Search Results — 2000 specimen records retrieved (1372 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC55164  Abies concolor Gilbert Muth 1979-8-1 12146 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC73545  Abies concolor Gail Newton 1980-7-14 1470 Humboldt Near Last Chance Ridge. 1219 Comment
  UC502908  Abies concolor Joseph P. Tracy Jul 16 1930-Jul 19 1930 8962 Humboldt in fir forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC78053  Abies grandis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC78055  Abies grandis Thomas Nelson; Jane Nelson 1979-9-10 5064 Humboldt Along old logging road, south of Lundbar Hills section of Eureka 48 Comment
  UC1134161  Abies grandis G. T. Nordstrom 1937-7-1 1420 Humboldt 2.5 mi ne Orick; Orick Quad. 152 Comment
  HSC73024  Abies procera Gail Newton 1980-8-10 1987 Humboldt Near Blake Mtn. 1798 Comment
  HSC16136  Abronia latifolia S. J. Hawks 1965-5-13 55 Humboldt 1 mi. W of McKinleyville, past the end of Murray Rd. Comment
  HSC37569  Abronia latifolia J. D. Ackerman 1975-6-10 456 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  SBBG69878  Abronia latifolia S. W. Hutchinson -Jun-1925 712 Humboldt Orick 7 Comment
  CAS-BOT-BC383849  Abronia latifolia Doris K. Kildale 1926-6-18 2406 Humboldt Golf Bluffs Comment
  HSC69787  Abronia latifolia R. Kalal 1979-5-27 35 Humboldt Along Samoa Blvd. 3 Comment
  UC524123  Abronia latifolia Ira L. Wiggins 1932-7-19 5888 Humboldt 8 mi n Arcata (Sand dunes near Clam Beach) Comment
  UC665677  Abronia umbellata subsp. breviflora H. E. Parks 1941-9-1 24212 Humboldt mouth of Little River Comment
  SBBG34169  Acaena novae-zelandiae D. W. Cooper 1966-10-10 Humboldt ridge just SE of USFS Nursery, ca. 2 mi SE of Crannell and ca. 4 mi E of US Hwy 101 Comment
  RSA20961  Acer glabrum var. torreyi Carl B. Wolf 1937-9-13 9336 Humboldt North Coast Range, Clear Lake, between Grouse Mountain and Horse Mountain 1524 Comment
  CAS-BOT-BC331593  Acer macrophyllum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  SEINET12237260  Acer macrophyllum F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -175 Humboldt ca 0.4 mi S towards Redcrest on Avenue of Giants from junction with US 101 15 Comment
  SEINET9350229 Image available Acer macrophyllum Frederick Utech, Knight, Walter; Knight Irja 1984-4-20 84 -175 Humboldt Humboldt County; Ca. 0.4 mi S towards Redcrest on Avenue of Giants from junction with US hwy 101. Trees to 20 ft.; along edge of Redwood Forest Association. Elev: 50 ft Herbarium, Carnegie Museum (CM), Pittsburgh, PA. 15 Comment
  HSC57017  Achillea millefolium Overton, Butler 1979-7-24 9624 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC58210  Achillea millefolium Walter Overton 1979-8-1 12329 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1199375  Achillea millefolium J. P. Tracy 1901-7-28 1220 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC28577  Achillea millefolium J. Clausen 1949-6-22 2158 Humboldt 4 miles S of Scotia on redwood Highway in border of redwood forest near Eel River Comment
  HSC4547  Achillea millefolium H. E. Parks, S. T. Parks Aug 1943 24246 Humboldt Egg Point, Trinidad 122 Comment
  HSC4573  Achillea millefolium John A. DuBois 1962-5-23 31 Humboldt 15 mi. E of Arcata Comment
  HSC3337  Achlys triphylla J. F. Knezevich 1968-5-21 445 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC73179  Achlys triphylla M. A. Baker 1980-5-18 1295 Humboldt Near Black Mtn. 1006 Comment
  HSC74572  Achlys triphylla M. A. Baker 1980-5-17 1190 Humboldt Near Le Perron Peak 792 Comment
  CAS-BOT-BC210656  Achnatherum lemmonii Joseph P. Tracy 1927-5-14 8000 Humboldt Trinity River Valley, near the South Fork 182 Comment
  UC1145040  Achnatherum lemmonii Joseph P. Tracy 1950-6-15 18787 Humboldt 7 mi n Harris (Mail Ridge); Mail Ridge 1036 Comment
  UCD50697  Achnatherum lemmonii A. H. Murphy 1947-6-25 s.n. Humboldt Lassic Peak Road, northeast of Blockburg. Humboldt County, California. Comment
  UC668212  Achyrachaena mollis Joseph P. Tracy 1938-6-9 15889 Humboldt 2 mi w on top of ridge Harris 914 Comment
  BLMAR154  Acmispon parviflorus Donald Hazlett 1994-6-7 154 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UCD104287  Acmispon parviflorus Linda M. Barker 1976-4-30 1410 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC54752  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-26 10270 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC58017  Adenocaulon bicolor G. L. Clifton 1979-7-31 11819 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  OBI1123  Adiantum X tracyi Lawrence L. Kiefer 1964-5-19 1406 Humboldt Garberville, California one mile north of town, ravine just above Highway 101 305 Comment
  HSC54594  Adiantum aleuticum Overton, Butler 1979-7-24 9665 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UCD137172  Adiantum aleuticum K. Esau 1934-5-8 s.n. Humboldt Redwood Highway, So. of Scotia. Comment
  UCD137191  Adiantum jordanii Lincoln Constance 1934-6-4 823 Humboldt Bull Creek Region, South Fork Eel River. Comment
  OBI37796  Aesculus californica David J. Keil 1983-7-1 17276 Humboldt 2.5 mi NE of Honeydew along Bull Crk Flats rd Comment
  HSC58167  Agastache urticifolia G. L. Clifton, Griswold 1979-8-2 12237 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC58330  Agastache urticifolia Overton, Butler 1979-8-2 12630 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC74197  Agastache urticifolia M. A. Baker 1980-7-22 3126 Humboldt Near Grogan Hole. 1676 Comment
  JEPS18702  Ageratina occidentalis Milo S. Baker 1923-7-21 447 Humboldt Bed of Van Duzen North Coast, Bed of Van Duzen Comment
  HSC74690  Agoseris grandiflora Gail Newton 1981-8-7 2464 Humboldt Near Board Camp Mtn. 1478 Comment
  HSC4597  Agoseris grandiflora John Johnson 1962-8-17 1004 Humboldt Samoa Peninsula; Lanpher Ranch Comment
  UC1222942  Agoseris grandiflora Joseph P. Tracy 1948-8-8 18093 Humboldt Iaqua School House Iaqua Comment
  UC582756  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1935-7-25 14234 Humboldt McKay Prairie Trinity Summit, McKay Prairie 1584 Comment
  CAS-BOT-BC15343  Agoseris heterophylla Alice Eastwood; John Thomas Howell 1937-6-23 4810 Humboldt Little Van Duzen River Comment
  UC526888  Agrostis alba Joseph P. Tracy 1932-8-21 10363 Humboldt foothills Chaparral Mountain (Three Cabins); North Coast Ranges, foothills Chaparral Mountain 457 Comment
  UCD51860  Agrostis capillaris A. H. Murphy 1947-8-5 s.n. Humboldt McComb Ranch, Bald Hills, 7-8 miles SE of Orick. Comment
  RSA10025  Agrostis densiflora Joseph P. Tracy 1927-7-17 8271 Humboldt Three Cabins; Chaparral Mountain Comment
  JEPS75411  Agrostis exarata W. L. Jepson 1932-7-24 16380 Humboldt near Camp Grant; Eel River 91 Comment
  UC1145070  Agrostis exarata Joseph P. Tracy 1938-7-6 16021 Humboldt in bog Big Lagoon 6 Comment
  UC552714  Agrostis exarata Joseph P. Tracy 1935-7-21 14113 Humboldt at Willow Creek (in open field); Trinity River Valley 152 Comment
  SEINET10789958  Agrostis exarata Joseph P. Tracy 1900-9-2 Tracy 933 Humboldt Immediate vicinity of Eureka. Bed of frog pond. 0 Comment
  SEINET7593701 Image available Agrostis exarata W. A. Silveus 1938-1 2977 (a) Humboldt Near Dyerville 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
  UC1103523  Agrostis hallii Joseph P. Tracy 1919-9-22 5267 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC1145076  Agrostis hallii Joseph P. Tracy 1947-7-3 17762 Humboldt Trinidad 3 Comment
  UC188851  Agrostis hallii Joseph Burtt Davy 1899-6-16 5564 Humboldt Alton Comment
  HSC58811  Agrostis idahoensis G. L. Clifton, Griswold 1979-8-1 11993 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  CAS-BOT-BC139131  Agrostis oregonensis Joseph P. Tracy 1934-7-13 13392 Humboldt North Coast Ranges. Dows Prairie. 60 Comment
  CAS-BOT-BC138636  Agrostis stolonifera Carl B. Wolf 1927-8-28 1189 Humboldt Eureka Bay, on the road to Arcata. Comment
  UCD53537  Agrostis stolonifera R. Tofsrud 1948-9-1 s.n. Humboldt Salmon Creek Ranch, about 8 miles S. of Eureka. Comment
  UC1103297  Aira caryophyllea Joseph P. Tracy 1923-6-24 6359 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1103298  Aira caryophyllea Joseph P. Tracy 1922-4-30 6017 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC8867  Aira praecox J. W. Johnson 1961-9-4 1100 Humboldt Aracta, Samoa Peninsula, Christenson Farm Comment
  UC34056  Aira praecox J. P. Tracy 1900-6-5 849 Humboldt Immediate vicinity of Eureka 0 Comment
  UC194898  Alisma plantago-aquatica Joseph P. Tracy 1916-6-19 4724 Humboldt Dobbyn Creek Northern Coast Ranges 182 Comment
  HSC98054  Allium amplectens Cara Witte 2007-7-11 510 Humboldt National Forest 1. Approximately 1 mile south of intersection with 5N01. Near Spike Buck Mountain. 1591 Comment
  SEINET12044091  Allium amplectens C. C. Harris, Harris, S. K. 1936-1 645 Humboldt at point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River 710 Comment
  SEINET199677  Allium bolanderi J. P. Tracy 1932-6-14 10139 Humboldt S Fork of Trinity River 0 Comment
  SEINET199678  Allium campanulatum J. P. Tracy 1933-7-25 12863 Humboldt Grouse Mtn 1524 Comment
  CAS-BOT-BC469018  Allium falcifolium Doris K. Kildale 1926-6-9 2150 Humboldt Horse Mountain 1219 Comment
  HSC82040  Allium falcifolium Thomas W. Nelson, James Nelson 1980-6-10 5407 Humboldt Along Swayback Ridge 4-wheel drive rd. 2.5 mi. N of the junction with USFS rd. 1S07 1463 Comment
  UC30070  Allium falcifolium Joseph Burtt Davy 1899-6-19 5659 Humboldt summit of ridge, Hoopa Mt. Hoopa Mt. Comment
  HSC65952  Allium hoffmanii M. A. Baker 1980-7-11 2799 Humboldt Near Red Mtn. 1433 Comment
  HSC71809  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5951 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  HSC76440  Allium siskiyouense Denis Kearns 1981-6-24 27 Humboldt Near Cedar Camp 1219 Comment
  SEINET4208044  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U.S. Hwy. 101 ca 1.0 miles west of Orick.; 0 4 Comment
  JEPS56396  Allium unifolium Joseph P. Tracy 1918-7-5 5004 Humboldt Mattole River Northern Coast Ranges, White Thorn Valley, Mattole River 304 Comment
  SEINET199680  Allium unifolium Joseph P. Tracy 1935-6-8 13953 Humboldt Dry Lagoon along coast in front of South End of Stone Lagoon. 15 Comment
  CAS-BOT-BC169534  Alnus rubra Doris K. Kildale 1929-2-28 6946 Humboldt Arcata - State Teachers College Comment
  HSC31798  Alnus rubra Steve Selva, Roger Jensen 1974-8-27 82 Humboldt Along Hwy. 299, approx. 10 mi. E of Blue Lake Comment
  UC54760  Alnus viridis subsp. sinuata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5778 Humboldt Trinity Summit North Coast Ranges (Mendocino, Humboldt, and Del Norte Counties) Comment
  UC1145046  Alopecurus aequalis Joseph P. Tracy 1950-7-6 19019 Humboldt 3 mi. s. Burr Valley (Buck Mt., high meadow w. side,); Buck Mt. 1158 Comment
  SEINET201058  Alopecurus carolinianus J. P. Tracy 1932-8-21 10360 Humboldt Three Cabins; lower W foothills of Chaparral Mtn 457 Comment
  UC207704  Alopecurus geniculatus Joseph P. Tracy 1917-6-17 4816 Humboldt Salmon Creek Northern Coast Ranges, Salmon Creek 15 Comment
  UCD55903  Alopecurus geniculatus Joseph P. Tracy 1951-6-21 19524 Humboldt Hydesville, back of Everett Beck house (formerly George Fray), bed of former Goose Lake. Comment
  UCR200272  Alopecurus geniculatus R. F. Thorne, Percy C. Everett 1965-8-9 35334 Humboldt Northwestern; Outer North Coastal region, Clam Beach County Park, along highway 3 Comment
  HSC8897  Alopecurus pratensis W. F. Cartwright 1965-4-22 60 Humboldt 2 mi. W of Arcata on Arcata bottoms Comment
  OBI22518  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton Comment
  SEINET201057  Alopecurus saccatus J. P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  JEPS40953  Ambrosia chamissonis Joseph P. Tracy 1937-9-26 15687 Humboldt near Samoa; Humboldt Bay 6 Comment
  SEINET200734  Amelanchier alnifolia J. P. Tracy 1908-6-27 2768 Humboldt Valley of Van Duzen River opposity Buck Mtn 762 Comment
  CAS-BOT-BC142892  Amelanchier alnifolia var. semiintegrifolia Harley P. Chandler 1901-6-1 1282 Humboldt Hupa Indian Reservation 1097 Comment
  HSC55618  Amelanchier pallida Overton, Butler 1979-7-23 9521 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC8842  Ammophila arenaria Paul Shields Apr 1955 Humboldt 5 mi. SW Arcata Comment
  HSC17844  Anagallis arvensis W. F. Nickel 1965-5-6 Humboldt On Humboldt State University campus, behind Biological Science Bldg. Comment
  HSC68320  Anagallis arvensis J. P. Smith 1973-5-26 6817 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC55331  Anemone deltoidea Griswold, Butler 1979-7-12 7175 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC55868  Anemone deltoidea G. L. Clifton, Griswold 1979-7-25 10891 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC535706  Anemone deltoidea Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  UC673052  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka, near south city limits Eureka 6 Comment
  CAS-BOT-BC221418  Angelica hendersonii L. R. Abrams 1916-7-18 6138 Humboldt At Trinidad Comment
  RSA21584  Angelica hendersonii C. B. Wolf 1937-9-9 9304 Humboldt 2 miles S of Cape Mendocino. 6 Comment
  UC642306  Angelica hendersonii Joseph P. Tracy 1938-8-28 16134 Humboldt Trinidad 3 Comment
  HSC71418  Angelica hendersonii J. M. DiTomaso 1980-7-29 1806 Humboldt Elkshead, 2 mi N of Trinidad Comment
  HSC71276  Angelica lucida J. M. DiTomaso 1980-6-8 1577 Humboldt Next to Hwy 101 between Arcata and Eureka, 1.5 mi. S of Indianola Rd. Comment
  RSA246794  Angelica lucida R. F. Thorne, P. Everett 1965-8-9 35337 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 Comment
  CAS-BOT-BC94796  Anisocarpus madioides R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 835 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air mi. N of Mattole Road & 3 air mi. W of Hwy 101. 243 Comment
  HSC56950  Antennaria suffrutescens Overton, Butler 1979-7-23 9450 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  UC302185  Antennaria suffrutescens Joseph P. Tracy 1926-6-20 7626 Humboldt Horse Mountain 1524 Comment
  HSC4670  Anthemis cotula Lincoln Constance 1934-5-27 694 Humboldt S Fork of Eel River, S end of Dyerville Bridge 46 Comment
  CAS-BOT-BC289124  Anthoxanthum occidentale Doris K. Kildale 1926-3-28 1671 Humboldt Redwood Creek at Berry's 289 Comment
  HSC10102  Anthoxanthum occidentale E. W. Styskel 1963-4-20 19 Humboldt 3 mi SE of Korbel on Snow Camp Rd. 290 Comment
  CAS-BOT-BC137743  Anthoxanthum odoratum David D. Keck 1948-7-1 5968 Humboldt Trinidad. Comment
  LA9278  Anthoxanthum odoratum H. S. Yates; 1936-6-23 16830 Humboldt 2 mi E of mouth of Mad River 30 Comment
  SEINET3918444  Anthoxanthum odoratum H. E. Parks, S. T. Parks 1952-1 24444 Humboldt Spruce Cove, Trinidad.; 0 61 Comment
  HSC62743  Anthriscus caucalis J. M. DiTomaso 1979-4-21 882 Humboldt Clam Beach Comment
  UC1196739  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1946-11-17 17665 Humboldt Eel River at mouth of Van Duzen River; Eel River 18 Comment
  UC902209  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1946-8-25 17647 Humboldt Eel River at mouth of Van Duzen River; Eel River 18 Comment
  UC902211  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1949-8-11 18468 Humboldt 2 to 6 mi s Grouse Mt.; Kinsey Ridge 1280 Comment
  CAS-BOT-BC447667  Aphanes arvensis J. P. Tracy 1901-5-5 1072 Humboldt Immediate Vicinity of Eureka 152 Comment
  HSC57660  Apocynum androsaemifolium G. L. Clifton, Griswold 1979-7-25 10835 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC57887  Apocynum androsaemifolium Overton, Butler 1979-7-31 11438 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC392159  Aquilegia formosa J. O. Sawyer; R. J. Cole 1977-7-3 3006 Humboldt Environs of Mud Spring. Big Hill Road (F.S. 8N01) 1524 Comment
  HSC44500  Aquilegia formosa Brad Klipfel 1973-4-28 14 Humboldt Along Canyon Creek, SW of Korbel Comment
  HSC18040  Aquilegia formosa var. formosa Greg Bos 1965-5-2 235 Humboldt 5 mi. E of Korbel on Bald Mtn. Rd. 732 Comment
  HSC18041  Aquilegia formosa var. formosa N. D. Dennis 1965-5-8 57 Humboldt 2.5mi N of Willow Creek Comment
  HSC45491  Aquilegia formosa var. formosa Maralyn O'Meara 1972-6-8 102 Humboldt Along Bald Hills Rd. 18 mi. E of junction with Hwy. 101 Comment
  HSC48990  Aquilegia formosa var. formosa M. A. Baker 1979-5-25 757 Humboldt Comment
  HSC56075  Aquilegia formosa var. truncata G. L. Clifton, Griswold 1979-7-31 11751 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC56245  Aquilegia formosa var. truncata Walter Overton 1979-8-1 12348 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  HSC40232  Arabidopsis thaliana J. P. Smith, J. O. Sawyer 1976-5-2 8626 Humboldt 3.96 mi. N of junction with Hwy. 299 on Hwy. 96 Comment
  HSC57331  Arabis breweri var. breweri Overton, Marvin Butler 1979-7-25 9875 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC81489  Arabis divaricarpa var. interposita Thomas W. Nelson 1979-7-11 5028 Humboldt Along trail from Grogan's Hole to North Trinity Mtn., from Grogan's Hole to summit. Comment
  HSC54209  Arabis glabra Griswold, Butler 1979-7-12 7253 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC58354  Arabis glabra Walter Overton, Butler 1979-8-2 12692 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  UC161543  Arabis glabra Joseph P. Tracy 1906-5-13 2456 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  HSC57210  Arabis holboellii var. retrofracta Terry Griswold, Marvin Butler 1979-7-12 7239 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC57407  Arabis holboellii var. retrofracta G. L. Clifton, Terry Griswold 1979-7-26 10162 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC100458  Arabis perfoliata Carl C. Marshall Jun 1887 403 Humboldt Harris. Comment
  HSC3249  Aralia californica H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  RSA46724  Aralia californica Doris K. Kildale 1936-10-3 15099 Humboldt Willow Creek Comment
  SJSU2568  Aralia californica H. L. Buckalew 1962-7-2 Humboldt junction of Willow Creek & E Fork Willow Creek on Hwy 299, eastern Humboldt County Comment
  UC154135  Aralia californica P. E. Goddard 1901-7-12 78 Humboldt Hupa Comment
  CAS-BOT-BC128695  Arbutus menziesii Doris K. Kildale 1927-5-7 3109 Humboldt Elk Ridge near Eel Rock Comment
  UC1225936  Arctostaphylos Joseph P. Tracy 1947-7-5 17787 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC585951  Arctostaphylos Joseph P. Tracy 1932-7-12 10474 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  SD62040  Arctostaphylos canescens Darley F. Howe 1965-8-12 4129 Humboldt 7.9 miles south of Honeydew. Comment
  CAS-BOT-BC25213  Arctostaphylos canescens subsp. canescens L. B. Kildale 1928-4-29 5960 Humboldt Bald Mountain - at Lord-Ellis junction. Comment
  CAS-BOT-BC25215  Arctostaphylos canescens subsp. canescens Clarence Roy Quick 1959-7-24 96 .59-40. Humboldt Bee Mt., ca. 12 miles SW of Orleans Comment
  BLMAR245  Arctostaphylos columbiana Jennifer Anthony-Wheeler 1997-7-24 245 Humboldt Lacks Creek, growing along rdside & throughout regenerating 1219 Comment
  CAS-BOT-BC23733  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Van Duzen River. Comment
  CAS-BOT-BC23750  Arctostaphylos columbiana Joseph P. Tracy 1904-4-3 2008 Humboldt Immediate vicinity of Eureka 152 Comment
  CAS-BOT-BC23764  Arctostaphylos columbiana J. E. Adams 1935-5-12 1048 Humboldt Patrick's Point Comment
  CAS-BOT-BC23812  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Bald Mt. between Korbel and Redwood Creek Comment
  JEPS38611  Arctostaphylos columbiana W. L. Jepson 1921-8-11 9410 Humboldt Big Lagoon 15 Comment
  RSA622685  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27786 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  UC1198651  Arctostaphylos columbiana Joseph P. Tracy 1936-2-22 13137 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC176995  Arctostaphylos columbiana Joseph P. Tracy 1912-7-22 3794 Humboldt Table Bluff Northern Coast Region, region about Humboldt Bay 0 Comment
  UCD50772  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1170 Humboldt 21.4 miles east of U.S. Highway 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  CAS-BOT-BC23735  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River. Comment
  SEINET11989091  Arctostaphylos columbiana R. Gankin, Hildreth, W. R. 1967-1 1167 Humboldt 20 road mi E of Hwy 101 on Bald Hills Rd (from Orick) Comment
  POM209627  Arctostaphylos columbiana var. columbiana H. E. Parks 1931-12 4950 Humboldt Hobson's Trinidad. 61 Comment
  RSA13418  Arctostaphylos columbiana var. tracyi H. E. Parks 1931-3-25 917 Humboldt Near Patrick's point. Comment
  SD230217  Arctostaphylos glandulosa subsp. glandulosa Louis C. Wheeler 1959-8-1 7621 Humboldt Queens Peak Mine. Comment
  UC585934  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13330 Humboldt 5 mi s Harris (on road towards Bell Springs); North Coast Ranges 762 Comment
  RSA47100  Arctostaphylos intricata Doris K. Kildale 1926-2-28 1521 Humboldt McDowell Butte - Kneeland. Comment
Read comments
Jul 25 2012
  RSA633023  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 s.n. Humboldt Highway 96, 15 km north of Willow Creek. 100 Comment
  UCD52079  Arctostaphylos manzanita Harold E. Parks; Joseph P. Tracy 1936-5-16 11304 Humboldt Near Gasquet; mountain slopes; north side of Middle Fork of Smith River; on old Gasquet Toll Road. 609 Comment
  RSA47101  Arctostaphylos manzanita subsp. elegans Doris K. Kildale 1926-4-6 1718 Humboldt Dobbyns Creek along road from mail box to Log Cabin Ranch Comment
  CAS-BOT-BC24367  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-9-5 2614 Humboldt Lesseck's Peaks. 1371 Comment
  CAS-BOT-BC24372  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-6-25 3583 a Humboldt Near Ettesburg. Comment
  HSC102569  Arctostaphylos nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1556 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC7656  Arctostaphylos nevadensis J. Pursell 1964-10-17 10173 Humboldt Road to Box Camp in Hoopa Valley Comment
  CAS-BOT-BC40064  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13160 Humboldt French Camp Ridge 1066 Comment
  SBBG83937  Arctostaphylos nevadensis subsp. knightii R. Gankin, W. R. Hildreth 1967-10-26 1180 Humboldt 23.2 rd mi E of US Hwy 101 on Bald Hills Rd (from Orick) Comment
  HSC55172  Arctostaphylos patula Gilbert Muth 1979-8-1 12173 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  RSA60536  Arctostaphylos patula John H. Thomas 1949-6-13 920 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. 1677 Comment
  UC1173708  Arctostaphylos patula Joseph P. Tracy 1939-8-16 16419 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC46638  Arctostaphylos patula C. Hart Merriam 1919-8-10 s.n. Humboldt Wetchpek, Klamath Canyon. Comment
  UC1225930  Arctostaphylos uva-ursi Joseph P. Tracy 1945-5-10 17506 Humboldt Eureka 45 Comment
  UCD52029  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17500 Humboldt 45 Comment
  SEINET11989105  Arctostaphylos uva-ursi R. Gankin, Hildreth, W. R. 1967-1 1146 Humboldt 1.7 mi S of Samoa, on Humboldt Peninsula Comment
  SEINET11987311  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4200 Humboldt Strybing Arboretum, Golden Gate Park, San Francisco, orig. probably from Samoa Sand Spit Comment
  UC902046  Arctostaphylos viscida subsp. viscida Joseph P. Tracy 1949-8-4 18419 Humboldt Mud Springs Trinity Summit 1341 Comment
  CDA18206  Armeria maritima subsp. californica G. D. Barbe, T. C. Fuller 1974-6-17 1832 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  HSC16897  Armeria maritima subsp. californica J. R. Kahl 1962-5-13 33 Humboldt 2 mi. S of Trinidad along old Hwy. 101, 50 yds. from ocean Comment
  HSC40999  Arnica discoidea J. O. Sawyer 1975-10-17 2709 Humboldt Along Big Hill Rd. 915 Comment
  UC34161  Arnica discoidea Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  HSC49998  Arnica discoidea M. A. Baker 1979-6-7 790 Humboldt W slope of Snow Mtn. 762 Comment
  CAS-BOT-BC82647  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1524 Comment
  UC129438  Arnica latifolia Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5754 Humboldt Trinity Summit Comment
  HSC100423  Arnica parviflora Carl C. Marshall Jun 1886 281 Humboldt Mud Spring Camp. Comment
  HSC8987  Arrhenatherum elatius L. M. Malloy 1965-5-20 29 Humboldt On Fickle Hill Rd., 2 mi. from Arcata Comment
  CHSC55838  Artemisia pycnocephala L. P. Janeway 1987-7-31 2540 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of the Eureka City Airport. 3 Comment
  HSC4747  Artemisia pycnocephala H. E. Parks, S. T. Parks Jun 1952 24495 Humboldt Samoa Comment
  RSA296735  Artemisia pycnocephala J. P. Smith, Thomas W. Nelson 1977-6-30 9216 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC34795  Asarum caudatum John Palmer 1975-4-9 297 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  HSC98125  Asarum caudatum Cara Witte 2007-6-28 379 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  HSC31193  Aspidotis densa D. E. Anderson 1972-6-20 5750 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC97473  Aspidotis densa Cara Witte 2007-5-23 91 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  UCSB29324  Aspidotis densa Phelps, M. 1972-3-22 Humboldt Abundant on Cedar Flat, Elk Ridge 762 Comment
  POM161487  Aster brickellioides Joseph P. Tracy 1918-9-18 5223 Humboldt Trinity Summit. Comment
  UC502993  Astragalus agnicidus J. C. Tario Jr. 1931-8-20 Humboldt 4 mi s Miranda (near Bear Buttes, local on Tosten and Pierce Ranch); s of Miranda, nr Bear buttes, Tosten and Pierce Ranch 762 Comment
  CAS-BOT-BC192859  Astragalus purshii var. lectulus Thomas W. Nelson; James L. Nelson 1980-6-10 5405 Humboldt Along Swayback Ridge 4-wheel drive road ca. 2.5 miles north of junction with Forest Service road 1S07 1463 Comment
  JEPS21029  Astragalus rattanii var. rattanii Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  RSA138315  Astragalus rattanii var. rattanii Volney Rattan 1882-06 s.n. Humboldt Humboldt Comment
  UC175639  Astragalus rattanii var. rattanii Joseph P. Tracy 1913-5-4 4051 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  SFV18601  Astragalus umbraticus T. W. Nelson, J. P. Nelson 1987-6-27 8620 Humboldt Along USFS road to Onion Lake, 8.2 miles from junction with State Route 96. 823 Comment
  UC179937  Astragalus umbraticus Joseph P. Tracy 1914-7-5 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  HSC41268  Asyneuma prenanthoides Brad Klipfel 1974-7-23 462 Humboldt Horse Mtn. Comment
  HSC69890  Asyneuma prenanthoides Thomas W. Nelson, Jane P. Nelson 1977-7-30 3662 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  CAS-BOT-BC69453  Athyrium filix-femina subsp. cyclosorum Carl B. Wolf 1939-7-6 9516 Humboldt Along Larabee Creek, 6 7/10 mi. below Blocksburg on road to Bridgeville. 304 Comment
  HSC55210  Athyrium filix-femina var. cyclosorum Walter Overton 1979-8-1 12341 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC92400  Athyrium filix-femina var. cyclosorum L. P. Janeway 1984-5-13 781 Humboldt Along Redwood House Rd. 1.5 mi. from Hwy. 36 229 Comment
  UCR139066  Atriplex patula subsp. obtusa Gordon Leppig 1999-10-25 1266 Humboldt Eureka, Palco Marsh 1 Comment
  HSC102945  Avena barbata J. P. Smith 2009-5-30 12598 Humboldt Arcata. Near intersection of Valley West and Giuntoli Road Comment
  BLMAR35  Avena barbata Brad Barr 1982-6-21 35 Humboldt King range, elk enclosure Comment
  UCD56455  Avena fatua Kathleen Moore 1964-7-14 s.n. Humboldt Kneeland. 1/2 mile north of Star Barn. Comment
  UC1239784  Azolla filiculoides Joseph P. Tracy 1911-6-25 3245 Humboldt pool back of Holmes Mill Bucksport; Northern Coast Region 0 Comment
  UC673091  Baccharis pilularis Joseph P. Tracy 1940-10-17 16765 Humboldt Camp Grant, along Eel River, 2 to 5 mi e of South Fork Eel River 45 Comment
  HSC5114  Baccharis pilularis subsp. consanguinea D. E. Anderson 1961-8-25 1756 Humboldt 1.5 miles S of Trinidad. overlooking beach Comment
  SEINET7003037  Baeria chrysostoma J. P. Tracy 1901-5-18 1099 Humboldt Ocean Beach at Samoa, opposite Eureka. Comment
  HSC26635  Balsamorhiza deltoidea Thomas W. Nelson 1971-5-31 457 Humboldt Adjacent to the Mad River N of Dinsmore Comment
  SEINET11861883  Balsamorhiza deltoidea J. P. Tracy 1950-6-15 18792 Humboldt Mail Ridge, N of Harris 7 mi Comment
  HSC48865  Barbarea orthoceras Brad Klipfel 1973-6-10 58 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58642  Barbarea orthoceras G. L. Clifton, Terry Griswold 1979-7-31 11639 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC562693  Barbarea orthoceras Joseph P. Tracy 1935-7-25 14239 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  HSC7002  Barbarea verna W. F. Nickel 1965-4-22 Humboldt HSU campus between the Wildlife and Biological Science buildings Comment
  HSC95549  Barbarea vulgaris Andrea Pickart 2002-5-24 107 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  OBI37802  Bellardia viscosa David J. Keil 1983-7-1 17282 Humboldt 1 mi NW of Petrolia Fire Station along Mattole Rd Comment
  UC165030  Bellis perennis J. P. Tracy 1901-6-10 1127 Humboldt about Eureka 0 Comment
  HSC5192  Bellis perennis D. E. Anderson 1961-8-11 1729 Humboldt East of Humboldt State College campus Comment
  HSC35711  Berberis aquifolium Thomas W. Nelson 1975-10-12 2238 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC552297  Berberis aquifolium Joseph P. Tracy 1934-7-6 13660 Humboldt at crossing of the Kneeland Rd Lawrence Creek 457 Comment
  HSC71607  Berberis aquifolium var. repens Gail Newton 1980-6-16 201 Humboldt Near Onion Mtn. 1280 Comment
  HSC100398  Berberis nervosa Carl C. Marshall Apr 1886 67 Humboldt Woods in redwood belt. Comment
  HSC3349  Berberis nervosa John A. Dubois 1962-4-28 15 Humboldt 20 mi. E of Arcata Comment
  BLMAR651  Berberis pinnata subsp. pinnata Jennifer Wheeler 2012-5-9 651 Humboldt Lacks Creek, Beaver Ridge Road 890 Comment
  HSC102084  Bistorta bistortoides M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 988 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC55017  Bistorta bistortoides Overton, Butler 1979-7-31 11415 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC73635  Bistorta bistortoides M. A. Baker 1980-7-22 3107 Humboldt Near Grogan Hole. 1676 Comment
  HSC35726  Blechnum spicant Thomas W. Nelson 1975-1-16 1747 Humboldt E of HSU campus Comment
  JEPS109416  Boechera subpinnatifida D. W. Taylor 2004-6-24 19131 Humboldt Horse Mountain, along Titlow Hill Road, 0.4 miles N from junction with the road to the mountain summit. Comment
  RSA167245  Boisduvalia densiflora Joseph P. Tracy 1950-6-18 18843 Humboldt Cape Mendocino, near the ocean shore, south of point of the Cape: Davis Creek. 3 Comment
  CHSC96445  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1999-10-25 1268 Humboldt State Highway 101, mile marker 61.40. UTM zone 10, 4519N, 406 E. 2 Comment
  HSC93472  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1998-6-25 851 Humboldt Hwy. 101 marker 81.60, brackish ditch on E side of Hwy. 2 Comment
  UC123067  Botrychium multifidum Mrs. R. M. Austin 1894-1 Humboldt Ferndale Comment
  CAS-BOT-BC95327  Bowlesia incana Dr. A. Kellogg; W. G. W. Harford 1868-1-1 297 Humboldt unspecified Comment
  HSC74415  Boykinia major Gail Newton 1980-8-10 2036 Humboldt Near Blake Mtn. 1707 Comment
  RSA20790  Boykinia major Carl B. Wolf 1937-8-13 9255 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  CAS-BOT-BC420269  Boykinia occidentalis Harley P. Chandler 1901-6-1 1501 Humboldt Klamath River 426 Comment
  RSA32654  Boykinia occidentalis Doris K. Kildale 1925-7-28 1100 Humboldt [Unspecified] Comment
  UC165031  Brickellia californica Joseph P. Tracy 1900-9-10 960 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  RSA249403  Briza maxima J. D. Ackerman 1974-5-26 268 Humboldt ca. 1 mile south of Trinidad on Scenic Drive. Near coastal bluffs. Comment
  RSA614433  Briza maxima K. L. Chambers 1993-5-5 5717 Humboldt Hwy. 101, where it meets the ocean just south of Orick. Comment
  CAS-BOT-BC145570  Briza minor Doris K. Kildale 1925-6-28 916 Humboldt Fleener Creek. Comment
  HSC9096  Briza minor R. D. Modafferi 1965-5-13 Humboldt 2.3 mi. N of Trinidad on Trinity St. 305 Comment
  JEPS72933  Briza minor Lincoln Constance 1934-5-23 611 Humboldt se slope of mt. above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  JEPS11984  Brodiaea elegans subsp. elegans Rimo Bacigalupi with G. T. Robbins 1954-6-28 4656 Humboldt 4.7 mi s Weitchpec (along highway high above Trinity River, between Hoopa Valley and Weitchpec); Hoopa Indian Reservation 167 Comment
  RSA168838  Brodiaea stellaris Joseph P. Tracy 1950-6-25 18903 Humboldt McClellen Mtn, just E of McClellen Rock, Burr Valley. 762 Comment
  SEINET3921829  Bromus carinatus Thomas Nelson, Jane P. Nelson 1976-7-26 3037 Humboldt Along ridge northwest of Lassic Peak (Signal peak).; 0 1707 Comment
  HSC103006  Bromus carinatus var. carinatus J. P. Smith 2014-5-23 13485 Humboldt Along the Hammond Trail north of Murray Road in McKinleyville 17 Comment
  UCD58498  Bromus carinatus var. carinatus A. H. Murphy 1951-3-30 s.n. Humboldt 2 miles north of Petrolia. County road. Comment
Read comments
May 22 2012
  HSC26365  Bromus carinatus var. marginatus T. O. Osborne 1970-4-5 84 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  CDA18212  Bromus carinatus var. maritimus G. D. Barbe, T. C. Fuller 1974-6-17 1840 Humboldt North Coast Ranges; Shelter Cove, uphill, E of Sail Court. 91 Comment
  UC188939  Bromus commutatus J. Burtt Davy 1899-6-16 5555 Humboldt North Coast Ranges, Scotia Scotia; North Coast Ranges, Scotia Comment
  HSC26775  Bromus diandrus Thomas W. Nelson 1971-5-31 465 Humboldt 915 Comment
  HSC37936  Bromus diandrus Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC9274  Bromus diandrus P. W. Shields 1956-4-21 Humboldt 5 mi. SE Arcata. Comment
  UC1131062  Bromus hordeaceus H. S. Yates 1936-6-17 5716 Humboldt near Burr Valley 914 Comment
  UC525675  Bromus madritensis subsp. rubens Joseph P. Tracy 1933-6-25 12623 Humboldt 2 to 5 mi e of South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  CAS-BOT-BC161605  Bromus sterilis Joseph P. Tracy 1933-6-13 12601 Humboldt North Coast Ranges. Bair's Ranch on Redwood Creek. 914 Comment
  CAS-BOT-BC161533  Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Northern Coast Ranges. Larrabee Valley. 701 Comment
  HSC70780  Bromus tectorum R. York 1980-5-17 546 Humboldt Near Le Perron Peak 1066 Comment
  HSC58810  Bromus vulgaris G. L. Clifton, Griswold 1979-8-1 11988 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC72678  Bromus vulgaris J. P. Smith 1977-7-3 9242 Humboldt Six Rivers National Forest, on Rd. to Onion Lake, 4.7 mi. from junction with Hwy. 36 610 Comment
  RSA259560  Bromus vulgaris D. E. Anderson, J. P. Smith 1971-6-28 J- 1231 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  UC1103269  Bromus vulgaris Joseph P. Tracy 1901-6-30 1211 Humboldt immediate vicinity of Eureka 0 Comment
  UC161575  Cakile edentula J. P. Tracy 1901-8-7 1266 Humboldt Ocean Beach at Samoa, opposite Eureka Ocean Beach; Samoa, Ocean Beach Comment
  HSC39983  Cakile maritima Linda M. Barker 1976-9-3 1694 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  SEINET200618 Image available Calamagrostis foliosa Joseph P. Tracy 1938-6-17 15967 B Humboldt Near Panther Gap on road between Mattole and Bull Creek. 823 Comment
  HSC58660  Calamagrostis koelerioides Gilbert Muth 1979-8-1 11888 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  CAS-BOT-BC185180  Calamagrostis nutkaensis A. A. Heller 1924-7-24 13880 Humboldt On the bluff at Humboldt County camp 7 miles south of Trinidad. Comment
  SEINET10521063  Calamagrostis nutkaensis A. Arthur Heller 1924-7-24 Heller 13880 Humboldt Sandy soil in shaded places on the bluff at Numboldt County camp 7 miles south of Trinidad. Comment
  HSC17635  Calandrinia ciliata R. T. Forester 1963-5-6 48 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  UC176676  Calandrinia ciliata Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3580 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC17628  Calandrinia ciliata D. E. Anderson 1963-5-19 2461 Humboldt Barry Rd., Kneeland Comment
  HSC59563  Callitriche heterophylla Rick Lundquist 1979-5-18 96 Humboldt Clam Beach Ponds 0 Comment
  HSC3804  Callitriche trochlearis Rollin Sparrowe 1962-5-16 3 Humboldt In ditch next to road Comment
  CAS-BOT-BC80384  Calocedrus decurrens G. A. Coleman 1901-7-24 s.n. Humboldt Head of Supply Creek, Hoopa Indian Reservation Comment
  JEPS17804  Calochortus amabilis Joseph P. Tracy 1916-6-19 4711 Humboldt Laribee Creek, at Bosworth's Northern Coast Ranges 457 Comment
  HSC34998  Calochortus tolmiei Thomas W. Nelson 1975-5-24 1879 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC38517  Calochortus tolmiei D. E. Anderson, J. P. Smith 1971-6-18 - 1082 Humboldt Horse Mtn. Comment
  CAS-BOT-BC494356  Calochortus tolmiei Doris K. Kildale 1926-5-2 1851 Humboldt Willow Creek Flat 152 Comment
  HSC26870  Calochortus tolmiei Clifton Raymond Chesbrough 1973-6-19 94 Humboldt 0.5 mi. N of College Cove along coast Comment
  UC1197687  Calochortus tolmiei Joseph P. Tracy 1913-6-10 4086 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC1222549  Calochortus tolmiei Joseph P. Tracy 1951-5-6 19394 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  UC1197690  Calochortus vestae Joseph P. Tracy 1918-6-16 4953 Humboldt Eureka Northern Coast Ranges Comment
  CAS-BOT-BC175759  Caltha leptosepala Joseph P. Tracy 1930-7-16 8971 Humboldt South Fork Mountain; at McKay Camp 1676 Comment
  JEPS39006  Calycadenia truncata J. P. Tracy 1911-7-5 3334 Humboldt Willow Creek Trinity River, Willow Creek 152 Comment
  RSA54132  Calycadenia truncata subsp. scabrella H. M. Pollard 1946-8-31 s.n. Humboldt Orleans to Somes Bar Comment
  CAS-BOT-BC275368  Calycadenia truncata var. truncata Harley P. Chandler 1901-6-1 1492 Humboldt Klamath River 426 Comment
  HSC100582  Calypso borealis Carl C. Marshall Apr 1886 198 Humboldt Damp woods. Comment
  HSC75952  Calyptridium monospermum Overton, Butler 1979-7-24 9736 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  JEPS52547  Calyptridium umbellatum P. E. Goddard 1906-6 672 Humboldt Lasseck Peak Comment
  HSC98837  Calystegia occidentalis subsp. occidentalis Cara Witte 2008-7-30 967 Humboldt Forest Service Road 4N32. 1/2 mile north of intersection with Forest Service Road 4N32B. 1417 Comment
  UC1222150  Calystegia purpurata subsp. purpurata Joseph P. Tracy 1950-6-8 18769 Humboldt near Petrolia (2 mi down river, hills between town and Ocean); near Petrolia Comment
  UC153985  Calystegia soldanella J. P. Tracy 1901-8-7 1274 Humboldt sand hills of Ocean Beach at Samoa (opp. Eureka); , opp. Eureka Comment
  UC1197877  Calystegia soldanella Joseph P. Tracy 1915-6-6 4650 Humboldt sandy beach near mouth Elk River (Eureka); Northern Coast Region, nr mouth Elk River, at Eureka 0 Comment
  UC1046537  Camassia quamash R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3419 Humboldt Ridge between Mad River and Redwood Creek (Bald Mountain, at Snow Camp); Bald Mountain, Snow Camp 1432 Comment
  SEINET12194288  Camissonia cheiranthifolia F. H. Utech 1986-1 86 -401 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  UC35372  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. C. Blasdale 1896-6-3 Humboldt W. Eureka Comment
  SEINET10462967  Campanula prenanthoides Stephen S. Tillett 1956-7-6 Tillett 612 Humboldt Area cleared by logging and fire, south slope along Bar Shanty Road, 5 miles from Orleans 488 Comment
  SEINET10462989  Campanula prenanthoides Tracy 1935-7-25 TRACY 14248 Humboldt Trinity Summit, wooded hillsides, lower end of Brett Hole 1585 Comment
  SEINET10873257  Campanula prenanthoides Etienne 1972-9-4 Etienne s.n. Humboldt Lumber road to Klamath River, about 8 miles inland and 1 mile north of the Humboldt County line 30 Comment
  HSC58014  Campanula scouleri G. L. Clifton 1979-7-31 11815 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC37423  Cardamine californica Doris K. Kildale 1927-1-23 2974 Humboldt Blue Slide in the Van Duzen River. Comment
  CAS-BOT-BC37425  Cardamine californica Doris K. Kildale 1929-4-27 7444 Humboldt Lord Ellis road near Bald Mountain junction. (road to Willow Creek). Comment
  UC162350  Cardamine californica J. P. Tracy 1905-2-26 2145 Humboldt immediate vicinity Eureka; immediate vicinity Eureka 0 Comment
  UC162351  Cardamine californica Joseph P. Tracy 1905-4-2 2159 Humboldt near Blue Lake; Northern Coast Ranges, near Blue Lake 30 Comment
  UC162881  Cardamine californica J. P. Tracy 1905-3-12 2150 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UCD114184  Cardamine californica Joseph M. DiTomaso 1976-3-28 358 Humboldt just east of summit on Highway 299, 8 miles west of Willow Creek. 762 Comment
  RSA167405  Cardamine californica var. integrifolia Joseph P. Tracy 1950-5-7 18651 Humboldt On the Redwood House Road, S of Redwood House 1 mile, on Yager Slope. (Head of South Yager Creek). Comment
  HSC26336  Cardamine oligosperma Thomas W. Nelson 1971-3-30 361 Humboldt Beside Williams Creek near Ferndale Comment
  RSA244996  Cardamine oligosperma H. S. Logsdon 1964-4-11 21 -a Humboldt 4.0 miles NE of Orick at Boyes Prairie. Comment
  HSC4143  Cardionema ramosissimum Norman H. Moe 1962-5-23 Humboldt Lanphere's Place Comment
  RSA0097053  Cardionema ramosissimum R. F. Thorne, Percy C. Everett 1965-8-5 35155 Humboldt Samoa Dunes. 3 Comment
  HSC5226  Carduus tenuiflorus D. E. Anderson 1963-5-25 2487 Humboldt 1 mi. N of Capetown Comment
  UC585637  Carex abrupta Joseph P. Tracy 1937-7-29 15580 Humboldt in meadow at McKay Camp South Fork Mountain 1676 Comment
  CAS-BOT-BC18010  Carex arcta Joseph Prince Tracy 1937-8-12 15645 Humboldt Snow Camp. 1402 Comment
  HSC98945  Carex athrostachya Cara Witte 2008-7-25 933 Humboldt Friday Ridge Rd. (6N08). Approximately 1 mile east of intersection with Forest Service Road 5N10. 1325 Comment
  CAS-BOT-BC19218  Carex barbarae Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UC562288  Carex barbarae Joseph P. Tracy 1932-6-14 10152 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC44056  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1977-7-1 3552 Humboldt Along Blanket Creek 1494 Comment
  UC1103068  Carex brainerdii Joseph P. Tracy 1942-6-23 17247 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CHSC97052  Carex buxbaumii Gordon Leppig 1999-7-9 1183 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common in northern section. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  JEPS26006  Carex canescens Joseph P. Tracy 1939-7-9 16318 Humboldt at Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  UC1103122  Carex densa Joseph P. Tracy 1937-5-31 15325 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC562267  Carex densa Joseph P. Tracy 1935-5-25 13855 Humboldt Fort Seward 106 Comment
  JEPS26000  Carex densa Joseph P. Tracy 1936-6-3 14848 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  JEPS113012  Carex deweyana subsp. leptopoda Dean W. Taylor 1991-8-15 12280 B Humboldt Snow Camp Lake 1310 Comment
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Apr 8 2012
  UC195347  Carex deweyana subsp. leptopoda Joseph P. Tracy 1916-6-25 4746 Humboldt Redwood Creek, at point E from Trinidad 152 Comment
  UC1103128  Carex echinata Joseph P. Tracy 1935-7-14 14085 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC562272  Carex echinata Joseph P. Tracy 1933-7-25 12845 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  JEPS25978  Carex echinata subsp. echinata Joseph P. Tracy 1932-7-14 10567 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC7163  Carex echinata subsp. phyllomanica Walker 1960-8-16 Humboldt 7 mi., K & K Comment
  CAS-BOT-BC20011  Carex feta Alice Eastwood; John Thomas Howell 1937-6-22 4743 Humboldt Near Blocksburg. Comment
  SEINET7827267 Image available Carex fracta J. P. Tracy 1950-7-2 18963 Humboldt "Fern Spring;" Happy Camp Mountain (Trinity Summit Range, 6 mi NE of Hawkins Bar.) Comment
  UC1103075  Carex globosa Joseph P. Tracy 1933-6-7 12521 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  CAS-BOT-BC28420  Carex gracilior Joseph Prince Tracy 1938-6-9 15878 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC146605  Carex gynodynama Alice Eastwood; John Thomas Howell 1937-6-23 4841 Humboldt 8 miles from Kneeland on road to Yager Comment
  CAS-BOT-BC20462  Carex harfordii Joseph Prince Tracy 1936-6-5 14858 Humboldt Fickle Hill. 6 miles SE of Arcata. 579 Comment
  UCR66610  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek at the South Fork of the Eel River 50 Comment
  POM292662  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of the Eel River Comment
  SEINET3836749 Image available Carex integra Joseph P. Tracy 1926-7-5 7723 Humboldt Near the Redwood House, on road to head of Yager Comment
  CHSC90279  Carex jonesii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8599 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  HSC102230  Carex jonesii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1151 Humboldt Patterson Meadows 1555 Comment
  UC562264  Carex jonesii Joseph P. Tracy 1932-7-15 10573 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC31468  Carex leptopoda W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula. Comment
  HSC48371  Carex leptopoda D. H. Norris May 1970 12464 Humboldt Gold-Bluff Beach, Prairie Creek Redwoods State Park Comment
  CAS-BOT-BC31664  Carex lyngbyei Joseph Prince Tracy 1938-7-15 16069 Humboldt In salt marsh and edges of sloughs, Mouth of Eel River. 3 Comment
  HSC85707  Carex mendocinensis L. P. Janeway 1982-6-20 14 Humboldt S of Horse Mtn., along Rd. 6N36, 100 m N of Titlow Hill Rd. 1384 Comment
  UC562669  Carex multicostata Joseph P. Tracy 1927-7-4 8233 Humboldt Iaqua North Coast Ranges 609 Comment
  CAS-BOT-BC119544  Carex nudata L. P. Janeway 1983-7-23 437 Humboldt Hoopa quad. Along the W side Klamath River at Aikens Creek. 91 Comment
  UC202482  Carex nudata J. P. Tracy 1903-5-22 1885 Humboldt Alder Point, Cahto Creek 152 Comment
  CHSC2106  Carex obnupta M. Anthony 1937-5-15 Humboldt Humboldt State College. Comment
  CHSC84722  Carex obnupta L. P. Janeway 2003-7-27 7925 Humboldt North Coast. Edge of marsh on south side of southwest end of Hwy 101 causeway across Big Lagoon. 2 Comment
  UC202449  Carex obnupta Joseph P. Tracy 1906-8-18 2546 Humboldt Eureka Northern Coast Region 0 Comment
  UC562323  Carex obnupta Joseph P. Tracy 1934-7-30 13503 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  SD51256  Carex obnupta Darley F. Howe 1961-8-1 3107 Humboldt Under Picea; 3 miles north of Arcata. Comment
  UC585634  Carex ovalis Joseph P. Tracy 1937-8-7 15617 Humboldt Murphy Ridge Bald Mt. 914 Comment
  CAS-BOT-BC119233  Carex pachystachya Joseph Prince Tracy 1932-7-14 10548 Humboldt Trinity Summit. Corral Prairie in Wet meadow. 1584 Comment
  HSC32420  Carex pansa Rudolf W. Becking 1974-6-15 Humboldt Between Samoa and Fairhaven, W of connecting road Comment
  CAS-BOT-BC118005  Carex rossii Joseph Prince Tracy 1949-5-8 18295 Humboldt Carlotta. Open flat by old Strong's District School House, 5 mi E of town. 60 Comment
  CHSC102857  Carex subbracteata Peter F. Zika 2009-6-16 24497 Humboldt Outer North Coast Range. Above Chezen Road, at junction with Route 299; between Lord-Ellis and Berry summits. 510 Comment
  JEPS25972  Carex subbracteata Joseph P. Tracy 1935-5-25 13885 Humboldt Dobbyn Creek 152 Comment
  SEINET7577056 Image available Carex subbracteata Andrew L. Hipp 1999-5-31 448 Humboldt Blocksburg, 1/8 mi N of the Blocksburg Dump, Alder Pt Road. 503 Comment
  UC1103099  Carex subfusca Joseph P. Tracy 1938-7-7 16030 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  NY11384  Carex tracyi J. P. Tracy 1914-7-4 4547 Humboldt "High Prairie" on Bald Mountain 1066.8 Comment
  HSC7084  Carex tumulicola H. E. Parks 1924-8-9 2444 Humboldt Near Carlotta Comment
  UC1103615  Carex vesicaria var. major Joseph P. Tracy 1932-8-21 10368 Humboldt lower w foothills Chaparral Mountain (Three Cabins); North Coast Ranges 457 Comment
  HSC96343  Carex viridula subsp. viridula Gordon Leppig 1999-10-3 1258 Humboldt Big Lagoon Bog, Big Lagoon County Park, N end of fen 3 Comment
  UC1103605  Carex viridula var. viridula Joseph P. Tracy 1934-10-21 13693 Humboldt in front of South End Stone Lagoon (Dry Lagoon) 3 Comment
  HSC59804  Carpobrotus chilensis Clark L. Miller 1979-5-5 4123 Humboldt Along cliffs off Patricks Point Drive. Comment
  HSC59487  Carpobrotus edulis M. A. Ericksen 1979-4-29 238 Humboldt Across from the Samoa Cookhouse, Samoa, on Samoa Peninsula. Comment
  CAS-BOT-BC249129  Castilleja affinis Doris K. Kildale 1926-6-8 2130 Humboldt Bug Creek 792 Comment
  HSC59736  Castilleja affinis subsp. litoralis Clark L. Miller 1979-5-13 6127 Humboldt N of Trinidad along Patricks Point Dr. 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
  UC275302  Castilleja ambigua subsp. ambigua R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  HSC90430  Castilleja ambigua subsp. humboldtiensis Jean Hanson 1980-6-22 97 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  HSC97237  Castilleja ambigua subsp. humboldtiensis Thomas W. Nelson, Jane Nelson 2004-4-20 9182 Humboldt At estuary to Elk River, SE of mouth 2 Comment
  SBBG7041  Castilleja exserta subsp. exserta H. and M. Dearing 1939-5-25 3433 Humboldt sand dunes near Samoa Comment
  HSC31218  Castilleja pruinosa D. E. Anderson 1972-6-20 5731 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC55597  Castilleja pruinosa Walter Overton, Marvin Butler 1979-7-23 9410 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC99043  Castilleja pruinosa Cara Witte 2008-6-4 678 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  SBBG68608  Castilleja rubicundula subsp. lithospermoides H. E. Parks, J. P. Tracy 1930-5-25 796 Humboldt vicinity of Bridgeville, Laribee Valley (Larabee Valley) Comment
  HSC98535  Ceanothus arcuatus C. Witte 2007-5-17 30 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  UC668171  Ceanothus cordulatus Joseph P. Tracy 1933-7-11 12681 Humboldt Cold Springs Grouse Mt. 1432 Comment
  UC1193330  Ceanothus cuneatus var. cuneatus K. Cuff Sep 1950 125 Humboldt 6 mi nw Garberville (rocky ridgecrest of Bear Butte); Quad. 29C1 762 Comment
  UC249581  Ceanothus cuneatus var. cuneatus Joseph P. Tracy 1922-4-30 5998 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC43220  Ceanothus foliosus R. Sutherland 1976-5-18 2 .18576 Humboldt 274 Comment
  HSC37603  Ceanothus foliosus var. foliosus R. Sutherland 1975-5-13 15 .13575 Humboldt Brushy flat 509 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
  RSA134579  Ceanothus incanus Percy C. Everett, E. K. Balls 1959-10-26 23977 Humboldt 6 mi SE from Honeydew on Old Coast Road to Ettersberg. 518 Comment
  SD230281  Ceanothus incanus Louis C. Wheeler 1959-8-1 7620 Humboldt Queens Peak Mine Comment
  POM118616  Ceanothus incanus Marcus E. Jones 1924-4-28 s.n. Humboldt Sagtorville Comment
  HSC101655  Ceanothus oliganthus var. sorediatus J. P. Smith, J. O. Sawyer 2011-4-23 13115 Humboldt Along Salmon Creek Rd., 2.5 miles from its Junction with U.S. 101 91 Comment
  SBBG116557  Ceanothus oliganthus var. sorediatus D. H. Wilken 2003-7-22 16174 Humboldt near Windy Nip Gap, Mattole Rd, 1.5 km SW of Cathy's Pk 670 Comment
  HSC36679  Ceanothus parryi R. Sutherland 1975-5-2 11 .2575 Humboldt County rd. at S Fork Eeel River 95 Comment
  HSC43179  Ceanothus parryi R. Sutherland 1975-6-19 2 .19675 Humboldt 2 mi NE of Briceland 178 Comment
  UC1071292  Ceanothus prostratus A. E. Wieslander 1931-5-19 203 Humboldt near Orleans; Klamath Forest, Hoopa Quadrangle Comment
  UC502969  Ceanothus pumilus Joseph P. Tracy 1927-5-15 8056 Humboldt Hoopa Mountain. On road west from Hoopa Valley 914 Comment
  CAS-BOT-BC52990  Ceanothus thyrsiflorus Duncan Dunning 1921-10-2 705 Humboldt Trinidad 30 Comment
  JEPS42139  Ceanothus thyrsiflorus W. L. Jepson 1902-6-24 1928 Humboldt near Angel's Ranch (between Korbel and Acorn) 274 Comment
  SEINET3837108 Image available Ceanothus thyrsiflorus Joseph P. Tracy 1935-6-2 13924 Humboldt Big Lagoon 61 Comment
  SBBG71387  Ceanothus thyrsiflorus var. thyrsiflorus R. Hartwell 1938-8-6 Humboldt above Arcata, near coast Comment
  JEPS42318  Ceanothus velutinus W. L. Jepson 1902-6-28 1949 Humboldt near Redwood Creek (High ridge, Acorn P.O. to Green Point Ranch) 1066 Comment
  RSA21587  Ceanothus velutinus var. laevigatus Carl B. Wolf 1937-8-13 9232 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC1222948  Centaurea solstitialis Joseph P. Tracy 1948-9-20 18216 Humboldt vicinity of Hosler Creek; Hoopa Valley, Hosler Creek 91 Comment
  UC906756  Centaurium muehlenbergii Joseph P. Tracy 1941-9-7 17013 Humboldt near Blue Lake; Mad River 15 Comment
  RSA12461  Centaurium muehlenbergii Carl B. Wolf 1934-6-30 5832 Humboldt One half mile from Briceland on road to Garberville. 91 Comment
  RSA391522  Centaurium muehlenbergii M. V. Hood 1940-08 s.n. Humboldt Eel River - near Redway. 457 Comment
  BLMAR319  Centaurium tenuiflorum Jennifer Anthony-Wheeler 2002-7-23 319 Humboldt Headwaters Forest Reserve, salmos pass parking lot 353 Comment
  HSC72635  Cephalanthera austiniae J. P. Smith 1977-7-3 9248 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  JEPS64313  Cephalanthera austiniae W. L. Jepson 1902-7-14 2027 Humboldt Mud Spring to Summit Trinity Summit 1219 Comment
  RSA436984  Cephalanthera austiniae Gary D. Wallace 1973-7-11 1250 Humboldt Eastern part of Prairie Creek Redwoods State Park 427 Comment
  SBBG1996  Cerastium arvense H. and M. Dearing 1933-5-17 239 Humboldt N of Arcata Comment
  UC1052447  Cerastium glomeratum H. E. and S. T. Parks 1944-4-1 24279 Humboldt Trinidad, Spruce Cove 60 Comment
  RSA46727  Cercis occidentalis Doris K. Kildale 1938-1 15367 Humboldt Hoopa trip. Comment
  CAS-BOT-BC85659  Chamaecyparis lawsoniana C. Hart Merriam 1920-9-19 s.n. Humboldt East slope Berry Mt. west of Willow Creek (on Trinity River) Comment
  SBBG56423  Chamaecyparis lawsoniana M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  UC535755  Chamaesyce serpyllifolia Eleanor Armstrong 1934-8-6 1126 Humboldt Richardson Grove 121 Comment
  CAS-BOT-BC166040  Chamerion angustifolium subsp. circumvagum Peter H. Raven; R. Snow 1958-7-21 13651 Humboldt 2.9 miles south of Ferndale on road to Cape Mendocino Comment
  HSC55122  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-8-1 11922 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  HSC99520  Chamerion angustifolium subsp. circumvagum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 183 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC314615  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1926-7-25 7755 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC55119  Cheilanthes gracillima Gilbert Muth 1979-8-1 11897 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC197915  Cheilanthes gracillima Joseph P. Tracy 1912-7-26 3841 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC503061  Cheilanthes gracillima Joseph P. Tracy 1932-7-17 10683 Humboldt head of Devil's Hole; Klamath Mts, Trinity Summit 1828 Comment
  UC132200  Chenopodium album Joseph P. Tracy 1905-10-1 2394 Humboldt near mouth of Elk River; Northern Coast Range, region about Humboldt Bay 0 Comment
  CAS-BOT-BC451384  Chimaphila menziesii Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  UC1197601  Chimaphila menziesii Joseph P. Tracy 1947-7-9 17855 Humboldt Horse Mt. 1432 Comment
  CAS-BOT-BC451495  Chimaphila umbellata M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N of Garberville Comment
  HSC54226  Chimaphila umbellata Griswold, Butler 1979-7-12 7291 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  CAS-BOT-BC452227  Chimaphila umbellata Volney Rattan 1878-6-1 s.n. Humboldt North of Mad River Comment
  HSC99516  Chimaphila umbellata subsp. occidentalis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 179 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC74452  Chrysolepis chrysophylla Gail Newton 1980-8-10 2002 Humboldt Near Blake Mtn. 1798 Comment
  SEINET8946802  Chrysolepis chrysophylla W. D. Billings 1940-6-25 1352 Humboldt Cedar Creek, 35 miles east of Arcata Comment
  HSC54607  Chrysolepis chrysophylla var. minor Overton, Butler 1979-7-24 9699 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  JEPS46999  Cicendia quadrangularis Joseph P. Tracy 1935-5-25 13902 Humboldt Dobbyn Creek 152 Comment
  HSC36262  Cicuta douglasii John Rehling 1974-8-20 24 Humboldt Big Lagoon Bog Comment
  HSC8634  Cicuta douglasii D. E. Anderson 1961-9-30 1850 Humboldt Blue Lake Comment
  JEPS59311  Cirsium arvense W. L. Jepson 1936-8-12 17891 Humboldt South Fork of Eel River, Philipsville Comment
  CAS-BOT-BC284442  Cirsium brevistylum John Thomas Howell 1931-6-17 6720 Humboldt 8 miles n. of Arcata Comment
  CAS-BOT-BC285529  Cirsium occidentale var. candidissimum L. B. Kildale 1930-7-7 10261 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  CAS-BOT-BC285533  Cirsium occidentale var. candidissimum Carl B. Wolf 1934-6-30 5839 Humboldt 7 mi. from Shelter Cove on road to Briceland 152 Comment
  UCD148530  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt near Berry Summit on Titlow Hill Road, 3.9 miles south of Highway 229. Comment
  SEINET11836350  Cirsium pastoris J. P. Tracy 1942-1 17302 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1223062  Cirsium remotifolium Joseph P. Tracy 1941-8-12 16976 Humboldt 2 mi s of town of Field's Landing 6 Comment
  UC668206  Cirsium remotifolium Joseph P. Tracy 1938-7-6 16025 Humboldt Big Lagoon 30 Comment
  HSC40956  Cirsium vulgare Linda M. Barker 1976-8-24 1684 Humboldt 3 mi. W of Arcata Comment
  RSA18145  Cirsium vulgare C. B. Wolf 1927-8-22 803 Humboldt Big Lagoon. Comment
  UC183664  Clarkia amoena Joseph P. Tracy 1912-7-21 3758 Humboldt Alton Northern Coast Region 30 Comment
  UC1196996  Clarkia amoena Joseph P. Tracy 1921-8-28 5947 Humboldt Guthrie Gulch Northern Coast Ranges 91 Comment
  JEPS43688  Clarkia amoena subsp. huntiana Milo S. Baker 1923-7-20 68 Humboldt Redwood House North Coast Comment
  SD61036  Clarkia amoena subsp. huntiana Darley F. Howe 1964-8-10 3951 Humboldt 7.5 miles from Ferndale on road to Petrolia. 487 Comment
  HSC22848  Clarkia concinna subsp. concinna D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5055 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC37508  Clarkia gracilis J. D. Ackerman, A. M. Montalvo 1975-6-22 487 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  UC1222857  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1950-6-15 18806 Humboldt 7 mi n Harris; Mail Ridge Comment
  UC1196987  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy July, 1908 2784 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 762 Comment
  HSC43847  Clarkia purpurea subsp. viminea Maralyn O'Meara 1974-7-17 556 Humboldt Kneeland Comment
  HSC67185  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5421 Humboldt Along road to Red Mtn., 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  HSC73821  Claytonia lanceolata M. A. Baker 1980-7-19 3035 Humboldt Near Bret Hole. 1814 Comment
  HSC40905  Claytonia perfoliata subsp. intermontana J. O. Sawyer 1970-4-24 2191 Humboldt Along FS Rd. 7N04 at Cedar Creek below Groves Prairie Comment
  HSC17678  Claytonia perfoliata subsp. mexicana J. L. Baker 1965-4-13 47 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  CAS-BOT-BC440094  Claytonia perfoliata subsp. perfoliata Doris Kildale 1931-5-10 10547 Humboldt Snow Camp Comment
  HSC71826  Claytonia saxosa Thomas W. Nelson, Jane P. Nelson 1980-6-27 5957 Humboldt Saddle between Mt. Lassic and peak to E 1677 Comment
  CAS-BOT-BC443902  Claytonia sibirica Doris Kildale 1931-5-10 10572 Humboldt Snow Camp Comment
  UC162972  Claytonia sibirica Joseph P. Tracy 1908-6 2860 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC412615  Claytonia sibirica Mrs. M. H. Manning Humboldt near Hupa 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
  HSC17725  Claytonia sibirica D. E. Anderson 1962-3-31 1970 Humboldt Coastal area of Prairie Creek State Park Comment
  HSC97175  Claytonia sibirica Erin Lonergan, Benjamin Hart 2007-6-13 8 Humboldt 1 mi. E of FS Rd. NF1 on FS Rd. 5N04 1524 Comment
  UC1282109  Claytonia sibirica Victor Duran 1933-5-11 3407 Humboldt 6 mi w Bridgeville; Van Duzen River Comment
  HSC62682  Claytonia washingtoniana Michelle Stevens 1979-4-21 53 Humboldt Ponds across from Clam Beach 0 Comment
  HSC18086  Clematis lasiantha Doris K. Kildale 1925-6-27 771 Humboldt Mouth of Yager Creek Comment
  UCSB12091  Clintonia andrewsiana Dearing, Hugh; Dearing, Margaret 1931-5-16 Humboldt Weott Comment
  SEINET12046245  Clintonia andrewsiana K. S. Erdman 1970-1 4796 Humboldt Cal-Barrow Road, 3mi E of US101 at boundary of Prairie Creek State Park (Redwood National Park) Comment
  SEINET12047066  Clintonia andrewsiana Unknown 1972-1 s.n. Humboldt Humboldt State University Forest, W of campus with city limits of Arcata 198 Comment
  HSC74316  Collinsia greenei M. A. Baker 1980-7-11 2782 Humboldt Near Red Mtn. 1341 Comment
  RSA46692  Collinsia greenei Doris K. Kildale 1938-6-5 15393 Humboldt Horse Mountain Comment
  JEPS6199  Collinsia linearis Joseph P. Tracy 1932-7-12 10439 Humboldt Corral Prairie, open places Corral Prairie; Trinity Summit 1584 Comment
  UC169873  Collinsia parviflora V. Rattan Humboldt Hoopa valley Comment
  RSA0117229  Collinsia rattanii S. S. Tillett 1956-7-6 623 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  JEPS6349  Collinsia sparsiflora var. collina Joseph P. Tracy 1916-5-2 4685 Humboldt At Eureka, from lower slopes of Buck Mountain. 762 Comment
  HSC93919  Collinsia sparsiflora var. sparsiflora D. K. Imper 1997-5-5 Humboldt Kneeland Prairie, E of airport runway 854 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
  UC146169  Collomia grandiflora Joseph P. Tracy 1908-6 2872 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  HSC89514  Collomia heterophylla M. Roantree 1985-4-28 20 Humboldt W side of Trinidad Head, along trail Comment
  UC1197847  Collomia heterophylla Joseph P. Tracy 1908-6 2702 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  HSC45803  Collomia heterophylla J. P. Smith, J. O. Sawyer 1976-5-2 8629 Humboldt S. R. 96, 4.9 mi. N of its junction with S.R. 299 122 Comment
  UC133646  Collomia heterophylla Joseph P. Tracy 1909-7-31 3044 Humboldt in woods on hillside Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1197865  Collomia tracyi Joseph P. Tracy 1939-8-16 16416 Humboldt gravelly places near Clear Lake; North Coast Ranges 1524 Comment
  UC978533  Collomia tracyi Joseph P. Tracy 1927-6-12 8161 Humboldt in slide rock Northern Coast Ranges, Horse Mountain 1066 Comment
  UC1197343  Conioselinum pacificum Joseph P. Tracy 1914-7-12 4579 Humboldt near Indianola; Northern Coast Region, Humboldt Bay Region 0 Comment
  NY643138  Convolvulus arvensis H. P. Chandler 06 1901 1463 Humboldt Klamath River 365.8 Comment
  UC127716  Conyza canadensis Harley P. Chandler May 1901 1241 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  JEPS23516  Coptis laciniata Joseph P. Tracy 1941-4-8 16856 Humboldt Willow Creek Canyon; along Trinity Hwy 762 Comment
  HSC36648  Corallorhiza maculata J. D. Ackerman 1975-6-4 444 Humboldt Redwood National Park: 4 mi. E of Hwy. 101 on Bald Hills Rd. 335 Comment
  HSC95706  Corallorhiza mertensiana Juha Pykala, D. H. Norris 1987-6-10 1467 Humboldt 4.5 mi. N of Weitchpec, Blue Lake 838 Comment
  HSC27568  Corallorhiza mertensiana J. D. Ackerman, A. Montalvo 1973-7-4 95 Humboldt Grogan Hole Rd, 18 mi. E of Hoopa Comment
  HSC63024  Corallorhiza striata M. A. Baker 1979-6-24 903 Humboldt 2 km. S of Brush Mtn. Comment
  SD42328  Cordylanthus tenuis subsp. viscidus Carl B. Wolf 1937-8-13 9225 Humboldt North Coast Range, 8 mi E of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  CAS-BOT-BC101149  Corethrogyne filaginifolia L. R. Abrams 1916-7-18 6096 Humboldt Arcata to Trinidad Comment
  HSC5415  Corethrogyne filaginifolia D. E. Anderson 1963-5-25 2494 Humboldt 4 mi. W of Petrolia Comment
  UC204865  Corethrogyne filaginifolia J. P. Tracy 1918-7-5 5025 Humboldt Mc Kee's Field; White Thorn Valley 304 Comment
  CAS-BOT-BC212007  Cornus nuttallii John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  RSA697172  Cornus nuttallii J. R. Bruff 1937-8-17 919 Humboldt Richardson Grove. Comment
  UC1196901  Cornus nuttallii Joseph P. Tracy 1935-4-20 13786 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC1196911  Cornus nuttallii Joseph P. Tracy 1908-6-9 2675 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCSB24633  Cornus nuttallii Jensen, Karen 1965-4-15 Humboldt 1 km. west of Hwy. 101 by Miranda turnoff 91 Comment
  CAS-BOT-BC212178  Cornus sericea Joseph P. Tracy 1933-6-7 12519 Humboldt Blue Slide on Van Duzen River 91 Comment
  UC502981  Cornus sericea subsp. sericea Joseph P. Tracy 1929-8-18 8654 Humboldt opposite Buck Mt. (on Van Duzen R., Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R., Dinsmore's Ranch 670 Comment
  CAS-BOT-BC210541  Cornus sessilis Doris Kildale Gillespie 1941-4-16 s.n. Humboldt Unspecified Comment
  SJSU2584  Cornus sessilis H. L. Buckalew 1962-7-2 Humboldt junction of Willow Cr & E Fork Willow Cr on Hwy 299 Comment
  HSC97380  Cortaderia jubata J. P. Smith 2007-9-29 12426 Humboldt Along Hilfiker Ln., just N of the Elk River Sewage Treatment Plant 2 Comment
  UC1197936  Corylus californica Joseph P. Tracy 1949-7-19 18375 Humboldt at Friday Camp 1219 Comment
  BLMAR492  Corylus cornuta subsp. californica Jennifer Wheeler 2009-4-30 492 Humboldt King range, Hidden Valley trail; near overlook Comment
  CAS-BOT-BC180307  Corylus cornuta subsp. californica H. E. McMinn 1922-8-4 346 Humboldt Along Van Duzen River Comment
  LA204121  Corylus cornuta subsp. californica Carl Epling; William Robison 1935-7-25 sn Humboldt Devoy Grove of Redwoods Comment
  RSA46786  Corylus cornuta var. californica Doris Kildale Gillespie 1937-8-12 15252 Humboldt South Fork Mountain. Comment
  RSA729895  Cotoneaster simonsii Peter F. Zika 2007-7-19 23174 Humboldt Hookton Road, S end of Humboldt Bay, (NCo, North Coast). 10 Comment
  UC1223034  Cotula australis J. P. Tracy 1943-4-10 17414 Humboldt Eureka Comment
  UC667078  Crassula aquatica Joseph P. Tracy 1935-5-30 13919 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC77347  Crassula connata L. P. Janeway 1983-5-1 256 Humboldt W of Samoa Rd. and N of Coast Guard lands 6 Comment
  CAS-BOT-BC290584  Crepis capillaris Doris K. Kildale 1925-7-17 1073 Humboldt Cutten Tract - Eureka Comment
  CAS-BOT-BC291487  Crepis capillaris L. R. Abrams 1927-8-31 12055 Humboldt Marshes between Arcata and Eureka along highway Comment
  HSC5436  Crepis pleurocarpa H. E. Parks, J. P. Tracy 1934-6-27 11037 Humboldt Horse Mtn. Comment
  OBI78670  Crepis tectorum Bresa Martin 2013-11-11 2 Humboldt At Humboldt State University on small walking path above bridge that led from Cypress Apartments. Twenty yards behind the track and football field. 30 Comment
  HSC58122  Cryptantha affinis G. L. Clifton, Griswold 1979-8-1 12093 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1239656  Cryptantha flaccida Joseph P. Tracy 1937-7-19 15455 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  HSC33754  Cryptantha leiocarpa A. Montalvo 1975-5-24 284 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC1239664  Cryptantha leiocarpa Joseph P. Tracy 1904-7-4 2112 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC3587  Cryptantha torreyana H. E. Parks, J. P. Tracy 1934-6-27 11058 Humboldt Grouse Mtn. Comment
  HSC57211  Cryptantha torreyana Griswold, Butler 1979-7-12 7246 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC1239650  Cryptantha torreyana Joseph P. Tracy 1923-6-3 6259 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC70813  Cryptogramma acrostichoides Gail Newton 1980-7-24 1779 Humboldt Near Somes Mtn. 1615 Comment
  UC502914  Cupressus lawsoniana Joseph P. Tracy 1927-6-12 8141 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UCD60076  Cynodon dactylon Joseph P. Tracy 1940-10-17 16763 Humboldt South Fork Station. 60 Comment
  RSA24187  Cynoglossum grande C. B. Wolf 1941-3-2 9987 Humboldt N Coast Range. Bull Creek-Petrolia Road. 12 miles W of Redwood Highway. 457 Comment
  HSC74370  Cynoglossum occidentale M. A. Baker 1980-5-18 1289 Humboldt Near Black Mtn. 1006 Comment
  UC582617  Cynoglossum occidentale Joseph P. Tracy 1936-8-8 15125 Humboldt on Ridge 2 mi. e. Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  HSC9520  Cynosurus echinatus True Hoyle 1967-7-24 29067 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass Comment
  POM364982  Cynosurus echinatus Jacqueline Greenleaf 1980-8-5 288 Humboldt Dairy Creek 294 Comment
  UC1056066  Cynosurus echinatus J. I. Mallory 1955-6-7 114 Humboldt n end Luke Prairie; Quad. 29-B-3, n end of Luke Prairie 350 Comment
  JEPS64088  Cyperus bipartitus Joseph P. Tracy 1938-8-14 16113 Humboldt mt. slopes w. of its mouth S. Fork Trinity R. 304 Comment
  CAS-BOT-BC114623  Cyperus eragrostis Joseph Prince Tracy 1937-8-3 15612 Humboldt Near Blue Lake, along Mad River. 15 Comment
  HSC23677  Cyperus eragrostis Tim Baroni 1971-7-5 91 Humboldt 8 mi. E of Petrolia Comment
  UC668035  Cyperus eragrostis Joseph P. Tracy 1932-10-30 10897 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  HSC55069  Cystopteris fragilis G. L. Clifton, Griswold 1979-7-31 11649 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC503060  Cystopteris fragilis Joseph P. Tracy 1932-7-17 10685 Humboldt head of Devil's Hole Trinity Summit; Klamath Mts. 1828 Comment
  UCSB29351  Cystopteris fragilis Phelps, M. 1972-3-22 Humboldt 0.7 mi. along Benbow Drive north, 50 yds. West of roadside in creekbed, Benbow 167 Comment
  HSC14666  Cytisus scoparius R. E. Hafenfeld 1965-5-13 67 Humboldt County Rd. 1/2 mi. from Gold Bluff Beach Rd. Comment
  CAS-BOT-BC189764  Dactylis glomerata F. W. Peirson 1933-7-12 3655 Humboldt 5 miles north of Orick. Comment
  UCSC000025  Dactylis glomerata H. S. Yates 1936-6-23 5852 Humboldt 2 miles E. of the Mad River Mad River - Eureka 30 Comment
  UCD60964  Danthonia californica Joseph P. Tracy 1951-6-26 19571 a Humboldt Snow Camp and Twin Lakes vicinity. Comment
  CAS-BOT-BC194370  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain 1402 Comment
  UCD61366  Danthonia unispicata Joseph P. Tracy 1951-6-26 19571 Humboldt Snow Camp and Twin Lakes vicinity. Comment
  HSC39185  Darmera peltata D. E. Anderson, J. P. Smith 1971-6-28 - 1215 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  CAS-BOT-BC420360  Darmera peltata Volney Rattan 1903-1-1 s.n. Humboldt unspecified Comment
  HSC21481  Daucus pusillus D. E. Anderson 1962-7-10 2247 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  UC420522  Daucus pusillus Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5417 Humboldt near Hubbards Comment
  HSC24780  Delairea odorata Barbara Kelly 1971-11-15 230 Humboldt North Bank Rd. next to Hwy. 101, McKinleyville Comment
  HSC97582  Delphinium decorum subsp. tracyi Cara Witte 2007-5-23 105 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  HSC36240  Delphinium decorum subsp. tracyi John Rehling 1975-5-12 71 Humboldt Bald Hills Area, 2 mi. up Williams Ridge Rd. Comment
  HSC95837  Delphinium decorum subsp. tracyi Kevin Thomas 2004-4-26 14 Humboldt Titlow Hill Rd. Comment
  HSC75491  Delphinium depauperatum J. O. Sawyer 1980-7-18 3632 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. 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
  SEINET12099543  Delphinium hesperium H. P. Chandler 1901-1 1410 Humboldt Klamath River 1000 Comment
  UC160954  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1909-7-31 3041 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1222579  Delphinium hesperium subsp. pallescens Joseph P. Tracy 1950-6-23 18875 Humboldt hillside along creek 3 mi n Blocksburg; Larrabee Creek Comment
  CAS-BOT-BC10137  Delphinium menziesii Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 2.5 mi. NE of Cape Town on road to Ferndale Comment
  UC1196334  Delphinium trolliifolium Joseph P. Tracy 1947-4-27 17675 Humboldt Table Bluff 60 Comment
  UCD131743  Delphinium trolliifolium Collector unknown 2013-4-23 s.n. Humboldt Near Ferndale. 914 Comment
  HSC36241  Delphinium trolliifolium John Rehling 1975-5-12 72 Humboldt 4 mi. S of Orick on Hwy. 101 Comment
  JEPS23302  Delphinium trolliifolium W. L. Jepson 1934-5-6 16681 Humboldt Little Larrabee Creek Comment
  UC1131487  Deschampsia cespitosa subsp. beringensis H. L. Person 1932-5-11 Humboldt near Arcata Arcata; Eureka Quad. Comment
  CAS-BOT-BC194292  Deschampsia cespitosa subsp. cespitosa Carl B. Wolf 1927-8-22 794 Humboldt Big Lagoon Comment
  SEINET3927645  Deschampsia danthonioides Joseph P. Tracy 1950-6-25 18901 Humboldt West side of Buck Mt. 3 miles south of Burr Valley.; 0 1219 Comment
  CAS-BOT-BC174313  Deschampsia elongata J. O. Sawyer; R. J. Cole 1977-7-3 3019 Humboldt Environs of Mud Spring. Big Hill Road (F.S. 8N01) 1524 Comment
  HSC53938  Deschampsia elongata Griswold, Butler 1979-7-11 6970 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  SEINET3927588  Deschampsia elongata D. E. Anderson 1970-5-21 5081 Humboldt Scotia Bluffs.; 0 Comment
  UCD63577  Deschampsia elongata A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3621 Humboldt 4 miles north of Bridgeville. Comment
  SEINET11682989  Deschampsia elongata K. S. Erdman 1970-1 4813 Humboldt Fern Canyon at mouth of Home Creek, Prairie Creek State Park (Redwood N.P.) Comment
  JEPS9737  Dicentra formosa Joseph P. Tracy 1933-5-28 12414 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC1362284  Dicentra formosa Kingsley R. Stern 1964-6-16 2112 Humboldt 1.2 mi se Orick (vicinity Orick Dump) Comment
  JEPS9734  Dicentra pauciflora Joseph P. Tracy 1933-7-16 12776 Humboldt near McKay Camp (South Fork Mountain); North Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC209194  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt Along river, Willow Creek, Trinity River Valley. 152 Comment
  SEINET200953 Image available Dichanthelium oligosanthes subsp. scribnerianum Joseph P. Tracy 1931-5-17 9428 Humboldt Rocky places along river. Trinity River Valley at Willow Creek Comment
  SEINET12053835  Dichelostemma capitatum J. P. Tracey 1951-1 19404 Humboldt toward Ashfield Butte, Kneeland Prairie Comment
  UC15032  Dichelostemma capitatum J. Burtt Davy 1899-6-11 5430 Humboldt Hubbard's Station to Elk Prairie Comment
  CAS-BOT-BC501014  Dichelostemma ida-maia Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC501020  Dichelostemma ida-maia D. E. Breedlove 1961-7-4 649 Humboldt 10.9 miles west of Willow Creek on US 299 822 Comment
  JEPS5679  Dichelostemma ida-maia Milo S. Baker 1923-7-20 47 b Humboldt near head of Yager Creek Comment
  RSA183023  Dichelostemma ida-maia Lee W. Lenz 1966-5-24 24658 Humboldt W of Berry Summit, US 299. Comment
  SEINET3885614  Dichelostemma ida-maia D. W. McNeal 1977-6-6 2045 Humboldt Dry shaded hillside above the Bridgeville-Kneeland Rd., 0.4 mi. N. of Hwy. #36.; 0 Comment
  HSC44761  Digitalis purpurea Maralyn O'Meara 1972-6-8 94 Humboldt Along Bald Hills Rd., 8 mi. E of junction with Hwy. 101 Comment
  HSC62775  Digitalis purpurea M. Dean Griswold Jr. 1979-5-30 108 Humboldt By Cypress Hall, HSU campus Comment
  SEINET12269089  Digitalis purpurea K. S. Erdman 1970-1 4770 Humboldt Counts Hill Prairie on Bald Hill Rd Se of Orick 13 mi 853 Comment
  UC146218  Disporum smithii Joseph P. Tracy 1908-6-9 2662 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  SEINET4170370  Disporum smithii Unknown 1933-5-21 12209 Humboldt McClellan Mountain 671 Comment
  HSC9631  Distichlis spicata J. D. Wilder 1965-5-19 46 Humboldt Along Humboldt Bay, N end. Comment
  HSC17871  Dodecatheon hendersonii Elrid H. Spinas 1948-5-15 8 Humboldt Horse Mtn. Comment
  HSC34498  Dodecatheon hendersonii J. D. Ackerman 1975-5-3 439 Humboldt Ca. 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection W of Redwood Creek Comment
  JEPS14701  Dodecatheon jeffreyi Joseph P. Tracy 1927-8-22 8340 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  JEPS14441  Downingia elegans W. L. Jepson 1927-7-3 12363 Humboldt Miranda South Fork of Eel River 228 Comment
  UC552294  Draba verna Joseph P. Tracy 1934-3-11 13147 Humboldt gravel bar of Klamath River North Coast Ranges, Klamath River, Weitchpec 91 Comment
  JEPS87089  Drymocallis glandulosa var. reflexa Teresa Sholars with Betty Steckmeyer 1988-6-25 916 Humboldt 6.2 mi s of Doe Spring on road to Mad River ((F.S. Road 6N01MP)) Comment
  CAS-BOT-BC536647  Drymocallis pseudorupestris Doris K. Kildale 1927-7-22 3817 Humboldt Lassic peaks 1661 Comment
  HSC1034  Dryopteris arguta Gene S. Van Horn 1962-1-6 6 Humboldt 4 mi. E of Yager Cr. Bridge in Carlotta, on Hwy. 36, on bank overlooking the Van Duzen River 152 Comment
  JEPS4047  Dryopteris expansa Roland A. Dede 1952-12-6 2834 Humboldt Ferndale Comment
  JEPS35138  Dryopteris expansa Milo S. Baker 1923-7-16 20 Humboldt 4 mi se Eureka Comment
  POM188328  Dryopteris expansa Marcus E. Jones 1931-8-2 29171 Humboldt Klamath Comment
  UCSB30621  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
  UC668028  Dulichium arundinaceum Joseph P. Tracy 1938-9-25 16173 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  HSC101546  Ehrharta erecta J. P. Smith 2009-12-14 12703 Humboldt Along sidewalk at 980 Sixth St. in Arcata; weed Comment
  JEPS19336  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie; dried pond bed 60 Comment
  JEPS19330  Eleocharis bella Joseph P. Tracy 1935-7-27 14299 Humboldt McKay Prairie Trinity Summit 1584 Comment
  UC213005  Eleocharis bella Joseph P. Tracy 1920-8-15 5373 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 152 Comment
  UC1103666  Eleocharis macrostachya Joseph P. Tracy 1935-5-25 13849 Humboldt Fort Seward 106 Comment
  UC183688  Eleocharis macrostachya Joseph P. Tracy 1909-5-23 2973 Humboldt Eureka 0 Comment
  CAS-BOT-BC113113  Eleocharis obtusa Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  JEPS19323  Eleocharis pachycarpa Joseph P. Tracy 1926-7-25 7757 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC1103660  Eleocharis parishii Joseph P. Tracy 1919-5-31 5178 Humboldt near, shore of Lack pond Willow Creek; Trinity River Valley 152 Comment
  HSC77865  Eleocharis parvula L. J. Heflin 1984-5-13 5 Humboldt Hauser Marsh Comment
  RSA10130  Elymus X hansenii Joseph P. Tracy 1930-7-19 9054 Humboldt South Fork Mountain; open glades long summit near Blake Lookout 1738 Comment
  CAS-BOT-BC227348  Elymus elymoides Doris K. Kildale 1925-8-17 1260 Humboldt Trinity Summit 1917 Comment
  HSC58661  Elymus elymoides var. elymoides G. L. Clifton, Griswold 1979-7-1 11948 Humboldt Near Horse Trail Ridge, close to the town of Hoopa. 516 Comment
  HSC54604  Elymus glaucus Overton, Butler 1979-7-24 9688 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  SBBG53088  Elymus glaucus R. N. Philbrick, J. R. Haller 1976-6-25 8 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  UC186000  Elymus glaucus Joseph P. Tracy 1912-6-9 3659 Humboldt Alton Northern Coast Region 30 Comment
  UC53395  Elymus glaucus Joseph Burtt Davy and Walter C. Blasdale 1899-6-16 5565 Humboldt Alton Comment
  UCR32176  Elymus glaucus David J. Keil 1983-7-1 17280 Humboldt North Coast Range, Bull Creek Flats Road, 2.5 mi. NE of Honeydew Comment
  CAS-BOT-BC203477  Elymus glaucus subsp. glaucus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC98582  Elymus glaucus subsp. glaucus Cara Witte 2008-7-16 917 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  CAS-BOT-BC234111  Elymus multisetus Doris K. Kildale 1928-6-24 5273 Humboldt Horse Mountain 914 Comment
  HSC102236  Elymus ponticus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1160 Humboldt Andy's Camp 1564 Comment
  CAS-BOT-BC204332  Elymus trachycaulus subsp. trachycaulus David D. Keck 1944-7-11 5491 Humboldt 3 mi. N. E. of Capetown 152 Comment
  UC1103292  Elytrigia repens Joseph P. Tracy 1937-7-17 15434 Humboldt Eureka 60 Comment
  UC1198483  Epilobium brachycarpum Joseph P. Tracy 1937-7-19 15454 Humboldt lower foothills of Buck Mountain Northern Coast Ranges (nw slope) 762 Comment
  UC583060  Epilobium brachycarpum P. A. Munz 1936-8-10 14337 Humboldt 15 mi e Bridgeville (roadside); Little Van Duzen River Comment
  HSC34784  Epilobium canum subsp. canum R. E. Cooksey Sep 1972 58 Humboldt On Ave. of Giants 30 Comment
  CAS-BOT-BC166892  Epilobium canum subsp. latifolium Doris K. Kildale 1925-9-10 1110 Humboldt Bug Creek 792 Comment
  HSC53857  Epilobium ciliatum Griswold, Butler 1979-7-10 6328 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC48320  Epilobium ciliatum subsp. ciliatum Brad Klipfel 1973-8-3 311 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74500  Epilobium ciliatum subsp. ciliatum Gail Newton 1980-8-10 2047 Humboldt Near Blake Mtn. 1707 Comment
  UC161071  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1911-7-5 3323 Humboldt along creek near mouth (creek is tributary of Trinity River); Northern Coast Ranges, Willow Creek 304 Comment
  UCD20169  Epilobium ciliatum subsp. glandulosum J. M. Tucker 1948-9-3 1858 Humboldt Clear Lake, near junction of Friday Ridge Road and Horse Mountain-Grouce Mountain Road. Comment
  UC726596  Epilobium ciliatum subsp. watsonii A. A. Heller 1923-7-9 13785 Humboldt between Eureka and Fortuna Comment
  HSC98553  Epilobium densiflorum Cara Witte 2007-8-8 620 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  HSC98733  Epilobium densiflorum Cara Witte 2007-8-9 633 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1584 Comment
  UC668279  Epilobium densiflorum Joseph P. Tracy 1938-7-5 16003 Humboldt open flat by old Strong's District School House (5 mi e of Carlotta) 45 Comment
  HSC55081  Epilobium hallianum G. L. Clifton, Griswold 1979-7-31 11736 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC49636  Epilobium minutum J. P. Smith, J. O. Sawyer 1973-5-12 6700 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS109976  Epilobium oreganum Dean W. Taylor 2006-8-31 19633 Humboldt UNDERWOOD MOUNTAIN: meadowy opening in forest above the ''Hog Ranch'' site on the USGS map 883 Comment
  RSA75597  Epipactis gigantea Albert M. Vollmer, L. Beane 1951-6-11 139 Humboldt Along the Van Duzen River, at Bridgeville Comment
  UC62558  Equisetum hyemale subsp. affine P. E. Goddard July 1901 88 Humboldt Hupa Comment
  UC302063  Equisetum laevigatum Joseph P. Tracy 1913-6-16 4142 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, valley of Van duzen River 762 Comment
  HSC36227  Equisetum telmateia subsp. braunii John Rehling 1975-4-21 52 Humboldt Along Jolly Giant Creek behind HSU campus. Comment
  HSC37403  Equisetum telmateia subsp. braunii Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 512 Humboldt Along Lost Man Creek. 38 Comment
  HSC95578  Equisetum telmateia subsp. braunii Andrea Pickart 2002-3-31 23 Humboldt Arcata Marsh, Dan Hauser Marsh 0 Comment
  CAS-BOT-BC204430  Eragrostis cilianensis Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC284095  Eragrostis pectinacea var. pectinacea Peter Rubtzoff 1968-9-4 5958 Humboldt Goulds Bar, South Fork Eel River southeast of Weott Comment
  CAS-BOT-BC291174  Erechtites glomeratus Kenneth Clark 1980-4-18 597 Humboldt Shelter Cove. Dead Man's Gulch 42 Comment
  HSC5493  Erechtites glomeratus J. W. Johnson 1962-4-18 1261 Humboldt Arcata; N of the Hunt and Bull Farms, Samoa Peninsula Comment
  HSC79514  Erechtites glomeratus Kenneth Clark 1980-4-18 597 Humboldt Shelter Cove, middle alluvial terrace, Dead Man's Gulch 43 Comment
  SEINET10618699  Erechtites glomeratus Harold E. Parks, Susan T. Parks Parks 24033 Humboldt Spruce Cove, Trinidad. 61 Comment
  HSC81904  Eremogone congesta Thomas W. Nelson 1979-7-11 4994 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC57167  Erigeron aliceae Overton, Butler 1979-7-26 9972 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC100430  Erigeron canadensis Carl C. Marshall Oct 1886 347 Humboldt Near North Fork. Comment
  UCSB30605  Erigeron canadensis Edwards, David 1974-7-30 Humboldt In NW corner of Uniontown Shopping Center at the corner of 'F' St. and 7th St., Arcata 18 Comment
  RSA90920  Erigeron foliosus var. confinis F. W. Peirson 1926-7-13 7049 Humboldt River bottom, near Blue Lake, Mad River Comment
  POM187846  Erigeron foliosus var. mendocinus Marcus E. Jones 1931-7-16 29149 Humboldt Junction, East of Arcata. Comment
  UC479508  Erigeron foliosus var. mendocinus Marcus E. Jones, A. M. 1931-7-16 29149 Humboldt junction e Arcata Comment
  RSA254794  Erigeron glaucus Thomas W. Nelson 1971-11-11 596 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  CAS-BOT-BC308846  Erigeron glaucus A. A. Heller 1937-6-12 15915 Humboldt Trinidad on the coast near the Whaling Station, foot of the grade leading up to the lighthouse on Trinidad Head Comment
  CAS-BOT-BC295172  Erigeron inornatus Joseph P. Tracy 1933-8-6 12935 Humboldt French Camp Ridge 1066 Comment
  JEPS21931  Erigeron inornatus var. inornatus Joseph P. Tracy 1933-8-6 12935 Humboldt French Camp Ridge 1066 Comment
  UC87680  Erigeron maniopotamicus J. W. Blankinship 1893-7-1 Humboldt Mad River Comment
Read comments
Sep 3 2011
  CAS-BOT-BC214579  Erigeron philadelphicus W. R. Dudley 1899-6-19 s.n. Humboldt Scotia Comment
  CAS-BOT-BC214592  Erigeron philadelphicus Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet ranch Comment
  UC127577  Erigeron philadelphicus var. philadelphicus Harley P. Chandler 1901-6-1 1402 A Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UC581734  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1936-6-17 1463 Humboldt on nw slope Buck Mountain; Northern Coast Ranges, , Burr Valley 1066 Comment
  RSA134150  Eriodictyon californicum Percy C. Everett, E. K. Balls 1959-10-24 23953 Humboldt 2.8 miles southwest from Siskiyou-Humboldt Co. line, Somesbar to Orleans. 198 Comment
  RSA0065545  Eriogonum baileyi Marion P. Harthill 1971-9-8 571 Humboldt Walker River, Toiyabe National Forest, Lower Campgrounds. Comment
  HSC70699  Eriogonum compositum Gail Newton 1980-7-15 1553 Humboldt Near Sims Mtn. 1311 Comment
  HSC97578  Eriogonum compositum var. compositum Cara Witte 2007-5-29 140 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  CAS-BOT-BC259150  Eriogonum latifolium Marcus E. Jones 1931-7-12 28806 Humboldt Alton Comment
  SBBG53807  Eriogonum latifolium C. M. Hoak 1931-7-14 Humboldt above Eureka Comment
  CAS-BOT-BC259531  Eriogonum luteolum var. luteolum Alice Eastwood; John Thomas Howell 1937-6-22 4746 Humboldt Near Blocksburg Comment
  CAS-BOT-BC259535  Eriogonum luteolum var. luteolum Doris K. Kildale 1925-7-5 1019 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  HSC98381  Eriogonum luteolum var. luteolum R. Sutherland 1976-8-24 6 .24876 Humboldt 543 Comment
  HSC55268  Eriogonum nudum Overton, Butler 1979-8-2 12638 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC198588  Eriogonum nudum var. nudum Joseph P. Tracy 1916-6-20 4729 Humboldt Dobbyn Creek 182 Comment
  RSA53802  Eriogonum nudum var. nudum H. M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek. Klamath River Canyon. Comment
  JEPS85496  Eriogonum nudum var. oblongifolium L. R. Heckard with T. I. Chuang 1968-7-4 1981 Humboldt 9 mi s on Yager road Kneeland Comment
  POM160765  Eriogonum roseum Joseph P. Tracy 1923-9-10 6547 Humboldt Local on sand bar Trinity River Valley, near the South Fork. Comment
Read comments
Aug 15 2009
  UC14096  Eriogonum roseum Chesnut and Drew 1888-7-25 Humboldt Hy-Am-Pum Comment
  JEPS56193  Eriogonum umbellatum var. argus W. L. Jepson 1902-7-25 2119 Humboldt Trinity Summit Comment
  HSC32550  Eriogonum umbellatum var. nelsoniorum Thomas W. Nelson 1973-7-10 1032 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  UC1980559  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8346 Humboldt Along U. S. Forest Service Road 1 northwest of Grouse Mountain at milepost 14.3, about 10.3 air miles southwest of Salyer Comment
  HSC76554  Eriogonum umbellatum var. polyanthum Teresa Prendusi 1981-7-24 517 Humboldt Near Whiteys Peak 1634 Comment
  HSC98645  Eriophorum crinigerum Cara Witte 2007-5-24 115 Humboldt Horse Mountain Botanical Area. Along Forest Service Rd. 6N38. Near Horse Mountain Mine. 1284 Comment
  HSC73935  Eriophyllum lanatum Gail Newton 1980-6-28 680 Humboldt Near Mad River Butte. 1536 Comment
  JEPS34646  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1921-8-12 5934 Humboldt Big Lagoon Comment
  RSA12442  Eriophyllum lanatum var. achilleoides C. B. Wolf 1934-7-1 5851 Humboldt Along Eel River and Redwood Highway, 1.2 mi. S of F. K. Lane Grove. 61 Comment
  CAS-BOT-BC301179  Eriophyllum lanatum var. arachnoideum A. A. Heller 1923-7-9 13784 Humboldt Along the grade south of Eureka Comment
  CAS-BOT-BC301687  Eriophyllum lanatum var. lanceolatum Harley P. Chandler 1901-6-1 1403 Humboldt North Coast Ranges. Klamath River 243 Comment
  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
  HSC19420  Erysimum capitatum var. capitatum J. O. Sawyer 1968-9-11 731 Humboldt 1768 Comment
  JEPS53584  Erysimum menziesii Joseph P. Tracy 1904-4-24 2031 Humboldt sand dunes of ocean beach Northern Coast Region, Humboldt Bay Comment
  HSC57884  Erysimum perenne Walter Overton, Marvin Butler 1979-7-31 11428 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC58172  Erysimum perenne G. L. Clifton, Terry Griswold 1979-8-2 12248 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  CAS-BOT-BC153743  Erythranthe alsinoides Doris K. Kildale 1926-3-21 1576 Humboldt Kneeland Prairie - Summit 853 Comment
  SEINET13693817 Image available Erythranthe dentata Noel H. Holmgren, Liew Fah Seong 1969-1 3613 Humboldt Prairie Creek Redwoods, in forest above coast near Del Norte County line Comment
  CAS-BOT-BC383051  Erythranthe guttata David B. Lowry 2005-5-16 PCK Humboldt Along Kneeland road, east of Slater Road 709 Comment
  UCD139632  Erythronium californicum Roman Gankin; W. R. Hildreth 1966-3-15 699 Humboldt State Highway 96, 8.4 miles north of Hoopa. Comment
  HSC45265  Erythronium californicum M. Alcasas 1978-6-3 114 Humboldt Titlow Hill Rd., 1.6 mi. from Hwy. 299 1479 Comment
  HSC65203  Erythronium californicum T. Jimerson, J. Pageau 1979-5-1 445 Humboldt On FS 6N34C, Orleans Ranger District, Orleans Comment
  HSC104346  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 5 Humboldt Kneeland 854 Comment
  HSC16769  Eschscholzia californica T. W. Beck 1963-4-27 38 Humboldt Humboldt Meridian, Camp Bauer, Korbel Comment
  HSC45483  Eschscholzia californica Maralyn O'Meara 1974-7-11 534 Humboldt Kneeland, Barry Ridge Comment
  POM160277  Eschscholzia californica var. crocea Joseph P. Tracy 1926-5-15 7485 Humboldt Kneeland Prairie, North Coast Ranges 762 Comment
  RSA0012595  Eucalyptus globulus Clark L. Miller 1979-5-24 9 -157 Humboldt Along Highway 101 approx. 100 yards from Murrey Road off-ramp. Comment
  UC581737  Eucephalus ledophyllus Joseph P. Tracy 1932-7-15 10601 Humboldt ridges e of Corral Prairie; Trinity Summit 1828 Comment
  POM161488  Eucephalus tomentellus Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek. 915 Comment
  UC562614  Euchiton gymnocephalus Joseph P. Tracy 1936-5-29 14829 Humboldt 2 mi ne Orick (on Bald Hills road) 152 Comment
  HSC5688  Euchiton gymnocephalus W. D. Stevens 1967-7-22 61 Humboldt Above the dirt road from old Hwy. 101 to the top of the N bank of the Mad River Comment
  SEINET11855621  Euchiton gymnocephalus J. P. Tracy 1948-9-26 18232 Humboldt at S end of Fickle Hill, 6 mi SE of Arcata 610 Comment
  UC673083  Euchiton sphaericus Joseph P. Tracy 1940-8-11 16694 Humboldt near Raccoon Creek; Trinity River Valley 152 Comment
  RSA24201  Euonymus occidentalis C. B. Wolf 1941-3-3 9996 Humboldt N. Coast Range, 3.3 miles W of Briceland on the road to Shelter Cove. 152 Comment
  UC275491  Euonymus occidentalis var. occidentalis H. E. Parks and Joseph P. Tracy 1925-6-14 7123 Humboldt along streams on Kneeland Prairie rd. Northern Coast Ranges, Kneeland Prairie rd. 457 Comment
  HSC8002  Euphorbia crenulata Lincoln Constance 1934-5-24 646 Humboldt S Fork Eel River 122 Comment
  UC1198970  Euphorbia crenulata Joseph P. Tracy 1912-8-1 3960 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC7987  Euphorbia lathyris J. P. Tracy 1941-10-26 17052 Humboldt Hydesville 91 Comment
  UC1198976  Euphorbia peplus Joseph P. Tracy 1936-4-5 16186 Humboldt Eureka 30 Comment
  HSC12567  Euphorbia peplus D. La Conte 1970-6-15 6 Humboldt Comment
  HSC31736  Euphorbia peplus Donald Spalinger 1974-4-20 16 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  UC1198981  Euphorbia spathulata Joseph P. Tracy 1927-5-30 8096 Humboldt Garberville; Northern Coast Ranges 121 Comment
  UC1222977  Eurybia radulina Joseph P. Tracy 1950-8-20 19319 Humboldt 2 mi sw of Orleans Comment
  SEINET5781777 Image available Euthamia occidentalis S. K. Harris, C. Wilder 1938-9-7 Humboldt Bars of the Van Dusen River, above Blue Slide Comment
  CAS-BOT-BC278180  Festuca W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  HSC9820  Festuca arundinacea D. E. Anderson 1961-9-13 1821 Humboldt Comment
  UC34070  Festuca californica J. P. Tracy 1901-6-23 1175 Humboldt immediate vicinity Eureka 0 Comment
  HSC98939  Festuca californica var. californica Cara Witte 2008-7-14 901 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  CAS-BOT-BC278810  Festuca occidentalis W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  HSC31117  Festuca occidentalis J. O. Sawyer 1970-6-14 2264 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  HSC71594  Festuca occidentalis M. A. Baker 1980-6-26 2404 Humboldt Near Sims Creek 610 Comment
  HSC90039  Festuca occidentalis Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-28 66 Humboldt Hwy. 299, 4 mi. W of Burnt Ranch 259 Comment
  UC38489  Festuca occidentalis Harley P. Chandler Jun 1901 1474 Humboldt Klamath River North Coast Ranges Comment
  UCD66125  Festuca occidentalis P. B. Kennedy 1923-8-23 Humboldt Near Orleans, near top of grade - Red Bluff to Arcata. Comment
  UCD66138  Festuca occidentalis A. H. Murphy 1951-6-25 70 Humboldt Snow Camp meadow, ca. 8 miles e.n.e. of Kneeland. Comment
  UC1145209  Festuca roemeri Joseph P. Tracy 1950-6-15 18803 Humboldt 7 mi n Harris; Mail Ridge 1036 Comment
  UC525638  Festuca roemeri Joseph P. Tracy 1933-7-25 12890 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC103065  Festuca rubra J. P. Smith 2014-6-4 13867 Humboldt Big Lagoon County Park 5 Comment
  POM126115  Festuca rubra Joseph P. Tracy 1900-7-4 894 Humboldt Ocean Beach at Humboldt Bay. Comment
  RSA10075  Festuca rubra Joseph P. Tracy 1927-7-4 8238 Humboldt Lone-Star Creek (in the Dagna district). 610 Comment
  RSA126631  Festuca rubra H. S. Yates 1936-6-17 5691 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  SEINET200340 Image available Festuca subulata Joseph P. Tracy 1937-7-25 15541 Humboldt Head of Little Hors-Linto Creek [Horse Linto Creek] 1372 Comment
  UCD66439  Festuca subulata P. B. Kennedy 1923-8-3 Humboldt South of Scotia by road through redwoods off highway. Comment
  SEINET200688 Image available Festuca subuliflora J. P. Tracy 1900-5-22 801 Humboldt Immediate vicinity of Eureka 0 Comment
  SBBG26931  Frangula californica subsp. californica D. K. Kildale 1927-7-3 Humboldt Willow Crk flat on Trinity River 152 Comment
  HSC41295  Frangula californica subsp. occidentalis Brad Klipfel 1974-7-27 495 Humboldt Horse Mtn. Comment
  CAS-BOT-BC59968  Frangula purshiana Harley P. Chandler 1901-5-1 1173 Humboldt Humboldt Bay. 30 Comment
  CAS-BOT-BC217694  Fraxinus latifolia Joseph P. Tracy 1928-4-22 8414 Humboldt Willow Creek, Trinity River Valley 152 Comment
  HSC16198  Fraxinus latifolia C. B. Wolf 1927-8-30 1246 Humboldt 3 mi. S of Thorn along old coast road Comment
  UC1197625  Fritillaria affinis Joseph P. Tracy 1933-6-13 12575 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  HSC15539  Fritillaria affinis D. E. Anderson 1962-5-1 2189 Humboldt Junction of Redwood Creek Rd. and rd. to Hoopa Comment
  HSC38787  Fritillaria purdyi J. P. Smith 1976-5-30 8826 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  UC667120  Fritillaria purdyi Joseph P. Tracy 1927-5-22 8076 Humboldt Kneeland Prairie 822 Comment
  CHSC19947  Galium aparine M. S. Taylor 1975-3-25 427 Humboldt Between 11th and 12th Sts, at end of Citrus Ave, Chico. Comment
  UC594156  Galium aparine S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3427 Humboldt nw slopes Buck Mountain 822 Comment
  UC602510  Galium bolanderi Joseph P. Tracy 1935-7-29 14339 Humboldt exposed places near Ranger Station; Trinity Summit 1828 Comment
  HSC41597  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1977-9-3 3719 Humboldt Along ridge between Bear Creek and Blanket Creek 1494 Comment
  JEPS52693  Galium bolanderi Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3853 Humboldt 1/2 mi e Dinsmores (on Hwy 36, w-facing slope) 731 Comment
  JEPS52859  Galium californicum subsp. californicum Lauramay T. Dempster 1963-7-9 3849 Humboldt 4.4 mi s Bridgeville (on Hwy 36 to Dinsmore) 457 Comment
  JEPS6498  Galium parisiense W. L. Jepson 1936-8-12 17882 Humboldt Miranda South Fork Eel River Comment
  HSC70963  Galium porrigens Gail Newton 1980-7-15 1585 Humboldt Near Sims Mtn. 1311 Comment
  UC602511  Galium porrigens Joseph P. Tracy 1926-4-11 7406 B Humboldt Bridgeville 198 Comment
  JEPS52751  Galium porrigens var. porrigens L. T. Dempster and G. L. Stebbins 1963-7-8 3843 Humboldt at highway crossing n Willow Creek town; Willow Creek 140 Comment
  HSC76233  Galium triflorum Teresa Prendusi 1981-7-9 166 Humboldt Near Cedar Camp. 1268 Comment
  HSC41594  Galium triflorum Thomas W. Nelson, Jane P. Nelson 1977-7-1 3554 Humboldt 1494 Comment
  UC169075  Galium triflorum Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5470 Humboldt near Elk Prairie (Fruitland); North Coast Ranges Comment
  JEPS20468  Gamochaeta coarctata Joseph P. Tracy 1936-8-1 15057 Humboldt 6 mi se Blue Lake; Canyon Creek 365 Comment
  UC562617  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  HSC41276  Garrya buxifolia Brad Klipfel 1974-6-25 430 Humboldt Horse Mtn. Comment
  CAS-BOT-BC188533  Garrya elliptica Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC188545  Garrya elliptica Joseph P. Tracy 1939-3-19 16203 Humboldt Bluffy hillside; Root Grade near Blue Slide on Van Duzen River 91 Comment
  HSC12588  Garrya elliptica Gary J. Stebbins 1970-2-2 5 Humboldt Along Clam Beach lagoon rd. off McKinleyville exit with Hwy. 101 Comment
  HSC39952  Garrya elliptica Linda M. Barker 1976-1-24 1310 Humboldt 3 mi. W of Arcata Comment
  HSC43844  Garrya elliptica Maralyn O'Meara 1974-5-18 499 Humboldt Fisher Rd. near Carlotta Comment
  HSC8389  Garrya elliptica Francis Winter 1960-2-28 Humboldt Samoa Peninsula 6 mi. W of Arcata, Ca Comment
  UC162337  Garrya elliptica J. P. Tracy 1911-10-22 3549 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC182144  Garrya fremontii S. Matthews; M. Goering; R. James 1985-5-10 058 Humboldt unspecified 1143 Comment
  HSC35698  Garrya fremontii Thomas W. Nelson, B. Reinhardt 1975-7-30 2105 Humboldt along Rd. out to Whiting Ridge and at Last Chance Ridge Comment
  UC1225768  Garrya fremontii Joseph P. Tracy 1939-1-14 1618 a Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC502980  Garrya fremontii Joseph P. Tracy 1932-3-6 9773 Humboldt Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UCD39984  Garrya fremontii Rodney Gale Myatt 1971-9-21 1189 Humboldt Near Orleans, northeast of Hoopa Reservation, and along Klamath River. 426 Comment
  UCSB72519  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
  HSC49710  Gastridium phleoides J. O. Sawyer 1977-7-1 2991 Humboldt Aikens campground. Comment
  UC50488  Gastridium ventricosum J. Burtt Davy 1899-6-26 5868 Humboldt Hoopa Valley; North Coast Ranges, Hoopa Valley Comment
  CAS-BOT-BC58909  Gaultheria shallon Mrs. Rachel Ellery 1916-4-1 s.n. Humboldt Beatrice Comment
  CAS-BOT-BC58922  Gaultheria shallon L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  HSC37335  Gaultheria shallon Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 480 Humboldt Along Lost Man Creek. 38 Comment
  HSC89436  Gaultheria shallon P. A. Daly 1984-5-13 25 Humboldt Along trail/Rd. at Trinidad Head. 61 Comment
  UCD20676  Gaultheria shallon A. T. Leiser 1980-7-8 s.n. Humboldt Humboldt County, Redwood National Park, Burm Creek. Comment
  POM223145  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1930-7-16 9051 Humboldt North Coast Ranges: South Fork Mountain, open glades along summit near Blake lookout 1738 Comment
  SEINET4853844  Gentiana plurisetosa D. H. Esplin 1969-1 20 Humboldt Six Rivers N. F.: 1 mi N of North Trinity Mountain. 1829 Comment
  JEPS47021  Gentiana sceptrum Joseph P. Tracy 1927-8-22 8338 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1197394  Geranium molle Joseph P. Tracy 1910-5-29 3142 Humboldt Eureka Northern Coast Region 0 Comment
  HSC8656  Geranium molle Richard Spjut 1968-11-2 258 Humboldt On the SW slope of Chaparral Mtn. 701 Comment
  HSC44760  Geranium oreganum Maralyn O'Meara 1972-6-8 80 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC89508  Geranium retrorsum M. Roantree 1985-6-11 93 Humboldt E side of Trinidad Head Comment
  UC14245  Geum macrophyllum Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  SEINET200730  Gilia capillaris Joseph P. Tracy 1908-7-30 2920 Humboldt Northwest slope of Buck Mtn. 1219 Comment
  CAS-BOT-BC226149  Gilia capitata subsp. pacifica Doris K. Kildale 1927-7-1 3626 Humboldt Alton Hill 30 Comment
  HSC59484  Gilia millefoliata M. A. Ericksen 1979-4-29 241 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  CAS-BOT-BC303706  Glebionis segetum Paul F. Covel 1939-8-7 1651 Humboldt Beach at Little River Comment
  UC642312  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1933-8-25 12994 Humboldt s. of mouth of Eel R. (Centerville Beach); Centerville Beach 6 Comment
  HSC10066  Glyceria elata T. O. Preston 1963-5-12 50 Humboldt Essex pond Comment
  UC1108977  Glyceria elata Francia Chisaki and Helen K. Sharsmith 1959-8-22 4756 Humboldt Happy Camp Inner North Coast Ranges (just over Trinity County line) 914 Comment
  UC526908  Glyceria elata Joseph P. Tracy 1926-6-6 7558 Humboldt w of Hoopa (near summit on road to Bair's, Hoopa Mountain); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UCD85114  Glyceria elata Harley P. Chandler 1901-6-1 1526 Humboldt North Coast Ranges. Klamath River. 426 Comment
  UCD66779  Glyceria occidentalis August L. Hormay 1932-5-11 Humboldt Eureka, Arcata Swamp. Comment
  UC1199056  Glycyrrhiza lepidota Joseph P. Tracy 1935-5-30 13913 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC100452  Gnaphalium Carl C. Marshall Sep 1886 346 Humboldt North Fork. Comment
  RSA168832  Gnaphalium chilense Joseph P. Tracy 1950-7-15 19044 Humboldt Trinity River, E side, 1 mile N of mouth of Willow Creek. Comment
  SEINET11849375  Gnaphalium japonicum J. P. Tracy 1949-1 18591 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  CAS-BOT-BC302539  Gnaphalium palustre H. E. Parks; S. T. Parks 1937-7-1 24026 Humboldt Spruce Cove, Trinidad Comment
  CAS-BOT-BC302619  Gnaphalium palustre Joseph P. Tracy 1933-8-30 13043 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  HSC31359  Gnaphalium palustre R. F. Thorne, P. Everett 1965-8-7 35227 Humboldt Samoa Peninsula 3 Comment
  HSC35784  Gnaphalium palustre Thomas W. Nelson, B. Reinhardt 1975-7-30 2100 Humboldt Road out Whiting Ridge Comment
  UC1199345  Gnaphalium palustre Joseph P. Tracy 1930-7-17 9005 Humboldt meadow McKay Camp; South Fork Mountain, McKay Camp 1676 Comment
  SD88350  Gnaphalium purpureum Darley F. Howe 1972-6-30 Humboldt Trinidad Comment
  CDA6062  Gnaphalium stramineum T. C. Fuller 1961-9-28 7059 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC29719  Goodyera oblongifolia J. D. Ackerman 1973-8-18 120 Humboldt 2 mi. N of Manila Comment
  HSC99692  Goodyera oblongifolia T. Jimerson, J. Pageau 1979-6-12 535 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  CAS-BOT-BC304737  Grindelia hirsutula Lester Rowntree 1937-8-15 s.n. Humboldt Big Lagoon Comment
  CAS-BOT-BC304757  Grindelia hirsutula Doris K. Kildale 1927-6-25 3554 Humboldt Shelter Cove Comment
  JEPS82251  Grindelia hirsutula Roger Raiche 1983-7-19 30540 Humboldt along Mattole Road several mi w of Honeydew (2 mi e of Lighthouse Road) Comment
  POM253560  Grindelia hirsutula C. L. Hitchcock, J. S. Martin 1939-7-14 5437 Humboldt Bluffs facing sea at Shelter cove Comment
  UC1173679  Grindelia hirsutula Joseph P. Tracy 1939-8-6 16397 Humboldt Big Lagoon 3 Comment
  POM160899  Grindelia hirsutula var. davyi Joseph P. Tracy 1918-7-7 5038 Humboldt Near Garberville. 122 Comment
  RSA47164  Hastingsia serpentinicola Doris K. Kildale 1927-7-17 3771 Humboldt Bug Creek, Chaparral Mountain Comment
  SD128471  Helenium bigelovii L. E. Urbatsch, Patricia B. Cox and Alan W. Lievens 1988-8-17 6103 Humboldt Road to Denny from California 299; 1.7 miles to left fork; 6.7 miles to right fork, 7NO4; collection site 6.4 miles. Comment
  UC582669  Helenium bigelovii Joseph P. Tracy 1930-7-16 8936 Humboldt wet meadow at McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC306863  Helenium bolanderi Doris K. Kildale 1927-6-26 3592 Humboldt Patrick's Point Comment
  HSC96487  Helenium bolanderi Gordon Leppig 1997-8-3 632 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  SD42503  Helenium bolanderi Carl B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park. Comment
  UC169301  Helenium puberulum Joseph P. Tracy 1912-8-4 3979 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1239638  Heliotropium curassavicum Joseph P. Tracy 1938-8-28 16135 Humboldt Stone Lagoon Beach Comment
  UCD132965  Helminthotheca echioides Collector unknown Date Unknown s.n. Humboldt exact location unknown. Comment
  RSA255766  Hemitomes congestum Gary D. Wallace, S. Carlquist 1972-6-30 1102 Humboldt Prairie Crrek Redwoods Stl. Pk. near the coast. Comment
  HSC73539  Hemizonella minima Gail Newton 1980-7-14 1475 Humboldt Near Last Chance Ridge. 1219 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
  HSC100436  Hemizonella parvula Carl C. Marshall Jun 1886 25 Humboldt South Fork Mtn. Comment
  UC1199367  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1930-6-15 8767 1/2 Humboldt Dobby Creek 152 Comment
  UC1199368  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-5-30 7020 Humboldt 228 Comment
  UC275452  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-7-18 7215 Humboldt Cape Ridge Northern Coast Ranges, Cape Mendocino 304 Comment
  SD53244  Heracleum maximum Darley F. Howe 1962-5-22 3301 A Humboldt 0.5 miles north of Orick on # 101 29 Comment
  UC162880  Hesperolinon micranthum Joseph P. Tracy 1911-7-4 3290 Humboldt near Willow Creek (hillslopes at w side of river); Northern Coast Ranges, Trinity River 243 Comment
  JEPS11797  Heterocodon rariflorum Lincoln Constance 1934-6-19 915 Humboldt near Grasshopper Peak summit; South Fork Eel River, Bull Creek Region 914 Comment
  SEINET10873420  Heterocodon rariflorum Chesnut CHESNUT 1888 Humboldt KNEELAND Comment
  CAS-BOT-BC311057  Heterotheca oregona var. oregona Doris K. Kildale 1926-5-31 2025 Humboldt Miranda, on South Fork of Eel River Comment
  HSC20194  Heuchera micrantha P. N. Slattery 1963-4-27 44 Humboldt Clam Beach Comment
  CAS-BOT-BC312399  Hieracium albiflorum L. R. Abrams 1918-6-16 7149 Humboldt Willow Creek Comment
  POM232032  Hieracium albiflorum I. L. Wiggins 1930-7-22 4691 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  UC582414  Hieracium albiflorum Joseph P. Tracy 1933-8-30 13039 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC582417  Hieracium albiflorum Joseph P. Tracy 1929-7-4 8613 1/2 Humboldt French Camp Ridge 1066 Comment
  UC165196  Hieracium nudicaule Joseph P. Tracy 1909-8-1 3066 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  SEINET270546  Hierochloe occidentalis Richard R. Halse 1996-3-26 5020 Humboldt Redwood National Park ; At junction of Bald Hills Road and Holter Ridge Bike Route 11 miles southeast of US Highway 101 708 Comment
  UC198615  Hippuris vulgaris Joseph P. Tracy 1917-5-30 4807 Humboldt near mouth of Little R.; Northern Coast Ranges 6 Comment
  HSC91886  Holcus lanatus E. Mackey 1986-10-7 Humboldt Partick's Point State Park. Comment
  UCD84909  Holcus lanatus J. I. Mallory 1955-7-22 117 Humboldt Peavine Ridge, 1 mile north of Luke Prairie. 701 Comment
  SEINET10591413  Holcus lanatus Huron H. Smith 1911-1 Smith 3772 Humboldt Comment
  CAS-BOT-BC149909  Holodiscus discolor C. C. Harris; S. K. Harris 1936-6-9 329 Humboldt Behind Mrs. Wilder's, Carlotta Comment
  HSC18682  Holodiscus discolor H. E. Parks, S. T. Parks Jun 1927 257 Humboldt Hartsook 122 Comment
  HSC74742  Holodiscus discolor Gail Newton 1981-7-24 2295 Humboldt Near Chaparral Mtn. 1512 Comment
  UC1127999  Holodiscus discolor A. E. Wieslander 1931-5-22 216 Humboldt hills s of Ferndale Comment
  UCD113355  Holodiscus discolor J. Street 1950-6-24 s.n. Humboldt Honeydew. Comment
  HSC58607  Hordeum brachyantherum G. L. Clifton, Griswold 1979-7-25 10949 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC1103488  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1942-6-15 17126 Humboldt near Redcrest resort; Englewood 91 Comment
  HSC10120  Hordeum marinum subsp. gussoneanum True Hoyle 1967-7-9 27967 Humboldt By the cattle guard at the W side of the Roy Fulton Ranch, Iaqua Gun Club, Big Bend of the Mad River above Maple Creek. 610 Comment
  HSC98175  Hordeum marinum subsp. gussoneanum L. M. Malloy 1965-5-14 42 Humboldt N of Liscom's Slough 1/4 mi. on Foster Ave. Comment
  HSC103010  Hordeum murinum subsp. murinum J. P. Smith 2014-5-20 13852 Humboldt Samoa Peninsula 6 Comment
  CDA25952  Horkelia tridentata subsp. flavescens G. Levy, S. March 2005-6-24 15 Humboldt Northwestern California Comment
  CAS-BOT-BC537899  Horkelia tridentata var. flavescens D. E. Anderson 1972-6-20 s.n. Humboldt Little Van Duzen River Comment
  SEINET958139  Hosackia pinnata J. P. Tracy 1937-1 15375 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CHSC35550  Hosackia rosea D. E. Anderson 1965-5-8 3666 Humboldt Hw. 299, east of Blue Lake, between bridge over North Fork Mad River and Lord Ellis Summit. Comment
  UC1239759  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-11 10422 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  JEPS1645  Hydrophyllum occidentale Joseph P. Tracy 1935-7-16 13955 Humboldt lower foothills nw slope Buck Mountain 792 Comment
  HSC58081  Hydrophyllum tenuipes G. L. Clifton, Griswold 1979-8-1 11985 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC58119  Hypericum anagalloides G. L. Clifton, Griswold 1979-8-1 12088 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  SEINET10720071  Hypericum anagalloides Charles L. Hitchcock, James S. Martin 1939-7-14 Hitchcock 5442 Humboldt Woods 7 miles east of Shelter Grove. 244 Comment
  UC1103552  Hypericum anagalloides Mrs. Alma Bonstell 1912-8-5 Humboldt Christmas Prairie Northern Coast Ranges, Christmas Prairie 914 Comment
  POM319264  Hypericum androsaemum Patricia Wilder 1968-8-21 4393 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  CAS-BOT-BC401233  Hypericum perforatum L. R. Abrams 1916-7-11 5973 Humboldt Alders Point Comment
  CAS-BOT-BC401229  Hypericum perforatum Doris K. Kildale 1928-6-24 7061 Humboldt Redwood Creek at Berry's Comment
  HSC23147  Hypericum perforatum Thomas W. Nelson 1970-10-18 251 Humboldt Beside Hwy. 101, 100 yds. N of bridge over Mad River Comment
  UCD110388  Hypericum perforatum subsp. perforatum A. H. Murphy 1947-6-19 s.n. Humboldt Dobbins Creek bridge, on Alderpoint-Blocksburg road. Comment
  UC1223075  Hypochaeris glabra Joseph P. Tracy 1950-6-23 18866 Humboldt Dobbyn Creek 213 Comment
  RSA170208  Hypochaeris glabra Joseph P. Tracy 1948-5-31 18020 Humboldt Dobbyn Creek; William Perry place. 152 Comment
  CAS-BOT-BC311431  Hypochaeris radicata Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  CAS-BOT-BC311435  Hypochaeris radicata M. S. Jussel 1931-5-2 81 Humboldt 20 miles north of Garberville Comment
  UC166804  Hypochaeris radicata J. P. Tracy 1909-7-4 3007 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC206838  Iliamna latibracteata H. E. Parks; S. T. Parks 1935-6-1 5593 Humboldt East of Prairie Creek, north of Orick Comment
  RSA0004193  Iliamna latibracteata Doris K. Kildale 1926-7-5 2312 Humboldt Orick - 2 mi. north. Comment
  UC1173717 Image available Iliamna latibracteata Joseph P. Tracy 1939-7-23 16350 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
Read comments
Feb 27 2012
  HSC55330  Ipomopsis aggregata Griswold, Butler 1979-7-12 7170 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC909150  Ipomopsis aggregata Joseph P. Tracy 1932-7-12 10440 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC13865  Iris douglasiana J. J. Wagoner 1965-4-3 9 Humboldt 16 mi. N of Trinidad, W of Hwy. 101 in Dry Lagoon State Beach Park 24 Comment
  JEPS17223  Iris douglasiana W. L. Jepson 1934-5-7 16713 Humboldt Buckeye Prairie; Bull Creek Comment
  HSC32383  Iris douglasiana Linda M. Barker 1974-5-11 185 Humboldt Redwood National Park, W of Bald Hills Rd., NW of Gans Prairie 366 Comment
  HSC89546  Iris douglasiana M. Roantree 1985-5-24 63 Humboldt E side of Trinidad Head Comment
  RSA40408  Iris douglasiana Philip A. Munz, Lee W. Lenz 1948-8-13 12350 Humboldt 8 miles east of Blue Lake, on Highway 299 305 Comment
  UC719144  Iris macrosiphon F. G. Meyer 1938-4-6 1390 Humboldt about 10 mi n Garberville Comment
  UC275564  Iris purdyi Joseph P. Tracy 1924-7-4 6715 Humboldt Snow Camp; Northern Coast Ranges 1371 Comment
  SD112455  Iris purdyi darley F. Howe 1972-5-6 4832 Humboldt 1.5 miles north of Phillipsville. Comment
  UC667940  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp 1402 Comment
  UC667941  Isoetes howellii Joseph P. Tracy 1935-5-25 13841 Humboldt Fort Seward 106 Comment
  JEPS93182  Jaumea carnosa Margriet Wetherwax and Kevin Downing 1993-8-9 2463 Humboldt n Eureka (along n side of slough, Jacobs St. turn-off of 101N just beyond bridge over slough, between 2 Peterbilt warehouses); Eureka Slough 5 Comment
  CAS-BOT-BC101963  Juglans hindsii Henry M. Pollard 1947-8-30 s.n. Humboldt Along Klamath River nr. Wilson Creek, Orleans region Comment
  HSC90771  Juncus bufonius Gail Newton 1982-6-10 3602 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC44302  Juncus confusus Thomas W. Nelson 1976-7-9 3009 Humboldt S of Mtn. Lassic, (Signal Peak). 1707 Comment
  HSC23674  Juncus covillei Tim Baroni 1971-6-25 56 Humboldt Comment
  HSC62949  Juncus effusus subsp. pacificus M. Dean Griswold 1979-5-27 65 Humboldt W of G St., S of Arcata Comment
  JEPS63893  Juncus effusus subsp. pacificus W. L. Jepson 1932-7-29 16440 Humboldt Weatt Comment
  SEINET10756160 Image available Juncus effusus var. exiguus Unknown Rattan 5 Humboldt Comment
  UC249815  Juncus ensifolius Joseph P. Tracy 1924-7-13 6732 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC44316  Juncus ensifolius Thomas W. Nelson, Jane Nelson 1977-9-3 3733 Humboldt Logging road to Pine Mtn., E of Pine Mtn. 1463 Comment
  HSC57093  Juncus exiguus Walter Overton, Marvin Butler 1979-7-24 9815 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC1103045  Juncus falcatus subsp. falcatus Joseph P. Tracy with H. E. Parks 1924-8-3 6746 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  RSA246773  Juncus falcatus subsp. sitchensis Robert F. Thorne, Percy C. Everett 1965-8-7 35223 Humboldt Samoa Peninsula. 3 Comment
  HSC90770  Juncus lescurii Gail Newton 1982-6-10 3608 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC57961  Juncus orthophyllus G. L. Clifton, Griswold 1979-7-31 11662 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC535733  Keckiella corymbosa Eleanor Armstrong 1934-8-24 1186 Humboldt Richardson Grove 121 Comment
  HSC95250  Kniphofia uvaria Gordon Leppig, Sylvia Leppig 2000-4-9 1287 Humboldt Humboldt Marsh and Wildlife Refuge, SE corner of Klopp Lake Dike 1 Comment
  UC27904  Kopsiopsis strobilacea Harley P. Chandler June 1901 1468 A Humboldt North Coast Ranges, Klamath River. 304 Comment
  RSA170207  Lactuca serriola Joseph P. Tracy 1949-8-8 18402 Humboldt Frank Graham's orchard; Trinity River Valley, at Willow Creek. 152 Comment
  HSC69891  Lagophylla ramosissima Thomas W. Nelson, Jane P. Nelson 1977-7-30 3661 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  UC577364  Lamium amplexicaule Joseph P. Tracy 1923-6-10 6261 Humboldt Eureka; Northern Coast Ranges 0 Comment
  CDA5661  Lamium amplexicaule B. F. Kemp 1958-2-7 102 -58 Humboldt E. Boots property, Route 1, Ferndale. 0 Comment
  HSC89711  Lamium purpureum Larry Levine, Manuel Pachero, Ben Murphey 1989-2-24 1 Humboldt HSU campus, garden plot SW of Buckhouse 40 Comment
  HSC77915  Landoltia punctata Daniel V. Richards 1981-8-25 102 Humboldt 11 km E of Arcata, W End Rd. Comment
  HSC62179  Lapsana communis J. M. DiTomaso 1980-11-4 1997 Humboldt SE of junction of 11th St. and Hwy. 101., Arcata Comment
  HSC5139  Lasthenia californica D. E. Anderson 1963-5-19 2466 Humboldt Kneeland Area Comment
  CAS-BOT-BC94770  Lathyrus angulatus R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 829 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  UCD106195  Lathyrus annuus W. A. Williams 1951-6-14 s.n. Humboldt 5 miles S of Capetown. Comment
  JEPS55332  Lathyrus brownii W. L. Jepson 1932-7-30 16455 Humboldt bank of Bull Creek Bull Creek 106 Comment
  UC162794  Lathyrus glandulosus Joseph P. Tracy 1906-6-10 2474 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC95582  Lathyrus latifolius Andrea Pickart 2002-7-19 183 Humboldt Arcata Marsh at Jolly Giant Creek mile .1 10 Comment
  HSC14738  Lathyrus littoralis Norman H. Moe 1962-5-3 Humboldt Lanphere's Place Comment
  BLMAR60  Lathyrus littoralis Jennifer Anthony-Wheeler 1994-3-31 60 Humboldt King range, growing on matole beach1/4miS of campground.dense mat of like individuals 12 Comment
  RSA165870  Lathyrus littoralis P. A. Munz 1963-6-13 24525 Humboldt Coastal Strand at Sammoa. Comment
  UC495712  Lathyrus littoralis Joseph P. Tracy 1929-7-4 8641 Humboldt near Samoa; Northern Coast Ranges 6 Comment
  CAS-BOT-BC205044  Lathyrus palustris Kenneth Clark 1980-3-27 560 Humboldt Shelter Cove. South of Dead Man's Gulch 182 Comment
  HSC18847  Lathyrus sphaericus Cherry Kline 1971-5-31 45 Humboldt 1.5 mi. NW of Petrolia on side of Mattole Rd. Comment
  SDSU4206  Lathyrus sulphureus D. F. Howe 1962-5-21 3298 Humboldt 16 miles north of Garberville on #101. 61 Comment
  SBBG3371  Lathyrus torreyi H. and M. Dearing 1933-5-16 Humboldt near Weott Comment
  JEPS55297  Lathyrus torreyi Milo S. Baker 1923-7-20 57 Humboldt road to Yager from Redwood House 609 Comment
  RSA168908  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt On Murphy Ridge beyond the meadows. Comment
  UC931754  Lathyrus vestitus C. L. Hitchcock 1949-6-7 19082 Humboldt 0.5 mi s Weatt (along Highway 101) Comment
  UC169300  Lathyrus vestitus var. vestitus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3610 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC15978  Lavatera cretica D. E. Anderson 1962-10-22 2341 Humboldt Samoa Comment
  HSC59676  Leontodon saxatilis subsp. saxatilis George Kirn 1977-10-30 Humboldt 1/2 mi. from mouth of Elk River 8 Comment
  JEPS36514  Leontodon saxatilis subsp. saxatilis W. L. Jepson 1927-7-3 12365 Humboldt South Fork Eel River, Miranda Station 228 Comment
  CHSC33025  Lepidium didymum James P. Smith 1973-5-26 6876 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  UC492269  Lepidium nitidum Joseph P. Tracy 1928-3-24 8407 Humboldt 3 mi s Point of Cape Mendocino; Northern Coast Ranges, Cape Mendocino 3 Comment
  UC1173729  Lepidium virginicum Joseph P. Tracy 1939-4-29 16245 Humboldt mouth of Slate Creek Klamath River 121 Comment
  HSC17077  Leptosiphon androsaceus J. P. Tracy, H. E. Parks 1930-5-25 794 Humboldt Near Bridgeville 457 Comment
  HSC45056  Leptosiphon androsaceus R. Sutherland 1978-4-23 34 .23478 Humboldt 558 Comment
  CAS-BOT-BC226711  Leptosiphon latisectus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg Comment
  OBI11411  Leptosiphon latisectus Joseph P. Tracy 1948-6-13 18048 Humboldt Near Harris (2 miles north) 610 Comment
  CAS-BOT-BC341825  Lessingia nemaclada Carl D. Duncan 1920-9-21 422 Humboldt At Hoopa Comment
  SEINET4889187 Image available Leucanthemum vulgare H. E. Parks, S. T. Parks August 1943 24257 Humboldt Spruce Cove, Trinidad 60 Comment
  UC1488740  Lewisia cotyledon var. cotyledon Marc Baker 1980-7-24 3196 Humboldt near Orleans Moutain; Forks of Salmon Quad., 239 ft.; 41 17' 28 left 123 27' 21 bottom 1524 Comment
  HSC39615  Lewisia nevadensis Thomas W. Nelson, Jane P. Nelson 1976-6-15 2719 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  UC183667  Lewisia nevadensis Joseph P. Tracy 1913-6-17 4167 Humboldt near summit of Buck Mountain Northern Coast Ranges, Buck Mountain 1524 Comment
  UC673015  Lewisia triphylla Joseph P. Tracy 1935-7-24 14178 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  CDA32455  Leymus X vancouverensis B. F. Kemp 1958-6-13 Humboldt Along Creek Bottom, Eureka (Nielson & Son) 0 Comment
  UC249795  Leymus mollis subsp. mollis Joseph P. Tracy 1923-5-19 6212 Humboldt Trinidad Northern Coast Ranges (ocean beach) 3 Comment
  UC526800  Leymus triticoides Joseph P. Tracy 1929-6-3 8601 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1197176  Ligusticum apiifolium J. P. Tracy 1906-11-4 2554 Humboldt immediate vicinity Eureka (Rick's Prairie); Rick's Prairie 0 Comment
  JEPS81114  Ligusticum apiifolium Joseph M. DiTomaso 1980-6-27 1623 Humboldt 6 mi. from Orleans (on Gasquet-Orleans Rd.) Comment
  HSC95380  Lilaeopsis occidentalis Andrea Pickart 2002-7-9 170 Humboldt Bracut Marsh at freshwater outlet into salt marsh 10 Comment
  CAS-BOT-BC508396  Lilium columbianum Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Divide west of Willow Creek Comment
  SEINET12057695  Lilium columbianum F. H. Utech 1978-6-30 78 -260 Humboldt ca 2.5 km S of Del Norte/Humboldt County line on US 101 Comment
  UC1334273  Lilium kelloggii Albert M. Vollmer and Ira L. Wiggins 1940-7-4 6 Humboldt 15 mi. w. Weitchpec (on burned-over ridge on Orick-Weitchpec rd.) 944 Comment
  CAS-BOT-BC130732  Lilium pardalinum Doris K. Kildale 1928-7-25 5693 Humboldt Chalk Mountain 914 Comment
  UC54663  Lilium pardalinum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5717 Humboldt Supply Creek; North Coast Ranges, Hupa Valley Comment
  HSC58211  Lilium pardalinum subsp. pardalinum Walter Overton 1979-8-1 12334 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  JEPS62029  Lilium rubescens Mrs. M. H. Manning 1901-7-27 319 Humboldt Bald Hills Comment
  CAS-BOT-BC132968  Lilium rubescens Tom Craig 1941-7-2 s.n. Humboldt Near Yager Comment
  SD58470  Limnanthes douglasii W. L. Jepson, W. W. Mott 3 Jun-5 Jul 1903 2197 Humboldt From Ukiah to Southern Humboldt Co., via the Blue Rock Ridge and return via Fort Bragg. Comment
  HSC43106  Limnanthes douglasii subsp. nivea Maralyn O'Meara 1974-5-14 359 Humboldt Along Hwy. 36, 7.1 mi. E of Bridgeville Comment
  UC908625  Linanthus acicularis Joseph P. Tracy 1927-5-15 8033 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1198585  Linanthus ciliatus Joseph P. Tracy 1908-6 2823 Humboldt nw slope Black Mountain; Northern Coast Ranges 914 Comment
  RSA46839  Linaria vulgaris Doris K. Kildale 1926-6-4 2090 Humboldt Trinidad. Comment
  SEINET5740994 Image available Linnaea borealis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6105 Humboldt From California 299 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to another fork in the road. Take the right fork (away from the road leading to Waterman Ridge and Willow Creek). On this road (7NO4), travel 2.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7NO4N, the road to Groves Prairie. The collection site is a short distance up this road.; Groves Prairie Comment
  UC28473  Linnaea borealis var. longiflora J. Burtt Davy 1899-6-21 5741 Humboldt Trinity Summit; North Coast Ranges, Trinity Summit 609 Comment
  HSC15802  Linum bienne F. B. Plett 1963-4-9 15 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC12370  Linum bienne Steve Dorei 1970-10-9 99 Humboldt Humboldt State College Campus near Union St., just S of the fish hatchery. Comment
  POM301291  Listera caurina H. E. Parks, Joseph P. Tracy 1949-6-25 11667 Humboldt Trinity Summit, near Box Camp 1524 Comment
Read comments
Jul 13 2018
  UC1196367  Lithocarpus densiflorus Joseph P. Tracy 1921-10-2 5964 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC36581  Lithocarpus densiflorus var. echinoides Doris Kildale Gillespie 1931-6-7 10604 Humboldt South Fork Mt., Brush lookout 1726 Comment
  CAS-BOT-BC430958  Lithophragma bolanderi Doris K. Kildale 1928-5-6 5996 Humboldt Garberville. South Fork of Eel River Comment
  HSC82106  Lithophragma campanulatum Thomas W. Nelson, Jane P. Nelson 1980-5-25 5259 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  HSC96204  Lithophragma parviflorum Jennifer Lumbert, James Robinson 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on NF 1 1205 Comment
  UC1223119  Logfia gallica Joseph P. Tracy 1942-5-16 17338 Humboldt vicinity Garberville Comment
  UC167234  Lolium multiflorum Jos. Burtt Davy and W. C. Blasdale 1899-7-30 6201 Humboldt Russ Ranch Comment
  HSC74113  Lolium perenne M. A. Baker 1980-6-16 1941 Humboldt Near Monks Camp. 1097 Comment
  UC1103482  Lolium perenne Joseph P. Tracy 1937-6-6 15331 Humboldt Ferndale 15 Comment
  UCD66673  Lolium temulentum M. A. Jargas 1926-6-8 Humboldt Happy Valley. Comment
  HSC100392  Lomaria spicant Carl C. Marshall Apr 1885 116 Humboldt Damp woods. 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
  UC659308  Lomatium dissectum var. dissectum Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2617 Humboldt lower slopes of Buck Mt. near Eureka; Buck Mt. 792 Comment
  UC21100  Lomatium dissectum var. multifidum Harley P. Chandler June, 1901 1340 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC67194  Lomatium macrocarpum Thomas W. Nelson, James Nelson 1980-6-10 5419 Humboldt Along road to Red Mtn., 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  UC642329  Lomatium macrocarpum Joseph P. Tracy 1933-7-25 12894 Humboldt Grouse Mt. 1524 Comment
  HSC40717  Lomatium tracyi Thomas W. Nelson, Barbara Kelly 1977-6-15 3443 Humboldt Along old road to Horse Mountain ski area. 1372 Comment
  HSC32228  Lomatium triternatum var. triternatum J. O. Sawyer 1970-6-24 2227 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC1197146  Lomatium triternatum var. triternatum Joseph P. Tracy 1930-7-10 8875 Humboldt Northern Coast Ranges, Brannan Mt. 1066 Comment
  UC162919  Lomatium utriculatum Joseph P. Tracy 1911-7-7 3374 Humboldt 3 mi. n.w. junction of Willow Creek w/ Trinity R. (at meadows on mt. side, and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  OBI77140  Lomatium utriculatum Tracey Call, Viola Call 1964-6-20 2272 Humboldt Above Van Duzen river 7 mi east of Bridgeville Comment
  UC1197140  Lomatium utriculatum Joseph P. Tracy 1924-3-16 6626 Humboldt Northern Coast Ranges, Garberville 121 Comment
  UC1239545  Lonicera ciliosa Joseph P. Tracy 1936-8-7 15115 1/2 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC240477  Lonicera hispidula Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  HSC3942  Lonicera hispidula var. vacillans W. D. Stevens 1967-7-16 44 Humboldt Along dirt rd. from Hwy. 101 to top of N bank of Mad River. Comment
  RSA171943  Lonicera hispidula var. vacillans R. F. Thorne 1957-9-2 19002 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  RSA455188  Lonicera hispidula var. vacillans Thekla Mohr 1918-07 3351 Humboldt Eel River. Comment
  CAS-BOT-BC241491  Lonicera involucrata var. ledebourii C. Hart Merriam 1922-7-4 s.n. Humboldt Fortuna Comment
  CAS-BOT-BC241495  Lonicera involucrata var. ledebourii D. E. Breedlove 1962-6-7 3047 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC23144  Lonicera involucrata var. ledebourii Thomas W. Nelson 1970-10-17 238 Humboldt Big Lagoon Comment
  HSC40297  Lonicera involucrata var. ledebourii Linda M. Barker 1976-4-30 1400 Humboldt 3 mi. W of Arcata Comment
  RSA1254  Lonicera involucrata var. ledebourii B. D. Stark 1929-7-24 590 Humboldt 8 miles S of Eureka. 30 Comment
  HSC98250  Lotus aboriginus D. E. Anderson 1963-9-29 2850 Humboldt Fish Lake. Comment
  UC162797  Lotus aboriginus Joseph P. Tracy 1909-8-1 3073 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC162846  Lotus aboriginus J. P. Tracy 1905-9-3 2390 Humboldt immedite vicinity Eureka 0 Comment
  UC726016  Lotus aboriginus A. A. Heller 1937-6-8 15897 Humboldt 3 mi n Trinidad (at Bishop Pine Lodge) Comment
  HSC98251  Lotus aboriginus Yarick 1960-8-15 Humboldt 10 mi. W of Rd. Comment
  SEINET3523624 Image available Lotus americanus Joseph P. Tracy 1914-7-12 4583 Humboldt Eureka 0 Comment
  HSC48615  Lotus corniculatus Mark Flippo 1978-5-23 68 Humboldt Mckinleyville, Bella Vista Rd. Comment
  HSC97945  Lotus crassifolius var. crassifolius Cara Witte 2007-6-26 357 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  UC1223401  Lotus formosissimus Joseph P. Tracy 1950-6-8 18746 Humboldt 1 mi e Cape Mendocino (Capetown on Bear River, top of Cape Ridge); Cape Ridge, Capetown, Bear River 152 Comment
  SEINET6932536  Lotus micranthus Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt East end of Bald Hills, southeast of Orick. Comment
  UC1197299  Lotus micranthus Joseph P. Tracy 1919-5-31 5146 Humboldt near Willow Creek (hillslopes at w side of Trinity River in valley of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC169043  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1912-7-31 3902 Humboldt sw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  JEPS55780  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6266 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  UC1223411  Lotus yollabolliensis Joseph P. Tracy 1941-8-28 17048 Humboldt near Blake Lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  CAS-BOT-BC342559  Luina hypoleuca Frank W. Peirson 1926-7-12 7026 Humboldt Klamath River near Weitchpec Comment
  CAS-BOT-BC201189  Lupinus Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC201193  Lupinus L. R. Abrams 1922-6-25 8235 Humboldt 2 mi south of Fortuna Comment
  UC503018  Lupinus Joseph P. Tracy 1927-6-18 8189 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  UC1223280  Lupinus adsurgens Joseph P. Tracy 1950-6-18 18849 Humboldt Wilder Ridge Comment
  UC503004  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-6-14 10161 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1223271  Lupinus albifrons Joseph P. Tracy 1939-5-14 16289 Humboldt opposite Buck Mountain (near Dinsmore's); Van Duzen River, near Dinsmore's 762 Comment
  CAS-BOT-BC196399  Lupinus arboreus R. J. Mastrogiuseppe; J. D. Mastrogiuseppe 1974-9-3 178 Humboldt On sand dunes of Clam Beach Comment
  HSC14775  Lupinus arboreus J. W. Johnson 1961-9-3 1078 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  HSC40963  Lupinus arboreus Linda M. Barker 1976-5-13 1472 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  UCSB23856  Lupinus arboreus Haller, John 1967-6-17 Humboldt At Clam Beach County Park; U.S. Highway 101, about 10 miles north of Arcata Comment
  UC146976  Lupinus arboreus Harley P. Chandler May, 1901 1238 Humboldt near Vance (on Mad River); North Coast Ranges, on Mad River 91 Comment
  POM66214  Lupinus arboreus var. arboreus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA20810  Lupinus arboreus var. arboreus Carl B. Wolf 1937-9-9 9308 Humboldt Coast, 2 miles south of Cape Mendocino. 6 Comment
  HSC14796  Lupinus bicolor J. W. Johnson 1962-4-18 1249 Humboldt Arcata, Mad River County Park. Comment
  CAS-BOT-BC205382  Lupinus elmeri Charles Piper Smith 1947-7-14 47668 Humboldt Blake Lookout Road, South Fork Mountain, 0.3 miles north of Hyampom trail sign Comment
  HSC101035  Lupinus elmeri A. Thoele, Sydney Carothers 1995-7-14 57 Humboldt Six Rivers National Forest; .6 mi. south of intersection of Forest Route 1 & Rd. 3N06, on the edge of Route 1. 1720 Comment
  UC176599  Lupinus latifolius var. latifolius Joseph P. Tracy 1913-6-20 4240 Humboldt lower foothills on its nw slope Buck Mountain; Northern Coast Ranges, lower foothills Buck Mountain 762 Comment
  UC1281746  Lupinus lepidus var. sellulus Richard Spellenberg 1965-6-13 1110 Humboldt about 3/4 mi s Highway through Hoopa Indian Reservation (along road on e side of river); e side Trinity Riverk hw through Hoopa Indian Reservation Comment
  UC503007  Lupinus nanus Joseph P. Tracy 1932-5-10 9946 Humboldt Petrolia; Northern Coast Ranges, Mattole Valley 60 Comment
  UC1223286  Lupinus nanus Joseph P. Tracy 1950-5-6 18641 Humboldt Willow Creek Trinity River Valley 152 Comment
  SEINET200687  Lupinus propinquus J. P. Tracy 1901-6-16 1141 Humboldt Bluff at Bucksport, immediate vicinity of Eureka. 152 Comment
  SEINET12165538  Lupinus propinquus F. H. Utech 1986-1 86 -386 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  HSC76441  Lupinus tracyi D. K. Imper 1981-8-12 902 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  HSC75690  Luzula parviflora Bill Copeland 1980-7-2 310 Humboldt Near Snow Camp Mtn. 1311 Comment
  HSC102059  Luzula subcongesta M. R. Mesler, Robin Bencie, K. A. Wayman 2011-7-12 1165 Humboldt Patterson Meadows 1566 Comment
  HSC96476  Lycopodiella inundata Gordon Leppig 1997-6-19 460 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  POM319613  Lycopodiella inundata Patricia Wilder 1968-8-21 4384 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  RSA245025  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  UC577388  Lycopus americanus Joseph P. Tracy 1934-8-31 6853 Humboldt Klamath R. at mouth of Bluff Creek; Klamath R. 91 Comment
  CHSC57533  Lysichiton americanus Michelle Y. Wagner 1990-4-10 16 Humboldt Hope Creek Trail; 5 miles n of Orick. Damp ravine on w side of Hwy 101. 152 Comment
  UCSB26679  Lysichiton americanus Neil Havlik 1968-8-21 63 Humboldt collected ath the S-end of the Big Lagoon N of Trinidad Big Lagoon and Trinidad 1 Comment
  HSC15935  Lythrum hyssopifolia W. C. Vinyard, D. E. Anderson 1961-10-12 Humboldt Humboldt State College Campus. Comment
  UC34191  Madia elegans Harley P. Chandler 1901-6-1 1409 Humboldt Klamath River North Coast Ranges 243 Comment
  HSC38094  Madia gracilis Thomas W. Nelson, James Nelson 1976-5-30 2615 Humboldt McKeown Ranch, N of Dinsmore. Comment
  SEINET4208596  Madia gracilis Thomas Nelson, Jane Nelson; James Nelson 1975-7-15 2021 Humboldt Beside Bald Hills Rd, ca 1 mi east of Redwood National Park.; 0 Comment
  CAS-BOT-BC343589  Madia sativa Joseph P. Tracy 1936-8-24 15178 Humboldt Fickle Hill, 6 miles Southeast of Arcata 609 Comment
  UC175196  Madia sativa Joseph P. Tracy 1913-6-13 4101 Humboldt opposite Buck Mountain (valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River, Dinsmore's 762 Comment
  UC581812  Madia sativa Joseph P. Tracy 1936-8-24 15178 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC38936  Maianthemum dilatatum Linda M. Barker 1976-5-13 1484 Humboldt 3 mi. W of Arcata Comment
  CDA39348  Maianthemum dilatatum Gordon Leppig 1998-5-11 760 Humboldt Northern California Peatlands; Big Lagoon County Park. Big Lagoon Bog. Comment
  HSC60294  Maianthemum dilatatum Phyllis Krieg 1979-4-28 Humboldt Azalea Park along trail, McKinleyville 30 Comment
  HSC97658  Maianthemum dilatatum Danny Pineda 2001-5-3 16 Humboldt 3 mi. E of Hwy. 299 on West End Rd. 61 Comment
  SD53198  Maianthemum dilatatum Darley F. Howe 1962-5-21 Humboldt 35.5 miles north of Garberville, on #101. 60 Comment
  SBBG58731  Maianthemum racemosum R. Hartwell 1938-8-4 109 Humboldt opposite the Bull Crk Flat store Comment
  HSC15649  Maianthemum racemosum subsp. amplexicaule J. F. Knezevich 1968-5-21 447 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC38998  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson, Jane P. Nelson 1976-5-31 2658 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  RSA0009527  Maianthemum racemosum subsp. amplexicaule Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  RSA554593  Maianthemum racemosum subsp. amplexicaule Walter Wisura 1993-5-9 4911 Humboldt Northwest: Hwy 299, 5.7 mi. W of Willow Creek at E-fork camp ground. Comment
  SD56734  Maianthemum racemosum subsp. amplexicaule Darley F. Howe 1963-5-26 Humboldt 3.7 miles east of Orick on Bald Hill Road. 487 Comment
  HSC103295  Maianthemum stellatum Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3010 Humboldt Six Rivers National Forest; ~0.3 mi. south-southeast of Cold Spring Camp; ~ 3.3 aerial mi. south-southeast of Horse Mtn. Radio Tower. 1401 Comment
  RSA0009485  Maianthemum stellatum Marcus E. Jones 1924-4-28 s.n. Humboldt Dyerville. Comment
  HSC40015  Malacothrix floccifera Thomas W. Nelson, Jane P. Nelson 1976-7-1 2916 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  POM187937  Malacothrix floccifera Marcus E. Jones 1931-7-16 29095 Humboldt Junction, East of Arcata. Comment
  UC127825  Malacothrix floccifera Harley P. Chandler June, 1901 1360 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC204742  Malacothrix floccifera Joseph P. Tracy 1918-7-6 5049 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  JEPS36629  Malacothrix floccifera Lincoln Constance 1934-6-22 777 Humboldt Bull Creek road to mouth of Bull Creek (and up Bull Creek); South Fork Eel River, Bull Creek Region Comment
  UC33287  Malacothrix floccifera C. C. Marshall 1888-1-1 Humboldt Comment
  RSA25800  Malus fusca Carl B. Wolf 1941-7-28 11088 Humboldt between the redwood highway and Crannell. 8 Comment
Read comments
Jun 17 2020
  UC183619  Malus fusca Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3593 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC275344  Malva parviflora Joseph P. Tracy 1924-10-19 6928 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UCD116540  Malva verticillata Paul Holzberger 1981-8-24 s.n. Humboldt 1251 Williams Street, Eureka. Comment
  CHSC46890  Marah oregana R. A. Schlising 1963-6-4 2584 Humboldt South of Orick, along Hwy 101 at Big Lagoon. Comment
  HSC73820  Marah oregana Gail Newton 1980-6-7 135 Humboldt Near Brush Mtn. 1128 Comment
  UC990711  Marah oregana Roxana S. Ferris 1951-9-5 12448 Humboldt Trinidad Head Comment
  HSC89517  Marah oregana M. Roantree 1985-6-11 91 Humboldt E side of Trinidad Head Comment
  UC160957  Medicago lupulina Harley P. Chandler June, 1901 1423 Humboldt Klamath River Northern Coast Ranges 304 Comment
  HSC71442  Medicago lupulina J. P. Smith 1971-10-9 5003 Humboldt Mad River above the Fish Hatchery. Comment
  CAS-BOT-BC240328  Melica harfordii Dana York; Kim Hayler 2012-5-18 3105 Humboldt Six Rivers National Forest, near Somes Bar, 585 meters SE of the confluence of the Klamath and Salmon rivers, E and above highway 96 215 Comment
  CAS-BOT-BC281328  Melica harfordii Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain Trail 1524 Comment
  UC1132276  Melica harfordii H. L. Person 1932-5-12 Humboldt 10 mi n Garberville (Redwood Highway); Briceland Quad. Comment
  HSC97958  Melica subulata Cara Witte, Michael Scott 2007-6-22 340 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  UCD88599  Melica subulata A. A. Beetle; G. L. Stebbins Jr. with J. P. Tracy 1942-6-2 3475 Humboldt 4 miles north of Bridgeville. Comment
  UCD88684  Melica subulata H. S. Yates 1936-6-23 5878 Humboldt 4 miles NNE of Cathey's Peak. Comment
  HSC79465  Melica torreyana Kenneth Clark 1980-4-18 609 Humboldt Along access trail to Deadman's Gulch. 46 Comment
  HSC69698  Melilotus albus R. Kalal 1980-6-8 17 Humboldt Pump Station #1, along the Mad River 14 Comment
  UC1222474  Melilotus indicus Joseph P. Tracy 1943-11-28 17457 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  JEPS63458  Mentha canadensis Joseph P. Tracy 1934-7-30 13501 Humboldt along coast in front of South End of Stone Lagoon Dry Lagoon; , in front of South End of Stone Lagoon 3 Comment
  UC418978  Mentha canadensis H. E. Parks 1930-9-14 728 Humboldt Big Lagoon Comment
  HSC12347  Mentha pulegium Steve Dorei 1970-10-31 135 Humboldt Scotia Bluffs, north of railroad tracks Comment
  RSA12460  Mentha pulegium Carl B. Wolf 1934-6-30 5833 Humboldt 0.5 mile from Briceland on road to Garberville. 91 Comment
  UC34932  Mentzelia laevicaulis var. laevicaulis Hy Am-Pum 1888-7-25 Humboldt Comment
  CAS-BOT-BC428712  Micranthes californica Joseph P. Tracy 1927-3-27 7851 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork. 182 Comment
  CAS-BOT-BC428985  Micranthes ferruginea Joseph P. Tracy 1935-7-24 14186 Humboldt Trinity Summit. Near Ranger Station 1828 Comment
  POM202654  Micropus californicus M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles N of Garberville Comment
  HSC98317  Micropus californicus var. californicus H. E. Parks 1930-5-25 872 Humboldt Laribee Valley 762 Comment
  UC88381  Micropus californicus var. californicus W. W. Price 1890-6-30 Humboldt Mad River Comment
  RSA215473  Microseris laciniata subsp. laciniata K. L. Chambers 1969-5-25 2928 Humboldt Highway 36, 0.9 mile west of Bridgeville Comment
  HSC20691  Mimulus aurantiacus var. aurantiacus S. J. Hawks 1965-5-18 83 Humboldt Clam Beach. Comment
  UC26714 Image available Mimulus aurantiacus var. pubescens J. Burtt Davy before June, 1894 Humboldt Comment
  HSC55989  Mimulus breweri Overton, Butler 1979-7-31 11404 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1239052  Mimulus cardinalis Freed W. Hoffman 1949-7-15 3011 Humboldt a little s Blue Ridge (bottom of Mule Slide); North Coast Ranges, Mt. Lassic area Comment
  UC535748  Mimulus dentatus Eleanor Armstrong 1934-7-4 1165 Humboldt Richardson Grove 121 Comment
  SEINET12269811  Mimulus dentatus Unknown 1936-1 13277 Humboldt near Trinidad Comment
  UC1103337  Mimulus douglasii Joseph P. Tracy 1930-5-4 8689 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC582705  Mimulus grandis Joseph P. Tracy 1933-6-6 12501 Humboldt Trinidad 3 Comment
  HSC103078  Mimulus guttatus Sydney Carothers 2014-6-12 11 Humboldt Six Rivers National Forest, Lassics Botanical Area, Red Lassic. Near upper pond and rustic camp site. 1706 Comment
  UC446440  Mimulus guttatus P. E. Goddard 1906-6 678 Humboldt Lasseck Pk. Comment
  HSC20761  Mimulus guttatus R. Spellenberg 1964-6-15 407 Humboldt 0.5 mi. S of Humboldt Hill exit, 5 mi. S of Eureka Comment
  UC1196831  Mimulus guttatus Joseph P. Tracy 1937-5-31 15324 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS27379  Mimulus inodorus H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout (s of USGS Signal Rock); South Fork Mountain Comment
  UC147923  Mimulus microphyllus Joseph P. Tracy 1908-6 2826 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  HSC40813  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2866 Humboldt Along Rd. to Goat Hill. 1646 Comment
  RSA15548  Mimulus moschatus Carl B. Wolf 1927-8-30 1257 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  CDA30215  Mimulus pilosus M. K. Beyers, I. Shepardson 2009-9-13 238 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
  HSC73738  Mimulus primuloides var. primuloides M. A. Baker 1980-7-22 3091 Humboldt Near Grogan Hole. 1676 Comment
  HSC99450  Mimulus primuloides var. primuloides K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 100 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
  UC1116233  Minuartia californica Joseph P. Tracy 1948-6-13 18055 Humboldt ridge top near Harris 914 Comment
  HSC47615  Minuartia douglasii J. P. Smith 1977-4-23 9021 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  HSC73077  Minuartia douglasii M. A. Baker 1980-5-18 1334 Humboldt Near Black Mtn. 792 Comment
  UC668121  Minuartia douglasii Joseph P. Tracy 1935-6-23 13972 Humboldt French Camp Ridge 1066 Comment
  HSC74236  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-7-11 2794 Humboldt Near Red Mtn. 1341 Comment
  UC902093  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt along trail from Hoopa to summit (near Box Camp); Trinity Summit 1524 Comment
  UC1198864  Mitella ovalis Joseph P. Tracy 1906-5-6 2439 Humboldt near Hydesville; Northern Coast Region, Wolverton Gulch 60 Comment
  UC667082  Mitella ovalis Joseph P. Tracy 1933-5-14 12183 Humboldt along Trinity Highway Willow Creek Canyon 365 Comment
  HSC38514  Moehringia macrophylla D. E. Anderson, J. P. Smith 1971-6-18 - 1086 Humboldt Horse Mtn. Comment
  HSC97645  Moehringia macrophylla C. Witte 2007-5-17 27 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  UC668120  Moehringia macrophylla Joseph P. Tracy 1935-7-25 14225 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  HSC64760  Moehringia macrophylla Bruce Gordon 1980-4-10 141 Humboldt Redwood National Park, 60 m NE of Bald Hills Rd., 0.4 mi. NE of jct. of Bald Hills Rd. and K&K Rd Comment
  HSC57942  Monardella glauca G. L. Clifton, Griswold 1979-7-31 11612 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC57989  Monardella odoratissima G. L. Clifton, Griswold 1979-7-31 11732 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC57122  Monardella odoratissima subsp. pallida Walter Overton, Marvin Butler 1979-7-25 9870 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC58069  Monardella odoratissima subsp. pallida G. L. Clifton, Griswold 1979-8-1 11953 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC99502  Monardella odoratissima subsp. pallida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 162 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
  SEINET892718  Monardella purpurea Joseph P. Tracy 1947-1 17782 Humboldt Trinity Summit; ridge top one mile west of Mud Springs, in serpentine formation 1158 Comment
  UC1225847  Monardella villosa subsp. villosa Joseph P. Tracy 1946-7-21 17619 Humboldt Blue Slide Van Duzen River 91 Comment
  HSC26743  Moneses uniflora K. Irwin 1973-6-19 Humboldt S of road to Fern Canyon Comment
  JEPS5877  Montia diffusa Joseph P. Tracy 1930-8-24 9165 Humboldt Kneeland Prairie 762 Comment
  UC659346  Montia diffusa Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2615 Humboldt 1 mi below Dinsmore's (above Van Duzen River) 762 Comment
  HSC96218  Montia linearis J. McIntire, S. Lyon 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on FS Rd. NF1 1280 Comment
  HSC55167  Montia parvifolia Gilbert Muth 1979-8-1 12160 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  RSA183637  Montia parvifolia D. E. Anderson 1965-5-22 3726 Humboldt 9.4 miles S of Bridgeville, Comment
  HSC16103  Morella californica J. W. Johnson 1961-11-27 1431 Humboldt Woods along the trail of the Hunt Farm, Samoa Comment
  HSC49508  Morella californica R. York 1979-4-13 221 Humboldt N of College Cove Comment
  UCD110311  Morella californica Joseph P. Tracy 1948-4-4 17956 Humboldt Near Samoa, on Humboldt Bay. 6 Comment
  UCD86712  Muhlenbergia filiformis R. Tofsrud 1948-9-1 s.n. Humboldt Road between Horse Mt. and Grouse Mt. 1371 Comment
  CAS-BOT-BC275346  Muhlenbergia mexicana Henry M. Pollard 1956-10-9 s.n. Humboldt Fig Tree Riffle at Woodson Mine, Klamath River, Orleans Comment
  UCD119529  Myosotis latifolia James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6855 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  SEINET5624170 Image available Myosotis sylvatica R. D. Modafferi 1965-1 s.n. Humboldt 0.5 mile south of Trinidad on old highway 101 305 Comment
  HSC3722  Myosotis sylvatica R. F. Good 1962-5-23 6 Humboldt Surrounding Arcata 60 Comment
  HSC3727  Myosotis sylvatica Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  JEPS62076  Narthecium californicum Hilda W. Grinnell 1932-7-12 11 Humboldt below McKay Camp (S. Fork Mt.); S. Fork Mt. Comment
  HSC59207  Nasturtium officinale Terry Roth 1979-4-28 19 Humboldt Glendale exit off of Hwy. 299, gravel road towards Mad River 30 Comment
  HSC17129  Navarretia divaricata H. E. Parks 1939-6-27 5257 Humboldt Grouse Mtn. Comment
  HSC99451  Navarretia divaricata subsp. divaricata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 101 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
  UC906681  Navarretia intertexta Joseph P. Tracy 1942-7-18 17288 Humboldt Garberville 152 Comment
  UC23651  Navarretia intertexta subsp. propinqua C. C. Marshall 1888-1 Humboldt Comment
  SEINET196701  Navarretia leucocephala Joseph P. Tracy 1928-6-24 8476 Humboldt East Ranch, between Middle and North Yager Creeks. 762 Comment
  UC1198528  Navarretia squarrosa Joseph P. Tracy 1927-7-24 8293 Humboldt Upper Mattole 152 Comment
  UC906680  Navarretia tagetina Joseph P. Tracy 1942-7-18 17289 Humboldt Garberville 152 Comment
  SD42585  Nemophila menziesii var. atomaria Carl B. Wolf 1937-6-19 8915 Humboldt North Coast Range, 3 mi. w. of Little Van Duzen River at summit of grade -- Dinsmores to Bridgeville. 762 Comment
  CAS-BOT-BC60564  Noccaea fendleri subsp. glauca Lincoln Constance; Reed C. Rollins 1942-5-12 2887 Humboldt Klamath-Siskiyou Region. Klamath River 7 miles northeast of Weitchpec. 121 Comment
  UC902226  Nothochelone nemorosa Joseph P. Tracy 1948-8-15 18138 Humboldt on Ridge 2 mi e of Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  HSC48063  Nuttallanthus texanus Thomas W. Nelson 1978-4-23 3885 Humboldt N of Samoa Comment
  HSC59108  Nuttallanthus texanus M. A. Baker 1978-5-6 481 Humboldt 2 km. S of Weitchpec Comment
  HSC104317  Oemleria cerasiformis Richard Spjut 2008-6-14 16347 Humboldt North Coast Ranges; Old highway along west side of Hwy. 101 between Loleta and Fortuna 25 Comment
  HSC77344  Oemleria cerasiformis L. P. Janeway 1983-4-16 231 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  UC565992  Oemleria cerasiformis P. L. Johannsen 1933-5-17 76 Humboldt Limestairs; China Flat Quad. 182 Comment
  CDA38485  Oenanthe sarmentosa Tario 1932-9-21 s.n. Humboldt Arcata. 0 Comment
  CAS-BOT-BC499672  Orobanche californica subsp. californica Edward Lee 1934-8-17 1152 Humboldt East shore of Big Lagoon, 35 mi N of Eureka 3 Comment
  UC1197454  Orobanche fasciculata Joseph P. Tracy 1908-6-7 2610 Humboldt Northern Coast Ranges. Butter Valley on Mad River. Comment
  UC1326243  Orthilia secunda Milo S. Baker 1947-8-10 11898 Humboldt 15 mile NE of Hoopa at end of Forest Road in fir Forest 1371 Comment
  SEINET8733538 Image available Orthocarpus faucibarbatus S. K. Harris 1936-1 683 Humboldt near railroad station, Eureka 3 Comment
  HSC56239  Osmorhiza berteroi Overton 1979-8-1 12330 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  HSC81604  Osmorhiza berteroi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5249 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  HSC16717  Oxalis articulata subsp. rubra William J. Ferlatte 1963-4-27 23 Humboldt Waste place near 11th and B street, in Arcata. Comment
  CHSC94937  Oxalis oregana K. Lang; J. Lang 2005-3-16 27 Humboldt Trinidad, No. California coast. 51 Comment
  UC1197421  Oxalis oregana Joseph P. Tracy 1901-6-10 1136 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC1103425  Oxalis oregana J. P. Tracy 1906-4-15 2411 Humboldt near Kobel; Bald Mt. 609 Comment
  UC598569  Oxalis oregana W. K. Fisher 1899-6-12 48 Humboldt Humboldt Bay Comment
  CHSC414  Packera bolanderi var. bolanderi M. Underhill 1952-7-12 Humboldt 121 Comment
  UC418982  Packera bolanderi var. bolanderi H. E. and S. T. Parks May 1930 747 Humboldt near Blue Slide; Middle Van Duzen River Comment
  UC1145222  Panicum acuminatum var. acuminatum Joseph P. Tracy 1937-8-7 15621 Humboldt e Korbel (hilltops on Russ Ranch); Bald Mountain, Russ Ranch 914 Comment
  UCD88695  Panicum acuminatum var. fasciculatum Joseph P. Tracy 1938-9-25 16172 Humboldt Bald mountain; at 'Lake Prairie'. 1066 Comment
  SEINET10609310  Panicum capillare var. brevifolium A. Arthur Heller 1924-7-20 Heller 13864 Humboldt Occasional in sand along the El River at Phillipsville, in the redwood belt. Comment
  RSA624797  Parapholis strigosa Gordon Leppig 1998-6-6 801 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, Butchers Slough about 50m w of Interpretive Center 1 Comment
  JEPS23565  Parentucellia viscosa Peter H. Raven with R. Snow 1958-7-21 13652 Humboldt 2.9 mi s Ferndale (on road to Cape Mendocino) Comment
  HSC74501  Parnassia palustris Gail Newton 1980-8-10 2048 Humboldt Near Blake Mtn. 1707 Comment
  UC1103769  Paspalum dilatatum Fred M. Kay 1929-10-1 Humboldt near Blocksburg 457 Comment
  RSA249521  Paspalum distichum R. F. Thorne 1965-9-19 35459 -b Humboldt Freshwater Lagoon S. of Orick 3 Comment
  UC1145169  Paspalum distichum Joseph P. Tracy 1939-10-6 16505 Humboldt w of Sunset Cemetary Eureka (Eureka) 6 Comment
  POM288009  Pastinaca sativa Lyman Benson 1928-7-12 811 Humboldt Weott Ranger Station. 61 Comment
  UC249593  Paxistima myrsinites Joseph P. Tracy 1922-4-30 6042 Humboldt ridge n. of Willow Creek between Willow Creek and Campbell Creek (Brannan Mt.); Northern Coast Ranges, Brannan Mt. 914 Comment
  UC249517  Pectocarya pusilla Joseph P. Tracy 1922-4-30 5993 Humboldt near Willow Creek; Nothern Coast Ranges, Trinity River Valley 152 Comment
  SEINET4536600 Image available Pellaea andromedifolia Joseph P. Tracy 1921-5-30 5495 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC67770  Pellaea andromedifolia Stuart K. Harris 1960-7-11 21651 Humboldt 3.8 miles west of Redwood on road to Briceland Comment
  UC1173740  Pellaea brachyptera Joseph P. Tracy 1939-8-16 16423 Humboldt Grouse Mt 1524 Comment
  BLMAR273  Penstemon anguineus Jennifer Anthony-Wheeler 1999-7-30 273 Humboldt Lacks Creek, occuring in open, logged area of coniferous forests 1219 Comment
  RSA420442  Penstemon anguineus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2907 Humboldt Along east side of Red Lassic; beside road 1S07. 1677 Comment
  RSA420447  Penstemon rattanii Hutchinson 1927-05 s.n. Humboldt [No location information provided.] Comment
  SD129743  Penstemon rattanii var. rattanii Harold E. Parks June 1951 Humboldt Kneeland, Camaron Hill Comment
  UC1542884  Penstemon rattanii var. rattanii Harold E. Parks June 1951 Humboldt Camaron Hill Humboldt Mt. locality, Kneeland district, Camaron Hill (Kneeland) Comment
  UCD137766  Pentagramma triangularis M. Wiesendanger 1928-4-7 909 Humboldt Redwood Highway, Lane's Redwood Flat. Comment
  UC1197129  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1949-8-11 18460 Humboldt Snow Camp 1402 Comment
  HSC61046  Perideridia gairdneri subsp. gairdneri T. Jimerson, J. Pageau 1979-8-10 745 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC34709  Perideridia kelloggii Thomas W. Nelson 1974-7-20 1697 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1197117  Perideridia parishii subsp. latifolia Doris Kildale Aug. 1925 Humboldt Trinity Summit 1524 Comment
  BLMAR239  Phacelia Jennifer Anthony-Wheeler 1997-6-13 239 Humboldt King range, growing in dry cobbly part of creek bed where queen mine rd crosses S.Fork of Bear creek 463 Comment
  RSA170270  Phacelia bolanderi Joseph P. Tracy 1916-5-31 4704 Humboldt Stitz Creek. Along Eel River South Fork to Scotia. 61 Comment
  SD53212  Phacelia bolanderi D. F. Howe 1962-5-21 3300 Humboldt Hwy 101, 24.5 miles N of Garberville 60 Comment
  UC582693  Phacelia bolanderi Joseph P. Tracy 1937-6-20 15341 Humboldt 10 mi up stream from mouth; Bear River 152 Comment
  CHSC32894  Phacelia californica James P. Smith 1973-5-26 6871 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC102541  Phacelia hastata subsp. hastata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1527 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC63847  Phacelia heterophylla M. A. Baker 1979-6-27 917 Humboldt Comment
  HSC98658  Phacelia heterophylla subsp. virgata Cara Witte 2007-7-3 416 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  HSC57119  Phacelia mutabilis Overton, Butler 1979-7-25 9864 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UC1222900  Phacelia mutabilis Joseph P. Tracy 1950-6-15 18778 Humboldt 5 mi n Harris; Mail Ridge Comment
  HSC79546  Phacelia nemoralis Kenneth Clark 1981-5-2 1359 Humboldt 1/4 mi. W of Dead Man's Gulch 6 Comment
  HSC58188  Phacelia procera G. L. Clifton, Griswold 1979-8-2 12278 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC552717  Phalaris angusta Joseph P. Tracy 1935-5-25 13856 Humboldt Fort Seward 106 Comment
  RSA22131  Phalaris californica J. T. Howell 1937-7-31 13718 Humboldt Between Redwood Creek and Korbel Comment
  CAS-BOT-BC76560  Philadelphus lewisii Roxana S. Ferris 1955-7-11 12975 Humboldt Summit of U.S. Highway 299 betw. Willow Creek and Blue Lake. Comment
  UC11465  Philadelphus lewisii J. Burtt Davy June 1899 5547 Humboldt along banks of river near Scotia; North Coast Ranges, Eel River Comment
  UC492217  Philadelphus lewisii Joseph P. Tracy 1929-7-27 8646 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  POM126105  Phleum alpinum Joseph P. Tracy 1906-7-1 2514 Humboldt At Eureka 0 Comment
  UC162583  Phlox adsurgens Joseph P. Tracy 1911-7-7 3418 Humboldt viz ridge n of Willow Creek (between Willow Creek and Campbell Creek, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  JEPS69950  Phlox diffusa W. L. Jepson 1902-7-16 2051 Humboldt Trinity Summit 2133 Comment
  JEPS71114  Phlox gracilis Joseph P. Tracy 1935-7-23 14146 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC908475  Phlox gracilis Joseph P. Tracy 1930-6-21 8790 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  HSC15928  Phoradendron serotinum subsp. tomentosum M. C. Hartman 1963-5-11 35 Humboldt Berry summit Comment
  JEPS26749  Phoradendron villosum W. L. Jepson 1932-7-24 16545 Humboldt ca. 6 1/2 mi. above & e. Garberville (from near rd. along summit of Mail Ridge) 914 Comment
  UC1198130  Phoradendron villosum Joseph P. Tracy 1949-12-3 18599 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  POM161067  Phyllospadix torreyi H. E. Parks 1924-8-7 s.n. Humboldt Trinidad. Comment
  UC275567  Phyllospadix torreyi H. E. Parks 1924-8-7 Humboldt Trinidad Northern Coast Ranges Comment
  CAS-BOT-BC140587  Physocarpus capitatus Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  HSC72978  Picea breweriana M. A. Baker 1980-7-23 3188 Humboldt Near Orleans Mtn. 1859 Comment
  UC535712  Picea sitchensis Eleanor Armstrong 1934-7-31 1145 a Humboldt Patricks Point 30 Comment
  UC55647  Picea sitchensis J. P. Tracy 1901-2-3 Humboldt immediate vicinity of Eureka 0 Comment
  UCSB24019  Picea sitchensis Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  HSC31984  Pinus jeffreyi Steve Selva, Roger Jensen 1974-8-19 25 Humboldt Horse Mtn. Ski Area Comment
  HSC95834  Pinus jeffreyi Will Ferrand 2002-4-27 33 Humboldt Off Titlow Hill Rd. 0.75 mi. S of intersection of Titlow Rd. and Hwy. 299 884 Comment
  HSC54513  Pinus monticola Overton, Butler 1979-7-23 9429 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC212990  Pinus monticola Mrs. F. A. Graham 1919-8-1 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC1529  Pinus muricata R. A. Magie 1964-5-3 46 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  HSC37665  Pinus ponderosa R. Sutherland 1976-8-21 Humboldt Bulk Collection # 108 726 Comment
  HSC36773  Pinus sabiniana Brent Whitely 1975-7-10 153 Humboldt 198 Comment
  UC13528  Piperia elegans Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC14940  Piperia elegans H. P. Chandler Jun 1901 Humboldt Hupa North Coast Ranges 152 Comment
  UC180192  Piperia elegans Joseph P. Tracy 1914-8-30 4596 Humboldt Humboldt Bay Northern Coast Region Comment
  UC666983  Piperia unalascensis Joseph P. Tracy 1933-7-25 12880 Humboldt Grouse Mountain 1524 Comment
  SEINET12075193  Piperia unalascensis H. P. Chandler 1901-1 1385 Humboldt North Coast Ranges, Hupa [Hoopa Valley] Indian Reservation 305 Comment
  HSC49366  Pityopus californicus T. Jimerson, J. Pageau 1979-6-15 578 Humboldt West of FS 11N21, on the boundary between Sections 27 and 28. 762 Comment
  CAS-BOT-BC227992  Plagiobothrys Doris Kildale Gillespie 1931-6-7 10647 Humboldt South Fork Mountain, Blake Lookout 1726 Comment
  HSC41226  Plagiobothrys cognatus Thomas W. Nelson, Jane P. Nelson 1977-6-14 3496 Humboldt Above Alder Springs 1585 Comment
  POM126363  Plagiobothrys reticulatus Joseph P. Tracy 1912-6-9 s.n. Humboldt Alton. 30 Comment
  UC206144  Plagiobothrys reticulatus Joseph P. Tracy 1909-5-23 2972 Humboldt Eureka 0 Comment
  UC582614  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-9 14905 Humboldt Upper Mattole Valley 121 Comment
  OBI20592  Plagiobothrys reticulatus Joseph P. Tracy 1946-5-30 17541 Humboldt Carlotta. By Old Strong's District School House. 5 mi E of town, and at "Riverside Park" 61 Comment
  UC1222214  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17142 Humboldt Miranda South Fork Eel River, Miranda 121 Comment
  UC526822  Plagiobothrys reticulatus Joseph P. Tracy 1928-6-24 8473 Humboldt head Yager Creek (East Ranch); North Coast Ranges, head Yager Creek, East Ranch 762 Comment
  UC1222204  Plagiobothrys scouleri Joseph P. Tracy 1948-5-31 17987 Humboldt halfway between Garberville and Harris (at Robertson's sheep ranch) 609 Comment
  SJSU11079  Plantago maritima H. T. Harvey 1977-7-6 608 Humboldt S Spit, Humboldt Bay Comment
  HSC100588  Plantago maritima Carl C. Marshall Jun 1886 229 Humboldt Salt marshes. Comment
  HSC83040  Plantago maritima A. L. Eicher 1986-5-10 Humboldt .3 mi. S of the junction of Samoa Blvd. and Vance Ave. 1 Comment
  HSC83041  Plantago maritima A. L. Eicher 1985-6-16 Humboldt SW side of the mouth of Mad River Slough 1 Comment
  BLMAR322  Plantago subnuda Jennifer Wheeler 2002-8-9 322 Humboldt Lost Coast Headland, Brackish creek edge of south side Guthrie creek 3 Comment
  POM312378  Plantago subnuda Malcolm A. Nobs, S. Galen Smith 1949-8-3 1188 Humboldt Southern outskirts of Eureka Comment
  HSC27463  Platanthera dilatata var. leucostachys J. D. Ackerman, A. Montalvo 1973-6-30 90 Humboldt Big Lagoon State Park, 8 mi. N of Trinidad 0 Comment
  UC666990  Platanthera leucostachys Joseph P. Tracy 1932-7-16 10609 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  RSA20791  Platanthera leucostachys Carl B. Wolf 1937-8-13 9256 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  HSC64194  Platanthera sparsiflora J. O. Sawyer, M. A. Ericksen 1979-6-23 3374 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC1196294  Platystemon californicus Joseph P. Tracy 1944-5-14 17466 Humboldt at Bucksport Bucksport (near Eureka); near bay shore at Bucksport (near Eureka) 6 Comment
  UC1239575  Plectritis congesta Joseph P. Tracy 1914-7-5 4568 Humboldt Northern Coast Ranges, High Prairie on Bald Mountain Bald Mountain; Northern Coast Ranges, , High Prairie 1066 Comment
  UC999832  Plectritis congesta S. C. Dyal 1938-6-11 719 d Humboldt 2 mi e of Dinsmore Comment
  HSC63844  Pleuricospora fimbriolata M. A. Baker 1979-6-29 953 Humboldt 900 Comment
  SEINET6652845 Image available Pleuricospora fimbriolata Joseph P. Tracy 1925-1 7184 A Humboldt Northern Coast Ranges: High Prairie on Bald Mountain 1067 Comment
  SEINET200751  Pneumonanthe setigera Joseph P. Tracy 1919-9-22 5274 Humboldt Trinity Summit 1829 Comment
  HSC10624  Poa annua E. W. Styskel 1964-4-12 65 Humboldt Corner of Center St. and Hwy. 101 in Rio Dell. Comment
  UC525625  Poa annua Joseph P. Tracy 1934-3-11 13148 Humboldt Weitchpec 121 Comment
  HSC10641  Poa bolanderi J. P. Tracy 1930-7-16 8902 Humboldt Near McKay Camp. 1677 Comment
  UC1103798  Poa bolanderi Joseph P. Tracy 1947-6-26 17742 Humboldt forest near McKay camp (South Fork Mt); South Fork Mt 1676 Comment
  HSC97639  Poa bulbosa Cara Witte 2007-5-22 77 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1398 Comment
  HSC75490  Poa compressa J. O. Sawyer 1980-7-18 3631 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  SEINET178314 Image available Poa compressa Joseph P. Tracy 1913-7-20 4378 Humboldt on Redwood Creek at the Berry crossing 300 Comment
  HSC10686  Poa confinis J. P. Tracy, H. E. Parks 1927-4-24 7947 Humboldt Eureka near bay shore. 9 Comment
  SEINET236442 Image available Poa howellii Joseph P. Tracy 1906-6-10 2486 Humboldt Kneeland Prairie. 762 Comment
  UC34126  Poa howellii Joseph Burtt Davy Jun 8 1899-Jun 1 1901 5360 Humboldt Harris Comment
  UC1103185  Poa kelloggii J. P. Tracy 1901-6-10 11321 Humboldt immediate vicinity Eureka 0 Comment
  UC187251  Poa kelloggii Joseph P. Tracy 1911-6-4 3219 Humboldt along Little River (5 mi from coast); Northern Coast Region 121 Comment
  UCD90523  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay. 30 Comment
  BLMAR301  Poa macrantha Jennifer Anthony-Wheeler 2002-6-15 301 Humboldt South Spit 6 Comment
  POM20541  Poa macrantha F. W. Peirson 1923-7-11 3645 Humboldt 18 miles N. of Eureka Comment
  HSC10751  Poa pratensis R. H. Berg 1963-4-27 55 Humboldt Prairie Creek State Park, N of Arcata. Comment
  RSA63625  Poa secunda Milo S. Baker s.n. Humboldt Near Yager Comment
  UC525659  Poa secunda subsp. secunda Joseph P. Tracy Jul 16 1930-Jul 19 1930 9053 Humboldt near Blake lookout South Fork Mountain; Northern Coast Ranges 1737 Comment
  HSC17220  Polygala californica R. Spellenberg 1964-6-16 435 Humboldt 0.25 mi. W of Hwy. 299 bridge over S Fork of Trinity River Comment
  UC1225800  Polygonum convolvulus Joseph P. Tracy 1947-8-10 17881 Humboldt Eureka 30 Comment
  JEPS50540  Polygonum davisiae W. L. Jepson 1902-7-16 2053 Humboldt Trinity Summit 2133 Comment
  HSC55014  Polygonum douglasii Overton, Butler 1979-7-31 11405 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC55188  Polygonum douglasii G. L. Clifton, Griswold 1979-8-2 12251 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA167275  Polygonum douglasii subsp. austiniae Joseph P. Tracy 1947-8-24 17923 Humboldt On Box Camp trail, 1/2 mile W of summit. 1677 Comment
  HSC55101  Polygonum minimum G. L. Clifton 1979-7-31 11832 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC203953  Polygonum polystachyum Joseph P. Tracy 1918-9-1 5096 Humboldt Newells Camp Northern Coast Ranges (on Kneeland Road) 457 Comment
  RSA20960  Polygonum polystachyum Carl B. Wolf 1937-9-12 9334 Humboldt SW side of Eureka bordering Humboldt Bay 3 Comment
  UC1225799  Polygonum sachalinense Joseph P. Tracy 1946-8-25 17634 Humboldt 1/2 mi s mouth of Elk River 6 Comment
  CAS-BOT-BC421004  Polygonum spergulariiforme Doris K. Kildale 1928-6-24 5296 Humboldt Entrance to Horse Mountain 853 Comment
  RSA244982  Polypodium calirhiza D. A. Haskell 1966-4-16 13 Humboldt Coastal strand sand dunes near town of Samoa Comment
  HSC1126  Polypodium glycyrrhiza R. D. Zortman 1963-5-5 35 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC26398  Polypodium scouleri T. O. Osborne 1970-9-16 33 Humboldt Trinidad Bay, Prisoner Rock Comment
  RSA689965  Polypodium scouleri Charlotte M. Hoak 1936-8-15 376 Humboldt Patricks Point Comment
  UC1472770  Polypodium scouleri Mrs. Carlotta C. Hall 1924-8-10 233 Humboldt 10 mi above Carlotta (along Van Duzen River, on rd. to Redding) Comment
  UC1132889  Polypogon australis H. L. Person 1932-5-19 Humboldt near Arcata (<Mendocino cutover area>); Eureka Quad. Comment
  UC1145081  Polypogon interruptus Joseph P. Tracy 1940-10-5 16748 Humboldt Trinidad 6 Comment
  HSC10833  Polypogon maritimus J. P. Tracy 1933-7-20 12811 Humboldt Along Mad River, near Blue Lake. 15 Comment
  CAS-BOT-BC232592  Polypogon monspeliensis Doris K. Kildale 1928-7-29 5923 Humboldt Bear River at Capetown Comment
  HSC101540  Polypogon monspeliensis J. P. Smith 2010-5-29 12889 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  HSC62871  Polypogon monspeliensis J. M. DiTomaso 1979-4-21 887 Humboldt Clam Beach. Comment
  HSC70656  Polystichum imbricans subsp. curtum Gail Newton 1980-7-14 1533 Humboldt Near Deadman Ridge 1097 Comment
  UCD39987  Polystichum imbricans subsp. curtum Rodney Gale Myatt 1971-9-22 1198 B Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  UC1063666  Polystichum munitum H. L. Person 1932-7-10 Humboldt Lindsay Creek; Eureka Quadrangle Comment
  UC249776  Polystichum munitum Joseph P. Tracy 1924-8-10 6803 Humboldt Van Duzen River near Strongs Station; Northern Coast Ranges Comment
  CAS-BOT-BC102908  Populus trichocarpa Doris K. Kildale; L. B. Kildale 1930-4-13 9571 Humboldt Bridgeville 289 Comment
  UCD110730  Populus trichocarpa Joseph P. Tracy 1932-5-1 9896 Humboldt Vicinity of Garberville. 121 Comment
  JEPS394  Potamogeton foliosus Joseph P. Tracy 1927-8-7 8308 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC45347  Potamogeton natans R. York 1978-4-8 125 Humboldt Between Arcata and Eureka along Hwy. 101 0 Comment
  RSA244505  Potamogeton richardsonii Larry E. DeBuhr, Gary D. Wallace 1973-9-14 1215 Humboldt On east side of Highway 101. Comment
  CAS-BOT-BC143078  Potentilla anserina subsp. pacifica Carl B. Wolf 1927-8-22 792 Humboldt Big Lagoon Comment
  HSC97733  Potentilla anserina subsp. pacifica Kevin Thomas 2004-4-7 12 Humboldt Z St., along McDaniel slough Comment
  HSC99437  Potentilla drummondii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 86 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA46858  Potentilla gracilis Doris K. Kildale 1927-7-10 3721 Humboldt Gans Prairie, Bald Hills. Comment
  HSC57357  Potentilla gracilis var. fastigiata Overton, Butler 1979-7-26 10053 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC75483  Potentilla gracilis var. fastigiata J. O. Sawyer 1980-7-18 3603 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC97528  Prosartes hookeri Frances Reuss Harmon 2001-3-31 15 Humboldt Six Rivers National Forest, Gray Falls picnic area Comment
  HSC15466  Prosartes smithii J. F. Knezevich 1968-5-21 446 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC37366  Prosartes smithii Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 499 Humboldt Along Lost Man Creek. 38 Comment
  CAS-BOT-BC517514  Prosartes smithii Kenneth Clark 1980-3-24 539 Humboldt Upper terrace of Dead Man's Gulch; Shelter Cove 76 Comment
  SEINET8477185  Prosartes smithii W. Roderick 1967-7-22 s.n. Humboldt Trinidad. 15 Comment
  HSC22530  Prunella vulgaris subsp. lanceolata Jerry Parker 1968-9-23 68 Humboldt 1/4 mi. S of Vista Point Comment
  UC1288490  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-12-28 687 Humboldt n Weott (Avenue of the Giants, Humboldt Redwoods State Park); Humboldt Redwoods State Park, Avenue of the Giants Comment
  UC1402062  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-19 627 -53 Humboldt Comment
  HSC48761  Prunus emarginata Brad Klipfel 1973-6-10 97 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57014  Prunus emarginata Overton, Butler 1979-7-24 9614 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  JEPS44945  Prunus emarginata Joseph P. Tracy 1924-5-25 6685 Humboldt on Big Lagoon Prairie, Big Lagoon Big Lagoon Prairie; Northern Coast Region, Big Lagoon, Big Lagoon Prairie 6 Comment
  POM89158  Prunus emarginata Joseph P. Tracy 1920-11-7 5410 Humboldt Around Humboldt Bay. Mad River at Lindsey Creek. 30 Comment
  CAS-BOT-BC154737  Prunus virginiana var. demissa H. E. McMinn 1922-8-5 356 Humboldt Along Van [Dusen] Duzen River Comment
  UC1222309  Prunus virginiana var. demissa Joseph P. Tracy 1950-6-25 18881 Humboldt Buck Mountain, on the Burr Valley Road Buck Mountain; , Burr Valley Road 1066 Comment
  CAS-BOT-BC356656  Pseudognaphalium californicum Joseph P. Tracy 1938-6-20 15971 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UCD134980  Pseudognaphalium ramosissimum Linda M. Barker 1976-8-2 1678 Humboldt 3 miles west of Arcata. Comment
  UC1223109  Pseudognaphalium ramosissimum Joseph P. Tracy 1950-9-10 19364 Humboldt foothills 1/2 mi s Cape Town (along coast road. Cape Ridge one mi e of Cape Mendecino); Cape Ridge 152 Comment
  SD39794  Pseudognaphalium stramineum Edith A. Purer 1932-7-27 4128 Humboldt Samoa Comment
  HSC40526  Pseudognaphalium thermale Thomas W. Nelson, James Nelson 1976-7-28 3060 Humboldt SW-facing outcrop along S.R. 36 ca. 4 mi. W of Dinsmore Comment
  HSC1589  Pseudotsuga menziesii var. menziesii Francis Winter 1960-5-7 Humboldt Samoa Peninsula 6 mi W of Arcata Comment
  UCD135129  Pseudotsuga menziesii var. menziesii P. Zinke 1950-8-3 145 Humboldt California Forest and Range Experiment Station. 3 miles south of Harris. Comment
  UC165834  Psilocarphus tenellus J. P. Tracy 1909-5-23 2971 Humboldt immediate vicinity Eureka 0 Comment
  HSC100525  Psoralea physodes Carl C. Marshall Jun 1885 11 Humboldt Pilot Creek. Comment
  BLMAR157  Pteridium aquilinum var. pubescens Donald Hazlett 1994-6-7 157 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC36274  Pteridium aquilinum var. pubescens John Rehling 1974-7-8 11 Humboldt Along Bald Hills Rd. 23.5 mi. from Hwy. 101 Comment
  HSC72628  Pteridium aquilinum var. pubescens J. P. Smith 1977-7-3 9255 Humboldt Six Rivers National Forest, along FS Rd. 11N17, above Blue Lake 762 Comment
  CAS-BOT-BC460600  Pyrola aphylla Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC17978  Pyrola aphylla Chestnut, Drew 1888-7-12 Humboldt Campbell's Comment
  UC32692  Pyrola asarifolia Joseph P. Tracy 1898-7-1 248 Humboldt Kneeland Prairie 1066 Comment
  CAS-BOT-BC466038  Pyrola picta L. B. Kildale 1930-8-3 10364 Humboldt Chaparral Mt. near Bug Creek 914 Comment
  SEINET200715  Pyrola picta Joseeph P. Tracy 1926-6-6 7556 Humboldt Near summit on road west from Hoopa to Bair's Comment
  SFV18591  Pyrola picta T. W. Nelson, J. P. Nelson 1987-6-11 8569 Humboldt Along an unnumbered branch road off USFS Road 11H21. Comment
  UC1197584  Pyrola picta Joseph P. Tracy 1949-7-19 18377 Humboldt Grouse Mountain, at Friday Camp Grouse Mountain; , Friday Camp 1219 Comment
  UC503089  Quercus chrysolepis H. E. Parks and Joseph P. Tracy 1931-5-17 9413 Humboldt opposite Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC5535  Quercus chrysolepis unknown 1867-6-17 Humboldt Elk Ridge Comment
  RSA44460  Quercus chrysolepis var. nana H. M. Pollard 1947-9-1 s.n. Humboldt Somes Mt. near summit, Orleans region. Comment
  HSC53996  Quercus garryana Griswold, Butler 1979-7-11 7083 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  CAS-BOT-BC62785  Quercus garryana var. breweri Mrs. G. Earle Kelly 1924-6-1 s.n. Humboldt Kneeland Prairie Comment
  HSC55093  Quercus garryana var. breweri G. L. Clifton, Griswold 1979-7-31 11796 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC98850  Quercus garryana var. garryana Cara Witte 2008-9-13 1037 Humboldt Forest Service Road 4N06. 1/4 mile east of intersection with National Forest 1. Cow Creek Ridge. 1283 Comment
  CAS-BOT-BC105171  Quercus kelloggii Carl D. Duncan 1920-9-27 s.n. Humboldt Top of ridge forming western rim of Hoopa Valley Comment
  HSC72682  Quercus sadleriana J. P. Smith 1977-7-3 9264 Humboldt Onion Lake Comment
  UCD47218  Quercus sadleriana D. Sanchez-Mata 1997-9-20 s.n. Humboldt Hoopa. Big Hill Lookout Road. Successional shrubland plant communitites on logged Douglas fir forests. 1230 Comment
  SBBG11822  Quercus vacciniifolia D. E. Breedlove 1961-7-4 647 Humboldt 7 mi W of Willow Crk on US Hwy 299 521 Comment
  UCD47426  Quercus vacciniifolia John M. Tucker 1948-9-3 1851 Humboldt California, Humbolt Co.; Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine, Six Rivers National Forest; 1950 Comment
  UC1196505  Quercus wislizeni Joseph P. Tracy 1925-8-23 7246 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  CAS-BOT-BC186671  Ranunculus Mrs. H. C. Cantelow 1936-5-18 1388 Humboldt 8 mi. N. of Orick nr. Corkscrew Tree Comment
  SEINET200362  Ranunculus J. P. Tracy 1921-7-31 5861 Humboldt Fortuna 30 Comment
  CAS-BOT-BC379461  Ranunculus alismifolius Volney Rattan 1883-6-1 s.n. Humboldt Landslide ponds northeast of Mad R. Comment
  JEPS55034  Ranunculus alismifolius var. alismellus W. L. Jepson July, 1902 2106 Humboldt Trinity Summit 2133 Comment
  HSC81826  Ranunculus alismifolius var. hartwegii Thomas W. Nelson 1979-7-11 5009 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC379173  Ranunculus aquatilis var. aquatilis Joseph P. Tracy 1937-5-30 15311 Humboldt Larrabee Creek; in shallow pond near Bosworth's 366 Comment
  POM270026  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1937-5-30 15311 Humboldt In Shallow pond near Bosworth's, alt 1200ft. Larrabee Creek. Comment
  UC118293  Ranunculus aquatilis var. hispidulus W. W. Price 1890-6-30 Humboldt Jarnigans Comment
  BLMAR364  Ranunculus californicus Jennifer Anthony-Wheeler 2003-5-21 364 Humboldt South Spit, Disturbed ground on west side 3 Comment
  UC162922  Ranunculus californicus Joseph P. Tracy 1911-5-27 3191 Humboldt Humboldt Bay Northern Coast Region (sand dunes of beach) Comment
  UC668066  Ranunculus flammula Joseph P. Tracy 1937-5-30 15312 Humboldt shallow pool near Bosworth's; Larrabee Creek 365 Comment
  HSC18155  Ranunculus muricatus S. J. Roberts 1965-4-25 32 Humboldt 0.25 mi. E of Lanphere's bridge across old Mad River channel Comment
  BLMAR637  Ranunculus occidentalis Jennifer Anthony-Wheeler 2011-6-21 637 Humboldt Lacks Creek, Pine Ridge Road 914 Comment
  BLMAR650  Ranunculus occidentalis Jennifer Wheeler 2012-5-9 650 Humboldt Lacks Creek, Beaver Ridge Road 865 Comment
  HSC30324  Ranunculus occidentalis var. occidentalis Dale R. Gradek 1974-4-16 11 Humboldt 7 mi. E of Blue Lake on rd. adjacent to Hwy. 299 305 Comment
  HSC39588  Ranunculus occidentalis var. occidentalis Thomas W. Nelson, James Nelson 1976-6-22 2807 Humboldt Around Senteney Rock 1524 Comment
  UC162869  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1907-6-25 2574 Humboldt Elk River Valley Northern Coast Region, region about Humboldt Bay (along ditch) 0 Comment
  HSC18220  Ranunculus orthorhynchus var. platyphyllus Jack Rockwell 1962-5-4 53 Humboldt Along Ellison Creek near rd. 457 Comment
  UC162817  Ranunculus pusillus Joseph P. Tracy 1903-5-24 1912 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  JEPS79962  Ranunculus repens Joseph P. Tracy 1918-4-7 4868 Humboldt Little River Northern Coast Ranges (mouth) 30 Comment
  POM118709  Ranunculus repens Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  HSC18179  Ranunculus repens var. repens Harvey Doerksen 1962-5-8 22 Humboldt 3 mi. W of Blue Lake, fork of Lindsay Creek and Mad River Comment
  POM311438  Ranunculus uncinatus var. parviflorus D. E. Breedlove 1962-6-8 3072 Humboldt Along Hwy 101, 8 miles N of Orick. 61 Comment
  RSA245205  Raphanus sativus Thomas W. Nelson 1971-4-12 374 Humboldt At the junction of the Hookton Rd and Copenhagen Rd. Comment
  UC912384  Rhamnus californica subsp. occidentalis Herbert L. Mason 1932-7-21 7109 Humboldt on road to Arcata to Weaverville (e slope of Southfork Mountains); Southfork Mountains Comment
  UC175733  Rhamnus purshiana Joseph P. Tracy 1912-9-1 3983 Humboldt Eureka Northern Coast Region 0 Comment
  UC592944  Rhamnus purshiana Carl B. Wolf 1931-8-30 Humboldt e side Eureka (on P Street, 1 block n of Henderson Street) 30 Comment
  CAS-BOT-BC58193  Rhododendron columbianum Doris K. Kildale 1926-2-7 1500 Humboldt Big Lagoon. Comment
  CAS-BOT-BC56608  Rhododendron macrophyllum A. A. Heller 1937-6-8 15898 Humboldt in the forest at Bishop Pine Lodge, 3 miles north of Trinidad Comment
  HSC7873  Rhododendron macrophyllum P. Markle 1962-5-22 54 Humboldt End of 18th St., Arcata Community Forest Comment
  SD51270  Rhododendron macrophyllum Darley F. Howe 1961-8-2 3120 Humboldt 7.7 miles east of Orick on Bald Mountain Road. 609 Comment
  HSC97939  Rhododendron occidentale Cara Witte 2007-6-19 290 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  SBBG5558  Rhododendron occidentale M. J. Cody 1938-7-14 Humboldt 2 mi N of Trinidad Comment
  UC1543140  Rhododendron occidentale Frank Gould, Kay Beach 1940-5-5 1041 Humboldt along coast near Trinidad Comment
  UCR32089  Rhododendron occidentale David J. Keil 1983-7-2 17313 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  UCSB21216  Rhododendron occidentale Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  CAS-BOT-BC200389  Rhododendron occidentale var. paludosum E. A. McGregor 1921-8-17 s.n. Humboldt On old grade, S.E. of Orick Comment
  HSC103188  Ribes binominatum Jade Paget-Seekins 2010-7-6 41 Humboldt On the western shore of Red Cap Lake, mostly to the right of the rocky slope. (Accessible via a few hour hike from the High Point trailhead outside of Forks of Salmon.) 1754 Comment
  HSC53831  Ribes binominatum Griswold, Butler 1979-7-10 6279 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC97159  Ribes binominatum Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 8 Humboldt 12.5 mi. S of Hwy. 299 on USFS Rd. NF1 1555 Comment
  CAS-BOT-BC92882  Ribes bracteosum Doris K. Kildale 1927-4-10 3082 Humboldt Prairie Creek between Orick and Requa. Comment
  UC70553  Ribes bracteosum J. Burtt Davy 1899-6-13 5504 Humboldt near Camp Grant; North Coast Ranges, Eel River Comment
  CAS-BOT-BC108907  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1939-4-27 16227 Humboldt Mouth of Little River. 6 Comment
  HSC70894  Ribes inerme var. klamathense J. M. DiTomaso 1981-5-15 2000 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  HSC57642  Ribes lacustre G. L. Clifton, Griswold 1979-7-25 10806 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC1198917  Ribes lacustre Joseph P. Tracy 1936-8-7 15095 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC492208  Ribes lacustre Joseph P. Tracy 1932-7-16 10623 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC1198907  Ribes laxiflorum J. P. Tracy 1901-6-10 1122 Humboldt immediate vicinity Eureka 0 Comment
  HSC20302  Ribes laxiflorum J. W. Johnson 1962-3-22 1436 Humboldt Samoa Peninsula, Miller Farm. Comment
  HSC102571  Ribes lobbii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1558 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC902100  Ribes lobbii Joseph P. Tracy 1949-6-5 18298 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC902101  Ribes lobbii Joseph P. Tracy 1942-6-23 17234 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC206034  Ribes menziesii Alice Eastwood 1907-4-21 13 Humboldt Port Trinidad Comment
  CSUSB1881  Ribes menziesii Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  UC1198929  Ribes menziesii Joseph P. Tracy 1936-3-22 14783 Humboldt 4 mi se Korbel (Angel's Ranch) 457 Comment
  UC552232  Ribes menziesii Joseph P. Tracy 1934-8-11 13565 Humboldt 2 mi e Arcata (Fickle Hill); North Coast Ranges 304 Comment
  RSA0024751  Ribes roezlii S. S. Tillett 1956-7-6 626 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  HSC45099  Ribes roezlii var. amictum R. Sutherland 1978-4-23 15 .23478 Humboldt 716 Comment
  CAS-BOT-BC198897  Ribes roezlii var. cruentum Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  HSC20320  Ribes roezlii var. cruentum D. E. Anderson 1962-5-1 2203 Humboldt 1 mi. W of Hoopa Comment
  JEPS79967  Ribes roezlii var. cruentum Joseph P. Tracy 1930-7-25 8885 Humboldt Trinity River Valley at Willow Creek Trinity River Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  UC902081  Ribes roezlii var. cruentum Joseph P. Tracy 1949-7-19 18378 Humboldt Grouse Mountain 1280 Comment
  HSC100094  Ribes roezlii var. roezlii J. P. Smith, J. O. Sawyer 2010-3-22 12711 Humboldt Along Hwy. 36, E of Dinsmore. 780 Comment
  CAS-BOT-BC212524  Ribes sanguineum Pat Daly; Rudy Galindo 1988-4-30 85 Humboldt Titlow Road and Hwy. 299 853 Comment
  HSC73148  Ribes sanguineum M. A. Baker 1980-5-18 1286 Humboldt Near Black Mtn. 1006 Comment
  CAS-BOT-BC144682  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-7-22 4693 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  HSC18478  Ribes sanguineum var. glutinosum Jana Kattenhorn 1971-2-22 189 Humboldt HSC campus, E side of one way rd. between Jolly Giant Complex and campus Comment
  RSA0018245  Ribes sanguineum var. glutinosum Thomas W. Nelson, James Nelson 1976-3-11 2266 Humboldt Beside the Eel River just north of the terminus of Singley Rd. Comment
  HSC103233  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-6-14 21 Humboldt Groves Prairie. Near a bridge just upstream from the campsite near the prairie. 1261 Comment
  HSC44194  Ribes viscosissimum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3489 Humboldt Along W side of road to Goat Hill 1616 Comment
  UC492214  Ribes viscosissimum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8908 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC667028 Image available Ribes viscosissimum Joseph P. Tracy 1933-7-16 12788 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  RSA0020901  Ribes viscosissimum Jos. Burtt Davy 1899-6-23 5848 Humboldt Trinity Summit. 2134 Comment
  CHSC59600  Romanzoffia californica R. N. Raynor 1935-4-8 Humboldt Ft. Seward. Comment
  POM265891  Romanzoffia californica Lincoln Constance, R. C. Rollins 1942-5-11 2879 Humboldt 3 miles east of East Fork of Willow Creek. Comment
  HSC26449  Romanzoffia tracyi T. O. Osborne 1970-4-8 9 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  UC775205  Romanzoffia tracyi H. E. and S. T. Parks 1933-3-1 5269 Humboldt Spruce Cove 2 mi n of Trinidad; Spruce Cove Comment
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Jun 26 2012
  RSA0003890  Romanzoffia tracyi H. E. Parks, J. P. Tracy 1933-5-9 11008 Humboldt Vicinity of Trinidad. 15 Comment
  CAS-BOT-BC74512  Rorippa curvisiliqua S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3438 Humboldt Northwest slopes of Buck Mountain. 822 Comment
  HSC58404  Rorippa curvisiliqua Terry Griswold, Marvin Butler 1979-7-11 7048 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC552285  Rorippa curvisiliqua Joseph P. Tracy 1934-7-30 13500 Humboldt along coast in front of s end Stone Lagoon (Dry Lagoon); along coast in front of s end Stone Lagoon 3 Comment
  UC183622  Rorippa curvisiliqua Joseph P. Tracy 1913-6-20 4220 Humboldt Dinsmore's Ranch opposite Buck Mountain (in valley of Van Duzen River); Northern Coast Ranges, in valley Van Duzen River, Buck Mt 762 Comment
  HSC99388  Rorippa nasturtium-aquaticum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 37 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS53810  Rorippa nasturtium-aquaticum Lincoln Constance 1934-5-29 735 Humboldt Upper Look Prairie , South Fork Eel River, Upper Look Prairie (Bull Creek Region) 365 Comment
  RSA2930  Rosa eglanteria Carl B. Wolf 1931-8-28 2363 Humboldt 1/8 mile from Rohnerville on the road to Fortuna 30 Comment
  UC527555  Rosa eglanteria C. B. Wolf 1931-8-28 2363 Humboldt 1/8 mi from kRohnerville on road to Fortuna Comment
  CAS-BOT-BC146475  Rosa gymnocarpa Doris K. Kildale 1925-8-16 1142 Humboldt Trinity Summit Trail between Horse Linto Creek & [Tish-tang-i-tang] Tish Tang a Tang 1371 Comment
  CAS-BOT-BC146486  Rosa gymnocarpa L. B. Kildale 1930-7-11 10334 Humboldt Snow Camp, head of Redwood Creek Comment
  HSC47952  Rosa gymnocarpa Brad Klipfel 1974-7-27 493 Humboldt Horse Mtn. Comment
  POM117575  Rosa gymnocarpa Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  RSA166375  Rosa gymnocarpa Robert F. Thorne 1957-9-2 18999 Humboldt Burlington State Park, just S of Weott. Comment
  UC492160  Rosa gymnocarpa Joseph P. Tracy 1932-7-13 10493 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC492161  Rosa gymnocarpa var. gymnocarpa Joseph P. Tracy Jul 16 1930-Jul 19 1930 8909 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC146831  Rosa nutkana M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  CAS-BOT-BC146835  Rosa nutkana Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC146843  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1/8 mile from Rohnerville on the road to Fortuna 30 Comment
  UCD113888  Rosa nutkana H. P. Olmo 1931-6-8 s.n. Humboldt 5 miles north of Trinidad, Redwood Highway. Comment
  SEINET11910997  Rosa nutkana F. H. Utech 1986-1 86 -392 Humboldt ca 5 mi N on Kings Peak Road, from junction with Shelter Cove Road, near Tolkan Recreation Area 480 Comment
  UC495639  Rosa nutkana var. nutkana Joseph P. Tracy 1932-11-6 10904 Humboldt Hydesville Northern Coast Ranges 152 Comment
  CAS-BOT-BC148340  Rosa pisocarpa Alice Eastwood; John Thomas Howell 1937-6-23 4763 Humboldt Dinsmore's Comment
  UC667035  Rosa pisocarpa Joseph P. Tracy 1933-8-30 13020 Humboldt Grouse Mt. 1432 Comment
  HSC19620  Rosa rubiginosa J. R. Lippincott 1967-7-16 10 Humboldt 1 mi. E of Blue Lake on Hwy. 299 Comment
  CAS-BOT-BC148221  Rosa spithamea Doris K. Kildale 1930-5-24 9549 Humboldt Trinity River at Hoopa 121 Comment
  CAS-BOT-BC148225  Rosa spithamea Alice Eastwood; John Thomas Howell 1937-6-22 4754 Humboldt Near Bridgeville Comment
  UC667049  Rubus discolor Joseph P. Tracy 1933-8-22 12979 Humboldt Eureka 6 Comment
  CAS-BOT-BC148382  Rubus leucodermis John Thomas Howell; Alice Eastwood 1937-6-22 4740 Humboldt Near Alder Point Comment
  HSC71715  Rubus leucodermis M. A. Baker 1980-6-26 2436 Humboldt Near Sims Creek 610 Comment
  HSC73244  Rubus leucodermis M. A. Baker 1980-5-18 1341 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC147248  Rubus parviflorus Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  HSC79508  Rubus parviflorus Kenneth Clark 1980-4-18 589 Humboldt Shelter Cove. On lower alluvial terrace of Dead Man's Gulch 24 Comment
  JEPS47711  Rubus parviflorus Lincoln Constance 1934-5-31 756 Humboldt Bull Creek Flat South Fork Eel River, Bull Creek Region (along Bull Creek, from w boundary of Park to Grasshpper Peak (Squaw Creek) rd., South Fork Eel River) Comment
  UCR32042  Rubus parviflorus David J. Keil 1983-7-1 17292 Humboldt Between Ferndale & Bear River Ridge Road along Mattole Road Comment
  JEPS47287  Rubus praecox H. E. Parks and Joseph P. Tracy 1932-8-13 10347 Humboldt 3 mi e Trinidad; Northern Coast Region 60 Comment
  CAS-BOT-BC156722  Rubus spectabilis Alice Eastwood 1939-3-19 s.n. Humboldt Garden Club of America Grove Comment
  CHSC59811  Rubus spectabilis Jordan Detzer 1977-4-8 6 Humboldt South end of Patrick's Point State Park, ca 0.2 mi west of Hwy 101 and 5 mi north of Trinidad. 60 Comment
  JEPS46230  Rubus spectabilis W. L. Jepson 1934-5-7 16708 Humboldt near Big Tree footbridge (Bull Creek); Bull Creek Comment
  JEPS47290  Rubus spectabilis W. L. Jepson 1934-5-7 16708 Humboldt near Big Tree footbridge (Bull Creek); Bull Creek Comment
  SEINET4093693  Rubus spectabilis O. M. Clark 1932-1 5325 Humboldt South Eureka. Comment
  UC584131  Rubus spectabilis David D. Keck and J. Clausen 1935-6-16 3394 Humboldt mouth of Little River Comment
  RSA183575  Rubus ursinus R. I. Bonn 1965-4-23 19 Humboldt 4 miles W of Arcata on Lanphere Rd. Comment
  UC1199050  Rubus ursinus Joseph P. Tracy 1939-4-16 16210 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  UCD17838  Rubus ursinus H. Olmo 8-10 May 1962 62- 35 Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. 670 Comment
  UCD17930  Rubus ursinus H. Olmo; T. S. Mallah 1953-4-3 53- 59 A Humboldt California. Humboldt County: Jordan Street in Rohnerville. In city limits, 0.5 blocks west of the north side of the Richfield filling station. Comment
  UC55519  Rumex Joseph Burtt Davy 1899-7-30 6170 Humboldt Ferndale 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
  UC1541398  Rumex acetosella W. K. Parks Jun 1932 Humboldt vicinity Trinidad Comment
  HSC100603  Rumex acetosella Carl C. Marshall May 1886 163 Humboldt Everywhere. 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
  HSC102639  Rumex californicus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1623 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC79366  Rumex crispus Kenneth Clark 1980-5-10 649 Humboldt Shelter Cove, Point Delgada, on access trail to Western Beach 6 Comment
  CAS-BOT-BC433647  Rumex obtusifolius Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  SDSU9723  Rumex obtusifolius subsp. agrestis D. F. Howe 1959-8-4 2804 Humboldt 86 miles W of Weaverville on #299. 152 Comment
  RSA168912  Rupertia physodes Joseph P. Tracy 1950-6-15 18783 Humboldt Jenks Ranch. Mail Ridge, north of Harris 7 miles. Comment
  HSC17821  Ruppia cirrhosa Jerry Parker 1968-10-26 212 Humboldt Big Lagoon County Park, Big Lagoon Comment
  UCD92348  Rytidosperma penicillatum A. H. Murphy 1947-6-1 s.n. Humboldt Parrott's Ranch, Table Bluff, ca. 1.5 miles north of Loleta. Comment
  UC1103530  Sagina apetala Joseph P. Tracy 1921-4-24 5435 Humboldt Phillipsville Flat Northern Coast Ranges, S. Fork Eel R., Phillipsville Flat 91 Comment
  UC1115830  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1939-4-18 16212 Humboldt Garberville 152 Comment
  HSC69636  Salicornia depressa R. Kalal 1980-5-8 22 Humboldt Foster Rd. near Arcata 6 Comment
  UC490586  Salix Joseph P. Tracy 1932-7-31 10286 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  CAS-BOT-BC129884  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  POM182024  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt McKay Meadow. Tinity summit. Klamath Mountains. 1524 Comment
  CAS-BOT-BC103822  Salix exigua Harold E. Parks; Joseph P. Tracy 1931-5-17 0967 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104113  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01335 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC106851  Salix hookeriana Harold E. Parks 1931-5-12 0953 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC106855  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01222 Humboldt 1 mile north of Samoa Comment
  CAS-BOT-BC107766  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1210 b Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad Comment
  CHSC96697  Salix hookeriana Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  CHSC96715  Salix hookeriana Gordon Leppig 2005-4-8 2211 Humboldt Humboldt Bay Dunes and Wetlands. Eureka, swamp at west end of W. Hawthorne St. NAD 27 UTM Zone 10, 4515862 N, 400315 E. 3 Comment
  HSC96609  Salix hookeriana Gordon Leppig 2005-4-8 2211 Humboldt W end of W Hawthorne St., Eureka 3 Comment
  JEPS79975  Salix hookeriana Joseph P. Tracy 1941-3-9 16800 Humboldt along Eel R. (Camp Grant); along Eel River 48 Comment
  RSA152331  Salix hookeriana Joseph P. Tracy 1948-4-4 17958 Humboldt Near Samoa on Humboldt Bay. 6 Comment
  RSA239712  Salix hookeriana Larry E. DeBuhr 1973-4-23 995 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  UC1196630  Salix hookeriana J. P. Tracy 1905-3-26 2151 Humboldt Immediate vicinity of Eureka 0 Comment
  UC146207  Salix hookeriana J. P. Tracy 1905-4 2392 /2168 Humboldt Immediate vicinity of Eureka 0 Comment
  UC275500  Salix hookeriana Joseph P. Tracy 1925-2-1 6930 Humboldt lowlands near Salmon Creek Corners (around Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC275501  Salix hookeriana Joseph P. Tracy 1925-11-15 7314 Humboldt lowlands at foot of Table Bluff (near Salmon Creek); Northern Coast Ranges, Humboldt Bay 6 Comment
  UC490454  Salix hookeriana Joseph P. Tracy 1932-5-10 9938 Humboldt Bear R. at Capetown; Northern Coast Ranges, , Bear R. 30 Comment
  UC490457  Salix hookeriana Joseph P. Tracy 1932-5-10 9953 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC492337  Salix hookeriana Harold E. and Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon Trinidad (<place> from which No. 01000...was taken) Comment
  UC511999  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1238 Humboldt floodplain of Van Duzen R. at Blue Slide 91 Comment
  UC512096  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1213 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC1173620  Salix hookeriana Joseph P. Tracy 1936-2-23 14772 Humboldt Fortuna Eel River 15 Comment
  JEPS14787  Salix laevigata Joseph P. Tracy 1933-6-9 12528 Humboldt along Eel River Shively; Northern Coast Ranges 30 Comment
  UC481295  Salix lasiandra subsp. lasiandra Harold E. Parks and Joseph P. Tracy 1931-5-17 966 Humboldt mouth of Willow Creek at Trinity R. (banks of Willow Creek); Willow Creek 150 Comment
  JEPS14790  Salix lasiandra var. lasiandra Joseph P. Tracy 1933-7-16 12772 Humboldt at McKay Camp S. Fork Mt.; Northern Coast Ranges 1676 Comment
  UCD111578  Salix lasiandra var. lasiandra Joseph P. Tracy 1947-8-24 17896 Humboldt Trinity Summit, meadow at Box Camp. 1463 Comment
  CAS-BOT-BC107104  Salix lasiolepis Joseph P. Tracy 1931-3-31 9695 Humboldt Redwood Creek, at Berry's 274 Comment
  CAS-BOT-BC107584  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-12 1244 Humboldt Floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107619  Salix lasiolepis Doris K. Kildale 1927-3-22 2934 Humboldt Samoa Peninsula Comment
  CHSC96698  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC20005  Salix lasiolepis J. P. Tracy 1932-8-27 10753 Humboldt Blue Slide, Van Duzen River 91 Comment
  UC469403  Salix lasiolepis Joseph P. Tracy 1931-9-20 9689 Humboldt near R.R. Station Trinidad; Northern Coast Region, Trinidad 60 Comment
  UC481809  Salix lasiolepis H. P. Bracelin 1931-5-1 269 Humboldt Sylvandale, between Miranda and Meyers South Fork of Eel River Comment
  UC512025  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1333 Humboldt near bridge on Trinity Highway (foot of bank); Trinity River 152 Comment
  UC512038  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1323 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  UC512043  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1318 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  SBBG57833  Salix lucida subsp. lasiandra H. E. Parks 1931-3-14 959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC125623  Salix melanopsis Harold E. Parks 1931-5-14 0960 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  JEPS12935  Salix melanopsis Joseph P. Tracy 1931-5-3 9348 Humboldt Mad River near Blue Lake; Northern Coast Region 15 Comment
  JEPS12974  Salix melanopsis Joseph P. Tracy 1932-5-1 9850 Humboldt along Van Duzen River Alton; Northern Coast Ranges 30 Comment
  LA208879  Salix melanopsis Mrs. H. P. Bracelin; 1931-5-2 283 Humboldt E of Redwood Hwy.; 6 km. S of Alton 20.0 Comment
  SBBG28829  Salix melanopsis H. E. Parks 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  UC1196566  Salix melanopsis Joseph P. Tracy 1932-5-1 9846 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC1196636  Salix melanopsis Joseph P. Tracy 1932-5-1 9845 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC212983  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt mouth of Yager Creek; Northern Coast Region, Yager Creek 30 Comment
  UC481284  Salix melanopsis Harold E. Parks 1931-5-14 960 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UC481287  Salix melanopsis Harold E. Parks 1931-5-14 961 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UC481826  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  SEINET12003513  Salix piperi J. P. Tracy 1950-1 19366 Humboldt On foothills of the Cape Ridge, 0.5 mi S of town, 1 mi inland from Cape Mendocino 61 Comment
  CAS-BOT-BC129137  Salix scouleriana Joseph P. Tracy 1932-7-20 10738 Humboldt Trail below Corral Prairie - Trinity Summit, Klamath Mountains 1371 Comment
  CAS-BOT-BC129157  Salix scouleriana Joseph P. Tracy 1937-2-21 15230 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  JEPS12944  Salix scouleriana Joseph P. Tracy 1929-10-20 8680 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC1173626  Salix scouleriana Joseph P. Tracy 1937-3-21 15237 Humboldt Van Duzen R. at Grizzly Creek; Van Duzen R. 91 Comment
  UC490541  Salix scouleriana Joseph P. Tracy 1932-7-20 10738 Humboldt trail below Corral Prairie; Klamath Mts., Trinity Summit 1371 Comment
  UC506513  Salix scouleriana B. S. and C. S. Ball 1932-9-12 2532 Humboldt 2 mi. n. Trinidad (home of Mr. and Mrs. Harold E. Parks) Comment
  UC525975  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Cove (Parks Ranch) Trinidad; , Spruce Cove (Parks Ranch) Comment
  CAS-BOT-BC126275  Salix sessilifolia C. R. Ball; H. E. Parks; J. P. Tracy 1932-5-17 01337 Humboldt At Willow Creek, (Graham Ranch), near its junction with Trinity River 152 Comment
  HSC20099  Salix sitchensis H. E. Parks, S. T. Parks 1932-4-12 1111 Humboldt Blue Slide, Van Duzen River Comment
  HSC90192  Salix sitchensis Jean Hanson 1980-3-8 6 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90747  Salix sitchensis Jean Hanson 1980-3-8 24 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UC146204  Salix sitchensis Joseph P. Tracy 1904-3-6 2001 Humboldt immediate vicinity of Eureka 0 Comment
  UC481276  Salix sitchensis Harold E. Parks 1931-5-28 1029 Humboldt Little River Lagoon Comment
  UC519351  Salix sitchensis Joseph P. Tracy 1933-7-16 12773 Humboldt meadow at McKay Camp; Northern Coast Ranges, S. Fork Mts., McKay Camp 1676 Comment
  CDA39587  Salix sitchensis Gordon Leppig 2005-4-8 2206 Humboldt North Spit Swamp, west side of highway. Comment
  RSA168918  Salsola tragus Joseph P. Tracy 1950-8-20 19323 Humboldt Klamath River, near Slate Creek; Below Orleans 8 miles. 122 Comment
  HSC47490  Sambucus racemosa var. racemosa Sheila Logan 1978-4-9 13 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 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
  UC1225816  Sambucus racemosa var. racemosa Joseph P. Tracy 1947-8-24 17912 Humboldt e Box Camp; Trinity Summit 1676 Comment
  UC168945  Sambucus racemosa var. racemosa Joseph P. Tracy 1910-6-19 3155 Humboldt near Forks of Eel River; Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC91933  Sanicula arctopoides E. Mackey 1987-6-11 Humboldt Patrick's Point State Park, Palmer's Point trail to beach Comment
  UC179934  Sanicula bipinnatifida Joseph P. Tracy 1914-5-30 4478 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  RSA254743  Sanicula crassicaulis Thomas W. Nelson, James Nelson 1973-5-28 943 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1197098  Sanicula crassicaulis J. P. Tracy 1900-6-25 865 Humboldt immediate vicinity of Eureka 0 Comment
  UC1197092  Sanicula graveolens Joseph P. Tracy 1935-7-14 14069 Humboldt Grouse Mountain 1524 Comment
  UC1197086  Sanicula laciniata Joseph P. Tracy 1921-4-24 5454 Humboldt facing South Fork Eel River (Northern Coast Ranges, Phillipsville); Northern Coast Ranges, Phillipsville 121 Comment
  UC767191  Sanicula tracyi Joseph P. Tracy 1947-6-25 17717 Humboldt opposite Buck Mountain (along Van Duzen River, Dinsmore's); Van Duzen River, Dinsmore's 762 Comment
  HSC71008  Sanicula tuberosa J. M. DiTomaso 1981-5-15 2009 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  UC902008  Saxifraga mertensiana Joseph P. Tracy 1948-5-31 17999 Humboldt Harris 762 Comment
  HSC82129  Saxifragopsis fragarioides D. K. Imper 1985-6-19 Humboldt Above and Below FS road 10N01, just NW of Whitey's Peak 1372 Comment
  CDA43206  Scandix pecten-veneris Richard R. Halse 2015-3-26 9381 Humboldt Along U.S. Hwy. 101 ca 2.4 miles southwest of Weott. Comment
  HSC21646  Scandix pecten-veneris Richard Steele 1962-4-9 15 Humboldt 1/2 mi. W of Humboldt State campus 15 Comment
  SEINET3991728  Schoenolirion Unknown 1926-6-20 Humboldt Horse Mtn. Comment
  HSC93515  Schoenoplectus acutus var. occidentalis Gordon Leppig 1998-6-25 848 Humboldt Arcata Marsh and Wildlife Sanctuary, SW side of log pond 2 Comment
  JEPS95079  Schoenoplectus pungens var. badius Vernon Oswald and Lowell Ahart 1997-9-4 8848 Humboldt Big Lagoon County Park, at sw edge of Big Lagoon, entering lagoon at boat ramp Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  CAS-BOT-BC110928  Scirpus microcarpus Robert F. Thorne; P. Everett 1965-8-9 35320 Humboldt Clam Beach County Park along highway in shallow water of ditch. 3 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
  HSC7462  Scirpus microcarpus J. R. Kahl 1962-5-4 27 Humboldt 3 mi. S of Trinidad along old Hwy. 101 Comment
  UC1100832  Scirpus microcarpus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1198 Humboldt marsh and bog land at the southern outskirts Eureka; southern outskirts Eureka Comment
  UC275483  Scleranthus annuus subsp. annuus Joseph P. Tracy 1925-5-30 7032 Humboldt Laribee Valley; Northern Coast Ranges, Laribee Valley 701 Comment
  UC249514  Scoliopus bigelovii Joseph P. Tracy 1922-5-14 6049 Humboldt Kneeland Prairie 762 Comment
  HSC15635  Scoliopus bigelovii D. E. Anderson 1962-3-17 1938 Humboldt Comment
  UC1222533  Scoliopus bigelovii Joseph P. Tracy 1950-4-20 18611 Humboldt 1 mi. w. Dinsmore's (along Van Duzen R., opposite Buck Mt.); Van Duzen R. 762 Comment
  HSC21126  Scrophularia californica W. F. Nickel 1965-5-14 Humboldt N Arcata near Park Plaza Apts. Comment
  SD92951  Scrophularia californica Walter Bertsch 1953-7-30 231 Humboldt Redwood forest near Arcata on highway 101 Comment
  HSC57960  Sedum divergens G. L. Clifton, Griswold 1979-7-31 11660 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC63880  Sedum laxum subsp. heckneri Doris K. Kildale 1926-6-9 2176 Humboldt Horse Mountain. 1399 Comment
  HSC65898  Sedum laxum subsp. heckneri M. A. Baker 1980-6-16 1926 Humboldt Near Monks Camp. 1097 Comment
  HSC74194  Sedum laxum subsp. heckneri M. A. Baker 1980-7-24 3198 Humboldt Near Orleans Mtn. 1625 Comment
  UC1198837  Sedum laxum subsp. heckneri Joseph P. Tracy 1933-7-25 12899 Humboldt Grouse Mountain 1524 Comment
Read comments
Aug 17 2011
  UC1198838  Sedum laxum subsp. heckneri Joseph P. Tracy 1947-7-9 17865 Humboldt Horse Mountain Horse Mountain (on barren ledge of rock) 1432 Comment
Read comments
Aug 17 2011
  HSC73871  Sedum radiatum Gail Newton 1980-7-14 1461 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC98528  Sedum spathulifolium Cara Witte 2007-6-7 222 Humboldt Along National Forest 1. Approximately 1 mile north of cattle guard. Comment
  CAS-BOT-BC59127  Sedum spathulifolium Henry M. Pollard 1948-7-28 s.n. Humboldt River road near Orleans Comment
  HSC49097  Sedum spathulifolium var. pruinosum Patricia Shesgreen 1978-7-30 120 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  JEPS19021  Selaginella oregana Joseph P. Tracy 1920-10-24 5407 Humboldt near Korbel; Northern Coast Ranges 60 Comment
  HSC57618  Senecio integerrimus var. major G. L. Clifton, Griswold 1979-7-25 10743 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC82545  Senecio integerrimus var. major Thomas W. Nelson 1979-7-11 5003 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC98958  Senecio integerrimus var. major Cara Witte 2008-7-28 950 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  HSC96207  Senecio integerrimus var. major J. McIntire, S. Lyon 2005-6-8 5 Humboldt Cold Springs Camp; 7.4 S of Hwy. 299 on FS Rd. NF1 1402 Comment
  UC545823  Senecio minimus H. E. Parks 1931-9-1 1058 Humboldt Trinidad 76 Comment
  UC1118080  Senecio minimus H. L. Person 1931-7-30 Humboldt Fieldbrook Eureka Quad., Fieldbrook Comment
  UC1199239  Senecio sylvaticus Joseph P. Tracy 1936-8-24 15172 Humboldt 6 mi se Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC1223153  Senecio sylvaticus Joseph P. Tracy 1941-8-17 16992 Humboldt near High Prairie (Bald Mountain); Bald Mountain Comment
  HSC102003  Senecio triangularis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 904 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC102598  Senecio triangularis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1585 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC57876  Senecio triangularis Overton, Butler 1979-7-31 11412 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC581750  Senecio triangularis Joseph P. Tracy 1933-7-25 12846 Humboldt Grouse Mountain North Coast Ranges, Grouse Moutain 1524 Comment
  RSA20783  Senecio triangularis C. B. Wolf 1937-8-13 9247 Humboldt North Coast Range 11 mi. E. of Hoopa Valley on New Road towards Trinity Summit. 1524 Comment
  UC1223185  Senecio vulgaris Joseph P. Tracy 1943-11-28 17454 Humboldt Eel River Bar at mouth Van Duzen (near Alton); Eel River Bar at mouth of Van Duzen Comment
  UCD135816  Senecio vulgaris Linda M. Barker 1976-3-22 1337 Humboldt 3 miles west of Arcata. Comment
  BLMAR59  Senecio vulgaris Jennifer Anthony-Wheeler 1994-3-17 59 Humboldt Samoa/manilla dunes, growing alongside OHV trail on S.end of BLM prop 12 Comment
  SD43483  Sequoia sempervirens Carl B. Wolf 1944-10-25 11469 Humboldt along the Eel River Valley, Redwood Highway, 2.4 miles south of Scotia 60 Comment
  NY64474  Sequoia sempervirens P. Nuns 12 1967 s.n. Humboldt Our Lady of Redwoods Monastery, Whitehorn Comment
  POM182755  Sequoia sempervirens A. L. Bolton 1904-11-12 s.n. Humboldt Willits Comment
  BLMAR388  Sericocarpus oregonensis Jennifer Anthony-Wheeler 2004-9-1 388 Humboldt Horse Mtn, 18 miles up titlowhill rd 1584 Comment
  JEPS30462  Sherardia arvensis Lauramay T. Dempster 1963-7-8 3847 Humboldt 2.1 mi w Bridgeville (on road to Eureka, along Van Duzen River) 160 Comment
  POM256469  Sidalcea malachroides Joseph P. Tracy 1936-5-17 14812 Humboldt Fickle Hill, 6 miles southeast of Arcata. 610 Comment
  UC668144  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1936-8-2 15062 Humboldt French Camp Ridge 1066 Comment
  UC906705  Sidalcea malviflora subsp. asprella Harold E. Parks and Joseph P. Tracy 1942-7-1 11577 Humboldt Dinmore's 762 Comment
  HSC56434  Sidalcea malviflora subsp. patula Griswold, Butler 1979-7-12 7148 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC176968  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3598 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  HSC104340  Sidalcea oregana subsp. eximia James Regan,, Humboldt Redwood Co., LLC 1 Humboldt Table Bluff 46 Comment
  HSC82112  Silene bolanderi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5256 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  UC1198361  Silene californica Joseph P. Tracy 1948-8-8 18096 Humboldt Iaqua 609 Comment
  RSA185758  Silene californica John H. Thomas 1949-6-14 924 Humboldt Salmon River Valley near its junction with Klamath River. Comment
  UC161016  Silene californica Joseph P. Tracy July, 1908 2791 Humboldt ridge between Van Duzen and Mad Rivers (near Low Gap, Humboldt and Trinity Counties); Northern Coast Ranges, btw Van Duzen and Mad Rivers 914 Comment
  HSC56992  Silene campanulata Overton, Butler 1979-7-24 9559 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  CHSC110703  Silene campanulata subsp. campanulata Dean Wm. Taylor 2004-6-24 19130 Humboldt North Coast Range, Horse Mountain, along Titlow Hill road 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  JEPS49013  Silene campanulata subsp. glandulosa Hilda W. Grinnell 1932-7-11 8 Humboldt on ridge above McKay Camp (So Fork Mt.); , above McKay Camp Comment
  CAS-BOT-BC387078  Silene gallica Doris K. Kildale 1927-5-15 3166 Humboldt Cape Mendocino Comment
  UCD98674  Silene gallica H. E. Parks; S. T. Parks 1937-5-1 5938 Humboldt Trinidad, Spruce Cove. Comment
  HSC90243  Silene gallica Jean Hanson 1980-5-24 57 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  UC668082  Silene grayi Joseph P. Tracy 1932-7-12 10477 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  CAS-BOT-BC389049  Silene laciniata subsp. californica Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC4163  Silene laciniata subsp. californica Francis Winter 1960-5-7 Humboldt 2 mi. E of Pine Ridge Summit along hwy. 610 Comment
  UCD135877  Silybum marianum James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6872 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC45588  Sisyrinchium bellum Diane L. Reed 1978-5-27 142 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  HSC13915  Sisyrinchium bellum F. B. Plett 1963-3-31 14 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC23120  Sisyrinchium bellum Norman Dennis 1965-6-8 112 Humboldt 0.25 mi. S and 1 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county road, along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  UCR12945  Sisyrinchium californicum Margariet Wetherwax 1972-9-21 s.n. Humboldt Big Lagoon, just north of Patrick's Point State Park 6 Comment
  UC1197800  Smilacina racemosa Joseph P. Tracy 1908-6-9 2664 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC15049  Smilacina racemosa Mrs. M. H. Manning April, 1901 13 Humboldt near Hupa Comment
  UC1197799  Smilacina racemosa Joseph P. Tracy 1914-5-17 4474 Humboldt Cumens claim Northern Coast Region, region about Humboldt Bay (on ridge between Ryans Slough and Freshwater Creek) 304 Comment
  HSC69581  Solanum americanum R. Kalal 1980-6-8 15 Humboldt E of Clam Beach along slough 18 Comment
  HSC37163  Solanum furcatum J. D. Ackerman 1974-5-25 257 Humboldt S Trinidad Beach, S of Trinidad Head 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
  UC154016  Solanum physalifolium var. nitidibaccatum J. P. Tracy 1909-8-10 3074 Humboldt immediate vicinity of Eureka 0 Comment
  JEPS12167  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15316 Humboldt Bridgeville 198 Comment
  CAS-BOT-BC157484  Solanum umbelliferum H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail 1524 Comment
  HSC103077  Solanum xanti Sydney Carothers 2014-6-11 2 Humboldt Six Rivers National Forest, Lassics Botanical Area; south face Mt. Lassic, along trail to summit 1772 Comment
  HSC12415  Solidago elongata D. Santana 1970-10-18 41 Humboldt 11th and B St. Comment
  HSC36596  Solidago elongata J. O. Sawyer, Thomas W. Nelson, Linda M. Barker 1975-9-4 1306 Humboldt Megwill Point on Elkhead, N of Trinidad in Trinidad State Beach 15 Comment
  HSC58093  Solidago elongata G. L. Clifton, Griswold 1979-8-1 12006 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  JEPS32394  Solidago elongata Lincoln Constance 1934-6-25 925 Humboldt on Redwood Highway 4 mi n of Dyerville and n boundary Humboldt Redwood Park (Englewood, Bull Creek Region, South Fork Eel River); South Fork Eel River, Bull Creek Region, Englewood Comment
  UC535729  Solidago elongata Eleanor Armstrong 1934-8-23 1189 Humboldt Richardson Grove 121 Comment
  UC604624  Solidago elongata Joseph P. Tracy 1938-8-7 16103 Humboldt 5 mi n Garberville; South Fork of Eel River at mouth of Dean Creek 121 Comment
  CAS-BOT-BC365664  Solidago spathulata S. K. Harris 1939-9-5 s.n. Humboldt At Samoa Comment
  POM254120  Solidago spathulata S. K. Harris 1939-9-5 990 Humboldt At Samoa. Comment
  HSC39803  Sonchus asper Peter Sorensen 1976-7-11 Humboldt King Salmon Comment
  UC1070277  Sonchus oleraceus H. L. Person 1932-7-16 19437 Humboldt Highway n Trinidad; Rock Point Quad. Comment
Read comments
Aug 3 2007
  HSC89465  Sonchus oleraceus P. A. Daly 1986-3-12 69 Humboldt Trinidad Head, along trail 61 Comment
  HSC23255  Sparaxis tricolor Jana Kattenhorn 1971-4-7 214 Humboldt Around HSU campus, Arcata Comment
  HSC21345  Sparganium angustifolium Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  CHSC23303  Sparganium emersum subsp. emersum Robert F. Thorne; P. Everett 1965-8-9 35321 Humboldt Clam Beach County Park; along highway in ditch. 3 Comment
  UC672885  Sparganium emersum var. emersum Joseph P. Tracy 1928-9-2 8499 Humboldt near Fruitland 609 Comment
  RSA10096  Spartina densiflora Joseph P. Tracy 1924-8-4 6738 Humboldt Eureka, Marsh at R.R. station Comment
  HSC77898  Spergula arvensis R. D. Modafferi 1965-3-14 8 Humboldt 1.3 mi. S of Trinidad on old Hwy. 101 305 Comment
  HSC89998  Spergula arvensis Leonel Arguello 1989-6-24 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata. Middle of Fernstrom-Root trail towards N end of it Comment
  HSC95251  Spergularia macrotheca var. macrotheca Andrea Pickart 2002-6-27 125 Humboldt Mad River Slough and Dunes, N of parking lot area at N end of access road. 0 Comment
  UC161002  Spergularia rubra Joseph P. Tracy 1906-6-17 2492 Humboldt Eureka Northern Coast Region (dry bed of Rick's Prairie pond) 0 Comment
  CAS-BOT-BC149616  Spiraea douglasii H. E. McMinn 1922-7-1 289 Humboldt North of Scotia Comment
  HSC19754  Spiraea douglasii D. E. Anderson 1961-9-9 1793 Humboldt Along S shore of Big Lagoon Comment
  HSC97923  Spiraea douglasii Cara Witte 2007-6-19 291 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  UC275298  Spiraea douglasii R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  HSC16656  Spiranthes porrifolia J. Wendell Howe 1932-6-19 Humboldt Redway Comment
  UC13535  Spiranthes romanzoffiana Chesnut and Drew 1888-8-11 Humboldt Eureka Comment
  UC176181  Spiranthes romanzoffiana Joseph P. Tracy 1913-9-9 4398 Humboldt Big Lagoon Northern Coast Ranges 30 Comment
  HSC100155  Spirodela punctata Kenneth Clark 1979-4-21 148 Humboldt Off of Cranell Rd., 50 ft. E of Hwy. 101 Comment
  UC416584  Stachys ajugoides var. rigida Harley P. Chandler June 1901 1465 Humboldt Klamath River North Coast Ranges 304 Comment
  UC577322  Stachys ajugoides var. rigida Joseph P. Tracy 1933-6-24 12611 Humboldt Big Lagoon 3 Comment
  UC162688  Stachys ajugoides var. rigida Joseph P. Tracy 1911-7-11 3515 Humboldt hills along Supply Creek Northern Coast Ranges, Hoopa Valley 182 Comment
  UC577319  Stachys ajugoides var. rigida Joseph P. Tracy 1930-7-23 9126 Humboldt Cold Springs Northern Coast Ranges, Horse Mountain 1432 Comment
  UC726575  Stachys ajugoides var. rigida A. A. Heller 1937-6-11 15919 Humboldt between Bishop Pine Lodge and Big Lagoon (along U. S. Highway #101) Comment
  UCLA71138  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Founders Tree Humboldt State Park Comment
  HSC12371  Stachys chamissonis Steve Dorei 1970-10-14 99 Humboldt Big Lagoon Comment
  RSA82579  Stachys emersonii F. W. Peirson 1926-7-12 7034 Humboldt Redwood Creek, Orick. Comment
  SEINET12273953  Stachys rigida var. quercetorum J. P. Tracy 1950-1 18742 Humboldt at crossing of Bear River, near Petrolia, hills between town & Ocean 30 Comment
  UC668078  Stellaria borealis subsp. sitchana Joseph P. Tracy 1935-5-24 13817 Humboldt Eureka 91 Comment
  SEINET200613  Stellaria borealis subsp. sitchana Joseph P. Tracy 27 Jun - 30 Jul 1908 2884 Humboldt Valley of Van Duzen River, opposite Buck Mountain. 762 Comment
  HSC4271  Stellaria media S. R. Johnson 1965-3-23 17 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC103125  Stenanthium occidentale M. Mesler, Robin Bencie 2009-7-7 808 Humboldt Big Hill Rd, near Domingo Creek. 1367 Comment
  UC449998  Stephanomeria elata Joseph P. Tracy 1918-7-7 5037 Humboldt Garberville Northern Coast Ranges 152 Comment
  CAS-BOT-BC375660  Stephanomeria paniculata Doris K. Kildale 1925-8-17 1210 Humboldt Trinity Summit 1828 Comment
  HSC98578  Stipa lemmonii var. lemmonii Cara Witte 2007-6-1 171 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N38. 1502 Comment
  POM126166  Streptanthus tortuosus Joseph P. Tracy 1922-9-3 6106 Humboldt Klamath River at Bluff Creek. 152 Comment
  HSC57689  Streptopus amplexifolius G. L. Clifton, Griswold 1979-7-25 10908 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC1197806  Streptopus amplexifolius var. americanus Joseph P. Tracy 1934-7-12 13375 Humboldt Big Lagoon 30 Comment
  UC22724  Swertia albicaulis var. nitida Harley P. Chandler Jun 1901 1486 Humboldt Klamath River Northern Coast Ranges 426 Comment
  CAS-BOT-BC269567  Symphoricarpos albus var. laevigatus Carl B. Wolf 1930-10-29 1782 Humboldt Old Coast Road at Honeydew Post Office 152 Comment
  HSC58791  Symphyotrichum bracteolatum Overton, Butler 1979-7-31 11427 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC99171  Symphyotrichum chilense Elmer I. Applegate 1923-9-12 3992 Humboldt Stone Lagoon Comment
  UC1239632  Symphytum asperum Joseph P. Tracy 1933-6-25 12629 Humboldt around Humboldt Bay (Salmon Creek Valley); Northern Coast Ranges, , Salmon Creek Valley 30 Comment
  JEPS26261  Synthyris reniformis Joseph P. Tracy 1926-2-28 7379 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UC168958  Synthyris reniformis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5749 Humboldt Trinity Summit; North Coast Ranges Comment
  JEPS9924  Synthyris reniformis Joseph P. Tracy 1922-4-30 6039 Humboldt along road between three creeks and mouth of Willow Creek; Northern Coast Ranges, Brannan Mountain 914 Comment
  JEPS9927  Synthyris reniformis Joseph P. Tracy 1923-3-10 6152 Humboldt Van Duzen River, near Grizzly Creek; Van Duzen River 91 Comment
  CAS-BOT-BC376832  Tanacetum vulgare Carl B. Wolf 1937-9-12 9330 Humboldt Big Lagoon, So. side along Redwood Highway 6 Comment
  HSC6258  Taraxacum officinale Richard Steele 1962-3-4 3 Humboldt 1/2 mi. W of HSC campus 15 Comment
  RSA183568  Taraxacum officinale R. I. Bonn 1965-3-19 9 Humboldt 4 miles W of Arcata on Lanphere Road. Comment
  HSC38883  Tauschia kelloggii J. P. Smith, Steve Selva 1970-6-14 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC73247  Tauschia kelloggii M. A. Baker 1980-5-18 1311 Humboldt Near Black Mtn. 1006 Comment
  HSC38097  Taxus brevifolia Thomas W. Nelson, James Nelson 1976-5-30 2619 Humboldt McKeown Ranch, N of Dinsmore. Comment
  POM319590  Taxus brevifolia Patricia Wilder 1968-8-22 4428 Humboldt Bull Creek Flat, Humboldt Redwood State Park, north of Weott and west of U. S. 101. Coast Mountain range, south fork of Eel River. 61 Comment
  UC502917  Taxus brevifolia Joseph P. Tracy 1927-3-27 7865 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 762 Comment
  HSC99434  Tellima grandiflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 83 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC56716  Tellima grandiflora Harley P. Chandler May 1901 1232 Humboldt Humboldt Bay; North Coast Ranges 121 Comment
  HSC1186  Thelypteris nevadensis J. P. Tracy 1937-7-25 15556 Humboldt Happy Camp Mtn., Trinity Summit Range, NE of Hawkins Bar 1280 Comment
  UC1225806  Thelypteris nevadensis Joseph P. Tracy 1948-9-5 18171 Humboldt Happy Camp Mt.; Trinity Summit Range 1219 Comment
  RSA119371  Thermopsis robusta S. Tillett 1956-7-6 620 Humboldt 11 miles from Orleans on Bar Shanty Road 1159 Comment
  RSA1090  Thuja plicata E. R. Johnson 1928-8-26 1149 Humboldt 7 miles east of Arcata Comment
  RSA47093  Thuja plicata Doris K. Kildale 1926-8-28 2567 Humboldt Wild Cat ridge on Ferndale - Capetown road near Boynton s 457 Comment
  UC212991  Thuja plicata Joseph P. Tracy 1920-9-19 5401 Humboldt North Fork Mad River North Coast Ranges, North Fork Mad River 304 Comment
  UCD170787  Thuja plicata Gordon Leppig 1998-3-15 718 Humboldt Quarry Rd. off Jacoby Creek. 97 Comment
  UC11023  Thysanocarpus curvipes C. C. Marshall 1888-1 Humboldt Comment
  UC668049  Thysanocarpus curvipes Joseph P. Tracy 1938-5-1 15736 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC41607  Tiarella trifoliata D. E. Anderson, J. P. Smith 1971-6-18 - 1054 Humboldt 1 mi. W of Lord Ellis Summit Comment
  UC154149  Tiarella trifoliata var. unifoliata Mrs. M. H. Manning Sept. 1901 Humboldt near Hupa; near Hupa Comment
  CAS-BOT-BC436914  Tiarella trifoliata var. unifoliata C. C. Harris; S. K. Harris 1936-6-16 660 Humboldt Yager Road from Carlotta 152 Comment
  HSC12522  Tiarella trifoliata var. unifoliata J. P. Tracy 1901-6-30 1209 Humboldt Near Eureka 0 Comment
  UC1211979  Tiarella trifoliata var. unifoliata H. W. Grinnell 1932-7-23 49 Humboldt South Fork Mountain; below McKay Camp 1524 Comment
  SEINET3888616  Tofieldia occidentalis Carl B. Wolf 1934-7-2 5878 Humboldt Snow Camp (Mts. E. of Korbel). Near small lake.; 0 1372 Comment
  BLMAR634  Tonella tenella Jennifer Wheeler 2011-6-15 634 Humboldt Lacks Creek, Pine Ridge Road 914 Comment
  UCR45380  Tonella tenella Barry Silver 1986-4-23 518 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC71597  Torilis arvensis M. A. Baker 1980-6-26 2409 Humboldt Near Sims Creek 610 Comment
  UC906646  Torilis arvensis Joseph P. Tracy 1946-6-15 17557 Humboldt Berry's Mt on Trinity Highway east of Redwood Creek 609 Comment
  SEINET244810 Image available Torreyochloa pallida var. pauciflora J. P. Tracy 1934-7-18 13429 Humboldt Grouse Mountain. 1524 Comment
  CAS-BOT-BC169174  Toxicodendron diversilobum Alice Eastwood; John Thomas Howell 1937-6-22 4712 Humboldt Near Harris Comment
  CAS-BOT-BC323057  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  RSA591513  Tracyina rostrata J. L. Strother 1996-5-30 1363 Humboldt NE of Alderpoint, easterly from Alderpoint-Blocksburg Road, 1km (0.6mi) on unpaved Stewart Ranch Road. 160 Comment
  HSC62982  Tragopogon porrifolius M. Dean Griswold Jr. 1979-5-29 80 Humboldt NW of Plant Operations, Humboldt State University campus Comment
  CAS-BOT-BC399990  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  HSC58100  Triantha occidentalis subsp. occidentalis G. L. Clifton, Griswold 1979-8-1 12030 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  CAS-BOT-BC517423  Triantha occidentalis subsp. occidentalis Doris K. Kildale 1925-8-16 1185 Humboldt Trinity Summit 1917 Comment
  HSC14449  Trichostema lanceolatum D. E. Anderson 1963-10-6 2878 Humboldt Mad River bed, across from Essex Junction. Comment
  HSC35710  Trichostema laxum Thomas W. Nelson, B. Reinhardt 1975-7-30 2094 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  CDA40991  Trichostema laxum E. C. Whitney 1965-9-2 s.n. Humboldt [no additional data] 0 Comment
  UC154002  Trichostema oblongum Joseph P. Tracy 1908-6 2824 Humboldt Buck Mountain, NW slope Northern Coast Ranges 1219 Comment
  UC577372  Trichostema oblongum Joseph P. Tracy 1927-8-27 8327 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC17928  Trientalis latifolia Paul Shields May 1955 Humboldt HSC Campus Comment
  HSC31556  Trientalis latifolia Glenn McGourty 1974-5-11 46 Humboldt Along Maple Creek Rd. Comment
  HSC54597  Trientalis latifolia Overton, Butler 1979-7-24 9676 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC70781  Trientalis latifolia Gail Newton 1980-7-14 1515 Humboldt Near Deadman Ridge 1097 Comment
  HSC45615  Trientalis latifolia Diane L. Reed 1978-5-7 49 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  SEINET12157031  Trifolium albopurpureum J. P. Tracy 1948-1 17989 Humboldt W side of top of Spruce Grove Ridge near Harris Comment
  UCD107571  Trifolium albopurpureum W. Williams 1951-1 s.n. Humboldt Keithly Ranch. Comment
  UC1197234  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1922-4-30 6021 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1223496  Trifolium bifidum var. bifidum Joseph P. Tracy 1935-5-25 13903 Humboldt betw forks of creek; Dobbyn Creek Comment
  UC1197181  Trifolium bifidum var. decipiens Joseph P. Tracy 1906-5-6 2448 Humboldt near Hydesville; North Coast Ranges 60 Comment
  HSC97623  Trifolium cyathiferum Cara Witte 2007-6-4 195 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  RSA249399  Trifolium cyathiferum D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-17 5705 Humboldt McKeown Ranch north of Dinsmore Comment
  UC1223487  Trifolium cyathiferum Joseph P. Tracy 1934-6-27 11082 Humboldt 2 mi s Horse Mtn (Grouse Mtn, Cold Springs) 1432 Comment
  UC1223490  Trifolium cyathiferum Joseph P. Tracy 1950-7-6 19007 Humboldt 2 mi s Burr Valley (on Albee Rd) 1158 Comment
  UC495733  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1932-5-10 9948 Humboldt near Petrolia (Mattole River); Northern Coast Ranges 15 Comment
  UCD109725  Trifolium dichotomum R. Tofsrud 1948-1 s.n. Humboldt Humboldt County. Comment
  BLMAR741  Trifolium dubium Jennifer Wheeler 2015-5-18 741 Humboldt King range, at corrals or strawberry rock grazing allotment 121 Comment
  UCD108860  Trifolium dubium P. B. Kennedy 1929-6-14 10323 Humboldt Eureka. Comment
  UC162814  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1908-6 2759 Humboldt opposite Buck Mtn; Valley of Van Duzen River 762 Comment
  UC495645  Trifolium gracilentum Joseph P. Tracy 1932-4-24 9810 Humboldt betw Miranda and Redway (South Fork of Eel River); Northern Coast Ranges 91 Comment
  HSC44836  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3520 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  HSC99727  Trifolium longipes subsp. oreganum Glenn W. K. Shelton 2010-7-16 22 Humboldt Buck Flat on Titlow Hill Rd. 1512 Comment
  UC199105  Trifolium longipes var. elmeri Chesnut and Drew July 1888 Humboldt S. Fork of Trinity Comment
  UC1223332  Trifolium longipes var. oreganum Joseph P. Tracy 1947-7-27 17836 Humboldt Horse Mtn Comment
  UC495658  Trifolium longipes var. oreganum Joseph P. Tracy 1927-6-12 8122 Humboldt Horse Ranges Northern Coast Ranges Comment
  SEINET7097947  Trifolium macrocephalum A. G. Vestal 1937-1 s.n. Humboldt Ca. 14 miles south of Garberville on Route 101. UTM Zone 10, 433343 mE, 4422303 mN. Lat. 39 57' 00ao N, Long. 123 46' 49ao W NAD 27 (Converted to WGS84 decimal degrees) Comment
  UC1223356  Trifolium microcephalum Joseph P. Tracy 1939-4-29 16259 1/2 Humboldt Orleans 121 Comment
  HSC15221  Trifolium microcephalum J. P. Tracy 1926-5-2 7429 Humboldt Trinity River near the S Fork Comment
  UC1223364  Trifolium microdon Joseph P. Tracy 1950-6-8 18731 Humboldt Bear River ridge 609 Comment
  HSC15148  Trifolium microdon J. W. Johnson 1962-5-13 1354 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  RSA168856  Trifolium microdon Joseph P. Tracy 1938-6-8 15867 Humboldt Samoa Sand dunes Comment
  UC1197503  Trifolium obtusiflorum Joseph P. Tracy 1903-5-24 1916 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  UC1223338  Trifolium obtusiflorum Joseph P. Tracy 1933-6-24 12614 Humboldt hills at n end Big Lagoon Comment
  UC1197489  Trifolium oliganthum Joseph P. Tracy 1922-4-30 6002 Humboldt near Willow creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1197513  Trifolium willdenovii Joseph P. Tracy 1927-5-15 8037 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC33757  Trifolium wormskioldii Ron Ralston 1975-5-24 79 Humboldt Samoa Dunes off Samoa Blvd., across from boat landing Comment
  JEPS66096  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6273 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  UC198572  Trifolium wormskioldii Joseph P. Tracy 1917-5-30 4801 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  JEPS66087  Trifolium wormskioldii W. L. Jepson 1902-6-25 1934 Humboldt Korbel to Angel's Ranch Comment
  HSC37965  Triglochin concinna Peter Sorensen 1976-6-16 Humboldt Woodley Island, Humboldt Bay Comment
  HSC96468  Triglochin maritima Gordon Leppig 1997-6-19 465 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  RSA667224  Triglochin maritima George K. Helmkamp, E. A. Helmkamp 2001-7-8 6995 Humboldt North coastal strand: North spit of Samoa Peninsula, 0.5 miles N of CA-255 bridge over Humboldt Bay. 6 Comment
  HSC97549  Triglochin striata Ivy Watson 2008-9-20 30 Humboldt N of mouth of Mad River, along small tributary E of sand dunes 4 Comment
  CAS-BOT-BC520051  Trillium albidum Doris K. Kildale 1926-3-23 1601 Humboldt Humboldt County 21 Comment
  CAS-BOT-BC133391  Trillium ovatum Alice Eastwood; John Thomas Howell 1934-4-11 1330 Humboldt Patrick's Point Comment
  CHSC3179  Trillium ovatum Robert D. Briggs 1966-4-2 R- 144 Humboldt Eight miles east of Blue Lake on State hwy. 299. Comment
  CAS-BOT-BC133395  Trillium ovatum Doris K. Kildale 1926-3-25 1630 Humboldt Foot of Liscom Hill near Essex 30 Comment
  SJSU10558  Trillium ovatum C. P. Hansen 1966-4-6 70 Humboldt by Kneeland Rd 20 mi E of Eureka Comment
  UC1197816  Trillium ovatum Joseph P. Tracy 1930-7-16 8967 Humboldt forest near McKay Camp McKay Camp; S. Fork Mt. 1676 Comment
  UC1222435  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1932-5-10 9947 Humboldt terraces near Petrolia (Mattole Valley); Northern Coast Ranges, Mattole Valley 60 Comment
  JEPS26220  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1917-5-30 4805 Humboldt Little River Beach Northern Coast Ranges, Little River Beach (sand dunes) 6 Comment
  SDSU19199  Triphysaria pusilla Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3009 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.3 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1385 Comment
  UCR39973  Triphysaria pusilla L. P. Janeway 1984-5-13 772 Humboldt Along Kneeland/Bridgeville Road c. 11 mi east of Post Office 715 Comment
  SEINET4097498  Triphysaria versicolor O. M. Clark 1932-1 5332 Humboldt North Eureka. Comment
  UC1222444  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1927-4-24 7929 Humboldt Eureka 6 Comment
  UC27193  Triphysaria versicolor subsp. versicolor Harley P. Chandler May, 1901 1101 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  HSC31180  Trisetum canescens D. E. Anderson 1972-6-20 5751 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  RSA183534  Trisetum canescens H. S. Logsdon 1964-5-10 11 Humboldt 4 miles NE of Orick at Boye's Prairie Comment
  UCD93885  Trisetum canescens R. Tofsrud 1948-9-1 s.n. Humboldt Road between Horse Mt. and Grouse Mt. 1371 Comment
  SBBG889  Triteleia hyacinthina K. K. Muller 1954-6-21 632 Humboldt Olsen Crk, 2 mi ENE of Mad River Comment
  SD52191  Triteleia hyacinthina Frank Stephens 1894-5-14 10295 Humboldt Eel River. 320 Comment
  HSC2994  Triteleia hyacinthina J. Wendell Howe 1934-7-24 1316 Humboldt Horse Mtn., Cold Spring Comment
  UC666898  Triteleia laxa Joseph P. Tracy 1930-7-27 8897 Humboldt Bear River Ridge 609 Comment
  CAS-BOT-BC526355  Triteleia laxa Doris K. Kildale 1926-5-16 2005 Humboldt Miranda, South Fork of Eel River Comment
  UC1225865  Triteleia laxa Joseph P. Tracy 1947-6-8 17704 Humboldt open flat by old Strong's District School House (five mi e of Carlotta) 45 Comment
  CAS-BOT-BC85852  Tsuga heterophylla P. C. Everett; E. K. Balls 1953-10-13 18654 Humboldt 11.3 mi. to 16.6 mi. e. of jct. with Hwy 101 on Hwy 299 from Blue Lake 640 Comment
  HSC31495  Umbellularia californica Steve Selva, Roger Jensen 1974-8-27 85 Humboldt Along Hwy. 299 4.5 mi. E of Blue Lake Comment
  HSC46102  Umbellularia californica J. P. Smith, J. O. Sawyer 1975-4-6 8058 Humboldt N of Briceland on rd. to Hwy. 101 Comment
  HSC59117  Umbellularia californica Terry Roth 1979-5-24 85 Humboldt 0.25 mi. down N Bank Rd. from its junction with Hwy. 10 exit at residence 30 Comment
  SEINET12104679  Umbellularia californica E. A. York 1990-1-10 2667 Humboldt USGS Redwood Field Station, Arcata Comment
  CAS-BOT-BC193958  Vaccinium cespitosum L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp 1219 Comment
  CAS-BOT-BC193962  Vaccinium cespitosum Doris K. Kildale 1927-7-10 3725 Humboldt Gans Prairie, Bald Hills Comment
  UC562345  Vaccinium cespitosum Joseph P. Tracy 1935-7-26 14270 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  CAS-BOT-BC199223  Vaccinium membranaceum Joseph P. Tracy 1935-7-22 14121 Humboldt Forks of Tish-Tang-a-Tang Creek, Trinity Summit 1371 Comment
  CAS-BOT-BC199318  Vaccinium ovatum Joseph P. Tracy 1948-10-24 18257 Humboldt Near Fruitland 304 Comment
  HSC47491  Vaccinium ovatum Sheila Logan 1978-4-9 15 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC7904  Vaccinium ovatum R. A. Rasp 1964-5-20 43 Humboldt 4 mi. W of Arcata off Lanphere Rd. on Lanphere Ranch Comment
  HSC95645  Vaccinium ovatum Andrea Pickart 2002-4-5 41 Humboldt Lanphere Dunes 15 Comment
  RSA66951  Vaccinium ovatum E. K. Balls 1951-5-4 16421 Humboldt Nelson Grove to Robinson Grove, Hwy 101, 20 mi. north of Garberville. Comment
  UC1197768  Vaccinium ovatum Joseph P. Tracy 1918-5-5 4919 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC154182  Vaccinium ovatum Harley P. Chandler Jun 1901 1397 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Valley 152 Comment
  HSC7922  Vaccinium parvifolium J. Pursell 1964-10-11 10113 Humboldt Old Hwy. 101, 3 mi. N Patricks Point State Park Comment
  UC602499  Valeriana californica Joseph P. Tracy 1935-7-30 14381 Humboldt Salmon Summit 2103 Comment
  CAS-BOT-BC76049  Vancouveria hexandra Mrs. H. E. Wilder 1933-5-20 s.n. Humboldt Carlotta. Comment
  CHSC53306  Vancouveria hexandra L. P. Janeway 1984-5-13 782 Humboldt Along Redwood House Road ca 1 1/2 mi from Hwy 36. 228 Comment
  HSC68321  Vancouveria hexandra J. P. Smith 1973-5-26 6841 Humboldt Scotia Bluffs along the Eel River near Rio Dell 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
  UC503042  Vancouveria hexandra Joseph P. Tracy 1927-6-19 8196 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC1541237  Vancouveria hexandra H. E. and S. T. Parks May, 1930 757 Humboldt in wet woods along the Van Duzen River; along the Van Duzen River Comment
  UC1541238  Vancouveria hexandra Harold E. Parks May 1933 4288 Humboldt near Trinidad; near Trinidad Comment
  CAS-BOT-BC76090  Vancouveria planipetala Peter H. Raven; R. Snow 1958-7-20 13631 Humboldt Friday Ridge Road to Grouse Mountain, 10.8 miles southwest of junction with United States Highway 299. Comment
  RSA438026  Vancouveria planipetala Miss Hutchinson s.n. Humboldt Unspecified. Comment
  UC1222526  Veratrum californicum var. californicum Joseph P. Tracy 1950-9-2 19347 Humboldt 2 mi s Field's Landing town (at Still Ranch) 6 Comment
  HSC57172  Veratrum insolitum Overton, Butler 1979-7-26 9981 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC98057  Veratrum insolitum Cara Witte 2007-7-19 544 Humboldt Along National Forest 1. Approximately 1 mile south of turnoff to Cold Spring. 1423 Comment
  JEPS11185  Verbascum blattaria Lincoln Constance 1934-5-26 658 Humboldt South Fork of Eel River s end Dyerville Bridge (Bull Creek Region); South Fork Eel River, Bull Creek Region 45 Comment
  HSC21176  Verbascum blattaria David Adams 1960-8-20 Humboldt Whitlow (Sequoia) 60 Comment
  RSA167234  Verbascum blattaria Joseph P. Tracy 1950-7-9 18980 Humboldt Willow Creek canyon, along Trinity Hwy. Comment
  SD88369  Veronica americana Darley F. Howe 1972-5-7 Humboldt Trinidad Comment
  HSC21195  Veronica americana P. Markle 1962-5-22 53 Humboldt Along road to City of Arcata reservoir Comment
  HSC21201  Veronica peregrina P. Markle 1962-5-16 41 Humboldt Near City of Arcata Reservoir on road 61 Comment
  RSA80042  Veronica scutellata F. W. Peirson 1923-7-11 3838 Humboldt 7 miles N of Arcata. Comment
  HSC78983  Veronica scutellata L. P. Janeway 1984-5-16 795 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd., 0.25 mi. NW of the boat ramp 3 Comment
  JEPS16498  Veronica scutellata Milo S. Baker 1923-8-3 173 Humboldt 6 mi n of Arcata; North Coast trip Comment
  HSC21200  Veronica serpyllifolia subsp. humifusa D. E. Anderson 1965-9-5 4093 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  UC709405  Vicia americana var. americana Joseph P. Tracy 1935-5-26 13908 Humboldt Iaqua 609 Comment
  UC303185  Vicia benghalensis Joseph P. Tracy 1924-6-28 6701 Humboldt Hydesville; Northern Coast Ranges 91 Comment
  HSC15270  Vicia gigantea W. F. Nickel 1965-5-15 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir Comment
  HSC71618  Vicia hirsuta J. P. Smith 1973-5-26 6812 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  PASA271  Vicia sativa Frank W. Peirson 1926-7-13 Humboldt Mad River, vicinity of Blue Lake Comment
  RSA91237  Vicia sativa F. W. Peirson 1923-7-11 3625 Humboldt 7 miles N of Arcata. Comment
  UCD108854  Vicia sativa subsp. nigra Linda M. Barker 1976-5-13 1481 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC89710  Vicia sativa subsp. sativa Eric German, Klara Varga, Michele Cardinaux 1989-4-28 43 Humboldt Hwy. 299 near Korbel, 7.5 mi. E of Hwy. 101/299 intersection 122 Comment
  HSC3232  Vinca major S. J. Hawks 1965-4-6 85 Humboldt Luffenholtz Beach Comment
  CAS-BOT-BC263833  Viola Lena E. Bowley 1941-4-1 s.n. Humboldt Unspecified Comment
  BLMAR258  Viola adunca Jennifer Anthony-Wheeler 1998-4-22 258 Humboldt King range, strawberry rock grazing allotment 280 Comment
  CAS-BOT-BC263939  Viola adunca Alice Eastwood 1907-4-21 31 Humboldt Trinidad Comment
  HSC102013  Viola adunca M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 914 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC21763  Viola adunca Doris K. Kildale 1926-3-27 1662 Humboldt Gans Prairie - Bald Hills Comment
  RSA46845  Viola adunca Doris K. Kildale 1927-7-10 3723 Humboldt Gans Prairie, Bald Hills. Comment
  SEINET200809 Image available Viola adunca Joseph P. Tracy, Ernest B. Babcock 1912-5-11 3586 Humboldt Near Hydesville 30 Comment
  POM98595  Viola adunca F. W. Peirson 1926-7-12 7028 Humboldt Coast Range, back of Orick. 1067 Comment
  UC66188  Viola cuneata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5642 Humboldt from Bair's to Hoopa; North Coast Ranges, Hoopa Mountain Comment
  HSC73155  Viola glabella M. A. Baker 1980-5-18 1299 Humboldt Near Black Mtn. 1006 Comment
  HSC97729  Viola glabella C. Witte 2007-5-10 22 Humboldt Board Camp. 1/2 miles from National Forest 1, on Forest Service Road 4N38. 1395 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
  UC1103558  Viola macloskeyi Joseph P. Tracy 1947-6-26 17744 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1198455  Viola ocellata J. P. Tracy 1903-5-23 1894 Humboldt Alder Point, on Eel River 152 Comment
  JEPS50263  Viola palustris Joseph P. Tracy 1923-5-31 6242 Humboldt Northern Coast Ranges, Eurkea Eurkea; Northern Coast Ranges, Eurkea 0 Comment
  JEPS50377  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1922-5-29 6067 Humboldt Northern Coast Ranges, Head of South Yager Creek South Yager Creek; Northern Coast Ranges, South Yager Creek 762 Comment
  HSC32282  Viola purpurea subsp. purpurea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5615 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC39683  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1976-6-16 2738 Humboldt Along old trail from lookout to Blocksburg 1524 Comment
  UC66202  Viola purpurea subsp. purpurea Joseph Burtt Davy and Walter C. Blasdale 1899-5 5660 Humboldt North Coast Ranges; ; Summit of ridge, Hoopa Mt., from Bairs to Hoopa Comment
  UC1761996  Viola sempervirens Joseph P. Tracy 1913-5-4 4054 Humboldt Kneeland Prarie North Coast Ranges 762 Comment
  CAS-BOT-BC203050  Vitis californica L. R. Abrams 1918-6-16 7151 Humboldt Willow Creek Comment
  UCD93456  Vulpia bromoides A. A. Beetle; G. L. Stebbins Jr., J. P. Tracy 1942-6-2 3459 Humboldt near Loleta Swamp, south of Eureka. Comment
  SEINET11683266  Vulpia bromoides K. S. Erdman 1970-1 4809 Humboldt Gold Bluff Beach about 3 mi NW of Berry Glen and US 101 (Redwood N.P.) Comment
  UC1145198  Vulpia microstachys var. ciliata Joseph P. Tracy 1939-5-14 16295 Humboldt opposite Buck Mountain (Dinsmore's, flats along Van Duzen River); Van Duzen River 762 Comment
  CAS-BOT-BC183940  Vulpia microstachys var. microstachys Doris Kildale Gillespie 1931-6-7 10605 Humboldt South Fork Mt. Black Lookout 1726 Comment
  UC1145192  Vulpia microstachys var. pauciflora Joseph P. Tracy 1942-6-23 17224 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC277197  Vulpia microstachys var. pauciflora Joseph P. Tracy 1921-6-12 5818 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC9928  Vulpia myuros H. E. Parks, S. T. Parks Jun 1937 5897 Humboldt Spruce Cove. Trinidad. 61 Comment
  UCD94427  Vulpia myuros Collector unknown 1923-7-12 26 Humboldt Briceland. Comment
  SEINET200325 Image available Vulpia myuros var. myuros J. P. Tracy 1900-1 858 Humboldt Eureka. Comment
  HSC79517  Vulpia octoflora var. octoflora Kenneth Clark 1980-3-24 543 Humboldt Shelter Cove, N fork of Dead Man's Gulch. 76 Comment
  CAS-BOT-BC128814  Whipplea modesta L. R. Abrams 1916-7-11 6016 Humboldt Mouth of Grizzly Creek on Van Duzen River - Redwood Forest Comment
  HSC35936  Whipplea modesta Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2029 Humboldt French Camp, Bald Hills. Comment
  HSC70379  Whipplea modesta M. A. Baker 1980-6-7 1796 Humboldt Near Brush Mtn. 287 Comment
  UC70517  Whipplea modesta Mrs. M. H. Manning before Apr. 1901 Humboldt Hoopa Comment
  UCR32168  Whipplea modesta David J. Keil 1983-7-2 17322 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  HSC100587  Whipplea modesta Carl C. Marshall Jul 1886 332 Humboldt Mountains. Comment
  HSC102193  Wyethia angustifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1107 Humboldt Andy's Camp 1564 Comment
  HSC58331  Wyethia angustifolia Overton, Butler 1979-8-2 12632 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS32069  Wyethia angustifolia Joseph P. Tracy 1936-6-17 14947 Humboldt nw slope Buck Mountain 762 Comment
  UC582646  Wyethia angustifolia Joseph P. Tracy 1935-6-23 13988 Humboldt French Camp Ridge 1066 Comment
  HSC73870  Wyethia longicaulis Gail Newton 1980-7-14 1462 Humboldt Near Last Chance Ridge. 1219 Comment
  CAS-BOT-BC382122  Xanthium strumarium Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC76424  Xerophyllum tenax Denis Kearns 1981-6-24 29 Humboldt Near Cedar Camp 1219 Comment
  HSC98549  Xerophyllum tenax Cara Witte 2008-6-11 711 Humboldt National Forest Road 5N10. 2 miles south of intersection with Forest Service Road 5N41. 1286 Comment
  UC1173649  Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp 1066 Comment
  CAS-BOT-BC527078  Xerophyllum tenax Volney Rattan 1903-1-1 s.n. Humboldt Near Mad River Bridge Comment
  HSC8414  Zeltnera muehlenbergii J. P. Tracy 1938-7-18 16085 Humboldt Fickle Hill, 4 mi. S of Arcata 366 Comment
  SD104877  Zeltnera muehlenbergii Darley F. Howe 1979-6-25 Humboldt Highway 96, 12.3 miles north of Willow Creek. Comment
  HSC15743  Zigadenus fremontii Elrid H. Spinas 1948-6-16 57 Humboldt Horse Mtn. Comment
  HSC104431  Zigadenus fremontii Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  CAS-BOT-BC532737  Zigadenus micranthus Doris K. Kildale 1926-3-23 1606 Humboldt Alton Hill Comment



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