Search Results — 2000 specimen records retrieved (1334 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC77966  Abies concolor Doris K. Kildale 1930-8-3 10358 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  HSC55100  Abies concolor G. L. Clifton 1979-7-31 11814 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  POM89804  Abies grandis Joseph P. Tracy 1919-4-6 5725 Humboldt Around Humboldt Bay, Humboldt Hill. 152 Comment
  SDSU1549  Abies grandis W. A. Bemis 1964-4-11 254 Humboldt Mad River, HWY 299. 76 Comment
  UC502907  Abies magnifica var. shastensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8963 Humboldt in forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC100573  Abronia latifolia Carl C. Marshall May 1885 38 Humboldt Sea shore, Humboldt Bay. Comment
  HSC58344  Acer glabrum var. torreyi Overton, Butler 1979-8-2 12671 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA20961  Acer glabrum var. torreyi Carl B. Wolf 1937-9-13 9336 Humboldt North Coast Range, Clear Lake, between Grouse Mountain and Horse Mountain 1524 Comment
  CAS-BOT-BC331587  Acer macrophyllum Doris K. Kildale 1926-8-15 2527 Humboldt Willow Creek near mouth - between first and second fords 152 Comment
  CAS-BOT-BC331594  Acer macrophyllum C. B. Wolf; Johnson 1934-10-11 6756 Humboldt Redwood Highway, Eel River, 6.4 mi N of Humboldt Redwood Park Comment
  HSC41320  Acer macrophyllum Brad Klipfel 1974-9-2 527 Humboldt Horse Mtn. Comment
  HSC69577  Acer macrophyllum R. Kalal 1980-6-1 9 Humboldt S side of Essex Pond 15 Comment
  UCD170788  Acer macrophyllum Gordon Leppig 1998-5-7 750 Humboldt Quarry Rd. off Jacoby Creek. At Jacoby Creek Bridge. 97 Comment
  HSC102524  Achillea millefolium M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1511 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC4569  Achillea millefolium Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  SBBG52982  Achillea millefolium J. D. Hobson -Jul-1966 Humboldt Eureka Harbor, Loleta, 10 mi S of Eureka Comment
  UC1222918  Achillea millefolium Joseph P. Tracy 1941-8-24 17044 Humboldt near, McKay Camp; South Fork Mountain 1676 Comment
  JEPS37083  Achillea millefolium Joseph P. Tracy 1933-5-20 12230 Humboldt south of point Cape Mendocino 3 Comment
  SEINET11854568  Achillea millefolium J. P. Tracy 1947-1 17764 Humboldt Mouth of Little River Comment
  UC1225749  Achlys californica Joseph P. Tracy 1946-6-23 17594 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC400017  Achlys triphylla Harley P. Chandler 1901-6-1 1293 Humboldt North Coast Ranges, Hupa Indian Reservation 182 Comment
  SEINET260372 Image available Achnatherum lemmonii R. Spellenberg 1990-7-10 10248 Humboldt E edge county 8 mi WSW of Salyer 6 mi S of Berry Summit on CA Hwy 299; USFS 1372 Comment
  SEINET5585536 Image available Achnatherum lemmonii Joseph P. Tracy 1926-1 7649 Humboldt Horse Mountain 1524 Comment
  UCD50521  Achnatherum lemmonii Joseph P. Tracy 1951-6-26 19598 Humboldt At Board Camp Mountain, north side, at extreme head of Redwood Creek Comment
  HSC70923  Acmispon micranthus R. York 1980-5-18 573 Humboldt Near Black Mtn. 792 Comment
  HSC40938  Acmispon micranthus Linda M. Barker 1976-6-1 1557 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC96283  Acmispon micranthus J. Breton, A. Livingston 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  HSC98302  Acmispon micranthus Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  RSA168919  Aconitum columbianum Joseph P. Tracy 1950-7-31 19242 Humboldt NE side of top of Grouse Mtn Comment
  UC1238824  Adenocaulon bicolor Joseph T. Gregory 1933-8-6 525 Humboldt near (in woods on road from Orick to Orleans) Gann's Prairie Comment
  UC582522  Adenocaulon bicolor Joseph P. Tracy 1933-8-6 12940 Humboldt in shade of trees French Camp Ridge 1066 Comment
  HSC95886  Adiantum aleuticum Will Ferrand 2002-2-2 23 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  JEPS35154  Adiantum aleuticum Joseph P. Tracy 1925-11-25 7324 Humboldt near s fork Trinity River Valley; Northern Coast Ranges 182 Comment
  RSA458173  Aesculus californica Charlotte M. Hoak 1931-07 s.n. Humboldt Alton. Comment
  HSC100911  Aesculus californica Carl C. Marshall May 1884 64 Humboldt Bear River. Comment
  CAS-BOT-BC30382  Ageratina occidentalis Carl B. Wolf 1927-8-27 1157 Humboldt On the Klamath River, 2 mi. below the Salmon River Comment
  HSC5642  Ageratina occidentalis J. P. Tracy 1922-7-15 6101 Humboldt Along Mad River, near Blue Lake Comment
  HSC57685  Agoseris aurantiaca G. L. Clifton, Griswold 1979-7-25 10901 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC205185  Agoseris aurantiaca var. aurantiaca Joseph P. Tracy 1919-9-23 5284 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC74690  Agoseris grandiflora Gail Newton 1981-8-7 2464 Humboldt Near Board Camp Mtn. 1478 Comment
  HSC98959  Agoseris grandiflora Cara Witte 2008-7-28 956 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1592 Comment
  UC176416  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1912-7-31 3946 Humboldt near summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC1199482  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1921-4-24 5464 Humboldt grassy slopes and open oak groves facing S Fk of Eel River Phillipsville; Northern Coast Ranges, South Fork of the Eel River 121 Comment
  UCD55636  Agrostis A. H. Murphy 1951-7-9 s.n. Humboldt 5 miles south of Ferndale. Bunker Hill Ranch. Comment
  JEPS71136  Agrostis alba W. L. Jepson 1936-8-17 17920 Humboldt near Still's Ranch (2 mi s of Field's Landing) Comment
  UC526888  Agrostis alba Joseph P. Tracy 1932-8-21 10363 Humboldt foothills Chaparral Mountain (Three Cabins); North Coast Ranges, foothills Chaparral Mountain 457 Comment
  UCD51874  Agrostis capillaris var. aristata A. H. Murphy 1951-6-13 58 Humboldt Tooby and Prior Ranch, 3 miles S of Blocksburg. Comment
  SEINET200940  Agrostis densiflora A. A. Beetle 1941-7-8 2884 Humboldt Stone lagoon facing ocean. 6 Comment
  CAS-BOT-BC127280  Agrostis exarata Joseph P. Tracy 1934-7-2 13296 Humboldt Trinidad. 60 Comment
  CAS-BOT-BC127285  Agrostis exarata William Arents Silveus 1938-7-10 2969 Humboldt Eureka. Comment
  CAS-BOT-BC127296  Agrostis exarata Palmer Stockwell 1934-7-13 64 Humboldt Clam Beach. Comment
  HSC64757  Agrostis hallii Bruce Gordon 1978-8-4 121 Humboldt Redwood National Park, about 0.15 mi. NW of junction of Bald Hills Rd. and K & K Rd., in Lyon's Prairie. 774 Comment
  UC511548  Agrostis hallii Ira L. Wiggins 1932-7-25 5896 Humboldt roadsides near McKinleyville Comment
  OBI22534  Agrostis idahoensis Joseph P. Tracy 1941-8-24 17039 Humboldt South Fork Mtn Comment
  UCD52793  Agrostis idahoensis A. H. Murphy 1951-8-17 89 Humboldt Humboldt - Trinity County Line: Racetrack Springs, South Fork Mtn., 15 miles northeast of Bridgeville. 1219 Comment
  SEINET10810391  Agrostis longiligula Joseph P. Tracy 1902-7-4 Tracy 1757 Humboldt 0 Comment
  CAS-BOT-BC139130  Agrostis oregonensis Joseph P. Tracy 1924-7-4 6711 Humboldt Northern Coast Ranges. Snow Camp. 1371 Comment
  CAS-BOT-BC139131  Agrostis oregonensis Joseph P. Tracy 1934-7-13 13392 Humboldt North Coast Ranges. Dows Prairie. 60 Comment
  CDA20604  Agrostis pallens B. Freeman 2005-8-1 PDR 1368990 Humboldt North Coast; Big Lagoon. 0 Comment
  UC552730  Agrostis pallens Joseph P. Tracy 1935-7-28 14335 Humboldt head Brett Hole (rocky exposed places); Trinity Summit 1828 Comment
  UC249863  Agrostis scabra Joseph P. Tracy 1924-8-31 6841 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 91 Comment
  SEINET200838 Image available Agrostis semiverticillata Joseph P. Tracy 1943-5-29 17445 Humboldt Eureka. 30 Comment
  HSC33763  Aira caryophyllea John S. Palmer 1975-5-24 369 Humboldt Off Samoa Blvd., across from boat landing Comment
  UC1103303  Aira caryophyllea J. P. Tracy 1899-7-22 330 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC34696  Alisma triviale Thomas W. Nelson 1974-9-12 1707 Humboldt KOA campground along E side of Hwy. 101, 3 mi. S of Arcata Comment
  CHSC32836  Allium amplectens Lora L. Anderson 1981-4-25 16 Humboldt Ca. 1.5 mi ne Redwood Creek, 4.5 mi n of 299w 18 mi ne of Arcata. 228 Comment
  CAS-BOT-BC460749  Allium amplectens Doris K. Kildale 1925-6-14 676 Humboldt Head of South Yager Creek. Bald Hills 914 Comment
  HSC98054  Allium amplectens Cara Witte 2007-7-11 510 Humboldt National Forest 1. Approximately 1 mile south of intersection with 5N01. Near Spike Buck Mountain. 1591 Comment
  CAS-BOT-BC462972  Allium bolanderi Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC32884  Allium bolanderi var. bolanderi Thomas W. Nelson, James Nelson 1973-5-28 936 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC39553  Allium hoffmanii Thomas W. Nelson 1976-6-14 2706 Humboldt S of Lassic Peak 1524 Comment
  UCD138544  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-10 5417 Humboldt along road to Red Mountain 0.5 mile west of junction with Swayback Ridge Road. 1371 Comment
  SEINET8191725  Allium triquetrum R. R. Halse 2013-3-28 8768 Humboldt Along US Hwy 101, ca 1.0 mile W of Orick. 4 Comment
  CAS-BOT-BC476603  Allium unifolium Mrs. A. W. Kildale 1925-6-1 s.n. Humboldt near Korbel (?) Comment
  RSA75603  Allium unifolium Albert M. Vollmer, L. Beane 1951-6-11 138 Humboldt Horse Mountain-Shelter Cove Road. Comment
  HSC100703  Allocarya diffusa Carl C. Marshall Jun 1887 465 Humboldt Harris and Garberville Rd. Comment
  CAS-BOT-BC453428  Allotropa virgata Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek, near Orleans Comment
  RSA46860  Alnus rhombifolia Doris K. Kildale 1926-8-8 2457 a Humboldt South Fork of Eel River between mouth of Bull Creek and Dyerville bridge. 91 Comment
  RSA46861  Alnus rhombifolia Doris K. Kildale 1926-12-13 1428 Humboldt Bridgeville, bank on Van Duzen. 229 Comment
  HSC3392  Alnus rubra Eugene Andreuccetti 1964-4-2 33 Humboldt 3 mi. N of Tish Tang Ranger Station on Hwy. 96 along Trinity River Comment
  HSC89482  Alnus rubra P. A. Daly 1986-3-12 71 Humboldt Trinidad Head, along trail 61 Comment
  RSA173960  Alnus rubra R. F. Thorne 1957-9-3 19019 Humboldt Patrick s Point State Park. Comment
  UC503095  Alnus rubra Joseph P. Tracy 1930-11-16 9255 Humboldt Alton North Coast Ranges, Van Duzen River (along river) 30 Comment
  UC1103309  Alopecurus aequalis Joseph P. Tracy 1923-6-27 6381 Humboldt near the S. Fork Trinity R. Valley (shores of Lack Pond); Northern Coast Ranges, , Lack Pond 182 Comment
  HSC8887  Alopecurus geniculatus Paul Shields 1955-10-7 Humboldt Essex Pond, near Blue Lake Comment
  UC1103313  Alopecurus geniculatus Joseph P. Tracy 1942-6-2 17091 Humboldt at R.R. trestle Loleta 9 Comment
  UCD55894  Alopecurus geniculatus A. A. Beetle; G. L. Stebbins Jr., J. P. Tracy 1942-6-2 3458 Humboldt South of Eureka Loleta Swamp. Comment
  SEINET202725  Alopecurus saccatus J. P. Tracy 1951-6-21 19525 Humboldt Back of Everett Beck home (formerly George Gray) bed of former Goose Lake Hydesville Comment
  UCD55925  Alopecurus saccatus Beecher Crampton 1953-5-14 1264 Humboldt 1.5 mile south of Walsh Station. Comment
Read comments
May 18 2016
  SEINET11674241  Alopecurus saccatus J. P. Tracy 1951-1 19525 Humboldt back of Everett Beck house (formerly George Gray) bed of former Goose Lake, Hydesville Comment
  SD39999  Ambrosia chamissonis Edith A. Purer 1932-7-27 4144 Humboldt Samoa, near Arcata on sand dunes Comment
  HSC102083  Amelanchier alnifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 987 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC18509  Amelanchier alnifolia H. E. Parks, J. P. Tracy 1925-6-25 2775 Humboldt Lawrence Creek Comment
  HSC70381  Amelanchier alnifolia M. A. Baker 1980-6-7 1794 Humboldt Near Brush Mtn. 1128 Comment
  CAS-BOT-BC142882  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1926-6-27 2225 Humboldt Little Van Duzen River on Weaverville-Bridgeville Road 640 Comment
  HSC70685  Amelanchier alnifolia var. semiintegrifolia Gail Newton 1980-7-15 1574 Humboldt Near Sims Mtn. 1311 Comment
  HSC99379  Amelanchier alnifolia var. semiintegrifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 28 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
  CAS-BOT-BC137865  Ammophila arenaria David D. Keck; J. Clausen 1935-6-16 3387 Humboldt Mouth of Little River. Comment
  HSC46959  Ammophila arenaria J. P. Smith, Thomas W. Nelson 1977-6-30 9201 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  RSA385128  Ammophila arenaria Edith A. Purer 1932-7-27 4157 Humboldt Samoa sand dunes. Comment
  UC1198609  Anagallis arvensis Joseph P. Tracy 1948-9-20 18222 Humboldt Hoopa Valley, along Mill Creek Hoopa Valley, Mill Creek 91 Comment
  HSC96542  Anagallis arvensis Gordon Leppig 1997-8-13 646 Humboldt Big Lagoon County Park 3 Comment
  HSC57923  Anaphalis margaritacea Gilbert Muth 1979-7-31 11547 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC91928  Anaphalis margaritacea E. Mackey 1986-7-21 Humboldt Patricks Point State Park; Palmer's Point Comment
  RSA1464  Anaphalis margaritacea E. R. Johnson 1929-08 1407 Humboldt Arcata Redwood Park 76 Comment
  HSC56060  Angelica arguta G. L. Clifton, Griswold 1979-7-31 11697 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC642308  Angelica hendersonii Joseph P. Tracy 1938-8-28 16134 Humboldt Trinidad 3 Comment
  HSC71419  Angelica hendersonii J. M. DiTomaso 1980-7-29 1797 Humboldt Elkshead, 2 mi N of Trinidad Comment
  CAS-BOT-BC211057  Angelica lucida Joseph P. Tracy 1909-9-19 3087 Humboldt Near Samoa. Region about Humboldt Bay 152 Comment
  HSC101671  Angelica tomentosa Cara Witte 2008-8-6 999 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 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
  JEPS14221  Angelica tomentosa Joseph P. Tracy 1938-8-14 16107 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UC169316  Anisocarpus madioides Joseph P. Tracy 1908-6 2878 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC34553  Anisocarpus madioides Chesnut and Drew 1888-7-10 Humboldt Jarnigans Comment
  UC1222880  Antennaria media Joseph P. Tracy 1950-8-8 19297 Humboldt Croghan Hole Trinity Summit 1676 Comment
  UCD74273  Antennaria stenophylla G. Ledyard Stebbins 1985-6-19 N- 501 Humboldt Nevada: Humboldt County. Santa Rosa Mountains. Along road north of Hinkey Summit, 1.4 miles NE of Martin Creek Guard Station. 1950 Comment
Read comments
Apr 16 2015
  UC1199376  Anthemis cotula Joseph P. Tracy 1918-7-1 4962 Humboldt along Eel River from South Fork to Scotia Eel River 60 Comment
  UC1222873  Anthemis cotula Joseph P. Tracy 1946-8-25 17643 Humboldt Van Duzen River (mouth) Eel River, Van Duzen River Comment
  CAS-BOT-BC137738  Anthoxanthum odoratum David D. Keck 1948-7-1 5968 Humboldt Trinidad. Comment
  HSC8951  Anthoxanthum odoratum E. W. Styskel 1963-5-19 43 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  UC1103319  Anthoxanthum odoratum J. P. Tracy 1899-5-24 318 Humboldt immediate vicinity of Eureka 0 Comment
  UC569482  Anthoxanthum odoratum H. S. Yates 1936-6-23 5853 Humboldt 2 mi e of mouth of Mad River 30 Comment
  UC905596  Anthoxanthum odoratum David D. Keck 1948-7-2 6010 Humboldt 1.5 mi. E. of Freshwater (Garfield), on Kneeland road Comment
  UCD56641  Anthoxanthum odoratum G. Douglas Barbe; T. C. Fuller 1974-6-17 1848 Humboldt North Coast Rages, Eureka, at 707 'L' Street, behind CSAA (California State Automobile Assoc.) district office. Comment
  HSC78963  Anthriscus caucalis L. P. Janeway, Ken Berg 1984-4-11 722 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  RSA43833  Antirrhinum vexillocalyculatum subsp. breweri H. M. Pollard 1947-8-28 s.n. Humboldt NE Perch Creek, Oreleans region. Comment
  SEINET14183378  Aphanes occidentalis Unknown 1918-5-1 4903 Humboldt Plants of Northern Coast Ranges of Califonia warm place by roadside towards McBrides KNEELAND PRAIRIE, HUMBOLDT COUNTY Altitude 2500 ft. Comment
  UC1198740  Aphanes occidentalis Joseph P. Tracy 1918-4-12 4876 Humboldt near Fish's Mill Creek (Dows Prairie); Northern Coast Ranges 30 Comment
  UCSB25082  Apocynum cannabinum Keefe, Joseph 1967-7-8 Humboldt Bank of Ell River, Miranda turnoff, 12.4 miles north of Garberville on U.S. Highway 101 170 Comment
  UC1196202  Aquilegia formosa Joseph P. Tracy 1926-5-9 7453 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  HSC99008  Aquilegia formosa var. formosa Cara Witte 2008-7-16 907 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  HSC97563  Aquilegia formosa var. formosa Cara Witte 2007-6-1 165 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1355 Comment
  HSC74294  Arabis glabra M. A. Baker 1980-7-22 3099 Humboldt Near Grogan Hole. 1676 Comment
  UC1198307  Arabis glabra Joseph P. Tracy 1911-7-12 3522 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  CAS-BOT-BC167258  Aralia californica Doris K. Kildale 1926-11-14 2860 Humboldt Stephen's Grove near Miranda Comment
  UC154136  Aralia californica H. M. Hall 1899-9 Humboldt Eel R. Comment
  HSC98739  Arbutus menziesii Cara Witte 2008-5-26 661 Humboldt Along Forest Service Road 5N10. 1/2 mile south of intersection with Friday Ridge Road. 1487 Comment
  UC412751  Arbutus menziesii Mrs. M. H. Manning Apr. 1902 Humboldt Comment
  CAS-BOT-BC24095  Arctostaphylos canescens subsp. canescens Doris K. Kildale 1926-8-15 2542 Humboldt Hoopa Mountain 792 Comment
  HSC98662  Arctostaphylos canescens subsp. canescens C. Witte 2007-5-17 28 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  CAS-BOT-BC23727  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13139 Humboldt Vicinity of Trinidad 60 Comment
  CAS-BOT-BC23772  Arctostaphylos columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff 91 Comment
  CAS-BOT-BC23787  Arctostaphylos columbiana Doris K. Kildale 1928-2-17 4270 Humboldt Patrick's Point Comment
  JEPS38944  Arctostaphylos columbiana Joseph P. Tracy 1932-2-28 9772 Humboldt around Humboldt Bay; Northern Coast Region, Table Bluff 60 Comment
  RSA622698  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27681 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
  UC1193031  Arctostaphylos columbiana R. H. Neuns 1950-7-13 129 Humboldt 3 mi s Alder Point; Quad. 29D2 548 Comment
  UC397306  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6141 Humboldt Big Lagoon Northern Coast Region; Big Lagoon, Humboldt Co. 6 Comment
  UCD51010  Arctostaphylos glandulosa Lincoln Constance 1984-6-15 886 Humboldt Summit of Grasshopper Peak. 975 Comment
  RSA632801  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27791 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  CAS-BOT-BC38836  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1926-9-15 s.n. Humboldt Junction, South fork of the Trinity and Trinity River Comment
  HSC49996  Arctostaphylos nevadensis M. A. Baker 1979-6-7 781 Humboldt 610 Comment
  UCD52855  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1176 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  CAS-BOT-BC47211  Arctostaphylos uva-ursi Josh Suchocki; Charlene Vullo; Kyle Wear 1995-4-15 101 Humboldt Manila. Comment
  UC1225934  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17500 Humboldt Eureka 45 Comment
  SEINET11987161  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4071 Humboldt Strybing Arboretum, Golden Gate Park, San Francisco, orig. probably from near Samoa Comment
  UCR64184  Arctotheca calendula T. C. Fuller, G. D. Barbe 1989-6-8 4321 Humboldt Larry Pries daily, 3.4 mi west of Main Street, on Centerville beach rd. Ferndale Comment
  RSA86727  Aristida oligantha Joseph P. Tracy 1933-8-27 13000 Humboldt Robertsons Ranch, vicinity of Garberville. 305 Comment
  HSC16896  Armeria maritima subsp. californica F. B. Plett 1963-4-27 33 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC31643  Armeria maritima subsp. californica Glenn McGourty 1974-6-1 79 Humboldt Comment
  HSC47569  Armeria maritima subsp. californica Sheila Logan 1978-4-10 113 Humboldt McKinleyville, foot of Hiller Rd. at Ocean Rd., at Mad River. Comment
  SEINET7253518 Image available Armeria maritima subsp. californica Joseph P. Tracy 1927-1 8115 Humboldt Trinidad 3 Comment
  HSC33417  Arnica cernua Thomas W. Nelson 1974-5-30 1345 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  HSC76342  Arnica cernua Teresa Prendusi 1981-7-9 207 Humboldt Near Cedar Camp 1268 Comment
  CAS-BOT-BC82432  Arnica discoidea Doris K. Kildale 1926-6-27 2190 a Humboldt McClellan Mountain, Sweasey Lake road 822 Comment
  HSC48988  Arnica discoidea M. A. Baker 1979-5-25 763 Humboldt Comment
  HSC48525  Arrhenatherum elatius Thomas W. Nelson, Jane P. Nelson 1978-7-3 4412 Humboldt McKeown Ranch, N of Dinsmore Comment
  CAS-BOT-BC84836  Artemisia douglasiana Doris K. Kildale 1926-8-8 2472 Humboldt Dyerville Bridge 45 Comment
  HSC99551  Artemisia douglasiana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 216 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC98817  Artemisia douglasiana Cara Witte 2007-9-3 642 Humboldt Forest Service Road 5N09. 1 mile east of intersection with National Forest 1. 1332 Comment
  UC1222996  Artemisia douglasiana Joseph P. Tracy 1950-8-20 19326 Humboldt 8 mi below Orleans (in sandy alluvial wash at Big Bar, near Slate Creek); Klamath River 121 Comment
  CHSC68778  Artemisia pycnocephala Vernon H. Oswald 1997-6-5 8542 Humboldt North Spit of Humboldt Bay 3.7 mi south of Hwy. 255, Orvil Wilson Memorial Off-road Vehicle Park opposite the junction of New Navy Base Rd. and Lincoln Ave. 6 Comment
  CAS-BOT-BC97246  Artemisia suksdorfii Doris K. Kildale 1926-8-12 2491 Humboldt Moonstone Beach Comment
  SEINET190493  Artemisia suksdorfii H. E. Parks May 1940 24178 Humboldt Little River Comment
  HSC55680  Aruncus dioicus var. acuminatus Overton, Butler 1979-7-26 9933 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  UC154045  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC453343  Aruncus dioicus var. vulgaris Volney Rattan 1878-6-16 s.n. Humboldt Mad River Comment
  HSC3265  Asarum caudatum H. E. Parks 1931-3-24 918 Humboldt Forest near Orick Comment
  HSC63149  Asarum caudatum M. A. Baker 1979-6-28 941 Humboldt Comment
  POM199456  Asarum caudatum H. E. Parks 1931-3-24 918 Humboldt Near Orick Comment
  RSA261553  Asarum caudatum Suzanne May 1967-4-15 21 Humboldt On Kneeland Road, 5 miles east of Bridgeville 244 Comment
  UC419051  Aspidotis densa J. P. Tracy and H. E. Parks 1930-9-15 763 Humboldt Kneeland; Bald Hills Comment
  RSA273373  Aspidotis densa Thomas W. Nelson, Jane Nelson 1976-7-1 2906 Humboldt North of Bear Creek 1463 Comment
  UCD137283  Aspidotis densa Frederic Hrusa 1993-6-17 11223 Humboldt Red mountain, at entrance gate to Red Mt. 900 Comment
  RSA246785  Aster chilensis R. F. Thorne, Percy C. Everett 1965-8-9 35336 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 Comment
  RSA167201  Aster chilensis Joseph P. Tracy 1950-10-7 19383 Humboldt Berry's Mtn, E of Redwood Creek, on Trinity Hwy 549 Comment
Read comments
Aug 15 2009
  SEINET196546  Aster chilensis Ynez Whilton Winblad 1941-6-24 Humboldt Between Garberville and Pepperwood. Comment
  HSC74723  Astragalus purshii Gail Newton 1981-7-23 2267 Humboldt Near Bug Creek Butte 1494 Comment
  JEPS54822  Astragalus pycnostachyus var. pycnostachyus W. L. Jepson 1902-8-4 2143 Humboldt Cape Mendocino to Petrolia (ocean shore); Ocean shore, Cape Mendocino to Petrolia Comment
  JEPS21028  Astragalus rattanii var. rattanii Joseph P. Tracy 1926-5-15 7486 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC100358  Astragalus umbraticus J. McRae 1996-7-25 Humboldt Orleans Ranger District, off F.S. Rd. 11N16-C at mile post 1. 707 Comment
  UC1197706  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
  RSA1509  Athyrium filix-femina subsp. cyclosorum E. R. Johnson 1929-08 1411 Humboldt Arcata Redwood Park 76 Comment
  POM182459  Athyrium filix-femina subsp. cyclosorum Joseph P. Tracy 1912-7-25 3814 Humboldt Along Black Creek, Kneeland Prairie 762 Comment
  RSA181910  Athyrium filix-femina subsp. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt Weott, hill above Comment
  UC1198298  Athysanus pusillus Joseph P. Tracy 1927-3-27 7848 Humboldt Trinity River Valley near the South Fork; North Coast Ranges, Trinity River Valley 182 Comment
  HSC59241  Avena fatua Terry Roth 1979-5-29 100 Humboldt Arcata, on Alliance Rd. near Westwood Ct. Comment
  CAS-BOT-BC98032  Baccharis pilularis Doris K. Kildale 1926-11-27 2845 Humboldt Alton Bluff 30 Comment
  RSA607468  Baccharis pilularis R. S. Woglum 1938-8-29 2029 Humboldt North Coast: Trinidad. Comment
  UC169039  Baccharis pilularis Joseph P. Tracy 1912-10-20 4003 Humboldt Alton 30 Comment
  UC204752  Baccharis pilularis Joseph P. Tracy 1918-9-29 5107 Humboldt 4 mi above mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC30349  Baccharis pilularis C. C. Marshall 1888-1-1 Humboldt Arcata Comment
  HSC29875  Baccharis pilularis subsp. consanguinea Thomas W. Nelson 1971-11-11 601 Humboldt Foot of Murray Rd., McKinleyville. Comment
  HSC5114  Baccharis pilularis subsp. consanguinea D. E. Anderson 1961-8-25 1756 Humboldt 1.5 miles S of Trinidad. overlooking beach Comment
  HSC32147  Barbarea orthoceras D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5611 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC184173  Barbarea orthoceras Joseph P. Tracy 1913-6-14 4119 Humboldt Dinsmore's Ranch; in Valley of Van Duzen River opposite Buck Mountain 762 Comment
  HSC26745  Barbarea verna Thomas W. Nelson 1973-6-20 Humboldt Bayside Cutoff Comment
  HSC5185  Bellis perennis W. F. Nickle 1965-3-13 Humboldt N Arcata near Park Plaza Apts. Comment
  CAS-BOT-BC48159  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3410 Humboldt Bald Mountain ridge - in bog, edge of forest at High Prairie, on long high ridge between Mad River and Redwood Creek 1066 Comment
  HSC53890  Bensoniella oregona Griswold, Butler 1979-7-11 6384 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UC1222393  Bensoniella oregona Joseph P. Tracy 1951-6-14 19416 Humboldt e side Snow Camp Meadows; e side of Snow Camp Meadows Comment
  HSC73147  Berberis aquifolium M. A. Baker 1980-5-18 1307 Humboldt Near Black Mtn. 1006 Comment
  HSC40904  Berberis aquifolium var. aquifolium J. O. Sawyer 1970-4-24 2192 Humboldt Along FS Rd. 7N04 at Cedar Creek below Groves Prairie Comment
  HSC31569  Berberis nervosa Glenn McGourty 1974-5-11 39 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  CAS-BOT-BC75801  Berberis pinnata Doris K. Kildale 1928-4-29 5971 Humboldt Horse Mountain. Comment
  RSA24106  Berberis pinnata C. B. Wolf 1941-3-2 9989 Humboldt N. Coast Range. Bull Creek-Petrolia Road. 1/4 mi. s. of Panther Gap. 549 Comment
  HSC55066  Bistorta bistortoides G. L. Clifton, Griswold 1979-7-31 11638 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC75951  Bistorta bistortoides Overton, Butler 1979-7-24 9737 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC62521  Blechnum spicant Marshall A. Howe 1896-5-30 Humboldt Eureka Comment
  CAS-BOT-BC15786  Boechera acutina Thomas Nelson 1979-7-11 5028 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit. Comment
  UC552303  Boechera subpinnatifida Joseph P. Tracy 1933-7-25 12878 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC69759  Bolboschoenus robustus Thomas W. Nelson 1977-9-22 3748 Humboldt E side of SR 101 just N of the Eureka Airport 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
  HSC97981  Boykinia major Cara Witte 2007-7-11 487 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  SDSU9503  Boykinia occidentalis Harvey 1938-8-13 2263 Humboldt Near Arcata. 85 Comment
  BLMAR241  Boykinia occidentalis Jennifer Anthony-Wheeler 1997-6-13 241 Humboldt King range, growing at base of N bank of S fork bear creekbed 463 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-BC420264  Boykinia occidentalis L. B. Kildale 1930-6-1 9746 Humboldt Klamath River at Weitchpec Comment
  UC303172  Boykinia occidentalis H. E. Parks and Joseph P. Tracy 1924-8-10 6804 Humboldt Van Duzen River near Strongs Station; Northern Coast Ranges, Van Duzen River 60 Comment
  SEINET12012990  Brassica juncea M. A. Lane 1990-3-20 3296 Humboldt below US 101 & above Benbow Drive to Benbow Lake State Recreation Area Comment
  HSC6591  Brassica rapa Jerry Parker 1968-11-11 234 Humboldt NW corner of Murray Rd. and Central Ave., Mckinleyville Comment
  CAS-BOT-BC106287  Brickellia californica Joseph P. Tracy 1934-9-30 13681 Humboldt Bridgeville, on river bar 198 Comment
  CAS-BOT-BC106294  Brickellia californica S. K. Harris; Mrs. C. M. Wilder 1938-9-8 877 Humboldt Bars on Van Duzen River, below Blue Slide Comment
  HSC25983  Brickellia californica Thomas W. Nelson 1970-9-3 232 Humboldt Mad River. Comment
  CDA1775  Briza maxima T. C. Fuller 1966-5-24 14710 Humboldt 2 miles north of Trinidad. 0 Comment
  RSA86704  Briza maxima Joseph P. Tracy 1930-6-15 8758 Humboldt Alder Point Comment
  BLMAR52  Briza maxima Brad Barr June, 1982 52 Humboldt King range, Etters cabin Comment
  HSC9087  Briza maxima T. M. Mingo May 1965 Humboldt 0.25 mi. N of intersection of Fairhaven Dr. and old Hwy. 101 Comment
  SEINET10468010  Briza maxima Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2503 Humboldt Collected in the vicinity of a state park on the beach opposite McKinleyville. Vast colony of yellow Lupinus arboreus. 3 Comment
  HSC104034  Briza minor E. R. Fyer 2015-4-26 25 Humboldt Eureka; vacant lot off Waterfront Drive 3 Comment
  SEINET4182983 Image available Briza minor Franklin Fitz Humboldt Backyard weed patch in Arcata Comment
  SEINET12053182  Brodiaea coronaria L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six River National Forest Comment
  SEINET3884856  Brodiaea elegans Jan G. Cooper 1976-8-2 6 Humboldt Along road to Horse Mountain Ski Area turnoff of Hwy 299.; 0 Comment
  JEPS7634  Brodiaea elegans subsp. elegans Milo S. Baker 1923-7-28 131 c Humboldt near camp on South Fork Yager Creek; North Coast Trip, South Fork Yager Creek Comment
  UC1222692  Brodiaea elegans subsp. elegans Joseph P. Tracy 1950-7-31 19234 Humboldt near Clear Lake; Grouse Mountain, Buck Prairie 1573 Comment
  UCD125575  Bromus Laurel Goldsmith 2012-11-1 s.n. Humboldt Near Arcata. Humboldt Bay National Wildlife Refuge. Lanphere Dunes Unit, just outside main office. 6800 Lanphere Road. 5 Comment
  SEINET3921829  Bromus carinatus Thomas Nelson, Jane P. Nelson 1976-7-26 3037 Humboldt Along ridge northwest of Lassic Peak (Signal peak).; 0 1707 Comment
  UCD58229  Bromus carinatus A. H. Murphy 1947-4-1 s.n. Humboldt Table Bluff. Ca. 1.5 miles N of Loleta. Comment
  UC1130988  Bromus carinatus var. carinatus H. S. Yates 1936-6-17 5708 Humboldt Lower nw slope of Buck Mountain Buck Mountain 792 Comment
  UC34028  Bromus carinatus var. carinatus Henry Melde 1902-2-8 Humboldt Eureka Comment
  UC37673  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  HSC102647  Bromus diandrus J. P. Smith 2009-5-31 12608 Humboldt Bald Hills Road. 713 Comment
  HSC102946  Bromus diandrus J. P. Smith 2009-5-30 12599 Humboldt Arcata. Near intersection of Valley West and Giuntoli Road Comment
  HSC37936  Bromus diandrus Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC9296  Bromus diandrus R. J. Vernimen 1963-3-25 16 Humboldt Clam Beach Lagoons, along railroad tracks Comment
  HSC102645  Bromus hordeaceus J. P. Smith 2009-5-31 12607 Humboldt Bald Hills Road. 713 Comment
  HSC103007  Bromus hordeaceus J. P. Smith 2014-5-23 13847 Humboldt Along the Hammond Trail north of Murray Road in McKinleyville 17 Comment
  HSC104041  Bromus hordeaceus C. Reynolds 2015-4-28 39 Humboldt Along trail through Arcata Marsh, near Interpretive Center 5 Comment
  HSC32487  Bromus hordeaceus Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide Comment
  HSC9247  Bromus hordeaceus J. R. Eichelberger 1964-5-13 80 Humboldt 1/4 mi. from U.S. 101 on the N side of the Mad River. Comment
  SEINET11682985  Bromus hordeaceus K. S. Erdman 1970-1 4784 Humboldt Doleson Hill Prairie, Bald Hills Rd SE of Orick Comment
  UC1145183  Bromus madritensis subsp. rubens Joseph P. Tracy 1948-6-13 18053 Humboldt Harris 762 Comment
  SEINET200827 Image available Bromus sterilis Joseph P. Tracy 1916-5-31 4698 Humboldt Along Eel River from South Fork to Scotia. Holmes Flat. Comment
  CAS-BOT-BC161533  Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Northern Coast Ranges. Larrabee Valley. 701 Comment
  SEINET200635 Image available Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Larrabee Valley. 701 Comment
  CAS-BOT-BC185522  Bromus vulgaris Harley P. Chandler 1901-5-1 1177 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  UCD60242  Bromus vulgaris A. H. Shunk 1923-7-12 s.n. Humboldt Briceland. Comment
  UCR93380  Buddleja davidii Kathy Harper, Dane Karr 1994-6-14 s.n. Humboldt North Coast Range, 11-12 mi. north of Willow Creek on State Hwy 96, c. 0.25 mi. north of 'vista point' along Trinity River 30 Comment
Read comments
Apr 27 2007
  UCD114943  Cakile maritima Linda M. Barker 1976-9-3 1694 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC36911  Cakile maritima var. maritima Kenneth Clark 1981-5-24 1395 Humboldt Shelter Cove. 300 yards west of Dead Man's gulch. 3 Comment
  RSA10021  Calamagrostis koelerioides Joseph P. Tracy 1933-8-30 13008 Humboldt Horse Mountain. In open Forest of Jeferey Pine 1372 Comment
  SBBG83771  Calamagrostis koelerioides J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  UCD57524  Calamagrostis nutkaensis Elizabeth Wilson 1940-7-12 s.n. Humboldt north of Eureka. Comment
  HSC100604  Calandrinia menziesii Carl C. Marshall Jun 1887 472 Humboldt Throughout Humboldt County. Comment
  HSC98087  Callitriche heterophylla var. bolanderi Cara Witte 2007-7-11 479 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  CAS-BOT-BC80385  Calocedrus decurrens Doris K. Kildale 1927-12-1 4203 Humboldt Klamath River at Orleans Comment
  HSC58124  Calocedrus decurrens G. L. Clifton, Griswold 1979-8-1 12108 Humboldt Near Horse Trail Ridge 1878 Comment
  HSC58323  Calocedrus decurrens Overton, Butler 1979-8-2 12620 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC76319  Calocedrus decurrens Denis Kearns 1981-7-6 60 Humboldt Near Mosquito Lake 1121 Comment
  OBI7411  Calocedrus decurrens H. E. McMinn July1922 278 Humboldt 1 mi E of Dinsmore Comment
  RSA0036651  Calocedrus decurrens Thomas Stoughton 2013-5-28 1760 Humboldt Ridge West of Red Lassic heading toward Signal Peak, northeast of Signal Peak. 1668 Comment
  RSA47092  Calocedrus decurrens Doris K. Kildale 1926-8-31 2606 Humboldt Union Mattole - Geo. H. Miner s Ranch, Mattole River Valley Comment
  RSA183584  Calochortus tolmiei D. E. Anderson 1965-5-15 3716 Humboldt Along Hw. 96, 1.9 miles north of Willow Creek. Comment
  UC1222549  Calochortus tolmiei Joseph P. Tracy 1951-5-6 19394 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  HSC55997  Caltha leptosepala Overton, Butler 1979-7-31 11439 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC273317  Calycadenia fremontii Henry M. Pollard 1945-8-21 s.n. Humboldt Orleans to Somes Bar Comment
  RSA381907  Calypso bulbosa Pearl Ryan 1917-6-1 s.n Humboldt Hoopa Comment
  HSC97493  Calypso bulbosa Cara Witte 2007-5-21 59 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 and National Forest 1. 1410 Comment
  SEINET12343669  Calystegia occidentalis L. K. Henry 1971-7-6 Humboldt Along Rt 36, 2 mi E of Dinsmore, in Six Rivers National Forest Comment
  UC1222150  Calystegia purpurata subsp. purpurata Joseph P. Tracy 1950-6-8 18769 Humboldt near Petrolia (2 mi down river, hills between town and Ocean); near Petrolia Comment
  HSC37769  Calystegia silvatica subsp. disjuncta Thomas W. Nelson 1976-8-10 3166 Humboldt Intersection of 11th and B St. in Arcata Comment
  SD42477  Calystegia soldanella Carl B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  CDA39887  Calystegia soldanella B. F. Kemp May 1958 1202 -58 Humboldt Mouth of Mad River. 0 Comment
  SEINET12330004  Calystegia soldanella F. H. Utech 1986-1 86 -402 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  UCSB4975  Calystegia soldanella Phillips, Priscilla 1958-6-7 Humboldt Dry Lagoon Park beach, near Trinidad Comment
  HSC74419  Camassia quamash subsp. linearis Gail Newton 1980-8-10 2041 Humboldt Near Blake Mountain. 1707 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
  HSC16448  Camissonia cheiranthifolia R. E. Hafenfeld 1965-5-9 26 Humboldt 1/2 mi. S of Squashan Creek near Gold Bluff Beach Rd. Comment
  HSC62912  Camissonia cheiranthifolia J. M. DiTomaso 1979-4-22 912 Humboldt Big Lagoon, 8 mi. N of Trinidad Comment
  NY679576  Camissonia cheiranthifolia subsp. cheiranthifolia L. Abrams 1916-7-18 6120 Humboldt Arcaba to Trinidad. Comment
  UC1196941  Camissonia contorta Joseph P. Tracy 1901-4-14 1028 Humboldt Samoa Northern Coast Region, Humboldt Bay Comment
  POM232035  Campanula prenanthoides I. L. Wiggins 1930-7-22 4690 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  SEINET10462962  Campanula prenanthoides Overton 1979-7-23 OVERTON 9491 Humboldt Near Titlow Hill, on the Willow Creek quad., close to the town of Willow Creek 1280 Comment
  UC416596  Campanula prenanthoides P. E. Goddard 1906-6 686 Humboldt Blocksburg Comment
  UC602534  Campanula prenanthoides Joseph P. Tracy 1934-8-23 13600 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  UC890509  Campanula prenanthoides Ira L. Wiggins 1930-7-22 4690 Humboldt along bank of Redwood Creek between Blue Lake and Willow Creek; Redwood Creek Comment
  SEINET10462968  Campanula prenanthoides James P. Smith 1977-7-3 Smith, Jr. 9236 Humboldt Six Rivers National Forest; on the road to Onion Lake, 4.7 miles from it junction with State Route 36. T10N R4E Sec. 11 610 Comment
  SEINET10462993  Campanula prenanthoides Chandler 1901-6-14 CHANDLER 1476 Humboldt Klamath River; Orleans to Somes Bar 305 Comment
  UC719785  Campanula prenanthoides Rogers McVaugh 1941-8-3 6214 Humboldt roadside bank 3.5 mi s Garberville Comment
  HSC35938  Campanula scouleri Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2031 Humboldt French Camp, Bald Hills. Comment
  HSC56388  Campanula scouleri Griswold, Butler 1979-7-11 6946 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UC1736612  Campanula scouleri Dean W. Taylor 1991-8-15 12279 Humboldt Snow Camp Lake 1310 Comment
Read comments
Apr 8 2012
  RSA456189  Campanula scouleri M. S. Baker 1947-8-10 11901 Humboldt 15 mi n.e. of Stoopa Pass. near end of forest road in Fir Forest. 1372 Comment
  SEINET10463476  Campanula scouleri Kildale 1937-7-18 KILDALE 15143 Humboldt HORSE MOUNTAIN Comment
  SEINET10463749  Campanula scouleri Tracy 1908-6-27 TRACY 2858 Humboldt Valley of Van Duzen River, opposite Buck Mountain, in woods. 762 Comment
  SEINET10463759  Campanula scouleri Joseph P. Tracy 1937-7-25 Tracy 15560 Humboldt Happy Camp Mountain; in Trinity Summit Range, northeast of Hawkins Bar, moist bank. 1280 Comment
  SEINET10463761  Campanula scouleri Tracy 1927-8-22 TRACY 8353 Humboldt High Prairie, on Bald Montain, in open woods. 1067 Comment
  HSC33178  Cardamine californica Thomas W. Nelson 1974-4-20 1184 Humboldt At Elk Head, N of Trinidad Comment
  HSC6699  Cardamine californica D. E. Anderson 1965-6-1 3766 Humboldt Horse Mountain. 1220 Comment
  UC183543  Cardamine californica Joseph P. Tracy 1913-3-9 4016 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UC249683  Cardamine californica Joseph P. Tracy 1921-3-20 5425 Humboldt 12 mi e Hydesville (Van Duzen River at Blue Slide); Northern Coast Ranges, Van Duzen River at Blue Slide 91 Comment
  UC519693  Cardamine californica Victor Duran 1933-5-11 3405 Humboldt near Bridgeville (Van Duzen River); , near Bridgeville Comment
  UC1199194  Cardamine nuttallii Joseph P. Tracy 1933-6-11 12665 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1371 Comment
  POM118630  Cardamine oligosperma Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  JEPS79828  Cardaria draba Joseph P. Tracy 1933-5-19 12201 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  CHSC107135  Carex abrupta R. E. Brainerd 2009-7-23 1568 Humboldt North Coast Range, South Fork Mountain; 19.6 miles west-northwest of Hayfork. UTM Zone 10 453477E 4494945N. 1661 Comment
  HSC76378  Carex aquatilis var. dives L. P. Janeway 1982-8-7 117 Humboldt Dry Lagoon, middle of lagoon 3 Comment
  POM160305  Carex arcta Joseph P. Tracy 1926-7-5 7723 Humboldt Near the Redwood House, on the road to head of Yager 610 Comment
  HSC98944  Carex athrostachya Cara Witte 2008-7-16 922 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  POM247170  Carex athrostachya Joseph P. Tracy 1934-7-18 13426 Humboldt Grouse Mountain. 1524 Comment
  RSA293074  Carex athrostachya Thomas W. Nelson, Jane P. Nelson 1978-7-3 4411 Humboldt On the McKeown Ranch along road to Anderson s Ford. 823 Comment
  CAS-BOT-BC19091  Carex aurea Joseph Prince Tracy; H. E. Parks 1931-5-9 9401 Humboldt Northern Coast Region. Vicinity of Trinidad. At Bishop Pine Lodge. 60 Comment
  CHSC47364  Carex bolanderi L. P. Janeway 1984-5-27 835 Humboldt Ca 1 mi E of Redway on Redwood Cr. 91 Comment
  CAS-BOT-BC19439  Carex bolanderi Doris K. Kildale 1927-6-25 3563 Humboldt Fearren's Ranch between Thorn [Whitethorn] and Shelter Cove. Comment
  HSC44056  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1977-7-1 3552 Humboldt Along Blanket Creek 1494 Comment
  JEPS79836  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt on ridge 2 mi sw of top of Salmon Summit; Salmon Summit 1767 Comment
  SEINET3900269  Carex breviligulata D. H. Norris 1971-7-17 19600 Humboldt Along Redwood House road about 3 miles west of intersection with Kneeland-Bridgeville road.; 0 Comment
  CAS-BOT-BC34277  Carex concinnoides Joseph Prince Tracy 1927-6-19 8190 Humboldt Northern Coast Range. Patrick's Point, in fern covered prairies on coast terraces. 60 Comment
  CHSC98363  Carex densa Thomas W. Nelson; Jane P. Nelson 1982-7-10 7086 Humboldt North Coast Ranges. Along Mad River at Anderson's Ford. 609 Comment
  HSC38078  Carex densa Thomas W. Nelson, James Nelson 1976-5-30 2629 Humboldt McKeown Ranch, N of Dinsmore. Comment
  RSA296773  Carex densa Thomas W. Nelson, James Nelson 1976-5-30 2629 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC303148  Carex densa Joseph P. Tracy 1925-5-30 7048 Humboldt McClellan Mountain Northern Coast RAnges 822 Comment
  UC562259  Carex densa Joseph P. Tracy 1928-6-17 8453 Humboldt Trinity River Valley, at Willow Creek Northern Coast Ranges 152 Comment
  UC1103104  Carex deweyana subsp. leptopoda Joseph P. Tracy 1920-5-18 5325 Humboldt 5 mi above Dyerville (South Fork); Eel River 152 Comment
  JEPS63725  Carex feta Joseph P. Tracy 1916-6-20 4734 Humboldt Dyke Ranch Northern Coast Ranges, Alder Point, Dyke Ranch 304 Comment
  CHSC85576  Carex fracta L. P. Janeway 2003-7-30 7942 Humboldt High North Coast Ranges. On northeast side of Titlow Hill Road, across form a small pond, on the map but un-named, 1.1 km south of Cold Spring. 1426 Comment
  SEINET11631099  Carex fracta J. P. Tracey 1950-1 18963 Humboldt "Fern Spring", Happy Camp Mountain (in Trinity Summit Range, 6 mi NE of Hawkins Bar) 1280 Comment
  UC1152081  Carex fracta Joseph P. Tracy 1950-7-2 18963 Humboldt 6 mi NE of Hawkins Bar (Fern Spring, Happy Camp Mountain); Trinity Summit Range 1280 Comment
  SEINET10752907  Carex globosa Joseph P. Tracy 1932-4-23 Tracy 9832 Humboldt Englewood. 91 Comment
  UC562640  Carex gracilior Joseph P. Tracy 1935-6-8 13940 Humboldt at Eureka Northern Coast Ranges 0 Comment
  UC1103591  Carex gynodynama Joseph P. Tracy 1938-6-11 15893 Humboldt Vicinity of Carlotta. Comment
  SEINET7561247 Image available Carex harfordii David Castaner 1989-6-19 10253 Humboldt Gold Bluff Beach at entrance. Comment
  SEINET7561248 Image available Carex harfordii David Castaner 1989-5-28 8067 Humboldt Patrick Point SP Area, Redwood Forest. Comment
  CAS-BOT-BC21018  Carex hendersonii C. V. Piper 1921-5-22 s.n. Humboldt Eureka. Comment
  JEPS79845  Carex hendersonii Joseph P. Tracy 1911-6-4 3230 Humboldt Northern Coast Region, along Little River, 5 mi from the Coast Little River; Northern Coast Region, Little River 121 Comment
  CHSC90288  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8579 B Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  HSC102204  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1119 Humboldt Patterson Meadows 1555 Comment
  JEPS25977  Carex integra Joseph P. Tracy 1935-7-23 14139 Humboldt at Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  JEPS79847  Carex jonesii Joseph P. Tracy 1932-7-15 10573 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC562266  Carex jonesii Joseph P. Tracy 1932-7-15 10572 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC28505  Carex lenticularis var. limnophila Carl B. Wolf 1927-8-22 788 Humboldt Big Lagoon Comment
  HSC61630  Carex lenticularis var. lipocarpa Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  CAS-BOT-BC31466  Carex leptopoda Joseph Prince Tracy 1935-6-8 13937 Humboldt Eureka. 60 Comment
  SEINET10710158  Carex leptopoda David Castaner 1984-5-28 Castaner 8066 Humboldt Patrick State Park. Redwood Forest area. Comment
  HSC102233  Carex luzulina M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1155 Humboldt Patterson Meadows 1555 Comment
  UC249752  Carex mendocinensis Joseph P. Tracy 1924-6-15 6697 Humboldt Northern Coast Ranges. Near Ruby Creek, on the Willow Creek highway. Comment
  SEINET4292167 Image available Carex microptera Unknown 2003-1 7920 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5km northeast of the top of Grouse Mountain. Comment
  CAS-BOT-BC32131  Carex multicaulis Joseph Prince Tracy 1927-3-27 7862 Humboldt Trinity River Valley, near the South Fork. 182 Comment
  UC709322  Carex multicostata Joseph P. Tracy 1939-7-9 16316 Humboldt 1 mi n Murphy Meadows; Bald Mt. 914 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
  CHSC40163  Carex nudata L. P. Janeway 1984-4-5 755 Humboldt Along the west edge of Trinity River near the Willow Creek airstrip. 137 Comment
  SEINET10711630  Carex nudata A. Arthur Heller 1923-7-10 Heller 13795 Humboldt Wet soil along the Eel River between Scotia and Pepperwood in the redwood belt. Comment
  SEINET7569469 Image available Carex obnupta David Castaner 1989-6-19 10249 Humboldt Fern Canyon. Comment
  CAS-BOT-BC119268  Carex ovalis Alice Eastwood; John Thomas Howell 1937-6-23 4790 Humboldt Near Dinsmore's Comment
  CAS-BOT-BC119264  Carex ovalis Joseph Prince Tracy 1939-7-9 16315 Humboldt Bald Mt. Abundant in ditch 1 mi N of Murphy Meadows. 914 Comment
  UC562641  Carex pachystachya Joseph P. Tracy 1935-6-8 13936 Humboldt Eureka Northern Coast Ranges 0 Comment
  CAS-BOT-BC119222  Carex pachystachya Harold Ernest Parks; Joseph Prince Tracy 1935-6-16 11271 Humboldt Buck Mt. Lower NW slope. 792 Comment
  HSC76793  Carex pachystachya L. P. Janeway 1982-6-20 17 Humboldt Along Titlow Hill Rd., 3 mi. from Hwy. 299 1220 Comment
  CAS-BOT-BC118823  Carex preslii Joseph Prince Tracy 1932-6-19 10242 Humboldt Dinsmore's Ranch: on Van Duzen River opposite Buck Mountain. 762 Comment
  HSC82401  Carex scopulorum var. bracteosa Thomas W. Nelson 1979-7-11 5013 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  JEPS25972  Carex subbracteata Joseph P. Tracy 1935-5-25 13885 Humboldt Dobbyn Creek 152 Comment
  RSA783710  Carex subbracteata P. F. Zika 2009-6-16 24500 Humboldt Outer North Coast Range: Above Route 299, 0.7 road mi W of Berry Summit. 780 Comment
  UC562655  Carex subbracteata Joseph P. Tracy 1935-5-24 13811 Humboldt Eureka Northern Coast Ranges 0 Comment
  CAS-BOT-BC116906  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-23 4822 Humboldt Bridgeville Comment
  SEINET10880003  Carex subfusca David Castaner 1989-5-28 Castaner 8067 Humboldt Patrick Point SP area. Redwood forest. Comment
  UC1103114  Carex tumulicola Joseph P. Tracy 1927-7-21 8288 Humboldt Carlotta Northern Caost Ranges 60 Comment
  UC1103081  Carex unilateralis Joseph P. Tracy 1938-6-15 15932 Humboldt Fortuna 30 Comment
  UC1152074  Carex unilateralis Joseph P. Tracy 1948-6-13 18034 Humboldt Larrabee Creek Road, halfway between Bridgeville and Blocksburg; Larrabee Valley 731 Comment
  UC1103607  Carex utriculata Joseph P. Tracy 1939-7-9 16322 Humboldt Lake Prairie Bald Mountain 1066 Comment
  UC1103615  Carex vesicaria var. major Joseph P. Tracy 1932-8-21 10368 Humboldt lower w foothills Chaparral Mountain (Three Cabins); North Coast Ranges 457 Comment
  UC1103617  Carex vesicaria var. major Joseph P. Tracy 1926-8-22 7769 Humboldt pond between Dinsmore's and Little Van Duzen; Northern Coast Ranges 762 Comment
  HSC7090  Carex viridula B. D. Rogers 1965-10-2 1017 Humboldt Big Lagoon 0 Comment
  UC1103605  Carex viridula var. viridula Joseph P. Tracy 1934-10-21 13693 Humboldt in front of South End Stone Lagoon (Dry Lagoon) 3 Comment
  JEPS25062  Castilleja affinis subsp. affinis Joseph P. Tracy 1942-7-1 17366 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); Van Duzen River 762 Comment
  JEPS21129  Castilleja affinis subsp. litoralis Myrtle Paulson 1918-4-28 Humboldt Eureka Comment
  JEPS35822  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 8968 Humboldt hills above and w Cape Mendocino (about 20 mi n by road of Petrolia) Comment
  UC275302  Castilleja ambigua subsp. ambigua R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  HSC32372  Castilleja ambigua subsp. humboldtiensis Linda M. Barker 1974-5-19 198 Humboldt S G St., Arcata 0 Comment
  HSC38444  Castilleja ambigua subsp. humboldtiensis J. P. Smith 1976-7-3 8934 Humboldt Just N of Samoa Bridge Comment
  HSC56005  Castilleja arachnoidea Overton, Butler 1979-7-31 11467 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC72482  Castilleja attenuata J. P. Smith, J. O. Sawyer 1973-5-12 6682 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  CHSC95387  Castilleja exserta C. Sander 2005-8-16 CA 330 -81 Humboldt Ecoregion 14. Humboldt County. Manila Dunes ACEC. 3 Comment
  HSC49514  Castilleja exserta subsp. latifolia R. York 1979-5-18 292 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  JEPS10344  Castilleja exserta subsp. latifolia Joseph P. Tracy 1938-7-12 16058 Humboldt Table Bluff, w of lighthouse Table Bluff 6 Comment
  JEPS76196  Castilleja exserta subsp. latifolia T. I. Chuang with Fei-Mei Chuang 1977-7-19 7625 Humboldt about 3 mi n Samoa; Manila Comment
  SEINET10582751  Castilleja wightii subsp. rubra Rimo Bacigalupi, Lawrence R. Heckard 1964-7-27 Bacigalupi 8962 Humboldt Shaded bend of road just (1/8 mile) above and east of Shelter Cove. On partly shaded n.-facing road bank. Comment
  UCR141621  Ceanothus arcuatus J. M. Tucker 1948-9-3 1852 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest) on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine 1463 Comment
  HSC55616  Ceanothus cordulatus Overton, Butler 1979-7-23 9511 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC78651  Ceanothus cordulatus D. K. Imper 1982-7-13 1485 Humboldt Near Chaparral Mtn. 1386 Comment
  UC668166  Ceanothus foliosus Joseph P. Tracy 1937-5-30 15314 Humboldt 3 mi s Bridgeville (by roadside.) 457 Comment
  JEPS82329  Ceanothus foliosus var. foliosus Roger Raiche 1983-7-18 30531 Humboldt King Peak Road, 2.4 mi N of road to Shelter Cove King Range 518 Comment
  CAS-BOT-BC63679  Ceanothus integerrimus L. B. Kildale 1927-7-3 3635 Humboldt Willow Creek Flat. 152 Comment
  HSC18311  Ceanothus parryi C. B. Wolf 1927-8-30 1245 Humboldt Ettersburg Comment
  HSC43186  Ceanothus pumilus R. Sutherland 1976-4-17 3 .17476 Humboldt 549 Comment
  HSC76582  Ceanothus pumilus Denis Kearns 1981-6-24 20 Humboldt Near Cedar Camp 1219 Comment
  CAS-BOT-BC52989  Ceanothus thyrsiflorus A. A. Heller 1923-7-9 13782 Humboldt On grassy slopes along the grade south of Eureka Comment
  HSC47489  Ceanothus thyrsiflorus Sheila Logan 1978-4-7 11 Humboldt 0.5 mi E of McKinleyville on Murray Rd. Comment
  HSC59634  Ceanothus thyrsiflorus J. P. Smith 1973-5-26 6867 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  RSA398934B  Ceanothus thyrsiflorus Bonnie C. Templeton 1964-6-13 10087 Humboldt Lighhouse Point, Trinidad Head. Comment
  UC1193281  Ceanothus thyrsiflorus K. Cuff 124 Humboldt 8 mi e Petrolia; Quad. 28A3 60 Comment
Read comments
Jul 25 2009
  UC726598  Ceanothus thyrsiflorus A. A. Heller 1923-7-9 13782 Humboldt between Eureka and Fortuna; between Eureka and Fortuna Comment
  UCSC000467  Ceanothus thyrsiflorus A. E. Wieslander 1931-5-21 209 Humboldt China Flat, Kneeland Comment
  BLMAR198  Ceanothus velutinus Donald Hazlett 1994-6-7 198 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  LA26771  Ceanothus velutinus S. K. Harris; 1942-6-12 1257 Humboldt Fickle Hill Rd., 5 mi. N and 2 mi. E of Boynton Prairie 630.0 Comment
  POM89164  Ceanothus velutinus Joseph P. Tracy 1919-9-24 5295 Humboldt Trinity Summit 1829 Comment
  CDA36344  Centaurea jacea Domenic Bongio 2011-11-15 PDR# 1414345 Humboldt Trinidad; Hwy 101 at mile-maker 104.05 near Patrick s Point Dr. 0 Comment
  CDA7310  Centaurea pratensis E. C. Whitney 1966-8-12 Humboldt Holmes Flat. Miller property. 0 Comment
  UC1225819  Centaurium muehlenbergii Joseph P. Tracy 1948-9-20 18217 Humboldt Hoopa Valley 91 Comment
  UC1198613  Centunculus minimus J. P. Tracy 1905-5-21 2182 Humboldt immediate vicinity of Eureka 0 Comment
  HSC58133  Cerastium arvense Gilbert Muth 1979-8-1 12138 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC8223  Cerastium arvense H. N. Bolander 1867-1 6520 Humboldt E. Fork Eel R. Comment
  CAS-BOT-BC384997  Cerastium fontanum Joseph P. Tracy 1907-5-20 2561 Humboldt Northern Coast Region. At Eureka 60 Comment
  HSC98768  Cerastium fontanum subsp. vulgare Cara Witte 2007-8-8 621 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  HSC12705  Cerastium glomeratum Jana Kattenhorn 1970-10-28 151 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  UC1198315  Cerastium glomeratum Joseph P. Tracy 1913-6-14 4123 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R. Valley, Dinsmore's Ranch 762 Comment
  UC1198317  Cerastium glomeratum Joseph P. Tracy 1934-3-11 13150 Humboldt Weitchpec 121 Comment
  HSC4103  Cerastium glomeratum S. R. Johnson 1965-4-16 43 Humboldt 1.5 mi. N of Luffenholtz Beach. Comment
  HSC41288  Chamaecyparis lawsoniana Brad Klipfel 1974-7-27 482 Humboldt Horse Mtn., along Ruby Creek Comment
  JEPS52363  Chamaesyce serpyllifolia Joseph P. Tracy 1928-9-16 6555 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley Comment
  CAS-BOT-BC166039  Chamerion angustifolium subsp. circumvagum Clarence R. Quick 1959-7-24 59 -30 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC26872  Chamerion angustifolium subsp. circumvagum Clifton Raymond Chesbrough 1973-6-19 97 Humboldt 1/2 mi. N of College Cove along the coast Comment
  HSC59666  Chamerion angustifolium subsp. circumvagum George Kirn 1977-9-4 Humboldt 3 mi. E of Eureka on Myrtle Ave. 11 Comment
  HSC996  Cheilanthes gracillima D. E. Anderson 1965-4-24 3539 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  UC132200  Chenopodium album Joseph P. Tracy 1905-10-1 2394 Humboldt near mouth of Elk River; Northern Coast Range, region about Humboldt Bay 0 Comment
  UC55948  Chenopodium album J. P. Tracy 1903-8-4 1927 Humboldt Immediate vicinity of Eureka 0 Comment
  CDA3058  Chenopodium ambrosioides B. F. Kemp 1957-11-8 511 -57 Humboldt Orrick. 0 Comment
  CDA3059  Chenopodium ambrosioides B. F. Kemp 1957-11-8 511 -57 Humboldt Orrick. 0 Comment
  RSA44501  Chenopodium botrys H. M. Pollard 1947-8-31 s.n. Humboldt Klamath River near Wilson Creek, Orleans region. Comment
  HSC54858  Chimaphila menziesii G. L. Clifton, Griswold 1979-7-25 10754 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC71674  Chimaphila menziesii M. A. Baker 1980-6-26 2390 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC451387  Chimaphila menziesii T. Worley; M. Mill; F. Rosenthal 1985-5-10 56 Humboldt Horse Mountain Rd., approx. 8 miles S of Hwy. 299 1143 Comment
  HSC33063  Chimaphila umbellata Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1251 Humboldt Horse Mtn. area, W of microwave tower 1220 Comment
  UC1197599  Chimaphila umbellata Joseph P. Tracy 1934-8-29 13634 Humboldt forest near McKay Camp (S. Fork Mt.); Northern Coast Ranges, S. Fork Mt. 1676 Comment
  HSC97991  Chimaphila umbellata subsp. occidentalis Cara Witte 2007-7-8 446 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  UCD138429  Chlorogalum pomeridianum Joseph P. Tracy 1946-7-7 17611 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  UC14998  Chlorogalum pomeridianum var. pomeridianum P. E. Goddard 1901-7 44 Humboldt Hupa Valley Comment
  UC1197669  Chlorogalum pomeridianum var. pomeridianum Joseph P. Tracy 1912-7-4 3726 Humboldt hillside near mouth of Yager Creek (near Hydesville); Northern Coast Region 60 Comment
  POM92409  Chrysanthemum leucanthemum L. R. Abrams 1922-6-25 8236 Humboldt 2 miles south of Fortuna Comment
  HSC8061  Chrysolepis chrysophylla Doris K. Kildale 1926-8-22 2570 Humboldt Bald Hills, beyond E end of cabin at Tomlinson's 716 Comment
  UC667996  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1936-8-7 15117 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  RSA170226  Chrysosplenium glechomifolium Joseph P. Tracy 1918-4-28 4888 Humboldt At Eureka 0 Comment
  UC164825  Cichorium intybus Joseph P. Tracy 1907-6-20 2572 Humboldt Northern Coast Region; vicinity of Eureka Comment
  HSC30333  Cicuta douglasii Dale R. Gradek 1974-5-29 89 Humboldt SE end of Big Lagoon County Park 3 Comment
  HSC36303  Cicuta douglasii C. Cornish 1973-10-10 1 Humboldt Shore of Freshwater Lagoon Comment
  UC154050  Cicuta douglasii Joseph P. Tracy 1907-7-20 2597 Humboldt Region about Humboldt Bay, Northern Coast Region Humboldt Bay; Northern Coast Region, Humboldt Bay 0 Comment
  HSC38627  Circaea alpina subsp. pacifica D. E. Anderson, J. P. Smith 1971-6-18 - 1101 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake Comment
  HSC53929  Circaea alpina subsp. pacifica Griswold, Butler 1979-7-11 6944 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UC562518  Circaea alpina subsp. pacifica Joseph P. Tracy 1936-8-7 15088 Humboldt head of Little Hors-Linto Creek (Trinity Summit); Trinity Summit 1371 Comment
  UC144064  Circaea alpina subsp. pacifica Joseph P. Tracy Jun 27 1908-Jun 30 1908 2716 Humboldt opposite Buck Mt. (Van Duzen R. Valley); Northern Coast Ranges, Van Duzen R. Valley 762 Comment
  CAS-BOT-BC284409  Cirsium arvense John Thomas Howell 1931-6-17 6724 Humboldt 1 1/2 miles n. of Orick, Redwood Highway Comment
  CAS-BOT-BC284441  Cirsium brevistylum L. R. Abrams 1927-9-1 12062 Humboldt Big Lagoon Comment
  JEPS23566  Cirsium brevistylum Peter H. Raven, R. Snow 1958-7-20 13648 Humboldt 0.7 mi s U.S. Highway 299 (along Titlow Hill Road); Titlow Hill Road Comment
  BLMAR404  Cirsium douglasii var. breweri Clara Sander 2005-7-1 404 Humboldt Horse Mtn, Titlow hill road: growing along the roak banks 1066 Comment
  SEINET200852  Cirsium edule J. C. Fario Jr 1940-6-14 sn Humboldt Bear River Ridge 610 Comment
  UC129598  Cirsium occidentale var. candidissimum Mrs. M. H. Manning Jul 20 1901-Jul 30 1901 Humboldt near Hupa; Bald Hill Comment
  UCD148530  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt near Berry Summit on Titlow Hill Road, 3.9 miles south of Highway 229. Comment
  JEPS2530 Image available Cirsium remotifolium var. odontolepis Jos. P. Tracy 1908-7-22 2909 Humboldt near Low Gap (ridge below Van Duzen and Mad rivers); ; Below Van Duzen & Mad Rivers, near Low Gap, Humboldt & Trinity Cos. 914 Comment
  SBBG65940  Cirsium vulgare R. Hartwell 1938-8-3 103 Humboldt near Weott Comment
  HSC75274  Cirsium vulgare J. O. Sawyer, D. A. Thornburgh 1980-9-9 4081 Humboldt Mill Creek Lake and surrounding meadows Comment
  LA47439  Clarkia gracilis subsp. gracilis Joseph P. Tracy; 1913-6-23 4284 Humboldt Dinsmore's Ranch, near summit of ridge between Van Duzen and Mad Rivers 1066 Comment
  UC144093  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1908-6 2680 Humboldt near Little Van Duzen bridge (nw slope of mountain); Northern Coast Ranges, Buck Mountain 609 Comment
  BLMAR7  Clarkia gracilis subsp. tracyi Fredric Hrusa 1993-6-17 7 Humboldt Red mountain, small colony summit of rd thru serpentine.Uncommon 900 Comment
  CAS-BOT-BC172503  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1926-6-9 2141 Humboldt Horse Mountain 1219 Comment
  CAS-BOT-BC172512  Clarkia purpurea subsp. quadrivulnera Mrs. H. C. Cantelow 1940-7-6 4034 Humboldt Near Dinsmore's Comment
  UC1196978  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1937-7-5 15372 Humboldt Willow Creek Trinity River Valley 152 Comment
  POM72745  Clarkia purpurea subsp. viminea P. A. Munz 1925-6-20 9887 Humboldt Garberville Comment
  JEPS1957 Image available Clarkia purpurea subsp. viminea W. L. Jepson 1902-8-13 1971 Humboldt near Redwood Creek; Hupa Road; Hupa Road, near Redwood Creek, Humboldt Co. Comment
  RSA108220  Clarkia purpurea subsp. viminea Harlan Lewis, M. Lewis 1947-6-14 422 Humboldt Highway 36 at south fork of Van Duzen River Bridge (4-119) Comment
  RSA297004  Clarkia purpurea subsp. viminea Lincoln Constance 1934-5-23 619 Humboldt South Fork Eel River: upper end of Look Prairie 366 Comment
  UC183596  Claytonia exigua subsp. glauca Joseph P. Tracy 1913-5-4 4049 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC17692  Claytonia perfoliata R. van Weemen van Noord 1966-3-26 6 Humboldt N end of Samoa Drag Strip 6 Comment
  CAS-BOT-BC439933  Claytonia perfoliata subsp. mexicana Doris K. Kildale 1926-3-21 1583 Humboldt Kneeland Prairie - summit 853 Comment
  UCD100844  Claytonia rubra subsp. depressa Linda M. Barker 1976-2-22 1316 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC65469  Claytonia saxosa M. A. Baker 1980-6-8 1918 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC443893  Claytonia sibirica Carl B. Wolf 1927-8-22 799 Humboldt Big Lagoon Comment
  HSC54539  Claytonia sibirica Overton, Butler 1979-7-23 9515 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC98695  Claytonia sibirica C. Witte 2007-5-21 53 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 with National Forest 1. 1394 Comment
  UC1223244  Claytonia sibirica Joseph P. Tracy 1951-6-21 19521 Humboldt Hydesville; back of Everett Beck's house Comment
  UCD15453  Claytonia sibirica Collector Unknown 1974-1-6 136 Humboldt California, Humbolt Co.; Patricks Pt. State Park along Hwy 101, along trail to Agate Beach; 3 Comment
  HSC95091  Clinopodium douglasii Andrea Pickart 2002-6-30 134 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 30 Comment
  CAS-BOT-BC499337  Clintonia andrewsiana Mrytle Paulson 1918-4-28 s. n. Humboldt Eureka Comment
  UC1197663  Clintonia andrewsiana Joseph P. Tracy 1901-8-1 1238 Humboldt e of Rohnerville 152 Comment
  POM260783  Clintonia uniflora H. C. Cantelow 1939-6-5 s.n. Humboldt Van Duzen River, 1.5 miles from Dinsmore. Comment
  HSC70391  Collinsia grandiflora Gail Newton 1980-6-7 120 Humboldt Near Brush Mtn. 1128 Comment
  UC1196765  Collinsia grandiflora Joseph P. Tracy 1922-5-29 6077 Humboldt South Yager Creek Valley; North Coast Ranges; South Yager Creek Valley 762 Comment
  UC1196749  Collinsia heterophylla Joseph P. Tracy 1948-6-13 18049 Humboldt near Harris 609 Comment
  HSC97222  Collinsia linearis Kiera A. Freeman, Heather J. Perry 2007-6-11 3 Humboldt 14.1 mi. S of Hwy. 299 on NF1 1372 Comment
  HSC102110  Collinsia parviflora M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1013 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC97483  Collinsia parviflora C. Witte 2007-5-10 18 Humboldt Along National Forest 1, near Kinsey Ridge. .2 miles south of intersection with 5N04. 1451 Comment
  UC1196841  Collinsia rattanii Joseph P. Tracy 1929-7-4 8628 Humboldt French Camp Ridge 1066 Comment
  UC55956  Collinsia rattanii J. P. Tracy 1902-6-3 1665 Humboldt Ridge between Eel River and South Fork, near Hubbard's Station Eel River; Ridge between Eel River and South Fork 609 Comment
  POM20818  Collinsia sparsiflora var. bruceae Joseph P. Tracy 1916-5-2 4685 Humboldt Garden grown, at Eureka, from seed, my #4242 from lower slopes of Buck Mountain. 762 Comment
  HSC56220  Collomia grandiflora G. L. Clifton, Griswold 1979-8-2 12247 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC32261  Collomia heterophylla J. O. Sawyer 1970-6-24 2250 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  RSA409229  Collomia heterophylla M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale, 8 mi north of Garberville Comment
  UC1197837  Collomia heterophylla Joseph P. Tracy 1947-7-5 17791 Humboldt ridge top one mi w Mud Springs; Trinity Summit 1158 Comment
  POM278763  Collomia heterophylla Lyman Benson 1928-7-12 475 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  UC1197846  Collomia heterophylla Joseph P. Tracy 1906-5-6 2442 1/2 Humboldt near Hydesville; Northern Coast Region, Wolverton Gulch 60 Comment
  UC133645  Collomia heterophylla Joseph P. Tracy 1909-7-31 3046 Humboldt on gravelly hillside Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC55602  Collomia tinctoria Overton, Butler 1979-7-23 9424 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  JEPS26243  Collomia tracyi Joseph P. Tracy 1940-7-7 16670 Humboldt on rocky banks Grouse Mt. 1463 Comment
  HSC5500  Conyza canadensis Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  HSC73752  Corallorhiza mertensiana M. A. Baker 1980-7-15 2933 Humboldt Near Whiting Ridge 1341 Comment
  UC275531  Corallorhiza mertensiana Joseph P. Tracy 1923-6-22 6347 Humboldt Bald Mt. Northern Coast Ranges 914 Comment
  POM319325  Cordylanthus maritimus subsp. palustris Patricia Wilder 1968-8-21 4413 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  UC1223038  Corethrogyne filaginifolia Joseph P. Tracy 1948-8-22 18106 A Humboldt 5 mi e of town old Strong's District School House; Carlotta 60 Comment
  CAS-BOT-BC212016  Cornus nuttallii Doris K. Kildale 1926-4-6 1719 Humboldt Dobbyn Creek, near mouth Comment
  HSC44069  Cornus nuttallii Thomas W. Nelson, Jane P. Nelson 1977-7-1 3560 Humboldt Along Blanket Creek tributary. 1463 Comment
  HSC65074  Cornus nuttallii J. P. Smith, Steve Selva 1970-6-14 3853 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UCSB24633  Cornus nuttallii Jensen, Karen 1965-4-15 Humboldt 1 km. west of Hwy. 101 by Miranda turnoff 91 Comment
  CAS-BOT-BC212176  Cornus sericea Thomas Nelson 1977-6-3 3385 Humboldt Mad River at south end of Mad River Bridge, North Coast Range 53 Comment
  UC1051594  Cornus sericea subsp. sericea Joseph P. Tracy 1948-9-2 18201 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  HSC70754  Cornus sessilis R. York 1980-5-17 529 Humboldt Near Le Perron Peak. 415 Comment
  HSC38648  Coronopus didymus J. P. Smith 1970-11-18 4629 Humboldt HSU campus Comment
  UC1197932  Corylus californica Joseph P. Tracy 1923-8-19 6538 Humboldt Lawrence Creek near Kneeland Prairie Comment
  UC1225941  Corylus californica Joseph P. Tracy 1946-8-25 17641 Humboldt Table Bluff, on Hookton road 9 Comment
  UC535724  Corylus californica Eleanor Armstrong 1934-8-23 1137 Humboldt Richardson Grove, E slope 121 Comment
  BLMAR230  Corylus cornuta subsp. californica Jennifer Anthony-Wheeler 1996-9-26 230 Humboldt King range, growing alng Bear creek between Wailaka & Nadelos campgrounds 548 Comment
  RSA152313  Corylus cornuta var. californica Joseph P. Tracy 1946-8-25 17639 Humboldt Table Bluff, along Hookton road. 9 Comment
  CAS-BOT-BC176451  Cotoneaster simonsii Peter F. Zika 2007-7-19 23174 Humboldt Hookton Road, S end of Humboldt Bay, (NCo, North Coast) 10 Comment
  RSA34307  Cotula australis C. Kistner 1935-5-15 s.n. Humboldt Arcata Bottom. Comment
  UCSB9478  Cotula coronopifolia Parks, H. 1941-09 Humboldt Little River State Park Comment
  RSA246787  Cotula coronopifolia R. F. Thorne, Percy C. Everett 1965-8-8 35272 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  SFV18508  Cotula coronopifolia D. Graydon 2002-5-7 40 Humboldt Arcata. Path to McDaniel Slough. Along path to the Humboldt Bay. Comment
  HSC97308  Crataegus suksdorfii M. Mesler 2006-6-6 610 Humboldt Big Hill Rd. 11.4 mi. E of Hwy. 96 at Six Rivers Forest boundary 1463 Comment
  HSC57662  Crepis acuminata G. L. Clifton, Griswold 1979-7-25 10838 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  POM264599  Crepis capillaris C. R. Parks 1941-08 24189 Humboldt Roadsides and fields, vicinity of Trinidad Comment
  UC302296  Crepis pleurocarpa Joseph P. Tracy 1926-6-20 7621 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC42455  Crepis pleurocarpa Barbara Kelly 1977-7-16 540 Humboldt On Horse Mtn. Rd., 1/2 mi. below where it forks; 1.5 mi. below summit 1402 Comment
  HSC44131  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1977-7-4 3599 Humboldt Along old trail N of Alder Spring 1555 Comment
  UCD130982  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek. 152 Comment
  UC1222277  Cryptantha affinis Joseph P. Tracy 1950-7-1 18956 Humboldt Friday Ridge Comment
  UC1239664  Cryptantha leiocarpa Joseph P. Tracy 1904-7-4 2112 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  UC1222272  Cryptantha milobakeri Joseph P. Tracy 1949-8-11 18469 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek, electric power line southward); Kinsey Ridge 1280 Comment
  UC175496  Cryptantha torreyana Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5730 Humboldt Supply Creek North Coast Ranges, Hupa Valley Comment
  UC179963  Cryptantha torreyana Joseph P. Tracy 1914-7-5 4560 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC162944  Cupressus lawsoniana Joseph P. Tracy 1911-7-6 3341 Humboldt mountain slopes along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UCSB24335  Cuscuta californica Tracy, Joseph 1930-7-16 Humboldt South Fork Mountain; openings in fir forest near McKay Camp 1676 Comment
  UCR146428  Cuscuta californica var. breviflora R. F. Thorne, Percy C. Everett 1965-8-7 35226 Humboldt Northwestern; Outer North Coastal Ranges region, Samoa Peninsula 3 Comment
  JEPS94283  Cuscuta campestris Vernon Oswald and Lowell Ahart 1997-9-4 8847 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
  UC604649  Cuscuta campestris Joseph P. Tracy 1938-8-28 16138 Humboldt Stone Lagoon Beach 6 Comment
  UC902072  Cuscuta occidentalis Joseph P. Tracy 1949-8-4 18429 Humboldt Box Camp Trinity Summit 1463 Comment
  UC1409175  Cuscuta salina var. major Robert F. Thorne and P. Everett 1965-8-8 35280 Humboldt e of Hwy. 101 (n edge of Eureka); Eureka 3 Comment
  HSC48477  Cynoglossum occidentale Brad Klipfel 1974-7-23 455 Humboldt Ridge running E of Horse Mtn. Comment
  UCD60123  Cynosurus cristatus L. T. Burcham 1956-7-19 341 Humboldt 1.5 miles northwest of Petrolia. 152 Comment
  CAS-BOT-BC190378  Cynosurus echinatus J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek. Comment
  HSC45219  Cynosurus echinatus M. Alcasas 1978-6-3 126 Humboldt Titlow Hill Rd., 0.3 mi. from Hwy. 299 869 Comment
  HSC23677  Cyperus eragrostis Tim Baroni 1971-7-5 91 Humboldt 8 mi. E of Petrolia Comment
  RSA275286  Cyperus eragrostis J. P. Smith, Advanced Plant Taxonomy Plant 1971-10-9 4990 Humboldt Mad River above the Fish Hatchery. Comment
  UCD54033  Cyperus eragrostis K. Esau 1934-5-6 s.n. Humboldt Fort Seward. 152 Comment
  UCD105685  Cytisus scoparius R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  SEINET2153799  Cytisus scoparius K. T. Harper 2002-1 2002 -3 Humboldt Redwood Park, near Orick. Comment
  RSA728072  Dactylis glomerata Gary D. Wallace 1979-7-24 1864 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  CAS-BOT-BC189736  Danthonia californica Joseph P. Tracy 1930-6-21 8772 Humboldt Northern Coast Ranges. Larrabee Valley. 701 Comment
  CAS-BOT-BC189746  Danthonia californica Doris K. Kildale 1928-7-1 5308 Humboldt French Camp - Bald Hills - Orick Martins Ferry road. Comment
  HSC45108  Danthonia californica R. Sutherland 1978-5-2 4 .2578 Humboldt 341 Comment
  HSC9552  Danthonia californica J. P. Tracy 1927-7-4 8234 Humboldt Lone-Star Creek, Iagua. 610 Comment
  CAS-BOT-BC420362  Darmera peltata Joseph P. Tracy 1933-6-7 12517 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC20252  Darmera peltata Jack Rockwell 1962-4-29 59 Humboldt E bank of Redwood Creek, near Hwy. 299 549 Comment
  JEPS49588  Darmera peltata Harley P. Chandler May 1901 1233 Humboldt Redwood Belt; North Coast Ranges 91 Comment
  RSA43886  Daucus carota H. M. Pollard 1948-8-7 s.n. Humboldt Near Orleans Comment
  HSC37850  Daucus pusillus Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay Comment
  JEPS15997  Daucus pusillus W. L. Jepson 1932-7-24 16387 Humboldt Mail Ridge Comment
  UC1197349  Daucus pusillus J. P. Tracy 1901-6-16 1145 Humboldt near Bucksport 0 Comment
  HSC33057  Delphinium decorum subsp. tracyi Thomas W. Nelson 1974-5-7 1236 Humboldt Beside Kneeland Rd. 0.5 mi. N of Kneeland School Comment
  HSC96953  Delphinium decorum subsp. tracyi Ryoko Ito, Shauna McDonald 2007-6-4 1 Humboldt Coldspring Camp, 7.4 mi. above Hwy. 299 off NF1 on USFS Rd. 5N27 1390 Comment
  HSC100614  Delphinium hesperium Carl C. Marshall Jun 1886 80 Humboldt Redwood region. Comment
  HSC100901  Delphinium menziesii Carl C. Marshall Apr 1887 380 Humboldt Hoopa Valley. Comment
  HSC24973  Delphinium menziesii Francis Winter 1960-5-6 Humboldt Little River State Park, N of Arcata Comment
  CAS-BOT-BC9952  Delphinium nudicaule Doris K. Kildale 1927-4-17 3104 Humboldt Briceland Bridge, 0.5 miles W of Garberville 114 Comment
  CAS-BOT-BC9958  Delphinium nudicaule N. Wynne; M. Peckham; J. Barnesberger 34 Humboldt Lord Elis Quad. West side of Titlow Road, 0.35 miles S of Hwy. 299 853 Comment
  HSC24426  Delphinium nudicaule E. C. Murczek 1964-4-4 28 Humboldt 10 mi. N of Hoopa Comment
  SEINET12099565  Delphinium nudicaule J. P. Tracy 1950-1 18815 Humboldt Mail Ridge, N of Harris 7 mi, "Huestis Rock" on NE side of Ridge Comment
  HSC32304  Delphinium nuttallianum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5650 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC48786  Delphinium trolliifolium Brad Klipfel 1975-6-17 661 Humboldt Along Titlow Hill Rd. Comment
  CAS-BOT-BC121963  Delphinium trolliifolium Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale on road to Cape Mendocino. Comment
  RSA18060  Deschampsia beringensis C. B. Wolf 1927-8-22 794 Humboldt Big Lagoon Comment
  UC1131487  Deschampsia cespitosa subsp. beringensis H. L. Person 1932-5-11 Humboldt near Arcata Arcata; Eureka Quad. Comment
  UC922025  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1937-8-12 15642 Humboldt Snow Camp 1402 Comment
  UCD61388  Deschampsia danthonioides Joseph P. Tracy 1950-6-25 18901 Humboldt On west side of Buck Mt., 3 miles S of Burn Valley. 1219 Comment
  HSC65115  Deschampsia elongata J. P. Smith 1973-5-26 6856 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC75453  Deschampsia elongata J. O. Sawyer 1980-7-18 3595 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA126941  Deschampsia elongata H. S. Yates 1936-6-17 5706 Humboldt Lower northwest slope of Buck Mountain 793 Comment
  UC552755  Deschampsia elongata Joseph P. Tracy 1934-7-18 13434 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  UC76979  Deschampsia elongata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5509 Humboldt near Camp Grant Comment
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May 17 2012
  HSC8359  Dicentra formosa J. Sandborg, F. Sandborg May 1968 9 Humboldt Bluff Creek near Notice Creek 793 Comment
  HSC26869  Dicentra formosa Clifton Raymond Chesbrough 1973-6-19 93 Humboldt 1/2 mi. N of College Cove Comment
  HSC8365  Dicentra formosa Francis Winter 1960-4-23 Humboldt 4 mi. N of Dollar Ranch, on Korbel-Maple Creek Rd. 244 Comment
  UC1021939  Dicentra formosa Rolf Y. Berg 1955-6-17 Humboldt n of Wiott (Highway 101, Avenue of the Giants) Comment
  CAS-BOT-BC402407  Dicentra formosa subsp. formosa L. R. Abrams; R. Bacigalupi 1922-6-25 8284 Humboldt Big Lagoon south of Orick Comment
  UC1116210  Dicentra uniflora Joseph P. Tracy 1942-6-23 17253 Humboldt near Water-dog Lakes (Trinity Summit); Trinity Summit 1828 Comment
  SEINET7293094 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1918-1 5014 Humboldt White North Valley 305 Comment
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Apr 22 2016
  UC15032  Dichelostemma capitatum J. Burtt Davy 1899-6-11 5430 Humboldt Hubbard's Station to Elk Prairie Comment
  UC176352  Dichelostemma capitatum Joseph P. Tracy 1913-6-13 4102 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northen Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC501017  Dichelostemma ida-maia Doris K. Kildale 1927-7-10 3735 Humboldt Gans Prairie - Bald Hills 457 Comment
  HSC3027  Dichelostemma ida-maia H. E. Parks, S. T. Parks Jun 1928 259 Humboldt Gills 305 Comment
  RSA21187  Dichelostemma ida-maia Carl B. Wolf 1937-8-11 9146 Humboldt North Coast Range, 3 mi W of little Van Duzen River at summit of grade - Dinsmore to Bridgeville. 762 Comment
  SEINET3885614  Dichelostemma ida-maia D. W. McNeal 1977-6-6 2045 Humboldt Dry shaded hillside above the Bridgeville-Kneeland Rd., 0.4 mi. N. of Hwy. #36.; 0 Comment
  UC1950249  Dichelostemma ida-maia Barbara Ertter with Thomas J. Delendick 1987-5-16 6918 Humboldt Vista Point just W of Berry Summit on Hwy 299, open grassy S-facing slope Comment
  HSC38524  Dichelostemma multiflorum D. E. Anderson, J. P. Smith 1971-6-18 - 1072 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  SEINET10533938  Dichelostemma pulchellum Botany 1985-4-20 BOTANY s.n. Humboldt T34m,r6e,sec.14. Burnt ranch campground off hwy 299. Open sunny site near black Oak-douglas fir habitat 433 Comment
  HSC20643  Digitalis purpurea Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  UC198616  Digitalis purpurea Joseph P. Tracy 1917-5-30 4790 Humboldt Dows Prairie; Northern Coast Ranges 60 Comment
  SD114041  Digitalis purpurea D. F. Howe 1961-8-1 3105 Humboldt 6.0 miles north of Trinidad on Highway 101. Comment
  CAS-BOT-BC150344  Diplacus aurantiacus C. C. Harris; S. K. Harris 1936-6-9 s.n. Humboldt Above Carlotta 60 Comment
  CHSC68508  Disporum smithii Vernon H. Oswald 1997-4-10 8325 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  UC1222543  Disporum smithii Joseph P. Tracy 1951-6-14 19418 Humboldt Snow Camp 1402 Comment
  UC30078  Disporum smithii Mrs. M. H. Manning 1901-4-1 12 Humboldt near Hupa Comment
  CAS-BOT-BC208658  Distichlis spicata Malcom A. Nobs; S. Galen Smith 1949-8-3 1178 Humboldt Salt marshes around Fields Landing Comment
  CAS-BOT-BC208660  Distichlis spicata Joseph P. Tracy 1933-8-22 12989 Humboldt Mouth of Eel River 3 Comment
  CAS-BOT-BC208661  Distichlis spicata Joseph P. Tracy 1933-8-22 12989 Humboldt Mouth of Eel River 3 Comment
  HSC26357  Distichlis spicata T. O. Osborne 1970-6-18 55 Humboldt Green Rock, 1-5/8 mi. N, 3/4 mi. W of Trinidad Lighthouse. Comment
  UC1198619  Dodecatheon hendersonii Joseph P. Tracy 1923-3-17 6165 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  UC562465  Dodecatheon hendersonii Joseph P. Tracy 1924-3-9 6612 Humboldt Kneeland Prairie 762 Comment
  JEPS14697  Dodecatheon jeffreyi Joseph P. Tracy 1932-7-17 10669 Humboldt ridges e Corral Prairie (Trinity Summit); , e of Corral Prairie 1828 Comment
  UC1046562  Dodecatheon jeffreyi R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3418 Humboldt ridge between Mad River and Redwood Creek (edge of meadow at Snow Camp, Bald Mountain); ridge btw Mad River and Redwood Creek, Bald Mt, Snow Camp 1432 Comment
  JEPS14476  Downingia cuspidata Joseph P. Tracy 1935-5-25 13843 Humboldt Fort Seward 106 Comment
  JEPS14451  Downingia elegans Joseph P. Tracy 1930-6-15 8739 Humboldt near Bosworth's; North Coast Ranges, Larrabee Creek 457 Comment
  RSA20854  Downingia yina C. B. Wolf 1937-6-18 8894 Humboldt 1/2 mile S of Fortuna. 15 Comment
  CAS-BOT-BC401535  Drosera rotundifolia Carl B. Wolf 1927-8-22 778 Humboldt Big Lagoon Comment
  RSA0011677  Drosera rotundifolia C. B. Wolf 1927-8-22 778 Humboldt Big Lagoon. Comment
  RSA0011678  Drosera rotundifolia R. F. Thorne, P. C. Everett 1965-8-7 35185 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  CAS-BOT-BC159617  Drymocallis glandulosa var. glandulosa Joseph P. Tracy 1935-5-25 13899 Humboldt Dobbyn Creek 152 Comment
  UC585623  Drymocallis glandulosa var. reflexa Joseph P. Tracy 1935-7-23 14164 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  RSA249311  Drymocallis glandulosa var. reflexa D. E. Anderson 1972-6-14 5618 Humboldt Mt. Lassic and 2 smaller peaks to immediate E. 1768 Comment
  HSC26394  Dudleya farinosa T. O. Osborne 1970-9-16 29 Humboldt Trinidad Bay, Prisoner Rock Comment
  CDA30189  Echinochloa crus-galli M. K. Beyers, I. Sheperdson 2009-9-13 239 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  UC1100621  Eleocharis acicularis Malcolm A. Nobs and S. Galen Smith 1949-8-9 1243 Humboldt town of Blue Lale Mad River (marshy pond on s side) Comment
  UC666918  Eleocharis macrostachya Joseph P. Tracy 1934-7-20 13464 Humboldt Big Lagoon, small farm on shore 3 Comment
  CAS-BOT-BC113113  Eleocharis obtusa Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  UC1103661  Eleocharis obtusa Joseph P. Tracy 1920-8-15 5365 Humboldt Klamath River at Bluff Creek Northern Coast Ranges Comment
  JEPS19323  Eleocharis pachycarpa Joseph P. Tracy 1926-7-25 7757 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  HSC25069  Eleocharis pachycarpa Rudolf W. Becking 1972-7-9 Humboldt Gold Bluff Beach, Prairie Creek State Park Comment
  POM313063  Eleocharis pachycarpa Malcolm A. Nobs, S. Galen Smith 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon Comment
  RSA10137  Elymus glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie, on Bald Mountain 1067 Comment
  RSA129277  Elymus glaucus Joseph P. Tracy 1935-7-21 14119 Humboldt mouth of Bremer Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1103478  Elymus glaucus Joseph P. Tracy 1936-6-10 14940 Humboldt near the South Fork; Trinity River Valley 304 Comment
  UC589939  Elymus glaucus H. S. Yates 1936-6-17 5695 Humboldt Buck Mountain South Fork Pk. Quadrangle (lower nw slope) 792 Comment
  UCR32176  Elymus glaucus David J. Keil 1983-7-1 17280 Humboldt North Coast Range, Bull Creek Flats Road, 2.5 mi. NE of Honeydew Comment
  UC1103200  Elymus glaucus Joseph P. Tracy 1950-8-20 19327 1/2 Humboldt near Slate Creek; Klamath River 121 Comment
  CAS-BOT-BC203474  Elymus glaucus subsp. glaucus Harold E. Parks; Joseph P. Tracy 1934-6-14 11026 Humboldt Horse Mt. 1371 Comment
  CAS-BOT-BC203478  Elymus glaucus subsp. glaucus L. R. Abrams 1922-6-25 8224 Humboldt 6 mi north of Garberville Comment
  UC526795  Elymus glaucus subsp. jepsonii Joseph P. Tracy 1933-8-6 12950 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  UCD62646  Elymus trachycaulus Thomas Nelson; Jane Nelson 1976-7-26 3023 Humboldt Trinity-Humboldt Co. line: Along 1S07 West of Black Lassic. 1615 Comment
  HSC33094  Empetrum nigrum J. P. Smith 1975-3-31 8048 Humboldt Megwill Point on Elk Head, just N of College Cove Comment
  CDA38060  Epilobium brachycarpum T. C. Fuller 1962-8-6 9361 Humboldt Near Hwy 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Rd., 1 miles west of Green Point School. 0 Comment
  UC505123  Epilobium campestre Joseph P. Tracy 1930-6-15 8743 Humboldt near Bosworth; Larrabee Creek 457 Comment
  CAS-BOT-BC166891  Epilobium canum subsp. latifolium Lester Rowntree 1937-8-15 s.n. Humboldt Maple Creek east of Eureka Comment
  HSC76621  Epilobium ciliatum subsp. ciliatum Teresa Prendusi 1981-5-7 117 Humboldt Near Slate Creek Butte 1158 Comment
  HSC43235  Epilobium ciliatum subsp. ciliatum R. Sutherland 1976-8-19 3 .19876 Humboldt 259 Comment
  HSC16349  Epilobium ciliatum subsp. watsonii W. F. Nickel 1965-5-8 Humboldt On HSU campus behind the Biological Science Building Comment
  HSC95397  Epilobium ciliatum subsp. watsonii Andrea Pickart 2002-7-9 171 Humboldt Bracut Marsh 0 Comment
  HSC78650  Epilobium minutum D. K. Imper 1982-7-13 1484 Humboldt Near Chaparral Mtn. 1386 Comment
  SEINET10632318  Epilobium oreganum Joseph P. Tracy 1933-7-25 Tracy 12835 Humboldt Grouse Mountain 1500 Comment
  UC666979  Epipactis gigantea Joseph P. Tracy 1927-7-4 8243 Humboldt Blue Slide Van Duzen River 91 Comment
  CAS-BOT-BC58003  Equisetum Doris K. Kildale 1925-8-18 1253 Humboldt McKay's Prarie - Trinity Summit. 1524 Comment
  JEPS60147  Equisetum arvense W. L. Jepson 1932-7-24 16378 Humboldt near Camp Grant (bank of main Eel River); Eel River 91 Comment
  HSC46006  Equisetum hyemale subsp. affine J. P. Smith 1971-10-9 4996 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC667933  Equisetum telmateia subsp. braunii Joseph P. Tracy 1937-6-26 15361 Humboldt at Willow Creek Willow Creek; Trinity River Valley 152 Comment
  HSC885  Equisetum telmateia subsp. braunii S. J. Hawks, D. E. Anderson 1965-5-18 80 Humboldt Luffenholtz Beach Comment
  SEINET200659 Image available Eragrostis hypnoides Joseph P. Tracy 1920-8-15 5367 Humboldt Klamath River mouth of Bluff Creek 152 Comment
  CAS-BOT-BC278517  Eragrostis pilosa var. pilosa Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  HSC39978  Erechtites glomeratus Linda M. Barker 1976-7-5 1634 Humboldt 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-BC131507  Ericameria arborescens H. E. McMinn 1922-8-3 476 Humboldt Mt. slope - above S.F., Eel River Comment
  JEPS19193  Ericameria greenei Joseph P. Tracy 1919-9-22 5273 Humboldt open places in Shasta fir belt; Trinity Summit 1889 Comment
  JEPS41418  Erigeron biolettii W. L. Jepson 1932-8-6 16493 Humboldt Garberville Comment
  UC1223139  Erigeron foliosus var. confinis Joseph P. Tracy 1950-8-8 19291 Humboldt area Granite Rock; Trinity Summit, Crogan Hole 1676 Comment
  CAS-BOT-BC296120  Erigeron foliosus var. confinis Alice Eastwood; John Thomas Howell 1937-6-26 5071 Humboldt Near Orleans Comment
  CAS-BOT-BC296121  Erigeron foliosus var. confinis Alice Eastwood; John Thomas Howell 1937-6-24 4870 Humboldt Gambi's Comment
  JEPS11982  Erigeron foliosus var. confinis Rimo Bacigalupi with G. T. Robbins 1954-6-28 4653 Humboldt 4.6 mi s Weitchpec, Hoopa Valley Indian Reservation (between Hoopa Valley and Weitchpec, along highway, high above Trinity River); Trinity River 167 Comment
  SBBG52999  Erigeron glaucus J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  CAS-BOT-BC308848  Erigeron glaucus Doris K. Kildale 1926-5-15 1975 Humboldt Fleener Creek Comment
  RSA246776  Erigeron glaucus R. F. Thorne, Percy C. Everett 1965-8-7 35220 Humboldt Samoa Peninsula. 3 Comment
  UC1223140  Erigeron glaucus Joseph P. Tracy 1948-6-10 18038 Humboldt w Trinidad 7 Comment
  HSC97980  Erigeron klamathensis Cara Witte 2007-7-8 448 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  CAS-BOT-BC214592  Erigeron philadelphicus Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet ranch Comment
  POM187853  Erigeron philadelphicus Marcus E. Jones 1931-7-12 29146 Humboldt Alton. Comment
  JEPS41379  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1932-7-1 16409 Humboldt Bull Creek 106 Comment
  JEPS41380  Erigeron philadelphicus var. philadelphicus Lincoln Constance 1934-5-26 685 Humboldt s end Dyerville Bridge; South Fork Eel River 45 Comment
  UC1199399  Erigeron strigosus var. septentrionalis Joseph P. Tracy 1918-6-23 4959 Humboldt Boynton Prairie Road near the Carroll Place (around Humboldt Bay); North Coast Ranges, Fickle Hill 304 Comment
  CAS-BOT-BC300279  Erigeron strigosus var. strigosus Henry M. Pollard 1948-7-18 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC224258  Eriodictyon californicum Henry M. Pollard 1945-9-1 s.n. Humboldt Road to Redcap Creek Comment
  HSC102097  Eriogonum compositum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1000 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC54216  Eriogonum compositum Griswold, Butler 1979-7-12 7274 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  SD38692  Eriogonum latifolium Edith A. Purer 1932-7-30 4669 Humboldt South of Orick, sand dunes Comment
  RSA273152  Eriogonum latifolium Glenn A. Gorelick 1967-6-11 s.n. Humboldt Samoa sand dunes, near Arcata Comment
  UC203954  Eriogonum latifolium Joseph P. Tracy 1918-7-1 4974 Humboldt 3 mi s Point of the Cape; Cape Mendocino 3 Comment
  SEINET195334  Eriogonum lobbii H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mtn 1524 Comment
  CAS-BOT-BC259537  Eriogonum luteolum var. luteolum Doris K. Kildale 1926-8-29 2594 Humboldt On Van Duzen River at Swimmer's Delight near Strong's Station Comment
  UC6566  Eriogonum luteolum var. luteolum C. C. Marshall 1888-1 Humboldt Comment
  HSC98531  Eriogonum nudum var. nudum Cara Witte 2007-7-8 445 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  RSA18610  Eriogonum nudum var. nudum Carl B. Wolf 1937-9-8 9300 Humboldt North Coast Range, Bull Creek- Petrolia Road, 11 miles west of redwood highway. 305 Comment
  RSA44500  Eriogonum nudum var. nudum H. M. Pollard 1947-8-22 s.n. Humboldt Klamath River bed near Fontana's Fishing Lodge, Orleans region Comment
  CAS-BOT-BC261722  Eriogonum nudum var. oblongifolium Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  CAS-BOT-BC269866  Eriogonum nudum var. pubiflorum Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  HSC43079  Eriogonum umbellatum var. argus Brad Klipfel 1973-7-31 224 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC672894  Eriogonum umbellatum var. argus Joseph P. Tracy 1935-7-23 14133 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC55393  Eriogonum umbellatum var. dumosum Harley P. Chandler June 1901 1495 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC55394  Eriogonum umbellatum var. dumosum P. E. Goddard 1901-7-10 55 Humboldt Hupa Comment
  HSC24386  Eriogonum umbellatum var. goodmanii J. O. Sawyer 1970-6-24 2211 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC98923  Eriogonum umbellatum var. goodmanii Cara Witte 2007-7-3 404 Humboldt Along National Forest 1 on Kinsey Ridge. 1299 Comment
  SEINET4856204  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U.S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 miles west of Hyampom. 1296 Comment
  UCR37846  Eriogonum umbellatum var. nelsoniorum Walter C. Overton, Marvin Butler 1979-7-26 9994 Humboldt North Coast Range, near Willow Creek, east fork, close to the town of Willow Creek 1341 Comment
  HSC43085  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-7-1 146 Humboldt N Trinity Mtn. 1860 Comment
  HSC55182  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-8-2 12202 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC58062  Eriophorum crinigerum G. L. Clifton, Griswold 1979-8-1 11939 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1692 Comment
  RSA249330  Eriophorum crinigerum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5566 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  CAS-BOT-BC298514  Eriophyllum confertiflorum Kenneth Clark 1979-6-30 461 Humboldt Shelter Cove. Dead Man's Gulch, on lower terraces 9 Comment
  CAS-BOT-BC301009  Eriophyllum lanatum var. achilleoides Harley P. Chandler 1901-5-1 1234 Humboldt North Coast Ranges. Humboldt Bay 30 Comment
  HSC32327  Eriophyllum lanatum var. achilleoides D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5668 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC1223133  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1950-5-24 18696 Humboldt Cummings Post Office Comment
  CAS-BOT-BC301388  Eriophyllum lanatum var. grandiflorum Harley P. Chandler 1901-6-1 1301 Humboldt North Coast Ranges. Hupa Indian Reservation 152 Comment
  UC582674  Eriophyllum staechadifolium Joseph P. Tracy 1934-7-2 13291 Humboldt bluffs along ocean Trinidad Comment
  HSC8496  Erodium cicutarium D. B. Bader 1963-3-1 30 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  HSC26363  Erodium cicutarium T. O. Osborne 1970-5-24 87 Humboldt Flat-iron Rock, 3/4 mi. NW Trinidad Lighthouse Comment
  CDA17342  Eryngium articulatum P. Haggard 2004-8-15 PDR 1285928 Humboldt North Coast Ranges; Six Rivers National Forest on Friday Ridge Rd, Willow Creek. 0 Comment
  BLMAR129  Erysimum concinnum Jennifer Anthony-Wheeler 1996-4-4 129 Humboldt King range, growing on cliff faces at entrance 4mi creek & cliff faces facing ocean 12 Comment
  HSC6789  Erysimum menziesii J. W. Johnson 1962-4-1 1414 Humboldt Samoa Peninsula, in a hollow behind the foredunes, near Dune 5, Christenson Farm. Comment
  SEINET13693817 Image available Erythranthe dentata Noel H. Holmgren, Liew Fah Seong 1969-1 3613 Humboldt Prairie Creek Redwoods, in forest above coast near Del Norte County line Comment
  SEINET8371203  Erythranthe dentata L. F. Henderson 1933-5-27 15635 Humboldt Arcata-Redding road. Comment
  SD92948  Erythranthe grandis W. Bertsch 1953-7-30 228 Humboldt Highway 100 near Arcata Comment
  JEPS501  Erythronium grandiflorum Joseph P. Tracy 1930-7-18 9037 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC104352  Erythronium oregonum Maralyn Renner, Humboldt Redwood Co., LLC 2007-4-27 Humboldt Fruitland Ridge junction with Eel Rock Road. Comment
  UC1197642  Erythronium revolutum Joseph P. Tracy 1918-5-28 4938 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC16115  Eucalyptus globulus J. W. Bosworth 1965-5-14 51 Humboldt 1 mi. N of Fairhaven on Samoa Comment
  UC450221  Eucephalus ledophyllus Joseph P. Tracy 1919-9-18 5227 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1889 Comment
  RSA93311  Eucephalus tomentellus R. S. Woglum 1938-8-28 1974 Humboldt Patrick Creek Comment
  UC562613  Euchiton gymnocephalus Joseph P. Tracy 1936-3-22 14784 Humboldt 4 mi se Korbel (near Angels Ranch); North Coast Ranges 304 Comment
  HSC49682  Euchiton sphaericus J. O. Sawyer 1977-7-1 2990 Humboldt Aikens campground. Comment
  UC204871  Euchiton sphaericus Joseph P. Tracy 1918-10-6 5118 Humboldt 2 mi se Sequoia Park (on Connick Claim road, at Eureka); Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC310488  Euchiton sphaericus Joseph P. Tracy 1915-9-12 4677 Humboldt Northern Coast Ranges. Mouth of Laribee Creek 60 Comment
  HSC100666  Eunanus kelloggii Carl C. Marshall May 1887 417 Humboldt Spruce Grove region. Comment
  CDA4829  Euphorbia davidii E. C. Whitney 1963-8-5 s.n. Humboldt In ballast of N.W.P. R.R. tracks, Scotia. 0 Comment
  NY263154  Euphorbia occidentalis V. K. Chesnut 1888-7-23 Humboldt Hy-Am-Pum (spelling?) Comment
  UC902141  Euphorbia spathulata Joseph P. Tracy 1948-6-20 18068 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC419045  Eurybia radulina H. E. Parks, J. P. Tracy 1930-9-15 769 Humboldt Kneeland Bald Hills Comment
  CAS-BOT-BC312206  Eurybia radulina Carl B. Wolf 1937-9-8 9301 Humboldt 11 mi. W. of Redwood Highway, Bull Creek - Petrolia Road, North Coast Range 304 Comment
  JEPS32360  Euthamia occidentalis Joseph P. Tracy 1931-9-7 9636 Humboldt opposite mouth of, at Lack Pond, (in Trinity R. Valley opp. mouth of Willow Cr.) Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UC53434  Festuca californica unknown 1896-6-9 Humboldt South Fork Mts. Northern Coast Ranges Comment
  HSC71744  Festuca idahoensis M. A. Baker 1980-6-26 2426 Humboldt Near Sims Creek 610 Comment
  HSC90075  Festuca occidentalis Sam Stroich Jr., Rolf Miller, Brian Pereira 1990-4-28 50 Humboldt Hwy. 299, 4 mi. W of Burnt Ranch, Grey Falls campground 396 Comment
  UC1607838  Festuca occidentalis Harold E. Parks 1933-6-1 1401 Humboldt Spruce Cove Trinidad Comment
  UC38490  Festuca occidentalis Harley P. Chandler Jun 1901 1382 Humboldt Hupa Indian Reservation North Coast Ranges 304 Comment
  UCD66138  Festuca occidentalis A. H. Murphy 1951-6-25 70 Humboldt Snow Camp meadow, ca. 8 miles e.n.e. of Kneeland. Comment
  HSC9947  Festuca occidentalis D. W. C 1956-4-30 Humboldt Matole River Area Comment
  CAS-BOT-BC278966  Festuca rubra W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  CHSC32715  Festuca rubra Thomas Nelson; Jane Nelson 1976-7-26 3024 Humboldt The Lassics. Trinity-Humboldt county line. On road cut of 1S07 west of Black Lassic. 1615 Comment
  HSC26371  Festuca rubra T. O. Osborne 1970-9-16 62 Humboldt Trinidad Bay, Prisoner Rock Comment
  RSA126631  Festuca rubra H. S. Yates 1936-6-17 5691 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC176573  Festuca rubra Joseph P. Tracy 1912-7-7 3740 Humboldt Eureka North Coast Region 0 Comment
  UC526867  Festuca rubra Joseph P. Tracy 1927-6-8 8112 Humboldt Trinidad Northern Coast Region 60 Comment
  UCD66389  Festuca rubra Thomas Nelson; Jane Nelson 1976-7-26 3024 Humboldt Trinity - Humboldt County line: Road 1S07 west of Black Lassic. 1615 Comment
  UCD66498  Festuca subuliflora J. I. Mallory 1955-2-22 115 Humboldt Peavine Ridge one mile north of Luke Prairie. 701 Comment
  SEINET11826851  Filago gallica J. P. Tracy 1948-1 18038 Humboldt halfway between Bridgeville & Blacksburg, along Larrabee Creek Comment
  HSC21494  Foeniculum vulgare H. D. Sumner 1959-7-20 Humboldt West End Rd. along the Mad River 3 Comment
  HSC99023  Fragaria vesca Cara Witte 2008-7-14 899 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  JEPS44683  Fragaria vesca Lincoln Constance 1934-6-8 841 Humboldt Cow Creek fire trail South Fork Eel River, Bull Creek Region (from Bull Creek road, n over divide into the headwaters of Bear Creek) Comment
  HSC72613  Frangula californica subsp. occidentalis J. P. Smith 1977-7-3 9261 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  CAS-BOT-BC59951  Frangula purshiana Doris Kildale Gillespie 1932-9-1 4205 Humboldt Eureka, on S St. 1 block no. of Henderson St. 30 Comment
  CAS-BOT-BC59995  Frangula purshiana L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp. 1219 Comment
  SEINET516308  Frangula purshiana Vernon H. Oswald 1998-4-16 8914 Humboldt Elk Head, N end of Trinidad State Beach. 30 Comment
  HSC15542  Fritillaria affinis Paul Shields May 1955 Humboldt Patricks Point State Park Comment
  SDSU19198  Fritillaria affinis Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3008 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.2 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  HSC31447  Fritillaria recurva D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5564 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC100105  Fumaria capreolata J. P. Smith 2010-4-7 12724 Humboldt Along Fischer Rd., S of junction with School Rd. in McKinleyville 8 Comment
  JEPS52710  Galium ambiguum subsp. ambiguum Lauramay T. Dempster and G. L. Stebbins Jr. 1963-7-9 3854 Humboldt along Hwy 36 about 1 mi w Mad River crossing (n-facing slope); Low Gap Sunday School 792 Comment
  JEPS25693  Galium aparine P. C. Hutchison 1961-5-22 2021 Humboldt US 299 5.4 mi ne Klamath River bridge at Weitchpec (10 mi sw of Orleans, w side of river); Klamath River Comment
  JEPS25687  Galium bolanderi P. C. Hutchison 1961-5-22 2010 Humboldt 1.1 mi s Berry Summit (at 2871 ft alt. on hiway US 299) (on road to Horse Mountain, in slide) 914 Comment
  JEPS6692  Galium californicum subsp. californicum Joseph P. Tracy 1927-5-30 8085 Humboldt between Briceland and Redway 182 Comment
  CDA6673  Galium divaricatum T. C. Fuller 1958-6-17 603 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC31221  Galium muricatum D. E. Anderson 1972-6-20 5727 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  JEPS21476  Galium muricatum Francia Chisaki and Gene B. Newcomb 1958-6-23 1164 Humboldt on road to Shelter Cove 4 mi e of its junction with road to Ettersburg; on road to Shelter Cove 579 Comment
  JEPS52840  Galium muricatum Lauramay T. Dempster 1963-9-3 3919 Humboldt s Orleans (steep w-facing slope of side canyon); Slate Creek Bridge 94 Comment
  UC1196094  Galium parisiense Joseph P. Tracy 1946-8-25 17645 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  HSC90645  Galium trifidum Gail Newton 1982-6-1 3570 Humboldt Elk River Wildlife Area, Eureka. Comment
  POM232037  Galium triflorum I. L. Wiggins 1930-7-22 4688 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  UC28245  Galium triflorum Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UCD121943  Galium triflorum Linda M. Barker 1976-7-5 1649 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC46966  Gamochaeta ustulata J. P. Smith, Thomas W. Nelson 1977-6-30 9213 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC90249  Gamochaeta ustulata Jean Hanson 1980-5-24 59 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  HSC72784  Garrya buxifolia M. A. Baker 1980-7-11 2798 Humboldt Near Red Mtn. 1341 Comment
  UC154051  Garrya elliptica J. P. Tracy 1901-1-27 990 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  HSC40855  Garrya fremontii Thomas W. Nelson 1976-7-9 2992 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  HSC8397  Garrya fremontii J. P. Tracy 1935-7-14 14062 Humboldt Horse Mtn. 1433 Comment
  HSC8400  Garrya fremontii D. E. Anderson 1965-4-24 3537 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  CDA38572  Garrya fremontii T. C. Fuller, T. Gallion 1959-7-23 2833 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  UC34067  Gastridium ventricosum J. P. Tracy 1900-9-9 951 Humboldt bar of Yager Creek near Hydesville; bar of Yager Creek 60 Comment
  CHSC83107  Gaultheria shallon A. T. Leiser 1980-7-8 Humboldt Redwood National Park, Burm Creek. Comment
  HSC31633  Gaultheria shallon Glenn McGourty 1974-4-27 19 Humboldt Along rd. 1 mi. from Capetown bridge Comment
  UC32704  Gaultheria shallon Chesnut and Drew 1888-7-8 Humboldt near Arcata Comment
  UCD117455  Gaultheria shallon D. Sanchez-Mata 1996-6-28 s.n. Humboldt Blue Lake-Willow Creek. Lord-Ellis Summit. 560 Comment
  UCR275108  Gaultheria shallon Charity A. Hartshorn 2016-5-14 34 Humboldt Arcata Community Forest 244 Comment
  RSA95762  Gaultheria shallon E. K. Balls 1954-4-7 19001 Humboldt 64 miles from Bluff Creek on Hwy 299 from Willow Creek to Arcata. Origin of material: seed coll. by E.K. Balls, July 11, 1949. 152 Comment
  JEPS27603  Gayophytum heterozygum Joseph P. Tracy 1932-7-12 10456 Humboldt Brett Hole Klamath Mountains, Trinity Summit (head) 1828 Comment
  HSC40676  Gayophytum heterozygum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2925 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  UC20254  Gayophytum heterozygum Chesnut and Drew July 1888 Humboldt S. Fork Mt. Comment
  HSC36597  Gentiana affinis Linda M. Barker, J. O. Sawyer, Thomas W. Nelson 1975-9-4 1307 Humboldt Megwill Point on Elk Head, N of Trinidad in Trinidad State Beach 15 Comment
  UC154164  Gentiana affinis var. ovata Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6199 Humboldt near Ferndale; Russ Ranch Comment
  CAS-BOT-BC217411  Gentiana plurisetosa Doris K. Kildale 1925-8-17 1194 Humboldt Trinity Summit 1917 Comment
  HSC102240  Gentiana plurisetosa Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  HSC57882  Gentiana plurisetosa Walter Overton, Marvin Butler 1979-7-31 11420 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC217408  Gentiana plurisetosa Theodore F. Niehaus 1972-8-29 s.n. Humboldt A few hundred yards east of the town of Hoopa Comment
  HSC12527  Gentiana sceptrum Wilbur Peterson 1970-10-17 54 Humboldt Big Lagoon Comment
  JEPS47022  Gentiana sceptrum Joseph P. Tracy 1924-8-3 6768 Humboldt Northern Coast Region, Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  UC275299  Gentiana sceptrum R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  UC1198641  Gentianopsis simplex Doris Kildale Aug. 1925 Humboldt Trinity Summit Comment
  RSA0028176  Geranium bicknellii var. bicknellii D. E. Anderson 1963-5-25 2497 Humboldt About 4 miles east of Petrolia. Comment
  HSC37851  Geranium carolinianum Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  HSC63005  Geranium retrorsum M. Dean Griswold Jr. 1979-5-30 95 Humboldt N side of Samoa Blvd. Comment
  CAS-BOT-BC225471  Gilia millefoliata Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  HSC16985  Gilia millefoliata R. T. Forester 1963-5-6 49 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  HSC95589  Gilia millefoliata Andrea Pickart 2002-5-20 105 Humboldt Manila Dunes, near Manila Community Services District treatment area 15 Comment
  RSA150803  Gilia millefoliata D. E. Breedlove 1962-6-7 3041 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UCD117850  Gilia millefoliata Linda M. Barker 1976-6-1 1549 Humboldt 3 miles west of Arcata. Comment
  HSC100596  Gilia tricolor Carl C. Marshall May 1887 420 Humboldt Dobbyn's Creek. Comment
  UC1199277  Glebionis segetum Joseph P. Tracy 1933-8-22 12977 Humboldt at Eureka 6 Comment
  SD42578  Glehnia littoralis Carl B. Wolf 1937-6-18 Humboldt Centerville Beach 3 Comment
  SJSU2516  Glehnia littoralis subsp. leiocarpa H. L. Buckalew 1962-6-18 Humboldt Gold Beach at ocean near Prairie Cr Redwoods State Park Comment
  UC1197365  Glehnia littoralis subsp. leiocarpa J. P. Tracy 1901-5-18 1097 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  HSC10078  Glyceria declinata R. S. White 1965-5-19 87 Humboldt 5 mi. S of Samoa along the Samoa Rd. Comment
  UC1132071  Glyceria occidentalis H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quad 0 Comment
  CAS-BOT-BC282852  Glyceria striata Joseph P. Tracy 1925-6-13 7086 Humboldt Eureka 60 Comment
  CAS-BOT-BC303846  Gnaphalium Alice Eastwood 1923-8-14 12305 Humboldt Samoa Comment
  RSA168834  Gnaphalium canescens subsp. thermale Joseph P. Tracy 1942-8-30 17303 Humboldt Humboldt County: Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC302537  Gnaphalium palustre H. E. Parks; S. T. Parks 1937-8-1 24080 Humboldt Spruce Cove, Trinidad Comment
  HSC56965  Gnaphalium palustre Overton, Butler 1979-7-23 9488 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC164842  Gnaphalium palustre Joseph P. Tracy 1911-7-7 3383 Humboldt 3 m nw of junction with Trinity River Willow Creek (at meadow on mountainside, near Beebs Ranch); Northern Coast Ranges, , Trinity River 914 Comment
  HSC100579  Godetia purpurea Carl C. Marshall Jun 1886 295 Humboldt Pine Creek. Comment
  HSC100580  Godetia quadrivulnera Carl C. Marshall Jul 1886 81 Humboldt Hills 2,000 ft. and upwards. Comment
  HSC34504  Goodyera oblongifolia J. D. Ackerman 1975-5-3 441 Humboldt Hwy. 299, 200 yds. E of Lord Ellis Summit Comment
  CAS-BOT-BC304763  Grindelia hirsutula C. L. Hitchcock; J. S. Martin 1939-7-14 5437 Humboldt At Shelter Cove Comment
  UCR48594  Grindelia stricta R. D. Goeden, Don W. Ricker 1987-9-2 870902- 14 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  CAS-BOT-BC306615  Helenium bigelovii Joseph P. Tracy 1937-8-12 15657 Humboldt Snow Camp 1402 Comment
  UC205209  Helenium bigelovii Joseph P. Tracy 1919-9-18 5245 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1524 Comment
  RSA167314  Helenium bolanderi Joseph P. Tracy, H. E. Parks 1950-7-16 11686 Humboldt Park's place, 2 miles N of Trinidad. Comment
  HSC100435  Helenium puberulum Carl C. Marshall Jul 1886 350 Humboldt Liscom's Hill. Comment
  JEPS35541  Helenium puberulum W. L. Jepson 1936-8-13 17892 Humboldt Philipsville S. Fk. Eel River Comment
  UC166088  Helenium puberulum Joseph P. Tracy 1911-8-27 3534 Humboldt Ryan's Slough Northern Coast Region, Region about Humboldt Bay 0 Comment
  HSC53816  Hemizonella minima Griswold, Butler 1979-7-10 6253 Humboldt Near Board Camp Mountain, close to the town of Willow Creek 1494 Comment
  CAS-BOT-BC309989  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1914-7-5 4570 Humboldt Northern Coast Ranges. High Prairie on Bald Mountain 1066 Comment
  SBBG8413  Hemizonia congesta subsp. tracyi H. and M. Dearing 1939-5-24 3426 Humboldt near Capetown Comment
  UC275452  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-7-18 7215 Humboldt Cape Ridge Northern Coast Ranges, Cape Mendocino 304 Comment
  JEPS40410  Hemizonia congesta subsp. tracyi W. L. Jepson 1902-7-1 1975 Humboldt at Berry's Ranch Redwood Creek; Hupa road Comment
  HSC100437  Hemizonia luzulifolia Carl C. Marshall Jun 1885 71 Humboldt Hills. Comment
  UC1197367  Heracleum lanatum Joseph P. Tracy 1930-7-18 9079 Humboldt near Mckay Camp S. Fork Mt. 1676 Comment
  UCSB25051  Heracleum maximum Keefe, Joseph 1967-7-8 Humboldt Brushy roadside, junction crannell Road and Little River Drive, north of Eureka 6 Comment
  UC198602  Heteromeles arbutifolia Miss Landergen Dec 1916 Humboldt Fort Seward; Northern Coast Ranges 91 Comment
  HSC5311  Heterotheca oregona Paul Shields Aug 1955 Humboldt 1 mi. N of Weott Comment
  UC581757  Heterotheca oregona var. rudis Joseph P. Tracy 1933-10-15 13097 1/2 Humboldt Miranda, along South Fork of Eel River South Fork of Eel River 121 Comment
  SEINET12216924  Heuchera micrantha F. H. Utech 1986-1 86 -398 Humboldt ca 3 mi NW of Petrolla on Mattole Road (Humboldt County F3C) enroute to Capetown 80 Comment
  UC1222387  Heuchera micrantha var. macropetala Joseph P. Tracy 1950-7-2 18976 Humboldt at crossing of Little Hors Linto Creek (below Grizzly Camp); Trinity Summit Comment
  HSC81906  Heuchera rubescens Thomas W. Nelson 1979-7-11 4991 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC57892  Hieracium albiflorum Overton, Butler 1979-7-31 11464 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC74734  Hieracium albiflorum Gail Newton 1981-7-24 2303 Humboldt Near Chaparral Mtn. 1433 Comment
  UCD133133  Hieracium albiflorum Linda M. Barker 1976-6-14 1591 Humboldt 3 miles west of Arcata. Comment
  UC166227  Hieracium albiflorum Joseph P. Tracy 1908-6 2880 Humboldt nw slope Buck Mountain (near Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  UC1103737  Hierochloe occidentalis Joseph P. Tracy 1934-7-9 13340 Humboldt 3 mi s Harris; Northern Coast Ranges 762 Comment
  UC1191968  Hippuris vulgaris Malcolm A. Nobs and S. Galen Smith 1949-8-3 1191 Humboldt marsh & bog land at southern outskirts Eureka Comment
  BLMAR44  Holcus lanatus Brad Barr June, 1982 44 Humboldt King range, lake ridge near pond Comment
  CAS-BOT-BC280737  Holcus lanatus M. S. Jussel 1931-5-2 125 Humboldt 6 miles from Garberville Comment
  HSC27046  Holcus lanatus Brad W. Klipfel 1973-8-24 284 Humboldt Near Hwy. 101 Comment
  POM352401  Holcus lanatus Edith A. Purer 1932-7-30 16085 Humboldt South of Orick. Comment
  UC1103732  Holcus lanatus Joseph P. Tracy 1934-7-2 13295 Humboldt Trinidad 3 Comment
  UC922019  Holcus lanatus Joseph P. Tracy 1949-7-6 18330 Humboldt Eureka 30 Comment
  CAS-BOT-BC149897  Holodiscus discolor Joseph P. Tracy 1933-8-30 13031 Humboldt Grouse Mountain 1524 Comment
  RSA20812  Holodiscus discolor Carl B. Wolf 1937-9-9 9310 Humboldt N Coast Range, Wildcat ridge, 6.3 miles S of Ferndale. 305 Comment
  RSA85262  Holodiscus discolor F. W. Peirson 1926-7-13 8655 Humboldt Near Blue Lake, Mad River. Comment
  SDSU9080  Holodiscus discolor D. F. Howe 1964-8-10 3950 Humboldt 1.8 miles from Ferndale on road to Petrolia. 305 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
  CAS-BOT-BC149904  Holodiscus discolor J. H. Thomas 1949-6-14 925 Humboldt Klamath River Valley between Weitchpec and Hoopa Comment
  UCSB24337  Holodiscus discolor var. discolor Tracy, Joseph 1936-8-7 Humboldt Trinity summit, 2 miles southeast of Devil's Hole 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
  HSC102144  Hordeum brachyantherum subsp. brachyantherum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1051 Humboldt Patterson Meadows 1566 Comment
  HSC23405  Hordeum marinum subsp. gussoneanum Jeff Blake 1971-11-15 Humboldt Bear Ridge area, near Petrolia. Comment
  HSC26777  Hordeum marinum subsp. gussoneanum Thomas W. Nelson 1971-5-31 464 Humboldt 915 Comment
  RSA123425  Hordeum marinum subsp. gussoneanum H. S. Yates 1936-6-17 5710 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  HSC10157  Hordeum murinum subsp. leporinum W. F. Nickel 1965-5-16 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir. Comment
  POM264835  Horkelia tridentata subsp. flavescens Lincoln Constance, A. A. Beetle 1940-5-17 2613 Humboldt Above Van Duzen River, 1 mile below Dinsmore's 762 Comment
  CAS-BOT-BC537962  Horkelia tridentata var. flavescens J. D. Ackerman 1975-6-18 472 Humboldt Big Hill rd. ca. 10.4 mi. E. of Hoopa and Hwy. 96. Comment
  UCSB3139  Hosackia gracilis Phillips, Priscilla 1958-6-9 Humboldt Bishop Pine Lodge, 2 mi. north of Trinidad Comment
  HSC98966  Hosackia oblongifolia var. oblongifolia Cara Witte 2007-6-12 239 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1360 Comment
  HSC69766  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, Jane P. Nelson 1977-9-3 3732 Humboldt Along old logging rd. just E of Pine Mtn. 1433 Comment
  HSC97436  Hydrocotyle ranunculoides Ivy Watson 2008-9-28 33 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  UC1400341  Hydrocotyle ranunculoides Robert F. Thorne and P. Everett 1965-8-9 35316 Humboldt Clam Beach Co. Park 3 Comment
  HSC95387  Hydrocotyle ranunculoides Andrea Pickart 2002-7-19 186 Humboldt Arcata Marsh in Log Pond 10 Comment
  UCSB22187  Hydrocotyle ranunculoides Keefe, Joseph 1967-7-8 Humboldt East side of U.S. Highway 101, turnoff to Crannell Road, north of Eureka 6 Comment
  JEPS1645  Hydrophyllum occidentale Joseph P. Tracy 1935-7-16 13955 Humboldt lower foothills nw slope Buck Mountain 792 Comment
  JEPS1635  Hydrophyllum tenuipes Joseph P. Tracy 1940-5-17 16545 Humboldt flat near McClellan Ranch house; McClellan Mt. 609 Comment
  UC582691  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-25 15538 Humboldt Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC58018  Hypericum anagalloides G. L. Clifton 1979-7-31 11820 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1103553  Hypericum anagalloides Joseph P. Tracy 1935-7-25 14229 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC902140  Hypericum anagalloides Joseph P. Tracy 1947-6-28 17750 Humboldt Larrabee Valley 731 Comment
  RSA246853  Hypericum calycinum R. F. Thorne, P. C. Everett, K. Thorne 1965-8-9 35315 Humboldt Clam Beach County Park: along highway. 3 Comment
  RSA8307  Hypericum formosum var. scouleri I. L. Wiggins 1932-7-18 5886 Humboldt Boggy meadow between Arcata and Bayside Comment
  CDA30714  Hypericum perforatum M. K. Beyers, I. Shepardson 2009-9-13 250 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  JEPS66832  Hypericum perforatum W. L. Jepson 1902-7-4 1984 Humboldt Hupa, Camp Gaston Comment
  UC1198402  Hypericum perforatum Joseph P. Tracy 1933-7-3 12640 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC1198412  Hypericum perforatum Joseph P. Tracy 1926-7-25 7754 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 152 Comment
  UC165829  Hypericum perforatum Joseph P. Tracy 1911-7-9 3478 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC179926  Hypericum perforatum Joseph P. Tracy 1914-9-7 4618 Humboldt On Bald Mt. near Bald Mt. House; Northern Coast Ranges, Bald Mt. 914 Comment
  UCSB23845  Hypericum perforatum Keefe, Joseph 1967-7-8 Humboldt bank of Eel River; Miranda Turnoff; 12.4 miles north of Garberville on U.S. Highway 101 170 Comment
  POM285808  Hypericum perforatum Lyman Benson 1928-7-14 522 Humboldt Spring 10 miles N of Mendocino Line, Redwood highway. 457 Comment
  CAS-BOT-BC401303  Hypericum scouleri Doris K. Kildale 1926-7-9 2337 Humboldt Bayside Comment
  UC1223074  Hypochaeris glabra Joseph P. Tracy 1948-5-31 18020 Humboldt Dobbyn Creek 152 Comment
  HSC12221  Iris douglasiana Gary J. Stebbins 1970-5-17 79 Humboldt Beyond HSC dorms up Jolly Giant Creek, 1.8 mi. from parking lot 76 Comment
  JEPS17241  Iris douglasiana Lincoln Constance 1934-5-31 763 Humboldt from w boundary of park to Grasshopper Pk. (Squaw Cr.) (Bull Creek flat, along Bull Creek, n side of creek); South Fork Eel River, Bull Creek Region Comment
  RSA135872  Iris douglasiana Lee W. Lenz, E. K. Balls 1955-5-15 20742 Humboldt 2 miles southeast of Petrolia, along Old Coast Road to Ettersburg 122 Comment
  RSA136521  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-11 17191 Humboldt 10.1 miles southwest from Trinity - Humboldt County line; 5.2 miles north of Harris on road to Zenia Comment
  RSA167433  Iris purdyi Joseph P. Tracy 1950-7-1 18950 Humboldt Friday Camp, Friday Ridge, Grouse Mountain, North Coast Ranges 1220 Comment
  HSC45310  Iris tenax subsp. klamathensis R. York 1978-5-11 166 Humboldt Along logging road 4.5 mi. from Orleans 640 Comment
  HSC45311  Iris tenax subsp. klamathensis R. York 1978-5-11 165 Humboldt Along logging road above Orleans 640 Comment
  RSA298350  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-1 440 Humboldt 1.3 miles south of Hwy 96 on Ishi Pishi Road, west side of road, Orleans; aspect 52E 232 Comment
  OBI36658  Iris tenuissima David J. Keil 1983-7-2 17311 Humboldt Ca 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mtn Summit Rd Comment
  UC667943  Isoetes nuttallii Joseph P. Tracy 1938-7-7 16034 Humboldt at Cold springs Grouse Mt. 1432 Comment
  HSC40972  Isolepis cernua Linda M. Barker 1976-6-22 1618 Humboldt 3 mi. W of Arcata Comment
  RSA18061  Isolepis cernua Carl B. Wolf 1927-8-22 790 Humboldt Big Lagoon Comment
  JEPS63980  Isolepis setacea Joseph P. Tracy 1917-6-17 4817 Humboldt Salmon Creek Valley Northern Coast Ranges, Humboldt Bay, Salmon Creek Valley (around Humboldt Bay) 30 Comment
  RSA246799  Juncus balticus subsp. ater Robert F. Thorne, Percy C. Everett 1965-8-9 35290 Humboldt Big Lagoon. 3 Comment
  HSC34705  Juncus bolanderi Thomas W. Nelson 1974-7-20 1699 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS66935  Juncus bufonius W. L. Jepson 1921-8-7 9327 Humboldt Stone Lagoon Comment
  UCD141362  Juncus bufonius Linda M. Barker 1976-6-22 1619 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC69861  Juncus covillei Thomas W. Nelson, Ken Hindley 1978-5-28 4084 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC44314  Juncus covillei Thomas W. Nelson, Jane Nelson 1977-8-6 3698 Humboldt Above Alder Spring 1616 Comment
  HSC98006  Juncus covillei Cara Witte 2007-7-12 516 Humboldt Forest Service Road 5N10. 2 miles east of intersection with National Forest 1. 1339 Comment
  BLMAR659  Juncus effusus subsp. pacificus Andrew Maguire 2012-7-19 659 Humboldt Lacks Creek, Faulkner prairie 894 Comment
  HSC62949  Juncus effusus subsp. pacificus M. Dean Griswold 1979-5-27 65 Humboldt W of G St., S of Arcata Comment
  HSC99805  Juncus effusus subsp. pacificus Thomas W. Nelson 1975-9-24 2202 Humboldt Beside Indianola Rd., 0.5 mi. E of junction with Hwy. 101 Comment
  BLMAR312  Juncus ensifolius Jennifer Anthony-Wheeler July, 2002 312 Humboldt South Spit, near trail to salt marsh 6 Comment
  UC1103055  Juncus ensifolius Joseph P. Tracy 1900-9-9 947 Humboldt near mouth of Yager Creek; Northern Coast Ranges 60 Comment
  HSC99545  Juncus exiguus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 210 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1103057  Juncus hesperius J. P. Tracy 1900-8-26 931 Humboldt immediate vicinity Eureka 0 Comment
  RSA12536  Juncus laccatus Carl B. Wolf 1934-7-2 5902 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC44561  Juncus mertensianus Brad Klipfel 1973-7-15 180 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1151997  Juncus occidentalis Joseph P. Tracy 1937-8-12 15641 Humboldt Snow Camp 1402 Comment
  RSA70263  Juncus phaeocephalus var. phaeocephalus F. W. Peirson 1923-7-11 3669 Humboldt 7 miles N of Arcata, Humboldt County Comment
  NY790278  Keckiella corymbosa J. P. Tracy 1912-7-26 3847 Humboldt Kneeland Prairie Comment
  POM160888  Keckiella corymbosa Joseph P. Tracy 1920-8-15 5360 Humboldt Klamath River at Bluff Creek. 152 Comment
  UC535733  Keckiella corymbosa Eleanor Armstrong 1934-8-24 1186 Humboldt Richardson Grove 121 Comment
  RSA0009768  Keckiella lemmonii Marcus E. Jones 1931-7-16 28828 Humboldt Junction, East of Arcata. Comment
  HSC56112  Kelloggia galioides G. L. Clifton 1979-7-31 11876 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1199393  Kyhosia bolanderi Joseph P. Tracy 1932-7-16 10613 Humboldt Corral Prairie; Trinity summit 1584 Comment
  CAS-BOT-BC337992  Lasthenia californica Joseph P. Tracy 1932-6-26 10265 Humboldt Valley of South Yager Creek 762 Comment
  UC582759  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  CAS-BOT-BC94770  Lathyrus angulatus R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 829 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  CHSC71616  Lathyrus biflorus Kenneth W. Fuller 1998-7-2 Humboldt Collected on Red Mountain. Comment
  UC175637  Lathyrus jepsonii var. californicus Joseph P. Tracy 1913-6-13 4110 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS55323  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1926-5-2 7432 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  BLMAR60  Lathyrus littoralis Jennifer Anthony-Wheeler 1994-3-31 60 Humboldt King range, growing on matole beach1/4miS of campground.dense mat of like individuals 12 Comment
  HSC93527  Lathyrus littoralis Gordon Leppig, Kai Neander, Sylvia Leppig 1998-5-25 787 Humboldt Big Lagoon State Park. 2 Comment
  UC176288  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1913-6-17 4172 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  RSA249401  Lathyrus palustris D. E. Anderson, T. Nelson, S. Dowty 1972-6-17 5702 -A Humboldt McKeown Ranch north of Dinsmore Comment
  SEINET5327351  Lathyrus palustris J. Tracy 1907-7-20 2593 Humboldt near Samoa; region about Humboldt Bay 152 Comment
  HSC73128  Lathyrus polyphyllus M. A. Baker 1980-5-18 1283 Humboldt Near Black Mtn. 1006 Comment
  RSA168909  Lathyrus polyphyllus Joseph P. Tracy 1951-6-16 19469 Humboldt Happy Camp Mountain. In Trinity Summit Range, 6 miles northeast of Hawkins Bar. On the Takilma-Happy Camp Road. 1280 Comment
  BLMAR644  Lathyrus torreyi Jennifer Wheeler 2011-7-7 644 Humboldt Lacks Creek, Pine Ridge Road, spur at Stormy Saddle 1097 Comment
  SEINET956250  Lathyrus torreyi Joseph P. Tracy 1921-1 5478 Humboldt South fork of Esl River, near Myers, in open places in wood. 61 Comment
  UC1199063  Lathyrus torreyi Joseph P. Tracy 1911-7-7 3434 Humboldt between Willow Creek Campbell Creek (viz ridge n of Willow Creek); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UCD106660  Lathyrus torreyi C. L. Hitchcock 1949-6-7 19084 Humboldt 15 miles E of Blue Lake, along Highway 299. Comment
  UC709417  Lathyrus vestitus Joseph P. Tracy 1933-5-18 12195 Humboldt near Essex; Mad River 30 Comment
  UC931760  Lathyrus vestitus C. L. Hitchcock 1949-6-8 19087 Humboldt 1 mi se Willow Creek (along Highway 299) Comment
  RSA405756  Lathyrus vestitus subsp. vestitus Unspecified 1924-7-11 s.n. Humboldt Arcata Comment
  UC168987  Lathyrus vestitus var. vestitus Joseph P. Tracy 1912-8-3 3971 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC325929  Layia carnosa Joseph P. Tracy 1932-5-16 10106 Humboldt Sand dunes near Samoa, on Humboldt Bay. Comment
  UC34175  Layia carnosa Harley P. Chandler May 1901 1150 Humboldt Humboldt Bay 3 Comment
  UC1197587  Ledum glandulosum J. P. Tracy 1899-7-22 84 Humboldt immediate vicinity of Eureka 0 Comment
  UC1409177  Ledum glandulosum Robert F. Thorne and P. Everett 1965-8-9 35295 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC89165  Lepidium draba Joseph P. Tracy 1933-5-19 12201 Humboldt Eel River. Alton to Fortuna. 15 Comment
  CAS-BOT-BC89492  Lepidium heterophyllum Joseph P. Tracy 1942-6-15 17140 Humboldt Miranda. 91 Comment
  CAS-BOT-BC12876  Lepidium strictum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  UC1199168  Lepidium virginicum Joseph P. Tracy 1900-9-9 959 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  HSC49924  Leptosiphon androsaceus Maralyn O'Meara 1974-7-11 538 Humboldt Kneeland, Barry Ridge Comment
  CAS-BOT-BC226709  Leptosiphon latisectus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg Comment
  RSA54146  Lessingia nemaclada H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  CAS-BOT-BC334615  Leucanthemum vulgare L. R. Abrams 1916-7-18 6076 Humboldt Between Arcata and Trinidad Comment
  HSC71379  Leucanthemum vulgare J. P. Smith 1971-10-6 4942 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1199275  Leucanthemum vulgare Joseph P. Tracy 1918-7-21 5080 Humboldt around Humboldt Bay; Humboldt Hill 152 Comment
  HSC89757  Leucanthemum vulgare M. Roantree 1985-5-15 49 Humboldt E side of Trinidad Head. Comment
  HSC48392  Lewisia leeana Brad Klipfel 1973-6-10 152 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC99100  Lewisia nevadensis C. Witte 2007-5-21 52 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 with National Forest 1. 1394 Comment
  HSC101974  Lewisia triphylla M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 871 Humboldt Patterson Meadows 1555 Comment
  RSA10128  Leymus triticoides Joseph P. Tracy 1929-6-3 8601 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC154077  Ligusticum apiifolium Joseph P. Tracy 1906-6-24 2505 Humboldt near top Humboldt Hill; Northern Coast Region, Humboldt Bay 0 Comment
  HSC74226  Ligusticum californicum M. A. Baker 1980-7-19 3021 Humboldt Near Bret Hole. 1814 Comment
  HSC91937  Ligusticum californicum E. Mackey 1986-6-16 Humboldt Patrick's Point State Park, edge of meadow at Palmer's Point Comment
  CAS-BOT-BC451581  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt Cape Ridge - back of Cape Mendocino 304 Comment
  UC672870  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt back of Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  UC640274  Lilium columbianum H. and M. Dearing 1939-6-23 3698 Humboldt 5 mi n Trinidad Comment
  UCSB698  Lilium pardalinum Phillips, Priscilla 1958-6-7 Humboldt On Highway 101, 14.1 mi. south of Prairie Creek Redwoods State Park (north of Trinidad) Comment
  HSC57160  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-26 9959 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC75488  Lilium pardalinum subsp. pardalinum J. O. Sawyer 1980-7-18 3627 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC77931  Lilium pardalinum subsp. vollmeri D. K. Imper 1982-7-23 1496 Humboldt Near Onion Lake. 1371 Comment
  HSC28137  Limnanthes douglasii J. D. Ackerman 1973-5-28 49 Humboldt Hwy. 299, Berry Summit. Comment
  OBI12589  Limnanthes douglasii Lincoln Constance 1934-5-29 721 Humboldt S Fork Eel River. Upper Look Prairie 366 Comment
  UC668278  Limnanthes douglasii subsp. douglasii Joseph P. Tracy 1993-5-20 12246 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
Read comments
Jun 28 2015
  BLMAR427  Limonium californicum Clara Sander 2004-9-27 427 Humboldt South Spit, east side of road 4 Comment
  UC665605  Linanthus androsaceus Victor Duran 1933-5-10 3403 Humboldt near Blocksburg Comment
  UC908948  Linanthus androsaceus Joseph P. Tracy 1927-5-8 7975 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC146165  Linanthus bicolor Joseph P. Tracy 1908-6-9 2651 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1198574  Linanthus bicolor Joseph P. Tracy 1937-5-17 15288 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198538  Linanthus harknessii Harold E. Parks and Joseph P. Tracy 1934-6-27 11086 Humboldt Grouse Mt. 1432 Comment
  UC1197835  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1933-8-6 12939 Humboldt French Camp Ridge 1066 Comment
  UCR37554  Linaria canadensis var. texana L. P. Janeway 1983-5-19 299 Humboldt Samoa Peninsula c. 1/2 mi north of Eureka-Samoa bridge. Between RR tracks and old Samoa Road near W edge of Arcata Bay 3 Comment
  HSC57865  Linnaea borealis subsp. longiflora G. L. Clifton 1979-7-31 11390 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC774996  Linnaea borealis var. longiflora Carl B. Wolf 1937-8-13 9265 Humboldt on new road towards Trinity Summit 12 mi e Hoopa Valley; North Coast Range, e of Hoopa Valley 1676 Comment
  RSA20849  Linum angustifolium Carl B. Wolf 1937-6-18 8889 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  HSC15802  Linum bienne F. B. Plett 1963-4-9 15 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  UC169892  Linum bienne Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5685 Humboldt North Coast Ranges, Hoopa Mountain Hoopa Mountain; North Coast Ranges, Hoopa Mountain Comment
  HSC89417  Linum bienne P. A. Daly 1986-1-20 46 Humboldt Trinidad Head, along trail 61 Comment
  HSC39076  Listera caurina J. D. Ackerman 1976-7-3 764 Humboldt 1 mi. E of Blue Lake along old state Hwy. 299. Simpson Demonstration Forest, near hwy. Comment
  UC1103026  Listera cordata Joseph P. Tracy 1924-5-11 6687 Humboldt Bull Creek Flat Northern Coast Ranges 91 Comment
  HSC76614  Listera cordata var. nephrophylla Teresa Prendusi 1981-7-9 178 Humboldt Near Cedar Camp 1268 Comment
  CAS-BOT-BC36146  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-8-15 2546 Humboldt Hoopa Mt. 792 Comment
  JEPS81092  Lithocarpus densiflorus var. densiflorus Thomas W. Nelson and Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland; e side of junction of Kneeland and Maple Creek roads 670 Comment
  UC1199424  Logfia gallica Joseph P. Tracy 1936-8-23 15165 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  HSC10309  Lolium perenne E. W. Styskel 1964-4-25 69 Humboldt Alongside College Elementary School on Humboldt State College Campus, Arcata. Comment
  SEINET200609 Image available Lolium temulentum J. P. Tracy 1935-5-25 13893 Humboldt Dobbyn Creek 152 Comment
  HSC32942  Lomatium californicum Thomas W. Nelson, James Nelson 1973-5-28 954 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS16099  Lomatium californicum W. L. Jepson 1902-6-20 1892 a Humboldt Fort Seward Ranch Ridge (= Mail Ridge) 1219 Comment
  UC1222808  Lomatium dasycarpum Joseph P. Tracy 1950-7-6 19000 Humboldt Albee Road, 2 mi S of Burr Valley Comment
  HSC39199  Lomatium dasycarpum subsp. dasycarpum D. E. Anderson, J. P. Smith 1971-7-6 1323 Humboldt 2 mi. E of Pine Ridge Summit Comment
  JEPS16237  Lomatium dissectum var. dissectum Joseph P. Tracy 1913-6-20 4237 Humboldt lower foothhills of Buck Mt. (on its n.w. slope); Northern Coast Ranges, Buck Mt. 762 Comment
  HSC55723  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-26 10172 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  UC1222756  Lomatium macrocarpum Joseph P. Tracy 1950-6-15 18823 Humboldt n.e. side Mail Ridge (at Huestis Rock); , Huestis Rock Comment
  UC314596  Lomatium macrocarpum Joseph P. Tracy 1924-3-9 6611 Humboldt Kneeland Prairie 762 Comment
  UC906635  Lomatium macrocarpum Joseph P. Tracy 1947-7-5 17780 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC97458  Lomatium nudicaule Cara Witte 2007-5-29 125 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC46923  Lomatium tracyi Brad Klipfel 1974-5-27 381 Humboldt Horse Mtn. Comment
  UC1222487  Lonicera conjugialis Joseph P. Tracy 1950-8-8 19287 Humboldt Croghan Hole Trinity Summit 1676 Comment
  CAS-BOT-BC240479  Lonicera hispidula Carl B. Wolf 1927-8-28 1164 Humboldt Hoopa [Hupa Valley] Indian Reservation, on the Trinity River, 8 mi. from Weitchpec Comment
  HSC61763  Lonicera hispidula var. vacillans Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  POM284224  Lonicera hispidula var. vacillans Lyman Benson 1929-7-19 1864 Humboldt Dyerville to Mat[t]ole River. Comment
  HSC95659  Lonicera hispidula var. vacillans Steven Lee 2004-4-25 22 Humboldt South Fork Rd., from Hwy. 299 to County Rd. 341, 1/8 mi. down river access trail at end of Rd. Comment
  CAS-BOT-BC241482  Lonicera involucrata var. ledebourii Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  CHSC23308  Lonicera involucrata var. ledebourii Robert F. Thorne; P. Everett 1965-8-9 35301 Humboldt Big Lagoon 3 Comment
  UC162797  Lotus aboriginus Joseph P. Tracy 1909-8-1 3073 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC96477  Lotus corniculatus Gordon Leppig 1997-6-19 444 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC33504  Lotus formosissimus Chesnut and Drew 1888-7-8 Humboldt Kneeland Prairie Comment
  HSC44376  Lotus humistratus Thomas W. Nelson, Jane P. Nelson 1977-6-19 3512 Humboldt SW of Alder Springs along Rd. 2S08. 1524 Comment
  UC169299  Lotus purshianus var. purshianus Joseph P. Tracy 1912-8-3 3973 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1223419  Lotus purshianus var. purshianus Joseph P. Tracy 1937-8-12 15628 Humboldt 3 mi s Murphy Meadows (at border of Lake Prairie Bog); Bald Mountain, Lake Prairie, Lake Prairie Bog 1066 Comment
  SEINET181202 Image available Lotus scoparius var. scoparius Bassett Maguire, Ruth Maguire 1934-6-8 15126 Humboldt Vicinity Squaw Creek Comment
  UCD106707  Lotus uliginosus R. Tofsrud 1948-7-1 s.n. Humboldt Between Fields Landing and Loleta. Comment
  RSA246782  Lotus unifoliolatus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-7 35225 a Humboldt Samoa Peninsula. 3 Comment
  RSA183610  Lotus wrangelianus R. I. Bonn 1965-5-7 29 Humboldt Four mi els west of Arcata on Lanphere Rd. Comment
  UC1196934  Ludwigia palustris Joseph P. Tracy 1923-6-27 6383 Humboldt shore of Lack Pond (opposite mouth of Willow Creek); Northern Coast Ranges, Trinity R. Valley, Lack Pond 182 Comment
  UC584132  Lupinus David D. Keck and J. Clausen 1935-6-16 3392 Humboldt mouth of Little River Comment
  CAS-BOT-BC201189  Lupinus Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  SEINET12154352  Lupinus adsurgens J. P. Tracy 1946-1 17567 Humboldt at Ski Lodge, Horse Mtn 1219 Comment
  UC146385 Image available Lupinus adsurgens Chesnut and Drew 1888-7-21 Humboldt w slope S. Fork Mt.; ; S Fork Mt., Humboldt Co. Comment
  HSC97974  Lupinus albicaulis Cara Witte 2007-7-9 468 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  CHSC19506  Lupinus arboreus Gary J. Sebbings 1970-4-18 64 Humboldt Along U.S. lol 1.0 mi north of Clam Beach exit. Comment
  HSC35758  Lupinus arboreus M. J. Athey 1970-11-12 3 Humboldt Along Hwy., 1 mi. S of Westhaven turnoff, Trinidad. Comment
  UCD106590  Lupinus arboreus Linda M. Barker 1976-5-13 1474 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCSB26618  Lupinus arboreus Havlik, Neil 1968-8-21 Humboldt Along U.S. Highway 101; west of Arcata Airport 6 Comment
  HSC71165  Lupinus bicolor Thomas W. Nelson 1977-5-30 3411 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  HSC47610  Lupinus densiflorus J. P. Smith 1977-4-23 9026 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  BLMAR167  Lupinus latifolius Donald Hazlett 1994-6-7 167 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  JEPS65283  Lupinus latifolius var. latifolius Lincoln Constance 1934-5-29 714 Humboldt Upper Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC1223288  Lupinus latifolius var. latifolius Joseph P. Tracy 1936-7-5 15036 Humboldt top Grouse Mountain; top of Grouse Mountain 1524 Comment
  UC198577  Lupinus littoralis Joseph P. Tracy 1917-5-26 4785 A Humboldt Bucksport Northern Coast Ranges, , Bucksport (Eureka) 0 Comment
  RSA21447  Lupinus luteolus Carl B. Wolf 1937-8-12 9211 Humboldt 20 mi. north of Bridgeville on road to Kneeland. 457 Comment
  UC427882  Lupinus nanus H. E. Parks 1930-5-25 869 Humboldt Laribee Valley; in open meadows in Laribee Valley Comment
  SEINET10486156  Lupinus polycarpus Charles R. Gunn 1963-6-3 Gunn 2702 Humboldt 1/2 mi s of korbel on gravel road. In ditch along south mad river. Comment
  HSC14863  Lupinus rivularis J. L. Baker 1965-4-28 29 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. Comment
  RSA275290  Lupinus sellulus subsp. ursinus Thomas W. Nelson, Jane Nelson, A. P. Nelson 1977-6-19 3511 Humboldt Southwest of Alder Springs along road 2S08. 1463 Comment
  SEINET3069359 Image available Lupinus tracyi J. P. Tracy 1932-7-15 10598 Humboldt on ridges east on Corral Prairie, Trinity Summit Comment
  HSC14894  Lupinus variicolor Francis Winter 1960-4-19 Humboldt Samoa Pennisula 6 mi. W of Arcata. Comment
  HSC93220  Lupinus variicolor Ananda Dickie, Wendy Hooper, Rose Madrone, Kyla Waddell 1996-5-12 57 Humboldt Arcata bottoms, intersection of Janes Rd. and Jackson Ranch Rd., 200 m E of the Simpson Administration Bldg. 24 Comment
  HSC58111  Luzula comosa G. L. Clifton, Griswold 1979-8-1 12062 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC183719  Luzula comosa Joseph P. Tracy 1912-6-2 3642 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  HSC14137  Luzula comosa Yarick 1960-8-10 Humboldt W of rd. above Camp 9, Simpson Comment
  HSC49098  Luzula comosa J. O. Sawyer 1977-4-23 2838 Humboldt Along Bald Hills Rd. E of Hoopa Comment
  RSA15576  Luzula comosa Carl B. Wolf 1927-8-28 1167 Humboldt 9 miles from Willow Creek, on the grade of the road to Blue Lake. Comment
  RSA54022  Luzula parviflora E. K. Balls, Lee W. Lenz 1956-6-12 21662 Humboldt 4.4 miles SW from Willow Creek along U. S. Highway 299 to Arcata. 366 Comment
  RSA69739  Luzula parviflora F. W. Peirson 1923-7-11 3673 Humboldt About 3 miles north of Orick. Comment
  UC1152139  Luzula subsessilis Joseph P. Tracy 1941-3-23 16807 Humboldt Carlotta 5 mi e Town (open flat by old Strong's District School House); Carlotta, 5 mi e of town 60 Comment
  UC1745148 Image available Lycopodium clavatum Clare T. Golec 2000-7-13 Humboldt Spur ridge above Mad R. SE of Blue Lake 76 Comment
  UC503062  Lycopodium clavatum Joseph P. Tracy 1932-8-13 10341 Humboldt in woods around swamp 3 mi e Trinidad; Northern Coast Region 152 Comment
  JEPS63277  Lycopus americanus Joseph P. Tracy 1924-8-31 6853 Humboldt Klamath R. at mouth of Bluff Creek; Klamath R. 91 Comment
  LA31994  Lycopus uniflorus H. E. Parks; Joseph P. Tracy 1924-8-3 6765 Humboldt Big Lagoon 6 Comment
  SDSU11607  Lysichiton americanus D. F. Howe 1972-6-30 4845 Humboldt Trinidad Comment
  HSC91595  Lysichiton americanus E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near park entrance Comment
  RSA137264  Lysichiton americanus I. L. Wiggins 1957-6-19 14130 Humboldt East side of highway, Trinidad. Comment
  UC144652  Lythrum hyssopifolia J. P. Tracy 1903-8-2 1924 Humboldt immediate vicinity of Eureka 0 Comment
  UC420699  Lythrum hyssopifolia Harley P. Chandler June, 1901 1393 Humboldt North Coast Ranges, Hupa Indian Reservation Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC89989  Lythrum hyssopifolia Leonel Arguello 1989-6-10 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, at the end of the Fernstrom-Root trail, along W border of the salt marsh. Comment
  CAS-BOT-BC342802  Madia elegans J. Clausen 1932-9-18 688 Humboldt 8.2 miles west of Bull Creek Store; near summit of ridge 914 Comment
  HSC54202  Madia exigua Griswold, Butler 1979-7-12 7242 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC166102  Madia exigua J. P. Tracy 1901-6-30 1208 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC343026  Madia gracilis Doris K. Kildale 1928-6-24 7076 Humboldt Redwood Creek at Berry's 289 Comment
  HSC35783  Madia gracilis Thomas W. Nelson, B. Reinhardt 1975-7-30 2090 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  HSC44130  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3607 Humboldt Along road N from Alder Spring 1555 Comment
  HSC58359  Madia gracilis Overton, Butler 1979-8-2 12706 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS40388  Madia gracilis W. L. Jepson 1932-7-26 16405 Humboldt Bull Creek 106 Comment
  JEPS7503  Madia gracilis Joseph P. Tracy 1937-7-29 15596 Humboldt w slope near top South Fork Mountain (at Hyampom Trail) 1676 Comment
  OBI36372  Madia gracilis David J. Keil 1983-7-1 17268 Humboldt Ca. 13 mi W of jctn US 101 along Bull Crk Flats rd Comment
  UC495627 Image available Madia gracilis Joseph P. Tracy 1931-6-28 9588 Humboldt lower foothills of northwest slope of Buck Mountain Comment
  UC581814  Madia gracilis Joseph P. Tracy 1933-7-21 12817 Humboldt on road from Van Duzen River to South Yager; Bald Hills region, Redwood House 762 Comment
  POM114046  Maianthemum dilatatum Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC508503  Maianthemum dilatatum Wayne Roderick 1967-7-22 s.n. Humboldt Trinidad 30 Comment
  UCD139077  Maianthemum racemosum T. E. Weier 1942-5-22 s.n. Humboldt near Dyerville, Highway 101. Comment
  RSA377681  Maianthemum racemosum subsp. amplexicaule W. Hutchinson s.n. Humboldt [no locality specified] Comment
  SD56734  Maianthemum racemosum subsp. amplexicaule Darley F. Howe 1963-5-26 Humboldt 3.7 miles east of Orick on Bald Hill Road. 487 Comment
  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
  HSC101981  Maianthemum stellatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 878 Humboldt Patterson Meadows 1566 Comment
  HSC15890  Maianthemum stellatum T. M. Mingo May 1965 Humboldt E of College Cove, N of Trinidad Comment
  HSC34633  Maianthemum stellatum Robert M. Specht 1975-4-9 123 Humboldt Along base of ocean bluff from end of Murray Rd. 6 Comment
  HSC96236  Maianthemum stellatum Kaylea Eickoff, Cara M. Witte 2005-6-10 8 Humboldt Coldsprings Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  RSA289951  Maianthemum stellatum Lincoln Constance 1934-6-2 783 Humboldt Bull Creek road to mouth of Bull Creek, and up Bull Creek. Bull Creek region, South Fork Eel River Comment
  SEINET12050368  Maianthemum stellatum F. H. Utech 1988-1 88 -280 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, Mile Marker 42.00, above Van Duzen River 800 Comment
  HSC18698  Malus fusca Gerald T. Rood 1962-5-6 9 Humboldt Kneeland Rd. ca. 1 mi. W of Barry Rd. Comment
  UCD116540  Malva verticillata Paul Holzberger 1981-8-24 s.n. Humboldt 1251 Williams Street, Eureka. Comment
  CHSC46935  Marah oregana Robert A. Schlising 1963-6-4 2583 Humboldt Patrick Point State Park. Comment
  RSA80535  Marah oregana Roxana S. Ferris 1951-9-5 12448 Humboldt Trinidad Head. Comment
  HSC93221  Marah oregana Gordon Leppig 1998-3-16 720 Humboldt McKinleyville, near end of Fischer Ave. at the Hammond Trail entrance 18 Comment
  HSC95547  Marah oregana Andrea Pickart 2002-5-26 112 Humboldt Lanphere Dunes, along dirt road to Lanphere Dune Office 0 Comment
  UC168954  Marah oregana Joseph P. Tracy 1909-5-30 2980 Humboldt Eureka Northern Coast Region 0 Comment
  UCSB15707  Marah oregana Breedlove, Dennis 1961-7-4 Humboldt North bank of the Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  UCSB23847  Marah oregana Keefe, Joseph 1967-7-8 Humboldt Crannell Road, 2.0 miles east of Crannell, north of Eureka 30 Comment
  UC1197430  Medicago arabica Joseph P. Tracy 1936-6-8 14867 Humboldt Trinidad; on bluffs 3 Comment
  HSC71442  Medicago lupulina J. P. Smith 1971-10-9 5003 Humboldt Mad River above the Fish Hatchery. Comment
  HSC14978  Medicago polymorpha A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek jct., 50 yards W of Lindsey Creek. Comment
  CAS-BOT-BC271172  Melica aristata Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC47607  Melica californica J. P. Smith 1977-4-23 9023 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC1103760  Melica californica Joseph P. Tracy 1950-6-15 18780 Humboldt 5 mi n Harris; Mail Ridge 944 Comment
  UC34137  Melica californica Joseph Burtt Davy 1899-6-8 5343 Humboldt Bells Springs Comment
  UC1103758  Melica fugax Joseph P. Tracy 1936-7-5 15041 Humboldt Grouse Mountain 1524 Comment
  HSC70380  Melica geyeri M. A. Baker 1980-6-7 1795 Humboldt Near Brush Mountain. 1128 Comment
  UC184006  Melica subulata Joseph P. Tracy 1906-4-15 2407 Humboldt about 4 mi from Korbel; Northern Coast Ranges, Bald Mtn. 457 Comment
  UCD89112  Melica torreyana A. H. Murphy 1951-4-18 s.n. Humboldt Fort Seward. 182 Comment
  POM66219  Melilotus albus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UC673063  Melilotus albus Joseph P. Tracy 1933-8-13 1 Humboldt along river near Blue Lake; Mad River 15 Comment
  HSC15519  Melilotus albus C. Kline 1970-11-9 66 Humboldt .5 mi. N of Bayside, Bayside Rd. Comment
  UC1225834 Image available Mentha aquatica Joseph P. Tracy 1943-11-14 17451 Humboldt 2 mi s Field's Landing (along edges of foothills); s of Field's Landing 6 Comment
  POM174071  Mentha canadensis Joseph P. Tracy 1918-9-29 5105 Humboldt South Fork of Eeel River 4 miles above the mouth. Comment
  JEPS63451  Mentha pulegium W. L. Jepson 1936-8-11 17872 Humboldt South Fork Eel River Philipsville; , Philipsville Comment
  UC1197585  Menziesia ferruginea E. Ethel Tracy 1911-5-26 3189 Humboldt Patrick's Point; Northern Coast Ranges, Patrick's Point 60 Comment
  BLMAR115  Micranthes californica Jennifer Anthony-Wheeler 1995-3-15 115 Humboldt King range, growing on N.end of campground shaded under white oak 121 Comment
  UCD102807  Micranthes californica K. Esau 1935-4-8 s.n. Humboldt Fort Seward. Comment
  UC175183  Micropus californicus var. californicus Joseph P. Tracy 1913-6-13 4099 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UC891844  Microseris borealis Milo S. Baker 1927-8-21 24886 Humboldt bog near Bald Mt. 914 Comment
  SEINET11810179  Microseris laciniata H. P. Chandler 1901-1 1408 Humboldt Klamath River 244 Comment
  UC1199451  Microseris laciniata subsp. laciniata Joseph P. Tracy 1933-7-26 12925 Humboldt s slope Grouse Mountain (towards low creek); North Coast Ranges, s slope Grouse Mountain 1219 Comment
  UC582734  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  POM247189  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt South Fork Mountain, near McKay Camp 1677 Comment
  UC1196767  Mimulus alsinoides Joseph P. Tracy 1946-6-23 175900 Humboldt Kneeland Prairie 762 Comment
  UC582708  Mimulus arvensis H. E. Parks and Joseph P. Tracy 1931-5-9 12541 Humboldt near Miranda 60 Comment
  UC902229  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1947-5-24 17691 Humboldt Devil's Canyon Big Lagoon 152 Comment
  UC1011928  Mimulus aurantiacus var. aurantiacus Francis W. Pennell 1940-7-8 26109 Humboldt above beach s Trinidad; Route 101 30 Comment
  JEPS10550  Mimulus breweri W. L. Jepson 1902-7-23 2108 Humboldt Trinity Summit 2133 Comment
  HSC70513  Mimulus cardinalis Thomas W. Nelson, Jane P. Nelson 1977-8-6 3685 Humboldt Along Mad River at Anderson's Ford 640 Comment
  UC336872  Mimulus dentatus V. Rattan June 1882 Humboldt Humboldt Bay Comment
  HSC90635  Mimulus guttatus Gail Newton 1983-6-5 3555 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC45092  Mimulus guttatus R. Sutherland 1978-5-12 13 .12578 Humboldt 290 Comment
  JEPS25699  Mimulus guttatus P. C. Hutchison 1961-5-22 2033 Humboldt 1/2 mi above Somes Bar (Hiway 299 ca. 100 ft. from Siskiyou Co. line) Comment
  UC582478  Mimulus inodorus Joseph P. Tracy 1937-8-12 15655 Humboldt Snow Camp 1402 Comment
  UC1196803  Mimulus layneae Joseph P. Tracy 1937-7-5 15373 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC102582  Mimulus moschatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1569 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC40813  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2866 Humboldt Along Rd. to Goat Hill. 1646 Comment
  HSC76046  Mimulus moschatus Overton, Butler 1979-8-2 12559 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC18484  Mimulus pilosus Jana Kattenhorn 1970-10-28 200 Humboldt Mad River, Essex Rd. off Hwy. 299 Comment
  UC582442  Mimulus pilosus Joseph P. Tracy 1925-11-1 7300 Humboldt Shively; on river bar 60 Comment
  RSA168878  Minuartia douglasii Joseph P. Tracy 1950-7-6 18993 Humboldt 2 miles S of Burr Valley on the Albee Road, Bridgeville to Blocksburg. 1159 Comment
  HSC40009  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson 1976-7-1 2905 Humboldt Along ridge N of Bear Creek. 1463 Comment
  HSC97557  Minuartia nuttallii subsp. gregaria Cara Witte 2007-6-1 164 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1311 Comment
  CAS-BOT-BC433033  Mitella ovalis J. P. Tracy 1901-6-10 1133 Humboldt Immediate vicinity of Eureka 152 Comment
  HSC64876  Mitella ovalis J. P. Smith 1973-5-26 6849 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC59448  Mitella ovalis Kenneth Clark 1979-4-2 23 Humboldt 1/4 mi. E of end of Granite Ave. above Jolly Giant Creek 46 Comment
  RSA0074180  Modiola caroliniana J. B. Feudge 1923-7-26 85 Humboldt Damp roadside near Ferndale, Calif Comment
  HSC32260  Moehringia macrophylla J. O. Sawyer 1970-6-24 2275 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC96209  Moehringia macrophylla Rick Lindquist, C. Riley 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1205 Comment
  HSC99385  Moehringia macrophylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 34 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC8146  Moehringia macrophylla Harley P. Chandler June, 1901 1284 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  CAS-BOT-BC221969  Monardella odoratissima subsp. glauca Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  JEPS63387  Monardella purpurea Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 1310 Comment
  HSC98012  Monardella sheltonii Cara Witte 2007-7-27 603 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1413 Comment
  HSC99284  Monardella villosa J. Wendell Howe 1931-6-19 Humboldt Redway Comment
  RSA0022786  Monardella villosa subsp. subserrata F. W. Peirson 1926-7-13 7050 Humboldt Near Blue Lake, Mad River Comment
  UC162959  Monardella villosa subsp. villosa Joseph P. Tracy 1911-7-9 3476 Humboldt Near Willow Creek west side of river; Northern Coast Ranges, Trinity River 182 Comment
  BLMAR589  Monardella villosa subsp. villosa Jennifer Wheeler 2010-7-13 589 Humboldt King range, Panther Gap Road 792 Comment
  SEINET4173669 Image available Monardella villosa var. glabella Joseph P. Tracy 1947-1 17782 Humboldt Trinity Summit; ridge top one mile west of Mud Springs, in serpentine formation 1158 Comment
  UC1409015  Monotropa hypopitys Robert F. Thorne and P. Everett 1965-8-5 35132 a Humboldt Wailaki Recreation Site 609 Comment
  HSC62708  Monotropa hypopitys M. A. Baker 1979-7-6 1008 Humboldt Comment
  CAS-BOT-BC445149  Montia parvifolia Volney Rattan No date on label s.n. Humboldt Unspecified Comment
  HSC37958  Morella californica Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  HSC40948  Morella californica Linda M. Barker 1976-6-1 1542 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  SD40075  Morella californica Edith A. Purer 1932-7-27 4134 Humboldt Samoa Comment
  HSC10393  Muhlenbergia filiformis J. P. Tracy 1930-7-16 8920 Humboldt Near McKay Camp. 1677 Comment
  HSC58649  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-7-31 11677 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  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
  CAS-BOT-BC101672  Myrica californica C. L. Hitchcock; J. S. Martin 1939-7-14 5437 a Humboldt at Shelter Cove Comment
  SEINET3155577  Myrica californica J. W. Johnson 1961-11-27 1431 Humboldt Arcata; along the trail on the Hunt Farm, Samoa Peninsula. Comment
  HSC77872  Myriophyllum sibiricum Andy Gordus 1978-1 Humboldt N side of Hwy. 299, near Essex Rd. Comment
  UC526762  Nassella lepida Joseph P. Tracy 1933-5-20 12247 Humboldt hillside near Petrolia; Northern Coast Ranges, Mattole Valley 152 Comment
  UC604654  Navarretia intertexta Joseph P. Tracy 1938-7-5 16012 Humboldt open flat by 5 mi e of town old Strong's District School House; Carlotta 45 Comment
  SEINET200377  Navarretia intertexta Joseph P. Tracy 27 Jun to 30 Jul 1908 2799 Humboldt Valley of Van Duzen River opposite Buck Mountain. 305 Comment
  UC1198603  Navarretia intertexta Joseph P. Tracy 1906-7-4 2525 Humboldt near Carlotta (near Hydesville); Northern Coast Region 60 Comment
  UC133635  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1908-6 2920 Humboldt nw slope Buck Mountain; Northern Coast Ranges, nw slope Buck Mountain 1219 Comment
  JEPS70475  Navarretia squarrosa Lincoln Constance 1934-6-25 931 Humboldt across road Collin's Englewood Campground (on e side of road at Englewood, main Eel River); Eel River, Bull Creek Region, Englewood Comment
  UCR143528  Navarretia tagetina J. P. Tracy 1950-6-23 18862 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint 213 Comment
  JEPS70490  Navarretia tagetina Joseph P. Tracy 1916-9-6 4758 Humboldt headwaters of Canoe Creek Northern Coast Ranges, Grasshopper Ridge, Canoe Creek 609 Comment
  POM64955  Navarretia viscidula Joseph P. Tracy 1916-6-20 4732 Humboldt Alder Point, Northern Coast Ranges 152 Comment
  UC602566  Nemacladus capillaris Joseph P. Tracy 1930-7-10 8865 Humboldt Brannan Mt. 1219 Comment
  SEINET10840156  Nemacladus capillaris Tracy 1930-7-10 TRACY 8865 Humboldt Brannan Mountain 1219 Comment
  SEINET3156479  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  UC1005677  Nemophila menziesii Frank W. Gould 1939-5-30 835 Humboldt about 25 mi due e Eureka (near top Horse Mountain, near ski-hut); near top Horse Mountain, e of Eureka 1100 Comment
  UC146182  Nemophila menziesii var. atomaria Joseph P. Tracy 1906-5-6 2445 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UC562585  Nemophila menziesii var. atomaria Joseph P. Tracy 1932-5-10 9928 Humboldt Bear River Ridge , Bear River Ridge (Northern Coast Ranges) 609 Comment
  UC67069  Nemophila menziesii var. atomaria H. P. Chandler 1276 Humboldt Hupa Mts. 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
  CAS-BOT-BC219405  Nemophila parviflora Doris K. Kildale 1927-3-20 2915 Humboldt Philipsville [Phillipsville], South Fork of Eel River Comment
  UC176993  Nemophila pedunculata Joseph P. Tracy 1913-5-4 4065 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  JEPS1926  Nemophila pedunculata Joseph P. Tracy 1927-3-27 7858 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, nr South Fork Trinity River Valley 182 Comment
  CAS-BOT-BC60545  Noccaea fendleri subsp. californica Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie - summit rock pile. 853 Comment
  CDA20507  Noccaea fendleri subsp. californica P. Haggard 2004-8-3 PDR 1285924 Humboldt Northwestern California; Along Friday Ridge Rd in Blue Lake. 0 Comment
  HSC6970  Noccaea fendleri subsp. glauca Lincoln Constance, R. C. Rollins 1942-5-12 2887 Humboldt Klamath River, 7 mi. NE of Weitchpec 122 Comment
  HSC22510  Notholithocarpus densiflorus var. densiflorus D. E. Anderson 1963-9-1 2805 Humboldt Near Kneeland 732 Comment
  HSC43110  Notholithocarpus densiflorus var. densiflorus Thomas W. Nelson, Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland, E side of junction of Kneeland and Maple Creek roads 671 Comment
  HSC18700  Oemleria cerasiformis R. E. Thill 1965-4-27 19 Humboldt 1 mi. off Hwy. 299 on Essex Lane Rd. Comment
  HSC18701  Oemleria cerasiformis J. L. Baker 1965-3-13 13 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. Comment
  UC642334  Oenanthe sarmentosa Joseph P. Tracy 1936-8-17 15149 Humboldt near Field's Landing 6 Comment
  NY233562  Oenothera hookeri subsp. wolfii C. B. Wolf 1934-10-11 6172 Humboldt Roadside along the Redwood Highway, just south of Trinidad. Comment
  UCR45425  Onychium densum Thomas W. Nelson 1977-6-15 3452 Humboldt North Coast Range, [Horse Mountain] along old road to ski area 1372 Comment
  HSC102095  Orobanche uniflora M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 998 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC96246  Orobanche uniflora Kaylea Eickhoff, Cara M. Witte 2005-6-10 10 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  UC1197443  Orobanche uniflora subsp. occidentalis Mrs. Frank A. Graham 1921-4-1 Humboldt Northern Coast Ranges. Trinity River Valley, near Willow Creek. Comment
  UC35308  Orobanche uniflora subsp. occidentalis W. C. Blasdale 1896-6-8 Humboldt Graham's. Comment
  UC906645  Orogenia fusiformis Joseph P. Tracy 1942-6-23 17252 Humboldt near top Trinity Summit (w. of Water-Dog Lakes) 1828 Comment
  RSA80294  Orthocarpus faucibarbatus F. W. Peirson, Mabel B. Peirson 1923-7-11 3849 Humboldt 7 miles N of Arcata. Comment
  RSA402027B  Orthocarpus faucibarbatus S. K. Harris 1936-6-7 683 Humboldt Eureka. Near railroad station. 3 Comment
  SEINET8733538 Image available Orthocarpus faucibarbatus S. K. Harris 1936-1 683 Humboldt near railroad station, Eureka 3 Comment
  HSC21583  Osmorhiza berteroi R. D. Zortman 1963-5-15 49 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  UC642235  Osmorhiza berteroi Joseph P. Tracy 1930-7-17 9018 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  BLMAR43  Osmorhiza berteroi June, 1982 43 Humboldt King range, tolkan campground Comment
  HSC45396  Osmorhiza berteroi Thomas W. Nelson, Jane P. Nelson 1977-7-4 3596 Humboldt Beside pond above Alder Springs 1585 Comment
  JEPS14168  Osmorhiza berteroi Lincoln Constance 1934-5-26 649 Humboldt near Founder's Tree; South Fork Eel River, Bull Creek Region, North Dyerville, Fl 48 Comment
  HSC56139  Osmorhiza occidentalis G. L. Clifton 1979-8-1 11960 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC1197131  Osmorhiza occidentalis Joseph P. Tracy 1947-7-9 17830 Humboldt Arford Cabin (Ski Lodge) Horse Mountain (lower slopes of mt.) Comment
  HSC12761  Oxalis articulata subsp. rubra M. J. Athey 1970-11-8 12 Humboldt Along Arcata blvd., in Arcata. Comment
  HSC59074  Oxalis articulata subsp. rubra Thomas Wood 1979-5-3 147 Humboldt In Arcata, in front yard at 3799 Spear Ave. 9 Comment
  HSC16702  Oxalis oregana A. E. Inman 1962-5-25 Humboldt E bank of Mad River, W of Camp Bauer Comment
  UC726372  Oxalis oregana A. A. Heller 1923-7-8 13770 Humboldt near Pepperwood Comment
  POM87947  Oxalis rubra L. R. Abrams 1922-6-25 8263 Humboldt Between Trinidad and Big Lagoon Comment
  SD64134  Oxalis rubra W. Bertsch 1953-7-30 221 Humboldt Redwoods-Dyerville-Highway 101 60 Comment
  UC302046  Oxalis trilliifolia Joseph P. Tracy 1926-5-22 7499 Humboldt Prairie Creek Northern Coast Ranges Comment
  RSA20792  Oxalis trilliifolia Carl B. Wolf 1937-8-13 9257 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  CDA38475  Oxypolis occidentalis Laurel Goldsmith & Wanda Naylor 2005-6-15 7 Humboldt Coldspring Camp, 7.4 mi. south of Hwy. 299 on NF1. Comment
  CAS-BOT-BC318150  Packera bolanderi var. bolanderi J. Burtt Davy; W. C. Blasdale 1899-6-12 5453 Humboldt near Elk Prairie Comment
  CAS-BOT-BC318155  Packera bolanderi var. bolanderi LeRoy Abrams 1916-7-11 6009 Humboldt Mouth of Grizzly Creek on Van Duzon River Comment
  HSC79057  Packera macounii D. K. Imper 1983-7-12 659 Humboldt Blue Creek Mtn. Comment
Read comments
May 27 2013
  RSA152617  Panicum acuminatum var. acuminatum Joseph P. Tracy 1918-7-5 5014 Humboldt White Thorn Valley 305 Comment
  HSC32567  Panicum acuminatum var. fasciculatum Thomas W. Nelson 1973-9-3 1120 Humboldt McKeown Ranch N of Dinsmore Comment
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Jul 8 2015
  UCR30860  Parentucellia viscosa A. C. Sanders 1981-8-6 2307 Humboldt Russ Park, City of Ferndale 46 Comment
  HSC75415  Paxistima myrsinites J. O. Sawyer, M. A. Ericksen 1980-7-18 3645 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  JEPS9618  Paxistima myrsinites Joseph P. Tracy 1933-4-30 6042 Humboldt ridge n. of Willow Creek between Willow and Campbell Creeks (Brannan Mt.); Brannan Mt. 914 Comment
  SBBG70467  Pectiantia ovalis S. W. H. -Jun-1917 1002 Humboldt Redwood Hwy 243 Comment
  HSC104271  Pedicularis densiflora Samantha E. Andres 2016-3-14 1 Humboldt Along Hwy. 299, ~5 mi. W of Willow Creek 274 Comment
  UC179970  Pedicularis groenlandica Joseph P. Tracy 1914-7-4 4533 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges 1066 Comment
  UC1314350  Pellaea andromedifolia R. M. and A. F. Tryon 1958-6-5 5556 Humboldt 3.8 mi w Redway (on rd to Briceland) Comment
  UC71289  Pellaea brachyptera Chesnut and Drew 1888-7-21 Humboldt Pilot Ridge Comment
  HSC55690  Penstemon anguineus Walter Overton, Marvin Butler 1979-7-26 9999 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1341 Comment
  BLMAR213  Penstemon anguineus Jennifer Anthony-Wheeler 1996-7-9 213 Humboldt Pilots ridge., open gen. Loggged areas of +/- conf. Forest 1402 Comment
  SEINET7719718  Penstemon corymbosus Chesnut, Drew 1888-7-10 Humboldt Jarnigan's Comment
  HSC102131  Penstemon deustus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1035 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC39932  Penstemon laetus subsp. sagittatus J. O. Sawyer 1970-6-25 2293 Humboldt 1646 Comment
  JEPS15454  Penstemon newberryi var. berryi Hilda W. Grinnell 1932-7-9 2 Humboldt McKay Camp South Fork Mountain Comment
  JEPS85630  Penstemon newberryi var. berryi W. L. Jepson July 16 - 23, 1902 2107 Humboldt Trinity Summit 2133 Comment
  JEPS7918  Penstemon rattanii Joseph P. Tracy 1921-6-12 5822 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1032475  Penstemon rattanii A. E. Wieslander 1931-5-21 213 Humboldt Kneeland China Flat Quad. Comment
  HSC1077  Pentagramma triangularis D. E. Anderson 1965-11-21 4170 Humboldt 3-4 mi. S of Weitchpec along rd. to Hoopa Comment
  CAS-BOT-BC71620  Pentagramma triangularis subsp. triangularis Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC32529  Perideridia kelloggii Thomas W. Nelson 1973-9-3 1133 Humboldt McKeown Ranch N of Dinsmore Comment
  CAS-BOT-BC419742  Persicaria wallichii Stuart K. Harris 1959-7-15 20144 Humboldt Falk Comment
  UC1070054  Petasites frigidus var. palmatus R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quad. Comment
  HSC100713  Petasites palmatus Carl C. Marshall Apr 1886 54 Humboldt Banks of streams. Comment
  JEPS11985  Phacelia bolanderi Rimo Bacigalupi with G. T. Robbins 1954-6-28 4657 Humboldt 2 mi n Hoopa; Hoopa Indian Reservation, Trinity River 91 Comment
  UC1586868  Phacelia bolanderi Juha Pykala and D. H. Norris 1987-6-10 1510 Humboldt on a road to Onion Lake about 18 mi from Highway 96; Six Rivers National Forest Comment
  UC56715  Phacelia bolanderi Harley P. Chandler May 1901 1088 Humboldt Idlewild North Coast Ranges 91 Comment
  UC1051815  Phacelia nemoralis subsp. oregonensis C. R. Bell May, 1951 1098 Humboldt bank below US Hwy 101 2.9 mi n Mendocino County line Comment
  UC1051817  Phacelia nemoralis subsp. oregonensis L. R. Heckard 1952-5-13 272 Humboldt near railroad station; Alton Comment
  UC562579  Phacelia rattanii Joseph P. Tracy 1923-6-20 6305 Humboldt White Thorn Valley 304 Comment
  UCD88333  Phalaris angusta A. A. Beetle; J. P. Tracy, G. L. Stebbins Jr. 1942-6-2 3465 Humboldt 1 mile E of Alton. Comment
  JEPS43497  Philadelphus lewisii Lincoln Constance 1934-5-26 655 Humboldt near Founder's Tree; South Fork Eel River, Bull Creek Region, North Dyerville Fla 48 Comment
  UC1127362  Philadelphus lewisii R. Stahelin 1933-7-18 Humboldt Korbel near Riverside Plant. Korbel, 7.5 Q. Comment
  HSC26164  Phleum alpinum J. P. Smith, Steve Selva 1970-6-30 4127 Humboldt Comment
  HSC58654  Phleum alpinum G. L. Clifton, Griswold 1979-7-31 11726 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC58687  Phleum alpinum G. L. Clifton, Griswold 1979-8-2 12405 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC74182  Phleum alpinum M. A. Baker 1980-7-22 3105 Humboldt Near Grogan Hole. 1676 Comment
  UC526668  Phleum alpinum Joseph P. Tracy 1926-7-5 7733 Humboldt Valley of South Yager Creek 762 Comment
  RSA53767  Phleum pratense Henry M. Pollard 1945-8-31 s.n. Humboldt Orleans to Somes Bar, east side of Klamath River. Comment
  UC1145044  Phleum pratense Joseph P. Tracy 1947-8-24 17899 Humboldt Meadow at Box Camp Trinity Summit 1463 Comment
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Aug 5 2009
  JEPS79942  Phlox adsurgens Joseph P. Tracy 1932-7-13 10488 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  HSC45583  Phlox diffusa Diane L. Reed 1978-5-27 123 Humboldt Horse Mtn., Titlow Hill Rd., 3.4 mi. from junction with S.R. 299 Comment
  UC908462  Phlox gracilis Joseph P. Tracy 1930-6-21 8791 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC1222725  Phlox gracilis Joseph P. Tracy 1950-5-7 18648 Humboldt head of Valley of South Yager Creek Valley of South Yager Creek 762 Comment
  CAS-BOT-BC60608  Phoenicaulis cheiranthoides Thomas W. Nelson; James L. Nelson 1980-6-10 s.n. Humboldt Along Swayback Ridge 4-wheel drive road ca. 2.5 miles north of junction with Forest Service Road 1S07. 1463 Comment
  HSC36216  Phoradendron serotinum subsp. tomentosum John Rehling 1975-11-8 109 Humboldt Near Berry Summit, just off Hwy. 299 Comment
  UC526853  Phragmites australis Joseph P. Tracy 1934-6-18 13226 Humboldt at Railroad Station Eureka; Northern Coast Ranges, Eureka 0 Comment
  RSA683018  Phyllospadix scouleri R. Setzer 1972-7-29 7010 Humboldt Palmer Point; Patrick s Point State Park. Comment
  JEPS386  Phyllospadix torreyi Joseph P. Tracy 1938-9-9 16146 Humboldt Trinidad Comment
  CAS-BOT-BC140583  Physocarpus capitatus L. R. Abrams 1918-6-15 7129 Humboldt Brannan Mt near Willow Creek Comment
  RSA46805  Physocarpus capitatus Doris K. Kildale 1927-5-15 3158 Humboldt Petrolia Comment
  LA206239  Picea sitchensis Carl Epling; William Robison 1935-7-22 sn Humboldt near Patrick's Point Comment
  UC136  Picea sitchensis J. P. Tracy 1901-4-17 Humboldt Samoa, Humboldt Bay Comment
  UC535711  Picea sitchensis Eleanor Armstrong 1934-7-31 1145 Humboldt Patricks Point 30 Comment
  UC55646  Picea sitchensis J. Burtt Davy 1899-7-30 6186 Humboldt in gulches in back Ferndale; North Coast Ranges Comment
  CAS-BOT-BC78287  Pinus attenuata Henry M. Pollard 1947-9-1 s.n. Humboldt Ridge approaching Somes Peak, Orleans region 1219 Comment
  UC400254  Pinus contorta subsp. contorta J. P. Tracy 1901-2-1 Humboldt opp. Eureka (sand hills of Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  NY49723  Pinus contorta var. contorta H. E. Parks 05 1931 s.n. Humboldt Samoa, Pine Barrens Comment
  RSA286309  Pinus contorta var. contorta Robert F. Thorne 1974-7-29 45083 Humboldt Somoa Dunes. Comment
  RSA46681  Pinus contorta var. contorta Doris K. Kildale 1937-8-12 15084 B Humboldt South Fork Mountain. Comment
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Jun 21 2012
  UC502910  Pinus muricata Joseph P. Tracy 1929-11-3 8685 Humboldt 1 1/2 mi e and ne Trinidad; Northern Coast Region 60 Comment
  UC55658  Pinus ponderosa P. E. Goddard 1901-7-12 67 Humboldt Hupa Comment
  UC180192  Piperia elegans Joseph P. Tracy 1914-8-30 4596 Humboldt Humboldt Bay Northern Coast Region Comment
  UC13529  Piperia unalascensis Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC666985  Piperia unalascensis Joseph P. Tracy 1932-7-12 10453 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  HSC48733  Pityopus californicus J. Pageau, T. Jimerson, W. Wisler, A. Regalis 1979-6-13 519 Humboldt Off FS 10N05. SE slope of Hopkins Butte. Bulk Collection 181 1037 Comment
  JEPS61032  Plagiobothrys hispidulus Joseph P. Tracy 1935-7-25 14226 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC79417  Plagiobothrys nothofulvus Kenneth Clark 1980-4-18 585 Humboldt On Coastal Bluffs above Dead Man's Gulch 137 Comment
  RSA80192  Plagiobothrys reticulatus Alice Eastwood, J. T. Howell 1937-6-23 4811 Humboldt Little Van Duzen River. Comment
  UC552836  Plagiobothrys reticulatus Joseph P. Tracy 1935-6-8 13949 Humboldt along coast in front of s end Stone Lagoon; Dry Lagoon, Stone Lagoon 3 Comment
  UC552846  Plagiobothrys reticulatus Joseph P. Tracy 1935-5-25 13860 Humboldt Fort Seward 106 Comment
  UC668232  Plagiobothrys reticulatus Joseph P. Tracy 1938-6-9 15890 Humboldt top of ridge 3 mi w Harris 914 Comment
  OBI20599  Plagiobothrys scouleri Joseph P. Tracy 1949-6-25 18353 Humboldt Trinity summit, meadow at Box Camp Comment
  UC1239616  Plagiobothrys tenellus Joseph P. Tracy 1932-6-26 10267 Humboldt Valley of South Yager Creek 762 Comment
  UC1222194  Plagiobothrys trachycarpus Joseph P. Tracy 1942-5-16 17355 Humboldt 1 mi ne Garberville 304 Comment
  HSC16824  Plantago erecta R. T. Forester 1963-4-30 14 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  UC1196145  Plantago erecta Joseph P. Tracy 1946-6-2 17553 Humboldt near Samoa; Humboldt Bay 6 Comment
  UC1196136  Plantago erecta Joseph P. Tracy 1900-6-5 836 Humboldt Busksport Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC26370  Plantago lanceolata T. O. Osborne 1970-9-16 64 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC16843  Plantago lanceolata N. R. Waite 1965-5-19 51 Humboldt W edge of Humboldt State University campus. Comment
  HSC62906  Plantago maritima J. M. DiTomaso 1979-5-20 1057 Humboldt Above College Cove at Elks Head, 1 mi. N of Trinidad. Comment
  UC585995  Plantago subnuda Joseph P. Tracy 1933-6-6 12499 Humboldt Trinidad 3 Comment
  POM312378  Plantago subnuda Malcolm A. Nobs, S. Galen Smith 1949-8-3 1188 Humboldt Southern outskirts of Eureka Comment
  SBBG51158  Platanthera dilatata var. leucostachys R. S. Woglum 1937-8-29 2037 a Humboldt State Park grounds S of Trinidad Comment
  SEINET10296821  Platanthera dilatata var. leucostachys Unknown 1933-1 Humboldt Comment
  HSC99478  Platanthera sparsiflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 137 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), between Six Rivers National Forest boundary and Box Camp 1433 Comment
  UC1196416  Platanthera sparsiflora Joseph P. Tracy 1926-6-27 7671 Humboldt House Mountain Northern Coast Ranges 1463 Comment
  RSA12558  Platanthera stricta Carl B. Wolf 1934-7-2 5881 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  CAS-BOT-BC91636  Platystemon californicus Joseph P. Tracy 1932-6-26 10266 Humboldt Northern Coast Region.. Valley of South Yager Creek. 762 Comment
  CDA24588  Platystemon californicus E. Cohen 2002-4-15 21 Humboldt Eureka. Comment
  POM149391  Platystemon californicus var. californicus Joseph P. Tracy 1904-4-24 2020 Humboldt Sand dunes of ocean beach at Humboldt Bay, Northern Coast Region. Comment
  UC602508  Plectritis brachystemon Joseph P. Tracy 1933-5-20 12250 Humboldt Northern Coast Ranges, Mattole Valley Mattole Valley; Northern Coast Ranges, Mattole Valley 60 Comment
  UC1239606  Plectritis congesta Joseph P. Tracy 1923-5-20 6216 Humboldt Kneeland Prairie 762 Comment
  HSC100117  Pleuricospora fimbriolata Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  HSC63844  Pleuricospora fimbriolata M. A. Baker 1979-6-29 953 Humboldt 900 Comment
  UC552670  Pleuropogon californicus Joseph P. Tracy 1935-5-25 13846 Humboldt Fort Seward 106 Comment
  HSC57302  Pleuropogon refractus W. C. Overton 1979-8-1 12344 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa 1341 Comment
  UCD90108  Pleuropogon refractus Joseph P. Tracy 1951-6-26 19560 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road.) Comment
  SEINET200752  Pneumonanthe oregana J. P. Tracy 1904-8-7 2140 Humboldt Immediate vicinity of Eureka. 0 Comment
  HSC89595  Poa annua M. Roantree 1985-5-2 29 Humboldt S side of Trinidad Head summit, near cross. Comment
  UCD90242  Poa annua Linda M. Barker 1976-4-30 1399 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC10638  Poa bolanderi J. P. Tracy 1932-7-12 10464 Humboldt Trinity Summit, head of Brett Hole. 1829 Comment
  HSC97639  Poa bulbosa Cara Witte 2007-5-22 77 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1398 Comment
  UC1132594  Poa bulbosa H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quadrangle Comment
  HSC10672  Poa compressa J. P. Tracy 1925-7-5 7182 Humboldt High Prairie on Bald Mtn. 1067 Comment
  UC525617  Poa compressa Joseph P. Tracy 1925-7-5 7182 Humboldt High Prairie on Bald Mt; Northern Coast Ranges 1066 Comment
Read comments
Jul 18 2012
  CAS-BOT-BC255848  Poa kelloggii Joseph P. Tracy 1906-5-20 2463 Humboldt Near Eureka, region about Humboldt Bay 152 Comment
  SEINET190491 Image available Poa macrantha H. E. Parks 1934-5-1 4805 Humboldt Little River Lagoon Comment
  UCD91548  Poa macrantha Joseph P. Tracy 1947-7-3 17766 Humboldt at mouth of Little River. 6 Comment
  RSA54930  Poa macrantha W. A. Silveus 1938-7-10 6912 Humboldt North of Eureka Comment
  HSC70247  Poa pratensis M. A. Baker 1980-6-8 1916 Humboldt Near Buck Flat. 1554 Comment
  HSC98173  Poa pratensis R. D. Modafferi 1965-5-13 77 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  HSC98530  Poa pratensis subsp. pratensis Cara Witte 2007-7-8 442 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  SEINET10855248  Poa scabrella Joseph P. Tracy 1913-6-14 Tracy 4120 Humboldt Dinsmore's Ranch; In Valley of Van Duzen River Opposite Buck Mountain,. Moist places along river. 762 Comment
  HSC98797  Poa secunda subsp. secunda Cara Witte 2008-6-11 712 Humboldt National Forest Road 5N10. 2.5 miles south of intersection with Forest Service Road 5N41. 1303 Comment
  UC1256295  Poa secunda subsp. secunda R. K. Gierisch and D. H. Esplin 1969-7-1 3537 Humboldt Grouse Mt; Six Rivers Forest/Experimental Area Comment
  BLMAR18  Poa unilateralis Brad Barr June, 1982 18 Humboldt King range, Barksdale Table Comment
  UCD92128  Poa unilateralis Harley P. Chandler 1901-5-1 1140 Humboldt Humboldt Bay. 3 Comment
  CAS-BOT-BC232888  Polemonium carneum Carl B. Wolf 1937-8-10 9093 Humboldt Big Lagoon, S side. W of Redwood Highway 6 Comment
  UC1191118  Polemonium carneum Joseph P. Tracy 1928-5-20 8440 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  HSC48881  Polycarpon tetraphyllum J. P. Smith, Thomas W. Nelson 1977-6-30 9222 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC17227  Polygala californica B. D. Rogers, William J. Ferlatte 1966-6-15 2094 Humboldt Near Bridgeville Comment
  HSC44772  Polygala californica Thomas W. Nelson, Jane P. Nelson 1977-7-4 3585 Humboldt W side of road N from Alder Springs 1494 Comment
  HSC99257  Polygala californica D. E. Anderson 1965-5-1 3570 Humboldt Along Bluff Creek Rd., 2 mi. from its junction with Hwy. 96 Comment
  UC179957  Polygonum bistortoides Joseph P. Tracy 1914-7-4 4536 Humboldt Bald Mountain Northern Coast Ranges (High Prairie) 1066 Comment
  JEPS50635  Polygonum lapathifolium W. L. Jepson 1921-8-7 9334 Humboldt Stone Lagoon Comment
  RSA178533  Polygonum minimum Joseph P. Tracy 1950-8-8 19281 Humboldt On trail betw Box Camp and Croghon Hole. 1677 Comment
  HSC17520  Polygonum paronychia R. T. Forester 1963-3-21 31 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC90239  Polygonum paronychia L. Watson, J. Meninga Mar 1991 18 Humboldt Near Manila, Mad River Slough and Dunes, SW edge of parking lot Comment
  RSA191950  Polygonum paronychia Robert F. Thorne 1957-9-3 19013 Humboldt Little River Beach, few miles S of Trinidad. Comment
  RSA65853  Polygonum paronychia F. W. Peirson 1941-7-29 13109 Humboldt old sand dune back of beach at Little River Beach State Park Comment
  JEPS50637  Polygonum persicaria Lincoln Constance 1934-6-12 861 Humboldt Bull Cr. road and N. bank of river; South Fork Eel River, Bull Creek Region Comment
  HSC45463  Polygonum polygaloides subsp. kelloggii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4391 Humboldt SE of East peak of the Mount Lassic group 1616 Comment
  UCD100641  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Trinity Summit, Corral Prairie. 1584 Comment
  HSC99101  Polygonum polystachyum Cara Witte 2007-6-12 244 Humboldt Intersection of 4N70 and 4N32. Intersection to Grouse Mountain Lookout. 1628 Comment
  HSC54663  Polygonum spergulariiforme Overton, Butler 1979-7-25 9905 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  CAS-BOT-BC71831  Polypodium californicum Ira L. Wiggins 1957-6-21 14141 Humboldt E side of road, 1 mi. S of Garberville Comment
  HSC45868  Polypodium glycyrrhiza J. P. Smith 1971-10-6 4984 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC67085  Polypodium glycyrrhiza Richard Spjut 1980-5-20 6199 Humboldt 2 mi. W of Willow Creek along Hwy. 299 below Boise Campground near stream 305 Comment
  RSA24197  Polypodium glycyrrhiza C. B. Wolf 1941-3-1 9976 Humboldt 4 mi NE of Strongs Station (Van Duzen River) on Rd. to Yager 152 Comment
  UC163333  Polypodium glycyrrhiza J. P. Tracy 1909-10-7 3113 Humboldt near Redwood Creek Redwood Creek; Bald Hills 609 Comment
  UC71483  Polypodium scouleri W. C. Blasdale 1896-6-2 Humboldt w Eureka Comment
  HSC1112  Polypodium scouleri D. E. Anderson 1962-2-10 1918 Humboldt Old Hwy. 101, S of Trinidad Comment
  RSA10020  Polypogon interruptus Joseph P. Tracy 1927-7-16 8259 Humboldt Eureka. 0 Comment
  UC1145088  Polypogon maritimus Joseph P. Tracy 1939-8-5 16377 Humboldt opposite Buck Mountain (along Van Duzen River, Dinsmore's); along Van Duzen River, opposite Buck Mountain 762 Comment
  CAS-BOT-BC232593  Polypogon monspeliensis Doris K. Kildale 1927-6-25 3546 Humboldt Shelter Cove Comment
  HSC10847  Polypogon monspeliensis R. H. Berg 1963-4-30 61 Humboldt Junction of Samoa Road and Hwy. 101, Arcata. Comment
  HSC38921  Polypogon monspeliensis Linda M. Barker 1976-6-22 1625 Humboldt 3 mi. W of Arcata Comment
  UC34074  Polypogon monspeliensis J. P. Tracy 1900-7-4 893 Humboldt sand hills of Ocean Beach at Samoa (opp. Eureka); Ocean Beach Comment
  UCD91220  Polypogon monspeliensis Linda M. Barker 1976-6-22 1625 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC70749  Polystichum imbricans R. York 1980-5-17 534 Humboldt Near Le Perron Peak 1066 Comment
  HSC74744  Polystichum imbricans Gail Newton 1981-8-7 2425 Humboldt Near Bug Creek Butte 1244 Comment
  HSC76296  Polystichum imbricans Michael Ericksen 1981-8-24 1094 Humboldt Near Pilot Creek 951 Comment
  UCD39987  Polystichum imbricans subsp. curtum Rodney Gale Myatt 1971-9-22 1198 B Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  CAS-BOT-BC76764  Polystichum imbricans subsp. imbricans Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. Comment
  SD92985  Polystichum imbricans subsp. imbricans W. Bertsch 1953-7-29 215 Humboldt near Weott, Highway 101 60 Comment
  RSA693276  Polystichum lonchitis Anstruther Davidson 1923-8-10 17060 Humboldt Near Bridgeville Comment
  UC1440061  Polystichum munitum Danin & H. G. Baker 1960-8-14 626 Humboldt n slope Eel Rock Rd. Eel Rock Rd. Comment
  CAS-BOT-BC410007  Populus X parryi Joseph P. Tracy 1932-5-1 9895 Humboldt Vicinity of Garberville 121 Comment
  CAS-BOT-BC102907  Populus trichocarpa Doris K. Kildale 1926-8-8 2471 Humboldt Dyerville Bridge 45 Comment
  HSC36290  Potamogeton natans W. C. Vinyard 1974-1 Humboldt N Clam Beach Pond Comment
  CAS-BOT-BC453764  Potamogeton natans Doris K. Kildale 1926-6-6 2124 Humboldt Gold Bluffs Comment
  BLMAR306  Potentilla anserina subsp. pacifica Jennifer Anthony-Wheeler 2002-7-1 306 Humboldt South Spit 6 Comment
  CAS-BOT-BC143077  Potentilla anserina subsp. pacifica L. R. Abrams 1916-7-18 6130 Humboldt Arcata to Trinidad Comment
  HSC44619  Potentilla anserina subsp. pacifica Laura Witherspoon 1977-5-25 Humboldt Manila Comment
  UC637136  Potentilla anserina subsp. pacifica Annetta Carter 1934-8-17 719 Humboldt 35 mi n Eureka (e shore of Big Lagoon); e shore of Big Laoon, n of Eureka 3 Comment
  HSC100633  Potentilla glandulosa Carl C. Marshall Jun 1887 447 Humboldt Spruce Grove. Comment
  HSC98882  Potentilla gracilis var. fastigiata Cara Witte 2008-7-30 962 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  CAS-BOT-BC540160  Potentilla gracilis var. fastigiata Doris K. Kildale 1925-8-17 1232 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  UC279095  Potentilla gracilis var. gracilis H. E. Parks 1925-6-17 Humboldt Kneeland Comment
  SBBG58721  Prosartes hookeri R. Hartwell 1938-8-4 107 Humboldt Bull Crk Flat Comment
  HSC97464  Prosartes hookeri Cara Witte 2007-5-31 149 Humboldt Road to Board Camp Mountain Lookout. Along 4N38. 1/2 mile south of intersection with National Forest 1. 1330 Comment
  UCD139801  Prosartes hookeri Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of Eel River. Comment
  HSC15477  Prosartes smithii H. E. Parks 1935-3 5582 Humboldt Trinidad Comment
  CAS-BOT-BC517502  Prosartes smithii Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC517513  Prosartes smithii Michael A. Hanson 1990-5-21 70 Humboldt 0.5 miles (0.8 km) east of Humboldt State University Life Science Building in Arcata near a stream in Redwood Forest. Comment
  UC577359  Prunella vulgaris var. lanceolata Joseph P. Tracy 1935-5-25 13868 Humboldt Fort Seward 106 Comment
  UCLA49214  Prunella vulgaris var. lanceolata Joseph P. Tracy 1937-6-28 15370 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC1174866  Prunella vulgaris var. lanceolata P. C. Everett and E. K. Balls 1959-10-25 23961 Humboldt U.S. Hwy 299 to Arcata 14 mi w Willow Creek; w of Willow Creek 502 Comment
  UC1402050  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-19 630 -20 Humboldt Comment
  CAS-BOT-BC159980  Prunus emarginata Joseph P. Tracy 1934-9-5 13656 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC159981  Prunus emarginata Joseph P. Tracy 1933-6-13 12571 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  CAS-BOT-BC159985  Prunus emarginata L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road Comment
  UC14175  Prunus virginiana var. demissa W. C. Blasdale 1896-6-8 Humboldt Mad River 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
  HSC99550  Pseudotsuga menziesii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 215 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1223166  Psilocarphus tenellus Joseph P. Tracy 1950-6-29 18937 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC1165  Pteridium aquilinum var. pubescens Elrid H. Spinas 1948-6-16 67 Humboldt Horse Mtn. 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
  HSC36274  Pteridium aquilinum var. pubescens John Rehling 1974-7-8 11 Humboldt Along Bald Hills Rd. 23.5 mi. from Hwy. 101 Comment
  UC672932  Pterostegia drymarioides Joseph P. Tracy 1933-5-20 12226 Humboldt s point of cape; Cape Mendocino 3 Comment
  HSC59503  Pyrola asarifolia M. A. Ericksen 1979-5-29 306 Humboldt Beside Patrick's Point Dr. Comment
  HSC55263  Pyrola crypta Overton, Butler 1979-8-2 12608 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC314638  Pyrola picta Joseph P. Tracy 1926-6-6 7556 Humboldt near summit on road w from Hoopa to Bair's, Hoopa Mountain, Northern Coast Ranges Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  CAS-BOT-BC62630  Quercus chrysolepis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC41267  Quercus chrysolepis Brad Klipfel 1974-7-23 461 Humboldt Horse Mtn. Comment
  HSC41321  Quercus chrysolepis Brad Klipfel 1974-9-2 526 Humboldt Horse Mountain Comment
  UC1193252  Quercus garryana P. Zinke 1950-8-3 144 Humboldt 914 Comment
  UC175930  Quercus garryana Joseph P. Tracy 1912-7-31 3930 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC249714  Quercus garryana Joseph P. Tracy 1921-10-2 5965 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC502986  Quercus garryana Joseph P. Tracy 1928-9-30 8514 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC54687  Quercus garryana Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  UC54712  Quercus garryana P. E. Goddard 1901-7-12 68 Humboldt Hupa Comment
  UCD46719  Quercus kelloggii Lincoln Constance 1934-5-29 738 Humboldt Upper Look Prairie, south fork Eel River, Humboldt County, California. 365 Comment
  UCD165092  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 42.5 mi. from Garberville along Alderpoint Rd. 481 Comment
  SBBG115525  Quercus sadleriana G. J. Muth 1972-8-15 1845 Humboldt near Big Hill Rd 1431 Comment
  HSC55117  Quercus vacciniifolia Gilbert Muth 1979-8-1 11892 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC74708  Ranunculus aquatilis var. aquatilis Gail Newton 1981-8-6 2400 Humboldt Near Humbug Creek 1256 Comment
  CAS-BOT-BC379173  Ranunculus aquatilis var. aquatilis Joseph P. Tracy 1937-5-30 15311 Humboldt Larrabee Creek; in shallow pond near Bosworth's 366 Comment
  HSC18144  Ranunculus californicus var. californicus T. M. Mingo May 1965 Humboldt W of Fairhaven Dr. intersection with Hwy. 101 Comment
  UC184237  Ranunculus flammula Joseph P. Tracy 1912-7-21 3786 Humboldt Alton Northern Coast Region 30 Comment
  RSA183644  Ranunculus hebecarpus D. E. Anderson 1965-5-8 3628 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along Highway 299 Comment
  UC1196212  Ranunculus occidentalis J. P. Tracy 1901-5-5 1066 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC18159  Ranunculus occidentalis var. occidentalis A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction: N Bank; 100 yards W of Lindsey Creek Comment
  HSC18166  Ranunculus occidentalis var. occidentalis D. E. Anderson 1962-5-1 2190 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  HSC30324  Ranunculus occidentalis var. occidentalis Dale R. Gradek 1974-4-16 11 Humboldt 7 mi. E of Blue Lake on rd. adjacent to Hwy. 299 305 Comment
  HSC39588  Ranunculus occidentalis var. occidentalis Thomas W. Nelson, James Nelson 1976-6-22 2807 Humboldt Around Senteney Rock 1524 Comment
  UC118220  Ranunculus orthorhynchus var. orthorhynchus J. W. Blankinship 1893-6-15 Humboldt Yager Comment
  POM172654  Ranunculus orthorhynchus var. platyphyllus V. King Chesnut, E. R. Drew 1888-7-20 s.n. Humboldt Pilot Creek Comment
  UC162817  Ranunculus pusillus Joseph P. Tracy 1903-5-24 1912 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  SDSU10122  Ranunculus repens D. F. Howe 1962-5-22 3306 Humboldt Orick. 30 Comment
  UC1191438  Ranunculus repens Malcolm A. Nobs and S. Galen Smith 1949-8-3 1184 Humboldt Eureka; marsh and bog land at southern outskirts Comment
  CDA3482  Ranunculus repens T. C. Fuller 1968-7-3 17442 Humboldt North side of Elk River Road, 2 miles east of Highway 101 freeway, ca. 5 miles south of Eureka. 0 Comment
  HSC56061  Ranunculus uncinatus G. L. Clifton, Griswold 1979-7-31 11703 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  POM246499  Rhamnus californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter cove. 61 Comment
  JEPS41976  Rhamnus purshiana W. L. Jepson 1936-8-18 17942 Humboldt Wildcat Ridge, w Humboldt Co. Wildcat Ridge Comment
  POM257951  Rhamnus purshiana H. E. Parks, S. T. Parks 1937-06 24018 Humboldt Spruce Cove, Trinidad. Comment
  RSA2933  Rhamnus purshiana Carl B. Wolf 1931-8-30 2373 Humboldt E side of Eureka on P st, on block N of Henderson Street. 30 Comment
  UC726369  Rhamnus purshiana A. A. Heller 1923-7-9 13775 Humboldt 5 mi from Arcata (near Blue Lake) Comment
  RSA8096  Rhamnus tomentella subsp. tomentella Doris K. Kildale 1928-10-7 6754 Humboldt Trinity River at mouth of Willow Creek Comment
  RSA471003  Rhododendron macrophyllum E. S. Spalding 1925-04 s.n. Humboldt Arcata. Comment
  SD56746  Rhododendron macrophyllum Darley F. Howe 1963-5-26 3552 Humboldt 3.2 miles east of Orick on Bald Hill Road. 459 Comment
  UC725903  Rhododendron macrophyllum A. A. Heller 1937-6-8 15898 Humboldt 3 mi n of Trinidad (at Bishop Pine Lodge); Bishop Pine Lodge Comment
  JEPS58767  Rhododendron occidentale Joseph P. Tracy 1926-6-27 7663 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1463 Comment
  CAS-BOT-BC200386  Rhododendron occidentale var. paludosum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC200390  Rhododendron occidentale var. paludosum Carl B. Wolf 1927-8-28 1174 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  HSC7887  Rhododendron occidentale var. paludosum F. B. Plett 1963-4-27 36 Humboldt 1 1/2 mi. N of Trinidad along old Hwy. 101 Comment
  HSC96519  Rhododendron occidentale var. paludosum Gordon Leppig 1998-5-11 759 Humboldt Big Lagoon County Park. 3 Comment
  CAS-BOT-BC433139  Ribes Doris Kildale Gillespie 1931-6-7 10638 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  JEPS79963  Ribes binominatum Joseph P. Tracy 1932-7-13 10487 Humboldt near Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  HSC103223  Ribes divaricatum var. pubiflorum Jade Paget-Seekins 2010-3-20 7 Humboldt On the Mad River. In the park next to the water treatment plant. 13 Comment
  RSA152409  Ribes inerme Joseph P. Tracy 1941-3-26 16813 Humboldt Lack Pond: in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  UC1541294  Ribes lobbii W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  HSC58085  Ribes marshallii G. L. Clifton, Griswold 1979-8-1 11991 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  RSA84966  Ribes marshallii Joseph P. Tracy 1932-7-15 10592 Humboldt Ridges east of Corral Prairie; Trinity Summit Comment
  CAS-BOT-BC206032  Ribes menziesii Harold E. Parks 1933-4-1 4402 Humboldt McNeils Creek, vicinity of Trinidad Comment
  CAS-BOT-BC206042  Ribes menziesii A. A. Heller 1924-7-24 s.n. Humboldt Near Humboldt County camp on the redwood highway 7 miles south of Trinidad Comment
  HSC20315  Ribes menziesii D. E. Anderson 1962-3-17 1940 Humboldt 1.0 mi. SE of Korbel along rd. to Maple Creek Comment
  JEPS49220  Ribes menziesii Jos. P. Tracy 1921-3-13 5421 Humboldt near Alton (Drake's Hill) 30 Comment
  UC1198931  Ribes menziesii J. P. Tracy 1905-3-26 2153 Humboldt immediate vicinity Eureka 0 Comment
  BLMAR666  Ribes menziesii var. menziesii Jennifer Wheeler 2012-7-12 666 Humboldt King range, Strawberry rock 253 Comment
  HSC71034  Ribes roezlii Thomas W. Nelson 1977-4-20 3326 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  HSC77394  Ribes roezlii var. cruentum L. P. Janeway 1983-4-16 236 Humboldt Along Titlow Hill Rd. 100 m S from Hwy. 299, Berry Summit 854 Comment
  UC902113  Ribes roezlii var. cruentum Joseph P. Tracy 1949-8-11 18449 Humboldt e Korbel (at Hungry Hollow); Bald Mountain 762 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
  UC1563694  Ribes sanguineum Barbara Ertter with Thomas J. Delendick 1987-5-16 6939 Humboldt ca. 3 mi e Berry Summit (on Hwy 299, on s side of road above Willow Cr., ca. 20 air mi e of Arcata) 800 Comment
  UC667053  Ribes sanguineum Joseph P. Tracy 1935-7-25 14246 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC144693  Ribes sanguineum var. glutinosum Doris K. Kildale 1927-5-1 3116 Humboldt Blocksburg 518 Comment
  HSC36281  Ribes sanguineum var. glutinosum Barbara Kelly 1976-3-9 248 Humboldt Above Mad River at edge Comment
  UC1198910  Ribes sanguineum var. glutinosum Joseph P. Tracy 1928-4-22 8412 Humboldt Willow Creek Canyon Northern Coast Ranges 762 Comment
  HSC103229  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-6-23 26 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  HSC100719  Ribes viscosissimum Carl C. Marshall Jun 1886 325 Humboldt Trinity Summit. Comment
  HSC58107  Ribes viscosissimum G. L. Clifton, Griswold 1979-8-1 12042 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  JEPS79969 Image available Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  UC1222908  Rigiopappus leptocladus Joseph P. Tracy 1948-6-13 18059 Humboldt 3 mi w Harris 762 Comment
  CAS-BOT-BC147436  Rosa californica L. R. Abrams 1918-6-16 7161 Humboldt Willow Creek Comment
  CAS-BOT-BC146476  Rosa gymnocarpa Alice Eastwood; John Thomas Howell 1937-6-23 4798 Humboldt Near Dinsmores Comment
  CAS-BOT-BC146528  Rosa gymnocarpa M. S. Jussel 1931-5-2 67 Humboldt 20 miles north of Garberville Comment
  HSC57039  Rosa gymnocarpa Overton, Butler 1979-7-24 9675 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  JEPS47241  Rosa gymnocarpa W. L. Jepson 1932-7-30 16462 Humboldt Bull Creek 121 Comment
  UC1199036  Rosa gymnocarpa Joseph P. Tracy 1908-6 2730 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC467683  Rosa gymnocarpa Mrs. M. H. Manning 1901-6-7 61 Humboldt Hupa Comment
  LA208224  Rosa nutkana H. Lewis; 1940-7-3 sn Humboldt Dry lagoon Beach, State Park Comment
  SBBG3090  Rosa nutkana M. J. Cody 1938-7-14 Humboldt 2 mi N of Trinidad Comment
  UC12912  Rosa nutkana var. nutkana Harley P. Chandler May, 1901 1198 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC902155  Rosa pisocarpa Joseph P. Tracy 1947-8-24 17890 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC673070  Rubus Joseph P. Tracy 1940-10-17 16762 Humboldt near Dyerville (South Fork Station); South Fork Station (near Dyerville) 48 Comment
  HSC12760  Rubus armeniacus M. J. Athey 13 Oct [year missing] 15 Humboldt Trinidad Comment
  BLMAR469  Rubus leucodermis Jennifer Anthony-Wheeler 2004-11-8 469 Humboldt Titlow Hill, growing along Titlow Hill road off Hwy 300 914 Comment
  JEPS44748  Rubus leucodermis W. L. Jepson 1902-7-25 2122 Humboldt Supply Creek , Supply Creek (Hupa Valley) 243 Comment
  UC906703  Rubus parviflorus Harold E. Parks and Joseph P. Tracy 1942-5-16 11562 Humboldt vicinity Garberville; vicinity of Garberville 152 Comment
  SEINET5265376  Rubus parviflorus Unknown 1938-8-6 15397 Humboldt Eureka Comment
  BLMAR240  Rubus pensilvanicus Jennifer Anthony-Wheeler 1997-6-13 240 Humboldt King range, growing at base of N bank of S fork bear creekbed 463 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
  JEPS44771  Rubus spectabilis Joseph P. Tracy 1923-4-15 6192 Humboldt at Berry's Northern Coast Ranges, Redwood Creek (Redwood Creek) 274 Comment
  RSA183527  Rubus spectabilis M. L. Stuart 1965-4-25 20 Humboldt About 100 yards up the Fern Lake Road. Comment
  UC1199045  Rubus spectabilis Joseph P. Tracy 1920-2-29 5311 Humboldt at Eureka Northern Coast Ranges, at Eureka 0 Comment
  UC1199047  Rubus spectabilis Joseph P. Tracy 1939-7-9 16336 Humboldt Snow Camp 1402 Comment
  RSA613682  Rubus spectabilis var. franciscanus D. D. Keck, J. Clausen 1935-6-16 3394 Humboldt Mouth of Little River. Comment
  HSC19696  Rubus ursinus Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC34808  Rubus ursinus David Peters 1975-4-9 5 Humboldt .1 mi. E of Kirkpatrick Quarry Rd. on Jacoby Cr. Rd. Comment
  HSC99432  Rubus ursinus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 81 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCD17838  Rubus ursinus H. Olmo 8-10 May 1962 62- 35 Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. 670 Comment
  UCD17930  Rubus ursinus H. Olmo; T. S. Mallah 1953-4-3 53- 59 A Humboldt California. Humboldt County: Jordan Street in Rohnerville. In city limits, 0.5 blocks west of the north side of the Richfield filling station. Comment
  HSC17576  Rumex acetosella W. F. Nickel 1965-4-22 Humboldt HSC campus behind biological science building Comment
  HSC73636  Rumex californicus M. A. Baker 1980-7-22 3128 Humboldt Near Grogan Hole. 1676 Comment
  UC249658  Rumex maritimus Joseph P. Tracy 1921-8-7 5867 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  UC55520  Rumex obtusifolius Joseph Burtt Davy 1899-7-30 6169 B Humboldt near Ferndale Comment
  HSC17617  Rumex obtusifolius David K. Smith 1968-11-20 72 Humboldt At jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  HSC99577  Rumex occidentalis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 242 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
  JEPS39873  Rumex occidentalis Milo S. Baker 1923-8-4 177 Humboldt s end Stone Lagoon Comment
  UC296201  Ruppia maritima H. E. Parks 1757 Humboldt Little River Lagoon Comment
  CAS-BOT-BC454159  Ruppia maritima Robert F. Thorne; P. Everett 1965-8-7 35208 Humboldt Samoa Peninsula: Elev. c. near sea level Comment
  HSC17818  Ruppia maritima R. W. Spjut 1968-10-26 227 Humboldt E edges of the salt water at Big Lagoon near the launching ramp area Comment
  UCD138323  Ruppia maritima Malcolm A. Nobs; S. Galen Smith 1949-8-3 1181 Humboldt Near mouth of the Elk River on Highway 101, ca. 4 miles south of Eureka. Comment
  UCD92348  Rytidosperma penicillatum A. H. Murphy 1947-6-1 s.n. Humboldt Parrott's Ranch, Table Bluff, ca. 1.5 miles north of Loleta. Comment
  UC161047  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1905-5-2 2181 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UCD99147  Salicornia pacifica Gordon Leppig 1998-8-6 995 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary. On Humboldt bay side of Klopp Lake dike. 2 Comment
  CAS-BOT-BC132707  Salix A. T. Whittemore 1979-4-5 79 -013 Humboldt Arcata, along Alliance Road immediately north of Arcata High School 6 Comment
  CAS-BOT-BC129884  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC129888  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 271 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC129897  Salix bonplandiana Joseph P. Tracy 1933-6-9 12528 Humboldt Shively, along Eel River - Northern Coast Ranges 30 Comment
  UC512020  Salix exigua var. hindsiana C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1337 Humboldt at Willow Creek (Graham Ranch) near its junction with Trinity R. 152 Comment
  CAS-BOT-BC104116  Salix hindsiana Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC106852  Salix hookeriana Harold E. Parks 1931-5-12 0952 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC106863  Salix hookeriana W. J. Ferlatte 1967-6-13 1121 Humboldt Moonstone coastal bluff 30 Comment
  CAS-BOT-BC107730  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Eel River, Fortuna 10 Comment
  CAS-BOT-BC107731  Salix hookeriana Harold E. Parks 1931-3-26 904 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC107735  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107740  Salix hookeriana Joseph P. Tracy 1931-8-23 9616 Humboldt Sand dunes, near Samoa 6 Comment
  CAS-BOT-BC107741  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt Sand dunes, near Samoa 6 Comment
  CAS-BOT-BC107745  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1216 Humboldt In pine barrens near the coast, 1 mile north of Samoa Comment
  CAS-BOT-BC107772  Salix hookeriana Harold E. Parks; Susan T. Parks 1932-4-10 1103 a Humboldt Little River Lagoon, Trinidad Comment
  HSC19965  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-5 1100 Humboldt Little River Comment
  HSC59397  Salix hookeriana Rick Lundquist 1979-4-27 44 Humboldt N spit along Samoa Rd., across from Samoa boat ramp 0 Comment
  LA208758  Salix hookeriana Harold E. Parks; August 1931 1053 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  POM161042  Salix hookeriana Joseph P. Tracy 1926-11-21 7831 Humboldt Near mouth of Little River. 6 Comment
  SD939  Salix hookeriana Harold E. Parks August 1931 1053 Humboldt Little River Lagoon Comment
  UC1196548  Salix hookeriana Joseph P. Tracy 1926-1-10 7344 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC1196556  Salix hookeriana Joseph P. Tracy 1937-4-11 15261 Humboldt along Eel Rl Camp Grant (2-5 mi e of the South Fork); S. Fork Eel R., Camp Grant 45 Comment
  UC1196631  Salix hookeriana J. P. Tracy 1904-4-3 2010 Humboldt Immediate vicinity of Eureka 0 Comment
  UC303030  Salix hookeriana Joseph P. Tracy 1926-3-14 7388 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC469113  Salix hookeriana Joseph P. Tracy 1931-8-23 9623 Humboldt sand dunes near Samoa (on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC506380  Salix hookeriana Joseph P. Tracy 1933-2-26 10912 Humboldt along S. Fork Eel River Miranda; Northern Coast Ranges, S. Fork Eel River 121 Comment
  UC518899  Salix hookeriana Jim Davis 1933-4-25 4 Humboldt around Eureka Comment
  JEPS14756  Salix laevigata Joseph P. Tracy 1932-5-22 10122 Humboldt between Miranda and Redway (S. Fork Eel River); North Coast Ranges 91 Comment
  UC490519  Salix laevigata Joseph P. Tracy 1932-5-1 9879 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  HSC37877  Salix lasiandra Thomas W. Nelson 1976-3-22 2279 Humboldt Cooper's Gulch near Franklin Elementary School Comment
  UC1196584  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1939-8-5 16394 Humboldt along Van Duzen R. at Dinsmore's; Van Duzen R. 737 Comment
  UC512103  Salix lasiandra subsp. lasiandra Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1209 Humboldt 4 1/2 mi. s. Trinidad (Little R. Lagoon); Little R. Lagoon Comment
  CAS-BOT-BC107588  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1318 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107597  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11007 Humboldt On Van Duzen River, two miles west of Bridgeville 228 Comment
  CHSC9560  Salix lasiolepis E. L. Smith 1971-4-7 930 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  CHSC96719  Salix lasiolepis Gordon Leppig 1999-4-15 1117 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC20005  Salix lasiolepis J. P. Tracy 1932-8-27 10753 Humboldt Blue Slide, Van Duzen River 91 Comment
  HSC56187  Salix lasiolepis Gilbert Muth 1979-8-1 12123 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC96365  Salix lasiolepis Gordon Leppig 1999-4-15 1123 Humboldt Big Lagoon County Park, Big Lagoon Bog, E fen edge 3 Comment
  JEPS12910  Salix lasiolepis Joseph P. Tracy 1927-3-27 7870 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  UC481314  Salix lasiolepis Harold E. Parks and Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150 Comment
  UC490542  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1932-8-13 10343 Humboldt 3 mi. e. Trinidad (on Luffenholz Creek); Northern Coast Region, Luffenholz Creek 60 Comment
  UC504027  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1320 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC506374  Salix lasiolepis Joseph P. Tracy 1933-4-9 10964 Humboldt Bridgeville 228 Comment
  UC506381  Salix lasiolepis Joseph P. Tracy 1933-2-26 10913 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River 121 Comment
  UC506390  Salix lasiolepis Joseph P. Tracy 1932-10-8 10867 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 Comment
  UC519327  Salix lasiolepis Joseph P. Tracy 1933-5-14 12178 Humboldt mouth of Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC107407  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-5-13 3149 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC107416  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-9-17 2802 Humboldt [Dobbyns] Dobbyn Creek Comment
  HSC20060  Salix melanopsis C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1237 Humboldt Van Duzen River at Blue Slide 91 Comment
  HSC20061  Salix melanopsis C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1234 Humboldt Van Duzen River, 1.5 mi. E of Alton 30 Comment
  SD914  Salix melanopsis Harold E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  UC1173582  Salix melanopsis Joseph P. Tracy 1939-8-5 16393 Humboldt Van Duzen R. at Dinsmore's; Van Duzen R. 737 Comment
  UC1173599  Salix melanopsis Joseph P. Tracy 1937-7-24 15507 Humboldt Mad R. at mouth of Lindsey Creek Lindsey Creek; Mad R. 15 Comment
  UC212983  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt mouth of Yager Creek; Northern Coast Region, Yager Creek 30 Comment
  UC481267  Salix melanopsis Harold E. Parks 1931-5-28 1025 Humboldt Little River Lagoon Comment
  UC481298  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 967 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC519369  Salix melanopsis Joseph P. Tracy 1933-7-22 12824 Humboldt S. Fork Eel R. at mouth of Bull Creek; Northern Coast Ranges, S. Fork Eel R. 45 Comment
  CAS-BOT-BC129139  Salix scouleriana Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  JEPS12944  Salix scouleriana Joseph P. Tracy 1929-10-20 8680 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  JEPS38417  Salix scouleriana W. L. Jepson 1932-8-1 16466 Humboldt Bull Creek 121 Comment
  JEPS89298  Salix scouleriana Joseph P. Tracy 1937-3-21 15236 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  POM209564  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Grove (Parks Ranch). Trinidad. Comment
  UC1173576  Salix scouleriana Joseph P. Tracy 1936-2-2 14767 Humboldt vicinity of Carlotta 30 Comment
  UC1196711  Salix scouleriana Joseph P. Tracy 1942-6-23 17259 Humboldt near Water-dog Lakes Trinity Summit, Water-dog Lakes 1828 Comment
  UC249646  Salix scouleriana Joseph P. Tracy 1923-1-7 6136 Humboldt Table Bluff Northern Coast Ranges, Table Bluff 91 Comment
  UC506513  Salix scouleriana B. S. and C. S. Ball 1932-9-12 2532 Humboldt 2 mi. n. Trinidad (home of Mr. and Mrs. Harold E. Parks) Comment
  HSC38184  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-5 3282 Humboldt Along S fork of Martins Slough just upstream from Eureka Muni Golf Course Comment
  UC481376  Salix sitchensis Harold E. Parks 1931-3-25 903 a Humboldt Van Duzen R. Orick; , Orick 6 Comment
Read comments
Jul 9 2011
  UC511992  Salix sitchensis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1240 Humboldt floodplain of Van Duzen R. at Blue Slide; Van Duzen R. 91 Comment
  RSA1255  Sambucus callicarpa B. D. Stark 1929-7-24 1388 Humboldt 2 miles north of Arcata 30 Comment
  UC168949  Sambucus mexicana Joseph P. Tracy 1911-7-9 3465 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  OBI19608  Sambucus racemosa var. racemosa Joseph P. Tracy 1947-8-24 17912 Humboldt East of Box cyn 1676 Comment
  UC1119899  Sambucus racemosa var. racemosa R. Stahelin 1933-7-19 Humboldt Korbel Eureka Quadrangle (near Riverside plant) Comment
  UC1199042  Sanguisorba annua Joseph P. Tracy 1936-6-17 14974 Humboldt at crossing road from Bridgeville to Trinity Co. Little Van Duzen River 713 Comment
  HSC104438  Sanguisorba officinalis J. Martin, Bianca Hayashi, Cheri Sanville 2012-8-28 Humboldt Northern end of Christmas Prairie Lake Comment
  HSC21615  Sanicula arctopoides R. T. Forester 1963-3-13 22 Humboldt 1/2 mi. N of Fairhaven on Samoa Rd. Comment
  UC1197110  Sanicula bipinnatifida Joseph P. Tracy 1928-6-24 8461 Humboldt Valley of South Yager Creek 762 Comment
  HSC81674  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1980-7-13 6065 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  UC1197100  Sanicula crassicaulis Joseph P. Tracy 1927-5-15 8034 Humboldt Trinity River Valley near the South Fork; Trinity River Valley 182 Comment
  UC1197092  Sanicula graveolens Joseph P. Tracy 1935-7-14 14069 Humboldt Grouse Mountain 1524 Comment
  HSC71008  Sanicula tuberosa J. M. DiTomaso 1981-5-15 2009 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  HSC71059  Sanicula tuberosa Thomas W. Nelson, Jane P. Nelson 1977-5-30 3393 Humboldt McKeown Ranch. Along road to Anderson's Ford. 854 Comment
  HSC75950  Sanicula tuberosa Overton, Butler 1979-7-24 9707 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  RSA30643  Saxifraga mertensiana Lincoln Constance, Reed C. Rollins 1942-5-11 2869 Humboldt 3 miles W of East Fork of Willow Creek. Comment
  UC161581  Saxifraga mertensiana Joseph P. Tracy 1911-6-4 3217 Humboldt 5 mi from The Coast (along Little River); Northern Coast Region, Little River 121 Comment
  UC642323  Scandix pecten-veneris Joseph P. Tracy 1935-5-25 13872 Humboldt Fort Seward 106 Comment
  HSC26675  Scandix pecten-veneris Thomas W. Nelson 1971-5-9 431 Humboldt Hwy. 36 opposite Goat Rock, 2 mi. W of Bridgeville Comment
  RSA53798  Schoenoplectus acutus var. occidentalis Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  SEINET11754828  Scirpus microcarpus J. P. Tracy 1949-1 18533 Humboldt Dusky's Spring, Trinity River Valley, Willow Creek 152 Comment
  UC668017  Scirpus pungens Joseph P. Tracy 1927-9-25 8368 Humboldt at Eureka (near bay shore) 6 Comment
  SEINET12050518  Scoliopus bigelovii F. H. Utech 1988-1 88 -024 Humboldt 1.5 mi WNW of Weott on Ave of the Giants (alt US 101), W.D. & W.H. Clark Redwood Grove 40 Comment
  HSC37964  Scrophularia californica Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  UC1011942  Scrophularia californica Francis W. Pennell 1949-7-6 26080 a Humboldt 2 mi nw Pepperwood (along Eel river, Rte 101) 30 Comment
  UC577323  Scutellaria antirrhinoides Joseph P. Tracy 1930-6-15 8763 Humboldt Dobbyn Creek 152 Comment
  HSC35621  Scutellaria antirrhinoides Thomas W. Nelson, B. Reinhardt 1975-7-30 2115 Humboldt E of Pilot Rock Comment
  CDA41033  Scutellaria siphocampyloides B. F. Kemp 1958-7-5 838 -58 Humboldt Knight Ranch, 4 miles north of Willow Creek. 0 Comment
  UC1239698  Scutellaria tuberosa Joseph P. Tracy 1939-5-6 16278 Humboldt Trinity River Valley, Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC65962  Sedum laxum subsp. flavidum Gail Newton 1980-7-15 1549 Humboldt Near Sims Mtn. 1311 Comment
  JEPS47745  Sedum laxum subsp. heckneri Wayne Roderick 1961-7-10 61 .989 Humboldt 6.6 mi n Orleans (Klamath River, 1.4 mi s of Siskiyou County line (Somesbar)); Klamath River, n of Orleans 152 Comment
  UC169908  Sedum laxum subsp. heckneri Harley P. Chandler June, 1901 1439 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  CAS-BOT-BC61460  Sedum laxum subsp. heckneri Volney Rattan 106 Humboldt Klamath Comment
  HSC44072  Sedum laxum var. heckneri Thomas W. Nelson, Jane Nelson 1977-6-19 3456 Humboldt W side of Middle Peak of Mt. Lassic group 1768 Comment
  JEPS73714  Sedum spathulifolium L. R. Heckard with T. I. Chuang 1968-7-5 1988 Humboldt along Mail Ridge Road 4 1/2 mi n of its junction with the Harris Road (e of Garberville); e of Garberville Comment
  UC1198844  Sedum spathulifolium Joseph P. Tracy 1944-8-13 17490 Humboldt along Trinity Highway Willow Creek Canyon (rock bluffs at Romanzoffia Creek); Romanzoffia Creek, Willow Creek Canyon 365 Comment
  UC211248  Selaginella oregana Joseph P. Tracy 1920-10-24 5407 Humboldt near Korbel; Northern Coast Ranges 60 Comment
  POM182453  Selaginella wallacei Joseph P. Tracy 1912-7-26 3850 Humboldt Kneeland Prairie. 762 Comment
  CDA8588  Senecio bolanderi var. bolanderi Gordon Leppig, M. Renner 2005-6-7 2246 Humboldt Pacific Lumber Company land. Redwood House Road, Hely Creek watershed. Comment
  HSC99425  Senecio integerrimus var. exaltatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-1 74 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
  HSC56353  Senecio integerrimus var. major Griswold, Butler 1979-7-10 6324 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC56367  Senecio integerrimus var. major Griswold, Butler 1979-7-10 6252 Humboldt Near Board Camp Mountain, close to the town of Willow Creek 1494 Comment
  HSC57618  Senecio integerrimus var. major G. L. Clifton, Griswold 1979-7-25 10743 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC302177  Senecio integerrimus var. major Joseph P. Tracy 1926-5-15 7480 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC100446  Senecio mendocinensis Carl C. Marshall Jul 1887 433 Humboldt Spruce Grove. Comment
  HSC58095  Senecio triangularis G. L. Clifton, Griswold 1979-8-1 12011 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC963844  Senecio vulgaris H. E. Parks and S. T. Parks June 1943 24234 Humboldt Spruce Cove North Coast Ranges, , Spruce Cove (Trinidad) 60 Comment
  HSC34610  Senecio vulgaris A. Montalvo 1975-5-24 273 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  CHSC55650  Sequoia sempervirens Dennis W. Morris 1991-4-24 20 Humboldt 2 mi e of Humboldt State Univ. in Redwood Park. Coastal mountains. 115 Comment
  UC1222980  Sericocarpus oregonensis subsp. oregonensis Joseph P. Tracy 1950-9-22 19378 Humboldt ca 3 mi sw of, along roadside Orleans Comment
  UCD92863  Setaria viridis A. H. Murphy 1948-9-1 s.n. Humboldt Cottral Ranch, Table Bluff. Comment
  JEPS30462  Sherardia arvensis Lauramay T. Dempster 1963-7-8 3847 Humboldt 2.1 mi w Bridgeville (on road to Eureka, along Van Duzen River) 160 Comment
  UC108909  Sidalcea asprella subsp. nana W. W. Price 1890-7-1 Humboldt Mad River Comment
  HSC42305  Sidalcea malachroides Tom Duebendorfer 1977-5-15 48 Humboldt 0.52 mi. after junction of Snow Creek Rd. and Maple Creek Rd. along Maple Creek Rd. 518 Comment
  RSA33405  Sidalcea malachroides Doris K. Kildale 1927-7-2 s.n. Humboldt Lord (?) Ellis Road, near Korbel Comment
  RSA47159  Sidalcea malachroides Doris K. Kildale 1926-5-16 s.n. Humboldt Horse Mountain Comment
  HSC35614  Sidalcea malviflora Thomas W. Nelson, B. Reinhardt 1975-7-30 2110 Humboldt Whiting Spring Comment
  UC668144  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1936-8-2 15062 Humboldt French Camp Ridge 1066 Comment
  HSC103268  Sidalcea malviflora subsp. patula John McRae 2014-5-8 Humboldt South of Fortuna; north side of Hwy. 36, approx. 3/4 mi. east of intersection with Hwy 101. 18 Comment
  UC176964  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3596 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  HSC104338  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 9 Humboldt McKinleyville; Dow's Prairie, near Arcata Airport 61 Comment
  HSC104426  Sidalcea malviflora subsp. patula Bianca Hayashi 2013-6-13 Humboldt South of Bald Mountain Comment
  HSC98049  Sidalcea oregana subsp. eximia Cara Witte 2007-7-19 545 Humboldt Ammon Ridge Road. Approximately 1/4 mile east of intersection with National Forest 1. 1560 Comment
  POM161047  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-8-29 5394 Humboldt Dow s Prairie, around Humboldt Bay Comment
  HSC22032  Silene Richard Spjut 1971-5-8 1875 Humboldt 1 mi. up Friday Ridge Rd., 3 mi. E of Willow Creek Comment
  UC14437  Silene antirrhina Chestnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UC162882  Silene bridgesii Harley P. Chandler June, 1901 1505 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC1198361  Silene californica Joseph P. Tracy 1948-8-8 18096 Humboldt Iaqua 609 Comment
  HSC56992  Silene campanulata Overton, Butler 1979-7-24 9559 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  BLMAR456  Silene gallica Jennifer Anthony-Wheeler 2008-5-27 456 Humboldt Samoa dunes, growing in Samoa Endangered Plant Protection Area 9 Comment
  HSC61770  Silene gallica Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  HSC102089  Silene grayi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 992 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC668082  Silene grayi Joseph P. Tracy 1932-7-12 10477 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  UC1541453  Silene hookeri H. E. Parks and J. P. Tracy 1930-5-25 791 Humboldt Laribee Valley 792 Comment
  BLMAR349  Silene hookeri Jennifer Anthony-Wheeler 2003-5-5 349 Humboldt Eden valley 807 Comment
  HSC100709  Silene hookeri Carl C. Marshall Jun 1886 10 Humboldt S Fork Mtn. near summit. Comment
  POM172672  Silene hookeri subsp. bolanderi Joseph P. Tracy 1913-6-20 4234 Humboldt Lower foothills of Buck Mountain, on its NW slope. 762 Comment
  CAS-BOT-BC389064  Silene laciniata subsp. californica Henry M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek - near Orleans Comment
  HSC43853  Silene laciniata subsp. californica Maralyn O'Meara 1974-7-17 551 Humboldt Kneeland Comment
  CAS-BOT-BC389050  Silene laciniata subsp. californica J. H. Thomas 1949-6-14 924 Humboldt Salmon River Valley near its junct. with Klamath River Comment
  CAS-BOT-BC389051  Silene laciniata subsp. californica J. Clausen 1932-9-17 676 Humboldt On a roadbank between Willow Creek and Redwood Creek 304 Comment
  CAS-BOT-BC389055  Silene laciniata subsp. californica Carl B. Wolf 1927-8-27 1161 Humboldt On the Klamath River 11 miles above Weitchpec Comment
  HSC4167  Silene laciniata subsp. californica J. Wendell Howe 1931-6-7 Humboldt Wildcat Rd. W of Ferndale Comment
  HSC4174  Silene laciniata subsp. californica R. Spellenberg 1964-6-16 434 Humboldt 0.25 mi. W of Hwy. 299 bridge over S Fork of Trinity River Comment
  SEINET201026 Image available 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
  UC492253  Sisymbrium altissimum Joseph P. Tracy 1932-5-17 10090 Humboldt Trinity River near Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  CAS-BOT-BC75285  Sisymbrium officinale Joseph P. Tracy 1933-8-22 12976 Humboldt Eureka. 60 Comment
  HSC23120  Sisyrinchium bellum Norman Dennis 1965-6-8 112 Humboldt 0.25 mi. S and 1 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county road, along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  RSA311326  Sisyrinchium californicum Robert F. Thorne 1957-9-3 19018 Humboldt Patricks Point State Park. Comment
  UC1197798  Smilacina racemosa Joseph P. Tracy 1914-5-17 4474 Humboldt Cumens claim Northern Coast Region, region about Humboldt Bay (on ridge between Ryans Slough and Freshwater Creek) 304 Comment
  SEINET3888098  Smilacina stellata var. sessilifolia Thomas Nelson, James Nelson 1975-5-24 1844 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  UC750870  Solanum furcatum E. F. Paddock 1947-7-13 163 Humboldt Trinidad, near boat landing Trinidad Comment
  CDA41195  Solanum parishii J. Breton & A. Livingtston 2005-6-15 12 Humboldt Northeast of Grouse Mountain. Comment
  RSA47108  Solanum umbelliferum Doris K. Kildale 1925-5-10 625 Humboldt Strongs Station Comment
  UC1196147  Solanum umbelliferum Joseph P. Tracy 1948-8-22 18105 Humboldt 5 mi e (of town) Carlotta (by old Strong's District School House) 60 Comment
  UC205162  Solidago elongata Joseph P. Tracy 1919-9-22 5260 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1889 Comment
  UC494190  Solidago elongata H. E. and S. T. Parks 1930-9-14 785 Humboldt n shore Big Lagoon Comment
  CDA8800  Solidago spathulata T. C. Fuller 1961-9-28 7051 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  CHSC109579  Solidago spathulata B. Castro; L. P. Janeway 2004-9-10 1474 Humboldt North Coast. South Spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site: on other side of South Spit Road from the Humboldt Bay mudflats. 2 Comment
  CHSC423  Solidago spathulata M. Anthony 1960-5-1 Humboldt Coastal. Comment
  HSC6200  Solidago spathulata D. K. Smith 1968-11-9 61 Humboldt Mad River Rd. Comment
  UC88159  Solidago spathulata Harley P. Chandler May 1901 1203 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  UC1199286  Soliva sessilis Joseph P. Tracy 1921-4-24 5447 Humboldt South Fork Eel River Northern Coast Ranges, , Phillipsville F (Phillipsville Flat) 91 Comment
  HSC35009  Soliva sessilis J. O. Sawyer 1975-5-20 2695 Humboldt 1445 Chester Ave., Sunnybrae Comment
  CHSC10128  Sonchus asper J. W. Johnson 1961-6-12 1410 Humboldt Samoa Peninsula. On a dune tongue between the foredunes, at Foredune 39. Comment
  UC164789  Sonchus oleraceus J. P. Tracy 1903-8-2 1926 Humboldt immediate vicinity Eureka 0 Comment
  HSC67888  Sonchus oleraceus J. P. Smith 1973-5-26 6862 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC89465  Sonchus oleraceus P. A. Daly 1986-3-12 69 Humboldt Trinidad Head, along trail 61 Comment
  UC1198766  Sorbus californica Doris K. Kildale 1926-9-5 2635 Humboldt on trail between Red Peak and Signal Peak; Lasseck's Peaks 1676 Comment
  HSC21343  Sparganium angustifolium D. E. Anderson 1963-9-29 2854 Humboldt Fish Lake. Comment
  HSC37993  Spergularia rubra Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay 1 Comment
  HSC56168  Spergularia rubra G. L. Clifton, Griswold 1979-8-1 12059 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  CAS-BOT-BC149620  Spiraea douglasii Harley P. Chandler 1901-5-1 1197 Humboldt Humboldt Bay 30 Comment
  CAS-BOT-BC149621  Spiraea douglasii Doris K. Kildale 1927-6-26 3601 Humboldt Big Lagoon Comment
  UC1196406  Spiranthes romanzoffiana Joseph P. Tracy 1944-7-3 17487 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC666995  Spiranthes romanzoffiana Joseph P. Tracy 1937-8-12 15640 Humboldt Snow Camp 1402 Comment
  HSC90473  Spiranthes romanzoffiana Jean Hanson 1980-8-28 124 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  UC1196398  Spiranthes romanzoffiana Mrs. Alma Bonstell 1912-8-5 Humboldt Christmas Prairie Northern Coast Ranges 914 Comment
  SFV18496  Stachys ajugoides var. rigida J. A. Riddell 2002-4-19 58 Humboldt Arcata. On the banks of Campbell Creek 10 Comment
  UC1239728  Stachys ajugoides var. rigida Joseph P. Tracy 1913-6-20 4217 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCLA71395  Stachys ajugoides var. rigida M. S. Jussel 1931-5-2 Humboldt Sylvandale Comment
  HSC14406  Stachys arvensis William J. Ferlatte 1963-5-5 33 Humboldt Near 11th and B St. Arcata Comment
  SEINET12273954  Stachys rigida L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  UCD126043  Stachys rigida var. rigida Joseph P. Tracy 16-19 Jul 1930 9012 Humboldt South Fork Mountain; opening in fir forest nera McKay Camp. 1676 Comment
  CAS-BOT-BC175344  Stellaria borealis subsp. sitchana Doris K. Kildale 1926-3-24 1684 Humboldt Ryan Slough near the Occidental Ranch Comment
  UCD99372  Stellaria media Linda M. Barker 1976-4-30 1396 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  BLMAR188  Stellaria nitens Donald Hazlett 1994-6-7 188 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1173636  Stenanthium occidentale Joseph P. Tracy 1937-7-25 15558 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC6231  Stephanomeria virgata Paul Shields 1955-9-25 Humboldt 17 mi. of Willow Creek Comment
  HSC32338  Stipa lemmonii D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5643 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  HSC58409  Stipa lemmonii Terry Griswold, Marvin Butler 1979-7-10 7124 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  OBI22262  Stipa lemmonii Joseph P. Tracy 1938-6-17 15968 Humboldt Panther garp, on the road from Bull Crk to Upper Mattole 823 Comment
  HSC102188  Stipa nelsonii var. dorei M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1102 Humboldt Andy's Camp 1564 Comment
  HSC70374  Stipa occidentalis var. californica M. A. Baker 1980-6-7 1781 Humboldt Near Brush Mtn. 1128 Comment
  HSC58570  Stipa occidentalis var. occidentalis G. L. Clifton, Griswold 1979-7-26 10297 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  CAS-BOT-BC87609  Streptanthus tortuosus Doris Kildale Gillespie 1931-6-7 10597 Humboldt South Fork Mountain. Blake Lookout. 1726 Comment
  JEPS54017  Streptanthus tortuosus var. suffrutescens Chesnut and Drew 1888-1 Humboldt Comment
  JEPS62166  Streptopus amplexifolius var. americanus W. L. Jepson 1902-7-17 2058 A Humboldt trail to Devil's Backbone; Trinity Summit 2133 Comment
  UC303040  Streptopus amplexifolius var. americanus Joseph P. Tracy 1926-5-22 7508 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  HSC102070  Suksdorfia ranunculifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 972 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC58186  Swertia radiata G. L. Clifton, Griswold 1979-8-2 12275 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC602523  Symphoricarpos mollis Joseph P. Tracy 1936-8-8 15120 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1463 Comment
  HSC36040  Symphyotrichum chilense Thomas W. Nelson 1975-9-24 2199 Humboldt Beside Indianola Rd., ca. 1/2 mi. E of its junction with Hwy. 101 Comment
  SEINET11115992  Symphytum asperum Unknown 1949-1 18358 Humboldt CALIFORNIA PLANTS HUMBOLDT COUNTY Salmon Creek Valley, south end of Humboldt Bay; naturalized native of Asia. Comment
  JEPS26262  Synthyris reniformis Joseph P. Tracy 1939-3-19 16205 Humboldt by old Strong's District School House, 5 mi e of town Carlotta 45 Comment
  UC1198059  Synthyris reniformis Joseph P. Tracy 1909-5-16 2969 Humboldt Coast bluffs 3 mi n Trinidad; Northern Coast Ranges 30 Comment
  UC249515  Synthyris reniformis Joseph P. Tracy 1922-4-30 6039 Humboldt along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges, Brannan Mountain 914 Comment
  CHSC55891  Tanacetum camphoratum L. P. Janeway 1987-7-31 2543 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  UC1199290  Tanacetum camphoratum J. P. Tracy 1901-8-7 1269 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  RSA18773  Tanacetum camphoratum P. A. Munz 1954-7-25 19869 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. 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-BC85215  Taxus brevifolia Doris K. Kildale 1927-7-17 3758 Humboldt Bug Creek 792 Comment
  HSC31760  Taxus brevifolia Timothy B. Devine 1974-5-4 317 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC92008  Taxus brevifolia M. C. Hartman 1963-3-30 8 Humboldt Hwy. 299 1.0 mi. E of Berry Summit Comment
  RSA46723  Taxus brevifolia Doris K. Kildale 1937-10-28 15080 Humboldt Willits Comment
Read comments
Jan 24 2013
  SBBG319  Taxus brevifolia H. and M. Dearing 1939-6-23 3691 Humboldt E fork of Willow Crk 609 Comment
  HSC56197  Tellima grandiflora Gilbert Muth 1979-8-1 12161 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CAS-BOT-BC447401  Tellima grandiflora H. D. Ripley; R. C. Barneby 1945-6-16 6824 Humboldt North of Harris Comment
  CAS-BOT-BC447405  Tellima grandiflora Alice Eastwood 1907-4-22 22 Humboldt Trinidad, Light-house Point Comment
  HSC20428  Tellima grandiflora D. E. Anderson 1963-3-16 2382 Humboldt Scotia Bluffs Comment
  RSA167304  Tellima grandiflora Joseph P. Tracy 1950-6-8 18722 Humboldt Near Mountain Glen Ranch, summit of ridge, 7 miles south of Ferndale. Bear River Ridge. 610 Comment
  UCD108599  Thermopsis robusta G. F. Hrusa 1992-5-3 10423 Humboldt 9.5 road m. N of Klamath River on Cedar Camp Rd. 1219 Comment
  UC1198810  Thlaspi montanum var. montanum Joseph P. Tracy 1934-7-18 13431 1/2 Humboldt Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC1565796  Thlaspi montanum var. montanum R. Spellenberg 1990-7-10 10234 Humboldt on USFS Rd 6N08, 7.5 air mi sw Salyer (on Friday Ridge 0.4 mi ne of junction with USFS Rd. 1, extreme e edge county); on Friday Ridge 1371 Comment
  POM160766  Thuja plicata Joseph P. Tracy 1920-9-19 5401 Humboldt North fork of Mad River. 305 Comment
Read comments
Jul 25 2018
  UC1174840  Thuja plicata P. C. Everett and E. K. Balls 1959-10-25 23970 Humboldt 6.9 mi sw from Ferndale (on Old Coast Road to Capetown, on heavily wooded slopes, n coastal conifer forest) 563 Comment
  UC275476  Thuja plicata Joseph P. Tracy 1925-3-7 6931 Humboldt North Fork Eel River North Coast Region, North Fork Eel River (around Humboldt Bay) 60 Comment
Read comments
Jul 4 2018
  JEPS54121  Thysanocarpus curvipes W. L. Jepson 1934-5-7 16702 Humboldt Bull Creek; Buckeye Prairie, Bull Creek Comment
  UC1541459  Thysanocarpus curvipes H. E. Parks 1930-5-25 870 Humboldt Laribee Valley 762 Comment
  HSC20437  Tiarella trifoliata var. unifoliata D. E. Anderson 1961-9-30 1849 Humboldt Blue Lake Comment
  OBI33243  Tiarella trifoliata var. unifoliata David J. Keil 1983-7-1 17257 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  UC1198900  Tiarella trifoliata var. unifoliata J. P. Tracy 1901-6-30 1209 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC436909  Tiarella trifoliata var. unifoliata L. B. Kildale 1930-9-9 10410 Humboldt Redwood Creek at Berry's 289 Comment
  JEPS43495  Tiarella trifoliata var. unifoliata Lincoln Constance 1934-5-26 653 Humboldt North Dyerville Flat Grove Bull Creek Region (near Founders' Tree, Bull Creek Region, South Fork Eel River); South Fork Eel River, Bull Creek Region 48 Comment
  UC303041  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1926-6-27 7664 Humboldt Horse Mountain 1463 Comment
  HSC59080  Tolmiea diplomenziesii Thomas Wood 1979-5-15 194 Humboldt E of Arcata at Essex Park, .5 mi. E of W End Rd. 21 Comment
  BLMAR634  Tonella tenella Jennifer Wheeler 2011-6-15 634 Humboldt Lacks Creek, Pine Ridge Road 914 Comment
  UC147887  Tonella tenella Joseph P. Tracy 1906-5-6 2442 Humboldt near Hydesville; Northern Coast Region 60 Comment
  JEPS14254  Torilis arvensis subsp. arvensis Mrs. Archie Cathey 1938-7-30 Humboldt Miranda at Cathey Ranch 152 Comment
  UC1222896  Tracyina rostrata Joseph P. Tracy 1950-6-23 18859 Humboldt 3 mi ne Alderpoint; Dobbyn Creek 213 Comment
  BLMAR387  Triantha occidentalis Jennifer Anthony-Wheeler 2004-7-1 387 Humboldt Horse Mtn, mixed conifer in serp.seep Comment
  CAS-BOT-BC517423  Triantha occidentalis subsp. occidentalis Doris K. Kildale 1925-8-16 1185 Humboldt Trinity Summit 1917 Comment
  SEINET8999606 Image available Trichostema lanceolatum Unknown 1934-8-19 13595 Humboldt TRINITY RIVER VALLEY, at Willow Creek 152 Comment
  UC484155  Trichostema laxum E. R. Johnson Aug 1929 Humboldt along the Eel River Comment
  HSC17943  Trientalis latifolia Yarick 1960-8-3 Humboldt K&K. Kruger Cr. Comment
  HSC31556  Trientalis latifolia Glenn McGourty 1974-5-11 46 Humboldt Along Maple Creek Rd. Comment
  HSC54597  Trientalis latifolia Overton, Butler 1979-7-24 9676 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC95824  Trientalis latifolia Kevin Thomas 2004-4-26 16 Humboldt Jacoby Creek Rd. Comment
  HSC45615  Trientalis latifolia Diane L. Reed 1978-5-7 49 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  RSA69006  Trientalis latifolia F. W. Peirson 1923-7-9 s.n. Humboldt first summit on road between coast and Eel River Comment
  UC177169  Trientalis latifolia Joseph P. Tracy 1913-6-25 4341 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UC495669  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-1 9894 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  UC1197240  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1915-6-27 4659 Humboldt near Carlotta (Yager Creek); Northern Coast Ranges 60 Comment
  UC1103434  Trifolium barbigerum Joseph P. Tracy 1912-5-12 3635 Humboldt Eureka Northern Coast Ranges Comment
  UC162800  Trifolium barbigerum J. P. Tracy 1906-6-17 2491 Humboldt immediate vicinity Eureka 0 Comment
  HSC49248  Trifolium bifidum R. Sutherland 1978-5-19 4 .19578 Humboldt Mckee Flat 296 Comment
  HSC104457  Trifolium campestre Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 18 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC1197204  Trifolium ciliolatum Joseph P. Tracy 1911-7-11 3510 Humboldt Hoopa Valley Northern Coast Ranges 152 Comment
  UC165571  Trifolium depauperatum var. depauperatum Mrs. M. H. Manning 1902-4-27 Humboldt near Hupa Comment
  UC1103441  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1902-6-3 1645 Humboldt near Harris (Spruce Grove); Northern Coast Ranges, Eureka 914 Comment
  CDA4294  Trifolium dubium G. D. Barbe, T. C. Fuller 1974-6-17 1837 Humboldt Sail Court, Shelter Cove. 0 Comment
  UCD108860  Trifolium dubium P. B. Kennedy 1929-6-14 10323 Humboldt Eureka. Comment
  HSC44835  Trifolium eriocephalum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3603 Humboldt Along old trail N of Alder Spring 1555 Comment
  UCD108946  Trifolium fragiferum P. B. Kennedy 1929-6-14 10326 Humboldt Eureka. Niles Ranch. Comment
  UC16800  Trifolium fucatum J. Burtt Davy 1899-6-8 5356 Humboldt near Harris; North Coast Ranges Comment
  HSC45123  Trifolium fucatum R. Sutherland 5 .19578 Humboldt 128 Comment
  UC495732  Trifolium fucatum Joseph P. Tracy 1927-6-5 8100 Humboldt s Yager Creek (valley); Northern Coast Ranges 762 Comment
  UC16566  Trifolium hybridum Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5601 Humboldt Arcata Comment
  UCD23426  Trifolium incarnatum Eileen Burger 1977-5-8 30 Humboldt Crimson clover, flowers in heads. North oak woodland. West side of Hwy 101, 1/4 mile north of Garberville on frontage road. Comment
  HSC18849  Trifolium incarnatum C. E. Fellows 1970-5-10 263 Humboldt Rio Dell Comment
  HSC102636  Trifolium longipes subsp. elmeri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1620 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC495656  Trifolium longipes subsp. hansenii Joseph P. Tracy 1930-6-8 8726 Humboldt Northern Coast Ranges. Kneeland Prairie. 762 Comment
  UC175675  Trifolium longipes subsp. hansenii Joseph P. Tracy 1913-6-17 4157 Humboldt Northern Coast Ranges. Buck Mountain, near summit. Comment
  HSC97235  Trifolium longipes subsp. oreganum Bryan Atkinson, Jenny Lynn Hutchinson 2007-6-4 1 Humboldt About 7.4 mi. S of Hwy. 299 on FS Rd. NF1, near Cold Springs Camp 1220 Comment
  UC199105  Trifolium longipes var. elmeri Chesnut and Drew July 1888 Humboldt S. Fork of Trinity Comment
  HSC39714  Trifolium microcephalum D. E. Anderson, J. P. Smith 1971-6-28 - 1264 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  RSA183525  Trifolium microcephalum D. E. Anderson 1965-5-8 3645 Humboldt About 2 miles north of Willow Creek along road running along east side of Trinity River. Comment
  HSC45134  Trifolium oliganthum R. Sutherland 1978-5-21 2 .21578 Humboldt 433 Comment
  HSC71616  Trifolium repens J. P. Smith 1973-5-26 6822 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC95537  Trifolium repens Andrea Pickart 2002-5-24 108 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  HSC84044  Trifolium subterraneum L. P. Janeway 1983-4-30 240 Humboldt 21 Comment
  UC160989  Trifolium variegatum var. variegatum Joseph P. Tracy 1911-7-7 3368 Humboldt 3 mi nw Junction os Wilow Creek with Trinity river (near Beebe's Ranch); Northern Coast Ranges Comment
  HSC32919  Trifolium willdenovii Thomas W. Nelson, James Nelson 1973-5-28 966 Humboldt McKeown Ranch N of Dinsmore Comment
  SEINET6935462  Trifolium willdenovii Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  HSC15195  Trifolium wormskioldii J. W. Johnson 1961-8-17 1009 Humboldt Arcata, Hollow 10, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC12220  Triglochin maritima Gary J. Stebbins 1970-5-10 78 Humboldt Along Hwy. to Samoa just off the Mad River Slough bridge 2 Comment
  RSA32656  Triglochin maritima Doris K. Kildale 1927-7-10 3740 Humboldt Big Lagoon Comment
  UC175295  Trillium albidum Joseph P. Tracy 1913-6-17 4181 Humboldt near summit Buck Mt.; Northern Coast Ranges 1676 Comment
  UC1222530  Trillium albidum Joseph P. Tracy 1950-5-7 18646 Humboldt head of S. Yager Comment
  CAS-BOT-BC133396  Trillium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  CHSC2321  Trillium ovatum V. Holt 1933-4-11 Humboldt Comment
  UCR275118  Trillium ovatum Charity A. Hartshorn 2016-5-14 28 Humboldt Arcata Community Forest 244 Comment
  UCR3521  Trillium ovatum David Whistler, H. M. Whistler 1964-7-31 640731- 9 Humboldt North Coast, at Del Norte county line on US Hwy 101 [between Orick and Klamath] 137 Comment
  HSC22042  Trillium ovatum H. S. Logsdon 1964-4-11 15 Humboldt 4 mi. NE of Orick at Boye's Prairie Comment
  HSC59702  Trillium ovatum Maralyn O'Meara 1973-6-12 204 Humboldt Above Clear Lake Comment
  SEINET12051379  Trillium ovatum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -289 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UCD139911  Trillium ovatum Anstruther Davidson 1930-1 s.n. Humboldt Kelseyville. Comment
  CAS-BOT-BC521251  Trillium rivale J. H. Thomas 1949-6-12 897 Humboldt 2 miles west of Matins Ferry on road to Orick. Comment
  UC213508  Triodanis biflora J. P. Tracy 1919-4-27 5131 Humboldt sand hills of Ocean Beach at Samoa (opp. Eureka); Ocean Beach Comment
  UC34823  Triodanis perfoliata Harley P. Chandler June, 1901 1514 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  BLMAR608  Triphysaria eriantha Jennifer Wheeler 2011-4-1 608 Humboldt King range, located before McNutt Gulch on Mattole Rd Comment
  CHSC118618  Triphysaria eriantha subsp. eriantha Richard R. Halse 2016-3-24 9683 Humboldt Along U.S. Hwy. 101 ca. 9.5 miles south of Garberville, just north fo the Mendocino County Line. 168 Comment
  HSC95575  Triphysaria eriantha subsp. eriantha Andrea Pickart 2002-3-29 17 Humboldt Samoa Dunes 0 Comment
  UC176946  Triphysaria pusilla Joseph P. Tracy 1913-6-18 4196 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC78970  Triphysaria pusilla L. P. Janeway 1984-5-16 787 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd., 0.25 mi. N of the boat ramp 3 Comment
  SEINET4097498  Triphysaria versicolor O. M. Clark 1932-1 5332 Humboldt North Eureka. Comment
  RSA10052  Trisetum canescens Joseph P. Tracy 1926-5-22 7502 Humboldt Northern Coast Ranges, Prairie Creek. 152 Comment
  UC1056012  Trisetum canescens W. L. Colwell 1954-10-12 10 Humboldt 4 mi ne Blocksburg 1127 Comment
  CAS-BOT-BC193514  Trisetum cernuum Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  HSC13419  Trisetum cernuum R. D. Modafferi 1965-5-13 99 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  UC526697  Trisetum cernuum Joseph P. Tracy 1926-5-22 7502 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  UC922032  Trisetum cernuum Joseph P. Tracy 1950-7-2 18962 Humboldt 6 mi ne Hawkins Bar (in woods at Fern Spring); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UCD93903  Trisetum cernuum P. B. Kennedy 1923-8-3 s.n. Humboldt South of Scotia. By road through red woods off highway. Comment
  RSA378030  Triteleia hyacinthina Hutchinson 1927-05 s.n. Humboldt [No locality information provided] Comment
  UC1197716  Triteleia laxa Joseph P. Tracy 1942-6-15 17168 Humboldt 5 mi n Garberville 152 Comment
  UC666896  Triteleia laxa Joseph P. Tracy 1938-7-5 16001 Humboldt in woods by old Strong's District School House (5 mi e of Carlotta) 45 Comment
  POM169620  Triteleia peduncularis Joseph P. Tracy 1903-6-12 1920 Humboldt Immediate vicinity of Eureka. 0 Comment
  CAS-BOT-BC85899  Tsuga heterophylla Doris K. Kildale 1927-5-13 3127 Humboldt Green Point, Redwood Creek Road Comment
  HSC28304  Tsuga heterophylla Gary S. Lester 1973-12-8 61 Humboldt E of HSC Campus Comment
  NY64312  Tsuga heterophylla J. P. Tracy 1940-8-25 16704 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
  CAS-BOT-BC73930  Turritis glabra Alice Eastwood; John Thomas Howell 1937-6-23 4804 Humboldt Little Van Duzen River. Comment
  SEINET12102554  Umbellularia californica E. H. Graham 1931-1 6960 Humboldt Along highway near Garberville Comment
  UC1198132  Urtica urens Joseph P. Tracy 1941-6-17 16917 Humboldt Eureka 30 Comment
  UC32648  Vaccinium Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5651 Humboldt Hoopa Mt. Comment
  CAS-BOT-BC193958  Vaccinium cespitosum L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp 1219 Comment
  HSC96264  Vaccinium cespitosum Eric Schori, Kazuyuki Ishimaru 2005-6-24 16 Humboldt Branch rd. off Titlow Hill Rd., Buck Flat 1570 Comment
  UC562345  Vaccinium cespitosum Joseph P. Tracy 1935-7-26 14270 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  UCD118069  Vaccinium membranaceum Joseph P. Tracy 1942-6-23 17243 Humboldt Trinity Summit, near Box Camp. 1524 Comment
  CAS-BOT-BC199308  Vaccinium ovatum Doris K. Kildale 1928-5-19 5203 Humboldt Chalk Mountain Comment
  CAS-BOT-BC199310  Vaccinium ovatum Carl B. Wolf 1927-8-27 1159 Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  CAS-BOT-BC199311  Vaccinium ovatum Hubert O. Jenkins 1943-8-1 s.n. Humboldt In dry rocky bed of Eel River, Richardson Grove Comment
  CAS-BOT-BC199315  Vaccinium ovatum A. A. Heller 1937-6-12 15917 Humboldt Bishop Pine Lodge, 3 miles north of Trinidad Comment
  JEPS25685  Vaccinium ovatum P. C. Hutchison 1961-5-22 2006 Humboldt 14.3 mi e Arcata junction with U.S. Highway 101 (on U.S. Highway 299) Comment
  JEPS58743  Vaccinium ovatum J. P. Tracy 1904-4-17 2017 Humboldt immediate vicinity Eureka 0 Comment
  POM285980  Vaccinium ovatum Lyman Benson 1929-7-16 1938 Humboldt Weott Ranger Station. Comment
  RSA46873  Vaccinium ovatum Doris K. Kildale 1927-3-25 s.n. Humboldt Humboldt Hill Comment
  UC154183  Vaccinium ovatum Mrs. M. H. Manning May 1902 Humboldt near Hupa Comment
  UC902048  Vaccinium ovatum Joseph P. Tracy 1948-10-24 18257 Humboldt near Fruitland 304 Comment
  UCD166885  Vaccinium ovatum Colleen Rossier 2016-9-16 3 Humboldt In vicinity of Red Cap Road, plot Red Cap #2. 264 Comment
  UCD166887  Vaccinium ovatum Colleen Rossier 2016-9-16 5 Humboldt In vicinity of Rosaleno Creek, plot Rosaleno #1. 601 Comment
  HSC31220  Vaccinium parvifolium D. E. Anderson 1972-6-20 5729 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC1197764  Vaccinium parvifolium Joseph P. Tracy 1933-7-11 12672 Humboldt Horse Mountain 1432 Comment
  UCSC000556  Vaccinium parvifolium C. R. Clar 1930-7-14 99 Humboldt Hoopa, Supply Creek, Hoopa Indian Reservation 762 Comment
  HSC82400  Vaccinium uliginosum Thomas W. Nelson 1979-7-11 5014 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC213146  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1919-9-18 5246 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1524 Comment
  UC562350  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1932-7-14 10564 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC562351  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1935-7-26 14262 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  UC602496  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1932-7-13 10505 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC502924  Vancouveria hexandra Joseph P. Tracy 1932-7-15 10620 Humboldt near Corral Prairie (Trinity Summit); Klamath Mountains, , near Corral Prairie 1524 Comment
  UC854707  Vancouveria hexandra Elizabeth Parsons Hawver June 1915 Humboldt Carlotta Comment
  CAS-BOT-BC76095  Vancouveria planipetala Alice Eastwood; John Thomas Howell 1937-6-22 4720 Humboldt Near Harris. Comment
  HSC75554  Vancouveria planipetala J. O. Sawyer, R. J. Cole 1977-7-3 3003 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC1126306  Vancouveria planipetala A. E. Wieslander 1931-5-19 207 Humboldt near Orleans; Klamath Forest, Hoopa Quadrangle Comment
  RSA161170  Vancouveria planipetala P. H. Raven, R. Snow 1958-7-20 13631 Humboldt Friday Ridge Road to Grouse Mountain, 10.8 miles southwest of junction with United States Highway 299. Comment
  CAS-BOT-BC135775  Veratrum insolitum Carl B. Wolf 1934-7-3 5920 Humboldt 19 1/2 mi. from Martin's Ferry on Orick Rd. 304 Comment
  UC1173645  Veratrum insolitum Joseph P. Tracy 1929-7-4 8636 Humboldt French Camp Ridge 1066 Comment
  UC1173647  Veratrum insolitum Joseph P. Tracy 1936-8-8 15127 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  CAS-BOT-BC527058  Veratrum viride var. eschscholzianum L. B. Kildale 1930-8-10 10206 a Humboldt Snow Camp, head of Redwood Creek Comment
  UC35085  Verbena lasiostachys var. lasiostachys Hy-Ann Pum 1888-7-21 Humboldt Comment
  UC582550  Veronica americana Joseph P. Tracy 1937-7-2 15389 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  SEINET10547645  Veronica americana Charlene A. Bennett 1976-8-6 Bennett 482 Humboldt Collected by hwy 101, n side of orick. Rocky area, densely forested by river. 30 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
  HSC102551  Vicia americana var. americana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1539 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC15258  Vicia americana var. americana J. P. Tracy 1935-5-26 13908 Humboldt Iaqua 610 Comment
  UC1197462  Vicia americana var. americana Joseph P. Tracy 1933-6-24 12613 Humboldt Big Lagoon 91 Comment
  JEPS66131  Vicia americana var. americana Lincoln Constance 1934-6-12 873 Humboldt Dyerville South Fork Eel River, Bull Creek Region (Bull Creek road and n bank of South Fork Eel River) 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
  HSC104455  Vicia hirsuta Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 29 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  RSA170257  Vicia hirsuta Joseph P. Tracy 1916-5-31 4689 Humboldt Stitz Creek. Along Eel River South Fork to Scotia. 61 Comment
  JEPS76829  Vicia sativa subsp. nigra L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4807 Humboldt about 1.2 mi n Eureka bridge (Samoa peninsula) Comment
  HSC59115  Vicia sativa subsp. sativa Terry Roth 1979-5-29 93 Humboldt Arcata, corner of Alliance Rd. and Westwood Ct. Comment
  UCR71484  Vicia tetrasperma Barbara Ertter, Thomas J. Delendick 1987-5-16 6912 Humboldt North Coast Range, Hwy 299 roadside c. 8 mi. east of Arcata, 9.5 mi. west of Lord Ellis summit Comment
  UC1761536  Viola adunca Mrs. Wilder 1926-4 5432 Humboldt Carlotta, Mrs. Wilder's yard Comment
  CHSC57460  Viola cuneata L. P. Janeway 1984-6-17 844 Humboldt On ridge east of Horse Mountain. 1432 Comment
  HSC44352  Viola glabella Brad Klipfel 1974-5-8 321 Humboldt Horse Mtn. Comment
  UC164832  Viola glabella Joseph P. Tracy 1910-4-17 3118 Humboldt near forks of Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay 0 Comment
  CAS-BOT-BC536491  Viola glabella Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC536495  Viola glabella Doris K. Kildale 1926-3-21 1593 Humboldt Lawrence Creek 609 Comment
  RSA46691  Viola hallii Doris K. Kildale 1938-6-5 15398 Humboldt Horse Mountain Comment
  UC183742  Viola hallii Joseph P. Tracy 1913-6-17 4166 Humboldt near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  UCR139069  Viola hallii E. Brower, S. Marubayashi, E. Perry 1997-5-10 054 Humboldt USFS Road 1, at mile marker 8 945 Comment
  SEINET201005 Image available Viola palustris J. P. Tracy 1904-7-31 2126 Humboldt Eureka 61 Comment
  UC249588  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek; Northern Coast Ranges, South Yager Creek Comment
  HSC51328  Viola purpurea subsp. purpurea G. L. Clifton, Overton 1979-6-3 3762 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  HSC39683  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1976-6-16 2738 Humboldt Along old trail from lookout to Blocksburg 1524 Comment
  HSC34643  Viola sempervirens Thomas Anthony 1975-4-8 4 Humboldt E of HSU tennis courts on ridge facing Fern Lake from W Comment
  RSA412776  Viola sempervirens Dwain L. Goforth 1977-4-23 3 Humboldt 2.5 miles S of Shelter Cove Road. South Fork of Bear Creek at Wailaki Campground. 561 Comment
  SEINET200802  Viola sempervirens J. P. Tracy 1904-4-3 2006 Humboldt Eureka 0 Comment
  UC1761977  Viola sempervirens J. P. Tracy Apr 1941 Humboldt somewhere near Willow Creek Comment
  CAS-BOT-BC385063  Vitis girdiana Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  CAS-BOT-BC199802  Vulpia Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UC1145197  Vulpia microstachys var. ciliata Joseph P. Tracy 1936-7-5 15038 Humboldt Grouse Mountain 1524 Comment
  SEINET200356 Image available Vulpia microstachys var. pauciflora Joseph P. Tracy 1925-7-5 7170 Humboldt Bald Mountain; near High Prairie. 1067 Comment
  UCD94901  Vulpia myuros A. H. Murphy 1951-6-1 50 Humboldt Erikson Glade, south slope of South Fork Mtn., about 3 miles east of Low Gap. Comment
  SEINET200325 Image available Vulpia myuros var. myuros J. P. Tracy 1900-1 858 Humboldt Eureka. Comment
  HSC41845  Whipplea modesta N. G. Sugihara 1977-4-23 14 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC62987  Whipplea modesta David Wheeler 1979-4-21 77 Humboldt 4 mi. past Maple Creek bridge over Mad River on the way to Eureka, hills above Butler Valley Comment
  HSC28932  Woodwardia fimbriata Diane Johnson 1972-12-4 Humboldt Butler Valley near Big Bend Rd. Comment
  HSC79482  Woodwardia fimbriata Kenneth Clark 1980-6-14 678 Humboldt N fork of Dead Man's Gulch 84 Comment
  HSC6316  Wyethia angustifolia Frances Oldridge 1945-1 Humboldt Arcata Comment
  CAS-BOT-BC382927  Wyethia angustifolia D. E. Breedlove 1961-7-4 654 Humboldt On U.S. Highway 299, 13.7 miles west of Willow Creek 731 Comment
  UC1199272  Wyethia longicaulis Joseph P. Tracy 1934-6-14 13218 Humboldt Horse Mountain 1371 Comment
  UCD137004  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. At Ammon Ridge Rd. 1524 Comment
  HSC25958  Xanthium strumarium Thomas W. Nelson 1970-10-31 286 Humboldt Eel River near N end of the Scotia Bluff. Comment
  HSC53967  Xerophyllum tenax Griswold, Butler 1979-7-11 7023 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  SEINET3888981  Xerophyllum tenax D. E. Anderson 1972-6-20 s.n. Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit.; 0 Comment
  HSC62873  Zeltnera davyi J. M. DiTomaso 1979-5-20 1045 Humboldt McKinleyville, middle divider on Hwy. 101 at Murray Rd. Comment
  HSC15743  Zigadenus fremontii Elrid H. Spinas 1948-6-16 57 Humboldt Horse Mtn. Comment
  HSC99034  Zigadenus micranthus Cara Witte 2008-7-1 775 Humboldt Horse Mountain Botanical Area. Along 6N36. Approximately .6 miles southeast from Radio Towers. 1476 Comment
  UC1198216  Zigadenus micranthus var. micranthus Joseph P. Tracy 1947-6-8 17710 Humboldt open flat by old Strong's District School House (5 mi e of town, Carlotta); Carlotta 60 Comment
  UC15056  Zigadenus micranthus var. micranthus Joseph Burtt Davy 1899-6-11 5411 Humboldt near Hubbard's Station Comment



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