Search Results — 2000 specimen records retrieved (1380 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/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC72810  Abies concolor M. A. Baker 1980-6-28 2495 Humboldt Near Mad River Buttes 1445 Comment
  CAS-BOT-BC78025  Abies grandis Doris K. Kildale 1928-6-2 5303 Humboldt Bucksport - near Eureka Comment
  HSC55022  Abies procera Overton, Butler 1979-7-31 11431 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC55155  Abies procera Gilbert Muth 1979-8-1 12107 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  SD42285  Abronia latifolia Carl B. Wolf 1937-9-9 3064 Humboldt Coast, 2 miles south of Cape Mendocino 6 Comment
  RSA386075  Acer circinatum H. E. McMinn 1931-6-28 2549 Humboldt Orick to Requa Comment
  HSC57655  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-7-25 10828 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC28955  Achillea millefolium Thomas W. Nelson 1971-11-11 597 Humboldt Foot of Murray Rd., McKinleyville. Comment
  CAS-BOT-BC28577  Achillea millefolium J. Clausen 1949-6-22 2158 Humboldt 4 miles S of Scotia on redwood Highway in border of redwood forest near Eel River Comment
  CAS-BOT-BC400020  Achlys triphylla Doris K. Kildale 1928-5-19 5158 Humboldt Chalk Mountain Comment
  HSC70631  Achlys triphylla R. York 1980-5-18 585 Humboldt Near Black Mtn. 390 Comment
  RSA167290  Achnatherum lemmonii var. lemmonii Joseph P. Tracy 1951-6-26 19563 Humboldt Halfway between Snow Camp & Twin Lakes (at Preston's old gate near road) Comment
  HSC45096  Acmispon micranthus R. Sutherland 1978-5-13 3 .13578 Humboldt Mattole River. 282 Comment
  CAS-BOT-BC391606  Actaea rubra Volney Rattan 1883-1-1 s.n. Humboldt Mad Riv. Comment
  CDA24176  Actaea rubra subsp. arguta F. Wetherbee 1962-7-11 Humboldt Bear River Ridge. 0 Comment
  UC169341  Adenocaulon bicolor Joseph P. Tracy 1912-7-27 3880 Humboldt Kneeland Prairie 762 Comment
  OBI1123  Adiantum X tracyi Lawrence L. Kiefer 1964-5-19 1406 Humboldt Garberville, California one mile north of town, ravine just above Highway 101 305 Comment
  HSC952  Adiantum aleuticum C. B. Wolf 1927-8-28 1170 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Rd. to Blue Lake 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
  RSA15581  Ageratina occidentalis Carl B. Wolf 1927-8-27 s.n. Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  UC176467  Agoseris apargioides var. apargioides Joseph P. Tracy 1912-7-7 3746 Humboldt near mouth of Elk River; Northern Coast Region Comment
  SEINET11854998  Agoseris grandiflora J. P. Tracy 1942-1 17276 Humboldt Garberville. North end of town Comment
  OBI17128  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-7-19 17275 Humboldt Vicinity of Garberville Comment
  UC1222944  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1945-7-15 17513 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  OBI6922  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1942-7-18 17276 Humboldt N end fo town. Garberville Comment
  JEPS79803  Agoseris heterophylla Joseph P. Tracy 1933-5-30 12417 Humboldt (near Garberville) Redway 152 Comment
  UC1199484  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1927-5-14 8030 C Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC165755  Agoseris heterophylla var. heterophylla J. P. Tracy 1906-5-13 2455 Humboldt sand hills at Samoa; Ocean Beach Comment
  UC165756  Agoseris heterophylla var. heterophylla J. P. Tracy 1903-5-22 1875 A Humboldt on grassy hills Alder Point 152 Comment
  UC204708  Agrostis alba Joseph P. Tracy 1918-7-5 5018 Humboldt moist field Northern Coast Ranges, White Thorn Valley 304 Comment
  UCR136660  Agrostis alba H. M. Pollard 1948-7-21 s.n. Humboldt Klamath River banks near Orleans 122 Comment
  CHSC111332  Agrostis castellana Barbara L. Wilson; Nick Otting 2012-7-3 17134 Humboldt Dean Creek Resort between the Eel River and the Old Redwood Highway, west of Highway 101; UTM xone 10T, 430910 east, 443867 north. 76 Comment
Read comments
Nov 6 2015
  SEINET3916252  Agrostis exarata H. E. Parks, S. T. Parks 1952-1 7553 Humboldt Spruce Cove, Trinidad.; 0 61 Comment
  UCD52234  Agrostis exarata var. pacifica A. H. Murphy 1948-7-29 s.n. Humboldt Sherman Flat, 3.5 miles north of Blocksburg. Comment
  UC1103526  Agrostis hallii Joseph P. Tracy 1912-7-31 3893 Humboldt nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope Buck Mountain 1066 Comment
  CAS-BOT-BC139124  Agrostis oregonensis Joseph P. Tracy 1924-7-4 6711 Humboldt Northern Coast Ranges. Snow Camp. 1371 Comment
  CAS-BOT-BC138633  Agrostis stolonifera David D. Keck 1938-8-5 4771 Humboldt Big Lagoon. Comment
  HSC104460  Aira caryophyllea Jeff Barrett 2009-4-1 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC34257  Aira caryophyllea A. Montalvo 1975-5-24 281 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC97500  Aira caryophyllea Cara Witte 2007-5-29 123 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  UC526681  Aira caryophyllea Joseph P. Tracy 1927-6-19 8199 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC24612  Aira caryophyllea C. E. Fellows 1965-5-19 88 Humboldt 1.6 mi. S of 7th St. on Hwy. 101 at bridge, E side of Hwy., S side of bridge Comment
  SEINET10835851  Aira caryophyllea A. Arthur Heller 1923-7-8 Heller 13765 Humboldt State redwood camp, 10 miles south of Dyerville. Comment
  CAS-BOT-BC138328  Aira caryophyllea var. caryophyllea Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  HSC102643  Aira elegans J. P. Smith 2009-5-31 12605 Humboldt Bald Hills Road. Comment
  RSA286352  Aira praecox R. F. Thorne 1974-7-29 45069 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  UC526676  Aira praecox Joseph P. Tracy 1925-8-30 7252 Humboldt Freshwater Lagoon North Coast Ranges 60 Comment
  CAS-BOT-BC460752  Allium amplectens Carl Purdy 1933-6-1 s.n. Humboldt Fort Baker Comment
  SEINET195362  Allium amplectens Unknown 1907-6-23 4832 Humboldt Near Yager. Comment
  SEINET199675  Allium amplectens J. P. Tracy 1936-6-17 14975 a Humboldt Little Van Duzen River at hwy crossing 0 Comment
  SEINET7879021 Image available Allium amplectens C. C. Harris, S. K. Harris 1936-1 645 Humboldt On sand and gravel on river bank at point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River, 2330 feet altitude, Humboldt County, California. 710 Comment
  UC666929  Allium bolanderi Joseph P. Tracy 1933-7-9 12652 Humboldt Brannan Mountain 1066 Comment
  HSC100546  Allium campanulatum Carl C. Marshall Jun 1886 304 Humboldt Trail E of Hoopa. Comment
  HSC32148  Allium campanulatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5599 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC666927  Allium campanulatum Joseph P. Tracy 1933-7-25 12863 Humboldt Grouse Mountain 1524 Comment
  RSA46840  Allium campanulatum Doris K. Kildale 1927-7-22 3815 Humboldt Lasseck s Peaks Comment
  HSC67188  Allium falcifolium Thomas W. Nelson, James Nelson 1980-6-10 5424 Humboldt Along NE side of Red Mtn. 1433 Comment
  CAS-BOT-BC469020  Allium falcifolium Carl Purdy 1937-6-1 s.n. Humboldt Grouse Mountain Comment
  HSC65952  Allium hoffmanii M. A. Baker 1980-7-11 2799 Humboldt Near Red Mtn. 1433 Comment
  UC1562908  Allium peninsulare Barbara Ertter with Thomas J. Delendick 1987-5-16 6920 Humboldt ca. 15 air mi e Arcata (ridge below vista, w of Berry Summit on Hwy. 299); Vista Point 914 Comment
  HSC79055  Allium siskiyouense D. K. Imper 1984-5-17 Humboldt Sims Mountain 1280 Comment
  HSC2971  Allium triquetrum N. D. Dennis 1965-4-17 25 Humboldt 1.0 mi. from Arcata on Old Samoa Rd. Comment
  CHSC61689  Allium unifolium Steven Webster 1986-4-12 10 Humboldt Ca. 3 mi s of Prairie creek State Park along Highway 101. 91 Comment
  UC666921  Allium unifolium Joseph P. Tracy 1932-5-22 10113 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC666924  Allium unifolium Joseph P. Tracy 1928-5-20 8437 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  SEINET199682  Allium validum Joseph P. Tracy 1934-8-29 13630 Humboldt South Fork Mountain at McKay Camp. 1676 Comment
  BLMAR219  Allotropa virgata Jeanne McFarland July, 1996 219 Humboldt Red Mountain, growing in Tan oak understory 548 Comment
  HSC58328  Alnus incana subsp. tenuifolia Overton, Butler 1979-8-2 12626 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC54758  Alnus rhombifolia Mrs. Manning Humboldt Hupa Valley Comment
  CAS-BOT-BC169542  Alnus rubra Carl B. Wolf 1930-10-26 1767 Humboldt SO edge of Bog Lagoon, near Redwood Highway Bridge 9 Comment
  HSC62778  Alnus rubra M. Dean Griswold Jr. 1979-5-30 89 Humboldt Along rd. up Jolly Giant Creek Comment
  HSC89484  Alnus rubra P. A. Daly 1984-5-13 22 Humboldt Along trail at Trinidad Head 61 Comment
  RSA28320  Alnus rubra E. K. Balls, P. C. Everett 1953-10-12 18635 Humboldt 5.6 mi. n. of Little River, Hwy 101 between Arcata and Crescent City. 61 Comment
  RSA2928  Alnus rubra C. B. Wolf 1931-8-28 2365 Humboldt Redwood Highway 4.5 mi. no. Fortuna on road to Eureka. 15 Comment
  SBBG25879  Alnus rubra E. R. Blakley 1966-8-17 6797 Humboldt Patrick's Point 5 mi N of Trinidad 60 Comment
  UC503100  Alnus viridis subsp. sinuata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9080 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC8900  Alopecurus pratensis L. M. Malloy 1965-3-27 2 Humboldt Arcata, 0.5 mi. W of Alliance Store along N side of Alliance Rd. Comment
  UCD55924  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton. 30 Comment
  CAS-BOT-BC13703  Ambrosia chamissonis Ira L. Wiggins 1930-7-7 4674 Humboldt Near Samoa Comment
  CAS-BOT-BC13707  Ambrosia chamissonis A. A. Heller 1924-7-21 13869 Humboldt Salt marsh at Eureka Comment
  UC582625  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13688 Humboldt s end, along coast at Dry Lagoon Stone Lagoon 3 Comment
  SEINET200734  Amelanchier alnifolia J. P. Tracy 1908-6-27 2768 Humboldt Valley of Van Duzen River opposity Buck Mtn 762 Comment
  UC418998  Amelanchier alnifolia var. semiintegrifolia H. E. Parks, J. P. Tracy 1925-6-25 3775 Humboldt Lawrence Creek Comment
  CAS-BOT-BC137865  Ammophila arenaria David D. Keck; J. Clausen 1935-6-16 3387 Humboldt Mouth of Little River. Comment
  HSC8841  Ammophila arenaria J. W. Bosworth 1965-5-20 54 Humboldt .25 mi. S of Samoa on the Samoa Rd. Comment
  HSC17836  Anagallis arvensis C. O. Baker 1962-5-7 34 Humboldt 2 mi. S of Trinidad along Hwy. 101 15 Comment
  HSC67526  Anagallis arvensis J. P. Smith 1970-6-7 3806 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  JEPS20544  Anaphalis margaritacea Chesnut and Drew 1888-8-8 Humboldt Arcata Comment
  HSC37663  Anaphalis margaritacea R. Sutherland 1976-8-18 14 .18876 Humboldt 195 Comment
  RSA416575  Anaphalis margaritacea C. B. Wolf 1937-8-13 9213 Humboldt North Coast Range, 9 miles NE of Blue Lake on Lord Ellis Road. 244 Comment
  HSC55331  Anemone deltoidea Griswold, Butler 1979-7-12 7175 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1196194  Anemone deltoidea Joseph P. Tracy 1933-7-11 12711 Humboldt Grouse Mtn; North Coast Ranges; Grouse Mtn 1524 Comment
  CAS-BOT-BC391870  Anemone grayi Doris K. Kildale 1928-5-1 5984 Humboldt MacLellan Mountain 914 Comment
  UC1196190  Anemone oregana Joseph P. Tracy 1901-4-26 1042 Humboldt n slope Humboldt Hill (near Buhne's Ranch, region about Humboldt Bay); North Coast Ranges 0 Comment
  HSC14969  Anemone oregana var. oregana D. E. Anderson 1965-6-1 3756 Humboldt Horse Mtn., near ski lodge 1433 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
  UC1051575  Angelica genuflexa Joseph P. Tracy 1948-9-12 18206 Humboldt Trinity Summit, at Box Camp Trinity Summit; , Box Camp 1463 Comment
  UC1197387  Angelica genuflexa Joseph P. Tracy 1939-10-6 16504 Humboldt opposite to Sunset Cemetary (Bucksport); Bucksport 6 Comment
  UC1222615  Angelica hendersonii Joseph P. Tracy 1950-9-10 19352 Humboldt Bear River Ridge 609 Comment
Read comments
Oct 12 2007
  HSC93230  Angelica lucida Clair Golec 1998-5-29 Humboldt Mouth of Jacoby Creek at Humboldt Bay. Comment
  UCD127119  Angelica lucida Joseph DiTomaso 1980-6-8 1575 Humboldt next to Hwy 101 between Arcata and Eureka. 1 mile south of Indianola Road. 1158 Comment
  UCD127179  Angelica tomentosa Joseph DiTomaso 1980-8-15 1864 Humboldt 5 miles west of Willow Creek at 34.4 mile road mark on Highway 299. Comment
  CAS-BOT-BC94796  Anisocarpus madioides R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 835 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air mi. N of Mattole Road & 3 air mi. W of Hwy 101. 243 Comment
  CAS-BOT-BC271491  Anisocarpus madioides Doris K. Kildale 1927-5-17 3184 Humboldt Fish Creek near Garberville Comment
  UCR48595  Anthemis cotula R. D. Goeden, Don W. Ricker 1987-9-2 870902- 13 Humboldt Loleta, along Cannibal Road 8 Comment
  HSC45641  Anthoxanthum odoratum Diane L. Reed 1978-4-22 33 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC8942  Anthoxanthum odoratum Gerald T. Rood 1962-5-6 11 Humboldt Kneeland Road ca. 1 mi. W of Barry Rd. Comment
  UC1056038  Anthoxanthum odoratum H. E. and S. T. Parks 1952-4 24444 Humboldt Trinidad, Spruce Cove Spruce Cove; Trinidad, Spruce Cove 60 Comment
  HSC104450  Anthriscus caucalis Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 3 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC98831  Apocynum androsaemifolium Cara Witte 2008-7-11 887 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  JEPS49817  Apocynum cannabinum Joseph P. Tracy 1932-6-14 10148 Humboldt Trinity R. Valley, at Willow Creek Trinity R. Valley, Willow Creek 152 Comment
  CAS-BOT-BC392163  Aquilegia formosa Volney Rattan 1879-1-1 s.n. Humboldt Nr Redwood Cr. Comment
  SEINET12104677  Aquilegia formosa E. A. York 1990-1-10 2663 Humboldt USGS Redwood Field Station, Arcata 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
  HSC76286  Aralia californica Teresa Prendusi 1981-7-23 364 Humboldt Near Black Mtn. 890 Comment
  CDA38202  Aralia californica T. Gallion & M. S. Bergseng 1959-7-23 2816 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  CAS-BOT-BC128699  Arbutus menziesii Doris K. Kildale 1927-4-17 3091 Humboldt Briceland Bridge 1/2 mile west of Garberville 114 Comment
  HSC74651  Arbutus menziesii M. A. Baker 1980-5-17 1235 Humboldt Near Le Perron Peak 792 Comment
  UC154180  Arbutus menziesii P. E. Goddard 1901-7-12 65 Humboldt Hupa Valley Comment
  UC582721  Arctostaphylos Joseph P. Tracy 1937-4-3 15247 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC585952  Arctostaphylos Joseph P. Tracy 1927-5-15 8059 Humboldt on rd w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  UC1225937  Arctostaphylos X media Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  JEPS46253  Arctostaphylos canescens A. E. Wieslander 1928-7-18 Humboldt near Hupa Valley Comment
  CAS-BOT-BC25213  Arctostaphylos canescens subsp. canescens L. B. Kildale 1928-4-29 5960 Humboldt Bald Mountain - at Lord-Ellis junction. Comment
  CAS-BOT-BC25215  Arctostaphylos canescens subsp. canescens Clarence Roy Quick 1959-7-24 96 .59-40. Humboldt Bee Mt., ca. 12 miles SW of Orleans Comment
  CAS-BOT-BC23734  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Van Duzen River. Comment
  CAS-BOT-BC23744  Arctostaphylos columbiana Carl B. Wolf 1930-10-29 1040 Humboldt Old coast road, 7 miles so. of Honeydew 304 Comment
  CAS-BOT-BC23782  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13151 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23822  Arctostaphylos columbiana Carl B. Wolf 1930-10-29 1040 Humboldt Old Coast Road, 7 miles south of Honeydew Post Office. 304 Comment
  CHSC63763  Arctostaphylos columbiana Walter Knight; Irja Knight 1988-9-5 6363 Humboldt Bald Hill Road about 21.5 miles from U. S. 101 en route to Hoopa. 929 Comment
  HSC35750  Arctostaphylos columbiana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1994 Humboldt French Camp, Bald Hills. Comment
  HSC89539  Arctostaphylos columbiana M. Roantree 1985-4-28 15 Humboldt W side of Trinidad Head, along trail Comment
  JEPS38616  Arctostaphylos columbiana Lincoln Constance 1934-5-24 638 Humboldt bordering on e side lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  JEPS38964  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13139 Humboldt vicinity of Trinidad 60 Comment
  RSA622678  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27675 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
  RSA622692  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27674 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
  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
  SBBG58415  Arctostaphylos columbiana H. E. Parks 1931-3-25 917 Humboldt near Patrick's Pt Comment
  UC21817  Arctostaphylos columbiana J. Burtt Davy 1899-6-12 5459 Humboldt near Fruitland; North Coast Ranges Comment
  UC549498  Arctostaphylos columbiana J. E. Adams 1935-5-12 1048 Humboldt Patrick's Point Comment
  CAS-BOT-BC23732  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River. Comment
  HSC7633  Arctostaphylos glandulosa J. Pursell 1964-10-18 10185 Humboldt 5 mi. from Hwy. 299 on Bald Mtn. Road Comment
  HSC99559  Arctostaphylos glandulosa subsp. glandulosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 224 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SD42559  Arctostaphylos hispidula Carl B. Wolf 1937-8-13 9226 Humboldt 8.0 miles east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  JEPS38942  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1934-3-11 13154 Humboldt French Camp Ridge Comment
  JEPS38950  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1933-8-6 12958 Humboldt French Camp Ridge 1066 Comment
  HSC35598  Arctostaphylos knightii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2013 Humboldt French Camp, Bald Hills. Comment
  HSC100468  Arctostaphylos manzanita Carl C. Marshall Apr 1886 397 Humboldt Hoopa Valley. Comment
  HSC37829  Arctostaphylos manzanita Thomas W. Nelson, Jane P. Nelson 1976-2-21 2249 Humboldt Tish-Tang Campground Comment
  CAS-BOT-BC24364  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-8-22 2575 Humboldt Bald Hills near Imbinson's. Comment
Read comments
Sep 27 2020
  CAS-BOT-BC38839  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1920-9-14 s.n. Humboldt Mts. near Willow Creek (1st ridge west of Trinity River on Willow Creek Road) Comment
  UC1198680  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1930-6-15 8757 Humboldt Dobbyn Creek 152 Comment
  JEPS38948  Arctostaphylos nevadensis Joseph P. Tracy 1934-3-11 13155 Humboldt French Camp Ridge 1066 Comment
  JEPS38954  Arctostaphylos nevadensis Joseph P. Tracy 1932-7-12 10474 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  UC1196873  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 1/2 Humboldt Horse Mountain 1432 Comment
  UC585958  Arctostaphylos nevadensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8944 Humboldt openings in fir forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC40026  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13992 Humboldt French Camp Ridge 1066 Comment
  HSC74654  Arctostaphylos patula M. A. Baker 1980-5-17 1269 Humboldt Near Le Perron Peak 1066 Comment
  UCD53275  Arctostaphylos patula Joseph P. Tracy 1939-8-16 16419 Humboldt Grouse Mountain. 1524 Comment
  SEINET2028710 Image available Arctostaphylos tracyi H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's Point Comment
  CAS-BOT-BC47215  Arctostaphylos uva-ursi Carl B. Wolf 1930-10-28 1779 Humboldt Samoa, Humboldt Bay. 15 Comment
  CAS-BOT-BC47216  Arctostaphylos uva-ursi Joseph P. Tracy 1940-10-3 s.n. Humboldt Near Samoa, on Humboldt Bay. 6 Comment
  POM212078  Arctostaphylos uva-ursi C. B. Wolf 1930-10-28 1035 Humboldt Samoa. 15 Comment
  HSC70634  Arctostaphylos viscida R. York 1980-5-18 605 Humboldt Near Black Mtn. 390 Comment
  CHSC79650  Arctotheca calendula Gordon Leppig 2000-4-9 1288 Humboldt Arcata. Union St. at 7th St. South of Phillips House. UTM zone 10, 4525N, 409E. 24 Comment
  UCD129123  Arctotheca calendula T. C. Fuller; G. D. Barbe 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale. Comment
  HSC16901  Armeria maritima subsp. californica J. W. Johnson 1962-5-9 1337 Humboldt Arcata, stabilized ridge 3, Christenson Farm, Samoa Peninsula Comment
  HSC16904  Armeria maritima subsp. californica R. J. Vernimen 1963-4-27 41 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  HSC79385  Armeria maritima subsp. californica Kenneth Clark 1981-5-24 1391 Humboldt Abalone Pt. 15 Comment
  UC129315  Arnica cernua Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5645 Humboldt Hoopa Mt. Comment
  UC582488  Arnica cordifolia Joseph P. Tracy 1935-7-30 14372 Humboldt top of ridge s of Red Cap Lake; Salmon Summit 2011 Comment
  CAS-BOT-BC82431  Arnica discoidea Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  UC34161  Arnica discoidea Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  CAS-BOT-BC82429  Arnica discoidea Doris K. Kildale 1927-6-24 3539 Humboldt top of ridge before descent to Shelter Cove Comment
  JEPS20976  Arnica latifolia Mrs. L. B. Kildale 1926-4-25 Humboldt Sugar Bowl Mt. Trinity River, Sugar Bowl Mt. 457 Comment
  HSC32483  Arrhenatherum elatius D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5719 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC1103325  Arrhenatherum elatius Joseph P. Tracy 1927-9-25 8369 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC922020  Arrhenatherum elatius Joseph P. Tracy 1950-6-15 18781 Humboldt 5 mi n of Harris (near top of Mail Ridge); Mail Ridge 1066 Comment
  CDA1730  Arrhenatherum elatius var. bulbosum T. C. Fuller 1966-10-4 15237 Humboldt Northwest portion of Arcata. 0 Comment
  HSC75260  Artemisia douglasiana J. O. Sawyer, M. A. Ericksen 1980-8-18 4054 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  SBBG62497  Artemisia douglasiana H. E. Parks -May-1940 24178 Humboldt Little River Comment
  RSA424565B  Artemisia douglasiana Thomas S. Elias, Barbara A. Elias 1987-8-26 10628 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  SEINET11853294  Artemisia douglasiana J. P. Tracy 1947-1 17892 Humboldt Trinity Summit at Box camp 1463 Comment
  UC153943  Artemisia douglasiana Joseph P. Tracy 1910-9-25 3160 Humboldt on Humboldt Bay 0 Comment
  UC535739  Artemisia dracunculus Eleanor Armstrong 1190 Humboldt Richardson Grove Comment
  CAS-BOT-BC90871  Artemisia pycnocephala Lester Rowntree 1937-8-15 s.n. Humboldt Little River Comment
  HSC4741  Artemisia pycnocephala J. W. Johnson 1961-9-4 1098 Humboldt Christenson Farm, Samoa Peninsula, Arcata. Comment
  OBI17056  Artemisia pycnocephala Carl B. Wolf 1940-11-10 9782 Humboldt Coast S of Mendocino-1/8 mi N of Where rd turns inland to Petrolia Comment
  UC1222994  Artemisia pycnocephala Joseph P. Tracy 1947-8-31 17929 Humboldt Samoa Sand Dunes Comment
  HSC90475  Artemisia pycnocephala Jean Hanson 1980-8-28 123 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  UC127815  Artemisia suksdorfii Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5544 Humboldt near Scotia Comment
  RSA20965  Aruncus sylvester Carl B. Wolf 1937-9-13 9339 Humboldt N coast range, E Fork of Willow Creek at Forest Service Camp. 457 Comment
  RSA46470  Aruncus sylvester Doris K. Kildale 1927-7-3 3663 Humboldt Willow Creek Flat. Comment
  CAS-BOT-BC400537  Asarum caudatum Alice Eastwood 1907-4-21 4 Humboldt Trinidad Comment
  HSC41836  Asarum caudatum Tom Duebendorfer 1977-4-23 10 Humboldt 2.5 mi S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC44110  Asarum caudatum Barbara Kelly 1977-4-23 307 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC91597  Asarum caudatum E. Mackey 1987-3-1 Humboldt Patrick's Point State Park Comment
  UC1198119  Asarum caudatum Joseph P. Tracy 1925-3-15 6942 Humboldt Blue Slide; on Van Duzen River 91 Comment
  POM279301  Asarum caudatum Lyman Benson 1928-7-12 s.n. Humboldt Weott Ranger Station. Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  SEINET12094120  Asarum caudatum F. H. Utech 1988-1 88 -282 Humboldt Bridgeville to Dinsmore on CA 36 800 Comment
  CAS-BOT-BC478833  Asparagus officinalis Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson's Creek, Orleans region Comment
  HSC102613  Aspidotis densa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1600 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC99110  Aspidotis densa Cara Witte 2008-6-13 715 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1382 Comment
  UCD137278  Aspidotis densa Gordon Leppig 1998-7-1 861 Humboldt Ammon Ridge Rd., 1 k east of Titlow Hill Rd. 1432 Comment
  POM161487  Aster brickellioides Joseph P. Tracy 1918-9-18 5223 Humboldt Trinity Summit. 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
  RSA417645  Aster chilensis M. B. Dunkle 1936-8-18 4811 Humboldt Fortuna Comment
  RSA167195  Aster occidentalis Joseph P. Tracy 1941-8-24 17040 Humboldt South Fork Mountain. Near McKay camp. 1677 Comment
  POM288899  Aster radulinus Lyman Benson 1928-7-8 244 Humboldt Weott Ranger Station. Seaward N Coast Mt. Range, S Fork Eel River. 61 Comment
  HSC92746  Astragalus agnicidus Robin Bencie 1993-6-15 1 Humboldt Miranda, 2 mi. W of Hwy. 101 on Bear Butte Rd. 500 Comment
  UC303178  Astragalus pycnostachyus var. pycnostachyus Joseph P. Tracy 1925-7-18 7217 Humboldt 3 mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, s Cape Mendocino 3 Comment
  POM214878  Astragalus rattanii var. rattanii Joseph P. Tracy 1932-6-19 10245 Humboldt Buck Mountain, lower foothills of its northwest slope 762 Comment
  SEINET13761872  Astragalus umbraticus C. Wilson, M. Groberg, B. Meinke 2011-1 s.n. Humboldt On Green Diamond Resource Company private land; Roadside edge on W slope of French Camp Ridge. 853 Comment
  HSC69890  Asyneuma prenanthoides Thomas W. Nelson, Jane P. Nelson 1977-7-30 3662 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  HSC76274  Asyneuma prenanthoides Denis Kearns 1981-7-23 370 Humboldt Near Whiteys Peak 732 Comment
  RSA413349  Athyrium filix-femina subsp. cyclosorum R. Whittaker, W. A. Niering 1963-6-14 491 Humboldt Humboldt Redwoods, Weott Comment
  HSC54884  Athyrium filix-femina var. cyclosorum G. L. Clifton, Terry Griswold 1979-7-25 10892 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC146161  Atriplex gmelinii var. gmelinii Joseph P. Tracy 1905-10-1 2393 Humboldt edge of Humboldt Bay at mouth Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, mouth Eel River 0 Comment
  UC673040  Atriplex leucophylla Joseph P. Tracy 1928-7-25 8489 Humboldt Big Lagoon Big Lagoon (on sea-shore) 3 Comment
  UC1191297  Atriplex patula Malcolm A. Nobs, S. Galen Smith 1949-8-11 1341 Humboldt eastern shore Stone Lagoon; eastern shore Stone Lagoon Comment
  HSC4341  Atriplex prostrata Jerry Parker 1968-10-7 102 Humboldt N of Mad River outlet. Comment
  HSC101657  Avena barbata J. P. Smith, J. O. Sawyer 2011-4-23 13117 Humboldt Along Salmon Creek Rd., 3.4 miles from its junction with U.S. 101. 203 Comment
  HSC5125  Baccharis douglasii Jerry Parker 1968-10-31 225 Humboldt South of Vista Point Comment
  RSA93204  Baccharis douglasii F. W. Peirson 1926-7-13 7061 Humboldt Mad River, vicinity of Blue Lake. Comment
  CAS-BOT-BC98030  Baccharis pilularis Joseph P. Tracy 1923-10-6 6565 Humboldt Eureka, around Humboldt Bay 30 Comment
  POM41974  Baccharis pilularis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1222974  Baccharis pilularis Joseph P. Tracy 1949-10-16 18589 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  CHSC67761  Bellis perennis Vernon H. Oswald 1997-2-12 8305 Humboldt Big Lagoon County Park at the SW edge of Big Lagoon. 3 Comment
  HSC37917  Bellis perennis Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  HSC35711  Berberis aquifolium Thomas W. Nelson 1975-10-12 2238 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC38080  Berberis aquifolium Thomas W. Nelson, James Nelson 1976-5-30 2627 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC76277  Berberis aquifolium var. repens Denis Kearns 1981-7-6 65 Humboldt Near Mosquito Lake 1256 Comment
  JEPS47776  Berberis nervosa Milo S. Baker 1923-7-31 187 Humboldt Lawrence Creek Comment
  CAS-BOT-BC75804  Berberis pinnata Doris K. Kildale 1929-3-19 7026 Humboldt Top of Liscom Hill, from Essex. 853 Comment
  HSC70384  Berberis pinnata M. A. Baker 1980-6-7 1801 Humboldt Near Brush Mtn. 1128 Comment
  UC1222968  Bidens frondosa Joseph P. Tracy 1950-8-20 19318 Humboldt 2 mi sw of Orleans Comment
  HSC55079  Bistorta bistortoides G. L. Clifton, Griswold 1979-7-31 11712 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC55339  Bistorta bistortoides Griswold, Butler 1979-7-12 7192 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CHSC26466  Blechnum spicant J. Detzer 1977-4-8 3 Humboldt S end of Patricks Point State Park, ca. 0.2 mi w of Hwy. 101 and 5 mi n of Trinidad. 60 Comment
  HSC72946  Blechnum spicant M. Sacks 1977-4-8 4 Humboldt S end of Patrick's Point State Park 0.2 mi. W of Hwy. 101 and 5 mi. N of Trinidad 61 Comment
  HSC91603  Blechnum spicant E. Mackey 1986-10-24 Humboldt Patrick's Point State Park, by trail to Agate Beach Comment
  HSC98997  Blechnum spicant Cara Witte 2008-7-28 959 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1641 Comment
  JEPS53080  Boechera Joseph P. Tracy 1917-9-2 4838 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  UC902015  Boechera acutina Harold E. Parks and Joseph P. Tracy 1949-6-25 11678 Humboldt Box Camp Trinity Summit 1463 Comment
  POM256476  Boisduvalia densiflora Joseph P. Tracy 1938-7-5 16003 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 Comment
  CHSC84999  Bolboschoenus maritimus subsp. paludosus L. P. Janeway 2003-7-28 7933 Humboldt North Coast. Edge of small inlet on east side of Big Lagoon 0.3 km south of the mouth of Tom Creek. 2 Comment
  HSC41347  Boschniakia strobilacea Brad Klipfel 1974-8-2 501 Humboldt Horse Mtn. Comment
  HSC74466  Boschniakia strobilacea M. A. Baker 1980-5-17 1200 Humboldt Near Le Perron Peak 792 Comment
  HSC44566  Boschniakia strobilacea R. York 1978-5-18 173 Humboldt Near Bluff Creek Trail 671 Comment
  UC197916  Botrychium multifidum Joseph P. Tracy 1906-11-4 2551 Humboldt Eureka Northern Coast Region 0 Comment
  HSC64840  Boykinia occidentalis J. P. Smith 1973-5-26 6861 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC99841  Boykinia occidentalis C. B. Wolf 1927-8-22 798 Humboldt Big Lagoon 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
  UCSB23762  Boykinia occidentalis Breedlove, Dennis 1962-6-8 Humboldt Along U.S. Highway 101; 8 miles north of Orick; 60 Comment
  HSC37950  Brassica nigra Peter Sorensen 1976-6-16 Humboldt Woodley Island, Humboldt Bay Comment
  UC1126837  Brassica rapa H. L. Person 1932-7-23 Humboldt Korbel Comment
  HSC6584  Brassica rapa Richard Steele 1962-2-25 2 Humboldt Arcata, 0.5 mi. W of HSU campus 15 Comment
  HSC6589  Brassica rapa D. E. Anderson 1962-1-31 1909 Humboldt Blue Lake, near oxidation pond Comment
  CAS-BOT-BC106298  Brickellia californica Frank W. Peirson 1926-7-13 7048 Humboldt Mad River, vicinity of Blue Lake Comment
  RSA47155  Brickellia californica Doris K. Kildale 1926-8-29 2593 Humboldt Van Duzen River at Strong's Station Comment
  UC165031  Brickellia californica Joseph P. Tracy 1900-9-10 960 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  RSA249403  Briza maxima J. D. Ackerman 1974-5-26 268 Humboldt ca. 1 mile south of Trinidad on Scenic Drive. Near coastal bluffs. Comment
  SEINET3132624  Briza maxima D. E. Anderson 1965-5-8 3626 Humboldt T6N, R2E, sec 29, about 1 mi E Blue Lake on Hwy 299 Comment
  UCR274950  Briza maxima Charity A. Hartshorn 2016-4-24 25 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  CAS-BOT-BC145570  Briza minor Doris K. Kildale 1925-6-28 916 Humboldt Fleener Creek. Comment
  HSC79436  Briza minor Kenneth Clark 1980-6-14 664 Humboldt Shelter Cove, lower alluvial terrace of Dead Man's Gulch 30 Comment
  UC146225  Brodiaea elegans subsp. elegans Joseph P. Tracy 1908-6 2855 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UCR123923  Brodiaea elegans subsp. elegans George K. Helmkamp, E. A. Helmkamp 2001-7-8 6967 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  SEINET200766  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1942-6-15 17125 Humboldt Englewood Natural prairie near Redcrest resort 91 Comment
  UC15039  Brodiaea terrestris subsp. terrestris J. P. Tracy 1901-6-23 1159 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC484614  Brodiaea terrestris subsp. terrestris D. E. Breedlove 1962-6-7 3038 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC91591  Brodiaea terrestris subsp. terrestris E. Mackey 1986-6-18 Humboldt Patrick's Point State Park on Ceremonial Rock Comment
  UC1197743  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1904-7-4 2114 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC99002  Bromus carinatus var. carinatus Cara Witte 2007-6-28 391 Humboldt Intersection of 6N08 (Friday Ridge Road) and 5N39. 1475 Comment
  SEINET200637 Image available Bromus commutatus Joseph P. Tracy 1917-6-24 4824 Humboldt Holmes Flat 61 Comment
  RSA126903  Bromus hordeaceus H. S. Yates 1936-6-17 5716 Humboldt Near Burr valley; South Fork Pk. 915 Comment
  UC176584  Bromus hordeaceus Joseph P. Tracy 1911-7-5 3310 Humboldt near mouth of Willow Creek (Valley of Trinity River); Northern Coast Ranges 152 Comment
  HSC71600  Bromus laevipes M. A. Baker 1980-6-26 2411 Humboldt Near Sims Creek 610 Comment
  UC37636  Bromus laevipes Harley P. Chandler June, 1901 1512 A Humboldt North Coast Ranges, Klamath River Klamath River; North Coast Ranges, Klamath River 426 Comment
  UC204535  Bromus sterilis Joseph P. Tracy 1916-5-31 4701 Humboldt along Eel River from South Fork to Scotia, Stitz Creek Stitz Creek; Northern Coast Ranges, Eel River, Stitz Creek 60 Comment
  UC1103353  Bromus tectorum Joseph P. Tracy 1933-6-13 12600 Humboldt from Hoopa westward to Bair's (near summit of Horse Mountain); Horse Mountain 914 Comment
  UC526728  Bromus tectorum Joseph P. Tracy 1931-5-3 9349 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  HSC44136  Cacaliopsis nardosmia Thomas W. Nelson, Jane P. Nelson 1977-7-1 3570 Humboldt Along N side of ridge between Bear and Blanket Creeks 1494 Comment
  SD38262  Cakile edentula var. edentula Edith A. Purer 1932-7-27 4140 Humboldt Samoa Comment
  HSC40408  Cakile maritima Linda M. Barker 1976-6-22 1627 Humboldt 3 mi. W of Arcata Comment
  UC526774  Calamagrostis breweri Joseph P. Tracy 1932-7-14 10553 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC185314  Calamagrostis foliosa Kenneth Clark 1980-5-10 641 Humboldt Shelter Cove. In the area of the Point. 1 Comment
  UC1565648  Calamagrostis foliosa Ken S. Berg 1986-9-13 Humboldt Shelter Cover Telegraph Creek (mouth of creek) Comment
Read comments
Mar 31 2007
  UC1198380  Calandrinia ciliata Joseph P. Tracy 1933-5-28 12405 Humboldt Ocean View Cemetary Eureka 15 Comment
  HSC100897  Calandrinia pygmaea Carl C. Marshall Jun 1886 318 Humboldt Trinity Summit. Comment
  CHSC106732  Callitriche heterophylla var. bolanderi Robert F. Thorne; P. Everett 1965-8-9 35323 Humboldt Clam Beach County Park: along highway in shallow water of ditch. 3 Comment
  RSA729025  Callitriche heterophylla var. bolanderi R. F. Thorne, P. C. Everett 1965-8-9 35323 Humboldt Clam Beach County Park: along highway. 3 Comment
  CAS-BOT-BC488451  Calochortus amabilis M. S. Jussel 1931-5-2 n.s. Humboldt Sylvandale, 8 miles N. of Barbarville Comment
  CAS-BOT-BC487804  Calochortus coeruleus H. C. Cantelow 1939-6-5 3947 Humboldt Dinsmore Meadow Comment
  HSC38517  Calochortus tolmiei D. E. Anderson, J. P. Smith 1971-6-18 - 1082 Humboldt Horse Mtn. Comment
  UCD139588  Calochortus tolmiei Collector Unknown 1935-4-8 s.n. Humboldt Fort Seward. Comment
  HSC34909  Calochortus tolmiei Thomas W. Nelson 1975-5-27 1883 Humboldt Beside Petrolia-Ferndale Rd., 5 mi. S of Ferndale Comment
  HSC44357  Calochortus tolmiei Brad Klipfel 1974-5-27 399 Humboldt Horse Mtn., ridge top near forks in rd. Comment
  UC1197687  Calochortus tolmiei Joseph P. Tracy 1913-6-10 4086 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC198648  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt w of Dows Prairie; Northern Coast Ranges 15 Comment
  UC1222546  Calochortus vestae Joseph P. Tracy 1950-7-6 19004 Humboldt 2 mi s Burr Valley (on the Albee Raod) 1158 Comment
  CAS-BOT-BC273310  Calycadenia fremontii G. D. Carr 1974-9-12 785 Humboldt 2.1 mi W of Hwy 299 on Friday Ridge Rd, ca. 3.5 mi WSW of Salyer 458 Comment
  CAS-BOT-BC273318  Calycadenia fremontii Joseph P. Tracy 1938-8-14 16117 Humboldt South Fork of Trinity River 304 Comment
  HSC16572  Calypso bulbosa Norman H. Moe 1962-4-26 Humboldt Lanphere's Place Comment
  RSA381907  Calypso bulbosa Pearl Ryan 1917-6-1 s.n Humboldt Hoopa Comment
  RSA168802  Calypso bulbosa Joseph P. Tracy 1950-5-7 18643 Humboldt Under firs: about 5 miles north of Bridgerville on the road to the South Yager Valley. Abundant in certain favored spots only. Comment
  SEINET12076826  Calypso bulbosa Unknown 1977-1 Humboldt Comment
  JEPS52522  Calyptridium umbellatum W. L. Jepson 1902-7-16 2040 Humboldt Trinity Summit 2133 Comment
  UC13637  Calyptridium umbellatum Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  UC1197885  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1928-7-7 16028 Humboldt Horse Mountain 1432 Comment
  HSC79454  Calystegia purpurata subsp. purpurata Kenneth Clark 1980-4-18 604 Humboldt Above Dead Man's Gulch near parking access 137 Comment
  HSC6365  Calystegia soldanella R. E. Hafenfeld 1965-5-9 58 Humboldt Near mouth of Ossagon Cr. on Gold Bluff Beach Comment
  RSA337437  Calystegia soldanella R. F. Thorne, P. C. Everett, K. Thorne 1965-8-9 35307 Humboldt Big Lagoon. 3 Comment
  RSA34296  Calystegia soldanella J. Wendell Howe 1933-5-23 s.n. Humboldt Samoa Comment
  RSA394824  Calystegia soldanella B. C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  UCD126159  Calystegia soldanella Linda M. Barker 1976-6-1 1559 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC18855  Calystegia soldanella P. F. Yull 1966-5-5 144 Humboldt 1 mi. S of Fairhaven Comment
  SEINET12330004  Calystegia soldanella F. H. Utech 1986-1 86 -402 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  HSC33753  Camissonia cheiranthifolia A. Montalvo 1975-5-24 267 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  RSA167258  Camissonia ovata Joseph P. Tracy 1951-5-5 19392 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town 61 Comment
  CAS-BOT-BC160242  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  SEINET10939002  Campanula prenanthoides Tracy 1934-8-23 TRACY 13600 Humboldt Willow Creek Canyon 457 Comment
  HSC74731  Campanula scouleri Gail Newton 1981-7-24 2300 Humboldt Near Chaparral Mtn. 1433 Comment
  SEINET10463746  Campanula scouleri Newton 1981-7-23 Newton 2280 Humboldt Pilot Creek quadrangle; near Bug Creek Butte, streamside. 1350 Comment
  HSC100410  Campanula scouleri Carl C. Marshall Jun 1886 243 Humboldt Redwood region, 'wild grass'. Comment
  SEINET201622  Campanula scouleri Joseph P. Tracy 1937-7-25 15560 Humboldt Happy Camp Mountain In Trinity Summit Range NE of Hawkins Bar. 1280 Comment
  UC1585406  Campanula scouleri R. Raiche, K. Zadnik, and H. Forbes 1991-10-2 UCBG 28 Humboldt on Bair Rd. sw Hoopa; Pine Ridge Summit 970 Comment
  HSC44272  Cardamine californica Barbara Kelly 1977-4-23 300 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  CHSC110707  Cardamine californica var. californica Dean Wm. Taylor 2004-6-24 19143 Humboldt Spike Buck Mountain, north slope thereof. 1432 Comment
  UC494001  Cardamine californica var. sinuata Parks and Tracy 916 Humboldt Lower Van Duzen River 60 Comment
  HSC60299  Cardamine nuttallii Phyllis Krieg 1979-5-8 Humboldt 0.25 mi. E of Old Arcata Rd. on Golf Course Rd., Bayside, next to a house 15 Comment
  UCR45400  Cardamine oligosperma Barry Silver 1986-4-23 539 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC79513  Cardamine oligosperma Kenneth Clark 1980-3-2 512 Humboldt Middle alluvial terrace, Dead Man's Gulch 37 Comment
  UC552295  Cardaria draba Joseph P. Tracy 1933-5-19 12201 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  UCD150620  Cardionema ramosissimum Linda M. Barker 1976-4-13 1386 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC17792  Carex amplifolia Doris Kildale 1931-6-6 10865 Humboldt Gans Prairie, Orick - Weitchpec road. Comment
  UC1103586  Carex amplifolia Joseph P. Tracy 1933-8-6 12948 Humboldt French Camp Ridge 1066 Comment
  HSC70464  Carex aquatilis Gail Newton 1980-7-20 1646 Humboldt Near Bell Swamps 1426 Comment
  UC562253  Carex aquatilis var. dives Joseph P. Tracy 1935-6-8 13948 Humboldt along coast in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 6 Comment
  HSC98944  Carex athrostachya Cara Witte 2008-7-16 922 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  UC194819  Carex athrostachya Joseph P. Tracy 1911-7-7 3373 Humboldt 3 mi NW of junction of Willow Creek with Trinity River, and near Beebes Ranch Northern Coast Ranges 914 Comment
  RSA91675  Carex athrostachya Joseph P. Tracy 1935-7-27 14306 Humboldt Trinity Summit, open places at McKay Prairie. 1585 Comment
  CAS-BOT-BC19218  Carex barbarae Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UC562312  Carex barbarae Joseph P. Tracy 1929-6-23 8606 Humboldt Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC19437  Carex bolanderi Robert F. Thorne; P. Everett 1965-8-5 35128 Humboldt Wailaki Recreation Site. 518 Comment
  CHSC90273  Carex brainerdii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8588 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  CAS-BOT-BC34013  Carex brevicaulis Joseph Prince Tracy 1939-4-27 16228 Humboldt Mouth of Little River. 9 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
  RSA246847  Carex buxbaumii Robert F. Thorne, Percy C. Everett 1965-8-9 35293 Humboldt Big Lagoon. 3 Comment
  UC1598405  Carex buxbaumii Joy Mastrogiuseppe 1987-6-4 4571 Humboldt in middle bog Big Lagoon Sphagnum bog Comment
  CAS-BOT-BC34973  Carex densa Joseph Prince Tracy 1936-6-3 14847 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC34976  Carex densa Joseph Prince Tracy 1936-6-3 14848 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CHSC97053  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common in northern section. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  CAS-BOT-BC19968  Carex exsiccata Milo S. Baker 1927-8-21 24706 Humboldt Near Bald Mountain. 914 Comment
  JEPS63725  Carex feta Joseph P. Tracy 1916-6-20 4734 Humboldt Dyke Ranch Northern Coast Ranges, Alder Point, Dyke Ranch 304 Comment
  CAS-BOT-BC21281  Carex fracta Joseph Prince Tracy 1937-7-25 15542 Humboldt Trinity Summit. Head of Hors-Linto Creek. 1371 Comment
  HSC89402  Carex geyeri L. P. Janeway 1984-6-17 845 Humboldt On ridge E of Horse Mtn. 1433 Comment
  CAS-BOT-BC20870  Carex globosa Joseph Prince Tracy 1932-4-23 9832 Humboldt North Coast Ranges. Englewood. 91 Comment
  HSC96578  Carex gynodynama Gordon Leppig, Todd Treadwell 2005-6-8 2249 Humboldt Blue Slide Creek watershed, Pacific Lumber Co. land. 245 Comment
  SEINET8068029 Image available Carex harfordii A. L. Hipp 1999-1 438 Humboldt Phillipsville-Edge of 101 (Redwood Hwy), big E-turn just S. of the Miranda exit. Comment
  HSC70469  Carex hendersonii J. P. Tracy 1905-6-25 2202 Humboldt Eureka 0 Comment
  IRVC1227  Carex hendersonii R. H. Whittaker, W. A. Niering U Humboldt Humboldt Redwoods State Park. Comment
  CHSC90286  Carex laeviculmis Thomas W. Nelson; Jane P. Nelson 1987-6-11 8587 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  UC1103625  Carex lenticularis var. limnophila Joseph P. Tracy with H. E. Parks 1924-8-3 6766 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC58803  Carex lenticularis var. lipocarpa G. L. Clifton, Griswold 1979-7-31 11681 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC31470  Carex leptopoda Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon. Comment
  CAS-BOT-BC31582  Carex luzulina var. luzulina Doris K. Kildale 1931-5-10 10692 Humboldt Snow Camp. Comment
  CAS-BOT-BC31584  Carex luzulina var. luzulina Joseph Prince Tracy 1930-7-16 8987 Humboldt South Fork Mountain, in wet meadow at McKay Camp. 1676 Comment
  CAS-BOT-BC31660  Carex lyngbyei Joseph Prince Tracy 1927-7-16 8428 Humboldt Near mouth of Elk River, Humboldt Bay. 3 Comment
  UCR138659  Carex lyngbyei Gordon Leppig 1996-5-17 333 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary. Butcher Slough, E side about 20 m north of Interpretive Center Parking lot, just west of Sout I St 1 Comment
  HSC98941  Carex mendocinensis Cara Witte 2008-6-4 682 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1276 Comment
  HSC98991  Carex multicaulis Cara Witte 2008-6-13 718 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  UC103569  Carex multicaulis Joseph P. Tracy 1912-7-31 3940 Humboldt near Buck Mountain summit; Northern Coast Ranges 1524 Comment
  UC709391  Carex multicaulis Joseph P. Tracy 1941-4-11 16857 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC44075  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-7-1 2932 Humboldt W of Mount Lassic (Signal Peak) 1677 Comment
  HSC44076  Carex multicostata Thomas W. Nelson, James Nelson 1976-7-26 3034 Humboldt W of Mount Lassic (Signal Peak) 1707 Comment
  JEPS80024  Carex nudata Joseph P. Tracy 1911-6-4 3221 Humboldt along Little River 5 mi from coast; Northern Coast Region, Little River 121 Comment
  POM126515  Carex nudata Joseph P. Tracy 1922-5-29 6069 Humboldt South Yager Creek Valley. 762 Comment
  SEINET11632152  Carex nudata H. P. Chandler 1901-1 1235 Humboldt Redwood Belt, North Coast Ranges 91 Comment
  HSC90676  Carex obnupta Gail Newton 1982-6-1 3569 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC562323  Carex obnupta Joseph P. Tracy 1934-7-30 13503 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  JEPS80020  Carex obnupta Joseph P. Tracy 1912-6-16 3701 Humboldt above edge of salt marsh at Hookton Northern Coast Region, Humboldt Bay, Hookton 0 Comment
  POM160309  Carex ovalis Joseph P. Tracy 1926-6-20 7631 Humboldt Horse Mountain. 1463 Comment
  UC709399  Carex pachystachya Joseph P. Tracy 1938-7-18 16083 Humboldt Eureka 30 Comment
  CAS-BOT-BC119222  Carex pachystachya Harold Ernest Parks; Joseph Prince Tracy 1935-6-16 11271 Humboldt Buck Mt. Lower NW slope. 792 Comment
  HSC98595  Carex pachystachya Cara Witte 2008-8-6 1017 Humboldt Intersection of Forest Service Road 4E27 and National Forest 1. South of trail to Board Camp Butte. 1479 Comment
  HSC98947  Carex pachystachya Cara Witte 2008-7-2 810 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  CAS-BOT-BC119165  Carex pansa David Daniels Keck 1938-8-5 4766 Humboldt Calm Beach in dunes. Comment
  UCSC000108  Carex pansa C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC70467  Carex rossii J. P. Tracy 1904-5-1 2041 Humboldt Eureka 0 Comment
  UC213329  Carex scopulorum var. bracteosa Joseph P. Tracy 1919-9-25 5298 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  CAS-BOT-BC116941  Carex subbracteata Harley Pierce Chandler 1901-5-1 1115 Humboldt Humboldt Bay 30 Comment
  CHSC102860  Carex subbracteata Peter F. Zika 2009-6-16 24500 Humboldt Outer North Coast Range. Above Route 299, 0.7 road miles W of Berry Summit. 780 Comment
  UC1103097  Carex subbracteata J. P. Tracy 1900-6-25 861 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC116939  Carex subbracteata Joseph Prince Tracy 1935-7-14 14087 Humboldt Wet meadow, Grouse Mountain. 1524 Comment
  CAS-BOT-BC115568  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-22 4736 Humboldt Near Alder Point Comment
  CAS-BOT-BC115570  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-23 4848 Humboldt Kneeland Comment
  JEPS75415  Carex tumulicola W. L. Jepson 1932-7-26 16415 Humboldt Bull Creek 106 Comment
  UC585640  Carex tumulicola Joseph P. Tracy 1937-6-20 15338 Humboldt 10 mi up stream from mouth Bear River 152 Comment
  UC1115805  Carex tumulicola Joseph P. Tracy 1939-4-29 16254 Humboldt Orleans 121 Comment
  CAS-BOT-BC115538  Carex unilateralis Joseph Prince Tracy 1927-7-17 8276 Humboldt Three Cabins; grassy slopes on lower western foothills of Chaparral Mountain. 457 Comment
  UC709397  Carex vesicaria var. major Joseph P. Tracy 1938-9-25 16170 Humboldt Lake Prairie Bald Mountain 1066 Comment
  HSC7090  Carex viridula B. D. Rogers 1965-10-2 1017 Humboldt Big Lagoon 0 Comment
  SEINET190456  Carex viridula H. E. Parks 5214 Humboldt Dry Lagoon south of Orick. 130 Comment
  SEINET7581203 Image available Carex viridula H. E. Parks 5214 Humboldt South of Orick. Comment
  HSC2872  Carpobrotus chilensis S. J. Hawks 1965-5-14 58 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  SEINET12027436  Castanopsis chrysophylla J. P. Tracy 1950-1 19239 Humboldt Grouse Mtn 1524 Comment
  JEPS82  Castilleja affinis subsp. affinis Lincoln Constance 1934-3-29 715 a Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  JEPS15614  Castilleja affinis subsp. litoralis Rimo Bacigalupi with G. Thomas Robbins and C. L. Custer 1954-8-11 4758 Humboldt 1.2 mi s Trinidad Comment
  JEPS25792  Castilleja affinis subsp. litoralis L. R. Heckard 1960-8-23 1210 Humboldt about 0.5 mi s Dry Lagoon State Park (near Orick) 152 Comment
  UC902223  Castilleja affinis subsp. litoralis Joseph P. Tracy 1947-5-24 17692 Humboldt Big Lagoon 152 Comment
  HSC90777  Castilleja ambigua subsp. humboldtiensis Peter Sorensen 1976-6-16 Humboldt Woodley Island. Comment
  HSC90779  Castilleja ambigua subsp. humboldtiensis Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  HSC90966  Castilleja ambigua subsp. humboldtiensis Gail Newton 1982-6-5 3575 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC1222799  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1950-6-17 18839 Humboldt Eureka slough at the railroad bridge Eureka Comment
  JEPS26533  Castilleja applegatei subsp. martinii Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC535764  Castilleja applegatei subsp. martinii Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  HSC72403  Castilleja applegatei subsp. pinetorum J. P. Smith 1973-5-26 6834 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC199382  Castilleja applegatei subsp. pinetorum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC96265  Castilleja attenuata Jennifer Lumbert, James Robinson 2005-6-10 9 Humboldt Cold Springs Campground, 7.4 mi. S of Hwy. 299 on NF1 1357 Comment
  HSC39093  Castilleja exserta subsp. exserta R. Sutherland 1976-6-8 1 .8676 Humboldt 407 Comment
  HSC40935  Castilleja exserta subsp. latifolia Linda M. Barker 1976-6-1 1545 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  JEPS13340  Castilleja rubicundula subsp. lithospermoides Parks and Tracy 1930-5-25 796 Humboldt Laribee Valley 792 Comment
  UC1502102  Ceanothus R. Sutherland 1975-7-4 3 .4.7 75 Humboldt se corner of S 11 Pt. Delgada Quad. 548 Comment
  HSC41300  Ceanothus arcuatus Brad Klipfel 1974-7-27 499 Humboldt Horse Mtn. Comment
  RSA758814  Ceanothus arcuatus D. H. Wilken, E. L. Painter 2007-6-4 16738 Humboldt Titlow Road, 1.3 linear km southwest of summit of Horse Mountain, west of head of Horse Mountain Creek. 1325 Comment
  SBBG4195  Ceanothus foliosus var. foliosus H. and M. Dearing 1932-5-10 987 Humboldt near Blue Lake Comment
  HSC37053  Ceanothus incanus R. Sutherland 1975-5-26 1 .26575 Humboldt 305 Comment
  RSA186940  Ceanothus integerrimus Marcus E. Jones 1931-7-16 28946 Humboldt Junction, East of Arcata. Comment
  SEINET7720975  Ceanothus integerrimus Chesnut, Drew 1888-7-9 Humboldt Kneeland Comment
  HSC36674  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 3 .11775 Humboldt Along county rd. 290 Comment
  UC203857  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1918-7-3 4986 Humboldt Wilder Ridge Northern Coast Ranges 457 Comment
  HSC36677  Ceanothus parryi R. Sutherland 1975-5-5 7 .5575 Humboldt Near Ettersburg Rd. 457 Comment
  HSC36679  Ceanothus parryi R. Sutherland 1975-5-2 11 .2575 Humboldt County rd. at S Fork Eeel River 95 Comment
  UC1502108  Ceanothus parryi R. Sutherland 1975-4-19 A 4 .19.4.75 Humboldt Whitethorn Road at Van Arken Creek; Briceland Quad., Van Arken Creek 298 Comment
  UC249583  Ceanothus parryi Joseph P. Tracy 1921-5-27 5808 1/2 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  UCD112499  Ceanothus parryi B. L. Kay 1955-6-2 s.n. Humboldt Wagner Ranch, 5 miles southwest of Graberville. Comment
  RSA46804  Ceanothus thyrsiflorus Doris K. Kildale 1927-3-29 3289 Humboldt Bug Creek. Comment
  RSA46882  Ceanothus thyrsiflorus Doris K. Kildale 1926-6-18 2399 Humboldt Gold Bluffs. Comment
  RSA46888  Ceanothus thyrsiflorus Doris K. Kildale 1926-3-20 1626 Humboldt Liscom Hill-Mad River Comment
  UC1004333  Ceanothus thyrsiflorus W. L. Colwell 1954-11-20 21 Humboldt along Eel River 3 mi e South Fork (Quad. 29B4); along Eel River e of South Fork, Quad. 29B4 91 Comment
  UC1193281  Ceanothus thyrsiflorus K. Cuff 124 Humboldt 8 mi e Petrolia; Quad. 28A3 60 Comment
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Jul 25 2009
  UC176985  Ceanothus thyrsiflorus Joseph P. Tracy 1912-7-23 3800 Humboldt 5 mi above the mouth South Fork Eel River; Northern Coast Ranges, along South Fork Eel River 30 Comment
  UC164836  Ceanothus velutinus Joseph P. Tracy 1911-7-9 3455 Humboldt along Willow Creek (tributary of Trinity River, near its mouth); Northern Coast Ranges, along Willow Creek 182 Comment
  SEINET12211103  Ceanothus velutinus F. H. Utech 1986-1 86 -383 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  SEINET13946128 Image available Ceanothus velutinus S. K. Harris 1942-1 1257 Humboldt Fickle Hill Road, 5 mi N and 2 mi E of Boynton Prairie; ca 630 m alt. 630 Comment
  RSA46890  Ceanothus velutinus var. laevigatus Doris K. Kildale 1926-4-25 1812 Humboldt Hoopa Mt. Comment
  CDA7302  Centaurea X pouzinii T. C. Fuller 1960-8-25 4975 Humboldt Pacific Lumber Company, Perrott Creek, across Eel River from Dyerville. 0 Comment
  RSA391522  Centaurium muehlenbergii M. V. Hood 1940-08 s.n. Humboldt Eel River - near Redway. 457 Comment
  HSC104291  Cephalanthera austiniae Samantha E. Andres 2016-5-6 23 Humboldt About 4 mi. W on Mattole Rd. from the South Fork/Honeydew exit, above Harper Creek 128 Comment
  HSC74322  Cephalanthera austiniae Gail Newton 1980-7-20 1627 Humboldt Near Bell Swamps 1426 Comment
  JEPS64313  Cephalanthera austiniae W. L. Jepson 1902-7-14 2027 Humboldt Mud Spring to Summit Trinity Summit 1219 Comment
  SBBG2066  Cerastium arvense H. and M. Dearing 1933-5-16 236 Humboldt near Garberville Comment
  UC1198320  Cerastium glomeratum Joseph P. Tracy 1911-7-5 3308 Humboldt near mouth Willow Creek; Northern Coast Ranges, Willow Creek (tributary of Trinity R. 182 Comment
  UC161008  Cerastium glomeratum Joseph P. Tracy 1900-5-24 803 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC83997  Cerastium glomeratum L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 220 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  HSC100414  Cerastium nutans Carl C. Marshall Jun 1887 446 Humboldt Throughout Humboldt County. Comment
  HSC98195  Cercis occidentalis Francis Winter 1960-4-24 Humboldt 8 mi. W of Hoopa Indian Reservation, Bair Rd. 686 Comment
  RSA2940  Cercis occidentalis Carl B. Wolf 1931-8-31 2380 Humboldt West side of South fork of Trinity River, 1 mi. above its mouth. Comment
  HSC98520  Chamerion angustifolium subsp. circumvagum Cara Witte 2008-8-6 998 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  HSC82123  Cheilanthes gracillima Thomas W. Nelson 1979-7-11 4997 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC197915  Cheilanthes gracillima Joseph P. Tracy 1912-7-26 3841 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC4361  Chenopodium album D. E. Anderson 1961-9-13 1810 Humboldt Big Lagoon County Park Comment
  JEPS59740  Chenopodium botrys Lincoln Constance 1934-5-27 690 Humboldt Dyerville bridge South Fork Eel River, Bull Creek Region (s end, gravel bar of river) 45 Comment
  UC154192  Chimaphila menziesii Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC48861  Chimaphila umbellata Brad Klipfel 1973-7-31 243 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC116156  Chimaphila umbellata Harley P. Chandler June, 1901 1398 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  CAS-BOT-BC452227  Chimaphila umbellata Volney Rattan 1878-6-1 s.n. Humboldt North of Mad River Comment
  JEPS66585  Chimaphila umbellata Lincoln Constance 1934-6-14 873 Humboldt 2 mi. from mouth of Squaw Creek (on rd. to Grasshopper Peak); Bull Creek Region, S. Fork Eel R. 304 Comment
  UC176054  Chimaphila umbellata Joseph P. Tracy 1913-7-20 4368 Humboldt near Three Creeks on Willow Creek Rd.; N. Coast Ranges 1066 Comment
  UC14998  Chlorogalum pomeridianum var. pomeridianum P. E. Goddard 1901-7 44 Humboldt Hupa Valley Comment
  JEPS61591  Chlorogalum pomeridianum var. pomeridianum Lincoln Constance 1934-6-12 866 Humboldt Bull Creek Road and n bank South Fork Eel River (Bull Creek Region, Dyerville); Bull Creek Region, N bank South Fork Eel River, Dyerville Comment
  POM289618  Chrysanthemum leucanthemum Lyman Benson 1928-7-10 421 Humboldt Hills at Fortuna; Seaward N Coast Mt. Range, Mouth of Eel River 30 Comment
  CAS-BOT-BC36478  Chrysolepis chrysophylla Doris Kildale Gillespie 1931-6-7 10592 Humboldt South Fork Mt. Blake lookout 1726 Comment
  HSC70637  Chrysolepis chrysophylla R. York 1980-5-18 597 Humboldt Near Black Mtn. 792 Comment
  UC672860  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1940-8-25 16715 Humboldt Bald Mountain 975 Comment
  UC667994  Chrysolepis sempervirens Joseph P. Tracy 1937-7-29 15585 Humboldt summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  RSA183599  Cinna latifolia D. E. Anderson 1965-9-5 4085 Humboldt Along Mad river, ca. 3 miles south of Blue Lake Comment
  HSC70502  Circaea alpina subsp. pacifica Gail Newton 1980-7-20 1620 Humboldt Near Bell Swamps 1426 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
  UCR131740  Circaea alpina subsp. pacifica C. B. Wolf 1937-8-13 09253 Humboldt North Coast Range, 11 miles east of Hoopa Valley on new road toward Trinity Summit 1584 Comment
  CAS-BOT-BC284405  Cirsium arvense Doris K. Kildale 1925-7-26 1069 Humboldt Mad River at West End Crossing Comment
  HSC40131  Cirsium arvense Thomas W. Nelson, James Nelson 1976-7-28 3082 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  CAS-BOT-BC279976  Cirsium douglasii var. douglasii Peter H. Raven; R. Snow 1958-7-20 13647 Humboldt Along Titlow Hill Road 3.8 miles south of United States Highway 299 Comment
  UC1223056  Cirsium occidentale var. candidissimum Joseph P. Tracy 1942-8-9 17302 Humboldt at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC582532  Cirsium remotifolium var. odontolepis Joseph P. Tracy 1930-7-21 8887 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC582538  Cirsium remotifolium var. rivulare Joseph P. Tracy 1934-7-6 13659 Humboldt Kneeland Prairie 762 Comment
  HSC89489  Cirsium vulgare P. A. Daly 1986-2-28 65 Humboldt Trinidad Head, along trail 61 Comment
  HSC91920  Cirsium vulgare E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near old road in dune area Comment
  HSC16236  Clarkia amoena J. P. Tracy 1938-6-17 15957 Humboldt Cape Mendocino, S of point of the Cape 3 Comment
  CAS-BOT-BC160970  Clarkia amoena subsp. amoena L. R. Abrams 1916-7-11 6020 Humboldt Mouth of Grizzly Creek on Van [Duzon] Duzen River - Redwood forest Comment
  RSA108238  Clarkia amoena subsp. huntiana Harlan Lewis, M. Lewis 1947-6-12 416 Humboldt Highway 36, 0.1 mile west of Humboldt - Trinity County line Comment
  HSC35011  Clarkia davyi Thomas W. Nelson 1974-9-15 1715 Humboldt W of Fairhaven, Samoa Peninsula Comment
  UC160994  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1911-7-5 3307 Humboldt near mouth Willow Creek (tributary of Trinity River); Northern Coast Ranges 182 Comment
  CAS-BOT-BC164822  Clarkia rhomboidea Doris K. Kildale 1925-6-21 723 Humboldt Briceland Bridge 1/2 mile west of Garberville 114 Comment
  HSC100576  Clarkia rhomboidea Carl C. Marshall Jun 1886 293 Humboldt Pine Creek. Comment
  UC275327  Claytonia exigua subsp. glauca Joseph P. Tracy 1923-4-15 6188 Humboldt Redwood Creek;at Berry's Redwood Creek; Northern Coast Ranges 274 Comment
  HSC89475  Claytonia perfoliata subsp. mexicana P. A. Daly 1986-3-12 90 Humboldt Trinidad Head, along trail 61 Comment
  JEPS43376  Claytonia perfoliata subsp. mexicana Lincoln Constance 1934-5-26 681 Humboldt North Dyerville Flat grove South Fork Eel River, Bull Creek (near Founders' Tree) 48 Comment
  UC673001  Claytonia perfoliata subsp. mexicana Joseph P. Tracy 1937-6-27 15380 Humboldt w of mouth of South Fork of Trinity River (Four-Mile Creek); Four-Mile Creek 670 Comment
  HSC104454  Claytonia rubra subsp. rubra Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 6 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC39529  Claytonia saxosa Thomas W. Nelson 1976-6-14 2708 Humboldt S of Lassic Peak 1524 Comment
  HSC99422  Claytonia sibirica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 71 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-BC443903  Claytonia sibirica A. A. Heller 1937-6-10 16274 Humboldt At Bishop Pine Lodge, 3 miles north of Trinidad on U. S. Highway #101. Comment
  HSC17723  Claytonia sibirica D. E. Anderson 1962-3-31 1956 Humboldt Coastal area of Prairie Creek State Park Comment
  SEINET11933917  Claytonia sibirica F. H. Utech 1986-1 86 -417 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  HSC62682  Claytonia washingtoniana Michelle Stevens 1979-4-21 53 Humboldt Ponds across from Clam Beach 0 Comment
  HSC15444  Clintonia andrewsiana D. E. Anderson 1965-11-1 4167 Humboldt 3 mi. S of Kneeland School Comment
  HSC15447  Clintonia andrewsiana D. E. Anderson 1963-5-25 2478 Humboldt 4 mi. N of Capetown Comment
  SEINET12050373  Clintonia andrewsiana F. H. Utech 1988-1 88 -295 Humboldt 1.5 mi N of Orick on US 101 & 0.5 mi SE on Bald Hills Rd enroute to Schoolhouse Peak 400 Comment
  SEINET3991733  Clintonia andrewsiana Unknown 1914-5-17 Humboldt Freshwater Creek 305 Comment
  SEINET201027  Cnicus benedictus Harold E. Parks, Joseph P Tracy 1942-7-2 11580 Humboldt Dinsmore's 762 Comment
  UCR139132  Coincya monensis Jim Belsher 1997-2-13 01 Humboldt Lot ESE of the Manila Community Services District sewage pump station 6 Comment
  HSC56411  Collinsia greenei Griswold, Butler 1979-7-11 7045 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC20603  Collinsia linearis H. E. Parks 1934-6-14 4789 Humboldt Horse Mtn. 1433 Comment
  RSA60814  Collinsia linearis Frank W. Gould 1939-5-30 831 Humboldt Southwestern side of Horse Mountain. 762 Comment
  UC1196843  Collinsia linearis Joseph P. Tracy 1913-7-20 4370 Humboldt near summit of ridge between Redwood Creek and Willow Creek (Northern Coast Ranges); Northern Coast Ranges 1066 Comment
  UC1196763  Collinsia rattanii Joseph P. Tracy 1908-6 2704 Humboldt opposite Buck Mountain (Northern Coast Ranges, Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 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
  JEPS26358  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1932-5-10 9932 Humboldt Bear River Ridge; North Coast Ranges; Bear River Ridge 609 Comment
  HSC44554  Collinsia torreyi Brad Klipfel 1973-7-15 173 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC146169  Collomia grandiflora Joseph P. Tracy 1908-6 2872 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  UC906687  Collomia grandiflora Joseph P. Tracy 1944-7-3 17485 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1197853  Collomia grandiflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 9066 Humboldt openings in forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC615026  Collomia grandiflora Beryl O. Schreiber 1934-6-6 1143 Humboldt Gray's Resort Redwood Creek (brushy slope) Comment
  HSC16925  Collomia heterophylla D. E. Anderson 1961-9-30 1854 Humboldt Divide Lake. 915 Comment
  HSC70375  Collomia heterophylla M. A. Baker 1980-6-7 1780 Humboldt Near Brush Mtn. 287 Comment
  HSC70922  Collomia heterophylla R. York 1980-5-18 571 Humboldt Near Black Mtn. 390 Comment
  HSC45828  Collomia heterophylla J. P. Smith, J. O. Sawyer 1973-5-12 6672 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  POM270917  Collomia heterophylla S. K. Harris 1942-6-12 1386 Humboldt Fickle Hill Road to Boynton Prairie, SN 2 E. 600 Comment
  SEINET6969874  Collomia heterophylla Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  HSC102099  Collomia tracyi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1002 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC21475  Conium maculatum F. Morrel 1949-5-14 24 Humboldt Weitchpec Comment
  HSC38916  Conium maculatum J. P. Smith 1973-5-26 6794 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA0049662  Coptis laciniata Dean Wm. Taylor 2011-5-4 21115 Humboldt Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junciton with Highway 36 734 Comment
  UC14973  Corallorhiza mertensiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5621 Humboldt Bald Mt. North Coast Ranges Comment
  OBI9572  Cordylanthus tenuis subsp. viscidus Carl B. Wolf 1937-8-13 9225 Humboldt North Coast Range, 8 mi E of Hoopa Valley on new road towards Trinity summit Comment
  UC582562  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1924-7-20 6735 Humboldt on road between Willow Creek and Three Creeks; Koby Ranch 609 Comment
  CAS-BOT-BC212015  Cornus nuttallii Doris K. Kildale 1928-5-19 5152 Humboldt Chalk Mountain Comment
  HSC95877  Cornus nuttallii Will Ferrand 2002-4-27 30 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  JEPS50171  Cornus nuttallii Lincoln Constance 1934-6-2 789 Humboldt ca. 1/2 mi. w. of its mouth Bull Creek; Bull Creek Region, S. Fork Eel R. Comment
  RSA167408  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity River Valley, at Willow Creek. Comment
  UCSB24633  Cornus nuttallii Jensen, Karen 1965-4-15 Humboldt 1 km. west of Hwy. 101 by Miranda turnoff 91 Comment
  HSC99428  Cornus sericea subsp. sericea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 77 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1196906  Cornus sericea subsp. sericea Joseph P. Tracy 1900-9-10 967 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC210542  Cornus sessilis Carl B. Wolf 1941-2-28 9971 Humboldt Junction of Willow Creek & its e. fork 457 Comment
  HSC70754  Cornus sessilis R. York 1980-5-17 529 Humboldt Near Le Perron Peak. 415 Comment
  RSA309624  Cornus sessilis W. Wisura 1983-9-2 3929 Humboldt 6 mi W of Willow Creek, at East Fork campground, along Hwy 299. Comment
  UC1197937  Corylus californica Joseph P. Tracy 1946-8-25 17640 Humboldt Table Bluff, foot of N slope along Hookton Road 9 Comment
  UC144109  Corylus californica J. P. Tracy 1909-7-18 3015 Humboldt Eureka Comment
  UC667997  Corylus californica Joseph P. Tracy 1938-7-6 16027 Humboldt Big Lagoon Prairie 15 Comment
  UC667999  Corylus californica Joseph P. Tracy 1935-3-8 13730 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC65072  Corylus cornuta subsp. californica J. P. Smith, Steve Selva 1970-6-14 3856 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC95923  Corylus cornuta subsp. californica Will Ferrand 2001-6-17 14 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  HSC98546  Corylus cornuta var. californica Cara Witte 2007-5-26 652 Humboldt 3/4 mile south of Titlow Hill. 1422 Comment
  RSA0076088  Cotoneaster franchetii Robert F. Thorne 1974-7-29 45072 Humboldt Samoa Dunes. Comment
  UCD130911  Cotula coronopifolia Malcolm A. Nobs; S. Galen Smith 1949-8-3 1163 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  HSC79466  Crassula connata Kenneth Clark 1981-4-5 1226 Humboldt 1/4 E of Dead Man's Gulch 122 Comment
  UCR275124  Crataegus monogyna Charity A. Hartshorn 2016-4-24 10 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  CDA4431  Crepis capillaris T. C. Fuller 1958-6-17 597 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  RSA43684  Crepis setosa H. M. Pollard 1948-8-8 s.n. Humboldt Roadside between Orleans and Camp Creek Comment
  UC176812  Crocidium multicaule Joseph P. Tracy 1913-5-4 4048 Humboldt Kneeland Prairie North Coast Ranges, Kneeland Prairie 762 Comment
  POM174073  Cryptantha flaccida Joseph P. Tracy 1918-7-6 5047 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  SDSU19212  Cryptantha leiocarpa Michael G. Simpson, John Sawyer and Michael Mayer 2008-5-30 3032 Humboldt Lanphere Dunes, ca. 3.0 miles north-northeast of Manila. 2 Comment
  UC54746  Cryptantha leiocarpa Harley P. Chandler May 1901 1144 Humboldt Samoa North Coast Ranges, Humboldt Bay 3 Comment
  POM126498  Cryptantha leiocarpa Joseph P. Tracy 1906-5-13 2457 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay. Comment
Read comments
Jan 23 2011
  UC502918  Cupressus lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 762 Comment
  CAS-BOT-BC224391  Cuscuta californica Joseph P. Tracy 1949-8-4 18408 Humboldt Trinity Summit. Mud Springs 1341 Comment
  SEINET905773  Cuscuta campestris Harry B. Tucker 1946-1 s.n. Humboldt Bayside, field, local in small area 6 Comment
  NY1043284  Cuscuta salina C. C. Harris 1941-8-28 1175 Humboldt Humboldt Bay near Table Bluffs Comment
  UC35080  Cuscuta salina var. major Chesnut and Drew Aug 1888 Humboldt Eureka Comment
  HSC3640  Cynoglossum grande Elrid H. Spinas 1948-5-15 3 Humboldt Horse Mtn. Comment
  UC1222261  Cynoglossum grande Joseph P. Tracy 1950-5-7 18647 Humboldt ca. 5 mi. n. Bridgeville (on rd. to S. Yager Valley) Comment
  UC1239626  Cynoglossum grande Joseph P. Tracy 1923-3-17 6166 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  UCD39894  Cynosurus cristatus Ray Evans 1956-7-19 s.n. Humboldt 4.5 miles northwest of Petrolia. Comment
  UC526896  Cynosurus echinatus Joseph P. Tracy 1933-6-11 12542 Humboldt near Miranda; Northern Coast Ranges, near Miranda 152 Comment
  SEINET11676331  Cynosurus echinatus L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  CAS-BOT-BC114699  Cyperus bipartitus Henry M. Pollard 1946-8-22 s.n. Humboldt Wallathrone Riffle, Klamath River. Orleans Region. Comment
  HSC97544  Cyperus eragrostis Ivy Watson 2008-10-5 40 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  HSC96372  Cyperus parishii Gordon Leppig 2004-9-6 2197 Humboldt E bank of Trinity River, across river from the Loncar Summer Estate, 3.5 km N of Willow Creek 120 Comment
  POM160839  Cyperus squarrosus Joseph P. Tracy 1920-8-15 5362 Humboldt Klamath River at Bluff Creek. 152 Comment
  UC213327  Cyperus squarrosus Joseph P. Tracy 1920-8-15 5362 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  UC1103634  Cyperus strigosus Joseph P. Tracy 1920-8-15 5377 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  HSC74128  Cystopteris fragilis R. York 1980-5-23 621 Humboldt Near Buck Mtn. 1524 Comment
  UCR123955  Cystopteris fragilis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6970 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  HSC9531  Dactylis glomerata W. F. Nickel 1965-3-17 Humboldt Humboldt State University campus Comment
  SBBG34665  Dactylis glomerata T. L. Secrest 1948-6-29 Humboldt southern Humboldt County [no specific locality] Comment
  UC526684  Danthonia californica var. americana Joseph P. Tracy 1930-6-21 8772 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC526687  Danthonia californica var. americana Joseph P. Tracy 1932-7-10 10392 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UCD61361  Danthonia unispicata R. Tofsrud 1948-9-3 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  RSA20722  Darlingtonia californica Carl B. Wolf 1937-9-11 9318 Humboldt Redwood Hwy 3 miles north of Orick (Davison's Ranch on Prairie Creek) 61 Comment
  CAS-BOT-BC420363  Darmera peltata Doris K. Kildale 1926-3-28 1679 Humboldt Redwood Creek at Berry's 289 Comment
  UC505103  Datisca glomerata Joseph P. Tracy 1932-9-18 10805 Humboldt Blue Slide on Van Duzen River Blue Slide; Northern Coast Ranges, Van Duzen River, Blue Slide 91 Comment
  RSA421918  Datura stramonium M. B. Dunkle 1936-8-22 4855 Humboldt Williams Grove, Eel River. 213 Comment
  UC1223154  Delairea odorata Joseph P. Tracy 1942-1-25 17054 Humboldt near Ferndale; along Russ Creek Comment
  HSC94008  Delairea odorata Gordon Leppig 2000-2-15 1284 Humboldt School Rd. 1/2 mi. W of Central Ave. 30 Comment
  UC249648  Delphinium decorum subsp. tracyi Joseph P. Tracy 1922-6-5 6082 Humboldt slopes at head of creek Northern Coast Ranges, South Yager Creek 762 Comment
  HSC25010  Delphinium nudicaule G. N. Bos 1965-5-15 270 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  UC249530  Delphinium nudicaule Joseph P. Tracy 1922-4-30 6012 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC100615  Delphinium nudicaule Carl C. Marshall May 1887 412 Humboldt Lawrence Creek. Comment
  HSC27071  Delphinium nudicaule Clifton Raymond Chesbrough 1971-4-11 8 Humboldt 1.0 mi. E of Salyer on Hwy. 299, along Trinity River Comment
  HSC48947  Delphinium nudicaule M. A. Baker 1979-5-15 733 Humboldt Along old bed of Bluff Creek Comment
  HSC74385  Delphinium nuttallianum M. A. Baker 1980-6-28 2471 Humboldt Near Mad River Buttes 1445 Comment
  CDA24232  Delphinium nuttallianum K. Eickhoff, C. M. Witte 2005-6-15 12 Humboldt Northwestern California; 14.1 miles south of Highway 299 on NFI, 0.25 mile northeast of Grouse Mountain. Comment
  UC1334518  Delphinium trolliifolium G. A. L. Mehlquist and J. A. Jenkins 1940-5-29 9 Humboldt 1 1/2 mi n Kneeland Comment
  RSA32276  Delphinium trolliifolium H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale Comment
  UC1222576  Delphinium trolliifolium Joseph P. Tracy 1950-6-8 18721 Humboldt ridge summit near Mountain Glen Ranch (7 mi s of Ferndale); Bear River Ridge Comment
  UCD61369  Deschampsia cespitosa A. H. Murphy 1951-5-29 48 Humboldt About 1 mile northeast of Ocean House, along County Road, Cape Mendocino Area. Comment
  CAS-BOT-BC201777  Deschampsia elongata Joseph P. Tracy 1932-7-14 10552 Humboldt At Corral Prairie 1524 Comment
  HSC40402  Deschampsia elongata Thomas W. Nelson 1976-7-9 3006 Humboldt S of Mtn. Lassic, (Signal Peak). 1707 Comment
  HSC58666  Deschampsia elongata G. L. Clifton, Griswold 1979-8-1 12080 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC74436  Deschampsia elongata Gail Newton 1980-8-10 2067 Humboldt Near Blake Mtn. 1707 Comment
  UC1541537  Deschampsia elongata Harold E. Parks September 1928 172 Humboldt Big Lagoon Comment
  CAS-BOT-BC201767  Deschampsia elongata Catherine Best 1990-6-28 1395 Humboldt In the Forest Service Camp near Lassic [Lassics] Comment
  HSC8603  Deschampsia elongata D. W. C. 1956-5-29 13 Humboldt Mattole- Rio Del -Atwell Creek Comment
  JEPS9736  Dicentra formosa Joseph P. Tracy 1930-8-17 9164 Humboldt Big Lagoon; Northern Coast Region 15 Comment
  UC1196302  Dicentra formosa Joseph P. Tracy 1947-8-24 17914 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  CAS-BOT-BC402409  Dicentra formosa subsp. formosa Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC402539  Dicentra pauciflora Joseph P. Tracy 1933-7-11 12691 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  CAS-BOT-BC208955  Dichanthelium oligosanthes subsp. scribnerianum Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region. Comment
  UC421853  Dichelostemma X venustum W. L. Pedrick Jun 1907 Humboldt Ferndale Comment
  UC1222675  Dichelostemma capitatum Joseph P. Tracy 1950-6-25 18877 Humboldt nw slope Buck Mountain (on Burr Valley Road) 914 Comment
  UC146201  Dichelostemma capitatum Joseph P. Tracy 1908-6 2773 Humboldt opposite Buck Mountain; Northen Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC86307  Dichelostemma capitatum subsp. capitatum K. Berg, B. Bonning 1983-5-21 493 Humboldt 0.5 mi. up Titlow Hill Rd. from Berry Summit 854 Comment
  SEINET200696  Dichelostemma ida-maia J. P. Tracy 1901-6-23 1184 Humboldt Immediate vicinity of Eureka near Ryans Slough Hill 0 Comment
  SEINET3885611  Dichelostemma ida-maia Thomas Nelson, Jane P. Nelson; James Nelson 1975-6-21 1947 Humboldt Beside Highway 36 ca. 5 mi. east of Bridgeville.; 0 Comment
  UC635734  Dichelostemma ida-maia H. L. Mason 1928-7-20 4909 Humboldt South Fork Mountain Comment
  HSC36566  Dichelostemma ida-maia Thomas W. Nelson, B. Reinhardt 1975-7-30 2099 Humboldt Along Whiting Ridge Comment
  UC535761  Dichelostemma ida-maia Eleanor Armstrong 1934-5-17 Humboldt n of Redway Comment
  UC1225863  Dichelostemma multiflorum Joseph P. Tracy 1943-5-9 17422 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC15034  Dichelostemma multiflorum P. E. Goddard 1901-7 41 Humboldt Hupa Comment
  CAS-BOT-BC500982  Dichelostemma multiflorum Harley P. Chandler 1901-6-1 1310 Humboldt Hupa Indian Reservation 152 Comment
  HSC23713  Digitalis purpurea Tim Baroni 1971-6-25 61 Humboldt 8 mi. E of Petrolia Comment
  SEINET8354549  Diplacus aurantiacus Unknown 1960-6-9 935 Humboldt 2 mi. s. Miranda; U.S. Hwy 101. 91 Comment
  JEPS61838  Disporum W. L. Jepson 1921-8-11 8413 Humboldt Humboldt Coast, Big Lagoon Big Lagoon; Humboldt Coast, Big Lagoon Comment
  SEINET4170350  Disporum hookeri Bassett Maguire, Ruth Maguire , C. B. Maguire 1934-6-8 15087 Humboldt Bolling Grove State Park Comment
  UC535769  Disporum hookeri Eleanor Armstrong 1934-5-27 Humboldt Richardson Grove Comment
  POM277209  Disporum hookeri var. hookeri Lyman Benson 1929-7-12 1788 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  POM118601  Disporum smithii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC38072  Distichlis spicata Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6202 Humboldt near Ferndale; ; Ferndale, Humboldt Co. Comment
  UC1198620  Dodecatheon hendersonii Joseph P. Tracy 1922-5-14 6046 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC17866  Dodecatheon hendersonii Francis Winter 1960-4-24 Humboldt Pine Ridge Summit, 3 mi. NE of Redwood Creek Ranch 854 Comment
  UC1001280  Downingia elegans W. L. Jepson 1927-7-3 12363 Humboldt Miranda South Fork Eel River 228 Comment
  CAS-BOT-BC401535  Drosera rotundifolia Carl B. Wolf 1927-8-22 778 Humboldt Big Lagoon Comment
  UC180234  Drosera rotundifolia Joseph P. Tracy 1914-9-6 4601 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  RSA0011675  Drosera rotundifolia Norman Dennis 1965-6-30 140 Humboldt Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  RSA0011676  Drosera rotundifolia C. B. Wolf 1937-8-10 2901 Humboldt Big Lagoon, bog at state park. 6 Comment
  JEPS47226  Drymocallis glandulosa var. glandulosa Lincoln Constance 1934-6-15 878 Humboldt summit of Grasshopper Peak South Fork Eel River, Bull Creek Region (Bull Creek Region) 975 Comment
  CAS-BOT-BC70872  Dryopteris arguta Doris K. Kildale 1928-12-30 6884 Humboldt Phillipsville Comment
  UC62809  Dryopteris expansa Marshall A. Howe 1896-5-30 Humboldt Eureka Comment
  HSC91599  Dryopteris expansa E. Mackey 1987-8-29 Humboldt Patrick's Pont State Park, by bridge over Penn Creek Comment
  HSC26296  Dudleya farinosa T. O. Osborne 1970-9-16 39 Humboldt Blank Rock, 1/4 mi. W Trinidad Head Comment
  HSC97541  Dysphania ambrosioides Ivy Watson 2008-9-17 15 Humboldt Mad River Park on W End Rd., near pumping station 8 Comment
  UC535737  Echinochloa crus-galli Eleanor Armstrong 1151 Humboldt Richardson Grove Comment
  CAS-BOT-BC113646  Eleocharis acicularis LeRoy Abrams 1916-7-18 6095 Humboldt Lagoon back of dunes. Arcata to Trinidad. Comment
  CHSC68427  Eleocharis macrostachya L. P. Janeway 1983-9-24 701 Humboldt 10-30 ft from water line of Big Lagoon, near southwest corner of the county campground. 3 Comment
  JEPS64131  Eleocharis macrostachya W. L. Jepson 1921-8-7 9328 Humboldt Stone Lagoon Humboldt Coast Comment
  UC666873  Eleocharis macrostachya Joseph P. Tracy 1934-8-14 13570 Humboldt Alton 30 Comment
  RSA246877  Eleocharis palustris Robert F. Thorne, Percy C. Everett 1965-8-9 35338 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  CAS-BOT-BC113205  Eleocharis parishii Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  JEPS19333  Eleocharis rostellata Joseph P. Tracy 1932-7-14 10559 Humboldt Corral PRairie, Trinity Summit 1584 Comment
  UC1541606  Elymus X hansenii Harold E. Parks and Joseph P. Tracy 1934-6-27 11049 Humboldt Horse Mountain 1280 Comment
  CDA31707  Elymus glaucus Russell Graham Aug 1960 Humboldt Near Weitchpec 0 Comment
  HSC39907  Elymus glaucus J. P. Smith, Steve Selva 1970-6-30 4106 Humboldt Comment
  JEPS71189  Elymus glaucus subsp. glaucus W. L. Jepson 1936-8-8 17859 Humboldt Richardson Grove South Fork Eel River Comment
  HSC10936  Elymus mollis subsp. mollis J. W. Johnson 1962-4-29 1297 Humboldt W.M Lanphere Farm, Samoa Peninsula, Arcata. Comment
  UC526785  Elymus multisetus Joseph P. Tracy 1933-7-25 12893 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  RSA10018  Elymus repens Joseph P. Tracy 1925-9-13 7267 Humboldt Mouth of Eel River 6 Comment
  UC1040574  Elymus trachycaulus L. T. Burcham 1956-7-19 342 Humboldt Northeast Capetown; along roadside and on adjacent sheep range. 365 Comment
  SACT001159  Elymus vancouverensis Malcolm Nobs, S. Smith 1949-8-3 Humboldt Salt marshes bordering Humboldt Bay, 2 miles north of Eureka. Comment
  JEPS31518  Epilobium brachycarpum Joseph P. Tracy 1933-8-6 12942 Humboldt French Camp Ridge 1066 Comment
  UC205233  Epilobium canum subsp. latifolium Joseph P. Tracy 1919-9-23 5288 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC48320  Epilobium ciliatum subsp. ciliatum Brad Klipfel 1973-8-3 311 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC146137  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1909-7-4 3004 Humboldt Immediate vicinity of Eureka 0 Comment
  POM271496  Epilobium ciliatum subsp. ciliatum Lyman Benson 1929-7-14 1804 Humboldt S. Fork Eel River, Weott Ranger Station Comment
  UC726596  Epilobium ciliatum subsp. watsonii A. A. Heller 1923-7-9 13785 Humboldt between Eureka and Fortuna Comment
  SEINET9067301 Image available Epilobium ciliatum subsp. watsonii H. E. Parks, S. T. Parks 1937-1 24050 Humboldt Spruce Cove, Trinidad 64 Comment
  UC146139  Epilobium ciliatum subsp. watsonii Joseph P. Tracy 1907-7-20 2591 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach, along ditch) Comment
  HSC98949  Epilobium densiflorum Cara Witte 2008-7-28 946 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  HSC55207  Epilobium glaberrimum Walter Overton 1979-8-1 12326 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC32548  Epilobium hallianum Thomas W. Nelson 1973-7-10 1031 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  HSC55074  Epilobium hallianum G. L. Clifton, Griswold 1979-7-31 11675 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC169920  Epilobium minutum Harley P. Chandler May, 1901 1125 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UCR45444  Epilobium minutum N. Meiselman, M. Bransom, D. Brown, Ron Hildebrandt 1986-4-19 28 Humboldt North Coast Range, Horse Mountain, 0.5 mi. down Titlow Road from Ski Area 1372 Comment
  UC562496  Epilobium septentrionale Joseph P. Tracy 1933-9-9 13075 Humboldt vicinity of Garberville (along S. Fork Eel River); S. Fork Eel River 121 Comment
  UC204002  Epilobium torreyi Joseph P. Tracy 1918-7-6 5050 Humboldt near Humboldt-Mendocino County Line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  RSA259564  Epipactis gigantea D. E. Anderson, J. P. Smith 1971-6-28 J- 1224 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  SEINET10296819  Epipactis gigantea Unknown 1949-7-7 18335 Humboldt CALIFORNIA PLANTS -- HUMBOLDT COUNTY BLUE SLIDE, on VAN DUZEN RIVER Comment
  UC845344  Epipactis gigantea Ira L. Wiggins 1930-7-8 4677 Humboldt cliffs along river near Scotia; Eel River Comment
  UC906713  Equisetum laevigatum Harold E. Parks and Joseph P. Tracy 1942-5-16 11563 Humboldt vicinity of Garberville 152 Comment
  HSC36227  Equisetum telmateia subsp. braunii John Rehling 1975-4-21 52 Humboldt Along Jolly Giant Creek behind HSU campus. Comment
  HSC70639  Equisetum telmateia subsp. braunii R. York 1980-5-18 594 Humboldt Near Black Mtn 792 Comment
  UC1239787  Equisetum telmateia subsp. braunii Joseph P. Tracy 1909-3-7 2945 Humboldt immediate vicinity Eureka 0 Comment
  MACF015290  Equisetum telmateia subsp. braunii Barbara Joe 1958-8-24 27239 Humboldt Garbervills Comment
  POM118344  Equisetum telmateia var. braunii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC5491  Erechtites glomeratus H. E. Parks, S. T. Parks Jul 1937 24033 Humboldt Trinidad; Spruce Cove 64 Comment
  POM356838  Erechtites minimus B. C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  HSC74435  Erigeron aliceae Gail Newton 1980-8-10 2065 Humboldt Near Blake Mountain 1707 Comment
  UC165069  Erigeron foliosus var. confinis Joseph P. Tracy 1911-7-6 3353 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek 762 Comment
  CAS-BOT-BC300679  Erigeron foliosus var. mendocinus Carl Purdy 1938-1-1 s.n. Humboldt Van Duzen River Comment
  POM289039  Erigeron glaucus Lyman Benson 1929-7-19 1850 Humboldt Mouth of Matole River. Comment
  RSA254794  Erigeron glaucus Thomas W. Nelson 1971-11-11 596 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  POM56121  Erigeron inornatus var. biolettii Joseph P. Tracy 1918-7-6 5052 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC165064  Erigeron inornatus var. inornatus Joseph P. Tracy 1908-7-1 2894 Humboldt ridge between Van Duzen River and Mad River (near low gap, Humboldt and Trinity Counties); Trinity County 914 Comment
  HSC58174  Erigeron klamathensis G. L. Clifton, Griswold 1979-8-2 12255 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC95874  Erigeron maniopotamicus Thomas W. Nelson, Sydney Carothers 2004-6-18 9253 Humboldt Board Camp Mountain Road off Forest Service Road 49N38, 1 mile from junction with Forest Service Road 1. 1482 Comment
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Jun 21 2014
  HSC104433  Erigeron maniopotamicus Bianca Hayashi 2013-6-11 Humboldt Twin Lakes area, north of Board Camp Mountain 1280 Comment
  CHSC324  Erigeron philadelphicus A. Small 1954-6-7 Humboldt 1/2 mi. s. of Capetown. 60 Comment
  UCSB15446  Erigeron philadelphicus Breedlove, Dennis 1961-7-3 Humboldt Along Eel River, 7.4 miles north of Phillipsville 243 Comment
  HSC5527  Erigeron philadelphicus D. E. Anderson 1963-5-25 2488 Humboldt 1 mi. N of Capetown Comment
  HSC100375  Erigeron robustior D. Decker 2010-7-28 Humboldt Buck Project, Dinsmore. 976 Comment
  HSC48395  Eriodictyon californicum Brad Klipfel 1973-6-10 149 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC906676  Eriodictyon californicum Joseph P. Tracy 1947-7-5 17795 Humboldt near Mud Springs Trinity Summit (Trinity Summit); , near Mud Springs 1371 Comment
  HSC76558  Eriogonum compositum Teresa Prendusi 1981-7-24 516 Humboldt Near Whiteys Peak 1634 Comment
  HSC76606  Eriogonum compositum Teresa Prendusi 1981-7-21 280 Humboldt Near Whiteys Peak 1646 Comment
  HSC99535  Eriogonum compositum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 200 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1829 Comment
  CAS-BOT-BC248809  Eriogonum compositum var. compositum Joseph P. Tracy 1932-7-12 10460 Humboldt Trinity Summit, head of Brett Hole 1828 Comment
  SBBG1531  Eriogonum latifolium H. and M. Dearing 1939-5-25 3438 c Humboldt near Samoa Comment
  UCD100327  Eriogonum latifolium Linda M. Barker 1976-6-22 1615 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA766119  Eriogonum latifolium Arthur Menzies 1961-9-3 s.n. Humboldt Samon Comment
  UC146156  Eriogonum latifolium J. P. Tracy 1904-7-4 2115 Humboldt vicinity Eureka (bluff at Bucksport); Bucksport 0 Comment
  HSC66867  Eriogonum lobbii M. A. Baker 1980-7-24 3202 Humboldt Near Orleans Mtn. 1625 Comment
  UC14097  Eriogonum luteolum var. luteolum Chesnut and Drew 1888-7-23 Humboldt Hyampon Comment
  CAS-BOT-BC259538  Eriogonum luteolum var. luteolum Joseph P. Tracy 1938-8-14 16120 Humboldt South Fork of Trinity River: mountain slopes west of its mouth 304 Comment
  CDA30223  Eriogonum nudum M. K. Beyers, I. Shepardson 2009-9-13 259 Humboldt Roadside, in a shallow turn-out along State Route 254 (Avenue of the Giants). 0 Comment
  UC146155  Eriogonum nudum var. nudum Joseph P. Tracy 1908-6 2811 Humboldt opposite Buck Mountain (Valley of Van Duzen River); North Coast Ranges, Valley of Van Duzen River 304 Comment
  CAS-BOT-BC261725  Eriogonum nudum var. oblongifolium Doris K. Kildale 1926-7-22 2422 Humboldt Metropolitan, bluffs near Canyon Park Comment
  SEINET11938136  Eriogonum nudum var. oblongifolium H. P. Chandler 1901-1 1442 Humboldt Klamath River 305 Comment
  UC205641  Eriogonum roseum Joseph P. Tracy 1919-9-13 5191 Humboldt Trinity River near Willow Creek - Northern Coast Ranges, Trinity River Comment
  HSC95795  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along FS Rd. 1 at S end of Whiting Ridge, 0.5 mi. WNW of High Salt Ground, 9.3 mi. W of Hyampom 1296 Comment
  UC1198157  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1932-7-12 10459 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  HSC99135  Eriogonum umbellatum var. nelsoniorum Cara Witte 2008-7-10 854 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  HSC55169  Eriogonum umbellatum var. stellatum Gilbert Muth 1979-8-1 12163 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC97920  Eriogonum umbellatum var. umbellatum Cara Witte 2007-6-14 270 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  JEPS56129  Eriogonum vimineum W. L. Jepson 1932-7-25 16395 Humboldt Old Camp Grant Eel River, Old Camp Grant Comment
  HSC49961  Eriophyllum lanatum Maralyn O'Meara 1974-7-11 546 Humboldt Kneeland, Barry Ridge Comment
  HSC60053  Eriophyllum lanatum M. A. Baker 1978-5-6 501 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC53823  Eriophyllum lanatum var. achilleoides Griswold, Butler 1979-7-10 6269 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  SEINET4208670  Eriophyllum lanatum var. achilleoides Thomas Nelson, Jane Nelson; James Nelson 1975-7-15 2028 Humboldt Growing on serpentine outcrop at French Camp, Bald Hills.; 0 Comment
  UC1223133  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1950-5-24 18696 Humboldt Cummings Post Office Comment
  UC176464  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1913-7-25 4338 Humboldt Dinsmore Ranch opposite Buck Mountain; Northern Coast Ranges, Van Dusen River Valley 762 Comment
  UC34551  Eriophyllum lanatum var. achilleoides Chesnut and Drew 1888-7-12 Humboldt Jarnigan's Comment
  CAS-BOT-BC301183  Eriophyllum lanatum var. arachnoideum Frank W. Peirson 1926-7-12 7029 Humboldt West slope Coast Range back of Orick Comment
  UC1198963  Erodium botrys Joseph P. Tracy 1913-6-27 4353 Humboldt McClellan Mt., on the Sweasey place Northern Coast Ranges 609 Comment
  UC180182  Erodium botrys Joseph P. Tracy 1914-5-14 4462 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  HSC89896  Erodium cicutarium Leonel Arguello 1989-6-2 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata, end of Fernstrom-Root trail Comment
  POM48069  Eryngium aristulatum var. aristulatum J. B. Feudge 1923-7-27 55 Humboldt Rohnerville 15 Comment
  HSC76222  Erysimum capitatum var. capitatum Walter Overton, Marvin Butler 1979-7-24 9764 Humboldt Near Black Rock, close to the town of Willow Creek 1554 Comment
  HSC28486  Erysimum menziesii J. D. Ackerman 1973-3-27 54 Humboldt 1.5 mi. S of Samoa, alongside Hwy. Comment
  HSC38519  Erythronium californicum D. E. Anderson, J. P. Smith 1971-6-18 - 1081 Humboldt Horse Mtn. Comment
  HSC15491  Erythronium californicum Paul Shields May 1955 Humboldt 12 mi. W of Willow Creek Comment
  HSC96235  Erythronium californicum April A. Allard, Gregory D. O'Connell 2005-6-10 7 Humboldt 4.5 mi. S of Hwy. 299 on NF1 at junction below radio tower 1421 Comment
  JEPS501  Erythronium grandiflorum Joseph P. Tracy 1930-7-18 9037 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC15499  Erythronium oregonum subsp. leucandrum D. E. Anderson 1965-4-24 3548 Humboldt 3 mi. E of Redwood Creek bridge along Hwy. 299, old routing Comment
  HSC15503  Erythronium revolutum G. N. Bos 1965-5-2 245 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  JEPS61873  Erythronium revolutum Joseph P. Tracy 1918-5-4 Humboldt Eureka Comment
  RSA367654  Erythronium revolutum Thomas W. Nelson 1976-4-3 2283 Humboldt Hwy 36 at east end of Swains Flat. Comment
  HSC16768  Eschscholzia californica William J. Ferlatte 1963-4-28 24 Humboldt Near 12th and B St., Arcata Comment
  HSC23676  Eschscholzia californica Tim Baroni 1971-7-6 111 Humboldt 1 mi. S of Ferndale on the Mattole Rd. Comment
  UC146086  Eschscholzia californica Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC26453  Eschscholzia californica T. O. Osborne 1970-7-18 3 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  JEPS51814  Eschscholzia californica W. L. Jepson 1932-8-8 16487 Humboldt Grasshopper Peak 914 Comment
  UC503023  Eschscholzia californica Joseph P. Tracy 1932-6-14 10140 Humboldt hillsides w mouth of S. Fork Trinity River; Northern Coast Ranges, Trinity River Valley 609 Comment
  HSC58379  Eucephalus ledophyllus Terry Griswold 1979-7-25 10759 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1814 Comment
  UC1199299  Eucephalus tomentellus Joseph P. Tracy 1932-7-12 10437 Humboldt Corral Prairie, (open places at) Trinity Summit 1584 Comment
  HSC39172  Euchiton gymnocephalus D. E. Anderson, J. P. Smith 1971-6-28 - 1230 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC1196541  Euchiton involucratus Joseph P. Tracy 1948-9-26 18232 Humboldt 6 mi se Arcata (at s end of Fickle Hill); Fickle Hill 609 Comment
  JEPS20476  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  JEPS34035  Euchiton sphaericus W. L. Jepson 1936-8-15 17898 Humboldt 2 mi e Carlotta Comment
  UC1223112  Euchiton sphaericus Joseph P. Tracy 1949-10-16 18591 Humboldt near Grizzly Creek; Van Duzen River 91 Comment
  POM358934  Euchiton sphaericus H. M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek, near Orleans Comment
  HSC100666  Eunanus kelloggii Carl C. Marshall May 1887 417 Humboldt Spruce Grove region. Comment
  HSC102563  Euonymus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1550 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC83991  Euphorbia peplus L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 223 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  CAS-BOT-BC312207  Eurybia radulina Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC36485  Eurybia radulina Thomas W. Nelson, James Nelson 1975-9-3 2195 Humboldt Above junction of Maple Creek-Kneeland Rd. Comment
  UC180190  Eurybia radulina Joseph P. Tracy 1914-9-6 4619 Humboldt Bald Mountain, between High Prairie and Snow Camp Bald Mountain 1066 Comment
  CAS-BOT-BC310679  Euthamia occidentalis Joseph P. Tracy 1927-10-8 8389 Humboldt Arcata Bottom 15 Comment
  UC1199325  Euthamia occidentalis Joseph P. Tracy 1918-9-29 5112 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges, South Fork Eel River above its mouth 60 Comment
  CAS-BOT-BC458291  Euthamia occidentalis Carl D. Duncan 1920-9-22 s.n. Humboldt Bank of Trinity River, Hoopa Valley Comment
  SEINET3244015  Euthamia occidentalis S. K. Harris, Charlotte Wilder 1938-1 879 Humboldt Bars of the Van Dusen River, above Blue Slide. Comment
  CAS-BOT-BC278180  Festuca W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  HSC40339  Festuca arundinacea Linda M. Barker 1976-6-1 1566 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC97391  Festuca californica D. E. Anderson 1965-4-24 3547 Humboldt 2 mi. E of Berry Summit along Hwy. 299 Comment
  UC1103702  Festuca californica Joseph P. Tracy 1923-6-3 6250 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC34070  Festuca californica J. P. Tracy 1901-6-23 1175 Humboldt immediate vicinity Eureka 0 Comment
  POM206180  Festuca californica var. californica Joseph P. Tracy 1901-6-23 1175 Humboldt Immediate vicinity of Eureka. 0 Comment
  CAS-BOT-BC282501  Festuca elmeri H. S. Yates 1936-6-17 5690 Humboldt South Fork Peak, lower N.W. slope of Buck Mtn. 792 Comment
  HSC9871  Festuca idahoensis R. D. Rogers 1964-5-15 17 Humboldt Rousseau Ranch Comment
  UC1103729  Festuca idahoensis Joseph P. Tracy 1926-6-6 7569 Humboldt on road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  UC70827  Festuca idahoensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5676 Humboldt Hoopa Mt. Comment
  CAS-BOT-BC278811  Festuca occidentalis Joseph P. Tracy 1930-7-16 9097 Humboldt Northern Coast Ranges. South Fork Mountain. Near McKay Camp 1676 Comment
  HSC70661  Festuca occidentalis Gail Newton 1980-7-14 1544 Humboldt Near Deadman Ridge 1097 Comment
  HSC73746  Festuca occidentalis M. A. Baker 1980-7-15 2950 Humboldt Near Whiting Ridge. 1341 Comment
  UC187115  Festuca occidentalis Joseph P. Tracy 1911-6-4 3229 Humboldt along Little River, 5 mi from the coast Northern Coast Ranges, Little River 121 Comment
  HSC37914  Festuca rubra Peter Sorensen 1976-7-14 Humboldt Humboldt Bay, Woodley Island Comment
  HSC9972  Festuca rubra H. E. Parks Jun 1935 11072 Humboldt Buck Mtn. Comment
  CAS-BOT-BC282522  Festuca subbiflora Harley P. Chandler 1901-5-1 1184 Humboldt Humboldt Bay 30 Comment
  CAS-BOT-BC278621  Festuca subulata Joseph P. Tracy 1935-7-27 14295 Humboldt Trinity Summit. Open places at McKay Prairie 1584 Comment
  HSC98623  Festuca subulata Cara Witte 2008-8-6 1006 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  UC1103708  Festuca subulata Joseph P. Tracy 1921-4-17 5429 Humboldt Alton Northern Coast Ranges 30 Comment
  UC526846  Festuca subulata Joseph P. Tracy 1934-7-18 13457 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  JEPS75445  Festuca subuliflora W. L. Jepson 1934-5-7 16710 Humboldt Buckeye Prairie, Bull Creek Comment
  SEINET200688 Image available Festuca subuliflora J. P. Tracy 1900-5-22 801 Humboldt Immediate vicinity of Eureka 0 Comment
  UC180507  Festuca subuliflora Joseph P. Tracy 1913-6-14 4126 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET10963562  Festuca subuliflora Huron H. Smith 1911-1 Smith 3915 Humboldt Comment
  SEINET11826851  Filago gallica J. P. Tracy 1948-1 18038 Humboldt halfway between Bridgeville & Blacksburg, along Larrabee Creek Comment
  RSA183617  Fragaria californica D. E. Anderson 1965-5-1 3558 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek. Comment
  HSC18623  Fragaria chiloensis J. W. Johnson 1962-4-29 1300 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  CAS-BOT-BC457926  Fragaria vesca subsp. californica Doris K. Kildale 1927-3-20 2910 Humboldt Phillipsville, south fork of Eel River Comment
  HSC59446  Frangula purshiana Kenneth Clark 1979-5-29 367 Humboldt 0.1 mi. past end of Granite Ave. 23 Comment
  JEPS44073  Fraxinus latifolia Lincoln Constance 1934-6-11 843 Humboldt n Dyerville Flat, trail along e bank of South Fork of Eel River South Fork Eel River, Bull Creek Region Comment
  RSA698197  Fraxinus latifolia J. Russell Bruff 1937-8-18 945 Humboldt Richardson Grove, bank at Eel River Comment
  HSC34506  Fritillaria affinis J. D. Ackerman 1975-5-3 440 Humboldt 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection, W of Redwood Creek Comment
  UC1197627  Fritillaria purdyi Joseph P. Tracy 1938-6-13 15918 Humboldt Grouse Mountain, at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  UC667120  Fritillaria purdyi Joseph P. Tracy 1927-5-22 8076 Humboldt Kneeland Prairie 822 Comment
  UC2029548  Fumaria capreolata Richard R. Halse 2013-3-28 8767 Humboldt Eureka, weed area by a Texaco station near 3543 Broadway St. (U.S. Highway 101) and its intersection with McCullens Ave. Comment
  HSC100645  Galium Carl C. Marshall Jun 1886 13 Humboldt Pilot Creek. Comment
  HSC70928  Galium aparine R. York 1980-5-18 579 Humboldt Near Black Mtn 792 Comment
  BLMAR595  Galium aparine Jennifer Wheeler 2010-7-28 595 Humboldt Lacks Creek, along Pine Ridge Road, common understory 975 Comment
  HSC19781  Galium aparine B. D. Rogers, William J. Ferlatte 1966-6-8 2087 Humboldt Forest Glen Campground Comment
  UC175780  Galium bifolium Joseph P. Tracy 1912-7-31 3923 Humboldt near summit Northern Coast Ranges, Buck Mountain 1676 Comment
  UC1222494  Galium californicum subsp. californicum Joseph P. Tracy 1950-6-15 18827 Humboldt 7 mi n Harris; Mail Ridge, Hubbard's Station Comment
  UC1143099  Galium divaricatum H. S. Yates 1936-6-23 5876 Humboldt 4 mi nne Cathay Peak; Dyerville Quadrangle Comment
  HSC71828  Galium grayanum var. grayanum Thomas W. Nelson, Jane P. Nelson 1980-6-27 5958 Humboldt Saddle E of Mt. Lassic 1677 Comment
  JEPS52837  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-8 3845 Humboldt along creek 100 yd s campsite (6.2 mi w of Willow Creek town); east fork Willow Creek 487 Comment
  JEPS6682  Galium muricatum Joseph P. Tracy 1934-7-22 13488 Humboldt North Yager Creek 396 Comment
  UC35332  Galium muricatum C. C. Marshall 1888-1 Humboldt Comment
  UC1196101  Galium parisiense Joseph P. Tracy 1924-8-10 6801 Humboldt on river bar near Strong's Station (10 mi e of Carlotta); Northern Coast Ranges 60 Comment
  UC213506  Galium parisiense Joseph P. Tracy 1920-7-11 5343 Humboldt near Arcata (around Humboldt Bay); Northern Coast Ranges, Fickle Hill 304 Comment
  UC416654  Galium parisiense Harley P. Chandler June, 1901 1305 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC196077  Galium trifidum Joseph P. Tracy 1900-9-3 941 Humboldt Eureka Northern Coast Region 0 Comment
  UC1192013  Galium trifidum Malcolm A. Nobs and S. Galen Smith 1949-8-3 1160 Humboldt 1 mi s Fields Landing (borders of irrigation ditch); Eel River Valley Comment
  HSC58322  Galium triflorum Overton, Butler 1979-8-2 12619 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1586851  Galium triflorum Juha Pykala 1987-6-20 1857 Humboldt n house of Prof. D. H. Norris; Kneeland, Greenwood Heights 350 Comment
  CAS-BOT-BC303388  Gamochaeta ustulata Joseph P. Tracy 1936-8-1 15057 Humboldt Canyon Creek, 6 miles SE of Blue Lake 365 Comment
  HSC41344  Garrya buxifolia Brad Klipfel 1974-9-17 577 Humboldt Horse Mtn. 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
  RSA89597  Garrya fremontii M. F. Moseley 1952-8-21 344 Humboldt Along western valley wall of Willow Creek, mostly within Hoopa Indian Reservation, upstream from Willow Creek Village. Comment
  UC1196893  Garrya fremontii Joseph P. Tracy 1947-7-9 17840 Humboldt Horse Mountain 1402 Comment
  UC668300  Garrya fremontii Joseph P. Tracy 1935-7-14 14062 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC182147  Garrya fremontii L. B. Kildale 1930-8-3 10336 Humboldt Chaparall Mt. near Bug Creek 914 Comment
  CAS-BOT-BC58919  Gaultheria shallon Harley P. Chandler 1901-5-1 1161 Humboldt unspecified 30 Comment
  CHSC57372  Gaultheria shallon Eric G. Hartwell 1983-3-30 7 Humboldt Ca. 0.25 miles east of jct. of Jacoby Creek Rd. and Sonnenfelt Rd. T05N R01? S11 NW1/4 of SE1/4. 97 Comment
  HSC22502  Gaultheria shallon H. S. Logsdon 1964-5-13 40 Humboldt 4.0 mi. NE of Orick at Boye's Prairie, E side of Hwy. 101 Comment
  RSA257020  Gaultheria shallon Gary D. Wallace, Larry E. DeBuhr, G. Ansley Wallace 1972-5-22 1065 Humboldt Between Big Lagoon Co. Pk. and Hwy 101, south of Orick. Comment
  UC726595  Gaultheria shallon A. A. Heller 1923-7-10 13788 Humboldt Humboldt Camp between Scotia and Pepperwood; Humboldt Camp Comment
  HSC54887  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-25 10897 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC74457  Gayophytum heterozygum Gail Newton 1980-8-10 2013 Humboldt Near Blake Mtn. 1798 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
  JEPS64791  Genista monspessulana W. L. Jepson 1936-8-11 17869 Humboldt Philipsville South Fork Eel River Comment
  CAS-BOT-BC217411  Gentiana plurisetosa Doris K. Kildale 1925-8-17 1194 Humboldt Trinity Summit 1917 Comment
  RSA46825  Gentiana plurisetosa Doris K. Kildale 1925-8-17 s.n. Humboldt Trinity Summit 1829 Comment
  UC213321  Gentiana plurisetosa Joseph P. Tracy 1919-9-22 5274 Humboldt Trinity Summit Northern Coast Ranges (in meadows) 1828 Comment
  RSA21018  Gentiana sceptrum Carl B. Wolf 1937-9-12 9328 Humboldt Big Lagoon, south side along Redwood Highway. 6 Comment
  RSA246869  Gentiana sceptrum Robert F. Thorne, P. C. Everett 1965-8-9 35288 Humboldt Big Lagoon. 3 Comment
  UC534995  Gentiana sceptrum H. E. Parks 1931-7-1 10152 Humboldt Bishop Pine Lodge Trinidad 76 Comment
  JEPS47053  Gentianopsis simplex Joseph P. Tracy 1919-9-22 5275 Humboldt Trinity Summit 1828 Comment
  UC1541258  Geranium molle H. E. Parks, J. P. Tracy 1930-5-25 875 Humboldt Laribee Valley 762 Comment
  JEPS44855  Geum macrophyllum Milo S. Baker 1923-8-1 184 Humboldt roadside from Kneeland to Eureka Comment
  SEINET200731  Gilia capillaris Joseph P. Tracy 1933-7-25 12866 Humboldt Grouse Mtn. 1524 Comment
  HSC74459  Gilia capitata M. A. Baker 1980-5-18 1364 Humboldt Near Black Mtn. 792 Comment
  POM188372  Gilia capitata Marcus E. Jones 1931-6-16 s.n. Humboldt Junction East of Arcata Comment
  RSA275284  Gilia capitata J. P. Smith 1973-5-26 6816 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  BLMAR195  Gilia capitata subsp. capitata Donald Hazlett 1994-6-7 195 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CDA40044  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1990 Humboldt The Pacific Lumber Company, THP 1-02-306 HUM. East side headwaters of Brushy Creek. Comment
  CAS-BOT-BC225475  Gilia millefoliata Lewis S. Rose 1972-6-5 72004 Humboldt Samoa 3 Comment
  CHSC68788  Gilia millefoliata Vernon Oswald 1997-6-5 8543 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
  HSC16988  Gilia millefoliata L. H. Myers 1963-5-13 14 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  JEPS69508  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  HSC100596  Gilia tricolor Carl C. Marshall May 1887 420 Humboldt Dobbyn's Creek. Comment
  UC1197905  Gilia tricolor subsp. tricolor Joseph P. Tracy 1929-5-5 8561 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River, Miranda (along South Fork of Eel River) 121 Comment
  UC1191700  Glaux maritima Malcolm A. Nobs, S. Galen Smith 1949-8-11 1343 Humboldt at eastern shore of Stone Lagoon Stone Lagoon Comment
  UC1239686  Glechoma hederacea Joseph P. Tracy 1921-6-4 5811 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  CAS-BOT-BC218432  Glehnia littoralis subsp. leiocarpa Milo S. Baker 1927-8-16 2449 a Humboldt Near beach, Samoa Comment
  RSA246749  Glehnia littoralis subsp. leiocarpa R. F. Thorne, P. Everett 1965-8-9 35304 Humboldt Big Lagoon 3 Comment
  HSC10077  Glyceria X occidentalis L. M. Malloy 1965-5-20 33 Humboldt On Fickle Hill Rd. 2 mi. from Arcata. Comment
  HSC58659  Glyceria elata G. L. Clifton 1979-7-31 11866 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC10079  Glyceria fluitans J. P. Tracy 1933-7-20 19801 Humboldt Arcata bottom 15 Comment
  SEINET200358 Image available Glyceria occidentalis J. P. Tracy 1930-8-3 9147 Humboldt Buck Mtn near Little Van Duzen; lower foothills of its NW slope 762 Comment
  UC1103751  Glyceria striata Joseph P. Tracy 1903-6-14 1922 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC32533  Gnaphalium palustre Thomas W. Nelson 1973-9-3 1129 Humboldt McKeown Ranch N of Dinsmore, rocky alluvium along Mad River Comment
  HSC53977  Gnaphalium palustre Griswold, Butler 1979-7-11 7051 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  POM257415  Gnaphalium palustre H. E. Parks, S. T. Parks 1937-1 24026 Humboldt Spruce Cove, Trinidad. Comment
  HSC49136  Gnaphalium palustre R. Becking 1979-7-29 Humboldt Van Duzen River at Cheatam Grove E of Carlotta Comment
  UC1199353  Gnaphalium palustre Joseph P. Tracy 1918-7-2 4985 Humboldt upper Mattole Valley; Northern Coast Ranges, Mattole Valley 152 Comment
  SEINET8726298 Image available Godetia amoena S. K. Harris 1936-1 s.n. Humboldt On south side of Domingo Gulch on road from Petrolia to Cape Mendocino, 30 Comment
  HSC76552  Goodyera oblongifolia Teresa Prendusi 1981-7-7 126 Humboldt Near Slate Creek Butte. 1158 Comment
  HSC53979  Gratiola ebracteata Griswold, Butler 1979-7-11 7054 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC1222817  Gratiola ebracteata Joseph P. Tracy 1951-6-21 Humboldt bed of former Goose Lake (Hydesville, back of the Everett Beck house (formerly George Gray's)); bed of former Goose Lake Comment
  HSC79171  Grindelia hirsutula C. K. Geldin-Meyers 1985-8-5 101 Humboldt Mouth of Davis Creek, S of Cape Mendocino 3 Comment
  JEPS25801  Grindelia hirsutula L. R. Heckard 1960-8-31 1220 Humboldt s end Dry Lagoon Beach State Park Comment
  SBBG62631  Grindelia hirsutula R. Hartwell 1938-8-5 Humboldt Mattole Rd on coast between Capetown and Petrolia, along beach Comment
  UC1093969  Grindelia hirsutula Herbert L. Mason 1932-7-21 7100 Humboldt Big Lagoon Big Lagoon Comment
  UC1199435  Grindelia hirsutula Joseph P. Tracy 1938-6-17 15955 Humboldt s point of Cape Mendocino Cape Mendocino (in exposed situations near ocean shore) 3 Comment
  UC1541451  Grindelia hirsutula H. E. and S. T. Parks 1930-9-14 773 Humboldt n shore Big Lagoon Comment
  CDA6159  Grindelia stricta var. platyphylla T. C. Fuller 1958-6-17 1719 Humboldt Maritime bluff above Oceanhouse, Cape Mendocino. 0 Comment
  RSA21023  Grindelia stricta var. stricta C. B. Wolf 1937-9-12 9333 Humboldt Humboldt Bay, 1 mile south of Arcata on road to Eureka. 3 Comment
  RSA638980  Grindelia stricta var. stricta R. F. Thorne, Percy C. Everett 1965-8-7 35204 Humboldt Samoa Peninsula. 0 Comment
  HSC99536  Hackelia californica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 201 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1738 Comment
  HSC44510  Hastingsia alba Brad Klipfel 1973-7-1 116 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA47164  Hastingsia serpentinicola Doris K. Kildale 1927-7-17 3771 Humboldt Bug Creek, Chaparral Mountain Comment
  UC524125  Helenium bigelovii Ira L. Wiggins 1932-7-19 5891 Humboldt 1.5 mi n Trinidad Head Comment
  CAS-BOT-BC306868  Helenium bolanderi Carl B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park 6 Comment
  UC1409057  Helenium bolanderi Robert F. Thorne and P. Everett 1965-8-7 35194 Humboldt at s end Big Lagoon 1 Comment
  CAS-BOT-BC306870  Helenium bolanderi Volney Rattan 1879-1-1 s.n. Humboldt Unspecified Comment
  RSA20846  Helenium bolanderi C. B. Wolf 1937-6-18 8886 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  UC1239638  Heliotropium curassavicum Joseph P. Tracy 1938-8-28 16135 Humboldt Stone Lagoon Beach Comment
  UCD132967  Helminthotheca echioides Collector unknown Date Unknown s.n. Humboldt exact location unknown. Comment
  HSC44613  Hemitomes congestum R. York 1978-6-5 190 Humboldt 12 mi. up Waterman Ridge Rd. off of Hwy. 299. Bulk Collection 123 610 Comment
  HSC63140  Hemitomes congestum M. A. Baker 1979-6-29 952 Humboldt 900 Comment
  CAS-BOT-BC310074  Hemizonella minima Joseph P. Tracy 1930-7-16 8958 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  CHSC57416  Hemizonella minima L. P. Janeway 1984-6-23 897 Humboldt Titlow Hill. On ridge top. 1478 Comment
  UC582404  Hemizonella minima Joseph P. Tracy 1929-7-4 8631 Humboldt French Camp Ridge 1066 Comment
  HSC96210  Hemizonella minima J. McIntire, S. Lyon 2005-6-10 10 Humboldt Ca. 0.7 mi. due W of Spike Buck Mtn. off F.S. Road NF1 1610 Comment
  RSA11161  Hemizonia congesta C. B. Wolf 1927-8-29 1218 Humboldt Devils' Gate, S of Cape Mendocino Comment
  UC249806  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1923-7-4 6529 Humboldt Valley of South Yeager Creek Northern Coast Ranges, Valley of South Yeager Creek 762 Comment
  UC275452  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-7-18 7215 Humboldt Cape Ridge Northern Coast Ranges, Cape Mendocino 304 Comment
  POM228359  Hemizonia tracyi S. K. Harris 1936-6-20 s.n. Humboldt Above Van Duzen River about 1 mile west of Bridgeville Comment
  UC180509  Heracleum lanatum Joseph P. Tracy 1914-6-14 4511 Humboldt Carlotta North Coast Ranges, Carlotta 60 Comment
  HSC76406  Heracleum maximum Denis Kearns 1981-7-23 428 Humboldt Near Whiteys Peak. 1524 Comment
  SBBG25781  Hesperocyparis macrocarpa E. R. Blakley 1966-8-17 6801 Humboldt Patrick's Pt, 5 mi N of Trinidad 60 Comment
  CAS-BOT-BC143655  Heteromeles arbutifolia Doris K. Kildale 1928-7-1 5315 Humboldt Klamath RIver at mouth of Bluff Creek Comment
  JEPS2423  Heterotheca oregona var. rudis W. L. Jepson 1932-7-25 16398 Humboldt Old Grant Camp Eel River Comment
  HSC74179  Heuchera merriamii M. A. Baker 1980-7-23 3176 Humboldt Near Orleans Mtn. 1859 Comment
  HSC20191  Heuchera micrantha D. E. Anderson 1962-5-1 2200 Humboldt 1 mi. W of Hoopa Comment
  HSC20194  Heuchera micrantha P. N. Slattery 1963-4-27 44 Humboldt Clam Beach Comment
  HSC44335  Heuchera micrantha Brad Klipfel 1975-6-17 676 Humboldt Horse Mtn. Comment
  JEPS43498  Heuchera micrantha Lincoln Constance 1934-5-26 680 Humboldt South Fork Eel River (North Dyerville Flat Grove, near Founders Tree); Bull Creek Region 48 Comment
  CAS-BOT-BC420405  Heuchera micrantha var. diversifolia Harley P. Chandler 1901-5-1 1231 Humboldt Redwood Belt 457 Comment
  CAS-BOT-BC420722  Heuchera micrantha var. diversifolia Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  RSA0063134  Heuchera micrantha var. hartwegii Joseph P. Tracy 1950-6-8 18716 Humboldt Bluffs at the Sand Cut . Wild Cat Rd. 2 miles S of Ferndale. 305 Comment
  HSC76421  Hieracium albiflorum Teresa Prendusi 1981-7-21 291 Humboldt Near Whiteys Peak 1646 Comment
  HSC57977  Hieracium greenei G. L. Clifton, Griswold 1979-7-31 11701 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC74410  Hieracium scouleri Gail Newton 1980-8-10 2024 Humboldt Near Blake Mtn. 1798 Comment
  POM311256  Hierochloe occidentalis Keith C. Hughes 1961-2-3 327 Humboldt Richardson Grove State Park; Coast Ranges Mt. Range 137 Comment
  UC492249  Hirschfeldia incana Joseph P. Tracy 1931-5-21 9434 Humboldt Eel River, Alton to Fortuna Eel River; Northern Coast Region, Eel River 15 Comment
  CAS-BOT-BC280734  Holcus lanatus Doris K. Kildale 1928-6-24 7062 Humboldt Redwood Creek at Berrys 289 Comment
  HSC10139  Holcus lanatus W. F. Nickel 1965-4-28 Humboldt On Humboldt State Campus behind biological science building, near baseball field. Comment
  HSC58657  Holcus lanatus G. L. Clifton 1979-7-31 11851 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC71745  Holcus lanatus M. A. Baker 1980-6-26 2429 Humboldt Near Sims Creek 610 Comment
  HSC79451  Holcus lanatus Kenneth Clark 1980-6-14 673 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  UCD84850  Holcus lanatus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  UCD84972  Holcus lanatus Joseph P. Tracy 1949-7-6 18330 Humboldt Eureka. 30 Comment
  CAS-BOT-BC149907  Holodiscus discolor Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  RSA449758  Holodiscus discolor Carl B. Wolf 1937-8-13 9227 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC666850  Holodiscus discolor Joseph P. Tracy 1933-8-30 13031 Humboldt Grouse mountain 1524 Comment
  RSA60501  Holodiscus discolor John H. Thomas 1949-6-14 925 Humboldt Klamath River Valley between Weitchpec and Hoopa. Comment
  HSC102217  Hordeum brachyantherum subsp. brachyantherum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1133 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC926329  Hordeum brachyantherum subsp. brachyantherum A. S. Hitchcock 1915-7-13 1512 Humboldt Eureka Comment
  HSC102700  Hordeum marinum subsp. gussoneanum J. P. Smith 2013-6-16 13727 Humboldt Along State Route 36, just west of the 31.40 highway sign (milepost). 757 Comment
  HSC100516  Hosackia crassifolia Carl C. Marshall Jun 1886 239 Humboldt Near Mad River and E of Hoopa. Comment
  HSC48869  Hydrophyllum occidentale Brad Klipfel 1973-6-10 51 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET12279830  Hydrophyllum occidentale H. P. Chandler 1901-1 1263 Humboldt Redwood Belt 457 Comment
  UC659488  Hydrophyllum occidentale Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2618 Humboldt near Eureka (lower slopes of Buck Mountain); Buck Mountain 792 Comment
  HSC13541  Hydrophyllum tenuipes H. E. Parks, J. P. Tracy 1930-5-25 863 Humboldt Van Duzen River 305 Comment
  HSC62688  Hydrophyllum tenuipes Michelle Stevens 1979-4-21 60 Humboldt Ponds across from Clam Beach 0 Comment
  JEPS66787  Hypericum anagalloides W. H. Shockley 1879-1 Humboldt Eureka Comment
  CAS-BOT-BC400794  Hypericum anagalloides Doris K. Kildale 1928-7-29 5933 Humboldt Kinman Pond. Bear River Ridge Comment
  UC668260  Hypericum formosum var. scouleri Joseph P. Tracy 1935-7-21 14112 Humboldt opposite mouth of Willow Creek (Lack Pond); Trinity R. Valley, Lack Pond 152 Comment
  SEINET6178743  Hypericum perforatum James P. Smith 1973-5-26 6830 Humboldt Scotia Bluffs along the Eel River near Rio Dell.; 0 Comment
  UC249878  Hypochaeris glabra Joseph P. Tracy 1924-5-17 6678 Humboldt at Eureka Northern Coast Ranges, Eureka 0 Comment
  RSA170208  Hypochaeris glabra Joseph P. Tracy 1948-5-31 18020 Humboldt Dobbyn Creek; William Perry place. 152 Comment
  HSC100106  Hypochaeris radicata A. Montalvo 1975-5-24 271 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UCSB6709  Hypochaeris radicata Keator, Glenn 1958-6-18 Humboldt In the vicinity of Smith River (the town) Comment
  HSC91594  Ilex aquifolium E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near entrance Comment
  RSA170251  Iliamna latibracteata Joseph P. Tracy 1949-9-1 18525 Humboldt Willow Creek Canyon, along Trinity Hwy 762 Comment
  RSA78186  Iris Rimo C. Bacigalupi 3414 Humboldt Under Pseudotsuga and Abies concolor, about Snow Camp meadow, ridge between Mad River and Redwood Creek (Bald Mountain) 1433 Comment
  HSC13857  Iris douglasiana Elrid H. Spinas 1948-6-16 59 Humboldt Horse Mtn. Comment
  HSC13866  Iris douglasiana R. E. Hafenfeld 1965-5-9 3 Humboldt 0.5 mi. S of Fern Canyon Comment
  SD90155  Iris douglasiana Benjamin C. Stone 1952-6-20 116 Humboldt At Sone Lagoon, 2 miles south of Orick on Highway 101. 14 Comment
  HSC13859  Iris douglasiana S. S. Stutz 1963-5-4 34 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  RSA137356  Iris douglasiana Lee W. Lenz, E. K. Balls 1956-6-12 21666 Humboldt Between Willow Creek and Blue Lake, U.S. Highway 299 366 Comment
  UCD138708  Iris douglasiana L. W. Lenz; E. K. Balls 1956-6-12 21666 Humboldt Between Willow Creek and Blue Lake, U.S. Hwy 299. 365 Comment
  UCSC000156  Iris douglasiana H. L. Person 1931-7-30 s.n. Humboldt Eureka, Fieldbrook Comment
  UC1193099  Iris longipetala P. Zinke 1950-10-11 188 Humboldt 4 mi se Punta Gorda; Lake Ridge 243 Comment
  HSC44159  Iris purdyi Thomas W. Nelson, Jane P. Nelson 1977-6-19 3515 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  JEPS88847  Iris tenuissima Carol A. Wilson 1992-5-17 92 -ph22 Humboldt 12.1 mi e U.S. Hwy 101 (on Bald Hill Rd); Redwood National Park 701 Comment
  CAS-BOT-BC88650  Isatis tinctoria Joseph P. Tracy 1939-4-29 16239 Humboldt Klamath River at mouth of Slate Creek. 121 Comment
  HSC25051  Isatis tinctoria D. E. Anderson 1972-6-11 Humboldt Barry Summit Comment
  UC667941  Isoetes howellii Joseph P. Tracy 1935-5-25 13841 Humboldt Fort Seward 106 Comment
  UC667944  Isoetes howellii Joseph P. Tracy 1935-5-25 13842 Humboldt Fort Seward 106 Comment
  HSC77918  Isolepis cernua L. P. Janeway, Paul Wilson 1984-5-25 819 Humboldt N Spit of Humboldt Bay, BLM lands near the Coast Guard Station 5 Comment
  JEPS64019  Isolepis cernua W. L. Jepson 1921-8-7 9326 Humboldt on the flats and beach Stone Lagoon Comment
  JEPS11945  Isolepis cernua Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-10 4759 B Humboldt along U.S. Highway 101 0.4 mi s of the southern boundary marker Dry Lagoon Beach State Park; s of Dry Lagoon Beach State Park Comment
  RSA246799  Juncus balticus subsp. ater Robert F. Thorne, Percy C. Everett 1965-8-9 35290 Humboldt Big Lagoon. 3 Comment
  CHSC2217  Juncus breweri M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  HSC90771  Juncus bufonius Gail Newton 1982-6-10 3602 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC13995  Juncus bufonius D. E. Anderson 1961-9-9 1786 Humboldt Along Hwy. 101 Comment
  HSC98855  Juncus covillei Cara Witte 2008-7-30 972 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  RSA70280  Juncus covillei F. W. Peirson 1923-7-9 3666 Humboldt Humboldt County State Park on Eel River, northern California. Comment
  UC1152108  Juncus covillei Joseph P. Tracy 1930-6-29 8818 Humboldt near Dinsmore's; Buck Mountain Comment
  UC1103047  Juncus ensifolius Joseph P. Tracy 1919-9-18 5238 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC1152102  Juncus ensifolius Joseph P. Tracy 1927-7-17 8278 Humboldt near Three Cabins ((Mad River Trip)) Comment
  HSC57986  Juncus exiguus G. L. Clifton, Terry Griswold 1979-7-31 11721 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC74174  Juncus exiguus M. A. Baker 1980-7-22 3123 Humboldt Near Grogan Hole. 1676 Comment
  UC167841  Juncus falcatus subsp. sitchensis Schmidt Humboldt Humboldt Bay Comment
  UC1196725  Juncus hesperius J. P. Tracy 1900-6-23 859 Humboldt immediate vicinity Eureka 0 Comment
  UCD150380  Juncus lescurii William Anderson and H. Mc. 1964-8-5 s.n. Humboldt Dry Lagoon. Comment
  HSC58113  Juncus mertensianus G. L. Clifton, Griswold 1979-8-1 12069 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC14075  Juncus oxymeris D. E. Anderson 1965-9-5 4089 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  JEPS63886  Juncus patens W. L. Jepson 1936-8-11 17871 Humboldt Phillipsville South Fork Eel River Comment
  UC201995  Juncus phaeocephalus Joseph P. Tracy 1918-7-3 4992 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  RSA70263  Juncus phaeocephalus var. phaeocephalus F. W. Peirson 1923-7-11 3669 Humboldt 7 miles N of Arcata, Humboldt County Comment
  RSA54122  Juncus tenuis Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  UC1225905  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1942-6-23 17262 Humboldt Trinity Summit, at Water Dog Lakes Water Dog Lakes; Trinity Summit, Water Dog Lakes 1889 Comment
  JEPS11129  Keckiella corymbosa Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  RSA424319  Keckiella corymbosa Lester Rowntree 1931-7-21 s.n. Humboldt Mattole River Bridge 2 miles from Petrolia. Comment
  UCD123822  Keckiella corymbosa D. Wiesendanger; F. Randall 1926-7-1 1541 Humboldt Richardson's Grove, Redwood Highway. Comment
  UC552314  Lactuca biennis Joseph P. Tracy 1934-8-14 13583 Humboldt near Myers; North Coast Ranges 60 Comment
  CAS-BOT-BC349841  Lactuca tatarica subsp. pulchella Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  UC1239673  Lamium amplexicaule Joseph P. Tracy 1939-7-8 16314 Humboldt Eureka 30 Comment
  HSC34652  Lamium purpureum A. M. Montalvo 1975-4-10 205 Humboldt Vacant lot bordering HSU campus between Union St. and A St. 15 Comment
  UC1199077  Lathyrus jepsonii var. californicus Joseph P. Tracy 1927-5-8 7987 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  HSC26882  Lathyrus latifolius Clifton Raymond Chesbrough 1973-6-19 89 Humboldt 0.5 mi. S of Trinidad along the coast Comment
  UCD106361  Lathyrus latifolius W. A. Williams 1951-6-15 s.n. Humboldt 20 mi. E. Willow Creek. Comment
  RSA406672  Lathyrus littoralis J. P. Smith, T. W. Nelson 1977-6-30 9217 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC1222414  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1946-5-19 17534 Humboldt Kneeland Prairie 762 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
  SEINET202727  Lathyrus polyphyllus Joseph Tracy 1948-7-11 18074 Humboldt Willow Creek Canyon along Trinity Highway Comment
  UC931758  Lathyrus polyphyllus C. L. Hitchcock 1949-6-8 19094 Humboldt 3 mi w Willow Creek (near Highway 299) Comment
  UC1199069  Lathyrus vestitus Joseph P. Tracy 1932-4-24 9815 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  SEINET3164358  Ledum glandulosum N. Dennis 1965-6-3 143 Humboldt Big Lagoon County Park; southwest corner of Big Lagoon Comment
  UCD133973  Leontodon saxatilis Linda M. Barker 1976-6-1 1562 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD133993  Leontodon saxatilis H. S. Reed 1941-7-26 s.n. Humboldt near Trinidad. Comment
  UC1223216  Leontodon saxatilis Joseph P. Tracy 1948-7-11 18072 Humboldt at Lack Pond Comment
  CAS-BOT-BC339129  Leontodon saxatilis subsp. saxatilis H. S. Reed 1941-7-26 s.n. Humboldt Near Trinidad Comment
  UC14403  Lepidium densiflorum Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  CAS-BOT-BC89074  Lepidium didymum M. S. Taylor 1980-10-9 3365 Humboldt Bed of Jacoby Creek, ca. 0.25 mile west of its junction with Arcata, in Bayside. 15 Comment
  UC1116218  Lepidium strictum Joseph P. Tracy 1946-5-30 17540 Humboldt vicinity Carlotta 30 Comment
  UC1225825  Leptosiphon latisectus Joseph P. Tracy 1948-6-13 18048 Humboldt 2 mi n Harris 609 Comment
  UC908950  Leptosiphon latisectus Joseph P. Tracy 1927-5-8 7976 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  CAS-BOT-BC341829  Lessingia nemaclada Harley P. Chandler 1901-6-1 1503 Humboldt North Coast Ranges. Klamath River 426 Comment
  RSA44412  Lessingia nemaclada H. M. Pollard 1948-8-3 s.n. Humboldt Orleans Comment
  CDA7526  Leucanthemum vulgare T. C. Fuller 1958-6-17 1832 Humboldt Freeway at Arcata. 0 Comment
  HSC66273  Lewisia cotyledon var. cotyledon M. A. Baker 1980-7-24 3196 Humboldt Near Orleans Mtn. 1625 Comment
  HSC48837  Lewisia nevadensis Brad Klipfel, J. O. Sawyer, J. P. Smith 1973-5-27 28 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC573707  Leymus mollis subsp. mollis H. S. Yates 1936-6-18 5727 Humboldt near mouth of Little River; Eureka Quadrangle 4 Comment
  RSA246914  Leymus vancouverensis R. F. Thorne, P. Everett 1965-8-9 35313 Humboldt Big Lagoon County Park 3 Comment
  HSC99076  Ligusticum apiifolium Cara Witte 2007-7-3 405 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1231 Comment
  JEPS14228  Ligusticum apiifolium Joseph P. Tracy 1934-7-22 13485 Humboldt at crossing of Kneeland to Bridgeville rd. North Yager Creek 396 Comment
  UC1197172  Ligusticum apiifolium Joseph P. Tracy 1939-8-5 16379 Humboldt along Van Duzen R. below Dinsmore's; Van Duzen R. 762 Comment
  SEINET12057698  Lilium F. H. Utech 1977-6-30 s.n. Humboldt Redwoods National Park Comment
  CAS-BOT-BC508400  Lilium columbianum L. R. Abrams; R. Bacigalupi 1922-6-25 8260 Humboldt Between Trinidad and Big Lagoon Comment
  RSA259542  Lilium columbianum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2032 Humboldt Bald Hills Road just east of Redwood National Park Comment
  UC1035026  Lilium columbianum A. M. Vollmer and L. Beane Jul 1953 121 Humboldt Comment
  RSA74747  Lilium kelloggii Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On road to Bald Mountain, east of Korbel Comment
  CAS-BOT-BC130688  Lilium occidentale A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt Table Bluff, near Eureka Comment
  JEPS62029  Lilium rubescens Mrs. M. H. Manning 1901-7-27 319 Humboldt Bald Hills Comment
  UC17908  Limnanthes douglasii J. P. Tracy 1899-5-7 31 Humboldt Eureka Comment
  UC1005603  Limnanthes douglasii Frank W. Gould 1939-5-29 836 Humboldt near ski hut; Horse Mountain 1005 Comment
  HSC17100  Limnanthes douglasii subsp. nivea William J. Ferlatte, B. D. Rogers 1966-6-15 2106 Humboldt Larabee Valley 762 Comment
  UC146167  Linanthus androsaceus J. P. Tracy 1908-6-7 2606 Humboldt mouth of Maple Creek Mad River, Maple Creek 152 Comment
  UC180237  Linanthus bicolor Joseph P. Tracy 1914-6-14 4503 Humboldt near Hydesville; Northern Coast Region 60 Comment
  JEPS79923  Linanthus ciliatus Joseph P. Tracy 12923 Humboldt s slope Grouse Mountain (towards Grouse Creek Basin); North Coast Ranges 1219 Comment
  CHSC1747  Linaria vulgaris A. Small 1954-6-4 Humboldt Near Eureka. Comment
  UC524126  Linaria vulgaris Ira L. Wiggins 1932-7-19 5890 Humboldt near Trinidad Head Comment
  SD42239  Linum lewisii Carl B. Wolf 1937-6-18 8889 Humboldt Table Bluff, between Humboldt Bay and Eel River. 29 Comment
  UC161076  Linum usitatissimum Joseph P. Tracy 1911-6-11 3236 Humboldt near Trinidad; Northern Coast Ranges 60 Comment
  HSC27569  Listera caurina J. D. Ackerman, A. Montalvo 1973-6-29 71 Humboldt 2 mi. N of Manila Comment
  HSC55134  Listera convallarioides G. L. Clifton, Griswold 1979-8-1 11972 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC27779  Listera convallarioides J. D. Ackerman 1973-8-19 113 Humboldt East edge of Mill Creek Lake, E of Hoopa Comment
  HSC45233  Listera convallarioides Thomas W. Nelson, Jane P. Nelson 1977-7-4 3604 Humboldt Alder Springs 1524 Comment
  JEPS37740  Lithocarpus densiflorus W. L. Jepson 1902-7-14 2024 A Humboldt Hupa Comment
  UC535731  Lithocarpus densiflorus Eleanor Armstrong 1934-8-23 1188 Humboldt Richardson Grove Comment
  RSA55100  Lithocarpus densiflorus var. densiflorus O. J. Murie 1934-11-30 2532 Humboldt South of Gerberville. Comment
  UC1225786  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-8-15 18135 Humboldt 2 mi e Grove's Summit; Trinity Summit 1524 Comment
  UC1196500  Lithophragma Harold E. Parks and Joseph P. Tracy 1942-5-16 11558 1/2 Humboldt vicinity Garberville 152 Comment
  HSC6863  Lobularia maritima R. T. Forester 1963-3-31 35 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  UC1199424  Logfia gallica Joseph P. Tracy 1936-8-23 15165 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC1223118  Logfia gallica Joseph P. Tracy 1950-6-23 18869 Humboldt 3 mi ne of Alderpoint; Doppyn Creek 213 Comment
  JEPS72927  Lolium multiflorum Lincoln Constance 1934-5-27 699 Humboldt gravel bar of South Fork Eel River s end Dyerville Bridge (Bull Creek Region); South Fork Eel River, Bull Creek Region 45 Comment
  HSC74113  Lolium perenne M. A. Baker 1980-6-16 1941 Humboldt Near Monks Camp. 1097 Comment
  HSC89608  Lolium perenne M. Roantree 1985-5-2 33 Humboldt E side of Trinidad Head. Comment
  HSC39043  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2657 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  UC1197164  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1942-6-23 17229 Humboldt 1 mi. w. Box Camp (on summit of ridge on Hoopa trail, Trinity Summit); Trinity Summit 1219 Comment
  HSC23086  Lomatium dasycarpum subsp. dasycarpum D. E. Anderson 1965-5-1 3588 Humboldt Along Hwy. 96, 3-4 mi. S of Weitchpec Comment
  RSA167240  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1950-7-6 19000 Humboldt On the Albee Road, 2 miles south of Burr Valley Comment
  SEINET189441  Lomatium dissectum Lincoln Constance, Alan A. Beetle; Joseph P. Tracy 1940-5-17 2617 Humboldt Lower slopes of Buck Mountain; near Eureka. 792 Comment
  HSC71822  Lomatium macrocarpum Thomas W. Nelson, Jane P. Nelson 1980-6-27 5937 Humboldt Along old trail to pond above Alder Spring, 0.5 mi. N of campground 1555 Comment
  OBI81634  Lomatium utriculatum Tracey Call, Viola Call 1964-6-19 2271 Humboldt Dry, west-facing hillside 1 mile north of Harris P.O. and ca 3.5 miles south of Harris Jct. Comment
  SD264747  Lomatium utriculatum Tracey Call, Viola Call 1964-6-19 2271 Humboldt Dry, west-facing hillside 1 mile north of Harris P.O. and ca 3I(c) miles south of Harris Jct. 609 Comment
  RSA254740  Lomatium vaginatum Thomas W. Nelson, James Nelson 1973-5-28 965 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1052838  Lonicera hispidula var. vacillans W. L. Colwell 1955-6-7 25 Humboldt 1/2 mi n Grasshopper Mountains lookout (3 mi w of Weott); Quad. 29-B-3 914 Comment
  UC1239553  Lonicera hispidula var. vacillans Joseph P. Tracy 1923-10-14 6572 Humboldt 5 mi n Blocksburg; Larrabee Creek 457 Comment
  CAS-BOT-BC241482  Lonicera involucrata var. ledebourii Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  HSC59496  Lonicera involucrata var. ledebourii M. A. Ericksen 1979-4-20 211 Humboldt 0.3 mi. S of Cranell Rd. and Little River Dr. Comment
  JEPS13670  Lonicera involucrata var. ledebourii W. L. Jepson with J. P. Tracy 1921-8-11 9408 Humboldt Big Lagoon Comment
  RSA455683  Lonicera involucrata var. ledebourii Charlotte M. Hoak 1931-7-15 s.n. Humboldt Alton. Comment
  SDSU2917  Lonicera involucrata var. ledebourii Harvey 1938-8-13 2278 Humboldt North of Arcata. Comment
  SEINET3523624 Image available Lotus americanus Joseph P. Tracy 1914-7-12 4583 Humboldt Eureka 0 Comment
  CHSC68782  Lotus corniculatus Vernon Oswald 1997-6-5 8538 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. 6 Comment
  SEINET12154168  Lotus corniculatus J. P. Tracy 1950-1 19345 Humboldt Field's Landing, 2miS of town 6 Comment
  HSC97945  Lotus crassifolius var. crassifolius Cara Witte 2007-6-26 357 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  RSA254790  Lotus denticulatus Thomas W. Nelson, James Nelson, A. Nelson 1973-5-28 949 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1223405  Lotus denticulatus Joseph P. Tracy 1934-6-14 13219 Humboldt Horse Mountain 1432 Comment
  UCR45449  Lotus micranthus Barry Silver 1986-4-23 524 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  JEPS19455  Lotus micranthus Joseph P. Tracy 1917-5-30 4795 Humboldt Northern Coast Region, mouth of Little River Little River; Northern Coast Region, Little River 6 Comment
  UC15566  Lotus nevadensis var. nevadensis Harley P. Chandler 1901-6-14 1487 Humboldt Orleans to Sommes Bar; North Coast Ranges, Klamath River 426 Comment
  UC594244  Lotus purshianus var. purshianus S. K. Harris and J. P. Tracy 1936-6-10 3249 Humboldt Tracy's Ranch Willow Creek Comment
  RSA90403  Lotus unifoliolatus F. W. Peirson 1926-7-12 7033 Humboldt Redwood Creek, Orick. Comment
  HSC98994  Lotus unifoliolatus var. unifoliolatus Cara Witte 2008-8-16 1021 Humboldt Forest Service Road 5N10. 1/4 mile east of intersection with National Forest 1. 1359 Comment
  UC1197304  Lotus wrangelianus Joseph P. Tracy 1927-7-24 8303 Humboldt 3 mi s Point of Cape; Northern Coast Ranges, Cape Mendocino 3 Comment
  UC314622  Ludwigia palustris Joseph P. Tracy 1926-8-12 7765 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  HSC74666  Luina hypoleuca Gail Newton 1981-8-7 2423 Humboldt Near Bug Creek Butte 1244 Comment
  RSA254752  Lupinus Thomas W. Nelson, James Nelson, A. Nelson 1973-5-28 955 Humboldt McKeown Ranch north of Dinsmore. Comment
  SEINET5766215 Image available Lupinus N. H. Russell 1967-6-16 67 -11 Humboldt Clam Beach County Park, about 10 miles north of Eureka Comment
  CAS-BOT-BC201188  Lupinus Doris Kildale Gillespie 1931-6-7 10637 Humboldt South Fork Mt., Black Lookout 1726 Comment
  CAS-BOT-BC201193  Lupinus L. R. Abrams 1922-6-25 8235 Humboldt 2 mi south of Fortuna Comment
  UC503012  Lupinus adsurgens Joseph P. Tracy Jul 16 1930-Jul 19 1930 9059 Humboldt near Blake lookout, South Fork Mountain along summit; Northern Coast Ranges, South Fork Mountain 1737 Comment
  SEINET10488353  Lupinus affinis Charles Piper Smith 1948-5-10 Smith 48248 Humboldt Hwy 101. 0.2 Miles s of miranda Comment
  UC1776380  Lupinus albicaulis R. Spellenberg 1990-7-9 Humboldt Extreme E edge county, 7 air mi. WNW of Hyampom, 42 mi S of Calif Hwy 299 and Berry Summit on USFS Rd. 1, ca 1 mi S of Blake Mtn. on South Fork Mountain. 1767 Comment
  UC1223276  Lupinus albicaulis var. shastensis Joseph P. Tracy 1937-8-12 15656 Humboldt Snow Camp 1402 Comment
  HSC14776  Lupinus arboreus S. J. Hawks 1965-5-18 84 Humboldt W of Arcata Airport. Comment
  HSC49089  Lupinus arboreus Patricia Shesgreen 1978-8-12 135 Humboldt 1/2 mi. E of Samoa Cookhouse on Vance Ave., Samoa. Comment
  UC1197255  Lupinus arboreus J. P. Tracy 1912-3-31 3566 Humboldt Blue Lake 30 Comment
  RSA246779  Lupinus arboreus var. arboreus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35166 Humboldt Samoa Dunes. 3 Comment
  HSC14787  Lupinus bicolor Allan R. Marshall 1962-5-13 14 Humboldt W side of Redwood Creek Bridge, along Hwy. 299 259 Comment
  NY15833  Lupinus constancei T. W. Nelson 1982-7-9 7079 Humboldt Blocksburg quadrangle. Sepentine barrens on Mt. Lassic (Signal Peak) and saddle to east. 1767.8 Comment
  POM10720  Lupinus latifolius subsp. viridifolius H. P. Chandler 1901-06 13658 Humboldt Klamath River. 152 Comment
  UC1223265  Lupinus latifolius var. latifolius Joseph P. Tracy 1939-7-9 16339 Humboldt Snow Camp Comment
  UC15889  Lupinus latifolius var. latifolius Harley P. Chandler June, 1901 1365 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  CDA5442  Lupinus rivularis D. G. Kelch 2007-7-25 7 .503 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  HSC89687  Lupinus rivularis William E. Avery, Mathew Henry Bergvall-Mensor, Steve Wilson 1989-3-23 Humboldt 40 m from Arcata Marsh parking lot on left side of the road 1 Comment
  HSC27555  Luzula comosa J. D. Ackerman 1973-3-27 36 Humboldt 1.5 mi. N of Manila Comment
  HSC74171  Luzula comosa M. A. Baker 1980-7-23 3182 Humboldt Near Orleans Mtn. 1859 Comment
  HSC14165  Luzula comosa S. R. Johnson 1965-4-30 47 Humboldt 0.5 mi. N of Luffenholtz Beach 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
  UC1152129  Luzula comosa Joseph P. Tracy 1930-7-23 9128 Humboldt at Cold Springs (Grouse Mountain); , at Cold Springs 1432 Comment
  CHSC115461  Luzula macrantha Peter F. Zika 2011-7-3 25497 Humboldt Titlow Hill Road, 3.7 road miles SE of Route 299 at Berry Summit, 1 air km SSW of Horse Mountain, Outer North coast Ranges. 1310 Comment
  CAS-BOT-BC441227  Luzula macrantha Joseph P. Tracy 1926-5-2 7446 Humboldt North Coast Ranges: Willow Creek Canyon, near Ruby Creek 609 Comment
  RSA78055  Lychnis coronaria P. A. Munz 1952-6-27 17799 Humboldt Boise Creek Public Camp west of Willow Creek. Comment
  RSA245025  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  SEINET6166096  Lycopodium clavatum W. Roderick 1967-9-15 s.n. Humboldt East of Trinidad, Camp 18 Georgia-Pacific Co. 30 Comment
  SEINET200596 Image available Lycopodium inundatum H. E. Parks, JP Tracy 1928-9-8 8504 Humboldt Big Lagoon Comment
  HSC14221  Lycopus uniflorus H. E. Parks, J. P. Tracy 1924-8-3 6765 Humboldt Big Lagoon 6 Comment
  LA31994  Lycopus uniflorus H. E. Parks; Joseph P. Tracy 1924-8-3 6765 Humboldt Big Lagoon 6 Comment
  RSA47156  Lycopus uniflorus Doris K. Kildale 1926-7-16 2385 Humboldt Big Lagoon Comment
  JEPS432  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt 2 mi. s. Field's Landing (near Still's ranch) Comment
  JEPS90109  Lysichiton americanus H. S. Yates 1936-6-18 5729 Humboldt near mouth of Little River Little River 4 Comment
  UCD138077  Lysichiton americanus Linda M. Barker 1976-3-11 1321 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC103699  Lysichiton americanus M. R. Mesler 2014-9-3 1638 Humboldt Arcata, Jolly Giant Creek Rd 49 Comment
  HSC49359  Lythrum hyssopifolia R. York 1979-5-18 302 Humboldt Along railroad tracks near the Arcata Redwood office along Hwy. 101 between Arcata and Eureka. Comment
  HSC59797  Lythrum hyssopifolia Clark L. Miller 1979-5-19 1148 Humboldt Along Samoa Blvd. before railroad tracks, 4 mi. W of Arcata. Comment
  RSA0015873  Lythrum hyssopifolia Lyman Benson 1927-7-11 61 Humboldt Weott Ranger Station. Seaward N Coast range, South Fork Eel River. 61 Comment
  RSA47139  Madia bolanderi Doris K. Kildale 1925-8-16 1180 Humboldt Trinity Summit, Elk Horn Prairie 1524 Comment
  HSC96257  Madia elegans J. McIntire, S. Lyon 2005-6-10 9 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 1006 Comment
  CAS-BOT-BC343017  Madia gracilis Joseph P. Tracy 1937-7-29 15596 Humboldt South Fork Mountain. West slope near top, at Hyampom Trail 1676 Comment
  CAS-BOT-BC343026  Madia gracilis Doris K. Kildale 1928-6-24 7076 Humboldt Redwood Creek at Berry's 289 Comment
  HSC58171  Madia gracilis G. L. Clifton, Griswold 1979-8-2 12245 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC582407  Madia gracilis Joseph P. Tracy 1935-7-23 14132 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  HSC44087  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1977-9-3 3725 Humboldt N of Alder Springs 1555 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
  UC582409  Madia gracilis Joseph P. Tracy 1937-7-29 15596 Humboldt w slope near top at Hyampom; South Fork Mountain 1676 Comment
  CAS-BOT-BC508513  Maianthemum dilatatum Ira L. Wiggins 1957-6-19 14131 Humboldt Trinidad Comment
  CDA39348  Maianthemum dilatatum Gordon Leppig 1998-5-11 760 Humboldt Northern California Peatlands; Big Lagoon County Park. Big Lagoon Bog. Comment
  HSC15600  Maianthemum dilatatum Francis Winter 1960-5-6 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC60294  Maianthemum dilatatum Phyllis Krieg 1979-4-28 Humboldt Azalea Park along trail, McKinleyville 30 Comment
  HSC95095  Maianthemum dilatatum Andrea Pickart 2002-6-30 132 Humboldt Lamphere Dunes Unit, Humboldt Bay Wildlife Refuge Comment
  RSA246767  Maianthemum dilatatum Robert F. Thorne, Percy C. Everett 1965-8-7 35178 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  HSC15641  Maianthemum racemosum subsp. amplexicaule Greg Bos 1965-5-15 281 Humboldt 4 mi. W of Berry Summit along Hwy. 299 671 Comment
  HSC15649  Maianthemum racemosum subsp. amplexicaule J. F. Knezevich 1968-5-21 447 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC40028  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson, Jane P. Nelson 1976-6-22 2874 Humboldt Area at Goat Hill. 1666 Comment
  HSC41341  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1974-9-7 559 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  RSA309620  Maianthemum racemosum subsp. amplexicaule Walter Wisura 1983-9-3 3932 Humboldt 3,2 mi W of Klamath River bridge W of Weitchpec, along road to Orick. Comment
  HSC60291  Maianthemum stellatum Phyllis Krieg 1979-4-28 Humboldt Azalea Park along trail, McKinleyville 30 Comment
  SEINET10838741  Malva nicaeensis Mary Susan Taylor 1982-10-24 Taylor 5182 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UC990712  Marah oregana Roxana S. Ferris 1951-9-5 12448 Humboldt Trinidad Head Comment
  HSC98545  Marah oregana Cara Witte 2008-6-2 674 Humboldt Along National Forest 1. North of Kinsey Ridge. 1291 Comment
  UC1222345  Marah oregana Joseph P. Tracy 1951-5-20 19402 Humboldt Barry Ridge Kneeland Prairie 762 Comment
  UC168954  Marah oregana Joseph P. Tracy 1909-5-30 2980 Humboldt Eureka Northern Coast Region 0 Comment
  RSA183519  Matricaria matricarioides D. W. Pierson 1966-5-12 39 Humboldt 1.5 miles east of Light House on Table Bluff road Comment
  HSC25766  Medicago lupulina Jana Kattenhorn 1970-10-28 150 Humboldt Mad River Bottoms, N Bank off Essex, off Hwy. 299 Comment
  JEPS65511  Medicago polymorpha Lincoln Constance 1934-5-26 668 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek region (s end) Comment
  HSC10337  Melica californica J. A. Waller 1965-5-2 31 Humboldt Along Hwy. 96 near Willow Creek. Comment
  UC180493  Melica californica Joseph P. Tracy 1913-6-18 4195 Humboldt opposite Buck Mountain (Dinsmore's Ranch, Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET10599370  Melica californica Joseph P. Tracy 1913-6-18 Tracy 4195 Humboldt Gravelly grassy hillside, Dinsmore's Ranch, in valley of Van Duzen River opposite Buck Mountain. 762 Comment
  UC1103761  Melica fugax Joseph P. Tracy 1913-6-17 4193 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC1145131  Melica fugax Joseph P. Tracy 1936-7-5 15041 1/2 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC281325  Melica harfordii W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  CAS-BOT-BC281026  Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Head of Brett Hole, Trinity Summit 1828 Comment
  UCD88315  Melica stricta A. H. Murphy 1951-4-18 s.n. Humboldt Ft. Seward. Next to railroad right-of-way adjacent to river in shade. 182 Comment
  HSC10367  Melica subulata R. D. Zortman 1963-5-5 31 Humboldt 5 mi. NE of Arcata, S of Mad River, off Warren Creek Rd. 91 Comment
  HSC10369  Melica subulata J. P. Tracy 1926-5-22 7503 Humboldt Prairie Creek. 152 Comment
  HSC10331  Melica subulata DWC 1956-4-27 Humboldt Mattole area. Comment
  UC1222474  Melilotus indicus Joseph P. Tracy 1943-11-28 17457 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  RSA246675  Melilotus indicus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-8 35248 Humboldt N. edge of Eureka, E. of Hwy. 101 5 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
  SD42344  Mentha canadensis Carl B. Wolf 1937-9-12 9329 Humboldt Big Lagoon, south side along Redwood Highway. 6 Comment
  UC535756  Mentha canadensis Eleanor Armstrong 1934-7-18 1127 Humboldt Richardson Grove; Sandbar 121 Comment
  UC1222666  Mentha spicata Joseph P. Tracy 1950-9-22 19370 Humboldt 8 mi below Orleans (Klamath River near Slate Creek); Klamath River near Slate Creek 121 Comment
  HSC25986  Mentzelia laevicaulis Thomas W. Nelson 1970-9-3 221 Humboldt Mad River. Comment
  RSA259592  Menyanthes trifoliata Unspecified 1976-5-14 s.n. Humboldt Slump pond just northwest of McClellan Mountain. Comment
  CAS-BOT-BC349177  Microseris elegans K. L. Chambers 1969-5-25 2924 Humboldt On road to Harris 5.2 mi. E of the freeway overpass at Garberville Comment
  RSA167429  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1947-7-9 17828 Humboldt Horse Mountain, lower slopes 1128 Comment
  UC582440  Microseris nutans Joseph P. Tracy 1935-7-27 14307 Humboldt McKay Prairie Trinity Summit 1584 Comment
  HSC26809  Mimulus alsinoides Thomas W. Nelson 1971-4-24 401 Humboldt Overlooking the East Fork of Willow Creek Comment
  JEPS1744  Mimulus alsinoides Clyde Ritchie Bell 1951-4-21 1045 Humboldt 7 mi s Hoopa Comment
  UC582607  Mimulus alsinoides Joseph P. Tracy 1925-6-7 7062 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  UC1196832  Mimulus arvensis Joseph P. Tracy 1929-4-28 8554 Humboldt near South Fork; Trinity River Valley 182 Comment
  LA209133  Mimulus aurantiacus C. C. & S. K. Harris; 1936-6-9 sn Humboldt Above Carlotta 60 Comment
  UC582604  Mimulus breweri Joseph P. Tracy 1932-7-10 10375 Humboldt Trinity Summit 1584 Comment
  UC162579  Mimulus cardinalis Joseph P. Tracy 1911-7-10 3480 Humboldt tributary of Trinity River (along Willow Creek near mouth); Northern Coast Ranges 243 Comment
  UCSB15618  Mimulus dentatus Breedlove, Dennis 1961-7-4 Humboldt 8 miles north of Orick on U.S. Highway 101 91 Comment
  UC582601  Mimulus douglasii Joseph P. Tracy 1925-5-24 7012 Humboldt Kneeland Prairie 762 Comment
  UC582705  Mimulus grandis Joseph P. Tracy 1933-6-6 12501 Humboldt Trinidad 3 Comment
  HSC22508  Mimulus guttatus W. B. Thompson 1967-7-20 17 Humboldt Along creek W of the access road to Clam Beach Co. Park Comment
  JEPS10790  Mimulus inodorus Joseph P. Tracy 1934-8-6 13561 Humboldt near Blue Lake; Mad River 15 Comment
  HSC103093  Mimulus kelloggii Sydney Carothers 2014-6-10 9 Humboldt Six Rivers National Forest, Lassics Botanical Area. Along trail to Mt. Lassic approaching Peak 1. 1707 Comment
  HSC44775  Mimulus moschatus Thomas W. Nelson, Jane Nelson 1977-7-4 3606 Humboldt Along road north from Alder Springs 1524 Comment
  JEPS13352  Mimulus nanus var. nanus W. K. Parks July, 1933 81423 Humboldt Buck Mt. Comment
  UC582706  Mimulus nasutus Joseph P. Tracy 1927-3-27 7850 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC1103538  Minuartia californica Joseph P. Tracy 1922-5-29 6072 Humboldt South Yager Creek Northern Coast Ranges (head) 762 Comment
  UC1116233  Minuartia californica Joseph P. Tracy 1948-6-13 18055 Humboldt ridge top near Harris 914 Comment
  SEINET6904195  Minuartia californica Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  CAS-BOT-BC388628  Minuartia douglasii Joseph P. Tracy 1941-6-15 16915 Humboldt Panther Gap, on the Bull Creek - Mattole Road 762 Comment
  HSC67388  Minuartia douglasii Thomas W. Nelson, James Nelson 1980-6-10 5413 Humboldt Along Swayback Ridge Rd., 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  CAS-BOT-BC388620  Minuartia douglasii Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. Trail 914 Comment
  UC1198335  Minuartia douglasii Joseph P. Tracy 1933-6-13 12559 Humboldt Bairs Ranch Redwood Creek 609 Comment
  JEPS51477  Minuartia nuttallii subsp. gregaria P. E. Goddard 1906-6 658 Humboldt Lasseck Peak Comment
  HSC4062  Minuartia pusilla H. E. Parks, J. P. Tracy 1930-5-25 866 Humboldt Laribee Valley 762 Comment
  UC902016  Mitella diversifolia Joseph P. Tracy and Harold E. Parks 1949-6-5 11654 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC433030  Mitella ovalis V. Rattan No date on label s.n. Humboldt Unspecified Comment
  CAS-BOT-BC433068  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt Klamath Mountains, Trinity Summit. Near Corral Prairie. 1524 Comment
  HSC38514  Moehringia macrophylla D. E. Anderson, J. P. Smith 1971-6-18 - 1086 Humboldt Horse Mtn. Comment
  HSC48618  Moehringia macrophylla Mark Flippo 1978-5-20 88 Humboldt USFS Rd. 8N10 Comment
  UCD63139  Moehringia macrophylla Heather Mehl 2008-4-15 s.n. Humboldt California. Humboldt County: Redwood National Park, 11 miles east of Hwy 101 on Bald Hills Road. 640 Comment
  HSC44557  Monardella odoratissima Brad Klipfel 1973-7-15 176 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS63389  Monardella odoratissima subsp. pallida Joseph P. Tracy Jul 16 1930-Jul 19 1930 8911 Humboldt South Fork Mountain near Camp McKay. Northern Coast Ranges 1676 Comment
  UC32590  Monardella odoratissima subsp. pallida Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  SEINET13948727 Image available Monardella villosa H. Lewis 1940-1 Humboldt 1 mi N of Richardson Grove State Park Comment
  SEINET12272555  Monardella villosa subsp. sheltonii H. P. Chandler 1901-1 1522 Humboldt Klamath River, Plants of the North Coast Ranges 457 Comment
  JEPS62412  Monardella villosa subsp. villosa W. L. Jepson 1932-8-8 16483 Humboldt Grasshopper Peak 1066 Comment
  UC2035872  Monardella villosa subsp. villosa Carl B. Wolf 1934-7-3 5923 Humboldt Weithpec junction of Klamath River and Trinity River 200 yards. west of school. 304 Comment
  UCD125294  Monardella villosa var. tomentosa D. Wiesendanger; F. Randall 1926-7-1 1547 Humboldt Richardson Grove, Redwood Highway. Comment
  UC1223246  Montia diffusa Joseph P. Tracy 1950-5-7 18652 Humboldt road to South Yager Valley is 5 mi n of Bridgeville (Valley of South Yager Creek); Valley of South Yager Creek 762 Comment
  UC673007  Montia howellii Joseph P. Tracy 1933-6-7 12526 Humboldt Bridgeville 198 Comment
  HSC55086  Montia parvifolia G. L. Clifton, Terry Griswold 1979-7-31 11753 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC673004  Montia parvifolia Joseph P. Tracy 1935-7-24 14170 Humboldt Trinity Summit, near Ranger Station Trinity Summit 1828 Comment
  JEPS43291  Montia parvifolia W. L. Jepson 1902-6-30 1961 Humboldt from Ukiah to the Hupa Indian Reservation (Redwood Creek); Redwood Creek Comment
  HSC16105  Morella californica D. E. Anderson 1961-9-13 1805 Humboldt Big Lagoon County Park Comment
  RSA152302  Muhlenbergia filiformis Joseph P. Tracy 1919-9-18 5233 Humboldt Trinity Summit. 1829 Comment
  UC212880  Muhlenbergia filiformis Joseph P. Tracy 1919-9-18 5233 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  JEPS70790  Myosotis discolor W. L. Jepson 1936-8-17 17917 Humboldt 2 mi. s. Fields Landing Comment
  UC582609  Myosotis verna Joseph P. Tracy 1937-5-17 15297 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CAS-BOT-BC101669  Myrica californica Doris K. Kildale 1926-11-28 2866 Humboldt Patrick's Point Comment
  RSA174002  Myrica californica Robert F. Thorne 1957-9-2 19009 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  SEINET3155577  Myrica californica J. W. Johnson 1961-11-27 1431 Humboldt Arcata; along the trail on the Hunt Farm, Samoa Peninsula. Comment
  UC275529  Myrica californica Joseph P. Tracy 1924-1-20 6596 Humboldt near Samoa (around Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  HSC77885  Myriophyllum aquaticum Wendy Madar 1978-5-16 Humboldt Catfish Lake, 3 mi. S Eureka Comment
  HSC77871  Myriophyllum sibiricum Bob Aaserude 1975-10-18 Humboldt 10 mi. NE of Weitchpec, off Hwy. 96, Fish Lake Comment
  HSC77912  Myriophyllum spicatum Bruce Hulberg 1977-10-23 771023 .17 Humboldt Fish Lake Comment
  UCD87653  Nassella pulchra A. H. Murphy 1951-3-30 s.n. Humboldt Mattole Valley. Along roadside near Mattole River Grange Hall. Comment
  UC582688  Navarretia Joseph P. Tracy 1937-7-19 15464 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  JEPS70235  Navarretia atractyloides Joseph P. Tracy 1925-7-12 7206 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC55077  Navarretia capillaris G. L. Clifton, Griswold 1979-7-31 11689 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC162571  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1911-7-6 3365 Humboldt Mountain Slopes along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges, btw Three Creeks and Willow Creek 762 Comment
  HSC17144  Navarretia pubescens William J. Ferlatte, B. D. Rogers 1966-6-15 2098 Humboldt E of Bridgeville on Hwy. 36 671 Comment
  HSC17149  Navarretia squarrosa W. D. Stevens 1967-7-16 43 Humboldt Along dirt road from old Hwy. 101 to top of N bank of Mad River Comment
  POM92408  Navarretia squarrosa L. R. Abrams 1922-6-25 8239 Humboldt 2 miles south of Fortuna Comment
  SEINET3812470 Image available Nemacladus capillaris Joseph P. Tracy 1930-7-10 8865 Humboldt Brannan Mt. 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
  HSC13603  Nemophila menziesii var. atomaria D. E. Anderson 1962-2-10 1911 Humboldt 1 mi. S of Trinidad Comment
  SD42585  Nemophila menziesii var. atomaria Carl B. Wolf 1937-6-19 8915 Humboldt North Coast Range, 3 mi. w. of Little Van Duzen River at summit of grade -- Dinsmores to Bridgeville. 762 Comment
  HSC6969  Noccaea fendleri subsp. californica D. E. Anderson 1962-7-14 2261 Humboldt Comment
  CAS-BOT-BC60564  Noccaea fendleri subsp. glauca Lincoln Constance; Reed C. Rollins 1942-5-12 2887 Humboldt Klamath-Siskiyou Region. Klamath River 7 miles northeast of Weitchpec. 121 Comment
  UCD110212  Notholithocarpus densiflorus Joseph P. Tracy 1948-9-20 18224 Humboldt Willow Creek Canyon, along Trinity Highway. 457 Comment
  UC774627  Nuphar lutea subsp. polysepala Carl B. Wolf 1937-9-9 9309 Humboldt 1 mi s of Capetown (on road to Cape Mendocino) 91 Comment
  HSC49510  Nuphar polysepala R. York 1979-4-16 263 Humboldt Along Hwy. 101 across from Clam Beach between Westhaven and McKinleyville 0 Comment
  HSC37911  Nuttallanthus texanus Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  CAS-BOT-BC142296  Oemleria cerasiformis Doris K. Kildale 1926-3-2 1862 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  UC1222315  Oemleria cerasiformis Joseph P. Tracy 1950-4-20 18618 Humboldt 2 mi w Dinsmore's (nw slope of Buck Mountain, lower slopes); Buck Mountain 762 Comment
  CDA38488  Oenanthe sarmentosa Margaret Bellue 1932-9-28 s.n. Humboldt Arcata. 0 Comment
  CDA38490  Oenanthe sarmentosa Tario 1932-10-7 s.n. Humboldt [no further data] 0 Comment
  CHSC70153  Oenothera glazioviana David K. Imper 1987-7-14 Humboldt South of Trinidad, waste area behind Matson home, just E. of US 101 near Moonstone Beach Exit. Comment
  HSC16524  Oenothera glazioviana David K. Smith 1968-11-20 67 Humboldt At jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  SEINET10453198  Oenothera hookeri subsp. montereyensis Mary Susan Taylor 1982-10-24 Taylor 5186 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  CHSC70028  Oenothera wolfii David K. Imper 1988-8-15 Humboldt Hoopa Square, just n of junction Hwy 299 and Big Hill Rd., E side of 299, S of Sawdust Burner. Roadside. 152 Comment
  HSC57979  Oreostemma alpigenum var. andersonii G. L. Clifton, Griswold 1979-7-31 11704 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC104287  Orobanche californica subsp. californica Samantha E. Andres 2016-6-7 17 Humboldt Big Lagoon, ~.5 mi. from the parking lot 3 Comment
  CAS-BOT-BC499671  Orobanche californica subsp. californica Ira L. Wiggins 1932-7-19 5894 Humboldt Near the beach at south end of Big Lagoon Comment
  HSC55013  Orthilia secunda G. L. Clifton 1979-7-31 11395 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  RSA0083228  Orthilia secunda C. B. Wolf 1937-8-13 9264 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road toward Trinity Summit. 1677 Comment
  HSC100675  Orthocarpus erianthus Carl C. Marshall Jun 1887 468 Humboldt Vicinity of Garberville. Comment
  HSC56153  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-8-1 12009 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  JEPS26161  Orthocarpus imbricatus E. Ethel Tracy 1919-8-1 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1524 Comment
  UC642274  Osmorhiza occidentalis Joseph P. Tracy 1928-6-24 8462 Humboldt Valley of South Yager Creek 762 Comment
  UC642277  Osmorhiza occidentalis Joseph P. Tracy 1933-7-26 12906 Humboldt Grouse Mountain 1630 Comment
  UC1103424  Oxalis oregana Joseph P. Tracy 1901-4-7 1006 Humboldt Eureka Northern Coast Ranges 0 Comment
  SD90203  Oxalis oregana Benjamin C. Stone 1952-6-20 113 Humboldt Holmes, on Highway 101 by Founders, Tree. Comment
  UCSB7499  Oxalis oregana Phillips, Priscilla 1958-6-7 Humboldt Near entrance to Prairie Creek Redwood Park, north of Orick Comment
  UC1145217  Panicum acuminatum var. acuminatum Joseph P. Tracy 1942-6-15 17153 Humboldt 1/2 mi ne Garberville; ne of Garberville 304 Comment
  UC1713146  Panicum acuminatum var. acuminatum Joseph P. Tracy 1918-9-29 5106 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges, South Fork Eel River above its mouth 60 Comment
  UC196966  Panicum acuminatum var. acuminatum Joseph P. Tracy 1915-6-6 4645 Humboldt at Eureka Eureka; Northern Coast Region, at Eureka 0 Comment
  CAS-BOT-BC253708  Panicum capillare Peter Rubtzoff 1968-9-4 5956 Humboldt Goulds Bar, S Fork Eel River SE of Weott Comment
  UC1103407  Parapholis incurva Joseph P. Tracy 1937-6-5 15328 Humboldt mouth of Little River 3 Comment
  JEPS94285  Parentucellia viscosa Vernon Oswald and Lowell Ahart 1997-9-4 8855 Humboldt Samoa Dunes Recreation Area at the s end of the North Spit separating Humboldt Bay from the ocean North Spit; Samoa Dunes Recreation Area Comment
  UCD123252  Parentucellia viscosa Linda M. Barker 1976-7-5 1640 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  RSA249521  Paspalum distichum R. F. Thorne 1965-9-19 35459 -b Humboldt Freshwater Lagoon S. of Orick 3 Comment
  HSC55334  Pedicularis racemosa Terry Griswold, Marvin Butler 1979-7-12 7178 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  JEPS60059  Pellaea andromedifolia Willis G. Corbitt 1933-4-9 Humboldt Scotia Bluffs Comment
  HSC74031  Pellaea brachyptera Gail Newton 1980-7-22 1674 Humboldt Near Devils Backbone 1554 Comment
  RSA43896  Penstemon anguineus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  UC577405  Penstemon anguineus Joseph P. Tracy 1936-8-8 15130 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit, e of Grove's Prairie 1524 Comment
  BLMAR273  Penstemon anguineus Jennifer Anthony-Wheeler 1999-7-30 273 Humboldt Lacks Creek, occuring in open, logged area of coniferous forests 1219 Comment
  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
  HSC56218  Penstemon deustus G. L. Clifton, Terry Griswold 1979-8-2 12241 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1238913  Penstemon heterophyllus Freed W. Hoffman 1946-5-20 1011 Humboldt Mattole River near Petrolia; North Coast Ranges, Mattole River nr Petrolia Comment
  JEPS11368  Penstemon heterophyllus var. purdyi Lincoln Constance 1934-5-26 676 Humboldt s end of Dyerville Bridge Bull Creek Region, South Fork Eel River, Dyerville Bridge (South Fork Eel River, Bull Creek Region) 45 Comment
  UC1222462  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1948-6-13 18052 Humboldt near Harris; near Harris 609 Comment
  UC1586982  Penstemon laetus Juha Pykala and D. H. Norris 1987-6-11 1548 Humboldt ne Bee Mountain; Six Rivers National Forest, ne of Bee Mountain 609 Comment
  HSC100914  Penstemon menziesii Carl C. Marshall Jun 1886 305 Humboldt Trail E of Hoopa. Comment
  UC1245388  Penstemon newberryi var. berryi Joseph T. Gregory 1935-7-26 765 Humboldt rocks near Water Dog Lakes Trinity Summit 1828 Comment
  UC577358  Penstemon newberryi var. berryi Joseph P. Tracy 1932-7-12 10472 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  UC1222779  Penstemon rattanii Joseph P. Tracy 1951-6-24 19533 Humboldt Cameron Hill , Cameron Hill (Kneeland Prairie) 762 Comment
  UC165061  Pentachaeta alsinoides Joseph P. Tracy 1903-5-23 1890 Humboldt dry hillside at Alder Point; Eel River 243 Comment
  HSC39178  Pentagramma triangularis D. E. Anderson, J. P. Smith 1971-6-28 - 1223 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UCD137788  Pentagramma triangularis subsp. triangularis Linda M. Barker 1976-3-11 1329 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  JEPS14222  Perideridia howellii Joseph P. Tracy 1939-9-4 16474 Humboldt Larrabee Valley; gully in foothills at edge of valley 731 Comment
  UC1197118  Perideridia parishii subsp. latifolia Joseph P. Tracy 1932-7-18 10707 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  BLMAR423  Phacelia bolanderi Jennifer Wheeler 2007-9-5 423 Humboldt Red Mountain, oil drum road near culvert 1219 Comment
  JEPS1446  Phacelia bolanderi Milo S. Baker 1923-7-10 1 Humboldt hwy s Garberville Comment
  RSA75339  Phacelia bolanderi F. W. Peirson 1928-7-4 7959 Humboldt On banks of Eel River at Robinson s Grove. Comment
  UC1199097  Phacelia bolanderi Joseph P. Tracy 1911-6-30 3274 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC198663  Phacelia bolanderi Joseph P. Tracy 1916-5-31 4704 Humboldt Stitz Creek Bluff Northern Coast Ranges, Eel River (along river from South Fork to Scotia) 60 Comment
  UC24318  Phacelia bolanderi J. Burtt Davy 1899-6-12 5468 Humboldt bluffs of river near Camp Grant; North Coast Ranges, E#el River Comment
  UC615274  Phacelia bolanderi Beryl O. Schreiber 1932-7-12 373 Humboldt near Klamath Comment
  UC673279  Phacelia bolanderi Lincoln Constance and Reed C. Rollins 1942-5-20 2999 Humboldt Dyerville Bridge Klamath-Siskiyou region, Eeel River (2 mi n of Weott) 48 Comment
  SEINET12330003  Phacelia bolanderi F. H. Utech 1986-1 86 -384 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  UC1222897  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1951-6-24 19539 Humboldt between serpentine rockpile and Ashfield Butte; Kneeland Prairie 762 Comment
  UC176065  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1913-6-21 4252 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC673228  Phacelia heterophylla subsp. virgata Lincoln Constance and Reed C. Rollins 1942-5-11 2876 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  HSC44535  Phacelia mutabilis Brad Klipfel 1973-7-1 143 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58179  Phacelia mutabilis G. L. Clifton 1979-8-2 12263 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1228294  Phacelia nemoralis subsp. oregonensis C. R. Bell 1951-5-4 1041 Humboldt road bank 0.7 mi s Bluff Creek Comment
  CAS-BOT-BC258863  Phalaris aquatica Joseph P. Tracy 1927-9-18 8366 Humboldt Carlotta 60 Comment
  UC577627  Phalaris aquatica H. S. Yates 1936-6-23 5857 Humboldt 2 mi se mouth of Mad River; Eureka Quad. Comment
  HSC10555  Phalaris arundinacea D. J. McVean 1965-5-18 79 Humboldt Along Old Arcata Rd., just S of intersection with Inidanola Rd. Arcata, CA Comment
  UC1152005  Phalaris californica Joseph P. Tracy 1951-6-26 19599 Humboldt on Butter Valley Road about 2 mi e junction of Kneeland Prairie Road Comment
  UC820491  Phalaris californica John Thomas Howell 1937-7-31 13718 Humboldt between Redwood Creek and Korbel; btw Redwood Creek and Korbel Comment
  HSC35714  Philadelphus californicus Thomas W. Nelson 1975-10-12 2235 Humboldt McKeown Ranch, N of Dinsmore Comment
  JEPS49596  Philadelphus lewisii W. L. Jepson 1902-7-29 2124 Humboldt Hupa Valley; along streams 243 Comment
  UC11465  Philadelphus lewisii J. Burtt Davy June 1899 5547 Humboldt along banks of river near Scotia; North Coast Ranges, Eel River Comment
  RSA0046048  Philadelphus lewisii Marcus E. Jones 1931-7-16 s.n. Humboldt Junction, East of Arcata. 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
  POM126105  Phleum alpinum Joseph P. Tracy 1906-7-1 2514 Humboldt At Eureka 0 Comment
  UC1103789  Phleum alpinum Joseph P. Tracy 1919-9-24 5293 1/2 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1889 Comment
  HSC48396  Phlox adsurgens Brad Klipfel 1973-6-10 148 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC48839  Phlox diffusa Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 31 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC82620  Phlox diffusa Thomas W. Nelson 1979-7-11 5004 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  SEINET10496854  Phlox diffusa Jones 1985-5-5 Jones 27 Humboldt T34n,r4e,sec.14, titlow road. Ca 8 miles s off hwy 299 going to horse mt. Found At intersection of titlow rd. And the raod to horse mt. Summit. Pinus, arbutus, Quercus chrysolepis, quercus vaccinifolia habitat 1143 Comment
  SEINET6630811  Phoradendron villosum J. R. Bruff 1937-3-19 802 Humboldt Oak Flat Camp- Ridge Route Comment
  CAS-BOT-BC452023  Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Spruce Cove, Trinidad Comment
  CAS-BOT-BC140584  Physocarpus capitatus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC73442  Picea sitchensis L. R. Abrams 1916-7-18 6131 Humboldt Arcata to Trinidad. Comment
  HSC89481  Picea sitchensis P. A. Daly 1986-3-12 72 Humboldt Trinidad Head, along trail 61 Comment
  RSA23  Picea sitchensis E. R. Johnson 1928-8-26 1146 Humboldt Arcata. Comment
  UC1219787  Picea sitchensis E. Fritz 1935-8-16 Humboldt Comment
  HSC98703  Pinus attenuata Cara Witte 2007-9-3 640 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36. 1448 Comment
  HSC54523  Pinus jeffreyi Overton, Butler 1979-7-23 9455 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  UC502912  Pinus ponderosa Joseph P. Tracy 1929-4-28 8541 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC4590  Piperia candida Harley P. Chandler Jun 1901 1385 Humboldt Hupa Indian Reservation North Coast Ranges 304 Comment
  UC14937  Piperia elegans Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 57721 Humboldt Trinity Summit trail, low down North Coast Ranges, Trinity Summit Comment
  RSA249357  Piperia transversa J. D. Ackerman 1973-8-23 116 Humboldt 2 miles north of Manila Comment
  UC13529  Piperia unalascensis Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC667003  Plagiobothrys bracteatus Joseph P. Tracy 1939-5-14 16287 Humboldt by spring Van Duzen Valley, Dinsmore's 731 Comment
  JEPS30758  Plagiobothrys reticulatus H. E. Parks 1937-7-1 24042 Humboldt Spruce Cove Trinidad 64 Comment
  POM126241  Plagiobothrys reticulatus 1907-6-20 2568 Humboldt Eureka 0 Comment
  UC526820  Plagiobothrys reticulatus Joseph P. Tracy 1933-5-20 12244 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges, Mattole Valley 30 Comment
  UC668230  Plagiobothrys reticulatus Joseph P. Tracy 1938-7-5 16013 Humboldt open flat by old Strong's District School House (5 mi e of town, Carlotta); Carlotta, old Strong's District School House 45 Comment
  SEINET12275870  Plagiobothrys scouleri J. P. Tracy 1950-1 18724 Humboldt Bear River Ridge Comment
  UC1222202  Plagiobothrys scouleri Joseph P. Tracy 1949-6-20 18315 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  JEPS7112  Plantago elongata Joseph P. Tracy 1927-6-26 8218 Humboldt Stone Lagoon 6 Comment
  UC1196140  Plantago erecta Joseph P. Tracy 1912-5-12 3638 Humboldt Eureka Northern Coast Region 0 Comment
  RSA246719  Plantago hirtella var. galeottiana Robert F. Thorne, Percy C. Everett 1965-8-7 35173 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  OBI11636  Plantago major Joseph P. Tracy 1942-7-25 17300 Humboldt Fickle Hill, 6 mi SE of Arcata Comment
  HSC48856  Platanthera dilatata var. leucostachys Brad Klipfel 1973-7-15 215 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC59802  Platystemon californicus Clark L. Miller 1979-5-24 3151 Humboldt Samoa Dunes off Samoa Blvd. Comment
  UC1196295  Platystemon californicus Joseph P. Tracy 1935-5-25 13871 Humboldt Fort Seward 106 Comment
  UC146077  Platystemon californicus Joseph P. Tracy 1904-4-24 2020 Humboldt sand dunes of Ocean Beach (at Humboldt Bay); Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC37515  Plectritis congesta A. M. Montalvo, J. D. Ackerman 1975-6-22 488 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  UC999834  Plectritis congesta S. C. Dyal 1938-6-11 719 b Humboldt 10 mi w of Dinsmore (on McClellan Mountain); McClellan Mountain Comment
  HSC63190  Pleuricospora fimbriolata M. A. Baker 1979-6-28 942 Humboldt Middle fork of Mill Creek. Comment
  UC552670  Pleuropogon californicus Joseph P. Tracy 1935-5-25 13846 Humboldt Fort Seward 106 Comment
  HSC103124  Pleuropogon refractus M. Mesler, Robin Bencie 2009-7-7 807 Humboldt Big Hill Rd, 10.7 miles from Hwy 96 1402 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
  HSC93191  Pleuropogon refractus Claire Golec 1998-5-20 Humboldt Blue Lake Comment
  RSA167306  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
  UC1103800  Pleuropogon refractus Joseph P. Tracy 1905-4-2 2158 Humboldt 1 mi below Blue Lake (on Mad River); Northern Coast Ranges, Mad River 60 Comment
  UC1258214  Pleuropogon refractus Paul But 1975-6-1 P 12 Humboldt about 3 mi n of Eureka (along Jacoby Creek Road); Jacoby Creek Comment
  CAS-BOT-BC255117  Poa confinis Peter H. Raven 1963-5-15 18372 Humboldt Dunes above coast, Lanphere Ranch just W of Mad River Slough, near Arcata Comment
  HSC10689  Poa confinis L. H. Myers 1963-5-3 49 Humboldt Sand dunes W of Lanphere's Rd., Mad River Slough area. Comment
  UC569487  Poa douglasii H. S. Yates 1936-6-18 5726 Humboldt near mouth Little River; Eureka Quadrangle 4 Comment
  UC665695  Poa douglasii H. E. Parks May, 1934 4805 Humboldt Little River Lagoon Comment
  RSA10144  Poa howellii Joseph P. Tracy 1926-5-15 7490 Humboldt Kneeland Prairie 762 Comment
  SEINET10660267  Poa kelloggii Harley P. Chandler Chandler 1183 Humboldt North Coast Ranges, California. 30 Comment
  CAS-BOT-BC254280  Poa macrantha Joseph P. Tracy 1933-5-20 12224 Humboldt Cape Mendocino, S of point of the Cape, near ocean shore 30 Comment
  SEINET10855123  Poa macrantha Huron H. Smith 1911-1 Smith 3852 A Humboldt Comment
  HSC10771  Poa pratensis R. V. Papike 1962-5-25 32 Humboldt Arcata. 91 Comment
  UC184172  Poa pratensis subsp. pratensis Joseph P. Tracy 1905-6-4 2186 Humboldt Eureka; Northern Coast Region 0 Comment
  UC187249  Poa pratensis subsp. pratensis Joseph P. Tracy 1911-6-25 3259 Humboldt Bucksport; Northern Coast Region, Humboldt Bay 0 Comment
  UC249872  Poa pratensis subsp. pratensis Joseph P. Tracy 1923-6-3 6254 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC10713  Poa secunda subsp. secunda G. N. Bos 1965-5-15 269 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  HSC10786  Poa secunda subsp. secunda A. H. Murphy 1951-4-18 18 Humboldt Tooby and Prior Ranch, Blocksberg. 457 Comment
  UC180501  Poa secunda subsp. secunda Joseph P. Tracy 1913-6-14 4121 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC184105  Poa secunda subsp. secunda Joseph P. Tracy 1912-7-31 3916 Humboldt near summit Buck Mt; Northern Coast Ranges 1676 Comment
  UC180504  Poa trivialis Joseph P. Tracy 1914-7-4 4521 Humboldt near Korbel (on Bald Mt rd); Northern Coast Ranges 457 Comment
  SEINET200571 Image available Poaceae Joseph P. Tracy 1926-6-12 7587 Humboldt Near Orick ,at Davison's Ranch . shady moist ground, Introduced. Comment
  JEPS69885  Polemonium carneum Joseph P. Tracy 1928-5-20 8440 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  CHSC23080  Polygala californica Robert A. Schlising 1963-6-3 2581 Humboldt Coast Ranges. 3.5 miles north of Garberville. Comment
  SBBG93447  Polygala californica H. P. Chandler -Jun-1901 1328 Humboldt Hupa [Hoopa] Indian Reservation 152 Comment
  CAS-BOT-BC167572  Polygala cornuta var. cornuta Henry M. Pollard 1946-8-11 s.n. Humboldt Perch Creek, Orleans region Comment
  HSC99087  Polygala cornuta var. cornuta Cara Witte 2008-7-25 927 Humboldt Horse Mountain Botanical Area. At intersection of 6N36B and Forest Service Road 6N36A. 1355 Comment
  JEPS50540  Polygonum davisiae W. L. Jepson 1902-7-16 2053 Humboldt Trinity Summit 2133 Comment
  HSC56170  Polygonum douglasii G. L. Clifton, Griswold 1979-8-1 12063 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC99565  Polygonum douglasii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 230 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-BC414466  Polygonum douglasii Doris K. Kildale 1925-8-17 1231 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  SEINET3405782 Image available Polygonum douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt Trinity Summit; Gravelly slopes on Box Camp trail Comment
  JEPS79955  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1940-8-25 16707 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1222470  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1912-7-31 3941 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1676 Comment
  HSC37919  Polygonum paronychia Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  UCD100508  Polygonum paronychia Linda M. Barker 1976-5-13 1487 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCSB15544  Polygonum paronychia Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay. Comment
  HSC48864  Polygonum polygaloides subsp. kelloggii Brad Klipfel 1973-6-10 57 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CDA2925  Polygonum polystachyum T. C. Fuller 1961-9-27 7040 Humboldt Slope of bluff north above mouth of Redwood Creek, 1.5 miles west of Orick. 0 Comment
  UC672940  Polygonum sachalinense W. E. Peacock 1939-8-18 Humboldt near Fields Landing; Buhne Flat 9 Comment
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Jul 14 2016
  HSC54512  Polygonum spergulariiforme Overton, Butler 1979-7-23 9426 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC37827  Polypodium californicum Thomas W. Nelson, Jane Nelson 1976-2-21 2250 Humboldt Tish-Tang campground Comment
  POM118352  Polypodium glycyrrhiza Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UCD136882  Polypodium glycyrrhiza M. Wiesendanger 1928-4-7 902 Humboldt Redwood Highway, Lane's Redwood Flat, probably the Franklin K. Lane Grove. Comment
  UC667949  Polypodium glycyrrhiza Joseph P. Tracy 1936-3-8 14775 Humboldt along S Fork Eel River Miranda 121 Comment
  HSC95649  Polypodium scouleri Andrea Pickart 2002-4-5 40 Humboldt Lanphere Dunes 0 Comment
  JEPS93137  Polypodium scouleri M. Wetherwax 1992-5-20 2434 Humboldt coastal bluff s side of Wedding Rock; Patrick's Point State Park 30 Comment
  UCSB51220  Polypodium scouleri Almanza, Ed 1976-7-15 Humboldt Cemetary road, east of Hwy. 101, Trinidad 15 Comment
  CAS-BOT-BC233071  Polypogon interruptus Joseph P. Tracy 1927-7-16 8261 Humboldt Eureka 60 Comment
  CHSC10130  Polypogon monspeliensis Jerry Parker 1968-11-22 241 .1 Humboldt Mckinleyville beach, floor of vernal pond. Comment
  POM295444  Polypogon monspeliensis Lyman Benson 1929-7-16 1825 Humboldt Dyerville Ditch. Comment
  SEINET11681498  Polypogon monspeliensis H. P. Chandler 1901-1 1431 Humboldt Klamath River, North Coast Ranges 335 Comment
  UC519315  Polystichum Joseph P. Tracy 1933-10-15 13101 Humboldt along S Fork Eel River Miranda; North Coast Ranges 91 Comment
  UC1440056  Polystichum californicum Danin & H. G. Baker 1960-8-13 604 Humboldt ca. 2 mi n Dyerville (High Rock (w side of Eel River), along Ave. of Giants) Comment
  HSC70656  Polystichum imbricans subsp. curtum Gail Newton 1980-7-14 1533 Humboldt Near Deadman Ridge 1097 Comment
  CAS-BOT-BC76663  Polystichum munitum Doris K. Kildale 1928-12-30 6764 Humboldt Phillipsville Comment
  RSA693325  Polystichum munitum Anstruther Davidson 1923-8-11 17065 Humboldt Scotia - Redwood Forest Comment
  SEINET4555667 Image available Polystichum munitum Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15049 Humboldt 20 miles north of Eureka. Comment
  UC519316  Polystichum munitum Joseph P. Tracy 1933-7-21 12813 Humboldt 5 mi e Carlotta (Riverside Auto Park on Van Duzen River); North Coast Ranges 60 Comment
  UC176664  Populus trichocarpa Joseph P. Tracy 1913-6-22 4261 B Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC249560  Populus trichocarpa Joseph P. Tracy 1922-10-8 6123 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  UC275527  Populus trichocarpa Joseph P. Tracy 1923-3-25 6167 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  SBBG88770  Potamogeton natans A. Keedy 1988-9-20 12 Humboldt off Alder Grove Rd, N of Arcata, near Hwy 299, Arcata Salt Marsh Project Comment
  UC1103513  Potamogeton natans Joseph P. Tracy 1928-9-2 8498 Humboldt Fruitland 609 Comment
  UC176375  Potamogeton natans Joseph P. Tracy 1913-9-9 4406 Humboldt near mouth of Little River; Northern Coast Ranges 3 Comment
  CAS-BOT-BC143077  Potentilla anserina subsp. pacifica L. R. Abrams 1916-7-18 6130 Humboldt Arcata to Trinidad Comment
  RSA12434  Potentilla gracilis Carl B. Wolf 1934-7-2 5859 Humboldt 5.5 miles from Bald Mt. on road to Snow Camp 915 Comment
  HSC56414  Potentilla gracilis var. fastigiata Griswold, Butler 1979-7-11 7064 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC99485  Potentilla gracilis var. gracilis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 144 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
  HSC49151  Proboscidea louisianica Garry Markegard 1979-9-11 Humboldt Along Bald Hills Rd. ca. 400 ft. N of the Rd. between Williams Ridge and Cagle Ridge at old stage stop ca. 12 mi. from Jct. with State Route 101, Simpson property, Mr. Emmss caretaker, adjacent to vegetable garden. Comment
  HSC49800  Prosartes smithii R. York 1979-4-9 214 Humboldt Behind HSU campus, by trail Comment
  HSC14310  Prunella vulgaris H. E. Parks, J. P. Tracy 1930-9-14 7700 Humboldt Vicinity of Bayside Comment
  UC902030  Prunella vulgaris var. lanceolata Joseph P. Tracy 1949-8-4 18421 Humboldt Mud Springs Trinity Summit; , Mud Springs 1341 Comment
  RSA34246  Prunella vulgaris var. lanceolata L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  UC153993  Prunella vulgaris var. lanceolata Joseph P. Tracy 1909-8-29 3081 Humboldt Humboldt Hill; Northern Coast Region, region about Humboldt Bay, Humboldt H 0 Comment
  UC1321005  Prunella vulgaris var. vulgaris Andrew P. Nelson 1960-1 629 -2 Humboldt Comment
  RSA46915  Prunus emarginata Doris K. Kildale 1926-9-5 2620 Humboldt On trail between Goat Camp and Red Peak, Lassack's Peaks 1677 Comment
  UC492200  Prunus emarginata Joseph P. Tracy 1932-7-15 10603 Humboldt Ridges e of Corral Prairie (Trintiy Summit, Klamath Mountains); Klamath Mountains, Trintiy Summit 1828 Comment
  HSC5685  Pseudognaphalium californicum J. P. Tracy 1937-7-11 15415 Humboldt Vicinity of Garberville 122 Comment
  POM288759  Pseudognaphalium californicum Lyman Benson 1928-7-11 458 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  CAS-BOT-BC357270  Pseudognaphalium microcephalum Hubert O. Jenkins 1943-8-1 s.n. Humboldt In dry rocky bed of Eel River, Richardson Grove Comment
  UC164851  Pseudognaphalium ramosissimum Joseph P. Tracy 1909-9-19 3095 Humboldt sand dunes of ocean beach at Humboldt Bay; Northern Coast Region, Humboldt Bay Comment
  HSC35014  Pseudognaphalium stramineum Thomas W. Nelson, James Nelson 1974-9-15 1714 Humboldt W of Fairhaven, Samoa Peninsula Comment
  HSC74454  Pseudognaphalium thermale Gail Newton 1980-8-10 2008 Humboldt Near Blake Mtn. 1798 Comment
  HSC74451  Pseudotsuga menziesii var. menziesii Gail Newton 1980-8-10 1991 Humboldt Near Blake Mtn. 1798 Comment
  JEPS40519  Psilocarphus tenellus Lincoln Constance 1934-5-27 698 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  UC1103804  Psilocarphus tenellus J. P. Tracy 1903-8-9 1942 Humboldt immediate vicinity Euerka; Eureka 0 Comment
  UC1222914  Psilocarphus tenellus Joseph P. Tracy 1942-6-15 17118 Humboldt near Redcrest resort; Englewood 91 Comment
  CAS-BOT-BC72555  Pteridium aquilinum Ira L. Wiggins 1930-7-11 4684 Humboldt near Samoa Comment
  UC642279  Pteryxia terebinthina var. californica Joseph P. Tracy 1929-4-28 8549 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  SJSU909  Pyrola asarifolia J. W. Tilden 1946-6-21 1013 Humboldt Bluff Cr c. 1.5 mi above Klamath R Comment
  HSC44551  Pyrola crypta Brad Klipfel 1973-7-15 170 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS66563  Pyrola crypta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1584 Comment
  HSC44559  Pyrola picta Brad Klipfel 1973-7-15 178 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC100474  Pyrola picta Carl C. Marshall Jun 1886 294 Humboldt Pine Creek. Comment
  UCD47053  Quercus X morehus W. L. J. Jun-5 Jul 1903 2191 Humboldt Van Arsdale Ranch, Halker Valley region. Expedition of W.L. Jepson and W.W. Mott from Ukiah to southern Humboldt Co., via the Blue Rock Ridge and return via Fort Bragg. 457 Comment
  CAS-BOT-BC94309  Quercus garryana Henry M. Pollard 1944-9-1 s.n. Humboldt near Orleans Comment
  HSC43854  Quercus garryana Maralyn O'Meara 1974-7-17 550 Humboldt Kneeland Comment
  HSC48346  Quercus garryana Maralyn O'Meara 1974-7-11 527 Humboldt Kneeland, Barry Ridge Comment
  UC1193247  Quercus garryana P. Zinke 190 Humboldt 5 mi se Punta Enda; Lake Ridge at the Lake 579 Comment
  UC175930  Quercus garryana Joseph P. Tracy 1912-7-31 3930 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC535734  Quercus garryana Eleanor Armstrong 1934-6-15 1132 Humboldt Richardson Grove 121 Comment
  UC1135607  Quercus garryana R. Stahelin 1933-8-20 Humboldt Liscomb Hill Eureka Quad. Comment
  CAS-BOT-BC105169  Quercus kelloggii Doris K. Kildale 1930-4-13 9579 Humboldt Bridgeville 289 Comment
  JEPS37758  Quercus kelloggii W. L. Jepson 1903-6 2203 Humboldt Harris Ridge 1127 Comment
  UC54718  Quercus kelloggii P. E. Goddard 1901-7-12 64 Humboldt Hupa Comment
  UCD46702  Quercus kelloggii W. L. Jepson 1903-6-9 2203 Humboldt Harris Ridge. 1127 Comment
  OBI14233  Quercus sadleriana Carl B. Wolf 1937-8-13 9261 Humboldt North Coast Range, 12 mi E of Hoopa Valley on New road towards Trinity summit 1676 Comment
  UC1196511  Quercus sadleriana Joseph P. Tracy 1947-7-5 17798 Humboldt near Box Camp; Trinity Summit 1524 Comment
  NY353451  Ranunculus aquatilis var. hispidulus V. K. Chesnut 1888-7-10 s.n. Humboldt In stagnant ponds at Jarnigan's, on Mad River Comment
  JEPS93972  Ranunculus californicus Vernon Oswald 1998-4-16 8912 Humboldt n. end Trinidad State Beach (Elk Head, bluffs overlooking ocean) 30 Comment
  UC180239  Ranunculus flammula Joseph P. Tracy 1914-9-6 4614 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UC1537332  Ranunculus occidentalis Gordon H. True Jr. 1936-5-11 466 Humboldt 12 mi w Miranda (e slope of ridge); Elk Ridge 457 Comment
  SD90193  Ranunculus orthorhynchus var. orthorhynchus Benjamin C. Stone 1952-6-23 Humboldt Redwood Forest, wet open places on Coast Hwy. 101 20 miles south of Klamath 46 Comment
  UC1196245  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1933-7-11 12701 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CHSC1495  Ranunculus repens var. repens M. Underhill 1952-7-13 Humboldt 1 Comment
  HSC56212  Ranunculus uncinatus G. L. Clifton, Griswold 1979-8-2 12220 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1196266  Ranunculus uncinatus Joseph P. Tracy 1937-7-2 15404 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  HSC18195  Ranunculus uncinatus var. parviflorus E. W. Styskel 1963-5-19 40 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  HSC39793  Raphanus sativus Peter Sorensen 1976-6-8 Humboldt N Spit Comment
  UC592943  Rhamnus californica subsp. californica Carl B. Wolf 1931-8-31 Humboldt near Mouth of South Fork of Trinity River (on road to Sandy Bar Swimming Hole) 243 Comment
  UC912384  Rhamnus californica subsp. occidentalis Herbert L. Mason 1932-7-21 7109 Humboldt on road to Arcata to Weaverville (e slope of Southfork Mountains); Southfork Mountains Comment
  JEPS42055  Rhamnus purshiana Lincoln Constance 1934-6-19 917 Humboldt near Grasshopper Peak summit; South Fork Eel River, Bull Creek Region 914 Comment
  UC175733  Rhamnus purshiana Joseph P. Tracy 1912-9-1 3983 Humboldt Eureka Northern Coast Region 0 Comment
  UC668149  Rhamnus purshiana Joseph P. Tracy 1933-6-7 12525 Humboldt Bridgeville 198 Comment
  CAS-BOT-BC56611  Rhododendron macrophyllum Doris Kildale 1931-5-16 10694 Humboldt Camp 20, LBSJ Trinidad Comment
  HSC7882  Rhododendron macrophyllum V. G. Vieira 1963-5-4 21 Humboldt Essex Pond Comment
  UC1121090  Rhododendron macrophyllum A. E. Wieslander 1931-5-17 195 Humboldt Orick-Orleans Road Comment
  UC153962  Rhododendron macrophyllum Joseph P. Tracy 1906-6-10 2489 Humboldt Humboldt Bay Region, Kneeland Prairie Road Kneeland Prairie Road; Northern Coast Region, Humboldt Bay Region, Kneeland Prairie 609 Comment
  UCR275107  Rhododendron macrophyllum Charity A. Hartshorn 2016-5-14 35 Humboldt Arcata Community Forest 244 Comment
  SEINET11976085  Rhododendron occidentale H. P. Chandler 1901-1 1448 Humboldt Klamath 457 Comment
  UCSB18968  Rhododendron occidentale Jensen, Karen 1965-4-14 Humboldt Along U.S. Highway 101, 1 km. S of Trinidad 45 Comment
  HSC54518  Rhododendron occidentale var. paludosum Overton, Butler 1979-7-23 9443 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  POM89461A  Rhododendron occidentale var. paludosum L. R. Abrams 1922-6-25 8253 Humboldt Arcata. Comment
  CAS-BOT-BC433142  Ribes Doris K. Kildale 1927-5-13 3136 Humboldt Redwood Creek at Berry's 289 Comment
  HSC103230  Ribes binominatum Jade Paget-Seekins 2010-6-23 27 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  HSC99357  Ribes binominatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 6 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC92877  Ribes bracteosum Joseph P. Tracy 1938-8-14 16105 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
  UC161565  Ribes bracteosum Joseph P. Tracy 1911-6-4 3216 Humboldt 5 mi from coast; Northern Coast Region, Little River 121 Comment
  UC902060  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1945-5-10 17507 Humboldt on original Ricks Prairie Eureka 45 Comment
  HSC48834  Ribes lacustre Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 45 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC58055  Ribes lacustre G. L. Clifton, Griswold 1979-8-1 11921 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC97603  Ribes lacustre Cara Witte 2007-5-31 162 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  JEPS49366  Ribes lacustre P. E. Goddard 1901-7 125 Humboldt Trinity Summit Trail Comment
  UC902083  Ribes lacustre Joseph P. Tracy 1949-6-6 18300 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC97283  Ribes laxiflorum M. Mesler 2007-3-23 745 Humboldt Near Trinidad, trail from Mill Creek to Elk Head. 61 Comment
  UC1541294  Ribes lobbii W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  CAS-BOT-BC206043  Ribes menziesii Doris K. Kildale 1926-4-4 1724 Humboldt Trinidad Comment
  UC1198930  Ribes menziesii Joseph P. Tracy 1938-4-5 15707 Humboldt North Fork of Mad River (its eastern limit here) Mad River 304 Comment
  UC183753  Ribes roezlii Joseph P. Tracy 1913-3-9 4012 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  CAS-BOT-BC212520  Ribes sanguineum Joseph P. Tracy 1949-4-10 18281 Humboldt Redwood Creek at Berry's 365 Comment
  HSC100494  Ribes sanguineum Carl C. Marshall Apr 1885 135 Humboldt Near the coast everywhere. Comment
  HSC31648  Ribes sanguineum Timothy B. Devine 1974-5-4 313 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC33053  Ribes sanguineum Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1241 Humboldt Horse Mtn. area 1220 Comment
  HSC71795  Ribes sanguineum Gail Newton 1980-6-16 172 Humboldt Near Monks Camp. 1097 Comment
  RSA0019531  Ribes sanguineum R. D. Zortman 1963-4-7 17 Humboldt 5 miles NE of Arcata; south of the Mad River, off Warren Creek Rd. 91 Comment
  CAS-BOT-BC144684  Ribes sanguineum var. glutinosum Doris K. Kildale 1926-3-25 1624 Humboldt Liscom Hill. lower Mad River 30 Comment
  HSC100719  Ribes viscosissimum Carl C. Marshall Jun 1886 325 Humboldt Trinity Summit. Comment
  HSC69840  Romanzoffia californica R. Kalal 1979-5-6 52 Humboldt Trinidad Head 30 Comment
  UC144104  Romanzoffia californica Joseph P. Tracy 1909-5-16 2970 Humboldt near Trinidad; Northern Coast Ranges 60 Comment
  HSC74755  Rorippa curvisiliqua Gail Newton 1981-8-6 2399 Humboldt Near Humbug Creek 1256 Comment
  CAS-BOT-BC74508  Rorippa curvisiliqua Malcom A. Nobs; S. Galen Smith 1949-8-9 1238 Humboldt On southern side of the town of Blue Lake. Comment
  UC161485  Rorippa curvisiliqua J. P. Tracy 1906-7-1 2519 Humboldt vicinity Eureka; vicinity Eureka 0 Comment
  CHSC19514  Rorippa nasturtium-aquaticum J. F. Knezevich 1968-5-14 433 Humboldt Collected 13 miles south of Ferndale at Cape Mendocino. -15 Comment
  JEPS53810  Rorippa nasturtium-aquaticum Lincoln Constance 1934-5-29 735 Humboldt Upper Look Prairie , South Fork Eel River, Upper Look Prairie (Bull Creek Region) 365 Comment
  UCD115322  Rorippa palustris Joseph P. Tracy; H. E. Parks 1931-5-17 9425 Humboldt Trinity River near Willow Creek. 152 Comment
  JEPS47243  Rosa Lincoln Constance 1934-5-26 654 Humboldt S. end of Dyerville Bridge South Fork Eel River, Bull Creek Region (s bank of river) Comment
  POM161058  Rosa californica Joseph P. Tracy 1923-9-16 6550 Humboldt Trinity River Valley, Near the south fork Comment
  HSC45400  Rosa gymnocarpa Thomas W. Nelson, Jane P. Nelson 1977-7-1 3571 Humboldt Along N side of ridge between Bear and Blanket Creeks 1494 Comment
  RSA67383  Rosa gymnocarpa Philip A. Munz 1951-9-17 16995 Humboldt 1 mile S of Pepperwood Comment
  CAS-BOT-BC146833  Rosa nutkana M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  HSC19622  Rosa nutkana W. R. Brigham 1962-5-20 27 Humboldt Side of Old Hwy. 101, N of Big Lagoon rd. Comment
  UC14149  Rosa nutkana var. nutkana E. Ethel Tracy 1901-9-5 1278 Humboldt Eureka Comment
  UC180188  Rosa nutkana var. nutkana Joseph P. Tracy 1914-5-30 4479 Humboldt Alton Northern Coast Region (same locality as Tracy #40000) 30 Comment
  UC154203  Rosa pisocarpa Joseph P. Tracy 1908-6 2873 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC148224  Rosa spithamea Doris K. Kildale; L. B. Kildale 1930-5-24 9549 Humboldt Hoopa Valley 152 Comment
  UC162328  Rosa spithamea Joseph P. Tracy 1911-7-11 3514 Humboldt hillside on Supply Creek Northern Coast Ranges, Hoopa Valley 182 Comment
  HSC99891  Rubus armeniacus Bill Wood 2011-8-19 Humboldt Eureka; corner of Myrtle Ave. and Bettie Lane Comment
  CAS-BOT-BC156579  Rubus bifrons Henry M. Pollard 1948-8-9 s.n. Humboldt Near Orleans Comment
  RSA43337  Rubus laciniatus H. M. Pollard 1948-8-9 s.n. Humboldt New [near] Orleans. Comment
  JEPS47293  Rubus lasiococcus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9021 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC57010  Rubus leucodermis Overton, Butler 1979-7-24 9603 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC69888  Rubus leucodermis Thomas W. Nelson, Jane P. Nelson 1977-7-30 3664 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  HSC58061  Rubus parviflorus G. L. Clifton, Griswold 1979-8-1 11937 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC95871  Rubus parviflorus Will Ferrand 2001-6-17 16 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  HSC97599  Rubus parviflorus Steven 2004-4-26 28 Humboldt From Old Arcata Rd. go E on Jacoby Creek Rd. Comment
  OBI35883  Rubus parviflorus David J. Keil 1983-7-1 17292 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  SEINET5265376  Rubus parviflorus Unknown 1938-8-6 15397 Humboldt Eureka Comment
  CAS-BOT-BC156723  Rubus spectabilis Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  CHSC13518  Rubus spectabilis A. R. Morrison 1974-4-27 Humboldt Ca. 1.5 mi. off Hwy. 101 on Westhaven Rd., Trinidad. 45 Comment
  HSC19677  Rubus spectabilis D. K. Smith 1968-3-3 10 Humboldt On West End Rd., ca. 3 mi. from Hwy. 299 Comment
  HSC19685  Rubus spectabilis Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC19686  Rubus spectabilis D. E. Anderson 1962-2-10 1914 Humboldt 1.0 mi. S of Big Lagoon school along abandoned stretch of Hwy. 101 Comment
  POM271104  Rubus spectabilis Lyman D. Benson 1929-7-15 1812 Humboldt Clam Beach, Trinidad. 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
  CHSC59812  Rubus ursinus Mary Sacks 1977-4-8 3 Humboldt South end of Patrick's Point State Park, ca 0.2 mi west of Hwy 101 and 5 mi north of Trinidad. 60 Comment
  UC1223160  Rudbeckia occidentalis Joseph P. Tracy 1948-9-12 18204 Humboldt meadow at Box Camp; Trinity Summit 1463 Comment
  RSA167402  Rudbeckia occidentalis Joseph P. Tracy 1948-9-12 18204 Humboldt Box Camp; Trinity Summit. 1463 Comment
  RSA20785  Rudbeckia occidentalis C. B. Wolf 1937-8-13 9250 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit 1524 Comment
  SEINET5710897  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  HSC95647  Rumex acetosella Andrea Pickart 2002-4-3 36 Humboldt Samoa Dunes, Eureka airport. 15 Comment
  RSA280496  Rumex conglomeratus Lyman Benson 1998-7-11 s.n. Humboldt Weott Ranger Station, Seaward N Coast, S fork Eel. 61 Comment
Read comments
Aug 16 2013
  UC672926  Rumex occidentalis Joseph P. Tracy 1932-7-20 10730 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC433704  Rumex occidentalis Doris Kildale Gillespie 1931-6-7 10651 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC44841  Rupertia physodes Thomas W. Nelson, Jane P. Nelson 1977-7-1 3573 Humboldt Along road 2S08 below Goat Hill 1524 Comment
  UC1100023  Ruppia maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1181 Humboldt ca 4 mi s Eureka (on Highway 101, near mouth of Elk River) Comment
  UC1103257  Rytidosperma penicillatum Mrs. Wm. Grotzman 1941-6-16 Humboldt Bayside Golf Links 30 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
  RSA91846  Rytidosperma penicillatum F. W. Peirson 1941-7-28 13113 Humboldt at Patrick's Point State Park Comment
  UC1103532  Sagina apetala Joseph P. Tracy 1946-6-23 17598 Humboldt roadside near Dan McBride place Kneeland Prairie 762 Comment
  HSC32142  Sagina saginoides D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5609 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  POM318824  Salicornia Patricia Wilder 1968-8-21 4416 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  CHSC72212  Salicornia virginica Vernon H. Oswald 1998-9-2 9562 Humboldt Humboldt Bay NWR south of Eureka, Hookton Slough Trail on the levee along the south side of Hookton Slough. 0 Comment
  POM214872  Salix exigua Carleton R. Ball, Harold E. Parks, Joseph P. Tracy 1932-5-17 1336 Humboldt Above Trinity River. 1 mile below bridge on Trinity Hwy. 152 Comment
  HSC97547  Salix exigua var. hindsiana Ivy Watson 2008-9-11 4 Humboldt Blue Lake, 300 m downstream of the Hatchery Rd. bridge, N bank 22 Comment
  LA208688  Salix exigua var. hindsiana Harold E. Parks; 1931-5-14 958 Humboldt Fernbridge, Eel River 10.0 Comment
  SBBG29091  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1335 Humboldt above Trinity River, 1 mi below bridge on Trinity Hwy 152 Comment
  SBBG58915  Salix exigua var. hindsiana H. E. Parks 1931-5-14 958 Humboldt Fernbridge, Eel River 10 Comment
  CAS-BOT-BC104094  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0969 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104110  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01332 Humboldt channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107679  Salix hookeriana Doris K. Kildale 1926-7-18 2389 Humboldt Near mouth of Redwood Creek 15 Comment
  CAS-BOT-BC107708  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Fortuna, on banks of Eel River 10 Comment
  CAS-BOT-BC107737  Salix hookeriana Jim Davis 1933-4-25 4 Humboldt Around Eureka Comment
  CAS-BOT-BC107757  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt Sand dunes, near Samoa, on Humboldt Bay 6 Comment
  CHSC9655  Salix hookeriana E. L. Smith 1971-8-18 1025 A Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  CHSC9656  Salix hookeriana E. L. Smith 1971-8-18 1026 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  CHSC96715  Salix hookeriana Gordon Leppig 2005-4-8 2211 Humboldt Humboldt Bay Dunes and Wetlands. Eureka, swamp at west end of W. Hawthorne St. NAD 27 UTM Zone 10, 4515862 N, 400315 E. 3 Comment
  HSC19956  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-5 1103 Humboldt Little River Lagoon Comment
  HSC19964  Salix hookeriana H. E. Parks 1931-3-24 915 Humboldt Vicinity of Trinidad R.R. Station Comment
  HSC19967  Salix hookeriana J. R. Woodside 1963-2-17 45 Humboldt 1.25 mi. N of Fairhaven Comment
  HSC19969  Salix hookeriana H. E. Parks Sep 1931 1057 Humboldt Trinidad 76 Comment
  JEPS12927  Salix hookeriana Joseph P. Tracy 1931-5-3 9356 Humboldt near Luffenholz Creek (near ocean); Northern Coast Region, Trinidad 60 Comment
  RSA239712  Salix hookeriana Larry E. DeBuhr 1973-4-23 995 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  RSA342503  Salix hookeriana Robert F. Thorne, Percy C. Everett 1965-8-9 35299 Humboldt Big Lagoon. 3 Comment
  UC1173588  Salix hookeriana Joseph P. Tracy 1937-7-27 15508 Humboldt Lindsay Creek Mad River (mouth) 15 Comment
  UC1225773  Salix hookeriana Joseph P. Tracy 1948-4-4 17960 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC146207  Salix hookeriana J. P. Tracy 1905-4 2392 /2168 Humboldt Immediate vicinity of Eureka 0 Comment
  UC146209  Salix hookeriana J. P. Tracy 1905-11-5 2399 Humboldt Immediate vicinity of Eureka 0 Comment
  UC176176  Salix hookeriana Joseph P. Tracy 1913-9-21 4413 Humboldt Humboldt Bay Northern Coast Region (dunes of ocean beach) Comment
  UC469112  Salix hookeriana Joseph P. Tracy 1931-8-23 9620 Humboldt sand dunes near Samoa; Northern Coast Region, on Humboldt Bay 6 Comment
  UC469118  Salix hookeriana Joseph P. Tracy 1931-9-20 9686 Humboldt Little River Northern Coast Ranges (mouth, edge of sand dunes) 6 Comment
  UC469123  Salix hookeriana Joseph P. Tracy 1927-9-25 8381 Humboldt Still place Northern Coast Region, around Humboldt Bay (adjacent to swamp) 6 Comment
  UC470432  Salix hookeriana Joseph P. Tracy 1927-11-13 8393 Humboldt Little River Northern Coast Region, around Humboldt Bay (sand dunes at mouth) 6 Comment
  UC470438  Salix hookeriana Joseph P. Tracy 1931-9-19 9674 Humboldt on Van Duzen R. Alton; Northern Coast Region, , Van Duzen R. 30 Comment
  UC470443  Salix hookeriana Joseph P. Tracy 1931-9-19 9676 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC492330  Salix hookeriana Harold E. and Susan T. Parks 1932-4-3 1100 Humboldt Little R. Lagoon Trinidad; , Little River Lagoon Comment
  UC506505  Salix hookeriana Joseph P. Tracy 1932-8-27 10753 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC512001  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1236 Humboldt Blue Slide Van Duzen River 91 Comment
  UC512004  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1231 Humboldt 1 1/2 mi e Alton (floodplain of Van Duzen R.) 30 Comment
  UC512082  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1223 Humboldt 1 mi n Samoa (pine barrens near the coast) Comment
  UC512090  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1217 Humboldt 1 mi s Samoa (pine barrens near coast) Comment
  HSC104061  Salix hookeriana M. F. Norman 2015-4-11 2 Humboldt Arcata, Ma-le'l Dunes Comment
  UC1173620  Salix hookeriana Joseph P. Tracy 1936-2-23 14772 Humboldt Fortuna Eel River 15 Comment
  UCSB10870  Salix lasiandra Parks, Harold; Parks, Susan 1931-8-15 Humboldt Blue Slide, Van Duzen River 100 Comment
  UC519383  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1933-5-14 12179 Humboldt at Willow Creek bridge Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC125220  Salix lasiandra var. lasiandra Joseph P. Tracy 1933-7-16 12772 Humboldt South Fork Mountain; at McKay Camp 1676 Comment
  CAS-BOT-BC125228  Salix lasiandra var. lasiandra Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01206 Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad, elevation approximately sea level Comment
  CAS-BOT-BC128196  Salix lasiandra var. lasiandra Doris K. Kildale 1926-3-7 1528 Humboldt Stephen's Grove, river bar - South Fork of Eel River 60 Comment
  CAS-BOT-BC107589  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1318 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107602  Salix lasiolepis Joseph P. Tracy; Harold E. Parks 1933-3-19 11005 Humboldt On Van Duzen River, 2 miles west of Bridgeville 228 Comment
  CAS-BOT-BC107614  Salix lasiolepis Harold E. Parks 1933-2-26 10912 Humboldt Miranda, south fork of Eel River 121 Comment
  CAS-BOT-BC107621  Salix lasiolepis Doris K. Kildale 1929-3-10 6935 Humboldt Bug Creek - Chaparral Mt. Comment
  HSC20023  Salix lasiolepis J. P. Tracy 1933-2-26 10912 Humboldt Miranda, S Fork of Eel River 122 Comment
  JEPS14764  Salix lasiolepis Joseph P. Tracy 1932-8-27 10753 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  JEPS14772  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt on Trinity Hwy. Berry's Mt. (e of Redwood Creek); Northern Coast Ranges 762 Comment
  POM161044  Salix lasiolepis Joseph P. Tracy 1926-8-12 7758 Humboldt Redwood Creek. At Berry's. Comment
  SD894  Salix lasiolepis Harold E. Parks 1931-5-14 963 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC275524  Salix lasiolepis Joseph P. Tracy 1923-4-15 6189 Humboldt Redwood Creek, at Berry's 274 Comment
  UC506378  Salix lasiolepis Joseph P. Tracy 1932-10-2 10858 Humboldt near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC512007  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1233 Humboldt 1 1/2 mi E of Alton ( Van Duzen River) 30 Comment
  UC512025  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1333 Humboldt near bridge on Trinity Highway (foot of bank); Trinity River 152 Comment
  UC512040  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1322 Humboldt at Berry's Redwood Creek (on Trinity Hwy.) 274 Comment
  UC519330  Salix lasiolepis Joseph P. Tracy 1933-5-20 12266 Humboldt Mattole River, near Petrolia 15 Comment
  UCD111584  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-13 01255 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road. Comment
  CAS-BOT-BC107411  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-3-20 2907 Humboldt Stephens Grove on South Fork of Eel River 60 Comment
  POM214864  Salix lasiolepis var. sandbergii H. E. Parks, Joseph P. Tracy 1933-3-19 11005 Humboldt On Van Duzen River. 2 miles E of Bridgeville. 229 Comment
  POM219560  Salix lucida subsp. lasiandra H. E. Parks 1931-3-24 911 Humboldt Fortuna. Eel River. 10 Comment
  RSA298153  Salix lucida subsp. lasiandra Thomas W. Nelson 1978-4-23 3888 Humboldt At jct of Copher and Samoa Rds. N of Samoa. Comment
  CAS-BOT-BC125616  Salix melanopsis W. R. Dudley 1899-6-21 s.n. Humboldt At the junction of the North and South forks of Eel River Comment
  CAS-BOT-BC125627  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  RSA47086  Salix melanopsis Doris K. Kildale 1926-9-9 2690 Humboldt Low gap of Mod River. Comment
  SBBG57931  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy, 6 km S of Alton Comment
  SD978  Salix melanopsis Harold E. Parks 1931-5-14 961 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC1196571  Salix melanopsis Joseph P. Tracy 1932-7-31 10293 Humboldt Eel R. at mouth of Larrabee Creek; Northern Coast Ranges, Eel R. 60 Comment
  UC469446  Salix melanopsis Joseph P. Tracy 1931-5-3 9343 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC490562  Salix melanopsis Joseph P. Tracy 1932-5-1 9875 Humboldt vicinity of R. Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  UC512009  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1234 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  UC519360  Salix melanopsis Joseph P. Tracy 1933-6-7 12512 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC55408  Salix melanopsis Harley P. Chandler June, 1901 1519 Humboldt North Coast Ranges, Klamath R. 426 Comment
  UC212993  Salix purpurea Joseph P. Tracy 1919-5-25 5137 Humboldt Ryan's Slough Northern Coast Ranges, Humboldt Bay, Ryan's Slough 15 Comment
  CAS-BOT-BC129137  Salix scouleriana Joseph P. Tracy 1932-7-20 10738 Humboldt Trail below Corral Prairie - Trinity Summit, Klamath Mountains 1371 Comment
  JEPS12911  Salix scouleriana Joseph P. Tracy 1927-3-27 7846 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS14778  Salix scouleriana Joseph P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  JEPS38418  Salix scouleriana W. L. Jepson 1932-7-27 16426 Humboldt Bull Creek 106 Comment
  SBBG28831  Salix scouleriana H. E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  UC275521  Salix scouleriana Joseph P. Tracy 1924-7-4 6716 Humboldt at Hungry Hollow Bald Mt.; Northern Coast Ranges 762 Comment
  UC481353  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt pine barrens Samoa; Humboldt Bay, Samoa Comment
  UC512088  Salix scouleriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1219 Humboldt pine barrens near coast 1 mi. n. Samoa Comment
  POM219690  Salix sessilifolia H. E. Parks 1931-5-14 961 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  HSC20100  Salix sitchensis J. P. Tracy 1933-3-19 10930 Humboldt Blue Slide, Van Duzen River 91 Comment
  JEPS14748  Salix sitchensis Joseph P. Tracy 1932-8-11 10340 Humboldt N. Yager Creek Northern Coast Ranges 304 Comment
  JEPS38498  Salix sitchensis Milo S. Baker 1923-7-23 89 Humboldt Manning Creek Comment
  UC146204  Salix sitchensis Joseph P. Tracy 1904-3-6 2001 Humboldt immediate vicinity of Eureka 0 Comment
  UC506372  Salix sitchensis Joseph P. Tracy 1933-5-7 12154 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UC526722  Salix tracyi Joseph P. Tracy 1934-3-25 13166 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC44536  Sambucus nigra subsp. caerulea Brad Klipfel 1973-7-1 144 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UCSB16744  Sambucus racemosa var. racemosa Muller, Katherine 1954-6-20 Humboldt 3 mi. S. of Scotia Comment
  UC1197112  Sanicula arctopoides J. P. Tracy 1899-4-9 303 Humboldt immediate vicinity of Eureka (at Bucksport); Bucksport 0 Comment
  UC642286  Sanicula arctopoides Joseph P. Tracy 1927-6-8 8110 Humboldt Trinidad 3 Comment
  UC1197095  Sanicula graveolens Joseph P. Tracy 1926-5-2 7448 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  CHSC88615  Sanicula tracyi Linnea Hanson 1993-7-21 346 Humboldt Six Rivers National Forest. Mad River Rock Road. Comment
  UC1197075  Sanicula tuberosa Joseph P. Tracy 1925-5-30 7037 Humboldt Northern Coast Ranges, Laribee Valley Laribee Valley; Northern Coast Ranges, Laribee Valley 701 Comment
  HSC101026  Sanicula tuberosa Jenny Moore 2007-6-14 29 Humboldt Pilot Creek Watershed, west of South Fork Mountain, Dan East Trail (5E14). 976 Comment
  UC1197327  Sanicula tuberosa Joseph P. Tracy 1930-6-21 8780 Humboldt Northern Coast Ranges, Laribee Valley Laribee Valley; Northern Coast Ranges, Laribee Valley 792 Comment
  JEPS62819  Satureja douglasii Lincoln Constance 1934-5-24 634 Humboldt forest bordering e side Lower Look Prairie; Bull Creek Region, South Fork Eel River 121 Comment
  HSC70985  Saxifragopsis fragarioides Gail Newton 1980-7-22 1657 Humboldt Near Devils Backbone 1554 Comment
  RSA53822  Schoenoplectus tabernaemontani Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  HSC102057  Scirpus microcarpus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 962 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC1100832  Scirpus microcarpus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1198 Humboldt marsh and bog land at the southern outskirts Eureka; southern outskirts Eureka Comment
  POM292611  Scoliopus bigelovii Lyman Benson 1927-7-12 818 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  HSC100444  Scorzonella procera Carl C. Marshall Jul 1886 263 Humboldt Bald Hills. Comment
  JEPS11415  Scrophularia californica Lincoln Constance 1934-5-26 684 Humboldt s end of Dyerville Bridge; Bull Creek Region, South Fork Eel River 45 Comment
  UC582593  Scrophularia californica Joseph P. Tracy 1933-8-22 12980 Humboldt Eureka 6 Comment
  CDA41981  Scrophularia californica T. C. Fuller 1961-9-28 7058 Humboldt 1.5 miles south of Samoa. 0 Comment
  CHSC85574  Scutellaria antirrhinoides L. P. Janeway 2003-7-30 7940 Humboldt High North Coast Ranges. Cold Spring; 0.6 km north of the top of Titlow Hill. 1454 Comment
  HSC97100  Scutellaria antirrhinoides Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 4 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1364 Comment
  UC1239704  Scutellaria antirrhinoides Joseph P. Tracy 1912-7-26 3851 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC175792  Scutellaria antirrhinoides Joseph P. Tracy 1912-7-21 3760 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC175798  Scutellaria antirrhinoides Joseph P. Tracy 1912-7-26 3842 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC249516  Scutellaria tuberosa Joseph P. Tracy 1922-4-30 6005 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC103086  Sedum laxum subsp. flavidum Sydney Carothers 2014-6-22 8 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  HSC79258  Sedum laxum subsp. flavidum D. K. Imper 1983-7-13 Humboldt Six Rivers National Forest, Sims Mtn. next to FS 4N01, 1 1/4 mi. S of Sugarloaf Mtn. 1280 Comment
  HSC98999  Sedum laxum subsp. laxum Cara Witte 2007-6-19 294 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38 1220 Comment
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Aug 17 2011
  HSC63231  Sedum obtusatum subsp. retusum M. A. Baker 1979-7-10 Humboldt 9.5 km E of Berry Summit along Hwy. 299 or Willow Creek, N bank of Willow Creek Comment
  CAS-BOT-BC63826  Sedum spathulifolium Elizabeth Parsons Hawyer 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC63827  Sedum spathulifolium L. R. Abrams 1922-6-25 8294 Humboldt Bluffs north of Big Lagoon. Comment
  CAS-BOT-BC63825  Sedum spathulifolium Doris K. Kildale 1927-5-15 3171 Humboldt Petralia. Mattole River. Comment
  UCD135986  Selaginella kraussiana Frederic Hrusa; R. Bencie, L. Bencie, C. and E. Dogwin 2010-12-29 18277 Humboldt Forest E of Humboldt St. University; above Fern Lake. 47 Comment
  CAS-BOT-BC69740  Selaginella wallacei Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UC1118079  Senecio glomeratus H. S. Yates 1936-6-18 5735 Humboldt 2 mi n Big Lagoon; Rocky Pt Quad. 30 Comment
  HSC48867  Senecio integerrimus Brad Klipfel 1973-6-10 62 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC363808  Senecio integerrimus var. exaltatus Doris K. Kildale 1926-4-11 1763 Humboldt McLellan Mountain 822 Comment
  UCD135609  Senecio minimus John M. Tucker 1948-9-4 1863 Humboldt Beck's Ranch, Hydesville. Comment
  CAS-BOT-BC364221  Senecio sylvaticus W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  HSC34816  Senecio vulgaris Dryden 1975-4-20 123 Humboldt Arcata 0 Comment
  SEINET11802700  Senecio vulgaris J. P. Tracy 1943-1 17454 Humboldt Eel River Bar at mouth of Van Duzen, near Alton Comment
  NY64469  Sequoia sempervirens J. D. Mastrogiuseppe 11 1966 s.n. Humboldt Founder's Grove, Humboldt Redwoods State Park Comment
  SEINET11739295  Sequoia sempervirens R. J. Mastrogiuseppe 1966-1 s.n. Humboldt Founders' Grove, Humboldt Redwoods State Park Comment
  HSC92497  Sherardia arvensis W. L. Jepson 1934-5-7 Humboldt Buckeye Praire, Bull Creek Comment
  CAS-BOT-BC205568  Sidalcea malachroides Doris K. Kildale 1927-7-2 3628 Humboldt Lord-Ellis road Comment
  CAS-BOT-BC205570  Sidalcea malachroides A. M. Vollmer; L. Beane 1951-6-11 136 Humboldt Yager Creek Road, on way to Carlotta Comment
  CAS-BOT-BC205578  Sidalcea malachroides Doris K. Kildale 1928-5-27 5935 Humboldt Kneeland Prairie 853 Comment
  UC203995  Sidalcea malachroides Joseph P. Tracy 1918-7-1 4964 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River from South Fork to Scotia 60 Comment
  HSC35615  Sidalcea malviflora Thomas W. Nelson, B. Reinhardt 1975-7-30 2111 Humboldt Whiting Spring Comment
  UC146164  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1908-6 2813 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 457 Comment
  UC668144  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1936-8-2 15062 Humboldt French Camp Ridge 1066 Comment
  HSC75946  Sidalcea malviflora subsp. nana Overton, Butler 1979-7-24 9725 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC48418  Sidalcea malviflora subsp. nana J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9924 Humboldt Hwy. 36 at Camp Creek Rd. 76 Comment
  HSC98003  Sidalcea malviflora subsp. nana Cara Witte 2007-7-25 582 Humboldt Forest Service Road 5N10. Approximately 1/2 mile north of intersection with Forest Service Road 5N10C. 1270 Comment
  JEPS67257  Sidalcea oregana subsp. eximia Joseph P. Tracy 1917-9-1 4831 Humboldt Murphy meadow Northern Coast Range, , Murphy meadow (Bald Mountain) 1066 Comment
  UC146131  Sidalcea oregana subsp. eximia Joseph P. Tracy 1907-6-25 2578 Humboldt in valley of Elk River Northern Coast Region, region about Humboldt Bay (region about Humboldt Bay) 0 Comment
  UC146134 Image available Sidalcea oregana subsp. eximia Joseph P. Tracy 1907-6-25 2578 Humboldt valley of Elk River Northern Coast Region, region about Humboldt Bay 0 Comment
  UC668141  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-7-16 15432 Humboldt Dow's Prairie 60 Comment
  HSC102530  Sidalcea oregana subsp. oregana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1517 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC71746  Silene M. A. Baker 1980-6-26 2430 Humboldt Near Sims Creek 610 Comment
  UC14437  Silene antirrhina Chestnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC99084  Silene bernardina Cara Witte 2008-8-6 1014 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  HSC82112  Silene bolanderi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5256 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  UC668100  Silene californica Joseph P. Tracy 1935-6-23 13997 Humboldt French Camp Ridge 1066 Comment
  RSA12455  Silene californica C. B. Wolf 1934-6-30 5838 Humboldt 7 miles from Shelter Cove on road to Briceland. 152 Comment
  UC465675  Silene californica P. E. Goddard 1907-5-29 f 101 Humboldt Van Duzen Comment
  HSC56992  Silene campanulata Overton, Butler 1979-7-24 9559 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  UC8432  Silene campanulata subsp. campanulata Bolander 1866-1 6517 Humboldt Red Mountain Comment
  RSA135349  Silene campanulata subsp. glandulosa Volney Rattan 1883 Humboldt Hoopa Valley. Comment
  HSC39236  Silene gallica D. E. Anderson, J. P. Smith 1971-6-28 - 1267 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC40965  Silene gallica Linda M. Barker 1976-6-14 1593 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC387077  Silene gallica Doris K. Kildale 1928-5-30 6037 Humboldt mouth of Lindsey Creek Comment
  HSC79457  Silene laciniata subsp. californica Kenneth Clark 1980-6-14 665 Humboldt On western slope above Dead Man's Gulch (near parking access) 145 Comment
  RSA311326  Sisyrinchium californicum Robert F. Thorne 1957-9-3 19018 Humboldt Patricks Point State Park. Comment
  SD42554  Sisyrinchium californicum Carl B. Wolf 1937-8-10 2899 Humboldt Big Lagoon, bog at State Park. 6 Comment
  UC666972  Smilacina stellata Joseph P. Tracy 1933-6-13 12569 Humboldt near summit on road from Hoopa westward to Bair's; Hoopa Mountain 1066 Comment
  RSA377726  Smilacina stellata var. sessilifolia Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  UC1196158  Solanum sarrachoides J. P. Tracy Sept. 1907 2605 Humboldt immediate vicinity of Eureka 0 Comment
  UC1196152  Solanum umbelliferum Joseph P. Tracy 1935-7-20 14325 Humboldt head of Devil's Hole (Trinity Summit); , Devil's Hole 1828 Comment
  UC577352  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15316 Humboldt Bridgeville 198 Comment
  POM318722  Solidago elongata Patricia Wilder 1968-8-21 4389 Humboldt Edge of bog in Big Lagoon Park, just west of US 101; Coast Range; Big Lagoon to Pacific Ocean drainage. 2 Comment
  UC1070251  Solidago elongata H. L. Person 1932-7-19 Humboldt Lindsay Creek Eureka Quad, Lindsay Creek Comment
  CAS-BOT-BC365665  Solidago spathulata Mary O'Conor 1921-9-26 s.n. Humboldt Eureka Comment
  HSC47012  Solidago spathulata Sheila Logan 1978-11-23 220 Humboldt Manila; 1/4 mi. W of the junction of Samoa Blvd. and Redwood Gun Club Rd. 3 Comment
  RSA286358  Solidago spathulata R. F. Thorne 1974-7-29 45070 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  SEINET5506402 Image available Solidago spathulata S. K. Harris 1939-1 s.n. Humboldt Samoa Comment
  UC466715  Sorbus scopulina Mrs. Manning 1900-1 Humboldt Mt. Hupa Trinity Summit Comment
  UC672883  Sparganium emersum var. emersum Joseph P. Tracy 1933-8-13 12969 Humboldt near Blue Lake; Mad River 15 Comment
  CAS-BOT-BC235371  Spartina densiflora W. A. Silveus 1938-7-10 2966 Humboldt Eureka Comment
  HSC79186  Spergula arvensis L. P. Janeway 1984-1-10 706 Humboldt HSU campus, N side of upper playing field 46 Comment
  CHSC14126  Spergula arvensis subsp. arvensis D. Joley 1967-8-16 49 Humboldt Found at a fish hatchery 4 mi n of Orick. Comment
  HSC90774  Spergularia macrotheca var. macrotheca Gail Newton 1983-8-21 3857 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC58037  Spergularia rubra G. L. Clifton 1979-7-31 11877 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC161002  Spergularia rubra Joseph P. Tracy 1906-6-17 2492 Humboldt Eureka Northern Coast Region (dry bed of Rick's Prairie pond) 0 Comment
  UCD114050  Spiraea douglasii Linda M. Barker 1976-6-14 1600 Humboldt 3 miles west of Arcata. Comment
  UC176181  Spiranthes romanzoffiana Joseph P. Tracy 1913-9-9 4398 Humboldt Big Lagoon Northern Coast Ranges 30 Comment
  RSA134646  Stachys ajugoides Harlan Lewis 1940-7-3 s.n. Humboldt Humboldt County: Little River Beach State Park Comment
  JEPS63065  Stachys ajugoides var. rigida W. L. Jepson 1932-7-26 16418 Humboldt Bull Creek 106 Comment
  UC726345  Stachys ajugoides var. rigida A. A. Heller 1923-7-8 13769 Humboldt near Pepperwood Comment
  UCLA71166  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  UC668216  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-9 15874 Humboldt 2 mi s Blocksburg 304 Comment
  UCLA71115  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Little River Beach State Park Comment
  HSC40957  Stachys chamissonis Linda M. Barker 1976-8-24 1683 Humboldt 3 mi. W of Arcata Comment
  UC1239727  Stachys chamissonis Joseph P. Tracy 1906-6-24 2496 Humboldt region about Humboldt Bay (s slope of Humboldt Hill); Northern Coast Region 0 Comment
  RSA82579  Stachys emersonii F. W. Peirson 1926-7-12 7034 Humboldt Redwood Creek, Orick. Comment
  CHSC109578  Stachys mexicana B. Castro; L. P. Janeway 2004-9-11 1475 Humboldt North Coast. Near blocked S end of Little River Road 0.25 mi N of Central Avenue; near S end of Clam Beach. Low ground, flats partially shaded by alder trees festooned with English ivy; base of steep slopes of coatal terrace, back edge of beach stabilized dunes along old road. 4 Comment
  JEPS120565  Stachys mexicana B. Castro and L. P. Janeway 2004-9-11 1475 Humboldt North Coast. Near blocked S end of Little River Road 0.25 mi N of Central Avenue; near S end of Clam Beach. Comment
  RSA82586  Stachys rigida subsp. rigida F. W. Peirson 1932-7-7 10260 Humboldt Roadside, on Willow Creek, a few miles Willow Creek P.O. Comment
  HSC59118  Stachys rigida var. quercetorum Terry Roth 1979-5-20 67 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  HSC48831  Stachys rigida var. rigida Brad Klipfel 1973-7-31 253 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC175343  Stellaria borealis subsp. sitchana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  UCD99372  Stellaria media Linda M. Barker 1976-4-30 1396 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC89487  Stellaria media P. A. Daly 1986-3-12 67 Humboldt Trinidad Head, along trail 61 Comment
  HSC99075  Stellaria nitens C. Witte 2007-5-10 16 Humboldt Along National Forest 1, near Kinsey Ridge. .2 miles south of intersection with 5N04. 1451 Comment
  HSC6235  Stephanomeria exigua Richard Spjut 1968-11-2 256 Humboldt On the SW slope of Chaparral Mtn. 915 Comment
  RSA254758  Stephanomeria virgata Thomas W. Nelson 1973-9-3 1122 Humboldt McKeown Ranch north of Dinsmore Comment
  HSC40608  Stipa lemmonii Thomas W. Nelson 1976-6-14 2702 Humboldt S of Lassic Peak (Signal Peak) 1646 Comment
  CAS-BOT-BC87618  Streptanthus tortuosus Volney Rattan 1878-1-1 s.n. Humboldt Unpsecified. Comment
  HSC57631  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-7-25 10783 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC57036  Streptopus amplexifolius Overton, Butler 1979-7-24 9671 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC666814  Suksdorfia ranunculifolia Joseph P. Tracy 1935-7-24 14196 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  HSC58186  Swertia radiata G. L. Clifton, Griswold 1979-8-2 12275 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC35348  Symphoricarpos albus var. laevigatus A. M. Montalvo, J. D. Ackerman 1975-6-22 481 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  JEPS13644  Symphoricarpos mollis Joseph P. Tracy 1930-7-16 8956 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC58385  Symphyotrichum bracteolatum Terry Griswold 1979-7-25 10923 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  CAS-BOT-BC99158  Symphyotrichum chilense Mary O'Conor 1927-9-26 s.n. Humboldt Eureka Comment
  CAS-BOT-BC99165  Symphyotrichum chilense Carl B. Wolf 1927-8-29 1201 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge, Mt. Glen Comment
  CAS-BOT-BC99166  Symphyotrichum chilense Carl B. Wolf 1937-9-9 9312 Humboldt North Coast Range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 304 Comment
  CAS-BOT-BC99167  Symphyotrichum chilense L. R. Abrams 1927-9-1 12063 Humboldt unspecified Comment
  CAS-BOT-BC99005  Symphyotrichum eatonii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC153938  Symphyotrichum subspicatum Joseph P. Tracy 1910-10-8 3170 Humboldt Brainard's Point Northern Coast Ranges, Humboldt Bay 0 Comment
  CDA5591  Symphytum asperum T. C. Fuller 1961-9-28 7047 Humboldt Iverson property, Arcata Bottoms, 0.5 mile south of the Mad River, 0.75 mile west of Highway 101, 2 miles north of Arcata. 0 Comment
  UC1239632  Symphytum asperum Joseph P. Tracy 1933-6-25 12629 Humboldt around Humboldt Bay (Salmon Creek Valley); Northern Coast Ranges, , Salmon Creek Valley 30 Comment
  HSC21155  Synthyris reniformis D. E. Anderson 1962-2-10 1917 Humboldt 0.5 mi. E of Big Lagoon Elementary School along abandoned stretch of Hwy. 101 Comment
  HSC89602  Synthyris reniformis M. Roantree 1985-4-28 17 Humboldt W side of Trinidad Head on an outcropping W of the trail Comment
  HSC91945  Synthyris reniformis E. Mackey 1987-3-1 Humboldt Patrick's Point State Park, Big Meadow, next to copse Comment
  UC582543  Synthyris reniformis Joseph P. Tracy 1923-3-10 6152 Humboldt Van Duzen River, near Grizzly Creek; Van Duzen River 91 Comment
  UCD86204  Taeniatherum caput-medusae Eugene C. Whitney 1960-8-4 Humboldt Mary White prop., Fruit Ranch, E/Rainbow Peak, Upper Bear River. Comment
  CAS-BOT-BC376721  Tanacetum bipinnatum Paul F. Covel 1937-7-13 1056 Humboldt Bar near mouth Eel River Comment
  HSC102585  Tellima grandiflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1572 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC447405  Tellima grandiflora Alice Eastwood 1907-4-22 22 Humboldt Trinidad, Light-house Point Comment
  JEPS49695  Tellima grandiflora Harley P. Chandler May 1901 1232 Humboldt Humboldt Bay; North Coast Range 121 Comment
  HSC100462  Thlaspi alpestre Carl C. Marshall Apr 1887 360 Humboldt Supply Creek, near Hoopa. Comment
  UC1222645  Thlaspi californicum Joseph P. Tracy 1951-5-20 19405 Humboldt at serpentine rockpile toward Ashfield Butte Kneeland Prairie; , toward Ashfield Butte 762 Comment
  NY17194  Thuja plicata W. B. Cooke 1969-8-19 2222 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
  NY17199  Thuja plicata A. Kellogg 1868-1 933 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
  RSA126263  Thuja plicata I. L. Wiggins 1955-7-31 13594 Humboldt Hillside 9 miles east of Arcata along Highway 299 Comment
  RSA352355  Thuja plicata J. P. Smith, AdvancedPlantTaxonomyClass 1971-10-9 5021 Humboldt Mad River above the Fish Hatchery. Comment
  CAS-BOT-BC88323  Thysanocarpus curvipes John H. Thomas 1968-4-21 14355 Humboldt About 6.4 miles south of Weitchpec (as measured along the road). 170 Comment
  HSC70508  Tiarella trifoliata var. unifoliata Gail Newton 1980-7-20 1608 Humboldt Near Bell Swamps 9 Comment
  HSC97995  Tiarella trifoliata var. unifoliata Cara Witte 2007-7-11 492 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  CAS-BOT-BC436909  Tiarella trifoliata var. unifoliata L. B. Kildale 1930-9-9 10410 Humboldt Redwood Creek at Berry's 289 Comment
  UC1197834  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1933-7-16 12781 Humboldt McKay Camp South Fork Mountain Comment
  UC180231  Tolmiea diplomenziesii Joseph P. Tracy 1914-8-23 4589 Humboldt near Forks of Elk River (Humboldt Bay Region); Northern Coast Region 0 Comment
  RSA41966  Tolmiea menziesii H. C. Cantelow 1935-6-13 1095 Humboldt East of Arcata. Road to Weaverville. Comment
  HSC41012  Tonella tenella J. P. Smith, J. O. Sawyer 1976-5-2 8631 Humboldt Hoopa Reservation, 0.2 mi. W of junction with Loop Rd. along Redwood Creek-Hoopa Rd. 61 Comment
  CAS-BOT-BC323057  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  HSC75391  Trautvetteria caroliniensis J. O. Sawyer, M. A. Ericksen 1980-7-18 3639 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  UC1103435  Trifolium barbigerum J. P. Tracy 1900-6-5 847 Humboldt immediate vicinity Eureka Comment
  UC495698  Trifolium barbigerum Joseph P. Tracy 1927-5-14 8028 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA91561  Trifolium bifidum var. decipiens F. W. Peirson 1926-7-12 7031 Humboldt Redwood Creek, Orick. Comment
  HSC45303  Trifolium campestre Ed Cope 1978-5-30 Humboldt Along old Hwy. 101, S of Trinidad Comment
  RSA249399  Trifolium cyathiferum D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-17 5705 Humboldt McKeown Ranch north of Dinsmore Comment
  RSA168861  Trifolium dichotomum Joseph P. Tracy 1943-5-9 17420 Humboldt Trinity River at Willow Creek. Comment
  POM277890  Trifolium eriocephalum subsp. eriocephalum Lyman D. Benson 1929-6-18 1732 Humboldt North of Arcata Comment
  UC495648  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-21 8769 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC162803  Trifolium fucatum Joseph P. Tracy 1906-7-4 2532 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  UC16800  Trifolium fucatum J. Burtt Davy 1899-6-8 5356 Humboldt near Harris; North Coast Ranges Comment
  HSC48612  Trifolium fucatum Mark Flippo 1978-5-18 61 Humboldt Hwy. 101 N jct. with Giuntoli Lane Comment
  SEINET12147991  Trifolium fucatum var. virescens J. P. Tracy 1938-1 15950 Humboldt S side of Cape Ridge. Cape Mendocino, s of point of the cape 30 Comment
  UC495642  Trifolium gracilentum Joseph P. Tracy 1932-5-22 10124 Humboldt betw Miranda and Redway (South Fork of Eel River); North Coast Ranges 91 Comment
  UC1197198  Trifolium gracilentum J. P. Tracy 1905-4-16 2162 1/2 Humboldt Ocean View Cemetary Eureka 0 Comment
  UC1130054  Trifolium hybridum H. S. Yates 1936-6-18 5724 Humboldt 2 mi s mouth of Littler River; Eureka quad 3 Comment
  CHSC69825  Trifolium incarnatum J. P. Smith; J. O. Sawyer, Tom Nelson 1972-4-22 Humboldt Freeway exit at Benbow. Planted by the Department of Highways. Comment
  HSC58651  Trifolium longipes G. L. Clifton, Griswold 1979-7-31 11709 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC70238  Trifolium longipes M. A. Baker 1980-6-8 1902 Humboldt Near Buck Flat. 1554 Comment
  HSC99351  Trifolium longipes subsp. hansenii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 197 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  HSC40537  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1976-5-23 2527 Humboldt In the Canyon of Bear Creek, W of Black Lassic 1524 Comment
  CHSC35554  Trifolium microcephalum James P. Smith 1973-5-26 6870 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC79459  Trifolium microcephalum Kenneth Clark 1980-4-18 591 Humboldt Shelter Cover, along access trail to Dead Man's Gulch 107 Comment
  RSA322029  Trifolium microdon John M. Gillett, A. G. Moulds, George W. Gillett 12607 Humboldt Trinidad. Comment
  UC1197551  Trifolium microdon Joseph P. Tracy 1932-5-1 9892 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  UC16702  Trifolium pratense Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5535 Humboldt near Scotia Comment
  UC1197045  Trifolium resupinatum J. P. Tracy 1896-5 105 Humboldt immediate vicinity Eureka (J and 14th St.) 0 Comment
  SEINET4206966  Trifolium variegatum Joseph P. Tracy 1932-5-17 10065 Humboldt Redwood Creek, at Berry's.; 0 274 Comment
  UC495680  Trifolium variegatum var. variegatum Joseph P. Tracy 1932-5-22 10123 Humboldt betw Miranda and Redway North Coast Ranges (South Fork of Eel River) 91 Comment
  JEPS4384  Trifolium variegatum var. variegatum Lincoln Constance 1934-5-31 764 Humboldt along n side Bull Creek (Bull Creek Flat, from w boundary of park to Grasshopper Park Rd (Squaw Creek)); South Fork Eel River, Bull Creek region Comment
  UC1223311  Trifolium willdenovii Joseph P. Tracy 1934-4-8 13170 Humboldt betw Miranda and Redway South Fork of Eel River Comment
  UC16760  Trifolium willdenovii Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5874 Humboldt Martin's Ferry Comment
  UC495692  Trifolium willdenovii Joseph P. Tracy 1932-6-14 10157 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UCD109887  Trifolium willdenovii Tofsrud 1948-1 s.n. Humboldt location unknown. Comment
  JEPS66099  Trifolium wormskioldii W. H. Shockley 1879-1 Humboldt Eureka Comment
  SEINET10862710  Trifolium wormskioldii var. wormskioldii A. Arthur Heller 1924-7-23 Heller 13876 Humboldt Wet soil in a ditch along the road leading to the lighthouse on Trinidad Head. Comment
  CAS-BOT-BC451809  Triglochin maritima Carl B. Wolf 1927-8-22 784 Humboldt Big Lagoon Comment
  HSC89895  Triglochin maritima Leonel Arguello 1989-6-11 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  HSC97549  Triglochin striata Ivy Watson 2008-9-20 30 Humboldt N of mouth of Mad River, along small tributary E of sand dunes 4 Comment
  UC1197830  Trillium albidum Joseph P. Tracy 1911-5-7 3182 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC175295  Trillium albidum Joseph P. Tracy 1913-6-17 4181 Humboldt near summit Buck Mt.; Northern Coast Ranges 1676 Comment
  HSC99359  Trillium kurabayashii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 8 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CHSC2320  Trillium ovatum 1933-4-15 Humboldt Comment
  CHSC28032  Trillium ovatum L. Greenhill 1977-4-6 12 Humboldt Abundant population 10 ft. from n side of highway 36, 1mile w from Grizzly Creek State Campground. 91 Comment
  HSC15697  Trillium ovatum D. E. Anderson 1962-3-18 1943 Humboldt Jacoby Creek Comment
  HSC15699  Trillium ovatum D. E. Anderson 1962-2-23 1923 Humboldt Grove E of HSC campus Comment
  HSC37360  Trillium ovatum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 490 Humboldt Along Lost Man Creek. 38 Comment
  HSC74571  Trillium ovatum M. A. Baker 1980-5-17 1192 Humboldt Near Le Perron Peak 792 Comment
  UC1197825  Trillium ovatum Joseph P. Tracy 1911-5-7 3184 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC176189  Trillium ovatum Joseph P. Tracy 1913-3-9 4019 Humboldt near Hydesville Hydesville; Northern Coast Region 60 Comment
  HSC15691  Trillium ovatum D. E. Anderson 1962-5-11 Humboldt E of HSC campus Comment
  HSC15694  Trillium ovatum V. G. Vieira 1963-3-10 37 Humboldt Essex Pond Comment
  SEINET12050374  Trillium ovatum F. H. Utech 1988-1 88 -276 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  SEINET12050390  Trillium ovatum F. H. Utech 1988-1 88 -020 Humboldt 3.5 mi N of Phillipsville & 1.5 mi S of Miranda along alternative US 101, Avenue of the Giants 85 Comment
  UCD18653  Trillium ovatum Roman Gankin 1956-3-17 105 Humboldt off US Hwy 101. Comment
  HSC99354  Trillium ovatum subsp. oettingeri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 3 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC99366  Trillium ovatum subsp. ovatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 15 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC100565  Trillium sessile Carl C. Marshall Apr 1884 393 Humboldt Hoopa Valley. Comment
  UC582568  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1932-5-1 9888 Humboldt vicinity Garberville 121 Comment
  CDA20454  Triphysaria eriantha subsp. eriantha P. Haggard 2003-5-11 PDR P 070982 Humboldt Northwestern California; around Humboldt Bay. 0 Comment
  HSC20851  Triphysaria eriantha subsp. eriantha R. T. Forester 1963-3-2 26 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC20854  Triphysaria eriantha subsp. eriantha J. R. Woodside 1963-5-1 21 Humboldt 1.25 mi. N of Fairhaven Comment
  UC146240  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1904-5-1 2040 Humboldt region about Humboldt Bay at Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC70581  Triphysaria pusilla Sue Sweet 1981-4-30 549 Humboldt Lanphere-Christensen Dunes Preserve, along trail N of weather station Comment
  UC1222444  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1927-4-24 7929 Humboldt Eureka 6 Comment
  HSC20866  Triphysaria versicolor subsp. faucibarbata Francis Winter 1960-5-6 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  SACT002443  Trisetum canescens Herbert Copeland 1936-6-15 Humboldt At world's biggest tree in redwood forest near Dyerville Comment
  UC34062  Trisetum canescens J. P. Tracy 1901-6-23 1167 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC193514  Trisetum cernuum Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  HSC33515  Trisetum cernuum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5713 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC1056032  Trisetum cernuum H. E. and S. T. Parks June 1952 7551 Humboldt Spruce Cove; Trinidad 60 Comment
  UC666905  Triteleia hyacinthina Joseph P. Tracy 1937-7-19 15451 Humboldt lower foothills nw slope Buck Mountain; lower foothills nw slope Buck Mountain 762 Comment
  UC144101  Triteleia laxa Joseph P. Tracy 1909-7-31 3035 Humboldt Knneland Prairie Northern Coast Ranges 762 Comment
  UCR6818  Tsuga heterophylla David Whistler, H. M. Whistler 1964-8-1 640801- 2 Humboldt Coast Range, US Hwy 299, 6 mi east of Blue Lake Comment
  HSC14485  Umbellularia californica W. R. Rogers 1965-5-6 293 Humboldt 3 mi. E of Arcata, Hwy. 299 Comment
  UC1239525  Uropappus lindleyi Joseph P. Tracy 1921-4-24 5462 Humboldt slopes and open groves South Fork Eel River (Phillipsville); Northern Coast Ranges, , Phillipsville 121 Comment
  UC30064  Vaccaria hispanica Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  UCD118069  Vaccinium membranaceum Joseph P. Tracy 1942-6-23 17243 Humboldt Trinity Summit, near Box Camp. 1524 Comment
  BLMAR145  Vaccinium ovatum Donald Hazlett 1994-6-7 145 Humboldt King range, near horse Mt. Ridge rd, east facing slope 670 Comment
  CAS-BOT-BC199323  Vaccinium ovatum Carl B. Wolf 1930-10-24 1761 Humboldt Along the Klamath River 2 miles below mouth of Salmon River 152 Comment
  HSC90226  Vaccinium ovatum L. Watson, J. Meninga Mar 1991 20 Humboldt Near Manilla, Mad River Slough and Dunes N of parking lot, W of trail Comment
  CAS-BOT-BC199406  Vaccinium parvifolium Clarence R. Quick 1959-7-24 59 -35 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  CAS-BOT-BC199423  Vaccinium parvifolium Doris K. Kildale 1927-5-13 3147 Humboldt Lord Ellis Road between Blue Lake & Bald Mountain Junction Comment
  HSC98120  Vaccinium parvifolium Cara Witte 2007-5-24 113 Humboldt Horse Mountain Botanical Area. Along Forest Service Rd. 6N38. Near Horse Mountain Mine. 1578 Comment
  RSA114992  Valeriana sitchensis subsp. scouleri E. K. Balls, Lee W. Lenz 1955-5-15 20732 Humboldt 6.4 miles SW of Willow Creek along US Hwy 299 to Arcata. 457 Comment
  JEPS9384  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1925-6-7 7061 Humboldt Willow Creek Canyon; Northern Coast Ranges 609 Comment
  UC1239585  Valeriana sitchensis subsp. sitchensis E. Ethel Tracy 1919-8-1 Humboldt Trinity Summit; Northern Coast Ranges; Trinity Summit 1524 Comment
  JEPS9387  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1930-7-17 8991 Humboldt South Fork Mountain at Mckay Camp South Fork Mountain 1676 Comment
  HSC27895  Vancouveria hexandra Clifton Raymond Chesbrough 1973-6-19 62 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC68321  Vancouveria hexandra J. P. Smith 1973-5-26 6841 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC71796  Vancouveria hexandra Gail Newton 1980-6-16 171 Humboldt Near Monks Camp. 1097 Comment
  SDSU13780  Vancouveria hexandra D. F. Howe 1969-6-4 4630 Humboldt 14.6 miles east of Alton on #36. 91 Comment
  HSC3388  Vancouveria hexandra M. T. Milligan 1964-5-14 Humboldt 3 mi. N on Essex Ln. Comment
  HSC76279  Vancouveria planipetala Teresa Prendusi 1981-7-7 123 Humboldt Near Slate Creek Butte. 1158 Comment
  RSA246944  Vancouveria planipetala R. F. Thorne, P. Everett 1965-8-5 35134 a Humboldt Mt. Chamisal. 549 Comment
  UC535767  Vancouveria planipetala Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  RSA259548  Vancouveria planipetala A. Montalvo, J. D. Ackerman 1974-7-17 377 Humboldt Grizzly Creek State Park, along Hwy. 36, between Carlotta and Bridgeville. Comment
  HSC73644  Veratrum californicum var. californicum M. A. Baker 1980-7-22 3112 Humboldt Near Grogan Hole. 1676 Comment
  UC153968  Veratrum californicum var. californicum Joseph P. Tracy 1910-7-24 3158 Humboldt 1.5 mi s Field's Landing; Humboldt Bay Region 0 Comment
  UC1225853  Veratrum insolitum Joseph P. Tracy 1948-9-5 18180 Humboldt 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
  HSC55608  Veronica americana Walter Overton, Marvin Butler 1979-7-23 9490 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  HSC83999  Veronica arvensis L. P. Janeway 1983-5-1 254 Humboldt SW corner of old baseball field (S of new Science Building) 30 Comment
  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
  JEPS29848  Vicia benghalensis Rimo Bacigalupi, and L. Heckard, J. Weiler 1961-6-23 7838 Humboldt about 1 mi w Carlotta (about 0.5 mi e of Hydesville) Comment
  UCR84713  Vicia benghalensis Kathy Harper 1992-5-14 s.n. Humboldt Coast Range, Van Duzen River, c. 1.5 mi. west of Bridgeville on State Hwy 36 195 Comment
  HSC33770  Vicia hirsuta Paul Dryden 1975-5-24 202 Humboldt Samoa Dunes, across from the boat landing. Comment
  HSC23675  Vicia sativa subsp. nigra Tim Baroni 1971-6-25 49 Humboldt Comment
  HSC15280  Vicia sativa subsp. sativa A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek Jct., 200 yards W of Lindsey Creek Comment
  UCR40074  Vicia tetrasperma L. P. Janeway, Paul Wilson 1984-5-25 828 Humboldt North Spit of Humboldt Bay; BML [sic - BLM?] lands near the Coast Guard Station. 5 Comment
  POM148460  Vicia villosa J. B. Feudge 1923-7-22 264 Humboldt Fortuna. 15 Comment
  HSC89689  Vicia villosa subsp. varia Robin Bencie, James Jones, Rich Dwerlkotte 1989-4-28 15 Humboldt Along Hwy. 299, near Korbel, 7.5 mi. E of Hwy. 101 122 Comment
  CAS-BOT-BC263952  Viola adunca L. B. Kildale 1926-3-30 1537 Humboldt Big Lagoon Comment
  HSC21771  Viola adunca J. J. Wagoner 1965-4-3 10 Humboldt 16 mi. N of Trinidad, W of Hwy. 101 in Dry Lagoon State Beach Park 6 Comment
  HSC21774  Viola adunca K. P. St. John 1965-4-3 10 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  RSA114998  Viola adunca E. K. Balls, Lee W. Lenz 1955-5-15 20739 Humboldt 13.5 miles SW from Ferndale along Old Coast road to Capetown. 335 Comment
  RSA24335  Viola adunca Carl B. Wolf 1941-2-25 9957 Humboldt Between Freshwater Lagoon and Stone Lagoon, 1/8 mile back from Ocean. 30 Comment
  UC1198430  Viola adunca J. P. Tracy 1901-6-23 1168 Humboldt immediate vicinity of Eureka 0 Comment
  UC1198463  Viola adunca Joseph P. Tracy 1926-3-14 7384 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  HSC100695  Viola canina Carl C. Marshall Apr 1886 169 Humboldt Everywhere. Comment
  HSC21786  Viola glabella Elrid H. Spinas 1948-5-22 31 Humboldt Horse Mtn. Comment
  HSC48412  Viola glabella Brad Klipfel 1973-6-10 84 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC70232  Viola hallii M. A. Baker 1980-6-8 1894 Humboldt Near Buck Flat. 1554 Comment
  JEPS80007  Viola hallii Joseph P. Tracy 1927-6-12 8125 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  SEINET6942419  Viola hallii Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  RSA125655  Viola ocellata E. K. Balls 1957-5-26 22608 Humboldt 2.6 mi NE from Harris on road to Alder Point. 701 Comment
  CHSC68506  Viola odorata Vernon H. Oswald 1997-4-10 8329 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  CHSC96699  Viola palustris Gordon Leppig 1998-5-11 761 Humboldt Big Lagoon County Park, Big Lagoon Bog. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
Read comments
Oct 11 2009
  CHSC13610  Viola sempervirens Mark Johnson 1974-4-28 29 Humboldt 1 mi w of Lady Bird Johnson Grove, 4 mi ne of Orick. 167 Comment
  HSC12233  Viola sempervirens Gary J. Stebbins 1970-2-2 3 Humboldt In Big Lagoon Park 2.7 mi. W of U.S. 101 Comment
  UCD93442  Vulpia bromoides Linda M. Barker 1976-6-1 1543 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CHSC19731  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt Ca. 3 miles west of Willow Creek along Three Creeks Road. Comment
  HSC9928  Vulpia myuros H. E. Parks, S. T. Parks Jun 1937 5897 Humboldt Spruce Cove. Trinidad. 61 Comment
  RSA244994  Vulpia myuros D. E. Anderson 1970-5-21 5078 Humboldt Scotia Bluffs 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
  CAS-BOT-BC128812  Whipplea modesta Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  HSC100395  Woodwardia radicans Carl C. Marshall Jun 1885 14 Humboldt Near Jarnigan's and on R. Wood. Comment
  CAS-BOT-BC382920  Wyethia angustifolia Doris K. Kildale 1928-6-24 5271 Humboldt Horse Mountain 853 Comment
  HSC6317  Wyethia angustifolia D. E. Anderson 1963-5-25 2484 Humboldt 2-3 mi. N of Capetown Comment
  HSC74374  Wyethia angustifolia M. A. Baker 1980-6-28 2493 Humboldt Near Mad River Buttes 1445 Comment
  JEPS32068  Wyethia angustifolia Joseph P. Tracy 1933-8-6 12937 Humboldt French Camp Ridge 1066 Comment
  UC1223300  Wyethia angustifolia Joseph P. Tracy 1950-9-10 19357 Humboldt Bear River Ridge 609 Comment
  CAS-BOT-BC382928  Wyethia angustifolia Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans Comment
  UC36765  Wyethia angustifolia Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5726 Humboldt Supply Creek Hoopa Valley, Supply Creek (Hoopa Valley, north-western California) Comment
  UC582640  Wyethia longicaulis Joseph P. Tracy 1932-6-26 10253 Humboldt Valley of South Yager Creek 762 Comment
  UC1223296  Xanthium spinosum Joseph P. Tracy 1943-11-28 17452 Humboldt river bar at mouth Van Duzen River (near Alton); Eel River 91 Comment
  UC668191  Xanthium spinosum Joseph P. Tracy 1938-10-30 16174 Humboldt Holmes Flat 60 Comment
  UC303043  Xerophyllum tenax Joseph P. Tracy 1926-5-2 7445 Humboldt Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 609 Comment
  HSC23204  Zeltnera muehlenbergii Jana Kattenhorn 1970-10-31 171 Humboldt Scotia Bluffs, along railroad tracks on E side of the river Comment
  UC176187  Zigadenus micranthus var. micranthus Joseph P. Tracy 1912-6-9 3692 Humboldt Alton Northern Coast Region 30 Comment
  CDA869  Zostera marina F. J. Shaughnessy 1999-6-14 s.n. Humboldt Humboldt Bay. Fields Landing 0.0-+1 . 0 Comment



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