Search Results — 2000 specimen records retrieved (1396 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=HUMBOLDT; Source=All;   

Mapping Options:

BerkeleyMapper with county and bioregion layers
BerkeleyMapper without layers.
KML export
(Note: only records with coordinates are mappable)

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/cch_archive/).
 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.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SBBG11073  Abies grandis D. E. Breedlove 1961-7-4 658 Humboldt US Hwy 299, 3.1 mi E of the N fork of the Mad River 502 Comment
  JEPS47996  Abies magnifica var. magnifica W. L. Jepson 1902-7-16 2043 Humboldt Trinity Summit 2133 Comment
  HSC70562  Abies procera M. A. Baker 1980-7-19 3042 Humboldt Near Bret Hole. 1814 Comment
  CAS-BOT-BC233800  Abronia umbellata H. E. Parks 1941-9-1 24212 Humboldt Mouth of Little River Comment
  RSA246857  Abronia umbellata subsp. breviflora Robert F. Thorne, P. Everett 1965-8-7 35216 a Humboldt Samoa Peninsula. 0 Comment
Read comments
Jan 13 2015
  UC1360497  Acaena novae-zelandiae D. W. Cooper 1966-10-10 Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Hwy. 101. Comment
  RSA186842  Acaena novae-zelandiae T. C. Fuller 1966-10-4 15236 Humboldt 1 mile NW of Fieldbrook Comment
  CAS-BOT-BC331591  Acer macrophyllum Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC12932  Acer macrophyllum C. E. Fellows 1970-11-9 351 Humboldt HSC Campus, S side Bio Greenhouse Comment
  SEINET9350229 Image available Acer macrophyllum Frederick Utech, Knight, Walter; Knight Irja 1984-4-20 84 -175 Humboldt Humboldt County; Ca. 0.4 mi S towards Redcrest on Avenue of Giants from junction with US hwy 101. Trees to 20 ft.; along edge of Redwood Forest Association. Elev: 50 ft Herbarium, Carnegie Museum (CM), Pittsburgh, PA. 15 Comment
  CAS-BOT-BC28586  Achillea millefolium David D. Keck 1944-7-11 5494 Humboldt Cape Mendocino 3 Comment
  HSC4546  Achillea millefolium J. W. Johnson 1961-8-17 1061 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC49782  Achillea millefolium J. P. Smith, Thomas W. Nelson 1977-6-30 9221 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  SBBG70036  Achlys triphylla R. Hartwell 1938-8-3 Humboldt Bull Crk Flat Redwood Grove Comment
  HSC3331  Achlys triphylla Doris K. Kildale 1926-4-2 1716 Humboldt Briceland Bridge Comment
  SEINET201031  Achnatherum occidentale subsp. californicum J. P. Tracy 1932-7-17 10667 Humboldt Trinity Summit ridges E of Corral Prairie; Klamath Mtns 1829 Comment
  UC552728  Achnatherum occidentale subsp. occidentale Joseph P. Tracy 1935-7-26 14272 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  RSA167312  Achyrachaena mollis Joseph P. Tracy 1948-6-13 18054 Humboldt Grassy slopes near Harris Comment
  UCD103770  Acmispon americanus var. americanus Linda M. Barker 1976-6-1 1548 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD104288  Acmispon parviflorus Linda M. Barker 1976-6-1 1557 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  JEPS60386  Actaea rubra W. L. Jepson 1932-7-29 16445 Humboldt Glenbrook Van Duzen R., Grizzly Flat Comment
  UC164786  Adenocaulon bicolor J. P. Tracy 1900-7-22 904 Humboldt immediate vicinity Eureka 0 Comment
  RSA259562  Adiantum aleuticum D. E. Anderson, J. P. Smith 1971-6-28 j- 1250 Humboldt 2.5 miles South of Blue lake along Mad River Comment
  UCD137191  Adiantum jordanii Lincoln Constance 1934-6-4 823 Humboldt Bull Creek Region, South Fork Eel River. Comment
  UC1222668  Agastache urticifolia Joseph P. Tracy 1950-8-8 19279 Humboldt Croghan Hole Trinity Summit; , Croghan Hole 1676 Comment
  POM187915  Ageratina occidentalis Marcus E. Jones 1931-7-16 s.n. Humboldt Junction, East of Arcata. Comment
  UC249533  Ageratina occidentalis Joseph P. Tracy 1922-7-15 6101 Humboldt gravel bar near Blue Lake; Northern Coast Ranges of California, Mad River 15 Comment
  SEINET11854879  Agoseris apargioides J. P. Tracy 1949-1 18441 Humboldt Near Box Camp. Trinity Summit, meadow at Box Camp 1463 Comment
  SD62068  Agoseris apargioides var. maritima Darley F. Howe 1965-8-7 4121 Humboldt Orick. Comment
  SEINET202732 Image available Agoseris grandiflora Joseph P. Tracy 1945-7-15 17513 Humboldt Trinty River Valley at Willow Creek. 152 Comment
  UC1222942  Agoseris grandiflora Joseph P. Tracy 1948-8-8 18093 Humboldt Iaqua School House Iaqua Comment
  UC1222928  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1950-7-15 19047 Humboldt 1 mi n Willow Creek; Trinity River Comment
  CAS-BOT-BC46095  Agoseris hirsuta Doris K. Kildale 1927-6-26 3587 Humboldt Cape Mendocino Comment
  UC1103376  Agrostis exarata Joseph P. Tracy 1934-6-23 13252 Humboldt along river near Blue Lake; Mad River 15 Comment
  UC184150  Agrostis exarata Joseph P. Tracy 1912-7-21 3785 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC212878  Agrostis exarata Joseph P. Tracy 1919-9-18 5226 Humboldt Northern Coast Ranges, Trinity Summit 1889 Comment
  UC249865  Agrostis exarata Joseph P. Tracy 1924-7-13 6729 Humboldt in bog Northern Coast Region, Big Lagoon 6 Comment
  UCSB51224  Agrostis exarata Almanza, Ed 1976-7-15 Humboldt Big Lagoon Campground, Big Lagoon Comment
  HSC64165  Agrostis hallii J. O. Sawyer, K. A. Sawyer 1979-6-24 3409 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UC187118  Agrostis hallii Joseph P. Tracy 1911-7-4 3288 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity 182 Comment
  UCSC000097  Agrostis hallii H. S. Yates 1936-6-16 5674 Humboldt 1 mile N.E. of Samoa Samoa - Eureka 3 Comment
  UC1151676  Agrostis idahoensis A. H. Murphy 1951-8-17 89 Humboldt ca 15 mi ne Bridgeville (Racetrack Springs, South Fork Mtn., Humboldt Co.--Trinity Co. line); South Fork Mountain, Racetrack Springs 1219 Comment
  UC1145063  Agrostis oregonensis Joseph P. Tracy 1941-8-24 17039 Humboldt near McKay Camp (in wet meadow); South Fork Mountain 1676 Comment
  UC1145065  Agrostis oregonensis Joseph P. Tracy 1950-7-31 19243 Humboldt swampy places near summit; Grouse Mountain 1615 Comment
  HSC96541  Agrostis pallens Gordon Leppig 1997-8-3 645 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC526778  Agrostis variabilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8948 Humboldt along summit South Fork Mountain (near Blake lookout); Northern Coast Ranges, along summit South Fork Mountain 1737 Comment
  HSC47784  Aira caryophyllea Michael A. Watkins 1978-6-10 10 Humboldt Arcata, E side of 7th St. overpass to Hwy. 101 Comment
  HSC8856  Aira caryophyllea T. L. Ackerman 1964-5-15 50 Humboldt Sand dunes across from Fairhaven sign Comment
  HSC8861  Aira caryophyllea unknown May 1933 4003 Humboldt Spruce Cove, Trinidad Comment
  SACT000239  Aira caryophyllea Lyle Bibb 1963-5-11 Humboldt Coastal salt marsh near Arcata Comment
  UC1103301  Aira caryophyllea Joseph P. Tracy 1914-5-14 4439 Humboldt Fort Seward Northern Coast Ranges Comment
  SEINET5335998  Aira caryophyllea W. D. Billings 1940-6-28 1353 Humboldt 1/4 mi. N of Trinidad Comment
  CAS-BOT-BC138330  Aira caryophyllea var. caryophyllea Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  HSC36299  Alisma triviale J. VanHorn 1973-11-17 3 Humboldt E side of Hwy. 101, 2 mi. S of Arcata. Comment
  HSC60375  Alisma triviale J. M. DiTomaso 1979-5-29 1077 Humboldt Arcata Bottoms, 1.7 mi. W of Alliance Rd. on Lanphere Rd. Comment
  RSA517225  Allium acuminatum Barbara Ertter, Thomas J. Delendick 1987-5-16 6920 Humboldt Vista Point just W of Berry Summit on Highway 299, ca. 15 air miles E of Arcata. 915 Comment
  UC1198190  Allium acuminatum Joseph P. Tracy 1911-7-11 3511 Humboldt hills near mouth of Supply Creek; Northern Coast Ranges, Hoopa Valley 182 Comment
  HSC23145  Allium amplectens Norman Dennis 1965-6-19 132 Humboldt 0.25 mi S and 1.0 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  HSC32884  Allium bolanderi var. bolanderi Thomas W. Nelson, James Nelson 1973-5-28 936 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC76218  Allium falcifolium Overton, Butler 1979-7-24 9708 Humboldt Near Black Rock 1554 Comment
  UC666932  Allium falcifolium Joseph P. Tracy 1933-7-11 12658 Humboldt Horse Mountain 1432 Comment
  CHSC33162  Allium hoffmanii Marc Baker 1980-7-11 2799 Humboldt Near Red Mountain. 226 mm from the left and 235 mm from the bottom on the quad map. 225 Comment
  HSC65876  Allium hoffmanii Gail Newton 1980-7-11 1309 Humboldt Near Red Mtn. 1341 Comment
  UC666938  Allium siskiyouense Joseph P. Tracy 1933-7-16 12789 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC535705  Allium unifolium Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  CAS-BOT-BC476627  Allium unifolium Carl B. Wolf 1937-8-11 8900 Humboldt Fleener Creek, 1/2 mi. so. of Centerville. 45 Comment
  HSC48726  Allotropa virgata M. A. Baker 1979-6-6 774 Humboldt Middle of W half of section 2. 610 Comment
  UC1193074  Alnus rhombifolia R. E. Nelson 1950-8-31 154 Humboldt 3 mi nw Neafus Peak; Quadrangle 29D1 609 Comment
  UC213002  Alnus rhombifolia Joseph P. Tracy 1919-12-28 5306 Humboldt 5 mi above Carlotta (river bar); Northern Coast Ranges, Van Duzen River 30 Comment
  CHSC130  Alnus rubra A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  RSA1807  Alnus rubra C. B. Wolf 1930-10-26 1767 Humboldt south edge of Big Lagoon, near the Redwood highway bridge. 3 Comment
  RSA46834  Alnus rubra Doris K. Kildale 1928-3-30 4368 Humboldt Big Lagoon. Comment
  SEINET187411  Alnus rubra H. E. Parks, ST Parks 1938-4-1 24126 Humboldt Spruce Cove Trinidad 61 Comment
  UC503086  Alnus rubra Joseph P. Tracy 1931-9-26 9698 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  POM89806  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit. Comment
  UC54760  Alnus viridis subsp. sinuata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5778 Humboldt Trinity Summit North Coast Ranges (Mendocino, Humboldt, and Del Norte Counties) Comment
  SEINET11674220  Alopecurus geniculatus J. P. Tracy 1951-1 19524 Humboldt back of Everett Beck house (formerly George Fray) bed of former Goose Lake, Hydesville Comment
  CAS-BOT-BC13704  Ambrosia chamissonis Joseph P. Tracy 1937-9-26 15688 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  HSC5662  Ambrosia chamissonis David Adams Oct 1960 Humboldt N bank of the Mad River near mouth 0 Comment
  JEPS94282  Ambrosia chamissonis Vernon Oswald and Lowell Ahart 1997-9-4 8844 Humboldt Big Lagoon County Park at the sw edge of Big Lagoon Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  SEINET200734  Amelanchier alnifolia J. P. Tracy 1908-6-27 2768 Humboldt Valley of Van Duzen River opposity Buck Mtn 762 Comment
  UC14217  Amelanchier utahensis Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  CHSC68792  Ammophila arenaria Vernon Oswald 1997-6-5 8535 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.0 mi south of Hwy. 255. 6 Comment
  SD41378  Ammophila arenaria Edith A. Purer 1932-7-27 4157 Humboldt Samoa, sand dunes. Comment
  HSC3536  Amsinckia douglasiana J. Wendell Howe 1214 Humboldt Comment
Read comments
Feb 11 2018
  SEINET11993512  Anagallis arvensis F. H. Utech 1986-1 86 -406 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  CAS-BOT-BC45137  Anaphalis margaritacea Doris K. Kildale 1926-8-8 2476 Humboldt Dyerville Bridge 45 Comment
  HSC27391  Anaphalis margaritacea Thomas W. Nelson 1970-9-3 230 Humboldt Mad River. Comment
  HSC69754  Anaphalis margaritacea Thomas W. Nelson 1977-9-22 3753 Humboldt At turnoff to Arcata Redwood Co. Comment
  HSC37662  Anaphalis margaritacea R. Sutherland 1976-8-13 1 .13876 Humboldt 152 Comment
  CAS-BOT-BC391775  Anemone deltoidea L. R. Abrams; G. T. Benson 1924-5-18 10736 Humboldt Bull Creek Redwood Grove Comment
  CAS-BOT-BC391778  Anemone deltoidea Lillian Mott 1976-6-29 15 LM75 Humboldt Lady Bird Johnson Redwood Grove, Prairie Creek 60 Comment
  UC1196188  Anemone deltoidea H. E. Parks and Joseph P. Tracy 1931-5-31 9540 Humboldt Lawrence Creek; North Coast Ranges; Lawrence Creek 457 Comment
  HSC74357  Anemone oregana var. oregana Gail Newton 1980-6-17 222 Humboldt Near Onion Mtn. 1341 Comment
  HSC79537  Angelica hendersonii Kenneth Clark 1979-7-1 457 Humboldt Dead Man's Gulch 12 Comment
  UC183691  Angelica hendersonii Joseph P. Tracy 1912-7-21 3764 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  JEPS14104  Angelica hendersonii Joseph P. Tracy 1930-7-21 8896 Humboldt s point of Cape Mendocino Cape Mendocino 3 Comment
  RSA21186  Angelica hendersonii C. B. Wolf 1937-8-11 9145 Humboldt 1/2 mile east of Alton. 21 Comment
  CHSC68551  Angelica lucida Vernon H. Oswald 1997-4-29 8354 Humboldt Humboldt Bay NWR, Hookton Slough Trail along levee along the south side of Hookton Sough. 0 Comment
  HSC56087  Angelica tomentosa G. L. Clifton, Terry Griswold 1979-7-31 11776 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC56149  Angelica tomentosa G. L. Clifton, Terry Griswold 1979-8-1 11992 Humboldt Near Mill Creek, close to the town of Hoopa 1707 Comment
  UC1197369  Angelica tomentosa Joseph P. Tracy 1924-8-9 6793 Humboldt Northern Coast Ranges, Carlotta Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  HSC39181  Anisocarpus madioides D. E. Anderson, J. P. Smith 1971-6-28 - 1220 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC494177  Anisocarpus madioides Parks and Tracy 1930-5-25 864 Humboldt Laribee Valley Comment
  UC302293  Anisocarpus madioides Joseph P. Tracy 1926-6-13 7605 Humboldt near Blue Lake; Northern Coast Ranges 152 Comment
  CAS-BOT-BC77282  Antennaria microphylla Joseph P. Tracy 1935-7-24 14169 Humboldt Trinity Summit, near ranger station 1828 Comment
  UC1199432  Antennaria suffrutescens Joseph P. Tracy 1934-6-14 13216 Humboldt Horse Mountain 1432 Comment
  UCD56156  Anthoxanthum aristatum K. L. Chambers 1984-6-16 5150 Humboldt Bald Hills Road, 7.0 miles past Lady Bird Johnson Grove, Redwood National Park, east of Orick. Comment
  CAS-BOT-BC289126  Anthoxanthum occidentale Joseph P. Tracy 1918-4-21 4882 Humboldt Old Kneeland Road, around Humboldt Bay 304 Comment
  HSC10096  Anthoxanthum occidentale C. R. Phillips 1964-2-29 Humboldt E of Blue Lake on dirt road turning off Hwy 299 Comment
  HSC75434  Anthoxanthum occidentale J. O. Sawyer, M. Erickson 1979-7-15 3413 Humboldt Adroni Research Natural Area, slopes along Aikins Creek 457 Comment
  BLMAR50  Anthoxanthum odoratum Brad Barr June, 1982 50 Humboldt King range, ridgetop of Johnny Jack ridge Comment
  HSC31786  Anthoxanthum odoratum Donald Spalinger 1974-4-20 21 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  HSC89483  Anthoxanthum odoratum P. A. Daly 1986-3-12 70 Humboldt Trinidad Head, along trail 61 Comment
  HSC8951  Anthoxanthum odoratum E. W. Styskel 1963-5-19 43 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  RSA43833  Antirrhinum vexillocalyculatum subsp. breweri H. M. Pollard 1947-8-28 s.n. Humboldt NE Perch Creek, Oreleans region. Comment
  UC1198739  Aphanes occidentalis J. P. Tracy 1905-4-16 2165 Humboldt Immediate vicinity of Eureka (at Bucksport); , Bucksport Comment
  RSA20852  Aquilegia formosa var. truncata Carl B. Wolf 1937-6-18 8892 Humboldt Table Bluff between Humboldt Bay and Eel River 30 Comment
  HSC90416  Arabis breweri var. breweri C. Wilson, P. Kittleson, M. Hardig 1992-3-17 36 Humboldt Titlow Hill Rd., 1.7 mi. S of intersection with Hwy. 299 1037 Comment
  HSC6529  Arabis divaricarpa J. P. Tracy 1932-7-12 10391 Humboldt Trinity Summit 1524 Comment
  HSC57407  Arabis holboellii var. retrofracta G. L. Clifton, Terry Griswold 1979-7-26 10162 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  RSA46725  Aralia californica Doris K. Kildale 1937-9-20 15375 Humboldt Hoopa Comment
  SJSU2568  Aralia californica H. L. Buckalew 1962-7-2 Humboldt junction of Willow Creek & E Fork Willow Creek on Hwy 299, eastern Humboldt County Comment
  UC1408964  Aralia californica Robert F. Thorne and P. Everett 1965-8-5 35137 Humboldt below summit Mt. Chamisal 579 Comment
  UC162626  Aralia californica Joseph P. Tracy 1911-7-5 3320 Humboldt near its mouth Willow Creek (tributary of Trinity R.); Northern Coast Ranges 304 Comment
  HSC7596  Arbutus menziesii J. W. Johnson 1962-3-15 1184 Humboldt In the woods near Lanphere Lane, Christenson Farm, Samoa Peninsula Comment
  OBI33237  Arbutus menziesii David J. Keil 1983-7-1 17263 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  UC1366087  Arbutus menziesii Nancy Ryan Zabriskie and Walter Zabriskie 1969-8-26 233 Humboldt South Fork Eel River below Piercy; South Fork Eel River Comment
  CAS-BOT-BC407747  Arceuthobium abietinum Doris K. Kildale 1926-9-5 2634 Humboldt Lasseck's Peaks, between Goat Camp and Signal Peak 1661 Comment
  HSC74408  Arceuthobium campylopodum Gail Newton 1980-8-10 2022 Humboldt Near Blake Mtn. 1798 Comment
  RSA639544  Arceuthobium tsugense subsp. tsugense Louis C. Wheeler 1952-9-15 6933 Humboldt North Fork, Mad River. Comment
  UC585902  Arctostaphylos Joseph P. Tracy 1931-3-1 9283 Humboldt Miranda South Fork of Eel River 121 Comment
  UCD50535  Arctostaphylos canescens Joseph P. Tracy 1939-8-16 16406 Humboldt Horse Mountain; in open forest of Jeffrey Pine. 1432 Comment
  CAS-BOT-BC25211  Arctostaphylos canescens subsp. canescens J. P. Tracy 1927-5-15 8058 Humboldt Hoopa Mountain. On road W from Hoopa Valley Comment
  CAS-BOT-BC25215  Arctostaphylos canescens subsp. canescens Clarence Roy Quick 1959-7-24 96 .59-40. Humboldt Bee Mt., ca. 12 miles SW of Orleans Comment
  CAS-BOT-BC25209  Arctostaphylos canescens subsp. canescens J. P. Tracy 1941-4-11 16861 Humboldt Willow Creek Canyon, along Trinity Highway Comment
  BLMAR648  Arctostaphylos columbiana Jennifer Wheeler 2011-5-27 648 Humboldt Lacks Creek, Pine Ridge Road, spur at Stormy Saddle 1097 Comment
  CAS-BOT-BC23794  Arctostaphylos columbiana C. Hart Merriam 1920-9-18 s.n. Humboldt Berry Mt. between Trinity River and Redwood Creek Comment
  CAS-BOT-BC23823  Arctostaphylos columbiana Carl B. Wolf 1927-8-30 1241 Humboldt Paradise, 5 or 6 mi. no. of Ettersburg. Comment
  HSC7614  Arctostaphylos columbiana J. Pursell 1964-11-1 1116 Humboldt Hwy. 96, 8 mi. S of Orleans Comment
  RSA622679  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27677 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
  UC1222640  Arctostaphylos columbiana Joseph P. Tracy 1951-3-10 19391 Humboldt 2 mi n Trinidad; Park's place Comment
  UCD50760  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1168 Humboldt 20 road miles east of Hwy. 101 on Bald Hills Road (from Orick). Comment
  RSA15551  Arctostaphylos columbiana var. columbiana C. B. Wolf 1927-8-30 1241 Humboldt Paradise, 5 or 6 miles N of Ettersburg. Comment
  CAS-BOT-BC24824  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13332 Humboldt Ridge 5 mi. s. of Harris on the road towards Bell Springs. 762 Comment
  RSA633016  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27813 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  RSA633024  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27809 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  UCD19961  Arctostaphylos manzanita C. H. Lamoureux; R. Gankin 1956-3-18 1046 Humboldt 2 miles east of Dinsmore, on Hwy 36. Comment
  UCD52072  Arctostaphylos manzanita Joseph P. Tracy 1940-7-14 16689 Humboldt Wilder Ridge (near Kings Peak). 762 Comment
  HSC101660  Arctostaphylos manzanita subsp. glaucescens J. P. Smith, J. O. Sawyer 2011-4-23 13121 Humboldt Along road from Redway to Shelter Cove 212 Comment
  CAS-BOT-BC24364  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-8-22 2575 Humboldt Bald Hills near Imbinson's. Comment
Read comments
Sep 27 2020
  CAS-BOT-BC38838  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1920-9-14 s.n. Humboldt Mts. near Willow Creek (1st ridge west of Trinity River on Willow Creek Road) Comment
  HSC98992  Arctostaphylos manzanita subsp. manzanita Cara Witte 2008-6-4 686 Humboldt Ammon Ridge Road. Approximately 1/2 mile east of intersection with National Forest 1. 1562 Comment
  UC162734  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1911-7-8 3449 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC7658  Arctostaphylos nevadensis Doris K. Kildale 1926-9-5 2615 Humboldt Lassicks Peaks, Red Lassick and Gray Camp 1662 Comment
  UC32672  Arctostaphylos nevadensis Chesnut and Drew 1888-7-21 Humboldt e slope S. Fork Mt. Comment
  CAS-BOT-BC40027  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13992 Humboldt French Camp Ridge 1066 Comment
  UCD52856  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1179 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road (from Orick); French Camp Ridge. Comment
  HSC7699  Arctostaphylos patula J. Pursell 1964-11-1 11112 Humboldt Near Orleans, intersection of Hwy. 96 and Eyesee Rd. Comment
  HSC98732  Arctostaphylos patula Cara Witte 2008-7-2 817 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  CAS-BOT-BC43992  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17503 Humboldt Eureka 45 Comment
  UC21913  Arctostaphylos uva-ursi Harley P. Chandler May 1901 1133 Humboldt Humboldt Bay North Coast Ranges 3 Comment
  UCD52155  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1146 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  HSC67134  Arctostaphylos viscida J. P. Smith, J. O. Sawyer 1973-5-12 6696 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC8975  Aristida oligantha J. P. Tracy 1933-8-27 13000 Humboldt Vicinity of Garberville, Robertson's Range 122 Comment
  CAS-BOT-BC64625  Armeria maritima subsp. californica W. R. Dudley 1899-6-1 723 Humboldt Eureka Peninsula. Comment
  RSA89768  Armeria maritima subsp. californica P. A. Munz 1954-7-25 19874 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  HSC96202  Arnica cernua April A. Allard, Gregory O'Connell 2005-6-24 14 Humboldt 4.5 miles south of Hwy. 299 on NF1 at junction at base of radio tower 1421 Comment
  UC176419  Arnica cordifolia Joseph P. Tracy 1913-6-17 4177 Humboldt at summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC1223000  Arnica discoidea Joseph P. Tracy 1950-8-8 19273 Humboldt near, (2 mi e of town, on trail to Groghan Hole) Box Camp; Trinity Summit 1524 Comment
  RSA12448  Arnica discoidea C. B. Wolf 1934-7-1 5845 Humboldt 2.7 mi from Briceland on rd. to Shelter Cove. 91 Comment
  UC582489  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt near Corral Prairie ((Trinity Summit)); Trinity Summit 1524 Comment
  HSC98764  Artemisia douglasiana Cara Witte 2008-9-13 1036 Humboldt Forest Service Road 4N06. 1/4 mile east of intersection with National Forest 1. Cow Creek Ridge. 1283 Comment
  JEPS36966  Artemisia dracunculus W. L. Jepson 1921-9-10 9464 Humboldt 7 or 8 mi. s. Garberville (near Indian Creek. Redwood Flat, west bank of S. Fork Eel.); South Fork Eel River Comment
  HSC67445  Artemisia pycnocephala J. P. Smith 1971-10-6 4960 Humboldt End of Murray Rd. in McKinleyville. Comment
  SD41467  Artemisia pycnocephala Edith A. Purer 1932-7-27 4123 Humboldt Samoa Comment
  UC1052468  Artemisia pycnocephala H. E. and S. T. Parks 1952-6-1 24495 Humboldt Samoa Comment
  SEINET4343124  Artemisia tridentata subsp. wyomingensis Leila M. Shultz, John S. Shultz 1987-9-17 10750 Humboldt South of I-80, mile post 200 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
  HSC3268  Asarum caudatum D. A. Shally 1965-5-15 50 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  HSC65686  Asarum caudatum M. A. Baker 1980-6-7 1858 Humboldt Near Ammon Creek 732 Comment
  UC6180  Asarum caudatum J. Mello Feb 1897 Humboldt Eureka Comment
  HSC57099  Asarum hartwegii Overton, Butler 1979-7-25 9828 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC47953  Asclepias cordifolia Brad Klipfel 1974-7-23 475 Humboldt Horse Mtn. Comment
  UC154171  Asclepias fascicularis Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  RSA46483  Asclepias fascicularis Doris K. Kildale 1925-9-7 s.n. Humboldt Klamath at mouth of Dillon Cr. 762 Comment
  CAS-BOT-BC65943  Aspidotis densa L. B. Kildale 1930-6-1 9764 Humboldt Klamath River at Bluff Creek Comment
  HSC44354  Aspidotis densa Brad Klipfel 1974-5-8 317 Humboldt Horse Mountain Comment
  UC1541684  Aspidotis densa H. E. Parks and J. P. Tracy 1930-9-15 763 Humboldt Kneeland; Bald Hills Comment
  RSA686386  Aspidotis densa Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain Trail 915 Comment
  RSA134590  Aster chilensis Percy C. Everett, E. K. Balls 1959-10-25 23960 Humboldt 14 miles W of Willow Creek on Hwy 299 to Arcata. 503 Comment
  CDA10236  Aster chilensis E. C. Whitney 1963-9-17 Humboldt Lamphere Road, Arcata. 0 Comment
  RSA167196  Aster oregonensis Joseph P. Tracy 1950-9-22 19378 Humboldt Roadside, about 3 miles southwest of Orleans Comment
  HSC92747  Astragalus agnicidus Robin Bencie 1993-6-15 1 Humboldt Miranda, 2 mi. W of Hwy. 101 on Bear Butte Rd. 500 Comment
  BLMAR220  Astragalus nuttallii Jennifer Anthony-Wheeler 1996-7-26 220 Humboldt King range, growing in open, coastal bluff 10ft W. of windy pt 91 Comment
  UC1199092  Astragalus pycnostachyus var. pycnostachyus Joseph P. Tracy 1930-7-21 8891 Humboldt 3 mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, s Cape Mendocino 3 Comment
  JEPS118177  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  JEPS79824  Astragalus umbraticus Joseph P. Tracy 1914-7 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  HSC56967  Asyneuma prenanthoides Overton, Butler 1979-7-23 9491 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC57001  Asyneuma prenanthoides Overton, Butler 1979-7-24 9585 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC3825  Asyneuma prenanthoides J. Sandborg, F. Sandborg 1968-7-19 54 Humboldt Bluff Creek near Notice Creek, near road below Notice Creek Bridge. Comment
  OBI1147  Athyrium filix-femina Robert J. Rodin 1962-9-5 6979 Humboldt Prairie Creek State Park Comment
  CAS-BOT-BC69521  Athyrium filix-femina subsp. cyclosorum L. R. Abrams 1916-7-11 6053 Humboldt At mouth of Grizzly Creek on Van Duzon River. Comment
  CAS-BOT-BC69525  Athyrium filix-femina subsp. cyclosorum Ira L. Wiggins 1957-6-19 14127 Humboldt 2.5 mi. w. of Pepperwood. Comment
  HSC4341  Atriplex prostrata Jerry Parker 1968-10-7 102 Humboldt N of Mad River outlet. Comment
  UC503075  Azolla filiculoides Joseph P. Tracy 1927-7-16 8258 Humboldt Eureka; Northern Coast Ranges 0 Comment
  CAS-BOT-BC99406  Baccharis pilularis Carl B. Wolf 1927-8-29 1219 Humboldt Seacoast, [Devil's] Devils Gate, south of Cape Mendocino Comment
  UC1004331  Baccharis pilularis W. L. Colwell 1954-11-20 20 Humboldt 3 mi e of, along Eel River South Fork Quadrangle 29B4; Eel River 91 Comment
  UC169039  Baccharis pilularis Joseph P. Tracy 1912-10-20 4003 Humboldt Alton 30 Comment
  UC673030  Baccharis pilularis Joseph P. Tracy 1940-10-17 16764 Humboldt Camp Grant, 2-5 mi e of the South Fork of Eel River Eel River 45 Comment
  CDA10381  Baccharis pilularis subsp. consanguinea T. C. Fuller 1961-9-27 7042 Humboldt Highway 101, 2.5 miles north of Trinidad. 0 Comment
  HSC5120  Baccharis pilularis subsp. consanguinea Jerry Parker 1968-9-19 61 Humboldt Clam Beach 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
  HSC64813  Barbarea verna J. P. Smith, Steve Selva 1970-6-30 4125 Humboldt Comment
  HSC5192  Bellis perennis D. E. Anderson 1961-8-11 1729 Humboldt East of Humboldt State College campus Comment
  UC1051579  Bensoniella oregona Joseph P. Tracy 1923-6-24 6363 Humboldt Bald Mountain in meadow near High Prairie; Northern Coast Ranges, Bald Mountain, nr High Prairie 1066 Comment
  HSC3343  Berberis aquifolium D. E. Anderson 1964-4-24 3544 Humboldt .5 mi. from Hwy. 299, along Titlow Hill Rd. Comment
  HSC40989  Berberis aquifolium Thomas W. Nelson 1976-6-14 2704 Humboldt Along ridge S of E peak of Lassic Peak 1646 Comment
  HSC56351  Berberis aquifolium Griswold, Butler 1979-7-10 6306 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC96208  Berberis aquifolium var. aquifolium J. McIntire, S. Lyon 2005-6-10 6 Humboldt Cold Springs Camp, 7.4 mi. S of Hwy. 299 of F.S. Rd. NF1 1402 Comment
  HSC48473  Berberis aquifolium var. repens J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9934 Humboldt Six Rivers Natl. Forest, along Ishi Pishi Rd., 1.5 mi. from the Ishi Pishi Bridge over the Klamath River 305 Comment
  SDSU13767  Berberis nervosa Harvey 1938-8-14 2318 Humboldt U.S. 299. Arcata-Willow Creek. Comment
  UC1198381  Berberis nervosa Joseph P. Tracy 1926-6-13 7597 Humboldt Liscom Hill road near Blue Lake 152 Comment
  CAS-BOT-BC75803  Berberis pinnata Doris K. Kildale 1929-3-19 7025 Humboldt Top of Liscom Hill, near Essex. 853 Comment
  CAS-BOT-BC412986  Bistorta bistortoides Doris K. Kildale 1925-8-16 1183 Humboldt Trinity Summit - Elk Horn Prairie 1524 Comment
  SD51258  Blechnum spicant Darley F. Howe 1961-8-1 Humboldt 3 mi. N of Arcata on #101. 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
  SEINET11711335  Blechnum spicant K. S. Erdman 1970-1 4820 Humboldt Summit of Gold Bluffs on park road ca 2 mi W of US 101 at Berry Glen, Redwood National Park Comment
  SEINET11716007  Blechnum spicant D. E. Boufford 1973-1 11067 Humboldt Eureka, Sequoia Park Comment
  UC902015  Boechera acutina Harold E. Parks and Joseph P. Tracy 1949-6-25 11678 Humboldt Box Camp Trinity Summit 1463 Comment
  RSA182023  Boisduvalia glabella Joseph P. Tracy 1916-6-19 4726 Humboldt Northern coast ranges: Dobbyn Creek 183 Comment
  JEPS101806  Bolboschoenus maritimus subsp. paludosus Dean W. Taylor 1991-9-15 12290 Humboldt Big Lagoon, along Highway 101 near the mouth of Tom Creek. 3 Comment
  HSC93472  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1998-6-25 851 Humboldt Hwy. 101 marker 81.60, brackish ditch on E side of Hwy. 2 Comment
  HSC16673  Boschniakia strobilacea W. M. Lanphere 1937-5-11 Humboldt Hoopa Comment
  HSC70782  Boschniakia strobilacea Gail Newton 1980-7-24 1768 Humboldt Near Somes Mtn. 1615 Comment
  HSC49373  Boschniakia strobilacea Jimerson, J. Pageau 1979-6-15 580 Humboldt W of Forest Service Rd. 11N21 on the boundary between Sections 27 and 28 762 Comment
  HSC56002  Boykinia major Overton, Butler 1979-7-31 11453 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 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-BC420261  Boykinia occidentalis Ira L. Wiggins 1930-7-22 4694 Humboldt along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  POM232040  Boykinia occidentalis I. L. Wiggins 1930-7-22 4694 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  CAS-BOT-BC420252  Boykinia occidentalis Kenneth Clark 1980-6-14 690 Humboldt Point Delgada quad. north fork Dead Man's Gulch 121 Comment
  CAS-BOT-BC420255  Boykinia occidentalis John Thomas Howell 1931-6-17 6722 Humboldt 18 miles n. of Arcata on Redwood Highway Comment
  CAS-BOT-BC420258  Boykinia occidentalis A. A. Heller 1937-6-12 15890 Humboldt at Bishop Pine Lodge, 3 miles north of Trinidad Comment
  RSA245277  Boykinia occidentalis Brad W. Klipfel 1973-8-17 269 Humboldt Big Lagoon Co. Park. Comment
  HSC38345  Brassica nigra Peter Sorensen 1976-6-14 Humboldt North Spit Comment
  CAS-BOT-BC106289  Brickellia californica E. G. Johnston 1931-8-1 s.n. Humboldt Myers, S. Fork Eel River Comment
  UC1199317  Brickellia californica Joseph P. Tracy 1922-10-8 6119 Humboldt near Blue Lake (Mad River gravel bar, Northern Coast Ranges); Northern Coast Ranges, Mad River 15 Comment
  UC205166  Brickellia californica Joseph P. Tracy 1920-8-15 5354 Humboldt mouth of Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  HSC33766  Briza maxima John S. Palmer 1975-5-24 368 Humboldt Off Samoa Blvd., across from boat landing Comment
  RSA614433  Briza maxima K. L. Chambers 1993-5-5 5717 Humboldt Hwy. 101, where it meets the ocean just south of Orick. Comment
  SEINET3132624  Briza maxima D. E. Anderson 1965-5-8 3626 Humboldt T6N, R2E, sec 29, about 1 mi E Blue Lake on Hwy 299 Comment
  HSC9087  Briza maxima T. M. Mingo May 1965 Humboldt 0.25 mi. N of intersection of Fairhaven Dr. and old Hwy. 101 Comment
  SEINET10835828  Briza maxima Botany 1985-6-1 BOTANY s.n. Humboldt Gray's falls campground off hwy 299. Found in a sunny, open disturbed site Along the road at the entrance to the campground 241 Comment
  SEINET4183122 Image available Briza minor Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15063 Humboldt Meadow, Coolidge, Redwood Park. Comment
  RSA12519  Brodiaea elegans subsp. elegans Carl B. Wolf 1934-7-3 5917 Humboldt 21 miles from Orick on road to Weitchpec. 152 Comment
  UC1197734  Brodiaea elegans subsp. elegans Joseph P. Tracy 1930-7-23 9137 Humboldt Cold Springs Horse Mountain 1432 Comment
  HSC32104  Brodiaea stellaris D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5697 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC32915  Brodiaea stellaris Thomas W. Nelson, Jane P. Nelson 1973-3-28 964 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS5498  Brodiaea stellaris Joseph P. Tracy 1925-5-30 7024 Humboldt on grassy slopes Northern Coast Ranges, McClellan Mountain 822 Comment
  HSC3016  Brodiaea terrestris subsp. terrestris T. M. Mingo May 1965 Humboldt 100 ft. N of parking area at College Cove Comment
  JEPS514  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1933-5-20 12249 Humboldt 1 mi. w. Petrolia; Northern Coast Ranges, Mattole Valley 91 Comment
  SEINET247908  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1927-6-8 8111 Humboldt Trinidad. Comment
  UC666934  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1927-6-8 8111 Humboldt Trinidad 3 Comment
  HSC91591  Brodiaea terrestris subsp. terrestris E. Mackey 1986-6-18 Humboldt Patrick's Point State Park on Ceremonial Rock Comment
  RSA259587  Bromus carinatus D. E. Anderson, J. P. Smith 1971-6-28 1971 Humboldt ca. 2.5 mi. south of Blue Lake along the Mad River. Comment
  CAS-BOT-BC149566  Bromus carinatus var. carinatus Joseph P. Tracy 1935-5-16 13806 Humboldt Eureka. 60 Comment
  UC187098  Bromus carinatus var. carinatus Joseph P. Tracy 1900-6-5 850 Humboldt immediate vicinity of Eureka 0 Comment
  UC526930  Bromus commutatus Joseph P. Tracy 1932-6-4 10135 Humboldt Northern Coast Ranges, Bridgeville Bridgeville; Northern Coast Ranges, Bridgeville 228 Comment
  HSC9274  Bromus diandrus P. W. Shields 1956-4-21 Humboldt 5 mi. SE Arcata. Comment
  SEINET200636 Image available Bromus diandrus Joseph P. Tracy 1904-5-1 2042 Humboldt Eureka 0 Comment
  HSC90690  Bromus hordeaceus Gail Newton 1982-5-31 3554 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC161605  Bromus sterilis Joseph P. Tracy 1933-6-13 12601 Humboldt North Coast Ranges. Bair's Ranch on Redwood Creek. 914 Comment
  HSC97182  Bromus tectorum Benjamin Hart, Erin Lonergan 2007-6-11 5 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1524 Comment
  UC212890  Bromus tectorum Joseph P. Tracy 1919-5-31 5173 Humboldt Northern Coast Ranges, at mouth of Willow Creek, tributary of Trinity River Willow Creek; Northern Coast Ranges, Willow Creek 152 Comment
  CAS-BOT-BC185520  Bromus vulgaris A. A. Heller 1923-7-10 13789 Humboldt At a state redwood camp between Scotia and Pepperwood. Comment
  HSC103973  Cakile maritima C. Reynolds 2015-3-16 18 Humboldt Along Freshwater Beach, due south of the Kuchel Visitor Center 1 Comment
  HSC6610  Cakile maritima Francis Winter 1960-5-6 Humboldt Mouth of Mad River, N of Arcata Comment
  UC1198279  Cakile maritima Joseph P. Tracy 1946-1-13 17517 Humboldt Centerville Beach 3 Comment
  HSC39983  Cakile maritima Linda M. Barker 1976-9-3 1694 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC526774  Calamagrostis breweri Joseph P. Tracy 1932-7-14 10553 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  RSA10029  Calamagrostis canadensis Joseph P. Tracy 1932-7-14 10553 Humboldt Klamath Mountains; Trinity Summit. Wet Meadow at Corral Prairie 0 Comment
  HSC74068  Calamagrostis foliosa Joyce Walker 1980-5-7 Humboldt Four Mile Creek Comment
  UC37779  Calamagrostis foliosa H. N. Bolander 1866-6 6470 Humboldt Mattole District; bluffs along seashore; Mattole District, Humboldt Co. Comment
  CAS-BOT-BC185239  Calamagrostis koelerioides Joseph P. Tracy 1935-7-24 14192 Humboldt Trinity Summit. Near Ranger Station. 1828 Comment
  HSC57987  Calocedrus decurrens G. L. Clifton, Griswold 1979-7-31 11728 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC58323  Calocedrus decurrens Overton, Butler 1979-8-2 12620 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC70641  Calocedrus decurrens R. York 1980-5-18 592 Humboldt Near Black Mountain 792 Comment
  CAS-BOT-BC488456  Calochortus amabilis W. R. Dudley 1899-6-20 s.n. Humboldt By south fork of Eel River. South of Dyerville. Comment
  UC1103462  Calochortus coeruleus Joseph P. Tracy 1930-7-17 9027 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1197683  Calochortus tolmiei Harold E. Parks and Joseph P. Tracy 1934-6-27 11071 Humboldt Grouse Mt. 1432 Comment
  CAS-BOT-BC494362  Calochortus tolmiei Volney Rattan 1879-6-7 13 Humboldt Long Prairie Comment
  CAS-BOT-BC494365  Calochortus tolmiei H. C. Cantelow 1941-4-26 3949 Humboldt Rd. to Cape Mendocimo 12 mi. S.W. of Ferndale. Comment
  CAS-BOT-BC494368  Calochortus tolmiei M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles n. of Garberville Comment
  HSC55997  Caltha leptosepala Overton, Butler 1979-7-31 11439 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC56155  Caltha leptosepala G. L. Clifton, Griswold 1979-8-1 12016 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1971693  Calycadenia fremontii 1978-8-21 2158 Humboldt 2.1 mi W of Hwy 299 on Friday Ridge Road, ca. 3.5 mi WSW of Salyer, common at Burnt Woods, yellow form at Big Bar (W along cliffs), (=GDC 785) 458 Comment
  HSC99380  Calypso bulbosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 29 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
  HSC101987  Calyptridium monospermum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 886 Humboldt Patterson Meadows 1566 Comment
  UC562491  Calystegia purpurata Joseph P. Tracy 1927-7-24 8298 Humboldt Upper Mattole 152 Comment
  HSC103975  Calystegia soldanella C. Reynolds 2015-4-12 30 Humboldt Along Freshwater Beach, north of the Kuchel Visitor Center 1 Comment
  SEINET3991735  Camassia quamash Unknown 1910-5-15 Humboldt Immediate vicinity of Eureka. 152 Comment
  RSA152326  Camassia quamash subsp. breviflora Joseph P. Tracy 1947-5-3 17686 Humboldt Kneeland Prairie 762 Comment
  SEINET10452961  Camissonia Mary Susan Taylor 1990-8-22 Taylor 6071 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  NY679571  Camissonia cheiranthifolia F. W. Hunnewell 1925-7-21 9739 Humboldt Clam Beach N of Eureka. Comment
  UC35372  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. C. Blasdale 1896-6-3 Humboldt W. Eureka Comment
  RSA456172  Campanula prenanthoides Anstruther Davidson 1918-07 3350 Humboldt Eel River. Comment
  SEINET10939001  Campanula prenanthoides Overton 1979-7-24 OVERTON 9585 Humboldt Near Titlow Hill, on the Willow Creek quad., close to the town of Willow Creek 1250 Comment
  SEINET10462965  Campanula prenanthoides Aven Nelson, Ruth A. Nelson 1977-7-1 Nelson 3562 Humboldt Along north slope of ridge between Bear & Blanket Creeks. T1S R5E SEC.25 1494 Comment
  SEINET10873276  Campanula prenanthoides Olmo 1928-6-10 OLMO s.n. Humboldt WOOLEY CREEK Comment
  SEINET10905895  Campanula prenanthoides Aven Nelson, Ruth A. Nelson 1977-7-30 Nelson 3662 Humboldt In dry oak woodland beside State Route 36 about 1 mile east of Dinsmore. T1N R5E SEC.3 732 Comment
  SEINET10905930  Campanula prenanthoides Duncan 1920-9-22 Duncan s.n. Humboldt Hoopa Valley Comment
  SEINET10972391  Campanula prenanthoides Pollard 1948-8-4 POLLARD s.n. Humboldt Orleans Mountain Trail 1219 Comment
  UC583020  Campanula prenanthoides P. A. Munz 1936-8-10 14338 Humboldt 15 mi e Bridgeville; Little Van Duzen River Comment
  UC1736612  Campanula scouleri Dean W. Taylor 1991-8-15 12279 Humboldt Snow Camp Lake 1310 Comment
Read comments
Apr 8 2012
  HSC100410  Campanula scouleri Carl C. Marshall Jun 1886 243 Humboldt Redwood region, 'wild grass'. Comment
  UC1199206  Cardamine breweri J. P. Tracy 1901-3-31 997 Humboldt immediate vicinity Eureka; immediate vicinity Eureka 0 Comment
  UC162350  Cardamine californica J. P. Tracy 1905-2-26 2145 Humboldt immediate vicinity Eureka; immediate vicinity Eureka 0 Comment
  SEINET11993905  Cardamine californica J. P. Tracy 1950-1 18651 Humboldt on Redwood House Road, S of Redwood House 1 mi, on Yager Slope (head of South Yager Creek) Comment
  SEINET6914416  Cardamine californica var. integrifolia J. P. Tracy 1911-4-2 3171 Humboldt Immediate vicinity of Eureka, altitude 0-500 feet. Comment
  HSC42006  Cardamine nuttallii Tom Duebendorfer 1977-5-15 46 Humboldt 2 mi. E of Korbel along Maple Creek Rd. 457 Comment
  UC492260  Cardamine nuttallii Joseph P. Tracy 1927-6-12 8129 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  SEINET3377729  Cardamine nuttallii var. gemmata K. T. Harper 2002-1 2002 -6 Humboldt Prarrie Creek State Park, near Orick, on Big Tree Trail. Comment
  CHSC31270  Cardamine oligosperma Mark Stopher 1980-3-26 41 Humboldt In lowland adjoining Elk River. 1 Comment
  HSC6639  Cardamine oligosperma S. J. Hawks 1965-3-12 4 Humboldt 0.5 mi. W of Fairhaven Comment
  HSC26336  Cardamine oligosperma Thomas W. Nelson 1971-3-30 361 Humboldt Beside Williams Creek near Ferndale Comment
  RSA442190  Cardamine oligosperma M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale. Comment
  SEINET201070  Carduus pycnocephalus Joseph P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow on Bald Mt 762 Comment
  CAS-BOT-BC18268  Carex David D. Keck 1946-7-4 5604 Humboldt South Fork of Eel River, 8 miles north of Garberville. Comment
  JEPS25976  Carex amplifolia Joseph P. Tracy 1935-6-23 13986 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC18002  Carex aquatilis var. dives Joseph Prince Tracy 1934-7-30 13504 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon). 3 Comment
  HSC76400  Carex aquatilis var. dives L. P. Janeway 1982-8-7 118 Humboldt Dry Lagoon, middle of lagoon 3 Comment
  UC1586919  Carex arcta Juha Pykala and D. H. Norris 1987-6-5 1360 Humboldt e Maple Creek (se of Snow Camp Mountain, upper course of Redwood Creek); Redwood Creek 1100 Comment
  UC1103084  Carex athrostachya Joseph P. Tracy 1930-7-23 9139 Humboldt Horse Mountain, near Cold Springs North Coast Ranges 1524 Comment
  CAS-BOT-BC19215  Carex barbarae Joseph Prince Tracy 1929-6-23 8606 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC75765  Carex bolanderi Teresa Prendusi 1981-7-24 494 Humboldt Near Whiteys Peak 1585 Comment
  UC1586920  Carex canescens Juha Pykala and D. H. Norris 1987-6-5 1435 Humboldt e Maple Creek; Lake Prairie 1050 Comment
  HSC71669  Carex concinnoides Gail Newton 1980-6-16 200 Humboldt Near Onion Mtn. 1280 Comment
  HSC98936  Carex concinnoides Cara Witte 2007-5-24 120 Humboldt Along National Forest 1. Approximately 1 mile south of intersection with 6N38 and 6N36. 1476 Comment
  CAS-BOT-BC34980  Carex densa Joseph Prince Tracy 1927-5-30 8095 Humboldt Northern Coast Ranges.Garberville. 121 Comment
  JEPS113012  Carex deweyana subsp. leptopoda Dean W. Taylor 1991-8-15 12280 B Humboldt Snow Camp Lake 1310 Comment
Read comments
Apr 8 2012
  UC50822  Carex deweyana subsp. leptopoda Joseph P. Tracy 1900-8-5 921 Humboldt in immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC20076  Carex echinata Joseph Prince Tracy 1926-6-27 7666 Humboldt Northern Coast Ranges. Horse Mountain. 1463 Comment
  POM160306  Carex echinata subsp. echinata Joseph P. Tracy 1926-6-27 7666 Humboldt Horse Mountain 1463 Comment
  CAS-BOT-BC19964  Carex exsiccata Joseph Prince Tracy 1934-7-13 13388 Humboldt Dow's Prairie. 60 Comment
  RSA12426  Carex exsiccata Carl B. Wolf 1934-7-2 5868 Humboldt Small Lake at Snow Camp. (Mountains east of Korbel). 1372 Comment
  UC196567  Carex feta Joseph P. Tracy 1916-6-20 4734 Humboldt at the Dyke Ranch Northern Coast Ranges, Alder Point 304 Comment
  UC906711  Carex globosa Harold E. Parks and Joseph P. Tracy 1942-5-16 11556 Humboldt vicinity Garberville 152 Comment
  POM160289  Carex globosa Joseph P. Tracy 1925-6-7 7064 Humboldt East Fork of Willow Creek, Willow Creek Canyon. 457 Comment
  JEPS79844  Carex gynodynama Joseph P. Tracy 1936-6-21 14991 Humboldt Iaqua 609 Comment
  UC2020226  Carex gynodynama Joseph P. Tracy 1906-6-24 2508 Humboldt Northern Coast Region, south slope of Humboldt Hill. Comment
  UC303143  Carex harfordii H. E. Parks and Joseph P. Tracy 1925-6-13 7095 Humboldt Eureka Northern Coast Ranges, Eureka 30 Comment
Read comments
Sep 15 2010
  CAS-BOT-BC7790  Carex laeviculmis Joseph Prince Tracy 1930-7-16 8985 Humboldt South Fork Mountain. At McKay Camp. 1676 Comment
  HSC99369  Carex lenticularis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 18 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC604160  Carex lenticularis var. limnophila David D. Keck 1938-8-5 4774 Humboldt Big Lagoon Comment
  HSC102224  Carex leptopoda M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1143 Humboldt Patterson Meadows 1555 Comment
  UC1103587  Carex luzulina var. luzulina Joseph P. Tracy 1933-7-16 12771 Humboldt South Fork Mountain, McKay Camp Northern Coast Ranges 1676 Comment
  UC1982417  Carex mariposana Barbara Wilson, Richard Brainerd, Susan Erwin, Christine Jordan and Mike Friend 2003-6-20 10950 Humboldt Sundew Meadow on South Fork Mountain, on Shasta-Trinity National Forest road 3N32. Comment
  CAS-BOT-BC31822  Carex mendocinensis Joseph Prince Tracy 1935-7-14 14086 Humboldt Along streamlet Grouse Mountain. 1524 Comment
  HSC45437  Carex microptera Thomas W. Nelson, Jane P. Nelson 1978-7-2 4401 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 Comment
  SEINET7568483 Image available Carex multicostata L. P. Janeway 2003-7-30 7945 Humboldt Grouse Mountain quad. High North Coast Ranges. Edge of seedy area at upper edge of Clear Lake, 2.9 km southeast of Titlow Hill. 1494 Comment
  HSC48134  Carex multicostata D. H. Norris 1971-7-17 19597 Humboldt At intersection of Kneeland-Bridgeville road and Redwood House road Comment
  HSC103353  Carex nervina Thomas W. Nelson, Jane Nelson 1987-6-11 8604 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  CAS-BOT-BC119657  Carex neurophora Joseph Prince Tracy 1935-7-23 14143 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  CAS-BOT-BC119544  Carex nudata L. P. Janeway 1983-7-23 437 Humboldt Hoopa quad. Along the W side Klamath River at Aikens Creek. 91 Comment
  HSC45968  Carex nudata J. P. Smith 1973-5-26 6846 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC40258  Carex obnupta Linda M. Barker 1976-4-30 1417 Humboldt 3 mi. W of Arcata Comment
  POM79084  Carex obnupta Le Roy Abrams 1916-7-18 6083 Humboldt Arcata to Trinidad. Comment
  UC8071  Carex obnupta Harley P. Chandler May, 1901 1122 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UCD140704  Carex obnupta Linda M. Barker 1976-4-30 1421 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC119269  Carex ovalis Alice Eastwood; John Thomas Howell 1937-6-23 4830 Humboldt Near Yager Comment
  HSC48138  Carex ovalis D. H. Norris 1971-7-17 19601 Humboldt Along Redwood House Rd., about 3 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  CAS-BOT-BC119243  Carex pachystachya Joseph Prince Tracy 1939-7-9 16342 Humboldt Snow Camp 1402 Comment
  HSC82544  Carex pachystachya Thomas W. Nelson 1979-7-11 5005 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1103580  Carex pachystachya Joseph P. Tracy 1927-6-19 8204 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC194803  Carex pansa Joseph P. Tracy 1911-6-25 3258 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS63535  Carex pellita W. L. Jepson 1932-7-27 16439 Humboldt Weott Comment
  CHSC107144  Carex scopulorum var. bracteosa R. E. Brainerd 2009-7-23 1566 Humboldt North Coast Range, South Fork Mountain; 19.6 miles west-northwest of Hayfork. UTM Zone 10 453477E 4494945N. 1661 Comment
  CHSC106517  Carex serratodens Peter F. Zika 2009-6-19 24499 Humboldt Outer North Coast Range (NCoRO). Above Route 299, 0.7 road miles W of Berry Summit. 780 Comment
  UC303011  Carex serratodens Joseph P. Tracy 1926-6-27 7692 Humboldt Horse Mountain Northern Coast Ranges 1219 Comment
  SEINET8574179 Image available Carex subbracteata Unknown 2011-1 25493 Humboldt Titlow Hill Road, 3 road miles SE of Route 299 at Berry Summit, 1 air km SW of Horse Mountain. Outer North Coast Ranges (NCoRO) Comment
  UC1152076  Carex subbracteata Joseph P. Tracy 1950-6-25 18892 Humboldt Burr Valley, NW slope of Buck Mountain 1066 Comment
  UC562328  Carex vesicaria var. major Joseph P. Tracy 1931-5-17 9423 Humboldt opposite mouth Willow Creek (Lack Pond); Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA273334  Carex viridula B. D. Rogers 1965-10-2 1017 Humboldt Big Lagoon. 0 Comment
  RSA28554  Carex viridula H. E. Parks 1935-09 5214 Humboldt Dry Lagoon, South of Orick Comment
  CHSC97051  Carex viridula subsp. viridula Gordon Leppig 1997-8-3 639 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common on northern edge. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  UC1056035  Carex viridula var. viridula H. E. Parks September 1935 5214 Humboldt Dry Lagoon Comment
  RSA246760  Carpobrotus chilensis R. F. Thorne, P. Everett 1965-8-9 35306 Humboldt Big Lagoon 3 Comment
  CDA6965  Carthamus lanatus G. D. Barbe 1978-7-27 2418 Humboldt Along Salmon Creek, west of Miranda on Salmon Creek Road-Thomas Road. 0 Comment
  HSC98626  Castilleja affinis subsp. affinis Cara Witte 2007-6-4 185 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC179946  Castilleja affinis subsp. affinis Joseph P. Tracy 1914-5-14 4434 Humboldt Fort Seward; North Coast Ranges 121 Comment
  HSC26884  Castilleja affinis subsp. litoralis Clifton Raymond Chesbrough 1973-6-19 102 Humboldt .5 mi. N of College Cove along the coast Comment
  HSC79475  Castilleja affinis subsp. litoralis Kenneth Clark 1980-4-18 588 Humboldt Dead Man's Gulch 12 Comment
  JEPS93135  Castilleja affinis subsp. litoralis M. Wetherwax 1992-5-20 2433 Humboldt nw of Loleta (Table Bluff, s end of Humboldt Spit into Humboldt Bay, bluff between road to Loleta and beach); Table Bluff 30 Comment
  UC1196856  Castilleja affinis subsp. litoralis Joseph P. Tracy 1927-8-14 8332 Humboldt n end Big Lagoon (hills) 152 Comment
  UC902223  Castilleja affinis subsp. litoralis Joseph P. Tracy 1947-5-24 17692 Humboldt Big Lagoon 152 Comment
  HSC56074  Castilleja arachnoidea G. L. Clifton, Griswold 1979-7-31 11750 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC902261  Castilleja attenuata Joseph P. Tracy 1947-5-24 17694 Humboldt Devil's Canyon; Big Lagoon 152 Comment
  UC146238  Castilleja attenuata Joseph P. Tracy 1903-5-22 1881 Humboldt Alder Point Northern Coast Ranges, Eel River (on Eel River) 152 Comment
  JEPS108698  Castilleja exserta C. Sander 2005-8-16 CA 330 81 Humboldt Manila Dunes 3 Comment
  UC604630  Castilleja exserta subsp. latifolia Joseph P. Tracy 1938-7-12 16058 Humboldt Table Bluff; w of lighthouse 6 Comment
  HSC56127  Castilleja miniata G. L. Clifton, Griswold 1979-8-1 11925 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC244881  Castilleja miniata Milo S. Baker 1927-8-21 2486 a Humboldt Vicinity of Bald Mt. 914 Comment
  UC179928  Castilleja miniata Joseph P. Tracy 1914-7-4 4537 Humboldt High Prairie Northern Coast Ranges, Bald Mountain (on Bald Mountain) 1066 Comment
  HSC44348  Castilleja pruinosa Brad Klipfel 1975-7-11 696 Humboldt Horse Mtn. Comment
  UC582476  Castilleja pruinosa Joseph P. Tracy 1933-7-11 12674 Humboldt Horse Mountain 1432 Comment
  UC176440  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1913-6-19 4213 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1502112  Ceanothus R. Sutherland 1976-1-30 4 .30.76 Humboldt Pt. Delgada Quad. 990 Comment
  UC1502123  Ceanothus R. Sutherland 1975-7-5 6 .5.7 75 Humboldt Garberville Quad. 243 Comment
Read comments
May 26 2014
  UC1502125  Ceanothus R. Sutherland 1975-7-1 B. 1 .7 75 Humboldt along Baker Creek; Garberville Quad., along Baker Creek 335 Comment
  CAS-BOT-BC48529  Ceanothus cordulatus Doris Kildale Gillespie 1931-6-7 10618 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  UCD111746  Ceanothus cuneatus Roman Gankin; W. R. Hildreth 1966-3-15 698 Humboldt State Highway 96, 8.4 miles north of Hoopa. Comment
  CAS-BOT-BC49320  Ceanothus cuneatus L. R. Abrams 1918-6-17 7210 Humboldt Hoopa to Briar's Resort on road to Korbel Comment
  UC668166  Ceanothus foliosus Joseph P. Tracy 1937-5-30 15314 Humboldt 3 mi s Bridgeville (by roadside.) 457 Comment
  CAS-BOT-BC49659  Ceanothus foliosus var. foliosus Joseph P. Tracy 1937-5-30 15314 Humboldt 3 miles south of Bridgeville 457 Comment
  HSC101667  Ceanothus gloriosus var. exaltatus J. P. Smith, J. O. Sawyer 2011-4-23 13128 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  CAS-BOT-BC50051  Ceanothus incanus H. E. McMinn 1922-7-1 382 Humboldt S. Fk. Eel River Comment
  CAS-BOT-BC50055  Ceanothus incanus W. R. Dudley 1899-6-20 s.n. Humboldt Near Eel River in woods Comment
  POM282970  Ceanothus incanus Lyman Benson 1929-7-11 1785 Humboldt S of Garberville Comment
  UC1222620  Ceanothus incanus Joseph P. Tracy 1950-8-4 19249 Humboldt Grasshopper Peak Bull Creek State Park at head of Canoe Creek Comment
  HSC18291  Ceanothus integerrimus L. D. Napier 1962-5-13 4 Humboldt 10 mi W of Junction City near Hwy. 299 457 Comment
  UC1070740  Ceanothus integerrimus A. E. Wieslander 1931-5-19 202 Humboldt Near Orleans Hoopa quad., Klammath Forest Comment
  HSC36677  Ceanothus parryi R. Sutherland 1975-5-5 7 .5575 Humboldt Near Ettersburg Rd. 457 Comment
  HSC36682  Ceanothus parryi R. Sutherland 1975-5-30 5 .30575 Humboldt N of Briceland, Redwood Creek near rd. 177 Comment
  HSC43179  Ceanothus parryi R. Sutherland 1975-6-19 2 .19675 Humboldt 2 mi NE of Briceland 178 Comment
  OBI10389  Ceanothus parryi Carl B. Wolf 1941-7-27 11086 Humboldt N Coast Ranges, 5.8 mi W Maple Crk on rd to Freshwater 610 Comment
  RSA25753  Ceanothus parryi Carl B. Wolf 1941-7-28 11092 Humboldt Slope along Eel River, 1 mile S of Miranda. 30 Comment
  UC18403  Ceanothus parryi Bolander Jun 1867 6572 Humboldt Comment
  HSC18323  Ceanothus pumilus P. W. Shields May 1955 Humboldt 7 mi W of Hoopa Comment
  CAS-BOT-BC52991  Ceanothus thyrsiflorus Erin Karnatz; Paul Fearn; Ed Kentner 1994-5-14 50 Humboldt ~2 mi. east of Blue Lake; north side of Hwy 299. 152 Comment
  CAS-BOT-BC52995  Ceanothus thyrsiflorus C. Hart Merriam 1920-8-29 s.n. Humboldt Lower Eel River between Dyerville and Pepperwood Comment
  HSC60305  Ceanothus thyrsiflorus J. P. Smith 1970-6-7 3810 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  CDA7087  Centaurea calcitrapa T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 miles south of Redcrest. 0 Comment
  CAS-BOT-BC272108  Centaurea cyanus Henry M. Pollard 1948-7-24 s.n. Humboldt Near Orleans Comment
  UC1222948  Centaurea solstitialis Joseph P. Tracy 1948-9-20 18216 Humboldt vicinity of Hosler Creek; Hoopa Valley, Hosler Creek 91 Comment
  HSC98319  Cephalanthera austiniae T. Jimerson, J. Pageau 1979-6-12 529 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  UC1196469  Cephalanthera austiniae Stuart Harris 1936-6-12 3300 Humboldt Chalk Mt. 609 Comment
  UC1198321  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1900-5-28 809 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  UC1052447  Cerastium glomeratum H. E. and S. T. Parks 1944-4-1 24279 Humboldt Trinidad, Spruce Cove 60 Comment
  HSC47013  Cerastium glomeratum Sheila Logan 1978-4-7 2 Humboldt Samoa Sand Dunes, 1/4 mi. N of Coast Guard Station at N spit of Samoa Peninsula Comment
  JEPS51355  Cerastium viride Lincoln Constance 1934-6-3 805 Humboldt on Redwood Hwy. 1 mi. n. Dyerville (rd. from High Rock to Horse Prairie); S. Fork Eel R., Bull Creek Region Comment
  JEPS44706  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1929-8-25 8661 Humboldt Trinity River Valley at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC85651  Chamaecyparis lawsoniana Thomas Nelson 1977-10-20 3758 Humboldt Mixed evergreen forest above junction of Maple Creek and Kneeland roads. 853 Comment
  SEINET11739818  Chamaecyparis lawsoniana F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -302 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC93743  Chamerion angustifolium subsp. circumvagum Gordon Leppig 1998-9-20 1103 Humboldt Mckinleyville, Hammond Trail, 100 m N of Fischer Ave. 18 Comment
  CAS-BOT-BC68261  Cheilanthes gracillima Doris K. Kildale 1926-9-5 2649 Humboldt Lasseck's Peaks - Signal Peak 1791 Comment
  CAS-BOT-BC68265  Cheilanthes gracillima Marshall Avery Howe 1896-6-6 s.n. Humboldt Kneeland Prairie Comment
  HSC82123  Cheilanthes gracillima Thomas W. Nelson 1979-7-11 4997 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC451494  Chimaphila umbellata Milo S. Baker 1947-8-10 11899 Humboldt 15 mi. NE of Hoopa near end of forest road 1371 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
  UC21655  Chimaphila umbellata Bolander 6544 Humboldt Parkers Station, Eureka Trail Comment
  HSC98053  Chlorogalum pomeridianum var. pomeridianum Cara Witte 2007-7-17 541 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1302 Comment
  CAS-BOT-BC236919  Chloropyron maritimum subsp. palustre Malcom A. Nobs; S. Galen Smith 1949-8-3 1200 Humboldt Bordering Humboldt Bay, ca. 2 miles north of Eureka Comment
  UCD123795  Chloropyron maritimum subsp. palustre Malcolm A. Nobs; S. Galen Smith 1949-8-3 1200 Humboldt bordering Humboldt Bay, about 2 miles north of Eureka. Comment
  HSC100429  Chrysanthemum leucanthemum Carl C. Marshall Jun 1885 130 Humboldt Jarnigan's and mouth of Mad River. Comment
  CAS-BOT-BC36478  Chrysolepis chrysophylla Doris Kildale Gillespie 1931-6-7 10592 Humboldt South Fork Mt. Blake lookout 1726 Comment
  CAS-BOT-BC36483  Chrysolepis chrysophylla Doris K. Kildale 1926-11-28 2867 Humboldt Patricks Point. Coast Terrace Comment
  JEPS49021  Chrysolepis chrysophylla Hilda W. Grinnell 1932-7-9 5 Humboldt above Kerlin Creek (South Fork Mt.); South Fork Mt. Comment
  UC672860  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1940-8-25 16715 Humboldt Bald Mountain 975 Comment
  CAS-BOT-BC30125  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1934-8-29 13641 Humboldt Northern Coast Ranges. South Fork Mountain, along summit near Blake lookout 1706 Comment
  HSC36440  Cicuta douglasii John Rehling 1974-7-8 9 Humboldt Big Lagoon Bog Comment
  UC1145089  Cinna latifolia Joseph P. Tracy 1936-8-7 15087 Humboldt head of Little Hors-Linto Creek Trinity Summit; , head of Little Hors-Linto Creek 1371 Comment
  HSC70355  Circaea alpina subsp. pacifica M. A. Baker 1980-6-7 1864 Humboldt Near Ammon Creek 732 Comment
  HSC98857  Circaea alpina subsp. pacifica Cara Witte 2008-7-30 974 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  JEPS31552  Circaea alpina subsp. pacifica Lincoln Constance 1934-5-31 742 Humboldt from w. boundary of park to Grasshopper Peak (Squaw Creek rd., Bull Creek flat along Bull Creek, n. side of creek, Bull Creek Region); Bull Creek Region Comment
  JEPS59109  Cirsium arvense W. L. Jepson 1902-8-3 2135 Humboldt Eel River, Ferndale Ferry 6 Comment
  SBBG25852  Cirsium arvense D. Myrick 1978-8-16 Humboldt Prairie Crk Redwoods State Park 152 Comment
  HSC104074  Cirsium arvense T. Collins 2002-7-31 Humboldt Six Rivers National Forest; along road cut on Hwy. 36 Comment
  SEINET201069  Cirsium arvense Joseph P. Tracy 1933-8-13 12963 Humboldt Arcata Bottom 15 Comment
  UCD130554  Cirsium arvense R. E. Nelson 1956-7-3 192 b Humboldt 1.5 miles south of Brush Mountain in vicinity of Salyer , Six Rivers National Forest. 792 Comment
  RSA0070852  Cirsium occidentale var. candidissimum C. B. Wolf 1934-6-30 5839 Humboldt 7 miles from Shelter Cove on road to Briceland. 152 Comment
  CAS-BOT-BC286387  Cirsium occidentale var. venustum Doris K. Kildale 1925-7-2 967 Humboldt Bug Creek 792 Comment
  UC668206  Cirsium remotifolium Joseph P. Tracy 1938-7-6 16025 Humboldt Big Lagoon 30 Comment
  UC582532  Cirsium remotifolium var. odontolepis Joseph P. Tracy 1930-7-21 8887 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC582538  Cirsium remotifolium var. rivulare Joseph P. Tracy 1934-7-6 13659 Humboldt Kneeland Prairie 762 Comment
  UC582534  Cirsium remotifolium var. rivulare Joseph P. Tracy 1931-6-28 9596 Humboldt lower foothills of nw slope of Buck Mountain 914 Comment
  UC35400  Clarkia amoena Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  UC677710  Clarkia amoena S. K. Harris 1936-6-25 671 Humboldt road from Petrolia to Cape Mendocino (s side of Domingo Gulch) 30 Comment
  CAS-BOT-BC160967  Clarkia amoena subsp. amoena S. K. Harris 1936-6-25 s.n. Humboldt On south side of Domingo Gulch on road from Petrolia to Cape Mendocino 30 Comment
  RSA13761  Clarkia amoena subsp. huntiana Carl B. Wolf 1927-8-29 1199 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  HSC16233  Clarkia amoena subsp. huntiana P. A. Mansfield 1967-7-8 1 Humboldt 6 mi. W of Weitchpec on Hwy. 96 Comment
  CAS-BOT-BC172077  Clarkia davyi D. E. Breedlove 1962-6-7 3037 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC35011  Clarkia davyi Thomas W. Nelson 1974-9-15 1715 Humboldt W of Fairhaven, Samoa Peninsula Comment
  UC198877  Clarkia purpurea subsp. quadrivulnera Chesnut and Drew July 1888 Humboldt Campbell's Comment
  UCR198252  Clarkia rubicunda Dean Kelch 2007-7-25 07- 507 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  HSC99419  Claytonia cordifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 68 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
  HSC74245  Claytonia exigua subsp. exigua M. A. Baker 1980-7-11 2806 Humboldt Near Red Mtn. 1433 Comment
  HSC41230  Claytonia lanceolata Brad Klipfel 1974-5-8 318 Humboldt Horse Mtn. Comment
Read comments
Sep 23 2019
  CAS-BOT-BC440090  Claytonia perfoliata subsp. perfoliata J. M. Miller 1974-6-3 369 Humboldt Horse Mtn; 2.6 mi. s. of U.S. 299 on the Horse Mtn/Titlow Hill rd. On the west side of the road. 1066 Comment
  UCD100846  Claytonia rubra subsp. depressa Linda M. Barker 1976-2-22 1318 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC203566  Claytonia rubra subsp. depressa Joseph P. Tracy 1918-4-7 4861 Humboldt mouth of Strawberry Creek Northern Coast Ranges, Dows Prairie (Dows Prairie) 6 Comment
  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
  HSC44423  Claytonia saxosa Brad Klipfel 1975-5-30 652 Humboldt Horse Mtn. Comment
  HSC65860  Claytonia saxosa Gail Newton 1980-6-28 735 Humboldt Near Mad River Butte. 1536 Comment
  HSC59580  Claytonia sibirica Rick Lundquist 1979-4-6 1 Humboldt Arcata, SE Corner of 7th and Union St. 24 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
  POM117947  Claytonia sibirica Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UCD100886  Claytonia sibirica K. Esau 1934-5-8 s.n. Humboldt Redwood Highway, near Scotia. Comment
  UCR275110  Claytonia sibirica Charity A. Hartshorn 2016-5-14 32 Humboldt Arcata Community Forest 244 Comment
  RSA183605  Claytonia sibirica R. D. Modafferi 1965-4-8 14 Humboldt 2.2 miles N of Trinidad on Trinity Street. 305 Comment
  SD51264  Claytonia sibirica Darley F. Howe 1961-8-1 3114 Humboldt 12.7 miles north of Arcata on #101 Comment
  CHSC3493  Clintonia andrewsiana Roger Jaegel 1966-5-8 151 Humboldt Located twenty-five miles southeast of Eureka, in Richardson's Grove Redwood Park. Comment
  UCD139622  Clintonia andrewsiana T. E. Weier 1942-5-22 s.n. Humboldt near Dyerville, Highway 101. Comment
  CAS-BOT-BC238027  Collinsia Doris Kildale Gillespie 1931-6-7 10608 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  UC1196766  Collinsia grandiflora Joseph P. Tracy 1933-6-13 12572 Humboldt w Hoopa (near summit of Hoopa Mtn on rd from Hoopa to Bair's); Hoopa Mtn 1066 Comment
  UC147862  Collinsia greenei Joseph P. Tracy 1908-6 9840 Humboldt nw slope Buck Mtn; Northern Coast Ranges, Buck Mtn 1219 Comment
  JEPS25064  Collinsia heterophylla Joseph P. Tracy 1948-6-13 18049 Humboldt near Harris 609 Comment
  HSC70373  Collinsia parviflora Gail Newton 1980-6-7 136 Humboldt Near Brush Mtn. 1128 Comment
  UC147864  Collinsia parviflora Joseph P. Tracy 1908-6 2703 Humboldt Valley of Van Duzen River opposite Buck Mountain (Northern Coast Ranges); , Valley of Van Duzen River 762 Comment
  BLMAR531  Collomia heterophylla Jennifer Wheeler 2009-6-23 531 Humboldt King range, On Paradise Ridge road Comment
  UC52547  Collomia heterophylla Mrs. M. H. Manning June, 1902 Humboldt Hupa Comment
  HSC45803  Collomia heterophylla J. P. Smith, J. O. Sawyer 1976-5-2 8629 Humboldt S. R. 96, 4.9 mi. N of its junction with S.R. 299 122 Comment
  HSC96946  Collomia heterophylla Ryoko Ito, Shauna McDonald 2007-6-13 9 Humboldt 1 mi. from NF1 on FS 5N04 1601 Comment
  UC1197848  Collomia heterophylla Joseph P. Tracy 1914-5-14 4461 Humboldt Fort Seward Northern Coast Region 121 Comment
  HSC73719  Collomia tracyi M. A. Baker 1980-7-15 2955 Humboldt Near Whiting Ridge. 1341 Comment
  HSC74404  Collomia tracyi Gail Newton 1980-6-28 745 Humboldt Near Mad River Butte. 1536 Comment
  UC1197860  Collomia tracyi Joseph P. Tracy 1926-6-20 7634 Humboldt Horse Mountain 1432 Comment
  UC133660  Collomia tracyi Joseph P. Tracy 1908-6 2837 Humboldt nw talus slope Northern Coast Ranges, Buck Mountain 914 Comment
  UC1197343  Conioselinum pacificum Joseph P. Tracy 1914-7-12 4579 Humboldt near Indianola; Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC286025  Conyza canadensis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  RSA696831  Conyza canadensis J. Russell Bruff 1937-8-17 939 Humboldt Richardson Grove, bed of Eel River. Comment
  UC165072  Conyza canadensis Joseph P. Tracy 1908-7-1 2908 Humboldt ridge between Van Duzen and Mad Rivers (near Low Gap, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  UC1196210  Coptis laciniata Joseph P. Tracy 1923-4-15 6194 Humboldt Northern Coast Ranges, Bald Mountain, near the Bald Mt. House Bald Mountain; Northern Coast Ranges, Bald Mountain 914 Comment
  HSC104326  Coptis laciniata James Regan, Humboldt Redwood Co., LLC 2009-4-1 31 Humboldt Snow Camp Rd., Bald Mtn. Creek Comment
  HSC98642  Corallorhiza maculata Cara Witte 2008-7-11 883 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC14966  Corallorhiza maculata Harley P. Chandler June, 1901 1395 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  JEPS8448  Corallorhiza maculata Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3421 Humboldt Snow Camp Bald Mountain ridge (edge of meadow, ridge between Mad River and Redwood Creek) 1432 Comment
  UC14974  Corallorhiza mertensiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5625 1/2 Humboldt Bald Mt. Northern Coast Ranges Comment
  HSC95093  Cordylanthus maritimus subsp. palustris Andrea Pickart 2002-6-27 123 Humboldt Mad River Slough and Dunes, N of parking area at N end of access road. 0 Comment
  POM21053  Cordylanthus pilosus subsp. pilosus L. R. Abrams 1916-7-22 6158 Humboldt Between Little and Big Van Druzen River - Eureka - Red Bluff Road. Comment
  HSC76251  Cordylanthus tenuis subsp. viscidus Denis Kearns 1981-7-6 64 Humboldt Near Mosquito Lake 1256 Comment
  UC582562  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1924-7-20 6735 Humboldt on road between Willow Creek and Three Creeks; Koby Ranch 609 Comment
  UC604676  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1938-8-14 16118 Humboldt mt. slopes w mouth of river; South Fork of Trinity River 304 Comment
  UC936240  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1947-8-24 17884 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  CDA39436  Cordyline australis Gordon Leppig 2004-6-8 2165 Humboldt Eureka, abandoned railroad tracks at Second St. and Commercial Ave. Comment
  CAS-BOT-BC101143  Corethrogyne filaginifolia Doris K. Kildale 1927-6-25 3562 Humboldt Shelter Cove Comment
  UC1223036  Corethrogyne filaginifolia Joseph P. Tracy 1950-6-18 18764 A Humboldt 1 mi w of town Petrolia Comment
  UC1601151  Corethrogyne filaginifolia Joseph P. Tracy 1934-7-21 13474 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  POM356152  Corethrogyne filaginifolia var. californica E. A. Purer 1932-7-30 4675 Humboldt South of Orick Comment
  HSC6419  Cornus nuttallii J. Sandborg, F. Sandborg Jun 1968 32 Humboldt Bluff Creek near Notice Creek. Comment
  RSA239689  Cornus nuttallii Larry E. DeBuhr 1973-4-23 982 Humboldt Richardson Grove Redwood State Park. Comment
  UC205636  Cornus nuttallii Joseph P. Tracy 1919-9-14 5213 Humboldt near its mouth Willow Creek - Northern Coast Ranges, Willow Creek (a tributary of Trinity) Comment
  RSA0019453  Cornus occidentalis C. B. Wolf 1937-8-13 9251 Humboldt North Coast Range, 11 mi. E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  UC668289  Cornus sericea subsp. sericea Joseph P. Tracy 1937-7-24 15518 Humboldt Trinity Summit, Devil's Hole 1676 Comment
  JEPS50175  Cornus sessilis W. L. Jepson 1902-7-11 2014 Humboldt river bank of S. Fork Trinity R., Martin's Ranch S. Fork Trinity R., Martin's Ranch Comment
  RSA394654  Cornus sessilis Jane Turner, Francis M. Ball, B. L. Turner 1962-7-10 1144 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  PASA1934  Cornus sessilis Frank W. Peirson 1932-7-7 Humboldt Wild Creek Comment
  RSA0019462  Cornus sessilis H. M. Pollard 1948-7-27 s.n. Humboldt Mouth of Red Cap Creek near Orleans. Comment
  HSC97380  Cortaderia jubata J. P. Smith 2007-9-29 12426 Humboldt Along Hilfiker Ln., just N of the Elk River Sewage Treatment Plant 2 Comment
  HSC12827  Cortaderia selloana Wilbur Peterson, Thomas W. Nelson 1970-11-1 105 Humboldt Arcata, Humboldt State University campus, S side of the tennis court Comment
  CAS-BOT-BC172850  Corylus cornuta subsp. californica Joseph P. Tracy 1946-8-25 17639 Humboldt Table Bluff, windswept N slopes, along Hookton Road 9 Comment
  RSA134173  Corylus cornuta var. californica P. C. Everett, E. K. Balls 1959-10-24 23956 Humboldt 4.7 miles S from Bluff Creek, Hwy 96 from Orleans to Weitchpec. 122 Comment
  HSC5432  Cotula coronopifolia D. E. Anderson 1961-9-2 1766 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  POM301287  Crataegus suksdorfii Joseph P. Tracy 1948-9-12 18205 Humboldt Box Camp Meadow, Trinity summit. 1463 Comment
  HSC58139  Crepis pleurocarpa Gilbert Muth 1979-8-1 12158 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  RSA167430  Crocosmia X crocosmiiflora Joseph P. Tracy 1950-8-31 19344 Humboldt Garden escape at 3rd and I streets. Eureka. Comment
  SEINET10529035  Crocosmia aurea Charlene A. Bennett 1976-8-6 Bennett 477 Humboldt Collected by hwy. 101, N side of orick. Rocky area, densely forested by river 30 Comment
  HSC40851  Cryptantha affinis Thomas W. Nelson 1976-7-9 2998 Humboldt Along W side of ridge S of E peak of Lassic Mtn., (Signal Peak). 1524 Comment
  UC175691  Cryptantha flaccida Joseph P. Tracy 1908-6 2758 Humboldt opposite Buck Mountain (at Little Van Duzen Bridge); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS67641  Cryptantha intermedia Harley P. Chandler Jun 1901 1302 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC76321  Cryptogramma acrostichoides Teresa Prendusi 1981-7-21 284 Humboldt Near Whiteys Peak 1646 Comment
  UC906744  Cuscuta californica Joseph P. Tracy 1947-7-5 17776 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  RSA144007  Cuscuta campestris P. H. Raven 1961-8-22 16577 Humboldt Chileno Valley Comment
  POM318827  Cuscuta salina Patricia Wilder 1968-8-21 4416 a Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  UC562479  Cuscuta subinclusa Joseph P. Tracy 1933-8-6 12960 Humboldt e of Orick (Tomlinson Ranch); Bald Hills 762 Comment
  UC642236  Cyclospermum leptophyllum Joseph P. Tracy 1927-8-20 8333 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (on Van Duzen River) 91 Comment
  HSC3639  Cynoglossum grande Paul Shields Apr 1955 Humboldt Kneeland Comment
  UC1239627  Cynoglossum grande Joseph P. Tracy 1927-7-4 8241 Humboldt S. Yager Creek Valley Northern Coast Ranges, S. Yager Creek Valley 762 Comment
  UC177208  Cynoglossum grande Joseph P. Tracy 1913-6-20 4229 Humboldt opposite Buck Mt.; Northern Coast Ranges, Van Duzen R. Valley 762 Comment
  UCD60132  Cynosurus cristatus R. Tofsrud 1949-7-1 s. n. Humboldt South edge of Scotia. Comment
  BLMAR144  Cynosurus echinatus Donald Hazlett 1994-6-7 144 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC38430  Cynosurus echinatus Dennis Anderson, J. P. Smith 1971-6-18 - 1061 Humboldt Chezem Rd., 3 mi. E of bridge over Redwood Creek Comment
  HSC45219  Cynosurus echinatus M. Alcasas 1978-6-3 126 Humboldt Titlow Hill Rd., 0.3 mi. from Hwy. 299 869 Comment
  UC1103242  Cynosurus echinatus Joseph P. Tracy 1942-6-15 17141 Humboldt along South Fork of Eel River Miranda; along South Fork of Eel River 121 Comment
  HSC97544  Cyperus eragrostis Ivy Watson 2008-10-5 40 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  CAS-BOT-BC114059  Cyperus squarrosus Joseph Prince Tracy 1931-9-7 9662 Humboldt Damp sand bars along river. Trinity River Valley at Willow Creek. 152 Comment
  UC1103635  Cyperus squarrosus Joseph P. Tracy 1921-9-4 5952 Humboldt mouth of S. Fork Trinity (Trinity R. Valley near Willow Creek); Northern Coast Ranges, Trinity R. Valley, S. Fork Trinity 152 Comment
  CAS-BOT-BC114195  Cyperus strigosus Henry M. Pollard 1945-8-27 s.n. Humboldt Near Orleans, Pond near Harley place. Comment
  HSC7284  Cyperus strigosus D. E. Anderson 1963-9-21 2839 Humboldt 0.5 mi E of Willow Creek Comment
  UC302157  Cypripedium californicum Joseph P. Tracy 1926-6-27 7669 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  CAS-BOT-BC136508  Cypripedium montanum Doris K. Kildale 1929-5-26 9116 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  UC71494  Cystopteris fragilis Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5844 Humboldt Trinity Summit Comment
  HSC34813  Dactylis glomerata Dryden 1975-4-20 122 Humboldt Arcata 0 Comment
  HSC73805  Dactylis glomerata M. A. Baker 1980-6-16 1937 Humboldt Near Monks Camp. 1097 Comment
  HSC79501  Dactylis glomerata Kenneth Clark 1980-6-14 685 Humboldt Shelter Cove; in stream alluvium of N fork of Dead Man's Gulch 198 Comment
  UC1103248  Dactylis glomerata Joseph P. Tracy 1919-8-28 5186 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC73630  Danthonia californica Marc Baker 1980-7-22 3114 Humboldt Near Grogan Hole. 1676 Comment
  UC1131389  Danthonia californica var. americana H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quadrangle Comment
  UC184354  Danthonia californica var. americana Joseph P. Tracy 1912-6-9 3650 Humboldt Alton Northern Coast Region 30 Comment
  UCD60512  Danthonia californica var. americana A. H. Murphy 1947-6-9 s.n. Humboldt Parrott's Ranch, Table Bluff, ca. 1.5 miles north of Loleta. Comment
  UCD60514  Danthonia californica var. americana R. Tofsrud 1947-6-27 s.n. Humboldt About halfway between Yager and Kneeland on county road. Comment
  UCD61358  Danthonia unispicata A. H. Murphy 1951-6-25 73 Humboldt About 1 mile W of Board Camp Mtn. Ca. 16 miles NE of Bridgeville. Comment
  JEPS12215  Datura stramonium Joseph P. Tracy 1916-9-5 4762 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges, South Fork Eel River 60 Comment
  SDSU2270  Daucus carota D. F. Howe 1959-8-4 2805 Humboldt Roadside 9 miles east of Arcata on #299. Comment
  UC1223154  Delairea odorata Joseph P. Tracy 1942-1-25 17054 Humboldt near Ferndale; along Russ Creek Comment
  HSC101980  Delphinium decorum subsp. tracyi M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 877 Humboldt Patterson Meadows 1566 Comment
  UC503043  Delphinium decorum subsp. tracyi Joseph P. Tracy 1927-6-12 8160 Humboldt lower slopes Northern Coast Ranges, Horse Mountain 1219 Comment
  HSC97177  Delphinium decorum subsp. tracyi Benjamin Hart, Erin Lonergan 2007-6-4 2 Humboldt Grouse Mtn., Coldsprings Camp, 6.5 mi. up Titlow Hill Rd. 1372 Comment
  CAS-BOT-BC10318  Delphinium hesperium D. E. Breedlove 1961-7-4 s.n. Humboldt 10.9 miles west of Willow Creek on US 299 822 Comment
  SEINET12099544  Delphinium hesperium J. P. Tracy 1950-1 18875 Humboldt 3 mi N of Blocksburg Comment
  UC9180  Delphinium hesperium subsp. pallescens Harley P. Chandler June 1901 1410 Humboldt Klamath River North Coast Ranges 304 Comment
  CAS-BOT-BC9953  Delphinium nudicaule Doris K. Kildale 1927-5-20 3164 Humboldt Bug Creek 792 Comment
  HSC95728  Delphinium nudicaule Steven Lee 2004-4-26 30 Humboldt Horse Mtn., 4 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  POM126514  Delphinium nudicaule Joseph P. Tracy 1922-4-30 6012 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  HSC38707  Delphinium nuttallianum J. P. Smith 1976-5-29 8818 Humboldt Horse Mtn. 1402 Comment
  HSC70229  Delphinium nuttallianum M. A. Baker 1980-6-8 1897 Humboldt Near Buck Flat. 1554 Comment
  POM299320  Delphinium trolliifolium Lester Rowntree 1938-6-4 s.n. Humboldt Stone Lagoon near Orick Comment
  UC1222576  Delphinium trolliifolium Joseph P. Tracy 1950-6-8 18721 Humboldt ridge summit near Mountain Glen Ranch (7 mi s of Ferndale); Bear River Ridge Comment
  UC595124  Deschampsia cespitosa subsp. beringensis David D. Keck 1938-8-5 4773 Humboldt Big Lagoon Comment
  UCD63765  Deschampsia cespitosa subsp. holciformis R. Tofsrud 1949-7-1 Humboldt On road between Scotia and Capetown. Comment
  UC1103222  Deschampsia danthonioides Joseph P. Tracy 1932-5-26 10276 Humboldt Fort Baker Ranch North Coast Ranges, Fort Baker Ranch 762 Comment
  UC1103213  Deschampsia elongata J. P. Tracy 1900-8-5 920 Humboldt immediate vicinity of Eureka 0 Comment
  UC1103215  Deschampsia elongata J. P. Tracy 1899-7-22 331 Humboldt immediate vicinity of Eureka 0 Comment
  SEINET3071060 Image available Deschampsia holciformis Joseph P. Tracy 1934-7-20 13465 Humboldt Big Lagoon Comment
  UCD95519  Dicentra formosa subsp. formosa P. B. Kennedy 1929-6-14 s.n. Humboldt Arcata, Range of California Barrel Co. Comment
  HSC96162  Dicentra pauciflora Laurel Goldsmith, Wanda Naylor 2005-6-15 12 Humboldt 1 mi. SE of Grouse Mtn. on unnamed F.S. road 1400 Comment
  UC1198178  Dichelostemma X venustum Joseph P. Tracy 1947-5-10 17683 Humboldt Miranda, along the South Fork of Eel River South Fork of Eel River 121 Comment
  CAS-BOT-BC483665  Dichelostemma capitatum Doris K. Kildale 1927-4-17 3097 Humboldt Breeland Bridge 1/2 mile west of Garberville 114 Comment
  CHSC31277  Dichelostemma ida-maia Mark Stopher 1980-5-28 72 Humboldt Hillside along Hwy 169 1.2 mi e of Martins Ferry Bridge. 170 Comment
  UC30061  Dichelostemma ida-maia Harley P. Chandler May 1901 1254 Humboldt Redwood Belt North Coast Ranges 152 Comment
  UC635734  Dichelostemma ida-maia H. L. Mason 1928-7-20 4909 Humboldt South Fork Mountain Comment
  CAS-BOT-BC501015  Dichelostemma ida-maia W. R. Dudley 1899-6-20 s.n. Humboldt Near Eel River Comment
  CAS-BOT-BC501018  Dichelostemma ida-maia L. R. Abrams 1918-6-15 7108 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC501019  Dichelostemma ida-maia L. R. Abrams 1918-6-16 7135 Humboldt Willow Creek Comment
  HSC3027  Dichelostemma ida-maia H. E. Parks, S. T. Parks Jun 1928 259 Humboldt Gills 305 Comment
  HSC35026  Dichelostemma multiflorum Thomas W. Nelson, James Nelson 1975-5-24 1848 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC60040  Dichelostemma multiflorum M. A. Baker 1977-6-6 373 Humboldt Hoopa Comment
  HSC6401  Dichondra donelliana J. P. Tracy 1932-3-20 9785 Humboldt Near ocean, Trinidad 3 Comment
  RSA183603  Digitalis purpurea R. D. Modafferi 1965-5-13 75 Humboldt 0.2 miles north of Trinidad on Trinity Street. 305 Comment
  SEINET12269089  Digitalis purpurea K. S. Erdman 1970-1 4770 Humboldt Counts Hill Prairie on Bald Hill Rd Se of Orick 13 mi 853 Comment
  UCD64093  Digitaria sanguinalis Joseph P. Tracy 1942-9-13 17316 Humboldt Eureka. 30 Comment
  CAS-BOT-BC153241  Diplacus kelloggii Doris K. Kildale 1928-5-19 5179 Humboldt Chalk Mountain Comment
  UC30078  Disporum smithii Mrs. M. H. Manning 1901-4-1 12 Humboldt near Hupa Comment
  JEPS14669  Dodecatheon alpinum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8930 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (South Fork Mountain) 1676 Comment
  HSC17863  Dodecatheon hendersonii E. C. Murczek 1964-4-4 31 Humboldt 5 mi. N of Hoopa along side road Comment
  UC1001280  Downingia elegans W. L. Jepson 1927-7-3 12363 Humboldt Miranda South Fork Eel River 228 Comment
  RSA20854  Downingia yina C. B. Wolf 1937-6-18 8894 Humboldt 1/2 mile S of Fortuna. 15 Comment
  HSC57990  Draba howellii G. L. Clifton, Terry Griswold 1979-7-31 11738 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC12219  Drosera rotundifolia Gary J. Stebbins 1970-5-10 77 Humboldt S end of Big Lagoon, just S of the Rd. that crosses the marsh, 1.1 mi. N of the Big Lagoon store. Comment
  UC154520  Drymocallis glandulosa var. reflexa Harley P. Chandler June, 1901 1425 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  HSC1034  Dryopteris arguta Gene S. Van Horn 1962-1-6 6 Humboldt 4 mi. E of Yager Cr. Bridge in Carlotta, on Hwy. 36, on bank overlooking the Van Duzen River 152 Comment
  SEINET6424295 Image available Dryopteris dilatata Hicks, Carpenter 1977-7-12 Humboldt Prairie Creek State Park Comment
  CAS-BOT-BC71055  Dryopteris expansa Mrs. H. C. Cantelow 1936-5-18 1378 Humboldt 8 mi. N. of Orick Comment
  HSC58703  Eleocharis acicularis Griswold, Butler 1979-7-11 7086 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC102060  Eleocharis bella M. R. Mesler, Robin Bencie, K. A. Wayman 2011-7-12 1163 Humboldt Patterson Meadows 1555 Comment
  HSC44326  Eleocharis bella Thomas W. Nelson, Jane P. Nelson 1977-6-19 3508 Humboldt Margin of drying pond above Alder Springs 1585 Comment
  CAS-BOT-BC112842  Eleocharis macrostachya Robert F. Thorne; P. Everett 1965-8-9 35338 Humboldt Along Hwy 101 about 3 mi N of Eureka 1 Comment
  UC666873  Eleocharis macrostachya Joseph P. Tracy 1934-8-14 13570 Humboldt Alton 30 Comment
  CAS-BOT-BC112845  Eleocharis macrostachya Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon. Comment
  HSC69758  Eleocharis macrostachya Thomas W. Nelson 1977-9-22 3749 Humboldt E side of SR 101 just N of the Eureka Airport Comment
  UC1100710  Eleocharis pachycarpa Malcolm A. Nobs and S. Galen Smith 1949-8-11 1346 Humboldt marshes on eastern side of Big Lagoon Comment
  HSC73057  Elymus X hansenii M. A. Baker 1980-7-23 3163 Humboldt Near Orleans Mtn. 1859 Comment
  RSA10130  Elymus X hansenii Joseph P. Tracy 1930-7-19 9054 Humboldt South Fork Mountain; open glades long summit near Blake Lookout 1738 Comment
  SEINET201037  Elymus X hansenii Joseph P. Tracy 1930-7-16 9054 Humboldt South Fork Moutain, open glades along summit near Blake lookout. Comment
  HSC100212  Elymus caput-medusae J. P. Smith 2010-6-21 12945 Humboldt Along Friday Ridge Road, 0.4 mi. from junction with Hwy. 299 233 Comment
  HSC58669  Elymus elymoides var. elymoides Gilbert Muth 1979-8-1 12101 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC54641  Elymus glaucus Overton, Butler 1979-7-24 9813 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC187094  Elymus glaucus J. P. Tracy 1902-7-4 1760 Humboldt Immediate vicinity of Eureka 0 Comment
  UC552783  Elymus glaucus Joseph P. Tracy 1935-6-22 13958 Humboldt Holmes Flat North Coast Ranges (along river) 60 Comment
  HSC70693  Elymus multisetus Gail Newton 1980-7-15 1560 Humboldt Near Sims Mtn. 1311 Comment
  UC523866  Elymus multisetus Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1346 Humboldt near bridge on Trinity Highway; Floodplain of Trinity River 152 Comment
  SEINET10831695  Elymus trachycaulus Joseph P. Tracy 1912-7-7 Tracy 3743 Humboldt Eureka. Edge of salt marsh-in wet soil. 0 Comment
  HSC8766  Elymus trachycaulus subsp. trachycaulus J. P. Tracy 1926-7-5 7736 Humboldt Valley of South Yager Creek 762 Comment
  CHSC110737  Enemion stipitatum Dean Wm. Taylor 2011-5-4 21117 Humboldt Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junction with Highway 36. 737 Comment
  HSC54564  Epilobium brachycarpum Overton, Butler 1979-7-24 9583 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC64759  Epilobium brachycarpum Bruce Gordon 1978-8-8 125 Humboldt Redwood National Park, 40 m SW of Bald Hills Rd. about .6 mi. NW of junction of Bald Hills Rd. and K & K Rd. 716 Comment
  HSC99131  Epilobium brachycarpum Cara Witte 2007-7-24 571 Humboldt Titlow Hill. 1 mile north of turn off to Cold Spring. 1484 Comment
  UC505123  Epilobium campestre Joseph P. Tracy 1930-6-15 8743 Humboldt near Bosworth; Larrabee Creek 457 Comment
  UC668304  Epilobium campestre Joseph P. Tracy 1938-7-5 16010 Humboldt 5 mi e Carlotta; Strong's District School House 45 Comment
  UC1196951  Epilobium canum subsp. latifolium Joseph P. Tracy 1920-8-15 5355 Humboldt Rock Creek Northern Coast Ranges, Klamath River 152 Comment
  HSC74500  Epilobium ciliatum subsp. ciliatum Gail Newton 1980-8-10 2047 Humboldt Near Blake Mtn. 1707 Comment
  POM225511  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-12 14379 Humboldt Willow Creek Comment
  HSC103281  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-7 Humboldt Six Rivers National Forest, Lower Trinity District, Grouse Mountain, Forest Service Road 5N04. 1576 Comment
  POM247161  Epilobium ciliatum subsp. watsonii H. E. Parks, S. T. Parks 1937-07 24050 Humboldt Spruce Cove, Trinidad. 64 Comment
  RSA22708  Epilobium ciliatum subsp. watsonii H. E. Parks, S. T. Parks 1937-07 24050 Humboldt Spruce Cove, Trinidad. 64 Comment
  UC1198500  Epilobium densiflorum Joseph P. Tracy 1909-8-1 3059 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS31503  Epilobium densiflorum Joseph P. Tracy 1938-7-5 16003 Humboldt wet place in flat by old Strong's District School house (5 mi e of town); Carlotta 45 Comment
  UC1197009  Epilobium hallianum Joseph P. Tracy 1936-6-28 15028 Humboldt Lake Prairie Bald Mountain 1219 Comment
  HSC55085  Epilobium hornemannii G. L. Clifton, Griswold 1979-7-31 11749 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  SEINET10632319  Epilobium oreganum Joseph P. Tracy 1932-7-16 Tracy 1061 Humboldt Trinity Summit, Corral Prairie 1500 Comment
  HSC55147  Epilobium oregonense G. L. Clifton, Griswold 1979-8-1 12067 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  CHSC12021  Epilobium septentrionale R. N. Bowman 1971-9-12 52 Humboldt Located ca. 1.7 mi se of Myers Flat off of Hwy 101. Ca. 4 ft. above s fork Eel River on e bank. 1066 Comment
  UC62558  Equisetum hyemale subsp. affine P. E. Goddard July 1901 88 Humboldt Hupa Comment
  POM182455  Equisetum laevigatum Joseph P. Tracy 1913-6-16 4142 Humboldt Dinsmore s Ranch, in valley of Van Duzen River. Opposite Buck Mtn. 762 Comment
  HSC880  Equisetum telmateia subsp. braunii D. B. Bader 1963-3-1 10 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  SD90175  Equisetum telmateia subsp. braunii Benjamin C. Stone 1952-6-24 139 Humboldt 15 miles south of Klamath on Hwy. 101 36 Comment
  MACF019709  Equisetum telmateia subsp. braunii C. V. Morton 1955-8-23 27237 Humboldt Roadside near Province Creek State Park entrance Comment
  RSA44367  Eragrostis mexicana subsp. virescens Henry M. Pollard 1947-8-7 1949 Humboldt Klamath River sandbar near Orleans Comment
  UCD64457  Eragrostis pectinacea Collector Unknown 1946-11 Humboldt Orleans. Comment
  CAS-BOT-BC291166  Erechtites glomeratus M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka Comment
  HSC38349  Erechtites glomeratus Peter Sorensen 1976-7-14 Humboldt N Spit Comment
  RSA20844  Erechtites glomeratus C. B. Wolf 1937-6-18 8884 Humboldt Table Bluff between Humboldt Bay and Eel River 30 Comment
  HSC40254  Erechtites minimus Linda M. Barker 1976-8-2 1677 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  CDA5471  Erica lusitanica T. C. Fuller 1961-3-22 5938 Humboldt North slope, Humboldt Hill, Eureka. 0 Comment
  CAS-BOT-BC287477  Ericameria greenei Doris K. Kildale 1925-8-17 1212 Humboldt Trinity Summit at Ranger Station 1828 Comment
  UC169065  Erigeron annuus Joseph P. Tracy 1912-7-4 3724 Humboldt near Hydesville (in orchard); Northern Coast Region 60 Comment
  UC912295  Erigeron biolettii Herbert L. Mason 1928-7-14 4908 Humboldt near Garberville; East Fork Eel River Comment
  RSA93185  Erigeron biolettii F. W. Peirson 1923-7-9 3877 Humboldt Humboldt County State Park Comment
  CAS-BOT-BC296113  Erigeron foliosus var. confinis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  RSA167385  Erigeron foliosus var. mendocinus Joseph P. Tracy 1951-7-24 19625 Humboldt Blue Slide, on Van Duzen River 91 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
  UC1223137  Erigeron inornatus var. inornatus Joseph P. Tracy 1950-7-31 19228 Humboldt about 1 mi n Friday's Camp (open glade where road crosses sides of the ridge); Friday Ridge Comment
  UC581719 Image available Erigeron klamathensis Joseph P. Tracy 1937-7-24 15515 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  POM54263  Erigeron philadelphicus H. P. Chandler 1901-06 1402 A Humboldt Klamath River. Comment
  JEPS41380  Erigeron philadelphicus var. philadelphicus Lincoln Constance 1934-5-26 685 Humboldt s end Dyerville Bridge; South Fork Eel River 45 Comment
  UCD131462  Erigeron philadelphicus var. philadelphicus K. Esau 1935-5-22 s.n. Humboldt Fort Seward. Comment
  UC1223007  Erigeron robustior Joseph P. Tracy 1941-6-29 16964 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  UC468821  Erigeron robustior Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5429 Humboldt near Hubbards Comment
  UC53950  Erigeron strigosus var. strigosus Harley P. Chandler 1901-6-1 1402 Humboldt Klamath River 243 Comment
  JEPS57408  Eriogonum compositum var. compositum L. R. Heckard with T. I. Chuang 1968-7-5 1989 Humboldt 4 1/2 mi n along Mail Ridge road Harris Road (e of Garberville) Comment
  NY323307  Eriogonum greenei E. L. Greene 1876-7-7 s.n. Humboldt Comment
  CDA18250  Eriogonum latifolium G. D. Barbe, T. C. Fuller 1974-6-19 1876 Humboldt North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City. 7 Comment
  UCSB1454  Eriogonum latifolium Parks, H. 1941-08 Humboldt Little River Comment
  RSA766119  Eriogonum latifolium Arthur Menzies 1961-9-3 s.n. Humboldt Samon Comment
  CAS-BOT-BC259543  Eriogonum luteolum var. luteolum Henry M. Pollard 1943-1-1 s.n. Humboldt Orleans Comment
  UC176684  Eriogonum nudum var. nudum Joseph P. Tracy 1912-7-26 3858 Humboldt hills on the Ashfield Ridge North Coast Ranges, Kneeland Prairie, Ashfield Ridge 762 Comment
  CAS-BOT-BC261726  Eriogonum nudum var. oblongifolium Doris K. Kildale 1925-6-28 813 Humboldt Kneeland Prairie 762 Comment
  UC176714  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1912-7-21 3757 Humboldt Alton 30 Comment
  RSA178550  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1950-9-22 19373 Humboldt Slate Creek (Klamath River trip to Orleans.) Comment
  CAS-BOT-BC269867  Eriogonum nudum var. pubiflorum Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek - near Orleans Comment
  HSC38618  Eriogonum nudum var. pubiflorum D. E. Anderson, J. P. Smith 1971-6-21 1113 Humboldt 5.2 mi. E of the bridge over Eel River at Alderpoint, near Humboldt-Trinity county line Comment
  SD42330  Eriogonum umbellatum var. polyanthum Carl B. Wolf 1937-8-13 9221 Humboldt North Coast Range; 8 mi. E. of Hoopa Valley on new road towards Trinity Summit Comment
  HSC63845  Eriogonum umbellatum var. umbellatum M. A. Baker 1979-6-26 913 Humboldt S facing ridge Comment
  HSC40976  Eriophorum crinigerum J. O. Sawyer 1970-6-24 2216 Humboldt Big Hill Rd., E of Hoopa 1189 Comment
  CAS-BOT-BC301015  Eriophyllum lanatum var. achilleoides Doris K. Kildale 1926-5-9 1980 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC301018  Eriophyllum lanatum var. achilleoides Alice Eastwood 1921-7-21 10662 Humboldt Vanduzen [Van Duzen] River Comment
  CDA18219  Eriophyllum lanatum var. achilleoides G. D. Barbe, T. C. Fuller 1974-6-17 1847 Humboldt North Coast Ranges; Shelter Cove, Upper Pacific Drive, at Sea View Rd. 91 Comment
  JEPS34628  Eriophyllum lanatum var. achilleoides Lincoln Constance 1934-5-23 622 Humboldt sw slope, upper end of Look Prairie; Bull Creek Region, South Fork Eel River, Look Prairie 365 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
  UC1223130  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1950-6-15 18790 Humboldt 7 mi n Harris; Jenk's Ranch Comment
  HSC68953  Eriophyllum lanatum var. lanceolatum Jacqueline Greenleaf 1980-7-16 241 Humboldt Near Buck Mountain. 1250 Comment
  UC165856  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1911-7-8 3441 Humboldt about 0.5 mi above mouth Willow Creek (on s bank of river); Northern Coast Ranges, Valley of the Trinity River 152 Comment
  UC176874  Erodium cicutarium Joseph P. Tracy 1912-6-9 3675 Humboldt Alton Northern Coast Region 30 Comment
  HSC102600  Erysimum capitatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1587 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC44569  Erysimum capitatum var. capitatum Brad Klipfel 1973-7-15 187 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC67181  Erysimum capitatum var. capitatum Thomas W. Nelson, James Nelson 1980-6-10 5433 Humboldt Along E side of Red Mtn. 1372 Comment
  RSA0008582  Erysimum menziesii Jennifer Wheeler 2010-5-11 573 Humboldt Samoa Dunes Endangered Plant Protection Area. 0 Comment
  UC1199176  Erysimum menziesii Joseph P. Tracy 1901-4-14 1019 Humboldt sand dunes of ocean beach Northern Coast Region, Humboldt Bay Comment
  UC1005669  Erythronium californicum Frank W. Gould 1939-5-30 826 Humboldt top Horse Mountain 1219 Comment
  UC1225861  Erythronium grandiflorum Joseph P. Tracy 1942-6-23 17255 Humboldt near Water Dog Lakes; Trinity Summit 1828 Comment
  HSC38788  Erythronium grandiflorum subsp. grandiflorum J. P. Smith 1976-5-30 8825 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  HSC70568  Erythronium grandiflorum subsp. grandiflorum M. A. Baker 1980-7-19 3038 Humboldt Near Bret Hole. 1814 Comment
  UC1586940  Erythronium purpurascens Juha Pykala and D. H. Norris 1987-6-11 1586 Humboldt s North Trinity Mountain (w of Crogan Hole); North Trinity Mountain Wilderness Area 1550 Comment
  HSC15502  Erythronium revolutum Paul Shields May 1955 Humboldt Kneeland Comment
  HSC15504  Erythronium revolutum W. D. Stevens 1963-4-15 14 Humboldt 1.5 mi. W of Berry Summit on Hwy 299 Comment
  UC1197643  Erythronium revolutum Ethel Tracy 1907-5-4 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1197645  Erythronium revolutum Joseph P. Tracy 1924-3-30 6634 Humboldt near Bridgeville; Northern Coast Ranges 182 Comment
  HSC104346  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 5 Humboldt Kneeland 854 Comment
  HSC16769  Eschscholzia californica T. W. Beck 1963-4-27 38 Humboldt Humboldt Meridian, Camp Bauer, Korbel Comment
  UC1196289  Eschscholzia californica Joseph P. Tracy 1933-8-6 12934 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  HSC58800  Eucephalus ledophyllus G. L. Clifton, Griswold 1979-7-31 11593 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  HSC58813  Eucephalus ledophyllus G. L. Clifton, Griswold 1979-8-1 12049 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC5706  Euchiton gymnocephalus G. N. Bos 1965-5-15 254 Humboldt 8 mi. W of Berry Summit, along Hwy. 299 762 Comment
  JEPS20487  Euchiton gymnocephalus Joseph P. Tracy 1936-3-22 14784 Humboldt 4 mi se Korbel (near Angels Ranch); North Coast Ranges 304 Comment
  UC1199349  Euchiton gymnocephalus Joseph P. Tracy 1936-8-1 15058 Humboldt 6 mi se Blue Lake (hillsides near Canyon Creek) 365 Comment
  HSC100937  Euonymus occidentalis Miss Handy Jun 1886 335 Humboldt Maple Cr. Comment
  UC1199005  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1906-6-10 2473 Humboldt headwaters of Freshwater Creek near Kneeland Prairie; Northern Coast Ranges, Freshwater Creek 457 Comment
  HSC37664  Eurybia radulina R. Sutherland 1976-8-18 15 .18876 Humboldt Disturbed edge of country road 207 Comment
  SEINET3244015  Euthamia occidentalis S. K. Harris, Charlotte Wilder 1938-1 879 Humboldt Bars of the Van Dusen River, above Blue Slide. Comment
  SEINET4206010  Fallopia convolvulus Chesnut, Drew 1888-7-25 s.n. Humboldt Grouse Creek Comment
  HSC98158  Festuca arundinacea L. M. Malloy 1965-5-16 34 Humboldt Samoa, 1/4 mi. NW of the corner of Thunder Rd. and The Hard Way. Comment
  HSC9849  Festuca californica D. E. Anderson 1965-5-1 3583 Humboldt Along road to Bluff Creek campground, about 3 mi from its junction with Hwy. 96 Comment
  HSC98829  Festuca californica var. californica Cara Witte 2007-5-21 70 Humboldt White Oak Opening. 1257 Comment
  RSA121321  Festuca elmeri H. S. Yates 1936-6-17 5690 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC570335  Festuca idahoensis H. S. Yates 1936-6-17 5697 Humboldt lower nw slope Buck Mountain; South Fork Pk. 792 Comment
  HSC104038  Festuca occidentalis C. Reynolds 2015-3-21 26 Humboldt Willow Creek; At bend in Trinity River, on the east end of Kimtu beach, near Camp Kimtu 135 Comment
  HSC58759  Festuca occidentalis Overton, Butler 1979-7-26 9993 Humboldt Near Willow Creek 1341 Comment
  UC187114  Festuca occidentalis Joseph P. Tracy 1908-6 2705 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD66174  Festuca occidentalis Linda M. Barker 1976-6-14 1598 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  BLMAR435  Festuca rubra Jennifer Anthony-Wheeler 2008-6-18 435 Humboldt Samoa/Malel Dunes 9 Comment
  CAS-BOT-BC278959  Festuca rubra Richard W. Pohl 1963-6-2 9452 A Humboldt Sea beach, Trinidad Beach State Park Comment
  POM126116  Festuca rubra Joseph P. Tracy 1906-6-24 2511 Humboldt South slope of Humboldt Hill, near Field's Landing. Region about Humboldt Bay. 0 Comment
  UC1100358  Festuca rubra Malcolm A. Nobs and S. Galen Smith 1949-8-3 1171 Humboldt Fields Landing Comment
  UC179924  Festuca rubra Joseph P. Tracy 1912-6-9 3649 Humboldt Alton Northern Coast Region 30 Comment
  UCD66392  Festuca rubra Joseph P. Tracy 1938-7-4 15986 Humboldt Valley of South Yager Creek. 762 Comment
  RSA134597  Fragaria californica Percy C. Everett 1959-10-25 23962 Humboldt 14 miles W of Willow Creek on Hwy 299 to Arcata. 503 Comment
  CAS-BOT-BC453518  Fragaria chiloensis David D. Keck; J. Clausen 1935-6-16 3390 Humboldt Mouth of Little River Comment
  CHSC32839  Fragaria chiloensis Lora Anderson 1981-4-26 7 Humboldt Ca. 5 m n on Clam Beach Rd. 0.5 km e of Hwy. 101. 9.5 mi n of Arcata, along roadsides. 0 Comment
  UC154223  Fragaria chiloensis Joseph P. Tracy 1904-4-24 2025 Humboldt Ocean Beach, sand dunes Humboldt Bay Comment
  HSC70777  Fragaria vesca R. York 1980-5-17 550 Humboldt Near Le Perron Peak 1066 Comment
  HSC24051  Fragaria vesca J. O. Sawyer 1971-6-15 2382 Humboldt S of Lipps Camp along Horse Linto Creek 1372 Comment
  UC183556  Fragaria vesca Joseph P. Tracy 1913-6-25 4340 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC457924  Fragaria vesca subsp. californica Doris K. Kildale 1927-4-17 3100 Humboldt Briceland Bridge, 1/2 mi. west of Garberville. 114 Comment
  BLMAR152  Frangula californica subsp. californica Donald Hazlett 1994-6-7 152 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC59959  Frangula purshiana H. E. Parks; S. T. Parks 1935-5-1 5541 Humboldt Spruce Cove, Trinidad. 64 Comment
  HSC18411  Frangula purshiana L. D. Napier 1962-5-19 15 Humboldt 1 mi. E of Arcata on Fickle Hill 168 Comment
  HSC102028  Frasera speciosa M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 930 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC1197623  Fritillaria affinis Joseph P. Tracy 1936-7-7 16042 Humboldt Grouse Mountain 1524 Comment
  UC1197625  Fritillaria affinis Joseph P. Tracy 1933-6-13 12575 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  UC14992  Fritillaria affinis J. P. Tracy 1901-4-26 1045 Humboldt immediate vicinity of Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  CDA3559  Fumaria capreolata Gordon Leppig, Sylvia Leppig 2000-12-7 1523 Humboldt 7th and I Street just west of Post Office, Arcata. Comment
  HSC32861  Galium aparine Thomas W. Nelson, James Nelson 1973-5-28 940 Humboldt McKeown Ranch N of Dinsmore Comment
  POM148009  Galium aparine J. B. Feudge 1923-7-29 727 Humboldt Rohnerville. 15 Comment
  HSC95390  Galium aparine Andrea Pickart 2002-7-21 188 Humboldt Along entrance to Lanphere Dunes at end of Lanphere Rd. Comment
  JEPS6589  Galium aparine Lincoln Constance 1934-5-24 629 Humboldt s slope of Lower Look Prairie; Bull Creek Region, South Fork Eel River 121 Comment
  HSC41285  Galium bolanderi Brad Klipfel 1974-7-23 477 Humboldt Horse Mtn. Comment
  RSA47104  Galium californicum Doris K. Kildale 1925-7-19 1053 Humboldt Bridgeville. 290 Comment
  JEPS52865  Galium californicum subsp. californicum Lauramay T. Dempster and Jean Colton 1963-8-7 3886 Humboldt 0.8 mi w Briceland (on road to Shelter Cove) Comment
  JEPS6496  Galium parisiense W. L. Jepson 1902-6 1981 Humboldt Hupa Comment
  UC213506  Galium parisiense Joseph P. Tracy 1920-7-11 5343 Humboldt near Arcata (around Humboldt Bay); Northern Coast Ranges, Fickle Hill 304 Comment
  HSC39330  Galium parisiense J. P. Smith 1976-10-30 8994 Humboldt Mad River, E of Essex Lane exit. Comment
  HSC34703  Galium triflorum Thomas W. Nelson 1974-7-20 1701 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC99083  Galium triflorum Cara Witte 2008-7-28 954 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  JEPS20468  Gamochaeta coarctata Joseph P. Tracy 1936-8-1 15057 Humboldt 6 mi se Blue Lake; Canyon Creek 365 Comment
  CAS-BOT-BC303397  Gamochaeta ustulata L. R. Abrams 1916-7-11 6021 Humboldt Mouth of Grizzly Creek on Van Duzon River Comment
  HSC33077  Gamochaeta ustulata Thomas W. Nelson, Jim Ackerman 1974-5-14 1266 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  HSC46966  Gamochaeta ustulata J. P. Smith, Thomas W. Nelson 1977-6-30 9213 Humboldt Samoa Peninsula just E of the drag strip. Comment
  UC485684  Gamochaeta ustulata Joseph P. Tracy 1912-6-9 3648 Humboldt Alton Northern Coast Region 30 Comment
  UC562617  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  CAS-BOT-BC303396  Gamochaeta ustulata M. S. Jussel 1931-5-2 s.n. Humboldt Near Garberville Comment
  HSC41276  Garrya buxifolia Brad Klipfel 1974-6-25 430 Humboldt Horse Mtn. Comment
  CAS-BOT-BC188542  Garrya elliptica Doris K. Kildale 1929-3-19 7027 Humboldt 7 miles from Essex -- top of Liscom Hill Comment
  CAS-BOT-BC188545  Garrya elliptica Joseph P. Tracy 1939-3-19 16203 Humboldt Bluffy hillside; Root Grade near Blue Slide on Van Duzen River 91 Comment
  CAS-BOT-BC188549  Garrya elliptica J. P. Tracy 1901-2-15 992 Humboldt Immediate vicinity of Eureka 152 Comment
  HSC89422  Garrya elliptica P. A. Daly 1984-5-13 18 Humboldt Along trail at Trinidad Head 61 Comment
  RSA183514  Garrya elliptica R. I. Bonn 1965-3-5 3 Humboldt Four miles west of Arcata on Lanphere Road. Comment
  SBBG22046  Garrya elliptica R. F. Thorne 1957-9-3 19023 Humboldt Patrick's Point State Park Comment
  SEINET3890980  Garrya elliptica C. Davidson 2011-1-26 11826 Humboldt Moonstone Beach, north of McKinleyville.; 0 Comment
  CAS-BOT-BC182145  Garrya fremontii L. B. Kildale 1931-10-1 s.n. Humboldt Bug Creek, Caparall Mt. 1097 Comment
  CAS-BOT-BC182148  Garrya fremontii L. B. Kildale 1930-8-10 10534 Humboldt Snow Camp, head of Redwood Creek Comment
  CAS-BOT-BC182150  Garrya fremontii Carl B. Wolf 1930-10-24 1762 Humboldt Along the Klamath River, 1 mile above the mouth of Slate Creek 243 Comment
  UCD66720  Gastridium phleoides Joseph P. Tracy 1936-6-10 14926 Humboldt West of mouth of South Fork of Trinity River. 457 Comment
  UC38566  Gastridium ventricosum Harley P. Chandler 1901-6-1 1506 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  CAS-BOT-BC56267  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  CHSC593  Gaultheria shallon Vesta Holt 1941-5-30 Humboldt Comment
  HSC45586  Gaultheria shallon Diane L. Reed 1978-5-27 140 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  HSC7813  Gaultheria shallon D. B. Bader 1963-4-1 48 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101, E bank of the lagoon Comment
  HSC98781  Gaultheria shallon Cara Witte 2008-6-27 771 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1365 Comment
  HSC98970  Gaultheria shallon Cara Witte 2008-8-5 993 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  RSA249502  Gaultheria shallon R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35131 Humboldt Wailaki Recreation site. 518 Comment
  UC1120973  Gaultheria shallon R. Stahelin 1933-7-31 Humboldt Korbel Comment
  UC153966  Gaultheria shallon Joseph P. Tracy 1908-6 2863 Humboldt opposite of Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC76214  Gayophytum racemosum Overton, Butler 1979-7-24 9729 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  CAS-BOT-BC217394  Gentiana affinis var. ovata L. R. Abrams 1916-7-20 6143 Humboldt Eureka Comment
  JEPS47044  Gentiana affinis var. ovata Joseph P. Tracy 1930-7-27 9110 Humboldt Bear River Ridge North Coast Ranges 609 Comment
  UC1541479  Gentiana sceptrum Harold E. Parks Jul 1931 1052 Humboldt Trinidad 76 Comment
  UC534995  Gentiana sceptrum H. E. Parks 1931-7-1 10152 Humboldt Bishop Pine Lodge Trinidad 76 Comment
  POM318969  Gentiana sceptrum Patricia Wilder 1968-8-21 4390 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  RSA245252  Gentiana sceptrum David K. Smith 1968-10-26 30 Humboldt At Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  HSC23999  Geranium bicknellii Tim Baroni 1971-7-6 125 Humboldt 15 mi. S of Ferndale on Mattole Rd. Comment
  CHSC31298  Geranium dissectum Mark Stopher 1980-7-18 120 Humboldt In diked off upland habitat along Elk River near Hwy 101 bridge. 1 Comment
  CHSC673  Geranium dissectum M. Underhill 1952-7-13 Humboldt Coastal. 0 Comment
  HSC8655  Geranium molle Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  RSA600894  Geranium molle Louis C. Wheeler 1959-8-2 7622 Humboldt Shelter Cove. Comment
  HSC44760  Geranium oreganum Maralyn O'Meara 1972-6-8 80 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  CAS-BOT-BC457031  Geum macrophyllum Volney Rattan 1883-3-6 s.n. Humboldt Unspecified Comment
  HSC16967  Gilia capitata J. Wendell Howe 1931-6-7 Humboldt Wildcat Rd. W of Ferndale Comment
  UC1225824  Gilia capitata subsp. capitata Joseph P. Tracy 1948-6-13 18051 Humboldt 2 mi n Harris; near Harris 609 Comment
  SD197869  Gilia millefoliata Peter L. Morrell 1993-6-9 280 Humboldt Samoa Peninsula near Eureka, along Highway 255, 1.5 mile south of Samoa intersection, west side of highway. 7 Comment
  HSC70953  Githopsis specularioides R. York 1980-5-17 522 Humboldt Near Le Perron Peak 792 Comment
  BLMAR561  Glyceria elata Clara Sander 2009-8-21 561 Humboldt Lacks Creek, in a ditch near where main lacks Creek parking lot is to be 975 Comment
  SEINET200359 Image available Glyceria elata J. P. Tracy 1935-7-25 114251 Humboldt Trinity Summit lower end of Brett Hole 1585 Comment
  SEINET267680 Image available Glyceria occidentalis Gordon Leppig 1995-4-6 243 Humboldt Arcata; Alder Grove Pond. 12 Comment
  CAS-BOT-BC304754  Grindelia hirsutula H. E. Parks 1941-8-1 24190 Humboldt Big Lagoon Comment
  UC199436  Grindelia hirsutula Joseph P. Tracy 1938-7-15 16075 Humboldt Mouth of Eel River 3 Comment
  UC1552453  Grindelia hirsutula R. D. Goeden 1987-9-2 21 Humboldt on bank above Mattole Road; Cape Mendocino (Cape Ridge) 182 Comment
  HSC100391  Gymnogramma triangularis Carl C. Marshall Apr 1886 48 Humboldt Dry hills. Comment
  UC525565  Hackelia bella Joseph P. Tracy Jul 16 1930-Jul 19 1930 9023 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC57650  Hackelia micrantha G. L. Clifton, Griswold 1979-7-25 10820 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC1713302  Hackelia setosa Joseph P. Tracy 1937-7-25 15547 Humboldt Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  UCD85239  Hainardia cylindrica Joseph P. Tracy 1938-7-15 16071 Humboldt Mouth of Eel River. 3 Comment
  HSC61032  Hastingsia alba T. Jimerson, J. Pageau 1979-8-10 731 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  UC303042  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1463 Comment
  UC667133  Hastingsia alba Joseph P. Tracy 1935-7-24 14195 Humboldt Trinity Summit near Ranger Station; Trinity Summit 1828 Comment
  CAS-BOT-BC302440  Hazardia whitneyi var. discoidea Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC58205  Helenium bigelovii Walter Overton 1979-8-1 12319 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  CAS-BOT-BC306872  Helenium bolanderi Dr. A. Kellogg; W. G. W. Harford 1868-1-1 469 Humboldt Unspecified Comment
  UC1409057  Helenium bolanderi Robert F. Thorne and P. Everett 1965-8-7 35194 Humboldt at s end Big Lagoon 1 Comment
  POM203674  Helenium bolanderi I. L. Wiggins 1932-7-19 5891 Humboldt 1.5 miles N of Trinidad Head. Comment
  HSC45215  Hemitomes congestum Louise Watson, Mary Lou Schreiber 1978-9-29 Humboldt West side of summit, 1/4 mi. N. of McKinleyville-Fieldbrook Rd. Bulk Collection 137 Comment
  HSC5819  Hemizonia congesta subsp. tracyi H. E. Parks May 1934 5076 Humboldt Bridgeville 152 Comment
  JEPS12587  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1937-7-19 15456 Humboldt lower foothills of its nw slope Buck Mountain 914 Comment
  LA203693  Hemizonia congesta subsp. tracyi S. K. Harris; 1936-6-20 sn Humboldt above Van Duzen River about 1 mi. W of Bridgeville 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
  UC249839  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1923-6-24 6357 Humboldt around Murphy Meadow; Northern Coast Ranges, Bald Mountain 1066 Comment
  CDA20030  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 1 of 3 0 Comment
  JEPS14232  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad R. 15 Comment
  HSC91938  Heracleum maximum E. Mackey 1987-3-1 Humboldt Patrick's Point State Park, Palmer's Point Comment
  HSC99511  Heracleum maximum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 173 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
  HSC13055  Hesperocyparis macrocarpa C. E. Fellows 1970-12-7 368 Humboldt HSC Campus, Arcata Comment
  HSC98086  Heterocodon rariflorum Cara Witte 2007-7-11 486 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  UC169328  Heterocodon rariflorum Joseph P. Tracy 1908-6 2831 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  SEINET10460663  Heterocodon rariflorum Tracy TRACY 3329 Humboldt WILLOW CR. Comment
  UC195431  Heteromeles arbutifolia Joseph P. Tracy 1915-8-2 4664 Humboldt 3 mi above Carlotta (Yager Creek); Northern Coast Ranges, Yager Creek 91 Comment
  RSA0075926  Heterotheca oregona S. K. Harris 1938-8-24 881 Humboldt Sand of Eel River, near Fernbridge. Comment
  UC165074  Heterotheca oregona var. rudis Joseph P. Tracy 1900-9-10 950 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC96272  Heuchera micrantha J. Breton, A. Livingston 2005-6-15 11 Humboldt NE of Grouse Mtn. 1327 Comment
  RSA0066094  Heuchera micrantha var. diversifolia Thomas W. Nelson, Jane Nelson 1976-7-1 2904 Humboldt Along serpentine ridge N of Bear Creek. 1463 Comment
  CHSC1635  Heuchera micrantha var. pacifica M. Underhill 1952-7-12 Humboldt Coastal cliffs. 3 Comment
  HSC67473  Hieracium albiflorum J. P. Smith, Steve Selva 1970-6-14 3834 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  BLMAR217  Hieracium albiflorum Jennifer Anthony-Wheeler 1996-7-9 217 Humboldt Pilot ridge. 1280 Comment
  HSC95113  Hieracium albiflorum Andrea Pickart 2002-6-30 130 Humboldt Lamphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  RSA47102  Hieracium albiflorum Doris K. Kildale 1925-7-15 1088 Humboldt Eureka Slough. Comment
  HSC56999  Hieracium bolanderi Overton, Butler 1979-7-24 9580 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC57619  Hieracium greenei G. L. Clifton, Griswold 1979-7-25 10744 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC74490  Hieracium greenei M. A. Baker 1980-7-24 3209 Humboldt Near Orleans Mtn. 1625 Comment
  UC205670  Hierochloe occidentalis Joseph P. Tracy 1918-4-21 4882 Humboldt around Humboldt Bay (old Kneeland Road); Northern Coast Ranges 304 Comment
  HSC49817  Hippuris vulgaris R. York 1979-4-16 237 Humboldt Between Arcata and Eureka along Hwy. 101 Comment
  HSC10121  Holcus lanatus H. E. Parks, S. T. Parks Aug 1943 24260 Humboldt Spruce Cove, Trinidad. 61 Comment
  HSC39956  Holcus lanatus Linda M. Barker 1976-6-22 1614 Humboldt 3 mi. W of Arcata Comment
  SD40095  Holcus lanatus Edith A. Purer 1932-7-30 4672 Humboldt South of Orick Comment
  HSC18669  Holodiscus discolor H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  SD51265  Holodiscus discolor Darley F. Howe 1961-8-1 Humboldt 3.3 miles north of Trinidad on #101 Comment
  UC1198704  Holodiscus discolor Joseph P. Tracy 1911-7-5 3293 Humboldt near mouth of Willow Creek (Northern Coast Ranges, Valley of Trinity River); Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC666849  Holodiscus discolor Joseph P. Tracy 1935-7-14 14061 Humboldt Horse Mountain 1066 Comment
  CAS-BOT-BC149904  Holodiscus discolor J. H. Thomas 1949-6-14 925 Humboldt Klamath River Valley between Weitchpec and Hoopa Comment
  LA83708  Holodiscus discolor O. H. Kappler; 1946-7-24 1372 Humboldt Humboldt Bay, close to beach Comment
  HSC10163  Hordeum brachyantherum D. J. McVean 1965-5-22 85 Humboldt In field W of Jackson Rd., 1/4 mi N of Samoa Blvd. Comment
  HSC89903  Hordeum brachyantherum Leonel Arguello 1989-6-11 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  HSC37518  Hordeum depressum J. D. Ackerman, A. M. Montalvo 1975-8-9 630 Humboldt Arcata, Hwy. 101 and Giuntoli Ln. Comment
  HSC79356  Hordeum murinum subsp. glaucum Kenneth Clark 1980-5-10 644 Humboldt Shelter Cove, coastal bluffs of Point Delgada 3 Comment
  BLMAR21  Hordeum murinum subsp. leporinum Brad Barr June, 1982 21 Humboldt King range, Spanish flat, smith cabin Comment
  HSC10203  Hordeum murinum subsp. leporinum L. M. Malloy 1965-4-23 45 Humboldt Samoa 1/4 mi. NW of the corner of Thunder Rd. and The Hard Way. Comment
  UC902137  Horkelia californica Joseph P. Tracy 1942-9-20 17323 Humboldt 2 mi s town (along edges of foothills); Field's Landing 6 Comment
  HSC76241  Horkelia tridentata var. flavescens Denis Kearns 1981-6-24 9 Humboldt Near Cedar Camp 1219 Comment
  HSC95387  Hydrocotyle ranunculoides Andrea Pickart 2002-7-19 186 Humboldt Arcata Marsh in Log Pond 10 Comment
  HSC75468  Hydrophyllum fendleri var. albifrons J. O. Sawyer 1980-7-18 3615 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC562599  Hydrophyllum occidentale Joseph P. Tracy 1933-7-11 12700 Humboldt Grouse Mountain; North Coast Ranges, Trinity Summit 1524 Comment
  HSC13557  Hydrophyllum occidentale H. E. Parks, J. P. Tracy 1935-6-16 Humboldt Buck Mtn. Comment
  JEPS1637  Hydrophyllum tenuipes Joseph P. Tracy 1918-6-16 4954 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC906638  Hydrophyllum tenuipes H. E. Parks and Joseph P. Tracy 1949-6-25 11674 Humboldt Box Camp; Trinity Summit 1463 Comment
  UC213008  Hydrophyllum tenuipes Joseph P. Tracy 1920-5-18 5318 Humboldt Bull Creek Northern Coast Ranges (along Eel River from South Fork to Scotia) 60 Comment
  UC668260  Hypericum formosum var. scouleri Joseph P. Tracy 1935-7-21 14112 Humboldt opposite mouth of Willow Creek (Lack Pond); Trinity R. Valley, Lack Pond 152 Comment
  UC1046635  Hypericum perforatum J. I. Mallory 1955-9-17 123 Humboldt 3/8 mi. n.-n.w. Cottrell Ranch headquarters (V-Plot 1); Quad. 29A-2 746 Comment
  UC1198400  Hypericum perforatum Joseph P. Tracy 1934-7-9 13346 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC401231  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt Near Klamath River, about 1/2 mile north of town of Orleans Comment
  POM311762  Hypericum perforatum Karen Hosterman 1957-8-29 1109 Humboldt 7 miles from Orleans, within 1 mile of junction of Klamath Road and Red Cap Creek. 114 Comment
  CAS-BOT-BC312887  Hypochaeris glabra Alice Eastwood 1923-8-16 12326 Humboldt Carlotta Comment
  UC1223075  Hypochaeris glabra Joseph P. Tracy 1950-6-23 18866 Humboldt Dobbyn Creek 213 Comment
  HSC78973  Hypochaeris glabra L. P. Janeway, Paul Wilson 1984-5-7 760 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  HSC39801  Hypochaeris radicata Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  HSC67871  Hypochaeris radicata J. P. Smith 1973-5-26 6879 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC96744  Iliamna latibracteata M. Mesler 2006-7-28 625 Humboldt E of Grouse Mtn., 2.1 mi. from NF 1, below road. 1448 Comment
  UC204418  Ionopsidium acaule Mrs. R. D. Douglas 1918-5-4 Humboldt near Ferndale Cemetary (Ferndale); Northern Coast Ranges, Ferndale 15 Comment
  HSC63146  Ipomopsis aggregata subsp. aggregata M. A. Baker 1979-6-28 939 Humboldt Jct. of Tish Tang A Tang Creek and trail N of Grogan Hole Comment
  HSC33061  Iris douglasiana Thomas W. Nelson 1974-5-7 1240 Humboldt Beside the old Kneeland Rd. Comment
  SEINET4170680  Iris douglasiana Unknown 1934-6-8 Humboldt Bolling Grove State Park. Comment
  UC1196394  Iris douglasiana Joseph P. Tracy 1934-8-31 13644 Humboldt Kneeland Prairie 762 Comment
  POM290985  Iris douglasiana Lyman Benson 1928-7-7 399 Humboldt Weott Ranger Station; seaward North Coast mt. range, South Fork Eel River drainage 61 Comment
  RSA254791  Iris douglasiana Thomas W. Nelson 1974-5-7 1240 Humboldt Beside the old Kneeland Rd. Comment
  SEINET12049821  Iris douglasiana F. H. Utech 1986-1 86 -395 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  UC702924  Iris douglasiana Alice Eastwood and John Thomas Howell 1937-6-23 4845 Humboldt 5 mi from Kneeland (on road to Yager) Comment
  UC667116  Iris macrosiphon Joseph P. Tracy 1938-3-27 15700 Humboldt Miranda South Fork of Eel River (along South Fork of Eel River) 121 Comment
  RSA134578  Iris purdyi Percy C. Everett, E. K. Balls 1959-10-26 23976 Humboldt 5.3 mi SE from Honeydew along old coast road to Ettersburg. 427 Comment
  CAS-BOT-BC133694  Iris tenax L. W. Lenz 1953-5-17 18317 Humboldt 1 mi. below Somes Bar on Klamath River 179 Comment
  SEINET12045029  Iris tenax T. Jimerson, Pageau, J. 1979-1 436 Humboldt on Forest Road 12N20, 0.2 mi N of Forest Road 15N01 (G.O. Road), Orleans 710 Comment
  HSC67518  Iris tenuissima J. P. Smith, J. O. Sawyer 1976-5-2 8620 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  UC1046540  Iris tenuissima R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3414 Humboldt ridge between Mad River and Redwood Creek (about Snow Camp, Bald Mountain); Bald Mountain, Snow Camp 1432 Comment
  UC429166  Iris tenuissima P. E. Goddard 1907-5-29 103 Humboldt Van Duzen Comment
  CAS-BOT-BC88654  Isatis tinctoria J. H. Thomas 1949-6-12 900 Humboldt Near Klamath River, about 0.5 mile north of town of Orleans. Comment
  CAS-BOT-BC69937  Isoetes howellii Joseph P. Tracy 1930-6-15 8746 Humboldt Larrabee Creek, near Bosworth's. 457 Comment
  HSC90882  Isolepis cernua Gail Newton 1982-6-10 3596 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC97440  Isolepis cernua Ivy Watson 2008-10-11 53 Humboldt N of river mouth, along small tributary E of sand dunes 4 Comment
  UCR48590  Jaumea carnosa R. D. Goeden, Don W. Ricker 1987-9-2 870902- 18 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  UC185007  Juncus balticus subsp. ater Joseph P. Tracy 1912-7-21 3787 Humboldt Alton Northern Coast Region 30 Comment
  HSC36046  Juncus bolanderi Thomas W. Nelson 1975-9-24 2201 Humboldt Beside Indianola Rd., 0.5 mi. E of junction with Hwy. 101 Comment
  CHSC2217  Juncus breweri M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  HSC14013  Juncus breweri S. J. Moore 1965-5-3 6 Humboldt Gold Beach near waters edge by lake Comment
  HSC91873  Juncus bufonius E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  HSC67455  Juncus bufonius J. P. Smith 1971-10-9 5009 Humboldt Mad River above the Fish Hatchery. Comment
  UCD170786  Juncus bufonius var. bufonius Gordon Leppig 1998-5-11 757 Humboldt Rt. #101 mile marker 97.71. 30 Comment
  HSC14098  Juncus bufonius var. occidentalis H. E. Parks, J. P. Tracy 1935-6-16 11273 Humboldt Buck Mt., lower NW slopes 793 Comment
  HSC34710  Juncus effusus subsp. pacificus Thomas W. Nelson 1974-7-20 1695 Humboldt McKeown Ranch N of Dinsmore Comment
  SEINET3878826  Juncus effusus var. pacificus Thomas Nelson 1974-7-20 1695 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  HSC70986  Juncus exiguus Gail Newton 1980-7-20 1652 Humboldt Near Bell Swamps 1426 Comment
  UC167841  Juncus falcatus subsp. sitchensis Schmidt Humboldt Humboldt Bay Comment
  HSC40774  Juncus laccatus Thomas W. Nelson 1976-7-9 3013 Humboldt S of Mt. Lassic (Signal Peak) 1707 Comment
  UC1152103  Juncus laccatus Joseph P. Tracy 1930-7-23 9135 Humboldt Cold Springs Horse Springs Comment
  HSC39758  Juncus lescurii Peter Sorensen 1976-8-8 Humboldt Woodley Island Comment
  UC1152001  Juncus occidentalis Joseph P. Tracy 1937-8-3 15609 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  UC249746  Juncus occidentalis Joseph P. Tracy 1923-6-19 6295 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  RSA53820  Juncus patens Henry M. Pollard 1945-8-27 s.n. Humboldt Pond near Harley Place, near Orleans. Comment
  CAS-BOT-BC237833  Keckiella lemmonii Joseph P. Tracy 1929-8-4 8648 Humboldt Ridge between Bull Creek and Mattole River 762 Comment
  JEPS10903  Keckiella lemmonii Lincoln Constance 1934-6-27 937 Humboldt Dyerville South Fork Eel River, Bull Creek Region (near Eel River junction with South Fork, on s side of Eel River, 0.5 mi nw of South Fork P.O. and railroad station, end of railroad bridge) Comment
  SEINET200339 Image available Koeleria macrantha J. P. Tracy 1908-7-5 2778 Humboldt NW slope of Buck Mt 914 Comment
  UC50517  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5478 Humboldt Elk Prairie Comment
  UC1196128  Kopsiopsis strobilacea Joseph P. Tracy Jul 16-19, 1930 9030 Humboldt Northern Coast Ranges. South Fork Mountain, along summit near Blake lookout. 1706 Comment
  HSC5894  Lactuca saligna R. I. Bonn 1965-10-1 Humboldt 2 mi. N of Bridgeville on May Ranch 701 Comment
  UC1239533  Lactuca serriola Joseph P. Tracy 1946-8-25 17650 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  UC1239535  Lactuca serriola Joseph P. Tracy 1934-8-14 13577 Humboldt Holmes Flat North Coast Ranges, Holmes Flat 60 Comment
  UC668198  Lagophylla ramosissima Joseph P. Tracy 1938-7-4 15993 Humboldt Valley of South Yager Creek 762 Comment
  JEPS87028  Lapsana communis Dean W. Taylor 1991-9-15 12293 Humboldt near the mouth Tom Creek (along Highway 101); North Coast Ranges, Big Lagoon 3 Comment
  CAS-BOT-BC337993  Lasthenia californica L. B. Kildale 1930-6-1 9767 Humboldt Klamath River at Bluff Creek Comment
  UC1199135  Lasthenia californica subsp. californica Joseph P. Tracy 1932-5-1 9856 Humboldt Redway 182 Comment
  UC582761  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-26 10265 A Humboldt valley South Yager Creek 762 Comment
  UC1199133  Lasthenia californica subsp. californica Joseph P. Tracy 1925-5-17 6987 Humboldt at Berry's, Redwood Creek Northern Coast Ranges, Redwood creek 274 Comment
  UC169322  Lasthenia glaberrima Joseph P. Tracy 1912-6-9 3690 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC14707  Lathyrus glandulosus Lincoln Constance 1934-6-8 837 Humboldt S Fork Eel River, Cow Creek Fire Trail, from Bull Creek Rd., N over the divide, into the headwaters of Bear Creek. Comment
  POM128967  Lathyrus jepsonii subsp. californicus M. H Manning 1900-1 s.n. Humboldt Hupa Valley Comment
  UC1199077  Lathyrus jepsonii var. californicus Joseph P. Tracy 1927-5-8 7987 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  HSC26882  Lathyrus latifolius Clifton Raymond Chesbrough 1973-6-19 89 Humboldt 0.5 mi. S of Trinidad along the coast Comment
  HSC47485  Lathyrus littoralis Sheila Logan 1978-4-7 3 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  POM199443  Lathyrus littoralis H. E. Parks 1930-5-24 0798 Humboldt Little River Lagoon. Comment
  UCD106378  Lathyrus littoralis Linda M. Barker 1976-6-1 1560 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC709416  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1935-7-25 14247 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  UC15357  Lathyrus torreyi H. N. Bolander 1867-1 6506 Humboldt Shelter Cove Comment
  UCD106657  Lathyrus torreyi K. Esau 1934-5-8 s.n. Humboldt Redwood Highway near Scotia. Comment
  JEPS55297  Lathyrus torreyi Milo S. Baker 1923-7-20 57 Humboldt road to Yager from Redwood House 609 Comment
  RSA64962  Lathyrus torreyi C. L. Hitchcock 1949-6-7 19084 Humboldt Ca 15 miles E of Blue Lake, along Highway #299. Comment
  HSC23072  Lathyrus tracyi Richard Spjut 1971-5-7 1859 Humboldt 2-4 mi. up Three creeks Rd., W of Willow Creek 457 Comment
  RSA20842  Lathyrus vestitus subsp. bolanderi Carl B. Wolf 1937-6-18 8882 Humboldt Table Bluff - between Humboldt Bay and Eel River. 30 Comment
  HSC64139  Lathyrus vestitus subsp. vestitus J. P. Smith, J. O. Sawyer, J. Cole 1977-7-2 3051 Humboldt Rd. 11N17 between Dagsaw Springs and Divide Lake 793 Comment
  CAS-BOT-BC325995  Layia carnosa David D. Keck; J. Clausen 1935-6-16 3381 Humboldt Mouth of Little River. Comment
  CAS-BOT-BC325998  Layia carnosa Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  SBBG8723  Layia carnosa H. and M. Dearing 1939-5-25 3440 Humboldt near Samoa Comment
  UC581805  Layia gaillardioides Joseph P. Tracy 1936-6-9 14875 Humboldt Bear River Ridge 609 Comment
  HSC36107  Lemna minor Neil D. Ledet 1973-11-29 7 Humboldt 16 mi. S of Ferndale, N side of Cape Town along county Rd., floating on ranch pond Comment
  UC1101253  Lemna minuscula Malcolm A. Nobs, S. Galen Smith 1949-8-9 1247 Humboldt Clam Beach Comment
  CAS-BOT-BC341824  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC12543  Leucanthemum vulgare C. Kline 1970-10-26 40 Humboldt W end of School Rd., McKinleyville, above Mad River. Comment
  HSC89757  Leucanthemum vulgare M. Roantree 1985-5-15 49 Humboldt E side of Trinidad Head. Comment
  HSC101968  Lewisia nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 864 Humboldt Patterson Meadows 1555 Comment
  HSC48837  Lewisia nevadensis Brad Klipfel, J. O. Sawyer, J. P. Smith 1973-5-27 28 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  JEPS5842  Lewisia nevadensis Joseph P. Tracy 1932-7-10 10377 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC99548  Ligusticum apiifolium K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 213 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC74325  Ligusticum californicum M. A. Baker 1980-6-16 1957 Humboldt Near Onion Mtn. 1280 Comment
  HSC56004  Ligusticum grayi Overton, Butler 1979-7-31 11455 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC13238  Ligustrum ovalifolium Jana Kattenhorn 1970-10-24 105 Humboldt HSC Campus, S of building 37 Comment
  UCR39795  Lilium bolanderi D. K. Imper 1983-7-12 s.n. Humboldt Six Rivers National Forest. Along13N01 roadside c. 3.5 mi north of Blue Lake 915 Comment
  UC176188  Lilium columbianum Joseph P. Tracy 1913-7-13 4356 Humboldt Patrick's Point; Northern Coast Ranges 30 Comment
  CAS-BOT-BC508391  Lilium columbianum Doris K. Kildale 1927-6-26 3596 Humboldt Patrick's Point Comment
  UC180211  Lilium columbianum Joseph P. Tracy 1914-9-7 4617 A Humboldt 10 mi e Korbel (near the Bald Mt. House); Northern Coast Ranges 914 Comment
  SEINET3992215  Lilium pardalinum Unknown 1948-9-5 18196 Humboldt Trinity Summit, head of Little Hors-Linto Creek 1372 Comment
  UC303044  Lilium pardalinum Joseph P. Tracy 1926-6-27 7668 Humboldt Horse Mountain; Northern Coast Ranges 1463 Comment
  HSC36887  Lilium pardalinum subsp. pardalinum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2060 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  JEPS99290  Lilium rubescens H. and M. Dearing 1939-6-27 3730 Humboldt near Dinsmore (Van Duzen River) 730 Comment
  UC1222535  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1950-7-1 18951 Humboldt near Friday Camp ((to Grouse Mt.)); Friday Ridge 1219 Comment
  UC275336  Limnanthes douglasii Joseph P. Tracy 1924-5-4 6667 Humboldt near Bridgeville; Northern Coast Ranges 304 Comment
  UC971841  Limnanthes douglasii subsp. nivea Charles T. Mason Jr. 1949-4-29 1284 Humboldt 3.3 mi n Blocksburg (along road from Harris to Bridgeville) Comment
  HSC1801  Limonium californicum William J. Ferlatte, B. D. Rogers 1966-8-15 3126 Humboldt Near Arcata sewage pond, N Humboldt Bay. Comment
  HSC22526  Limonium californicum Wm. F. Bowman 1968-11-9 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  UC154019  Limonium californicum Joseph P. Tracy 1901-8-7 1254 Humboldt Samoa Northern Coast Region, Region about Humboldt Bay (salt marsh) 0 Comment
  UC146049  Linanthus androsaceus P. E. Goddard 1907-5-26 100 b Humboldt Van Duzen Comment
  UC1198575  Linanthus bicolor Joseph P. Tracy 1933-7-3 12636 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC15799  Linum bienne John A. Dubois 1962-5-12 13 Humboldt 20 mi. E of Arcata Comment
  HSC43105  Linum grandiflorum Maralyn O'Meara 1974-5-14 358 Humboldt Along Hwy. 36 ca. 2.4 mi. E of Bridgeville. Comment
  UC666981  Listera caurina Joseph P. Tracy 1937-8-12 15648 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC36107  Lithocarpus densiflorus var. densiflorus Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 762 Comment
  CAS-BOT-BC36148  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-8-22 2569 Humboldt Bald Hills, east end of Tomlinson's prairie 716 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
  RSA247208  Lithocarpus densiflorus var. densiflorus Gary D. Wallace 1971-7-28 946 Humboldt Along King Range Co. Rd. ca. 4 mi SE of Shelter Cove. Comment
  HSC96204  Lithophragma parviflorum Jennifer Lumbert, James Robinson 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on NF 1 1205 Comment
  UC673076  Lobularia maritima Joseph P. Tracy 1940-10-5 16750 Humboldt near beach on isthmus leading to Trinidad Head Trinidad 3 Comment
  CAS-BOT-BC283400  Lolium multiflorum Henry M. Pollard 1948-7-27 s.n. Humboldt Road to Red Cap Creek near Orleans Comment
  HSC100489  Lolium perenne Carl C. Marshall Jun 1886 226 Humboldt Near Arcata. Comment
  HSC27040  Lolium perenne Brad Klipfel 1973-8-24 283 Humboldt Roadside waste near Hwy. 101 Comment
  UC180491  Lolium perenne Joseph P. Tracy 1913-6-10 4088 Humboldt Bridgeville; Northern Coast Ranges, Bridgeville 304 Comment
  UC906634  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1947-7-5 17779 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC102607  Lomatium macrocarpum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1594 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC70564  Lomatium macrocarpum M. A. Baker 1980-7-23 3141 Humboldt Near Orleans Mtn. 1859 Comment
  UC1714577  Lomatium utriculatum unknown 1191 Humboldt Humboldt Bay Comment
  RSA168961  Lonicera conjugialis Joseph P. Tracy 1950-8-8 19287 Humboldt Croghan Hole, on Trinity Summit 1677 Comment
  CAS-BOT-BC240475  Lonicera hispidula John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC240478  Lonicera hispidula L. B. Kildale 1930-9-21 10216 Humboldt Bluff Creek trail to Fish Lake Comment
  HSC3942  Lonicera hispidula var. vacillans W. D. Stevens 1967-7-16 44 Humboldt Along dirt rd. from Hwy. 101 to top of N bank of Mad River. Comment
  UCD137380  Lonicera involucrata Roman Gankin 1965-8-6 547 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  CAS-BOT-BC241483  Lonicera involucrata var. ledebourii Joseph P. Tracy 1937-6-20 15343 Humboldt Bear River, ten miles up stream from the mouth 152 Comment
  CAS-BOT-BC241497  Lonicera involucrata var. ledebourii S. K. Harris 1936-6-8 3230 Humboldt At Centerville Comment
  CHSC68491  Lonicera involucrata var. ledebourii Vernon H. Oswald 1997-4-10 8319 Humboldt Road paralleling Hwy 101 between Clam Beach and Little River State Beach, north of Arcata. 30 Comment
  HSC3928  Lonicera involucrata var. ledebourii D. B. Bader 1963-3-1 25 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  SBBG7360  Lonicera involucrata var. ledebourii M. J. Cody 1938-7-18 Humboldt near Trinidad Comment
  SDSU2917  Lonicera involucrata var. ledebourii Harvey 1938-8-13 2278 Humboldt North of Arcata. Comment
  UCD137387  Lonicera involucrata var. ledebourii Joseph P. Tracy 1943-3-21 17413 Humboldt Alton, along Van Duzan River. 30 Comment
  UC162847  Lotus aboriginus J. P. Tracy 1901-5-12 1078 Humboldt immediate vicinity Eureka 0 Comment
  UC1223439  Lotus corniculatus Joseph P. Tracy 1950-9-22 19345 Humboldt 2 mi s Field's Landing town 6 Comment
  UC1223404  Lotus denticulatus Joseph P. Tracy 1934-6-23 13254 Humboldt near Blue Lake; Mad River 15 Comment
  UC179922  Lotus denticulatus Joseph P. Tracy 1914-6-14 1240 Humboldt near Hydesville; Northern Coast Ranges, Van Duzen River, Yager Creek 30 Comment
  HSC74402  Lotus humistratus Gail Newton 1980-6-28 739 Humboldt Near Mad River Butte. 1536 Comment
  HSC45023  Lotus humistratus R. Sutherland 1978-4-23 19 .23478 Humboldt Road near head of Kinsey Ridge 732 Comment
  UC1197291  Lotus humistratus Joseph P. Tracy 1911-7-4 3283 Humboldt near Willow Creek (at w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  UC202015  Lotus purshianus var. purshianus Joseph P. Tracy 1918-7-28 5092 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC168699  Lotus scoparius J. P. Tracy 1912-7-23 3801 Humboldt 3 mi above mouth of South Fork of Eel River; South Fork of Eel River 30 Comment
  POM276696  Lotus unifoliolatus Lyman Benson 1928-7-11 433 Humboldt Weott Ranger Station. 61 Comment
  RSA12444  Lotus unifoliolatus Carl B. Wolf 1934-7-1 5849 Humboldt Along Eel River and Redwood Highway, 1.2 mi. S of F. K. Lane Grove. 61 Comment
  RSA246782  Lotus unifoliolatus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-7 35225 a Humboldt Samoa Peninsula. 3 Comment
  HSC57342  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-26 10118 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC35860  Lotus unifoliolatus var. unifoliolatus Thomas W. Nelson, James Nelson 1975-8-5 2134 Humboldt Along S spit to Humboldt Bay Comment
  UC1196932  Ludwigia palustris Joseph P. Tracy 1948-7-26 18076 Humboldt mouth of Willow Creek Lack Pond; Northern Coast Ranges, Trinity R. Valley, Lack Pond 152 Comment
  UC314622  Ludwigia palustris Joseph P. Tracy 1926-8-12 7765 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  CAS-BOT-BC342560  Luina hypoleuca Joseph P. Tracy 1917-9-2 4839 Humboldt Northern Coast Ranges. Grouse Mountain 1524 Comment
  CAS-BOT-BC60240  Lunaria annua L. B. Kildale 1930-8-3 10359 Humboldt Chaparall Mountain at Bug Creek. 914 Comment
  HSC6870  Lunaria annua H. S. Logsdon 1964-4-11 19 Humboldt 4 mi. NE of Orick at Boye's Prairie, along Prairie Creek Comment
  RSA89561  Lupinus Philip A. Munz 1954-7-23 19861 Humboldt Road from Dinsmore to Mad River, near Humboldt-Trinity county line. 762 Comment
  UC1223276  Lupinus albicaulis var. shastensis Joseph P. Tracy 1937-8-12 15656 Humboldt Snow Camp 1402 Comment
  UC146919  Lupinus albicaulis var. shastensis Harley P. Chandler June, 1901 1499 Humboldt near Weitchpec (Klamath River); North Coast Ranges, Klamath River 426 Comment
  HSC1872  Lupinus albifrons F. Morrell 1949-5-14 19 Humboldt Weitchpec Comment
  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
  SEINET10452624  Lupinus arboreus Mary Susan Taylor 1990-8-22 Taylor 6070 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  SEINET10544235  Lupinus arboreus Mary Susan Taylor 1990-8-22 Taylor 6070 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  UC503009  Lupinus bicolor Joseph P. Tracy 1932-5-1 9889 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  HSC14788  Lupinus bicolor C. E. Fellows 1965-5-19 87 Humboldt 1.6 mi. S of 7th St. on Hwy. 101 at bridge, E side of Hwy., S side of bridge Comment
  SBBG3622  Lupinus formosus H. and M. Dearing 1939-5-24 3425 Humboldt W of Panther Gap, Dyerville, Honeydew Comment
  HSC31819  Lupinus latifolius Donald Spalinger 1974-4-25 24 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  HSC58680  Lupinus latifolius G. L. Clifton, Griswold 1979-8-2 12238 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC75464  Lupinus latifolius J. O. Sawyer 1980-7-18 3613 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA20858  Lupinus polyphyllus var. grandifolius Carl B. Wolf 1937-6-18 8898 Humboldt 1/2 miles E of Alton. 21 Comment
  UC169346  Lupinus polyphyllus var. pallidipes Joseph P. Tracy 1912-6-9 3693 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC1197251  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1907-6-25 2576 Humboldt mouth Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay region, Elk River 0 Comment
  RSA414417  Lupinus rivularis Bonnie C. Templeton 1964-6-11 10073 Humboldt Between Salyer and Arcata on Highway 299 Comment
  SBBG13907  Lupinus rivularis H. and M. Dearing 1939-6-23 3694 Humboldt 12 mi E of Arcata 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
  RSA87079  Lupinus vallicola subsp. apricus F. W. Peirson 1923-7-10 4221 Humboldt Garberville Comment
  RSA167383  Lupinus variicolor Joseph P. Tracy 1938-6-16 15940 Humboldt Brainards Point, sandy soil along highway between Eureka and Arcata. Comment
  HSC98577  Luzula comosa Cara Witte 2007-5-26 658 Humboldt National Forest 1. 1 mile north of intersection with Forest Service Road 5N10. 1457 Comment
  HSC74203  Luzula parviflora M. A. Baker 1980-7-19 3037 Humboldt Near Bret Hole 1814 Comment
  UC1056033  Luzula parviflora H. E. and S. T. Parks June 1952 22446 Humboldt Bishop Pine Lodge Trinidad, Bishop Pine Lodge Comment
  UC1103676  Luzula parviflora Joseph P. Tracy 1901-4-26 1050 Humboldt Humboldt Hill Northern Coast Region, region about Humboldt Bay 0 Comment
  JEPS67157  Luzula subsessilis Joseph P. Tracy 1918-4-14 4877 Humboldt s end Dows Prairie (Fish's Mill Creek); Northern Coast Ranges, , s end Dows Prairie 60 Comment
  UC2982  Luzula subsessilis Harley P. Chandler May, 1901 1104 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  CHSC96710  Lycopodiella inundata Gordon Leppig 1997-6-19 460 Humboldt Big Lagoon County Park, Big Lagoon Bog. North eastern edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  JEPS371  Lycopodiella inundata Joseph P. Tracy 1928-9-8 8504 Humboldt Big Lagoon Northern Coast Ranges (in peat bog) 6 Comment
  CHSC96729  Lycopodium clavatum Gordon Leppig 2004-2-3 2129 Humboldt The Pacific Lumber Company land. UTM Zone 10 0411778E, 4516248N. 300 Comment
Read comments
Jan 21 2014
  LA205867  Lycopodium clavatum Lawrence L. Kiefer; D. Branscomb 1964-5-20 1435 Humboldt near Trinidad, 1 mi E of Moonstone Beach on Kuntz property 152 Comment
  SEINET200596 Image available Lycopodium inundatum H. E. Parks, JP Tracy 1928-9-8 8504 Humboldt Big Lagoon Comment
  JEPS432  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt 2 mi. s. Field's Landing (near Still's ranch) Comment
  POM87675  Lysichiton americanus Le Roy Abrams, Rimo C. Bacigalupi 8277 Humboldt Big Lagoon. South of Orick. Comment
  RSA0023106  Lythrum Robert F. Thorne, Percy C. Everett 1965-8-8 35251 Humboldt North edge of Eureka, east of Highway 101 5 Comment
  JEPS45971  Lythrum hyssopifolia W. L. Jepson 1902-8-4 2146 Humboldt near Petrolia ( Expedition from Ukiah to the Hupa Indian Reservation) Comment
  HSC15935  Lythrum hyssopifolia W. C. Vinyard, D. E. Anderson 1961-10-12 Humboldt Humboldt State College Campus. Comment
  UC127612  Madia exigua Harley P. Chandler June, 1901 1330 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC166085  Madia exigua Joseph P. Tracy 1911-7-5 3303 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 182 Comment
  HSC71169  Madia gracilis Thomas W. Nelson 1977-5-30 3415 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  HSC99542  Madia gracilis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 207 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC35609  Madia gracilis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2021 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  CAS-BOT-BC343595  Madia sativa Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CHSC69499  Madia sativa Vernon Oswald; Lowell Ahart 1997-9-4 8854 Humboldt Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. 0 Comment
  CAS-BOT-BC343592  Madia sativa J. Clausen 1932-9-19 692 Humboldt Weott Comment
  RSA25705  Mahonia nervosa C. B. Wolf 1941-7-27 11085 Humboldt North Coast Range Mts., Blue Lake to Willow Creek Rd. (U.S. #299) 2 mi. east of n. fk. of Mad River. 152 Comment
  HSC15590  Maianthemum dilatatum J. F. Knezevich 1968-5-23 458 Humboldt N of Trinidad at Big Lagoon 0 Comment
  RSA246767  Maianthemum dilatatum Robert F. Thorne, Percy C. Everett 1965-8-7 35178 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  HSC41942  Maianthemum racemosum subsp. amplexicaule Richard G. Runyon 1977-4-23 9 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC100563  Maianthemum racemosum subsp. amplexicaule Carl C. Marshall Apr 1886 128 Humboldt Damp woods. Comment
  CHSC40212  Maianthemum stellatum L. P. Janeway 1984-5-13 776 Humboldt Along the Kneeland/Bridgeville Road ca 15 mi east of the Kneeland post office just past Lone Star Junction and near Lone Star Creek. 609 Comment
  HSC98152  Maianthemum stellatum T. W. Beck 1963-4-13 19 Humboldt Camp Bauer, Korbel, near Mad River Comment
  HSC98154  Maianthemum stellatum Jack Rockwell 1962-4-29 38 Humboldt E bank of Redwood Creek, near Hwy. 299 549 Comment
  CAS-BOT-BC512773  Maianthemum stellatum D. Baxter; S. Boren; C. Williams 1994-5-6 47 Humboldt West side of Titlow Road 0.35 miles south of Highway 299 853 Comment
  HSC45240  Maianthemum stellatum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3509 Humboldt Alder Springs 1524 Comment
  CAS-BOT-BC347411  Malacothrix floccifera Joseph P. Tracy 1911-7-4 3278 Humboldt Northern Coast Ranges. Along Willow Creek. (Tributary of Trinity River, Humboldt County) near its mouth 152 Comment
  UC57530  Malus fusca Miss E. E. Tracy Nov 1901 Humboldt Eureka Comment
Read comments
Jun 17 2020
  UC902195  Malva nicaeensis Joseph P. Tracy 1946-11-10 17662 Humboldt Trinidad 3 Comment
  HSC6013  Matricaria discoidea V. G. Vieira 1963-5-2 40 Humboldt Butler Valley Ranch Comment
  UC303179  Medicago arabica Joseph P. Tracy 1925-5-31 7051 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UCD107771  Medicago lupulina W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  HSC14975  Medicago polymorpha S. R. Johnson 1965-3-26 18 Humboldt 1 mi. S of Luffenholtz Beach Comment
  SEINET202035  Melica aristata Joseph P. Tracy 1948-8-10 18157 Humboldt Trinity summit. On ridge 2 mi. east of Grove's Prairie. Comment
  BLMAR49  Melica californica Brad Barr June, 1982 49 Humboldt King range, Spanish ridge west facing slope Comment
  SEINET200335 Image available Melica californica var. nevadensis J. P. Tracy 1927-5-14 7999 Humboldt Trinity River Valley near the S Fork 183 Comment
  UC1103761  Melica fugax Joseph P. Tracy 1913-6-17 4193 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  CAS-BOT-BC281326  Melica harfordii Harley P. Chandler 1901-6-1 1477 Humboldt North Coast Ranges. Klamath River 365 Comment
  CAS-BOT-BC281327  Melica harfordii Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  UC34139  Melica spectabilis Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5827 Humboldt Trinity Summit Comment
  UCD88618  Melica subulata August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road, Redwood Highway, north of Garberville. Comment
  UCD88641  Melica subulata A. H. Murphy 1950-5-5 s.n. Humboldt Bald Hills Rd., about 3 mi. east Orich. Comment
  HSC15006  Melilotus albus S. R. Johnson 1965-3-28 28 Humboldt 1/2 mi. N of Luffenholtz Beach Comment
  HSC26919  Melilotus albus Brad Klipfel 1973-7-30 218 Humboldt Samoa Rd., near Mad River Slough Comment
  SEINET200815  Mentzelia dispersa Joseph P. Tracy 1908-7-30 2843 Humboldt Northwest slope of Buck Mountain 1219 Comment
  UC166030  Mentzelia dispersa Joseph P. Tracy 1908-6 2843 Humboldt n/w slope Buck Mountain; Northern Coast Ranges 1219 Comment
  JEPS80895  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1573 Humboldt Mile 133.12, U. S. Highway 101 Mile 133.12; , U. S. Highway 101 Comment
Read comments
Jul 9 2015
  RSA167437  Micropus californicus Joseph P. Tracy 1947-5-10 17681 Humboldt Near Briceland Comment
  CAS-BOT-BC348373  Micropus californicus var. californicus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC427865  Micropus californicus var. californicus H. E. Parks 1930-5-25 872 Humboldt ridges above Laribee Valley Comment
  UC582430  Microseris borealis Joseph P. Tracy 1936-6-28 15027 Humboldt Bald Mountain; at Lake Prairie. 1066 Comment
  SEINET11601912 Image available Microseris borealis K. L. Chambers 1957-8-31 1225 Humboldt Lake Prairie, on road from Bald Mt. to Show Camp, ca. 9 miles S of Ranger Station. In sphagnum bog SE end of the lake Comment
  CAS-BOT-BC322678  Microseris laciniata Doris K. Kildale 1927-7-17 3750 Humboldt Big Creek 792 Comment
  HSC103080  Microseris nutans Sydney Carothers 2014-6-12 14 Humboldt Six Rivers National Forest, Lassics Botanical Area, north slope Red Lassic 1712 Comment
  SEINET200380  Microsteris gracilis J. P. Tracy 1930-6-21 8789 Humboldt Larrabee Valley 701 Comment
  POM193012  Microsteris gracilis subsp. gracilis H. E. Parks, Joseph P. Tracy 1930-5-25 0795 Humboldt Laribee Valley. 793 Comment
  HSC98611  Microsteris gracilis var. gracilis C. Witte 2007-5-10 15 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1552 Comment
  HSC20681  Mimulus aurantiacus var. aurantiacus J. R. Eichelberger 1964-5-13 87 Humboldt 2 mi. E of entrance to Azalea State Reserve on the N side of Mad River Comment
  HSC102111  Mimulus breweri M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1014 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC147910  Mimulus breweri Joseph P. Tracy 1908-6 2844 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  RSA135338  Mimulus dentatus Volney Rattan 1882-06 s.n. Humboldt Humboldt Comment
  HSC20711  Mimulus dentatus P. Markle 1962-5-16 34 Humboldt Along road to City of Arcata reservoir Comment
  HSC45656  Mimulus guttatus Diane L. Reed 1978-4-22 24 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  UC168959  Mimulus guttatus Harley P. Chandler 1901-6-3 1341 Humboldt Campbell Creek North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC20726  Mimulus guttatus H. D. Sumner 1959-7-13 Humboldt Dirt road to Hoopa 305 Comment
  HSC20748  Mimulus guttatus W. A. Heaton 1965-5-17 7 Humboldt 0.5 mi. N of Trinidad St. Park near beach Comment
  POM90457  Mimulus guttatus Joseph P. Tracy 1920-5-18 5329 Humboldt South Fork Eel River, 4 miles above Dyerville. Along Eel River from South Fork to Scotia. 61 Comment
  JEPS10800  Mimulus inodorus Joseph P. Tracy 1935-7-24 14198 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  HSC24378  Mimulus moschatus J. O. Sawyer 1970-6-24 2253 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC75462  Mimulus moschatus J. O. Sawyer 1980-7-18 3611 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC213145  Mimulus nasutus Joseph P. Tracy 1920-5-18 5329 Humboldt 4 mi above Dyerville; Northern Coast Ranges, South Fork Eel River 60 Comment
  UC424834  Mimulus pilosus Milo S. Baker 1927-8-15 2438 f Humboldt near S. Fork Station; Eel R. Comment
  HSC99450  Mimulus primuloides var. primuloides K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 100 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC1565790  Mimulus pulsiferae R. Spellenberg 1990-7-10 10252 Humboldt 1 mi w Horse Mountain (7.5 air mi sw of Willow Creek county road 7K100 4.5 mi s of Berry Summit (on CA Hwy 299), extreme e edge county) 1219 Comment
Read comments
Sep 10 2013
  UC1103540  Minuartia californica Joseph P. Tracy 1920-5-20 6215 Humboldt dry slope towards Lawrence Creek; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC249670  Minuartia cismontana Joseph P. Tracy 1922-4-30 5991 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS51444  Minuartia douglasii Lincoln Constance 1934-5-29 732 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  HSC4056  Minuartia douglasii D. E. Anderson 1965-5-15 3695 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. Comment
  UC1198866  Mitella caulescens Joseph P. Tracy 1942-6-28 17268 Humboldt Murphy Meadows Bald Mountain (edges of bog) 975 Comment
  CAS-BOT-BC433032  Mitella ovalis Lincoln Constance; Reed C. Rollins 1942-5-11 2865 Humboldt California North Coast Ranges. Near summit 8 miles east of Blue Lake. Comment
  CAS-BOT-BC433035  Mitella ovalis C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC100651  Mitella trifida Carl C. Marshall Mar 1886 153 Humboldt Wet shaded places. Comment
  RSA0074180  Modiola caroliniana J. B. Feudge 1923-7-26 85 Humboldt Damp roadside near Ferndale, Calif Comment
  UC1191371  Mollugo verticillata Malcolm A. Nobs, S. Galen Smith 1949-8-11 1339 Humboldt eastern shore of Stone Lagoon; Stone Lagoo Comment
  UC229833  Mollugo verticillata Joseph P. Tracy 1921-10-16 5972 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC56468  Monardella glauca Griswold, Butler 1979-7-12 7278 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC102521  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1508 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC58020  Monardella odoratissima subsp. pallida G. L. Clifton 1979-7-31 11822 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  RSA46838  Monardella odoratissima subsp. pallida Doris K. Kildale 1927-7-22 3814 Humboldt Lasseck s Peaks Comment
  UC1239680  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15429 Humboldt vicinity Garberville 121 Comment
  HSC93840  Montia howellii Claire Golec, Shawn Magnuson 1999-5-12 Humboldt Pacific Lumber Co. land, W side of Van Duzen River, 10 mi. W of Bridgeville Comment
  UC275281  Montia howellii Joseph P. Tracy 1923-6-20 6307 Humboldt White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  HSC33082  Montia parvifolia Thomas W. Nelson, J. D. Ackerman 1974-5-14 1269 Humboldt Baker Beach, 4 mi. S of Trinidad Comment
  HSC55129  Montia parvifolia G. L. Clifton, Terry Griswold 1979-8-1 11934 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  UC162970  Montia parvifolia Joseph P. Tracy 1908-6 2708 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  RSA0056335  Montia sibirica Jim Shevock 1971-5-29 1142 Humboldt Highway 299, Trinity Highway. 457 Comment
  HSC16103  Morella californica J. W. Johnson 1961-11-27 1431 Humboldt Woods along the trail of the Hunt Farm, Samoa Comment
  HSC62915  Morella californica J. M. DiTomaso 1979-4-1 835 Humboldt 3 mi. S of Arcata on Samoa Rd. Comment
  UCD110276  Morella californica Linda M. Barker 1976-6-1 1542 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1103784  Muhlenbergia filiformis Joseph P. Tracy 1931-9-7 9656 Humboldt on sand bar along river Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UCD86712  Muhlenbergia filiformis R. Tofsrud 1948-9-1 s.n. Humboldt Road between Horse Mt. and Grouse Mt. 1371 Comment
  UCD86793  Muhlenbergia mexicana Eleanor Armstrong 1934-1 1148 Humboldt Richardson Grove. Comment
  UCD86802  Muhlenbergia mexicana Joseph P. Tracy 1916-9-5 4774 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  UCD86804  Muhlenbergia mexicana Joseph P. Tracy 1918-9-29 5115 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  UC1239640  Myosotis discolor Joseph P. Tracy 1917-6-17 4815 Humboldt around Humboldt Bay Valley of Salmon Creek; Northern Coast Ranges, Humboldt Bay, Valley of Salmon Creek 15 Comment
  HSC103302  Myosotis latifolia Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-28 3016 Humboldt Above College Cove (north of Trinidad State Beach); along path to beach. 61 Comment
  HSC104051  Myosotis latifolia E. R. Fyer 2015-4-29 32 Humboldt Arcata Community Forest 166 Comment
  SEINET5624170 Image available Myosotis sylvatica R. D. Modafferi 1965-1 s.n. Humboldt 0.5 mile south of Trinidad on old highway 101 305 Comment
  RSA239703  Myrica californica Larry E. DeBuhr 1973-4-23 988 b Humboldt Richardson Grove Redwood State Park. Comment
  SEINET200785 Image available Myriophyllum aquaticum J. P. Tracy 1933-7-20 12810 Humboldt Along Mad River; near Blue Lake. 15 Comment
  UC535743  Narthecium californicum Eleanor Armstrong 1934-1 1176 Humboldt Patricks Point Comment
Read comments
Dec 5 2007
  UCD87899  Nassella lepida A. H. Murphy 1951-5-18 43 Humboldt along road, 2.5 mi. northwest of Petrolia. Comment
  HSC55854  Navarretia divaricata G. L. Clifton, Griswold 1979-7-25 10837 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC45471  Navarretia divaricata Thomas W. Nelson, Jane P. Nelson 1978-7-2 4392 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  UC906681  Navarretia intertexta Joseph P. Tracy 1942-7-18 17288 Humboldt Garberville 152 Comment
  HSC43175  Navarretia squarrosa R. Sutherland 1976-8-13 16 .13876 Humboldt Redwood Creek, Whittemore Grove. 87 Comment
  UC1239755  Nemophila menziesii Joseph P. Tracy 1923-6-3 6251 Humboldt near Dsn McBride Place (Kneeland Prairie); , near Dan McBride Place 762 Comment
  HSC32882  Nemophila parviflora Thomas W. Nelson, James Nelson 1973-5-28 934 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC57706  Nemophila parviflora G. L. Clifton, Griswold 1979-7-25 10955 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC1239687  Nepeta cataria Joseph P. Tracy 1930-8-17 9155 Humboldt Eureka; Northern Coast Ranges 0 Comment
  CAS-BOT-BC60546  Noccaea fendleri subsp. californica Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie. 853 Comment
  HSC57344  Noccaea fendleri subsp. glauca Walter Overton, Marvin Butler 1979-7-26 10027 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  CAS-BOT-BC60566  Noccaea fendleri subsp. glauca Thomas Nelson 1977-6-15 3437 Humboldt North Coast Ranges. Along old road to ski area. 1371 Comment
  HSC97450  Noccaea fendleri subsp. glauca Cara Witte 2007-6-7 216 Humboldt Clear Lake. At end of 6N01B. 3 miles south of Titlow Hill. 1533 Comment
  HSC41308  Notholithocarpus densiflorus Brad Klipfel 1974-7-23 471 Humboldt Horse Mountain Comment
  HSC69696  Nuphar polysepala R. Kalal 1980-6-1 10 Humboldt Essex Pond 15 Comment
  HSC48063  Nuttallanthus texanus Thomas W. Nelson 1978-4-23 3885 Humboldt N of Samoa Comment
  CAS-BOT-BC142296  Oemleria cerasiformis Doris K. Kildale 1926-3-2 1862 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  CAS-BOT-BC142297  Oemleria cerasiformis Doris K. Kildale 1926-3-14 1531 Humboldt Blue Slide on the Van Duzen River Comment
  HSC99107  Oemleria cerasiformis Cara Witte 2008-6-13 721 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  HSC39449  Oenanthe sarmentosa Linda M. Barker 1976-8-24 1686 Humboldt 3 mi. W of Arcata Comment
  UC1222755  Oenanthe sarmentosa Joseph P. Tracy 1950-9-2 19348 Humboldt 2 mi. s. of town Field's Landing (edges of foothills) 6 Comment
  UC1400342  Oenanthe sarmentosa Robert F. Thorne and P. Everett 1965-8-9 35318 Humboldt Clam Beach County Park 3 Comment
  HSC21580  Oenanthe sarmentosa Paul Shields 1955-6-16 Humboldt Humboldt State campus Comment
  UC642332  Oenanthe sarmentosa Joseph P. Tracy 1927-9-25 8376 Humboldt at Eureka Eureka 6 Comment
  UC642334  Oenanthe sarmentosa Joseph P. Tracy 1936-8-17 15149 Humboldt near Field's Landing 6 Comment
  HSC93791  Oenothera wolfii D. K. Imper 1986-6-5 21 Humboldt Adjacent to onramp, Hwy. 101 S , S side of Klamath River, S of Klamath 12 Comment
  HSC102088  Oreostemma alpigenum var. andersonii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 991 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC98561  Orobanche uniflora Cara Witte 2008-6-15 733 Humboldt Coldspring Camp. 1410 Comment
  UC32669  Orthilia secunda Chestnut and Drew 1888-7-21 Humboldt South Fork Mts. Comment
  HSC34279  Orthocarpus imbricatus K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  HSC82415  Orthocarpus imbricatus Thomas W. Nelson 1979-7-11 5031 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  SEINET12270144  Orthocarpus imbricatus J. P. Tracy 1951-1 19562 Humboldt halfway between Snow Camp & Twin Lakes Comment
  HSC99397  Osmorhiza berteroi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 46 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC48758  Osmorhiza berteroi Brad Klipfel 1973-6-16 70 Humboldt Along ridge trail SE of N Trinity Mountain 1829 Comment
  HSC55852  Osmorhiza occidentalis G. L. Clifton, Terry Griswold 1979-7-25 10822 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC1222753  Osmorhiza occidentalis Joseph P. Tracy 1950-6-25 18887 Humboldt Burr Valley Buck Mountain (nw slope of mt.) 1066 Comment
  UC1103419  Oxalis oregana Joseph P. Tracy 1923-5-13 6199 Humboldt near Strong's Station (on Van Duzen River); Northern Coast Ranges 60 Comment
  UC1103427  Oxalis oregana Joseph P. Tracy 1927-5-15 8044 Humboldt Sugar Bowl Mt., on rd between Willow Creek and Hoopa Northern Coast Ranges 457 Comment
  UC166076 Image available Packera bolanderi var. bolanderi Joseph P. Tracy 1911-6-4 3231 Humboldt 5 mi from The Coast (along Little River); Northern Coast Region, Little River 121 Comment
  UC526841  Panicum acuminatum var. acuminatum Joseph P. Tracy 1927-8-7 8313 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  SEINET200584 Image available Parapholis incurva Joeseph P. Tracy 1937-6-5 15328 Humboldt Mouth of Little River 3 Comment
  SDSU10856  Parentucellia viscosa D. F. Howe 1961-8-1 3112 Humboldt 9.0 miles N of Arcata. Comment
  UCD123256  Parentucellia viscosa L. R. Heckard 1960-8-31 1221 Humboldt about 0.5 mile south of Dry lagoon Beach State Park. Comment
  UC526851  Paspalum distichum Joseph P. Tracy 1934-8-14 13581 Humboldt South Fork of Eel River, 1 mi above its mouth 60 Comment
  SEINET3823290 Image available Pastinaca sativa Joseph P. Tracy 1937-10-31 15694 Humboldt Rio Dell 30 Comment
  HSC98075  Paxistima myrsinites Cara Witte 2007-7-12 525 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  HSC98738  Paxistima myrsinites Cara Witte 2008-5-26 662 Humboldt Along Forest Service Road 5N10. 1/2 mile south of intersection with Friday Ridge Road. 1487 Comment
  UC1199003  Paxistima myrsinites Joseph P. Tracy 1913-7-20 4373 Humboldt near summit between Redwood Creek and Three Creeks (above Three Creeks); Northern Coast Ranges 1066 Comment
  HSC20924  Pedicularis densiflora D. E. Anderson 1962-5-1 2202 Humboldt 1 mi. W of Hoopa Comment
  HSC20922  Pedicularis densiflora P. W. Shields May 1955 Humboldt 5 mi. W of Willow Creek Comment
  HSC20928  Pedicularis densiflora R. A. Rasp 1964-4-25 33 Humboldt 2.5 mi. E of Willow Creek off of Hwy. 299 Comment
  HSC60284  Pedicularis densiflora Richard Spjut 1979-3-25 5425 Humboldt Tish Tang Campground, 2 mi. E of Hoopa, above the river Comment
  UC1299764  Pellaea brachyptera Freed W. Hoffman 1949-7-15 3007 Humboldt e slope Mule Slide (Mt Lassic area a little s of Blue Ridge); Mt Lassic area Comment
  CAS-BOT-BC67624  Pellaea mucronata Joseph P. Tracy 1933-6-13 12561 Humboldt Hoopa Mountain - near summit on road west from Hoopa to Bair's. 1066 Comment
  UC1242078  Pellaea mucronata var. mucronata Donald Branscomb April, 1959 Humboldt Bear Butte 868 Comment
  HSC63803  Penstemon anguineus M. A. Baker 1979-6-7 798 Humboldt Along road to Telescope Peak next to stream between Telescope Peak and Snow Mtn. 915 Comment
  UC146234  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1908-6 2804 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS11624  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-24 15512 Humboldt 2 mi se Devil's Hole; Trinity Summit, se of Devil's Hole 1584 Comment
  HSC73689  Penstemon newberryi M. A. Baker 1980-7-24 3203 Humboldt Near Orleans Mtn. 1625 Comment
  UC577416  Penstemon newberryi var. berryi Joseph P. Tracy Jul 16-19 1930 8953 Humboldt South Fork Mountain, open glades along summit near Blake lookout Northern Coast Ranges 1737 Comment
  HSC35941  Penstemon rattanii Thomas W. Nelson, Jane Nelson, James Nelson 1975-7-15 2025 Humboldt Beside Bald Hills Rd., just E of Redwood National Park Comment
  NY641276  Penstemon rattanii H. E. Parks 06 1951 s.n. Humboldt Kneeland, Camaron Hill Comment
  UC1222779  Penstemon rattanii Joseph P. Tracy 1951-6-24 19533 Humboldt Cameron Hill , Cameron Hill (Kneeland Prairie) 762 Comment
  RSA21653  Penstemon rattanii subsp. rattanii Carl B. Wolf 1937-6-14 8808 Humboldt North Coast Range, junction of Eureka - Kneeland Road and Maple Creek Road. 683 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
  UC1197318  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1948-9-5 18167 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1197323  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1941-8-12 17051 Humboldt 2 mi s Fields Landing 6 Comment
  HSC32529  Perideridia kelloggii Thomas W. Nelson 1973-9-3 1133 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1389995  Perideridia oregana T. I. Chuang and R. S. Mitchell 1965-6-30 6002 Humboldt Grouse Mountain; on Clear Lake Rd. Comment
  UC642270  Perideridia parishii subsp. latifolia Joseph P. Tracy 1932-7-14 10543 Humboldt Corral Meadow Trinity Summit 1584 Comment
  CAS-BOT-BC413505  Persicaria amphibia H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  CDA40548  Persicaria wallichii R. Robison 2014-5-5 s.n. Humboldt Adjacent to Trinidad State Beach on Stagecoach Road. 0 Comment
  HSC6051  Petasites frigidus var. palmatus D. E. Anderson 1962-3-18 1942 Humboldt Jacoby Creek Comment
  HSC79486  Petasites frigidus var. palmatus Kenneth Clark 1980-3-23 534 Humboldt South fork of Dead Man's Gulch 38 Comment
  RSA21605  Petasites palmatus C. B. Wolf 1937-9-14 9352 Humboldt North Coast Range, Lord Ellis Road, 7.6 miles east of Blue Lake. 213 Comment
  HSC76574  Phacelia bolanderi Denis Kearns 1981-7-8 142 Humboldt Near Bluff Creek 622 Comment
  UC1199098  Phacelia bolanderi Joseph P. Tracy 1904-7-17 2121 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UCR15551  Phacelia bolanderi George K. Helmkamp 1978-7-15 s.n. Humboldt Prairie Creek Redwoods State Park 305 Comment
  SEINET12335255  Phacelia bolanderi F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -304 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  UC562571  Phacelia egena Joseph P. Tracy 1929-4-28 8550 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC102541  Phacelia hastata subsp. hastata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1527 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC98658  Phacelia heterophylla subsp. virgata Cara Witte 2007-7-3 416 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  RSA170294  Phacelia heterophylla subsp. virgata Lincoln Constance 1934-5-29 731 Humboldt South Fork Eel River, Upper Look Prairie. 366 Comment
  RSA30626  Phacelia heterophylla subsp. virgata Lincoln Constance, R. C. Rollins 1942-5-11 2876 Humboldt Hoopa Valley, 5 miles south of Hoopa. 122 Comment
  HSC24374  Phacelia mutabilis J. O. Sawyer 1970-6-24 2284 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC44535  Phacelia mutabilis Brad Klipfel 1973-7-1 143 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 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
  UC1132414  Phalaris aquatica H. S. Yates 1936-6-23 5857 Humboldt 2 mi se mouth of Mad River; Eureka Quad. Comment
  UC552756  Phalaris arundinacea Joseph P. Tracy 1934-7-27 13492 Humboldt Arcata Bottom; North Coast Ranges, Arcata Bottom 12 Comment
  CAS-BOT-BC76568  Philadelphus lewisii Doris K. Kildale 1926-6-27 2203 Humboldt On road to Larabee Valley from McLellan Mt. 792 Comment
  UC181260  Phleum alpinum Joseph P. Tracy 1913-7-20 4376 1/2 Humboldt ridge between Redwood Creek and Three Creeks (on Berry's ranch); Northern Coast Ranges, btw Redwood Creek and Three Creeks 914 Comment
  HSC55333  Phlox adsurgens Griswold, Butler 1979-7-12 7177 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  SJSU914  Phlox adsurgens J. W. Tilden 1946-6-20 1009 Humboldt Bluff Cr c. 1.5 mi above junction with Klamath R Comment
  UC1541555  Phlox adsurgens W. K. Parks Jul 1933 Humboldt South Fork Comment
  UC615025  Phlox adsurgens Beryl O. Schreiber 1934-6-6 1144 Humboldt 5 mi e Gray's resort (road to Redding); Redwood Creek Comment
  UC1198559  Phlox gracilis Joseph P. Tracy 1932-4-24 9824 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC1541553  Phlox gracilis H. E. Parks, J. P. Tracy 1930-5-25 795 Humboldt Laribee Valley 762 Comment
  HSC18710  Physocarpus capitatus R. E. Thill 1965-5-16 29 Humboldt 1 mi. E of Hwy. 101 on N Bank Rd. Comment
  HSC1354  Picea sitchensis J. W. Johnson 1962-4-29 1295 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  UCD134309  Picea sitchensis Linda M. Barker 1976-4-13 1376 Humboldt Lanphere-Christensen Dunes, coastal forest and dunes 3 miles west of Arcata. Comment
  HSC76293  Pinus attenuata Denis Kearns 1981-7-6 70 Humboldt Near Mosquito Lake 1256 Comment
  JEPS46793  Pinus attenuata W. L. Jepson 1902-7-1 Humboldt trail to Trinity Summit from Hupa Valley Comment
  CAS-BOT-BC78380  Pinus contorta W. R. D. 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC95835  Pinus contorta var. contorta Will Ferrand 2002-4-27 36 Humboldt 300 ft W of intersection of Samoa Blvd. and Lupine Dr. 9 Comment
  HSC31984  Pinus jeffreyi Steve Selva, Roger Jensen 1974-8-19 25 Humboldt Horse Mtn. Ski Area Comment
  HSC99046  Pinus jeffreyi Cara Witte 2008-6-15 754 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36. 1 mile north of intersection with 6N36A. 1428 Comment
  HSC54534  Pinus monticola Overton, Butler 1979-7-23 9483 Humboldt Near Horse Mtn. Creek 1326 Comment
  CAS-BOT-BC79025  Pinus ponderosa Doris K. Kildale 1927-2-20 2900 Humboldt [Lassecks] Lassics Peaks Trail, Cold Spring, Goat Camp 914 Comment
  JEPS64429  Piperia elegans W. L. Jepson 1932-7-25 16399 Humboldt Bull Creek South Fork Eel River Comment
  UC1121030  Pityopus californicus R. Stahelin 1933-7-20 Humboldt Korbel Eureka Quad. (yield Plot #16, se of Riverside Plant) Comment
  UC1239619  Plagiobothrys nothofulvus Joseph P. Tracy 1933-5-20 12243 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges 30 Comment
  OBI20592  Plagiobothrys reticulatus Joseph P. Tracy 1946-5-30 17541 Humboldt Carlotta. By Old Strong's District School House. 5 mi E of town, and at "Riverside Park" 61 Comment
  UC1222204  Plagiobothrys scouleri Joseph P. Tracy 1948-5-31 17987 Humboldt halfway between Garberville and Harris (at Robertson's sheep ranch) 609 Comment
  HSC69871  Plagiobothrys tenellus Thomas W. Nelson 1978-5-28 4093 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  UCD124391  Plantago coronopus Stuart K. Harris 1930-10-14 6982 Humboldt near Palmer Creek, 1 mile west of Fortuna. 15 Comment
  POM161948  Plantago hirtella var. galeottiana Joseph P. Tracy 1921-7-10 5849 Humboldt Big Lagoon. 6 Comment
  HSC26370  Plantago lanceolata T. O. Osborne 1970-9-16 64 Humboldt Trinidad Bay, Prisoner Rock Comment
  RSA246748  Plantago maritima Robert F. Thorne, Percy C. Everett 1965-8-8 35276 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC27019  Platanthera dilatata var. leucostachys Brad Klipfel 1973-8-9 266 Humboldt Big Lagoon County Park Comment
  UC845458  Platanthera hyperborea var. gracilis Milo S. Baker 1926-1 51 -1926 Humboldt South Fork Mountain South Fork Mountain (eastern Humboldt County, Forest Road 4 1/2 mi n highway) Comment
  HSC102048  Platanthera sparsiflora M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 951 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  UC1196418  Platanthera sparsiflora Joseph P. Tracy 1932-7-16 10631 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC91639  Platystemon californicus Tom Craig 1941-6-29 s.n. Humboldt Samoa, near Eureka. Comment
  HSC90238  Platystemon californicus Louise Watson, Jan Meninga Mar 1991 14 Humboldt Near Manilla, Mad River Slough and Dunes, NW edge of parking lot Comment
  HSC16797  Platystemon californicus J. W. Bosworth 1965-4-3 4 Humboldt Samoa sand dunes, 1 mi. SW of Fairhaven Comment
  SEINET5340052  Platystemon californicus J. Tracy 1904-4-24 2020 Humboldt Sand Dunes of ocean beach at Humboldt Bay. Comment
  SEINET780340  Plectritis A. Baker 1980-5-24 1450 Humboldt Comment
  CHSC10124  Plectritis congesta J. W. Johnson 1962-4-19 1273 Humboldt Miller Farm, Samoa Peninsula. Arcata. Comment
  UC552670  Pleuropogon californicus Joseph P. Tracy 1935-5-25 13846 Humboldt Fort Seward 106 Comment
  RSA256328  Pleuropogon refractus J. R. Reeder, C. G. Reeder 1973-5-26 6184 Humboldt 13 miles S of Klamath along Hwy 101 in Big Tree State Park 61 Comment
  UCD90107  Pleuropogon refractus Joseph P. Tracy 1939-7-9 16334 Humboldt Snow Camp. Comment
  RSA44528  Poa bulbosa Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  HSC10705  Poa douglasii S. J. Moore 1965-5-9 48 Humboldt Dry Lagoon State Park, near entrance. Comment
  UC1132658  Poa douglasii H. S. Yates 1936-6-18 5726 Humboldt near mouth Little River; Eureka Quadrangle Comment
  SEINET10659238  Poa douglasii Huron H. Smith 1911-1 Smith 3852 Humboldt Comment
  RSA10047  Poa howellii Joseph P. Tracy 1929-7-4 8619 Humboldt French Camp Ridge 1067 Comment
  UC34126  Poa howellii Joseph Burtt Davy Jun 8 1899-Jun 1 1901 5360 Humboldt Harris Comment
  HSC70247  Poa pratensis M. A. Baker 1980-6-8 1916 Humboldt Near Buck Flat. 1554 Comment
  UC525615  Poa pratensis subsp. pratensis Joseph P. Tracy 1926-5-9 7469 1/2 Humboldt valley s of South Yager Creek; Northern Coast Ranges 762 Comment
  UCD90874  Poa secunda subsp. secunda J. B. Davy; W. C. Blasdale 1899-6-19 5658 Humboldt Hoopa Summit. Comment
  UCD91735  Poa secunda subsp. secunda A. H. Murphy 1951-4-9 s.n. Humboldt Ft. Baker Ranch along road between Iron Gate and Dairy Ridge. 304 Comment
  HSC99415  Poa trivialis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 64 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
  UC1145116  Poa trivialis Joseph P. Tracy 1943-7-18 17435 Humboldt Big Lagoon 9 Comment
  CAS-BOT-BC244207  Poa unilateralis Harley P. Chandler 1901-5-1 1140 Humboldt Humboldt Bay 3 Comment
  UC187225  Poa unilateralis Joseph P. Tracy 1910-4-24 3124 Humboldt Ocean Beach; Northern Coast Region, Humboldt Bay Comment
  CAS-BOT-BC232888  Polemonium carneum Carl B. Wolf 1937-8-10 9093 Humboldt Big Lagoon, S side. W of Redwood Highway 6 Comment
  JEPS69886  Polemonium carneum Joseph P. Tracy 1924-5-25 6682 Humboldt Big Lagoon 3 Comment
  UC17437  Polygala californica Harley P. Chandler June 1901 1328 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC570808  Polygala cornuta var. cornuta H. L. Mason 1932-7-21 7110 Humboldt on road from Arcata to Weaverville; east slope of Southfork Mountains Comment
  HSC12591  Polygonum aviculare C. Kline 1970-11-9 64 Humboldt .5 mi. N of Bayside, Bayside Rd. Comment
  UC1713695  Polygonum davisiae Joseph P. Tracy 1919-9-22 5261 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  SEINET3405782 Image available Polygonum douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt Trinity Summit; Gravelly slopes on Box Camp trail Comment
  UC1116239  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1947-8-24 17887 B Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC109186  Polygonum paronychia Ira L. Wiggins 1930-7-11 4685 Humboldt Near Samoa. Comment
  HSC49614  Polygonum paronychia R. York 1979-5-18 296 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  HSC59461  Polygonum paronychia M. A. Ericksen 1979-5-18 296 Humboldt Samoa Dunes, .5 mi. S of Simpson Timber Company plant entrance Comment
  POM232027  Polygonum paronychia I. L. Wiggins 1930-7-11 4685 Humboldt Near Samoa Comment
  CAS-BOT-BC419956  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1933-7-25 12868 Humboldt Grouse Mountain 1524 Comment
  UC672951  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1930-7-17 9010 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CDA2921  Polygonum polystachyum T. C. Fuller 1961-9-27 7042 Humboldt Highway 101 2.5 miles north of Trinidad. 0 Comment
  CAS-BOT-BC421009  Polygonum spergulariiforme Doris Kildale 1931-6-6 10872 Humboldt Gans Prairie, Orick - Weitchpec road Comment
  UCD100684  Polygonum spergulariiforme J. M. Tucker 1948-9-3 1855 Humboldt Ridge between Horse and Grouse Mountains. Comment
  SEINET3873592  Polypodium californicum Jerry Parker 1968-10-25 186 Humboldt Stable dunes south of Widow White Creek.; 0 Comment
  UC57306  Polypodium calirhiza J. P. Tracy 1901-1-27 985 Humboldt sand hill of Ocean Beach at Samoa (opposite Eureka) Comment
  CAS-BOT-BC76840  Polypodium glycyrrhiza Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  RSA273372  Polypodium glycyrrhiza Thomas W. Nelson, Jane P. Nelson 1976-2-21 2250 Humboldt Tish-Tang Campground. Comment
  SEINET200789 Image available Polypodium glycyrrhiza Joseph P. Tracy 1931-3-26 9294 Humboldt Blue Slide, on Van Duzen River Comment
  CAS-BOT-BC72084  Polypodium scouleri W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CHSC27876  Polypodium scouleri Sam M. Grossberg 1978-3-11 1 Humboldt Sequoia City Park, Eureka, ca. 100 yds s of U Street entrance. 22 Comment
  HSC1116  Polypodium scouleri Gene S. Van Horn 1962-5-26 33 Humboldt 250 E 17th St., Arcata 61 Comment
  CAS-BOT-BC233070  Polypogon interruptus Kenneth Clark 1980-5-10 645 Humboldt Shelter Cove, On coastal bluffs of Point Delgada Comment
  UC526772  Polypogon interruptus Joseph P. Tracy 1927-7-16 8259 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  JEPS72929  Polypogon monspeliensis Lincoln Constance 1934-5-26 672 Humboldt sand and gravel bar of South Fork of Eel River s end Dyerville Bridge (Bull Creek Region); South Fork Eel River, Bull Creek Region 45 Comment
  UC50475  Polypogon monspeliensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5514 Humboldt near Pepperwood; near Pepperwood Comment
  UCD91351  Polypogon monspeliensis Kathleen Moore 1964-7-14 12 Humboldt Kneeland at the Star Barn. 762 Comment
  UC1440055  Polystichum Danin & H. G. Baker 1960-9-2 663 Humboldt Bull Creek-Honeydew Rd. Comment
  HSC46091  Polystichum imbricans J. P. Smith, Steve Selva 1970-6-14 3814 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC73875  Polystichum imbricans M. Baker 1980-7-15 2952 Humboldt Near Whiting Ridge 1341 Comment
  HSC47991  Polystichum imbricans Brad Klipfel 1974-6-17 681 Humboldt Horse Mtn. Comment
  HSC98734  Polystichum imbricans subsp. imbricans Cara Witte 2007-7-25 583 Humboldt Forest Service Road 5N10. Approximately 1/2 mile north of intersection with Forest Service Road 5N10C. 1270 Comment
  UC338401  Polystichum imbricans subsp. imbricans unknown 1904-7-13 Humboldt along stage rd Comment
  UC906748  Polystichum imbricans subsp. imbricans Joseph P. Tracy 1947-7-9 17842 Humboldt Horse Mt. 1432 Comment
  HSC99526  Polystichum lonchitis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 190 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1372 Comment
Read comments
May 14 2014
  RSA693276  Polystichum lonchitis Anstruther Davidson 1923-8-10 17060 Humboldt Near Bridgeville Comment
  CHSC23905  Polystichum munitum Mark Johnson 1974-4-28 28 Humboldt Adjacent to Lady Bird Johnson Grove, 5 mi ne of Orick. 228 Comment
  HSC74743  Polystichum munitum Gail Newton 1981-8-6 2386 Humboldt Near Bug Creek 1125 Comment
  SBBG307  Polystichum munitum H. and M. Dearing 1939-5-27 3455 Humboldt Patrick's Point Comment
  POM305537  Polystichum munitum Henry J. Ramsey, Henry J. Ramsey 1939-10-13 834 Humboldt Highway 299 in mountains. Comment
  SEINET6840758  Polystichum munitum R. A. Evers 1962-9-1 75334 Humboldt Patrick Point State Park. Comment
  HSC98644  Populus trichocarpa Cara Witte 2007-7-26 598 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1366 Comment
  UC297845  Potamogeton foliosus H. E. Parks 1923-5-30 1758 Humboldt Eureka Comment
  UC672876  Potamogeton pectinatus Joseph P. Tracy 1934-7-20 13462 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC453908  Potamogeton pectinatus Henry M. Pollard 1946-8-13 s.n. Humboldt Near Harley place, Orleans region Comment
  HSC100632  Potentilla anserina Carl C. Marshall Mar 1886 72 Humboldt Vicinity of Bay. Comment
  HSC44619  Potentilla anserina subsp. pacifica Laura Witherspoon 1977-5-25 Humboldt Manila Comment
  HSC48754  Potentilla gracilis var. fastigiata Brad Klipfel 1973-6-10 55 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56432  Potentilla gracilis var. fastigiata Griswold, Butler 1979-7-12 7144 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  RSA135410  Potentilla palustris Volney Rattan 1883-6-4 s.n. Humboldt 3 miles from Eureka Comment
  HSC49151  Proboscidea louisianica Garry Markegard 1979-9-11 Humboldt Along Bald Hills Rd. ca. 400 ft. N of the Rd. between Williams Ridge and Cagle Ridge at old stage stop ca. 12 mi. from Jct. with State Route 101, Simpson property, Mr. Emmss caretaker, adjacent to vegetable garden. Comment
  CAS-BOT-BC517512  Prosartes smithii Alice Eastwood 1907-4-22 29 Humboldt Part Trinidad Comment
  UCSB665  Prosartes smithii Phillips, Priscilla 1958-6-10 Humboldt On old road running between Trinidad and Colonial Inn, 1 mile south of the intersection of old road and 101 Comment
  HSC99544  Prunella vulgaris var. lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 209 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC153994  Prunella vulgaris var. lanceolata Joseph P. Tracy 1908-6 2776 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA245006  Prunella vulgaris var. lanceolata William J. Ferlatte 1966-6-15 2093 Humboldt Near Bridgeville Comment
  UC1321003  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-21 636 Humboldt s Weott (Burlington Residence Area and Campground, Humboldt Redwoods State Park); Humboldt Redwoods State Park Comment
  UC1321005  Prunella vulgaris var. vulgaris Andrew P. Nelson 1960-1 629 -2 Humboldt Comment
  BLMAR465  Prunus emarginata Jennifer Anthony-Wheeler 2004-11-8 465 Humboldt Titlow Hill, growing along Titlow Hill road off Hwy 299 914 Comment
  RSA43863  Prunus emarginata H. M. Pollard 1947-9-1 s.n. Humboldt Near summit of Somes Peak, Orleans region. 1524 Comment
  UC183605  Prunus emarginata Joseph P. Tracy 1912-7-31 3922 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain Comment
  CDA3914  Prunus laurocerasus Gordon Leppig 2000-4-12 1291 Humboldt Behind Humboldt University, west of Fern Lake, Arcata. Comment
  UC249636  Prunus virginiana var. demissa Joseph P. Tracy 1922-6-18 6096 Humboldt Head of South Yager Creek South Yager Creek; Northern Coast Ranges, South Yager Creek 762 Comment
  UC492198  Prunus virginiana var. demissa Joseph P. Tracy 1927-5-14 8027 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  RSA46729  Prunus virginiana var. melanocarpa Doris K. Kildale 1937-8-10 15351 Humboldt High Divide Comment
Read comments
May 5 2014
  JEPS20480  Pseudognaphalium californicum Joseph P. Tracy 1937-7-11 15415 Humboldt vicinity of Garberville 121 Comment
  CAS-BOT-BC357603  Pseudognaphalium stramineum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC40252  Pseudognaphalium stramineum Linda M. Barker 1976-8-24 1685 Humboldt 3 mi. W of Arcata Comment
  HSC29945  Pseudostellaria jamesiana D. H. Norris, J. Van Horn, D. E. Jackson 1973-6-19 193 Humboldt Humboldt National Forest, Santa Rosa Mtn. Range, Buffalo Canyon 1524 Comment
Read comments
Apr 11 2012
  BLMAR148  Pseudotsuga menziesii Donald Hazlett 1994-6-9 148 Humboldt King range, E-facing slope off hourse mountain ridge 609 Comment
  RSA134611  Pseudotsuga menziesii P. C. Everett, B. K. Balls 1959-10-25 23971 Humboldt 7 mi SW from Ferndale along Old Coast Road to Capetown. 564 Comment
  JEPS48426  Pseudotsuga menziesii var. menziesii W. L. Jepson 1936-8-7 17858 Humboldt Butte Creek (upper) Bear Buttes, Butte Creek Comment
  UC709421  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1941-4-11 16859 Humboldt Willow Creek Canyon; along Trinity Highway 609 Comment
  UC915719  Pseudotsuga menziesii var. menziesii W. L. Jepson June 1903 48 Humboldt Briceland Comment
  UC1222913  Psilocarphus tenellus Joseph P. Tracy 1946-6-23 17597 Humboldt se end Kneeland Prairie (near the old Dan McBride place) 762 Comment
  HSC1163  Pteridium aquilinum var. pubescens R. I. Bonn 1965-5-9 41 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC54568  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-7-24 9596 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC55030  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-7-31 11466 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC41289  Pteridium aquilinum var. pubescens Brad Klipfel 1974-7-27 483 Humboldt Horse Mtn. in draw to the N of the towers Comment
  HSC98648  Pterospora andromedea Cara Witte 2007-8-8 624 Humboldt Intersection of National Forest 1 and Forest Service Road 6N38. 1409 Comment
  CAS-BOT-BC460603  Pyrola aphylla Doris K. Kildale 1926-6-17 2166 Humboldt Kneeland Prairie 762 Comment
  UC153970  Pyrola asarifolia J. P. Tracy 1901-6-30 1191 Humboldt Immediate Vicinity of Eureka 0 Comment
  HSC44342  Pyrola dentata Brad Klipfel 1975-6-17 687 Humboldt Horse Mtn. Comment
  UC562453  Pyrola picta Joseph P. Tracy 1935-7-30 14356 Humboldt Salmon Summit 1767 Comment
  HSC8106  Quercus chrysolepis D. E. Anderson 1961-9-30 1840 Humboldt Blue Lake 793 Comment
  HSC35716  Quercus garryana Thomas W. Nelson 1975-10-12 2233 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC1196523  Quercus garryana Joseph P. Tracy 1920-10-9 5402 Humboldt Bald Mountain, at Hungry Hill Northern Coast Ranges 762 Comment
  UC54686  Quercus garryana Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5854 Humboldt Trinity Summit, at lake near the top North Coast Ranges Comment
  CAS-BOT-BC105160  Quercus kelloggii H. E. McMinn 1922-8-5 330 Humboldt Mad River Comment
  UC54717  Quercus kelloggii Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  UC1196512  Quercus sadleriana Joseph P. Tracy 1935-7-23 14155 Humboldt lower end of Brett Hole Trinity Summit, Brett Hole 1584 Comment
  UC213004  Quercus sadleriana Joseph P. Tracy 1919-9-19 5259 Humboldt Trinity Summit Northern Coast Ranges 1676 Comment
  HSC44344  Quercus vacciniifolia Brad Klipfel 1975-6-17 692 Humboldt Horse Mtn. Comment
  HSC76363  Quercus vacciniifolia Denis Kearns 1981-6-24 18 Humboldt Near Cedar Camp 1219 Comment
  HSC98847  Quercus vacciniifolia Cara Witte 2008-7-11 867 Humboldt Horse Mountain Botanical Area. National Forest 1. 1/2 mile west of intersection with Forest Service Roads 6N38 and 6N36. 1426 Comment
  CAS-BOT-BC378854  Ranunculus californicus var. californicus Doris K. Kildale 1927-3-20 2917 Humboldt Philipsville, south fork of Eel River Comment
  HSC45061  Ranunculus californicus var. californicus R. Sutherland 1978-4-23 6 .23478 Humboldt 718 Comment
  UC9434  Ranunculus flammula Harley P. Chandler May, 1901 1130 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC1196217  Ranunculus occidentalis Joseph P. Tracy 1899-3-15 4 1/2 Humboldt Eureka; in garden Comment
  UC1537332  Ranunculus occidentalis Gordon H. True Jr. 1936-5-11 466 Humboldt 12 mi w Miranda (e slope of ridge); Elk Ridge 457 Comment
  HSC73606  Ranunculus occidentalis var. occidentalis M. A. Baker 1980-7-22 3118 Humboldt Near Grogan Hole. 1676 Comment
  HSC48638  Ranunculus occidentalis var. occidentalis Mark Flippo 1978-5-20 78 Humboldt USFS Rd. 8N10 Comment
  HSC55293  Ranunculus orthorhynchus Griswold, Butler 1979-7-10 6274 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC75828  Ranunculus orthorhynchus var. bloomeri Bill Copeland 1980-7-2 312 Humboldt Near Snow Camp Mtn. 1311 Comment
  UC1196249  Ranunculus orthorhynchus var. orthorhynchus J. P. Tracy 1901-6-10 1123 Humboldt Immediate vicinity of Eureka 0 Comment
  UC249694  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1921-4-24 5477 Humboldt Englewood Prairie Northern Coast Ranges, Eel River (along river from South Fork to Scotia) 60 Comment
  UC1116204  Ranunculus parviflorus Joseph P. Tracy 1948-6-13 18026 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  RSA97039  Ranunculus parviflorus J. T. Howell 1954-4-25 29153 Humboldt Garden weed, Arcata Comment
  UC1196265  Ranunculus repens Joseph P. Tracy 1933-7-20 12803 Humboldt Arcata Bottom North Coast Ranges 15 Comment
  HSC89520  Raphanus sativus M. Roantree 1985-6-11 86 Humboldt E side of Trinidad Head, near entrance Comment
  RSA245205  Raphanus sativus Thomas W. Nelson 1971-4-12 374 Humboldt At the junction of the Hookton Rd and Copenhagen Rd. Comment
  RSA40887  Rhamnus californica subsp. occidentalis Carl B. Wolf 1944-10-28 11476 Humboldt Sacramento River Canyon, 0.4 ile below mouth of Mears Creek. 457 Comment
  LA207876  Rhamnus purshiana Doris K. Kildale; 1929-6-25 8394 Humboldt Eureka, Pine's Pasture Comment
  UC165824  Rhamnus purshiana Joseph P. Tracy 1908-6 2848 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC175733  Rhamnus purshiana Joseph P. Tracy 1912-9-1 3983 Humboldt Eureka Northern Coast Region 0 Comment
  UC592852  Rhamnus purshiana Doris Kildale Gillespie 1932-9-1 Humboldt 1 block n Henderson St. (on S Street, Eureka); Eureka 30 Comment
Read comments
Mar 1 2013
  UC630477  Rhamnus purshiana H. E. and S. T. Parks 1935-5-1 5541 Humboldt Spruce Cove Trinidad 64 Comment
  JEPS58777  Rhododendron macrophyllum Mr. and Mrs. Geo. B. Parrish 1930-5-21 Humboldt Trinidad Comment
  RSA257021  Rhododendron macrophyllum Gary D. Wallace, Larry E. DeBuhr, G. Ansley Wallace 1972-5-22 1070 Humboldt Northwest of Orick along southern boundary of Prairie Ck, Redwoods St. Pk. along Davison Rd. toward Gold Bluff Beach. Comment
  UC614839  Rhododendron macrophyllum Beryl O. Schreiber 1934-6-5 1136 Humboldt 20 mi e of Blue Lake (road to Redding) Comment
  HSC74570  Rhododendron occidentale var. paludosum M. A. Baker 1980-5-17 1238 Humboldt Near Le Perron Peak 1066 Comment
  HSC53831  Ribes binominatum Griswold, Butler 1979-7-10 6279 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC20290  Ribes divaricatum W. R. Rogers 1966-5-1 243 Humboldt Azella State Reserve Comment
  CAS-BOT-BC108907  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1939-4-27 16227 Humboldt Mouth of Little River. 6 Comment
  CAS-BOT-BC108910  Ribes divaricatum var. pubiflorum Doris K. Kildale 1927-6-28 3607 Humboldt Lower Mad River near Covered Bridge on Redwood Highway. Comment
  UC492206  Ribes inerme var. klamathense Joseph P. Tracy 1927-5-15 8039 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1198916  Ribes lacustre Joseph P. Tracy 1942-6-23 17250 Humboldt near Box Camp; Trinity Summit 1524 Comment
  JEPS49356  Ribes lobbii W. L. Jepson 1902-7-16 2038 Humboldt Trinity Summit 2133 Comment
  UC1198924  Ribes lobbii Joseph P. Tracy 1942-6-23 17249 Humboldt near Box Camp; Trinity Summit 1584 Comment
  UC902101  Ribes lobbii Joseph P. Tracy 1942-6-23 17234 Humboldt near Box Camp; Trinity Summit 1524 Comment
  RSA0021132  Ribes lobbii Lincoln Constance, R. C. Rollins 1942-5-11 2864 Humboldt Near summit 8 miles east of Blue Lake. Comment
  RSA0021640  Ribes malvaceum E. K. Balls, P. C. Everett 1953-10-11 18627 Humboldt S. boundary Eel River Lodge, 4.3 mi. N of Richardson s Grove, Highway 101. 152 Comment
  HSC57640  Ribes marshallii G. L. Clifton, Griswold 1979-7-25 10804 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  JEPS79966  Ribes marshallii Joseph P. Tracy 1932-7-15 10592 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  JEPS49219  Ribes menziesii Jos. P. Tracy 1912-3-31 3568 Humboldt Blue Lake 3 Comment
  JEPS49220  Ribes menziesii Jos. P. Tracy 1921-3-13 5421 Humboldt near Alton (Drake's Hill) 30 Comment
  HSC103114  Ribes nevadense M. Mesler, Jen Kalt 2010-8-6 839 Humboldt Trail to Trinity Summit from Water Dog Lakes (6E08, Horse Ridge National Recreation Trail) 1833 Comment
  BLMAR142  Ribes roezlii var. amictum Donald Hazlett 1994-6-7 142 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC198902  Ribes roezlii var. cruentum Kenneth Clark 1980-3-27 55 Humboldt North fork Dead Man's Gulch, Shelter Cove 82 Comment
  HSC55321  Ribes roezlii var. cruentum Griswold, Butler 1979-7-10 7119 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  UC667062  Ribes roezlii var. cruentum Joseph P. Tracy 1933-7-11 12695 Humboldt Grouse Mountain 1524 Comment
  UC667068  Ribes roezlii var. cruentum Joseph P. Tracy 1937-3-27 15240 Humboldt near Blue Lake; Mad River 15 Comment
  CAS-BOT-BC212521  Ribes sanguineum Harley P. Chandler 1901-6-1 1287 Humboldt Hupa Indian Reservation 1097 Comment
  HSC22511  Ribes sanguineum D. E. Anderson 1964-4-24 3540 Humboldt 0.5 mi. from junction of Hwy. 299 along Titlow Hill Rd. Comment
  HSC40117  Ribes sanguineum Dan O'Brien 1962-5-19 Humboldt 4 1/2 mi. E on Fickle Hill Rd. Comment
  HSC57037  Ribes sanguineum Overton, Butler 1979-7-24 9674 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1222368  Ribes sanguineum Joseph P. Tracy 1950-5-6 18642 Humboldt near head Willow Creek Canyon (along Trinity Highway) Comment
  RSA0019527  Ribes sanguineum John H. Thomas 1949-6-13 914 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. East of town of Orleans. 1372 Comment
  SEINET13942795 Image available Ribes sanguineum Michalski, Hopson & Raum 1987-1 69 Humboldt T6N, R4E, Sec 19; Titlow Hill Rd, 0.5 mile from 299; 24 miles east of Blue Lake; Lord-Ellis Summit, 2800 ft. 853 Comment
  HSC49909  Ribes sanguineum var. glutinosum Maralyn O'Meara 1973-2-9 125 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  HSC89424  Ribes sanguineum var. glutinosum P. A. Daly 1984-5-8 7 Humboldt Trinidad Head. 61 Comment
  HSC90232  Ribes sanguineum var. glutinosum L. Watson, J. Meninga Mar 1991 9 Humboldt Near Manilla, Mad River Slough and Dunes, 300yds W of parking lot, W of trail Comment
  HSC103221  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-5-2 14 Humboldt Off 299 between Big Bar and Burnt Ranch. Up Forest Route 4 approx. 8 miles. At the turnoff towards Ironside Mountain. 1057 Comment
  HSC47612  Rigiopappus leptocladus J. P. Smith 1977-4-23 9027 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC195067  Rigiopappus leptocladus Joseph P. Tracy 1916-6-19 4738 Humboldt near Alder Point; Northern Coast Ranges, Cahto Creek 152 Comment
  SEINET10638531 Image available Romanzoffia tracyi Joseph P. Tracy, Harold E. Parks 1933-5-9 Tracy 11008 Humboldt Wet slide on bluff near ocean. Vicinity of Trinidad. 15 Comment
  UC552285  Rorippa curvisiliqua Joseph P. Tracy 1934-7-30 13500 Humboldt along coast in front of s end Stone Lagoon (Dry Lagoon); along coast in front of s end Stone Lagoon 3 Comment
  UC205457  Rorippa nasturtium-aquaticum Joseph P. Tracy 1919-5-31 5169 Humboldt along Willow Creek (tributary of Trinity River) near its mouth Northern Coast Ranges, along Willow Creek 152 Comment
  CAS-BOT-BC147434  Rosa californica Doris Kildale 1931-6-6 10869 Humboldt Gans Prairie, Orick - Weitchpec Road Comment
  HSC19619  Rosa canina D. E. Anderson 1965-5-15 3700 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. 198 Comment
  CAS-BOT-BC146479  Rosa gymnocarpa Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC146484  Rosa gymnocarpa Joseph P. Tracy 1936-8-7 15107 Humboldt Trinity Summit, 2 miles southeast of Devil's Hole 1584 Comment
  CAS-BOT-BC146490  Rosa gymnocarpa Carl B. Wolf 1927-8-30 1232 Humboldt 2 mi. so. of Petrolia on Matole River near point where road crosses river Comment
  CAS-BOT-BC146528  Rosa gymnocarpa M. S. Jussel 1931-5-2 67 Humboldt 20 miles north of Garberville Comment
  HSC32264  Rosa gymnocarpa J. O. Sawyer 1970-6-24 2249 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC58243  Rosa gymnocarpa G. L. Clifton, Griswold 1979-8-2 12413 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC72825  Rosa gymnocarpa M. A. Baker 1980-6-26 2437 Humboldt Near Sims Creek 393 Comment
  SBBG3082  Rosa nutkana H. and M. Dearing 1939-5-26 3448 Humboldt Bishop Pine Lodge, N of Trinidad Comment
  UC303026  Rosa nutkana var. nutkana Joseph P. Tracy 1923-6-22 6345 Humboldt Angels Ranch Bald Mt.; Northern Coast Ranges, Bald Mt. 457 Comment
  CHSC31292  Rosa pinetorum Mark Stopher 1980-7-11 115 Humboldt Along Elk River near Hwy 101 bridge. Comment
  CAS-BOT-BC148340  Rosa pisocarpa Alice Eastwood; John Thomas Howell 1937-6-23 4763 Humboldt Dinsmore's Comment
  HSC19650  Rubus leucodermis Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  HSC57115  Rubus leucodermis Overton, Butler 1979-7-25 9858 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  CAS-BOT-BC147239  Rubus parviflorus Joseph P. Tracy 1932-7-15 10576 Humboldt Near Corral Prairie 1524 Comment
  SEINET10771638  Rubus parviflorus Benjamin W. van Ee, Melissa A. van Ee; Pieter J. van Ee; Juliana M. van Ee 2014-1-1 van Ee 1835 Humboldt By pull-out just W of Hwy 101 on the E shore of Big Lagoon, N of Big Lagoon County Park. 5 Comment
  UC492166  Rubus parviflorus Joseph P. Tracy 1932-7-15 10576 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit, nr Corral Prairie 1524 Comment
  UCD20671  Rubus parviflorus A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Hwy 101 reroute, near Redwood Park. Comment
  UCR275117  Rubus parviflorus Charity A. Hartshorn 2016-5-14 29 Humboldt Arcata Community Forest 244 Comment
  UC492170  Rubus praecox H. E. Parks and Joseph P. Tracy 1932-8-13 10347 Humboldt 3 mi e Trinidad; Northern Coast Region 60 Comment
  CHSC61999  Rubus spectabilis J. R. Biddison 1993-4-6 15 Humboldt Elk Prairie campground, Prairie Creek Redwoods State Park. Next to creek. 30 Comment
  HSC100638  Rubus spectabilis Carl C. Marshall Apr 1886 165 Humboldt Everywhere in rich soils. Comment
  HSC31034  Rubus spectabilis G. D. Wallace, Larry E. DeBuhr 1972-3-29 1010 Humboldt Prairie Creek Redwoods State Park in campground Comment
  JEPS44771  Rubus spectabilis Joseph P. Tracy 1923-4-15 6192 Humboldt at Berry's Northern Coast Ranges, Redwood Creek (Redwood Creek) 274 Comment
  CAS-BOT-BC158792  Rubus ursinus Joseph P. Tracy 1946-8-25 17637 Humboldt Field's Landing, 2 miles above town. 6 Comment
  HSC38943  Rubus ursinus Linda M. Barker 1976-6-1 1565 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1199052  Rubus ursinus Joseph P. Tracy 1935-5-25 13827 Humboldt along headwaters Larrabee Creek (Blocksburg); along headwaters of Larrabee Creek 457 Comment
  UCD17840  Rubus ursinus H. Olmo 8-10 May 1962 62- 38 A Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. Comment
  HSC76413  Rudbeckia californica Michael Ericksen 1981-8-21 1082 Humboldt Near Dan East Cabin 1609 Comment
  SEINET5710897  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  HSC17569  Rumex acetosella D. B. Bader 1963-3-1 37 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  HSC17580  Rumex acetosella Elrid H. Spinas 1948-6-16 66 Humboldt Horse Mtn. Comment
  UCSB30608  Rumex acetosella Edwards, David 1974-8-12 Humboldt North side of 7th St., just W. of its overpass of U.S. 101, Arcata. 18 Comment
  HSC75496  Rumex californicus J. O. Sawyer 1980-7-18 3638 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1101197  Rumex conglomeratus Malcolm A. Nobs, S. Galen Smith 1949-8-9 1236 Humboldt pond on s side of the town of Blue Lake town of Blue Lake Comment
  UCD100941  Rumex fueginus W. L. Jepson 1921-8-7 9329 Humboldt Stone Lagoon. Humboldt Coast. Comment
  SD50776  Rumex obtusifolius Darley F. Howe 1959-8-4 2804 Humboldt 86 miles west of Weaverville on #299 152 Comment
  CAS-BOT-BC433704  Rumex occidentalis Doris Kildale Gillespie 1931-6-7 10651 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  UC722995  Rumex salicifolius var. crassus C. L. Hitchcock and J. S. Martin 1939-7-14 5438 Humboldt Shelter Cove Comment
  CAS-BOT-BC434095  Rumex transitorius Doris K. Kildale 1927-6-25 3553 Humboldt Shelter Cove. Comment
  CAS-BOT-BC434098  Rumex transitorius Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC17821  Ruppia cirrhosa Jerry Parker 1968-10-26 212 Humboldt Big Lagoon County Park, Big Lagoon Comment
  RSA301862  Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 17267 Humboldt [Unspecified] Comment
  UC709433  Rytidosperma penicillatum Joseph P. Tracy 1941-8-17 16994 Humboldt Hungry Hollow Bald Mt. 762 Comment
  JEPS93176  Salicornia virginica Margriet Wetherwax and Kevin Downing 1993-8-9 2456 Humboldt just n of Eureka (on e side of Humboldt Bay, s side of Eureka Slough, near Bayside Road and Myrtle, just past Pigeon Point); Humboldt Bay, Eureka Slough 5 Comment
  CAS-BOT-BC103820  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01237 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  POM220144  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 969 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  UC469442  Salix exigua var. hindsiana Joseph P. Tracy 1931-9-19 9673 Humboldt Van Duzen R. Alton; Northern Coast Region 30 Comment
  CAS-BOT-BC106853  Salix hookeriana Jim Davis 1933-4-25 8 Humboldt Samoa Comment
  CAS-BOT-BC106860  Salix hookeriana W. J. Ferlatte 1967-6-13 1118 Humboldt Clam Beach Lagoon 6 Comment
  HSC60288  Salix hookeriana Phyllis Krieg 1979-4-21 Humboldt Clam Beach Lagoon, E of Hwy. 101 0 Comment
  HSC90433  Salix hookeriana Jean Hanson 1980-3-8 18 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC98009  Salix hookeriana Cara Witte 2007-7-26 593 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  POM219354  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt Near Samoa. On Humboldt Bay. 6 Comment
  RSA152531  Salix hookeriana Joseph P. Tracy 1948-4-4 17959 Humboldt Near Samoa on Humboldt Bay. 6 Comment
  RSA5644  Salix hookeriana H. E. Parks 1931-5-28 1000 Humboldt Little River Lagoon. 0 Comment
  UC1196543  Salix hookeriana Joseph P. Tracy 1948-4-11 17971 Humboldt Eel R. at Camp Grant; Eel R. 48 Comment
  UC1196545  Salix hookeriana Joseph P. Tracy 1932-5-10 9951 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC1196630  Salix hookeriana J. P. Tracy 1905-3-26 2151 Humboldt Immediate vicinity of Eureka 0 Comment
  UC275525  Salix hookeriana Joseph P. Tracy 1924-9-21 6884 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC470431  Salix hookeriana Joseph P. Tracy 1927-9-25 8382 Humboldt Table Bluff Northern Coast Ranges 91 Comment
  UC481349  Salix hookeriana Harold E. Parks 1931-5-12 953 Humboldt Samoa Comment
  UC481355  Salix hookeriana Harold E. Parks 1931-5-12 956 Humboldt Samoa Humboldt Bay, Samoa Comment
  UC506395  Salix hookeriana Joseph P. Tracy 1932-8-27 10753 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (on gravel bar farthest upstream (nearest the Blue Slide bridge)) 91 Comment
  UC519334  Salix hookeriana H. E. Parks and Joseph P. Tracy 1933-6-11 12540 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 91 Comment
  RSA0034665  Salix hookeriana var. tomentosa Harold E. Parks 1931-5-12 0952 Humboldt Samoa, Humboldt Bay. 0 Comment
  UC1173614  Salix laevigata Joseph P. Tracy 1935-6-22 13960 Humboldt mouth of Larrabee Creek (on Eel River); Eel River 45 Comment
  HSC19987  Salix lasiandra H. E. Parks 1931-5-14 959 Humboldt Lower Van Duzen River 0 Comment
  UC1196583  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1941-3-26 16815 Humboldt opposite mouth of Willow Creek Lack Pond; Trinity River Valley Comment
  UC490524  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-4-17 9797 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UC518901  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 2 Humboldt around Eureka Eureka Comment
  CAS-BOT-BC107586  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1317 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107587  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1321 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107593  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1324 Humboldt In dry ravines on west slope of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  CAS-BOT-BC107621  Salix lasiolepis Doris K. Kildale 1929-3-10 6935 Humboldt Bug Creek - Chaparral Mt. Comment
  CHSC96698  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC19990  Salix lasiolepis R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-27 1358 Humboldt 1.5 mi. E of Blue Lake on Hwy. 299 Comment
  HSC96360  Salix lasiolepis Gordon Leppig 1999-7-9 1188 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  HSC98523  Salix lasiolepis Cara Witte 2007-7-3 409 Humboldt White Oak Opening. 1242 Comment
  JEPS12956  Salix lasiolepis Joseph P. Tracy 1931-9-7 9643 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 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
  UC1222296  Salix lasiolepis Joseph P. Tracy 1950-4-20 18623 Humboldt gravel bar in river 10 mi se Dinsmore's (about 4 mi se of Kuntz); Van Duzen River Comment
  UC176177  Salix lasiolepis Joseph P. Tracy 1912-7-26 3840 Humboldt Kneeland Prairie, Lawrence Creek Northern Coast Ranges, Kneeland Prairie, Lawrence Creek 762 Comment
  UC470407  Salix lasiolepis Joseph P. Tracy 1931-9-26 9697 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC490546  Salix lasiolepis Joseph P. Tracy 1932-4-24 9806 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC506399  Salix lasiolepis Joseph P. Tracy 1932-8-21 10359 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower western foothills of mt.) 457 Comment
  UC511980  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC519332  Salix lasiolepis Joseph P. Tracy 1933-10-15 13094 Humboldt near Miranda South Fork of Eel River 121 Comment
  CAS-BOT-BC107294  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01239 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107421  Salix lasiolepis var. lasiolepis Alice Eastwood 1913-7-3 3417 Humboldt Bear River, McCourtneys Bridge Comment
  SBBG29043  Salix lucida subsp. lasiandra H. E. Parks, J. P. Tracy 1931-5-17 966 Humboldt Willow Crk at Trinity River 150 Comment
  CAS-BOT-BC125617  Salix melanopsis Doris K. Kildale 1926-7-11 2365 Humboldt Bear River near Capetown 30 Comment
  HSC20033  Salix melanopsis C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-13 1252 Humboldt Mad River at Engelhart gravel pit, 2 mi. E of Redwood Hwy. and above Blue Lake Rd. Comment
  JEPS14848  Salix melanopsis Lincoln Constance 1934-5-27 688 Humboldt s end of Dyerville Bridge (S. Fork Eel River); Bull Creek Region, S. Fork Eel River 45 Comment
  RSA5689  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  UC1196637  Salix melanopsis Joseph P. Tracy 1932-8-27 10746 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC469452  Salix melanopsis Joseph P. Tracy 1931-9-7 9641 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC469454  Salix melanopsis Joseph P. Tracy 1931-9-7 9634 Humboldt Trinity R. Valley at Willow Creek Bridge; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC469458  Salix melanopsis Joseph P. Tracy 1931-9-19 9681 Humboldt Van Duzen R. Alton; Northern Coast Region, Van Duzen R. 30 Comment
  UC481310  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 974 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC519362  Salix melanopsis Joseph P. Tracy 1933-6-7 12515 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC519364  Salix melanopsis Joseph P. Tracy 1933-6-9 12533 Humboldt along Eel R. Shively; Northern Coast Ranges, Eel R. 30 Comment
  UC519368  Salix melanopsis Joseph P. Tracy 1933-7-20 12806 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  CAS-BOT-BC129162  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay, near sea level Comment
  CAS-BOT-BC129169  Salix scouleriana Joseph P. Tracy 1932-7-17 10694 Humboldt Rocky exposed places, head of Devil's Hole - Trinity Summit, Klamath Mountains 1828 Comment
  JEPS14778  Salix scouleriana Joseph P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  JEPS38447  Salix scouleriana Joseph P. Tracy 1926-7-25 7753 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC1173626  Salix scouleriana Joseph P. Tracy 1937-3-21 15237 Humboldt Van Duzen R. at Grizzly Creek; Van Duzen R. 91 Comment
  UC1196694  Salix scouleriana Joseph P. Tracy 1932-10-12 10876 Humboldt along S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R., Miranda 91 Comment
  UC490528  Salix scouleriana Joseph P. Tracy 1932-7-17 10694 Humboldt head of Devil's Hole; Klamath Mts., Trinity Summit 1828 Comment
  UC525974  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch) Trinidad; , Spruce Cove (Parks Ranch) Comment
  CAS-BOT-BC128995  Salix sitchensis Joseph P. Tracy 1933-7-16 12773 Humboldt South Fork Mountain: in wet meadow at McKay Camp 1676 Comment
  CAS-BOT-BC128998  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  POM219569  Salix sitchensis H. E. Parks 1931-3-26 906 Humboldt Alton on Van Duzen River. 15 Comment
  UC504019  Salix tracyi C. R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1244 Humboldt Van Duzen River at Blue Slide 91 Comment
  CDA5800  Salpichroa origanifolia J. Sievert 1981-9-24 s.n. Humboldt Elk River Road, 0.1 mile east of junction with Ridgewood Drive behind Wonnacott Kennels, 6101 Elk River Road. 0 Comment
  CAS-BOT-BC235016  Sambucus Volney Rattan 1878-1-1 s.n. Humboldt 3 mi. E Eureka Comment
  CAS-BOT-BC235124  Sambucus racemosa var. racemosa D. E. Breedlove 1962-6-8 3059 Humboldt U.S. Highway 101, 5 miles south of Orick 30 Comment
  HSC3983  Sambucus racemosa var. racemosa Francis Winter 1960-4-19 Humboldt Samoa pennisula, 3 mi. N of U. S. Coast Guard Station, near Arcata. Comment
  UC168945  Sambucus racemosa var. racemosa Joseph P. Tracy 1910-6-19 3155 Humboldt near Forks of Eel River; Northern Coast Region, region about Humboldt Bay 0 Comment
  BLMAR57  Sanicula arctopoides Jennifer Anthony-Wheeler 1994-2-24 57 Humboldt Samoa dunes, growing in Samoa Dunes rare plant area in dune mat habitat 12 Comment
  HSC21615  Sanicula arctopoides R. T. Forester 1963-3-13 22 Humboldt 1/2 mi. N of Fairhaven on Samoa Rd. Comment
  HSC21619  Sanicula bipinnatifida Eldrid H. Spinas 1948-5-22 46 Humboldt Horse Mountain Comment
  HSC68612  Sanicula crassicaulis Jacqueline Greenleaf 1980-7-16 245 Humboldt Near Buck Mountain. 1250 Comment
  HSC89601  Sanicula crassicaulis M. Roantree 1985-4-28 16 Humboldt W side of Trinidad Head, along trail Comment
  JEPS282  Sanicula crassicaulis Joseph P. Tracy 1927-5-8 7968 Humboldt facing South Fork of Eel River (Phillipsville); Phillipsville 121 Comment
  UC1197097  Sanicula crassicaulis Joseph P. Tracy 1914-5-14 4426 Humboldt Northern Coast Ranges, Fort Seward Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  HSC91934  Sanicula crassicaulis E. Mackey 1986-5-13 Humboldt Patrick's Point State Park, edge of forest at Palmer's Point Comment
  HSC95100  Sanicula crassicaulis Andrea Pickart 2002-6-30 131 Humboldt Lamphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  UC1222810  Sanicula crassicaulis Joseph P. Tracy 1950-2-12 18601 Humboldt 5 mi e of town of Carlotta (near Riverside Park) 30 Comment
  HSC48752  Sanicula graveolens Brad Klipfel 1973-6-16 78 Humboldt Along ridge trail SE of N Trinity Mountain 1829 Comment
  HSC65889  Sanicula tracyi R. York 1980-5-23 622 Humboldt Near Buck Mtn. 1524 Comment
  HSC34957  Sanicula tuberosa Thomas W. Nelson 1975-5-24 1863 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC69867  Sanicula tuberosa Thomas W. Nelson 1978-5-28 4095 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  UC1197078  Sanicula tuberosa Joseph P. Tracy 1918-5-28 4946 Humboldt Northern Coast Ranges, on Bald Mt., High Prairie High Prairie; Northern Coast Ranges, Bald Mt., High Prairie 1066 Comment
  UC153998  Satureja douglasii Joseph P. Tracy 1908-6 2926 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC90687  Schoenoplectus americanus Gail Newton 1982-5-31 3562 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC111703  Schoenoplectus pungens var. badius Carl B. Wolf 1927-8-22 795 Humboldt Big Lagoon Comment
  HSC44816  Schoenoplectus tabernaemontani B. Marcot 1977-7-12 Humboldt Comment
  UC419066  Scirpus acutus var. occidentalis H. E. Parks 1930-9-14 771 Humboldt n shore Big Lagoon; n shore Big Lagoon Comment
  UC668018  Scirpus acutus var. occidentalis Joseph P. Tracy 1934-7-20 13472 Humboldt Big Lagoon 3 Comment
  UC668012  Scirpus cernuus Joseph P. Tracy 1934-7-13 13386 Humboldt Trinidad 91 Comment
  UC963872  Scirpus cernuus H. E. Parks and S. T. Parks August, 1943 24244 Humboldt Spruce Cove North Coast Ranges, , Trinidad (Trinidad) 60 Comment
  HSC36890  Scirpus microcarpus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2058 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  HSC91622  Scirpus microcarpus E. Mackey 1986-7-21 Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC110926  Scirpus microcarpus Joseph Prince Tracy 1934-6-21 13242 Humboldt Near Fields Landing 6 Comment
  UC1197750  Scoliopus bigelovii Mrs. Harriet Tracy 1909-3-5 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC517413  Scoliopus bigelovii Doris K. Kildale 1927-3-19 2903 Humboldt Luffenholtz Creek near Trinidad Comment
  UC1222533  Scoliopus bigelovii Joseph P. Tracy 1950-4-20 18611 Humboldt 1 mi. w. Dinsmore's (along Van Duzen R., opposite Buck Mt.); Van Duzen R. 762 Comment
  RSA425151  Scrophularia californica Christopher Davidson 1973-5-29 2202 Humboldt 2 miles S of Carlotta on Hwy 36 61 Comment
  RSA89764  Scrophularia californica Philip A. Munz 1954-7-25 19878 Humboldt Behind dunes at Samoa. Comment
  UC154261  Scutellaria antirrhinoides M. H. Manning 1900-1 Humboldt near Hupa Comment
  BLMAR588  Scutellaria antirrhinoides Jennifer Wheeler 2010-7-13 588 Humboldt King range, Panther Gap Road 792 Comment
  JEPS62919  Scutellaria antirrhinoides W. L. Jepson 1902-7-1 1969 Humboldt near Berrys Ranch (Redwood Creek, Expedition from Ukiah to the Hupa Indian Reservation); Redwood Creek Comment
  UC1222865  Scutellaria antirrhinoides Joseph P. Tracy 1950-6-15 18788 Humboldt 7 mi n of Harris (Mail Ridge, Jenk's Ranch); Mail Ridge, Jenk's Ranch Comment
  HSC100510  Scutellaria bolanderi Carl C. Marshall May 1887 422 Humboldt Near Alder Point. Comment
Read comments
Jul 22 2018
  UC154015  Scutellaria californica Joseph P. Tracy 1908-6 2817 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC25878  Scutellaria tuberosa C. C. Marshall 1888-1 Humboldt Comment
  HSC79258  Sedum laxum subsp. flavidum D. K. Imper 1983-7-13 Humboldt Six Rivers National Forest, Sims Mtn. next to FS 4N01, 1 1/4 mi. S of Sugarloaf Mtn. 1280 Comment
  HSC56937  Sedum obtusatum subsp. retusum G. L. Clifton, Butler 1979-7-23 9405 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC58165  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-8-2 12231 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  CAS-BOT-BC63824  Sedum spathulifolium L. E. Smith 1913-4-2 s.n. Humboldt Between Pitt and Hermit. Comment
  UC1225751  Sedum spathulifolium Joseph P. Tracy 1948-5-15 17981 1/2 Humboldt along Trinity Highway Willow Creek Canyon (on rocks at the East Fork Willow); East Fork Willow Creek, Willow Creek Canyon 457 Comment
  JEPS19067  Selaginella oregana Joseph P. Tracy 1933-11-26 13124 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  POM182453  Selaginella wallacei Joseph P. Tracy 1912-7-26 3850 Humboldt Kneeland Prairie. 762 Comment
  SEINET10472835  Senecio Mary Susan Taylor 1982-10-24 Taylor 5185 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  HSC48867  Senecio integerrimus Brad Klipfel 1973-6-10 62 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA167251  Senecio jacobaea Joseph P. Tracy 1946-8-18 17626 Humboldt East side of Big Lagoon Comment
  UC1199491  Senecio minimus Joseph P. Tracy 1936-8-23 15161 Humboldt Carlotta Northern Coast Ranges Comment
  UCD135752  Senecio sylvaticus W. L. Colwell 1955-10-1 30 Humboldt Brush Mountain. 1066 Comment
  UC581750  Senecio triangularis Joseph P. Tracy 1933-7-25 12846 Humboldt Grouse Mountain North Coast Ranges, Grouse Moutain 1524 Comment
  HSC6135  Senecio vulgaris S. R. Johnson 1965-4-16 42 Humboldt 1 mi. N of Luffenholtz Beach Comment
  CHSC74935  Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-11-1 Humboldt Humboldt Redwoods State Park. On the flood plain of the Founder's Grove. Comment
  UC195423  Sequoia sempervirens Joseph P. Tracy 1914-12-20 4638 Humboldt Eureka 0 Comment
  CAS-BOT-BC364785  Sericocarpus oregonensis subsp. oregonensis Henry M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Van Fleet place, Orleans region Comment
  CDA13777  Setaria parviflora P. Haggard 1997-12-12 s.n. Humboldt North Coast Ranges; 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. 0 Comment
  RSA44417  Setaria pumila Henry M. Pollard 1947-8-19 s.n. Humboldt Klamath River near Wilson Creek, Orleans region Comment
  HSC96274  Sidalcea malachroides Gordon Leppig 2002-5-22 1710 Humboldt Van Duzen River Watershed, Redwood House Rd. Simpson Timber Co. 540 Comment
  UC1197963  Sidalcea malachroides Joseph P. Tracy 1936-8-1 15061 Humboldt 6 mi se Korbel (Canyon Creek); , se of Korbel 304 Comment
  UC1197965  Sidalcea malachroides Joseph P. Tracy 1933-7-21 12819 Humboldt between Van Duzen Yager Creek (Redwood House); between Van Duzen and Yager Creek, Redwood House 762 Comment
  RSA87998  Sidalcea malviflora C. L. Hitchcock 1952-6-28 19639 Humboldt Dow s Prairie, 4 miles N. of Arcata, Comment
  HSC56434  Sidalcea malviflora subsp. patula Griswold, Butler 1979-7-12 7148 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC96287  Sidalcea malviflora subsp. patula Gordon Leppig 2004-5-7 2146 Humboldt Hwy. 36, 1 km E of Alton, N side of road 35 Comment
  POM264602  Sidalcea malviflora subsp. patula H. E. Parks 1940-05 24177 Humboldt Dow s Prairie 30 Comment
  HSC103762  Silene M. R. Mesler, Sydney Carothers 2013-6-3 1481 Humboldt Near Castle Rock on FS 5N40 about 3.2 miles from NF 60 1248 Comment
  UC1198364  Silene antirrhina Joseph P. Tracy 1911-7-12 3519 Humboldt mountain slopes along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges, btw Three Creeks and mouth Willow Cre 762 Comment
  UC668100  Silene californica Joseph P. Tracy 1935-6-23 13997 Humboldt French Camp Ridge 1066 Comment
  UC668093  Silene campanulata Joseph P. Tracy 1932-7-18 10704 Humboldt head of Brett Hole Trinity Summit, head of Brett Hole 1828 Comment
  UC13562  Silene campanulata subsp. glandulosa Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC100417  Silene gallica Carl C. Marshall May 1885 73 Humboldt Dry soils, roadsides, etc. Comment
  CAS-BOT-BC388938  Silene grayi Joseph P. Tracy 1932-7-12 10477 Humboldt Trinity Summit. Head of Brett Hole 1828 Comment
  UC659353  Silene hookeri Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2612 Humboldt near Eureka; McClellan Mountain, near Eureka 822 Comment
  UC668192  Silybum marianum Joseph P. Tracy 1938-7-6 16026 Humboldt Big Lagoon 12 Comment
  UC180226  Sinapis arvensis Joseph P. Tracy 1914-10-11 4635 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  JEPS53885  Sisymbrium altissimum W. L. Jepson 1932-8-8 16530 Humboldt hill above Weott Comment
  UC1198796  Sisymbrium officinale Joseph P. Tracy 1932-7-17 10658 Humboldt Trinity Summit at Corral Prairie Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 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
  UCR45836  Smilacina stellata Barry Silver 1986-4-23 537 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  SBBG70622  Solanum umbelliferum S. W. Hutchinson -Apr-1927 978 Humboldt near Eureka 243 Comment
  UC154277  Solanum umbelliferum Mrs. M. H. Manning 1901-6-7 88 Humboldt near Hupa Comment
  RSA47108  Solanum umbelliferum Doris K. Kildale 1925-5-10 625 Humboldt Strongs Station Comment
  CAS-BOT-BC365438  Solidago elongata H. E. Parks; S. T. Parks 1937-9-1 24081 Humboldt Spruce Cove, Trinidad 64 Comment
  HSC57904  Solidago elongata Gilbert Muth 1979-7-31 11501 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  SBBG27331  Solidago elongata H. E. and S. T. Parks -Sep-1937 24081 Humboldt Spruce Cove, Trinidad 64 Comment
  UC1541616  Solidago elongata Harold E. Parks Jul 1 1931-Aug 1 1931 1056 Humboldt Trinidad 76 Comment
  CAS-BOT-BC365435  Solidago elongata Doris K. Kildale 1925-8-8 2459 Humboldt Mouth of Bull Creek Comment
  CHSC69500  Solidago spathulata Vernon Oswald; Lowell Ahart 1997-9-4 8852 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.1 mi south of Hwy. 255. ON dunes. 6 Comment
  HSC90234  Solidago spathulata L. Watson, J. Meninga Aug 1990 10 Humboldt Near Manilla. Mad River Slough and Dunes. 10 ft. N of parking lot, E of trail Comment
  SD117466  Solidago spathulata Robert F. Thorne 1974-7-29 45070 Humboldt Samoa Dunes Comment
  CAS-BOT-BC364969  Solidago velutina subsp. californica Carl D. Duncan 1920-9-22 s.n. Humboldt On bank of Trinity River, Hoopa Valley Comment
  UC1199365  Sonchus asper Joseph P. Tracy 1935-5-19 13809 Humboldt near Myers (South Fork Eel River, North Coast Ranges); North Coast Ranges, South Fork Eel River 91 Comment
  HSC6218  Sonchus asper S. R. Johnson 1965-3-15 11 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC79453  Sonchus asper Kenneth Clark 1980-4-18 605 Humboldt Along access trail to Deadman's Gulch. 46 Comment
  UC466715  Sorbus scopulina Mrs. Manning 1900-1 Humboldt Mt. Hupa Trinity Summit Comment
  HSC21344  Sparganium angustifolium Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  RSA246788  Sparganium angustifolium subsp. emersum Robert F. Thorne, Percy C. Everett 1965-8-9 35321 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC21348  Sparganium emersum D. E. Anderson 1961-9-9 1788 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon. Comment
  UC1103519  Sparganium emersum var. emersum Joseph P. Tracy 1934-10-21 13692 Humboldt in front of s end Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  UC176182  Sparganium emersum var. emersum Joseph P. Tracy 1913-9-9 4405 Humboldt near mouth of Little River; Northern Coast Ranges 3 Comment
  UC672885  Sparganium emersum var. emersum Joseph P. Tracy 1928-9-2 8499 Humboldt near Fruitland 609 Comment
  HSC93850  Spartina densiflora Gordon Leppig, Kai Neander 1999-4-30 1131 Humboldt Humboldt Bay, Eureka, 30 m S of Del Norte St. fishing pier 1 Comment
  OBI36628  Spartina densiflora David J. Keil 1983-7-2 17296 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  HSC4264  Spergularia macrotheca D. K. Smith 1968-11-9 54 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  HSC69752  Spergularia rubra Thomas W. Nelson 1977-10-10 3755 Humboldt Jct. of Fairway Dr. and Lundbar Place, Eureka Comment
  HSC4265  Spergularia salina Norman H. Moe 1962-5-17 Humboldt Lanphere's Place Comment
  RSA246715  Spiraea douglasii Robert F. Thorne, Percy C. Everett 1965-8-7 35195 Humboldt At S end of Big Lagoon. 2 Comment
  UC492192  Spiraea douglasii Joseph P. Tracy 1932-8-28 10760 Humboldt Bald Mountain Northern Coast Ranges (at Lake Prairie) 1066 Comment
  HSC55076  Spiranthes romanzoffiana G. L. Clifton, Griswold 1979-7-31 11686 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1222863  Stachys ajugoides var. ajugoides Joseph P. Tracy 1951-6-21 19526 Humboldt back of Everett Beck's Ranch house (bed of former Goose Lake); Goose Lake, Hydesville Comment
  CHSC42890  Stachys ajugoides var. rigida L. P. Janeway 1987-7-30 2536 Humboldt Along old hwy 101 just south of Dry Lagoon. Along the road. 60 Comment
  UC153992  Stachys ajugoides var. rigida J. P. Tracy 1906-5-20 2466 Humboldt immediate vicinity Eureka 0 Comment
  UC416584  Stachys ajugoides var. rigida Harley P. Chandler June 1901 1465 Humboldt Klamath River North Coast Ranges 304 Comment
  UCLA27599  Stachys ajugoides var. rigida Ynez Whilton Winblad 1941-6-27 Humboldt between Eureka and Orick Comment
  UCLA70876  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-4 15987 B Humboldt Valley of South Yager Creek 762 Comment
  UC726575  Stachys ajugoides var. rigida A. A. Heller 1937-6-11 15919 Humboldt between Bishop Pine Lodge and Big Lagoon (along U. S. Highway #101) Comment
  UCSB5856  Stachys albens Keator, Glenn 1958-6-28 Humboldt Dyerville road; at middle altitudes Comment
  BLMAR315  Stachys chamissonis Jennifer Anthony-Wheeler 2002-8-9 315 Humboldt Lost Coast Headland 121 Comment
  HSC54596  Stachys rigida Overton, Butler 1979-7-24 9672 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UCD126028  Stachys rigida James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6863 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC38476  Stachys rigida var. rigida Lon Hall 1975-6-20 392 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
  RSA67572  Stellaria crispa P. A. Munz 1951-7-15 16550 Humboldt 5 miles N of Willow Creek 305 Comment
  HSC4276  Stellaria media D. B. Bader 1963-2-17 32 Humboldt Second of the Clam Beach Lagoons W. of Hwy.101 Comment
  HSC48033  Stellaria nitens Brad Klipfel 1974-5-27 407 Humboldt Horse Mtn. Comment
  UC1103547  Stellaria nitens Joseph P. Tracy 1918-5-1 4899 Humboldt Kneeland Prairie Northern Coast Ranges (Dan McBride place) 762 Comment
  CAS-BOT-BC516465  Stenanthium occidentale Joseph P. Tracy 1937-7-25 15558 Humboldt Happy Camp Mountain, in Trinity Fummit range, northeast of Hawkins Bar 1280 Comment
  HSC32547  Stephanomeria virgata Thomas W. Nelson 1973-9-3 1122 Humboldt McKeown Ranch N of Dinsmore Comment
  UC205170  Stephanomeria virgata subsp. pleurocarpa Joseph P. Tracy 1919-9-14 5187 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of the Trinity River 152 Comment
  CAS-BOT-BC87619  Streptanthus tortuosus Lincoln Constance; Reed C. Rollins 1942-5-12 2880 Humboldt Klamath-Siskiyou Region. Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 152 Comment
  HSC103087  Streptanthus tortuosus Sydney Carothers 2014-6-22 7 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  HSC70349  Streptanthus tortuosus M. A. Baker 1980-6-7 1812 Humboldt Near Brush Mtn. 1128 Comment
  UC162648  Streptanthus tortuosus var. orbiculatus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5664 Humboldt Hoopa Mt. Comment
  JEPS8452  Streptopus amplexifolius var. americanus Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3417 Humboldt Bald Mountain; at Snow Camp, ridge between Mad River and Redwood Creek (Bald Mountain ridge) 1432 Comment
  HSC17760  Stuckenia pectinata Rollin Sparrowe 1962-5-16 25 Humboldt S of road Comment
  CAS-BOT-BC269574  Symphoricarpos albus var. laevigatus P. C. Everett; E. K. Balls 1959-10-25 23959 Humboldt 14 mi. w. of Willow Creek, along U.S. Hwy. 299 to Arcata 502 Comment
  CAS-BOT-BC269696  Symphoricarpos mollis Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  UC602517  Symphoricarpos mollis Joseph P. Tracy 1932-7-11 10415 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  UC1222988  Symphyotrichum chilense Joseph P. Tracy 1950-9-10 19362 Humboldt 1/2 mi s, 1 mi inland from Cape Mendocino Capetown; Cape Ridge 60 Comment
  UC1199310  Symphyotrichum subspicatum Joseph P. Tracy 1918-7-1 4980 Humboldt 3 mi s of point of the cape Cape Mendocino Comment
  HSC3783  Symphytum asperum Earl Jensen 1968-5-7 Humboldt Thompkins Hill Rd., about 3 mi. S of entrance 15 Comment
  HSC40906  Synthyris reniformis J. O. Sawyer 1970-4-24 2193 Humboldt Along FS Rd. 7N04 at Cedar Creek below Groves Prairie Comment
  UC1198056  Synthyris reniformis Joseph P. Tracy 1933-5-9 12162 Humboldt vicinity of Trinidad; Northern Coast Region 15 Comment
  CAS-BOT-BC221913  Taeniatherum caput-medusae F. A. Weatherbee 1960-6-22 s.n. Humboldt Ft. Baker Ranch, Eureka Comment
  UCD136744  Tanacetum bipinnatum Roman Gankin 1965-8-6 553 Humboldt west of road; 1.3 miles south of Samoa, Samoa Peninsula. Comment
  UCR122356  Tanacetum camphoratum George K. Helmkamp, E. A. Helmkamp 2001-7-8 7012 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  SBBG53001  Tanacetum vulgare J. D. Hobson -Jun-1966 Humboldt Loleta Comment
  CAS-BOT-BC376834  Tanacetum vulgare Doris K. Kildale 1926-7-8 2250 Humboldt Along road between Fernbridge and Fortuna Comment
  HSC100449  Taraxacum dens-leonis Carl C. Marshall Mar 1886 136 Humboldt Everywhere. Comment
  CAS-BOT-BC376895  Taraxacum officinale Doris K. Kildale 1926-5-24 1683 Humboldt Ryan Slough near Occidental Ranch Comment
  HSC6268  Taraxacum officinale Francis Winter 1960-4-24 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  UC1196938  Taraxia ovata Joseph P. Tracy 1939-4-18 16215 Humboldt w side of river Garberville 152 Comment
  HSC49986  Tauschia glauca M. Andre' Baker 1979-6-7 787 Humboldt On N bank of the road to Snow Mt. 610 Comment
  CAS-BOT-BC85213  Taxus brevifolia Doris K. Kildale 1927-5-13 3126 Humboldt Redwood Creek at Berry's 289 Comment
  SDSU2029  Taxus brevifolia D. F. Howe 1965-8-10 4128 Humboldt 9.8 miles west of willowcreek on #299. 884 Comment
  UC502917  Taxus brevifolia Joseph P. Tracy 1927-3-27 7865 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 762 Comment
  POM117233  Tellima grandiflora Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC667096  Tellima grandiflora Joseph P. Tracy 1935-7-23 14163 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  JEPS49696  Tellima grandiflora Milo S. Baker 1923-7-20 Humboldt near South Yager Creek (Redwood House Road) Comment
  RSA298355  Tellima grandiflora Thomas W. Nelson 1977-6-15 3425 Humboldt Along Forest Rd 5N10 just N of jct with Rd 6N08. 1372 Comment
  UC1222362  Tellima grandiflora Joseph P. Tracy 1950-6-8 18722 Humboldt 7 mi s Ferndale (near Mountain Glen Ranch, Bear River Ridge, summit of ridge); Bear River Ridge 609 Comment
  UC1196167  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1935-5-25 13825 Humboldt along head of Larrabee Creek Blocksburg 518 Comment
  HSC101439  Thelypteris nevadensis Cara M. Witte Aug 2009 1070 Humboldt Grouse Mountain. Forest Service Road 4N32, .25 mile south of intersection with 5N04 1466 Comment
  UC673060  Thermopsis gracilis Joseph P. Tracy 1937-5-31 15326 Humboldt rocky point at Ruby Creek (along Trinity Hwy); Willow Creek Canyon 518 Comment
  UC1198811  Thlaspi montanum var. montanum Joseph P. Tracy 1939-4-29 16234 Humboldt near Weitchpec (along Trinity River); , near Weitchpec 121 Comment
  CAS-BOT-BC81309  Thuja plicata Carl B. Wolf 1930-10-25 1764 Humboldt along road from Blue Lake to Willow Creek (Lord Ellis Road) 9 miles above Blue Lake 243 Comment
  CAS-BOT-BC81311  Thuja plicata Carl B. Wolf 1930-10-25 1764 Humboldt along the Blue Lake to Willow Creek Road (Lord Ellis Road), 9 miles above Blue Lake 243 Comment
  HSC1302  Thuja plicata R. A. Rasp 1964-5-20 45 Humboldt HSC Campus Comment
  NY17208  Thuja plicata L. S. Rose 1926-6-26 66039 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  POM160766  Thuja plicata Joseph P. Tracy 1920-9-19 5401 Humboldt North fork of Mad River. 305 Comment
Read comments
Jul 25 2018
  SEINET3866799  Thuja plicata Lewis S. Rose 1966-6-26 66039 Humboldt Us Highway 299. 10 mi east of Blue Lake.; 0 610 Comment
  UCR3547  Thuja plicata David Whistler, H. M. Whistler 1964-8-1 640801- 6 Humboldt US Hwy 299, 9 mi east of Blue Lake. Comment
  UCSC000347  Tiarella trifoliata subsp. unifoliata R. Stahelin 1933-5-17 s.n. Humboldt Eureka, Arcata City Park Comment
  CAS-BOT-BC436903  Tiarella trifoliata var. unifoliata L. R. Abrams 1916-7-11 6014 Humboldt Mouth of Grizzley Creek on Van Duzen River Comment
  CAS-BOT-BC436914  Tiarella trifoliata var. unifoliata C. C. Harris; S. K. Harris 1936-6-16 660 Humboldt Yager Road from Carlotta 152 Comment
  UC1073332  Tiarella trifoliata var. unifoliata George B. Rossbach 1955-6-10 299 Humboldt between Route 101 and West Branch of South Fork of Eel River (Stephens Redwood Grove); , btw Rte and W Branch of S Fk Eel Riv Comment
  SEINET3888616  Tofieldia occidentalis Carl B. Wolf 1934-7-2 5878 Humboldt Snow Camp (Mts. E. of Korbel). Near small lake.; 0 1372 Comment
  UC275557  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1924-7-4 6709 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  UC154137  Tolmiea diplomenziesii Joseph Burtt Davy and Walter C. Blasdale 1899-5 5628 Humboldt Bald Mt.; North Coast Ranges Comment
  HSC73176  Tonella tenella M. A. Baker 1980-5-17 1249 Humboldt Near Le Perron Peak 1066 Comment
  HSC49820  Toxicodendron diversilobum R. York 1979-4-21 244 Humboldt Behind the town of Korbel, Camp Bauer Comment
  SEINET12238542  Toxicodendron diversilobum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -300 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CAS-BOT-BC323056  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC323057  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  RSA591513  Tracyina rostrata J. L. Strother 1996-5-30 1363 Humboldt NE of Alderpoint, easterly from Alderpoint-Blocksburg Road, 1km (0.6mi) on unpaved Stewart Ranch Road. 160 Comment
  UC1199329  Tracyina rostrata Joseph P. Tracy 1916-6-20 4736 Humboldt Parry's Ranch Northern Coast Ranges, Dobbyn Creek 182 Comment
  UC577370  Trichostema lanceolatum Joseph P. Tracy 1934-8-19 13595 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS43082  Trientalis latifolia Joseph P. Tracy 1926-5-22 7509 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  RSA69006  Trientalis latifolia F. W. Peirson 1923-7-9 s.n. Humboldt first summit on road between coast and Eel River Comment
  UC1223382  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1933-5-20 12248 Humboldt 1 mile west Petrolia (Mattole Valley); Northern Coast Ranges Comment
  UC495667  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-17 10094 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC495671  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1927-6-5 8101 Humboldt s Yager Creek (valley); Northern Coast Ranges 762 Comment
  UC1197494  Trifolium barbigerum J. P. Tracy 1910-5-22 3138 Humboldt immediate vicinity Eureka 0 Comment
  UC162829  Trifolium barbigerum J. P. Tracy 1909-5-2 2964 Humboldt immediate vicinity Eureka 0 Comment
  UC1223496  Trifolium bifidum var. bifidum Joseph P. Tracy 1935-5-25 13903 Humboldt betw forks of creek; Dobbyn Creek Comment
  UC1197057  Trifolium bifidum var. decipiens J. P. Tracy 1900-6-5 846 Humboldt immediate vicinity Eureka 0 Comment
  UC16435  Trifolium bifidum var. decipiens Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5342 B Humboldt Harris Comment
  HSC71452  Trifolium campestre J. P. Smith 1973-5-26 6811 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC97623  Trifolium cyathiferum Cara Witte 2007-6-4 195 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC162857  Trifolium cyathiferum Joseph P. Tracy 1908-6 2827 Humboldt nw slope Buck Mtn; Northern Coast Ranges 1219 Comment
  HSC45124  Trifolium depauperatum R. Sutherland 1978-5-2 1 .2578 Humboldt 341 Comment
  HSC104458  Trifolium dubium Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 11 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC303191  Trifolium dubium Joseph P. Tracy 1925-5-17 6971 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UCD108818  Trifolium dubium Linda M. Barker 1976-5-13 1476 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC14986  Trifolium dubium J. L. Baker 1965-4-2 56 Humboldt Humboldt Meridain, 4 mi. N of Arcata on North Bank Rd. Comment
  HSC45122  Trifolium dubium R. Sutherland 1978-5-12 1 .12578 Humboldt Mckee Flat 288 Comment
  HSC40039  Trifolium eriocephalum Thomas W. Nelson, James Nelson 1976-7-1 2890 Humboldt Ridge N of Bear Creek 1494 Comment
  UC162781  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1908-6-8 2641 Humboldt at top Lawrence Creek hill; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCD108947  Trifolium fragiferum B. A. Madson 1940-8-7 s.n. Humboldt Humboldt County. Comment
  UC1197034  Trifolium fucatum H. E. Parks and Joseph P. Tracy 1930-5-25 8722 Humboldt near Bridgeville; Northern Coast Ranges 228 Comment
  JEPS33188 Image available Trifolium longipes subsp. elmeri Chesnut and Drew August, 1888 240 Humboldt S. Fork Trinity River. Comment
  HSC102067  Trifolium longipes subsp. hansenii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 969 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC40537  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1976-5-23 2527 Humboldt In the Canyon of Bear Creek, W of Black Lassic 1524 Comment
  JEPS33182  Trifolium longipes var. oreganum Joseph P. Tracy 1926-6-20 7608 Humboldt Horse Mtn Northern Coast Ranges Comment
  UC1197232  Trifolium macraei Joseph P. Tracy 1923-6-18 6281 Humboldt near Mazeppa Ranch (Bear River Ridge); Northern Coast Ranges 30 Comment
  UC495695  Trifolium microcephalum Joseph P. Tracy 1932-5-1 9893 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  CDA27998  Trifolium microcephalum T. C. Fuller 1958-6-17 1723 Humboldt Petrolia, Lower Mattole. 0 Comment
  HSC15147  Trifolium microdon J. W. Johnson 1962-5-10 1332 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  UC160979  Trifolium microdon Joseph P. Tracy 1908-6 2781 Humboldt nw slope Buck Mtn; Northern Coast Ranges 914 Comment
  JEPS66013  Trifolium oliganthum Milo S. Baker 5560 Humboldt s Garberville Comment
  SEINET4178474 Image available Trifolium oreganum Unknown 1950-7-1 18945 Humboldt Near Clear Lake where the Friday Ridge Road comes to the top of Grouse Mountain Ridge. 1219 Comment
  HSC57902  Trifolium repens Gilbert Muth 1979-7-31 11496 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC49247  Trifolium subterraneum R. Sutherland 1978-5-19 2 .19578 Humboldt Mckee Flat 296 Comment
  UC1197554  Trifolium variegatum var. variegatum Joseph P. Tracy 1936-6-17 14969 1/2 Humboldt Burr Valley nw slope of Buck Mtn 1066 Comment
  HSC32919  Trifolium willdenovii Thomas W. Nelson, James Nelson 1973-5-28 966 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC45128  Trifolium willdenovii R. Sutherland 1978-4-23 30 .23478 Humboldt Kinsey Ridge 640 Comment
  UC1223313  Trifolium willdenovii Joseph P. Tracy 1950-5-6 18640 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1223315  Trifolium willdenovii Joseph P. Tracy 1938-6-8 15866 Humboldt Samoa Sand Dunes Comment
  UC1223322  Trifolium willdenovii Joseph P. Tracy 1935-6-8 13945 Humboldt along hwy (at n end of lagoon); Big Lagoon Comment
  UC160943  Trifolium willdenovii Joseph P. Tracy 1903-5-24 1910 Humboldt Alder Point Northern Coast Ranges (Eel River) 152 Comment
  RSA32731  Trifolium wormskioldii A. A. Heller 1923-7-9 13781 Humboldt Near Arcata. Comment
  UC1541579  Trifolium wormskioldii Harold E. Parks May 1934 4329 Humboldt Spruce Cove Trinidad Comment
  UC160991  Trifolium wormskioldii Joseph P. Tracy 1911-6-25 3246 Humboldt Eureka Northern Coast Region 0 Comment
  SEINET12156845  Trifolium wormskioldii J. P. Tracy 1950-1 18714 Humboldt near the "Sand Cut", Wild Cat rd, 2 mi S of Ferndale Comment
  HSC82963  Triglochin concinna A. L. Eicher 1986-5-10 Humboldt Bordering Humboldt Bay, 0.3 mi. S of the jct. of Samoa Blvd. and Vance Ave. 1 Comment
  CHSC69507  Triglochin maritima Vernon Oswald; Lowell Ahart 1997-9-4 8849 Humboldt North Coast Region. Big Lagoon County Park at the southwest edge of Big Lagoon. Bordering a drainage entering the lagoon at the boat ramp. 3 Comment
  HSC37956  Triglochin maritima Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  HSC90807  Triglochin maritima Gail Newton 1982-5-2 2510 Humboldt Elk River Wildlife Area, Eureka Comment
  SEINET3151087  Triglochin maritima N. Dennis 1965-6-8 101 Humboldt along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  UCD138179  Triglochin maritima Malcolm A. Nobs; S. Galen Smith 1949-8-3 1169 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  HSC101812  Trillium albidum Kjirsten A. Wayman 2012-4-29 314 Humboldt Near Burnt Ranch, south of Hwy 299 on FR 5N40, west of intersection with 5N27, N 40.78805 deg. W 123.51164 deg. 942 Comment
  RSA168944  Trillium albidum Joseph P. Tracy 1950-5-7 18646 Humboldt Head of South Yager. Comment
  CAS-BOT-BC519092  Trillium chloropetalum var. chloropetalum D. H. Norris 1970-5-20 12216 Humboldt At crest of ridge on Big Hill Road east of Hoopa, at streamhead. Comment
  HSC101799  Trillium kurabayashii Kjirsten A. Wayman 2011-6-14 284 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary, N 41.69527 deg. W 123.28321 deg. 1433 Comment
  HSC70327  Trillium ovatum M. A. Baker 1980-6-8 1882 Humboldt Near Buck Flat. 1554 Comment
  JEPS47248  Trillium ovatum Lincoln Constance 1934-6-2 794 Humboldt Bull Creek road to mouth of Bull Creek and up Bull Creek; S. Fork Eel River, Bull Creek Region Comment
  UC1197828  Trillium ovatum Joseph P. Tracy 1913-3-9 4019 Humboldt near Hydesville Hydesville; Northern Coast Region 60 Comment
  UC1541275  Trillium ovatum W. K. Parks July 1933 Humboldt S. Fork Mountain Comment
  HSC15701  Trillium ovatum D. M. Thomson 1965-4-26 30 Humboldt Along Gold Bluff Rd. 1.0 mi. S of Prairie Creek State Park Comment
  HSC34635  Trillium ovatum Robert M. Specht 1975-4-9 125 Humboldt W of Seawood Drive exit of Hwy. 101, N of Trinidad Comment
  SEINET3888797  Trillium ovatum S. R. Johnson 1965-3-19 15 Humboldt 2 miles north of Luffenholtz Beach.; 0 Comment
  HSC100565  Trillium sessile Carl C. Marshall Apr 1884 393 Humboldt Hoopa Valley. Comment
  JEPS13339  Triphysaria eriantha subsp. eriantha Harley P. Chandler May, 1901 1142 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  HSC104272  Triphysaria versicolor subsp. versicolor Samantha E. Andres 2016-5-4 6 Humboldt Along Jackson Ranch Rd., near the bridge; ~.25 mi. from Hwy. 255 intersection 3 Comment
  HSC99056  Trisetum canescens Cara Witte 2008-7-10 847 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile from National Forest 1. Under powerlines. 1237 Comment
  UCD93904  Trisetum cernuum A. H. Murphy 1947-8-5 s.n. Humboldt Bald Hills, 7-8 miles SE of Orick. Comment
  UCD93908  Trisetum cernuum Joseph P. Tracy 1900-5-22 800 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC902040  Triteleia bridgesii Joseph P. Tracy 1949-6 18345 Humboldt Mud Springs Trinity Summit 1341 Comment
  UC1197709  Triteleia hyacinthina Joseph P. Tracy 1927-7-4 8239 Humboldt Lone Star Creek Iaqua Region, Lone Star Creek 609 Comment
  HSC38485  Triteleia laxa D. E. Anderson, J. P. Smith 1971-6-18 - 1065 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  JEPS558  Triteleia laxa Joseph P. Tracy 1932-6-26 10269 Humboldt Fort Baker 762 Comment
  SEINET12053141  Triteleia laxa K. S. Erdman 1970-1 4768 Humboldt S slope of Schoolhouse Peak on Bald Hills Road, about 16 mi S of Orick 914 Comment
  UC1222687  Triteleia laxa Joseph P. Tracy 1950-6-8 18755 Humboldt windswept flat s Cape Mendocino; Davis Creek Mouth Comment
  SBBG25959  Tsuga heterophylla E. R. Blakley 1966-8-17 6798 Humboldt Patrick's Pt, 5 mi N of Trinidad 60 Comment
  UCD135133  Tsuga heterophylla Linda M. Barker 1976-6-14 1589 Humboldt Lanphere-Christensen Dunes, coastal forest and dunes 3 miles west of Arcata. Comment
  UCSB26310  Tsuga heterophylla Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  HSC14485  Umbellularia californica W. R. Rogers 1965-5-6 293 Humboldt 3 mi. E of Arcata, Hwy. 299 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
  UC40104  Umbellularia californica W. L. Jepson 1936-8-7 17856 Humboldt upper Butte Creek, Bear Buttes Butte Creek; , Bear Buttes Comment
  SEINET12103378  Umbellularia californica J. P. Tracy 1950-12-10 s.n. Humboldt no further locality Comment
  UC128871  Uropappus lindleyi Harley P. Chandler Jun 1901 1508 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC1222619  Urtica dioica subsp. holosericea Joseph P. Tracy 1950-9-22 19369 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River 121 Comment
  UC585978  Utricularia macrorhiza Joseph P. Tracy 1930-8-3 9146 Humboldt pond near Little Van Duzen R. on old rd. to Dinsmore's 762 Comment
  UC1197772  Vaccinium cespitosum J. P. Tracy 1901-4-7 1007 Humboldt immediate vicinity Eureka; , Rick's Prairie 0 Comment
  CAS-BOT-BC199314  Vaccinium ovatum M. S. Jussel 1931-5-2 s.n. Humboldt 30 miles n. of Garberville Comment
  HSC7909  Vaccinium ovatum C. B. Wolf 1927-8-27 1159 Humboldt Klamath River, 2 mi. below the mouth of the Salmon River Comment
  UC1173686  Vaccinium ovatum Joseph P. Tracy 1939-5-30 16304 Humboldt Dinsmore's, along Van Duzen River Van Duzen River 731 Comment
  UCD166888  Vaccinium ovatum Colleen Rossier 2016-9-16 6 Humboldt In vicinity of Bark Shanty Road, plot Bark Shanty #2. 427 Comment
  CDA38877  Vaccinium ovatum Gordon Leppig 1998-6-26 854 Humboldt McKinleyville, Rte 101 at Mad River Overlook. Comment
  CAS-BOT-BC199406  Vaccinium parvifolium Clarence R. Quick 1959-7-24 59 -35 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  CAS-BOT-BC199410  Vaccinium parvifolium Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  JEPS58705  Vaccinium parvifolium W. L. Jepson 1902-6-24 1926 Humboldt Korbel to Angel's Ranch Comment
  OBI35857  Vaccinium parvifolium David J. Keil 1983-7-2 17329 Humboldt Horse Mtn summit SW of Willow Crk. Comment
  POM118490  Vaccinium parvifolium Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  HSC56072  Valeriana sitchensis subsp. sitchensis G. L. Clifton, Griswold 1979-7-31 11741 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC56438  Vancouveria hexandra Griswold, Butler 1979-7-12 7165 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  RSA12550  Vancouveria hexandra C. B. Wolf 1934-7-2 5888 Humboldt Snow Camp. (Mountains east of Korbel). 1372 Comment
  CAS-BOT-BC76084  Vancouveria planipetala Doris K. Kildale 1926-6-27 2192 Humboldt Sweasey Lake, McClellan Mountain. 822 Comment
  RSA505336  Vancouveria planipetala Barbara Ertter, Thomas J. Delendick 1987-5-16 6941 Humboldt 3 miles E of Berry Summit on Hwy 299, 20 airmiles E of Arcata, near large volcanic rock on S side of road above Willow Creek 800 Comment
  UC1173646  Veratrum insolitum Joseph P. Tracy 1936-8-8 15127 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC75560  Verbena lasiostachys J. O. Sawyer, R. J. Cole 1977-7-3 3013 Humboldt Environs of Mud Spring, Big Hill Rd. (F.S. 8N01) 1524 Comment
  UC585990  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1933-8-13 12965 Humboldt near Blue Lake (along Mad River) 15 Comment
  UC35085  Verbena lasiostachys var. lasiostachys Hy-Ann Pum 1888-7-21 Humboldt Comment
  HSC97542  Veronica americana Ivy Watson 2008-9-28 32 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  JEPS16846  Veronica americana W. L. Jepson 1934-5-7 16707 Humboldt Bull Creek Comment
  RSA46832  Veronica americana Doris K. Kildale 1926-5-9 1988 Humboldt Kneeland Prairie. Comment
  JEPS16826  Veronica americana Joseph P. Tracy 1937-7-2 15389 Humboldt ne of Hawkins Bar (Happy Camp Mountain in Trinity Summit Range); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1011936  Veronica americana F. W. Pennell and J. P. Tracy 1940-7-7 26088 Humboldt headwaters of Willow Creek, Route 299 Willow Creek 762 Comment
  HSC83999  Veronica arvensis L. P. Janeway 1983-5-1 254 Humboldt SW corner of old baseball field (S of new Science Building) 30 Comment
  JEPS16493  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1935-5-25 13832 Humboldt Fort Seward 106 Comment
  UC147903  Veronica serpyllifolia subsp. humifusa J. P. Tracy 1900-5-22 797 Humboldt immediate vicinity of Eureka 0 Comment
  HSC104452  Vicia benghalensis Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 22 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC23780  Vicia cracca R. A. Vanbianchi 1971-9-10 80 Humboldt Along Fieldbrook Rd., .1 mi. from junction with old Hwy. 299 Comment
  RSA755059  Vicia hirsuta Robert F. Thorne, Percy C. Everett 1965-8-8 35266 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  UCSC000430  Vicia sativa H. S. Yates 1936-6-23 5870 Humboldt 13 miles S.E. of Scotia Comment
  UCD108987  Vicia sativa subsp. nigra W. A. Williams 1951-6-1 s.n. Humboldt location unknown. Comment
  UC1197471  Vicia sativa subsp. sativa Joseph P. Tracy 1915-6-6 4651 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC59115  Vicia sativa subsp. sativa Terry Roth 1979-5-29 93 Humboldt Arcata, corner of Alliance Rd. and Westwood Ct. Comment
  CAS-BOT-BC263938  Viola adunca Doris Kildale 1931-5-10 10582 Humboldt Snow Camp Comment
  HSC21760  Viola adunca G. N. Bos 1965-5-2 251 Humboldt 1 mi. E of Fernwood F.G.S. on Bald Mtn. Rd. 762 Comment
  HSC91932  Viola adunca E. Mackey 1986-5-13 Humboldt Patrick's Point State Park; Palmer's Point Comment
  UC707010 Image available Viola californica Milo S. Baker 1946-6-14 11492 Humboldt Miller Spring South Fork Mt.; S Fork of Miller Spring, Humboldt Co. 1524 Comment
  JEPS50434  Viola cuneata Joseph P. Tracy 1926-6-6 7560 Humboldt on road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  HSC21785  Viola glabella Frances Oldridge 1946-1 Humboldt Eureka Comment
  HSC44352  Viola glabella Brad Klipfel 1974-5-8 321 Humboldt Horse Mtn. Comment
  CAS-BOT-BC536496  Viola glabella A. M. Vollmer; L. Beane 1951-6-8 134 Humboldt Grizzly Camp, State Hwy 36 Comment
  CAS-BOT-BC536497  Viola glabella W. R. Dudley 1899-6-19 s.n. Humboldt Shady Run -- Scotia Comment
  HSC49905  Viola glabella Maralyn O'Meara 1973-6-12 205 Humboldt Above Clear Lake Comment
  UCR138879  Viola hallii J. Marshall, J. Savage, L. Allison 1997-5-10 32 Humboldt Humboldt Baseline Meridian: Forest Service Rd. #1, mile marker #8 945 Comment
  UC1761724  Viola macloskeyi W. K. Parks Jul 1933 6239 Humboldt South Fork Mt. Comment
  HSC71727  Viola ocellata M. A. Baker 1980-6-26 2456 Humboldt Near Sims Creek 610 Comment
  RSA80574  Viola praemorsa subsp. praemorsa Milo S. Baker 1935-4-18 8059 Humboldt Near headwaters of S Fork of Yager, ca 2 mi W of Bridgeville. Comment
  SEINET10404788  Viola sarmentosa Unknown 1967-6-16 67 -12 Humboldt of Orick; James Irvine redwood grove, U.S. 101 Comment
  HSC23603  Viola sempervirens J. O. Sawyer 1971-6-14 2375 Humboldt Above E fork of Horse Linto Creek 1494 Comment
  HSC49693  Viola sempervirens J. O. Sawyer 1977-4-23 2842 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC99554  Viola sempervirens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 219 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA273350  Viola sempervirens N. G. Sugihara 1977-4-23 13 Humboldt 2.5 miles S of Shelter Cove Road. South Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC1198436  Viola sempervirens Joseph P. Tracy 1933-3-26 10938 Humboldt Big Lagoon 30 Comment
  JEPS50231  Viola sempervirens Lincoln Constance 1934-5-31 760 Humboldt Bull Creek Flat along Bull Creek (from w boundary of Park to Grasshopper Peak (Squaw Creek)road, n side of creek); Bull Creek Region, South Fork Eel River Comment
  JEPS40249  Vitis californica W. L. Jepson 1921-9-11 9463 Humboldt DeVoy Flat South Fork Eel River (on river bank) Comment
  SEINET200825 Image available Vitis californica Joseph P. Tracy 1911-1 3333 Humboldt Along Willow Creek, a tributary of Trinity River. Near its mouth 152 Comment
  UC1103724  Vulpia bromoides J. P. Tracy 1899-4-30 308 Humboldt immediate vicinity Eureka 0 Comment
  HSC47614  Vulpia microstachys J. P. Smith 1977-4-23 9030 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  RSA183526  Vulpia microstachys D. E. Anderson 1965-5-8 3648 Humboldt 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  UCD93706  Vulpia microstachys H. S. Yates 1936-6-17 5712 Humboldt near Burr Valley. 914 Comment
  HSC97933  Vulpia microstachys var. ciliata Cara Witte 2007-6-19 298 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  UC212887  Vulpia microstachys var. pauciflora Joseph P. Tracy 1919-5-31 5161 1/2 Humboldt near Willow Creek (hillslopes at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC594246  Vulpia microstachys var. pauciflora S. K. Harris, J. P. Tracy and H. S. Yates 1936-6-17 3431 Humboldt Buck Mountain 822 Comment
  HSC9923  Vulpia myuros R. D. Modafferi 1965-5-13 72 Humboldt 1.6 mi. N of Trinidad on Trinity St. 305 Comment
  CAS-BOT-BC185938  Vulpia octoflora var. octoflora Joseph P. Tracy 1929-7-4 8618 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC128816  Whipplea modesta Doris K. Kildale 1928-5-19 5187 Humboldt Chalk Mountain Comment
  HSC20445  Whipplea modesta John A. Dubois 1962-5-12 5 Humboldt 20 mi. E of Arcata Comment
  HSC31566  Whipplea modesta Glenn McGourty 1974-5-11 36 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  UC666827  Whipplea modesta Joseph P. Tracy 1933-6-7 12522 Humboldt Blue Slide Van Duzen River 91 Comment
  HSC79383  Wyethia angustifolia Kenneth Clark 1981-5-24 1393 Humboldt Abalone Pt. 15 Comment
  UCD137002  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. At Ammon Ridge Rd. 1524 Comment
  SEINET200578  X Agropogon littoralis J. P. Tracy 1912-7-26 3834 Humboldt Kneeland Prairie 762 Comment
  RSA441183  Xanthium strumarium M. B. Dunkle 1936-8-22 4856 Humboldt Williams Grove, Eel River. 213 Comment
  HSC31210  Xerophyllum tenax D. E. Anderson 1972-6-20 5728 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  RSA256707  Xerophyllum tenax D. E. Anderson 1972-6-10 5728 Humboldt Along the Redwood Valley - Hoopa Road east of the summit Comment
  HSC34745  Zeltnera muehlenbergii Thomas W. Nelson 1974-7-19 1670 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC104431  Zigadenus fremontii Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  HSC21902  Zostera marina S. Estes 1964-4-4 17 Humboldt N Humboldt Bay Comment



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