Search Results — 2000 specimen records retrieved (1359 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)
Results for search: County=HUMBOLDT; Source=All;   
Map/download results:
BerkeleyMapper with layers and yellow flags
Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)
 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.
Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC77963  Abies concolor Henry M. Pollard 1944-9-1 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC72979  Abies concolor Gail Newton 1980-7-14 1514 Humboldt Near Deadman Ridge 1097 Comment
  HSC99822  Abies concolor T. Jimerson, J. Pageau 1979-8-10 715 Humboldt Near Tish Tang A Tang Ridge 1463 Comment
  RSA54126  Abies concolor Henry M. Pollard 1944-09 s.n. Humboldt Near Orleans. Comment
Read comments Oct 1 2019
  CDA468  Abies grandis George Loughner 2000-10-6 PDR# 023915 Humboldt Ridge, E of Blue Lake. 0 Comment
  UC1193117  Abies grandis P. J. Zinke 1950-9-21 163 Humboldt Salmon Creek 1 mi upstream from Mill Creek Salmon Creek, Quad. 29C1 152 Comment
  UC502907  Abies magnifica var. shastensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8963 Humboldt in forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1267074  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Horse Trail Ridge Six Rivers National Forest (sw slope) 1828 Comment
Read comments May 21 2011
  BLMAR72  Abronia latifolia Jennifer Anthony-Wheeler 1994-5-18 72 Humboldt Samoa/manilla dunes, growing throughout dunes 6 Comment
  HSC62997  Abronia latifolia David Wheeler 1979-5-10 103 Humboldt Mad River Beach County Park .25 mi. NW of parking lot Comment
  HSC93532  Abronia latifolia Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 746 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon 2 Comment
  OBI35878  Abronia latifolia David J. Keil 1983-7-1 17287 Humboldt Ca. 5 mi NW of Petrolia along Mattole Rd Comment
  SD41412  Abronia latifolia Edith A. Purer 1932-7-27 4154 Humboldt Near Samoa Comment
  SEINET10838870  Abronia latifolia Mary Merello 1993-6-19 Merello 663 Humboldt Along Petrolia-Capetown Road. Pacific Coastal dunes. 40 Comment
  RSA0025083  Abronia latifolia Gary D. Wallace, Larry E. DeBuhr 1972-5-23 1083 Humboldt Along the beach at Freshwater Lagoon just south of Orick. Comment
  CAS-BOT-BC331587  Acer macrophyllum Doris K. Kildale 1926-8-15 2527 Humboldt Willow Creek near mouth - between first and second fords 152 Comment
  CAS-BOT-BC331588  Acer macrophyllum Doris K. Kildale; L. B. Kildale 1930-4-13 9575 Humboldt Bridgeville 289 Comment
  CDA23775  Acer negundo var. californicum Jeanette N. Griffin 2008-8-28 s.n. Humboldt Ferndale 0 Comment
  HSC31635  Achillea millefolium Glenn McGourty 1974-4-27 21 Humboldt Upper banks of the Mattole River Comment
  HSC72789  Achillea millefolium M. A. Baker 1980-6-26 2399 Humboldt Near Sims Creek 610 Comment
  JEPS36916  Achillea millefolium Lincoln Constance 1934-5-29 716 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region, Upper Look Prairie 365 Comment
  HSC100420  Achillea millefolium Carl C. Marshall Jul 1887 437 Humboldt Everywhere. Comment
  UC963846  Achillea millefolium H. E. Parks and S. T. Parks 1943-8-1 24246 Humboldt along coastal hills Egg Point; North Coast Ranges, Trinidad 121 Comment
  HSC56446  Achlys triphylla Griswold, Butler 1979-7-12 7196 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC3330  Achlys triphylla Francis Winter 1960-4-23 Humboldt 1 mi. S of Simpson Creek, Korbel-Maple Creek Rd. 213 Comment
  SEINET5585534 Image available Achnatherum lemmonii Joseph P. Tracy 1950-1 18787 Humboldt Mail Ridge, north of Harris 7 miles 1036 Comment
  HSC55866  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-7-25 10888 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC101545  Actaea rubra J. P. Smith, J. O. Sawyer 2009-8-11 12653 Humboldt Green Diamond Resource land along State Route 299. 762 Comment
  HSC32122  Actaea rubra D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5589 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  RSA249394  Actaea rubra subsp. arguta D. E. Anderson, Thomas W. Nelson, S Dowty 1972-6-14 5589 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC44521  Adenocaulon bicolor Brad Klipfel 1973-7-1 128 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC73574  Adenocaulon bicolor Gail Newton 1980-7-14 1511 Humboldt Near Deadman Ridge 1097 Comment
  JEPS33912  Adenocaulon bicolor W. L. Jepson 1932-7-27 16428 Humboldt Bull Creek 106 Comment
  UC249778 Image available Adiantum X tracyi Joseph P. Tracy 1924-9-16 6868 Humboldt <collector's garden> Eureka; Northern Coast Ranges 30 Comment
  JEPS35153  Adiantum aleuticum W. L. Jepson 1921-9-10 9461 Humboldt Garberville Comment
  UC203315  Adiantum aleuticum Joseph P. Tracy 1916-6-25 4742 Humboldt e Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  HSC33657  Adiantum aleuticum M. Wetherwax 1975-6-1 173 Humboldt Next to Simpson Cr. Comment
  HSC948  Adiantum aleuticum W. R. Supernaugh, Jr. 1964-12-4 12 Humboldt Along rd. to Jolly Giant Reservoir Comment
  HSC953  Adiantum aleuticum Gene S. Van Horn 1962-5-20 24 Humboldt 0.5 mi. S of large quarry, 200 yards S of Jacoby Creek 46 Comment
  HSC960  Adiantum jordanii D. E. Anderson 1965-5-15 3701 Humboldt About 2 mi. NW of Hoopa on Bald Hills Rd. Comment
  UC1239772  Adiantum jordanii Joseph P. Tracy 1927-4-2 7883 Humboldt S Fork of Eel River Phillipsville; Northern Coast Ranges 121 Comment
  UC1223124  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt Friday Ridge 1219 Comment
  HSC39937  Agoseris grandiflora Linda M. Barker 1976-7-5 1643 Humboldt 3 mi. W of Arcata. Comment
  HSC70406  Agoseris grandiflora M. A. Baker 1980-6-7 1842 Humboldt Near Ammon Creek 732 Comment
  UC1239510  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1932-6-14 10159 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  OBI6921  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mi W of Mud Springs (to Box camp on W slope of Trinity summit) Comment
  POM161907  Agoseris heterophylla Joseph P. Tracy 1921-6-12 5816 Humboldt Kneeland Prairie 762 Comment
  UC1199486  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1938-6-9 15888 Humboldt top of ridge 3 mi w of Harris 914 Comment
  HSC8836  Agrostis densiflora D. C. Juve 1964-5-16 41 Humboldt Camp Tish-Tang, Campbell Creek Ranger Station, off Hwy 96 Comment
  RSA87118  Agrostis densiflora Joseph P. Tracy 1927-6-26 8216 Humboldt Stone Lagoon Comment
  CAS-BOT-BC127285  Agrostis exarata William Arents Silveus 1938-7-10 2969 Humboldt Eureka. Comment
  CAS-BOT-BC127286  Agrostis exarata W. R. Dudley 1899-1-1 s.n. Humboldt Arcata. Comment
  SEINET4558396  Agrostis exarata J. P. Tracy 1902-1 1757 Humboldt Immediate vicinity of Eureka 152 Comment
  UC1052443  Agrostis exarata H. E. and S. T. Parks 1952-6 7553 Humboldt Spruce Cove Trinidad 60 Comment
  UC1145153  Agrostis exarata Joseph P. Tracy 1936-6-28 15030 Humboldt in bog Bald Mountain, Lake Prairie 1066 Comment
  CAS-BOT-BC139497  Agrostis hallii Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  CAS-BOT-BC139498  Agrostis hallii W. A. Silveus 2981 Humboldt Dyerville. Comment
  HSC37235  Agrostis hallii Lon Hall 1975-6-19 400 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC89506  Agrostis hallii M. Roantree 1985-5-30 71 Humboldt SW side of Trinidad Head. Comment
  UC526881  Agrostis hallii Joseph P. Tracy 1925-8-22 7237 Humboldt North Fork of Eel River, around Humboldt Bay Northern Coast Region, Humboldt Bay 30 Comment
  CAS-BOT-BC139358  Agrostis idahoensis Joseph P. Tracy 1935-7-27 14303 Humboldt Trinity Summit. At McKay Prairie. 1584 Comment
  SEINET3916494  Agrostis oregonensis W. J. Ferlatte, B. D. Rogers 1966-8-15 3124 Humboldt 6 miles east of Korbel.; 0 Comment
  UC526880  Agrostis oregonensis Joseph P. Tracy 1927-8-22 8344 Humboldt bog in cold wet meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CDA20604  Agrostis pallens B. Freeman 2005-8-1 PDR 1368990 Humboldt North Coast; Big Lagoon. 0 Comment
  UCD56339  Agrostis stolonifera A. H. Murphy 1947-7-30 s.n. Humboldt 1.2 mile west of Hydesville, along the Rohnerville Road. Comment
  RSA183535  Aira caryophyllea G. Bos 1965-5-15 256 Humboldt 8 miles west of Berry Summit along U.S. 299. 762 Comment
  UC922024  Aira caryophyllea Joseph P. Tracy 1950-6-15 18814 Humboldt on Harris Rd. near Huestis Rock (6 mi se of Trinidad) 914 Comment
Read comments Nov 27 2009
  UCD55702  Aira caryophyllea A. H. Murphy 1951-5-15 n.s. Humboldt 1 mile southeast of the Fruitland-Whitlow road junction on Whitlow road. 304 Comment
  UCD55705  Aira caryophyllea Joseph P. Tracy 1941-6-15 16907 Humboldt Wilder Ridge, east of Kings Peak. 762 Comment
  UCD55739  Aira caryophyllea A. A. Beetle; G. L. Stebbins 1942-6-3 3587 Humboldt Near Garberville, 1.4 miles on road to Harris. Comment
Read comments Jan 21 2009
  UCD55761  Aira caryophyllea Linda M. Barker 1976-4-30 1411 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1198269  Alisma plantago-aquatica Joseph P. Tracy 1930-10-12 9214 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  UC249547  Allium amplectens Joseph P. Tracy 1921-6-12 5813 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  POM169690  Allium bolanderi H. P. Chandler 1901-06 1434 Humboldt Klamath River. Comment
  HSC102616  Allium campanulatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1603 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC78654  Allium campanulatum D. K. Imper 1982-7-2 1490 Humboldt Near Connely Creek, N Fork 1493 Comment
  HSC32146  Allium falcifolium D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5600 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 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
  SEINET3884719  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-6-10 5418 Humboldt Blocksburg Quad. Along road to Red Mountain 0.5 miles west of junction with Swayback Ridge Road.; 0 1372 Comment
  HSC12536  Allium membranaceum J. Allen DeCou 1899-6-22 263 Humboldt Trail to Trinity Summit Comment
  UC666906  Allium membranaceum Joseph P. Tracy 1929-6-3 8599 Humboldt Trinity River Valley at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  SEINET12053631  Allium unifolium J. P. Tracy 1950-1 18890 Humboldt Burr Valley Comment
  RSA119366  Allotropa virgata S. S. Tillett 1956-7-6 619 Humboldt 11 mi. from Orlenas, on Bar Shanty Road. 1159 Comment
  UC275562  Alnus rhombifolia Joseph P. Tracy 1923-10-14 6574 Humboldt Northern Coast Ranges, North Dobbyn Creek North Dobbyn Creek; Northern Coast Ranges, North Dobbyn Creek 152 Comment
  HSC69582  Alnus rubra R. Kalal 1979-5-18 66 Humboldt Union St. between 11th and 12th St. 34 Comment
  OBI6019  Alnus rubra Carl B. Wolf 1931-8-28 2366 Humboldt Redwood hwy , 4-1/2 mi N of fortuna on the road to Eureka Comment
  POM106497  Alnus rubra Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  SEINET12030339  Alnus rubra F. H. Utech 1986-1 86 -415 Humboldt between Capetown & Ferndale on Mattole Creek, SW slope of Bear River Ridge 100 Comment
  CAS-BOT-BC138147  Alopecurus aequalis var. aequalis Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley place, Orleans region. Comment
  HSC8898  Alopecurus geniculatus W. F. Cartwright 1965-5-20 77 Humboldt 5 mi. S of Arcata on Old Arcata Rd. Comment
  SEINET6820704 Image available Alopecurus geniculatus A. A. Beetle, Stebbins; Tracy 1942-6-2 3458 Humboldt Loleta Swamp, S of Eureka Comment
  UC1145047  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt mouth of Elk R. near Eureka 6 Comment
  HSC8895  Alopecurus pratensis D. J. McVean 1965-4-19 18 Humboldt Arcata bottoms, along Jackson Rd. at intersection with Samoa Blvd. Comment
  CAS-BOT-BC13705  Ambrosia chamissonis H. E. Parks 1941-8-1 24181 Humboldt Big Lagoon Comment
  CAS-BOT-BC13707  Ambrosia chamissonis A. A. Heller 1924-7-21 13869 Humboldt Salt marsh at Eureka Comment
  SEINET200734  Amelanchier alnifolia J. P. Tracy 1908-6-27 2768 Humboldt Valley of Van Duzen River opposity Buck Mtn 762 Comment
  HSC48400  Amelanchier alnifolia var. semiintegrifolia Brad Klipfel 1973-6-10 87 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC98537  Amelanchier alnifolia var. semiintegrifolia Cara Witte 2008-6-11 709 Humboldt Forest Service Road 5N10. At intersection of Forest Service Road 5N41. 1294 Comment
  HSC45631  Amelanchier pallida Diane L. Reed 1978-4-22 8 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  SEINET3917966  Ammophila arenaria Dziekanowski, Dunn; Bennett 1976-8-6 2504 Humboldt Collected in the vicinity of a state park on the beach opposite McKinleyville.; 0 Comment
  UC584207  Ammophila arenaria David D. Keck and J. Clausen 1935-6-16 3387 Humboldt Mouth of Little River Little River Comment
  RSA0090987  Amsinckia intermedia H. E. Parks 1933-03 4282 Humboldt Trinidad. Comment
  RSA0089915  Amsinckia menziesii H. E. Parks 1933-03 4282 Humboldt Trinidad. Comment
  HSC90482  Amsinckia spectabilis Jean Hanson 1981-5-10 132 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  HSC26883  Anagallis arvensis Clifton Raymond Chesbrough 1973-6-19 90 Humboldt 1/2 mile S of Trinidad along the coast Comment
  HSC68320  Anagallis arvensis J. P. Smith 1973-5-26 6817 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA247393  Anaphalis margaritacea Gary D. Wallace 1966-9-12 702 Humboldt Along Hwy. 299 E of Arcata near Willow Creek; Comment
  JEPS55207  Anemone deltoidea W. L. Jepson 1934-5-7 16690 Humboldt Bull Creek Comment
  UC535706  Anemone deltoidea Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  RSA304843  Anemone deltoidea James R. Shevock 1971-5-30 681 Humboldt Biants Ave, Humboldt St. Park. 152 Comment
Read comments Oct 20 2009
  UC503041  Anemone oregana Joseph P. Tracy 1928-4-1 8408 Humboldt n end Big Lagoon; Nort Coast Region 152 Comment
  HSC44403  Anemone oregana var. oregana R. York 1978-5-6 155 Humboldt Around Onion Lake on Bluff Creek Rd. 1220 Comment
  HSC21444  Angelica genuflexa D. E. Anderson 1961-9-30 1852 Humboldt Blue Lake Comment
  JEPS14204  Angelica genuflexa Joseph P. Tracy 1937-9-30 15690 Humboldt Dow's Prairie 60 Comment
  HSC71406  Angelica hendersonii J. M. DiTomaso 1980-8-1 1818 Humboldt Table Bluff, S of Eureka 9 Comment
  UC1197380  Angelica hendersonii Joseph P. Tracy 1936-8-17 15156 Humboldt Table Bluff 91 Comment
  HSC21452  Angelica lucida Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  JEPS14245  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  UC1197374  Angelica tomentosa Joseph P. Tracy 1939-8-16 16411 Humboldt Horse Mountain 1432 Comment
  UC169302  Anisocarpus madioides Joseph P. Tracy 1909-7-31 3033 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC494177  Anisocarpus madioides Parks and Tracy 1930-5-25 864 Humboldt Laribee Valley Comment
  UC89528  Anisocarpus madioides Harley P. Chandler June, 1901 1313 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC5993  Anisocarpus madioides Francis Winter 1960-4-24 Humboldt 1 mi. W of Hoopa on Bair Rd. 305 Comment
  HSC56443  Antennaria howellii Griswold, Butler 1979-7-12 7190 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC56962  Antennaria suffrutescens Overton, Butler 1979-7-23 9477 Humboldt Near Horse Mountain Creek, close to the town of Willow Creek 1317 Comment
  HSC10094  Anthoxanthum occidentale J. W. Johnson 1962-3-14 1120 Humboldt Arcata, Lanphere Farm, Samoa Peninsula, woods at the side of Miller Ln. Comment
  SEINET11682983  Anthoxanthum occidentale K. S. Erdman 1970-1 4790 Humboldt Redwood National Park, 0.5 mi inside Holter Ridge entrance along Bald Hills Road SE of Orick Comment
  SEINET7614635 Image available Anthoxanthum occidentale Richard R. Halse 1996-1 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
  HSC47943  Anthoxanthum odoratum Michael A. Watkins 1978-6-10 5 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  UC1056038  Anthoxanthum odoratum H. E. and S. T. Parks 1952-4 24444 Humboldt Trinidad, Spruce Cove Spruce Cove; Trinidad, Spruce Cove 60 Comment
  UC582468  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1936-6-27 16003 Humboldt Miranda 91 Comment
  HSC57887  Apocynum androsaemifolium Overton, Butler 1979-7-31 11438 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC98059  Apocynum androsaemifolium Cara Witte 2007-7-11 498 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  SDSU2585  Apocynum androsaemifolium D. F. Howe 1961-8-2 3117 Humboldt 23.5 miles east of Orick on Bald Mt. Road. 914 Comment
  UC1197616  Apocynum androsaemifolium Joseph P. Tracy 1911-7-11 3518 Humboldt ridge next s. of Hoopa Valley (w. side of Trinity R. near Willow Creek); Northern Coast Ranges, Trinity R. 304 Comment
  UC154173  Apocynum cannabinum Harley P. Chandler June, 1901 1426 Humboldt Klamath R. North Coast Ranges, Klamath R. 304 Comment
  RSA21323  Apocynum pumilum var. rhomboideum C. B. Wolf 1937-8-13 s.n. Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  SEINET12104677  Aquilegia formosa E. A. York 1990-1-10 2663 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC18054  Aquilegia formosa var. formosa N. D. Dennis 1965-5-5 47 Humboldt 2 mi. N of Trinidad on Hwy. 101 Comment
  HSC31632  Aquilegia formosa var. formosa Glenn McGourty 1974-4-27 18 Humboldt 1 mi. from Capetown Bridge Comment
Read comments May 26 2016
  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
  UC161543  Arabis glabra Joseph P. Tracy 1906-5-13 2456 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  HSC48750  Arabis holboellii var. retrofracta Brad Klipfel 1973-6-10 76 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58043  Arabis platysperma Gilbert Muth 1979-8-1 11891 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC3249  Aralia californica H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  JEPS66576  Arbutus menziesii W. L. Jepson 1902-7-10 2004 Humboldt South Fork Trinity River, Martin's Ranch, (Expedition) from Ukiah to the Hupa Indian Reservation South Fork Trinity River; , Martin's Ranch 396 Comment
  UC585951  Arctostaphylos Joseph P. Tracy 1932-7-12 10474 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  SD42342  Arctostaphylos canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast Range, Horse Mountain. 1525 Comment
  RSA20914  Arctostaphylos canescens var. candidissima C. B. Wolf 1937-8-13 9229 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  BLMAR245  Arctostaphylos columbiana Jennifer Anthony-Wheeler 1997-7-24 245 Humboldt Lacks Creek, growing along rdside & throughout regenerating 1219 Comment
  CAS-BOT-BC23765  Arctostaphylos columbiana Joseph P. Tracy 1947-5-24 17693 Humboldt Big Lagoon, Devil's Canyon 152 Comment
  CAS-BOT-BC23767  Arctostaphylos columbiana Joseph P. Tracy 1927-8-14 8331 Humboldt Big Lagoon 152 Comment
  CAS-BOT-BC23773  Arctostaphylos columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff 91 Comment
  HSC12231  Arctostaphylos columbiana Gary J. Stebbins 1970-2-2 6 Humboldt Along Hwy. 101, just across Patrick's Point State Park Comment
  HSC33254  Arctostaphylos columbiana Thomas W. Nelson 1975-3-20 1750 Humboldt Along Kneeland Rd. just S of its junction with Maple Creek Rd. Losey property. 671 Comment
  HSC37842  Arctostaphylos columbiana Thomas W. Nelson, James Nelson 1976-3-11 2267 Humboldt Beside Hwy. 101 along N side of Table Bluff Comment
  JEPS38969  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  LA42320  Arctostaphylos columbiana H. E. Parks; December 1931 4950 Humboldt Hobson's Trinidad 60 Comment
  RSA622694  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27668 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC397305  Arctostaphylos columbiana Joseph P. Tracy 1923-3-31 6169 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 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-BC23738  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of Van Duzen River. Comment
  SEINET11998372  Arctostaphylos columbiana W. Knight, Knight, I. 1989-1 6476 Humboldt Patrick's Point State Park 24 Comment
  HSC7631  Arctostaphylos glandulosa Doris K. Kildale 1927-1-30 2899 Humboldt Big Lagoon, flat on S side of Lagoon Comment
  HSC7633  Arctostaphylos glandulosa J. Pursell 1964-10-18 10185 Humboldt 5 mi. from Hwy. 299 on Bald Mtn. Road Comment
  OBI14679  Arctostaphylos hispidula Carl B. Wolf 1937-8-13 9226 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New Road towards Trinity summit 1219 Comment
  JEPS38942  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1934-3-11 13154 Humboldt French Camp Ridge Comment
  SEINET11998344  Arctostaphylos klamathensis Unknown 1989-1 s.n. Humboldt Fish Lake Area near Weitchpec, near Klameth River 549 Comment
  RSA632801  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27791 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  HSC74675  Arctostaphylos manzanita Gail Newton 1981-5-16 2177 Humboldt Near Bug Creek. 1228 Comment
  CAS-BOT-BC38829  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1930-8-3 9141 Humboldt Dinsmore's Ranch: On Van Duzen River opposite Buck Mountain. 670 Comment
  UC1198679  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-7-11 15417 Humboldt vicinity of Garberville 121 Comment
  CAS-BOT-BC40068  Arctostaphylos nevadensis subsp. knightii Doris K. Kildale 1926-8-22 2585 Humboldt On road from Orick to Martin's Ferry. 716 Comment
  SEINET11989136  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1982-1 4517 Humboldt Tilden Botanic Garden, Berkeley, orig. from French Camp on road between Orick & Wichepec Comment
  CAS-BOT-BC46627  Arctostaphylos patula L. B. Kildale 1930-8-10 10533 Humboldt Snow Camp. Head of Redood Creek. Comment
  UC1198668  Arctostaphylos patula Joseph P. Tracy 1942-6-23 17263 Humboldt open ridges near Water-dog Lakes; Trinity Summit 1828 Comment
  UCD53433  Arctostaphylos patula A. E. Wieslander 1931-5-19 199 Humboldt Near Orleans. Comment
  CAS-BOT-BC43983  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17499 Humboldt Eureka 45 Comment
  SD41455  Arctostaphylos uva-ursi Edith A. Purer 1932-7-26 4131 Humboldt Samoa Comment
  UCSB15774  Arctostaphylos uva-ursi 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  RSA246678  Arctostaphylos uva-ursi var. coactilis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35148 Humboldt Samoa Dunes. 3 Comment
  HSC70634  Arctostaphylos viscida R. York 1980-5-18 605 Humboldt Near Black Mtn. 390 Comment
  HSC76328  Arctostaphylos viscida Denis Kearns 1981-7-6 52 Humboldt Near Mosquito Lake 1122 Comment
  UCD129123  Arctotheca calendula T. C. Fuller; G. D. Barbe 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale. Comment
  CAS-BOT-BC137569  Aristida oligantha Joseph P. Tracy 1933-8-27 13000 Humboldt Robertson's Range. Vicinity of Garberville. 121 Comment
  CAS-BOT-BC64584  Armeria maritima subsp. californica Ira L. Wiggins 1930-7-11 4683 Humboldt Near Samoa. Comment
  RSA246710  Armeria maritima subsp. californica Robert F. Thorne, Percy C. Everett 1965-8-5 35158 Humboldt Samoa Dunes. 3 Comment
  HSC4712  Arnica cernua D. E. Anderson 1965-6-1 3753 Humboldt Horse Mountain. 1220 Comment
  UC176419  Arnica cordifolia Joseph P. Tracy 1913-6-17 4177 Humboldt at summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  BLMAR189  Arnica discoidea Donald Hazlett 1994-6-7 189 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC64162  Arnica discoidea J. O. Sawyer, K. A. Sawyer 1979-6-24 3406 Humboldt Slopes alongside Aikens Creek. 366 Comment
  HSC64195  Arnica discoidea J. O. Sawyer, M. A. Erickson 1979-6-23 3373 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC8985  Arrhenatherum elatius True Hoyle 1967-7-24 29167 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass 1006 Comment
  CAS-BOT-BC84834  Artemisia douglasiana Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  HSC41002  Artemisia douglasiana J. O. Sawyer 1975-10-17 2713 Humboldt S slopes of N Trinity Mtn. Comment
  HSC38212  Artemisia douglasiana R. Sutherland 1976-8-19 17 .19876 Humboldt 482 Comment
  UC582424  Artemisia dracunculus Joseph P. Tracy 1932-8-27 10751 Humboldt on: Blue Slide Van Duzen River 91 Comment
  CAS-BOT-BC90872  Artemisia pycnocephala Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  SEINET201065  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt Samoa Comment
  UC275467  Artemisia pycnocephala H. E. Parks and Joseph P. Tracy 1925-6-26 7135 Humboldt Samoa Sand Dunes Humboldt Bay, Samoa Sand Dunes 15 Comment
  RSA34239  Artemisia suksdorfii C. B. Wolf 1927-8-29 1220 Humboldt Devils' Gate, S of Cape Mendocino Comment
  SEINET10725832  Artemisia suksdorfii Harold E. Parks Parks 24178 Humboldt Common on sand dunes near ocean. Comment
  UC127815  Artemisia suksdorfii Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5544 Humboldt near Scotia Comment
  UCD112908  Aruncus dioicus var. acuminatus Joseph P. Tracy 1932-7-18 10708 Humboldt Klamath Mountains. Trinity Summit. Head of Brett Hole. 1828 Comment
  CHSC101365  Aruncus dioicus var. pubescens C. Sander; J. Wheeler 2004-9-1 CA 330 -62 Humboldt Ecoregion 14. Growing along Titlow Hill road off of Hwy 299. 1188 Comment
  RSA20964  Aruncus sylvester Carl B. Wolf 1937-9-13 9339 Humboldt N coast range, E Fork of Willow Creek at Forest Service Camp. 457 Comment
  UC672846  Asarum caudatum Joseph P. Tracy 1935-7-23 14160 Humboldt Trinity Summit, lower end of Brett Hole 1584 Comment
  RSA261553  Asarum caudatum Suzanne May 1967-4-15 21 Humboldt On Kneeland Road, 5 miles east of Bridgeville 244 Comment
  UC494106  Asarum caudatum H. E. Parks 1931-3-24 918 Humboldt Near Orick Comment
  UC677691  Asarum caudatum C. C. and S. K. Harris 1936-6-14 652 Humboldt Yager Road from Carlotta 457 Comment
  HSC56479  Asarum hartwegii Griswold, Butler 1979-7-12 7310 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  UC1173688  Asclepias cordifolia Joseph P. Tracy 1939-5-6 16277 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC40010  Aspidotis densa Thomas W. Nelson, Jane Nelson 1976-7-1 2906 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC54555  Aspidotis densa Overton, Butler 1979-7-24 9561 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  RSA12562  Aster alpigenus C. B. Wolf 1934-7-2 5877 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  RSA18141  Aster chilensis C. B. Wolf 1927-8-22 808 Humboldt 1 mile south of Orick. Comment
  RSA167200  Aster foliaceus var. lyallii Joseph P. Tracy 1950-8-7 19271 Humboldt Box Camp, Trinity Summit 1463 Comment
  RSA44410  Aster oregonensis H. M. Pollard 1947-8-30 s.n. Humboldt North road along Klamath River near Van Fleet Ranch, Orleans region. Comment
  JEPS16848  Astragalus agnicidus H. Tosten 1931-6-7 Humboldt Tosten & Pierce Ranch, near Bear Buttes, S of Miranda, Humboldt Co. Comment
  UC1197707  Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten and Pierce Ranch); ; Tosten & Pierce Ranch, near Bear Buttes, S of Miranda, Humboldt Co. 762 Comment
  HSC71068  Astragalus rattanii var. rattanii Thomas W. Nelson, Jane P. Nelson 1977-5-30 3402 Humboldt Above Mad River at Anderson's Ford. 640 Comment
  UC1174495  Astragalus rattanii var. rattanii Volney Rattan June 1882 Humboldt Comment
  CHSC118459  Astragalus umbraticus Courtney Wilson; Matt Groberg, Bob Meinke 2011-6-30 Humboldt On Green Diamond Resourse Company private land. Roadside edge on west slope of French Camp Ridge. 853 Comment
  HSC43206  Asyneuma prenanthoides R. Sutherland 1976-8-13 27 .13876 Humboldt Mouth of Redwood Creek at S Fork of Eel River 87 Comment
  UCD66898  Asyneuma prenanthoides Esther Perry 1930-7-11 Humboldt Humboldt State Park. Comment
  HSC35625  Atriplex leucophylla Thomas W. Nelson, James Nelson 1975-8-5 2138 Humboldt Along S spit of Humboldt Bay ca. 1 mi. N of Table Bluff. Comment
  HSC4345  Atriplex leucophylla Jerry Parker 1968-10-26 206 Humboldt Driftline 0.5 mi. S of Big Lagoon. Comment
  BLMAR25  Avena barbata Brad Barr June, 1982 25 Humboldt King range, on beach 0 Comment
  HSC38380  Avena barbata Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  UC187270  Avena barbata Joseph P. Tracy 1906-4-29 2426 Humboldt near Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  UC526703  Avena fatua Joseph P. Tracy 1926-5-9 7457 Humboldt hills near Bridgeville; North Coast Ranges 609 Comment
  POM312956  Azolla filiculoides Malcolm A. Nobs, S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach Comment
  UC303081  Azolla filiculoides Joseph P. Tracy 1904-9-11 2143 Humboldt Fields Landing; Northern Coast Region 30 Comment
  POM318604  Baccharis douglasii Patricia Wilder 1968-8-21 4410 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  UC581762  Baccharis glutinosa Joseph P. Tracy 1933-8-27 13001 Humboldt between Garberville and Harris Garberville (Robertson Ranch) 762 Comment
  RSA43689  Baccharis pilularis H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  HSC39984  Baccharis pilularis subsp. consanguinea Linda M. Barker 1976-9-3 1691 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1198287  Barbarea orthoceras Joseph P. Tracy 1914-6-28 4516 Humboldt near Hydesville 60 Comment
  HSC57311  Barbarea verna Terry Griswold, Marvin Butler 1979-7-10 6301 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC525613  Beckmannia syzigachne Joseph P. Tracy 1928-6-24 8472 Humboldt Valley of South Yager Creek 762 Comment
  HSC5185  Bellis perennis W. F. Nickle 1965-3-13 Humboldt N Arcata near Park Plaza Apts. Comment
  SFV18538  Bellis perennis M. Cavelti 2002-5-4 34 Humboldt On A street off 11th street, along western side of road. 20 Comment
  HSC62831  Bensoniella oregona William Davilla 1980-10-16 1219 Humboldt Snow Camp Mtn. 1390 Comment
  HSC74672  Berberis aquifolium Gail Newton 1981-5-16 2172 Humboldt Near Bug Creek. 1228 Comment
  HSC3361  Berberis darwinii G. L. Cribbs 1966-5-7 1049 Humboldt Cooper Canyon at end of L St. 15 Comment
  HSC39525  Berberis nervosa Thomas W. Nelson, Jane Nelson 1976-6-15 2715 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  SDSU13767  Berberis nervosa Harvey 1938-8-14 2318 Humboldt U.S. 299. Arcata-Willow Creek. Comment
  UC1198382  Berberis nervosa Joseph P. Tracy 1924-4-27 6642 Humboldt along hwy near Ruby Creek (Willow Creek) 609 Comment
  HSC3366  Berberis pinnata G. N. Bos 1965-5-2 246 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  HSC35712  Berberis pinnata Thomas W. Nelson 1975-10-12 2236 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC42013  Berberis pinnata M. A. Baker 1977-4-23 173 Humboldt 2.5 mi. S of Shelter Cove Rd., S fork of Bear Creek at Wailaki Campground 561 Comment
  UC1222894  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt near Slate Creek (Klamath River, below Orleans 8 mi); Klamath River 121 Comment
  HSC95878  Blechnum spicant Will Ferrand 2002-2-2 20 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  UC62521  Blechnum spicant Marshall A. Howe 1896-5-30 Humboldt Eureka Comment
  HSC72946  Blechnum spicant M. Sacks 1977-4-8 4 Humboldt S end of Patrick's Point State Park 0.2 mi. W of Hwy. 101 and 5 mi. N of Trinidad 61 Comment
  HSC984  Blechnum spicant Gene S. Van Horn 1962-1-5 5 Humboldt Arcata, Near mouth of W Creek entering H.S.C. reservoir 61 Comment
  CAS-BOT-BC15801  Boechera acutina Joseph Prince Tracy 1932-7-11 10396 Humboldt Klamath Mountains. Trinity Summit. At Corral Prairie. 1524 Comment
  UC1198303  Boechera platysperma Joseph P. Tracy 1935-6-28 14325 1/2 Humboldt Head of Devils Hole Trinity Summit 1828 Comment
  RSA182023  Boisduvalia glabella Joseph P. Tracy 1916-6-19 4726 Humboldt Northern coast ranges: Dobbyn Creek 183 Comment
  HSC7509  Bolboschoenus maritimus subsp. paludosus Paul Shields 1955-9-15 Humboldt 4 mi. NW of Arcata. Comment
  CDA5649  Borago officinalis T. C. Fuller 1958-6-17 598 -58 Humboldt Ferndale. 0 Comment
  HSC75263  Boykinia major J. O. Sawyer, M. A. Ericksen 1980-8-18 4057 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  CAS-BOT-BC420269  Boykinia occidentalis Harley P. Chandler 1901-6-1 1501 Humboldt Klamath River 426 Comment
  SBBG26977  Boykinia occidentalis R. S. Ferris 1937-8-21 9390 Humboldt above beach, Shelter Cove Comment
  SBBG34704  Boykinia occidentalis H. and M. Dearing 1939-5-26 3451 Humboldt redwood forest N of Trinidad Comment
  UCSB2543  Boykinia occidentalis Phillips, Priscilla 1958-6-10 Humboldt Bishop Pine Lodge, 2 mi. n. of Trinidad Comment
  HSC37961  Brassica rapa Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  HSC104034  Briza minor E. R. Fyer 2015-4-26 25 Humboldt Eureka; vacant lot off Waterfront Drive 3 Comment
  HSC84929  Briza minor R. N. Raynor 1935-6-7 Humboldt Ft. Seward Comment
  HSC89421  Briza minor P. A. Daly 1984-7-15 32 Humboldt Trinidad Head 61 Comment
  HSC99871  Briza minor Glenn W. K. Shelton 2010-7-7 9 Humboldt 6 mi. S of Kneeland Airport along Kneeland Rd. 658 Comment
  CAS-BOT-BC484220  Brodiaea elegans subsp. elegans F. J. Kirby 1958-7-1 1217 Humboldt E of Bridgeville 304 Comment
  UC1197743  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1904-7-4 2114 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  UC180489  Bromus carinatus var. carinatus Joseph P. Tracy 1914-5-14 4447 Humboldt Fort Seward 121 Comment
  UC552685  Bromus carinatus var. carinatus Joseph P. Tracy 1934-7-18 13423 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UCD59150  Bromus carinatus var. marginatus A. H. Murphy 1951-5-18 s.n. Humboldt 1.5 mi. south of Petrolia on county road. West side of Mattole River near bridge. Comment
  UC185779  Bromus carinatus var. maritimus Joseph P. Tracy 1912-6-9 3658 Humboldt Alton; Northern Coast Ranges, Alton 30 Comment
  UC249501  Bromus carinatus var. maritimus Joseph P. Tracy 1922-5-28 6054 Humboldt Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  HSC9300  Bromus diandrus E. W. Styskel 1964-4-28 75 Humboldt End of Davis St. at the edge of Eel River in Rio Dell Comment
  SEINET200636 Image available Bromus diandrus Joseph P. Tracy 1904-5-1 2042 Humboldt Eureka 0 Comment
  HSC32487  Bromus hordeaceus Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide Comment
  HSC40343  Bromus hordeaceus Linda M. Barker 1976-8-24 1681 Humboldt 3 mi. W of Arcata Comment
  HSC9247  Bromus hordeaceus J. R. Eichelberger 1964-5-13 80 Humboldt 1/4 mi. from U.S. 101 on the N side of the Mad River. Comment
  RSA183636  Bromus marginatus D. E. Anderson 1965-5-8 3652 Humboldt About 3.5 miles north of Willow Creek along road running along east side of Trinity River Comment
  HSC9265  Bromus racemosus E. W. Styskel 1964-5-7 78 Humboldt 2 mi. S of Samoa near Samoa Rd. Comment
  UCD59657  Bromus secalinus var. velutinus G. T. Bateham 1921-8-7 s.n. Humboldt Showers Pass. Comment
  UC1103350  Bromus tectorum Joseph P. Tracy 1933-5-18 12187 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  CAS-BOT-BC185520  Bromus vulgaris A. A. Heller 1923-7-10 13789 Humboldt At a state redwood camp between Scotia and Pepperwood. Comment
  CAS-BOT-BC185524  Bromus vulgaris Joseph Burtt Davy; Walter C. Blasdale 1899-6-10 5406 Humboldt North Coast Ranges. Hubbards Station. Comment
  HSC44189  Bromus vulgaris Thomas W. Nelson, Jane P. Nelson 1977-7-4 3613 Humboldt Along road N from Alder Spring 1555 Comment
  UC1199255  Cacaliopsis nardosmia Joseph P. Tracy 1908-6 2822 Humboldt nw slope of Buck Mountain Buck Mountain 1219 Comment
  HSC95586  Cakile edentula Andrea Pickart 2002-7-8 160 Humboldt N Spit Dunes, Mad River Co. Park, W of parking area 0 Comment
  POM312414  Cakile edentula Malcolm A. Nobs, Walter Wisura 1949-8-11 1337 Humboldt Eastern shore of Stone Lagoon. Comment
  CAS-BOT-BC36855  Cakile edentula var. edentula Alice Eastwood; John Thomas Howell 1934-4-11 1323 Humboldt Trinidad. Comment
  SEINET11092946  Cakile edentula var. edentula Unknown 1940-10-3 16739 Humboldt CALIFORNIA PLANT -- HUMBOLDT COUNTY annual, formign bushy-branched plants 2 ft tall Common on ocean beach, just above high tide. SAND DUNES, NEAR SAMOA, ON HUMBOLDT BAY Altitude 10 feet. Comment
  UC1146622  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1737 Humboldt Rock in Mattole River Comment
  CAS-BOT-BC185235  Calamagrostis koelerioides Joseph P. Tracy 1933-8-30 13008 Humboldt Northern Coast Ranges. Horse Mountain. 1371 Comment
  UC526777  Calamagrostis koelerioides Joseph P. Tracy 1926-6-20 7635 Humboldt Horse Mountain Northern Coast Ranges 1402 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
  CAS-BOT-BC185184  Calamagrostis nutkaensis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  SEINET4565504  Calamagrostis nutkaensis W. Silveus 1938-7-9 2979 Humboldt Dyerville Comment
  UC1198379  Calandrinia ciliata Joseph P. Tracy 1930-6-8 8735 Humboldt Kneeland Prairie 762 Comment
  UC1103693  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1936-8-17 15150 Humboldt 2.5 mi s Field's Landing (near Still Ranch) 6 Comment
  SDSU1330  Callitriche palustris D. F. Howe 1972-6-30 4847 Humboldt Trinidad. Comment
  CHSC110706  Callitriche stagnalis Dean Wm. Taylor 2004-6-24 19136 Humboldt Clear Lake, along Titlow Hill Road. 1493 Comment
  CAS-BOT-BC80381  Calocedrus decurrens Carl D. Duncan 1920-9-27 s.n. Humboldt near Hoopa Comment
  RSA46654  Calocedrus decurrens Doris K. Kildale 1937-9-14 15359 Humboldt Grouse Mountain Comment
  SEINET4152158  Calochortus amabilis Unknown 1914-5-14 4422 Humboldt Fort Seward 122 Comment
  SEINET4169777  Calochortus catalinae Unknown 1932-7-12 Humboldt Trinity Summit Comment
Read comments Sep 18 2015
  HSC15406  Calochortus tolmiei J. P. Tracy, H. E. Parks 1934-6-27 7 Humboldt Grouse Mtn. 1372 Comment
  HSC98542  Calochortus tolmiei Cara Witte 2008-6-9 699 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  UC1197674  Calochortus tolmiei Joseph P. Tracy 1930-7-6 8839 Humboldt Kneeland Prairie 762 Comment
  HSC45281  Calochortus tolmiei Clifton Raymond Chesbrough 1971-7-19 57 Humboldt 1.0 mi. N of Trinidad near ocean Comment
  UC201997  Calochortus vestae Joseph P. Tracy 1918-7-29 4513 Humboldt Eureka Northern Coast Ranges Comment
  UC667122  Calochortus vestae Joseph P. Tracy 1930-6-15 8760 Humboldt Dobbyn Creek 152 Comment
  RSA12547  Caltha howellii Carl B. Wolf 1934-7-2 5891 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  CAS-BOT-BC175759  Caltha leptosepala Joseph P. Tracy 1930-7-16 8971 Humboldt South Fork Mountain; at McKay Camp 1676 Comment
  CAS-BOT-BC273319  Calycadenia fremontii H. M. Hall 1930-10-1 12922 Humboldt Trinity River at Willow Creek Comment
  UC750741  Calycadenia fremontii Henry M. Pollard 1945-8-31 Humboldt Orleans to Somes Bar Comment
  JEPS38589  Calycadenia multiglandulosa W. L. Jepson 1902-7-4 1983 Humboldt Hupa Valley Comment
  HSC16565  Calypso bulbosa Eldrid H. Spinas 1948-6-16 70 Humboldt Horse Mtn. Comment
  HSC45315  Calypso bulbosa R. A. Vanbianchi 1972-4-14 Humboldt Tiptop Ridge, directly E of the town of Fieldbrook Comment
  SEINET3889827  Calypso bulbosa Michael Dalke 1979-1 Humboldt Comment
  HSC102606  Calyptridium monospermum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1593 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC55082  Calyptridium monospermum G. L. Clifton, Griswold 1979-7-31 11746 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC97465  Calyptridium monospermum Cara Witte 2007-5-29 122 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  HSC98759  Calyptridium monospermum Cara Witte 2008-7-2 815 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  JEPS52547  Calyptridium umbellatum P. E. Goddard 1906-6 672 Humboldt Lasseck Peak Comment
  UC562491  Calystegia purpurata Joseph P. Tracy 1927-7-24 8298 Humboldt Upper Mattole 152 Comment
  HSC44614  Calystegia soldanella Laura Witherspoon 1977-5-25 Humboldt Manila Comment
  POM232320  Calystegia soldanella I. L. Wiggins 1930-7-7 4669 Humboldt Sand dunes near Samoa. Comment
  CHSC20349  Calystegia soldanella D. E. Anderson; N. Dennis 1965-6-8 1036 Humboldt Samoa Peninsula along the west side of Humboldt Bay. Sections 3, 4, 9, 10, 15, 16, 17, 20, 21, 28, 29, 31, 32. Comment
  UC198628  Calystegia soldanella Joseph P. Tracy 1917-5-30 4803 Humboldt sand dunes near Little River; Northern Coast Ranges, near Little River 6 Comment
  UC146192  Camassia quamash subsp. quamash J. P. Tracy 1906-4-29 2028 Humboldt s slope of Humboldt Hill near Field's Landing; Humboldt Hill 30 Comment
  HSC16445  Camissonia cheiranthifolia S. J. Hawks 1965-5-14 60 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  HSC33753  Camissonia cheiranthifolia A. Montalvo 1975-5-24 267 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC49511  Camissonia cheiranthifolia R. York 1979-5-18 293 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  NY679575  Camissonia cheiranthifolia subsp. cheiranthifolia C. C. Harris 1939-8-23 970 Humboldt At Samoa. Comment
  UC144059  Camissonia contorta Joseph P. Tracy 1908-6 2687 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CHSC10102  Camissoniopsis cheiranthifolia subsp. cheiranthifolia J. W. Johnson 1961-8-17 1044 Humboldt Arcata. Sand dune fields, Lanphere Farm. Comment
  CHSC55903  Camissoniopsis cheiranthifolia subsp. cheiranthifolia L. P. Janeway 1987-7-31 2541 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  SD38658  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1932-7-27 4153 Humboldt Comment
  POM232035  Campanula prenanthoides I. L. Wiggins 1930-7-22 4690 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  SEINET10463039  Campanula prenanthoides Tracy 1909-8-1 TRACY 3061 Humboldt KNEELAND PRAIRIE, WOODS, GRAVELLY SOIL 762 Comment
  SEINET10463219  Campanula prenanthoides Shields 1955-8-5 SHIELDS s.n. Humboldt 3 MI NW OF WEOTT, MOIST HILLSIDE Comment
  SEINET10873255  Campanula prenanthoides Sutherland 1976-8-13 SUTHERLAND 27 .13.8.76 Humboldt Bank at mouth of Redwood Creek at South Fork Eel River; Garberville quad. T4S R3E Sec. 10 87 Comment
  HSC74731  Campanula scouleri Gail Newton 1981-7-24 2300 Humboldt Near Chaparral Mtn. 1433 Comment
  UC1736612  Campanula scouleri Dean W. Taylor 1991-8-15 12279 Humboldt Snow Camp Lake 1310 Comment
Read comments Apr 8 2012
  HSC98089  Campanula scouleri Cara Witte 2007-7-3 414 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1259 Comment
  SEINET10463645  Campanula scouleri Ira L. Wiggins 1930-7-22 Wiggins 4699 Humboldt ALONG BANK OF REDWOOD CR. BTWN BLUE L. & WILLOW CR. Comment
  SEINET10463703  Campanula scouleri Baker 1947-8-10 Baker 11901 Humboldt 15 mi NE of Hoopa near end of Forest Rd. Fir forest. 1372 Comment
  UC168957  Campanula scouleri Joseph P. Tracy 1908-6 2858 Humboldt opposite Buck Mountain (in woods); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC38209  Cardamine breweri Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  HSC33150  Cardamine californica Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1246 Humboldt Horse Mtn. area, E of microwave tower 1220 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
  CHSC110707  Cardamine californica var. californica Dean Wm. Taylor 2004-6-24 19143 Humboldt Spike Buck Mountain, north slope thereof. 1432 Comment
  UC494001  Cardamine californica var. sinuata Parks and Tracy 916 Humboldt Lower Van Duzen River 60 Comment
  UC1199208  Cardamine oligosperma Joseph P. Tracy 1921-4-24 5439 Humboldt Phillipsville Flat Northern Coast Ranges, South Fork Eel River (South Fork Eel River) 91 Comment
  UCR45400  Cardamine oligosperma Barry Silver 1986-4-23 539 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  UC552295  Cardaria draba Joseph P. Tracy 1933-5-19 12201 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  CAS-BOT-BC384761  Cardionema ramosissimum Milo S. Baker 1927-8-16 2445 b Humboldt Samoa Comment
  HSC4144  Cardionema ramosissimum P. W. Shields Apr 1955 Humboldt 5 mi. NW of Arcata Comment
  RSA32661  Cardionema ramosissimum Doris K. Kildale 1925-7-2 904 Humboldt Table Bluff beach. Comment
  CDA18215  Carduus tenuiflorus G. D. Barbe, T. C. Fuller 1974-6-17 1843 Humboldt North Coast Ranges; Shelter Cove, uphill, E of Sail Court. 91 Comment
  CAS-BOT-BC18516  Carex abrupta Joseph Prince Tracy 1932-7-14 10546 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  HSC97229  Carex abrupta Kiera A. Freeman, Heather J. Perry 2007-6-13 10 Humboldt 1 mi. E of NF1 on FS 5N04 1585 Comment
  HSC95392  Carex arcta Gordon Leppig 2002-7-12 1785 Humboldt PalCo land, .5 mi. W of Fox Creek Rd., W side of large swamp 70 Comment
  HSC95660  Carex arcta Juha Pykala, D. H. Norris 1987-6-5 1436 Humboldt E of Maple Creek, Lake Prairie 1052 Comment
  POM247166  Carex arcta Joseph P. Tracy 1934-7-13 13389 Humboldt Dow s Prairie Comment
  UC1152067  Carex athrostachya Joseph P. Tracy 1950-7-16 18990 Humboldt Burr Valley, lower end Buck Mountain, NW slope 1066 Comment
  SEINET7484301 Image available Carex barbarae Peter F. Zika 2009-1 24503 Humboldt E side of Route 96, near town of Hoopa, W side of Trinity River, Outer North Coast Range (NCoRO) 90 Comment
  CAS-BOT-BC19213  Carex barbarae Joseph Prince Tracy 1929-6-23 8606 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1103620  Carex barbarae Joseph P. Tracy 1935-5-19 13808 Humboldt 2 mi N of Myers (South Fork of Eel River) 91 Comment
  UC562431  Carex bolanderi Joseph P. Tracy 1936-6-9 14912 Humboldt Upper Mattole 457 Comment
  CAS-BOT-BC19438  Carex bolanderi Doris K. Kildale 1927-7-23 3800 Humboldt Hoaglin Lake near Lassicks Peak [Lassics Lookout?]. Comment
  CAS-BOT-BC34975  Carex densa Joseph Prince Tracy 1942-6-15 17135 Humboldt Englewood. Natural prairie, near Redcrest resort. 91 Comment
  CHSC35530  Carex densa Thomas Nelson; Ken Hindley 1978-5-28 4086 Humboldt On Mckeown Ranch north of Dinsmore. 762 Comment
  UC1103113  Carex deweyana subsp. leptopoda Joseph P. Tracy 1937-6-20 15344 Humboldt 10 mi up stream mouth of Bear River; Bear River 152 Comment
  SEINET10823148  Carex echinata Pykala 1987-6-11 PYKALA 1611 Humboldt North Trinity Mountain Wilderness, W of Crogan Hole, Abies concolor-forest, open springy mountainmeadow by a little stream, surrounded by Alnus-thickets. 1554 Comment
  UC194806  Carex echinata Joseph P. Tracy 1914-7-4 4532 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC562271  Carex echinata subsp. echinata Joseph P. Tracy 1932-7-14 10567 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  RSA12426  Carex exsiccata Carl B. Wolf 1934-7-2 5868 Humboldt Small Lake at Snow Camp. (Mountains east of Korbel). 1372 Comment
  CAS-BOT-BC20010  Carex feta L. R. Abrams 1918-6-16 7164 Humboldt Willow Creek. Comment
  UC562648  Carex feta Joseph P. Tracy 1935-5-25 13838 Humboldt Fort Seward 106 Comment
  UC1152072  Carex feta Joseph P. Tracy 1950-7-6 19010 Humboldt 3 mi s Burr Valley (on the Albee Road); Buck Mountain 1158 Comment
  JEPS25967  Carex globosa Joseph P. Tracy 1932-4-23 9832 Humboldt Englewood North Coast Ranges, Englewood 91 Comment
  HSC96578  Carex gynodynama Gordon Leppig, Todd Treadwell 2005-6-8 2249 Humboldt Blue Slide Creek watershed, Pacific Lumber Co. land. 245 Comment
  SEINET7854031 Image available Carex hendersonii V. Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of Eel River Comment
  UC115803  Carex hoodii Joseph P. Tracy 1939-7-9 16343 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC31263  Carex lenticularis var. impressa Joseph Prince Tracy 1932-7-14 10555 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  HSC73725  Carex leporinella M. A. Baker 1980-7-22 3072 Humboldt Near Salmon Mtn. 1820 Comment
  RSA246867  Carex leptalea subsp. leptalea Robert F. Thorne 1965-8-7 35181 Humboldt Big Lagoon, south end. 2 Comment
  SEINET10710158  Carex leptopoda David Castaner 1984-5-28 Castaner 8066 Humboldt Patrick State Park. Redwood Forest area. Comment
  HSC82622  Carex mendocinensis Thomas W. Nelson 1977-6-15 3447 Humboldt Along old road to ski area 1372 Comment
  UC204898  Carex mendocinensis Joseph P. Tracy 1911-7-6 3343 Humboldt Northern Costa Ranges. Mountains slopes along road between Three Creeks and mouth of Willow Creek. Comment
  CAS-BOT-BC31822  Carex mendocinensis Joseph Prince Tracy 1935-7-14 14086 Humboldt Along streamlet Grouse Mountain. 1524 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
  HSC102622  Carex microptera M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1609 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC32131  Carex multicaulis Joseph Prince Tracy 1927-3-27 7862 Humboldt Trinity River Valley, near the South Fork. 182 Comment
  UC1152054  Carex multicaulis Joseph P. Tracy 1949-8-11 18465 Humboldt e of headwaters Redwood Creek (beginning where the electric power line crosses, going southward); Kinsey Ridge 1280 Comment
  HSC102227  Carex multicostata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1148 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  HSC75764  Carex multicostata Teresa Prendusi 1981-7-21 289 Humboldt Near Whiteys Peak 1646 Comment
  UC1103086  Carex multicostata Joseph P. Tracy 1930-7-23 9127 Humboldt Cold Springs Northern Coast Ranges, Horse Mountain 1432 Comment
  UC1103090  Carex multicostata Joseph P. Tracy 1935-5-25 13828 Humboldt along head Larrabee Creek; Blocksburg 518 Comment
  UCD140669  Carex multicostata Don Hagar 1957-8-27 s.n. Humboldt Red Cap Prairie, Trinity Summit area, around 15 miles east of Hoopa. Comment
  HSC45021  Carex nudata R. Sutherland 1978-5-16 116578 Humboldt Redwood Creek 143 Comment
  CAS-BOT-BC119386  Carex obnupta Doris Kildale Gillespie 1931-6-7 10650 Humboldt South Fork Mt. Blake Lookout. 1726 Comment
  CHSC2106  Carex obnupta M. Anthony 1937-5-15 Humboldt Humboldt State College. Comment
  CHSC42989  Carex obnupta L. P. Janeway 1987-7-31 2548 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  HSC7069  Carex obnupta S. J. Hawks, D. E. Anderson 1965-5-18 14 Humboldt 1/4 mi. W of Fairhaven Comment
  CAS-BOT-BC119385  Carex obnupta W. R. Dudley 1899-6-1 s.n. Humboldt Peninsula opposite Eureka. Comment
  HSC7061  Carex obnupta J. W. Johnson 1962-4-28 1306 Humboldt Arcata, Hollow 10, W.M. Lamphere Farm, Samoa Peninsula Comment
  HSC7063  Carex obnupta J. W. Johnson 1962-4-11 1242 Humboldt Arcata, Dune 3 North, Christenson Farm, Samoa Peninsula Comment
  HSC7066  Carex obnupta Paul Shields Apr 1955 Humboldt 5 mi. N of Arcata Comment
  SEINET10883539  Carex ormantha Joseph P. Tracy 1932-7-14 Tracy 10567 Humboldt Corral Prairie in wet meadow. 1585 Comment
  CAS-BOT-BC119245  Carex pachystachya Joseph Prince Tracy 1939-7-9 16340 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC119239  Carex pachystachya Joseph Prince Tracy 1939-7-9 16324 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  UC194803  Carex pansa Joseph P. Tracy 1911-6-25 3258 Humboldt Eureka Northern Coast Region 0 Comment
  POM301293  Carex rossii Joseph P. Tracy 1949-5-8 18296 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 61 Comment
  HSC98943  Carex serratodens Cara Witte 2007-6-4 196 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  CAS-BOT-BC116904  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-23 4808 Humboldt Little Van Duzen River Comment
  HSC102234  Carex subfusca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1156 Humboldt Patterson Meadows 1555 Comment
  UC562246  Carex tumulicola Joseph P. Tracy 1932-5-1 9853 Humboldt vicinity Garberville; Redway 121 Comment
  HSC49014  Carex tumulicola M. A. Baker 1979-5-25 756 Humboldt Comment
  UC585635  Carex unilateralis Joseph P. Tracy 1937-8-7 15618 Humboldt Bald Mountain, Murphy Ridge 914 Comment
  HSC26451  Carpobrotus chilensis T. O. Osborne 1970-5-17 22 Humboldt Sugarloaf Rock, Cape Mendocino. 61 Comment
  JEPS66408  Castilleja affinis subsp. litoralis L. R. Heckard with T. I. Chuang 1971-7-1 2668 Humboldt ca 4 mi n bridge across Big Lagoon (along U.S. Highway 101, n of Big Lagoon) 60 Comment
  JEPS8504  Castilleja affinis subsp. litoralis Joseph P. Tracy 1926-6-18 7606 Humboldt e of Fields Landing; Humboldt Hill 152 Comment
  HSC55752  Castilleja applegatei G. L. Clifton, Griswold 1979-7-26 10284 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC30743  Castilleja applegatei subsp. pinetorum D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5648 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  JEPS8625  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1935-7-24 14203 Humboldt near Trinity Summit Ranger Station; Trinity Summit 1828 Comment
  UC199382  Castilleja applegatei subsp. pinetorum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC99531  Castilleja arachnoidea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 195 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  UC673100  Castilleja exserta subsp. latifolia Joseph P. Tracy with Dr. F. W. Pennell 1940-7-6 16659 Humboldt w foot Table Bluff 6 Comment
  CAS-BOT-BC244879  Castilleja miniata Mrs. H. C. Cantelow 1935-5-31 836 Humboldt 15 mi. N. of Orick Comment
  UC1374940  Castilleja miniata Noel H. Holmgren and Liew Fah Seong 1969-6-24 3612 Humboldt n of Fortuna (along road) Comment
  HSC41587  Castilleja pruinosa Thomas W. Nelson, Jane P. Nelson 1977-7-30 3656 Humboldt Along S side of ridge between the forks of Black Lassic Creek 1646 Comment
  JEPS10638  Castilleja rubicundula subsp. lithospermoides W. L. Jepson 1934-5-8 16719 Humboldt n of Redway; South Fork Eel River Comment
  RSA517384  Castilleja wightii R. C. Bacigalupi, L. R. Heckard 1964-7-27 8962 Humboldt Shaded bend of road just (1/8 mile) above and east of Shelter Cove. On partly shaded N-facing road bank. Comment
  CAS-BOT-BC47997  Ceanothus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1502102  Ceanothus R. Sutherland 1975-7-4 3 .4.7 75 Humboldt se corner of S 11 Pt. Delgada Quad. 548 Comment
  UC1502112  Ceanothus R. Sutherland 1976-1-30 4 .30.76 Humboldt Pt. Delgada Quad. 990 Comment
  UC1502126  Ceanothus R. Sutherland 1975-7-1 3 .1.7 75 Humboldt along Baker Creek; Garberville Quad., along Baker Creek 335 Comment
  UC33617  Ceanothus cuneatus var. cuneatus Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  POM282970  Ceanothus incanus Lyman Benson 1929-7-11 1785 Humboldt S of Garberville Comment
  UC1070754  Ceanothus incanus A. E. Wieslander 1931-5-22 219 Humboldt Wilder Ridge Comment
  UC198614  Ceanothus incanus Joseph P. Tracy 1916-6-21 4706 Humboldt Burr Creek Northern Coast Ranges 914 Comment
  CAS-BOT-BC63679  Ceanothus integerrimus L. B. Kildale 1927-7-3 3635 Humboldt Willow Creek Flat. 152 Comment
  HSC18298  Ceanothus integerrimus Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  OBI10458  Ceanothus integerrimus Carl B. Wolf 1937-8-13 9235 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New road towards Trinity summit 1219 Comment
  RSA46885  Ceanothus integerrimus var. californicus Doris K. Kildale 1926-4-25 1813 Humboldt Hoopa Mt. Comment
  RSA95358  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek. 152 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
  UC1004332  Ceanothus parryi W. L. Colwell 1954-11-20 22 Humboldt along Eel River 3 mi e South Fork; Quad. 29B4, Eel River e of South Fork 91 Comment
  HSC76579  Ceanothus thyrsiflorus John Demarinis 1981-7-21 873 Humboldt Near Table Bluff 38 Comment
  UC1193283  Ceanothus thyrsiflorus R. H. Neuns 1950-10-23 143 Humboldt on Shelter Cove Road 3 mi e Shelter Cove; Quad. 28D4, e of Shelter Cove 487 Comment
  OBI44963  Ceanothus thyrsiflorus var. thyrsiflorus Midred J. Cady 1938-7-14 s.n. Humboldt Near Trinidad Comment
  SBBG116556  Ceanothus thyrsiflorus var. thyrsiflorus D. H. Wilken 2003-7-22 16177 Humboldt ca. 0.9 linear km SW of Capetown and Bear River 150 Comment
  SBBG71387  Ceanothus thyrsiflorus var. thyrsiflorus R. Hartwell 1938-8-6 Humboldt above Arcata, near coast Comment
  SDSU10422  Ceanothus velutinus D. F. Howe 1961-8-2 3122 Humboldt 27.0 m iles east of Orick of Bald Mtn. Road. 762 Comment
  UC1119132  Centaurea melitensis H. L. Person 1932-7-23 Humboldt road e of Korbel; Eureka Quadrangle Comment
  CDA7303  Centaurea nigra Tario 1933-11-15 Humboldt Near Eureka. 0 Comment
  CDA7306  Centaurea nigra K. E. Frick 1961-8-16 Humboldt Eureka. Near fairgrounds. 0 Comment
  CDA7309  Centaurea pratensis E. C. Whitney 1968-9-6 Humboldt Holmes Flat. Rutledge property. 0 Comment
  UC1199119  Centaurea solstitialis Joseph P. Tracy 1931-10-18 9735 Humboldt 2 to 5 mi e of South Fork (Camp Grant, along Eel River); Eel River 45 Comment
  POM92415  Centaurium muehlenbergii L. R. Abrams 1922-6-25 8228 Humboldt 6 miles N of Garberville, along Eel River. Comment
  SDSU7104  Centaurium tenuiflorum D. F. Howe 1963-7-8 3622 Humboldt 8.2 miles west of Bridgeville on Cal 36, Van Duzen River. 91 Comment
  CAS-BOT-BC279138  Centromadia pungens subsp. pungens Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC1198613  Centunculus minimus J. P. Tracy 1905-5-21 2182 Humboldt immediate vicinity of Eureka 0 Comment
  HSC48979  Cephalanthera austiniae Rudolf W. Becking 1979-7-15 Humboldt Fish Lake Comment
  HSC74322  Cephalanthera austiniae Gail Newton 1980-7-20 1627 Humboldt Near Bell Swamps 1426 Comment
  RSA46684  Cephalanthera austiniae Doris K. Kildale 1937-7-18 15139 Humboldt Horse Mt. Comment
  UC162888  Cerastium arvense Harley P. Chandler June, 1901 1384 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC1198313  Cerastium arvense Joseph P. Tracy 1900-6-5 845 Humboldt bluffs back of Bucksport (at Eureka); Northern Coast Region, Eureka 0 Comment
  UC1198320  Cerastium glomeratum Joseph P. Tracy 1911-7-5 3308 Humboldt near mouth Willow Creek; Northern Coast Ranges, Willow Creek (tributary of Trinity R. 182 Comment
  UC161008  Cerastium glomeratum Joseph P. Tracy 1900-5-24 803 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  RSA46727  Cercis occidentalis Doris K. Kildale 1938-1 15367 Humboldt Hoopa trip. Comment
  UC1199059  Cercis occidentalis Joseph P. Tracy 1939-4-29 16249 Humboldt Slate Creek Klamath River (mouth) 121 Comment
  HSC31980  Chamaecyparis lawsoniana Steve Selva, Roger Jensen 1974-8-19 25 Humboldt Horse Mtn. Ski Area Comment
  HSC8035  Chamaesyce maculata D. E. Anderson 1963-9-21 2840 Humboldt 0.5 mi E of Willow Creek Comment
  HSC99569  Chamaesyce serpillifolia subsp. serpillifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 234 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
  HSC44520  Chamerion angustifolium subsp. circumvagum Brad Klipfel 1973-7-1 127 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS39308  Chamerion angustifolium subsp. circumvagum W. L. Jepson 1927-7-3 12360 Humboldt Weott South Fork Eel River Comment
  HSC38999  Cheilanthes gracillima Thomas W. Nelson, Jane Nelson 1976-5-31 2660 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  HSC98979  Cheilanthes gracillima Cara Witte 2008-5-26 656 Humboldt 3/4 mile south of Titlow Hill. 1422 Comment
  SEINET4558631  Chenopodium atrovirens Joseph P. Tracy 1932-1 10500 Humboldt Local along trail 1585 Comment
  UCR123948  Chenopodium botrys George K. Helmkamp, E. A. Helmkamp 2001-7-8 6989 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  UC1225781  Chenopodium murale Joseph P. Tracy 1948-1-11 17949 Humboldt Eureka 30 Comment
  HSC73779  Chimaphila menziesii M. A. Baker 1980-6-7 1772 Humboldt Near Brush Mtn. 1128 Comment
  BLMAR529  Chimaphila umbellata Jennifer Wheeler 2009-6-23 529 Humboldt King range, On King Peak road Comment
  CAS-BOT-BC451498  Chimaphila umbellata L. B. Kildale 1930-9-9 10403 Humboldt Bald Mountain 914 Comment
  HSC41343  Chimaphila umbellata Brad Klipfel 1974-8-2 503 Humboldt Horse Mtn. Comment
  CAS-BOT-BC452226  Chimaphila umbellata Doris K. Kildale 1925-8-16 1163 Humboldt Trinity Summit Trail between forks of Tish-tang-i-tank Creek & Elk Horn Prairie 1524 Comment
  UC1073189  Chlorogalum pomeridianum var. pomeridianum George B. Rossbach 1955-6-10 613 Humboldt route 101 two mi n Stephens Redwood Grove; south branch of Eel River Comment
  CDA7414  Chrysanthemum segetum M. R. Pryor 1948-7-19 Humboldt Henry Perrott Ranch, Loleta. 0 Comment
  RSA246786  Chrysanthemum segetum R. F. Thorne 1965-8-8 35270 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  CAS-BOT-BC36481  Chrysolepis chrysophylla Doris K. Kildale 1926-9-5 2628 Humboldt Top of ridge at Goat Camp, Lassecks Peaks 1661 Comment
  UC519307  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1933-8-6 12933 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  UC1222286  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1950-7-31 19239 Humboldt Grouse Mountain; top of mountain 1524 Comment
  UC1198647  Cicendia quadrangularis Joseph P. Tracy 1930-5-18 8696 Humboldt Rohnerville Golf Course 152 Comment
  UCD127288  Cicuta douglasii R. Tofsrud; J. M. Tucker 1948-9-4 1860 Humboldt near mouth of Salmon Creek, east side of Highway 101, around 8 miles south of Eureka. Comment
  CAS-BOT-BC284404  Cirsium arvense L. R. Abrams 1927-8-31 12059 Humboldt Arcata Comment
  UCD130610  Cirsium douglasii Gordon Leppig 1998-6-1 879 Humboldt Horse Mountain, Titlow Hill Rd. 1219 Comment
  UC249821  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 B Humboldt near Ruby Creek (on the Willow Creek Highway); Northern Coast Ranges 609 Comment
  UC912553  Cirsium douglasii var. douglasii Herbert L. Mason 1932-7-21 7107 Humboldt on road from Arcata to Weaverville (e slope of South Fork Mountains); North Coast Ranges Comment
  UC668208  Cirsium occidentale var. candidissimum Joseph P. Tracy 1938-7-4 15990 Humboldt Valley of South Yaeger Creek 762 Comment
  JEPS23479  Clarkia amoena subsp. amoena Joseph P. Tracy 1938-6-17 15957 Humboldt s of point Cape Mendocino (near ocean shore) 3 Comment
  CAS-BOT-BC160949  Clarkia amoena subsp. amoena C. L. Hitchcock; J. S. Martin 1939-7-14 5432 Humboldt Road bank 1 mile east of Shelter Cove Comment
  UC20318  Clarkia amoena subsp. whitneyi H. N. Bolander 1866-1 6534 Humboldt Shelter Cove; ; Shelter Cove, Humboldt Co. Comment
  UC183683  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1913-6-20 4244 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC172388  Clarkia purpurea subsp. viminea Richard Spellenberg 1965-6-13 1109 Humboldt Along road on E side of Trinity River, about 3/4 mile S. of hwy. through Hoopa Indian Reservation Comment
  UC1071916  Clarkia purpurea subsp. viminea H. and M. Lewis 1947-6-14 417 Humboldt 1.2 mi e Van Duzen Public Camp Ground (Highway 36) Comment
  CAS-BOT-BC164723  Clarkia rhomboidea Harley P. Chandler 1901-6-1 1339 Humboldt Hupa Indian Reservation 152 Comment
  SEINET200317 Image available Claytonia lanceolata Joseph P. Tracy 1932-7-15 10594 Humboldt Trinity Summit. Ridges east of Corral Prairie 1830 Comment
Read comments Nov 24 2014
  HSC36878  Claytonia rubra subsp. rubra J. P. Smith, J. O. Sawyer, J. Cole 1976-4-18 8614 Humboldt Bald Hills Rd., 17 mi. E of its jct. with Hwy. 101 854 Comment
  HSC70226  Claytonia rubra subsp. rubra M. A. Baker 1980-6-8 1888 Humboldt Near Buck Flat. 1554 Comment
  HSC67375  Claytonia saxosa Thomas W. Nelson, James Nelson 1980-6-10 5415 Humboldt Along Swayback Ridge Rd., 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  HSC17754  Claytonia saxosa D. E. Anderson 1967-6-10 4366 Humboldt W-facing slope on Horse Mtn. 1220 Comment
  HSC17726  Claytonia sibirica D. E. Anderson 1961-10-1 1855 Humboldt E side of Freshwater Lagoon Comment
  HSC53904  Claytonia sibirica Griswold, Butler 1979-7-11 6905 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC64323  Claytonia sibirica J. P. Smith, J. O. Sawyer 1973-5-12 6686 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  RSA246824  Claytonia sibirica R. F. Thorne, Percy C. Everett 1965-8-5 35130 Humboldt Wailaki Recreation site. 518 Comment
  UC162972  Claytonia sibirica Joseph P. Tracy 1908-6 2860 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC17723  Claytonia sibirica D. E. Anderson 1962-3-31 1956 Humboldt Coastal area of Prairie Creek State Park Comment
  JEPS43340  Claytonia sibirica W. L. Jepson 1932-7-26 16416 Humboldt lower Bull Creek Flat 106 Comment
  RSA117678  Claytonia sibirica S. S. Tillett 1956-7-7 628 Humboldt Upper end of Pearch Creek Campground, Six Rivers National Forest Orelans. Comment
  SD90249  Claytonia sibirica Benjamin C. Stone 1952-6-19 112 Humboldt Humboldt Redwoods State Park; by Founders' Tree 152 Comment
  HSC17717  Claytonia washingtoniana R. E. Hafenfeld 1965-4-29 38 Humboldt 1/4 mi. N Squashan Creek near Gold Bluff Beach Rd. Comment
  UC1134574  Clintonia andrewsiana A. E. Wieslander 1931-5-17 194 Humboldt Orick-Orleans Road Comment
  UC1103459  Clintonia uniflora Joseph P. Tracy 1936-6-28 15018 1/2 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1219 Comment
  HSC101087  Coincya monensis Andrea Pickart 2009-2-20 729 Humboldt Manila Dunes; End of Lupine Ave., Manila 15 Comment
  HSC74444  Collinsia grandiflora M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  HSC75449  Collinsia grandiflora J. O. Sawyer 1980-7-18 3583 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC147865  Collinsia grandiflora Joseph P. Tracy 1908-6 2709 Humboldt opposite Buck Mtn Valley of Van Duzen River; North Coast Ranges, Valley of Van Duzen River 762 Comment
  UC582453  Collinsia linearis Joseph P. Tracy 1933-7-25 12836 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC1196756  Collinsia linearis Joseph P. Tracy 1930-7-23 9140 Humboldt lower slopes of Horse Mountain Horse Mountain 1066 Comment
  HSC100659  Collinsia parviflora Carl C. Marshall 21 Humboldt Kneeland Prairie. Comment
  HSC48759  Collinsia parviflora Brad Klipfel 1973-6-10 73 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC604633  Collinsia parviflora Joseph P. Tracy 1938-6-13 15922 Humboldt Grouse Mountain, at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  HSC40672  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-7-1 2929 Humboldt Along beanch to W of Mt. Lassic (Signal Peak) 1677 Comment
  UC1196761  Collinsia parviflora Joseph P. Tracy 1913-6-14 4122 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS117  Collinsia rattanii Volney Rattan Jun 1884 Humboldt Black Butte; Coast Mtns Comment
  HSC97946  Collomia grandiflora Cara Witte 2007-6-27 368 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  HSC16927  Collomia heterophylla D. E. Anderson 1965-5-8 3639 Humboldt About 2 mi. N of Willow Creek on the road running along E side of Trinity River Comment
  RSA183510  Collomia heterophylla D. E. Anderson 1965-5-8 3639 Humboldt About 2 miles north of Willow Creek on road running along east side of Trinity River. Comment
  HSC44406  Collomia heterophylla R. York 1978-5-6 158 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  UC717114  Collomia heterophylla S. K. Harris 1942-6-12 1386 Humboldt Fickle Hill Road to Boynton Prairie (roadside banks; Sn 2 e) 600 Comment
  UC908768  Collomia heterophylla P. B. Kennedy 1929-6-14 Humboldt California Barrel Company Range Arcata Comment
  HSC40675  Collomia tinctoria Thomas W. Nelson, Jane P. Nelson 1976-7-1 2924 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC16936  Collomia tracyi J. P. Tracy 1927-6-12 8161 Humboldt Horse Mtn. 1067 Comment
  HSC99064  Collomia tracyi Cara Witte 2007-7-20 569 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1522 Comment
  UC1197860  Collomia tracyi Joseph P. Tracy 1926-6-20 7634 Humboldt Horse Mountain 1432 Comment
  HSC96489  Comarum palustre Gordon Leppig 1997-8-3 634 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  HSC73022  Corallorhiza maculata Gail Newton 1980-8-10 2028 Humboldt Near Blake Mtn. 1798 Comment
  UC1196462  Corallorhiza striata Joseph P. Tracy 1918-5-28 4935 Humboldt on slope below High Prairie (near Redwood Creek); Northern Coast Ranges 609 Comment
  JEPS32995  Cordylanthus tenuis subsp. viscidus Freed W. Hoffman 1949-7-14 3063 Humboldt Pine Point Ridge sw Mt. Lassic Lookout; North Coast Ranges Comment
  CAS-BOT-BC212017  Cornus nuttallii Doris K. Kildale 1925-4-1 s.n. Humboldt Hungry Hollow near Korbell Comment
  OBI15277  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity river valley, at Willow crk Comment
  RSA167408  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity River Valley, at Willow Creek. Comment
  CAS-BOT-BC210535  Cornus sessilis Doris K. Kildale 1926-8-15 2507 Humboldt Willow Creek, near its junction with the Trinity River 152 Comment
  CAS-BOT-BC210536  Cornus sessilis Doris K. Kildale 1928-7-1 9435 Humboldt Klamath River at Bluff Creek Comment
  UC249592  Cornus sessilis Joseph P. Tracy 1921-8-21 5941 Humboldt Trinity R. at mouth of S. Fork <Trinity R.>; Northern Coast Ranges, Trinity R. 152 Comment
  HSC93467  Cortaderia jubata Gordon Leppig 1998-10-26 1107 Humboldt Arcata, Bayside Rd. at Crescent Way 6 Comment
  UC1011081  Corylus californica Emanuel Fritz 1941-10-4 8610 Humboldt Van Duzen River 91 Comment
  UC1222290  Corylus californica Joseph P. Tracy 1950-7-31 19226 Humboldt about 1 mi N of Friday's Camp (where road crosses side of Friday Ridge) Comment
  UC667998  Corylus californica Joseph P. Tracy 1935-7-31 14393 Humboldt Devil's Backbone (Barren rocky ridge connecting Trinity Summit with Salmon Summit 1524 Comment
  CAS-BOT-BC180304  Corylus cornuta subsp. californica P. C. Everett; E. K. Balls 1959-10-24 23956 Humboldt 4.7 mi S from Bluff Creek, Hwy. 96 from Orleans to Weitchpec 121 Comment
  LA204121  Corylus cornuta subsp. californica Carl Epling; William Robison 1935-7-25 sn Humboldt Devoy Grove of Redwoods Comment
  UC1409109  Cotula coronopifolia Robert F. Thorne and P. Everett 1965-8-8 35272 Humboldt n edge Eureka (e of Hwy 101) 4 Comment
  UC485352  Cotula coronopifolia Joseph P. Tracy 1912-7-21 3775 Humboldt Alton; Northern Coast Region 30 Comment
  UC492243  Crassula connata var. subsimplex Joseph P. Tracy 1931-3-26 9293 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R., Alton 30 Comment
  RSA89624  Crataegus monogyna E. K. Balls, Percy C. Everett 1953-10-13 18652 Humboldt 1 mile N of Arcata along Hwy 101. 6 Comment
  JEPS89545  Crepis capillaris Dean W. Taylor 1991-9-15 12288 Humboldt along Hwy. 101 near mouth of Tom Creek (Big Lagoon); N. Coast Ranges, Big Lagoon 3 Comment
  UC581732  Crepis pleurocarpa Joseph P. Tracy 1935-7-28 14332 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  HSC8629  Croton setiger D. E. Anderson 1961-9-30 1839 Humboldt Along Hwy. 299 Comment
  HSC41196  Cryptantha affinis Thomas W. Nelson 1977-7-4 3611 Humboldt Along road N of Alder Springs. 1524 Comment
  HSC58140  Cryptantha affinis Gilbert Muth 1979-8-1 12159 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1239666  Cryptantha affinis Harold E. Parks and Joseph P. Tracy 1934-6-27 11059 Humboldt Grouse Mt. 1432 Comment
  UC525589  Cryptantha flaccida Joseph P. Tracy 1930-6-15 8750 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UC1239651  Cryptantha torreyana Joseph P. Tracy 1926-7-5 7732 Humboldt Valley of South Yager Creek 762 Comment
  UC79506  Cryptantha torreyana J. W. Blankinship 1893-6-29 Humboldt Eel River Comment
  HSC74455  Cryptogramma acrostichoides Gail Newton 1980-8-10 2005 Humboldt Near Blake Mtn. 1798 Comment
  POM182351  Cryptogramma acrostichoides Joseph P. Tracy 1919-9-23 5290 Humboldt Trinity Summit 1829 Comment
  CHSC31295  Cuscuta salina var. major Mark Stopher 1980-7-11 117 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC74370  Cynoglossum occidentale M. A. Baker 1980-5-18 1289 Humboldt Near Black Mtn. 1006 Comment
  CHSC83244  Cynosurus cristatus Ray Evens 1956-7-19 Humboldt 4.5 miles northwest of Petrolia. Comment
  UC1103239  Cynosurus cristatus Joseph P. Tracy 1941-7-26 16969 Humboldt Eureka 30 Comment
  UCD60127  Cynosurus cristatus Ray Evans 1956-7-19 s. n. Humboldt 4.5 miles northwest of Petrolia. Comment
  HSC45955  Cyperus eragrostis J. P. Smith, Steve Selva 1970-6-14 3823 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC96372  Cyperus parishii Gordon Leppig 2004-9-6 2197 Humboldt E bank of Trinity River, across river from the Loncar Summer Estate, 3.5 km N of Willow Creek 120 Comment
  POM160839  Cyperus squarrosus Joseph P. Tracy 1920-8-15 5362 Humboldt Klamath River at Bluff Creek. 152 Comment
  HSC97971  Cypripedium californicum Cara Witte 2007-6-21 316 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near mine area. 1283 Comment
  HSC32333  Cystopteris fragilis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5635 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  HSC14669  Cytisus scoparius Francis Winter 1960-4-23 Humboldt 1.0 mi W of Angel Ranch on Korbel-Maple Creek Rd. 381 Comment
  HSC54606  Dactylis glomerata Overton, Butler 1979-7-24 9690 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC70783  Dactylis glomerata Gail Newton 1980-7-23 1749 Humboldt Near Packsaddle Ridge 1463 Comment
  RSA728077  Dactylis glomerata Gary D. Wallace 1979-6-24 1859 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek; near Honker Timber scale (?), near lookout. 1216 Comment
  UC526850  Danthonia californica Joseph P. Tracy 1934-7-12 13377 Humboldt Big Lagoon 3 Comment
  UC187246  Danthonia californica var. americana Joseph P. Tracy 1906-6-24 2510 Humboldt Humboldt Hill Northern Coast Region, region about Humboldt Bay (s slope) 0 Comment
  UCD60514  Danthonia californica var. americana R. Tofsrud 1947-6-27 s.n. Humboldt About halfway between Yager and Kneeland on county road. Comment
  UCD60528  Danthonia californica var. americana R. Tofsrud 1948-7-28 s.n. Humboldt Scotia, south edge of town. 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-BC420356  Darmera peltata L. B. Kildale 1930-9-9 10409 Humboldt Redwood Creek at Berry's 289 Comment
  JEPS12211  Datura stramonium W. L. Jepson 1932-7-28 16436 Humboldt Dyerville 88 Comment
  UC420522  Daucus pusillus Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5417 Humboldt near Hubbards Comment
  UC1223154  Delairea odorata Joseph P. Tracy 1942-1-25 17054 Humboldt near Ferndale; along Russ Creek Comment
  UC467718  Delphinium decorum subsp. tracyi Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5802 B Humboldt Trinity Summit Comment
  HSC44634  Delphinium decorum subsp. tracyi Diane L. Reed 1978-5-27 125 Humboldt 2.9 mi. from Hwy. 299 on Titlow Hill Rd., Horse Mtn. Comment
  UC160954  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1909-7-31 3041 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC24973  Delphinium menziesii Francis Winter 1960-5-6 Humboldt Little River State Park, N of Arcata Comment
  CAS-BOT-BC9956  Delphinium nudicaule Joseph Prince Tracy 1927-5-30 8084 Humboldt Near Briceland 243 Comment
  HSC48946  Delphinium nudicaule M. A. Baker 1979-5-1 700 Humboldt Along old bed of Bluff Creek Comment
  RSA259574  Delphinium trolliifolium Thomas W. Nelson, James Nelson 1973-5-28 942 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1196334  Delphinium trolliifolium Joseph P. Tracy 1947-4-27 17675 Humboldt Table Bluff 60 Comment
  UC160942  Delphinium trolliifolium Joseph P. Tracy Jul 27 1908-Jul 30 1908 2712 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC37429  Delphinium trolliifolium B. R. Templeton 1962-5-24 Humboldt W slope of Berry Summit Comment
  POM299320  Delphinium trolliifolium Lester Rowntree 1938-6-4 s.n. Humboldt Stone Lagoon near Orick Comment
  SEINET12099650  Delphinium trolliifolium J. P. Tracy 1951-1 19559 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  UC13904  Delphinium trolliifolium W. C. Blasdale 1896-6-7 Humboldt Graham's Ranch Comment
  HSC93674  Deschampsia cespitosa Peter Haggard 1996-7-8 Humboldt Eureka, North Coast Railroad right-of-way. Comment
  CAS-BOT-BC194297  Deschampsia cespitosa subsp. cespitosa Malcom A. Nobs; S. Galen Smith 1949-8-3 1167 Humboldt Borders of irrigation ditch, 1 mile south of Fields Landing, Eel River Valley Comment
  HSC98118  Deschampsia danthonioides Cara Witte 2007-6-21 328 Humboldt Along National Forest 1. 3/4 mile north of Brays Opening. Near Board Camp area. 1365 Comment
  UC187271  Deschampsia danthonioides J. P. Tracy 1903-5-24 1911 Humboldt Alder Point on Eel. R. Alder Point; Eel. R., Alder Point 152 Comment
  BLMAR267  Deschampsia elongata Jennifer Anthony-Wheeler 1999-6-16 267 Humboldt Headwaters Forest Reserve, growing near beginning of wildlife rd 524 Comment
  POM207195  Deschampsia elongata Jos Burtt Davy, W. C. Blasdale 1899-08 5516 B Humboldt Near Pepperwood Comment
  UC526673  Deschampsia elongata Joseph P. Tracy 1932-7-14 10552 Humboldt Corral Prairie, Trinity Summit, Klamath Mts. Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  CAS-BOT-BC402412  Dicentra formosa subsp. formosa S. Morrissette; J. Williams; K. Kopper 1994-5-6 040 Humboldt Intersection of Hwy 299 & Redwood Valley Rd. 609 Comment
  CAS-BOT-BC402413  Dicentra formosa subsp. formosa J. Cromwell; A. Thoele; J. Schneider 1994-5-6 046 Humboldt Intersection of Hwy. 299 and Redwood Valley Rd. 609 Comment
  CAS-BOT-BC402539  Dicentra pauciflora Joseph P. Tracy 1933-7-11 12691 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  SEINET3071630 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1900-8-26 925 Humboldt Eureka Comment
  RSA92450  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1198182  Dichelostemma X venustum Joseph P. Tracy 1927-5-21 8066 Humboldt s end Humboldt Bay; Salmon Creek Valley 15 Comment
  UC275547  Dichelostemma X venustum Joseph P. Tracy 1923-7-4 6524 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  HSC86307  Dichelostemma capitatum subsp. capitatum K. Berg, B. Bonning 1983-5-21 493 Humboldt 0.5 mi. up Titlow Hill Rd. from Berry Summit 854 Comment
  HSC95583  Dichelostemma capitatum subsp. capitatum Andrea Pickart 2002-5-13 99 Humboldt Lamphere Dunes, Humboldt National Wildlife Refuge Comment
  RSA167425  Dichelostemma capitatum subsp. capitatum Joseph P. Tracy 1951-5-20 19404 Humboldt Near the rockpile toward Ashfield Buttem Kneeland Prairie. Comment
  UC1950449  Dichelostemma congestum Barbara Ertter with Thomas J. Delendick 1987-5-16 6919 Humboldt Vista Point just W of Berry Summit on Hwy 299, open grassy S-facing slope Comment
  HSC73662  Dichelostemma ida-maia M. A. Baker 1980-7-15 2975 Humboldt Near Whiting Ridge. 1341 Comment
  JEPS5682  Dichelostemma ida-maia W. L. Jepson 1902-6 2132 Humboldt Three Creeks to Redwood Creek (near summit of grade) Comment
  SEINET12053111  Dichelostemma ida-maia L. K. Henry 1971-1 s.n. Humboldt along Rt.36, 2 mi E of Dinsmore, in Six Rivers National Forest Comment
  UC1198179  Dichelostemma ida-maia Frank A. Graham 1935-7-27 Humboldt lower end Crogan Hole; Trinity Summit 1463 Comment
  CAS-BOT-BC150349  Diplacus aurantiacus L. R. Abrams 1916-7-18 6141 Humboldt At Trinidad Comment
  CAS-BOT-BC153323  Diplacus layneae Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 1371 Comment
  RSA1088  Disporum smithii E. R. Johnson 1928-8-26 1148 Humboldt Arcata. Comment
  RSA10939  Disporum smithii Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of the Eel River Comment
  HSC93509  Distichlis spicata Gordon Leppig, Sylvia Leppig 1998-9-17 1101 Humboldt Arcata Marsh and Wildlife Sanctuary, W of railroad trestle. Comment
  UC38073  Distichlis spicata Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5604 Humboldt Arcata Comment
  UC1198620  Dodecatheon hendersonii Joseph P. Tracy 1922-5-14 6046 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  POM47623  Downingia yina J. B. Feudge 1923-7-29 108 Humboldt Rohnerville. 15 Comment
  JEPS53536  Draba verna Joseph P. Tracy 1922-4-2 5986 Humboldt near Carlotta (Van Duzen River bar); Northern Coast Ranges, , nr Carlotta 30 Comment
  HSC36312  Drosera rotundifolia James Beaver 1973-5-20 Humboldt Big Lagoon Comment
  RSA0011668  Drosera rotundifolia C. B. Wolf 1934-7-2 5897 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  RSA0011676  Drosera rotundifolia C. B. Wolf 1937-8-10 2901 Humboldt Big Lagoon, bog at state park. 6 Comment
  RSA0011677  Drosera rotundifolia C. B. Wolf 1927-8-22 778 Humboldt Big Lagoon. Comment
  SEINET3164219  Drosera rotundifolia N. Dennis 1965-6-30 140 Humboldt Sphagnum bog at Big Lagoon County Park, southwest corner of Big Lagoon Comment
  UC12540  Drymocallis glandulosa var. wrangelliana C. C. Marshall 1888-1 Humboldt Comment
  UC1198682  Drymocallis lactea var. austiniae Joseph P. Tracy 1913-6-17 4192 Humboldt near summit (Buck Mountain); Northern Coast Ranges, Buck Mountain 1524 Comment
  UC62809  Dryopteris expansa Marshall A. Howe 1896-5-30 Humboldt Eureka Comment
  HSC4370  Dysphania ambrosioides Jerry Parker 1968-10-26 192 Humboldt Big Lagoon, dredged sand-spit near county park. Comment
  NY242008  Elatine rubella A. Tiehm 1987-8-3 11474 Humboldt Pine Forest Range, Onion Creek Reservoir northwest of Blue Lake and Duffer Peak at the north end of the range. 2151.9 Comment
Read comments Feb 25 2012
  UC213005  Eleocharis bella Joseph P. Tracy 1920-8-15 5373 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 152 Comment
  HSC98584  Eleocharis macrostachya Cara Witte 2008-7-16 923 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  CAS-BOT-BC113337  Eleocharis montevidensis Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region. Comment
  SEINET200968  Eleocharis obtusa Joseph P. Tracy 1911-7-7 3401 Humboldt 3 miles northwest of junction of Willow Creek with Trinity River and near Beebe's Ranch. 914 Comment
  HSC7324  Eleocharis pachycarpa J. P. Tracy, H. E. Parks 1931-6-7 9569 Humboldt Trinidad 61 Comment
  UC666879  Eleocharis pachycarpa Joseph P. Tracy 1935-6-8 13947 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon) 3 Comment
  POM313063  Eleocharis pachycarpa Malcolm A. Nobs, S. Galen Smith 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon Comment
  RSA298364  Eleocharis palustris Thomas W. Nelson 1977-9-22 3749 Humboldt In drainage ditch along east side of State Route 101 just north of the Eureka Airport Comment
  UC1103650  Eleocharis parishii Joseph P. Tracy 1927-5-14 8010 Humboldt near S fork Trinity River Valley 182 Comment
  SEINET201037  Elymus X hansenii Joseph P. Tracy 1930-7-16 9054 Humboldt South Fork Moutain, open glades along summit near Blake lookout. Comment
  HSC58665  Elymus elymoides var. elymoides G. L. Clifton, Griswold 1979-8-1 12052 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC36619  Elymus glaucus J. D. Ackerman 1974-5-25 256 Humboldt Trinidad, Trinidad Beach S of Trinidad Head. Comment
  UCD61791  Elymus glaucus A. H. Murphy 1951-8-17 91 Humboldt Humboldt-Trinity Co. line: Near Cold Spring Lookout, South Fork Mtn. ca. 15 miles northeast of Bridgeville. 1219 Comment
  UCD62294  Elymus glaucus A. H. Murphy 1947-5-12 Humboldt Roadside near Carlotta. Comment
  HSC58601  Elymus glaucus subsp. glaucus G. L. Clifton, Griswold 1979-7-25 10826 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC97925  Elymus glaucus subsp. glaucus Cara Witte 2007-6-14 277 Humboldt Along National Forest 1. Near Kinsey Ridge. 2 miles north of intersection with 4N06. 1319 Comment
  SEINET200645  Elymus glaucus subsp. glaucus J. P. Tracy 1936-6-9 14889 Humboldt Bear River Ridge 457 Comment
  UC212884  Elymus glaucus subsp. virescens Joseph P. Tracy 1920-7-4 5340 Humboldt Little River Beach Northern Coast Ranges (rocky bluffs facing ocean) 15 Comment
  HSC98925  Elymus multisetus Cara Witte 2008-7-30 969 Humboldt Forest Service Road 4N32. 1/2 mile north of intersection with Forest Service Road 4N32B. 1417 Comment
  SACT001159  Elymus vancouverensis Malcolm Nobs, S. Smith 1949-8-3 Humboldt Salt marshes bordering Humboldt Bay, 2 miles north of Eureka. Comment
  UC184152  Elytrigia repens Joseph P. Tracy 1912-7-7 3743 Humboldt Eureka Northern Coast Region (edge of salt marsh) 0 Comment
  RSA647553  Epilobium angustifolium subsp. circumvagum G. F. Orr 1953-8-15 s.n. Humboldt Patrick Point State Park, Trinidad Comment
  RSA125036  Epilobium angustifolium var. macrophyllum Peter H. Raven 1958-7-21 13651 Humboldt 2.9 miles south of Ferndale on road to Cape Mendocino Comment
  UC1198484  Epilobium brachycarpum J. P. Tracy 1906-8-18 2541 Humboldt immediate vicinity of Eureka 0 Comment
  UC144089  Epilobium brachycarpum Joseph P. Tracy July 1908 2895 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  SBBG60140  Epilobium canum subsp. latifolium L. Rowntree 1931-7-21 Humboldt Mattole River 2 mi from Petrolia Comment
  HSC54585  Epilobium ciliatum Overton, Butler 1979-7-24 9639 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  JEPS39219  Epilobium ciliatum subsp. ciliatum W. L. Jepson 1936-8-15 17899 Humboldt 2 mi e Carlotta Comment
  RSA181873  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1933-7-25 12835 Humboldt Grouse Mountain, North Coast Ranges 1524 Comment
  RSA755161  Epilobium ciliatum subsp. glandulosum Robert F. Thorne, P. Everett 1965-8-9 35347 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 Comment
  HSC49656  Epilobium ciliatum subsp. watsonii J. P. Smith 1971-10-6 4952 Humboldt At the end of Murray Rd., McKinleyville Comment
  UC505114  Epilobium hallianum Joseph P. Tracy 1932-7-14 10533 Humboldt Corral Prairie Klamath Mountains, Trinity Summit (meadow) 1524 Comment
  UC505128  Epilobium minutum Joseph P. Tracy 1932-5-1 9843 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  JEPS39325 Image available Epilobium oreganum Chesnut and Drew 1888-8-1 Humboldt near Grouse Creek Comment
Read comments Jun 21 2008
  RSA70055  Epipactis gigantea Frank W. Peirson 1923-7-9 3697 Humboldt State Park on Eel River Comment
  UC667938  Equisetum arvense Joseph P. Tracy 1935-7-27 14292 Humboldt open places at McKay Prairie; Trinity Summit 1584 Comment
  UC1239789  Equisetum hyemale subsp. affine Joseph P. Tracy 1926-9-6 7795 Humboldt near S. Fork Trinity River Valley; Northern Coast Ranges 182 Comment
  HSC36259  Equisetum telmateia subsp. braunii John Rehling 1974-8-19 19 Humboldt Along Cranell Rd. next to pasture, Trinidad Comment
  HSC892  Equisetum telmateia subsp. braunii J. W. Johnson 1962-3-31 1420 Humboldt Arcata, along Lanphere lane Comment
  HSC5492  Erechtites glomeratus J. W. Johnson 1961-9-10 1112 Humboldt Arcata, S of Dune 3 N, Christenson Farm, Samoa Pennisula Comment
  RSA95041  Erechtites glomeratus F. W. Peirson 1926-7-12 7037 Humboldt Right bank of Redwood Creek, Orick Comment
  HSC57894  Ericameria greenei Butler, Overton 1979-7-31 11469 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  UC581712  Erigeron aliceae Joseph P. Tracy 1933-8-30 13038 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1615 Comment
  RSA44411  Erigeron annuus H. M. Pollard 1947-8-21 s.n. Humboldt roadside between Orleans and Boyse Creek Comment
  JEPS41520  Erigeron foliosus var. mendocinus Lincoln Constance 1934-5-29 720 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region, Upper Look Prairie 365 Comment
  HSC39954  Erigeron glaucus Linda M. Barker 1976-6-22 1616 Humboldt 3 mi. W of Arcata Comment
  SBBG52999  Erigeron glaucus J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, 10 mi S of Eureka 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
  HSC89429  Erigeron glaucus P. A. Daly 1984-6-16 31 Humboldt Open bluffs of Trinidad Head trail 61 Comment
  POM357512  Erigeron glaucus J. P. Smith, T. W. Nelson 1977-6-30 9208 Humboldt Samoa Peninsula just east of the drag strip. Comment
  RSA636111  Erigeron glaucus R. F. Thorne 1974-7-29 45079 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  UC726579  Erigeron glaucus A. A. Heller 1937-6-12 15915 Humboldt on the coast near the Whaling Station (Trinidad, foot of the grade leading up to the lighthouse on Trinidad Head.); Trinidad Head., Trinidad Comment
  POM56121  Erigeron inornatus var. biolettii Joseph P. Tracy 1918-7-6 5052 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  HSC39604  Erigeron inornatus var. inornatus Thomas W. Nelson, Jane P. Nelson 1976-7-26 3038 Humboldt S facing slope along ridge W of Lassic Peak 1707 Comment
  RSA54145  Erigeron inornatus var. inornatus H. M. Pollard 1946-8-28 s.n. Humboldt Near Summit of Orleans Mt. 1829 Comment
  CAS-BOT-BC214582  Erigeron philadelphicus Doris K. Kildale 1926-3-22 1600 Humboldt Fleener Creek Comment
  CAS-BOT-BC214583  Erigeron philadelphicus Doris K. Kildale 1926-5-31 2023 Humboldt Miranda on South Fork of Eel River Comment
  JEPS41377  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1934-5-8 16723 Humboldt Benbow, s Humboldt County South Fork Eel River, Benbow Comment
  UC1199400  Erigeron strigosus var. septentrionalis Joseph P. Tracy 1935-7-9 14057 Humboldt opposite Willow Creek; Trinity River Valley 152 Comment
  POM208988  Eriodictyon californicum Lincoln Constance 1934-6-15 887 Humboldt Grasshopper Pk.; Bull Creek watershed, Humboldt Redwood Park. 976 Comment
  UC906676  Eriodictyon californicum Joseph P. Tracy 1947-7-5 17795 Humboldt near Mud Springs Trinity Summit (Trinity Summit); , near Mud Springs 1371 Comment
  LA206939  Eriogonum latifolium Marcus E. Jones; 1931-7-12 28806 Humboldt Alton Comment
  RSA423114  Eriogonum latifolium M. B. Dunkle 1936-8-18 4818 Humboldt Moonstone Beach. Comment
  SD185287  Eriogonum latifolium G. K. Helmkamp, E. A. Helmkamp 2001-7-8 7016 Humboldt North coast: Samoa Peninsula, 2.6 mi S of CA-255 bridge across Humboldt Bay 14 Comment
  CAS-BOT-BC259538  Eriogonum luteolum var. luteolum Joseph P. Tracy 1938-8-14 16120 Humboldt South Fork of Trinity River: mountain slopes west of its mouth 304 Comment
  UC1198103  Eriogonum luteolum var. luteolum J. P. Tracy 1900-9-10 957 Humboldt 6 mi above Hydesville (Van Duzen River bar); Van Duzen River 60 Comment
  HSC60052  Eriogonum nudum var. nudum M. A. Baker 1978-5-6 487 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC54702  Eriogonum nudum var. nudum Harley P. Chandler 1901-6-1 1350 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  UCR32155  Eriogonum nudum var. nudum David J. Keil 1983-7-1 17272 Humboldt North Coast Range, Bull Creek Flats [Mattole] Road, c. 13 mi. west of junction with US Hwy 101 Comment
  UC1198147  Eriogonum nudum var. nudum Joseph P. Tracy 1948-8-8 18094 Humboldt near school house; Iaqua 609 Comment
  UC203955  Eriogonum nudum var. nudum Joseph P. Tracy 1918-7-3 4987 Humboldt Wilder Ridge Northern Coast Ranges, Kings Peak Range, Wilder Ridge 762 Comment
  CAS-BOT-BC261727  Eriogonum nudum var. oblongifolium Harley P. Chandler 1901-6-1 1442 Humboldt Klamath River 304 Comment
  HSC32552  Eriogonum nudum var. oblongifolium Thomas W. Nelson 1973-9-2 1121 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA33411  Eriogonum nudum var. oblongifolium Doris K. Kildale 1927-7-1 3621 Humboldt Alton Hill Comment
  CAS-BOT-BC261728  Eriogonum nudum var. oblongifolium Carl B. Wolf 1937-9-8 9300 Humboldt North Coast Range, Bull Creek - Petrolia Road, 11 mi. W. of Redwood Highway 304 Comment
  HSC99560  Eriogonum umbellatum var. argus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 225 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1433 Comment
  JEPS56193  Eriogonum umbellatum var. argus W. L. Jepson 1902-7-25 2119 Humboldt Trinity Summit Comment
  HSC43078  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-7-15 181 Humboldt Area of N Trinity Mtn. 1860 Comment
  OBI36670  Eriophyllum lanatum David J. Keil 1983-7-2 17314 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mtn Summit Rd Comment
  BLMAR181  Eriophyllum lanatum var. achilleoides Donald Hazlett 1994-6-7 181 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC301019  Eriophyllum lanatum var. achilleoides M. S. Jussel 1931-5-2 122 Humboldt 6 miles from Garberville Comment
  HSC97922  Eriophyllum lanatum var. achilleoides Cara Witte 2007-6-19 299 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  UC582676  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1935-6-23 13999 Humboldt French Camp Ridge 1066 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
  HSC101975  Erysimum capitatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 872 Humboldt Patterson Meadows 1566 Comment
  UC1199173  Erysimum capitatum Joseph P. Tracy 1911-7-6 3350 Humboldt mt slopes along rd between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC54208  Erysimum capitatum var. capitatum Terry Griswold, Marvin Butler 1979-7-12 7251 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  CAS-BOT-BC54909  Erysimum menziesii G. B. Rossbach 1955-6-10 596 Humboldt Depression in coastal dunes near Humboldt Bay lighthouse between Fairhaven and end of Sandy point off Eureka. Comment
  SEINET8229973  Erythranthe nasuta Joseph P. Tracy 1920-5-18 5379 Humboldt South Fork Eel River; from South Fork to Scotia; 4 miles above Dyerville. 61 Comment
  HSC71223  Erythronium californicum Thomas W. Nelson 1977-4-20 3331 Humboldt Along USFS Road 1N15 at summit 915 Comment
  HSC74620  Erythronium californicum M. A. Baker 1980-5-17 1248 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC504307  Erythronium californicum Doris K. Kildale 1928-5-1 5983 Humboldt MacLellan Mountain 914 Comment
  CAS-BOT-BC504308  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC403037  Eschscholzia californica Joseph P. Tracy 1937-7-29 15598 Humboldt South Fork Mountain. West slope near top, at Hyampom Trail 1676 Comment
  CAS-BOT-BC403038  Eschscholzia californica R. James; M. Goering; S. Matthews 1985-4-20 045 Humboldt Burnt Ranch Campground, Shasta-Trinity National Forest Comment
  HSC46009  Eschscholzia californica Catherine Chin 1978-9-8 113 Humboldt Arcata, A and 11th St. Comment
  SEINET12104680  Eschscholzia californica E. A. York 1990-1-10 2705 Humboldt USGS Redwood Field Station, Arcata Comment
  POM160277  Eschscholzia californica var. crocea Joseph P. Tracy 1926-5-15 7485 Humboldt Kneeland Prairie, North Coast Ranges 762 Comment
  SEINET3121248 Image available Eucephalus glabratus Joseph P. Tracy 1919-1 5304 Humboldt Along road between Three Creeks and mouth of Willow Creek 914 Comment
  RSA0024550  Eucephalus ledophyllus var. covillei Joseph P. Tracy 1919-9-18 5227 Humboldt Trinity Summit. 1890 Comment
  UC1222481  Euchiton involucratus Joseph P. Tracy 1948-9-26 18232 Humboldt 6 mi se Arcata (at s end of Fickle Hill); Fickle Hill 609 Comment
  UC204747  Euchiton sphaericus Joseph P. Tracy 1918-9-29 5103 Humboldt 4 mi above the mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  CAS-BOT-BC206913  Euonymus occidentalis C. Hart Merriam 1922-7-5 s.n. Humboldt Carson Woods, Fortuna Comment
  UC165820  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1911-9-3 3539 Humboldt 1 mi. s.e. Eureka; Northern Coast Region 0 Comment
  UC18050  Euonymus occidentalis var. occidentalis C. C. Marshall 1888-1 Humboldt Mad R. Mts. Comment
  UC183764  Euphorbia crenulata Joseph P. Tracy 1913-6-20 4245 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Range, Valley of Van Duzen River 762 Comment
  HSC7994  Euphorbia peplus Richard Steele 1962-4-14 19 Humboldt 1/4 mi. W of H.S.C. campus 15 Comment
  JEPS52427  Euphorbia spathulata Joseph P. Tracy 1926-5-2 7431 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1198982  Euphorbia spathulata Joseph P. Tracy 1947-5-10 17678 Humboldt near Briceland 457 Comment
  UC1198979  Euphorbia spathulata Joseph P. Tracy 1926-5-9 7455 Humboldt near Bridgeville; Northern Coast Ranges 762 Comment
  CAS-BOT-BC312208  Eurybia radulina Doris K. Kildale 1929-8-4 8780 Humboldt Mattole River at Union Mattole Comment
  HSC17559  Fallopia sachalinensis H. E. Parks, S. T. Parks Jul 1952 24448 Humboldt South of the Elk River Bridge on Hwy 10 Comment
  UC525633  Festuca californica Joseph P. Tracy 1926-5-30 7518 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  UC177163  Festuca idahoensis Joseph P. Tracy 1912-7-26 3868 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC70909  Festuca idahoensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5877 Humboldt Martins Ferry Comment
  HSC73746  Festuca occidentalis M. A. Baker 1980-7-15 2950 Humboldt Near Whiting Ridge. 1341 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
  UC53591  Festuca occidentalis H. P. Chandler 1901-1 1775 a Humboldt Humboldt Bay Comment
  HSC9976  Festuca rubra J. A. Waller 1965-5-21 26 Humboldt Near Big Lagoon Comment
  UC176573  Festuca rubra Joseph P. Tracy 1912-7-7 3740 Humboldt Eureka North Coast Region 0 Comment
  CAS-BOT-BC282520  Festuca subbiflora Joseph P. Tracy 1901-6-10 1134 Humboldt Eureka 60 Comment
  SEINET10559491  Festuca subulata Joseph P. Tracy 1935-7-27 Tracy 14295 Humboldt Moist stream bank. Trinity summit. Open places at McKay Prairie. 1585 Comment
  UCD66489  Festuca subuliflora R. Tofsrud 1949-7-1 Humboldt On road from Scotia to Capetown. Comment
  UC249608  Foeniculum vulgare Joseph P. Tracy 1922-8 6104 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CHSC68501  Fragaria chiloensis Vernon H. Oswald 1997-4-10 8327 Humboldt Elk Head, north end of Trinidad State Beach. Near the bluffs overlooking the ocean. 30 Comment
  HSC18616  Fragaria chiloensis A. Sylvester, R. Spellenberg, D. Sutherland 1966-3-26 1355 Humboldt Near Beachcross 5 mi. W of Ferndale on coast Comment
  HSC18636  Fragaria vesca S. S. Stutz 1963-3-24 14 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  LA207729  Frangula californica subsp. californica Carl B. Wolf; 1934-6-30 5842 Humboldt Back of Shelter Cove 60 Comment
  CAS-BOT-BC53403  Frangula californica subsp. occidentalis C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC59970  Frangula purshiana L. R. Abrams 1922-6-25 8258 Humboldt N. of Mad River near Arcata. Comment
  UC562744  Fraxinus latifolia Joseph P. Tracy 1928-4-8 8410 Humboldt Carlotta Northern Coast Ranges 60 Comment
  HSC103299  Fritillaria affinis Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3008 Humboldt Six Rivers National Forest; ~ 0.2 mi. south-southeast of Cold Spring Camp; ~ 3.3 aerial mi. south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  HSC94159  Fumaria officinalis Gordon Leppig, Sylvia Leppig 2000-12-7 1523 Humboldt 7th and I St. just W of Post Office 6 Comment
  HSC37854  Galium aparine Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay Comment
  UC1222498  Galium aparine Joseph P. Tracy 1950-6-25 18891 Humboldt Burr Valley 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
  HSC98081  Galium bolanderi Cara Witte 2007-7-3 415 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  POM338118  Galium californicum F. R. Fosberg 1948-8-28 30044 Humboldt Between Benbow and Garberville. Comment
  JEPS6517  Galium mexicanum var. asperulum Joseph P. Tracy 1921-9-4 5953 Humboldt near Willow Creek (moist banks along river mouth); Northern Coast Ranges, Trinity River Valley, South Fork Trin 152 Comment
  JEPS52838  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3860 Humboldt 2.3 mi s Weott; Avenue of The Giants 60 Comment
  JEPS14011  Galium parisiense Roxana S. Ferris 1955-7-11 12972 Humboldt betw. Willow Creek and Blue Lake (summit of US Hwy 299) Comment
  UC198664  Galium parisiense Joseph P. Tracy 1916-6-19 4710 Humboldt Bosworth's Northern Coast Ranges, Laribee Creek 457 Comment
  UC602539  Galium parisiense Joseph P. Tracy 1911-7-4 3278 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC175593  Galium porrigens Joseph P. Tracy 1912-7-21 3767 Humboldt Alton Northern Coast Region 30 Comment
  UC169022  Galium trifidum Joseph P. Tracy 1906-8-18 2542 Humboldt Eureka Northern Coast Region 0 Comment
  UC196077  Galium trifidum Joseph P. Tracy 1900-9-3 941 Humboldt Eureka Northern Coast Region 0 Comment
  HSC24403  Galium triflorum J. O. Sawyer 1970-6-24 2279 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC76185  Galium triflorum Overton, Butler 1979-7-24 9770 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC41594  Galium triflorum Thomas W. Nelson, Jane P. Nelson 1977-7-1 3554 Humboldt 1494 Comment
  JEPS6537  Galium triflorum W. L. Jepson 1902-6 1911 Humboldt Pepperwood Comment
  HSC76357  Garrya buxifolia Denis Kearns 1981-7-6 47 Humboldt Near Mosquito Lake 1122 Comment
  HSC103981  Garrya elliptica C. Reynolds 2015-4-12 28 Humboldt Just before entrance onto footpath at Freshwater Beach from Kuchel Visitor Center 1 Comment
  HSC12588  Garrya elliptica Gary J. Stebbins 1970-2-2 5 Humboldt Along Clam Beach lagoon rd. off McKinleyville exit with Hwy. 101 Comment
  JEPS66720  Garrya elliptica Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  HSC72925  Garrya fremontii Gail Newton 1980-7-22 1679 Humboldt Near Devils Backbone 231 Comment
  UC38566  Gastridium ventricosum Harley P. Chandler 1901-6-1 1506 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  SEINET12518332 Image available Gastridium ventricosum Harley P. Chandler 1901-1 1506 Humboldt Klamath River, North Coast Ranges 427 Comment
  CAS-BOT-BC58914  Gaultheria shallon Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC45586  Gaultheria shallon Diane L. Reed 1978-5-27 140 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  HSC47492  Gaultheria shallon Sheila Logan 1978-4-9 16 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  SEINET2031090 Image available Gaultheria shallon Joseph P. Tracy 1908-1 2863 Humboldt Valley of Van Duzen River; opposite Buck Mountain 762 Comment
  UC562499  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13047 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  POM247151  Gayophytum heterozygum Joseph P. Tracy 1933-8-30 13045 Humboldt North Coast Ranges: Grouse Mountain 1524 Comment
  UC1196957  Gayophytum humile Joseph P. Tracy 1919-9-18 5234 1/2 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC35402  Gayophytum humile Chesnut and Drew 1888-7-20 Humboldt S. Fork Mt. Comment
  UC444818  Gentiana affinis var. ovata Charlotte M. Wilder 1912-9-15 Humboldt n Capetown (road banks); Seven Mile Hill Comment
  HSC102240  Gentiana plurisetosa Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  HSC12527  Gentiana sceptrum Wilbur Peterson 1970-10-17 54 Humboldt Big Lagoon Comment
  JEPS47022  Gentiana sceptrum Joseph P. Tracy 1924-8-3 6768 Humboldt Northern Coast Region, Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  UC213322  Gentianopsis simplex Joseph P. Tracy 1919-9-22 5275 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC8647  Geranium dissectum D. B. Bader 1963-4-1 39 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101, along the R.R. tracks Comment
  HSC45985  Gilia capitata J. P. Smith, Steve Selva 1970-6-14 3842 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  RSA84895  Gilia capitata H. M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  HSC97970  Gilia capitata subsp. capitata Cara Witte, Michael Scott 2007-6-22 346 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  SD42478  Gilia capitata subsp. chamissonis Carl B. Wolf 1937-8-11 8901 Humboldt Fleener creek, 1/2 mi. South of Centerville 46 Comment
  BLMAR718  Gilia capitata subsp. pacifica Jennifer Wheeler 2012-6-5 718 Humboldt King range, Mattole beach bluffs 18 Comment
  CAS-BOT-BC226156  Gilia capitata subsp. pacifica Doris K. Kildale 1927-5-15 3168 Humboldt Back of Cape Mendocino Comment
  RSA46733  Gilia capitata subsp. pacifica Doris K. Kildale 1927-7-1 s.n. Humboldt Alton Hill Comment
  RSA469341  Gilia capitata subsp. pacifica J. P. Smith 1973-5-26 6816 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  RSA742109  Gilia capitata subsp. pacifica Peter L. Morrell, Nicole Deligans 1993-8-14 317 Humboldt North Coast: about 1 mile south of McNutt-Mattole Rd., 5.2 miles south of Devil's Gate, 8.4 miles south of Cape Mendocino. 30 Comment
  UC1197922  Gilia capitata subsp. pacifica Joseph P. Tracy 1921-5-30 5498 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC16988  Gilia millefoliata L. H. Myers 1963-5-13 14 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  JEPS79894  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  UC1197895  Gilia sinistra subsp. sinistra Joseph P. Tracy 1930-7-23 9133 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC71724  Githopsis specularioides M. A. Baker 1980-6-26 2461 Humboldt Near Sims Creek 610 Comment
  HSC73141  Githopsis specularioides M. A. Baker 1980-5-18 1333 Humboldt Near Black Mtn. 792 Comment
  UC1409059  Glebionis segetum Robert F. Thorne and P. Everett 1965-8-8 35270 Humboldt n edge of Eureka (e of Hwy. 101) 4 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
  UCR196165  Glyceria declinata R. F. Thorne, Percy C. Everett 1965-8-9 35331 Humboldt Northwestern; Outer North Coastal region, Clam Beach County Park, along highway 3 Comment
  UC183531  Glyceria elata Joseph P. Tracy 1908-6 2770 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET11678065  Glyceria striata H. P. Chandler 1901-1 1526 Humboldt Klamath River, North Coast Ranges 427 Comment
  RSA638984  Gnaphalium stramineum Percy C. Everett 1965-8-6 35171 Humboldt Samoa Dunes. 3 Comment
  HSC99539  Goodyera oblongifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 204 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC147895  Gratiola ebracteata Joseph P. Tracy 1908-6-7 2618 Humboldt Butler Valley Northern Coast Ranges, , Butler Valley (Mad River) 152 Comment
  CAS-BOT-BC304748  Grindelia hirsutula A. A. Heller 1923-7-7 13764 Humboldt Along the Redwood highway, near the Eel River bridge south of Garberville Comment
  POM232053  Grindelia hirsutula Roxana S. Ferris 1937-8-21 9388 Humboldt Face of cliff above beach, Shelter Cove. Comment
  RSA18609  Grindelia hirsutula Lyman Benson 1937-9-9 9305 Humboldt Coast, 2 miles S of Cape Mendocino. 6 Comment
  UC637144  Grindelia hirsutula Edward Lee 1934-8-17 1148 Humboldt e shore Big Lagoon (35 mi n of Eureka); e shore of Big Lagoon 3 Comment
  CHSC56525  Grindelia stricta var. platyphylla L. P. Janeway 1983-9-24 697 Humboldt 10-30 ft from water line of Big Lagoon, at south corner of county campground. 3 Comment
  UC1222253  Hackelia californica Joseph P. Tracy 1949-8-26 18524 Humboldt on Ridge 2 mi e Grove's Prairie (near Elk Camp); Trinity nSummit 1524 Comment
  UC1239636  Hackelia californica Joseph P. Tracy 1919-9-18 5247 1/2 Humboldt Corral Prairie Trinity Summit; Northern Coast Ranges 1524 Comment
  HSC74193  Hackelia micrantha M. A. Baker 1980-7-22 3127 Humboldt Near Grogan Hole. 1676 Comment
  HSC102116  Hastingsia alba M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1020 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC57980  Hastingsia serpentinicola G. L. Clifton, Griswold 1979-7-31 11710 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  POM161485  Hazardia whitneyi var. discoidea Joseph P. Tracy 1919-9-23 5287 Humboldt Trinity Summit 1829 Comment
  RSA44540  Helenium autumnale H. M. Pollard 1947-8-18 s.n. Humboldt Klamath river bar, near Orleans. Comment
  HSC102180  Helenium bigelovii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1093 Humboldt Patterson Meadows 1555 Comment
  HSC73632  Helenium bigelovii M. A. Baker 1980-7-22 3100 Humboldt Near Grogan Hole 152 Comment
  HSC75258  Helenium bigelovii J. O. Sawyer, M. A. Ericksen 1980-8-18 4052 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  RSA18612  Helenium bigelovii C. B. Wolf 1937-8-13 9248 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  SEINET5711017  Helenium bigelovii Lowell E. Urbatsch 1990-1 6798 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the rd. to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this road (FS 7 NO4) travel 1.5 miles to another fork; continue on 7NO4N (the left fork) for 7.4 miles. At this point, take 7N04N, the road to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  HSC40031  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1976-6-22 2879 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  UC1223094  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1950-6-23 18864 Humboldt 3 mi ne Alderpoint; Dobbyn Creek 213 Comment
  HSC1805  Hemizonia congesta subsp. tracyi William J. Ferlatte, B. D. Rogers 1966-6-15 2091 Humboldt Near Bridgeville Comment
  JEPS12587  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1937-7-19 15456 Humboldt lower foothills of its nw slope Buck Mountain 914 Comment
  UC1199373  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1921-6-12 5817 Humboldt Kneeland Prairie 762 Comment
  UC1245364  Hemizonia congesta subsp. tracyi Joseph T. Gregory 1932-6-19 184 Humboldt Buck Mt. Comment
  UC205206  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1919-7-20 5183 Humboldt w side near top Mount Pierce; Northern Coast Ranges, Mount Pierce 914 Comment
  UC552351  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1908-6 2754 Humboldt Buck Mt., Valley of Van Duzen River 762 Comment
  HSC55744  Heracleum maximum G. L. Clifton, Terry Griswold 1979-7-26 10258 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  UC275454  Hesperevax acaulis var. robustior Joseph P. Tracy 1925-5-17 6982 Humboldt near s fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC203568  Heterocodon rariflorum Joseph P. Tracy 1918-7-5 5009 Humboldt White Thorn Valley; Northern Coast Ranges 304 Comment
  UC1199410  Heterotheca oregona var. rudis Joseph P. Tracy 1939-8-5 16389 Humboldt Dinsmore's Van Duzen River 737 Comment
  HSC71159  Heuchera micrantha Thomas W. Nelson 1977-6-15 3423 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  JEPS1222  Heuchera micrantha var. macropetala Freed Hoffman 1950-7-11 4009 Humboldt 16.1 mi above and n of Klamath River Road (along road to Cedar Camp) 914 Comment
  CAS-BOT-BC425003  Heuchera micrantha var. micrantha Huron H. Smith 1911-6-6 3794 Humboldt Little River Jc. Comment
  JEPS26199  Heuchera rubescens Joseph P. Tracy 1932-7-18 10715 Humboldt head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC56932  Hieracium albiflorum G. L. Clifton, Butler 1979-7-26 9368 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC57107  Hieracium albiflorum Overton, Butler 1979-7-25 9845 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  SEINET10839135  Hieracium albiflorum Mary Merello 1993-6-19 Merello 661 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  UC1199465  Hieracium albiflorum Joseph P. Tracy 1935-7-28 14331 Humboldt Head of Devil's Hole Trinity Summit 1828 Comment
  BLMAR738  Hieracium albiflorum Jennifer Wheeler 2015-5-12 738 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  HSC100438  Hieracium albiflorum Carl C. Marshall Jun 1886 259 Humboldt Near Hoopa. Comment
  RSA12437  Hieracium albiflorum C. B. Wolf 1934-7-2 5856 Humboldt 2 miles from Bald Mt. on road to Korbel. 762 Comment
  RSA44541  Hieracium albiflorum H. M. Pollard 1947-8-23 s.n. Humboldt Fontana's Fishing Lodge, near Orleans. Comment
  RSA595781  Hieracium albiflorum R. S. Woglum 1931-7-15 24 A Humboldt Outer Coast Ranges, Sequoia Park. Comment
  CAS-BOT-BC316004  Hieracium nudicaule Joseph P. Tracy 1932-7-17 10659 Humboldt Corral Prairie, Trinity Summit 1584 Comment
  HSC63084  Hippuris vulgaris David Wheeler 1979-4-20 72 Humboldt Clam Beach Ponds, N pond, 0.25 mi. S of Crannel Rd. between the frontage road and Hwy. 101 Comment
  HSC36309  Hippuris vulgaris David Sohrakoff 1972-11-12 1 Humboldt Clam Beach ponds Comment
  POM232313  Holcus lanatus I. L. Wiggins 1930-6-25 4614 Humboldt Sand dunes 2 miles north of Samoa. Comment
  SEINET200828 Image available Holcus lanatus J. P. Tracy 1914-9-13 4626 Humboldt Eureka 0 Comment
  UC38600  Holcus lanatus Harley P. Chandler May 1901 1118 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  UC922018  Holcus mollis Joseph P. Tracy 1948-7-31 18079 Humboldt Eureka 30 Comment
  BLMAR150  Holodiscus discolor Donald Hazlett 1994-6-7 150 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC149905  Holodiscus discolor Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC149906  Holodiscus discolor Alice Eastwood 1921-7-21 10651 Humboldt Carlotta Comment
  RSA183590  Holodiscus discolor D. E. Anderson 1963-9-1 2806 Humboldt Near Kneeland. 732 Comment
  HSC10216  Hordeum brachyantherum subsp. brachyantherum J. P. Tracy 1933-6-6 12508 Humboldt Bluffs in Trinidad 9 Comment
  HSC104057  Hordeum murinum C. Reynolds 2015-4-28 41 Humboldt Along trail through Arcata Marsh, near Interpretive Center 5 Comment
  CAS-BOT-BC536630  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt Foot of low hills south of Fields Landing 6 Comment
  HSC21514  Hydrocotyle ranunculoides Rollin Sparrowe 1961-12-8 1 Humboldt In slough S of road Comment
  HSC57864  Hydrophyllum fendleri var. albifrons G. L. Clifton 1979-7-31 11389 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC169025  Hydrophyllum tenuipes W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  UC1239767  Hydrophyllum tenuipes Joseph P. Tracy 1931-5-31 9535 Humboldt Lawrence Creek Northern Coast Ranges (at crossing of Kneeland Road) 457 Comment
  UC502949  Hypericum anagalloides Joseph P. Tracy Jul 16 1930-Jul 19 1930 8978 Humboldt S. Fork Mt., McKay Camp Northern Coast Ranges, S. Fork Mt., McKay Camp 1676 Comment
  CDA30714  Hypericum perforatum M. K. Beyers, I. Shepardson 2009-9-13 250 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC57046  Hypericum perforatum Overton, Butler 1979-7-24 9695 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC75374  Hypericum perforatum J. O. Sawyer, M. A. Ericksen 1980-7-7 3576 Humboldt Slopes along Aikens Creek, Adroni Research Area 457 Comment
  SD93061  Hypericum perforatum W. Bertsch 1953-7-30 225 Humboldt Highway 101 at Dyerville. 60 Comment
  UC165829  Hypericum perforatum Joseph P. Tracy 1911-7-9 3478 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC909470  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt ca. 1/2 mi. n. Orleans (near Klamath R.) Comment
  BLMAR223  Hypericum perforatum Jennifer Anthony-Wheeler 1996-7-11 223 Humboldt N. Dobbyn creek 1005 Comment
  HSC39463  Hypochaeris glabra J. P. Smith, J. O. Sawyer 1976-5-2 Humboldt S. R. 96, 4.9 mi. N of its junction with S.R. 299 122 Comment
  CAS-BOT-BC311439  Hypochaeris radicata Doris K. Kildale 1925-7-17 1074 Humboldt Cutten - McDonald Tract - Eureka Comment
  HSC91594  Ilex aquifolium E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near entrance Comment
  SEINET200732  Ipomopsis aggregata J. P. Tracy 1932-7-12 10440 Humboldt Trinity summit at Corral Prairie 1585 Comment
  RSA67626  Iris Philip A. Munz 1951-7-15 16546 Humboldt dry slopes in woods, about 3 miles northeast of Willow Creek Comment
  HSC13853  Iris douglasiana J. C. Reppas 1963-3-16 1 Humboldt 820 Fickle Hill Rd. Comment
  SEINET12056852  Iris douglasiana H. P. Chandler 1901-1 1262 Humboldt Redwood Belt 457 Comment
  HSC34872  Iris purdyi Thomas W. Nelson, James Nelson 1975-5-5 1781 Humboldt Beside Hwy. 101, 5 mi. S of Salmon Creek bridge Comment
  RSA137352  Iris purdyi Lee W. Lenz, E. K. Balls 1955-5-16 20744 Humboldt 2.7 miles northwest of Ettersburg along old Coast Road, Garbersville to Ferndale 457 Comment
  RSA167433  Iris purdyi Joseph P. Tracy 1950-7-1 18950 Humboldt Friday Camp, Friday Ridge, Grouse Mountain, North Coast Ranges 1220 Comment
  HSC70403  Iris tenuissima M. A. Baker 1980-6-7 1835 Humboldt Near Ammon Creek 115 Comment
  JEPS17239  Iris tenuissima Joseph P. Tracy 1932-7-17 10662 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  CDA39594  Iris tenuissima Rex E. Marsh 1961-4-1 s.n. Humboldt 2 miles south of Garberville. 0 Comment
  RSA136529  Iris tenuissima Lee W. Lenz 1953-5-12 18295 Humboldt 2 miles west Humboldt County line, Highway 299 180 Comment
  HSC45611  Isatis tinctoria Diane L. Reed 1978-5-7 68 Humboldt E fork of Willow Creek, 34 mi. from Hwy. 101 on Hwy. 299 Comment
  SEINET200597 Image available Isoetes J. P. Tracy 1935-5-25 13842 Humboldt Fort Seward 107 Comment
  JEPS93174  Isolepis cernua Margriet Wetherwax and Kevin Downing 1993-8-9 2454 Humboldt s side of slough just past Pigeon Point (e side of road, near Bayside Rd and Myrtle, e side of bay, just n of Eureka); Humboldt Bay, Eureka Slough 5 Comment
  RSA54123  Juncus articulatus Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek. Klamath River Canyon. Comment
  CDA39158  Juncus breweri T. C. Fuller 1961-9-28 7057 Humboldt 1.5 miles south of Samoa. 0 Comment
  UCD141319  Juncus breweri Harold L. Lint 1964-1-4 C 308 Humboldt Hwy 101, Dry Lagoon State Park. Comment
  UC963870  Juncus bufonius H. E. Parks and S. T. Parks 1943-7-1 24254 Humboldt Spruce Cove North Coast Ranges, Trinidad 60 Comment
  CHSC19493  Juncus bufonius var. bufonius Norman Dennis 1965-6-19 128 Humboldt About 1/4 mile south and 1 mile east of the junction of Barry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles southeast of Kneeland. 792 Comment
  HSC23674  Juncus covillei Tim Baroni 1971-6-25 56 Humboldt Comment
  RSA53853  Juncus effusus subsp. pacificus Henry M. Pollard 1945-8-24 s.n. Humboldt Betw Orleans and Camp Creek Klamath River Canyon. Comment
  HSC90769  Juncus ensifolius Gail Newton 1982-6-10 3597 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC62860  Juncus hesperius J. M. DiTomaso 1979-5-16 1015 Humboldt Corner of LK Wood and 14th St., Arcata Comment
  UC184144  Juncus occidentalis Joseph P. Tracy 1912-6-26 3707 Humboldt Eureka Northern Coast Region 0 Comment
  HSC98789  Juncus patens Cara Witte 2008-7-11 878 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC98517  Juncus tenuis Cara Witte 2007-6-28 382 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  CAS-BOT-BC235892  Keckiella corymbosa Doris K. Kildale 1929-8-4 8779 Humboldt Mattole River at Union Mattole Comment
  CAS-BOT-BC235893  Keckiella corymbosa Milo S. Baker 1923-8-25 336 Humboldt Near Richardson Grove Comment
  RSA79773  Keckiella corymbosa F. W. Peirson 1926-7-13 7060 Humboldt Mad River, near Blue Lake. Comment
  JEPS12480  Kelloggia galioides Joseph P. Tracy 1930-7-19 9081 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  SEINET200338 Image available Koeleria macrantha J. P. Tracy 1917-6-17 4819 Humboldt Bluff at Ocean Niero Cemetery 61 Comment
  CAS-BOT-BC499192  Kopsiopsis strobilacea C. D. Duncan 1920-9-27 s.n. Humboldt Supply Creek Canyon Comment
  HSC99476  Lapsana communis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 133 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC175194  Lasthenia californica subsp. californica Joseph P. Tracy 1913-6-21 4247 Humboldt valley Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch, valley of Van Duzen 762 Comment
  UC1368669  Lathyrus glandulosus J. P. Tracy 1946-6-15 17571 Humboldt w of summit between North Fork Mad River and Redwood Creek (along Lord Ellis Road, part of Trinity Highway) 609 Comment
  UC495704  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1927-5-15 8042 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC931200  Lathyrus lanszwertii var. tracyi C. L. Hitchcock 1949-6-8 19086 Humboldt 3 mi se Willow Creek (along Highway 299) Comment
  UCD106361  Lathyrus latifolius W. A. Williams 1951-6-15 s.n. Humboldt 20 mi. E. Willow Creek. Comment
  RSA245212  Lathyrus littoralis J. E. Walters 1966-4-13 35 Humboldt 1/4 miles N. of Samoa Pulp Mill. 5 Comment
  RSA406671  Lathyrus littoralis Charlotte M. Hoak 1931-7-14 s.n. Humboldt Sand dunes above Eureka City. Comment
  CAS-BOT-BC205042  Lathyrus palustris Doris K. Kildale 1926-6-25 2177 Humboldt Big Lagoon Comment
  CAS-BOT-BC205043  Lathyrus palustris Malcom A. Nobs; S. Galen Smith 1949-8-3 1187 Humboldt At the southern outskirts of Eureka Comment
  SEINET200583  Lathyrus polyphyllus Joseph Tracy 1935-7-22 14126 Humboldt Trinity Summit Klamath Mountains; In fir woods near Corral Prairie 1524 Comment
  UC303183  Lathyrus polyphyllus Joseph P. Tracy 1923-6-22 6344 Humboldt Bald Mt. Northern Coast Ranges 914 Comment
  SDSU4206  Lathyrus sulphureus D. F. Howe 1962-5-21 3298 Humboldt 16 miles north of Garberville on #101. 61 Comment
  RSA168907  Lathyrus vestitus subsp. bolanderi Joseph P. Tracy 1942-7-26 17298 Humboldt Valley of South Yager Creek. 610 Comment
  UCSC000375  Lathyrus vestitus subsp. bolanderi Charisse Bickford 1978-8-14 s.n. Humboldt Eureka, Korbel Comment
  UC168987  Lathyrus vestitus var. vestitus Joseph P. Tracy 1912-8-3 3971 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  BLMAR61  Layia carnosa Jennifer Anthony-Wheeler 1994-3-31 61 Humboldt King range, Matole beach South of campground 12 Comment
  UC1225755  Lepidium nitidum Joseph P. Tracy 1948-5-31 18012 Humboldt Alder Point 304 Comment
  UC492270  Lepidium nitidum Joseph P. Tracy 1932-4-24 9809 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  RSA43876  Lepidium virginicum var. pubescens H. M. Pollard 1947-8-4 s.n. Humboldt Orleans Hotel grounds. Comment
  HSC17097  Leptosiphon androsaceus William J. Ferlatte, B. D. Rogers 1966-6-15 2104 Humboldt Larabee Valley 762 Comment
  SBBG64597  Leptosiphon androsaceus V. Duran 1933-5-10 3403 Humboldt near Blocksburg Comment
  SEINET3363433 Image available Leptosiphon androsaceus Victor Duran 1933-5-10 Humboldt Near Blocksburg Comment
  CAS-BOT-BC341824  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC94818  Leucanthemum vulgare R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-6-6 837 Humboldt Humboldt Redwoods S.P., Pole Line Prairie along Pole Line Road, 1 air mi. N of Mattole Rd., 6 mi. E of Hwy. 101 274 Comment
  HSC71378  Leucanthemum vulgare J. P. Smith 1971-10-6 4949 Humboldt End of Murray Rd. in McKinleyville. Comment
  RSA298334  Lewisia cotyledon Marc Baker 1980-7-24 378155 Humboldt F of Salmon quad, Orleans Mtsn. 73 Comment
  RSA249431  Lewisia triphylla D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5597 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  RSA129558  Leymus mollis subsp. mollis H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 0 Comment
  SD51274  Ligusticum apiifolium Darley F. Howe 1961-8-2 3614 Humboldt 24 miles east of Orick on Bald Mountain Road. 915 Comment
  UC1197174  Ligusticum apiifolium Joseph P. Tracy 1930-7-6 8851 Humboldt at crossing of the Iaqua to yager rd. North Yager Creek 396 Comment
  SEINET12057698  Lilium F. H. Utech 1977-6-30 s.n. Humboldt Redwoods National Park Comment
  HSC63175  Lilium bolanderi M. A. Baker 1979-7-10 1021 Humboldt Comment
  CAS-BOT-BC508407  Lilium columbianum A. M. Vollmer; L. Beane 1953-7-1 121 Humboldt Unspecified Comment
  HSC100557  Lilium columbianum Carl C. Marshall Jun 1885 131 Humboldt Near Jarningan's. Comment
  HSC45280  Lilium columbianum Clifton Raymond Chesbrough 1971-7-5 40 Humboldt Along Fickle Hill Rd. Comment
  HSC15575  Lilium kelloggii D. E. Anderson 1962-7-14 2250 Humboldt 2 mi. W of Kneeland Post Office Comment
  HSC33664  Lilium occidentale Doris K. Niles, Thomas W. Nelson 1974-6-20 Humboldt Wiggins Ranch, W of garbage dump Comment
  UC1198242  Lilium occidentale Joseph P. Tracy 1913-8-31 4387 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC130731  Lilium pardalinum Doris K. Kildale 1925-7-4 994 Humboldt Upper Willow Creek Canyon 640 Comment
  HSC53855  Lilium pardalinum subsp. pardalinum Griswold, Butler 1979-7-10 6322 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  CHSC19733  Limnanthes douglasii D. E. Anderson 1965-5-8 3634 Humboldt About 4 miles east of Berry Summit, along Hw. 299. Roadside ditch. Comment
  UC17908  Limnanthes douglasii J. P. Tracy 1899-5-7 31 Humboldt Eureka Comment
  HSC45598  Limnanthes douglasii subsp. nivea Diane L. Reed 1978-5-27 131 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  RSA15573  Limonium californicum Carl B. Wolf 1927-8-28 1187 Humboldt Eureka Bay on road to Arcata Comment
  RSA244966  Limonium californicum William J. Ferlatte, B. D. Rogers 1966-8-15 3126 Humboldt Near Arcata sewage pond. North Humboldt Bay. Comment
  UC1198577  Linanthus acicularis Joseph P. Tracy 1921-4-24 5474 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC1198591  Linanthus androsaceus Joseph P. Tracy 1923-6-3 6252 Humboldt Kneeland Prairie 762 Comment
  JEPS58157  Linanthus androsaceus Milo S. Baker 1923-7-20 45 Humboldt Yager Creek 609 Comment
  RSA183497  Linaria canadensis J. R. Woodside 1963-5-11 8 Humboldt 1.25 miles north of Fairhaven. Comment
  SD37712  Linaria vulgaris Edith A. Purer 1932-7-30 Humboldt Orick, roadside Comment
  HSC99473  Linnaea borealis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 127 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC3907  Linnaea borealis subsp. longiflora William J. Ferlatte, B. D. Rogers 1966-6-8 2088 Humboldt 2 mi. W of Forest Glen, Granite Canyon. Comment
  SBBG7338  Linnaea borealis var. longiflora K. K. Muller 1954-6-21 634 Humboldt Olson Crk, 2 mi ENE of Mad River Comment
  UC169339  Linnaea borealis var. longiflora Joseph P. Tracy 1911-7-12 3521 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek (at Three Creeks); Northern Coast Ranges, bwt Three Creeks and Willow Creek mou 914 Comment
  HSC15798  Linum bienne Gerald T. Rood 1962-5-6 18 Humboldt Kneeland Rd. ca. 1 mi. W of Barry Rd. Comment
  HSC95072  Linum bienne Andrea Pickart 2002-7-2 146 Humboldt King Salmon Sand Spit 0 Comment
  HSC15801  Linum bienne Francis Winter 1960-4-24 Humboldt 1 mi. N of Redwood Creek Ranch 396 Comment
  SEINET12185780  Linum micranthum J. P. Tracy 1950-1 18994 Humboldt on the Albee Rd., Buck Mountain, high meadow on W side, 3 mi S of Burr Valley 1158 Comment
  HSC30369  Listera caurina J. D. Ackerman 1974-6-21 320 Humboldt 2 mi. N of Manila, between dunes and Mad River Slough Comment
  HSC99449  Listera caurina K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 99 Humboldt Near North Trinity Mtn., 11. 9 mi. E of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest 1372 Comment
  UC902011  Listera caurina Harold E. Parks and Joseph P. Tracy 1949-6-25 11667 Humboldt near Box Camp; Hoopa Mountain 1524 Comment
  HSC74730  Listera convallarioides Gail Newton 1981-7-24 2321 Humboldt Near Bug Creek Butte 1417 Comment
  UC275532  Listera cordata Joseph P. Tracy 1924-3-30 6632 Humboldt near Bridgeville; Northern Coast Ranges 182 Comment
  RSA178557  Lithocarpus densiflorus var. densiflorus Joseph P. Tracy 1950-8-4 19253 Humboldt Grasshopper Peak (in Bull Creek State Park at head of Canoe Creek). Comment
  RSA293190  Lithocarpus densiflorus var. densiflorus Thomas W. Nelson, Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland, east side of junction of Kneeland & Maple Creek roads. 671 Comment
  RSA44461  Lithocarpus densiflorus var. densiflorus H. M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail. 762 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
  UC1196488  Lithophragma campanulatum Joseph P. Tracy 1933-7-26 12926 Humboldt on the s slope Grouse Mountain; s slope Grouse Mountain 1219 Comment
  UC492222  Lithophragma heterophyllum Joseph P. Tracy 1932-4-24 9827 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC12422  Lobularia maritima Gary J. Stebbins 1970-3-3 15 Humboldt Road to Kneeland at the old Eureka dump, 4 mi. W of Kneeland Comment
  UC1199423  Logfia filaginoides Joseph P. Tracy 1927-5-8 7972 Humboldt grassy slopes facing South Fork Eel River; Philipsville 121 Comment
  HSC10308  Lolium perenne Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  HSC74113  Lolium perenne M. A. Baker 1980-6-16 1941 Humboldt Near Monks Camp. 1097 Comment
  UCD66459  Lolium perenne A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3476 Humboldt 4 miles north of Birdgeville. Comment
  CAS-BOT-BC271058  Lolium temulentum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UC21100  Lomatium dissectum var. multifidum Harley P. Chandler June, 1901 1340 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC647476 Image available Lomatium tracyi Joseph P. Tracy 1933-7-25 12895 Humboldt Grouse Mountain. 1524 Comment
  HSC35032  Lomatium utriculatum Thomas W. Nelson, James Nelson 1975-5-24 1858 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS14166  Lomatium utriculatum Lincoln Constance 1934-5-29 718 Humboldt Bull Creek Region, S. Fork Eel R., Upper Look Prairie 365 Comment
  JEPS12869  Lonicera ciliosa Joseph P. Tracy 1921-10-16 5876 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mountain 944 Comment
  RSA46852  Lonicera hispidula var. vacillans Doris K. Kildale 1927-6-28 3608 Humboldt Mad River, Warren Creek Junction. Comment
  UC1125245  Lonicera hispidula var. vacillans H. L. Person 1932-7-23 N.w.S 16 Humboldt road e Korbel; Eureka Quadrangle Comment
  UC1239553  Lonicera hispidula var. vacillans Joseph P. Tracy 1923-10-14 6572 Humboldt 5 mi n Blocksburg; Larrabee Creek 457 Comment
  UC602569  Lonicera hispidula var. vacillans Joseph P. Tracy 1928-7-1 8479 Humboldt Willow Creek Trinity River Valley 152 Comment
  CHSC11388  Lonicera involucrata var. ledebourii Lowell Ahart 1968-5-31 Humboldt Patrick's Point State Park. 30 Comment
  HSC3931  Lonicera involucrata var. ledebourii D. E. Anderson 1961-9-13 1806 Humboldt Big Lagoon County Park Comment
  RSA455682  Lonicera involucrata var. ledebourii E. A. Purer 1932-7-27 15978 Humboldt Near Samoa. Comment
  UC1128989  Lotus aboriginus A. E. Wieslander 1931-5-21 212 Humboldt Kneeland China Flat Quad. Comment
  UC162836  Lotus aboriginus J. P. Tracy 1905-9-3 2389 Humboldt immediate vicinity Eureka 0 Comment
  HSC98124  Lotus corniculatus Cara Witte 2007-6-28 386 Humboldt Forest Service Road 5N10. Approximately 1/2 mile east of intersection with 5N10D. 1426 Comment
  UC1223406  Lotus denticulatus Joseph P. Tracy 1933-6-25 12625 Humboldt 3 mi above Eel River Bar junction of the South Fork (Eel River Bar at Camp Grant); Eel River Bar Comment
  UC1052471  Lotus formosissimus H. E. and S. T. Parks Jun 1952 24449 Humboldt Spruce Cove Trinidad 60 Comment
  UC1197316  Lotus formosissimus Joseph P. Tracy 1927-4-24 7945 Humboldt near Fortuna; Northern Coast Ranges 60 Comment
  RSA90323  Lotus humistratus F. W. Peirson 1926-7-13 7047 Humboldt Mad River, vicinity of Blue Lake. 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
  UC1223422  Lotus pinnatus Joseph P. Tracy 1937-7-3 15375 Humboldt opposite Willow Creek; Trinity River Valley Comment
  SEINET12154263  Lotus purshianus L. K. Henry 1971-1 s.n. Humboldt along rt 36, 2miE of Dinsmore in Six Rivers National Forest Comment
  UC1129022  Lotus purshianus var. purshianus H. L. Person 1932-7-18 Humboldt Freshwater Eureka Quad. Comment
  UC1223416  Lotus purshianus var. purshianus Joseph P. Tracy 1938-7-7 16031 Humboldt Cold Springs Grouse Mountain 1524 Comment
  UC1197306  Lotus wrangelianus Joseph P. Tracy 1931-6-14 9578 Humboldt Alton, along Van Duzen River North Coast Ranges, Van Duzen River 30 Comment
  JEPS43859  Ludwigia palustris Jos. P. Tracy 1926-8-12 7765 Humboldt near the S. Fork Trinity R. Valley 182 Comment
  UC1196934  Ludwigia palustris Joseph P. Tracy 1923-6-27 6383 Humboldt shore of Lack Pond (opposite mouth of Willow Creek); Northern Coast Ranges, Trinity R. Valley, Lack Pond 182 Comment
  JEPS82250  Luina hypoleuca Roger Raiche 1983-7-19 30536 Humboldt w side Saddle Mt. (King Mt. Trail Road); King Mt. Range, Saddle Mt. 853 Comment
  CAS-BOT-BC201191  Lupinus Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC201188  Lupinus Doris Kildale Gillespie 1931-6-7 10637 Humboldt South Fork Mt., Black Lookout 1726 Comment
  RSA89561  Lupinus Philip A. Munz 1954-7-23 19861 Humboldt Road from Dinsmore to Mad River, near Humboldt-Trinity county line. 762 Comment
  UC1925864  Lupinus Kay H. Beach 1940-5-5 479 Humboldt along north coast, N of Eureka. Comment
  UC1223277  Lupinus adsurgens Joseph P. Tracy 1933-7-26 12912 Humboldt Grouse Mountain, top of mountain 1630 Comment
  UC659305  Lupinus adsurgens Charles Piper Smith 1929-7-13 4407 Humboldt top of w slope Blake Lookout, South Fork Mountain (So. Fork Mtn.); Trinity Forest, South Fork Mountain Comment
  HSC98526  Lupinus albicaulis Cara Witte 2007-6-4 182 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC99728  Lupinus albicaulis M. A. Baker 1979-6-7 797 Humboldt Along road to Telescope Peak next to stream between Telescope Peak and Snow Mtn. 915 Comment
  SEINET12154344  Lupinus albicaulis J. P. Tracy 1950-1 18968 Humboldt Happy Camp Mtn. Trinity SUmmit Rnage, 6miNE of Hawkins Bar. E of Grove's Prairie 1524 Comment
  HSC32313  Lupinus albifrons var. flumineus D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5659 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC14772  Lupinus arboreus R. I. Bonn 1965-5-9 43 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC14775  Lupinus arboreus J. W. Johnson 1961-9-3 1078 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  SD39025  Lupinus arboreus Edith A. Purer 1932-7-30 4682 Humboldt South of Orick, sand dunes Comment
  UC1129356  Lupinus arboreus G. T. Nordstrom Jul 1937 1441 Humboldt 1.5 mi sw Orick; Orick Quad. 152 Comment
  SEINET10488462  Lupinus arboreus Charles R. Gunn 1963-6-2 Gunn 2697 Humboldt Vacant lot n of trinidad school. 3 Plants. 5-6 Ft tall Comment
  BLMAR809  Lupinus bicolor Madeleine Hassett 2017-6-7 809 Humboldt King range, Dune next to Mattole Campground (Petrolia) 0 Comment
  HSC73959  Lupinus bicolor Gail Newton 1980-6-7 131 Humboldt Near Brush Mtn. 1128 Comment
  UC15950  Lupinus bicolor Harley P. Chandler May, 1901 1146 Humboldt Humboldt Bay; Humboldt Bay, North Coast Ranges 3 Comment
  SEINET10841279  Lupinus elmeri Charles Piper Smith 1947-7-14 Smith 47668 Humboldt Blake lookout rd., S fork mountain, 0.3 mi. N of hyampom trail sign. Comment
  HSC102056  Lupinus latifolius M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 961 Humboldt Patterson Meadows 1555 Comment
  HSC58662  Lupinus latifolius subsp. viridifolius G. L. Clifton, Griswold 1979-8-1 11995 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  POM10720  Lupinus latifolius subsp. viridifolius H. P. Chandler 1901-06 13658 Humboldt Klamath River. 152 Comment
  UC1223288  Lupinus latifolius var. latifolius Joseph P. Tracy 1936-7-5 15036 Humboldt top Grouse Mountain; top of Grouse Mountain 1524 Comment
  UC1223291  Lupinus latifolius var. latifolius Joseph P. Tracy 1941-6-15 16916 Humboldt on the Bull Creek - Mattole Road Panther Gap (Panther Gap) Comment
  UC1223262  Lupinus lepidus var. lobbii Joseph P. Tracy 1933-7-25 12874 Humboldt Grouse Mountain, near Clear Lake 1524 Comment
  UCD107971  Lupinus littoralis Linda M. Barker 1976-7-5 1642 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SDSU4988  Lupinus littoralis D. F. Howe 1962-5-22 3259 Humboldt 0.5 miles north of Orick on #101. 30 Comment
  UC161546 Image available Lupinus microcarpus Joseph P. Tracy 1911-7-4 3280 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River, Willow Creek; Willow Creek, Humboldt Co. 152 Comment
  SJSU10768  Lupinus nanus R. D. Spadoni 1965-5-1 95 Humboldt c. 20 mi SE of Bridgeville on State Rte 36 Comment
  UC503007  Lupinus nanus Joseph P. Tracy 1932-5-10 9946 Humboldt Petrolia; Northern Coast Ranges, Mattole Valley 60 Comment
  POM92971  Lupinus polyphyllus subsp. polyphyllus L. R. Abrams 1922-6-25 8251 Humboldt Arcata Comment
  UC180177  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1914-7-4 4542 Humboldt High Prairie; on Bald Mountain Bald Mountain; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC89503  Lupinus rivularis M. Roantree 1985-5-30 76 Humboldt E side of Trinidad Head along dirt road Comment
  UCD109516  Lupinus rivularis P. B. Kennedy 1929-6-12 s.n. Humboldt Around Eureka. Comment
  HSC58361  Lupinus tracyi G. L. Clifton, Griswold 1979-7-26 10194 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC66275  Lupinus tracyi M. A. Baker 1980-7-19 2987 Humboldt Near Bret Hole 106 Comment
  SEINET3069359 Image available Lupinus tracyi J. P. Tracy 1932-7-15 10598 Humboldt on ridges east on Corral Prairie, Trinity Summit Comment
  HSC102922  Luzula M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1001 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC58244  Luzula comosa G. L. Clifton, Griswold 1979-8-2 12415 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC83992  Luzula parviflora L. P. Janeway 1983-5-1 253 Humboldt Along dirt rd. E of HSU water tank 61 Comment
  UC1152089  Luzula parviflora Joseph P. Tracy 1951-6-26 19545 Humboldt woods at Snow Camp; woods at Snow Camp Comment
  HSC102061  Luzula parviflora subsp. parviflora M. R. Mesler, Robin Bencie, K. A. Wayman 2011-7-12 1162 Humboldt Patterson Meadows 1566 Comment
  UC1133756  Luzula subsessilis H. L. Person 1932-5-11 19424 Humboldt Korbel Eureka Quad., Korbel Comment
  HSC3241  Lysichiton americanus D. E. Anderson 1962-2-10 1912 Humboldt Intersection of Clam Beach Rd. and Dows Prairie Rd. Comment
  JEPS46466  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt Fields Ld'g Comment
  UC176174  Lysichiton americanus Joseph P. Tracy 1913-3-30 4029 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  SEINET11261198  Lythrum hyssopifolia Rick Lundquist 1979-5-18 100 Humboldt Arcata South Quadrangle. South G Street ca 1 mile south of Samoa Boulevard.; 0 0 Comment
  UC524124  Lythrum hyssopifolia Ira L. Wiggins 1932-7-19 5889 Humboldt about 8 mi n of Arcata (near Clam Beach) Comment
  HSC1797  Lythrum hyssopifolia William J. Ferlatte, B. D. Rogers 1966-8-15 3132 Humboldt North Bank Rd., 2 mi. N of Arcata Comment
  RSA0015876  Lythrum hyssopifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9203 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC100370  Lythrum salicaria L. D. Hoover 1996-4-29 Humboldt Along Hwy. 36, private property (Simmons). Comment
  CAS-BOT-BC343019  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  CAS-BOT-BC343022  Madia gracilis Ira L. Wiggins 1930-7-11 4679 Humboldt Near Samoa Comment
  HSC67886  Madia gracilis J. P. Smith 1973-5-26 6868 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  OBI36372  Madia gracilis David J. Keil 1983-7-1 17268 Humboldt Ca. 13 mi W of jctn US 101 along Bull Crk Flats rd Comment
  CAS-BOT-BC343023  Madia gracilis J. Clausen 1932-9-19 692 Humboldt Weott Comment
  HSC39774  Madia sativa Peter Sorensen 1976-7-11 Humboldt Woodley Island Comment
  HSC40379  Madia sativa Linda M. Barker 1976-6-14 1592 Humboldt 3 mi. W of Arcata Comment
  HSC40133  Madia sativa Thomas W. Nelson 1976-8-10 3167 Humboldt Beside Hwy. 101 at the turnoff to Sunnybrae Comment
  HSC45075  Madia sativa R. Sutherland 1976-8-6 8 .6876 Humboldt 229 Comment
  HSC81706  Madia sativa Thomas W. Nelson 1980-8-12 6239 Humboldt Logging roads S of Lundbar Hills 61 Comment
  RSA46904  Mahonia nervosa Doris K. Kildale 1926-12-26 2882 Humboldt Kneeland, near water trough. Comment
  HSC22058  Maianthemum dilatatum D. R. Becker 1966-5-7 47 Humboldt By Eureka Municipal Golf Course, 0.5 mi. E of F and Alder Sts. 9 Comment
  HSC58079  Maianthemum racemosum subsp. amplexicaule G. L. Clifton, Griswold 1979-8-1 11983 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC58176  Maianthemum racemosum subsp. amplexicaule G. L. Clifton, Griswold 1979-8-2 12258 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC40874  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson 1976-7-9 3005 Humboldt S of Mt. lassic 1707 Comment
  HSC48751  Maianthemum stellatum Brad Klipfel 1973-6-10 77 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC98156  Maianthemum stellatum W. D. Stevens 1964-5-16 9 Humboldt 1.0 mi. N of Kneeland School Comment
  HSC18696  Malus fusca W. R. Brigham 1962-5-19 10 Humboldt S of Big Lagoon. Comment
  HSC7028  Marah oregana J. W. Johnson 1962-3-31 1412 Humboldt Arcata, along the Lanphere Lane near the swamp, Samoa Peninsula Comment
  HSC7030  Marah oregana S. J. Hawks 1965-4-6 17 Humboldt Luffenholtz Beach Comment
  HSC45610  Matricaria discoidea Diane L. Reed 1978-5-7 70 Humboldt E fork of Willow Creek, 34 mi. from Hwy. 101 on Hwy. 299 Comment
  HSC79362  Matricaria discoidea Kenneth Clark 1981-5-2 1360 Humboldt Point Delgada, Mario's Marina 15 Comment
  UC1197424  Medicago lupulina Joseph P. Tracy 1911-7-10 3493 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC37910  Medicago polymorpha Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  UC16095  Medicago polymorpha J. Burtt Davy 1899-6-15 5531 Humboldt around Scotia; North Coast Ranges Comment
  UC162858  Medicago polymorpha J. P. Tracy 1910-6-25 3156 Humboldt Immediate vicinity of Eureka 0 Comment
  RSA249711  Medicago polymorpha Robert F. Thorne 35258 Humboldt N edge of Eureka, E of Hwy. 101. 5 Comment
  UC526914  Melica californica Joseph P. Tracy 1927-5-14 7999 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UCD87340  Melica geyeri A. H. Murphy 1947-5-15 s.n. Humboldt Smith Ranch at Sherman Flat, ca. 3.5 miles north of Blocksburg. Comment
  UCD87341  Melica geyeri Al Murphy 1949-6-1 s.n. Humboldt Perry Ranch. Comment
  UC188816  Melica subulata Jos. Burtt Davy and W. C. Blasdale 1899-6-22 5822 b Humboldt Trinity Summit Comment
  UCD88654  Melica subulata A. H. Murphy 1951-6-25 67 Humboldt Snow Camp Meadow. 8 miles e.n.e of Kneeland. Comment
  UCD88684  Melica subulata H. S. Yates 1936-6-23 5878 Humboldt 4 miles NNE of Cathey's Peak. Comment
  HSC28183  Melilotus albus Richard Curtis 1973-9-28 27 Humboldt Along R.R. tracks near mouth of Nanning Cr., across Eel River from Rio Dell Comment
  UC1225834 Image available Mentha aquatica Joseph P. Tracy 1943-11-14 17451 Humboldt 2 mi s Field's Landing (along edges of foothills); s of Field's Landing 6 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
  UC577379  Mentha canadensis Joseph P. Tracy 1924-8-31 6854 Humboldt Klamath River at mouth of Bluff Cr.; Klamath River at mouth Bluff Cr. 91 Comment
  RSA152288  Mentha pulegium Joseph P. Tracy 1946-8-25 17642 Humboldt Grizzly Bluff; along Eel River Comment
  HSC102515  Micranthes nidifica M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1501 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC1199341  Micropus californicus var. californicus Joseph P. Tracy 1925-5-31 7052 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC1223189  Micropus californicus var. californicus Joseph P. Tracy 1942-6-15 17150 Humboldt 1/2 mi ne Garberville (on the road to Harris) Comment
  HSC102916  Microseris M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1087 Humboldt Patterson Meadows 1555 Comment
  UC164795  Microseris acuminata Joseph P. Tracy 1903-5-23 1891 Humboldt Alder Point Northern Coast Ranges 152 Comment
  HSC32274  Microseris nutans D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5628 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC102528  Microsteris gracilis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1515 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC582607  Mimulus alsinoides Joseph P. Tracy 1925-6-7 7062 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  JEPS17993  Mimulus aurantiacus var. aurantiacus George B. Rossbach 1955-6-10 504 Humboldt 2 mi n Stephens Redwood Grove (Route 101); South Fork of Eel River Comment
  UC677720  Mimulus aurantiacus var. aurantiacus C. C. and S. K. Harris 1936-6-9 681 Humboldt above Carlotta 60 Comment
  UC1011928  Mimulus aurantiacus var. aurantiacus Francis W. Pennell 1940-7-8 26109 Humboldt above beach s Trinidad; Route 101 30 Comment
  HSC102505  Mimulus breweri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1490 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC37232  Mimulus cardinalis Lon Hall 1975-6-20 404 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  HSC20710  Mimulus dentatus R. C. Wunner 1962-5-21 Humboldt Redwood Creek, 50 yds. from trail to HSC. Dorm on road to reservoir Comment
  HSC20711  Mimulus dentatus P. Markle 1962-5-16 34 Humboldt Along road to City of Arcata reservoir Comment
  UC1196792  Mimulus douglasii Joseph P. Tracy 1927-4-10 7892 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  SEINET10570226  Mimulus floribundus Charlene A. Bennett 1976-8-6 Bennett 484 Humboldt Collected by hwy 101, n side of orick. Rocky area, densely forested by river. Comment
  HSC97545  Mimulus guttatus Ivy Watson 2008-9-28 31 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  UC582703  Mimulus guttatus Joseph P. Tracy 1935-5-25 13859 Humboldt Fort Seward 106 Comment
  UCR45415  Mimulus guttatus Kenneth Clark 1980-5-10 659 Humboldt Western Beach, Point Delgada 15 Comment
  HSC20730  Mimulus guttatus J. R. Kahl 1962-5-11 28 Humboldt 2 mi. S of Trinidad along Hyw. 101 Comment
  HSC20731  Mimulus guttatus J. E. Lankila 1962-5-14 24 Humboldt W bank of river at Fernbridge 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
  RSA46855  Mimulus guttatus Doris K. Kildale 1927-6-25 3566 Humboldt Between Horn and Shelter Cove. Comment
  HSC60082  Mimulus kelloggii M. A. Baker 1978-5-6 500 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC103776  Mimulus kelloggii Harley P. Chandler June 1901 1480 Humboldt Klamath River North Coast Ranges 426 Comment
  UC41888  Mimulus kelloggii C. C. Marshall 1888-1 Humboldt Comment
  UC1222804  Mimulus layneae Joseph P. Tracy 1950-7-1 18955 Humboldt Friday Ridge 1219 Comment
  HSC99591  Mimulus moschatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 260 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  HSC40019  Mimulus nanus var. nanus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2911 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  UC582706  Mimulus nasutus Joseph P. Tracy 1927-3-27 7850 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC25985  Mimulus pilosus Thomas W. Nelson 1970-9-3 226 Humboldt Mad River. Comment
  HSC20790  Mimulus pilosus David Adams 1960-8-20 Humboldt Eel River; Whitlow (Sequoia) 56 Comment
  UC582498  Mimulus primuloides subsp. primuloides Joseph P. Tracy 1932-7-14 10534 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC4087  Minuartia nuttallii subsp. gregaria D. E. Anderson 1965-6-1 3763 Humboldt Horse Mountain, W facing slope 1220 Comment
  CHSC115049  Mitella caulescens Stephanie Puentes 2008-6-19 09120 Humboldt 1.5 miles west of Lake Prairie on the southwest facing bank of Maple Creek. 670 Comment
  HSC56219  Mitella caulescens G. L. Clifton, Griswold 1979-8-2 12242 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  POM117236  Mitella ovalis Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1198862  Mitella ovalis Joseph P. Tracy 1918-6-16 4956 Humboldt Eureka Northern Coast Region 0 Comment
  HSC102031  Mitella trifida M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 933 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC74371  Moehringia macrophylla M. A. Baker 1980-6-16 1950 Humboldt Near Onion Mtn. 1280 Comment
  HSC97492  Moehringia macrophylla Cara Witte 2007-5-23 112 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1635 Comment
  HSC73647  Monardella odoratissima subsp. pallida M. A. Baker 1980-7-23 3154 Humboldt Near Orleans Mtn. 1859 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
  JEPS63387  Monardella purpurea Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 1310 Comment
  JEPS62412  Monardella villosa subsp. villosa W. L. Jepson 1932-8-8 16483 Humboldt Grasshopper Peak 1066 Comment
  CAS-BOT-BC444804  Montia diffusa Harley P. Chandler 1901-5-1 1271 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  CAS-BOT-BC444800  Montia diffusa Don Hagar 1957-6-6 59 Humboldt Brush Mountain, ca. 4 miles southwest of Willow Creek 853 Comment
  SEINET3025745  Montia linearis Joseph P. Tracy 1913-5-4 4067 Humboldt Kneeland Prairie 760 Comment
  UC183599  Montia linearis Joseph P. Tracy 1913-6-14 4134 Humboldt in valley of Van Duzen River (Dinsmore's Ranch, opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC40948  Morella californica Linda M. Barker 1976-6-1 1542 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC89420  Morella californica P. A. Daly 1986-1-4 37 Humboldt Trinidad Head 61 Comment
  HSC90188  Morella californica Jean Hanson 1980-4-12 52 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  CAS-BOT-BC260574  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  SEINET200835 Image available Muhlenbergia filiformis Joseph P. Tracy 1919-9-18 5233 Humboldt Trinity Summit 1829 Comment
  UCD86805  Muhlenbergia mexicana Joseph P. Tracy 1921-9-4 5957 Humboldt Trinity River Valley. Along Trinity River, at mouth of South Fork. 152 Comment
  CAS-BOT-BC101663  Myrica californica Harley P. Chandler 1901-5-1 1168 Humboldt Humboldt Bay 30 Comment
  JEPS30071  Myrica californica Joseph P. Tracy 1930-5-18 8698 Humboldt Rohnerville Golf Course Northern Coast Ranges, Rohnerville Golf Course 152 Comment
  HSC45289  Navarretia capillaris Brad Klipfel 1973-6-10 293 Humboldt E face of Grogan's Hole, N Trinity Mtn. area Comment
  HSC17129  Navarretia divaricata H. E. Parks 1939-6-27 5257 Humboldt Grouse Mtn. Comment
  UC908378  Navarretia divaricata subsp. vividior Joseph P. Tracy Jul 16 1930-Jul 19 1930 9065 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1198603  Navarretia intertexta Joseph P. Tracy 1906-7-4 2525 Humboldt near Carlotta (near Hydesville); Northern Coast Region 60 Comment
  UC907815  Navarretia leucocephala subsp. minima Joseph P. Tracy 1928-6-24 8476 Humboldt between Middle and North Yager Creeks (East Ranch) 762 Comment
  UC909128  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  RSA15549  Navarretia mellita C. B. Wolf 1927-8-30 1250 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  UC198634  Navarretia pubescens Joseph P. Tracy 1916-6-20 4733 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC1239737  Nemophila menziesii Joseph P. Tracy 1938-6-13 15919 Humboldt at Cold Springs , at Cold Springs (Grouse Mountain) 1432 Comment
  SBBG6129  Nemophila menziesii var. atomaria H. and M. Dearing 1939-4-24 3424 Humboldt near Dyerville Comment
  UC1103811  Nemophila menziesii var. atomaria Joseph P. Tracy 1922-5-29 6065 Humboldt South Yager Creek Valley Northern Coast Ranges, South Yager Creek Valley 762 Comment
  HSC13578  Nemophila menziesii var. atomaria D. E. Anderson 1962-3-4 1927 Humboldt About 2 mi. S of Trinidad Comment
  UC1239748  Nemophila parviflora Joseph P. Tracy 1914-6-14 4510 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UC198657  Nemophila pedunculata Joseph P. Tracy 1917-4-29 4779 Humboldt Eureka Northern Coast Ranges, at Eureka 0 Comment
  CAS-BOT-BC60563  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
  HSC37350  Notholithocarpus densiflorus var. densiflorus Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 483 Humboldt Along Lost Man Creek. 38 Comment
  HSC49510  Nuphar polysepala R. York 1979-4-16 263 Humboldt Along Hwy. 101 across from Clam Beach between Westhaven and McKinleyville 0 Comment
  HSC37911  Nuttallanthus texanus Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC59483  Nuttallanthus texanus M. A. Ericksen 1979-4-29 242 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  CAS-BOT-BC142292  Oemleria cerasiformis Doris K. Kildale; J. W. Gillespie 1929-6-25 8391 Humboldt Pine's Pasture, Eureka 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
  UC642332  Oenanthe sarmentosa Joseph P. Tracy 1927-9-25 8376 Humboldt at Eureka Eureka 6 Comment
  CHSC70155  Oenothera glazioviana David K. Imper 1983-7-1 Humboldt Eureka. Weedlot on 6th Street. 15 Comment
  UC1007123  Oenothera glazioviana P. A. Munz 1936-8-13 14384 Humboldt 7 mi e Arcata Comment
  CHSC70028  Oenothera wolfii David K. Imper 1988-8-15 Humboldt Hoopa Square, just n of junction Hwy 299 and Big Hill Rd., E side of 299, S of Sawdust Burner. Roadside. 152 Comment
  UC146162  Olsynium douglasii var. douglasii E. Ethel Tracy 1905-5-1 Humboldt Harris Northern Coast Ranges 609 Comment
  HSC104397  Orobanche californica subsp. californica K. A. Wayman 2016-6-24 Humboldt Big Lagoon Spit, 1.5 mi. N of Big Lagoon County Park parking lot Comment
  UC585980  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1935-7-28 14321 Humboldt Head of Devil's Hole. Trinity Summit. Comment
  HSC54740  Orthilia secunda G. L. Clifton, Griswold 1979-7-26 10203 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  HSC99519  Orthilia secunda K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 182 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC56315  Orthilia secunda Joseph Burtt Davy Jun 21-23 1899 5751 Humboldt Trinity Summit Comment
  CAS-BOT-BC458028  Orthilia secunda Doris K. Kildale 1925-8-16 1155 Humboldt Trinity Summit Trail near forks of Tish-Tang-i-tang Comment
  RSA0006077  Orthocarpus castillejoides var. humboldtiensis Philip A. Munz 1925-6-20 9890 Humboldt Eureka. Comment
  UCD20405  Orthocarpus imbricatus Donald C. Hagar 1957-8-6 207 Humboldt 10 miles ENE of Hoopa, Jackson Hole. 1645 Comment
  POM147450  Orthocarpus purpurascens var. latifolius Joseph P. Tracy 1925-8-14 7230 Humboldt Near Samoa, on Humboldt Bay. Comment
  RSA246669  Orthocarpus purpurascens var. latifolius Robert F. Thorne, Percy C. Everett 1965-8-7 35219 Humboldt Samoa Peninsula. 3 Comment
  HSC56239  Osmorhiza berteroi Overton 1979-8-1 12330 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  UC162920  Osmorhiza berteroi Joseph P. Tracy 1911-7-5 3322 Humboldt along Willow Creek near mouth (creek is a tributary of Trinity River)); Northern Coast Ranges 304 Comment
  UC642259  Osmorhiza occidentalis Joseph P. Tracy 1935-7-24 14189 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  HSC21587  Osmorhiza purpurea R. D. Zortman 1963-5-12 39 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  RSA245261  Oxalis corniculata R. A. Vanbianchi 1971-11-5 92 Humboldt Humbolt State College campus. SouthWest corner theatre arts building. Comment
  HSC59195  Oxalis oregana Terry Roth 1979-5-20 59 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  SBBG25583  Oxalis oregana E. R. Blakley 1966-8-17 6794 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  UC502973  Oxalis pes-caprae Joseph P. Tracy 1927-3-23 7845 Humboldt Eureka Northern Coast Ranges Comment
  SEINET516268  Oxalis pes-caprae Vernon H. Oswald 1998-4-16 8917 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. Comment
  UC302046  Oxalis trilliifolia Joseph P. Tracy 1926-5-22 7499 Humboldt Prairie Creek Northern Coast Ranges Comment
  UC39270  Panicum acuminatum var. acuminatum Harley P. Chandler June, 1901 1513 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UCD88713  Panicum acuminatum var. fasciculatum A. H. Murphy 1948-9-14 Humboldt K-weed beetle field; Toby and Prior Ranch, south of Blocksburg. Comment
  CDA2139  Parapholis incurva Gordon Leppig, Sylvia Leppig 2000-5-29 1385 Humboldt Trinidad Harbor, Trinidad. Comment
  UC1222793  Parentucellia viscosa Joseph P. Tracy 1950-6-8 18759 Humboldt leading from the coast toward Petrolia; Domingo Hill Comment
  UC526851  Paspalum distichum Joseph P. Tracy 1934-8-14 13581 Humboldt South Fork of Eel River, 1 mi above its mouth 60 Comment
  UC642347  Pastinaca sativa Joseph P. Tracy 1937-10-31 15694 Humboldt Rio Dell 30 Comment
  HSC56164  Pedicularis attollens G. L. Clifton, Terry Griswold 1979-8-1 12048 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC102174  Pedicularis racemosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1086 Humboldt Patterson Meadows 1566 Comment
  RSA20777  Pedicularis racemosa Carl B. Wolf 1937-8-13 9241 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New Road towards Trinity summit. 1220 Comment
  HSC74031  Pellaea brachyptera Gail Newton 1980-7-22 1674 Humboldt Near Devils Backbone 1554 Comment
  UC211497  Pellaea brachyptera Chesnut and Drew 1888-7-21 Humboldt Pilot Ridge Comment
  HSC56260  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-8-2 12416 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC40011  Penstemon anguineus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2907 Humboldt E side of Red Lassic, beside FS Rd. 1S07 1677 Comment
  NY609835  Penstemon deustus var. suffrutescens J. P. Tracy 1935-7-28 14327 Humboldt Trinity Summit, head of Devil's Hole 1828.8 Comment
  RSA420427  Penstemon newberryi subsp. berryi Thekla Mohr s.n. Humboldt Eel River. Humboldt and Mendocino Cos. Comment
  HSC39394  Penstemon purpusii D. E. Anderson, J. P. Smith 1971-7-6 - 1279 Humboldt Horse Mtn. Comment
  JEPS26255  Penstemon rattanii Arthur E. Connick 1925-6-1 Humboldt hills near Stone Lagoon; hills near Stone Lagoon 60 Comment
  RSA0066316  Pentagramma triangularis Lyman Benson 1928-7-12 472 Humboldt Weott Ranger Station. Seaward N Coast Range, S Fork Eel River watershed. 61 Comment
  RSA0094697  Pentagramma triangularis A. Davidson 1923-8-11 17064 Humboldt Near Scotia. Comment
  UC1197322  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1913-9-7 4390 Humboldt Eureka Northern Coast Region 0 Comment
  UC1197122  Perideridia howellii Joseph P. Tracy 1935-5-25 13854 Humboldt Fort Seward 106 Comment
  HSC102106  Perideridia oregana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1009 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CHSC116958  Petasites frigidus var. palmatus Matthew Forster 2013-4-7 Humboldt Along trail adjacent to Trinidad State Beach, Coastal Bluffs. 47 Comment
  HSC13622  Phacelia bolanderi D. E. Anderson 1963-5-25 2471 Humboldt About 1 mi. W of Fernbridge along Rd. to Ferndale Comment
  UCR15551  Phacelia bolanderi George K. Helmkamp 1978-7-15 s.n. Humboldt Prairie Creek Redwoods State Park 305 Comment
  HSC70694  Phacelia corymbosa Gail Newton 1980-7-15 1559 Humboldt Near Sims Mtn. 1311 Comment
  HSC58319  Phacelia mutabilis Overton, Butler 1979-8-2 12609 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC58339  Phacelia mutabilis Overton, Butler 1979-8-2 12654 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  BLMAR159  Phacelia nemoralis subsp. nemoralis Donald Hazlett 1994-6-7 159 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC13670  Phacelia nemoralis subsp. oregonensis D. E. Anderson 1963-3-16 2391 Humboldt Scotia Bluffs Comment
  UC1199109  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3624 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC666591  Phacelia nemoralis subsp. oregonensis W. S. Boyle 1942-5-9 1086 Humboldt within 50 yd Redwood Highway, #101 (overlooking South Fork of the Eel River, 1 mi from n boundary of Mendocino Co.) Comment
  UC562576  Phacelia procera Joseph P. Tracy 1932-7-12 10431 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC10560  Phalaris californica J. P. Tracy 1925-6-7 7085 Humboldt Lord-Ellis Rd on Bald Mtn. Comment
  RSA167286  Phalaris californica Joseph P. Tracy 1951-6-26 19599 Humboldt on Butter Valley Road, about 2 miles east of junction of Kneeland Prairie Road Comment
  UC1152048  Phalaris minor Joseph P. Tracy 1951-6-21 19519 Humboldt Hydesville Comment
  UC666825  Philadelphus lewisii Joseph P. Tracy 1937-6-20 15355 Humboldt ten mi up stream from mouth; Bear River 152 Comment
  RSA0046930  Philadelphus lewisii Doris K. Kildale 1927-7-3 s.n. Humboldt Willow Creek Flat. Comment
  UC184008  Phleum alpinum Joseph P. Tracy 1912-7-31 3908 Humboldt on nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope of Buck Mountain 1066 Comment
  CAS-BOT-BC250883  Phleum pratense Doris K. Kildale 1926-6-27 2202 Humboldt Laribee Valley 701 Comment
  HSC58632  Phleum pratense Gilbert Muth 1979-7-31 11490 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  CAS-BOT-BC250882  Phleum pratense Doris K. Kildale 1925-8-21 1309 Humboldt Head of Yager Creek 914 Comment
  HSC35709  Phlox adsurgens Thomas W. Nelson, B. Reinhardt 1975-7-30 2092 Humboldt Grouse Creek side of Last Chance Ridge. Comment
  HSC45583  Phlox diffusa Diane L. Reed 1978-5-27 123 Humboldt Horse Mtn., Titlow Hill Rd., 3.4 mi. from junction with S.R. 299 Comment
  UC1191121  Phlox douglasii subsp. rigida Joseph P. Tracy 1932-7-18 10699 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  JEPS71126  Phlox gracilis Joseph P. Tracy 1933-7-11 12699 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1198562  Phlox gracilis Joseph P. Tracy 1906-5-6 2447 Humboldt near Hydesville (hillside of Wolverton Gulch); Northern Coast Region, Wolverton Gulch 60 Comment
  JEPS42597  Phoradendron villosum Lincoln Constance 1934-5-29 737 Humboldt Bull Creek Region, S. Fork Eel R., Upper Look Prairie 365 Comment
  UC1103511  Phyllospadix torreyi Joseph P. Tracy 1917-5-30 4812 Humboldt ocean beach opposite Dows Prairie (probably derived from rocky shores n of Little River); Northern Coast Ranges Comment
  UCSB2830  Physocarpus capitatus Phillips, Priscilla 1958-6-9 Humboldt Biship Pina Lodge, 2 mi. n. of Trinidad Comment
  CAS-BOT-BC73443  Picea sitchensis Doris K. Kildale 1927-5-14 3201 Humboldt Big Lagoon Comment
  RSA246848  Picea sitchensis Robert F. Thorne, P. Everett 1965-8-7 35200 Humboldt Big Lagoon, south end. 2 Comment
  UC1585368  Picea sitchensis R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 53 Humboldt 0.5 km s Hwy 255 (on New Navy base Rd, w of Eureka); North Split of Samoa Peninsula Comment
  UCR48598  Picris echioides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 12 Humboldt Loleta, along Cannibal Road 8 Comment
  CAS-BOT-BC78290  Pinus attenuata Carl B. Wolf 1937-8-13 9240 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  CAS-BOT-BC78373  Pinus contorta H. E. Parks 1931-5-1 s.n. Humboldt Samoa, Pine Barrens Comment
  RSA246942  Pinus contorta var. contorta Robert F. Thorne, P. Everett 1965-8-7 35217 b Humboldt Samoa Peninsula. 3 Comment
  UC212990  Pinus monticola Mrs. F. A. Graham 1919-8-1 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC1204918  Pinus muricata unknown July, 1935 Humboldt 1/2 mi or so back from ocean; Moonstone Beach settlement 60 Comment
  HSC44053  Pinus ponderosa Thomas W. Nelson, Jane P. Nelson 1977-4-23 3344 Humboldt Tributary to Blanket Creek 1463 Comment
  UC1488745  Piperia elegans J. D. Ackerman 1974-8-13 405 Humboldt ca 2 mi n Manila (between sand dunes and Mad River Slough) Comment
  UC1196432  Piperia elongata Joseph P. Tracy 1925-8-9 7224 Humboldt Salmon Creek Northern Coast Ranges, South Fork of Eel River 91 Comment
  HSC102544  Piperia unalascensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1534 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1196411  Piperia unalascensis Joseph P. Tracy 1913-6-26 4346 Humboldt opposite Buck Mountain ( Dinesmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC75440  Plagiobothrys hispidulus J. O. Sawyer 1980-7-18 3594 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC552842  Plagiobothrys reticulatus Joseph P. Tracy 1935-6-2 13923 Humboldt Big Lagoon 3 Comment
  UC552845  Plagiobothrys reticulatus Joseph P. Tracy 1935-6-22 13957 Humboldt Holmes Flat North Coast Ranges, Holmes Flat 60 Comment
  JEPS60990  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1912-6-9 3680 Humboldt Alton Northern Coast Region 30 Comment
  HSC37930  Plantago lanceolata Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC32428  Plantago lanceolata Linda M. Barker 1974-5-11 174 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  UC1196134  Plantago major Joseph P. Tracy 1931-9-7 9657 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC26450  Plantago maritima T. O. Osborne 1970-6-6 12 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  CHSC32936  Plantago maritima var. juncoides James Payne Smith Jr. 1970-6-7 3813 Humboldt 0.6 miles north of Luffenholtz Beach along Calif. 1 near Trinidad. Comment
  CAS-BOT-BC91639  Platystemon californicus Tom Craig 1941-6-29 s.n. Humboldt Samoa, near Eureka. Comment
  CAS-BOT-BC91645  Platystemon californicus Bolimannsou 1907-5-15 s.n. Humboldt Samoa. Comment
  HSC37931  Platystemon californicus Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  UC168964  Plectritis brachystemon Joseph P. Tracy 1909-7-31 3034 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC169079  Plectritis brachystemon Harley P. Chandler 1901-6-6 1414 Humboldt North Coast Ranges, Klamath River, Saint's Rest, (Nature's Rest) Nature's Rest; North Coast Ranges, Klamath River, Saint's Rest 304 Comment
  UC175689  Plectritis brachystemon Joseph P. Tracy 1912-6-16 3703 Humboldt near Hookton (Region about Humboldt Bay, Northern Coast Region); Northern Coast Region 0 Comment
  UC1239586  Plectritis congesta Harley P. Chandler May, 1901 1149 B Humboldt North Coast Ranges, Humboldt Bay Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  UC602505  Plectritis congesta Joseph P. Tracy 1930-6-8 8734 Humboldt Kneeland Prairie 762 Comment
  BLMAR628  Plectritis congesta subsp. brachystemon Jennifer Wheeler 2011-6-15 628 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  UC1103801  Pleuropogon refractus Joseph P. Tracy 1911-6-4 3234 Humboldt along Little River, 5 mi from the coast Little River; Northern Coast Region, Little River 121 Comment
  UCD90108  Pleuropogon refractus Joseph P. Tracy 1951-6-26 19560 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road.) Comment
  SEINET200753  Pneumonanthe oregana J. P. Tracy 1904-8-7 2139 Humboldt Immediate vicinity of Eureka. Comment
  HSC10618  Poa annua R. H. Berg 1963-3-1 5 Humboldt Arcata, Fickle Hill area. Comment
  HSC10624  Poa annua E. W. Styskel 1964-4-12 65 Humboldt Corner of Center St. and Hwy. 101 in Rio Dell. Comment
  HSC10638  Poa bolanderi J. P. Tracy 1932-7-12 10464 Humboldt Trinity Summit, head of Brett Hole. 1829 Comment
  HSC10686  Poa confinis J. P. Tracy, H. E. Parks 1927-4-24 7947 Humboldt Eureka near bay shore. 9 Comment
  HSC38919  Poa confinis Linda M. Barker 1976-4-30 1412 Humboldt 3 mi. W of Arcata Comment
  CHSC10126  Poa douglasii J. W. Johnson 1961-8-17 1028 Humboldt On a dune, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC10698  Poa douglasii J. W. Johnson 1962-6-4 1426 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  CAS-BOT-BC255850  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay 30 Comment
  UCD91813  Poa pratensis Linda M. Barker 1976-6-1 1567 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC249872  Poa pratensis subsp. pratensis Joseph P. Tracy 1923-6-3 6254 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC99014  Poa secunda subsp. juncifolia Cara Witte 2007-5-29 124 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  HSC70237  Poa secunda subsp. secunda M. A. Baker 1980-6-8 1901 Humboldt Near Buck Flat. 1554 Comment
  HSC70687  Poa secunda subsp. secunda Gail Newton 1980-7-13 1572 Humboldt Near Sims Mountain. 1311 Comment
  HSC75473  Poa secunda subsp. secunda J. O. Sawyer 1980-7-18 3620 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC98597  Poa secunda subsp. secunda Cara Witte 2007-6-4 197 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC1607861  Poa secunda subsp. secunda H. E. Parks 1926-5-9 7466 Humboldt head of South Yager Creek Comment
  UC525663  Poa secunda subsp. secunda Joseph P. Tracy 1933-7-26 12911 Humboldt Grouse Mt; North Coast Ranges 1524 Comment
  UC525666  Poa secunda subsp. secunda Joseph P. Tracy 1933-6-13 12602 Humboldt near summit Hoopa Mt (on rd from Hoopa westward to Bair's) 914 Comment
  UC180504  Poa trivialis Joseph P. Tracy 1914-7-4 4521 Humboldt near Korbel (on Bald Mt rd); Northern Coast Ranges 457 Comment
  CAS-BOT-BC244297  Podagrostis humilis Joseph P. Tracy 1935-7-27 14281 Humboldt Trinity Summit. Corral Prairie 1584 Comment
  CAS-BOT-BC244298  Podagrostis humilis Joseph P. Tracy 1930-7-16 8989 Humboldt South Fork Mountain, at McKay Camp 1676 Comment
  HSC54552  Polygala cornuta Overton, Butler 1979-7-24 9554 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC99087  Polygala cornuta var. cornuta Cara Witte 2008-7-25 927 Humboldt Horse Mountain Botanical Area. At intersection of 6N36B and Forest Service Road 6N36A. 1355 Comment
  POM48088  Polygonum convolvulus J. B. Feudge 1923-7-22 66 Humboldt At Fortuna. 15 Comment
  HSC55108  Polygonum douglasii G. L. Clifton 1979-7-31 11849 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC175841  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1912-7-31 3939 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1676 Comment
  UC1101205  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-9 1232 Humboldt Town of Blue Lake; s side Comment
  HSC37919  Polygonum paronychia Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  HSC38939  Polygonum paronychia Linda M. Barker 1976-5-13 1487 Humboldt 3 mi. W of Arcata. Comment
  UC55514  Polygonum paronychia Harley P. Chandler May, 1901 1157 Humboldt Samoa North Coast Ranges, Humboldt Bay (sandhills) 3 Comment
  UC162921  Polygonum punctatum Joseph P. Tracy 1911-7-8 3473 Humboldt Clover Flat mine Northern Coast Ranges, Valley of Trinity River (along streamlet, near mouth of Willow Creek) 152 Comment
  UC1225798  Polygonum sachalinense Joseph P. Tracy 1946-8-25 17634 Humboldt roadside 1/2 mi s mouth of Elk River 6 Comment
  HSC99028  Polygonum spergulariiforme Cara Witte 2008-7-14 895 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. 1380 Comment
  HSC1101  Polypodium californicum Paul Shields Apr 1955 Humboldt 5 mi. N of Arcata Comment
  SEINET3873589  Polypodium californicum Thomas Nelson, Jane P. Nelson 1976-2-21 2250 Humboldt Tish-Tang Campground.; 0 Comment
  HSC39942  Polypodium glycyrrhiza Linda M. Barker 1976-3-11 1328 Humboldt 3 mi. W of Arcata Comment
  HSC1109  Polypodium glycyrrhiza Gene S. Van Horn 1962-1-12 8 Humboldt 150 yards from mouth of E creek leading into the HSC reservoir 61 Comment
  HSC1137  Polypodium glycyrrhiza J. W. Johnson 1962-4-2 1421 Humboldt Lanphere lane, near the swamp, Samoa Peninsula, Arcata Comment
  CAS-BOT-BC72085  Polypodium scouleri W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  CAS-BOT-BC72087  Polypodium scouleri T. G. W. s.n. Humboldt Arcata Comment
  POM319595  Polypodium scouleri Patricia Wilder 1968-8-21 4407 Humboldt Northern coastal arm of Humboldt Bay, ca. 1 mile SW of Samoa, in sand dunes. 15 Comment
  HSC10825  Polypogon interruptus J. P. Tracy 1927-7-16 8261 Humboldt Eureka 0 Comment
  UC1103193  Polypogon interruptus Joseph P. Tracy 1927-8-7 8320 1/2 Humboldt opposite mouth of Willow Creek Lack Pond (in Trinity River Valley); Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC1145082  Polypogon interruptus Joseph P. Tracy 1936-6-8 14871 Humboldt Trinidad 9 Comment
  HSC36639  Polystichum imbricans subsp. imbricans Thomas W. Nelson, Jane Nelson, James Nelson 1975-6-14 1903 Humboldt Beside branch off Rd. 2SO8 to Pine Mtn. Comment
  RSA1504  Polystichum munitum E. R. Johnson 1929-08 1409 Humboldt Arcata Redwood Park 76 Comment
  HSC12935  Polystichum munitum C. E. Fellows 1970-11-28 339 Humboldt HSU campus, N side of Bio. Sci. Greenhouse Comment
  HSC79145  Polystichum munitum C. J. Thomas 1984-9-25 120 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  UC512087  Populus trichocarpa Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1220 Humboldt in pine barrens near the coast 1 mi n Samoa 0 Comment
  UC672879  Potamogeton foliosus Joseph P. Tracy 1934-8-14 13567 Humboldt Eel River, Alton to Fortuna Eel River 15 Comment
  UC13488  Potamogeton natans W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  HSC62984  Potamogeton natans David Wheeler 1979-4-20 Humboldt Clam Beach Ponds, .25 mi. S of Crannel Rd., between the frontage road and Hwy. 101 Comment
  HSC62830  Potentilla anserina subsp. pacifica J. M. DiTomaso 1979-4-21 883 Humboldt Clam Beach Comment
  HSC63026  Potentilla anserina subsp. pacifica J. P. Smith 1971-10-6 4937 Humboldt End of Murray Rd. in McKinleyville. Comment
  UCD113696  Potentilla anserina subsp. pacifica Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  UC1191497  Potentilla anserina subsp. pacifica Malcolm A. Nobs, S. Galen Smith 1949-8-3 1161 Humboldt 1 mi s Fields Landing; Eel River Valley, s of Fields Landing Comment
  HSC57981  Potentilla gracilis var. fastigiata G. L. Clifton, Griswold 1979-7-31 11711 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC154046  Potentilla gracilis var. gracilis Joseph P. Tracy 1908-6 2752 Humboldt nw slope Buck Mountain; Northern Coast Ranges, nw slope Buck Mountain 762 Comment
  SEINET12045060  Prosartes smithii Unknown 1933-1 3413 Humboldt Dyerville, South Fork of Eel River Comment
  UC902030  Prunella vulgaris var. lanceolata Joseph P. Tracy 1949-8-4 18421 Humboldt Mud Springs Trinity Summit; , Mud Springs 1341 Comment
  SD93030  Prunella vulgaris var. lanceolata W. Bertsch 1953-7-30 226 Humboldt Highway 101 near Dyerville. 60 Comment
  JEPS44944  Prunus emarginata Joseph P. Tracy 1917-5-6 4780 Humboldt at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC1198775  Prunus emarginata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9036 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  SEINET11917572  Prunus virginiana J. P. Tracy 1950-6-25 18881 Humboldt Burr Valley Rd, Buck Mt 1067 Comment
  HSC98946  Prunus virginiana var. demissa Cara Witte 2008-6-15 731 Humboldt Coldspring Camp. 1445 Comment
  CAS-BOT-BC357599  Pseudognaphalium stramineum Kenneth Clark 1979-6-30 455 Humboldt Shelter Cove. Dead Man's Gulch 9 Comment
  CAS-BOT-BC80115  Pseudotsuga menziesii Doris K. Kildale 1928-4-29 5969 Humboldt Horse Mountain Comment
  CAS-BOT-BC80117  Pseudotsuga menziesii Carl B. Wolf 1936-10-29 1785 Humboldt Old Coast Road 7 miles so. of Honeydew P.O. 304 Comment
  CDA1810  Pseudotsuga menziesii D. G. Kelch, D. A. Weinstein 2007-7-25 7 .51 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  UC1223167  Psilocarphus tenellus Joseph P. Tracy 1950-5-30 18713 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA475262  Pteridium aquilinum var. pubescens Lyman Benson 1928-7-9 408 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  CAS-BOT-BC421116  Pterostegia drymarioides Joseph P. Tracy 1933-5-20 12226 Humboldt Cape Mendocino. South of point of the Cape. 30 Comment
  UCR45348  Pyrola aphylla Barry Silver 1986-5-3 567 Humboldt North Coast Ranges, Forest Road 7N02 to Waterman Ridge, 7 mi from Willow Creek 976 Comment
  UC56318  Pyrola picta Joseph Burtt Davy 1899-6-11 5420 Humboldt Hubbard's Station to Elk Prairie Comment
  CAS-BOT-BC62632  Quercus chrysolepis Henry M. Pollard 1947-9-1 s.n. Humboldt Somes Mtn. near summit, Orleans region Comment
  RSA44460  Quercus chrysolepis var. nana H. M. Pollard 1947-9-1 s.n. Humboldt Somes Mt. near summit, Orleans region. Comment
  CAS-BOT-BC94306  Quercus garryana Roxana S. Ferris 1955-7-11 12973 Humboldt Summit of US Highway 299 betw. Willow Creek and Blue Lake Comment
  UC1196357  Quercus kelloggii Joseph P. Tracy 1940-10-15 16780 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC275512  Quercus kelloggii Joseph P. Tracy 1923-9-10 6543 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UCD165093  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 49.5 mi. from Garberville along Alderpoint Rd. near the intersection with Highway 36. (Coordinates and elevation estimated by label maker.) 215 Comment
  HSC55279  Quercus vacciniifolia Overton, Butler 1979-8-2 12695 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC539321  Quercus wislizeni Lois Weeth; Kerry Heise; John M. Tucker 2003-10-21 s.n. Humboldt 49.5 mi from Garberville along Alderpoint Rd near the jct with Hwy 36; stop #6 215 Comment
  CAS-BOT-BC186672  Ranunculus Mrs. H. C. Cantelow 1935-5-31 828 Humboldt 8 mi. nor. of Orick Comment
  HSC18121  Ranunculus aquatilis var. diffusus D. E. Anderson 1965-6-1 3782 Humboldt Rd. to Brush Mtn., 0.25 mi. from Hwy. 299 Comment
  UC1103010  Ranunculus flammula Joseph P. Tracy 1930-8-3 9149 Humboldt pond near Little Van Duzen River; Northern Coast Ranges, Buck Mountain 762 Comment
  RSA246723  Ranunculus flammula var. ovalis Robert F. Thorne 1965-8-9 35322 Humboldt Clam Beach County Park: along highway. 3 Comment
  UCD96220  Ranunculus muricatus Linda M. Barker 1976-4-30 1404 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC71056  Ranunculus occidentalis Thomas W. Nelson, Jane P. Nelson 1977-5-30 3390 Humboldt McKeown Ranch. Along road to Anderson's Ford. 854 Comment
  UC1542903  Ranunculus occidentalis H. E. Parks, J. P. Tracy 1930-5-25 859 Humboldt Laribee Valley 762 Comment
  JEPS55183  Ranunculus occidentalis W. L. Jepson 1902-6-20 1895 Humboldt Fort Seward Ranch Ridge Comment
  UC13974  Ranunculus occidentalis Chesnut and Drew 1888-7-9 Humboldt Campbell Comment
  HSC18172  Ranunculus occidentalis var. occidentalis J. Mustain 1963-4-27 40 Humboldt Big Lagoon Park Comment
  HSC31173  Ranunculus occidentalis var. occidentalis D. E. Anderson 1972-6-20 5748 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC183728  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3604 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CHSC35558  Ranunculus sardous Thomas Nelson; Doris Niles 1979-5-19 4696 Humboldt Mouth of Eel River at Crab Park. North of County Park. Comment
  UC1196274  Ranunculus uncinatus Joseph P. Tracy 1922-6-5 6085 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC162816  Ranunculus uncinatus J. P. Tracy 1910-5-8 3133 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC99407  Ranunculus uncinatus var. uncinatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 56 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CDA3875  Reseda luteola R. Drewry 1968-12-12 Humboldt 0.5 mile east of Casterlin. 0 Comment
  CAS-BOT-BC58194  Rhododendron columbianum Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick. Comment
  HSC7829  Rhododendron columbianum W. R. Brigham 1962-5-19 7 Humboldt S of Big Lagoon. Comment
  UC725903  Rhododendron macrophyllum A. A. Heller 1937-6-8 15898 Humboldt 3 mi n of Trinidad (at Bishop Pine Lodge); Bishop Pine Lodge Comment
  UC604616  Rhododendron occidentale Joseph P. Tracy 1938-6-16 15945 Humboldt Trinidad 60 Comment
  HSC7890  Rhododendron occidentale var. paludosum T. M. Mingo May 1965 Humboldt E of parking lot at College Cove, and along road E of College Cove Comment
  JEPS2830 Image available Rhododendron occidentale var. paludosum W. L. Jepson 1902-6-23 1916 Humboldt Fortuna to Eureka, Humboldt Co. Comment
  CAS-BOT-BC433141  Ribes W. R. Dudley 1899-1-1 s.n. Humboldt Possibly South of Arcata Comment
  HSC103198  Ribes binominatum Jade Paget-Seekins 2010-7-6 39 Humboldt On the western shore of Red Cap Lake, to the left of the rocky slope. (Accessible via a few hour hike from the High Point trailhead outside of Forks of Salmon.) 1754 Comment
  CAS-BOT-BC92883  Ribes bracteosum Alice Eastwood 1907-4-21 17 Humboldt Trinidad. Comment
  CAS-BOT-BC108905  Ribes divaricatum var. pubiflorum L. R. Abrams 1922-6-25 8248 Humboldt Near South Bay. Comment
  CAS-BOT-BC108906  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1939-4-27 16226 Humboldt Mouth of Little River. 6 Comment
  UC902060  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1945-5-10 17507 Humboldt on original Ricks Prairie Eureka 45 Comment
  UC902061  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1943-3-21 17412 Humboldt Alton 30 Comment
  UC667073  Ribes inerme var. klamathense Joseph P. Tracy 1939-5-6 16281 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  HSC102560  Ribes lacustre M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1547 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC75511  Ribes lacustre J. O. Sawyer, R. J. Cole 1977-7-3 3022 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  CAS-BOT-BC176804  Ribes laxiflorum Harley P. Chandler 1901-5-1 1202 Humboldt Humboldt Bay 30 Comment
  HSC98554  Ribes lobbii Cara Witte 2008-6-18 742 Humboldt 2 miles north of the intersection between National Forest 1 and Friday Ridge Road/ 6N08 1580 Comment
  HSC100493  Ribes menziesii Carl C. Marshall Apr 1886 134 Humboldt Everywhere about the bay. Comment
  HSC20322  Ribes menziesii C. O. Baker 1962-3-22 11 Humboldt 2 mi. S of Trinidad along old Hwy. 101 183 Comment
  HSC102092  Ribes nevadense M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 995 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC20325  Ribes roezlii J. Sandborg, F. Sandborg 1968-7-19 56 Humboldt Bluff Creek near Notice Creek 793 Comment
  HSC34966  Ribes roezlii Thomas W. Nelson 1975-5-24 1875 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC31647  Ribes roezlii var. cruentum Timothy B. Devine 1974-5-4 314 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  UC902113  Ribes roezlii var. cruentum Joseph P. Tracy 1949-8-11 18449 Humboldt e Korbel (at Hungry Hollow); Bald Mountain 762 Comment
  HSC33053  Ribes sanguineum Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1241 Humboldt Horse Mtn. area 1220 Comment
  HSC70756  Ribes sanguineum R. York 1980-5-17 527 Humboldt Near Le Perron Peak 1066 Comment
  HSC90030  Ribes sanguineum Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-27 62 Humboldt Titlow Rd. 0.5 mi. S of its intersection with Hwy. 299 854 Comment
  UC1198913  Ribes sanguineum Joseph P. Tracy 1928-4-22 8411 Humboldt Willow Creek Canyon Northern Coast Ranges 762 Comment
  UC902091  Ribes sanguineum Joseph P. Tracy 1948-9-5 18178 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC144696  Ribes sanguineum var. glutinosum Doris K. Kildale 1927-5-13 3137 Humboldt Redwood Creek at Berry's 289 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
  HSC20346  Ribes sanguineum var. glutinosum Doris K. Kildale 1927-5-1 3116 Humboldt Blocksburg Comment
  HSC36281  Ribes sanguineum var. glutinosum Barbara Kelly 1976-3-9 248 Humboldt Above Mad River at edge Comment
  UC902090  Ribes sanguineum var. glutinosum Joseph P. Tracy 1948-2-22 17951 Humboldt Table Bluff 91 Comment
  UCR138884  Ribes sanguineum var. glutinosum E. Bower, S. Marubayashi, E. Perry 1997-5-10 52 Humboldt Titlow Hill Road, 0.5 mi past intersection with Hwy 299 762 Comment
  CAS-BOT-BC144695  Ribes sanguineum var. glutinosum H. E. McMinn 1922-8-4 340 Humboldt along Van Dusen River Comment
  RSA0018238  Ribes sanguineum var. glutinosum Lyman Benson 1929-7-19 1876 Humboldt Mouth of Matole [Mattole] River. Comment
  HSC103209  Ribes viscosissimum Jade Paget-Seekins 2010-6-30 32 Humboldt Grouse Mountain on Forest Route 1 at the fork with Grouse Mountain Road. 1578 Comment
Read comments Mar 8 2016
  UC195067  Rigiopappus leptocladus Joseph P. Tracy 1916-6-19 4738 Humboldt near Alder Point; Northern Coast Ranges, Cahto Creek 152 Comment
  HSC57635  Romanzoffia sitchensis G. L. Clifton, Griswold 1979-7-25 10793 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC906641  Romanzoffia tracyi Harold E. Parks and Joseph P. Tracy 1946-4-21 11628 Humboldt 2 mi n of Trinidad 15 Comment
  UC1198278  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9666 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC1199218  Rorippa curvisiliqua Joseph P. Tracy 1937-7-17 15437 Humboldt Eureka 45 Comment
  UCD115287  Rorippa curvisiliqua Malcolm A. Nobs; S. Galen Smith 1949-8-9 1238 Humboldt on southern side of the town of Blue Lake. Comment
  UC14385  Rorippa nasturtium-aquaticum Chestnut and Drew 1888-7-8 Humboldt Arcata Comment
  HSC49683  Rosa canina J. O. Sawyer, R. J. Cole 1977-7-3 3019 Humboldt Along Big Hill Rd. (8N01) at Mud Spring. Comment
  HSC99263  Rosa gymnocarpa C. B. Wolf 1927-8-30 1259 Humboldt 3 mi. S of Thorn along old coast road Comment
  SEINET11912074  Rosa gymnocarpa F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -284 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  CAS-BOT-BC146839  Rosa nutkana W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  CAS-BOT-BC146845  Rosa nutkana Doris Kildale Gillespie 1931-6-7 10644 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  CAS-BOT-BC146846  Rosa nutkana Doris Kildale Gillespie 1931-6-7 10656 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  JEPS45642  Rosa nutkana var. nutkana Joseph P. Tracy 1923-6-22 6345 Humboldt Angels Ranch Bald Mt.; Northern Coast Ranges, Bald Mt. 457 Comment
  UC902163  Rosa nutkana var. nutkana Joseph P. Tracy 1942-6-15 17131 Humboldt near Redcrest resort; Englewood 91 Comment
  HSC60108  Rosa pisocarpa M. A. Baker 1978-5-2 451 Humboldt Elk Head Comment
  HSC24018  Rosa rubiginosa Tim Baroni 1971-6-25 48 Humboldt [no information] Comment
  HSC48415  Rosa rubiginosa J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9926 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  HSC19675  Rubus armeniacus R. T. Haase 1965-5-3 30 Humboldt Parking lot behind Mai Kai Apts. Comment
  UC667049  Rubus discolor Joseph P. Tracy 1933-8-22 12979 Humboldt Eureka 6 Comment
  CAS-BOT-BC148385  Rubus leucodermis Doris K. Kildale 1927-5-13 3138 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC148386  Rubus leucodermis Doris K. Kildale 1927-5-13 3138 Humboldt Redwood Creek at Berry's 289 Comment
  HSC73244  Rubus leucodermis M. A. Baker 1980-5-18 1341 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC147238  Rubus parviflorus Kenneth Clark 1980-3-23 535 Humboldt On middle terrace of north fork Dead Man's Gulch 76 Comment
  HSC41325  Rubus parviflorus Brad Klipfel 1974-8-2 516 Humboldt Horse Mtn. Comment
  SEINET4093648  Rubus parviflorus O. M. Clark 1932-1 707 Humboldt South Eureka. Comment
  CAS-BOT-BC156720  Rubus spectabilis W. R. Dudley 1899-6-21 s.n. Humboldt Engelwood Brook - Eel River Comment
  CAS-BOT-BC156724  Rubus spectabilis M. S. Jussel 1931-5-2 s.n. Humboldt Eureka Comment
  RSA74607  Rubus spectabilis E. K. Balls, Lee W. Lenz 1956-6-12 1667 Humboldt Between Willow Creek and Blue Lake. Comment
  UC709449  Rubus spectabilis Joseph P. Tracy 1941-4-8 16853 Humboldt along Trinity Highway (Willow Creek Canyon, along head of Willow Creek); Willow Creek Canyon, along head of Willow Creek 762 Comment
  UC902133  Rubus spectabilis Joseph P. Tracy 1948-5-15 17979 Humboldt along Trinity Highway (Willow Creek Canyon, East Fork Willow Creek); Willow Creek Canyon, East Fork Willow Creek 457 Comment
  UCD150631  Rubus spectabilis Wayne Padgett 1974-5-25 65 Humboldt Two miles S of Patrick's Point State Park on coast road. Comment
  HSC57022  Rubus ursinus Overton, Butler 1979-7-24 9637 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC74629  Rubus ursinus M. A. Baker 1980-5-17 1236 Humboldt Near Le Perron Peak 1066 Comment
  UC154255  Rubus ursinus J. P. Tracy 1904-7-31 2133 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UCD89721  Rubus ursinus Lindsay Clark 2008-6-23 KRC 6 Humboldt Nadelos Campground in King Range Conservation Area, 3.8 miles SE of Shelter Cove. 550 Comment
  HSC76413  Rudbeckia californica Michael Ericksen 1981-8-21 1082 Humboldt Near Dan East Cabin 1609 Comment
  HSC104451  Rumex acetosella Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 26 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC76604  Rumex acetosella John Demarinis 1981-7-21 885 Humboldt Near Table Bluff 38 Comment
  HSC40030  Rumex acetosella Thomas W. Nelson, Jane Nelson 1976-6-22 2876 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  HSC45630  Rumex acetosella Diane L. Reed 1978-5-27 138 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  CAS-BOT-BC421524  Rumex crassus Doris K. Kildale 1926-8-12 2481 Humboldt Moonstone Beach near Trinidad Comment
  HSC37577  Rumex crispus J. D. Ackerman 1975-6-10 452 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd. S of Manila Comment
  HSC17616  Rumex obtusifolius Wm. F. Bowman 1968-11-20 Humboldt 4 mi. SE of Arcata, along Jacoby Creek Rd. Comment
  CAS-BOT-BC433703  Rumex occidentalis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  CAS-BOT-BC109293  Rumex paucifolius R. K. Gierisch; D. H. Esplin 1969-7-1 3538 Humboldt Six Rivers. Grouse Mountain. 1584 Comment
  UC1541397  Rumex salicifolius var. salicifolius Harold E. Parks 1934-8 5166 Humboldt Big Lagoon Comment
  HSC95362  Rumex salicifolius var. transitorius Andrea Pickart 2002-8-8 200 Humboldt Arcata bottoms, Lanphere Rd. near end 20 Comment
  HSC93512  Ruppia cirrhosa Gordon Leppig 1998-6-25 752 Humboldt Hwy. 101 marker 81.60, brackish ditch on E side of Hwy. 2 Comment
  CAS-BOT-BC454156  Ruppia maritima Malcom A. Nobs; S. Galen Smith 1949-8-3 1181 Humboldt Near mouth of the Elk River on Highway 101, ca. 4 miles south of Eureka Comment
  UC275565  Ruppia maritima Joseph P. Tracy 1923-5-30 6248 Humboldt mouth of Little River; Northern Coast Ranges 1 Comment
  UC1103532  Sagina apetala Joseph P. Tracy 1946-6-23 17598 Humboldt roadside near Dan McBride place Kneeland Prairie 762 Comment
  UC1115830  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1939-4-18 16212 Humboldt Garberville 152 Comment
  HSC4151  Sagina decumbens subsp. occidentalis J. P. Tracy 1905-4-30 2172 Humboldt Beach of Humboldt Bay Comment
  POM151674  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1905-4-30 2172 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay. Comment
  HSC49825  Salicornia depressa R. York 1979-5-18 299 Humboldt From area around Humboldt Bay. Comment
  HSC62891  Salicornia depressa J. M. DiTomaso 1979-5-20 1066 Humboldt Eureka Bay 3 mi. SW of Arcata on Samoa Rd. Comment
  OBI36622  Salicornia pacifica David J. Keil 1983-7-2 17297 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  CHSC72212  Salicornia virginica Vernon H. Oswald 1998-9-2 9562 Humboldt Humboldt Bay NWR south of Eureka, Hookton Slough Trail on the levee along the south side of Hookton Slough. 0 Comment
  JEPS93952  Salicornia virginica Vernon H. Oswald 1998-9-2 9562 Humboldt Humboldt Bay National Wildlife Refuge s of Eureka (Hookton Slough Trail on the levee along s side of Hookton Slough); Humboldt Bay National Wildlife Refuge, Hookton Slough Comment
  CAS-BOT-BC103807  Salix exigua W. R. Dudley 1899-6-21 s.n. Humboldt near bluff below junction of North and South Forks of Eel River Comment
  CAS-BOT-BC103808  Salix exigua W. R. Dudley 1899-6-21 s.n. Humboldt Near forks of Eel River by Dyerville Comment
  HSC19948  Salix exigua var. hindsiana H. E. Parks 1931-8-25 1061 Humboldt Blue Slide, Van Duzen River 90 Comment
  LA208631  Salix exigua var. hindsiana Harold E. Parks; 1931-8-25 1061 Humboldt Blue Slide, Van Duzen River 90.0 Comment
  LA208691  Salix exigua var. hindsiana Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 1335 Humboldt above Trinity River; 1 mi below bridge on Trinity Hwy 152 Comment
  UC469443  Salix exigua var. hindsiana Joseph P. Tracy 1931-9-7 9642 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC512028  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1330 Humboldt near bridge on Trinity Hwy. Trinity R. 152 Comment
  CAS-BOT-BC107731  Salix hookeriana Harold E. Parks 1931-3-26 904 Humboldt Alton, on Van Duzen River 15 Comment
  CHSC9652  Salix hookeriana E. L. Smith 1971-8-18 1023 Humboldt At Manila ca. 4 mi sw of Arcata, on w side of Humboldt Bay opposite of Eureka. Comment
  HSC59397  Salix hookeriana Rick Lundquist 1979-4-27 44 Humboldt N spit along Samoa Rd., across from Samoa boat ramp 0 Comment
  JEPS38444  Salix hookeriana Joseph P. Tracy 1918-4-7 4863 Humboldt Strawberry Creek Northern Coast Ranges, Dows Prairie Sand Dunes (at mouth) 6 Comment
  RSA178540  Salix hookeriana Joseph P. Tracy 1950-9-10 19366 Humboldt On foothills of Cape Ridge. 0.5 mile S of town. 1 mile inland from Cape Mendocino. 61 Comment
  UC1196634  Salix hookeriana Joseph P. Tracy 1934-3-10 13161 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC212999  Salix hookeriana Joseph P. Tracy 1920-2-29 5309 Humboldt Ryans Slough Northern Coast Ranges, around Humboldt Bay 15 Comment
  UC275497  Salix hookeriana Joseph P. Tracy 1925-4-5 6951 Humboldt near Kneeland Prairie (near Loren Frost place on Kneeland Rd.); Northern Coast Ranges 609 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
  UC481348  Salix hookeriana Harold E. Parks 1931-5-12 953 Humboldt Samoa Humboldt Bay Comment
  UC490458  Salix hookeriana Joseph P. Tracy 1932-5-10 9952 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC506402  Salix hookeriana Joseph P. Tracy 1933-4-9 10969 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC512014  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1229 Humboldt 1 1/2 mi e Alton; Van Duzen River 30 Comment
  UC512094  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1215 Humboldt 1 mi n Samoa (pine barrens near coast) Comment
  SJSU262  Salix laevigata Mrs. H. P. Bracelin 1931-4-1 272 Humboldt Sylvandale between Miranda & Meyers, S Fork Eel R Comment
  UC490525  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-4-17 9796 Humboldt Alton to Fortuna; Northern Coast Region 15 Comment
  UC504058  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 2 Humboldt around Eureka Eureka Comment
  UCD111578  Salix lasiandra var. lasiandra Joseph P. Tracy 1947-8-24 17896 Humboldt Trinity Summit, meadow at Box Camp. 1463 Comment
  CAS-BOT-BC107589  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1318 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107605  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-17 1329 Humboldt On west slpe of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  CAS-BOT-BC107606  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-17 1324 Humboldt On west slpe of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  CAS-BOT-BC107619  Salix lasiolepis Doris K. Kildale 1927-3-22 2934 Humboldt Samoa Peninsula Comment
  CAS-BOT-BC107622  Salix lasiolepis Joseph P. Tracy 1933-4-9 10966 Humboldt Bridgeville, along Van Duzen R. 228 Comment
  CAS-BOT-BC107623  Salix lasiolepis Joseph P. Tracy 1934-4-8 13171 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  HSC20005  Salix lasiolepis J. P. Tracy 1932-8-27 10753 Humboldt Blue Slide, Van Duzen River 91 Comment
  HSC20010  Salix lasiolepis J. P. Tracy 1933-2-26 10914 Humboldt Miranda, S Fork of Eel River 122 Comment
  HSC20011  Salix lasiolepis J. P. Tracy 1933-5-14 12184 Humboldt Berry's Mt. on Trinity Hwy. 762 Comment
  HSC98523  Salix lasiolepis Cara Witte 2007-7-3 409 Humboldt White Oak Opening. 1242 Comment
  JEPS12924  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1933-3-19 11007 Humboldt 2 mi w Bridgeville (near Big Rock); Northern Coast Ranges 182 Comment
  JEPS12948  Salix lasiolepis Joseph P. Tracy 1932-3-6 9776 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS12967  Salix lasiolepis Joseph P. Tracy 1931-9-26 9696 Humboldt at Redwood Creek Berry's; Northern Coast Ranges 274 Comment
  JEPS14772  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt on Trinity Hwy. Berry's Mt. (e of Redwood Creek); Northern Coast Ranges 762 Comment
  LA208772  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  UC1196657  Salix lasiolepis Joseph P. Tracy 1913-6-18 4197 Humboldt Dinsmore's Ranch Northern Coast Ranges, valley of Van Duzen River (opposite Buck Mt.) 762 Comment
  UC469425  Salix lasiolepis Joseph P. Tracy 1931-3-31 9328 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC490463  Salix lasiolepis Joseph P. Tracy 1932-9-5 10765 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC490543  Salix lasiolepis Joseph P. Tracy 1932-5-10 9958 Humboldt near Petrolia; Northern Coast Ranges, Mattole River 15 Comment
  UC504027  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1320 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC506507  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC512034  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1325 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  UC519349  Salix lasiolepis Joseph P. Tracy 1913-11-12 13115 Humboldt Miranda North Coast Ranges, South Fork of Eel River 91 Comment
  UC54934  Salix lasiolepis P. E. Goddard 1901-8-1 141 Humboldt Hupa Comment
  UCD111587  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 01321 Humboldt Redwood Creek, at Berry's, on Trinity Highway. 274 Comment
  LA208775  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1932-5-17 1324 Humboldt W slope of Berry's Mountain; on Trinity Hwy; E of Redwood Creek 761 Comment
  SEINET12003293  Salix lasiolepis J. P. Tracy 1950-1 18623 Humboldt Van Duzen River, 10 mi SE of Dinsmore's, 4 mi SE of Kuntz Comment
  UCSB11963  Salix lasiolepis Ball, Carleton; Parks, Harold; Tracy, Joseph 1932-5-13 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CHSC9644  Salix lucida subsp. lasiandra E. L. Smith 1971-8-17 1015 Humboldt South fork of Trinity River on Hwy 299 at Sayler. 487 Comment
  SBBG57833  Salix lucida subsp. lasiandra H. E. Parks 1931-3-14 959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  HSC20060  Salix melanopsis C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1237 Humboldt Van Duzen River at Blue Slide 91 Comment
  HSC20061  Salix melanopsis C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1234 Humboldt Van Duzen River, 1.5 mi. E of Alton 30 Comment
  JEPS12972  Salix melanopsis Joseph P. Tracy 1931-9-7 9644 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS14789  Salix melanopsis Joseph P. Tracy 1933-6-11 12551 Humboldt S. Fork Eel River near Miranda; Northern Coast Ranges 60 Comment
  LA208878  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  POM362860  Salix melanopsis H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy, 6km S of Alton. 20 Comment
  SBBG57931  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy, 6 km S of Alton Comment
  SD909  Salix melanopsis Harold E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC1173582  Salix melanopsis Joseph P. Tracy 1939-8-5 16393 Humboldt Van Duzen R. at Dinsmore's; Van Duzen R. 737 Comment
  UC1196570  Salix melanopsis Joseph P. Tracy 1932-7-31 10292 Humboldt at mouth of Larrabee Creek Eel R.; Northern Coast Ranges, Eel R. 60 Comment
  UC481275  Salix melanopsis Harold E. Parks 1931-5-28 1027 Humboldt Little River Lagoon Comment
  UC490570  Salix melanopsis Joseph P. Tracy 1932-6-4 10129 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC511995  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1237 Humboldt Van Duzen R. at Blue Slide; Van Duzen R. 91 Comment
  UC519373  Salix melanopsis Joseph P. Tracy 1933-5-20 12262 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  CAS-BOT-BC129128  Salix scouleriana A. T. Whittemore 1979-4-5 79 -012 Humboldt Arcata, cleared field along Alliance Road immediately north of Arcata High School 6 Comment
  HSC20091  Salix scouleriana H. E. Parks Feb 1933 1151 Humboldt Spruce Cove, Trinidad Comment
  HSC98806  Salix scouleriana Cara Witte 2007-7-12 527 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  JEPS13087  Salix scouleriana Joseph P. Tracy 1937-2-21 15230 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  UC525974  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch) Trinidad; , Spruce Cove (Parks Ranch) Comment
  HSC33297  Salix sitchensis R. W. Becking, Thomas Overturf 1975-3-25 705 Humboldt Mad River, 1 mi. S of Blue Lake 21 Comment
  HSC37884  Salix sitchensis Thomas W. Nelson 1976-4-3 2286 Humboldt Van Duzen River at Grizzley Creek Comment
  JEPS14748  Salix sitchensis Joseph P. Tracy 1932-8-11 10340 Humboldt N. Yager Creek Northern Coast Ranges 304 Comment
  UC469470  Salix sitchensis Joseph P. Tracy 1931-9-19 9683 Humboldt Van Duzen R. Alton; Northern Coast Region, , Alton 30 Comment
  UC490493  Salix sitchensis Joseph P. Tracy 1932-8-27 10749 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  CDA39587  Salix sitchensis Gordon Leppig 2005-4-8 2206 Humboldt North Spit Swamp, west side of highway. Comment
  HSC20133  Salix tracyi J. P. Tracy 1933-5-14 12178 Humboldt Trinity River Valley, mouth of Willow Creek 152 Comment
  RSA114994  Sambucus callicarpa E. K. Balls, L. W. Lenz 1955-5-15 20735 Humboldt 7.7 miles southwest from Ferndale along Old Coast Road to Capetown 518 Comment
  HSC58141  Sambucus nigra subsp. caerulea Gilbert Muth 1979-8-1 12164 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC602561  Sambucus racemosa var. racemosa Joseph P. Tracy 1932-7-14 10570 Humboldt ridges e Corral Prairie; Trinity Summit 1676 Comment
  CAS-BOT-BC223252  Sanicula bipinnatifida M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  CAS-BOT-BC223253  Sanicula bipinnatifida Joseph P. Tracy 1938-7-4 15985 Humboldt Valley of South Yager Creek 762 Comment
  HSC21621  Sanicula bipinnatifida Paul Shields May 1955 Humboldt Horse Mountain Comment
  UC642301  Sanicula bipinnatifida Joseph P. Tracy 1938-7-4 15985 Humboldt Valley of South Yager Creek 762 Comment
  HSC21629  Sanicula bipinnatifida D. E. Anderson, N. J. Cole 1965-4-13 13 Humboldt 2 1/2 mi. SE of Maple Creek Rd. junction with Bald Hills Road, SE of Korbel Comment
  UC1022529  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 3 X449 Humboldt 5 mi n of Loleta (to e of U.S. Hwy 101) Comment
  UC1197092  Sanicula graveolens Joseph P. Tracy 1935-7-14 14069 Humboldt Grouse Mountain 1524 Comment
  HSC45395  Sanicula graveolens Thomas W. Nelson, Jane P. Nelson 1977-7-4 3594 Humboldt Beside pond above Alder Springs 1585 Comment
  HSC68622  Sanicula tracyi Jacqueline Greenleaf 1980-8-5 281 Humboldt Near Dairy Creek. 1158 Comment
  HSC68625  Sanicula tracyi Jacqueline Greenleaf 1980-7-16 239 Humboldt Near Buck Mtn. 1250 Comment
  JEPS949  Sanicula tuberosa Joseph P. Tracy 1923-7-4 6528 Humboldt Northern Coast Ranges, Valley of South Yager Creek Valley of South Yager Creek; Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  UC1222738  Sanicula tuberosa Joseph P. Tracy 1950-7-1 18943 Humboldt near Clear Lake (where Friday Ridge Road comes to top of Grouse Mountain Ridge, at summit of Grouse Mountain); Grouse Mountain 1524 Comment
  SEINET3240200  Santalaceae R. L. Mathiasen 2003-1 2003 -51 Humboldt 0.2 km NW of Blake Mountain on for. rd. 02N01 1760 Comment
  UC412776  Sarcodes sanguinea P. E. Goddard 1906-6 681 Humboldt ridge near <Lassick> Peak Comment
  UC1239685  Satureja douglasii Joseph P. Tracy 1911-7-5 3332 Humboldt in woods along Willow Creek (tributary of Trinity River) (near its mouth); Northern Coast Ranges 152 Comment
  UC1198877  Saxifraga californica Joseph P. Tracy 1922-5-29 6076 Humboldt head of South Yager Creek; Northern Coast Ranges, South Yager Creek 762 Comment
  UC492225  Saxifraga californica Joseph P. Tracy 1927-3-27 7851 Humboldt near the South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC902010  Saxifraga marshallii Joseph P. Tracy 1948-5-15 17978 Humboldt Willow Creek Canyon, along Trinity Highway at the East Fork Willow Creek Canyon 457 Comment
  CAS-BOT-BC441184  Saxifraga mertensiana Doris K. Kildale 1927-3-20 2930 Humboldt Philipsville. South fork of Eel River Comment
  UC183569  Saxifraga nidifica var. nidifica Joseph P. Tracy 1913-6-17 4178 Humboldt near summit of Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  RSA245226  Scabiosa atropurpurea Thomas W. Nelson 1970-10-31 280 Humboldt Beside Hwy 101 between Arcata and Eureka. Ca. 3 miles S of Arcata. Comment
  CAS-BOT-BC111332  Schoenoplectus acutus var. occidentalis Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC111333  Schoenoplectus acutus var. occidentalis Robert F. Thorne; P. Everett 1965-8-9 35283 Humboldt Big Lagoon 3 Comment
  CHSC68459  Schoenoplectus acutus var. occidentalis L. P. Janeway 1987-7-30 2535 Humboldt Dry Lagoon. Middle of the lagoon. 3 Comment
  RSA246889  Schoenoplectus acutus var. occidentalis Robert F. Thorne, Percy C. Everett 1965-8-9 35283 Humboldt Big Lagoon. 3 Comment
  HSC48781  Scirpus microcarpus Brad Klipfel 1974-5-11 336 Humboldt SW side of Big Lagoon Comment
  CAS-BOT-BC517416  Scoliopus bigelovii Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC66221  Scoliopus bigelovii N. J. Miller 1977-3-5 1 Humboldt Camp Bauer Park, 100 yds. E of baseball field, 0.25 mi. NE of Korbel 58 Comment
  SEINET12051381  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -279 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  SEINET12058059  Scoliopus bigelovii F. H. Utech 1988-3-4 88 -026 Humboldt 12.7 mi E on CA 36 from jct US 101 & Van Duzen River, Grizzly Creek Redwoods, O.R. Cheatam Grove 90 Comment
  HSC12558  Scrophularia californica D. La Conte 1970-7-7 20 Humboldt Comment
  HSC21127  Scrophularia californica R. I. Bonn 1965-5-9 44 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  RSA183621  Scutellaria tuberosa D. E. Anderson 1965-5-8 3644 Humboldt About 2 miles north of Willow Creek on road running along east side of Trinity River. Comment
  HSC99057  Sedum laxum subsp. flavidum Cara Witte 2008-7-11 873 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC59850  Sedum obtusatum subsp. retusum M. A. Baker 1979-6-27 927 Humboldt Head of Grogan Hole, at the head of Oregon Creek Comment
  UC302107  Sedum radiatum Joseph P. Tracy 1926-7-5 7726 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley South Yager Creek 762 Comment
  CAS-BOT-BC63826  Sedum spathulifolium Elizabeth Parsons Hawyer 1915-6-1 s.n. Humboldt Carlotta Comment
  RSA0081471  Sedum spathulifolium Anstruther Davidson s.n. Humboldt Eel River. Comment
  RSA0081472  Sedum spathulifolium C. B. Wolf 1934-7-2 5858 Humboldt One mile from Bald Mt. on road to Korbel. 762 Comment
  HSC92016  Sedum spathulifolium var. pruinosum E. Mackey 1987-9-7 Humboldt Patrick's Point State Park Comment
  HSC71086  Sedum stenopetalum Thomas W. Nelson, Jane Nelson 1977-5-30 3405 Humboldt Large rock downstream from Anderson's Ford 640 Comment
  UC503073  Selaginella oregana Joseph P. Tracy 1928-4-29 8426 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  CAS-BOT-BC62179  Selaginella oregana Joseph P. Tracy 1933-5-18 12196 Humboldt Mad River, near Blue Lake 15 Comment
  JEPS19067  Selaginella oregana Joseph P. Tracy 1933-11-26 13124 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  RSA170262  Selaginella oregana Joseph P. Tracy 1920-10-24 5407 Humboldt Near Korbel. 640 Comment
  UC1239800  Selaginella wallacei Joseph P. Tracy 1913-5-4 4062 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC1284956  Senecio blochmaniae R. F. Hoover 1946-10-29 6526 Humboldt near Callender railroad siding Comment
Read comments Mar 19 2007
  UC630453  Senecio glomeratus H. E. and S. T. Parks 1937-7-1 24033 Humboldt Spruce Cove Trinidad, Spruce Cove 60 Comment
  UC249532  Senecio integerrimus var. major Joseph P. Tracy 1922-6-12 6087 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1223148  Senecio integerrimus var. major Joseph P. Tracy 1951-5-26 19509 Humboldt opposite Willow Creek; Trinity River Comment
  UC1199490  Senecio minimus Joseph P. Tracy 1920-9-19 5400 Humboldt along newly constructed road, North Fork of Mad River; Northern Coast Ranges 304 Comment
  UC204824  Senecio minimus Joseph P. Tracy 1918-7-28 5088 Humboldt Ocean Beach at Humboldt Bay 60 Comment
  UC204868  Senecio sylvaticus Joseph P. Tracy 1918-9-1 5095 Humboldt Newells Camp on old Kneelans Praire Road 457 Comment
  UC581709  Senecio triangularis Joseph P. Tracy 1930-7-16 8934 Humboldt in wet meadow at McKay Camp (South Fork Mountain); , McKay Camp 1676 Comment
  HSC39967  Senecio vulgaris Linda M. Barker 1976-3-22 1337 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC85835  Sequoia sempervirens Dr. A. Kellogg; W. G. W. Harford 1868-1-1 960 Humboldt unspecified Comment
  CAS-BOT-BC85837  Sequoia sempervirens Doris K. Kildale 1926-8-23 2557 Humboldt North Fork of Eel River Comment
  SEINET3876306 Image available Sequoia sempervirens K. S. Erdman 1970-6-19 4840 Humboldt Redwood Creek, about 2-3 miles above the road end. Near McArthur and Elam Creeks, Redwood National Park.; 0 Comment
  SEINET3876316 Image available Sequoia sempervirens Jack D. Brotherson 1982-7-14 3314 Humboldt Ca 25 miles north of Arcata along U.S. Hwy 101.; 0 Comment
  CDA14148  Setaria parviflora P. Haggard, G. Leppig 1998-2-4 Humboldt East of Arcata on North Bank Rd. above Mad River immed. E of Azalea Reserve. Stand approx. 25' in length, growing in recently disturbed area. Perennial, short-rhizomatous. 0 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
  UC18874  Sidalcea diploscypha C. C. Marshall 1888-1 Humboldt Comment
  RSA33405  Sidalcea malachroides Doris K. Kildale 1927-7-2 s.n. Humboldt Lord (?) Ellis Road, near Korbel Comment
  UC153948  Sidalcea malachroides J. P. Tracy 1910-5-22 3141 Humboldt vicinity Eureka; vicinity of Eureka 0 Comment
  HSC62917  Sidalcea malviflora J. M. DiTomaso 1979-5-20 1060 Humboldt Top of Elks Head, 1 mi. N of Trinidad Comment
  UC1197974  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1935-6-23 13978 Humboldt French Camp Ridge 1066 Comment
  UC18900  Sidalcea malviflora subsp. patula C. C. Marshall 1888-1 Humboldt e branch of South Fork Eel River Comment
  UC902193  Sidalcea malviflora subsp. patula Joseph P. Tracy 1946-5-30 17546 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House); e of Carlotta 60 Comment
  HSC104343  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 3 Humboldt McKinleyville; Dow's Prairie, near Arcata Airport 61 Comment
  UC668143  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-8-22 15671 Humboldt 2 mi s Fields Landing (at Still Ranch); s of Fields Landing, at Still Ranch 6 Comment
  CDA36500  Sidalcea oregana subsp. hydrophila T. C. Fuller 1958-6-17 598 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC102530  Sidalcea oregana subsp. oregana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1517 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  POM192570  Silene californica H. E. Parks 1930-05 0751 Humboldt Vicinity of Hydesville. Comment
  RSA20850  Silene californica C. B. Wolf 1937-6-18 8890 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  RSA47144  Silene californica Doris K. Kildale 1925-7-2 900 Humboldt Table Bluff - bluff on coast. Comment
  UC906706  Silene californica Harold E. Parks and Joseph P. Tracy 1942-7-1 11575 Humboldt Dinsmore's 762 Comment
  HSC56992  Silene campanulata Overton, Butler 1979-7-24 9559 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC57950  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-7-31 11629 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC183591  Silene campanulata subsp. glandulosa Joseph P. Tracy 1913-6-15 4140 Humboldt near summit of ridge between Van Duzen and Mad Rivers (on Dinsmore's Ranch); Northern Coast Ranges, btw Van Duzen and Mad Rivers 1066 Comment
  HSC37960  Silene gallica Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  UC1198368  Silene gallica Joseph P. Tracy 1930-5-24 8700 Humboldt on gravel bar of North Fork Mad River (at Riverside); North Fork of Mad River, at Riverside 30 Comment
  HSC23821  Silene gallica R. A. Vanbianchi 1971-6-14 1 Humboldt Comment
  HSC68009  Silene gallica J. P. Smith 1970-6-7 3804 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  UC427880  Silene hookeri H. E. Parks, J. P. Tracy 1930-5-25 791 Humboldt Laribee Valley 792 Comment
  UC1115828  Silene hookeri Joseph P. Tracy 1939-5-14 16283 Humboldt lower foothills of nw slope Buck Mountain 914 Comment
  CAS-BOT-BC181228  Silene hookeri subsp. bolanderi H. E. Parks; J. P. Tracy 1930-5-25 0791 Humboldt Laribee Valley 792 Comment
  HSC57361  Silene laciniata subsp. californica Overton, Butler 1979-7-26 10065 Humboldt Near Cold Spring, close to the town of Willow Creek 1408 Comment
  UC275484  Silene scouleri subsp. grandis Joseph P. Tracy 1925-8-30 7254 Humboldt Freshwater Lagoon Northern Coast Ranges (Northern Coast Ranges) 60 Comment
  HSC67883  Silybum marianum J. P. Smith 1973-5-26 6872 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  POM299501  Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge 33 Comment
  UC1051527  Sisyrinchium bellum Helen K. Sharsmith 1953-6-28 4384 Humboldt between Bell Springs and Blue Rock Ranch (on Bell Springs Road); Inner North Coast Ranges 853 Comment
  HSC91874  Sisyrinchium californicum E. Mackey 1986-5-13 Humboldt Patrick's Point State Park Comment
  UC1197805  Smilacina racemosa Joseph P. Tracy 1936-8-7 15106 1/2 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UC673109  Solanum americanum Joseph P. Tracy 1940-10-17 16767 Humboldt 2 - 5 mi e of the South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  CAS-BOT-BC236441  Solanum aviculare Doris K. Kildale 1925-9-28 1357 Humboldt Samoa Peninsula Comment
  UC1196157  Solanum sarrachoides Joseph P. Tracy 1940-10-15 16758 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  JEPS12167  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15316 Humboldt Bridgeville 198 Comment
  RSA18140  Solidago canadensis subsp. elongata C. B. Wolf 1927-8-22 809 Humboldt 1 mile south of Orick. Comment
  JEPS32395  Solidago elongata Lincoln Constance 1934-6-12 867 Humboldt n bank South Fork Eel River (Bull Creek Road, Dyerville); n bank South Fork Eel River, Bull Creek Region, Dyerville Comment
  LA203957  Solidago elongata H. E. Parks; July 1931 - August 1931 1056 Humboldt Trinidad 76 Comment
  UC1541617  Solidago elongata H. E. and S. T. Parks 1930-9-14 785 Humboldt n shore Big Lagoon Comment
  UC175202  Solidago elongata Joseph P. Tracy 1913-9-9 4397 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  CAS-BOT-BC365669  Solidago spathulata Doris K. Kildale 1928-8-10 6263 Humboldt Samoa Peninsula - Humboldt Bay Comment
  LA204224  Solidago spathulata S. K. Harris; 1939-9-5 990 Humboldt Samoa Comment
  SEINET5506402 Image available Solidago spathulata S. K. Harris 1939-1 s.n. Humboldt Samoa Comment
  UC1173677  Solidago spathulata Joseph P. Tracy 1939-8-18 16426 Humboldt on vacant lot on Clark St. (between C and D; 1/2 mi from bay); Eureka 15 Comment
  UC1199319  Solidago spathulata J. P. Tracy 1900-7-4 885 Humboldt opposite Eureka (Samoa); Samoa Comment
  RSA0043130  Solidago spathulata Patricia Wilder 1968-8-21 4401 Humboldt Northern coastal arm of Humboldt Bay, ca. two miles southwest of Samoa. Humboldt Bay drainage area. 8 Comment
  SEINET11800945  Solidago spathulata J. P. Tracy 1948-1 18226 Humboldt Fickle Hill, 6 mi SE of Arcata 610 Comment
  UC166083  Soliva sessilis J. P. Tracy 1901-5-5 1069 Humboldt immediate vicinity Eureka 0 Comment
  HSC35009  Soliva sessilis J. O. Sawyer 1975-5-20 2695 Humboldt 1445 Chester Ave., Sunnybrae Comment
  CAS-BOT-BC374429  Sonchus asper Huron H. Smith 1911-1-1 3785 Humboldt Unspecified Comment
  HSC63283  Sorbus scopulina M. A. Baker 1979-6-29 934 Humboldt Head of Oregon Creek Comment
  HSC76207  Sorbus scopulina Overton, Butler 1979-8-2 12529 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC21343  Sparganium angustifolium D. E. Anderson 1963-9-29 2854 Humboldt Fish Lake. Comment
  JEPS397  Sparganium emersum var. emersum Joseph P. Tracy 1934-7-30 13507 Humboldt along coast in front of s end Stone Lagoon; Dry Lagoon 3 Comment
  UC14919  Sparganium erectum subsp. stoloniferum Hattie F. Tracy 1901-6-26 1216 Humboldt Loleta 15 Comment
  CAS-BOT-BC235372  Spartina densiflora Malcom A. Nobs; S. Galen Smith 1949-8-3 1180 Humboldt Near mouth of the Elk River, ca. 4 miles south of Eureka on Highway 101 Comment
  UCD92967  Spartina densiflora Phyllis Faber 1983-11-11 s.n. Humboldt Humboldt Bay, Arcata. Comment
  HSC12566  Spergula arvensis D. La Conte 1970-8-10 3 Humboldt Comment
  HSC79184  Spergula arvensis L. P. Janeway 1984-2-6 711 Humboldt .25 mi. up Hidden Creek Rd. from LK Wood Blvd. 46 Comment
  OBI36625  Spergularia macrotheca David J. Keil 1983-7-2 17302 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  CAS-BOT-BC149618  Spiraea douglasii Malcom A. Nobs; S. Galen Smith 1949-8-9 1226 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley Comment
  RSA12532  Spiraea douglasii Carl B. Wolf 1934-7-2 5906 Humboldt 4.5 miles from Snow Camp on road to Bald Mt (Mtns E of Korbel). 1067 Comment
  RSA239688  Spiraea douglasii Larry E. DeBuhr 1973-4-23 996 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  RSA472780  Spiraea douglasii Emery M. Whilton 1941-6-25 s.n. Humboldt Scotia. Comment
  UC1196401  Spiranthes romanzoffiana Joseph P. Tracy 1941-8-24 17037 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC13535  Spiranthes romanzoffiana Chesnut and Drew 1888-8-11 Humboldt Eureka Comment
  UC146132  Spirodela polyrhiza Joseph P. Tracy 1908-6 2745 Humboldt nw slope Buck Mountain (pond above mouth of Little Van Duzen); Northern Coast Ranges 457 Comment
  HSC62923  Spirodela punctata J. M. DiTomaso 1979-4-21 893 Humboldt Next to Hwy. 101 at Crannell Rd. exit between Westhaven and Mckinleyville Comment
  UC577322  Stachys ajugoides var. rigida Joseph P. Tracy 1933-6-24 12611 Humboldt Big Lagoon 3 Comment
  UCLA71114  Stachys ajugoides var. rigida C. Epling Jun 1938 Humboldt above Redwood Creek Comment
  RSA26844  Stachys chamissonis I. L. Wiggins 1940-7-10 9489 Humboldt Table Bluff Comment
  UC673112  Stachys chamissonis Joseph P. Tracy 1940-9-26 16726 Humboldt Eureka 3 Comment
  HSC76525  Stachys rigida Teresa Prendusi 1981-7-24 488 Humboldt Near Whiteys Peak 1585 Comment
  HSC12596  Stachys rigida C. Kline 1970-11-9 62 Humboldt Bayside Rd., .5 mile N of Bayside Comment
  UCR30858  Stachys rigida var. quercetorum A. C. Sanders 1981-8-6 2310 Humboldt Russ Park, City of Ferndale 46 Comment
  SD93025  Stachys rigida var. quercetorum W. Bertsch 1953-7-30 218 Humboldt Highway 101 at Duncan Grove. 91 Comment
  UC668076  Stellaria crispa Joseph P. Tracy 1930-7-16 8926 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC4268  Stellaria media D. E. Anderson 1962-7-17 2274 Humboldt Camp Bauer, 1/4 mi. E of Korbel, along N Fork of Mad River Comment
  HSC76433  Stenanthium occidentale Denis Kearns 1981-7-23 434 Humboldt Near Whiteys Peak. 1524 Comment
  HSC6231  Stephanomeria virgata Paul Shields 1955-9-25 Humboldt 17 mi. of Willow Creek Comment
  UC1223172  Stephanomeria virgata subsp. pleurocarpa Joseph P. Tracy 1946-11-17 17666 Humboldt Eel River at mouth of Van Duzen River Eel River, Van Duzen River Comment
  HSC98186  Stipa lemmonii J. P. Tracy 1930-7-23 9125 Humboldt Horse Mtn. 1524 Comment
  HSC6946  Streptanthus tortuosus R. Spellenberg 1965-6-14 1130 Humboldt S of airport, 5 mi. E of Kneeland Comment
  UC1198801  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1926-6-20 7655 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC302043  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1926-5-15 7477 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC102122  Streptanthus tortuosus var. tortuosus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1026 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC58025  Streptopus amplexifolius G. L. Clifton 1979-7-31 11833 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1103501  Streptopus amplexifolius var. americanus Joseph P. Tracy 1935-7-25 14230 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  HSC56382  Symphoricarpos albus var. laevigatus Griswold, Butler 1979-7-11 6912 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UC1173691  Symphoricarpos albus var. laevigatus Joseph P. Tracy 1939-8-20 16428 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  CAS-BOT-BC269696  Symphoricarpos mollis Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC76249  Symphoricarpos mollis Denis Kearns 1981-7-23 414 Humboldt Near Whiteys Peak. 1524 Comment
  JEPS13646  Symphoricarpos mollis Lincoln Constance 1934-6-3 808 Humboldt road from High Rock to Horse Prairie (High Rock (on Redwood Hwy, 1 mi n of Dyerville)); South Fork Eel River, Bull Creek Region Comment
  UC602502  Symphoricarpos mollis Joseph P. Tracy 1936-6-28 15013 Humboldt near Murphy Meadows (Bald Mt); Bald Mt. 975 Comment
  UC1199309  Symphyotrichum bracteolatum Joseph P. Tracy 1919-9-14 5209 Humboldt near mouth, (valley of Trinity River) Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UC418990  Symphyotrichum chilense H. E. and S. T. Parks 1930-9-14 772 Humboldt Big Lagoon Comment
  OBI17003  Symphyotrichum chilense Carl B. Wolf 1937-9-14 9355 Humboldt Redwood hwy 4 mi N of Loleta 8 Comment
  CAS-BOT-BC98928  Symphyotrichum foliaceum var. parryi Joseph P. Tracy 1937-8-12 15634 Humboldt Snow Camp 1402 Comment
  JEPS35821  Symphyotrichum subspicatum Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8966 Humboldt 9.5 mi n and w, s of Cape Mendocino Petrolia; Cape Mendocino Comment
  CDA5590  Symphytum asperum T. C. Fuller 1961-9-28 7047 Humboldt Iverson property, Arcata Bottoms, 0.5 mile south of the Mad River, 0.75 mile west of Highway 101, 2 miles north of Arcata. 0 Comment
  RSA46713  Synthyris reniformis Doris K. Kildale 1926-3-20 1538 Humboldt Big Lagoon. Comment
  HSC26095  Synthyris reniformis Tim Baroni 1973-1-2 Humboldt 1.9 mi. above Angel Ranch on the road to Snow Camp 793 Comment
  UC249515  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
  UCD86185  Taeniatherum caput-medusae A. H. Murphy 1947-6-7 s.n. Humboldt Sherman Flat, ca. 3.5 miles north of Blocksburg. Comment
  SEINET3816604  Tanacetum bipinnatum Bassett Maguire 1934-6-9 15318 Humboldt On sand dunes, clam beach, 15 miles from North Eureka Comment
  CAS-BOT-BC376732  Tanacetum bipinnatum A. A. Heller 1937-6-12 15900 Humboldt On the coast at Trinidad just below the road leading up to the lighthouse on Trinidad Head Comment
  CAS-BOT-BC376733  Tanacetum bipinnatum A. A. Heller 1924-7-23 13875 Humboldt Along the beach at the mouth of Little River near Trinidad Comment
  CHSC55891  Tanacetum camphoratum L. P. Janeway 1987-7-31 2543 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  SBBG65851  Tanacetum vulgare L. Rowntree -Jul-1931 Humboldt near Ferndale Comment
  RSA167418  Taraxacum officinale Joseph P. Tracy 1943-4-10 17415 Humboldt Eureka Comment
  HSC6260  Taraxacum officinale J. L. Baker 1965-3-11 10 Humboldt 4 mi. N of Arcata on North Bank Rd. Comment
  UC642289  Tauschia kelloggii Joseph P. Tracy 1936-8-2 15079 Humboldt French Camp Ridge 1066 Comment
  UC1222750  Tauschia kelloggii Joseph P. Tracy 1950-8-18 19332 Humboldt 1/2 mi along the Blocksburg Road w from the bridge across Larrabee Creek; along Larrabee Creek Comment
  SJSU685  Taxus brevifolia A. W. Jacobs 1941-6-15 Humboldt border of road (Hwy 299) between Blue Lake & Redwood Creek Comment
  UC1198891  Tellima grandiflora Joseph P. Tracy 1949-6-6 18311 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC447405  Tellima grandiflora Alice Eastwood 1907-4-22 22 Humboldt Trinidad, Light-house Point Comment
  CAS-BOT-BC447406  Tellima grandiflora Kenneth Clark 1980-3-23 536 Humboldt Point Delgada; Alluvial terrace of south fork Dead Man's Gulch; Vascular Plants of Shelter Cove Comment
  UC1196164  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1947-4-27 17672 Humboldt Metropolitan 30 Comment
  UC162827  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1906-6-24 2501 Humboldt near Fields Landing; Northern Coast Region, Region about Humboldt Bay, Humboldt H 0 Comment
  UC673195  Thlaspi montanum var. montanum Lincoln Constance and Reed C. Rollins 1942-5-11 2877 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  LA31711  Thuja plicata C. B. Wolf; 1930-10-25 1764 Humboldt 1 mi. above Blue Lakes on road to Willow Creek (Lord Ellis Road) 243 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
  UC275509  Thuja plicata Joseph P. Tracy 1923-11-18 6593 Humboldt Wild Cat Ridge near Ferndale; Northern Coast Ranges, Wild Cat Ridge 457 Comment
  UCD134111  Thuja plicata Jo Ann Olson; Gary R. Robbins 1969-4-27 36 Humboldt On Mattole Road, ca. 1 mile south of Ferndale. 152 Comment
  CAS-BOT-BC88318  Thysanocarpus curvipes Doris K. Kildale 1926-4-25 1803 Humboldt Willow Creek Flat. 152 Comment
  HSC63848  Tiarella trifoliata var. unifoliata M. A. Baker 1979-6-29 964 Humboldt Hopkin's Creek. 750 Comment
  SBBG70435  Tiarella trifoliata var. unifoliata L. Rowntree 1931-7-23 Humboldt Carlotta Comment
  UC154149  Tiarella trifoliata var. unifoliata Mrs. M. H. Manning Sept. 1901 Humboldt near Hupa; near Hupa Comment
  POM48093  Tiarella trifoliata var. unifoliata J. B. Feudge 1923-7-19 58 Humboldt Fortuna. 15 Comment
  RSA191949  Tiarella trifoliata var. unifoliata R. F. Thorne 1957-9-2 18998 Humboldt Burlington State Park, just S of Weott. Comment
  SDSU9571  Tiarella trifoliata var. unifoliata D. F. Howe 1959-8-5 2809 Humboldt Redwood Hwy - #101 alternate 5 miles N of Weott, Drexel Grove. Comment
  UC677699  Tiarella trifoliata var. unifoliata C. C. and S. K. Harris 1936-6-16 660 Humboldt Redwood forest on Yager Road from Carlotta 152 Comment
  UC154107  Tolmiea diplomenziesii Joseph P. Tracy 1908-6 2876 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC1224693  Tolmiea diplomenziesii D. E. Anderson and B. D. Rogers 1964-5-1 1564 Humboldt n of Humboldt State College campus (Jolly Giant creek) Comment
  HSC73176  Tonella tenella M. A. Baker 1980-5-17 1249 Humboldt Near Le Perron Peak 1066 Comment
  UC27661  Tonella tenella Mrs. M. H. Manning Apr 1899 Humboldt Hoopa Valley Comment
  UC585612  Torilis arvensis Mrs. Emma N. Cathey 1936-7 Humboldt near Miranda (Cathey Ranch) 304 Comment
  HSC40005  Toxicodendron diversilobum Linda M. Barker 1976-9-3 1697 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC62890  Tradescantia ohiensis J. M. DiTomaso 1979-5-20 1056 Humboldt 0.3 mi. N of Trinidad on Stagecoach Rd. Comment
  HSC63067  Tradescantia ohiensis David Wheeler 1979-5-17 115 Humboldt Stagecoach Rd., 1 mi. from the Trinidad Post Office Comment
  CAS-BOT-BC517421  Triantha occidentalis subsp. occidentalis Joseph P. Tracy 1914-9-6 4606 Humboldt Northern Coast Ranges, Bald Mountain between High Prairie and Snow Camp, near Seidell Ranch 1219 Comment
  RSA239714  Trientalis latifolia Larry E. DeBuhr 1973-4-23 985 Humboldt Richardson Grove Redwood State Park. Comment
  UC165509  Trifolium albopurpureum var. albopurpureum Harley P. Chandler 1901-6-1 1321 Humboldt Hupa Indian Reservation (now spelled Hoopa on modern maps) North Coast Ranges 152 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
  UC1197240  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1915-6-27 4659 Humboldt near Carlotta (Yager Creek); Northern Coast Ranges 60 Comment
  UC160917  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1910-6-5 3151 Humboldt Ocean Beach Northernb Coast Ranges, Humboldt Bay Comment
  HSC34958  Trifolium bifidum Thomas W. Nelson 1975-5-24 1872 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1197180  Trifolium bifidum var. decipiens J. P. Tracy 1899-5-26 47 Humboldt immediate vicinity Eureka 0 Comment
  UC1541261  Trifolium breweri Harold E. Parks May 1935 4997 Humboldt Egg Point Trinidad Comment
  HSC44835  Trifolium eriocephalum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3603 Humboldt Along old trail N of Alder Spring 1555 Comment
  HSC99714  Trifolium eriocephalum subsp. eriocephalum Glenn W. K. Shelton 2010-7-10 14 Humboldt Due N of Buck Mtn. on FS Rd. 1N08A 1159 Comment
  UCD108946  Trifolium fragiferum P. B. Kennedy 1929-6-14 10326 Humboldt Eureka. Niles Ranch. Comment
  HSC100534  Trifolium fucatum Carl C. Marshall Mar 1886 18 Humboldt Hills. Comment
  HSC45123  Trifolium fucatum R. Sutherland 5 .19578 Humboldt 128 Comment
  UC1197196  Trifolium gracilentum Joseph P. Tracy 1901-5-18 1096 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  UC1223452  Trifolium howellii Joseph P. Tracy 1934-7-18 13449 Humboldt at top Grouse Mtn 1524 Comment
  UC162782  Trifolium hybridum J. P. Tracy 1904-7-3 2108 Humboldt vicinity Eureka 0 Comment
  HSC57305  Trifolium longipes subsp. oreganum Griswold, Butler 1979-7-10 6210 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  HSC45137  Trifolium microcephalum R. Sutherland 1978-6-1 4 .1678 Humboldt 213 Comment
  HSC45142  Trifolium microcephalum R. Sutherland 1978-4-23 21 .23478 Humboldt 732 Comment
  CHSC52933  Trifolium microdon L. P. Janeway 1984-5-16 786 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd ca. 1/4 mile north of the boat ramp. 3 Comment
  UC1197505  Trifolium microdon Joseph P. Tracy 1932-5-16 10109 Humboldt near Samoa; Northern Coast Ranges, Humboldt Bay 6 Comment
  POM214881  Trifolium microdon Joseph P. Tracy 1927-6-5 8102 Humboldt Valley of S Yager Creek Comment
  SEINET6935126  Trifolium microdon Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC1223348  Trifolium microdon Joseph P. Tracy 1950-6-18 18840 Humboldt 1 mi e Cape Mendocino (at roadside on top of ridge); Cape Ridge 304 Comment
  HSC15223  Trifolium obtusiflorum J. E. Lankila 1962-5-6 15 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  UC1197489  Trifolium oliganthum Joseph P. Tracy 1922-4-30 6002 Humboldt near Willow creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC160937  Trifolium oliganthum Joseph P. Tracy 1903-5-23 1895 Humboldt Alder Point Eel River; Northern Coast Ranges 152 Comment
  UC1223324  Trifolium repens Joseph P. Tracy 1936-6-28 15021 Humboldt at Lake Prairie Bald Mtn 1066 Comment
  HSC45167  Trifolium repens R. Sutherland 1978-5-16 8 .16578 Humboldt 157 Comment
  HSC45117  Trifolium variegatum R. Sutherland 1978-5-19 11 .19578 Humboldt 134 Comment
  UC1223542  Trifolium variegatum Joseph P. Tracy 1933-7-9 12649 Humboldt Brannan Mtn 1066 Comment
  UC1197560  Trifolium variegatum var. variegatum Joseph P. Tracy 1927-5-8 7993 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  UC165592  Trifolium variegatum var. variegatum Harley P. Chandler May, 1901 1169 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  JEPS4384  Trifolium variegatum var. variegatum Lincoln Constance 1934-5-31 764 Humboldt along n side Bull Creek (Bull Creek Flat, from w boundary of park to Grasshopper Park Rd (Squaw Creek)); South Fork Eel River, Bull Creek region Comment
  HSC45126  Trifolium willdenovii R. Sutherland 1978-5-19 7 .19578 Humboldt 131 Comment
  UC1197515  Trifolium willdenovii Joseph P. Tracy 1932-6-26 10278 Humboldt near North Yager Creek (Jaqua); Northern Coast Ranges 609 Comment
  UC198572  Trifolium wormskioldii Joseph P. Tracy 1917-5-30 4801 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  HSC15189  Trifolium wormskioldii S. J. Moore 1965-5-10 33 Humboldt Near mouth of Little River Comment
  UC1223372  Trifolium wormskioldii Joseph P. Tracy 1950-6-18 18767 Humboldt w Petrolia (hills betw town and ocean) Comment
  HSC90808  Triglochin concinna Gail Newton 1982-5-2 2511 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1100175  Triglochin maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1169 Humboldt 1 mi s Fields Landing; Eel River Valley Comment
  HSC101814  Trillium kurabayashii Kjirsten A. Wayman 2012-5-4 315 Humboldt Bald Hills Road, 19 mi. SE of Hwy 101, N 41.14003 deg. W 123.85954 deg. 916 Comment
  CHSC2320  Trillium ovatum 1933-4-15 Humboldt Comment
  CHSC2321  Trillium ovatum V. Holt 1933-4-11 Humboldt Comment
  CHSC62019  Trillium ovatum J. R. Biddison 1993-4-7 13 Humboldt Phillipsville, Avenue of the Giants, w side of road, 1 mi s of hwy 101 junction. 45 Comment
  HSC57025  Trillium ovatum Overton, Butler 1979-7-24 9646 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC71798  Trillium ovatum Gail Newton 1980-6-16 169 Humboldt Near Monks Camp. 1097 Comment
  RSA183586  Trillium ovatum R. D. Zortman 1963-3-16 14 Humboldt 5 miles northeast of Arcata; south of the Mad River, off Warren Creek Road. 91 Comment
  UC1197828  Trillium ovatum Joseph P. Tracy 1913-3-9 4019 Humboldt near Hydesville Hydesville; Northern Coast Region 60 Comment
  HSC24053  Trillium ovatum subsp. oettingeri J. O. Sawyer 1971-6-16 2387 Humboldt Lipps Camp 1433 Comment
  SEINET10458940  Triodanis biflora Tracy TRACY 2198 Humboldt EUREKA Comment
  HSC26329  Triphysaria eriantha subsp. eriantha Thomas W. Nelson 1971-4-16 382 Humboldt N of Coast Guard Station on Samoa Peninsula Comment
  UC1198035  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1918-5-5 4926 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay Comment
  UC168994  Triphysaria pusilla Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5390 Humboldt Hubbard's Station; North Coast Ranges, Hubbard's Station Comment
  HSC89902  Trisetum canescens Leonel Arguello 1989-7-22 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC1103150  Trisetum canescens J. P. Tracy 1900-7-4 877 Humboldt opposite Eureka (Sand Hills of Ocean Beach at Samoa); Samoa Comment
  UC905633  Trisetum canescens David D. Keck 1948-6-2 6006 Humboldt 4 mi w Willow Creek (near boundary of Six River National Forest, e side of Rocky Ridge, e of Berry's summit); Rocky Ridge 457 Comment
  SEINET200769  Triteleia bridgesii Joseph P. Tracy 1949-6-25 18345 Humboldt Trinity Summit Mud Springs in serpentine area 1341 Comment
  HSC35868  Triteleia laxa Thomas W. Nelson, James Nelson 1975-8-5 2126 Humboldt Beside rd. to Table Bluff 1.0 mi. W of Copenhagen Rd. Comment
  UC1197717  Triteleia laxa Joseph P. Tracy 1938-6-17 15966 Humboldt between Petrolia and coast; Domingo Hill 152 Comment
  UC15045  Triteleia peduncularis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5503 B Humboldt North Coast Ranges Comment
  SEINET200846  Triticum aestivum J. P. Tracy 1922-7-16 6102 Humboldt CULTIVATED; Eureka 0 Comment
  HSC72050  Tropaeolum majus J. M. DiTomaso 1979-5-10 947 Humboldt Corner of 13th and Union St., Arcata. Comment
  HSC100450  Troximon heterophyllum Carl C. Marshall May 1887 494 Humboldt Kneeland Prairie. Comment
  CAS-BOT-BC85851  Tsuga heterophylla P. C. Everett; E. K. Balls 1959-10-25 23963 Humboldt 22 mi. W. from Willow Creek along U.S. Hwy. 299 to Arcata 579 Comment
  UCD135134  Tsuga heterophylla Roman Gankin 1965-8-7 563 Humboldt Big Lagoon County Park. Comment
  CAS-BOT-BC85894  Tsuga heterophylla L. R. Abrams 1918-6-17 7211 Humboldt Between Briar's Resort and Bald Mt. Comment
  HSC93497  Typha latifolia Gordon Leppig 1998-6-8 899 Humboldt Arcata Marsh and Wildlife Sanctuary, SW side of pond. 2 Comment
  CAS-BOT-BC91106  Umbellularia californica P. C. Everett; E. K. Balls 1959-10-25 23958 Humboldt 12.4 miles west from Willow Creek along U.S. Highway 299 to Arcata. 655 Comment
  RSA168809  Umbellularia californica Joseph P. Tracy 1950-12-10 18600 Humboldt Vicinity of Carlotta. 30 Comment
  UC1175130  Umbellularia californica P. C. Everett and E. K. Balls 1959-10-25 23958 Humboldt 12.4 mi w from Willow Creek (along U.S. Hwy 299 to Arcata) 655 Comment
  UC582438  Uropappus lindleyi Joseph P. Tracy 1927-5-14 8008 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC21672  Urtica dioica subsp. gracilis R. D. Zortman 1963-5-5 34 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC89472  Urtica dioica subsp. gracilis P. A. Daly 1986-3-12 95 Humboldt Trinidad Head, along trail 61 Comment
  HSC49505  Utricularia macrorhiza R. York 1979-4-13 225 Humboldt Behind grammar school in Fieldbrook. Comment
  UC562490  Vaccinium membranaceum Joseph P. Tracy 1936-8-7 15096 Humboldt head of Little Hors-Linto Creek Trinity Summit, Little Hors-Linto Creek 1371 Comment
  UCD118069  Vaccinium membranaceum Joseph P. Tracy 1942-6-23 17243 Humboldt Trinity Summit, near Box Camp. 1524 Comment
  CAS-BOT-BC199307  Vaccinium ovatum Volney Rattan 1879-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC199308  Vaccinium ovatum Doris K. Kildale 1928-5-19 5203 Humboldt Chalk Mountain Comment
  UC630486  Vaccinium ovatum H. E. and S. T. Parks Apr 1937 5638 Humboldt Spruce Cove Trinidad Comment
  UCD118087  Vaccinium ovatum B. L. Kay 1955-6-7 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  POM118490  Vaccinium parvifolium Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  RSA1368  Vaccinium parvifolium E. R. Johnson 1929-08 1412 Humboldt Arcata Redwood Park 91 Comment
  CAS-BOT-BC5073  Valeriana sitchensis subsp. scouleri Alice Eastwood; John Thomas Howell 1937-6-24 4868 Humboldt 5 miles E of Berry Summit Comment
  HSC44529  Valeriana sitchensis subsp. sitchensis Brad Klipfel 1973-7-1 137 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC416772  Valeriana sitchensis subsp. sitchensis Mrs. M. H. Manning Aug. 1899 Humboldt Trinity Summit Comment
  JEPS52977  Vancouveria W. L. Jepson 1932-8-9 16541 Humboldt Deerfoot Glade Bull Creek; , Deerfoot Glade Comment
  CAS-BOT-BC76045  Vancouveria hexandra Mrs. H. C. Cantelow 1936-5-17 s.n. Humboldt 4.5 miles east of Orick. Comment
  CAS-BOT-BC76047  Vancouveria hexandra Doris Kildale 1931-5-10 10677 Humboldt Snow Camp. Comment
  CAS-BOT-BC76054  Vancouveria hexandra L. R. Abrams 1916-7-11 5983 Humboldt Between Blocksberg and Bridgeville. Comment
  HSC68321  Vancouveria hexandra J. P. Smith 1973-5-26 6841 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC26868  Vancouveria hexandra Clifton Raymond Chesbrough 1973-6-19 91 Humboldt 1/2 mi. N of College Cove Comment
  UCSB15917  Vancouveria hexandra 1962-6-8 Humboldt Along U.S. Highway 101, 8 miles north of Orick 60 Comment
  CAS-BOT-BC76087  Vancouveria planipetala Ira L. Wiggins 1932-6-18 5865 Humboldt Along Jacoby Creek, 2 miles east of Bayside. Comment
  HSC73140  Vancouveria planipetala M. A. Baker 1980-5-18 1294 Humboldt Near Black Mtn. 1006 Comment
  HSC99653  Vancouveria planipetala Jimerson, J. Pageau 1979-6-13 544 Humboldt Near Onion Lake, close to the town of Orleans 549 Comment
  CAS-BOT-BC76091  Vancouveria planipetala Clarence R. Quick 1959-7-24 59 -36 Humboldt Bee Mountain, ca. 12 miles southwest of Orleans. Comment
  UCSB23564  Vancouveria planipetala Keefe, Joseph 1967-7-8 Humboldt Redwood Forest, Avenue of the Giants, 2.4 miles north of Miranda 121 Comment
  CDA30233  Verbena lasiostachys M. K. Beyers, I. Shepardson 2009-9-13 240 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
  UC154022  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1908-6 2775 Humboldt opposite Buck Mt; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC64192  Veronica americana J. O. Sawyer, M. A. Ericksen 1979-6-23 3376 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC45251  Veronica americana M. Alcasas 1978-6-3 119 Humboldt On Titlow Hill Rd., 1.3 mi. from Hwy. 299 1463 Comment
  RSA20851  Veronica americana Carl B. Wolf 1937-6-18 8891 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  UC1222425  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1925-5-30 7016 Humboldt 3 mi w of Bridgeville (Kemp's Ranch); Kemp's Ranch 198 Comment
  SEINET6988462 Image available Veronica peregrina var. xalapensis Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  RSA245256  Veronica scutellata John R. Keith 1973-5-15 s.n. Humboldt Approximately 200 yards east of jct of Guintoli Ln. and West End Road. Comment
  UC582548  Veronica scutellata Joseph P. Tracy 1927-7-17 8275 Humboldt on lower w foothills of Chaparral Mountain (Three Cabins); North Coast Ranges, , Three Cabins 457 Comment
  HSC48401  Veronica serpyllifolia subsp. humifusa Brad Klipfel 1973-6-10 90 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC99374  Veronica serpyllifolia subsp. humifusa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 23 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC99734  Vicia americana Jimerson, J. Pageau 1979-5-24 471 Humboldt Near Orleans 226 Comment
  HSC70657  Vicia americana var. americana Gail Newton 1980-7-14 1534 Humboldt Near Deadman Ridge 1097 Comment
  UC1197467  Vicia americana var. americana Joseph P. Tracy 1914-5-14 4437 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  UC1222594  Vicia americana var. americana Harold E. Parks and Joseph P. Tracy 1942-6-23 17231 Humboldt vicinity Box Camp; Trinity Summit 1463 Comment
  UC160967  Vicia americana var. americana Mrs. M. H. Manning May 1902 Humboldt Hupa Comment
  UCD108675  Vicia hirsuta Linda M. Barker 1976-5-13 1479 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCR104583  Vicia sativa subsp. nigra A. R. Alexander 1998-4-9 10 Humboldt US Highway 101 and Giuntoli Lane, near shopping center, Arcata 152 Comment
  HSC38931  Vicia sativa subsp. nigra Linda M. Barker 1976-5-13 1481 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  HSC48780  Vicia sativa subsp. nigra Brad Klipfel 1974-5-11 337 Humboldt SW side of Big Lagoon Comment
  UC1197472  Vicia sativa subsp. sativa J. P. Tracy 1909-7-22 3025 Humboldt immediate vicinity Eureka 0 Comment
  HSC59115  Vicia sativa subsp. sativa Terry Roth 1979-5-29 93 Humboldt Arcata, corner of Alliance Rd. and Westwood Ct. Comment
  HSC71614  Vicia tetrasperma J. P. Smith 1973-5-26 6832 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC89577  Vicia tetrasperma K. Grenier, Leonel Arguello 1989-6-19 353 Humboldt Bald Hills Grasslands. At Stagecoach Stop. Comment
  RSA168917  Vicia tetrasperma Joseph P. Tracy 1948-8-7 18083 Humboldt Fickle Hill, 6 miles Southeast of Arcata. 610 Comment
  HSC89999  Vicia villosa subsp. villosa Leonel Arguello 1989-6-24 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, end of the Fernstrom-Root trail Comment
  HSC3227  Vinca major Eugene Andreuccetti 1964-4-30 31 Humboldt 300 yards from Iverson Rd., along Mad River. Comment
  CAS-BOT-BC263950  Viola adunca L. B. Kildale 1927-7-10 3723 Humboldt Gans Prairie, N Bald Hills Road 609 Comment
  CAS-BOT-BC263954  Viola adunca W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula Comment
  HSC21761  Viola adunca R. D. Modafferi 1965-3-13 15 Humboldt 0.6 mi. N of Trinidad on Trinity St. Approx. 1/2 mi. W of 30 Comment
  HSC21769  Viola adunca Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon Co. Park, SW corner of Big Lagoon; side of road near parking lot Comment
  UC1198429  Viola adunca Joseph P. Tracy 1918-4-14 4872 Humboldt s end of Dows Prairie; Northern Coast Ranges 30 Comment
  UC1761955  Viola adunca Mrs. Wilder 1926-4 Humboldt Carlotta Comment
  POM161057  Viola cuneata Joseph P. Tracy 1926-6-6 7560 Humboldt Hoopa Mountain. On road west from Hoopa Valley. 915 Comment
  HSC21790  Viola glabella Lincoln Constance 1934-5-26 652 Humboldt Bull Creek Region; N Dyerville Flat grove near Founder's Tree 49 Comment
  HSC21799  Viola glabella D. E. Anderson 1965-5-15 3688 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC71038  Viola glabella Thomas W. Nelson 1977-4-20 3330 Humboldt Along USFS Road 1N15 at summit 915 Comment
  UC902116  Viola glabella Joseph P. Tracy 1942-6-23 17242 Humboldt near Box Camp; Trinity Summit 1524 Comment
  SDSU11371  Viola glabella L. N. Harvey Humboldt September, 1930 Comment
  HSC33151  Viola hallii Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1245 Humboldt Horse Mtn. area, W of microwave tower 1220 Comment
  JEPS50250  Viola macloskeyi Hilda W. Grinnell 1932-7-19 30 Humboldt McKay Camp; South Fork Mountain, McKay Camp 1676 Comment
  UCD110697  Viola ocellata R. N. Raynor 1935-4-15 s.n. Humboldt Fort Seward. Comment
  RSA239691  Viola palustris Larry E. DeBuhr 1973-4-23 992 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  HSC99094  Viola praemorsa subsp. praemorsa C. Witte 2007-5-8 7 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  UC1222514  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1950-4-20 18607 Humboldt opposite Buck Mountain (Along Van Duzen River, Dinsmore's); Dinsmore's, Van Duzen River 762 Comment
  UC35265  Viola praemorsa subsp. praemorsa W. C. Blasdale 1896-6-7 Humboldt Kneeland's Comment
  HSC67177  Viola purpurea subsp. purpurea Thomas W. Nelson, James Nelson 1980-6-10 5428 Humboldt Along NE side of Red Mtn. 1433 Comment
  HSC70254  Viola purpurea subsp. quercetorum M. A. Baker 1980-6-8 1921 Humboldt Near Buck Flat. 1554 Comment
  SBBG4837  Viola sempervirens H. and M. Dearing 1933-5-16 1066 Humboldt N of Weott Comment
  UC35300  Viola sempervirens Chesnut and Drew 1888-7-8 Humboldt Kneeland Prairie Comment
  UC709441  Viola sempervirens Joseph P. Tracy 1941-4-8 16854 Humboldt head of Willow Creek ( Willow Creek Canyon, along Trinity Highway); Willow Creek Canyon, Willow Creek 762 Comment
  UC35268  Viola sheltonii W. C. Blasdale 1896-6-9 Humboldt top of South Fork Mountain Comment
  UC1197980  Vitis californica Joseph P. Tracy 1933-7-3 12630 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  SEINET10918233  Vitis californica Unknown 1988-7-25 Anonymous s.n Humboldt Hwy Am [P--], Chestnut & Drew Comment
  HSC24254  Vulpia bromoides D. E. Anderson 1970-5-21 5078 Humboldt Scotia bluffs. Comment
  UC204712  Vulpia microstachys var. microstachys Joseph P. Tracy 1918-5-26 4942 Humboldt Redwood Creek Northern Coast Ranges, Grouse Mt. (lower foothills of Grouse Mt) 762 Comment
  UC1145190  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-5-29 14825 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  HSC71718  Vulpia myuros M. A. Baker 1980-6-26 2446 Humboldt Near Sims Creek 610 Comment
  HSC73252  Vulpia myuros M. A. Baker 1980-5-18 1319 Humboldt Near Black Mtn. 1006 Comment
  HSC9937  Vulpia myuros J. W. Johnson 1962-4-8 1230 Humboldt Arcata, Mad River Co. Park Comment
  HSC97495  Whipplea modesta Cara Witte 2007-5-29 133 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  UC1198903  Whipplea modesta Joseph P. Tracy 1942-5-16 17347 Humboldt 1 mi s Garberville (along river) 152 Comment
  SEINET10898891  Whipplea modesta Botany 1985-5-10 BOTANY s.n. Humboldt T5n,r63,sec.34,h.m.; Grays falls campground, off hwy 299, about halfway down to River on shaded slope, habitat included madrone, douglas fir, and canyon live Oak 241 Comment
  HSC70753  Woodwardia fimbriata R. York 1980-5-17 530 Humboldt Near Le Perron Peak 1066 Comment
  UCSB29327  Woodwardia fimbriata Phelps, M. 1972-3-20 Humboldt 1.5 miles from Garberville along Old Briceland Road, 0.5 miles N of roadside. 213 Comment
  JEPS32063  Wyethia angustifolia Lincoln Constance 1934-5-29 725 Humboldt Upper Look Prairie (South Fork Eel River, Bull Creek Region); South Fork Eel River, Upper Look Prairie, Bull Creek Region 365 Comment
  UC582641  Wyethia angustifolia Joseph P. Tracy 1937-7-24 15524 Humboldt prairie in Devil's Hole; Trinity Summit 1676 Comment
  JEPS109808  Wyethia longicaulis Dean W. Taylor 2004-6-24 19132 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit 1310 Comment
  UC582640  Wyethia longicaulis Joseph P. Tracy 1932-6-26 10253 Humboldt Valley of South Yager Creek 762 Comment
  UC673077  Xanthium strumarium Joseph P. Tracy 1940-10-5 16747 Humboldt Trinidad 3 Comment
  HSC56947  Xerophyllum tenax Overton, Butler 1979-7-23 9437 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC1173649  Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp 1066 Comment
  UC1225857  Xerophyllum tenax Joseph P. Tracy 1947-7-9 17862 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC527082  Xerophyllum tenax Doris K. Kildale 1926-4-25 1814 Humboldt Hoopa Mountain 792 Comment
  CAS-BOT-BC527083  Xerophyllum tenax L. R. Abrams No date on lable. 7096 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  HSC12355  Zeltnera muehlenbergii Steve Dorei 1970-10-31 130 Humboldt Scotia Bluff area Comment
  HSC8417  Zeltnera muehlenbergii Paul Shields Jul 1955 Humboldt 3 mi. S of Myers Flat Comment
  HSC99034  Zigadenus micranthus Cara Witte 2008-7-1 775 Humboldt Horse Mountain Botanical Area. Along 6N36. Approximately .6 miles southeast from Radio Towers. 1476 Comment



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