Humboldt Hoopa Mountain, near summit on road W from Hoopa to Bair's 1066 Comment
  CAS-BOT-BC34010  Carex brevicaulis Joseph Prince Tracy 1939-5-7 16276 Humboldt Sand Dunes, near Samoa, on Humboldt Bay. 6 Comment
  CAS-BOT-BC110193  Carex buxbaumii Robert F. Thorne; P. Everett 1965-8-7 35182 Humboldt Big Lagoon. At south end of lagoon. 1 Comment
  HSC96498  Carex buxbaumii Gordon Leppig 1999-7-9 1183 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  JEPS26006  Carex canescens Joseph P. Tracy 1939-7-9 16318 Humboldt at Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  UC1103599  Carex concinnoides Joseph P. Tracy 1927-6-19 8202 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 15 Comment
  HSC95435  Carex cusickii Gordon Leppig 2001-6-16 1569 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  CAS-BOT-BC34982  Carex densa Joseph Prince Tracy 1938-6-9 15877 Humboldt Dobbyn Creek. 152 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
  UC1158127  Carex densa Joseph P. Tracy 1942-6-15 17135 Humboldt Englewood, near Redcrest resort 91 Comment
  JEPS113012  Carex deweyana subsp. leptopoda Dean W. Taylor 1991-8-15 12280 B Humboldt Snow Camp Lake 1310 Comment
Read comments
Apr 8 2012
  UC750613  Carex deweyana subsp. leptopoda Henry M. Pollard 1945-9-1 Humboldt Camp Creek Klamath River Canyon Comment
  SDSU11699  Carex deweyana subsp. leptopoda W. A. Bemis 1964-5-4 274 Humboldt Freshwater Forest, Freshwater. (SE1/4, SE1/4, Sec. 28, T6N, R1E, HBM. 98 Comment
  JEPS109270  Carex diandra D. W. Taylor 2004-6-23 19127 Humboldt Pond on the divide between Frost Creek and Martin Creek, about 1 air mile e of the Alderpoint road. Comment
  CAS-BOT-BC20079  Carex echinata Joseph Prince Tracy 1933-7-25 12845 Humboldt Northern Coast Ranges. Grouse Mountain. 1524 Comment
  CAS-BOT-BC19862  Carex echinata subsp. echinata Joseph Prince Tracy 1932-7-14 10567 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  CHSC90287  Carex echinata subsp. echinata Thomas W. Nelson; Jane P. Nelson 1987-6-11 8602 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  SEINET7557947 Image available Carex echinata subsp. echinata Juha Pykala, D. H. Norris 1987-6-11 1611 Humboldt North Trinity Mountain Wilderness, W of Crogan Hole. 1554 Comment
  SEINET7557968 Image available Carex echinata subsp. phyllomanica L. P. Janeway 2003-7-30 7943 Humboldt High North Coast Ranges. White Rock Spring, just above Clear Lake, on southwest side below Titlow Hill Road, 2.9 km southeast of Titlow Hill. 1512 Comment
  CHSC98332  Carex feta Thomas W. Nelson; Jane P. Nelson 1982-7-11 7115 Humboldt North Coast Ranges. Along road from Hindley's cabin on McKeown's ranch to Anderson's ford at Mad River. T02N R05E S28 and 29. Comment
  SEINET7558591 Image available Carex feta Andrew L. Hipp 1999-5-31 457 Humboldt Alder Point, Alder Pt Rd ca 5 mi W of Alder Pt. Comment
  CAS-BOT-BC20870  Carex globosa Joseph Prince Tracy 1932-4-23 9832 Humboldt North Coast Ranges. Englewood. 91 Comment
  UC562716  Carex globosa Joseph P. Tracy 1927-7-4 8242 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC1108985  Carex gynodynama H. E. and S. T. Parks May, 1937 5813 Humboldt Spruce Cove, Trinidad, near sea level. Comment
  CHSC40134  Carex hendersonii L. P. Janeway 1983-5-29 320 Humboldt Along Jolly Giant Cr, e of HSU campus. 60 Comment
  HSC102203  Carex integra M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1118 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  CHSC90285  Carex laeviculmis Thomas W. Nelson; Jane P. Nelson 1987-6-11 8579 A Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  UC249733  Carex lenticularis var. limnophila Joseph P. Tracy 1923-6-17 6275 Humboldt Northern Coast Region, Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  CAS-BOT-BC31469  Carex leptopoda Charles Vancouver Piper 1921-5-22 s.n. Humboldt Eureka Comment
  SEINET7565140 Image available Carex leptopoda L. P. Janeway 2003-7-27 7929 Humboldt North Coast. On ridge between Stone Lagoon, Dry Lagoon and the beach (Sharp Point). Rodgers Peak 7.5' quad. 823 Comment
  HSC64164  Carex leptopoda J. O. Sawyer, K. A. Sawyer 1979-6-24 3408 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UC1103589  Carex luzulina var. ablata Joseph P. Tracy 1936-6-28 15026 Humboldt bog at Lake Prairie Bald Mountain 1066 Comment
  UC249751  Carex mendocinensis Joseph P. Tracy 1924-6-15 6697 Humboldt Northern Coast Ranges. Near Ruby Creek, on the Willow Creek highway. Comment
  HSC102160  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1070 Humboldt Patterson Meadows 1555 Comment
  HSC73580  Carex multicaulis Gail Newton 1980-7-14 1480 Humboldt Near Last Chance Ridge. 1219 Comment
  SEINET201051  Carex multicaulis J. P. Tracy 1927-3-27 7862 Humboldt Northern Coast Ranges Trinity River Valley near the South Fork 183 Comment
  HSC48134  Carex multicostata D. H. Norris 1971-7-17 19597 Humboldt At intersection of Kneeland-Bridgeville road and Redwood House road Comment
  HSC77271  Carex nebrascensis L. P. Janeway 1983-6-22 323 Humboldt Above Klamath River, near Aikens Creek 91 Comment
  CAS-BOT-BC119547  Carex nudata A. A. Heller 1923-7-10 13795 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  CHSC40169  Carex nudata L. P. Janeway 1984-5-13 777 Humboldt Along the North Fork Yager Creek 18 miles east of the Kneeland P.O. on the Kneeland/Bridgeville Road. 381 Comment
  CHSC47355  Carex nudata L. P. Janeway 1984-5-13 784 Humboldt Levee on E side Eel River near Fortuna and Sandy Prairie Rd. 12 Comment
  HSC44411  Carex nudata Thomas W. Nelson, Jane P. Nelson 1977-5-30 3407 Humboldt Mad River at Andersons Ford N of Dinsmore on the McKeown Ranch 610 Comment
  HSC45021  Carex nudata R. Sutherland 1978-5-16 116578 Humboldt Redwood Creek 143 Comment
  HSC7062  Carex obnupta J. W. Johnson 1961-4-19 1248 Humboldt Arcata, along Miller Lane, Miller Farm, Samoa Peninsula Comment
  CAS-BOT-BC119265  Carex ovalis Joseph Prince Tracy 1939-7-9 16315 Humboldt Bald Mt. Abundant in ditch 1 mi N of Murphy Meadows. 914 Comment
  HSC48138  Carex ovalis D. H. Norris 1971-7-17 19601 Humboldt Along Redwood House Rd., about 3 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  CAS-BOT-BC119239  Carex pachystachya Joseph Prince Tracy 1939-7-9 16324 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  CAS-BOT-BC118599  Carex praticola Joseph Prince Tracy 1936-5-29 14826 Humboldt Gans Prairie, on ridge E of Orick, in grassy flat. 548 Comment
  HSC70467  Carex rossii J. P. Tracy 1904-5-1 2041 Humboldt Eureka 0 Comment
  CAS-BOT-BC118230  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-17 10675 Humboldt Trinity Summit. Wet meadow heading into Devil's Hole. 1828 Comment
  CHSC106517  Carex serratodens Peter F. Zika 2009-6-19 24499 Humboldt Outer North Coast Range (NCoRO). Above Route 299, 0.7 road miles W of Berry Summit. 780 Comment
  HSC104335  Carex serratodens James Regan, Humboldt Redwood Co., LLC Jun 2011 32 Humboldt Kneeland, near Kneeland Airport 854 Comment
  HSC102114  Carex spectabilis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1018 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC117365  Carex stipata var. stipata Joseph Prince Tracy 1931-5-17 9422 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  CAS-BOT-BC116672  Carex subfusca Alice Eastwood; John Thomas Howell 1937-6-23 4792 Humboldt Near Dinsmore's. Comment
  HSC44120  Carex subfusca Thomas W. Nelson, Jane P. Nelson 1976-6-15 2735 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  CAS-BOT-BC115577  Carex tumulicola Joseph Prince Tracy 1915-6-6 4642 Humboldt At Eureka 60 Comment
  NY11390  Carex unilateralis J. P. Tracy 1912-7-21 3783 Humboldt 30.5 Comment
  CAS-BOT-BC115286  Carex utriculata Joseph Prince Tracy 1932-7-14 10563 Humboldt Trinity Summit, Corral Prairie in wet meadow. Comment
  POM126087  Carex utriculata Joseph P. Tracy 1924-7-4 6706 Humboldt Snow Camp. 1372 Comment
  UC665690  Carex viridula var. viridula H. E. Parks September 1935 5214 Humboldt s Orick (in center of Dry Lagoon) 0 Comment
  UCD96839  Carpobrotus chilensis Joseph P. Tracy 1947-9-1 17924 Humboldt Big Lagoon. 6 Comment
  CAS-BOT-BC248911  Castilleja M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  RSA167257  Castilleja affinis Joseph P. Tracy 1950-6-15 18799 Humboldt Mail Ridge, north of Harris 7 miles Comment
  JEPS8503  Castilleja affinis subsp. litoralis Joseph P. Tracy 1923-5-19 6208 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  SBBG52997  Castilleja affinis subsp. litoralis J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  UC1011939  Castilleja affinis subsp. litoralis F. W. Pennell and J. P. Tracy 1940-7-6 26082 Humboldt w of Lolita; Table Bluff 1 Comment
  UC1196863  Castilleja affinis subsp. litoralis Joseph P. Tracy 1912-4-21 3575 Humboldt n slope Humboldt Hill; Northern Coast Region, Humboldt Bay Region 0 Comment
  JEPS3617  Castilleja applegatei subsp. martinii Clyde Ritchie Bell 1951-4-21 Humboldt about 4 mi n Orleans (along Calif Hwy 96 (Klamath River road)) Comment
  CAS-BOT-BC255519  Castilleja applegatei var. pinetorum Duart V. Brown 1947-4-2 30 Humboldt Hillside just above river, near Sweed Creek, Trinity River 426 Comment
  JEPS2925  Castilleja arachnoidea W. L. Jepson Jul 16 1902-Jul 23 1902 2054 Humboldt Trinity Summit 2133 Comment
  HSC72570  Castilleja densiflora J. P. Smith, J. O. Sawyer 1976-5-2 8623 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  JEPS15207  Castilleja exserta subsp. exserta R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quad. Comment
  CAS-BOT-BC244883  Castilleja miniata Thomas W. Nelson; Jane P. Nelson 1979-7-11 5032 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit Comment
  HSC100658  Castilleja parviflora Carl C. Marshall May 1885 57 Humboldt Hills generally. Comment
  UC1502103  Ceanothus R. Sutherland 1975-7-4 8 .4.7 75 Humboldt Pt. Delgada Quad. 518 Comment
  UC1502126  Ceanothus R. Sutherland 1975-7-1 3 .1.7 75 Humboldt along Baker Creek; Garberville Quad., along Baker Creek 335 Comment
  CAS-BOT-BC32691  Ceanothus X humboldtensis James B. Roof 1987-4-15 s.n. Humboldt Originally collected at Manhart Ranch, near Miranda Comment
  HSC98535  Ceanothus arcuatus C. Witte 2007-5-17 30 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  CAS-BOT-BC49314  Ceanothus cuneatus Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  UCR32075  Ceanothus cuneatus David J. Keil 1983-7-2 17328 Humboldt Horse Mountain Summit SW of Willow Creek 1509 Comment
  JEPS42320  Ceanothus foliosus W. L. Jepson 1902-8-10 2171 Humboldt Comptche to Low Gap 762 Comment
  JEPS82329  Ceanothus foliosus var. foliosus Roger Raiche 1983-7-18 30531 Humboldt King Peak Road, 2.4 mi N of road to Shelter Cove King Range 518 Comment
  UC502945  Ceanothus incanus Joseph P. Tracy 1932-5-1 9878 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  JEPS42458  Ceanothus integerrimus W. L. Jepson 1902-6-19 1879 Humboldt Bell's Spring to Harris 1066 Comment
Read comments
Sep 7 2007
  UC668164  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13180 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC18379  Ceanothus oliganthus var. sorediatus DWC 1956-4-26 Humboldt N of Honeydew Comment
  HSC97280  Ceanothus oliganthus var. sorediatus J. R. McFarland 1997-4-10 Humboldt 3.7 mi N on King Range Rd. from Shelter Cove Rd. near peak 602 Comment
  POM282990  Ceanothus oliganthus var. sorediatus Lyman Benson 1929-7-19 1596 Humboldt Dyerville to Matole River. Comment
  UC1193285  Ceanothus oliganthus var. sorediatus P. Zinke 1950-8-26 157 Humboldt Salmon Creek 3 mi w Miranda; Quad. 29C1, Salmon Creek 91 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
  SD53199  Ceanothus parryi D. F. Howe 1962-5-21 Humboldt 2.3 miles north of Garberville on #101 152 Comment
  UC1502108  Ceanothus parryi R. Sutherland 1975-4-19 A 4 .19.4.75 Humboldt Whitethorn Road at Van Arken Creek; Briceland Quad., Van Arken Creek 298 Comment
  UC170020  Ceanothus parryi Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5416 Humboldt Between Hubbard's Station and Elk Prairie Comment
  UC249584  Ceanothus parryi Joseph P. Tracy 1921-6-12 5823 Humboldt Butler Valley Road near Kneelans Prairie 457 Comment
  UCSB11762  Ceanothus parryi Neuns, R. 1940-7-13 Humboldt 3 miles south of Alder Point 548 Comment
  CAS-BOT-BC52953  Ceanothus thyrsiflorus Doris K. Kildale 1927-5-14 3290 Humboldt Big Lagoon Comment
  HSC31463  Ceanothus thyrsiflorus Steve Selva, Roger Jensen 1974-8-28 100 Humboldt Behind HSU Campus Comment
  HSC37081  Ceanothus thyrsiflorus R. Sutherland 1975-5-17 2 .17575 Humboldt Horse Mtn. Rd. edge 518 Comment
  UC1004333  Ceanothus thyrsiflorus W. L. Colwell 1954-11-20 21 Humboldt along Eel River 3 mi e South Fork (Quad. 29B4); along Eel River e of South Fork, Quad. 29B4 91 Comment
  SEINET13946096 Image available Ceanothus thyrsiflorus F. G. Meyer 1938-1 1404 Humboldt 30 mi N of Eureka Comment
  CAS-BOT-BC52867  Ceanothus velutinus Joseph P. Tracy 1932-7-17 10698 Humboldt Klamath Mountains - open ground at Corral Prairie 1524 Comment
  HSC37061  Ceanothus velutinus R. Sutherland 1975-6-19 0 .19675 Humboldt 320 Comment
  UC1052836  Ceanothus velutinus W. L. Colwell 1955-6-7 28 Humboldt three mi w Weott (one half mi n of Grasshopper Mountain lookout); Quad. 29B3, n of Grasshopper Mountain lookout 914 Comment
  RSA24331  Ceanothus velutinus var. laevigatus Carl B. Wolf 1941-2-26 9964 Humboldt 4.4 miles W of Klamath River Bridge on Witchpec to Orick road. 305 Comment
  CDA7087  Centaurea calcitrapa T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 miles south of Redcrest. 0 Comment
  CDA39219  Centaurea maculosa Weylan Shaw 2013-8-2 PDR# 120 P06003643 Humboldt Vicinity of Blue Lake, near the Mad River. Comment
  UC604648  Centaurium erythraea Joseph P. Tracy 1938-7-18 16085 Humboldt 4 mi se Arcata; Fickle Hill 365 Comment
  UC906720  Centunculus minimus Joseph P. Tracy 1942-6-15 17156 Humboldt Garberville 152 Comment
  BLMAR202  Cephalanthera austiniae Jennifer Anthony-Wheeler 1996-7-9 202 Humboldt Pilot ridge. 1280 Comment
  HSC98795  Cephalanthera austiniae Cara Witte 2008-7-3 828 Humboldt Intersection of Friday Ridge Rd (6N08) and 5N39 1512 Comment
  CAS-BOT-BC384904  Cerastium arvense Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC161036  Cerastium arvense Joseph P. Tracy 1909-8-1 3067 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1198313  Cerastium arvense Joseph P. Tracy 1900-6-5 845 Humboldt bluffs back of Bucksport (at Eureka); Northern Coast Region, Eureka 0 Comment
  UC852498  Cerastium arvense Milo S. Baker 1931-5-17 5187 Humboldt along Hwy. 4.2 mi. s. Garberville Comment
  JEPS51355  Cerastium viride Lincoln Constance 1934-6-3 805 Humboldt on Redwood Hwy. 1 mi. n. Dyerville (rd. from High Rock to Horse Prairie); S. Fork Eel R., Bull Creek Region Comment
  UC527564  Cercis occidentalis C. B. Wolf 1931-8-31 2380 Humboldt Sandy Bar Swimming Hole South Fork of Trinity River (slopes on w side of river 1 mi above its mouth) 243 Comment
  UC535726  Cercocarpus betuloides var. betuloides Eleanor Armstrong 1934-8-22 1184 Humboldt Richardson Grove 121 Comment
  HSC41651  Chamaecyparis lawsoniana Thomas W. Nelson 1977-10-20 3758 Humboldt Above junction of Maple Creek and Kneeland Rds. 854 Comment
  UC502947  Chamaesyce serpyllifolia Joseph P. Tracy 1930-10-12 9208 Humboldt Eel River Northern Coast Ranges (Alton to Fortuna) 15 Comment
  HSC55194  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-8-2 12274 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC55206  Chamerion angustifolium subsp. circumvagum Overton 1979-8-1 12324 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  UC1122511  Chamerion angustifolium subsp. circumvagum H. L. Person 1932-7-16 Humboldt hwy n Trinidad; Rock Point Quadrangle Comment
Read comments
Aug 3 2007
  UC62675  Cheilanthes gracillima W. C. Blasdale 1896-6-6 Humboldt Kneeland Comment
  UC79873  Chenopodium rubrum Harold E. Parks and Joseph P. Tracy 1934-10-13 11151 Humboldt Big Lagoon; shore 3 Comment
  HSC100471  Chimaphila menziesii Carl C. Marshall Jun 1885 89 Humboldt Higher hills. Comment
  SEINET10539751  Chimaphila menziesii Botany 1985-5-10 BOTANY s.n. Humboldt T5n,r6e,sec.34, h.m.; Grays falls campground off hwy 299. Shaded understory, Douglas fir, madrone, canyon live oak 241 Comment
  HSC48860  Chimaphila umbellata Brad Klipfel 1973-7-31 251 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55227  Chimaphila umbellata G. L. Clifton, Griswold 1979-8-2 12427 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA249505  Chimaphila umbellata subsp. occidentalis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35145 Humboldt King Mountain 1220 Comment
  RSA20793  Chimaphila umbellata subsp. occidentalis C. B. Wolf 1937-8-13 9258 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  SEINET3992219  Chlorogalum pomeridianum Unknown 1946-7-7 17611 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1225859  Chlorogalum pomeridianum var. pomeridianum Joseph P. Tracy 1946-7-7 17611 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC404019  Chlorogalum pomeridianum var. pomeridianum P. E. Goddard 1901-7 11 Humboldt Hupa Comment
  HSC98053  Chlorogalum pomeridianum var. pomeridianum Cara Witte 2007-7-17 541 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1302 Comment
  UCD123795  Chloropyron maritimum subsp. palustre Malcolm A. Nobs; S. Galen Smith 1949-8-3 1200 Humboldt bordering Humboldt Bay, about 2 miles north of Eureka. Comment
  HSC70637  Chrysolepis chrysophylla R. York 1980-5-18 597 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC36477  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1937-7-29 15589 Humboldt Northern Coast Ranges. South Fork Mountain, west slope near top, at Hyampom Trail 1676 Comment
  HSC98993  Chrysolepis chrysophylla var. minor Cara Witte 2008-7-1 786 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .5 mile south of intersection with 5N04 and 4N32E. 1406 Comment
  UC667993  Chrysolepis sempervirens Joseph P. Tracy 1937-7-29 15583 Humboldt summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC906758  Cicendia quadrangularis Joseph P. Tracy 1942-5-16 17342 Humboldt Garberville 152 Comment
  UC164825  Cichorium intybus Joseph P. Tracy 1907-6-20 2572 Humboldt Northern Coast Region; vicinity of Eureka Comment
  UC154047  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
  HSC53826  Circaea alpina subsp. pacifica Griswold, Butler 1979-7-10 6273 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC53929  Circaea alpina subsp. pacifica Griswold, Butler 1979-7-11 6944 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC58391  Circaea alpina subsp. pacifica G. L. Clifton 1979-7-31 14100 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1433 Comment
  RSA20788  Circaea alpina subsp. pacifica Carl B. Wolf 1937-8-13 9253 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  HSC100575  Circaea pacifica Carl C. Marshall Jul 1886 348 Humboldt Xavier's Place, Bald Hills. Comment
  UC1119170  Cirsium arvense H. L. Person 1932-7-21 Humboldt Blue Lake Eureka 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
  UCD130554  Cirsium arvense R. E. Nelson 1956-7-3 192 b Humboldt 1.5 miles south of Brush Mountain in vicinity of Salyer , Six Rivers National Forest. 792 Comment
  CAS-BOT-BC284441  Cirsium brevistylum L. R. Abrams 1927-9-1 12062 Humboldt Big Lagoon Comment
  JEPS59310  Cirsium brevistylum W. L. Jepson 1936-8-15 17900 Humboldt 2 mi e Carlotta Comment
  SEINET200853  Cirsium breweri Joseph P. Tracy 1924-7-6 6717 Humboldt Near Ruby Creek on the Willow Creek Hwy north coast ranges Comment
  CAS-BOT-BC285529  Cirsium occidentale var. candidissimum L. B. Kildale 1930-7-7 10261 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  RSA43690  Cirsium occidentale var. candidissimum H. M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  CAS-BOT-BC288720  Cirsium remotifolium Joseph P. Tracy 1938-7-6 16025 Humboldt Big Lagoon 30 Comment
  UC302188  Cirsium remotifolium Joseph P. Tracy 1926-7-5 7740 Humboldt Iaqua Northern Coast Ranges, Iaqua 609 Comment
  UCD130816  Cirsium vulgare R. E. Nelson 1956-7-3 192 a Humboldt 1.5 miles south of Brush Mountain in vicinity of Salyer , Six Rivers National Forest. 792 Comment
  CAS-BOT-BC164174  Clarkia concinna Doris K. Kildale 1927-5-17 3179 Humboldt Fish Creek near Garberville Comment
  POM72830  Clarkia purpurea subsp. purpurea P. A. Munz 1925-6-20 9886 Humboldt Garberville Comment
  POM208995  Clarkia purpurea subsp. quadrivulnera Lincoln Constance 1934-5-23 619 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park. 366 Comment
  UC314618  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1923-7-4 6527 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  CAS-BOT-BC172389  Clarkia purpurea subsp. viminea Doris K. Kildale 1927-6-25 3584 Humboldt Near Ettersburg Comment
  CAS-BOT-BC172391  Clarkia purpurea subsp. viminea S. K. Harris; J. P. Tracy 1936-6-10 3277 Humboldt Hills west of the South Fork of the Trinity River near its mouth 640 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
  HSC26366  Claytonia perfoliata T. O. Osborne 1970-4-5 82 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  CAS-BOT-BC439932  Claytonia perfoliata subsp. mexicana C. E. Fellows 1972-4-29 480 C Humboldt Ca. 8 miles ESE of Eureka. 3.1 miles above the town of Freshwater on the W side of the road to Kneeland. Ca. 20 m below the road (and the dump) 609 Comment
  HSC71810  Claytonia saxosa Thomas W. Nelson, Jane P. Nelson 1980-6-27 5952 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  RSA259540  Claytonia saxosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5623 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  CAS-BOT-BC443887  Claytonia sibirica Henry M. Pollard 1946-8-11 s.n. Humboldt Perch Creek, Orleans region Comment
  HSC17734  Claytonia sibirica Harvey Doerksen 1962-5-4 1 Humboldt 1/4 mi. W of Korbel on S side of Mad River Comment
  HSC17738  Claytonia sibirica J. R. Eichelberger 1964-4-10 25 Humboldt 4 mi. above Blue Lake on Hwy. 299 Comment
  UC1136740  Claytonia sibirica H. L. Person 1932-8-8 Humboldt Freshwater; Eureka Quad. Comment
  UC162715  Claytonia sibirica Mrs. M. H. Manning Sep 1901 Humboldt near Hupa Comment
  CAS-BOT-BC443885  Claytonia sibirica Ella Dales Cantelow 1938-10-26 2185 Humboldt Nr. Red Cap Creek, S.W. of Orleans Comment
  CAS-BOT-BC443898  Claytonia sibirica C. E. Etienne 1972-9-4 s.n. Humboldt Lumber road to Klamath River, ca 8 mi. inland and 1 mi. N of the Humboldt Co. line. 30 Comment
  SD51264  Claytonia sibirica Darley F. Howe 1961-8-1 3114 Humboldt 12.7 miles north of Arcata on #101 Comment
  UC1028307  Claytonia sibirica George B. Rossbach 1955-6-8 263 Humboldt Prairie Creek Redwoods State Park (Route 101) Comment
  HSC14260  Clinopodium douglasii Paul Shields Jun 1955 Humboldt 3 mi. N of Weott Comment
  UCSB12091  Clintonia andrewsiana Dearing, Hugh; Dearing, Margaret 1931-5-16 Humboldt Weott Comment
  HSC15445  Clintonia andrewsiana J. F. Knezevich 1968-5-13 428 Humboldt Near Arcata above Freshwater Forest Comment
  HSC15447  Clintonia andrewsiana D. E. Anderson 1963-5-25 2478 Humboldt 4 mi. N of Capetown Comment
  RSA39092  Clintonia andrewsiana Philip A. Munz 1948-8-15 12359 Humboldt Van Duzen Redwood State Park. Comment
  HSC100555  Clintonia uniflora Carl C. Marshall Jun 1886 316 Humboldt Trail E of Hoopa. Comment
  HSC57697  Clintonia uniflora G. L. Clifton, Griswold 1979-7-25 10926 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  SEINET4170316  Clintonia uniflora Unknown 1908-6-27 2733 Humboldt Along Van Duzen River at foot of Buck Mountain, northwest slope 305 Comment
  HSC92754  Coincya monensis Jim Belsher 1997-2-13 1 Humboldt Lot ESE of the Manila Community Services District sewage pump station 6 Comment
  JEPS14933  Collinsia grandiflora H. E. Parks and J. P. Tracy 1930-5-25 741 Humboldt Laribee Valley 762 Comment
  UC1174489  Collinsia grandiflora Volney Rattan 1903-1 1878 Humboldt Comment
  RSA127512  Collinsia linearis Milo S. Baker 1946-6-15 11486 Humboldt Near Head of Willow Cr. Canyon, Trinity Hwy. Comment
  UC1347175  Collinsia linearis Alice Eastwood, John Thomas Howell 1937-6-24 4858 Humboldt road to Horse Mountain Horse Mountain Comment
  JEPS26356  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1916-5-2 4685 Humboldt garden Eureka; North Coast Ranges 762 Comment
  SBBG6896  Collinsia torreyi var. torreyi H. and M. Dearing 1939-6-21 3688 Humboldt E fork of Willow Crk Comment
  UC582446  Collinsia torreyi var. wrightii Joseph P. Tracy 1933-7-16 12777 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  UC906687  Collomia grandiflora Joseph P. Tracy 1944-7-3 17485 Humboldt Willow Creek Trinity River Valley 152 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
  HSC60033  Collomia heterophylla M. A. Baker 1978-5-6 477 Humboldt Bald Hills Rd., between Klamath River and French Camp Rd. Comment
  UC52647  Collomia heterophylla Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC774987  Collomia heterophylla Carl B. Wolf 1937-8-13 9214 Humboldt 8 mi e Hoopa Valley (on new road towards Trinity Summit); North Coast Range 1219 Comment
  RSA125656  Collomia heterophylla E. K. Balls 1957-5-25 22604 Humboldt 8.1 mi. sw. from Dinsmores, State Hwy. 36. 823 Comment
  HSC45406  Collomia tracyi Thomas W. Nelson, Jane P. Nelson 1977-7-4 3609 Humboldt Along road N from Alder Springs 1524 Comment
  HSC37858  Conium maculatum Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  HSC27899  Conium maculatum B. R. Templeton 1962-5-15 Humboldt 3 mi S of Arcata Comment
  UC165028  Conyza canadensis J. P. Tracy 1906-8-18 2540 Humboldt immediate vicinity Eureka 0 Comment
  HSC91919  Conyza canadensis E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  RSA0049662  Coptis laciniata Dean Wm. Taylor 2011-5-4 21115 Humboldt Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junciton with Highway 36 734 Comment
  UC160953  Coptis laciniata Joseph P. Tracy Jul 27 1908-Jul 30 1908 2729 Humboldt opposite Buck Mountain (Northern Coast Ranges, Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC176373  Corallorhiza maculata Joseph P. Tracy 1913-6-17 4191 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1524 Comment
  UC1196454  Corallorhiza mertensiana Joseph P. Tracy 1947-7-5 17826 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1196462  Corallorhiza striata Joseph P. Tracy 1918-5-28 4935 Humboldt on slope below High Prairie (near Redwood Creek); Northern Coast Ranges 609 Comment
  HSC90780  Cordylanthus maritimus subsp. palustris Peter Sorensen 1976-6-16 Humboldt Woodley Island. Comment
  JEPS55932  Cordylanthus maritimus subsp. palustris T. I. Chuang, L. R. Heckard and R. Bacigalupi 1968-7-3 6455 Humboldt Coastal Salt Marsh, ne edge Arcata Bay Comment
  CAS-BOT-BC101143  Corethrogyne filaginifolia Doris K. Kildale 1927-6-25 3562 Humboldt Shelter Cove Comment
  CAS-BOT-BC212020  Cornus nuttallii H. L. Mason 1928-7-14 4897 Humboldt East fork of Eel River near Garberville Comment
  RSA183588  Cornus nuttallii D. E. Anderson 1965-4-24 3549 Humboldt About 1 mile east of Redwood Creek bridge on Highway 299. Comment
  RSA85517  Cornus nuttallii G. R. Campbell 1954-3-24 19022 Humboldt 17.4 mi. east of jct. of hwys 101 and 299 above Blue Lake. Comment
  RSA0019453  Cornus occidentalis C. B. Wolf 1937-8-13 9251 Humboldt North Coast Range, 11 mi. E of Hoopa Valley on new road towards Trinity Summit. 1524 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
  HSC26713  Cornus sessilis D. E. Anderson 1973-5-13 6027 Humboldt 100 meters S of Jct. of E Fork of Willow Creek and Willow Creek proper. Comment
  CAS-BOT-BC210540  Cornus sessilis L. R. Abrams 1918-6-17 7207 Humboldt Between Hoopa & Briars Resort on road to Korbel Comment
  UC1199211  Coronopus didymus Joseph P. Tracy 1901-7-31 1234 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  UC1199212  Coronopus didymus Joseph P. Tracy 1946-5-30 17540 1/2 Humboldt vicinity of Carlotta 30 Comment
  HSC93466  Cortaderia selloana Gordon Leppig 1998-10-26 1106 Humboldt Arcata, Bayside Rd. at Crescent Way 6 Comment
  UC1103505  Corylus californica Joseph P. Tracy 1909-8-29 3080 Humboldt Humboldt Hill, N side Northern Coast Region, region about Humboldt Bay 0 Comment
  CAS-BOT-BC180305  Corylus cornuta subsp. californica Carl D. Duncan 1920-9-27 s.n. Humboldt Hoopa Comment
  HSC70453  Corylus cornuta subsp. californica Gail Newton 1980-7-20 1642 Humboldt Near Bell Swamps 1426 Comment
  OBI36662  Corylus cornuta subsp. californica David J. Keil 1983-7-2 17312 Humboldt Ca. 4 mi SE of SR 299 along Titlow HIll Rd below Horse Mtn Summit Rd Comment
  UCD110089  Corylus cornuta subsp. californica J. Street 1950-6-24 s.n. Humboldt Honeydew. Comment
  RSA730001  Cotoneaster pannosus Peter F. Zika 2007-7-20 263324 Humboldt NCo, North Coast: Lynda Lane near high school, S end of Big Lagoon. 20 Comment
  SD39859  Crepis capillaris Edith A. Purer 1932-7-30 4679 Humboldt South or Orick Comment
  UC1051583  Crepis capillaris Joseph P. Tracy 1949-9-26 18229 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1071676  Crepis capillaris H. L. Person 1932-7-19 Humboldt Lindsay Creek Eureka Quadrangle Comment
  UC1981756  Crepis setosa R. Spellenberg, N. Zucker 2011-7-24 14298 Humboldt Miranda, on the W side of highway in center of town. Comment
  CAS-BOT-BC290908  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto [Horse Linto] Creek 152 Comment
  CAS-BOT-BC299700  Crocidium Doris K. Kildale 1926-3-21 1570 Humboldt Kneeland Prarie 853 Comment
  UC176812  Crocidium multicaule Joseph P. Tracy 1913-5-4 4048 Humboldt Kneeland Prairie North Coast Ranges, Kneeland Prairie 762 Comment
  POM126511  Crocidium multicaule Joseph P. Tracy 1922-5-29 6075 Humboldt South Yager Creek Valley. 762 Comment
  SEINET10529035  Crocosmia aurea Charlene A. Bennett 1976-8-6 Bennett 477 Humboldt Collected by hwy. 101, N side of orick. Rocky area, densely forested by river 30 Comment
  HSC102928  Cryptantha M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 900 Humboldt Patterson Meadows 1566 Comment
  HSC3566  Cryptantha affinis J. P. Tracy, H. E. Parks 1934-6-27 11059 Humboldt Grouse Mtn. Comment
  UC175790  Cryptantha intermedia Joseph P. Tracy 1911-7-8 3453 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley Of Trinity River 152 Comment
  JEPS67872  Cryptantha torreyana Joseph P. Tracy 1921-6-19 5841 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC179963  Cryptantha torreyana Joseph P. Tracy 1914-7-5 4560 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  MACF017398  Cupressus macrocarpa Trudy R. Ericson 1974-8-6 204 Humboldt Off U.S. 101, exit to Patrick's Beach State Park, near Seaward Drive. Comment
  CDA39929  Cuscuta campestris E. C. Whitney 1962-9-17 s.n. Humboldt W.E. Bartlett property, Shively. 0 Comment
  UC604649  Cuscuta campestris Joseph P. Tracy 1938-8-28 16138 Humboldt Stone Lagoon Beach 6 Comment
  HSC95576  Cuscuta pacifica var. pacifica Andrea Pickart 2002-8-8 190 Humboldt Arcata Marsh at end of I st. 0 Comment
  UC906653  Cyclospermum leptophyllum Joseph P. Tracy 1946-7-13 17613 Humboldt vicinity Carlotta 30 Comment
  CAS-BOT-BC190372  Cynosurus cristatus Malcom A. Nobs; S. Galen Smith 1949-8-3 1195 Humboldt At the southern outskirts of Eureka. Comment
  HSC9520  Cynosurus echinatus True Hoyle 1967-7-24 29067 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass Comment
  RSA10069  Cynosurus echinatus Joseph P. Tracy, H. E. Parks 1933-6-11 12542 Humboldt Near Miranda 152 Comment
  UC1103245  Cynosurus echinatus Joseph P. Tracy 1947-6-28 17753 Humboldt Larrabee Valley 731 Comment
  UC303019  Cyperus bipartitus Joseph P. Tracy 1926-8-12 7766 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  CAS-BOT-BC114623  Cyperus eragrostis Joseph Prince Tracy 1937-8-3 15612 Humboldt Near Blue Lake, along Mad River. 15 Comment
  HSC96342  Cyperus esculentus Gordon Leppig 2004-8-25 2195 Humboldt E edge of Eel River at Holmes Flat Comment
  RSA54120  Cyperus squarrosus Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  CAS-BOT-BC133727  Cypripedium californicum E. P. Chase 1933-7-1 2008 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  HSC55183  Cystopteris fragilis G. L. Clifton, Griswold 1979-8-2 12217 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CDA36734  Cytisus scoparius Richard R. Halse 2010-3-25 7856 Humboldt Along U.S. Hwy 101 ca. 9.7 miles south of Orick. Comment
  SEINET12152438  Cytisus scoparius J. P. Tracy 1950-1 18830 Humboldt Eureka Comment
  HSC9542  Dactylis glomerata S. R. Johnson 1965-5-10 54 Humboldt 1.0 mi. N of Luffenholtz Beach Comment
  RSA54136  Dactylis glomerata Henry M. Pollard 1946-8-25 s.n Humboldt Wilson Creek. Orleans region Comment
  HSC9552  Danthonia californica J. P. Tracy 1927-7-4 8234 Humboldt Lone-Star Creek, Iagua. 610 Comment
  HSC98940  Danthonia californica Cara Witte 2007-6-21 330 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  UC70789  Danthonia californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5678 Humboldt Hoopa Mt. Comment
  UCD60698  Danthonia californica var. americana G. L. Stebbins Jr. 1942-6-3 3483 Humboldt Near Garberville, 1.4 miles on road to Harris. Comment
  UCD60699  Danthonia californica var. americana A. Murphy; R. Tofsrud 1947-5-20 31 Humboldt Baker Ranch, 10 mi. N of Bridgeville. Comment
  RSA10088  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC420360  Darmera peltata Volney Rattan 1903-1-1 s.n. Humboldt unspecified Comment
  HSC20251  Darmera peltata C. F. Hudson 1964-5-7 6436 Humboldt 2 mi. up river from the mouth of Mad River, S bank 1 Comment
  CHSC26758  Daucus carota M. S. Taylor 1977-8-5 1432 Humboldt Around bridge over Eeel River, at turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  UCR123959  Daucus carota George K. Helmkamp, E. A. Helmkamp 2001-7-8 6985 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  HSC46960  Daucus pusillus J. P. Smith, Thomas W. Nelson 1977-6-30 9200 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  UC1197353  Daucus pusillus Harley P. Chandler May, 1901 1154 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 Comment
  SEINET4855208  Delphinium decorum subsp. tracyi Unknown 1930-5-25 789 Humboldt Laribee Valley. 915 Comment
  SJSU3556  Delphinium decorum subsp. tracyi R. D. Spadoni 1965-5-1 45 Humboldt c. 10 mi SE of Bridgeville on State Rte 36 533 Comment
  UC183704  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4171 Humboldt near the summit Northern Coast Ranges, Buck Mountain 1676 Comment
  UC427876  Delphinium decorum subsp. tracyi H. E. Parks and J. P. Tracy 1930-5-25 789 Humboldt Laribee Valley 914 Comment
  UC503043  Delphinium decorum subsp. tracyi Joseph P. Tracy 1927-6-12 8160 Humboldt lower slopes Northern Coast Ranges, Horse Mountain 1219 Comment
  HSC97643  Delphinium decorum subsp. tracyi C. Witte 2007-5-22 78 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  UC1005604  Delphinium decorum subsp. tracyi Frank W. Gould 1939-5-29 837 Humboldt in wet meadow near ski hut; Horse Mountain 1005 Comment
  CAS-BOT-BC10316  Delphinium hesperium Doris K. Kildale 1927-7-1 3620 Humboldt Alton Hill 30 Comment
  SD46536  Delphinium hesperium E. K. Balls, L. W. Lenz 1956-6-12 21665 Humboldt 9.1 miles ne from Blue Lake along U.S. Hwy. 299, Arcata to Willow Creek. 487 Comment
  HSC36195  Delphinium menziesii John Rehling 1975-5-15 83 Humboldt 8 mi. W of Ferndale on the Mattole Rd. Comment
  UCSB28370  Delphinium nudicaule Phelps, M. 1972-3-19 Humboldt 0.4 mi. east of Elk Point; near Basin Creek; Somerville Ranch; Garberville 457 Comment
  HSC38707  Delphinium nuttallianum J. P. Smith 1976-5-29 8818 Humboldt Horse Mtn. 1402 Comment
  RSA400116  Delphinium nuttallianum M. A. Baker 1979-6-27 933 Humboldt At head of Oregon Creek. Comment
  OBI35868  Delphinium trolliifolium David J. Keil 1983-7-2 17344 Humboldt 21 mi S of SR 299 along Titlow Hill Rd, SW of Willow Crk Comment
  UC160931  Delphinium trolliifolium Joseph P. Tracy 1908-6 2713 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC1299388  Delphinium trolliifolium Freed W. Hoffman 1946-5-20 964 Humboldt hills near Capetown Comment
  UC668070  Delphinium trolliifolium Joseph P. Tracy 1935-6-23 14000 Humboldt near Coyote Peak; French Camp Ridge 1066 Comment
  HSC82970  Deschampsia cespitosa subsp. beringensis A. L. Eicher 1985-8-8 Humboldt Salt marsh bordering Elk River, 0.4 mi. NW of the Elk River bridge. 1 Comment
  UC595124  Deschampsia cespitosa subsp. beringensis David D. Keck 1938-8-5 4773 Humboldt Big Lagoon Comment
  CAS-BOT-BC192545  Deschampsia cespitosa subsp. holciformis J. B. Davy; W. C. Blasdale 1899-5-1 6214 Humboldt Eureka Comment
  HSC37771  Deschampsia cespitosa subsp. holciformis D. E. Anderson, J. P. Smith 1971-6-14 - 1040 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  HSC40327  Deschampsia danthonioides Thomas W. Nelson, Jane P. Nelson 1976-6-22 2860 Humboldt Bog along road to Goat Hill. 1646 Comment
  CAS-BOT-BC201777  Deschampsia elongata Joseph P. Tracy 1932-7-14 10552 Humboldt At Corral Prairie 1524 Comment
  HSC58402  Deschampsia elongata Griswold, Butler 1979-7-11 7035 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  RSA10093  Deschampsia elongata Joseph P. Tracy 1933-7-25 12872 Humboldt Goose Mountain; along streamlet 1524 Comment
Read comments
Jul 26 2012
  UC1198795  Descurainia incana Joseph P. Tracy 1935-7-22 14128 Humboldt Corral Prairie Trinity Summit (along trail) 1584 Comment
  UC1196309  Dicentra formosa Joseph P. Tracy 1921-3-13 5422 Humboldt Alton; Northern Coast Region 30 Comment
  UC1222561  Dicentra formosa Joseph P. Tracy 1950-6-8 18719 Humboldt 7 mi s Ferndale (Mountain Glen); Bear River Ridge, Mountain Glen 609 Comment
  RSA433573  Dicentra formosa subsp. formosa Hutchinson 1927-05 s.n. Humboldt [No location data on label] Comment
  CAS-BOT-BC402539  Dicentra pauciflora Joseph P. Tracy 1933-7-11 12691 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  UC1198186  Dichelostemma X venustum Joseph P. Tracy 1928-6-24 8468 Humboldt Valley of South Yager Creek 762 Comment
  UC1198171  Dichelostemma capitatum Joseph P. Tracy 1947-5-10 17685 Humboldt Miranda, along the South Fork of Eel River South Fork of Eel River 121 Comment
  HSC32860  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, James Nelson 1973-5-28 939 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC3002  Dichelostemma capitatum subsp. capitatum Francis Winter 1960-5-7 Humboldt 3 mi. N of Redwood Creek Ranch 457 Comment
  SEINET6879153  Dichelostemma congestum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  UC1198164  Dichelostemma congestum Joseph P. Tracy 1917-6-17 4814 Humboldt near Field's Landing (Still Farm, near Humboldt Bay); Northern Coast Ranges, Humboldt Bay 15 Comment
  HSC3033  Dichelostemma ida-maia H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  SBBG892  Dichelostemma ida-maia K. K. Muller 1954-6-21 628 Humboldt Mad River Camp 2 on Mad River Comment
  UC1222690  Dichelostemma ida-maia Joseph P. Tracy with A. H. Murphy 1951-6-26 19568 Humboldt vicinity Twin Lakes and Snow Camp; Twin Lakes Comment
  CAS-BOT-BC501024  Dichelostemma ida-maia Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC44728  Dichelostemma ida-maia Maralyn O'Meara 1972-6-8 79 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  SEINET8476733  Dichelostemma ida-maia M. J. Williams 1969-5-23 s.n. Humboldt Bald Hills. 152 Comment
  SEINET3885767  Dichelostemma pulchellum Mary Merello, H. H. Schimdt; L. Woodruff 1993-6-19 662 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest.; 0 90 Comment
  SEINET3885674  Dichelostemma pulchellum James P. Smith 1973-5-5 6485 Humboldt Roadside and streamside along Cook and Green Pass.; 0 Comment
  JEPS15182  Digitalis purpurea G. T. Nordstrom Jul 1937 1442 Humboldt 1.6 mi wsw Orick; Orick Quad. 45 Comment
  CAS-BOT-BC150339  Diplacus aurantiacus Doris K. Kildale 1926-3-20 1547 Humboldt Near mouth of Little River Comment
  CAS-BOT-BC153324  Diplacus layneae Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  POM118601  Disporum smithii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  POM319490  Disporum smithii Patricia Wilder 1968-8-22 4424 Humboldt Coastal rain forest 7 miles S of Ferndale on Mattole Road, N of Cape Mendocino and Capetown, Mt. Range: Bear River Ridge; Drainage Area: Oil Creek to Pacific. 549 Comment
  JEPS55589  Disporum smithii W. Roderick 1961-6-28 Humboldt 5.4 road mi ne of Weitchpec (Klamath River); Klamath River Comment
  SACT001019  Distichlis spicata var. stolonifera Malcolm Nobs, S. Smith 1949-8-3 Humboldt Salt Marshes. Comment
  UC1198623  Dodecatheon hendersonii Joseph P. Tracy 1933-7-11 12702 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC55019  Dodecatheon jeffreyi Overton, Butler 1979-7-31 11426 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1199494  Downingia elegans Joseph P. Tracy 1933-4-30 13053 Humboldt Grouse Mountain Northern Coast Ranges 1524 Comment
  RSA23339  Downingia elegans var. corymbosa Joseph P. Tracy 1923-6-20 6339 Humboldt Miranda. 122 Comment
  CAS-BOT-BC401534  Drosera rotundifolia Carl B. Wolf 1927-8-1 s.n. Humboldt Marsh near Eureka Comment
  SEINET6424295 Image available Dryopteris dilatata Hicks, Carpenter 1977-7-12 Humboldt Prairie Creek State Park Comment
  UCSB30620  Dryopteris expansa Edwards, David 1974-9-2 Humboldt ca. 5ft N of dirt road, ca. 350 ft from its junction with Fickle Hill Rd., Arcata. 106 Comment
  CDA30189  Echinochloa crus-galli M. K. Beyers, I. Sheperdson 2009-9-13 239 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  UC668027  Eleocharis acicularis Joseph P. Tracy 1935-5-30 10535 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  RSA275279  Eleocharis acicularis var. acicularis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3592 Humboldt Pond above Alder Springs 1585 Comment
  HSC7307  Eleocharis macrostachya D. E. Anderson 1961-9-9 1783 Humboldt Along Hwy. 101 Comment
  SEINET3910832  Eleocharis macrostachya Thomas Nelson 1977-9-22 3749 Humboldt Eureka Quad. Along east side of State Route 101 just north of the Eureka Airport.; 0 Comment
  UC668025  Eleocharis macrostachya Joseph P. Tracy 1927-7-17 8284 Humboldt Three Cabins North Coast Ranges (grassy slopes on lower western foothills of Chaparral Mountain) 457 Comment
  JEPS19323  Eleocharis pachycarpa Joseph P. Tracy 1926-7-25 7757 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC303018  Eleocharis pachycarpa Joseph P. Tracy 1926-7-25 7757 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  POM313063  Eleocharis pachycarpa Malcolm A. Nobs, S. Galen Smith 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon Comment
  UC53395  Elymus glaucus Joseph Burtt Davy and Walter C. Blasdale 1899-6-16 5565 Humboldt Alton Comment
  UCD61792  Elymus glaucus J. B. Davy; W. C. Blasdale 1899-6-16 5565 Humboldt Alton. Comment
  CAS-BOT-BC203475  Elymus glaucus subsp. glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie, on Bald Mountain 1066 Comment
  HSC58601  Elymus glaucus subsp. glaucus G. L. Clifton, Griswold 1979-7-25 10826 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UCD62351  Elymus glaucus subsp. glaucus A. A. Beetle; G. L. Stebbins Jr. 1942-6-3 3484 Humboldt Near Garberville, 1.4 miles on road to Harris. Comment
  CAS-BOT-BC203800  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8215 Humboldt Stone Lagoon 6 Comment
  UC526790  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  HSC9732  Elymus mollis subsp. mollis D. M. Thompson 1965-5-3 47 Humboldt 1/4 mile S of Fern Canyon, Gold Bluff Beach. Comment
  HSC73480  Elymus multisetus Gail Newton 1980-7-11 1327 Humboldt Near Red Mtn. 1341 Comment
  UC1103295  Elytrigia repens Joseph P. Tracy 1925-9-13 7267 Humboldt Eel River North Coast Ranges (mouth, on river bank) 6 Comment
  RSA668413  Epilobium angustifolium var. macrophyllum Thomas W Stark 1967-7-18 79 Humboldt West side of U.S. Rt. 101, 1 miles south of town of McKinleyville 61 Comment
  JEPS43904  Epilobium brachycarpum W. L. Jepson 1936-8-8 17861 Humboldt Richardson Grove South Fork Eel River Comment
  CDA18995  Epilobium canum subsp. latifolium P. Haggard 2000-9-18 PDR P 071016 Humboldt Along U.S.F.S Rd. 1, in the vicinity of Blue Lake. 0 Comment
  SBBG60140  Epilobium canum subsp. latifolium L. Rowntree 1931-7-21 Humboldt Mattole River 2 mi from Petrolia Comment
  UC1197003  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1920-8-15 5388 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC146135  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1909-7-31 3053 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC726596  Epilobium ciliatum subsp. watsonii A. A. Heller 1923-7-9 13785 Humboldt between Eureka and Fortuna Comment
  HSC99090  Epilobium densiflorum Cara Witte 2008-7-10 860 Humboldt National Forest Road 4N06. 1 mile west of National Forest 1. 1234 Comment
  UC1197008  Epilobium hallianum Joseph P. Tracy 1935-7-27 14300 Humboldt McKay Prairie Trinity Summit 1584 Comment
  BLMAR138  Epilobium minutum Donald Hazlett 1994-6-7 138 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC73548  Epilobium minutum Gail Newton 1980-7-14 1473 Humboldt Near Last Chance Ridge 1219 Comment
  JEPS31490  Epilobium oregonense Joseph P. Tracy 1935-7-26 14260 Humboldt Water Dog Lakes Trinity Summit (meadows) 1828 Comment
  CAS-BOT-BC171849  Epilobium septentrionale Doris K. Kildale 1929-8-4 8778 Humboldt Mattole River at Union Mattole Comment
  UC725499  Epipactis gigantea A. A. Heller 1923-7-10 13790 Humboldt river between Scotia and Pepperwood; Eel River Comment
  CAS-BOT-BC57104  Equisetum X ferrissii Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  JEPS60147  Equisetum arvense W. L. Jepson 1932-7-24 16378 Humboldt near Camp Grant (bank of main Eel River); Eel River 91 Comment
  CAS-BOT-BC57795  Equisetum telmateia Doris K. Kildale 1928-2-19 4274 Humboldt Metropolitan. Comment
  CAS-BOT-BC284096  Eragrostis pectinacea var. pectinacea Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC291161  Erechtites L. R. Abrams 1927-8-31 12052 Humboldt Arcata to Eureka - along highway Comment
  HSC91918  Erechtites minimus E. Mackey 1986-7-21 Humboldt Patricks Point State Park, near Wedding Rock Comment
  HSC5496  Erechtites minimus Paul Shields Aug 1955 Humboldt 5 mi. W of Weott Comment
  UC1198997  Eremocarpus setiger Joseph P. Tracy 1948-9-20 18219 Humboldt Hoopa Valley 121 Comment
  CAS-BOT-BC174278  Eremogone congesta var. suffrutescens Doris K. Kildale 1925-8-17 1243 Humboldt Waterdog Lake - Trinity Summit 1828 Comment
  RSA639200  Erica lusitanica Gary D. Wallace 1988-4-11 2806 Humboldt South of Eureka: Just north of Loleta on Hwy 101, just south of Loleta Drive. 60 Comment
  UC169294  Erigeron annuus Joseph P. Tracy 1912-7-4 3724 Humboldt near Hydesville (in orchard); Northern Coast Region 60 Comment
  CAS-BOT-BC296113  Erigeron foliosus var. confinis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC895847  Erigeron foliosus var. mendocinus L. R. Abrams 1916-7-11 6055 Humboldt at mouth of Grizzly Creek (on Van Duzen River); Van Duzen River, Grizzly Creek Comment
  CAS-BOT-BC300676  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road, near the summit of ridge 762 Comment
  CAS-BOT-BC300678  Erigeron foliosus var. mendocinus Doris K. Kildale 1928-7-23 5694 Humboldt Bridgeville Comment
  HSC5523  Erigeron glaucus J. R. Kahl 1962-5-13 34 Humboldt 2 mi. S of Trinidad along old Hwy. 101, 50 yds. from ocean Comment
  HSC31557  Erigeron glaucus Glenn McGourty 1974-4-27 32 Humboldt Along side of Mattole River Comment
  HSC58174  Erigeron klamathensis G. L. Clifton, Griswold 1979-8-2 12255 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  JEPS57404  Erigeron philadelphicus var. philadelphicus L. R. Heckard with T. I. Chuang 1968-7-4 1980 Humboldt n end Big Lagoon Comment
  RSA168812  Erigeron reductus var. reductus Joseph P. Tracy 1950-7-15 19046 Humboldt Trinity River, E side, 1 mile N of mouth of Willow Creek. Comment
  HSC81654  Erigeron robustior Thomas W. Nelson, Jane P. Nelson 1980-7-13 6056 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  HSC24402  Eriodictyon californicum J. O. Sawyer 1970-6-24 2224 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC55163  Eriogonum compositum Gilbert Muth 1979-8-1 12142 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CAS-BOT-BC248809  Eriogonum compositum var. compositum Joseph P. Tracy 1932-7-12 10460 Humboldt Trinity Summit, head of Brett Hole 1828 Comment
  CAS-BOT-BC259156  Eriogonum latifolium Ira L. Wiggins 1930-7-11 4680 Humboldt Near Samoa Comment
  CAS-BOT-BC259158  Eriogonum latifolium Milo S. Baker 1927-8-16 2453 a Humboldt Samoa Comment
  CDA22610  Eriogonum latifolium T. C. Fuller 1961-9-28 7050 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  JEPS95019  Eriogonum latifolium Vernon Oswald and Lowell Ahart 1997-9-4 8853 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  CAS-BOT-BC259164  Eriogonum latifolium Joseph P. Tracy 1938-7-15 16062 Humboldt Near bay shore at Bucksport, Eureka 6 Comment
  HSC26917  Eriogonum latifolium Brad Klipfel 1973-7-30 220 Humboldt Samoa Rd. near Mad River Slough Comment
  UC1222341  Eriogonum latifolium Joseph P. Tracy June 1950 18754 Humboldt near ocean shore (s of point of Cape; Devil's Gate); Cape Mendocino, Devil's Gate 3 Comment
  UC1222342  Eriogonum latifolium Joseph P. Tracy June 1950 18762 Humboldt near Petrolia (roadside, e slope of Domingo Hill, between town and Ocean); Domingo Hill Comment
  UC176709  Eriogonum luteolum var. luteolum Joseph P. Tracy 1912-8-3 3968 Humboldt opposite Buck Mountain; Valley of Van Duzen River 762 Comment
  UC672914  Eriogonum luteolum var. luteolum Joseph P. Tracy 1931-9-19 9684 Humboldt Alton Van Duzen River (along Van Duzen River) 30 Comment
  UC1198139  Eriogonum nudum var. nudum Joseph P. Tracy 1939-8-20 16430 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  UC54762  Eriogonum nudum var. nudum P. E. Goddard 1901-7-12 84 Humboldt Hupa Comment
  UC162628  Eriogonum nudum var. nudum Joseph P. Tracy 1911-7-4 3294 Humboldt along Willow Creek, near its mouth N. Coast Ranges, Willow Creek (Tributary of Trinity River) 243 Comment
  HSC38522  Eriogonum nudum var. oblongifolium D. E. Anderson, J. P. Smith 1971-6-18 1076 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  UC479118  Eriogonum nudum var. oblongifolium Marcus E. Jones, A. M. 1931-7-12 28806 Humboldt Alton Comment
  UC6392  Eriogonum nudum var. oblongifolium Harley P. Chandler June, 1901 1442 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  CAS-BOT-BC267473  Eriogonum umbellatum Volney Rattan 1883-6-1 s.n. Humboldt Summit bet. Mad R. & Pilot Cr. Comment
  HSC95795  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along FS Rd. 1 at S end of Whiting Ridge, 0.5 mi. WNW of High Salt Ground, 9.3 mi. W of Hyampom 1296 Comment
  HSC63845  Eriogonum umbellatum var. umbellatum M. A. Baker 1979-6-26 913 Humboldt S facing ridge Comment
  UC169040  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1912-7-26 3837 1/2 Humboldt Kneeland Prairie Northern Coast ranges, Kneeland Prairie 762 Comment
  UC165841  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1906-7-15 2539 Humboldt Table Bluff Northern Coast, Region about Humboldt Bay, Table Bluff 0 Comment
  CAS-BOT-BC301389  Eriophyllum lanatum var. grandiflorum L. R. Abrams 1918-6-16 7154 Humboldt Willow Creek Comment
  HSC74750  Eriophyllum lanatum var. grandiflorum Gail Newton 1981-7-10 2228 Humboldt Near Board Camp Butte 1494 Comment
  CAS-BOT-BC301923  Eriophyllum staechadifolium W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  UC727166  Eriophyllum staechadifolium A. A. Heller 1924-7-23 13878 Humboldt between Little River and Trinidad Comment
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Sep 29 2006
  HSC8467  Erodium botrys T. W. Beck 1963-4-27 40 Humboldt Camp Bauer, Korbel Comment
  HSC7229  Erodium cicutarium D. E. Anderson 1963-5-19 2463 Humboldt Barry Rd., 1/2 mi. W of Kneeland school Comment
  HSC8495  Erodium cicutarium R. T. Forester 1963-3-13 23 Humboldt 1/4 mi. N of Fairhaven on Samoa Rd. Comment
  SEINET12118220  Eryngium aristulatum J. P. Tracy 1912-1 3777 & 4001 Humboldt Alton 91 Comment
  CAS-BOT-BC41573  Erysimum capitatum Lincoln Constance; Reed Clark Rollins 1942-5-12 2879 Humboldt Klamath-Siskiyou Region. Klamath River 1 mile south of Bluff Creek, 5 miles northeast of Weitchpec. 121 Comment
  HSC54208  Erysimum capitatum var. capitatum Terry Griswold, Marvin Butler 1979-7-12 7251 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  SFV18510  Erysimum capitatum var. capitatum D. Waller 2002-4-13 33 Humboldt Near Horse Mountain, 3 miles up Titlow Hill Road. 915 Comment
  JEPS53543  Erysimum menziesii Joseph P. Tracy 1906-5-13 2452 Humboldt sand dunes of ocean beach Northern Coast Region, Humboldt Bay Comment
  CAS-BOT-BC383156  Erythranthe guttata David B. Lowry 2005-5-16 KLM Humboldt In Klamath River Valley, roadside Hwy. 96 between Weitchpec and Orleans 227 Comment
  SEINET13754736 Image available Erythranthe nasuta Joseph P. Tracy 1923-1 6218 Humboldt Kneeland Prairie 762 Comment
  SEINET13732744 Image available Erythranthe primuloides Joseph P. Tracy 1932-1 10534 Humboldt Trinity Summit, Corral Prarie. 1585 Comment
  SEINET3991605  Erythronium californicum Unknown 1938-6-13 15896 Humboldt Horse Mountain , in open forest of Jeffrey Pine , on red soil in serpentine belt. 1433 Comment
  UC275550  Erythronium californicum Joseph P. Tracy 1924-4-27 6639 Humboldt on hwy near Ruby Creek; Northern Coast Ranges, Willow Creek 609 Comment
  JEPS61853  Erythronium grandiflorum W. L. Jepson 1902-7-16 2039 Humboldt Trinity Summit 2133 Comment
  JEPS61873  Erythronium revolutum Joseph P. Tracy 1918-5-4 Humboldt Eureka Comment
  POM169641  Erythronium revolutum H. P. Chandler 1901-06 1279 Humboldt Hupa Indian Reservation Comment
  HSC16748  Eschscholzia californica R. T. Forester 1963-4-23 20 Humboldt 1 mi. N of Fairhaven on Samoa Rd. Comment
  HSC16760  Eschscholzia californica Jack Rockwell 1962-4-29 37 Humboldt N bank of Van Duzen River, E of Hwy. 101 9 Comment
  HSC69578  Eucalyptus globulus R. Kalal 1980-6-1 7 Humboldt City of Arcata, along F street between 12th and 13th streets. 37 Comment
  UC552243  Euchiton gymnocephalus Joseph P. Tracy 1932-8-13 10349 Humboldt Trinidad 3 Comment
  CAS-BOT-BC206913  Euonymus occidentalis C. Hart Merriam 1922-7-5 s.n. Humboldt Carson Woods, Fortuna 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
  HSC36229  Euphorbia helioscopia John Rehling 1975-5-5 57 Humboldt HSU campus Comment
  CDA28953  Euphorbia virgata T. Chapple 2009-6-1 s.n. Humboldt Vicinity of Orleans, found on Klamath River access road. 0 Comment
  UC1199327  Euthamia occidentalis Joseph P. Tracy 1939-10-7 16506 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC581767  Euthamia occidentalis Joseph P. Tracy 1931-9-7 9636 Humboldt Northern Coast Ranges, Trinity River Valley; Lack Pond, opposite mouth of Willow Creek 152 Comment
  HSC73806  Festuca arundinacea M. A. Baker 1980-6-16 1938 Humboldt Near Monks Camp. 1097 Comment
  HSC9820  Festuca arundinacea D. E. Anderson 1961-9-13 1821 Humboldt Comment
  HSC96234  Festuca californica Sara March , Gillian Levy 2005-6-3 6 Humboldt 19.3 mi S of Hwy 299 on NF1 1240 Comment
  HSC9852  Festuca californica D. C. Juve 1964-5-16 36 Humboldt Campbell Cr. Ranger Station. Hwy. 96. Hillside above Trinity River Comment
  UCD65901  Festuca californica subsp. californica Joseph P. Tracy 1938-6-13 15903 Humboldt Horse Mountain. 1432 Comment
  RSA10106  Festuca californica var. californica Joseph P. Tracy 1926-5-30 7518 Humboldt Willow Creek Canyon. 610 Comment
  HSC102208  Festuca idahoensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1123 Humboldt Andy's Camp 1564 Comment
  HSC102226  Festuca idahoensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1146 Humboldt Andy's Camp 1564 Comment
  HSC32230  Festuca idahoensis J. O. Sawyer 1970-6-24 2231 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC1103729  Festuca idahoensis Joseph P. Tracy 1926-6-6 7569 Humboldt on road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  UC180494  Festuca idahoensis Joseph P. Tracy 1913-6-20 4239 Humboldt nw slope Buck Mountain (lower foothills); Northern Coast Ranges 762 Comment
  HSC70661  Festuca occidentalis Gail Newton 1980-7-14 1544 Humboldt Near Deadman Ridge 1097 Comment
  HSC71594  Festuca occidentalis M. A. Baker 1980-6-26 2404 Humboldt Near Sims Creek 610 Comment
  UC38531  Festuca occidentalis Harley P. Chandler May 1901 1186 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UCD66138  Festuca occidentalis A. H. Murphy 1951-6-25 70 Humboldt Snow Camp meadow, ca. 8 miles e.n.e. of Kneeland. Comment
  UCSC000035  Festuca occidentalis H. S. Yates 1936-6-17 5700 Humboldt lower northwest slope of Buck Mountain 792 Comment
  CAS-BOT-BC278966  Festuca rubra W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  CAS-BOT-BC278968  Festuca rubra Joseph P. Tracy 1911-7-16 3531 Humboldt At Eureka 60 Comment
  POM126115  Festuca rubra Joseph P. Tracy 1900-7-4 894 Humboldt Ocean Beach at Humboldt Bay. Comment
  UC180345  Festuca rubra Joseph P. Tracy 1913-6-13 4097 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC187107  Festuca rubra Joseph P. Tracy 1900-7-4 890 Humboldt Humboldt Bay Northern Coast Region Comment
  UCD66353  Festuca rubra H. S. Yates 1936-6-17 5694 Humboldt Lower N. W. slope of Buck Mt. 792 Comment
  UCD66367  Festuca rubra Linda M. Barker 1976-6-22 1617 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC278621  Festuca subulata Joseph P. Tracy 1935-7-27 14295 Humboldt Trinity Summit. Open places at McKay Prairie 1584 Comment
  POM111919  Festuca subuliflora H. P. Chandler 1901-05 1179 Humboldt Humboldt Bay. 30 Comment
  UC1056065  Festuca subuliflora J. I. Mallory 1955-2-22 115 Humboldt 1 mi n Luke Prairie Quad. (Quad 29-B-2); Peavine Ridge 701 Comment
  UC38427  Festuca subuliflora J. P. Tracy May 1901 1184 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  POM275019  Fragaria chiloensis Lyman D. Benson 1928-7-10 450 Humboldt Clam Beach, Trinidad. 9 Comment
  SD39960  Fragaria chiloensis Edith A. Purer 1932-7-27 4159 Humboldt Samoa, sand dunes Comment
  HSC18611  Fragaria vesca J. C. Reppas 1963-4-11 37 Humboldt 820 Fickle Hill Rd. Comment
  JEPS44861  Fragaria vesca W. L. Jepson 1902-7-1 1973 Humboldt Redwood Creek; toward village of the Redwood Indians, Berry Ranch Comment
  CAS-BOT-BC457922  Fragaria vesca subsp. californica Doris K. Kildale 1925-12-27 1457 Humboldt Koveland Prairie 762 Comment
  HSC18394  Frangula californica P. W. Shields May 1955 Humboldt 2 mi N of Willow Creek Comment
  HSC41312  Frangula californica Brad Klipfel 1974-9-2 544 Humboldt Horse Mtn. Comment
  HSC18415  Frangula purshiana G. B. Kendall 1965-5-8 7 Humboldt 1.0 mi S of Trinidad on Hwy. 101 Comment
  HSC18417  Frangula purshiana L. J. Coombes 1964-5-18 50 Humboldt 2.5 mi E of McKinleyville on Hwy. 299 Comment
  UC1198637  Fraxinus latifolia Joseph P. Tracy 1923-6-19 6293 Humboldt Upper Mattole North Coast Ranges 152 Comment
  CAS-BOT-BC136029  Fritillaria affinis Doris K. Kildale 1928-5-19 5225 Humboldt Chalk Mountain Comment
  HSC15542  Fritillaria affinis Paul Shields May 1955 Humboldt Patricks Point State Park Comment
  POM169380  Fritillaria affinis Joseph P. Tracy 1901-4-26 1045 Humboldt Immediate vicinity of Eureka; Humboldt Hill 0 Comment
  CAS-BOT-BC130445  Fritillaria purdyi Doris K. Kildale 1926-3-21 1575 Humboldt Kneeland Prairie Comment
  UC902105  Fumaria officinalis Joseph P. Tracy 1949-4-1 18277 Humboldt Eureka; Northern Coast Ranges Comment
  JEPS6480  Galium ambiguum subsp. siskiyouense Joseph P. Tracy 1925-5-30 7026 Humboldt Laribee Valley Northern Coast Ranges 731 Comment
  HSC37854  Galium aparine Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay Comment
  HSC70322  Galium aparine M. A. Baker 1980-6-7 1873 Humboldt Near Ammon Creek 732 Comment
  HSC57675  Galium bifolium G. L. Clifton, Griswold 1979-7-25 10875 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC41599  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1977-8-6 3705 Humboldt Above Alder Springs 1555 Comment
  JEPS52830  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-8 3844 Humboldt 1.8 mi w Willow Creek town (below Boise Creek Campground) 182 Comment
  JEPS52844  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-10-27 3957 Humboldt along stream on road to Madrone Campground Redwood Highway, Richardson Grove Comment
  UC602528  Galium muricatum Joseph P. Tracy 1934-7-22 13488 Humboldt North Yager Creek 396 Comment
  UC213506  Galium parisiense Joseph P. Tracy 1920-7-11 5343 Humboldt near Arcata (around Humboldt Bay); Northern Coast Ranges, Fickle Hill 304 Comment
  HSC41598  Galium parisiense Thomas W. Nelson 1977-7-4 3610 Humboldt Alder Springs 1524 Comment
  HSC79485  Galium porrigens var. porrigens Kenneth Clark 1980-3-1 508 Humboldt Shelter Cove, middle alluvial terrace, Dead Man's Gulch 37 Comment
  HSC67840  Galium triflorum J. P. Smith 1971-10-9 5011 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  POM232037  Galium triflorum I. L. Wiggins 1930-7-22 4688 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  UC1586851  Galium triflorum Juha Pykala 1987-6-20 1857 Humboldt n house of Prof. D. H. Norris; Kneeland, Greenwood Heights 350 Comment
  CAS-BOT-BC303390  Gamochaeta ustulata Joseph P. Tracy 1936-5-30 14834 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  CHSC68553  Gamochaeta ustulata Vernon H. Oswald 1997-4-29 8358 Humboldt Coastal Dunes. Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. 0 Comment
  HSC91914  Gamochaeta ustulata E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  UC1199355  Gamochaeta ustulata J. P. Tracy 1901-6-16 1147 Humboldt immediate vicinity Eureka 0 Comment
  HSC89610  Gamochaeta ustulata M. Roantree 1985-5-2 28 Humboldt SW side of Trinidad Head Comment
  HSC72801  Garrya buxifolia Gail Newton 1980-6-17 212 Humboldt Near Onion Mtn. 1341 Comment
  CAS-BOT-BC188544  Garrya elliptica L. R. Abrams 1916-7-18 6137 Humboldt Trinidad Comment
  POM160821  Garrya elliptica Joseph P. Tracy 1925-8-14 7231 Humboldt Near Samoa, on Humboldt Bay. 6 Comment
  UC668300  Garrya fremontii Joseph P. Tracy 1935-7-14 14062 Humboldt Horse Mountain 1432 Comment
  UCSB72518  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  UC185004  Gastridium ventricosum Joseph P. Tracy 1912-7-26 3824 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC58906  Gaultheria shallon Carl B. Wolf 1930-10-30 1043 Humboldt Old Coast Road, 4 miles south of Thorn 304 Comment
  CAS-BOT-BC58918  Gaultheria shallon Doris K. Kildale 1928-5-19 5200 Humboldt Chalk Mountain Comment
  HSC100472  Gaultheria shallon Carl C. Marshall Mar 1886 143 Humboldt Everywhere. Comment
  HSC22529  Gaultheria shallon Jerry Parker 1968-10-26 197 Humboldt Big Lagoon County Park Comment
  HSC31342  Gaultheria shallon Larry E. DeBuhr, G. D. Wallace 1972-5-22 607 Humboldt 25 mi. N of Arcata at the S end of Big Lagoon Comment
  HSC69579  Gaultheria shallon R. Kalal 1980-6-1 6 Humboldt S side Essex Pond 18 Comment
  HSC7806  Gaultheria shallon A. E. Inman 1962-5-25 Humboldt Mad River, Lindsay Creek jct., N bank Comment
  HSC93253  Gaultheria shallon Gordon Leppig 1998-3-25 726 Humboldt Big Lagoon County Park, bank just E of bog 8 Comment
  RSA467223  Gaultheria shallon T. Gertrude Williamson 1924-7-11 s.n. Humboldt Arcata. Comment
  RSA467228  Gaultheria shallon Anstruther Davidson 1927-08 s.n. Humboldt No location noted. Comment
  SBBG5540  Gaultheria shallon M. J. Cody 1938-7-14 Humboldt Trinidad Head Comment
  UC32704  Gaultheria shallon Chesnut and Drew 1888-7-8 Humboldt near Arcata Comment
  HSC102923  Gayophytum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1116 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  HSC55048  Gayophytum diffusum subsp. parviflorum Gilbert Muth 1979-7-31 11551 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  POM247153  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13046 Humboldt North Coast Ranges: Grouse Mountain 1524 Comment
  UC549766  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1932-7-11 10400 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  CDA4089  Genista monspessulana T. C. Fuller 1958-6-17 570 -58 Humboldt Lower Mattole. 0 Comment
  UCD105709  Genista monspessulana Collector unknown Date unknown s.n. Humboldt location unknown. Comment
  UC444818  Gentiana affinis var. ovata Charlotte M. Wilder 1912-9-15 Humboldt n Capetown (road banks); Seven Mile Hill Comment
  OBI14114  Gentiana sceptrum Carl B. Wolf 1937-9-12 9328 Humboldt Big Lagoon, S side along Redwood hwy 6 Comment
  UC1541480  Gentiana sceptrum H. E. and S. T. Parks 1930-9-14 774 Humboldt Big Lagoon Comment
  UC162717  Gentiana sceptrum Joseph P. Tracy 1911-8-27 3535 Humboldt Eureka Northern Coast Region 0 Comment
  UC165808  Geranium core-core Joseph P. Tracy 1909-6-13 2990 Humboldt Blue Lake Northern Coast Ranges 30 Comment
  CDA42400  Geranium lucidum R. Robison 2014-5-5 s.n. Humboldt In Humboldt Lagoons State Park, along Highway 101 on southbound side. Across from old state highway 102. 0 Comment
  HSC99248  Geranium molle T. Beck 1963-4-27 42 Humboldt Camp Bauer, Korbel Comment
  BLMAR590  Gilia capitata subsp. capitata Jennifer Wheeler 2010-7-13 590 Humboldt King range, along Panther Gap Road 792 Comment
  HSC35705  Gilia capitata subsp. capitata Thomas W. Nelson, B. Reinhardt 1975-7-30 2121 Humboldt Beside private road to Pilot Rock Comment
  CAS-BOT-BC226156  Gilia capitata subsp. pacifica Doris K. Kildale 1927-5-15 3168 Humboldt Back of Cape Mendocino Comment
  HSC36617  Gilia capitata subsp. pacifica J. D. Ackerman 1974-5-25 266 Humboldt 0.25 mi. S of Lufenholtz Beach between Moonstone and Trinidad 6 Comment
  RSA23650  Gilia capitata subsp. pacifica C. B. Wolf 1939-7-8 9519 Humboldt Devil's Gate, south of Cape Mendocino. 8 Comment
  HSC104328  Gilia capitata subsp. pacifica James Regan, Humboldt Redwood Co., LLC 2010-6-23 24 Humboldt Monument Ridge, near Brushy Creek 915 Comment
  CAS-BOT-BC225472  Gilia millefoliata Harley P. Chandler 1901-5-1 1135 Humboldt Humboldt Bay 3 Comment
  HSC34612  Gilia millefoliata A. Montalvo 1975-5-24 274 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  JEPS16254 Image available Gilia millefoliata J. P. Tracy 1903-6-12 1921 Humboldt immediate vicinity Eureka; ; Eureka, Humboldt Co. 0 Comment
  UC1051593  Gilia millefoliata Joseph P. Tracy 1948-6-12 18067 Humboldt sand dunes near Samoa (on Humboldt Bay); , near Samoa 6 Comment
  HSC44404  Githopsis specularioides R. York 1978-5-6 156 Humboldt 4 mi. W of Hwy. 96, on Bluff Creek Rd. 610 Comment
  JEPS37562  Glebionis segetum Lincoln Constance 1934-6-25 927 Humboldt e side of road at Englewood (across the road from Collins' Englewood Campground); Bull Creek Region, South Fork Eel River Comment
  UC1223069  Glebionis segetum Joseph P. Tracy 1950-6-17 18831 Humboldt at Eureka Comment
  HSC21497  Glehnia littoralis subsp. leiocarpa S. J. Hawks 1965-5-14 62 Humboldt Clam Beach Comment
  HSC90248  Glehnia littoralis subsp. leiocarpa Jean Hanson 1980-5-24 63 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  RSA246749  Glehnia littoralis subsp. leiocarpa R. F. Thorne, P. Everett 1965-8-9 35304 Humboldt Big Lagoon 3 Comment
  HSC26157  Glyceria elata J. P. Smith, Steve Selva 1970-6-30 4131 Humboldt Comment
Read comments
Jan 25 2012
  HSC38427  Glyceria elata D. E. Anderson, J. P. Smith 1971-6-14 - 1049 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  UCD85137  Glyceria elata Francia Chisaki; Helen K. Sharsmith 1959-8-22 4756 Humboldt Inner North Coast Ranges. In bog at Happy Camp adjacent to Douglas Fir forest. Just over Trinity County line. 914 Comment
  HSC70482  Glyceria striata Gail Newton 1980-7-20 1636 Humboldt Near Bell Swamps 1426 Comment
  RSA151817  Glyceria striata H. K. Sharsmith, Francia Chisaki 1959-8-22 4756 Humboldt At Happy Camp. Just over Trinity County line. 915 Comment
  HSC100452  Gnaphalium Carl C. Marshall Sep 1886 346 Humboldt North Fork. Comment
  CAS-BOT-BC302532  Gnaphalium palustre E. C. Johnston 1931-8-1 s.n. Humboldt Klamath River to Arcata Comment
  POM257415  Gnaphalium palustre H. E. Parks, S. T. Parks 1937-1 24026 Humboldt Spruce Cove, Trinidad. Comment
  SEINET7010139  Gnaphalium purpureum Wanda P. Vestal, A. G. Vestal 1937-6-20 s.n. Humboldt Near the coast, about 4 miles north of Petrolia. Comment
  HSC34504  Goodyera oblongifolia J. D. Ackerman 1975-5-3 441 Humboldt Hwy. 299, 200 yds. E of Lord Ellis Summit Comment
  UC14960  Goodyera oblongifolia Harley P. Chandler June, 1901 1397 A Humboldt North Coast Ranges, Hupa Indian Reservation Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  JEPS4221  Gratiola ebracteata J. P. Tracy 1908-6-7 2618 Humboldt Butler Valley , Butler Valley (Mad River) 152 Comment
  CAS-BOT-BC304759  Grindelia hirsutula Roxana S. Ferris 1937-8-21 9388 Humboldt Shelter Cove Comment
  HSC49096  Grindelia hirsutula Patricia Shesgreen 1978-7-30 119 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  JEPS94281  Grindelia hirsutula Vernon Oswald and Lowell Ahart 1997-9-4 8845 Humboldt Big Lagoon County Park at the sw edge of Big Lagoon Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  RSA125369  Grindelia hirsutula Peter H. Raven, Richard Snow 1958-7-21 13659 Humboldt Cape Mendocino Comment
  UC419067  Grindelia hirsutula H. E. and S. T. Parks 1930-9-14 773 Humboldt n shore Big Lagoon Comment
  UC520410  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-9 3686 Humboldt Eureka; salt meadows along canal Comment
  UC722051  Grindelia hirsutula C. L. Hitchcock and J. S. Martin 1939-7-14 5437 Humboldt bluffs facing sea at Shelter Cove Comment
  POM161906  Grindelia stricta var. stricta Joseph P. Tracy 1921-7-10 5856 Humboldt Big Lagoon. 6 Comment
  JEPS79900  Hackelia micrantha Joseph P. Tracy 1932-7-11 10421 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  RSA167277  Hainardia cylindrica Joseph P. Tracy 1938-7-15 16071 Humboldt Mouth of Eel River. 3 Comment
  HSC52152  Helenium bigelovii Griswold, Butler 1979-7-11 7007 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC57978  Helenium bigelovii G. L. Clifton, Griswold 1979-7-31 11702 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC306616  Helenium bigelovii Doris K. Kildale 1925-7-26 1057 Humboldt Christmas Prairie - Bald Mt. Comment
  CAS-BOT-BC306618  Helenium bigelovii Henry M. Pollard 1947-8-31 s.n. Humboldt Klamath River bar nr. Woodson's placer mine, Orleans region Comment
  JEPS35522  Helenium puberulum W. L. Jepson 1921-9-10 9458 Humboldt flat at Philipsville Comment
  HSC6064  Helminthotheca echioides Wm. F. Bowman 1968-11-9 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  SEINET4170660 Image available Hemicarpha aristulata Unknown 1931-9-7 9650 B Humboldt Trinity river Valley, at Willow Creek 152 Comment
  HSC70956  Hemizonella minima Thomas W. Nelson 1977-6-15 3431 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  CAS-BOT-BC309995  Hemizonia congesta subsp. tracyi Carl B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  CAS-BOT-BC309997  Hemizonia congesta subsp. tracyi L. R. Abrams 1916-7-11 6030 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  RSA259569  Hemizonia tracyi Thomas W. Nelson, Jane, James Nelson 1975-6-21 1950 Humboldt Hwy 36, 5 miles east of Bridgeville Comment
Read comments
Jan 3 2011
  UC1223121  Hesperevax acaulis var. robustior Joseph P. Tracy 1949-6-12 18312 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley 152 Comment
  UC1223122  Hesperevax acaulis var. robustior Joseph P. Tracy 1949-6-12 18312 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley 152 Comment
  UC1199419 Image available Hesperevax sparsiflora var. brevifolia Joseph P. Tracy 1932-5-16 10107 Humboldt near Samoa; Humboldt Bay 6 Comment
  POM208987  Heterocodon rariflorum Lincoln Constance 1934-6-19 915 Humboldt E slope of Grasshopper Peak, Bull Creek watershed, Humboldt Redwood Park. 762 Comment
  UC154509  Heteromeles arbutifolia P. E. Goddard 1901-7-9 48 Humboldt Hupa Comment
  RSA0075926  Heterotheca oregona S. K. Harris 1938-8-24 881 Humboldt Sand of Eel River, near Fernbridge. Comment
  UC202750  Heterotheca oregona var. rudis Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  HSC102136  Heuchera merriamii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1040 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1222391  Heuchera merriamii Joseph P. Tracy July 1935 14172 Humboldt summit near Rangers Lookout at head of Croghan Hole; Trinity Summit 1828 Comment
  UC56719  Heuchera micrantha var. diversifolia Harley P. Chandler May, 1901 1231 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  UC582416  Hieracium albiflorum Joseph P. Tracy 1929-7-4 8613 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC312392  Hieracium albiflorum Doris K. Kildale 1925-8-17 1196 Humboldt Triity Summit 1828 Comment
  UC1199466  Hieracium nudicaule Joseph P. Tracy 1929-7-4 8633 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC316005  Hieracium nudicaule Joseph P. Tracy 1937-8-7 15620 Humboldt Bald Mt. 914 Comment
  HSC6597  Hirschfeldia incana Jerry Parker 1968-11-11 233 Humboldt S of Vista Point Comment
  HSC10130  Holcus lanatus R. V. Papike 1962-5-5 34 Humboldt On top of Fickle Hill, 2 miles W of Arcata. Comment
  HSC39956  Holcus lanatus Linda M. Barker 1976-6-22 1614 Humboldt 3 mi. W of Arcata Comment
  HSC47786  Holcus lanatus Michael A. Watkins 1978-6-10 7 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  RSA246896  Holcus lanatus R. F. Thorne, P. Everett 1965-8-8 35267 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  SD51261  Holcus lanatus D. F. Howe 1961-8-1 Humboldt 9 miles north of Arcata on #101 Comment
  SEINET200832 Image available Holcus lanatus J. P. Tracy 1901-7-24 1218 Humboldt Immediate vicinity of Eureka 0 Comment
  UC34072  Holcus lanatus J. P. Tracy 1901-7-24 1218 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC43843  Holodiscus discolor Maralyn O'Meara 1974-5-18 497 Humboldt Fisher Rd. near Carlotta 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
  UC666850  Holodiscus discolor Joseph P. Tracy 1933-8-30 13031 Humboldt Grouse mountain 1524 Comment
  UC1103488  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1942-6-15 17126 Humboldt near Redcrest resort; Englewood 91 Comment
  UC1132100  Hordeum brachyantherum subsp. brachyantherum H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quad. Comment
  UC38668  Hordeum brachyantherum subsp. brachyantherum Schmidt Humboldt Humboldt Bay Comment
  UC1103483  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1936-6-9 14913 Humboldt on the road from Bull Creek to Upper Mattole; Windy Nip Garp 609 Comment
  CHSC96732  Hordeum murinum subsp. glaucum Gordon Leppig 1999-4-28 1127 Humboldt Arcata Bottoms. North of Lamphere Rd. UTM zone 10, 4529N, 406E. 1 Comment
  UC526706  Hordeum murinum subsp. leporinum Joseph P. Tracy 1925-5-17 6978 Humboldt Willow Creek Northern Coast Ranges, , Willow Creek (Trinity River Valley) 152 Comment
  UC183616  Horkelia californica Joseph P. Tracy 1912-7-22 3791 Humboldt Northern Coast Ranges, Table Bluff 91 Comment
  UC183550  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1913-6-17 4163 Humboldt near summit (Buck Mountain); Northern Coast Ranges 1524 Comment
  JEPS102925  Horkelia tridentata subsp. flavescens Thomas W. Nelson and Jane P. Nelson 1987-6-11 8553 Humboldt Along FS Rd 13N01 .25 mi S of turnoff to Onion Lake Comment
  HSC98277  Hosackia crassifolia D. E. Anderson 1961-9-30 1848 Humboldt Divide Lake. 915 Comment
  UCSB13143  Hosackia crassifolia Breedlove, Dennis 1961-7-4 Humboldt 2.5 mi. E of the Mad River bridge on U.S. 299 426 Comment
  HSC62746  Hydrocotyle ranunculoides J. M. DiTomaso 1979-5-29 1078 Humboldt Arcata Bottoms, 1.7 mi. W of Alliance Rd. on Lanphere Rd. Comment
  UC1239762  Hydrophyllum occidentale Joseph P. Tracy 1908-6 2633 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC659488  Hydrophyllum occidentale Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2618 Humboldt near Eureka (lower slopes of Buck Mountain); Buck Mountain 792 Comment
  JEPS1636  Hydrophyllum tenuipes Joseph P. Tracy 1925-6-1 6690 Humboldt Lawrence Creek Northern Coast Ranges (at crossing of the Kneeland Road) 457 Comment
  POM229372  Hydrophyllum tenuipes Lincoln Constance, A. A. Beetle 1940-5-16 2611 Humboldt Valley of Van Duzen River, 5 miles east of Carlotta. 30 Comment
  UC1239761  Hydrophyllum tenuipes Joseph P. Tracy 1933-6-11 12558 Humboldt Holmes Flat 60 Comment
  HSC58018  Hypericum anagalloides G. L. Clifton 1979-7-31 11820 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC175706  Hypericum anagalloides Joseph P. Tracy 1912-7-14 3747 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC1222165  Hypericum concinnum Joseph P. Tracy 1950-5-24 18688 Humboldt where Knight's Valley enters Alexander Valley (and leaves Muyacama Creek) Comment
  UC668260  Hypericum formosum var. scouleri Joseph P. Tracy 1935-7-21 14112 Humboldt opposite mouth of Willow Creek (Lack Pond); Trinity R. Valley, Lack Pond 152 Comment
  UC1193380  Hypericum perforatum R. H. Neuns 1950-6-12 121 Humboldt on Eel R. between Alder Point and Fort Seward; Quad. 29D2, Eel R. 152 Comment
  HSC13845  Hypericum perforatum J. R. Lippincott 1967-7-16 6 Humboldt Near N Fork Mad River bridge 152 Comment
  POM285808  Hypericum perforatum Lyman Benson 1928-7-14 522 Humboldt Spring 10 miles N of Mendocino Line, Redwood highway. 457 Comment
  HSC100439  Hypochaeris glabra Carl C. Marshall May 1885 44 Humboldt Roadsides, etc. Comment
  HSC103990  Hypochaeris glabra M. F. Norman 2015-4-11 4 Humboldt Arcata, Ma-le'l Dunes Comment
  SEINET11855591  Hypochaeris glabra J. P. Tracy 1948-5-31 18020 Humboldt William Perry place, Dobbyn Creek 152 Comment
  UC1069674  Hypochaeris radicata H. L. Person 1931-7-30 L.H. 25 Humboldt Fieldbrook Eureka Quad. Comment
  UCSB6709  Hypochaeris radicata Keator, Glenn 1958-6-18 Humboldt In the vicinity of Smith River (the town) Comment
  HSC35707  Iliamna latibracteata Thomas W. Nelson, B. Reinhardt 1975-7-30 2091 Humboldt Grouse Creek side of Last Chance Ridge. Comment
  RSA137356  Iris douglasiana Lee W. Lenz, E. K. Balls 1956-6-12 21666 Humboldt Between Willow Creek and Blue Lake, U.S. Highway 299 366 Comment
  UCD138708  Iris douglasiana L. W. Lenz; E. K. Balls 1956-6-12 21666 Humboldt Between Willow Creek and Blue Lake, U.S. Hwy 299. 365 Comment
  RSA21085  Iris macrosiphon Carl B. Wolf 1937-6-19 8913 Humboldt North Coast Range, 7.2 mi. above Bridgeville on grade to Dinsmores. 457 Comment
  HSC64219  Iris tenuissima J. O. Sawyer, M. A. Ericksen 1979-6-23 3382 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC98886  Iris tenuissima subsp. tenuissima Cara Witte 2008-6-4 677 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  UC667940  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp 1402 Comment
  HSC83042  Isolepis cernua A. L. Eicher 1985-8-17 Humboldt Coastal salt marsh bordering Humboldt Bay, 0.3 mi. S of junction of Samoa Blvd. and Vance Ave. 1 Comment
  CAS-BOT-BC340154  Jaumea carnosa C. C. Harris; S. K. Harris 1939-8-26 s.n. Humboldt South shore of Humboldt Bay Comment
  CAS-BOT-BC109924  Juncus Doris Kildale 1931-5-10 10675 Humboldt Snow Camp. Comment
  CHSC31324  Juncus balticus subsp. ater Mark Stopher 1980-6-4 92 Humboldt Near Hwy 101 bridge over Elk River, s of Eureka. 1 Comment
  UC249540  Juncus balticus subsp. ater Joseph P. Tracy 1921-7-10 5855 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC303152  Juncus balticus subsp. ater Joseph P. Tracy 1925-8-2 7221 Humboldt Big Lagoon Northern Coast Region 6 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
  UC184214  Juncus bolanderi Joseph P. Tracy 1900-9-3 940 Humboldt Eureka Northern Coast Region 0 Comment
  UC2494  Juncus bolanderi H. N. Bolander June 1867 6584 Humboldt near Elk Ridge Comment
Read comments
Jul 31 2010
  RSA129413  Juncus breweri H. S. Yates 1936-6-16 5655 Humboldt 1/2 mile southwest of Samoa. 3 Comment
  JEPS66922  Juncus bufonius Lincoln Constance 1934-6-12 862 Humboldt Dyerville, Bull Cr. road and n bank of South Fork Eel River South Fork Eel River, Bull Creek Region Comment
  JEPS66996  Juncus effusus subsp. pacificus W. L. Jepson 1936-8-17 17908 Humboldt 2 mi s Fields's Landing (near Still's Ranch) Comment
  HSC99805  Juncus effusus subsp. pacificus Thomas W. Nelson 1975-9-24 2202 Humboldt Beside Indianola Rd., 0.5 mi. E of junction with Hwy. 101 Comment
  JEPS66986  Juncus ensifolius Joseph P. Tracy 1918-7-5 5027 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  UC1152095  Juncus ensifolius Joseph P. Tracy 1937-7-25 15563 Humboldt 6 mi ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC40877  Juncus hesperius Linda M. Barker 1976-6-1 1568 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1152104  Juncus hesperius Joseph P. Tracy 1938-6-15 15938 Humboldt 2 mi e Carlotta 30 Comment
  CHSC103507  Juncus xiphioides Peter F. Zika 2009-6-16 24501 Humboldt Outer North Coast Ranges. West shore of Trinity River, near boat ramp, N end of town of Willow Creek. 120 Comment
  RSA42044  Juncus xiphioides H. C. Cantelow 1936-8-28 1641 Humboldt 4 miles W of Dinsmore Ranch. Comment
  CAS-BOT-BC235890  Keckiella corymbosa Carl D. Duncan 1920-9-21 333 Humboldt Hoopa Comment
  UC585629  Keckiella corymbosa Joseph P. Tracy 1937-7-11 15422 Humboldt vicinity Garberville 121 Comment
  UC1222465  Keckiella lemmonii Joseph P. Tracy 1939-8-16 16425 Humboldt near Grouse Mountain; Friday Ridge 1219 Comment
  CHSC79872  Kniphofia uvaria Gordon Leppig; Sylvia Leppig 2000-4-9 1287 Humboldt Arcata Marsh and Wildlife Refuge, South east corner of Klopp Lake dike, UTM zone 10, 4524N, 407E. 0 Comment
  CDA3134  Kochia iranica J. F. Hart 1958-12-1 1618 Humboldt 0 Comment
  RSA10089  Koeleria macrantha Joseph P. Tracy 1925-7-5 7163 Humboldt High Prairie, on Bald Mountain. 1067 Comment
  UC1152009  Koeleria macrantha Joseph P. Tracy 1951-6-24 19541 Humboldt between serpentine rockpile and Ashfield Butte Kneeland Prairie; , btw rockpile and Ashfield Butte 762 Comment
  UC1196124  Kopsiopsis strobilacea Joseph P. Tracy 1935-7-28 14323 Humboldt Trinity Summit. Head of Devil's Hole. 1828 Comment
  UC403009  Kopsiopsis strobilacea Joseph P. Tracy 1916-6-25 4739 Humboldt Ridge between Little River and Redwood Creek. 457 Comment
  UC1051588  Lactuca saligna Joseph P. Tracy 1946-8-25 17649 Humboldt Alton, Fortuna 15 Comment
  CAS-BOT-BC341441  Lagophylla ramosissima Henry M. Pollard 1945-8-27 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  HSC14214  Lamium purpureum S. J. Roberts 1965-4-10 26 Humboldt Dike of old Mad River channel Comment
  UC302193  Lapsana communis Joseph P. Tracy 1926-6-6 7553 Humboldt Bair's on Redwood Creek Northern Coast Ranges, Redwood Creek 304 Comment
  UC1103808  Lasthenia glaberrima Joseph P. Tracy 1921-6-12 5826 Humboldt Butler Valley Northern Coast Ranges, Butler Valley 152 Comment
  UC195066  Lasthenia glaberrima Joseph P. Tracy 1916-6-19 4720 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 182 Comment
  CAS-BOT-BC352930  Lasthenia glaberrima S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3439 Humboldt Northwest slopes of Buck Mountain. 822 Comment
  HSC5900  Lasthenia glaberrima H. E. Parks, J. P. Tracy 1935-6-16 11274 Humboldt Buck Mt., lower NW slopes 793 Comment
  UC1222400  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1946-5-4 17523 Humboldt w side near sw corner Hoopa Valley Comment
  HSC14744  Lathyrus littoralis J. W. Johnson 1962-5-6 1326 Humboldt W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC47485  Lathyrus littoralis Sheila Logan 1978-4-7 3 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  RSA183499  Lathyrus littoralis J. R. Woodside 1963-4-3 31 Humboldt One and one fourth miles north of Fairhaven. Comment
  RSA520696  Lathyrus littoralis Glenn A. Gorelick 1967-6-4 s.n. Humboldt Samoa Beach, near Eureka. Comment
  UCD106378  Lathyrus littoralis Linda M. Barker 1976-6-1 1560 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCR122373  Lathyrus littoralis George K. Helmkamp, E. A. Helmkamp 2001-7-8 7014 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC79370  Lathyrus palustris Kenneth Clark 1980-3-27 560 Humboldt S of Dead man's Gulch 0 Comment
  SEINET956148  Lathyrus polyphyllus Joseph P. Tracy 1923-1 6344 Humboldt Bald Mt. 914 Comment
  UC303183  Lathyrus polyphyllus Joseph P. Tracy 1923-6-22 6344 Humboldt Bald Mt. Northern Coast Ranges 914 Comment
  JEPS55297  Lathyrus torreyi Milo S. Baker 1923-7-20 57 Humboldt road to Yager from Redwood House 609 Comment
  SEINET12158645  Lathyrus vestitus subsp. bolanderi J. P. Tracy 1949-1 18327 Humboldt on the Butter Valley Rd, 2miE of Kneeland 610 Comment
  RSA405757  Lathyrus vestitus subsp. vestitus Charlotte M. Hoak 1931-7-15 14014 Humboldt Big Lagoon Comment
  HSC64184  Lathyrus vestitus var. ochropetalus J. O. Sawyer, M. A. Ericksen 1979-6-23 3391 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC39786  Layia carnosa Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  UC34740  Layia carnosa W. C. Blasdale 1896-6-2 Humboldt Comment
  RSA249507  Ledum glandulosum subsp. columbianum R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35295 Humboldt Big Lagoon. 3 Comment
  CDA25774  Lemna trisulca David Juliano 2008-9-25 s.n. Humboldt Miranda, 400 Catbey Ranch Rd. 0 Comment
  SEINET3245528  Leontodon saxatilis R. Spellenberg, N. Zucker 2011-1 14301 Humboldt Miranda, on the W side of highway in center of town. 110 Comment
  CAS-BOT-BC339129  Leontodon saxatilis subsp. saxatilis H. S. Reed 1941-7-26 s.n. Humboldt Near Trinidad Comment
  CHSC33097  Leontodon saxatilis subsp. saxatilis J. P. Smith 1971-10-6 4966 Humboldt Dunes at the end of Murray Road in McKinleyville. Comment
  UC175386  Leontodon saxatilis subsp. saxatilis J. P. Tracy 1909-7-4 3008 Humboldt immediate vicinity Eureka 0 Comment
  UC1225756  Lepidium latipes Joseph P. Tracy 1948-5-31 17991 Humboldt Harris 762 Comment
  UC1199166  Lepidium strictum Joseph P. Tracy 1948-5-31 18011 Humboldt Alder Point 304 Comment
  UC161491  Lepidium strictum Joseph P. Tracy 1911-7-1 3276 Humboldt near Hydesville (at Carlotta); Northern Coast Region, Carlotta 60 Comment
  HSC45590  Leptosiphon androsaceus Diane L. Reed 1978-5-27 126 Humboldt Horse Mtn., on Titlow Hill Rd. 1.5 mi. from junction with Hwy. 299 Comment
  HSC74229  Leptosiphon ciliatus M. A. Baker 1980-7-15 2958 Humboldt Near Whiting Ridge. 1341 Comment
  UC1199333  Lessingia nemaclada Joseph P. Tracy 1939-8-5 16374 Humboldt gravel bar of river opposite Buck Mt.; Van Duzen River, Dinsmore's 737 Comment
  HSC5356  Leucanthemum vulgare H. E. Parks, S. T. Parks Aug 1943 24257 Humboldt Spruce Cove, Trinidad. 61 Comment
  UC581785  Leucanthemum vulgare Joseph P. Tracy 1937-6-23 15360 Humboldt along Mad River; Blue Lake Comment
  HSC5358  Leucanthemum vulgare John A. Dubois 1962-5-23 19 Humboldt 20 mi. E of Arcata. Comment
  HSC32134  Lewisia nevadensis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  RSA246914  Leymus vancouverensis R. F. Thorne, P. Everett 1965-8-9 35313 Humboldt Big Lagoon County Park 3 Comment
  SEINET7292880 Image available Leymus vancouverensis Malcolm A. Nobs, S. Galen Smith 1949-1 1204 Humboldt Humboldt Bay, ca. 2 miles north of Eureka Comment
  CAS-BOT-BC436499  Ligusticum apiifolium John Thomas Howell 1937-7-31 13714 Humboldt Boise Creek Comment
  SEINET3887487  Lilium columbianum Thomas Nelson, Jane P. Nelson; James Nelson 1975-7-15 2036 Humboldt Along old highway 101 north of Trinidad.; 0 Comment
  CAS-BOT-BC130636  Lilium kelloggii A. M. Vollmer; L. Beane 1951-6-1 148 Humboldt On road to Bald Mountain, east of Korbel Comment
  CAS-BOT-BC130638  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  CAS-BOT-BC130642  Lilium kelloggii 1942-7-9 s.n. Humboldt Alder Point Comment
  UC1035025  Lilium occidentale A. M. Vollmer and L. Beane Jul 1953 118 Humboldt Comment
  UCSB698  Lilium pardalinum Phillips, Priscilla 1958-6-7 Humboldt On Highway 101, 14.1 mi. south of Prairie Creek Redwoods State Park (north of Trinidad) Comment
  HSC54016  Lilium pardalinum subsp. pardalinum Griswold, Butler 1979-7-12 7158 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC79327  Lilium pardalinum subsp. pardalinum D. K. Imper 1982-7-15 Humboldt 1/3 mi. E of Grizzly Creek State Park on Hwy. 36, bank of Van Duzen River 1220 Comment
  UC1198231  Lilium rubescens Joseph P. Tracy 1911-7-7 3419 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow Creek and Campbell Creek, near the summit) 1219 Comment
  UC1198232  Lilium rubescens J. P. Tracy 1908-7-31 2936 Humboldt near Bridgeville 152 Comment
  HSC28137  Limnanthes douglasii J. D. Ackerman 1973-5-28 49 Humboldt Hwy. 299, Berry Summit. Comment
  HSC59466  Limnanthes douglasii M. A. Ericksen 1979-5-13 285 Humboldt Chezem Rd., 0.2 mi. from Hwy. 299 Comment
  HSC69869  Limnanthes douglasii subsp. nivea Thomas W. Nelson 1978-5-28 4098 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  UC668184  Limnanthes douglasii subsp. nivea Joseph P. Tracy 1937-6-20 15346 Humboldt ten mi up stream from mouth; Bear River 152 Comment
  HSC63016  Limnanthes douglasii subsp. nivea David Wheeler 1979-5-23 136 Humboldt About 1/2 mi. towards Bridgeville from the Jct. at High Prairie. Comment
  HSC22528  Limonium californicum Jerry Parker 1968-11-9 228 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata. Comment
  UC1198577  Linanthus acicularis Joseph P. Tracy 1921-4-24 5474 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  JEPS58157  Linanthus androsaceus Milo S. Baker 1923-7-20 45 Humboldt Yager Creek 609 Comment
  JEPS58273  Linanthus bolanderi Lincoln Constance 1934-6-15 890 Humboldt few yds s Lookout (on summit of ridge of Grasshopper); South Fork Eel River, Bull Creek Region, Grasshopper Comment
  UC908238  Linanthus ciliatus Joseph P. Tracy 12923 Humboldt s slope Grouse Mountain (towards Grouse Creek Basin); North Coast Ranges 1219 Comment
  UC1198538  Linanthus harknessii Harold E. Parks and Joseph P. Tracy 1934-6-27 11086 Humboldt Grouse Mt. 1432 Comment
  JEPS11331  Linaria vulgaris Joseph P. Tracy 1921-7-23 5858 Humboldt Dows Prairie, thence to Trinidad Dows Prairie Dows Prairie; Northern Coast Ranges, Dows Prairie 60 Comment
  UCSB8725  Linaria vulgaris Phillips, Priscilla 1958-6-7 Humboldt Patrick's Point; near Trinidad Comment
  HSC98065  Linnaea borealis Cara Witte 2007-7-12 523 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  CAS-BOT-BC416392  Linnaea borealis subsp. longiflora H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  UC602524  Linnaea borealis var. longiflora Joseph P. Tracy 1937-7-24 15534 Humboldt head of Little Hors-Linto Creek Trinity Summit; , head of Little Hors-Linto Creek 1371 Comment
  HSC46136  Linum bienne J. P. Smith 1971-10-6 4964 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC12547  Linum bienne C. Kline 1970-10-26 42 Humboldt End of School Rd., Mckinleyville, bluffs above Mad River. Comment
  HSC15824  Linum bienne T. M. Mingo May 1965 Humboldt E of parking area at College cove. Comment
  SD42239  Linum lewisii Carl B. Wolf 1937-6-18 8889 Humboldt Table Bluff, between Humboldt Bay and Eel River. 29 Comment
  HSC49390  Listera cordata var. nephrophylla R. York 1979-4-21 245 Humboldt Behind the town of Korbel, Camp Bauer Comment
  SEINET12034162  Lithocarpus densiflorus J. P. Tracy 1950-1 19253 Humboldt Grasshopper Peak (in Bull Creek State Park at head of Canoe Creek) Comment
  CAS-BOT-BC36101  Lithocarpus densiflorus var. densiflorus L. B. Kildale 1930-8-10 10536 Humboldt Snow Camp, head of Redwood Creek Comment
  UC1196500  Lithophragma Harold E. Parks and Joseph P. Tracy 1942-5-16 11558 1/2 Humboldt vicinity Garberville 152 Comment
  HSC44409  Lithospermum californicum R. York 1978-5-6 161 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  CAS-BOT-BC283407  Lolium multiflorum H. M. Hall 1924-8-9 s.n. Humboldt Van Duzen River Valley, near Carlotta Comment
  HSC10312  Lolium perenne N. R. Waite 1965-5-19 43 Humboldt W edge of Humboldt State University campus. Comment
  UC50698  Lolium temulentum Joseph Burtt Davy 1899-6-20 5690 Humboldt Hupa Valley Comment
  HSC73721  Lomatium californicum M. A. Baker 1980-7-15 2954 Humboldt Near Whiting Ridge. 1341 Comment
  HSC65515  Lomatium ciliolatum var. ciliolatum M. A. Baker 1980-6-7 1776 Humboldt Near Brush Mtn. 1128 Comment
  UC1103401  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1924-3-9 6610 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC162334  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1911-7-6 3345 Humboldt along rd. between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC21575  Lomatium dasycarpum subsp. dasycarpum Francis Winter 1960-4-24 Humboldt 1 mi. W of Burnt Ranch 381 Comment
  HSC98968  Lomatium dissectum var. multifidum C. Witte 2007-5-22 76 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1422 Comment
  HSC56003  Lomatium macrocarpum Overton, Butler 1979-7-31 11454 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC63842  Lomatium macrocarpum M. A. Baker 1979-6-26 910 Humboldt S facing ridge Comment
  CAS-BOT-BC211198  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Brannan Mountain 1219 Comment
  HSC44441  Lomatium tracyi Barbara Kelly 1978-5-1 592 Humboldt Intersection with road sign saying Grouse Mtn. Lookout 2 mi., Horse Mtn. 15 mi. Comment
Read comments
Jan 16 2014
  HSC97218  Lomatium tracyi K. Auker, R. Battleson 2007-6-11 3 Humboldt Near Grouse Mtn., 11.9 mi. S of Hwy. 299 on F.S. Rd. NF1 1585 Comment
  UC1438145  Lomatium tracyi Barbara Kelly 1978-5-1 587 Humboldt 1/4 mi from Horse Mountain Road 1/2 mi below turnoff to summit, near end of unused gravel road Comment
  UC1438147  Lomatium tracyi Barbara Kelly 1978-5-1 591 Humboldt 1/4 mi. from Horse Mt. Rd., 1/2 mi. below turnoff to summit, near end of unused gravel rd. Comment
  UC906665  Lomatium tracyi Joseph P. Tracy 1949-7-19 18390 Humboldt Grouse Mt. 1524 Comment
  UC1347206  Lomatium utriculatum Alice Eastwood and John Thomas Howell 1937-6-23 4767 Humboldt Dinsmore's Comment
  RSA168961  Lonicera conjugialis Joseph P. Tracy 1950-8-8 19287 Humboldt Croghan Hole, on Trinity Summit 1677 Comment
  CAS-BOT-BC240479  Lonicera hispidula Carl B. Wolf 1927-8-28 1164 Humboldt Hoopa [Hupa Valley] Indian Reservation, on the Trinity River, 8 mi. from Weitchpec Comment
  UC1125245  Lonicera hispidula var. vacillans H. L. Person 1932-7-23 N.w.S 16 Humboldt road e Korbel; Eureka Quadrangle Comment
  SD88367  Lonicera involucrata Darley F. Howe 1972-5-7 Humboldt Trinidad head light station. Comment
  SBBG7364  Lonicera involucrata var. ledebourii H. and M. Dearing 1933-5-17 1854 Humboldt N of Arcata Comment
  HSC98254  Lotus corniculatus Norman H. Moe 1962-5-19 Humboldt Lanphere's Place Comment
  HSC46017  Lotus corniculatus Catherine Chin 1978-8-5 100 Humboldt Arcata, side road on Spring St., between 16th and 17th Sts. Comment
  HSC98124  Lotus corniculatus Cara Witte 2007-6-28 386 Humboldt Forest Service Road 5N10. Approximately 1/2 mile east of intersection with 5N10D. 1426 Comment
  UC162804  Lotus humistratus Joseph P. Tracy 1906-7-4 2531 Humboldt near Hydesville; Northern Coast Region, Yager Creek 60 Comment
  HSC97929  Lotus nevadensis var. douglasii Cara Witte 2007-6-14 284 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  UC15566  Lotus nevadensis var. nevadensis Harley P. Chandler 1901-6-14 1487 Humboldt Orleans to Sommes Bar; North Coast Ranges, Klamath River 426 Comment
  SEINET3694458 Image available Lotus pinnatus Joseph P. Tracy 1937-7-19 15461 Humboldt Larrabee Valley 732 Comment
  UC1223422  Lotus pinnatus Joseph P. Tracy 1937-7-3 15375 Humboldt opposite Willow Creek; Trinity River Valley Comment
  UC864751  Lotus purshianus var. purshianus Ira L. Wiggins 1930-7-22 4689 Humboldt between Blue Lake and Willow Creek (along bank of Redwood Creek); Redwood Creek Comment
  UC202015  Lotus purshianus var. purshianus Joseph P. Tracy 1918-7-28 5092 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC1223410  Lotus yollabolliensis Joseph P. Tracy 1937-7-29 15586 Humboldt near McKay Camp (near top of South Fork Mountain); South Fork Mountain 1676 Comment
  HSC58199  Luina hypoleuca Walter Overton 1979-8-2 12302 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  UC581692  Luina hypoleuca Joseph P. Tracy 1933-7-25 12900 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC201190  Lupinus Charles Piper Smith 1947-7-11 47643 Humboldt Highway 101 - McKinleyville, 1.3 miles north Comment
  JEPS85681  Lupinus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9059 Humboldt along summit near Blake lookout, South Fork Mountain (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  RSA751818  Lupinus Robert F. Thorne 1957-9-3 19015 Humboldt Little River Beach, few miles S of Trinidad. Comment
  HSC37859  Lupinus arboreus Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  LA205182  Lupinus arboreus C. B. Wolf; 1930-10-28 1780 Humboldt Samoa, Humboldt Bay 15 Comment
  UC503006  Lupinus arboreus Joseph P. Tracy 1932-5-16 10104 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, on Humboldt Bay 6 Comment
  HSC32156  Lupinus constancei D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5602 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  NY15833  Lupinus constancei T. W. Nelson 1982-7-9 7079 Humboldt Blocksburg quadrangle. Sepentine barrens on Mt. Lassic (Signal Peak) and saddle to east. 1767.8 Comment
  HSC74224  Lupinus latifolius subsp. viridifolius M. A. Baker 1980-7-19 3018 Humboldt Near Bret Hole. 1814 Comment
  UC162167  Lupinus latifolius var. latifolius Joseph P. Tracy 1909-8-1 3065 Humboldt Kneeland Prairie , Kneeland Prairie (Northern Coast Ranges) 762 Comment
  UC503013  Lupinus latifolius var. latifolius Joseph P. Tracy Jul 16 1930-Jul 19 1930 8970 Humboldt near McKay Camp South Fork Mountain (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1223259  Lupinus lepidus var. lobbii Joseph P. Tracy 1940-7-7 16672 Humboldt ridge back Clear Lake (Grouse Mountain); , ridge back of Clear Lake 1524 Comment
  UC198577  Lupinus littoralis Joseph P. Tracy 1917-5-26 4785 A Humboldt Bucksport Northern Coast Ranges, , Bucksport (Eureka) 0 Comment
  UC169346  Lupinus polyphyllus var. pallidipes Joseph P. Tracy 1912-6-9 3693 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  HSC76441  Lupinus tracyi D. K. Imper 1981-8-12 902 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  HSC59591  Lupinus variicolor Rick Lundquist 1979-4-6 2 Humboldt Arcata, SE Corner of 7th and Union St. 24 Comment
  HSC74172  Luzula comosa M. A. Baker 1980-7-23 3155 Humboldt Near Orleans Mtn. 1859 Comment
  UC1103681  Luzula comosa Joseph P. Tracy 1906-5-20 2460 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  CAS-BOT-BC436746  Luzula comosa var. comosa Harley P. Chandler 1901-5-1 1159 Humboldt North Coast Ranges: Humboldt Bay 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
  JEPS67158  Luzula macrantha Joseph P. Tracy 1926-5-2 7446 Humboldt Near Ruby Creek, Willow Creek Canyon, Northern Coast Ranges, 609 Comment
  UCR265767  Luzula macrantha Peter F. Zika 2011-7-3 25500 Humboldt Outer North Coast Ranges, Titlow Hill Road, near junction with Forest Road 6N36, 1 air mi south of Horse Mountain 1410 Comment
  CDA39249  Luzula parviflora J. Riddell 2002-4-21 47 Humboldt Prairie Creek State Park, Gold Beach roadside. Comment
  CAS-BOT-BC61931  Lycopodium clavatum H. E. Parks; W. K. Parks 1932-7-30 01132 Humboldt Camp 21 Hammon Lumber Company, Trinidad 152 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
  SEINET11770339  Lysichiton americanus F. H. Utech 1986-1 86 -416 Humboldt between Capetown & Ferndale along Mattole Creek, SW slope of Bear River Ridge 100 Comment
  HSC97613  Madia elegans Cara Witte 2007-6-4 180 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  CAS-BOT-BC342803  Madia elegans Henry M. Pollard 1947-8-21 s.n. Humboldt Ferrian Ranch, nr. Orleans Comment
  CAS-BOT-BC344358  Madia exigua David D. Keck 1944-7-11 5501 Humboldt 5 mi. W. of Briceland on road to Ettersburg Comment
  CAS-BOT-BC343021  Madia gracilis Ira L. Wiggins 1930-7-11 4679 Humboldt Near Samoa Comment
  CAS-BOT-BC94819  Madia gracilis R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-6-6 834 Humboldt Humboldt Redwoods S.P., Look Prairie, 0.5 air mi. N of Mattole Rd., and 3 air mi. W of Hwy. 101 243 Comment
  HSC40032  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1976-6-22 2880 Humboldt At Goat Hill Lookout 1666 Comment
  HSC44541  Madia gracilis Brad Klipfel 1973-7-15 160 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58706  Madia gracilis Griswold, Butler 1979-7-10 7133 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC74504  Madia gracilis Gail Newton 1980-8-10 2053 Humboldt Near Blake Mtn. 1707 Comment
  SEINET3148089  Madia gracilis J. B. Davy, W. C. Blasdale 1899-6-19 5674 -C Humboldt Hoopa Mt. Comment
  HSC35590  Madia gracilis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2001 Humboldt Along Bald Hills Rd., just W of French Camp Comment
  POM362198  Madia minima Thomas W. Nelson, Jane P. Nelson 1977-7-4 3608 Humboldt Along road north from Alder Spring 1555 Comment
  UC1052187  Madia sativa J. L. Meyer 1954-10-11 29 Humboldt 3 mi n Blocksburg; Quadrangle 29A3 457 Comment
  RSA246852  Mahonia nervosa R. F. Thorne, P. Everett 1965-8-5 35138 Humboldt Mt. Chamisal: below sumit. 534 Comment
  SBBG8899  Maianthemum dilatatum H. and M. Dearing 1939-5-26 3447 Humboldt Bishop Pine Lodge, N of Trinidad Comment
  UC1134631  Maianthemum dilatatum R. Stahelin 1933-5-17 Humboldt Arcata City Park Eureka Quad., Arcata City Park Comment
  UCSB15906  Maianthemum dilatatum Breedlove, Dennis 1962-6-8 Humboldt Along U.S. Highway 101, 8 miles north of Orick 60 Comment
  HSC101972  Maianthemum racemosum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 869 Humboldt Patterson Meadows 1566 Comment
  HSC15641  Maianthemum racemosum subsp. amplexicaule Greg Bos 1965-5-15 281 Humboldt 4 mi. W of Berry Summit along Hwy. 299 671 Comment
  HSC58049  Maianthemum racemosum subsp. amplexicaule G. L. Clifton 1979-8-1 11908 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC511452  Maianthemum racemosum subsp. amplexicaule Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC99006  Maianthemum racemosum subsp. amplexicaule Cara Witte 2007-6-13 259 Humboldt Along Forest Service Road 5N04. 1/4 mile east of spring near Grouse Mountain. 1564 Comment
  HSC34914  Maianthemum stellatum Thomas W. Nelson, James Nelson 1975-5-24 1844 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC512772  Maianthemum stellatum Doris K. Kildale 1926-3-26 1648 Humboldt Old Fortuna Road 15 Comment
  HSC59054  Marah oregana Thomas Wood 1979-4-20 121 Humboldt Along frontage Rd., parallel and E of Hwy. 101 at Patrick Creek Drive intersection, S of Patrick Creek. 6 Comment
  HSC7033  Marah oregana R. I. Bonn 1965-5-9 48 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  JEPS42473  Marah oregana Lincoln Constance 1934-5-31 743 Humboldt from w boundary of Park to Grasshopper Pk.(Squaw Cr.) rd (along n side of creek); South Fork Eel River, Bull Creek Flat Comment
  OBI35884  Marah oregana David J. Keil 1983-7-1 17293 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  HSC29883  Matricaria discoidea Thomas W. Nelson 1971-11-11 599 Humboldt Foot of Murray Rd., McKinleyville. Comment
  CDA18210  Medicago polymorpha G. D. Barbe, T. C. Fuller 1974-6-17 1838 Humboldt North Coast Ranges; Shelter Cove, uphill, E of Sail Court. 91 Comment
  UC162809  Medicago polymorpha J. P. Tracy 1909-8-15 3076 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC271172  Melica aristata Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  UC526915  Melica bulbosa Joseph P. Tracy 1932-7-12 10445 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC26614  Melica harfordii J. P. Smith, Steve Selva 1970-6-14 3848 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC99070  Melica harfordii Cara Witte 2007-7-12 521 Humboldt Along Forest Service Road 5N10. 1.25 miles south of intersection with 5N41. 1283 Comment
  UCD87540  Melica harfordii Peter H. Raven; R. Snow 1958-7-20 13626 Humboldt 5.3 miles southwest of Denny Post Office. Comment
Read comments
Apr 8 2014
  CAS-BOT-BC281025  Melica stricta Joseph P. Tracy 1935-7-30 14377 Humboldt W side at top of Salmon Summit 2103 Comment
  CAS-BOT-BC262472  Melica subulata Joseph P. Tracy 1935-7-25 14224 Humboldt Trinity Summit. Near Corral Prairie 1584 Comment
  SEINET200623 Image available Melica subulata Joseph P. Tracy 1935-7-25 14224 Humboldt Trinity Summit 1585 Comment
  UC526917  Melica subulata Joseph P. Tracy 1933-7-26 12910 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  UC552706  Melica subulata Joseph P. Tracy 1935-5-25 13898 Humboldt Dobbyn Creek; Northern Coast Ranges 152 Comment
  HSC79465  Melica torreyana Kenneth Clark 1980-4-18 609 Humboldt Along access trail to Deadman's Gulch. 46 Comment
  RSA46823  Melilotus albus Doris K. Kildale 1926-4-9 1739 Humboldt Samoa Road Comment
  SEINET5737441 Image available Melilotus officinalis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6112 Humboldt Collected in a waste area along Giuntoli Lane in Arcata. Adjacent to Eureka Sand and Gravel Company and across the road from T.P. Tire Service (1265 Giuntoli Lane).; Arcata Comment
  UC1225832  Mentha aquatica Joseph P. Tracy 1947-11-9 17945 Humboldt Ferndale 9 Comment
  HSC14248  Mentha canadensis Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  CDA5714  Mentha pulegium D. G. Kelch 2007-7-25 7 .502 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  HSC36045  Mentha pulegium Thomas W. Nelson 1975-9-24 2200 Humboldt Beside Indianola Rd., ca. 1/2 mi. E of its junction with Hwy. 101 Comment
  RSA167435  Mentha spicata Joseph P. Tracy 1950-9-22 19370 Humboldt Klamath River near Slate Creek; below Orleans 8 miles. 122 Comment
  UCD117667  Menziesia ferruginea June McCaskill; Katherine Onaga 1959-6-19 601 Humboldt East side of U.S. Highway 101, Russ Grove, Prairie Creek Redwoods State Park. Comment
  CAS-BOT-BC428713  Micranthes californica Doris K. Kildale 1927-3-20 2925 Humboldt Philipsville, south fork of Eel River Comment
  UC175183  Micropus californicus var. californicus Joseph P. Tracy 1913-6-13 4099 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UC1199338  Micropus californicus var. californicus Joseph P. Tracy 1919-5-31 5150 Humboldt near Mouth of Willow Creek; Northern Coast Region, Valley of the Trinity River 152 Comment
  CAS-BOT-BC322621  Microseris Milo S. Baker 1927-8-21 2488 a Humboldt Near Baldt Mt. 914 Comment
  SEINET11810179  Microseris laciniata H. P. Chandler 1901-1 1408 Humboldt Klamath River 244 Comment
  UC1223196  Microseris laciniata subsp. laciniata Joseph P. Tracy 1942-6-15 17169 Humboldt five mi n Garberville (along Eel River from South Fork Eel River to Scotia); Northern Coast Ranges, along Eel River from South Fork 60 Comment
  UC34192  Microseris laciniata subsp. leptosepala Harley P. Chandler June 1901 1408 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  UC302189  Microseris nutans Joseph P. Tracy 1926-6-20 7620 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC50571  Microsteris gracilis G. L. Clifton, Griswold 1979-8-1 12061 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  SEINET200380  Microsteris gracilis J. P. Tracy 1930-6-21 8789 Humboldt Larrabee Valley 701 Comment
  RSA14133  Mimulus aurantiacus var. aurantiacus Elmer I. Applegate 1923-9-12 3988 Humboldt Stone Lagoon, below Orick Comment
  SFV15855  Mimulus aurantiacus var. aurantiacus D. M. Thompson 1992-6-6 1116 Humboldt 0.8 miles south of Highway 101 interchange access road (to Trinity Town) along road to Luffenholtz Beach. East side of road on steep bank. 50 Comment
  POM273295  Mimulus cardinalis Lyman Benson 1928-7-5 371 Humboldt 20 mi. South Garberville, North Coast mtn range, S. Fork Eel river 457 Comment
  UC124422  Mimulus dentatus V. Rattan 1882-1 Humboldt Humboldt Bay Comment
  HSC74642  Mimulus guttatus M. A. Baker 1980-5-18 1366 Humboldt Near Black Mtn. 792 Comment
  UC582712  Mimulus inodorus Joseph P. Tracy 1935-7-24 14198 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  JEPS27379  Mimulus inodorus H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout (s of USGS Signal Rock); South Fork Mountain Comment
  UC41887  Mimulus kelloggii W. C. Blasdale 1896-6-8 Humboldt near Pilot Ridge; ; Mad River near Deer Creek, Humboldt Co. Comment
  JEPS8153  Mimulus layneae Joseph P. Tracy 1937-6-27 15382 Humboldt w of mouth South Fork of Trinity River; Friday Ridge 1219 Comment
  HSC100673  Mimulus moschatus Carl C. Marshall Sep 1886 248 Humboldt Ravines, etc. Comment
  HSC82403  Mimulus moschatus Thomas W. Nelson 1979-7-11 5035 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  UC26991  Mimulus nasutus C. C. Marshall 1888-1 Humboldt Comment
  HSC44508  Mimulus primuloides var. primuloides Brad Klipfel 1973-7-1 119 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC78916  Minuartia douglasii Jimerson, Imper 1982-5-17 1435 Humboldt Near Ashfield Ridge. 822 Comment
  BLMAR422  Minuartia douglasii Jennifer Wheeler May, 2007 422 Humboldt King range, Mill Creek, 914 Comment
  CAS-BOT-BC388620  Minuartia douglasii Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. Trail 914 Comment
  SEINET11943610  Minuartia douglasii J. P. Tracy 1950-1 18993 Humboldt 2 mi S of Burr Valley on Albee Road, Bridgeville to Blocksburg 1158 Comment
  HSC36642  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1899 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC58019  Minuartia pusilla G. L. Clifton 1979-7-31 11821 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC433029  Mitella ovalis Doris K. Kildale 1927-6-25 3577 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  UC18805  Modiola caroliniana Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6176 Humboldt near Ferndale; North-Western California Comment
  CHSC97981  Moehringia macrophylla J. McIntire; S. Lyon 2005-6-10 7 Humboldt 7.4 mi south of Hwy 299 on Forest Service Rd. NF1. Cold Springs Camp. 1402 Comment
  UC1191371  Mollugo verticillata Malcolm A. Nobs, S. Galen Smith 1949-8-11 1339 Humboldt eastern shore of Stone Lagoon; Stone Lagoo Comment
  HSC58155  Monardella odoratissima G. L. Clifton, Griswold 1979-8-2 12207 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC41256  Monardella odoratissima Brad Klipfel 1974-6-25 446 Humboldt Horse Mtn. Comment
  CAS-BOT-BC215569  Monardella odoratissima subsp. pallida Doris K. Kildale 1925-8-18 1229 Humboldt Trinity Summit 1828 Comment
  HSC58044  Monardella odoratissima subsp. pallida Gilbert Muth 1979-8-1 11900 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC74409  Monardella odoratissima subsp. pallida Gail Newton 1980-8-10 2023 Humboldt Near Blake Mtn. 1798 Comment
  SEINET4173669 Image available Monardella villosa var. glabella Joseph P. Tracy 1947-1 17782 Humboldt Trinity Summit; ridge top one mile west of Mud Springs, in serpentine formation 1158 Comment
  HSC26743  Moneses uniflora K. Irwin 1973-6-19 Humboldt S of road to Fern Canyon Comment
  SEINET11942541  Montia diffusa H. P. Chandler 1901-1 1271 Humboldt Redwood Belt, North Coast Ranges 152 Comment
  UC1275878  Montia diffusa Don Hagar 1957-5-21 59 Humboldt 3.5 mi sw of Willow Creek (Brush Mountain); Brush Mountain 853 Comment
  HSC69868  Montia linearis Thomas W. Nelson 1978-5-28 4097 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  CAS-BOT-BC445163  Montia parvifolia Harley P. Chandler 1901-5-1 1261 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  JEPS17211  Montia parvifolia Milo S. Baker 1923-7-31 143 a Humboldt 6 mi s of Kneeland (and w of Iaqua, Booths Run); North Coast, Booths Run Comment
  HSC90188  Morella californica Jean Hanson 1980-4-12 52 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  HSC58649  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-7-31 11677 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  HSC12417  Myosotis sylvatica D. Santana 1970-11-15 115 Humboldt Near Fickle Hill Rd. and 7th St. Comment
  HSC59659  Myosotis sylvatica Marla J. Carollo 1979-4-10 5 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  UC146196  Myrica californica J. P. Tracy 1906-8-18 2544 Humboldt immediate vicinity Eureka 0 Comment
  UC275529  Myrica californica Joseph P. Tracy 1924-1-20 6596 Humboldt near Samoa (around Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  RSA461902  Myrica californica H. E. McMinn 1931-6-28 2456 Humboldt Orick to Requa Comment
  SEINET6671234 Image available Myrica californica C. L. Hitchcock, J. S. Martin 1939-1 5437 a Humboldt Shelter Cove Comment
  HSC77877  Myriophyllum hippuroides J. M. Handley 1977-11-28 771128 .1 Humboldt Lake Prairie, Snow Camp Rd., E of Maple Creek 1067 Comment
  HSC77875  Myriophyllum sibiricum William White 1975-5-25 Humboldt Orick Beach ponds Comment
  HSC15608  Narthecium californicum J. P. Tracy 1930-7-17 9003 Humboldt S Fork Mtn. at McKay Camp 1677 Comment
  UCD87899  Nassella lepida A. H. Murphy 1951-5-18 43 Humboldt along road, 2.5 mi. northwest of Petrolia. Comment
  UCD87900  Nassella lepida A. H. Murphy 1951-5-18 s.n. Humboldt 2.5 mi. northwest of Petrolia on rocky road cut along county road. Petrolia to Ferndale. Comment
  CAS-BOT-BC60346  Nasturtium officinale Doris K. Kildale 1927-6-25 3555 Humboldt Shelter Cove. Comment
  HSC60107  Nasturtium officinale M. A. Baker 1977-6-6 375 Humboldt Hoopa Comment
  UCSB30594  Nasturtium officinale Edwards, David 1974-7-30 Humboldt West side of U.S. 101, ca. 30 yds. S. of 7th St. overpass, Arcata 15 Comment
  UC1198525  Navarretia atractyloides Joseph P. Tracy 1925-7-26 7207 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1198606  Navarretia intertexta Joseph P. Tracy 1936-6-10 14934 Humboldt w of mouth South Fork of Trinity River; South Fork of Trinity River 304 Comment
  JEPS70462  Navarretia squarrosa W. L. Jepson 1921-8-11 9416 Humboldt Big Lagoon Humboldt Coast Comment
  CDA40110  Navarretia squarrosa E. C. Whitney 1976-7-22 s.n. Humboldt Vic Guynup property, Field Brook. 0 Comment
  SEINET200628  Navarretia viscidula Joseph P. Tracy 1918-7-5 5036 Humboldt White Thorn Valley 305 Comment
  CHSC19477  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 miles north of Willow Creek along road on east side of Trinity River. Comment
  HSC32387  Nemophila menziesii var. atomaria Linda M. Barker 1974-5-11 183 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC34960  Nemophila menziesii var. atomaria Thomas W. Nelson 1975-5-24 1868 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC13603  Nemophila menziesii var. atomaria D. E. Anderson 1962-2-10 1911 Humboldt 1 mi. S of Trinidad Comment
  RSA21087  Nemophila menziesii var. menziesii Carl B. Wolf 1937-6-19 8915 Humboldt North Coast Range, 3 miles west of Little Van Duzen River at summit of grade - Dinsmores to Bridgeville. 762 Comment
  HSC48844  Nemophila parviflora Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 43 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC1196162  Nicotiana quadrivalvis Joseph P. Tracy 1940-10-17 16769 Humboldt 2 to 5 mi e South Fork (along Eel River); Eel River 45 Comment
  HSC77938  Noccaea fendleri subsp. californica Jimerson, D. K. Imper 1982-5-17 1434 Humboldt Near Ashfield Ridge. 822 Comment
  RSA0013605  Nuphar lutea subsp. polysepala C. B. Wolf 1937-9-14 9353 Humboldt Town of Blue Lake. 15 Comment
  HSC20656  Nuttallanthus texanus L. H. Myers 1963-4-5 19 Humboldt Dunes W of Lanpheres Rd., Mad River slough area Comment
  UCSB15645  Nuttallanthus texanus Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa; on peninsula on western side of Humboldt Bay Comment
  CAS-BOT-BC142289  Oemleria cerasiformis Thomas Nelson; Linda Barker 1977-6-3 3386 Humboldt Growing on flood plain of Mad River at south end of Mad River Bridge 53 Comment
  CAS-BOT-BC142291  Oemleria cerasiformis Joseph P. Tracy 1937-4-3 15249 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1198785  Oemleria cerasiformis Joseph P. Tracy 1923-4-1 6172 Humboldt Blue Lake; Northern Coast Ranges 60 Comment
  UC1400343  Oenanthe sarmentosa Robert F. Thorne and P. Everett 1965-8-7 35212 Humboldt Samoa Peninsula Comment
  UCD81853  Oenanthe sarmentosa Chuck Hughes 2009-6-18 102 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  UC203990  Oenothera wolfii Joseph P. Tracy 1918-7-1 4968 Humboldt moist bluff Northern Coast Ranges, Cape Mendocino (three mi s of point of cape) 3 Comment
  HSC57979  Oreostemma alpigenum var. andersonii G. L. Clifton, Griswold 1979-7-31 11704 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC637063  Orobanche californica subsp. californica Edward Lee 1934-8-17 1152 Humboldt East shore of Big Lagoon, 35 miles north of Eureka. Comment
  HSC100678  Orthocarpus Carl C. Marshall Jun 1886 110 Humboldt Near Mad River Beach. Comment
  HSC102044  Orthocarpus imbricatus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 947 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC96256  Osmorhiza berteroi Kaylea Eickhoff, Cara M. Witte 2005-6-10 7 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  UC646621  Osmorhiza occidentalis Joseph P. Tracy 1930-6-29 8810 Humboldt Buck Mountain; lower foothills of nw slope 762 Comment
  RSA254742  Osmorhiza purpurea Thomas W. Nelson, James Nelson 1973-5-28 945 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC16718  Oxalis articulata subsp. rubra David K. Smith 1968-11-20 70 Humboldt At jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  HSC16719  Oxalis articulata subsp. rubra D. E. Anderson 1961-9-22 1827 Humboldt Comment
  JEPS43140  Oxalis oregana W. L. Jepson 1932-7-26 16414 Humboldt Bull Creek 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
  RSA254427  Oxalis oregana Larry L. Norris 1975-4-10 2310 Humboldt Samuel P. Taylor State Park Comment
  UC1197420  Oxalis oregana Joseph P. Tracy 1926-4-25 7413 Humboldt Strong's Station Northern Coast Ranges 60 Comment
  CDA2147  Panicum miliaceum T. R. Haig 1975-8-27 Humboldt Korbel. 0 Comment
  CHSC69504  Parentucellia viscosa Vernon Oswald; Lowell Ahart 1997-9-4 8855 Humboldt Samoa Dunes Recreation Area at the south end of the North Split separating Humboldt Bay from the ocean. Near sea level. Comment
  HSC39934  Paxistima myrsinites J. O. Sawyer 1970-6-25 2291 Humboldt 1646 Comment
  UC902126  Paxistima myrsinites Joseph P. Tracy 1942-6-23 17246 Humboldt 2 mi. e. Box Camp; Trinity Summit 1524 Comment
  RSA293127  Pellaea mucronata Thomas W. Nelson, James Nelson 1976-5-30 2612 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1565791  Penstemon anguineus R. Spellenberg 1990-7-9 10226 Humboldt extreme e edge of county 14 air mi sw Burnt Ranch (14 mi s of Calif. Hwy 299 and Berry Summit on USFS Rd 1, on Pilot Ridge); Pilot Ridge, sw of Burnt Ranch, s of Berry Summit 1371 Comment
  JEPS86690  Penstemon anguineus L. R. Heckard with T. I. Chuang 1990-7-15 6769 Humboldt ca 15 mi n Highway 36 (South Fork Mountain Rd); South Fork Mountain Rd., n of Hwy 36 1700 Comment
  JEPS5715  Penstemon newberryi var. berryi Chestnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  UC1565792  Penstemon newberryi var. berryi R. Spellenberg 1990-7-9 10229 Humboldt 6 air mi WNW of Hyampom (South Fork Mountain, USFS Rd 1.5 mi N of Blake Mt.; 36 mi S of Hwy 299 and Berry Summit); Humboldt Co., extreme E edge 1676 Comment
  SEINET12350908  Pentagramma triangularis E. A. York 1990-1-10 2660 Humboldt USGS Redwood Field Station, Arcata Comment
  UCD137780  Pentagramma triangularis K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC32525  Perideridia kelloggii Thomas W. Nelson 1973-9-3 1126 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1389969  Perideridia kelloggii T. I. Chuang and B. G. Briggs 1963-4-10 5087 Humboldt 17 mi se Bridgeville (along stream bank) Comment
  CHSC116958  Petasites frigidus var. palmatus Matthew Forster 2013-4-7 Humboldt Along trail adjacent to Trinidad State Beach, Coastal Bluffs. 47 Comment
  HSC98989  Petasites frigidus var. palmatus Cara Witte 2008-6-4 680 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1276 Comment
  UC1070054  Petasites frigidus var. palmatus R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quad. Comment
  UC169010  Phacelia bolanderi Harley P. Chandler June 1901 1456 Humboldt between Bluff Creek and Orleans; North Coast Ranges 304 Comment
  HSC63847  Phacelia heterophylla M. A. Baker 1979-6-27 917 Humboldt Comment
  UCD120520  Phacelia heterophylla subsp. virgata Alice Eastwood; John Thomas Howell 1937-6-23 4757 Humboldt Dinsmore's. Comment
  HSC57658  Phacelia mutabilis G. L. Clifton, Griswold 1979-7-25 10831 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC10555  Phalaris arundinacea D. J. McVean 1965-5-18 79 Humboldt Along Old Arcata Rd., just S of intersection with Inidanola Rd. Arcata, CA Comment
  HSC93782  Phalaris arundinacea Gordon Leppig 1998-5-25 793 Humboldt Arcata, Alder Grove Pond 18 Comment
  UC1152047  Phalaris californica Joseph P. Tracy 1951-7-27 19630 Humboldt near Redcrest Englewood Comment
  CAS-BOT-BC76556  Philadelphus lewisii W. R. Dudley 1899-6-21 s.n. Humboldt Near Eel River below Dyerville Comment
  CAS-BOT-BC76566  Philadelphus lewisii Doris K. Kildale 1927-7-2 3661 Humboldt Redmond Creek at Berry's 289 Comment
  JEPS49596  Philadelphus lewisii W. L. Jepson 1902-7-29 2124 Humboldt Hupa Valley; along streams 243 Comment
  UC666824  Philadelphus lewisii Joseph P. Tracy 1938-6-9 15872 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC250881  Phleum pratense Doris K. Kildale 1928-6-24 7064 Humboldt Redwood Creek at Berry's Comment
  SEINET200960 Image available Phleum pratense Joseph P. Tracy ` 2892 Humboldt Ridge between van Duzen and Mad Rivers near low gap 914 Comment
  RSA20789  Phlox adsurgens C. B. Wolf 1937-8-13 9254 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  UC615025  Phlox adsurgens Beryl O. Schreiber 1934-6-6 1144 Humboldt 5 mi e Gray's resort (road to Redding); Redwood Creek Comment
  UCD118236  Phlox adsurgens H. P. Olmo 1928-6-10 s.n. Humboldt Wooley Creek. Comment
  UC1198557  Phlox gracilis Joseph P. Tracy 1908-6 2829 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  HSC74351  Phoenicaulis cheiranthoides Gail Newton 1980-6-28 741 Humboldt Near Mad River Butte. 1536 Comment
  RSA698146  Phoradendron villosum J. Russell Bruff 1937-3-19 802 Humboldt Oak Flat camp - Ridge Route. Comment
  CAS-BOT-BC140583  Physocarpus capitatus L. R. Abrams 1918-6-15 7129 Humboldt Brannan Mt near Willow Creek Comment
  JEPS44661  Physocarpus capitatus W. L. Jepson 1936-8-13 17894 Humboldt S Fork Eel River Philipsville (Franklin K. Lane grove) Comment
  JEPS44662  Physocarpus capitatus Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  RSA40785  Physocarpus capitatus Carl B. Wolf 1944-10-25 11467 Humboldt Sandy river bank, along the Eel River, Redwood Highway, at Richardson Grove. 61 Comment
  CAS-BOT-BC78289  Pinus attenuata A. A. Heller 1917-7-7 12811 Humboldt Alder Springs grade below Rattlesnake [spring] Spring Comment
  CAS-BOT-BC73289  Pinus contorta L. R. Abrams 1916-7-18 6074 Humboldt Arcata to Trinidad. Comment
  HSC1487  Pinus contorta J. W. Johnson 1962-4-29 1294 Humboldt Ridge 8, Lanphere Farm, Samoa Peninsula Comment
  MACF019659  Pinus contorta E. R. Blakley 1966-8-17 6799 Humboldt Patrick's Point 5 mi. North of Trinidad. 60 Comment
  CAS-BOT-BC73113  Pinus lambertiana Doris K. Kildale 1926-9-5 2611 Humboldt Lassecks Peaks, Goat Camp 1661 Comment
  UC502915  Pinus monticola Joseph P. Tracy 1927-6-12 8134 Humboldt Horse Mountain Northn Coast Ranges, Horse Mountain (in open forest of Jeffrey Pine) 1524 Comment
  CAS-BOT-BC79029  Pinus ponderosa Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC98866  Pinus ponderosa var. ponderosa Cara Witte 2008-7-1 787 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .5 mile south of intersection with 5N04 and 4N32E. 1406 Comment
  POM208985  Piperia candida Lincoln Constance 1934-5-27 708 Humboldt Humboldt Redwood Park, in Border Forest, bluff above Bull Creek, Flat Grove 61 Comment
  UC14939  Piperia elegans Harley P. Chandler Jun 1901 1385 b Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC34541  Pityopus californicus Rudolf W. Becking 1971-9-24 Humboldt HSC School Forest Freshwater. Bulk Collection 21 Comment
  JEPS61016  Plagiobothrys Joseph P. Tracy 1942-6-15 Humboldt Garberville 304 Comment
  UC1239612  Plagiobothrys reticulatus Joseph P. Tracy 1935-5-25 13884 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  JEPS60971  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1938-6-17 15963 Humboldt s point of Cape; Cape Mendocino 3 Comment
  JEPS60972  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1937-6-20 15351 Humboldt 10 mi up stream from mouth; Bear River 152 Comment
  UCD124475  Plantago erecta Peter H. Raven 1963-5-15 18371 Humboldt Lanphere Ranch just west of Mad River Slough, near Arcata. Comment
  UC179952  Plantago lanceolata Joseph P. Tracy 1914-5-30 4484 Humboldt near Hydesville; Northern Coast Region 60 Comment
  SEINET14412274  Plantago major Joseph P. Tracy 1942-1 17300 Humboldt Fickle Hill, 6 miles southeast of Arcata 610 Comment
  SJSU11079  Plantago maritima H. T. Harvey 1977-7-6 608 Humboldt S Spit, Humboldt Bay Comment
  HSC54704  Platanthera dilatata Overton, Butler 1979-7-26 10030 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC74729  Platanthera dilatata Gail Newton 1981-7-24 2322 Humboldt Near Bug Creek Butte 1417 Comment
  SBBG51158  Platanthera dilatata var. leucostachys R. S. Woglum 1937-8-29 2037 a Humboldt State Park grounds S of Trinidad Comment
  HSC54529  Platanthera sparsiflora Overton, Butler 1979-7-23 9471 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  CHSC31283  Platystemon californicus Mark Stopher 1980-4-2 44 Humboldt Samoa Peninsula near Humboldt Bay. In sand dunes. 4 Comment
  UC602529  Plectritis brachystemon Joseph P. Tracy 1932-5-22 10117 Humboldt between Miranda and Redway (North Coast Ranges, South Fork of Eel River); North Coast Ranges, South Fork Eel River 91 Comment
  JEPS4813  Plectritis brachystemon Joseph P. Tracy 1933-5-20 12250 1/2 Humboldt Northern Coast Ranges, Mattole Valley Mattole Valley; Northern Coast Ranges, Mattole Valley 60 Comment
  HSC59486  Plectritis congesta M. A. Ericksen 1979-4-29 239 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  HSC21691  Plectritis congesta subsp. brachystemon Jack Rockwell 1962-5-4 51 Humboldt E of road along stream bank. 549 Comment
  HSC21686  Plectritis congesta subsp. congesta J. R. Good 1964-5-3 37 Humboldt 0.10 mi. N of Fairhaven, 60 yds. W of road. Comment
  UC1103803  Pleuropogon refractus Joseph P. Tracy 1926-5-22 7514 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  RSA10113  Poa Joseph P. Tracy 1930-7-19 9053 Humboldt South Fork Mountain; along summit near Blake lookout. 1738 Comment
  RSA44528  Poa bulbosa Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  CAS-BOT-BC255119  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  RSA10143  Poa confinis Joseph P. Tracy, H. E. Parks 1927-4-24 7947 Humboldt Eureka 9 Comment
  UC205645  Poa douglasii Joseph P. Tracy 1917-5-30 4804 Humboldt sand dunes of Ocean Beach at Little River Comment
  RSA183645  Poa kelloggii D. E. Anderson 1965-5-6 3622 Humboldt 4.8 miles west of bridge over North Fork of Mad River, along Hw. 299. Alder bench below highway backslope Comment
  POM296665A  Poa macrantha Lyman Benson 1929-7-19 1819 Humboldt Clam Beach, Trinidad Comment
  UCD91542  Poa macrantha J. W. Congdon 1904-7-3 s.n. Humboldt on the Peninsula. City of Eureka. Comment
  UCD91545  Poa macrantha Freed W. Hoffman 1946-5-21 1719 Humboldt near Eel River. Comment
  UC1103183  Poa pratensis subsp. pratensis Joseph P. Tracy 1904-5-29 2038 Humboldt hillside near Field's Landing; Northern Coast Region, Humboldt Bay 0 Comment
  UC525616  Poa pratensis subsp. pratensis Joseph P. Tracy 1932-7-14 10537 Humboldt Corral Prairie; Klamath Mts, Trinity Summit 1524 Comment
  HSC32621  Poa secunda subsp. secunda D. E. Anderson 1965-5-22 3728 Humboldt Hunt Ranch, 3-4 mi. N of Bridgeville. Comment
  HSC98797  Poa secunda subsp. secunda Cara Witte 2008-6-11 712 Humboldt National Forest Road 5N10. 2.5 miles south of intersection with Forest Service Road 5N41. 1303 Comment
  UC1103188  Poa trivialis Joseph P. Tracy 1938-6-17 15948 Humboldt 1 mi e Cape Mendocino (Cape Ridge) 304 Comment
  RSA0022165  Pogogyne zizyphoroides Joseph P. Tracy 1946-5-30 17544 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town 61 Comment
  UC1191118  Polemonium carneum Joseph P. Tracy 1928-5-20 8440 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  CDA3404  Polycarpon tetraphyllum Gordon Leppig, Sylvia Leppig 2000-12-7 1524 Humboldt 10th and I Streets, Arcata. Comment
  HSC48413  Polygala californica J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9929 Humboldt Ishi Pishi Rd., 2.5 mi. from Jct. with State Rte. 36 in Orleans. 213 Comment
  SEINET1004856  Polygala californica Joseph P. Tracy 1912-1 3667 Humboldt Alton 30 Comment
  JEPS43010  Polygala californica Lincoln Constance 1934-5-23 608 Humboldt se slope of mountain above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC668188  Polygala cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC167572  Polygala cornuta var. cornuta Henry M. Pollard 1946-8-11 s.n. Humboldt Perch Creek, Orleans region Comment
  HSC64421  Polygonum aviculare J. P. Smith 1971-10-9 5048 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC179957  Polygonum bistortoides Joseph P. Tracy 1914-7-4 4536 Humboldt Bald Mountain Northern Coast Ranges (High Prairie) 1066 Comment
  UC132198  Polygonum convolvulus Joseph P. Tracy 1907-8-20 2600 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UCD100266  Polygonum douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt Box Camp Trail, Trinity Summit. 1676 Comment
  UC144100  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1909-7-31 3038 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC98067  Polygonum douglasii var. douglasii Cara Witte 2007-7-11 508 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  CAS-BOT-BC414718  Polygonum minimum Joseph P. Tracy 1932-7-18 10702 Humboldt Trinity Summit. Head of Brett Hole 1828 Comment
  HSC55270  Polygonum minimum Overton, Butler 1979-8-2 12643 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA178533  Polygonum minimum Joseph P. Tracy 1950-8-8 19281 Humboldt On trail betw Box Camp and Croghon Hole. 1677 Comment
  CAS-BOT-BC109185  Polygonum paronychia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  UC672944  Polygonum paronychia Joseph P. Tracy 1927-1-15 7836 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC1222467  Polygonum sawatchense subsp. oblivium Joseph P. Tracy 1933-8-30 13023 Humboldt Grouse Mountain 1524 Comment
  HSC98687  Polygonum sawatchense subsp. oblivium Cara Witte 2007-7-5 420 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1578 Comment
  SEINET200792 Image available Polypodium californicum Joseph P. Tracy 1932-3-20 9784 Humboldt Trinidad 61 Comment
  HSC1102  Polypodium californicum Francis Winter 1960-4-24 Humboldt 1.0 mi. N of Redwood Creek Ranch 396 Comment
  UCD136880  Polypodium glycyrrhiza Linda M. Barker 1976-2-22 1313 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC76841  Polypodium glycyrrhiza Volney Rattan 1903-1-1 s.n. Humboldt Above Mad River. Comment
  UC163333  Polypodium glycyrrhiza J. P. Tracy 1909-10-7 3113 Humboldt near Redwood Creek Redwood Creek; Bald Hills 609 Comment
  UC197909  Polypodium glycyrrhiza Joseph P. Tracy 1913-3-9 4023 Humboldt Hydesville; Northern Coast Region 30 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
  UCD91203  Polypogon maritimus A. H. Murphy 1951-6-13 61 Humboldt 2 miles south of Blocksburg. Tooby and Prior Ranch. Comment
  HSC65445  Polypogon monspeliensis J. P. Smith 1973-5-26 6813 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UCD91355  Polypogon monspeliensis A. H. Murphy 1951-7-10 83 Humboldt Along Strong Station-Yager Creek road, about 1 mile from Strong Station. Comment
  UCD91383  Polypogon monspeliensis Joseph P. Tracy 1942-6-15 17144 Humboldt Redwood Creek, opposite Redway on South Fork and Eel River. 91 Comment
  UC519315  Polystichum Joseph P. Tracy 1933-10-15 13101 Humboldt along S Fork Eel River Miranda; North Coast Ranges 91 Comment
  UC338401  Polystichum imbricans subsp. imbricans unknown 1904-7-13 Humboldt along stage rd Comment
  HSC13046  Polystichum munitum Jana Kattenhorn 1970-10-24 123 Humboldt HSU campus S of Building 52 Comment
  HSC93265  Polystichum munitum Gordon Leppig 1998-3-11 716 Humboldt Redwood Park, near Jolly Giant Cr. 91 Comment
  POM305537  Polystichum munitum Henry J. Ramsey, Henry J. Ramsey 1939-10-13 834 Humboldt Highway 299 in mountains. Comment
  SEINET3874035 Image available Polystichum munitum P. F. Yull 1966-4-14 121 Humboldt Adjacent to Penninsula School, Samoa.; 0 Comment
  JEPS64534  Populus Joseph P. Tracy 1939-4-18 16211 Humboldt on South Fork of Eel River between Miranda and Redway (at Sylvandale); North Coast Ranges, South Fork of Eel River 91 Comment
  CAS-BOT-BC102905  Populus trichocarpa Doris K. Kildale 1926-3-24 1618 Humboldt Lindsey Creek bridge - Lower Mad River 26 Comment
  HSC56204  Populus trichocarpa G. L. Clifton, Griswold 1979-8-2 12195 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1173732  Populus trichocarpa Joseph P. Tracy 1939-4-18 16211 Humboldt on South Fork of Eel River between Miranda and Redway Sylvandale; North Coast Ranges, on South Fork of Eel River 91 Comment
  UC1196663  Populus trichocarpa Joseph P. Tracy 1932-5-1 9842 Humboldt along Van Duzen River Alton (North Coast Ranges); , along Van Duzen River 30 Comment
  UC1196668  Populus trichocarpa E. Ethel Tracy 1918-4-20 Humboldt Scotia Northern Coast Ranges, on Eel River (on Eel River) 30 Comment
  UC275528  Populus trichocarpa Joseph P. Tracy 1923-5-6 6197 Humboldt Blue Lake; Northern Coast Ranges, Blue Lake 30 Comment
  UC195349  Potamogeton pectinatus Joseph P. Tracy 1916-6-19 4718 Humboldt Dobbyn Creek; Northern Coast Ranges 182 Comment
  CAS-BOT-BC453910  Potamogeton pectinatus Robert F. Thorne; P. Everett 1965-8-9 35343 Humboldt Along Hwy. 101 about 3 mi. N of Eureka 1 Comment
  CAS-BOT-BC454065  Potamogeton pusillus subsp. pusillus Robert F. Thorne 1965-9-19 35463 Humboldt Freshwater Lagoon S of Orick 3 Comment
  UC1099897  Potamogeton pusillus var. pusillus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1162 Humboldt 1 mi s of Fields Landing; Eel River Valley Comment
  CHSC68558  Potentilla anserina subsp. pacifica Vernon H. Oswald 1997-4-29 8349 Humboldt Shorebird Loop Trail between the trailhead and Lond Pond, Humboldt Bay NWR. Along the trail. 0 Comment
  UCD113696  Potentilla anserina subsp. pacifica Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  HSC98969  Potentilla glandulosa subsp. reflexa Cara Witte 2007-6-27 364 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/4 mile east of spring. 1583 Comment
  HSC101986  Potentilla glandulosa var. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 884 Humboldt Patterson Meadows 1566 Comment
  HSC100909  Potentilla gracilis Carl C. Marshall Jun 1886 268 Humboldt Bald Hills. Comment
  HSC44511  Potentilla gracilis Brad Klipfel 1973-7-1 115 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC48814  Potentilla gracilis var. fastigiata Brad Klipfel 1973-7-31 228 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC75470  Potentilla gracilis var. fastigiata J. O. Sawyer 1980-7-18 3617 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC585628  Potentilla gracilis var. gracilis Joseph P. Tracy 1933-8-6 12929 Humboldt on Bald Hills e Orick (Tomlinson Ranch); on Bald Hills e of Orick, Tomlinson Ranch 670 Comment
  HSC57112  Prosartes hookeri Overton, Butler 1979-7-25 9855 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  CAS-BOT-BC517503  Prosartes smithii H. C. Cantelow 1936-5-17 s.n. Humboldt 3 miles east of Orick Comment
  CAS-BOT-BC517514  Prosartes smithii Kenneth Clark 1980-3-24 539 Humboldt Upper terrace of Dead Man's Gulch; Shelter Cove 76 Comment
  HSC59658  Prosartes smithii Marla J. Carollo 1979-4-10 4 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  HSC97300  Prosartes smithii M. Mesler 2006-6-24 620 Humboldt NNE of Grouse Mtn., 1.1 mi. from NF 1 1555 Comment
  SEINET12044823  Prosartes smithii H. C. Cantelow 1936-1 s.n. Humboldt 5 mi N of Orick Comment
  UCR179386  Prunella vulgaris Katherine Esau 1934-5-6 s.n. Humboldt Fort Seward 152 Comment
  HSC81963  Prunella vulgaris subsp. lanceolata Thomas W. Nelson, Jane P. Nelson 1979-7-3 4946 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  RSA134596  Prunella vulgaris var. lanceolata Percy C. Everett, E. K. Balls 1959-10-25 23961 Humboldt 14 miles W of Willow Creek on Hwy 299 to Arcata. 503 Comment
  UC1321003  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-21 636 Humboldt s Weott (Burlington Residence Area and Campground, Humboldt Redwoods State Park); Humboldt Redwoods State Park Comment
  UC1402049  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-21 636 -7 Humboldt Comment
  HSC38513  Prunus emarginata D. E. Anderson, J. P. Smith 1971-6-18 1087 Humboldt Horse Mtn. Comment
  RSA46842  Prunus emarginata Doris K. Kildale 1927-7-22 3813 Humboldt Lasseck's Peaks Comment
  UC249638  Prunus emarginata Joseph P. Tracy 1922-9-17 6116 Humboldt North Fork Mad River, at Korbel North Fork Mad River; Northern Coast Region, , Korbel 30 Comment
  UC582516  Pseudognaphalium thermale Joseph P. Tracy 1935-7-31 14388 Humboldt Salmon Summit 1767 Comment
  UC1173656  Pseudognaphalium thermale Joseph P. Tracy 1939-7-13 16348 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  CAS-BOT-BC80117  Pseudotsuga menziesii Carl B. Wolf 1936-10-29 1785 Humboldt Old Coast Road 7 miles so. of Honeydew P.O. 304 Comment
  HSC54603  Pseudotsuga menziesii var. menziesii Overton, Butler 1979-7-24 9686 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC55157  Pseudotsuga menziesii var. menziesii Gilbert Muth 1979-8-1 12110 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC709421  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1941-4-11 16859 Humboldt Willow Creek Canyon; along Trinity Highway 609 Comment
  JEPS40497  Psilocarphus brevissimus var. brevissimus Joseph P. Tracy 1940-7-7 16674 Humboldt Grouse Mountain 1554 Comment
  HSC100525  Psoralea physodes Carl C. Marshall Jun 1885 11 Humboldt Pilot Creek. Comment
  POM232028  Pteridium aquilinum var. pubescens I. L. Wiggins 1930-7-11 4684 Humboldt Near Samoa Comment
  UCD39989  Pteridium aquilinum var. pubescens Rodney Gale Myatt 1971-9-21 1187 Humboldt Near Orleans, northeast of Hoopa Reservation, and along Klamath River. 426 Comment
  JEPS19284  Pycnanthemum californicum Joseph P. Tracy 1931-9-7 9637 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  CHSC104068  Pyracantha fortuneana Peter F. Zika 2009-6-16 24504 Humboldt Klamath Ranges. On ledges above W side of Route 96, near Klamath River. 180 Comment
  CAS-BOT-BC460596  Pyrola aphylla Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC462869  Pyrola asarifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  RSA0080452  Pyrola picta Lyman Benson 1928-7-10 400 Humboldt Woott Ranger Station. 1067 Comment
  UCD47053  Quercus X morehus W. L. J. Jun-5 Jul 1903 2191 Humboldt Van Arsdale Ranch, Halker Valley region. Expedition of W.L. Jepson and W.W. Mott from Ukiah to southern Humboldt Co., via the Blue Rock Ridge and return via Fort Bragg. 457 Comment
  HSC40858  Quercus chrysolepis Thomas W. Nelson 1976-7-9 2988 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  HSC41342  Quercus chrysolepis Brad Klipfel 1974-8-2 504 Humboldt Horse Mtn. Comment
  CAS-BOT-BC94315  Quercus garryana Doris K. Kildale 1927-6-25 3580 Humboldt Ettersburg Comment
  UC1193247  Quercus garryana P. Zinke 190 Humboldt 5 mi se Punta Enda; Lake Ridge at the Lake 579 Comment
  UC667989  Quercus garryana Joseph P. Tracy 1935-7-14 14090 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC105166  Quercus kelloggii Doris K. Kildale 1928-7-1 5312 Humboldt Klamath River at N of Bluff Creek Comment
  CAS-BOT-BC105168  Quercus kelloggii Doris K. Kildale 1928-10-7 6746 Humboldt Willow Creek Flat on Trinity River Comment
  RSA624390  Quercus kelloggii Louis C. Wheeler 1952-9-14 6931 Humboldt [No location information on label.] Comment
  UCD165088  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 21.1 mi. from Garberville along Alderpoint Rd. 107 Comment
  HSC70635  Quercus sadleriana R. York 1980-5-18 601 Humboldt Near Black Mtn. 792 Comment
  UCD47220  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi. N.E. of Hoopa along trail to Trinity Summit from end of forest Rd. 1463 Comment
  RSA178538  Quercus wislizeni Joseph P. Tracy 1950-6-15 18796 Humboldt Mail Ridge, north of Harris 7 miles Comment
  UC1196240  Ranunculus californicus J. P. Tracy 1901-4-7 1005 Humboldt immediate vicinity of Eureka 0 Comment
  SEINET516271  Ranunculus californicus Vernon H. Oswald 1998-4-16 8912 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  UC162922  Ranunculus californicus Joseph P. Tracy 1911-5-27 3191 Humboldt Humboldt Bay Northern Coast Region (sand dunes of beach) Comment
  CAS-BOT-BC378852  Ranunculus californicus var. californicus Doris K. Kildale 1926-3-20 1549 Humboldt Near mouth of Little River Comment
  UC180239  Ranunculus flammula Joseph P. Tracy 1914-9-6 4614 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC18216  Ranunculus hebecarpus D. E. Anderson 1965-5-8 3628 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  UC1196269  Ranunculus muricatus J. P. Tracy 1907-6-10 2566 Humboldt Immediate vicinity of Eureka 0 Comment
  BLMAR362  Ranunculus muricatus Clara Sander 2003-5-21 362 Humboldt South Spit, West side of road 9 Comment
  JEPS60699  Ranunculus occidentalis W. L. Jepson 1934-5-7 16703 Humboldt Buckeye Prairie Bull Creek Comment
  JEPS55183  Ranunculus occidentalis W. L. Jepson 1902-6-20 1895 Humboldt Fort Seward Ranch Ridge Comment
  UC1196234  Ranunculus occidentalis Joseph P. Tracy 1914-5-3 4417 Humboldt corner Harris St. and Broadway (top of Bluff); Northern Coast Region, Eureka 0 Comment
  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
  HSC18171  Ranunculus occidentalis var. occidentalis Elrid H. Spinas 1948-5-15 11 Humboldt Horse Mtn. Comment
  SDSU10122  Ranunculus repens D. F. Howe 1962-5-22 3306 Humboldt Orick. 30 Comment
  RSA554594  Ranunculus repens Walter Wisura 1993-5-9 4912 Humboldt Hwy 255 W of Arcata. Comment
  HSC18186  Ranunculus repens var. repens R. D. Modafferi 1965-5-9 55 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  UCD18404  Ranunculus testiculatus Jack Major 1982-4-18 s.n. Humboldt 13 miles east of Winnemucca on I-80, north lane. Comment
  HSC64070  Raphanus sativus J. P. Smith 1971-10-6 4965 Humboldt End of Murray Rd. in McKinleyville. Comment
  RSA2941  Rhamnus californica Carl B. Wolf 1931-8-31 2381 Humboldt Near mouth of S Fork of Trinity River, on road to sandy bar swimming hole. 244 Comment
  RSA202161  Rhamnus californica subsp. occidentalis W. L. Jepson 1902-1 1977 Humboldt Three Creeks to Willow Creek. 762 Comment
  RSA7737  Rhamnus californica subsp. occidentalis Doris K. Kildale 1928-10-7 6748 Humboldt Willow Creek Canyon, 7 miles W of Trinity River Comment
  RSA202162  Rhamnus purshiana W. L. Jepson 1902-6-24 1932 Humboldt Karbal to Rugel's Ranch Comment
  HSC7877  Rhododendron macrophyllum J. Sandborg, F. Sandborg May 1968 14 Humboldt Bluff Creek near Notice Creek, hillside 793 Comment
  HSC7879  Rhododendron macrophyllum G. T. Nordstrom 1966-5-4 25 Humboldt Kneeland- Maple Creek road, 1/8 mi. W of the jct. with Fickle Hill rd. Comment
  RSA2944  Rhododendron macrophyllum C. B. Wolf 1931-8-29 2370 Humboldt Near summit of Orick Hill on road to Weitchpec. 305 Comment
  UC1733675  Rhododendron occidentale Frank Gould, Kay H. Beach 1940-5-5 1041 Humboldt along north coast, north of Eureka. Comment
  UC604660  Rhododendron occidentale Joseph P. Tracy 1938-7-5 16015 Humboldt 4 mi s of Eureka (Spruce Point at junction of Humboldt Hill road with highway); Spruce Point 9 Comment
  CAS-BOT-BC200384  Rhododendron occidentale var. paludosum W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  CDA21386  Rhododendron occidentale var. paludosum G. F. Hrusa, T. D. Wilfred, N. Kang 1992-5-4 9401 Humboldt North Coast Ranges; Stagecoach Hill on Kane Rd. above and immed. NW of Big Lagoon and SE of Stone Lagoon. 158 Comment
  HSC54528  Rhododendron occidentale var. paludosum Overton, Butler 1979-7-23 9468 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  RSA0062952  Rhododendron occidentale var. paludosum C. B. Wolf 1934-7-2 5905 Humboldt 4.5 miles from Snow Camp on road to Bald Mt (Mtns E of Korbel). 1067 Comment
  CAS-BOT-BC433130  Ribes Doris K. Kildale 1927-5-15 3298 Humboldt Petrolia Comment
  UC667065  Ribes binominatum Joseph P. Tracy 1933-7-11 12696 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC92884  Ribes bracteosum Greg de Nevers 2001-4-19 12258 Humboldt Prairie Creek, Redwoods State Park. 91 Comment
  HSC64260  Ribes bracteosum J. O. Sawyer, M. A. Ericksen 1979-6-23 3396 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  RSA0025005  Ribes divaricatum var. pubiflorum L. R. Abrams 1922-6-25 8248 Humboldt Near South Bay. Comment
  HSC99025  Ribes lacustre Cara Witte 2008-7-1 781 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  JEPS49366  Ribes lacustre P. E. Goddard 1901-7 125 Humboldt Trinity Summit Trail Comment
  JEPS79965  Ribes lacustre Joseph P. Tracy Jul 16 1930-Jul 19 1930 9078 Humboldt near McKay Camp (Northern Coast Ranges, South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC176803  Ribes laxiflorum H. E. Parks; S. T. Parks 1937-6-4 24004 Humboldt Along Prairie Creek at Valley Green Comment
  CSUSB1881  Ribes menziesii Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  CSUSB1882  Ribes menziesii Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  RSA0021772  Ribes menziesii Doris K. Kildale 1927-6-25 3570 Humboldt Shelter Cove. Comment
  UC1198945  Ribes roezlii Joseph P. Tracy 1932-3-19 9788 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  BLMAR226  Ribes roezlii var. amictum Jennifer Anthony-Wheeler 1996-7-11 226 Humboldt N.Dobbyn creek 1005 Comment
  HSC20329  Ribes roezlii var. cruentum R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-27 1360 Humboldt 1.0 mi. E of Redwood Creek along Hwy. 299 Comment
  RSA0024583  Ribes roezlii var. cruentum Jim R. Shevock 1972-3-26 1465 Humboldt Panther Ridge, W of Willow Creek. 305 Comment
  UC667053  Ribes sanguineum Joseph P. Tracy 1935-7-25 14246 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC211979  Ribes sanguineum Joseph P. Tracy 1942-6-23 17238 Humboldt Near Box Camp, Trinity Summit 1524 Comment
  CAS-BOT-BC144681  Ribes sanguineum var. glutinosum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC93267  Ribes sanguineum var. glutinosum Gordon Leppig 1998-3-25 723 Humboldt McKinleyville, Central Ave. 43 Comment
  UC1198909  Ribes sanguineum var. glutinosum Joseph P. Tracy 1948-9-26 18227 Humboldt 6 mi se Arcata (Fickle Hill) 609 Comment
  UC1215537  Ribes sanguineum var. glutinosum D. E. Anderson 1962-1-12 1907 Humboldt along road to Lanphere Ranch Comment
  HSC99027  Ribes viscosissimum Cara Witte 2008-7-1 783 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  HSC69840  Romanzoffia californica R. Kalal 1979-5-6 52 Humboldt Trinidad Head 30 Comment
  HSC84002  Romanzoffia californica L. P. Janeway 1983-4-30 242 Humboldt At E Fork of USFS Campground 473 Comment
  BLMAR77  Rosa gymnocarpa Jennifer Anthony-Wheeler 1994-6-2 77 Humboldt IAQUA, growing along logging rd 3/4mi from beginning of rd 853 Comment
  CAS-BOT-BC146478  Rosa gymnocarpa Ella Dales Cantelow 1936-5-17 1402 Humboldt 4 1/2 mi. E. of Orick Rd to Yreka Comment
  HSC32946  Rosa gymnocarpa Thomas W. Nelson, James Nelson 1973-5-28 957 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC44333  Rosa gymnocarpa Brad Klipfel 1975-6-17 678 Humboldt Horse Mtn. Comment
  OBI35864  Rosa gymnocarpa David J. Keil 1983-7-2 17330 Humboldt Horse Mtn Summit SW of Willow crk Comment
  HSC100635  Rosa gymnocarpa Carl C. Marshall Jun 1885 70 Humboldt High hills and mtns. Comment
  HSC98988  Rosa nutkana Cara Witte 2007-7-3 412 Humboldt Along National Forest 1. Approximately 1 mile south of White Oak Opening. 1364 Comment
  UC12845  Rosa nutkana subsp. macdougalii J. Burtt Davy 1899-6-13 5492 Humboldt along river near Camp Grant; Eel River Comment
  UCD17678  Rubus armeniacus H. Olmo; T. S. Mallah 1953-4-3 53 65 Humboldt California. Humboldt County: Redwood Highway, on road to Williams Grove along Eel River. 6.3 miles north of Miranda. Comment
  RSA43337  Rubus laciniatus H. M. Pollard 1948-8-9 s.n. Humboldt New [near] Orleans. Comment
  HSC57115  Rubus leucodermis Overton, Butler 1979-7-25 9858 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC69888  Rubus leucodermis Thomas W. Nelson, Jane P. Nelson 1977-7-30 3664 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  HSC57020  Rubus parviflorus Overton, Butler 1979-7-24 9632 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC95871  Rubus parviflorus Will Ferrand 2001-6-17 16 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  RSA20972  Rubus spectabilis Carl B. Wolf 1937-6-15 8828 Humboldt Redwood Hwy. 1.2 mile S of Russ Grove. 61 Comment
  HSC8607  Rubus ursinus R. E. Hafenfeld 1965-5-9 5 Humboldt Near jct. of Gold Bluff Beach Rd.and Squashan Cr. Comment
  UC1334749  Rubus ursinus R. S. Woglum 1938-8-28 2041 Humboldt Trinidad Comment
  HSC58183  Rudbeckia klamathensis G. L. Clifton, Griswold 1979-8-2 12271 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC55080  Rumex acetosella G. L. Clifton, Griswold 1979-7-31 11715 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  SEINET200758  Rumex acetosella J. P. Tracy 1906-4-22 2414 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC1541398  Rumex acetosella W. K. Parks Jun 1932 Humboldt vicinity Trinidad Comment
  HSC17578  Rumex acetosella Allan R. Marshall 1962-5-22 30 Humboldt Back of Wildlife Building, HSU campus 30 Comment
  HSC45490  Rumex acetosella Maralyn O'Meara 1972-6-8 101 Humboldt Along Bald Hills Rd. 18 mi. E of junction with Hwy. 101 Comment
  RSA275410  Rupertia physodes Thomas W. Nelson, Jane Nelson, A. P. Nelson 1977-7-1 3573 Humboldt Along road 2S08 below Goat Hill. 1524 Comment
  UCD92343  Rytidosperma penicillatum Ray Evans 1956-7-19 s.n. Humboldt Bear River, 3 miles east of Capetown. Comment
  UCD98453  Sagina maxima subsp. crassicaulis Joseph P. Tracy 1947-9-1 17927 Humboldt Big Lagoon. 6 Comment
  CAS-BOT-BC129887  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 270 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC129896  Salix bonplandiana Joseph P. Tracy 1932-4-23 9835 Humboldt South Fork of Eel River, between Miranda and Redway - North Coast Ranges 91 Comment
  CAS-BOT-BC129898  Salix bonplandiana Joseph P. Tracy 1933-6-9 12529 Humboldt Shively - Northern Coast Ranges 30 Comment
  CAS-BOT-BC103809  Salix exigua Joseph P. Tracy 1932-4-17 9798 Humboldt Eel River, Alton to Fortuna 15 Comment
  CAS-BOT-BC103821  Salix exigua Harold E. Parks 1931-5-14 0961 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CHSC9646  Salix exigua E. L. Smith 1971-8-17 1017 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  SD989  Salix exigua var. hindsiana Harold E. Parks, Joseph P. Tracey 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  CAS-BOT-BC104109  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01248 Humboldt floodplain of Eel River at Fernbridge Comment
  CAS-BOT-BC104112  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01336 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  RSA0038361  Salix hindsiana var. leucodendroides Harold E. Parks 1931-8-25 01061 Humboldt Blue Slide, Van Duzen River. 90 Comment
  CAS-BOT-BC107711  Salix hookeriana L. R. Abrams; G. T. Benson 1924-5-17 10734 Humboldt Eureka Comment
  CAS-BOT-BC107737  Salix hookeriana Jim Davis 1933-4-25 4 Humboldt Around Eureka Comment
  CAS-BOT-BC107773  Salix hookeriana Harold E. Parks; Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon, Trinidad Comment
  HSC19966  Salix hookeriana J. P. Tracy, H. E. Parks Apr 1923 7923 Humboldt Little River Lagoon Comment
  HSC90193  Salix hookeriana Jean Hanson 1980-3-8 10 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  JEPS12965  Salix hookeriana Joseph P. Tracy 1931-8-23 9617 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  JEPS73316  Salix hookeriana Annetta M. Carter 1934-8-17 721 Humboldt 35 mi n Eureka (e shore of Big Lagoon) Comment
  POM219284  Salix hookeriana H. E. Parks 1931-08 1053 Humboldt Little River Lagoon. 0 Comment
  RSA171962  Salix hookeriana Robert F. Thorne 1957-9-2 18987 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC1173589  Salix hookeriana Joseph P. Tracy 1938-6-16 15941 Humboldt Trinidad; streambank facing ocean 3 Comment
  UC1225776  Salix hookeriana Joseph P. Tracy 1948-4-4 17959 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC1225926  Salix hookeriana Joseph P. Tracy 1947-6-28 17754 Humboldt Bridgeville Van Duzen River 198 Comment
  UC146208  Salix hookeriana J. P. Tracy 1904-4-3 2011 Humboldt Immediate vicinity of Eureka 0 Comment
  UC146209  Salix hookeriana J. P. Tracy 1905-11-5 2399 Humboldt Immediate vicinity of Eureka 0 Comment
  UC176176  Salix hookeriana Joseph P. Tracy 1913-9-21 4413 Humboldt Humboldt Bay Northern Coast Region (dunes of ocean beach) Comment
  UC469124  Salix hookeriana Joseph P. Tracy 1929-4-7 8531 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC469128  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC469129  Salix hookeriana Joseph P. Tracy 1931-8-23 9616 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC481350  Salix hookeriana Harold E. Parks 1931-5-12 954 Humboldt Samoa Humboldt Bay Comment
  UC512004  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1231 Humboldt 1 1/2 mi e Alton (floodplain of Van Duzen R.) 30 Comment
  UCD111037  Salix hookeriana Linda M. Barker 1976-4-13 1383 Humboldt 3 miles west of Arcata. Comment
  UC198592  Salix laevigata Joseph P. Tracy 1916-6-19 4722 Humboldt near Forks of Dobbyn Creek; Northern Coast Ranges 182 Comment
  UC490517  Salix laevigata var. congesta Joseph P. Tracy 1932-5-22 10122 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  HSC37877  Salix lasiandra Thomas W. Nelson 1976-3-22 2279 Humboldt Cooper's Gulch near Franklin Elementary School Comment
  UC469476  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1931-11-8 9744 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  CAS-BOT-BC125221  Salix lasiandra var. lasiandra Harold E. Parks; Joseph P. Tracy 1931-5-17 0966 Humboldt Mouth of Willow Creek at Trinity River, on banks of Willow Creek 150 Comment
  HSC96574  Salix lasiandra var. lasiandra Gordon Leppig 2003-2-20 1807 Humboldt Eureka Slough, Cooper Gulch 5 Comment
  CAS-BOT-BC107019  Salix lasiolepis Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01233 Humboldt On floodplain of the Van Duzen River, 1 1/2 miles east of Alton 30 Comment
  CAS-BOT-BC107103  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt Redwood Creek, at Berry's 274 Comment
  CAS-BOT-BC107603  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-12 1236 Humboldt Gravelly floodplain of the Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107614  Salix lasiolepis Harold E. Parks 1933-2-26 10912 Humboldt Miranda, south fork of Eel River 121 Comment
  CAS-BOT-BC107643  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt On open grassy slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  HSC19991  Salix lasiolepis A. Sylvester, R. Spellenberg, D. Sutherland 1966-3-27 1357 Humboldt 1.5 mi. E of Blue Lake on Hwy. 299 Comment
  HSC98772  Salix lasiolepis Cara Witte 2008-7-7 842 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  JEPS13836  Salix lasiolepis Joseph P. Tracy 1926-8-12 7760 Humboldt at Berry's Redwood Creek; Northern Coast Ranges 274 Comment
  POM161044  Salix lasiolepis Joseph P. Tracy 1926-8-12 7758 Humboldt Redwood Creek. At Berry's. Comment
  UC469432  Salix lasiolepis Joseph P. Tracy 1931-10-3 9701 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC490542  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1932-8-13 10343 Humboldt 3 mi. e. Trinidad (on Luffenholz Creek); Northern Coast Region, Luffenholz Creek 60 Comment
  UC490545  Salix lasiolepis Joseph P. Tracy 1932-4-24 9807 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC490547  Salix lasiolepis Joseph P. Tracy 1932-4-24 9806 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC492345  Salix lasiolepis Harold E. and Susan T. Parks 1932-4-12 1112 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC506388  Salix lasiolepis Joseph P. Tracy 1932-8-21 10357 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (on lower western foothills of mt.) 457 Comment
  UC506393  Salix lasiolepis Joseph P. Tracy 1932-6-19 10243 Humboldt Buck Mountain Northern Coast Ranges (nw slope, lower foothills) 762 Comment
  UC512008  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1233 Humboldt 1 1/2 mi E of Alton ( Van Duzen River) 30 Comment
  UC512041  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1322 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC519345  Salix lasiolepis Joseph P. Tracy 1933-10-22 13102 Humboldt Lack Pond Trinity River Valley (opposite mouth of Willow Creek) 152 Comment
  UC519347  Salix lasiolepis Joseph P. Tracy 1933-10-15 13092 Humboldt along S. Fork Eel R. near Miranda; North Coast Ranges, S. Fork Eel R. 91 Comment
  CAS-BOT-BC107410  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-5-13 3148 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC125611  Salix melanopsis Harold E. Parks 1931-5-14 0956 a Humboldt Van Duzen River above Bridgeville 300 Comment
  CAS-BOT-BC125635  Salix melanopsis Harold E. Parks 1931-5-14 0960 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC125637  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 284 Humboldt East of Redwood Highway, 6 km. south of Alton 20 Comment
  JEPS14755  Salix melanopsis Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10095 Humboldt Trinity River near Willow Creek; North Coast Ranges 152 Comment
  SJSU251  Salix melanopsis H. E. Parks & J. P. Tracy 1931-5-17 972 Humboldt mouth of Willow Cr at Trinity R 152 Comment
  UC1196565  Salix melanopsis H. E. Parks and Joseph P. Tracy 1931-3-26 9299 Humboldt Van Duzen R. near Alton; Northern Coast Ranges, Van Duzen R. 30 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
  UC512011  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1234 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  RSA0034666  Salix melanopsis var. bolanderiana H. P. Bracelin 1931-5-2 283 Humboldt East of Redwood Highway, 6 km. south of Alton. 20 Comment
  CAS-BOT-BC129157  Salix scouleriana Joseph P. Tracy 1937-2-21 15230 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  JEPS14777  Salix scouleriana Joseph P. Tracy 1933-4-2 10956 Humboldt Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 304 Comment
  SBBG57985  Salix scouleriana H. E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  SBBG57987  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge, Van Duzen River 450 Comment
  UC1173626  Salix scouleriana Joseph P. Tracy 1937-3-21 15237 Humboldt Van Duzen R. at Grizzly Creek; Van Duzen R. 91 Comment
  CAS-BOT-BC128961  Salix sitchensis Joseph P. Tracy 1932-7-18 10724 Humboldt Rocky exposed places, head of Brett Hole - Klamath Mountains 1828 Comment
  CAS-BOT-BC128994  Salix sitchensis Joseph P. Tracy 1934-3-25 13168 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC90381  Salix sitchensis Jean Hanson 1980-3-8 11 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90748  Salix sitchensis Jean Hanson 1980-3-8 21 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90749  Salix sitchensis Jean Hanson 1980-3-8 22 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96598  Salix sitchensis Gordon Leppig 2003-2-20 1811 Humboldt Eureka, W end of W Hawthorne St. 3 Comment
  JEPS38498  Salix sitchensis Milo S. Baker 1923-7-23 89 Humboldt Manning Creek Comment
  RSA171961  Salix sitchensis Robert F. Thorne 1957-9-2 18989 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC1196713  Salix sitchensis Joseph P. Tracy 1940-2-25 16521 Humboldt vicinity of Carlotta Carlotta 30 Comment
  UC1196718  Salix sitchensis Joseph P. Tracy 1932-5-14 10063 Humboldt Scotia Bluffs Northern Coast Ranges, Scotia Bluffs 30 Comment
  UC526713  Salix tracyi Joseph P. Tracy 1934-3-25 13167 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC526722  Salix tracyi Joseph P. Tracy 1934-3-25 13166 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC57142  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-26 9926 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC58198  Sambucus nigra subsp. caerulea G. L. Clifton, Griswold 1979-8-2 12300 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC36228  Sambucus racemosa var. racemosa John Rehling 1975-4-21 53 Humboldt Along Jolly Giant Creek behind HSU campus. 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
  RSA254741  Sanicula crassicaulis Thomas W. Nelson, James Nelson 1973-5-28 943 Humboldt McKeown Ranch north of Dinsmore. Comment
  UCD127966  Sanicula crassicaulis Linda M. Barker 1976-6-1 1540 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC102543  Sanicula graveolens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1529 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1197091  Sanicula graveolens Joseph P. Tracy 1932-7-13 10528 Humboldt Trinity Summit, at Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC1197092  Sanicula graveolens Joseph P. Tracy 1935-7-14 14069 Humboldt Grouse Mountain 1524 Comment
  UC1541383  Sanicula tuberosa W. K. Parks July 1933 Humboldt Buck Mountain Comment
  UC1197082  Sanicula tuberosa Joseph P. Tracy 1908-6 2715 Humboldt Northern Coast Ranges, at foot of Buck Mt., on Van Duzen River Van Duzen River; Northern Coast Ranges, Buck Mt., Van Duzen River 762 Comment
  CHSC68459  Schoenoplectus acutus var. occidentalis L. P. Janeway 1987-7-30 2535 Humboldt Dry Lagoon. Middle of the lagoon. 3 Comment
  HSC7445  Schoenoplectus americanus J. W. Johnson 1962-4-18 1271 Humboldt Between the Mad River mouth and the Hunt Farm, Samoa Peninsula Comment
  POM126085  Schoenoplectus maritimus Joseph P. Tracy 1924-9-28 6907 Humboldt Centerville, northern coast ranges 3 Comment
  UCSB23755  Schoenoplectus pungens Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samosa on peninsula; on western side of Humboldt Bay Comment
  CAS-BOT-BC111704  Schoenoplectus pungens var. badius Doris K. Kildale 1927-6-25 3550 Humboldt Shelter Cove, coastal Comment
  RSA53822  Schoenoplectus tabernaemontani Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC110848  Scirpus congdonii Doris K. Kildale 1931-5-10 10672 Humboldt Snow Camp Comment
  HSC58790  Scirpus microcarpus G. L. Clifton 1979-7-31 11362 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  SEINET3914801  Scirpus microcarpus Thomas W. Nelson, James Nelson 1976-7-28 3048 Humboldt Flora of the Lassics. At Alder Springs along 2S08.; 0 1554 Comment
  HSC48382  Scirpus microcarpus D. H. Norris May 1970 12465 Humboldt Gold Bluff Beach, Prairie Creek Redwoods State Park Comment
  RSA246671  Scrophularia californica var. californica Robert F. Thorne, Percy C. Everett 1965-8-9 35314 Humboldt Clam Beach County Park. 3 Comment
  HSC14396  Scutellaria antirrhinoides H. E. Parks, J. P. Tracy 1934-6-27 11061 Humboldt Grouse Mtn. 1433 Comment
  RSA12446  Scutellaria antirrhinoides Carl B. Wolf 1934-7-1 5847 Humboldt Along Eel River and Redwood Highway, 1.2 mi. S of F. K. Lane Grove. 61 Comment
  UC25790  Scutellaria antirrhinoides Chesnut and Drew July 1888 Humboldt Campbells Comment
  UC154015  Scutellaria californica Joseph P. Tracy 1908-6 2817 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS62896  Scutellaria californica Joseph P. Tracy 1937-7-19 15453 Humboldt Buck Mountain 914 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
  HSC79343  Sedum laxum subsp. heckneri D. K. Imper 1983-7-28 Humboldt Six Rivers National Forest, Orleans, off FS 12N20 near Bald Mtn. Comment
  HSC82131  Sedum laxum subsp. heckneri D. K. Imper 1985-6-18 Humboldt N and S of Whiteys Peak 1707 Comment
  UC1198837  Sedum laxum subsp. heckneri Joseph P. Tracy 1933-7-25 12899 Humboldt Grouse Mountain 1524 Comment
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Aug 17 2011
  UC667085  Sedum laxum subsp. heckneri Joseph P. Tracy 1933-7-25 12899 Humboldt Grouse Mountain 1524 Comment
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Aug 17 2011
  UC667087  Sedum laxum subsp. heckneri Joseph P. Tracy 1927-5-15 8055 Humboldt near Hoopa Valley (Supply Creek, on barren rocky bluffs); Northern Coast Ranges, near Hoopa Valley 457 Comment
  CAS-BOT-BC64750  Sedum oregonense Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  JEPS25682  Sedum spathulifolium P. C. Hutchison 1961-5-21 2005 A Humboldt hiway US 101, 1/2 mi s Holbrook Grove boundary (1/2 mi n of Redway, 3 1/4 mi n of Garberville, rocks e of hiway facing nw); s of Holbrook Grove boundary, n of Redway, n of Garberville 167 Comment
  SEINET10569166  Selaginella oregana Joseph P. Tracy 1933-2-19 Tracy 10903 Humboldt North Fork of Mad River, above Korbel. On rocks in sheltered places on river bank. 61 Comment
  SEINET200600  Selaginella oregana J. P. Tracy 1928-4-29 8426 Humboldt Prairie Creek 153 Comment
  UC519317  Selaginella oregana Joseph P. Tracy 1933-2-19 10903 Humboldt above Korbel (N. Fork Mad River); North Coast Ranges 60 Comment
  UC1284956  Senecio blochmaniae R. F. Hoover 1946-10-29 6526 Humboldt near Callender railroad siding Comment
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Mar 19 2007
  HSC100446  Senecio mendocinensis Carl C. Marshall Jul 1887 433 Humboldt Spruce Grove. Comment
  HSC57876  Senecio triangularis Overton, Butler 1979-7-31 11412 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC58178  Senecio triangularis G. L. Clifton, Griswold 1979-8-2 12262 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC70462  Senecio triangularis Gail Newton 1980-7-20 1630 Humboldt Near Bell Swamps 1426 Comment
  RSA12546  Senecio triangularis C. B. Wolf 1934-7-2 s.n. Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC67893  Senecio vulgaris J. P. Smith 1973-5-26 6840 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET11802700  Senecio vulgaris J. P. Tracy 1943-1 17454 Humboldt Eel River Bar at mouth of Van Duzen, near Alton Comment
  CAS-BOT-BC85835  Sequoia sempervirens Dr. A. Kellogg; W. G. W. Harford 1868-1-1 960 Humboldt unspecified Comment
  CAS-BOT-BC85845  Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-11-1 s.n. Humboldt On flood plain of the Founders' Grove, Humboldt Redwoods State park Comment
  HSC34728  Sequoia sempervirens R. E. Cooksey Sep 1972 54 Humboldt Between Miranda and Phillipsville on Avenue of the Giants 30 Comment
  JEPS46746  Sequoia sempervirens Willis G. Corbitt 1931-4-8 Humboldt Scotia Comment
  MACF022873  Sequoia sempervirens Trudy R. Ericson 1978-9-3 964 Humboldt 3 mi. east of Carlotta on St. 36 60 Comment
  RSA175208  Sequoia sempervirens Robert F. Thorne 1957-9-2 18996 Humboldt Burlington State Park, just S of Weott. Comment
  UC667964  Sequoia sempervirens Joseph P. Tracy 1937-2-21 15231 Humboldt near Grizzly Creek; Van Duzen River 91 Comment
  CAS-BOT-BC364785  Sericocarpus oregonensis subsp. oregonensis Henry M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Van Fleet place, Orleans region Comment
  HSC34944  Sherardia arvensis Scott M. Kruse 1975-4-6 1 Humboldt H.B.M. Graham Rd., Bayside 4 Comment
  CAS-BOT-BC205571  Sidalcea malachroides Joseph P. Tracy 1938-6-7 15860 Humboldt Canyon Creek, 5 miles SE of Korbel 152 Comment
  HSC16013  Sidalcea malachroides E. W. Styskel 1963-5-16 29 Humboldt 3 mi. SE of Korbel, Snow Camp Rd. 290 Comment
  HSC69889  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane Nelson 1977-7-30 3663 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  HSC75946  Sidalcea malviflora subsp. nana Overton, Butler 1979-7-24 9725 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC81675  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane Nelson 1980-7-13 6057 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  POM160275  Sidalcea malviflora subsp. nana Joseph P. Tracy 1926-6-20 s.n. Humboldt Horse Mountain. 1524 Comment
  HSC23746  Sidalcea oregana Tim Baroni 1971-7-6 120 Humboldt 10 mi. S of Ferndale on Mattole Rd. Comment
  JEPS67257  Sidalcea oregana subsp. eximia Joseph P. Tracy 1917-9-1 4831 Humboldt Murphy meadow Northern Coast Range, , Murphy meadow (Bald Mountain) 1066 Comment
  UC198575  Sidalcea oregana subsp. eximia Joseph P. Tracy 1917-9-1 4831 Humboldt Murphy meadow Northern Coast Ranges, Murphy meadow (Bald Mountain) 1066 Comment
  UC161054  Silene californica Harley P. Chandler May, 1901 1259 Humboldt North Coast Ranges, Redwood Belt North Coast Ranges 152 Comment
  UC1541416  Silene californica H. E. Parks May 1930 Humboldt near Carlotta; near Carlotta Comment
  UC8432  Silene campanulata subsp. campanulata Bolander 1866-1 6517 Humboldt Red Mountain Comment
  CAS-BOT-BC174881  Silene campanulata subsp. glandulosa Volney Rattan 1903-1-1 s.n. Humboldt Hoopa Valley Comment
  HSC74195  Silene campanulata subsp. glandulosa M. A. Baker 1980-7-23 3137 Humboldt Near Orleans Mtn. 1859 Comment
  HSC104081  Silene campanulata subsp. glandulosa S. Carothers 2001-6-20 Humboldt Six Rivers National Forest; Lassics Botanical Area, below Rd. 1S11 1579 Comment
  HSC68009  Silene gallica J. P. Smith 1970-6-7 3804 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  CAS-BOT-BC389063  Silene laciniata subsp. californica Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC4164  Silene laciniata subsp. californica D. E. Anderson 1965-5-15 3709 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC44729  Silene laciniata subsp. californica Maralyn O'Meara 1972-6-8 78 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  UC668193  Silybum marianum Joseph P. Tracy 1938-7-6 16026 Humboldt Big Lagoon 12 Comment
  HSC91612  Sinapis arvensis E. Mackey 1986-12-18 Humboldt Patrick's Point State Park, along Patrick's Point Drive Comment
  JEPS53885  Sisymbrium altissimum W. L. Jepson 1932-8-8 16530 Humboldt hill above Weott Comment
  HSC79467  Sisyrinchium bellum Kenneth Clark 1981-5-2 1357 Humboldt 0.5 mi. W of Dead Man's Gulch 152 Comment
  UC1103493  Smilacina stellata Joseph P. Tracy 1938-7-7 16039 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC236441  Solanum aviculare Doris K. Kildale 1925-9-28 1357 Humboldt Samoa Peninsula Comment
  HSC21296  Solanum aviculare A. H. Teshima 1963-4-20 21 Humboldt Moonstone Beach area Comment
  NY821311  Solanum laciniatum H. H. Smith 1911-6-17 3857 Humboldt Samoa Comment
  RSA246652  Solanum laciniatum Robert F. Thorne, Percy C. Everett 1965-8-5 35160 Humboldt Samoa Dunes. Edge of Humboldt Bay. 3 Comment
  CDA41195  Solanum parishii J. Breton & A. Livingtston 2005-6-15 12 Humboldt Northeast of Grouse Mountain. Comment
  CHSC97982  Solanum parishii J. Breton; A. Livingston 2005-6-15 12 Humboldt NE of Grouse Mtn. UTM 0444876, 4511301. On rock outcrop. 1327 Comment
  BLMAR139  Solanum xanti Donald Hazlett 1994-6-7 139 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC365431  Solidago elongata Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1070251  Solidago elongata H. L. Person 1932-7-19 Humboldt Lindsay Creek Eureka Quad, Lindsay Creek Comment
  UCR48861  Solidago occidentalis R. D. Goeden, Don W. Ricker 1987-9-2 7 B Humboldt Carlotta, roadside on state Hwy 36 Comment
  BLMAR705  Solidago spathulata Jennifer Anthony-Wheeler 1994-9-8 705 Humboldt Samoa/manilla dunes, growing in every dune mat area in the samoa rare plant protection area 12 Comment
  JEPS120527  Solidago spathulata B. Castro and L. P. Janeway 2004-9-10 1474 Humboldt North Coast. South Spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site; on other side of South Spit Road from the Humboldt Bay mudflats. Comment
  UC1409170  Solidago spathulata Robert F. Thorne and P. Everett 1965-8-5 35164 Humboldt Samoa Dunes 3 Comment
  UCR122358  Solidago spathulata var. spathulata George K. Helmkamp, E. A. Helmkamp 2001-7-8 7023 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  LA203960  Solidago velutina subsp. californica Joseph P. Tracy; 1937-9-5 15682 Humboldt Trinty River Valley, at Willow Creek 152 Comment
  HSC43414  Sonchus asper R. Sutherland 1978-2-18 3 .18278 Humboldt S side mouth of Mattole River 9 Comment
  HSC79453  Sonchus asper Kenneth Clark 1980-4-18 605 Humboldt Along access trail to Deadman's Gulch. 46 Comment
  HSC67888  Sonchus oleraceus J. P. Smith 1973-5-26 6862 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA430519  Sonchus oleraceus Lyman Benson 1929-7-12 1796 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  HSC102588  Sorbus scopulina M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1575 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC21344  Sparganium angustifolium Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  SEINET3825670  Sparganium eurycarpum Unknown 1912-8-20 2987 Humboldt Lower eal River Valley Comment
  HSC89257  Spartina alterniflora Karen Kovacs 1989-10-26 Humboldt .5 mi. N of Samoa-Eureka bridge, E of Hwy. 255, Humboldt Bay Comment
  CAS-BOT-BC235370  Spartina densiflora Ken Berg 1986-7-28 637 Humboldt Humboldt Bay, Arcata; foot of I Street Comment
  POM313133  Spartina densiflora Malcolm A. Nobs, S. Galen Smith 1949-8-3 1180 Humboldt Marshes near mouth of Elk River, ca. 4 mi south of Eureka on Hwy 101 Comment
  HSC68008  Spergula arvensis J. P. Smith 1970-6-7 3805 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC90396  Spergularia macrotheca Jean Hanson 1980-8-28 118 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. Across from the Guard Station. Comment
  UC1281052  Spiraea douglasii H. E. McMinn Jul 1922 289 Humboldt n of Scotia Comment
  HSC41323  Spiraea splendens var. splendens Brad Klipfel 1974-8-2 520 Humboldt Horse Mtn. Comment
  RSA249514  Spiranthes romanzoffiana Robert F. Thorne, Percy C. Everett 1965-8-5 35154 Humboldt Samoa Dunes. 3 Comment
  HSC100151  Spirodela polyrhiza M. A. Ericksen 1979-5-29 308 Humboldt Northern-most of Clam Beach ponds 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
  HSC100152  Spirodela punctata M. A. Ericksen 1979-5-29 308 Humboldt Northern-most of Clam Beach ponds Comment
  JEPS63051  Stachys ajugoides var. rigida Joseph P. Tracy 1936-8-7 15091 Humboldt head Little Hors-Linto Creek; Trinity Summit 1371 Comment
  JEPS63064  Stachys ajugoides var. rigida W. L. Jepson 1934-5-7 16684 Humboldt Dyerville Comment
  UC577327  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-8 14874 Humboldt Trinidad 3 Comment
  UC668218  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15954 Humboldt Cape Mendocino 152 Comment
  UCLA71166  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  UC668219  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-15 15937 Humboldt vicinity Carlotta 30 Comment
  RSA26844  Stachys chamissonis I. L. Wiggins 1940-7-10 9489 Humboldt Table Bluff Comment
  RSA20856  Stachys rigida subsp. quercetorum Carl B. Wolf 1937-6-18 8896 Humboldt 1/2 mile S of Fortuna. 15 Comment
  UCR84759  Stachys rigida var. quercetorum Kathy Harper 1992-5-14 s.n. Humboldt Coast Range, Van Duzen River, c. 1.5 mi. west of Bridgeville on State Hwy 36 195 Comment
  UC161059  Stellaria crispa Joseph P. Tracy 1901-4-26 1048 Humboldt Humboldt Hill Northern Coast Region, Humboldt Bay Region (Humboldt Bay Region) 0 Comment
  UC162629  Stellaria crispa Joseph P. Tracy 1911-7-5 3312 Humboldt near mouth of Willow Creek (tributary of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  HSC4279  Stellaria media Jack Rockwell 1962-4-5 30 Humboldt N bank of Van Duzen River, E of Hwy. 101 Comment
  HSC98400  Stellaria media R. D. Modafferi 1965-4-8 3 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  HSC99013  Stipa lemmonii var. lemmonii Cara Witte 2007-6-7 231 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC38490  Stipa nelsonii subsp. dorei D. E. Anderson, J. P. Smith 1971-6-18 - 1095 Humboldt Horse Mtn. Comment
  HSC103087  Streptanthus tortuosus Sydney Carothers 2014-6-22 7 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  SDSU19192  Streptanthus tortuosus Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3014 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 1.7 miles south. Roadcut, north side of road. Ca. 1.4 aerial miles west-northwest of Horse Mtn. Radio Tower. 980 Comment
  UC302043  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1926-5-15 7477 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC57036  Streptopus amplexifolius Overton, Butler 1979-7-24 9671 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1103498  Streptopus amplexifolius var. americanus Joseph P. Tracy 1936-8-7 15094 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  JEPS40849  Symphyotrichum bracteolatum Joseph P. Tracy 1921-9-4 5954 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley, South Fork of T 152 Comment
  CAS-BOT-BC98975  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1216 Humboldt Trinity Summit near Ranger Station 1828 Comment
  UC165029  Symphyotrichum subspicatum J. P. Tracy 1900-9-3 936 Humboldt immediate vicinity of Eureka 0 Comment
  SEINET12275944  Symphytum asperum J. P. Tracy 1943-1 17448 Humboldt near Iverson dairy ranch, Arcata Comment
  JEPS26263  Synthyris reniformis Joseph P. Tracy 1924-2-10 6601 Humboldt Bald Mountain at Hungry Hollow; Bald Mountain 762 Comment
  POM126512  Synthyris reniformis Joseph P. Tracy 1922-4-30 6039 Humboldt Brannan Mtn. Along road between Three Creeks and mouth of Willow Creek. 915 Comment
  UC27647  Synthyris reniformis C. C. Marshall 1887-1-7 Humboldt hills near Mad River 609 Comment
  CAS-BOT-BC376729  Tanacetum bipinnatum Peter H. Raven 1962-8-31 18080 Humboldt South end of Big Lagoon Comment
  CAS-BOT-BC376833  Tanacetum vulgare Carl B. Wolf 1937-9-12 9330 Humboldt Big Lagoon, So. side along Redwood Highway 6 Comment
  HSC70325  Taraxacum officinale M. A. Baker 1980-6-8 1880 Humboldt Near Buck Flat. 1554 Comment
  HSC21572  Tauschia kelloggii Francis Winter 1960-4-24 Humboldt Hog Ranch Ridge, 8 mi. NW of Hoopa Indian Reservation 610 Comment
  HSC1597  Taxus brevifolia Francis Winter 1960-5-7 Humboldt Pine Ridge Summit, Hoopa Indian Reservation 671 Comment
  SBBG319  Taxus brevifolia H. and M. Dearing 1939-6-23 3691 Humboldt E fork of Willow Crk 609 Comment
  UC502917  Taxus brevifolia Joseph P. Tracy 1927-3-27 7865 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 762 Comment
  UC667973  Taxus brevifolia Joseph P. Tracy 1936-9-20 15186 Humboldt along Capoe Creek; Humboldt State Redwood Park 91 Comment
  HSC56241  Tellima grandiflora Walter Overton 1979-8-1 12338 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  HSC79487  Tellima grandiflora Kenneth Clark 1980-3-23 536 Humboldt Along S Fork of Dead Man's Gulch 69 Comment
  SD88395  Tellima grandiflora Darley F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville Comment
  CAS-BOT-BC399767  Thalictrum polycarpum Alice Eastwood 1921-7-21 10669 Humboldt Vanduzen [Van Duzen] River, on the road Comment
  HSC64140  Thermopsis macrophylla J. O. Sawyer, J. P. Smith, J. Cole 1977-7-2 3050 Humboldt Rd. 11N17 between Dagsaw Springs and Divide Lake 793 Comment
  UC1129924  Thermopsis macrophylla var. macrophylla A. E. Wieslander 1931-5-19 7 Humboldt near Orleans; Klamath National Forest, Hoopa Quadrangle Comment
  CHSC96779  Thlaspi montanum P. Haggard 2004-8-18 1285929 Humboldt North Coast Ranges. Friday Ridge Rd, Willow Creek. Comment
  HSC1299  Thuja plicata Francis Winter 1960-5-6 Humboldt 1.0 mi. W of Blue Lake, Hwy. 299 Comment
  NY17200  Thuja plicata I. L. Wiggins 1955-7-31 13594 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  OBI36631  Thuja plicata David J. Keil 1983-7-2 17308 Humboldt Ca. 10.5 mi E of jctn with US 101 along SR 299 Comment
  RSA126263  Thuja plicata I. L. Wiggins 1955-7-31 13594 Humboldt Hillside 9 miles east of Arcata along Highway 299 Comment
  HSC100464  Thysanocarpus curvipes Carl C. Marshall Apr 1887 370 Humboldt Hoopa Valley. 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
  HSC55614  Tiarella trifoliata var. unifoliata Overton, Butler 1979-7-23 9503 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC64218  Tiarella trifoliata var. unifoliata J. O. Sawyer, M. A. Ericksen 1979-6-23 3383 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  SBBG2855  Tiarella trifoliata var. unifoliata H. and M. Dearing 1939-5-15 3703 Humboldt E fork of Willow Crk 762 Comment
  UC303174  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1923-6-20 6314 Humboldt White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  UC677699  Tiarella trifoliata var. unifoliata C. C. and S. K. Harris 1936-6-16 660 Humboldt Redwood forest on Yager Road from Carlotta 152 Comment
  HSC100653  Tiarella unifoliata Carl C. Marshall Jun 1886 323 Humboldt Trail E of Hoopa. Comment
  CAS-BOT-BC447608  Tolmiea menziesii Volney Rattan 1903-6-9 s.n. Humboldt Long Bar, Klamath Comment
  UC147861  Tonella tenella Joseph P. Tracy 1908-6 2736 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  HSC95682  Toxicodendron diversilobum Steven Lee 2004-4-25 25 Humboldt From Hwy. 299, take South Fork Rd. to County Rd. 341. River access trail is at the end of the road. Comment
  JEPS63915  Toxicodendron diversilobum W. L. Jepson 1932-7-27 16429 Humboldt on rd. to Bull Creek Dyerville Comment
  SEINET12238542  Toxicodendron diversilobum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -300 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  SEINET3071157 Image available Tracyina rostrata J. P. Tracy 1916-6-20 4735 Humboldt Alder Point Comment
  HSC98085  Tragopogon dubius Cara Witte 2007-7-3 400 Humboldt National Forest 1. 2 miles south from intersection with 5N04. 1561 Comment
  HSC18246  Trautvetteria caroliniensis J. P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mtn., Trinity Summit Range, NE of Hawkins Bar 1280 Comment
  UC577370  Trichostema lanceolatum Joseph P. Tracy 1934-8-19 13595 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1197230  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1906-6-10 2488 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1223472  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1943-5-23 17426 Humboldt e Redwood Creek (on Trinity Highway); Berry's Mountain Comment
  BLMAR385  Trifolium angustifolium Jennifer Anthony-Wheeler 2004-6-28 385 Humboldt King range, Mouth of Mattole River, along road in willow thickets 36 Comment
  HSC100527  Trifolium barbigerum Carl C. Marshall Jun 1885 65 Humboldt No data. Comment
  SEINET6934847  Trifolium barbigerum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  UC1223496  Trifolium bifidum var. bifidum Joseph P. Tracy 1935-5-25 13903 Humboldt betw forks of creek; Dobbyn Creek Comment
  UC1541261  Trifolium breweri Harold E. Parks May 1935 4997 Humboldt Egg Point Trinidad Comment
  HSC71452  Trifolium campestre J. P. Smith 1973-5-26 6811 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC33569  Trifolium cyathiferum Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UCD108809  Trifolium dichotomum Joseph P. Tracy 1933-5-20 12234 Humboldt Cape Mendocino. Mouth of Domingo Creek. South of point of the Cape. Comment
  UC149767  Trifolium dubium Harley P. Chandler May 1901 1127 Humboldt Eureka North Coast Ranges, Humboldt Bay 30 Comment
  HSC99714  Trifolium eriocephalum subsp. eriocephalum Glenn W. K. Shelton 2010-7-10 14 Humboldt Due N of Buck Mtn. on FS Rd. 1N08A 1159 Comment
  UC16713  Trifolium eriocephalum var. eriocephalum J. Burtt Davy 1899-6-7 5385 Humboldt near Harris; North Coast Ranges Comment
  UC495651  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-21 8770 Humboldt Larrabee valley Northern Coast Ranges 701 Comment
  UC1223464  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1949-8-4 18415 Humboldt toward Trinity Summit (Mud Springs, on rd from Hoopa) 1341 Comment
  HSC100533  Trifolium filipes Carl C. Marshall May 1886 411 Humboldt Dobbyn's Creek. Comment
  UC1223451  Trifolium fragiferum Joseph P. Tracy 1934-7-27 13490 Humboldt mouth Mad River Comment
  HSC57305  Trifolium longipes subsp. oreganum Griswold, Butler 1979-7-10 6210 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  HSC98891  Trifolium longipes subsp. shastense Cara Witte 2008-7-1 779 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  HSC40939  Trifolium microcephalum Linda M. Barker 1976-6-1 1558 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC71633  Trifolium microcephalum J. P. Smith 1973-5-26 6878 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC45138  Trifolium microcephalum R. Sutherland 1978-5-25 1 .25578 Humboldt Near the Mattole River 288 Comment
  HSC45139  Trifolium microcephalum R. Sutherland 1978-5-19 8 .19578 Humboldt 131 Comment
  UC1103448  Trifolium microcephalum Joseph P. Tracy 1929-5-5 8574 Humboldt along Sout Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1197504  Trifolium obtusiflorum Joseph P. Tracy 1914-5-30 4480 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  UC1103443  Trifolium oliganthum Joseph P. Tracy 1921-4-24 5460 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  HSC100538  Trifolium parvifolium Carl C. Marshall May 1886 225 Humboldt Arcata. Comment
  HSC95537  Trifolium repens Andrea Pickart 2002-5-24 108 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  HSC96483  Trifolium repens Gordon Leppig 1997-6-19 450 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC32427  Trifolium subterraneum Linda M. Barker 1974-5-11 175 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC34617  Trifolium subterraneum David Ferranti 1974-5-6 Humboldt Garden weed at 43601/2 Union St. Eureka Comment
  UC16781  Trifolium variegatum var. melananthum Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5342 Humboldt Harris Comment
  UC303198  Trifolium variegatum var. rostratum Joseph P. Tracy 1925-6-27 7145 Humboldt Alton Northern Coast Ranges 30 Comment
  UC1197517  Trifolium willdenovii Joseph P. Tracy 1932-6-4 10131 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  HSC31739  Trifolium willdenovii Donald Spalinger 1974-5-12 57 Humboldt Williams Ridge Rd., 1 mi. N from junction with Bald Hills Rd. 732 Comment
  UC1223313  Trifolium willdenovii Joseph P. Tracy 1950-5-6 18640 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1223318  Trifolium willdenovii Joseph P. Tracy 1942-5-16 17358 Humboldt 1 mi ne Garberville (on rd to Harris) 304 Comment
  UC303199  Trifolium willdenovii Joseph P. Tracy 1925-5-17 6967 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC27894  Trifolium wormskioldii Clifton Raymond Chesbrough 1973-6-19 64 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UC198572  Trifolium wormskioldii Joseph P. Tracy 1917-5-30 4801 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  CAS-BOT-BC451809  Triglochin maritima Carl B. Wolf 1927-8-22 784 Humboldt Big Lagoon Comment
  HSC37956  Triglochin maritima Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  POM188101  Triglochin maritima Marcus E. Jones 1931-7-16 29221 Humboldt Arcata. Comment
  HSC14173  Triglochin maritima Rollin Sparrowe 1962-5-7 19 Humboldt Comment
  HSC101807  Trillium albidum Kjirsten A. Wayman 2012-4-1 305 Humboldt Hoopa, 0.3 miles up Bair Road, near Supply Creek 168 Comment
  HSC28003  Trillium albidum Maralyn O'Meara 1972-5-29 77 Humboldt 18.6 mi. up Bald hills Rd. from junction with Hwy. 101 near Orick 915 Comment
  HSC103980  Trillium ovatum Kyle Brown 2015-4-25 41 Humboldt Arcata, Redwood Park 98 Comment
  JEPS47275  Trillium ovatum Willis G. Corbitt 1930-5-11 Humboldt Scotia Comment
  SBBG58763  Trillium ovatum R. Hartwell 1938-8-4 104 Humboldt Bull Crk Flat Grove, near Eel River Comment
  HSC15703  Trillium ovatum W. F. Nickel 1965-4-3 Humboldt 5 mi. SE of Fern Canyon in Prairie Creek Redwoods State Park, on rd. to Fern Canyon Comment
  HSC34647  Trillium ovatum Thomas Anthony 1975-4-7 1 Humboldt 0.5 mi. N of Myers Flat on Avenue of the Giants Comment
  SD112794  Trillium ovatum Darley F. Howe 1963-5-26 3557 Humboldt 3.7 miles east of Orick, on Bald Hill Road. 487 Comment
  SEINET12051379  Trillium ovatum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -289 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  HSC98910  Trillium ovatum subsp. ovatum Cara Witte 2007-5-31 164 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  HSC20852  Triphysaria eriantha subsp. eriantha S. J. Hawks 1965-5-14 56 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  HSC70582  Triphysaria pusilla Sue Sweet 1981-4-30 548 Humboldt Lanphere-Christensen Dunes Preserve, along trail N of weather station Comment
  CHSC1822  Triphysaria versicolor subsp. faucibarbata V. Holt 1941-5-30 Humboldt Comment
  UC1198040  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1912-6-30 3715 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  HSC102548  Trisetum canescens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1536 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  POM126097  Trisetum canescens Joseph P. Tracy 1903-5-22 1877 Humboldt Alder Point on Eel River, in woods. Comment
  UC905633  Trisetum canescens David D. Keck 1948-6-2 6006 Humboldt 4 mi w Willow Creek (near boundary of Six River National Forest, e side of Rocky Ridge, e of Berry's summit); Rocky Ridge 457 Comment
  UC922031  Trisetum cernuum Joseph P. Tracy 1939-4-25 16223 Humboldt Bull Creek 60 Comment
  HSC97928  Triteleia hyacinthina Cara Witte 2007-6-14 288 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  HSC68611  Triteleia laxa Jacqueline Greenleaf 1980-7-16 240 Humboldt Near Buck Mountain. 1250 Comment
  SEINET200770  Triteleia laxa Joseph P. Tracy 1927-5-30 8094 Humboldt Garberville 152 Comment
  HSC98682  Triteleia laxa Cara Witte 2008-7-10 853 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  HSC18445  Tropaeolum majus Jana Kattenhorn 1970-10-24 134 Humboldt Arcata, HSU campus, S of Harpst St. Comment
  CAS-BOT-BC85895  Tsuga heterophylla G. A. Coleman 1901-7-20 s.n. Humboldt Near Acorn Comment
  UC1585364  Tsuga heterophylla R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 Humboldt e of Arcata (on Hwy 299, 28 km e of Hwy 101); Hwy 299 360 Comment
  CAS-BOT-BC91110  Umbellularia californica Doris K. Kildale 1927-2-28 2987 Humboldt Bug Creek. Upper Mad River. 792 Comment
  HSC59566  Umbellularia californica Rick Lundquist 1979-4-22 26 Humboldt 8.4 mi. up Fickle Hill Rd. from 11th St. across from HSU observatory 610 Comment
  UC1196280  Umbellularia californica Joseph P. Tracy 1924-8-31 6844 Humboldt Klamath River at Bluff Creek Klamath River; Northern Coast Ranges, , Bluff Creek 91 Comment
  POM106056  Urtica dioica subsp. holosericea Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1225782  Urtica urens Joseph P. Tracy 1944-6-10 17476 Humboldt Eureka 30 Comment
  HSC59491  Utricularia macrorhiza M. A. Ericksen 1979-4-24 217 Humboldt Behind Fieldbrook School, in Fieldbrook Comment
  CAS-BOT-BC199320  Vaccinium ovatum Carl B. Wolf 1931-8-29 2369 Humboldt Near summit of Orick Hill on road to Weitchpec 304 Comment
  HSC104091  Vaccinium ovatum Monica Rodriguez, William A. Worley 2015-2-21 9 Humboldt Rock Creek Ranch; 8.2 mi. along South Fork Rd. from Redwood Highway 199. 131 Comment
  HSC34645  Vaccinium ovatum Thomas Anthony 1975-4-8 3 Humboldt E of HSU tennis courts on ridge facing Fern Lake from W Comment
  RSA134586  Vaccinium ovatum P. C. Everett, E. K. Balls, George B. Everett 1959-10-26 23974 Humboldt 4 mi. se from Honeydew along Old Coast Road to Ettersburg. 457 Comment
  UC1197768  Vaccinium ovatum Joseph P. Tracy 1918-5-5 4919 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC1225908  Vaccinium ovatum Joseph P. Tracy 1943-3-14 17409 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  CAS-BOT-BC199420  Vaccinium parvifolium Joseph P. Tracy 1927-6-12 8133 Humboldt Horse Mountain 1432 Comment
  UC1197763  Vaccinium parvifolium Joseph P. Tracy 1938-6-13 15900 Humboldt Horse Mountain 1432 Comment
  HSC102019  Vaccinium uliginosum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 920 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC673215  Valeriana sitchensis subsp. scouleri Lincoln Constance, Reed C. Rollins 1942-5-11 2867 Humboldt 3 mi w of East Fork of Willow Creek; North Coast Ranges Comment
  UC1239584  Valeriana sitchensis subsp. scouleri Mrs. R. D. Douglass 1919-5-8 Humboldt near Ferndale; Nothern Coast Region Comment
  HSC57994  Vancouveria hexandra G. L. Clifton, Griswold 1979-7-31 11757 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC58227  Vancouveria hexandra Walter Overton 1979-8-1 12374 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1196345  Vancouveria hexandra Joseph P. Tracy 1937-7-24 15535 Humboldt Trinity Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  HSC3376  Vancouveria hexandra J. R. Good 1964-5-15 34 Humboldt 1.25 mi. up road along Jolly Giant Creek E of HSU Comment
  JEPS33034  Vancouveria hexandra Milo S. Baker 1923-7-16 19 Humboldt 3 mi se Eureka Comment
  RSA247145  Vancouveria hexandra Gary D. Wallace 1971-7-29 948 Humboldt Prairie Creek Redwoods St. Pk. along Zig Zag Trail #3 leading W from Hwy. 101. Comment
  HSC74645  Vancouveria planipetala M. A. Baker 1980-5-17 1220 Humboldt Near Le Perron Peak 792 Comment
  HSC102030  Veratrum californicum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 932 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC1173641  Veratrum californicum var. californicum Joseph P. Tracy 1934-6-21 13244 Humboldt 2 mi s Field's Landing (at Still Ranch) 6 Comment
  UC1173642  Veratrum californicum var. californicum Joseph P. Tracy 1934-6-21 13244 Humboldt 2 mi s Field's Landing (at Still Ranch) 6 Comment
  UC429307  Veratrum californicum var. californicum P. E. Goddard 1906-6 690 Humboldt Lassick Pk. Comment
  UC302168  Veratrum californicum var. californicum Joseph P. Tracy 1925-7-5 7170 1/2 Humboldt in wet meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA12516  Veratrum insolitum Carl B. Wolf 1934-7-3 5920 Humboldt 9.5 miles form Martins Ferry on Orick Road. 305 Comment
  UC213362  Verbascum blattaria Joseph P. Tracy 1919-9-13 5199 Humboldt Trinity River Valley near Willow Creek (near Willow Creek); Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC21737  Verbena lasiostachys D. E. Anderson 1963-10-6 2880 Humboldt Mad River bed, across from Essex Junction. Comment
  HSC61771  Verbena lasiostachys Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan. 137 Comment
  UC585990  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1933-8-13 12965 Humboldt near Blue Lake (along Mad River) 15 Comment
  SD88369  Veronica americana Darley F. Howe 1972-5-7 Humboldt Trinidad Comment
  HSC69633  Veronica americana R. Kalal 1980-6-1 26 Humboldt 0.25 mi. N of Hwy. 299, at Essex turnoff 15 Comment
  RSA246672  Veronica americana Robert F. Thorne, Percy C. Everett 1965-8-9 35319 Humboldt Clam Beach County Park: along highway. 3 Comment
  SEINET10782119  Veronica americana J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13018 Humboldt North of McKinleyville off U.S. 101 (a few kilometers north of Eureka), Clam Beach County Park. Comment
  JEPS26268  Veronica arvensis Joseph P. Tracy 1906-6-10 2482 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC99376  Veronica arvensis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 25 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
  HSC101971  Veronica serpyllifolia M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 867 Humboldt Patterson Meadows 1555 Comment
  UCD20170  Veronica serpyllifolia J. M. Tucker 1948-9-5 1866 Humboldt Near Hwy 101, 3.5 miles north of Myers. Comment
  HSC58157  Vicia americana var. americana G. L. Clifton, Griswold 1979-8-2 12211 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC160967  Vicia americana var. americana Mrs. M. H. Manning May 1902 Humboldt Hupa Comment
  HSC31738  Vicia americana var. americana Donald Spalinger 1974-5-12 56 Humboldt Williams Ridge Rd., 1 mi. N from junction with Bald Hills Rd. 732 Comment
  CHSC31288  Vicia gigantea Mark Stopher 1980-6-4 102 Humboldt Along Eel River near Hwy 101 bridge. 1 Comment
  HSC49032  Vicia gigantea Patricia Shesgreen 1978-5-5 65 Humboldt 5.1 mi. S of Ferndale on Mattole Rd. Comment
  PASA270  Vicia sativa Frank W. Peirson 1923-7-11 Humboldt 7 miles north of Arcata Comment
  HSC59115  Vicia sativa subsp. sativa Terry Roth 1979-5-29 93 Humboldt Arcata, corner of Alliance Rd. and Westwood Ct. Comment
  SD131841  Vicia tetrasperma Barbara Ertter, Thomas J. Delendick 1987-5-16 6912 Humboldt Hwy 299 roadside ca 8 miles east of Arcata, 9 1/2 mi. West of Lord Ellis summit Comment
  HSC89689  Vicia villosa subsp. varia Robin Bencie, James Jones, Rich Dwerlkotte 1989-4-28 15 Humboldt Along Hwy. 299, near Korbel, 7.5 mi. E of Hwy. 101 122 Comment
  HSC3227  Vinca major Eugene Andreuccetti 1964-4-30 31 Humboldt 300 yards from Iverson Rd., along Mad River. Comment
  CAS-BOT-BC263952  Viola adunca L. B. Kildale 1926-3-30 1537 Humboldt Big Lagoon Comment
  RSA46845  Viola adunca Doris K. Kildale 1927-7-10 3723 Humboldt Gans Prairie, Bald Hills. Comment
  HSC90169  Viola cuneata Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-27 57 Humboldt Horse Mtn. Summit; Rd. 6N36, 1 mi. N of Titlow Hill Rd. 1494 Comment
  HSC21776  Viola cuneata D. E. Anderson 1965-6-1 3755 Humboldt Horse Mtn.; N-facing slope near ski lodge 1433 Comment
  JEPS80006  Viola glabella Joseph P. Tracy 1932-7-17 10682 Humboldt head of Brett Hole (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  UC668249  Viola glabella Joseph P. Tracy 1938-6-13 15912 Humboldt at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  UCD164670  Viola glabella R. John Little; C. Little 1991-5-27 6484 Humboldt Kneeland Road ca. 3 mi E of Kneeland. (Exact location unknown. Coordinates estimated by label maker). 701 Comment
  UCR138885  Viola glabella E. Bower, S. Marubayashi, E. Perry 1997-5-10 53 Humboldt Titlow Hill Road, 1.5 mi past intersection with Hwy 299 975 Comment
  HSC97173  Viola glabella Yun Chan, Renee Meyer, Sophary Yun 2007-6-13 11 Humboldt 1 mi. E of Hwy. 299 on F.S. Rd. NF1; Grouse Mtn. Meadow 1585 Comment
  RSA249390  Viola glabella D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5592 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC33151  Viola hallii Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1245 Humboldt Horse Mtn. area, W of microwave tower 1220 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
  HSC41234  Viola hallii Brad Klipfel 1974-5-8 324 Humboldt Horse Mtn.; E of the towers Comment
  RSA254792  Viola hallii Thomas W. Nelson 1974-5-7 1234 Humboldt Beside the airstrip at Kneeland Prairie. Comment
  UC1198464  Viola lobata subsp. integrifolia Joseph P. Tracy 1935-7-14 14068 Humboldt Back of Clear Lake; North Coast Ranges, Grouse Mountain. 1524 Comment
  UC668248  Viola lobata subsp. integrifolia Joseph P. Tracy 1936-8-7 15103 Humboldt head of Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1524 Comment
  HSC21831  Viola ocellata Francis Winter 1960-4-24 Humboldt 4 mi. E of Blue Lake, Hwy. 299 305 Comment
  UC249589  Viola ocellata Joseph P. Tracy 1922-4-30 6034 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  CHSC68506  Viola odorata Vernon H. Oswald 1997-4-10 8329 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  JEPS50263  Viola palustris Joseph P. Tracy 1923-5-31 6242 Humboldt Northern Coast Ranges, Eurkea Eurkea; Northern Coast Ranges, Eurkea 0 Comment
  RSA80574  Viola praemorsa subsp. praemorsa Milo S. Baker 1935-4-18 8059 Humboldt Near headwaters of S Fork of Yager, ca 2 mi W of Bridgeville. Comment
  HSC98758  Viola purpurea subsp. purpurea Cara Witte 2008-7-2 818 Humboldt Board Camp Mountain/ Tri Board Camp. Forest Service Road 4N38. 1577 Comment
  HSC104092  Viola sempervirens Monica Rodriguez, William A. Worley 2015-2-21 6 Humboldt Rock Creek Ranch; 8.2 mi. along South Fork Rd. from Redwood Highway 199. 134 Comment
  HSC89434  Viola sempervirens P. A. Daly 1984-5-8 10 Humboldt Trinidad Head 61 Comment
  SBBG4837  Viola sempervirens H. and M. Dearing 1933-5-16 1066 Humboldt N of Weott Comment
  SEINET200802  Viola sempervirens J. P. Tracy 1904-4-3 2006 Humboldt Eureka 0 Comment
  UC1103560  Viola sheltonii Joseph P. Tracy 1932-7-17 10678 Humboldt ridges e of Corral Prairie; Klamath Mountains 1828 Comment
  SEINET10918233  Vitis californica Unknown 1988-7-25 Anonymous s.n Humboldt Hwy Am [P--], Chestnut & Drew Comment
  CAS-BOT-BC198759  Vulpia bromoides Ira L. Wiggins 1932-7-25 5897 Humboldt Roadsides and fields near McKinleyville. 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
  UC196967  Vulpia myuros var. hirsuta Joseph P. Tracy 1915-5-23 4640 Humboldt Eureka; Northern Coast Region 0 Comment
  UC38479  Vulpia myuros var. hirsuta Harley P. Chandler May 1901 1120 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  UC53369  Vulpia myuros var. hirsuta M. A. H. 1896-6-2 Humboldt Eureka Comment
  CHSC63409  Whipplea modesta Vernon H. Oswald 1994-6-29 6365 Humboldt Friday Ridge Rd. (Forest Rd. 6N08) 7.3 mi N of Titlow Hill Rd., 0.8 mi S of Brush Mtn. Lookout Rd., S of Hwy. 299 and Willow Creek. Common groundcover on shaded forest edge. 975 Comment
  HSC20440  Whipplea modesta S. S. Stutz 1963-3-24 8 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC33414  Whipplea modesta Thomas W. Nelson 1974-5-30 1348 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  SDSU19191  Whipplea modesta Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3013 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 1.75 miles south. Roadcut, north side of road. Ca. 1.4 aerial miles west-northwest of Horse Mtn. Radio Tower. 978 Comment
  HSC79482  Woodwardia fimbriata Kenneth Clark 1980-6-14 678 Humboldt N fork of Dead Man's Gulch 84 Comment
  UC175391  Wyethia angustifolia Joseph P. Tracy 1913-6-10 4079 Humboldt bluff near Bucksport; Northern Coast Ranges, Eureka 0 Comment
  HSC100451  Wyethia angustifolia Carl C. Marshall Jul 1886 261 Humboldt Coast Range. Comment
  HSC73870  Wyethia longicaulis Gail Newton 1980-7-14 1462 Humboldt Near Last Chance Ridge. 1219 Comment
  LA17036  Xerophyllum tenax C. B. Wolf; 1934-6-30 5840 Humboldt 6 mi. from Shelter Cove on rd to Briceland near summit of grade Comment
  CAS-BOT-BC527078  Xerophyllum tenax Volney Rattan 1903-1-1 s.n. Humboldt Near Mad River Bridge Comment
  HSC12355  Zeltnera muehlenbergii Steve Dorei 1970-10-31 130 Humboldt Scotia Bluff area Comment
  HSC8414  Zeltnera muehlenbergii J. P. Tracy 1938-7-18 16085 Humboldt Fickle Hill, 4 mi. S of Arcata 366 Comment
  HSC26270  Zigadenus venenosus var. venenosus Thomas W. Nelson 1971-5-31 450 Humboldt 915 Comment



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