Search Results — 2000 specimen records retrieved (1382 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC76295  Abies concolor Denis Kearns 1981-7-24 438 Humboldt Near Whiteys Peak. 1768 Comment
  HSC89414  Abies grandis P. A. Daly 1986-3-12 92 Humboldt Trinidad Head, along trail 61 Comment
  HSC12834  Abies magnifica Thomas W. Nelson, Wilbur Peterson 1970-12-2 296 Humboldt HSC Campus, W side of tennis court Comment
  CHSC1069  Abronia latifolia 1947-6-1 Humboldt Coastal. Comment
  HSC37569  Abronia latifolia J. D. Ackerman 1975-6-10 456 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  SEINET11933918  Abronia latifolia F. H. Utech 1986-1 86 -404 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  UC673029  Abronia umbellata subsp. breviflora Joseph P. Tracy 1940-9-9 16721 Humboldt Mouth of Little River 3 Comment
  CAS-BOT-BC330542  Acer circinatum C. B. Wolf 1931-8-29 2368 Humboldt Redwood Highway, 3 miles N of Orick. (Davison's Ranch on Prairie Creek) 60 Comment
  CAS-BOT-BC330565  Acer circinatum W. R. Dudley 1899-6-21 s.n. Humboldt Englewood Creek, Eel River Comment
  CAS-BOT-BC331583  Acer macrophyllum Doris K. Kildale 1927-5-7 3112 Humboldt Elk Ridge Comment
  HSC12932  Acer macrophyllum C. E. Fellows 1970-11-9 351 Humboldt HSC Campus, S side Bio Greenhouse Comment
  CHSC32850  Achillea millefolium L. L. Anderson 1981-4-25 6 Humboldt Ca. 0.5 mi e of ocean (Moonstone Beach) w of Hwy 101, 11.5 mi n of Arcata. 0 Comment
  HSC90231  Achillea millefolium L. Watson, J. Meninga Aug 1990 1 Humboldt Near Manilla. Mad River Slough and Dunes; 20 ft. N of parking lot, W of trail Comment
  CAS-BOT-BC28583  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
  UC1222922  Achillea millefolium Joseph P. Tracy 1950-5-30 18712 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  HSC3335  Achlys triphylla H. E. Parks, S. T. Parks May 1930 752 Humboldt Along Van Duzen River Comment
  HSC3340  Achlys triphylla Lincoln Constance 1934-6-1 773 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  HSC3342  Achlys triphylla Jack Rockwell 1962-4-29 36 Humboldt S Bank of Van Duzen River, E of Hwy. 101 9 Comment
  RSA12544  Achlys triphylla C. B. Wolf 1934-7-2 5894 Humboldt Snow Camp. (Mountains east of Korbel). 1372 Comment
  UC1145039  Achnatherum lemmonii Joseph P. Tracy 1938-6-17 15968 Humboldt on road from Bull Creek to Upper Mattole (Panther Gap); Panther Gap 822 Comment
  UC682049  Achnatherum lemmonii G. L. Stebbins Jr. and G. L. Church 1941-5-27 3113 Humboldt 4.1 mi w on road to Bridgeville Dinsmore's 762 Comment
  UC526667  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-17 10667 Humboldt ridges e Corral Prairie; Klamath Mountains 1828 Comment
  UC581802  Achyrachaena mollis Joseph P. Tracy 1932-6-26 10271 Humboldt Fort Baker Ranch 762 Comment
  UCD103751  Acmispon denticulatus Bill Brooks 1948-6-1 s.n. Humboldt Van Duzen River, 3 mi. W of Bridgeville. Comment
  HSC71443  Acmispon micranthus J. P. Smith 1971-10-9 5047 Humboldt Mad River above the Fish Hatchery. Comment
  HSC71471  Acmispon micranthus J. P. Smith, J. O. Sawyer 1973-5-12 6673 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC98301  Acmispon micranthus J. W. Johnson 1962-4-19 1276 Humboldt W of Texaco Service Station, Samoa Peninsula, Manila. Comment
  HSC98305  Acmispon micranthus J. R. Woodside 1963-5-1 24 Humboldt 1.25 mi. N of Fairhaven Comment
  HSC35607  Adenocaulon bicolor Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2019 Humboldt Just E of Redwood National Park along Bald Hills Rd. Comment
  HSC73574  Adenocaulon bicolor Gail Newton 1980-7-14 1511 Humboldt Near Deadman Ridge 1097 Comment
  UC1223546  Adiantum X tracyi Joseph P. Tracy 1951-7-8 19622 Humboldt <collector's garden> Eureka Comment
  UC62739  Adiantum aleuticum P. E. Goddard 1901-7-12 74 Humboldt Hupa Comment
  UC165016  Ageratina occidentalis Joseph P. Tracy 1911-7-4 3300 Humboldt (tributary of Trinity River, Humboldt County) near its mouth Willow Creek 304 Comment
  UC582749  Agoseris grandiflora Joseph P. Tracy 1927-5-30 8093 Humboldt Garberville 121 Comment
  JEPS36258  Agoseris grandiflora Milo S. Baker 1923-7-20 66 Humboldt 15 mi e, at Redwood house on Yager Road Hydesville Comment
  UCD128596  Agoseris grandiflora Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mile west of Mud Springs (to Box Camp on west slope of Trinity Summit). Comment
  CAS-BOT-BC29628  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1921-7-24 5859 Humboldt Kneeland Prairie 762 Comment
  UC1222936  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1950-7-6 19025 Humboldt 3 mi s, sw slopes of Buck Mountain Burr Valley; Buck Mountain 1066 Comment
  UC1222938  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mi w, to Box Camp w slope of Trinity Summit Mud Springs; Trinity Summit Comment
  UC92278  Agoseris heterophylla var. heterophylla W. W. Price 1900-6-30 Humboldt Mad River Comment
  UC1199476  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 2700 Humboldt on grassy slopes McClellan Mountain; Northern Coast Ranges 822 Comment
  UC1199478  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7019 E Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC1222764  Agoseris retrorsa Joseph P. Tracy 1951-7-26 19591 Humboldt at extreme head of, gravelly spot, n side of Board Camp Mountain Redwood Creek; Board Camp Mountain 1541 Comment
  CAS-BOT-BC127287  Agrostis exarata Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River at Orleans. Comment
  CAS-BOT-BC127300  Agrostis exarata Joseph P. Tracy 1927-7-17 8271 Humboldt Three Cabins. Western foothills of Chaparral Mountain. 457 Comment
  HSC8785  Agrostis exarata D. E. Anderson 1961-8-25 1743 Humboldt Beach area 1.5 miles S of Trinidad. Comment
  HSC98510  Agrostis exarata Cara Witte 2008-8-6 1005 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  RSA129586  Agrostis exarata H. S. Yates 1936-6-16 5664 Humboldt 1 mile S.W. of Samoa. Comment
  UCD52494  Agrostis exarata Joseph P. Tracy 1935-7-21 14111 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCR27986  Agrostis exarata A. C. Sanders 1981-8-6 2302 Humboldt Near Orick, 1.6 mi west of Hwy 101 on Davison Road toward Gold Bluffs Beach Comment
  CAS-BOT-BC139694  Agrostis gigantea Joseph P. Tracy 1932-8-21 10363 Humboldt North Coast Ranges. Three Cabins. On lower western foothills of Chaparral Mountain. 457 Comment
  CAS-BOT-BC139696  Agrostis gigantea Henry M. Pollard 1945-8-24 s.n. Humboldt Between Orleans and Camp Creek. Klamath River. Comment
  SEINET3916558  Agrostis hallii James Payne Smith Jr 1977-7-3 9257 Humboldt Six River National Forest. Along Forest Service Road 13NO1, 3 miles from its junction with State Route 36.; 0 549 Comment
  UC526882  Agrostis hallii Joseph P. Tracy 1930-6-29 8812 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UCD52682  Agrostis hallii P. B. Kennedy 1928-6-14 s.n. Humboldt Stoddard Store, near Garberville. Comment
  UCD52719  Agrostis hallii Joseph P. Tracy 1938-7-4 15983 Humboldt valley of South Yager Creek. 762 Comment
  SBBG53087  Agrostis longiligula R. N. Philbrick, J. R. Haller 1976-6-25 7 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  RSA152377  Agrostis oregonensis Joseph P. Tracy 1941-8-24 17039 Humboldt South Fork Mountain. Near McKay camp. 1677 Comment
  HSC49053  Agrostis pallens Thomas Nelson, Jane Nelson 1978-7-3 4414 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC138630  Agrostis stolonifera David D. Keck 1938-8-5 4771 Humboldt Big Lagoon. Comment
  SEINET200839 Image available Agrostis stolonifera Joseph P. Tracy 1909-7-11 3012 Humboldt Eureka 0 Comment
  UC552778  Agrostis thurberiana Joseph P. Tracy 1934-7-18 13453 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1103371  Agrostis viridis Joseph P. Tracy 1911-7-9 3460 Humboldt wet places along Willow Creek (creek is tributary of Trinity River); Northern Coast Ranges 243 Comment
  HSC47784  Aira caryophyllea Michael A. Watkins 1978-6-10 10 Humboldt Arcata, E side of 7th St. overpass to Hwy. 101 Comment
  HSC8861  Aira caryophyllea unknown May 1933 4003 Humboldt Spruce Cove, Trinidad Comment
  SACT000238  Aira caryophyllea H. Stinnett 1963-5-11 Humboldt coastal strand Comment
  SEINET185294  Aira caryophyllea Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15072 Humboldt Coolidge Tree Redwood Park Comment
  HSC8871  Aira praecox R. J. Vernimen 1963-4-27 35 Humboldt 0.5 mi. off Samoa Blvd. behind Georgia-Pacific dump, 7.5 mi. SW of Arcata Comment
  HSC34696  Alisma triviale Thomas W. Nelson 1974-9-12 1707 Humboldt KOA campground along E side of Hwy. 101, 3 mi. S of Arcata Comment
  CHSC32836  Allium amplectens Lora L. Anderson 1981-4-25 16 Humboldt Ca. 1.5 mi ne Redwood Creek, 4.5 mi n of 299w 18 mi ne of Arcata. 228 Comment
  POM169690  Allium bolanderi H. P. Chandler 1901-06 1434 Humboldt Klamath River. Comment
  UC666929  Allium bolanderi Joseph P. Tracy 1933-7-9 12652 Humboldt Brannan Mountain 1066 Comment
  HSC57873  Allium campanulatum Overton, Butler 1979-7-31 11409 Humboldt Near Water Dog Lakes 1830 Comment
  RSA46682  Allium falcifolium Doris K. Kildale 1937-7-18 15132 Humboldt Horse Mt. Comment
  HSC32893  Allium hoffmanii Thomas W. Nelson 1973-5-30 977 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  HSC67211  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-7-10 5440 Humboldt Along branch rd. off Swayback Ridge Rd., 0.5 mi. E of junction 1372 Comment
  HSC71809  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5951 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  CAS-BOT-BC476627  Allium unifolium Carl B. Wolf 1937-8-11 8900 Humboldt Fleener Creek, 1/2 mi. so. of Centerville. 45 Comment
  CAS-BOT-BC476630  Allium unifolium Katherine Esau 1934-5-7 s.n. Humboldt Above Fort Seward 609 Comment
  HSC42107  Allium validum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3704 Humboldt Along S side of Lassic Peak 1463 Comment
  UC412886  Allotropa virgata Mrs. M. H. Manning 1901-1 Humboldt Hupa Comment
  UC503081  Alnus incana subsp. tenuifolia Joseph P. Tracy 1932-7-15 10605 Humboldt ridges e Corral Prairie (hollows); Klamath Mountains, Trinity Summit 1828 Comment
  CAS-BOT-BC170943  Alnus rhombifolia Doris K. Kildale 1926-8-8 2457 a Humboldt Dyerville Brdige on South Fork of Eel River 45 Comment
  UC503085  Alnus rhombifolia Joseph P. Tracy 1931-10-11 9717 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC503096  Alnus rhombifolia Joseph P. Tracy 1930-11-2 9243 Humboldt Camp Grant Northern Coast Ranges, Eel River (along river) 60 Comment
  SEINET12027585  Alnus rhombifolia J. P. Tracy 1950-1 19375 Humboldt Klamath River, near Slate Creek, below Orleans 8 mi 122 Comment
  CAS-BOT-BC169540  Alnus rubra Carl B. Wolf 1931-8-28 2366 Humboldt Moist ravine, Redwood Highway, 4 1/2 miles N of Fortuna on road to Eureka 15 Comment
  HSC65052  Alnus rubra J. P. Smith, Steve Selva 1970-6-30 4115 Humboldt Comment
  HSC96512  Alnus rubra Gordon Leppig 1999-7-9 1179 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 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
  UC176169  Alnus rubra Joseph P. Tracy 1913-9-9 4392 Humboldt Big Lagoon Northern Coast Ranges 30 Comment
  UC198600  Alnus rubra Joseph P. Tracy 1917-10-28 4859 Humboldt North Fork of Eel River Northern Coast Ranges, around Humboldt Bay 91 Comment
  UC187254  Alopecurus aequalis Joseph P. Tracy 1911-7-7 3400 Humboldt 3 mi. n.w. of junction of Willow Creek with Trinity R. (at meadows on mt. side, near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC90772  Alopecurus geniculatus Gail Newton 1982-6-5 3588 Humboldt Elk River Wildlife Area, Eureka Comment
  UCD55896  Alopecurus geniculatus Joseph P. Tracy 1917-6-17 4816 Humboldt in Salmon Creek Valley, at south end of Humboldt Bay. 15 Comment
  HSC8897  Alopecurus pratensis W. F. Cartwright 1965-4-22 60 Humboldt 2 mi. W of Arcata on Arcata bottoms Comment
  HSC35627  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2140 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  UC665537  Ambrosia chamissonis H. E. Parks 1941-8-1 24181 Humboldt Big Lagoon Comment
  CAS-BOT-BC13699  Ambrosia chamissonis Kenneth Clark 1981-5-24 1396 Humboldt Shelter Cove, 100 yards west of Dead Man's Gulch. Point Delgada quad. 3 Comment
  HSC35866  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2128 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  HSC18509  Amelanchier alnifolia H. E. Parks, J. P. Tracy 1925-6-25 2775 Humboldt Lawrence Creek Comment
  HSC18529  Amelanchier alnifolia var. semiintegrifolia F. B. Plett 1963-4-9 16 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  SDSU19194  Amelanchier alnifolia var. semiintegrifolia Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3011 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.3 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1426 Comment
  UC154236  Amelanchier alnifolia var. semiintegrifolia J. P. Tracy 1909-7-18 3014 Humboldt immediate vicinity Eureka 0 Comment
  UC418998  Amelanchier alnifolia var. semiintegrifolia H. E. Parks, J. P. Tracy 1925-6-25 3775 Humboldt Lawrence Creek Comment
  HSC32334  Amelanchier pallida D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5617 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC41466  Amelanchier pallida J. P. Smith, J. O. Sawyer 1973-5-12 6690 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  UC505104  Ammannia robusta Joseph P. Tracy 1931-9-7 9659 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  HSC8846  Ammophila arenaria D. J. Wilder 1965-4-26 16 Humboldt Mouth of Mad River Comment
  HSC17842  Anagallis arvensis S. J. Hawks 1965-5-18 79 Humboldt Clam Beach Comment
  HSC26883  Anagallis arvensis Clifton Raymond Chesbrough 1973-6-19 90 Humboldt 1/2 mile S of Trinidad along the coast Comment
  CDA30216  Anaphalis margaritacea M. K. Beyers, I. Shepardson 2009-9-13 256 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC57007  Anaphalis margaritacea Overton, Butler 1979-7-24 9594 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC91928  Anaphalis margaritacea E. Mackey 1986-7-21 Humboldt Patricks Point State Park; Palmer's Point Comment
  SEINET8734419 Image available Anaphalis margaritacea H. E. Parks, S. T. Parks 1943-1 24237 Humboldt Stone Lagoon Comment
  SEINET12094124  Anemone deltoidea F. H. Utech 1988-1 88 -273 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park (Pamplin Grove) 50 Comment
  CHSC31275  Anemone oregana Mark Stopher 1980-5-20 71 Humboldt Along the Van Duzen River near Rte 36. Comment
  UC1197382  Angelica genuflexa Joseph P. Tracy 1946-8-25 17635 Humboldt 2 mi s of Fields Landing (near Still Ranch) 6 Comment
  HSC21447  Angelica hendersonii C. B. Wolf 1927-8-29 1216 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  HSC71403  Angelica hendersonii J. M. DiTomaso 1980-8-1 1817 Humboldt Table Bluff, S of Eureka, 100m from ocean Comment
  HSC21452  Angelica lucida Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  RSA246846  Angelica lucida R. F. Thorne, P. Everett 1965-8-9 35337 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 Comment
  HSC48315  Angelica tomentosa Brad Klipfel 1973-8-3 303 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC642265  Angelica tomentosa Joseph P. Tracy 1939-8-16 16410 Humboldt Horse Mountain 1432 Comment
  UCR270360  Angelica tomentosa John F. Emmel 2003-7-30 1801 Humboldt North Coast, Bald Hills Road, 21.5 road mi southeast of Hwy 101, near south end of French Camp Ridge 915 Comment
  HSC32840  Anisocarpus madioides Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch N of Dinsmore Comment
  UC582649  Antennaria rosea Joseph P. Tracy 1935-7-24 14169 Humboldt Trinity Summit (near Ranger Station) Trinity Summit 1828 Comment
  SEINET271527  Anthoxanthum occidentale Bassett Maguire, Ruth Maguire; CB Maguire 1934-6-8 15071 Humboldt Bolling Grove State Park ; unspecified Comment
  UCD85354  Anthoxanthum occidentale A. H. Murphy 1947-2-1 s.n. Humboldt Along road 1 mile S of McCann. Comment
  HSC8944  Anthoxanthum odoratum Paul Shields 1955-6-10 Humboldt Humboldt State University campus. Comment
  HSC8951  Anthoxanthum odoratum E. W. Styskel 1963-5-19 43 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  UC582471  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1935-10-13 14756 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC902210  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1948-8-8 18086 Humboldt Iaqua school house; Iaqua 609 Comment
  UC34969  Apocynum cannabinum Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  RSA21323  Apocynum pumilum var. rhomboideum C. B. Wolf 1937-8-13 s.n. Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC18054  Aquilegia formosa var. formosa N. D. Dennis 1965-5-5 47 Humboldt 2 mi. N of Trinidad on Hwy. 101 Comment
  HSC100611  Aquilegia truncata Carl C. Marshall Jun 1887 Humboldt Everywhere. Comment
  UC552302  Arabidopsis thaliana Joseph P. Tracy 1935-4-20 13787 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC6523  Arabis glabra D. E. Anderson 1962-5-10 2206 Humboldt Lanphere Ranch. Comment
  HSC76286  Aralia californica Teresa Prendusi 1981-7-23 364 Humboldt Near Black Mtn. 890 Comment
  CDA38203  Aralia californica T. Gallion & M. S. Bergseng 1959-7-23 2816 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  RSA171939  Aralia californica R. F. Thorne 1957-9-2 19010 -a Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  CAS-BOT-BC407747  Arceuthobium abietinum Doris K. Kildale 1926-9-5 2634 Humboldt Lasseck's Peaks, between Goat Camp and Signal Peak 1661 Comment
  UC1225936  Arctostaphylos Joseph P. Tracy 1947-7-5 17787 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  CAS-BOT-BC23749  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt Fickle Hill, 6 mi. SE of arcata 609 Comment
  CAS-BOT-BC23785  Arctostaphylos columbiana Doris K. Kildale 1927-2-22 2980 Humboldt Kneeland Prairie at juncion of old and new roads 609 Comment
  CAS-BOT-BC23814  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Berry Mt. betweein Redwood Creek and Trinity River. Comment
  HSC68214  Arctostaphylos columbiana J. P. Smith, J. O. Sawyer 1975-4-6 8052 Humboldt 3 mi. N of Whitehorn, across from the CA Dept. of Forestry Fire Station Comment
  JEPS19869  Arctostaphylos columbiana Joseph P. Tracy 1923-3-31 6168 Humboldt around Humboldt Bay; Northern Coast Region, Table Bluff 60 Comment
  JEPS38964  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13139 Humboldt vicinity of Trinidad 60 Comment
  UC1174844  Arctostaphylos columbiana P. C. Everett and E. K. Balls 1959-10-26 23975 Humboldt 4 mi se from Honeydew (along old Coast Road to Ettersburg) 457 Comment
  UCD50679  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15439 Humboldt Eureka. 45 Comment
  RSA254754  Arctostaphylos columbiana var. columbiana Thomas W. Nelson 1975-3-20 1750 Humboldt Along Kneeland Rd. just south of its junction with Maple Creek Rd. Losey property. 671 Comment
  UCD51010  Arctostaphylos glandulosa Lincoln Constance 1984-6-15 886 Humboldt Summit of Grasshopper Peak. 975 Comment
  SEINET11984826  Arctostaphylos glandulosa Unknown 1965-1 542 Humboldt on USAL Road, 1 mi N of junction of Four Corners Comment
  HSC100093  Arctostaphylos manzanita J. P. Smith, J. O. Sawyer 2010-3-22 12710 Humboldt Along Hwy. 36, E of Dinsmore. 734 Comment
  HSC37829  Arctostaphylos manzanita Thomas W. Nelson, Jane P. Nelson 1976-2-21 2249 Humboldt Tish-Tang Campground Comment
  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
  JEPS38923  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1933-4-2 10949 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS38928  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Willow Creek Trinity River Valley 152 Comment
  POM131743  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1918-7-6 5056 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  CAS-BOT-BC40029  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13154 Humboldt French Camp Ridge 1066 Comment
  SEINET11988227  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1981-1 4326 Humboldt Regional Parks Botanic Garden, Berkeley, orig. from French Camp Comment
  CAS-BOT-BC46630  Arctostaphylos patula Joseph P. Tracy 1939-8-16 16419 Humboldt Grouse Mountain. 1524 Comment
  JEPS38932  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8136 Humboldt Horse Mountain 1432 Comment
  JEPS38941  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8135 Humboldt Horse Mountain 1432 Comment
  UC585899  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8135 Humboldt Horse Mountain 1432 Comment
  HSC100469  Arctostaphylos pungens Carl C. Marshall Apr 1886 383 Humboldt Hoopa Valley. Comment
  SEINET2028710 Image available Arctostaphylos tracyi H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's Point Comment
  CAS-BOT-BC43989  Arctostaphylos uva-ursi C. B. Wolf 1931-8-30 2374 Humboldt Samoa, Humboldt Bay. 7 Comment
  CAS-BOT-BC43996  Arctostaphylos uva-ursi Doris K. Kildale 1928-8-10 6264 Humboldt Samoa peninsula Comment
  HSC28130  Arctostaphylos uva-ursi J. D. Ackerman, A. M. Montalvo 1973-3-27 42 Humboldt 1.5 mi. N of Manila Comment
  HSC7730  Arctostaphylos uva-ursi Norman H. Moe 1962-3-17 Humboldt Lanphere's Place Comment
  HSC7732  Arctostaphylos uva-ursi J. R. Woodside 1963-3-23 37 Humboldt 1 1/4 mi. N of Fairhaven Comment
  HSC7734  Arctostaphylos uva-ursi Jerry Parker 1968-10-16 14 .1 Humboldt Foot of Murray Rd., McKinleyville Comment
  RSA152314  Arctostaphylos uva-ursi Joseph P. Tracy s.n. Humboldt Eureka. 46 Comment
  UC1225933  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17502 Humboldt Eureka 45 Comment
  UC21912  Arctostaphylos uva-ursi J. Burtt Davy 1899-7-30 6184 Humboldt opposite Eureka; Samoa Comment
  UC21914  Arctostaphylos uva-ursi J. P. Tracy 1897-4-17 Humboldt Samoa Humboldt Bay Comment
  UCR178884  Arctostaphylos uva-ursi R. G. Swinney 1968-4-13 244 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 Comment
  UCD52156  Arctostaphylos uva-ursi var. coactilis Linda M. Barker 1976-4-13 1379 Humboldt Coastal forest and dunes 3 miles west of Arcata, Humboldt Co., California. Comment
  SEINET11987311  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4200 Humboldt Strybing Arboretum, Golden Gate Park, San Francisco, orig. probably from Samoa Sand Spit Comment
  JEPS86731  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt on, 3.4 mi w of Main Street, in Larry Pries dairy Centerville Beach Road; Ferndale Comment
  CAS-BOT-BC384746  Arenaria serpyllifolia var. serpyllifolia Joseph P. Tracy 1933-5-18 12192 Humboldt Along Mad River, near Blue Lake 15 Comment
  OBI75994  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Trinity River Valley, at Willow Crk 152 Comment
  UCD56478  Aristida oligantha A. H. Murphy 1947-7-1 s.n. Humboldt south of Blocksburg, Tooby and Prior Ranch, K-weed Beetle field. Comment
  HSC26887  Armeria maritima subsp. californica Clifton Raymond Chesbrough 1973-6-19 99 Humboldt 0.5 mi. N of College Cove, along the coast. Comment
  HSC32042  Armeria maritima subsp. californica J. D. Ackerman 1974-5-25 267 Humboldt About 0.25 mi. S of Lufenholtz Co. Beach, off Scenic Dr. between Trinidad and Moonstone Beach. Comment
  CHSC23908  Armeria maritima var. californica N. Dennis; D. E. Anderson 1965-6-8 108 Humboldt Samoa Peninsula along the west side of Humboldt Bay. Sand dunes and flats along the ocean. Comment
  UC581753  Arnica discoidea Joseph P. Tracy 1937-7-2 15398 Humboldt on ridge 2 mi e of, Grove's Prairie; Trinity Summit 1524 Comment
  UC1199250  Arnica discoidea Joseph P. Tracy 1919-5-31 5170 Humboldt near, at w side of Trinity River Willow Creek; Trinity River 182 Comment
  UC212866  Arrhenatherum elatius Joseph P. Tracy 1919-8-28 5184 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC84834  Artemisia douglasiana Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  HSC98764  Artemisia douglasiana Cara Witte 2008-9-13 1036 Humboldt Forest Service Road 4N06. 1/4 mile east of intersection with National Forest 1. Cow Creek Ridge. 1283 Comment
  JEPS37015  Artemisia dracunculus W. L. Jepson 1921-9-11 9464 Humboldt 7 or 8 mi. s. Garberville (not far from Indian Creek (Devoy Flat) Redwood Flat, w. of S. Fork Eel); South Fork Eel River Comment
  CHSC266  Artemisia pycnocephala M. Anthony 1960-5-1 Humboldt Coastal. Comment
  HSC67445  Artemisia pycnocephala J. P. Smith 1971-10-6 4960 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1073329  Artemisia pycnocephala George B. Rossbach 1955-6-10 513 Humboldt between Fairhaven and end of sandy point off Eureka (near Humboldt Bay (lagoon) and lighthouse); Humboldt Bay Comment
  CAS-BOT-BC97241  Artemisia suksdorfii H. E. Parks 1940-5-1 24178 Humboldt Little River Comment
  HSC34272  Aruncus dioicus var. acuminatus K. Irwin 1975-8-13 Humboldt Grogans Hole Comment
  RSA46846  Aruncus sylvester Doris K. Kildale 1927-7-3 3663 Humboldt Willow Creek Flat. Comment
  CAS-BOT-BC400534  Asarum caudatum Doris K. Kildale 1928-5-19 5183 Humboldt Chalk Mountain Comment
  UC55774  Asarum caudatum P. E. Goddard 1901-7-27 117 Humboldt Trinity Summit Comment
  SD58206  Asarum caudatum Lincoln Constance 1934-6-2 774 Humboldt Bull Creek Region, South Fork Eeel River, Bull Creek road to mouth of Bull Creek and up Bull Creek Comment
  UC1198116  Asarum caudatum Joseph P. Tracy 1913-6-25 4343 Humboldt Dinsmore's Ranch; in valley of Van Duzen River opposite Buck Mountain 762 Comment
  UC1173688  Asclepias cordifolia Joseph P. Tracy 1939-5-6 16277 Humboldt Willow Creek Trinity River Valley 152 Comment
  POM127914  Asclepias speciosa P. E. Goddard 1906-06 688 Humboldt Blocksburg Comment
  HSC100387  Aspidium munitum Carl C. Marshall May 1884 33 Humboldt Bear River. Comment
  CDA10236  Aster chilensis E. C. Whitney 1963-9-17 Humboldt Lamphere Road, Arcata. 0 Comment
  RSA167200  Aster foliaceus var. lyallii Joseph P. Tracy 1950-8-7 19271 Humboldt Box Camp, Trinity Summit 1463 Comment
  UC502993  Astragalus agnicidus J. C. Tario Jr. 1931-8-20 Humboldt 4 mi s Miranda (near Bear Buttes, local on Tosten and Pierce Ranch); s of Miranda, nr Bear buttes, Tosten and Pierce Ranch 762 Comment
  UC1222420  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt at Lake Prairie , at Lake Prairie (Bald Mountain) 1066 Comment
  JEPS35144  Athyrium filix-femina var. cyclosorum Lincoln Constance 1934-6-2 785 Humboldt S. Fork Eel River Comment
  UC1191297  Atriplex patula Malcolm A. Nobs, S. Galen Smith 1949-8-11 1341 Humboldt eastern shore Stone Lagoon; eastern shore Stone Lagoon Comment
  HSC4339  Atriplex prostrata Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  HSC89858  Atriplex prostrata Leonel Arguello 1989-9-9 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  HSC97550  Atriplex prostrata Ivy Watson 2008-10-11 56 Humboldt Mad river, near river mouth, S bank 6 Comment
  SEINET4175775  Avena barbata Joseph P. Tracy 1906-4-29 2426 Humboldt Edge of field near Bucksport Comment
  HSC45052  Avena fatua R. Sutherland 1978-4-25 9 .25478 Humboldt 9 Comment
  HSC9026  Avena fatua Gene S. Van Horn 1962-5-23 26 Humboldt Arcata, at the corner of 13th St. and F St. 46 Comment
  CAS-BOT-BC98770  Baccharis douglasii Frank W. Peirson 1926-7-13 7061 Humboldt Mad River, vicinity of Blue Lake Comment
  HSC69755  Baccharis douglasii Thomas W. Nelson 1977-9-22 3752 Humboldt At turnoff to Arcata Redwood Co. Comment
  SD39654  Baccharis glutinosa Edith A. Purer 1932-7-27 4139 Humboldt Samoa Comment
  UCR122378  Baccharis glutinosa George K. Helmkamp, E. A. Helmkamp 2001-7-8 7006 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  UC36796  Balsamorhiza deltoidea Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5369 Humboldt near Harris Comment
  HSC5189  Bellis perennis John A. Dubois 1962-5-23 20 Humboldt 20 miles East of Arcata Comment
  CAS-BOT-BC48154  Bensoniella oregona Joseph P. Tracy 1923-6-24 6363 Humboldt Bald Mountain - in cold wet meadow near high prairie 1066 Comment
  BLMAR689  Berberis aquifolium Jennifer Wheeler 2012-5-9 689 Humboldt Lacks Creek, West side on Barnum 762 Comment
  CAS-BOT-BC75684  Berberis nervosa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain Trail. 914 Comment
  SDSU13768  Berberis nervosa D. F. Howe 1963-5-26 3555 Humboldt 3.2 miles east of Orick on Bald Hill Road. 457 Comment
  UC1198382  Berberis nervosa Joseph P. Tracy 1924-4-27 6642 Humboldt along hwy near Ruby Creek (Willow Creek) 609 Comment
  CAS-BOT-BC75800  Berberis pinnata Doris K. Kildale 1927-7-17 3759 Humboldt Bug Creek. 792 Comment
  CAS-BOT-BC75802  Berberis pinnata Doris K. Kildale 1928-5-1 5990 Humboldt MacLillan Mountain. Bridgeville - Red Bluff road. Comment
  UCD136026  Blechnum spicant Gordon Leppig 1998-6-26 860 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. UTM zone 10, 4535N, 405E. 18 Comment
  POM247177  Boisduvalia glabella Joseph P. Tracy 1934-7-9 13349 Humboldt Dobbyn Creek 152 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
  HSC48731  Boschniakia strobilacea J. Pageau, T. Jimerson, W. Wisler, A. Regalis 1979-6-13 521 Humboldt Off Forest Rd. 10N05, SE slope of Hopkins Butte 1037 Comment
  HSC56319  Boykinia major Overton, Butler 1979-8-2 12658 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC420269  Boykinia occidentalis Harley P. Chandler 1901-6-1 1501 Humboldt Klamath River 426 Comment
  CAS-BOT-BC420256  Boykinia occidentalis Henry M. Pollard 1948-7-23 s.n. Humboldt Perch Creek canyon, near Orleans Comment
  HSC41849  Brassica rapa K. Irwin 1977-4-23 281 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC103008  Briza maxima J. P. Smith 2014-5-20 13850 Humboldt Samoa Peninsula 6 Comment
  HSC66126  Briza minor J. P. Smith, Steve Selva 1970-6-14 3825 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC1103342  Briza minor Joseph P. Tracy 1919-5-31 5141 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC184146  Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton; Northern Coast Region 30 Comment
  CAS-BOT-BC486504  Brodiaea stellaris Doris K. Kildale 1925-6-14 681 Humboldt Head of South Yager. bald hills 914 Comment
  HSC35968  Brodiaea stellaris Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1952 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  JEPS513  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1927-6-8 8111 Humboldt Trinidad 3 Comment
  CAS-BOT-BC144348  Bromus W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  SEINET4345214  Bromus carinatus J. B. Davy 1899-6-11 5408 Humboldt Summit above Hubbard Station Comment
  HSC103006  Bromus carinatus var. carinatus J. P. Smith 2014-5-23 13485 Humboldt Along the Hammond Trail north of Murray Road in McKinleyville 17 Comment
  UC37673  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  UC526863  Bromus carinatus var. carinatus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9047 Humboldt near Blake Lookout (Northern Coast Ranges. South Fork Mountain, along summit); Northern Coast Ranges. South Fork Mountain 1737 Comment
  UCD59273  Bromus carinatus var. carinatus A. H. Murphy 1951-3-1 6 Humboldt 2 miles north of Petrolia. Comment
  UCD59082  Bromus carinatus var. marginatus Joseph P. Tracy 1950-6-15 18786 Humboldt Mail Ridge. North of Harris 7 miles. 1036 Comment
  HSC9294  Bromus diandrus R. T. Forester 1963-4-30 53 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  RSA34310  Bromus diandrus L. Larsen 1935-5-6 s.n. Humboldt [no additional locality data provided] Comment
  CAS-BOT-BC155428  Bromus hordeaceus Doris K. Kildale 1929-5-26 9132 Humboldt Klamath River at Orleans. 152 Comment
  HSC79464  Bromus hordeaceus Kenneth Clark 1980-4-18 610 Humboldt Along access trail to Dead Man's Gulch, above gulch. 137 Comment
  HSC98699  Bromus hordeaceus Cara Witte 2007-5-23 98 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.5 miles south of intersection with 5N04 and 4N32E. 1402 Comment
  UC1131062  Bromus hordeaceus H. S. Yates 1936-6-17 5716 Humboldt near Burr Valley 914 Comment
  HSC99460  Bromus orcuttianus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 114 Humboldt Near North Trinity Mtn., 11. 9 mi. E of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest 1372 Comment
  UCD59545  Bromus rubens Joseph P. Tracy 1948-6-13 18053 Humboldt Harris. 762 Comment
  RSA126835  Bromus sterilis H. S. Yates 1936-5-17 5714 Humboldt Near Burr valley; South Fork Pk. 915 Comment
Read comments
Apr 6 2017
  UC552678  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt Northern Coast Ranges, French Camp Ridge French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  HSC40688  Bromus tectorum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2871 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  UC212890  Bromus tectorum Joseph P. Tracy 1919-5-31 5173 Humboldt Northern Coast Ranges, at mouth of Willow Creek, tributary of Trinity River Willow Creek; Northern Coast Ranges, Willow Creek 152 Comment
  HSC39171  Bromus vulgaris D. E. Anderson, J. P. Smith 1971-6-28 - 1231 Humboldt Along Mad River, 2 mi. S of Blue Lake Comment
  HSC58810  Bromus vulgaris G. L. Clifton, Griswold 1979-8-1 11988 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  JEPS75417  Bromus vulgaris W. L. Jepson 1932-7-27 16422 Humboldt Bull Creek 106 Comment
  UC34135  Bromus vulgaris Joseph Burtt Davy 1899-6-10 5406 Humboldt Hubbard's Station Comment
  CAS-BOT-BC273303  Cacaliopsis nardosmia Doris K. Kildale 1926-4-18 1776 Humboldt McLellan [McClellan] Mountain 822 Comment
  UC1191446  Cakile edentula Malcolm A. Nobs, S. Galen Smith 1949-8-11 1337 Humboldt e shore of Stone Lagoon Stone Lagoon Comment
  CAS-BOT-BC36864  Cakile edentula var. edentula Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-11 1337 Humboldt At easten shore of Stone Lagoon. Comment
  HSC39791  Cakile maritima Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay Comment
  HSC31340  Cakile maritima Larry E. DeBuhr, G. Wallace 1972-5-22 608 Humboldt Prairie Creek Redwoods State Park Comment
  UC1145051  Calamagrostis foliosa Joseph P. Tracy 1936-6-9 14899 Humboldt at bridge 3 mi e Petrolia (bluff bank of river); Mattole River 30 Comment
  UC1146639  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1728 Humboldt Mattole River Comment
  HSC104058  Calandrinia ciliata M. F. Norman 2015-4-11 16 Humboldt Arcata, Ma-le'l Dunes Comment
  HSC95579  Calandrinia ciliata Andrea Pickart 2002-3-14 6 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  CAS-BOT-BC32372  Callitriche trochlearis Stuart Kimball Harris; Joseph Prince Tracy; Harry Stanley Yates 1936-6-17 3454 Humboldt NW slopes of Buck Mountain 822 Comment
  CAS-BOT-BC80386  Calocedrus decurrens Doris K. Kildale 1926-8-31 2606 Humboldt Mattole River Valley, Geo. H. Mineis Ranch Comment
  CAS-BOT-BC80388  Calocedrus decurrens Doris K. Kildale 1926-8-22 2578 Humboldt French Camp on Orick - Martin's Ferry Road 731 Comment
  SBBG28816  Calocedrus decurrens D. K. Kildale 1926-8-15 2522 Humboldt Willow Crk Flat 152 Comment
  UC1005668  Calocedrus decurrens Frank W. Gould 1939-5-30 827 Humboldt about 25 mi due e of Eureka (top of Horse Mountain); Horse Mountain 365 Comment
  UC502900  Calocedrus decurrens Joseph P. Tracy 1932-7-13 10499 Humboldt open ground at Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC488451  Calochortus amabilis M. S. Jussel 1931-5-2 n.s. Humboldt Sylvandale, 8 miles N. of Barbarville Comment
  UCD18587  Calochortus amabilis Roman Gankin 1956-3-17 107 Humboldt off US Hwy 101, south boundary of Jenson Grove, near creek. Comment
Read comments
Feb 17 2006
  HSC48760  Calochortus coeruleus Brad Klipfel 1973-6-10 74 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74317  Calochortus elegans var. nanus M. A. Baker 1980-7-22 3061 Humboldt Near Salmon Mtn. 1820 Comment
  HSC34998  Calochortus tolmiei Thomas W. Nelson 1975-5-24 1879 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1197683  Calochortus tolmiei Harold E. Parks and Joseph P. Tracy 1934-6-27 11071 Humboldt Grouse Mt. 1432 Comment
  CAS-BOT-BC494359  Calochortus tolmiei W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  CAS-BOT-BC494366  Calochortus tolmiei H. C. Cantelow 1941-4-19 36 Humboldt 2 1/2 mi. n. e. of Cape Town. Open hillside above ocean on rd. to Ferndale from Patrolia. Comment
  CAS-BOT-BC496520  Calochortus tolmiei Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka 762 Comment
  POM273040  Calycadenia ciliosa H. M. Pollard 1945-8-31 s.n. Humboldt Orleans to Somes Bar, east side of Klamath River. Comment
  CAS-BOT-BC273311  Calycadenia fremontii H. M. Hall 1930-10-1 12922 Humboldt Trinity River at Willow Creek Comment
  CAS-BOT-BC273318  Calycadenia fremontii Joseph P. Tracy 1938-8-14 16117 Humboldt South Fork of Trinity River 304 Comment
  CAS-BOT-BC275364  Calycadenia truncata var. truncata G. D. Carr 1974-9-12 784 Humboldt 5.3 miles SW of Somes Bar, 2.8 miles NE of Orleans on Highway 96 214 Comment
  CAS-BOT-BC275366  Calycadenia truncata var. truncata Doris K. Kildale 1925-7-4 982 Humboldt Redwood Creek at [Bern?'s] Comment
  HSC34488  Calypso bulbosa J. D. Ackerman 1975-5-3 436 Humboldt 1 mi. E of Blue Lake, along Hwy. 299 Comment
  UC1196471  Calypso bulbosa J. P. Tracy 1901-4-26 1041 Humboldt immediate vicinity of Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  HSC39107  Calyptridium monospermum D. E. Anderson, J. P. Smith 1971-6-18 - 1090 Humboldt Horse Mtn. Comment
  HSC54024  Calyptridium monospermum Griswold, Butler 1979-7-12 7193 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC97630  Calyptridium monospermum Cara Witte 2007-6-5 214 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  SEINET181238  Calystegia Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-9 15240 Humboldt Clam Beach 15 miles North Eureka Comment
  CHSC68784  Calystegia sepium subsp. limnophila Vernon Oswald 1997-6-5 8530 Humboldt Arcata Oxidation Ponds on South G St., south of Hwy 255. 6 Comment
  CDA39890  Calystegia silvatica subsp. disjuncta Gordon Leppig 2001-7-1 1578 Humboldt Northern California - North Coast Region; Eureka, Waterfront Drive, just behind and 100 m north of the Humboldt County Library. 0 Comment
  HSC103975  Calystegia soldanella C. Reynolds 2015-4-12 30 Humboldt Along Freshwater Beach, north of the Kuchel Visitor Center 1 Comment
  UC153985  Calystegia soldanella J. P. Tracy 1901-8-7 1274 Humboldt sand hills of Ocean Beach at Samoa (opp. Eureka); , opp. Eureka Comment
  UC146194  Camassia quamash Joseph P. Tracy July 1908 2903 Humboldt near Low Gap (between Van Duzen and Mad Rivers, opposite Dinsmore's); Northern Coast Ranges 609 Comment
  HSC46958  Camissonia cheiranthifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9202 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  HSC64502  Camissonia cheiranthifolia J. P. Smith 1971-10-6 4944 Humboldt End of Murray Rd. in McKinleyville. Comment
  POM254099  Camissonia cheiranthifolia subsp. cheiranthifolia A. H. Harris, S. K. Harris, Clarence Crane Jr. 1939-8-23 970 Humboldt Samoa Comment
  HSC78087  Camissonia strigulosa L. P. Janeway, Amy Eisenberg 1984-4-24 745 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven Rds. and E of the Willow patch 3 Comment
  CAS-BOT-BC160239  Camissoniopsis cheiranthifolia subsp. cheiranthifolia C. C. Harris; S. K. Harris; Clarence Crane, Jr. 1939-8-23 s.n. Humboldt On beach-sand at Samoa Comment
  CHSC1144  Camissoniopsis cheiranthifolia subsp. cheiranthifolia M. Underhill 1952-7-13 Humboldt Seashore. 0 Comment
  RSA456172  Campanula prenanthoides Anstruther Davidson 1918-07 3350 Humboldt Eel River. Comment
  SEINET10462971  Campanula prenanthoides Pollard 1948-7-23 POLLARD s.n. Humboldt Reece Point near Orleans Comment
  SEINET10463219  Campanula prenanthoides Shields 1955-8-5 SHIELDS s.n. Humboldt 3 MI NW OF WEOTT, MOIST HILLSIDE Comment
  HSC74737  Campanula scouleri Gail Newton 1981-7-23 2280 Humboldt Near Bug Creek Butte. 1350 Comment
  SEINET10463516  Campanula scouleri Overton 1979-7-23 OVERTON 9497 Humboldt NR TITLOW HILL, WILLOW CR. QUAD., NR WILLOW CR. EVERGREEN CONIFER FOREST, SEEPAGE 1280 Comment
  JEPS11738  Campanula scouleri W. L. Jepson 1902-7-30 2128 Humboldt Three Creeks to Redwood Creek 914 Comment
  UC168957  Campanula scouleri Joseph P. Tracy 1908-6 2858 Humboldt opposite Buck Mountain (in woods); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC48835  Cardamine californica Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 47 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  JEPS79885  Cardamine californica var. sinuata Joseph P. Tracy 1937-3-21 15233 Humboldt 2 mi w. Bridgeville 198 Comment
  HSC104453  Cardamine oligosperma Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 5 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  CDA6909  Carduus tenuiflorus J. P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow on Bald Mountain. Comment
  SEINET10823822  Carex A. Arthur Heller 1923-7-10 Heller 13797 Humboldt Wet soil along the Eel river between Scotia and Pepperwood in the redwood belt. Comment
  CAS-BOT-BC17794  Carex amplifolia Joseph Prince Tracy 1935-6-23 13986 Humboldt French Camp Ridge. 1066 Comment
  RSA32725  Carex aquatilis var. dives A. A. Heller 1930-8-4 s.n. Humboldt Little River. Comment
  JEPS109966  Carex arcta Dean W. Taylor 2006-8-3 19575 Humboldt Snow Camp Lake; northwestern end of the lake 1396 Comment
  UC1103082  Carex athrostachya Joseph P. Tracy 1933-8-30 13019 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC19437  Carex bolanderi Robert F. Thorne; P. Everett 1965-8-5 35128 Humboldt Wailaki Recreation Site. 518 Comment
  HSC98962  Carex bolanderi Cara Witte 2008-7-16 913 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC194802  Carex bolanderi Joseph P. Tracy 1914-7-5 4549 Humboldt Bald Mountain, between High Prairie and Snow Camp 1066 Comment
  CAS-BOT-BC34010  Carex brevicaulis Joseph Prince Tracy 1939-5-7 16276 Humboldt Sand Dunes, near Samoa, on Humboldt Bay. 6 Comment
  CAS-BOT-BC34379  Carex cusickii Joseph Prince Tracy 1938-7-6 16023 Humboldt Big Lagoon. 6 Comment
  CAS-BOT-BC34437  Carex deflexa var. boottii Joseph Prince Tracy 1935-6-2 13921 Humboldt Big Lagoon. 30 Comment
  CAS-BOT-BC34981  Carex densa Joseph Prince Tracy 1927-5-30 8095 Humboldt Northern Coast Ranges.Garberville. 121 Comment
  HSC76837  Carex exsiccata L. P. Janeway 1982-6-12 4 Humboldt Dry Lagoon 3 Comment
  CAS-BOT-BC19966  Carex exsiccata Joseph Prince Tracy 1934-8-14 13574 Humboldt North Coast Ranges. Alton; Along Van Duzen River. 30 Comment
  CAS-BOT-BC20010  Carex feta L. R. Abrams 1918-6-16 7164 Humboldt Willow Creek. Comment
  CAS-BOT-BC20012  Carex feta H. D. Ripley; R. C. Barneby 1945-6-16 6823 Humboldt NW of Harris. 883 Comment
  UC2015873  Carex feta Joy Mastrogiuseppe, Tom Nelson 1986-7-22 4347 Humboldt Coast Range, Burr Valley area. 'False Burr Valley' Comment
  CAS-BOT-BC146592  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Phillipsville; facing South Fork of Eel River 121 Comment
  UC50821  Carex harfordii J. P. Tracy 1900-7-4 873 Humboldt opposite Eureka (sand hills of Ocean Beach); Samoa Comment
  HSC98937  Carex interior Cara Witte 2008-7-30 971 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  UC562263  Carex jonesii Joseph P. Tracy 1935-7-26 14257 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  SEINET2430055  Carex laeviculmis Joseph P. Tracy 1929-7-4 8607 Humboldt French Camp Ridge 1070 Comment
  POM126517  Carex lenticularis var. limnophila Joseph P. Tracy 1923-6-17 6275 Humboldt Big Lagoon 6 Comment
  HSC44035  Carex leptopoda Thomas W. Nelson, Jane P. Nelson 1977-7-1 3580 Humboldt Along road, N from Alder Springs 1463 Comment
  UC1103588  Carex luzulina var. ablata Joseph P. Tracy 1923-6-24 6367 Humboldt Bald Mountain, near High Prairie Northern Coast Ranges 1066 Comment
  CAS-BOT-BC539862  Carex mendocinensis Alice Eastwood; John Thomas Howell 1937-6-24 4866 Humboldt 5 mi E of Berry Summit Comment
  HSC102156  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1064 Humboldt Patterson Meadows 1555 Comment
  HSC34959  Carex multicaulis Thomas W. Nelson 1975-5-24 1869 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC249512  Carex multicaulis Joseph P. Tracy 1922-4-30 6006 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC709391  Carex multicaulis Joseph P. Tracy 1941-4-11 16857 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC562666  Carex multicostata Joseph P. Tracy 1935-5-25 13865 Humboldt Fort Seward 106 Comment
  UC709322  Carex multicostata Joseph P. Tracy 1939-7-9 16316 Humboldt 1 mi n Murphy Meadows; Bald Mt. 914 Comment
  UC1103621  Carex nudata Joseph P. Tracy 1933-5-18 12194 Humboldt 6 mi W of Blue Lake (Mad River) 15 Comment
  CAS-BOT-BC119308  Carex obnupta Robert F. Thorne; P. Everett 1965-8-7 35199 Humboldt Big Lagoon, at edge of bog at S end of lagoon. Comment
  HSC40258  Carex obnupta Linda M. Barker 1976-4-30 1417 Humboldt 3 mi. W of Arcata Comment
  UC830188  Carex obnupta L. R. Abrams 1916-7-18 6083 Humboldt Arcata to Trinidad Comment
  UCD140701  Carex obnupta Gordon Leppig 1998-6-26 858 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. 18 Comment
  CAS-BOT-BC119224  Carex pachystachya Joseph Prince Tracy 1935-6-23 13984 Humboldt French Camp Ridge. 1066 Comment
  UC562643  Carex pachystachya Joseph P. Tracy 1932-7-14 10548 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC119167  Carex pansa W. R. Dudley 1899-6-1 s.n. Humboldt Penninsula opposite Eureka. Comment
  HSC58704  Carex rostrata Terry Griswold, Butler 1979-7-11 7097 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  CAS-BOT-BC28310  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-17 10675 Humboldt Trinity Summit, Wet meadow heading into Devil's Hole. 1828 Comment
  HSC71729  Carex serratodens M. A. Baker 1980-6-26 2452 Humboldt Near Sims Creek 610 Comment
  UC1103585  Carex serratodens Joseph P. Tracy 1925-5-30 7049 Humboldt McClellan Mountain Northern Coast Ranges 822 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
  HSC102155  Carex subfusca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1063 Humboldt Patterson Meadows 1555 Comment
  HSC103143  Carex subfusca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1154 Humboldt Patterson Meadows 1555 Comment
  HSC44031  Carex subfusca Thomas W. Nelson, Jane P. Nelson 1977-9-3 3728 Humboldt Along creek draining N end of pond above Alder Springs 1137 Comment
  SEINET3910196  Carex tracyi Thomas W. Nelson, Jane P. Nelson 1978-6-10 4418 Humboldt Eureka Quad. Second growth redwood forest behind Eureka Seventh Day Advent Church on F St.; 0 61 Comment
  CAS-BOT-BC115568  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-22 4736 Humboldt Near Alder Point Comment
  UC562246  Carex tumulicola Joseph P. Tracy 1932-5-1 9853 Humboldt vicinity Garberville; Redway 121 Comment
  UC1103114  Carex tumulicola Joseph P. Tracy 1927-7-21 8288 Humboldt Carlotta Northern Caost Ranges 60 Comment
  UC202501  Carex tumulicola Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3591 Humboldt Hydesville Northern Coast Ranges 60 Comment
  CAS-BOT-BC115536  Carex unilateralis Joseph Prince Tracy 1938-7-5 16007 Humboldt Carlotta. Wet place in open flat by old Strong's District School House, 5 mi E of town. 45 Comment
  UC562627  Carex unilateralis Joseph P. Tracy 1933-6-9 12539 Humboldt Fortuna 18 Comment
  UC1103609  Carex vesicaria var. major Joseph P. Tracy 1938-7-7 16033 Humboldt Cold Springs Grouse Mountain 1432 Comment
  HSC99012  Castilleja affinis subsp. affinis C. Witte 2007-5-10 19 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1368 Comment
  HSC45090  Castilleja affinis subsp. litoralis R. Sutherland 1978-4-25 11 Humboldt Bluff at Shelter Cove. 34 Comment
  SBBG7047  Castilleja ambigua subsp. ambigua H. and M. Dearing 1939-5-25 3430 Humboldt beach N of Loleta Comment
  UC275302  Castilleja ambigua subsp. ambigua R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  HSC45625  Castilleja applegatei Diane L. Reed 1978-4-22 20 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  JEPS3617  Castilleja applegatei subsp. martinii Clyde Ritchie Bell 1951-4-21 Humboldt about 4 mi n Orleans (along Calif Hwy 96 (Klamath River road)) Comment
  JEPS8625  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1935-7-24 14203 Humboldt near Trinity Summit Ranger Station; Trinity Summit 1828 Comment
  UC1011932  Castilleja applegatei subsp. pinetorum F. W. Pennell and J. P. Tracy 1940-7-7 26097 Humboldt w of Salyer; Grouse Mountain 1493 Comment
  HSC20838  Castilleja attenuata R. T. Forester 1963-5-6 43 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  UC582569  Castilleja attenuata Joseph P. Tracy 1932-5-1 9887 Humboldt vicinity Garberville 121 Comment
  HSC39093  Castilleja exserta subsp. exserta R. Sutherland 1976-6-8 1 .8676 Humboldt 407 Comment
  CAS-BOT-BC244884  Castilleja miniata Thomas W. Nelson; Jane P. Nelson 1979-7-11 5032 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit Comment
  UC582475  Castilleja pruinosa Joseph P. Tracy 1926-6-27 7676 Humboldt Horse Mountain; North Coast Ranges 1432 Comment
  UC902244  Castilleja pruinosa Joseph P. Tracy 1949-6-25 18342 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC168991  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1901-5-28 1244 Humboldt Redwood Creek North Coast Ranges (at Bair's ranch) 121 Comment
  HSC41322  Ceanothus arcuatus Brad Klipfel 1974-9-2 525 Humboldt Horse Mtn. Comment
  HSC73442  Ceanothus cuneatus Gail Newton 1980-7-11 1311 Humboldt Near Red Mtn. 1341 Comment
  CAS-BOT-BC49659  Ceanothus foliosus var. foliosus Joseph P. Tracy 1937-5-30 15314 Humboldt 3 miles south of Bridgeville 457 Comment
  CAS-BOT-BC63681  Ceanothus integerrimus L. B. Kildale 1928-5-19 5138 Humboldt Chalk Mountain. Comment
  HSC36681  Ceanothus parryi R. Sutherland 1975-4-22 8 .22475 Humboldt E of China Creek at county rd. 207 Comment
  OBI10389  Ceanothus parryi Carl B. Wolf 1941-7-27 11086 Humboldt N Coast Ranges, 5.8 mi W Maple Crk on rd to Freshwater 610 Comment
  UCD112499  Ceanothus parryi B. L. Kay 1955-6-2 s.n. Humboldt Wagner Ranch, 5 miles southwest of Graberville. Comment
  UCSB11762  Ceanothus parryi Neuns, R. 1940-7-13 Humboldt 3 miles south of Alder Point 548 Comment
  HSC23274  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1291 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  RSA46726  Ceanothus pumilus Doris K. Kildale 1937-8-15 15334 Humboldt High Divide Comment
  CAS-BOT-BC52952  Ceanothus thyrsiflorus Kenneth Clark 1980-6-14 684 Humboldt Shelter Cove - Point Delgada quad. Above north fork Dead Man's Gulch. 213 Comment
  CAS-BOT-BC52995  Ceanothus thyrsiflorus C. Hart Merriam 1920-8-29 s.n. Humboldt Lower Eel River between Dyerville and Pepperwood Comment
  HSC18337  Ceanothus thyrsiflorus H. E. Parks Apr 1934 4229 Humboldt Spruce Cove, Trinidad 64 Comment
  HSC23116  Ceanothus thyrsiflorus Norman Dennis 1965-6-19 124 Humboldt 0.25 mi S and 1.0 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  HSC37609  Ceanothus thyrsiflorus R. Sutherland 1975-5-8 11 .8575 Humboldt Along county rd. near Mattole River, 6 mi W of Honeydew Comment
  RSA25755  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11091 Humboldt 1.5 miles N of Loleta along the redwood Hwy, 23 Comment
  RSA301654  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 4343 Humboldt Summit of Trinidad Head. 46 Comment
  RSA46882  Ceanothus thyrsiflorus Doris K. Kildale 1926-6-18 2399 Humboldt Gold Bluffs. Comment
  RSA77350  Ceanothus thyrsiflorus F. W. Peirson 1941-7-28 13106 Humboldt at the Hwy Observation point about 1 mile S of Orick Comment
  UC668162  Ceanothus thyrsiflorus Joseph P. Tracy 1937-5-30 15315 Humboldt Bridgeville 198 Comment
  HSC56259  Ceanothus velutinus var. velutinus G. L. Clifton, Griswold 1979-8-2 12410 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC204750  Centaurea cyanus Joseph P. Tracy 1918-7-1 4963 Humboldt along river from South Fork to Scotia, Holmes Flat Eel River; North Coast Ranges, , Holmes Flat 60 Comment
  CDA39219  Centaurea maculosa Weylan Shaw 2013-8-2 PDR# 120 P06003643 Humboldt Vicinity of Blue Lake, near the Mad River. Comment
  UC1222950  Centaurea melitensis Joseph P. Tracy 1943-11-28 17455 Humboldt bar at mouth of Van Duzen Eel River; , Van Duzen Comment
  RSA34006  Centaurea melitensis J. Wendell Howe 1933-7-26 s.n. Humboldt Mad River near Blue Lake Comment
  SEINET202640  Centaurium erythraea Unknown 1954-8-10 4755 Humboldt Along US Highway 101, one mile south of Garberville. 213 Comment
  HSC90328  Centaurium erythraea Jean Hanson 1980-6-22 104 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka, W end of island, 50 ft. NW of dike Comment
  BLMAR319  Centaurium tenuiflorum Jennifer Anthony-Wheeler 2002-7-23 319 Humboldt Headwaters Forest Reserve, salmos pass parking lot 353 Comment
  CAS-BOT-BC279138  Centromadia pungens subsp. pungens Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC666978  Cephalanthera austiniae Joseph P. Tracy 1937-7-24 15526 Humboldt 2 mi. s.e. Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  JEPS64308  Cephalanthera austiniae Milo S. Baker 1923-7-26 110 Humboldt head of S. Fork Yager Creek on Mt. West; , S. Fork Yager Creek 822 Comment
  SEINET11942971  Cerastium arvense J. P. Tracy 1950-1 18820 Humboldt Huestis Rock, on NE side of ridge, Mail Ridge, N of Harris 7 mi Comment
  RSA239744  Cerastium glomeratum Larry E. DeBuhr 1973-4-23 987 Humboldt Richardson Grove Redwood State Park. Comment
  HSC73149  Cercis occidentalis M. A. Baker 1980-5-18 1344 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC135533  Cercocarpus betuloides var. betuloides L. R. Abrams; Rimo Bacigalupi 1922-6-25 8226 Humboldt 6 mi. north of Garberville Comment
  UC154257  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1903-5-23 1904 Humboldt along Eel River, at Alder Point Eel River; Northern Coast Ranges, , Alder Point 152 Comment
  HSC45913  Chamaecyparis lawsoniana Jerome Peterson 1978-5-1 10 Humboldt Near corner of 8th and G St. in Arcata Comment
  SBBG367  Chamaecyparis lawsoniana J. W. Howe 1938-3-30 Humboldt Humboldt County [no specific locality] Comment
  UCD103644  Chamerion angustifolium subsp. circumvagum E. B. Alexander 1959-7-23 43 Humboldt California Forest and Range Experiment Station. 1 mile NW of Trinidad. Comment
  UC1197019  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1934-7-7 13307 Humboldt Elk River Valley 30 Comment
  HSC38999  Cheilanthes gracillima Thomas W. Nelson, Jane Nelson 1976-5-31 2660 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  HSC99115  Cheilanthes gracillima Cara Witte 2008-9-27 1044 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1483 Comment
  UC582918  Chenopodium botrys P. A. Munz 1936-8-9 14334 Humboldt Williams Redwood Grove South Fork of Eel River Comment
  UCD98277  Chenopodium macrospermum Malcolm A. Nobs; S. Galen Smith 1949-8-11 1340 Humboldt eastern shore of Stone Lagoon. Comment
  UC179956  Chenopodium murale Joseph P. Tracy 1914-6-26 4519 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS59734  Chenopodium pumilio W. L. Jepson 1932-7-26 16400 a Humboldt Bull Creek 106 Comment
  CAS-BOT-BC451381  Chimaphila menziesii L. B. Kildale 1930-8-3 10363 Humboldt Chaparel Mt. at Bug Creek 914 Comment
  CAS-BOT-BC451388  Chimaphila menziesii S. Matthews; M. Goering; R. James 1985-5-10 060 Humboldt Gray Falls Campground 240 Comment
  HSC45428  Chimaphila menziesii Thomas W. Nelson, Jane Nelson 1977-6-19 3501 Humboldt Along ridge N of pond above Alder Springs 1585 Comment
  HSC55158  Chimaphila umbellata Gilbert Muth 1979-8-1 12119 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC41353  Chrysolepis chrysophylla Brad Klipfel 1974-9-2 546 Humboldt Horse Mountain Comment
  UC519307  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1933-8-6 12933 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  CAS-BOT-BC36476  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1934-8-29 13641 Humboldt Northern Coast Ranges. South Fork Mountain, along summit near Blake lookout 1706 Comment
  UC667996  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1936-8-7 15117 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  HSC36083  Cicuta douglasii Michael Chase 730506 .4 Humboldt W end of Big Lagoon Comment
  CAS-BOT-BC284403  Cirsium arvense Alice Eastwood 1921-7-21 10659 Humboldt Carlotta Comment
  CAS-BOT-BC284442  Cirsium brevistylum John Thomas Howell 1931-6-17 6720 Humboldt 8 miles n. of Arcata Comment
  CDA1175  Cirsium cymosum T. R. Haig 1960-6-16 s.n. Humboldt Kneeland, near quarry. 0 Comment
  RSA0070620  Cirsium douglasii var. breweri J. M. Tucker 1948-9-3 1850 Humboldt On Horse Mountain at junction of road to Grouse Mountain and road to Horse Mountain Mine. 1463 Comment
  JEPS30422  Cirsium douglasii var. douglasii Peter H. Raven with R. Snow 1958-7-20 13647 Humboldt 3.8 mi s U.S. Highway 299 (along Titlow Hill Road) Comment
  HSC35871  Cirsium occidentale var. venustum Thomas W. Nelson 1975-7-30 2122 Humboldt Beside private road to Pilot Rock Comment
  HSC5401  Cirsium occidentale var. venustum D. G. Hauger 1967-7-15 27 Humboldt On Lone Star Ranch 610 Comment
  CAS-BOT-BC288722  Cirsium remotifolium Joseph P. Tracy 1934-7-6 13659 Humboldt Kneeland Prairie 762 Comment
  CDA1549  Cirsium remotifolium var. odontolepis W. Simas 1972-7-1 s.n. Humboldt Humboldt Redwoods State Park, forested area near Redcrest, about 6 mi. NW of Weott. 0 Comment
  UC668207  Cirsium remotifolium var. rivulare Joseph P. Tracy 1938-7-5 15999 Humboldt 5 mi e of town Carlotta (open flat by old Strong's District School House) 45 Comment
  HSC32535  Cirsium vulgare Thomas W. Nelson 1973-9-3 1127 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA418966  Cirsium vulgare Lyman Benson 1928-7-12 417 Humboldt Weott Ranger Station, Seaward N. Coast Mt. Range, South Fork Eel River Watershed. 61 Comment
  CAS-BOT-BC439048  Cistanthe monosperma Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt., near Orleans 1828 Comment
  CAS-BOT-BC228803  Cistanthe umbellata R. K. Gierisch; D. H. Esplin 1969-7-1 3528 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  CAS-BOT-BC160954  Clarkia amoena subsp. amoena Doris K. Kildale 1928-6-17 5233 Humboldt Miranda, south fork of Eel River Comment
  CAS-BOT-BC160956  Clarkia amoena subsp. amoena Doris K. Kildale 1926-6-27 2184 Humboldt McClellan Mountain 822 Comment
  CAS-BOT-BC160969  Clarkia amoena subsp. amoena P. A. Munz 1936-8-10 14339 Humboldt Little Van Duzen River, 15 mi. east of Bridgeville Comment
  HSC16234  Clarkia amoena subsp. huntiana S. V. Thompson 1967-7-23 11 Humboldt Near Mad River Bridge Comment
  HSC36785  Clarkia amoena subsp. huntiana Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-20 2037 Humboldt 3 mi. E of Dinsmore Comment
  RSA23649  Clarkia amoena subsp. huntiana Carl B. Wolf 1939-7-8 9520 Humboldt Devil s Gate on road to Petrolia; 1 mile inland 152 Comment
  UC1198509  Clarkia concinna subsp. concinna Joseph P. Tracy 1934-7-9 13335 Humboldt ridge 5 mi s Harris 762 Comment
  UC183698  Clarkia davyi Joseph P. Tracy 1912-7-21 3772 Humboldt Alton Northern Coast Region 30 Comment
  UC902179  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1944-7-3 17484 Humboldt Willow Creek Trinity River Valley 152 Comment
  OBI36368  Clarkia purpurea subsp. quadrivulnera David J. Keil 1983-7-1 17270 Humboldt Ca. 13 mi W of jctn US 101 along Bull Crk Flats Rd Comment
  UC1196987  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy July, 1908 2784 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 762 Comment
  UCR198252  Clarkia rubicunda Dean Kelch 2007-7-25 07- 507 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  HSC17686  Claytonia perfoliata Francis Winter 1960-4-24 Humboldt 2 mi. N of Hwy. 299, on Redwood Creek Rd. 396 Comment
  HSC78959  Claytonia perfoliata subsp. perfoliata L. P. Janeway, K. Berg 1984-4-11 726 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  HSC17695  Claytonia rubra subsp. depressa S. J. Hawks 1965-2-12 3 Humboldt N end of Eureka Airport Comment
  UC161025  Claytonia rubra subsp. depressa Joseph P. Tracy 1904-5-1 2048 Humboldt near Bucksport; Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC32145  Claytonia rubra subsp. rubra D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5610 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC32285  Claytonia saxosa D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5623 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  CAS-BOT-BC443890  Claytonia sibirica T. Gertrude Williamson 1924-7-10 s.n. Humboldt Arcata Comment
  HSC53904  Claytonia sibirica Griswold, Butler 1979-7-11 6905 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UC1537254  Claytonia sibirica Gordon H. True Jr. 1936-5-12 472 Humboldt 5 mi s Kneeland 457 Comment
  HSC17736  Claytonia sibirica P. W. Shields Jul 1955 Humboldt 1/2 mi. S of Weott Comment
  HSC4886  Claytonia sibirica J. O. Sawyer 1968-9-11 732 Humboldt Along Mill Creel 1524 Comment
  SD88361  Claytonia sibirica D. F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville 91 Comment
  CHSC42782  Clintonia andrewsiana R. N. Raynor 1935-5-22 Humboldt Ft. Seward. Comment
  RSA39092  Clintonia andrewsiana Philip A. Munz 1948-8-15 12359 Humboldt Van Duzen Redwood State Park. Comment
  RSA66979  Clintonia andrewsiana E. K. Balls 1951-5-8 16512 Humboldt 3.5 miles south of Myers, Highway 101. Comment
  HSC53895  Clintonia uniflora Griswold, Butler 1979-7-11 6400 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  JEPS26343  Collinsia heterophylla Joseph P. Tracy 1914-5-14 4464 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC582466  Collinsia heterophylla Joseph P. Tracy 1935-5-25 13896 Humboldt Dobbyn Creek 152 Comment
  UCR45410  Collinsia parviflora Barry Silver 1986-4-23 535 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC70957  Collinsia parviflora Thomas W. Nelson 1977-6-15 3432 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  HSC22842  Collinsia rattanii D. E. Anderson, J. P. Smith, J. O. Sawyer 1970-5-10 5063 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  JEPS25071  Collinsia sparsiflora var. arvensis Joseph P. Tracy 1904-4-3 2007 Humboldt immed. vicinity Eureka 0 Comment
  UC146169  Collomia grandiflora Joseph P. Tracy 1908-6 2872 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  HSC45408  Collomia heterophylla Thomas W. Nelson, Jane Nelson 1977-6-19 3517 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  HSC70922  Collomia heterophylla R. York 1980-5-18 571 Humboldt Near Black Mtn. 390 Comment
  HSC16923  Collomia heterophylla Anonymous 1957-4-27 123 Humboldt 5 mi. E of Honeydew 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
  UC1470711  Collomia heterophylla Barbara Ertter with Thomas J. Delendick 1987-5-16 6944 Humboldt on s side Hwy 299 above Willow Creek (ca 3 mi e of Berry Summit, ca 20 air mi e of Arcata, near large volcanic rock) 800 Comment
  CAS-BOT-BC157350  Comarum palustre Doris K. Kildale 1926-6-25 2173 Humboldt Big Lagoon Comment
  BLMAR298  Comarum palustre Jennifer Anthony-Wheeler 2002-7-23 298 Humboldt Headwaters Forest Reserve, growing in a pond with large floating logs 426 Comment
  HSC36297  Comarum palustre Dana A. Page 1973-11-24 Humboldt Crannell Rd. 0.5 mi. E of Hwy. 101, McKinleyville Comment
  UC1222614  Conium maculatum Joseph P. Tracy 1950-6-8 18768 Humboldt near Petrolia (Hills between town and ocean) Comment
  HSC69531  Conium maculatum R. Kalal 1980-6-1 4 Humboldt 0.25 mi. N of Hwy. 299, at Essex turnoff 15 Comment
  HSC49022  Convolvulus arvensis Patricia Shesgreen 1978-8-28 146 Humboldt At 11th and A St., Arcata Comment
  NY643129  Convolvulus arvensis H. N. Moldenke 1932-7-4 7135 Humboldt Comment
  CAS-BOT-BC286024  Conyza canadensis Doris K. Kildale 1925-9-6 1283 Humboldt Somes Bar 243 Comment
  JEPS23516  Coptis laciniata Joseph P. Tracy 1941-4-8 16856 Humboldt Willow Creek Canyon; along Trinity Hwy 762 Comment
  HSC99481  Corallorhiza maculata var. flavida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 140 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), between Six Rivers National Forest boundary and Box Camp. 1433 Comment
  UC1409054  Cordylanthus maritimus subsp. palustris Robert F. Thorne and P. Everett 1965-8-7 35209 Humboldt Samoa Peninsula 0 Comment
  UC147873  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1901-8-7 1257 Humboldt Samoa Northern Coast Region of California, region about Humboldt B 0 Comment
  UCR122376  Cordylanthus maritimus subsp. palustris George K. Helmkamp, E. A. Helmkamp 2001-7-8 7008 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  CAS-BOT-BC101147  Corethrogyne filaginifolia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  JEPS15870  Corethrogyne filaginifolia Joseph P. Tracy 1938-7-15 16059 Humboldt sandy fields at Bucksport (at Eureka); Eureka Comment
  CAS-BOT-BC209752  Cornus glabrata Doris K. Kildale 1926-8-15 2535 Humboldt Hoopa Mountain 579 Comment
  UC183574  Cornus glabrata Joseph P. Tracy 1913-6-21 4251 Humboldt Van Duzen R. just below Low Gap; Northern Coast Ranges, Van Duzen R. 762 Comment
  HSC99264  Cornus nuttallii T. Jimerson, J. Pageau 1979-6-13 548 Humboldt Near Onion Lake, close to the town of Orleans. 549 Comment
  JEPS50154  Cornus nuttallii W. L. Jepson 1936-8-11 17868 Humboldt <Philipsville> S. Fork Eel R., <Philipsville> Comment
  UC1196901  Cornus nuttallii Joseph P. Tracy 1935-4-20 13786 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CAS-BOT-BC212175  Cornus sericea Doris K. Kildale 1925-6-27 769 Humboldt Yager Creek near mouth. Comment
  UC183589  Cornus sericea subsp. sericea Joseph P. Tracy 1913-6-14 4125 Humboldt opposite Buck Mt. (Dinsmore's Ranch, Valley of Van Duzen R.); Northern Coast Ranges, Valley of Van Duzen R., Dinsmore's Ra 762 Comment
  UC1199210  Coronopus didymus Joseph P. Tracy 1932-10-30 10901 Humboldt Eel River, Alton to Fortuna Eel River; Northern Coast Region, Eel River 15 Comment
  RSA46863  Corylus cornuta var. californica Doris K. Kildale 1927-7-10 3734 Humboldt Gans Prairie, Bald Hills. Comment
  RSA697176  Corylus rostrata var. californica J. R. Bruff 1937-8-17 918 Humboldt Richardson Grove. Comment
  CAS-BOT-BC143486  Cotoneaster franchetii Peter F. Zika 2007-7-18 23172 Humboldt Near corner of C Street and 14th Street, Eureka (NCo, North Coast) 10 Comment
  UCD130891  Cotula coronopifolia Linda M. Barker 1976-7-5 1638 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC78083  Crassula aquatica L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 719 Humboldt N Spit of Humboldt Bay, BLM lands ('Coast Guard Reservation') 3 Comment
  UCD112977  Crataegus douglasii Louis C. Wheeler 1950-8-14 6780 Humboldt 5 mi. east of Shelter Core. Comment
  CAS-BOT-BC291488  Crepis capillaris David D. Keck; J. Clausen 1935-6-16 3397 Humboldt Orick Comment
  CAS-BOT-BC291492  Crepis capillaris Alice Eastwood 1923-8-16 12327 Humboldt Carlotta Comment
  JEPS36416  Crepis capillaris W. L. Jepson 1932-8-8 16531 Humboldt near Dyerville; Perrott Creek 304 Comment
  CAS-BOT-BC290588  Crepis capillaris A. A. Heller 1923-7-9 13777 Humboldt About 5 miles east of Arcata along the road to Blue Lake Comment
  CAS-BOT-BC291481  Crepis capillaris E. C. Johnston 1931-8-1 s.n. Humboldt Klamath River to Arcata Comment
  UC165199  Crepis monticola Joseph P. Tracy 1908-6 2915 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  UC1222677  Crocosmia X crocosmiiflora Joseph P. Tracy 1950-8-31 19344 Humboldt Eureka; at 3rd and I Streets Comment
  HSC58318  Cryptantha affinis Overton, Butler 1979-8-2 12606 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  SEINET12280692  Cryptantha affinis J. P. Tracy 1950-1 18956 Humboldt Friday Ridge 1219 Comment
  UC1239662  Cryptantha affinis Joseph P. Tracy 1935-7-23 14130 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC24717  Cryptantha intermedia Harley P. Chandler Jun 1901 1302 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC3589  Cryptantha torreyana H. E. Parks, J. P. Tracy 1934-6-27 11058 Humboldt Grouse Mtn. 1433 Comment
  UC1222267  Cryptantha torreyana Joseph P. Tracy 1949-8-11 18484 Humboldt 3 mi se Snow Camp; Twin Lakes 1463 Comment
  UC502914  Cupressus lawsoniana Joseph P. Tracy 1927-6-12 8141 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC562671  Cuscuta californica Joseph P. Tracy Jul 16 1930-Jul 19 1930 8912 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC906744  Cuscuta californica Joseph P. Tracy 1947-7-5 17776 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC562675  Cuscuta occidentalis Joseph P. Tracy 1930-8-17 9160 Humboldt Big Lagoon 3 Comment
  HSC59455  Cuscuta pacifica var. pacifica M. A. Ericksen 1979-5-18 302 Humboldt At edge of Humboldt Bay mud flats, 75 yards N of Arcata Redwood Company main gate, Hwy. 101 between Arcata and Eureka Comment
  UC562478  Cuscuta subinclusa Joseph P. Tracy 1931-6-20 9586 Humboldt Alton, along Van Duzen River North Coast Ranges, Van Duzen River 30 Comment
  UCD60075  Cynodon dactylon Joseph P. Tracy 1948-8-22 18108 Humboldt Vicinity of Carlotta. 30 Comment
  HSC3641  Cynoglossum grande A. H. Teshima 1963-3-10 5 Humboldt Moonstone Beach area Comment
  RSA24187  Cynoglossum grande C. B. Wolf 1941-3-2 9987 Humboldt N Coast Range. Bull Creek-Petrolia Road. 12 miles W of Redwood Highway. 457 Comment
  CAS-BOT-BC114625  Cyperus eragrostis Henry M. Pollard 1945-8-27 s.n. Humboldt Pond near Harley place. Comment
  SEINET200970  Cyperus melanostachyus Joseph P. Tracy 1920-8-15 5383 Humboldt Klamath River at Bluff Creek. 152 Comment
  CAS-BOT-BC113831  Cyperus niger var. capitatus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UC503060  Cystopteris fragilis Joseph P. Tracy 1932-7-17 10685 Humboldt head of Devil's Hole Trinity Summit; Klamath Mts. 1828 Comment
  CAS-BOT-BC70542  Cystopteris fragilis Ira L. Wiggins 1957-6-21 14138 Humboldt E side of road, 1 mi. S of Garberville Comment
  UCD136399  Cystopteris fragilis Lincoln Constance 1934-6-2 781 Humboldt Bull Creek Region, South Fork Eel River. Comment
  RSA1438  Cytisus monspessulanus E. R. Johnson 1929-08 1434 Humboldt Eel River. 91 Comment
  CAS-BOT-BC201008  Cytisus scoparius Henry M. Pollard 1947-8-26 s.n. Humboldt Near Orleans Comment
  RSA783324  Cytisus scoparius R. R. Halse 2010-3-25 7856 Humboldt Along US Hwy 101 ca. 9.7 miles S of Orick. 5 Comment
  CAS-BOT-BC189762  Dactylis glomerata Doris K. Kildale 1927-6-26 3591 Humboldt Patrick's Point. Comment
  CAS-BOT-BC189745  Danthonia californica Joseph P. Tracy 1935-6-23 13965 Humboldt French Camp Ridge. 1066 Comment
  SEINET200656 Image available Danthonia californica Joseph P. Tracy, H. E. Parks 1931-5-31 9548 Humboldt Kneeland Prarie. 792 Comment
  UCD60692  Danthonia californica var. americana A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3474 Humboldt 4 miles north of Bridgeville. Comment
  UCD60969  Danthonia californica var. americana J. T. Mallory 1955-6-7 112 Humboldt North end of Luke Prairie. 350 Comment
  UC1198471  Datisca glomerata Joseph P. Tracy 1912-8-3 3972 Humboldt in Valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  JEPS12214  Datura stramonium Lincoln Constance 1934-6-18 897 Humboldt border N. Dyerville Flat (R.R. Sta and P.O., Bull Creek region, near South Fork Eel River); South Fork Eel River, Bull Creek Region Comment
  UC32463  Daucus pusillus Harley P. Chandler May, 1901 1154 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 Comment
  CAS-BOT-BC9228  Delphinium decorum Mrs. H. C. Cantelow 1941-4-26 s.n. Humboldt 12 miles SW of Ferndale on road to Cape Mendocino Comment
  HSC101980  Delphinium decorum subsp. tracyi M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 877 Humboldt Patterson Meadows 1566 Comment
  HSC97592  Delphinium decorum subsp. tracyi Steven Lee 2004-4-26 29 Humboldt Horse Mtn., 5 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  HSC36240  Delphinium decorum subsp. tracyi John Rehling 1975-5-12 71 Humboldt Bald Hills Area, 2 mi. up Williams Ridge Rd. Comment
  POM126169  Delphinium decorum subsp. tracyi Joseph P. Tracy 1922-6-5 6082 Humboldt Head of S Yager Creek. 762 Comment
  UC668271  Delphinium glaucum Joseph P. Tracy 1935-7-25 14241 Humboldt lower end Brett Hole (along streams); Trinity Summit 1584 Comment
  CAS-BOT-BC10314  Delphinium hesperium E. K. Balls; L. W. Lenz 1956-6-12 21665 Humboldt 9.1 mi. NE from Blue Lake along U.S. Hwy. 299, Arcata to Willow Creek 487 Comment
  POM270763  Delphinium hesperium Lyman Benson 1928-7-10 422 Humboldt Fortuna , Seaward N Coast, Mouth of Eel River. 46 Comment
  HSC25007  Delphinium nudicaule D. E. Anderson 1965-5-1 3589 Humboldt W facing sheer cliff above Trinity River along Hwy. 96 Comment
  JEPS60594  Delphinium nuttallianum Joseph P. Tracy 1933-6-13 12570 Humboldt on road from Hoopa westward to Bair's (near summit); Hoopa Mountain 1066 Comment
  CAS-BOT-BC121967  Delphinium trolliifolium Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC35449  Deschampsia cespitosa J. D. Ackerman 1975-8-2 607 Humboldt Intersection of Indianola Cutoff and US Hwy 101. 3 Comment
  UCD61253  Deschampsia cespitosa Malcolm A. Nobs; S. Galen Smith 1949-8-3 1167 Humboldt 1 mile south of Fields Landing, Eel River Valley. 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-BC194338  Deschampsia cespitosa subsp. beringensis Joseph P. Tracy 1927-7-16 8257 Humboldt Mouth of Elk River, around Humboldt Bay, just south of Eureka 6 Comment
  UC922026  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1942-6-15 17128 Humboldt near Redcrest resort Englewood 91 Comment
  UC552716  Deschampsia danthonioides Joseph P. Tracy 1935-6-23 13969 Humboldt French Camp Ridge 1066 Comment
  HSC102102  Deschampsia elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1005 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC24253  Deschampsia elongata D. E. Anderson 1970-5-21 5081 Humboldt Scotia bluffs. Comment
  HSC26662  Deschampsia elongata J. P. Smith, Steve Selva 1970-6-14 3830 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC53938  Deschampsia elongata Griswold, Butler 1979-7-11 6970 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  RSA256709  Deschampsia elongata D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-17 5712 Humboldt Mc Keown Ranch North of Dinsmore Comment
  UCD63575  Deschampsia elongata Harley P. Chandler 1901-6-1 1331 Humboldt Hupa Indian Reservation. 304 Comment
  HSC31568  Dicentra formosa Glenn McGourty 1974-5-11 38 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  UCR19332  Dicentra formosa Rosemary Leen 1977-4-2 s.n. Humboldt Hwy 299, east of Blue Lake. 1220 Comment
  RSA433571  Dicentra formosa subsp. formosa Maude Minthorn s.n. Humboldt Ferndale. Comment
  HSC98538  Dicentra pauciflora Cara Witte 2008-6-9 703 Humboldt Off National Forest 1, near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 mile west of the road. 1506 Comment
  UC35008  Dicentra uniflora W. C. Blasdale 1896-1 Humboldt Top of South Fork Mountain Comment
  SEINET200955 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1942-6-15 17153 Humboldt Moist place on grassy bench 1/2 miles NE of Garberville Comment
  UC1198170  Dichelostemma capitatum Joseph P. Tracy 1933-6-18 12607 Humboldt e of Redwood Creek (on Trinity Highway); Berry's Mt. 762 Comment
  HSC45650  Dichelostemma capitatum subsp. capitatum Diane L. Reed 1978-4-22 15 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  RSA167425  Dichelostemma capitatum subsp. capitatum Joseph P. Tracy 1951-5-20 19404 Humboldt Near the rockpile toward Ashfield Buttem Kneeland Prairie. Comment
  RSA756869  Dichelostemma capitatum subsp. capitatum Barbara Ertter, Thomas J. Delendick 1987-5-16 6927 Humboldt Vista Point just W of Berry Summit on Highway 299, ca. 15 air miles E of Arcata. 915 Comment
  HSC60039  Dichelostemma ida-maia M. A. Baker 1978-5-6 495 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC70688  Dichelostemma ida-maia Gail Newton 1980-7-15 1571 Humboldt Near Sims Mtn. 1311 Comment
  CAS-BOT-BC501013  Dichelostemma ida-maia Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  CAS-BOT-BC501021  Dichelostemma ida-maia Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  RSA12440  Dichelostemma ida-maia Carl B. Wolf 1934-7-2 5853 Humboldt 2 miles from Bald Mt. on road to Korbel. 762 Comment
  UC175926  Dichelostemma ida-maia Joseph P. Tracy 1913-6-20 4227 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  SD58400  Dichelostemma venustum Milo S. Baker 1923-7-28 138 d Humboldt Locality given as: growing within a few feet of Brodiaea Collector's #137.; not in our database at present 3/19/08; ?Baker Collector's #137 in our collection. Comment
  HSC103003  Digitalis purpurea J. P. Smith 2014-5-26 13842 Humboldt Along the Hammond Trail north of Murray Road in McKinleyville 30 Comment
  UC30077  Disporum hookeri Harley P. Chandler May, 1901 1089 Humboldt North Coast Ranges 152 Comment
  POM319490  Disporum smithii Patricia Wilder 1968-8-22 4424 Humboldt Coastal rain forest 7 miles S of Ferndale on Mattole Road, N of Cape Mendocino and Capetown, Mt. Range: Bear River Ridge; Drainage Area: Oil Creek to Pacific. 549 Comment
  UC479427  Disporum smithii Marcus E. Jones, A. M. 1931-7-14 29277 Humboldt s of Eureka Comment
  UCR179281  Disporum smithii R. G. Swinney 1968-3-28 234 Humboldt East of Humboldt State College, Arcata 152 Comment
  RSA20815  Disporum smithii Carl B. Wolf 1937-9-10 9313 Humboldt Along old logging road 2 miles E of Trinidad on way to Hammond Lumber Co. s Camp 20 (abandoned). 152 Comment
  RSA520557  Disporum smithii Michael A. Hanson 1990-5-21 71 Humboldt Near Little Creek Trail in Redwood National Park; east side of Highway 101 approximately 7 miles (11 km) south of Klamath Comment
  CAS-BOT-BC208657  Distichlis spicata L. R. Abrams 1922-6-25 8250 Humboldt Humboldt Bay east of Arcata Comment
  UC203975  Dodecatheon hendersonii Joseph P. Tracy 1918-5-28 4947 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  UCSB28097  Dodecatheon hendersonii Phelps, M. 1972-3-18 Humboldt 1.5 mi. from Garberville along Old Briceland Ed., 1,000 yds. north of roadside. 213 Comment
  JEPS14697  Dodecatheon jeffreyi Joseph P. Tracy 1932-7-17 10669 Humboldt ridges e Corral Prairie (Trinity Summit); , e of Corral Prairie 1828 Comment
  UC179933  Downingia cuspidata Joseph P. Tracy 1914-5-14 4468 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  RSA20854  Downingia yina C. B. Wolf 1937-6-18 8894 Humboldt 1/2 mile S of Fortuna. 15 Comment
  UC1199179  Draba verna Joseph P. Tracy 1932-5-1 9841 Humboldt along Van Duzen River (Alton); North Coast Ranges, along Van Duzen River 30 Comment
  UC552294  Draba verna Joseph P. Tracy 1934-3-11 13147 Humboldt gravel bar of Klamath River North Coast Ranges, Klamath River, Weitchpec 91 Comment
  UC1198688  Drymocallis lactea var. austiniae Joseph P. Tracy 1933-7-25 12841 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC157793  Drymocallis lactea var. lactea Doris Kildale Gillespie 1931-6-7 10628 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC58089  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-8-1 11998 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  CAS-BOT-BC428298  Dudleya farinosa W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  CDA30189  Echinochloa crus-galli M. K. Beyers, I. Sheperdson 2009-9-13 239 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  NY242008  Elatine rubella A. Tiehm 1987-8-3 11474 Humboldt Pine Forest Range, Onion Creek Reservoir northwest of Blue Lake and Duffer Peak at the north end of the range. 2151.9 Comment
Read comments
Feb 25 2012
  UC1103648  Eleocharis acicularis Joseph P. Tracy 1935-5-30 13917 Humboldt old Clover Flat Mine Trinity River Valley 152 Comment
  UC666876  Eleocharis acicularis Joseph P. Tracy 1937-8-12 15626 Humboldt Lake Prairie Bald Mountain (edge of bog) 1066 Comment
  RSA53823  Eleocharis obtusa var. engelmannii Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  HSC7339  Eleocharis ovata D. E. Anderson 1963-9-29 2855 Humboldt Fish Lake Comment
  UC666880  Eleocharis pachycarpa H. E. Parks and Joseph P. Tracy 1931-6-7 9569 Humboldt Trinidad 60 Comment
  HSC96491  Eleocharis pachycarpa Gordon Leppig 1998-7-19 979 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  UC666916  Eleocharis suksdorfiana Joseph P. Tracy 1932-7-14 10559 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  HSC39175  Elymus glaucus D. E. Anderson, J. P. Smith 1971-6-28 - 1227 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC9716  Elymus glaucus D. C. Juve 1964-5-16 44 Humboldt Campbell Creek Ranger Station, Camp Tish-Tang, Hwy 96. Comment
  UC1146679  Elymus glaucus Freed W. Hoffman 1946-5-19 1729 Humboldt Mattole River North Coast Ranges Comment
  HSC99111  Elymus lanceolatus subsp. lanceolatus Cara Witte 2007-6-14 273 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  JEPS31518  Epilobium brachycarpum Joseph P. Tracy 1933-8-6 12942 Humboldt French Camp Ridge 1066 Comment
  RSA610462  Epilobium brevistylum R. S. Woglum 1938-8-29 2027 Humboldt Northern Coast Ranges: Trinidad, southwest of Redwood National Park. Comment
  UC562519  Epilobium campestre Joseph P. Tracy 1934-7-9 13349 Humboldt Dobbyn Creek 152 Comment
  HSC55351  Epilobium canum subsp. latifolium Griswold, Butler 1979-7-12 7272 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  RSA46782  Epilobium canum subsp. latifolium Doris Kildale Gillespie 1937-8-12 15255 Humboldt South Fork Mountain. Comment
  SBBG60140  Epilobium canum subsp. latifolium L. Rowntree 1931-7-21 Humboldt Mattole River 2 mi from Petrolia Comment
  HSC53857  Epilobium ciliatum Griswold, Butler 1979-7-10 6328 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  JEPS31530  Epilobium ciliatum subsp. ciliatum Lincoln Constance 1934-5-31 765 Humboldt Bull Cr. flat South Fork Eel River, Bull Creek region, Bull Creek (along n side of creek from w boundary of Park to Grasshopper Pk. (Squaw Cr. rd.)) Comment
  POM271563  Epilobium ciliatum subsp. ciliatum Lyman Benson 1928-7-12 467 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  HSC49655  Epilobium ciliatum subsp. watsonii J. P. Smith 1971-10-6 4953 Humboldt End of Murray Rd. in McKinleyville. Comment
  RSA249499  Epilobium ciliatum subsp. watsonii Robert F. Thorne, P. C. Everett 1965-8-7 35201 Humboldt Samoa Peninsula. Elevation near sea level. Comment
  UC205637  Epilobium hallianum Joseph P. Tracy 1919-9-18 5234 Humboldt Trinity Summit (Northern Coast Ranges) Comment
  UC562506  Epilobium hallianum Joseph P. Tracy 1935-5-25 13852 Humboldt Fort Seward 106 Comment
  HSC72791  Epilobium minutum M. A. Baker 1980-6-16 1933 Humboldt Near Monks Camp. 1097 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
  JEPS31553  Epilobium minutum Lincoln Constance 1934-6-8 838 Humboldt Cow Creek fire trail from Bull Cr. road n over divide into headwaters of Bear Cr.; South Fork Eel River, Bull Creek Region Comment
  SEINET10890728  Epilobium oreganum Chestnut 1888-8-1 CHESTNUT s.n. Humboldt Grouse Creek, growing rankly along brooks Comment
  UC505110  Epilobium oregonense Joseph P. Tracy 1932-7-16 10611 Humboldt meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  JEPS44027  Epilobium septentrionale W. L. Jepson 1924-9-19 10652 Humboldt river bed at Richardson Grove (S. Fork Eel R.); , Richardson Grove Comment
  POM290911  Epipactis gigantea Lyman Benson 1928-7-11 493 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  CAS-BOT-BC57161  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  UC667935  Equisetum hyemale subsp. affine Joseph P. Tracy 1928-6-17 8456 Humboldt at Willow Creek Trinity River Valley Comment
  POM281840  Equisetum hyemale var. affine Lyman Benson 1928-7-9 414 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  RSA275366  Equisetum hyemale var. affine James Payne Smith, Advanced Plant Taxonomy Class 1971-10-9 4996 Humboldt Mad River above the Fish Hatchery. Comment
  HSC37403  Equisetum telmateia subsp. braunii Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 512 Humboldt Along Lost Man Creek. 38 Comment
  HSC93222  Equisetum telmateia subsp. braunii Gordon Leppig 1998-3-9 714 Humboldt Arcata, West End Rd., 0.3 mi. W of Ericson Way 30 Comment
  HSC99644  Equisetum telmateia subsp. braunii L. Watson, J. Meninga Mar 1991 22 Humboldt Near Manilla, Mad River Slough and Dunes, 0.5 mi. N of parking lot, E of trail Comment
  CAS-BOT-BC278518  Eragrostis pilosa var. pilosa Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, Klamath River, Orleans region Comment
  CAS-BOT-BC291161  Erechtites L. R. Abrams 1927-8-31 12052 Humboldt Arcata to Eureka - along highway Comment
  UCR52249  Erechtites argutus H. E. Parks 1937-1 24033 Humboldt North Coast, Spruce Cove, Trinidad 61 Comment
  CAS-BOT-BC291175  Erechtites glomeratus Alice Eastwood 1923-8-14 12319 Humboldt Samoa Comment
  HSC5494  Erechtites minimus H. E. Parks Sep 1931 1058 Humboldt Trinidad 76 Comment
  RSA95039  Erechtites minimus F. W. Peirson 1923-7-10 3926 Humboldt A few miles from Garberville. Comment
  UCD117422  Erica lusitanica T. C. Fuller 1961-3-22 5938 Humboldt N. slope Humboldt Hill, Eureka. Comment
  HSC97978  Erigeron aliceae Cara Witte 2007-7-8 449 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  UC468817  Erigeron foliosus var. confinis Joseph Burtt Davy and Walter C. Blasdale Jun 20 1899-Jan 1 1900 5713 Humboldt Hoopa Valley North-Western California, Mendocino Comment
  CAS-BOT-BC295172  Erigeron inornatus Joseph P. Tracy 1933-8-6 12935 Humboldt French Camp Ridge 1066 Comment
  HSC71370  Erigeron philadelphicus J. P. Smith 1973-5-26 6843 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA47128  Erigeron philadelphicus Doris K. Kildale 1925-6-20 717 Humboldt Big Lagoon Comment
  UCSB30600  Erigeron philadelphicus Edwards, David 1974-7-26 Humboldt Dirt road above E. bank of Mad River, at this junction with Puter Creek, ca. 2 mi. SW. of Korbel 27 Comment
  UC594159  Erigeron philadelphicus var. philadelphicus S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3428 Humboldt nw slopes Buck Mountain 822 Comment
  CAS-BOT-BC300281  Erigeron strigosus var. strigosus Harley P. Chandler 1901-6-1 1402 Humboldt North Coast Ranges. Klamath River 243 Comment
  CAS-BOT-BC224257  Eriodictyon californicum Belle Richardson Jackson 1939-9-1 s.n. Humboldt Between Weaverville & Eureka Comment
  UC562607  Eriodictyon californicum Joseph P. Tracy 1923-6-19 6299 Humboldt e Kings Peak (Wilder Ridge); e of Kings Peak, Wilder Ridge 762 Comment
  HSC32328  Eriogonum compositum var. compositum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5669 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  NY323307  Eriogonum greenei E. L. Greene 1876-7-7 s.n. Humboldt Comment
  HSC16903  Eriogonum latifolium J. Wendell Howe 1932-9-28 928 Humboldt Samoa Comment
  JEPS95110  Eriogonum latifolium Vernon Oswald and Lowell Ahart 1997-9-4 8853 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  LA206930  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  POM188142  Eriogonum latifolium Marcus E. Jones 1931-7-12 28806 Humboldt Alton. Comment
  UC672913  Eriogonum latifolium Joseph P. Tracy 1927-6-18 8175 Humboldt s point of the Cape (near ocean shore); Cape Mendocino 3 Comment
  UCD100336  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River. Comment
  HSC55268  Eriogonum nudum Overton, Butler 1979-8-2 12638 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS85496  Eriogonum nudum var. oblongifolium L. R. Heckard with T. I. Chuang 1968-7-4 1981 Humboldt 9 mi s on Yager road Kneeland Comment
  HSC98098  Eriogonum umbellatum var. goodmanii Cara Witte 2007-6-20 307 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  UC1198155  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1917-9-2 4841 Humboldt Grouse Mountain Northern Coast Ranges, Grouse Mountain 1524 Comment
  UC1198156  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8949 Humboldt near Blake Lookout (along summit of South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC1980559  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8346 Humboldt Along U. S. Forest Service Road 1 northwest of Grouse Mountain at milepost 14.3, about 10.3 air miles southwest of Salyer Comment
  HSC55029  Eriogonum umbellatum var. stellatum Overton, Butler 1979-7-31 11465 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC73935  Eriophyllum lanatum Gail Newton 1980-6-28 680 Humboldt Near Mad River Butte. 1536 Comment
  HSC44132  Eriophyllum lanatum var. achilleoides Thomas W. Nelson, Jane P. Nelson 1977-7-4 3586 Humboldt Along W side of road N of Alder Springs, head of N Fork of Conley Creek 1280 Comment
  HSC57358  Eriophyllum lanatum var. achilleoides Overton, Butler 1979-7-26 10054 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UC90307  Eriophyllum lanatum var. achilleoides W. W. Price 1890-7-1 Humboldt Mad River Comment
  UC1223130  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1950-6-15 18790 Humboldt 7 mi n Harris; Jenk's Ranch Comment
  CAS-BOT-BC301689  Eriophyllum lanatum var. lanceolatum Lincoln Constance; Reed C. Rollins 1942-5-12 2890 Humboldt Klamath-Siskiyou Region. Klamath River 12 miles north of Weitchpec 121 Comment
  SEINET11850778  Eriophyllum lanatum var. lanceolatum H. P. Chandler 1901-1 1403 Humboldt Klamath River, North Coast Ranges 244 Comment
  CAS-BOT-BC301924  Eriophyllum staechadifolium L. R. Abrams 1916-7-18 6080 Humboldt Arcata to Trinidad Comment
  HSC26295  Erodium moschatum T. O. Osborne 1970-9-16 40 Humboldt Blank Rock, 1/4 mi. W Trinidad Head Comment
  UC1222654  Erysimum capitatum Joseph P. Tracy 1950-6-15 18791 Humboldt 7 mi n Harris (along old Overland Rd); Mail Ridge Comment
  HSC53822  Erysimum capitatum var. capitatum Terry Griswold, Marvin Butler 1979-7-10 6266 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  RSA0008580  Erysimum menziesii R. I. Bonn 1965-3-19 10 -a Humboldt 4 miles west of Arcata, on Lanphere Road Comment
  HSC57645  Erysimum perenne G. L. Clifton, Terry Griswold 1979-7-25 10812 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  SEINET14045671 Image available Erythranthe nasuta Joseph P. Tracy 1914-1 4457 Humboldt Plants of Northern Coast Ranges of California; Fort Seward. 122 Comment
  JEPS61844  Erythronium californicum Joseph P. Tracy May 1918 Humboldt Eureka Comment
  UC13769  Erythronium grandiflorum W. C. Blasdale 1896-6-9 Humboldt top S. Fork Mountain Comment
  JEPS79888  Erythronium oregonum Joseph P. Tracy 1918-5-1 4897 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA256579  Erythronium oregonum J. D. Ackerman 1975-5-3 437 Humboldt Ca. 3.5 miles east of Chezem Road and Highway 299 intersection west of Redwood Creek Comment
  HSC95188  Erythronium revolutum Gordon Leppig, Tony LaBanca 2003-5-23 1947 Humboldt PalCo land, Kneeland, THP 1-01-359HUM 720 Comment
  OBI11797  Eschscholzia californica Carl B. Wolf 1937-6-14 8824 Humboldt North Coast Range, Kneeland prairie 823 Comment
  CAS-BOT-BC403039  Eschscholzia californica Henry M. Pollard 1945-8-28 s.n. Humboldt Orleans, Klamath River Canyon Comment
  SEINET12102668  Eschscholzia californica J. P. Tracy 1950-1 18750 Humboldt Cape Mendocino. Sandy places at "Devil's Gate." S of point of the Cape 30 Comment
  HSC44570  Eucephalus ledophyllus var. ledophyllus Brad Klipfel 1973-7-15 189 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1223115  Euchiton gymnocephalus Joseph P. Tracy 1946-5-30 17548 Humboldt near old Strong's District School House (burned down); Riverside Park Comment
  HSC103827  Euchiton gymnocephalus Spadoni 1999-7-1 Humboldt Eureka, residential garden weed Comment
  UC1223113  Euchiton sphaericus Joseph P. Tracy 1942-7-26 17299 Humboldt 1 mi n Redwood House (on the Redwood House Road at old mill site); Valley of South Yager Creek 457 Comment
  RSA44413  Euchiton sphaericus H. M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek, near Orleans Comment
  HSC76242  Euonymus occidentalis Denis Kearns 1981-7-23 398 Humboldt Near Whiteys Peak. 1524 Comment
  HSC98864  Euphorbia crenulata Cara Witte 2008-8-5 992 Humboldt Forest Service Road 4N06. 1/4 mile east of intersection with National Forest 1. 1233 Comment
  RSA498945  Euphorbia crenulata M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville. Comment
  HSC8018  Euphorbia peplus W. Schocker 1937-3-18 Humboldt Mad River Comment
  CAS-BOT-BC413866  Fallopia convolvulus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1607839  Festuca Joseph P. Tracy and Harold E. Parks 1934-6-27 11078 Humboldt Grouse Mountain 1432 Comment
  CDA18038  Festuca californica R. Spadoni, Ottoson 1999-7-13 PDR 1170299 Humboldt Hills above Showers Pass towards Kneeland from Hwy 36, Soldiers Grove. At Eaton Rough Mtn. area, near Bridgeville. 0 Comment
  HSC76570  Festuca californica Dennis Kearns 1981-6-24 11 Humboldt Near Cedar Camp 1219 Comment
  HSC76542  Festuca idahoensis Denis Kearns 1981-7-6 82 Humboldt Near Mosquito Lake 1256 Comment
  CAS-BOT-BC278815  Festuca occidentalis C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC74474  Festuca occidentalis Gail Newton 1980-7-23 1752 Humboldt Near Packsaddle Ridge 1463 Comment
  UC1145211  Festuca occidentalis Joseph P. Tracy 1936-7-28 15019 Humboldt Lake Prairie Bald Mountain 1066 Comment
  UC53591  Festuca occidentalis H. P. Chandler 1901-1 1775 a Humboldt Humboldt Bay Comment
  HSC102644  Festuca perennis J. P. Smith 2009-5-31 12606 Humboldt Bald Hills Road. Comment
  CAS-BOT-BC278962  Festuca rubra David D. Keck 1944-7-11 5490 Humboldt 3 mi. N.E. of Capetown 152 Comment
  RSA126626  Festuca rubra H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 0 Comment
  RSA126628  Festuca rubra H. S. Yates 1936-6-17 5701 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  SACT001197  Festuca rubra Malcolm Nobs, S. Smith 1949-8-3 Humboldt Salt marshes. Comment
  UC526867  Festuca rubra Joseph P. Tracy 1927-6-8 8112 Humboldt Trinidad Northern Coast Region 60 Comment
  UCD66353  Festuca rubra H. S. Yates 1936-6-17 5694 Humboldt Lower N. W. slope of Buck Mt. 792 Comment
  HSC70481  Festuca subulata Gail Newton 1980-7-20 1632 Humboldt Near Bell Swamps 1426 Comment
  UCD66490  Festuca subuliflora R. Tofsrud 1949-7-1 Humboldt On road from Scotia to Capetown. Comment
  HSC103976  Fragaria chiloensis C. Reynolds 2015-4-12 35 Humboldt Along Freshwater Beach, near the Kuchel Visitor Center 1 Comment
  POM231291  Fragaria chiloensis D. D. Keck, Jens Clausen 1935-6-16 3390 Humboldt Mouth of Little River. Comment
  CAS-BOT-BC453516  Fragaria chiloensis W. R. Dudley 1899-6-1 s.n. Humboldt Pennisula of Eureka Comment
  HSC97577  Fragaria vesca Cara Witte 2007-5-29 130 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  BLMAR113  Frangula californica subsp. californica Jennifer Anthony-Wheeler 1995-1-19 113 Humboldt King range, growing in open clrng arng rd to new king range admin 283 Comment
  SEINET516308  Frangula purshiana Vernon H. Oswald 1998-4-16 8914 Humboldt Elk Head, N end of Trinidad State Beach. 30 Comment
  UCD112825  Frangula purshiana Roman Gankin 1965-8-6 549 Humboldt on Matolle Road, 7.4 miles northeast of Capetown. Comment
  UCD112832  Frangula purshiana T. I. Storer 1931-7-1 2219 Humboldt northwest coast of county. Comment
  HSC15539  Fritillaria affinis D. E. Anderson 1962-5-1 2189 Humboldt Junction of Redwood Creek Rd. and rd. to Hoopa Comment
  RSA304286  Fritillaria affinis James R. Shevock 1972-3-27 1479 Humboldt Bear River Valley near Cape Mendocino 152 Comment
  UC1225860  Fritillaria affinis Joseph P. Tracy 1947-4-27 17674 Humboldt Table Bluff, on Tompkins Hill Road Table Bluff; , Tompkins Hill Road 152 Comment
  SEINET200745  Fritillaria lanceolata Joseph P. Tracy 1940-5-17 16549 Humboldt McClellan Mountain. 762 Comment
  HSC38787  Fritillaria purdyi J. P. Smith 1976-5-30 8826 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  CHSC114069  Fumaria capreolata Robert R. Halse 2013-3-28 8767 Humboldt Weedy area by a Texaco station near 3543 Broadway St. (US Hwy Ave. Comment
  HSC8377  Fumaria officinalis Wm. F. Bowman 1968-11-20 Humboldt 4 mi. SE of Arcata, along Jacoby Creek. Comment
  HSC22537  Galium aparine D. E. Anderson, J. P. Smith 1970-5-10 5059 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  RSA168953  Galium aparine Joseph P. Tracy 1950-6-25 18891 Humboldt Burr Valley. On NW slope of Buck Mtn. 1067 Comment
  HSC82402  Galium bifolium Thomas W. Nelson 1979-7-11 5036 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  JEPS6703  Galium bolanderi Joseph P. Tracy 1937-7-24 15530 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  HSC97949  Galium bolanderi Cara Witte 2007-6-26 352 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1388 Comment
  UC416637  Galium boreale subsp. septentrionale Harley P. Chandler 1901-6-14 1484 Humboldt between Orleans Bar and Somes Bar; North Coast Ranges, Klamath River 304 Comment
  HSC41336  Galium muricatum Brad Klipfel 1974-9-7 564 Humboldt Horse Mtn. Comment
  UC1196118  Galium muricatum Joseph P. Tracy 1940-8-25 16709 Humboldt near High Prairie; Bald Mountain 1066 Comment
  HSC53836  Galium triflorum Griswold, Butler 1979-7-10 6286 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC1586851  Galium triflorum Juha Pykala 1987-6-20 1857 Humboldt n house of Prof. D. H. Norris; Kneeland, Greenwood Heights 350 Comment
  HSC41594  Galium triflorum Thomas W. Nelson, Jane P. Nelson 1977-7-1 3554 Humboldt 1494 Comment
  UCD132373  Gamochaeta ustulata Linda M. Barker 1976-7-5 1539 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC56997  Garrya buxifolia Overton, Butler 1979-7-24 9574 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC73064  Garrya buxifolia M. A. Baker 1980-6-16 1949 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC188548  Garrya elliptica H. E. McMinn 1922-8-5 353 Humboldt Van Dusen River Comment
  HSC8387  Garrya elliptica H. E. Parks 1933-2 4287 Humboldt Trinidad, cliffs near ocean Comment
  HSC8391  Garrya elliptica D. E. Anderson 1962-1-4 1908 Humboldt Lanphere's Comment
  HSC89538  Garrya elliptica M. Roantree 1985-4-25 1 Humboldt E side of Trinidad Head. Comment
  UC21582  Garrya elliptica W. C. Blasdale 1896-6-3 Humboldt Eureka; w Eureka Comment
  CAS-BOT-BC182168  Garrya fremontii Joseph P. Tracy 1932-3-6 9773 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC43109  Garrya fremontii Brad Klipfel 1975-5-30 650 Humboldt Horse Mtn. Comment
  UCD121163  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC182147  Garrya fremontii L. B. Kildale 1930-8-3 10336 Humboldt Chaparall Mt. near Bug Creek 914 Comment
  UC589848  Gastridium ventricosum H. S. Yates 1936-6-23 5877 Humboldt 4 mi nne Cathay Peak; Dyerville Quadrangle Comment
  HSC59858  Gaultheria ovatifolia M. A. Baker 1979-7-6 1011 Humboldt .6 k W of FS rd. 15N01 on rd. 12N16, toward Bald Mtn. Comment
  UC1046521  Gaultheria ovatifolia Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3413 Humboldt meadow at Snow Camp, ridge between Mad River and Redwood Creek, Bald Mountain Snow Camp; Bald Mountain, Snow Camp 1432 Comment
  CAS-BOT-BC58905  Gaultheria shallon Carl B. Wolf 1930-10-30 1043 Humboldt Old Coast Road, 4 miles south of Thorn 304 Comment
  HSC47492  Gaultheria shallon Sheila Logan 1978-4-9 16 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC59210  Gaultheria shallon Terry Roth 1979-5-29 103 Humboldt Arcata, entrance to the Canyon Dorms of Humboldt State University Comment
  HSC73457  Gaultheria shallon Grunert 38 Humboldt Jolly Giant Creek, Arcata city limit, on Jolly Giant Rd. near HSU Comment
  HSC7813  Gaultheria shallon D. B. Bader 1963-4-1 48 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101, E bank of the lagoon Comment
  HSC7818  Gaultheria shallon C. B. Wolf 1927-8-22 804 Humboldt 1 mi. S of Orick, on hills near ocean Comment
  RSA134599  Gaultheria shallon P. C. Everett, E. K. Balls, George B. Everett 1959-10-25 23964 Humboldt 10 mi. NE from Blue Lake, U.S. Hwy. 299, Arcata to Willow Creek. 457 Comment
  UCSB7320  Gaultheria shallon Phillips, Priscilla 1958-6-9 Humboldt Bishop Pine Lodge, 2 mi. N of Trinidad Comment
  HSC102929  Gayophytum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 901 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  POM223144  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1932-7-11 10400 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  UC162343  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1911-7-10 3491 Humboldt Willow Creek Northern Coast Ranges, valley of Trinity River (river bar at mouth) 152 Comment
  UC198620  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1917-9-2 4850 Humboldt Grouse Mt. Northern Coast Ranges (slopes high up) 1524 Comment
  POM214929  Gayophytum humile Joseph P. Tracy 1932-7-11 10424 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  HSC14654  Genista monspessulana William J. Ferlatte 1963-4-21 18 Humboldt Near 11th and A St., Arcata Comment
Read comments
Dec 18 2011
  UC1173685  Gentiana calycosa Joseph P. Tracy 1939-8-16 16412 Humboldt Horse Mountain Northern Coast Ranges (serpentine formation) 1402 Comment
  UC153981  Gentiana sceptrum J. P. Tracy 1906-7-1 2516 Humboldt immediately vicinity Eureka 0 Comment
  UC1198644  Gentiana sceptrum Joseph P. Tracy 1926-10-24 7817 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC213322  Gentianopsis simplex Joseph P. Tracy 1919-9-22 5275 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC89987  Geranium molle Leonel Arguello 1989-6-24 24 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata, Hunt parcel Comment
  CAS-BOT-BC226144  Gilia capitata subsp. pacifica Mrs. G. Earle Kelly 1924-6-1 s.n. Humboldt Castle Island near Crescent City Comment
  CAS-BOT-BC226146  Gilia capitata subsp. pacifica J. P. Tracy; H. E. Parks 1930-5-25 0793 Humboldt Near Bridgeville Comment
  RSA469341  Gilia capitata subsp. pacifica J. P. Smith 1973-5-26 6816 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC100592  Gilia grandiflora Carl C. Marshall Jun 1886 314 Humboldt Vicinity of Hoopa. Comment
  CAS-BOT-BC225470  Gilia millefoliata Mrs. H. C. Cantelow 1935-5-31 825 Humboldt Unspecified Comment
  UC23861  Gilia tricolor subsp. tricolor C. C. Marshall 1888-1 Humboldt Comment
  UC1191701  Glaux maritima Malcolm A. Nobs, S. Galen Smith 1949-8-3 1201 Humboldt 2 mi n of Eureka (bordering Humboldt Bay); Humboldt Bay Comment
  CAS-BOT-BC218430  Glehnia littoralis subsp. leiocarpa W. R. Dudley 1899-6-1 s.n. Humboldt Penninsula of Humboldt Bay Comment
  POM318534  Glehnia littoralis subsp. leiocarpa Patricia Wilder 1968-8-22 4418 Humboldt County campground on beach west of Ferndale off Centerville Road. 8 Comment
  CAS-BOT-BC280551  Glyceria elata Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek near Orleans Comment
  HSC74756  Glyceria elata Gail Newton 1981-8-6 2402 Humboldt Near Humbug Creek 1256 Comment
  UC526908  Glyceria elata Joseph P. Tracy 1926-6-6 7558 Humboldt w of Hoopa (near summit on road to Bair's, Hoopa Mountain); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  CAS-BOT-BC282840  Glyceria striata H. P. Chandler 1901-6-1 1526 Humboldt Klamath River 426 Comment
  SEINET10938128  Gnaphalium Mary Susan Taylor 1990-8-22 Taylor 6077 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC57969  Gnaphalium palustre G. L. Clifton, Griswold 1979-7-31 11692 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC582517  Gnaphalium palustre Joseph P. Tracy 1932-7-13 10513 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  SEINET8726302 Image available Godetia quadrivulnera C. C. Harris, S. K. Harris, J. P. Tracy 1942-1 s.n. Humboldt 7 miles north and 5 miles east of Willow Creek 165 Comment
  HSC29720  Goodyera oblongifolia J. D. Ackerman 1973-12-17 121 Humboldt 2 mi. N of Manila Comment
  HSC79173  Grindelia hirsutula C. K. Geldin-Meyers 1985-8-5 102 Humboldt W of Honeydew along Mattole Rd. 610 Comment
  JEPS35820  Grindelia hirsutula Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8967 Humboldt 9.5 mi by road nw Petrolia (s of Cape Mendocino, in coastal scrub just back of beach) Comment
  JEPS81942  Grindelia hirsutula Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8967 Humboldt 9.5 mi by road nw Petrolia (s of Cape Mendocino, in coastal scrub just back of beach) 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
  UC665533  Grindelia hirsutula H. E. Parks Aug 1941 24190 Humboldt Big Lagoon Comment
  POM230322  Grindelia stricta var. stricta J. T. Howell 1937-7-31 s.n. Humboldt Salt marsh bordering Humboldt Bay at Arcata. Comment
  HSC56456  Hackelia bella Griswold, Butler 1979-7-12 7233 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  JEPS67940  Hackelia bella H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout; South Fork Mountain Comment
  RSA249328  Hackelia bella D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-13 5571 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  JEPS55579  Hackelia californica Joseph P. Tracy 1932-7-12 10428 Humboldt at Corral Prairie Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC1239634  Hackelia californica Joseph P. Tracy 1937-7-29 15574 Humboldt in forest near McKay Camp; South Fork Mountain 1676 Comment
  UC1713302  Hackelia setosa Joseph P. Tracy 1937-7-25 15547 Humboldt Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  HSC102116  Hastingsia alba M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1020 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC306616  Helenium bigelovii Doris K. Kildale 1925-7-26 1057 Humboldt Christmas Prairie - Bald Mt. Comment
  HSC5765  Helenium bigelovii D. E. Anderson 1961-9-9 1796 Humboldt Big Lagoon County Park Comment
  RSA18612  Helenium bigelovii C. B. Wolf 1937-8-13 9248 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  CAS-BOT-BC306866  Helenium bolanderi Doris K. Kildale 1929-7-10 8398 Humboldt Big Lagoon Comment
  HSC96470  Helenium bolanderi Gordon Leppig 1997-6-19 454 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS35027  Helenium bolanderi Joseph P. Tracy 1937-7-16 15431 Humboldt Trinidad 60 Comment
  SD42503  Helenium bolanderi Carl B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park. Comment
  UC668203  Helenium bolanderi Joseph P. Tracy 1938-7-6 16017 Humboldt Big Lagoon 3 Comment
  UC169301  Helenium puberulum Joseph P. Tracy 1912-8-4 3979 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC166088  Helenium puberulum Joseph P. Tracy 1911-8-27 3534 Humboldt Ryan's Slough Northern Coast Region, Region about Humboldt Bay 0 Comment
  HSC25071  Heliotropium curassavicum var. oculatum R. W. Becking 1970-10-3 Humboldt Stone Lagoon near Orick Comment
  CHSC26961  Helminthotheca echioides M. S. Taylor 1977-8-5 1431 Humboldt Around bridge over Eel River, at the turn off from Hwy 101 to Ferndale, in Fernbridge. Comment
  UC1223170  Helminthotheca echioides Joseph P. Tracy 1950-9-10 19361 Humboldt 1 mi inland from Cape Mendocino (1/2 mi s of town, brushy hillside along the coast road); foothills of the Cape Mendocino Ridge 60 Comment
  HSC34540  Hemitomes congestum Hap Ponedel 1975-9-20 Humboldt N side of Murray Rd, 1-2 mi. from Central Ave., McKinleyville, CA. Bulk Collection 83 Comment
  CAS-BOT-BC306036  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1930-9-1 9174 Humboldt Northern Coast Ranges. Miranda; along South Fork of Eel River 121 Comment
  CAS-BOT-BC309986  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-7-12 7200 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 304 Comment
  UC175967  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1908-6-8 2629 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC204741  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1918-7-1 Humboldt 3 mi s point of Cape (sw slopes fronting the ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  UC275452  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-7-18 7215 Humboldt Cape Ridge Northern Coast Ranges, Cape Mendocino 304 Comment
  POM193009  Hemizonia tracyi H. E. Parks 1930-5-25 0880 Humboldt Near Bridgeville. Comment
  BLMAR674  Heracleum maximum Jennifer Wheeler 2013-6-7 674 Humboldt King range, Mattole Beach parking lot 6 Comment
  HSC56088  Heracleum maximum G. L. Clifton, Terry Griswold 1979-7-31 11777 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC74295  Heracleum maximum M. A. Baker 1980-7-22 3124 Humboldt Near Grogan Hole. 1676 Comment
  RSA246796  Heracleum maximum R. F. Thorne, P. Everett 1965-8-9 35327 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC39822  Hesperevax sparsiflora var. brevifolia R. Becking 1976-5-2 Humboldt Along Samoa peninsula at the Samoa airstrip at Fairhaven Comment
  HSC74733  Heterocodon rariflorum Gail Newton 1981-7-24 2318 Humboldt Near Chaparral Mtn. 1433 Comment
  UC581757  Heterotheca oregona var. rudis Joseph P. Tracy 1933-10-15 13097 1/2 Humboldt Miranda, along South Fork of Eel River South Fork of Eel River 121 Comment
  UC1222391  Heuchera merriamii Joseph P. Tracy July 1935 14172 Humboldt summit near Rangers Lookout at head of Croghan Hole; Trinity Summit 1828 Comment
  HSC71159  Heuchera micrantha Thomas W. Nelson 1977-6-15 3423 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  UC1222389  Heuchera micrantha Joseph P. Tracy 1950-6-8 18718 Humboldt 2 mi s Ferndale (near the Sand Cut, Wild Cat Road) 304 Comment
  RSA0063136  Heuchera micrantha var. hartwegii Marcus E. Jones 1924-4-28 s.n. Humboldt Dyerville. Comment
  HSC57155  Hieracium albiflorum Overton, Butler 1979-7-26 9954 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC57892  Hieracium albiflorum Overton, Butler 1979-7-31 11464 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC67473  Hieracium albiflorum J. P. Smith, Steve Selva 1970-6-14 3834 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  SEINET11262552  Hieracium albiflorum D. E. Anderson 1972-6-20 5745 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit.; 0 Comment
  UC582423  Hieracium nudicaule Joseph P. Tracy 1933-8-6 12952 Humboldt French Camp Ridge 1066 Comment
  RSA156091  Hierochloe occidentalis W. A. Silveus 1938-7-9 2960 Humboldt Dyerville. Comment
  RSA10085  Hierochloe occidentalis Joseph P. Tracy 1926-4-11 7401 Humboldt Bridgeville 229 Comment
  HSC26474  Hippuris vulgaris John R. Keith 1973-5-9 Humboldt 300 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  HSC59059  Hippuris vulgaris Thomas Wood 1979-5-17 186 Humboldt Clam Beach pond, E of Clam Beach-Little River Beach, along Hwy. 101 3 Comment
  UC492250  Hirschfeldia incana Joseph P. Tracy 1930-10-12 9215 Humboldt Alton to Fortuna Eel River 15 Comment
  HSC10133  Holcus lanatus Francis Winter 1960-4-19 Humboldt Samoa peninsula 5 miles W of Arcata. Comment
  HSC38837  Holcus lanatus R. Sutherland 1976-8-13 3 .13876 Humboldt Just above Whittemore Grove. 168 Comment
  RSA22954  Holcus lanatus A. C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  UC922019  Holcus lanatus Joseph P. Tracy 1949-7-6 18330 Humboldt Eureka 30 Comment
  UCR122375  Holcus lanatus George K. Helmkamp, E. A. Helmkamp 2001-7-8 7009 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC18669  Holodiscus discolor H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC57434  Holodiscus discolor G. L. Clifton, Griswold 1979-7-26 10223 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  HSC58168  Holodiscus discolor G. L. Clifton, Griswold 1979-8-2 12239 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC70991  Holodiscus discolor Gail Newton 1980-7-15 1576 Humboldt Near Sims Mtn. 1311 Comment
  HSC72686  Holodiscus discolor J. P. Smith 1977-7-3 9260 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  OBI33238  Holodiscus discolor David J. Keil 1983-7-1 17262 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  UCD85896  Hordeum marinum subsp. gussoneanum A. H. Murphy 1951-6-1 49 Humboldt O. O. Davis Ranch. South slope of South Fork Mtn., 3 miles E of Low Gap. Comment
  HSC10223  Hordeum murinum subsp. glaucum E. W. Styskel 1964-4-12 67 Humboldt Corner of Center St. and Hwy. 101 in Rio Dell. Comment
  HSC10203  Hordeum murinum subsp. leporinum L. M. Malloy 1965-4-23 45 Humboldt Samoa 1/4 mi. NW of the corner of Thunder Rd. and The Hard Way. Comment
  UC526706  Hordeum murinum subsp. leporinum Joseph P. Tracy 1925-5-17 6978 Humboldt Willow Creek Northern Coast Ranges, , Willow Creek (Trinity River Valley) 152 Comment
  UCSB2822  Horkelia tridentata Constance, Lincoln; Beetle, Alan; Tracy, Joseph 1940-5-17 Humboldt Larrabee Valley, near Eureka 762 Comment
  HSC35282  Horkelia tridentata var. flavescens J. D. Ackerman 1975-6-18 472 Humboldt Big Hill Rd., 10.4 mi. E of Hoopa and Hwy. 96 Comment
  HSC97225  Horkelia tridentata var. flavescens K. Auker, R. Battleson 2007-6-11 6 Humboldt 11.9 mi. S of Hwy. 299 on USFS Rd. NF1 1585 Comment
  UC33562 Image available Hosackia denticulata Chesnut and Drew 1888-7-11 Humboldt Jernigan's; ; Jarnigan's, Humboldt Co. Comment
  HSC102115  Hydrophyllum fendleri var. albifrons M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1019 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC57677  Hydrophyllum occidentale G. L. Clifton, Griswold 1979-7-25 10877 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC100496  Hydrophyllum occidentale Carl C. Marshall Jun 1885 7 Humboldt Lower Mad River. Comment
  JEPS1639  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-25 15538 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  JEPS25031  Hydrophyllum tenuipes Lincoln Constance, Alan A. Beetle 1940-5-16 2611 Humboldt 5 mi e Carlotta; Valley of Van Duzen River 30 Comment
  SD51268  Hypericum perforatum Darley F. Howe 1961-8-2 3118 Humboldt 7.7 miles east of Orick on Bald Mountain road. 609 Comment
  UC1137468  Hypericum perforatum Hubert Person 1941-5-24 25323 Humboldt just n. Garberville; Briceland Quad., CA Forest & Range Expt. Station 152 Comment
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Sep 12 2009
  UC420732  Hypericum perforatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5715 Humboldt Hoopa Valley North Coast Ranges, Hoopa Valley Comment
  UC420746  Hypericum perforatum Harley P. Chandler June, 1901 1493 Humboldt Klamath R. North Coast Ranges, Klamath R. 426 Comment
  UC909470  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt ca. 1/2 mi. n. Orleans (near Klamath R.) Comment
  HSC13845  Hypericum perforatum J. R. Lippincott 1967-7-16 6 Humboldt Near N Fork Mad River bridge 152 Comment
  RSA424593A  Hypericum perforatum T. S. Elias, Barbara A. Elias 1987-8-26 10630 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge. Comment
  UC1199473  Hypochaeris glabra Joseph P. Tracy 1936-5-30 14835 Humboldt near Samoa; Humboldt Bay 6 Comment
  HSC100166  Ilex aquifolium J. P. Smith 2010-2-27 12708 Humboldt Azalea State Reserve SE of McKinleyville. 50 Comment
  HSC35707  Iliamna latibracteata Thomas W. Nelson, B. Reinhardt 1975-7-30 2091 Humboldt Grouse Creek side of Last Chance Ridge. Comment
  UC902184 Image available Iliamna latibracteata Joseph P. Tracy 1948-8-15 18151 Humboldt near Elk Camp, on Ridge 2 miles east of Grove's Prairie; Trinity Summit. 1493 Comment
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Feb 27 2012
  CHSC2200  Iris douglasiana E. Crouch 1929-5-8 Humboldt 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
  UC667116  Iris macrosiphon Joseph P. Tracy 1938-3-27 15700 Humboldt Miranda South Fork of Eel River (along South Fork of Eel River) 121 Comment
  UC719144  Iris macrosiphon F. G. Meyer 1938-4-6 1390 Humboldt about 10 mi n Garberville Comment
  HSC49177  Iris tenuissima J. O. Sawyer 1977-4-23 2847 Humboldt Bluff Creek Campground Comment
  HSC79260  Iris tenuissima T. Jimerson, J. Pageau 1979-5-1 439 Humboldt 0.2 mi. S of Hwy. 96 on Ishi Pishi Rd., Orleans Comment
  CAS-BOT-BC88654  Isatis tinctoria J. H. Thomas 1949-6-12 900 Humboldt Near Klamath River, about 0.5 mile north of town of Orleans. Comment
  HSC75280  Isoetes bolanderi J. O. Sawyer, D. A. Thornburgh 1980-9-9 4075 Humboldt Mill Creek Lake and surrounding meadows Comment
  UC1223545  Isoetes howellii Joseph P. Tracy with Mr. Murphy 1951-6-26 19582 Humboldt upper of Twin Lakes Comment
  JEPS60150  Isoetes nuttallii Joseph P. Tracy 1938-7-7 16034 Humboldt at Cold Springs Grouse Mt; Grouse Mt., Cold Springs 1432 Comment
  SEINET4170781 Image available Isolepis cernua H. E. Parks, S. T. Parks 24244 Humboldt Spruce Cove , Trinidad 61 Comment
  SEINET9157642  Isolepis cernua H. E. Parks, S. T. Parks 24244 Humboldt Spruce Cove , Trinidad 61 Comment
  HSC5881  Jaumea carnosa David K. Smith 1968-11-9 55 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  UC185007  Juncus balticus subsp. ater Joseph P. Tracy 1912-7-21 3787 Humboldt Alton Northern Coast Region 30 Comment
  HSC103408  Juncus bolanderi Ivy Watson 2008-10-5 34 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  HSC39770  Juncus bufonius Peter Sorensen 1976-6-11 Humboldt King Salmon Comment
  UC14897  Juncus bufonius J. P. Tracy 1900-5-27 805 Humboldt immediate vicinity Eureka 0 Comment
  UC1152114  Juncus bufonius var. occidentalis Joseph P. Tracy 1934-6-27 11088 Humboldt 2 mi se Grouse Mountain top; Grouse Mountain 1524 Comment
  UC184085  Juncus effusus subsp. pacificus Joseph P. Tracy 1906-8-18 2548 Humboldt Eureka Northern Coast Region 0 Comment
  RSA15569  Juncus effusus subsp. pacificus Carl B. Wolf 1927-8-28 1190 Humboldt Eureka Bay, on the road to Arcata. Comment
  HSC75276  Juncus ensifolius J. O. Sawyer, D. A. Thornburgh 1980-9-9 4079 Humboldt Mill Creek Lake and surrounding meadows Comment
  UCD141540  Juncus ensifolius Joseph P. Tracy 1937-8-7 15619 Humboldt Bald Mountain; east of Korbel. About a mile north of Murphy meadow. Comment
  HSC70986  Juncus exiguus Gail Newton 1980-7-20 1652 Humboldt Near Bell Swamps 1426 Comment
  RSA246769  Juncus falcatus subsp. sitchensis Robert F. Thorne, Percy C. Everett 1965-8-7 35175 Humboldt Big Lagoon. 2 Comment
  RSA168868  Juncus falcatus var. falcatus Joseph P. Tracy 1938-7-6 16019 Humboldt Big Lagoon Comment
  UC421740  Juncus hesperius Henry Melde 1902-2-8 Humboldt Eureka Comment
  RSA42045  Juncus hesperius Ella Dales Cantelow 1936-8-28 1634 Humboldt 4 1/2 miles SW of Dinsmore s Comment
  CDA39191  Juncus lescurii Gordon Leppig 1999-10-3 1259 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  HSC75484  Juncus mertensianus J. O. Sawyer 1980-7-18 3607 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC421840  Juncus mertensianus Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5787 Humboldt Trinity Summit North Coast Ranges Comment
  UC183659  Juncus occidentalis Joseph P. Tracy 1911-7-7 3398 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  CAS-BOT-BC235883  Keckiella corymbosa Joseph P. Tracy 1937-7-11 15422 Humboldt Vicinity of Garberville 121 Comment
  RSA424320  Keckiella corymbosa Unspecified 1920-7-15 s.n. Humboldt Arcata vicinity. Comment
  RSA43878  Keckiella corymbosa H. M. Pollard 1948-8-12 s.n. Humboldt Perch Creek near Orleans. Comment
  UC566682  Keckiella corymbosa H. L. Mason 1928-7-14 4900 Humboldt near Garberville; East Fork of the Eel River Comment
  NY790273  Keckiella corymbosa W. C. McCalla 1935-7-29 4253 Humboldt Open valley of Eel River Comment
  HSC56117  Kelloggia galioides Gilbert Muth 1979-8-1 11893 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  RSA43678  Kelloggia galioides H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  CAS-BOT-BC273598  Koeleria pyramidata Harley P. Chandler 1901-6-1 1342 Humboldt North Coast Ranges. Hupa Indian Reservation 304 Comment
  UC1051592  Lactuca saligna Joseph P. Tracy 1947-9-14 17932 Humboldt Kneeland Prairie 762 Comment
  UC1239533  Lactuca serriola Joseph P. Tracy 1946-8-25 17650 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  UC1239535  Lactuca serriola Joseph P. Tracy 1934-8-14 13577 Humboldt Holmes Flat North Coast Ranges, Holmes Flat 60 Comment
  UCSB30626  Lapsana communis Edwards, David 1974-7-13 Humboldt NE facing bank of ditch at the NE end of a field located to the SW of the intersection of Fickle Hill Rd. and Hill St., ca. 1/3 mi. E. of U.S. 101, Arcata 36 Comment
  UC128624  Lasthenia californica subsp. californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5380 Humboldt Harris Comment
  UC1222973  Lasthenia californica subsp. californica Joseph P. Tracy 1942-5-16 17357 Humboldt near Garberville (on road to Harris, 1 mi ne of town) 304 Comment
  UC1222406  Lathyrus angulatus Joseph P. Tracy 1942-6-15 17133 Humboldt near Redcrest Resort (Englewood); Englewood 91 Comment
  NY8451  Lathyrus biflorus T. W. Nelson 1980-6-10 5432 Humboldt Blocksburg Quadrangle. Serpentine on NE slope of Red Mountain 1371.6 Comment
  HSC33764  Lathyrus littoralis Paul Dryden 1975-5-24 206 Humboldt Samoa Dunes, across from the boat landing. Comment
  POM72742  Lathyrus littoralis P. A. Munz 1925-6-21 9892 Humboldt Clam Beach, 14 miles N of Eureka. Comment
  UCR122373  Lathyrus littoralis George K. Helmkamp, E. A. Helmkamp 2001-7-8 7014 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC62924  Lathyrus littoralis J. M. DiTomaso 1979-4-22 913 Humboldt Big Lagoon, 8 mi. N of Trinidad Comment
  UC198655  Lathyrus littoralis Joseph P. Tracy 1917-5-30 4802 Humboldt Little River Beach Northern Coast Region 6 Comment
  HSC38081  Lathyrus polyphyllus Thomas W. Nelson, James Nelson 1976-5-30 2626 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1199075  Lathyrus polyphyllus Joseph P. Tracy 1935-7-22 14126 Humboldt Klamath Mountains, Trinity Summit, near Corral Prairie. Comment
  UC1222412  Lathyrus polyphyllus Joseph P. Tracy 1950-7-2 18975 Humboldt near Grizzly Camp (on Little Hors Linto Creek); Trinity Summit, Little Hors Linto Creek Comment
  UC15347  Lathyrus polyphyllus H. N. Bolander 1866-1 6508 Humboldt Little Bear Harbor Comment
  HSC23457  Lathyrus tracyi D. E. Anderson 1965-5-1 3561 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC162589  Lathyrus vestitus Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5358 Humboldt Bell Springs to Harris; North Coast Ranges Comment
  JEPS46259  Lathyrus vestitus var. ochropetalus W. L. Jepson 1934-5-7 16687 Humboldt Dyerville Comment
  HSC39786  Layia carnosa Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  RSA0008479  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt Ocean Beach at mouth of Little River Comment
  UC1223219  Layia gaillardioides Joseph P. Tracy 1950-6-8 187860 Humboldt Petrolia Comment
  UC1101252  Lemna valdiviana Malcolm A. Nobs, S. Galen Smith 1949-8-9 1249 Humboldt Clam Beach Comment
  JEPS36508  Leontodon saxatilis subsp. saxatilis F. W. Peirson 1926-7-13 7056 Humboldt near Blue Lake; Mad River Comment
  UC582427  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1936-8-23 15168 Humboldt vicinity Carlotta 30 Comment
  HSC64787  Lepidium densiflorum J. P. Smith, Steve Selva 1970-6-14 3843 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  BLMAR462  Lepidium nitidum Jennifer Anthony-Wheeler 2008-3-7 462 Humboldt Samoa dunes, growing in Samoa #3 Endangered Plant Protection Area 12 Comment
  UC1116217  Lepidium strictum Joseph P. Tracy 1946-5-4 17433 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC13038  Lepidium virginicum var. menziesii C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley. Comment
  RSA259570  Leptosiphon androsaceus Thomas W. Nelson 1975-6-21 1948 Humboldt Hwy 36, 5 miles east of Bridgeville Comment
  CAS-BOT-BC226712  Leptosiphon latisectus Mrs. H. C. Cantelow 1939-6-4 4125 Humboldt N.E. of Garberville Comment
  CAS-BOT-BC341824  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC341826  Lessingia nemaclada Alice Eastwood 1921-7-21 10674 Humboldt Vanduzen [Van Duzen] River Comment
  UC1199275  Leucanthemum vulgare Joseph P. Tracy 1918-7-21 5080 Humboldt around Humboldt Bay; Humboldt Hill 152 Comment
  UC1199276  Leucanthemum vulgare Joseph P. Tracy 1930-8-24 9167 Humboldt Kneeland Prairie 609 Comment
  UC535742  Leucanthemum vulgare Eleanor Armstrong 1168 Humboldt Richardson Grove Comment
  HSC48404  Lewisia leeana Brad Klipfel 1973-6-10 94 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC44553  Lewisia triphylla Brad Klipfel 1973-7-15 172 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC673016  Lewisia triphylla Joseph P. Tracy 1932-7-10 10376 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC283516  Leymus X vancouverensis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  UC1100250  Leymus X vancouverensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1204 Humboldt ca 2 mi n Eureka (salt marshes bordering bay); Humboldt Bay Comment
  HSC75877  Ligusticum apiifolium Bill Copeland 1980-7-2 575 Humboldt Near Snow Camp Mtn. 1311 Comment
  JEPS17502  Ligusticum apiifolium J. P. Tracy 1900-10-7 971 Humboldt Eureka Comment
  HSC56004  Ligusticum grayi Overton, Butler 1979-7-31 11455 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UCD127580  Lilaeopsis occidentalis Malcolm A. Nobs; S. Galen Smith 1949-8-3 1166 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  CAS-BOT-BC508393  Lilium columbianum Doris K. Kildale 1927-7-10 3739 Humboldt Gans Prairie, Bald Hills Comment
  SEINET12047013  Lilium columbianum F. H. Utech 1978-1 78 -260 Humboldt ca 2.5 km S of Del Norte/Humboldt County line on US 101 Comment
  SEINET12057695  Lilium columbianum F. H. Utech 1978-6-30 78 -260 Humboldt ca 2.5 km S of Del Norte/Humboldt County line on US 101 Comment
  HSC33664  Lilium occidentale Doris K. Niles, Thomas W. Nelson 1974-6-20 Humboldt Wiggins Ranch, W of garbage dump Comment
  UC1198242  Lilium occidentale Joseph P. Tracy 1913-8-31 4387 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC56955  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-23 9465 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  HSC57043  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-24 9687 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1198231  Lilium rubescens Joseph P. Tracy 1911-7-7 3419 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow Creek and Campbell Creek, near the summit) 1219 Comment
  UC668183  Limnanthes douglasii subsp. nivea Joseph P. Tracy 1935-5-25 13863 Humboldt Fort Seward 106 Comment
  SEINET7253531 Image available Limonium californicum Joseph P. Tracy 1901-1 1254 Humboldt At Samoa 1 Comment
  JEPS58157  Linanthus androsaceus Milo S. Baker 1923-7-20 45 Humboldt Yager Creek 609 Comment
  UC1198546  Linanthus bolanderi Joseph P. Tracy 1908-6 2819 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  UC1561309  Linum bienne Barbara Ertter with Thomas J. Delendick 1987-5-16 6911 Humboldt 8 mi e of Arcata (9 1/2 mi w of Lord Ellis Summit, Highway 299 roadside); Highway 299 Comment
  HSC59497  Linum bienne M. A. Ericksen 1979-5-23 304 Humboldt 880 Central Ave., McKinleyville. Comment
  UC1222184  Listera caurina Joseph P. Tracy 1951-6-26 19555 Humboldt Snow Camp Comment
  RSA0049664  Listera cordata Dean Wm. Taylor 2011-5-4 21113 Humboldt Alderpoint Road in the vicinity of headwaters of Knack Creek 777 Comment
  UC1442907  Listera cordata Theodore F. Niehaus 1970-4-14 914 Humboldt ca. 5 mi w Yager-Bridgeville road (on Redwood House road) Comment
  CHSC20342  Lithocarpus densiflorus D. E. Anderson 1963-9-1 2805 Humboldt Near Kneeland. 731 Comment
  UC1083192  Lithocarpus densiflorus Herbert L. Mason 1928-7-14 4899 Humboldt near Garberville (East Fork of Eel River); East Fork of Eel River Comment
  SEINET12034163  Lithocarpus densiflorus K. S. Erdman 1970-1 4793 Humboldt Redwood Natl Park naer Holter Ridge entrance on the Bald Hills road SE of Orick;T10N,R2E,Sec18 Comment
  SFV7744  Lithocarpus densiflorus var. densiflorus T. Gordon, K. Kimbrough 1975-8-22 1226 Humboldt Humboldt Redwoods State Park. 61 Comment
  HSC45399  Lithophragma campanulatum Thomas W. Nelson, Jane Nelson 1977-6-19 3492 Humboldt N of Goat Hill 1616 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
  HSC10312  Lolium perenne N. R. Waite 1965-5-19 43 Humboldt W edge of Humboldt State University campus. Comment
  UC1103482  Lolium perenne Joseph P. Tracy 1937-6-6 15331 Humboldt Ferndale 15 Comment
  RSA21589  Lomatium dasycarpum subsp. dasycarpum C. B. Wolf 1937-8-13 9234 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC642280  Lomatium dissectum var. dissectum Joseph P. Tracy 1930-6-29 8808 Humboldt lower foothills on n.w. slope Buck Mt.; Northern Coast Ranges, Buck Mt. 762 Comment
  HSC103420  Lomatium dissectum var. multifidum J. McIntire, S. Lyon 2005-6-3 3 Humboldt White Oak Opening; 19.3 mi. south of Hwy. 299 on Forest Service Rd. NF1. 1240 Comment
  HSC55320  Lomatium macrocarpum Terry Griswold, Butler 1979-7-10 7117 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC70564  Lomatium macrocarpum M. A. Baker 1980-7-23 3141 Humboldt Near Orleans Mtn. 1859 Comment
  UC1197153  Lomatium macrocarpum Joseph P. Tracy 1949-8-4 18417 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  UC32502  Lomatium macrocarpum W. C. Blasdale 1896-6-6 Humboldt Kneeland's Pr. Comment
  UC1197155  Lomatium macrocarpum Joseph P. Tracy 1937-7-24 15522 Humboldt head of Devil's Hole (Trinity Summit); , Devil's Hole 1676 Comment
  HSC97454  Lomatium nudicaule Cara Witte 2007-6-7 234 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  SEINET12118910  Lomatium nudicaule J. P. Tracy 1951-1 19573 Humboldt Twin Lakes vicinity (Snow Camp & Twin Lakes Trip) Comment
  HSC44439  Lomatium tracyi Barbara Kelly 1978-5-1 589 Humboldt 1/4 mi. from Horse Mtn., road 1/2 mi. below turnoff to summit, near end of unused gravel road Comment
  HSC40704  Lomatium tracyi Barbara Kelly, Thomas W. Nelson 1977-6-15 503 Humboldt .25 mi. past Horse Mountain Rd., along dirt road just below road to ski area 1402 Comment
  UC906644  Lomatium triternatum var. triternatum Joseph P. Tracy 1942-6-23 17228 Humboldt 1 mi. w. Box Camp (Trinity Summit); Trinity Summit 1219 Comment
  UC1714577  Lomatium utriculatum unknown 1191 Humboldt Humboldt Bay Comment
  CHSC31276  Lonicera hispidula Mark Stopher 1980-5-28 73 Humboldt Growing on Lithocarpus densiflorus along Rte 169, 1.8 mi E of Martins Ferry Bridge. Comment
  SEINET11168851 Image available Lonicera involucrata Unknown 1974-8-11 Humboldt Trinidad Comment
  HSC45276  Lonicera involucrata var. ledebourii Brad Klipfel 1974-4-27 312 Humboldt SW side of Big Lagoon. Comment
  HSC83836  Lonicera involucrata var. ledebourii F. R. Fosberg 1948-8-28 30053 Humboldt Dry Lagoon. Comment
  UC602564  Lonicera involucrata var. ledebourii Joseph P. Tracy 1937-6-20 15343 Humboldt 10 miles upstream from mouth Bear River 152 Comment
  UC162798  Lotus aboriginus Joseph P. Tracy 1906-6-10 2485 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS20790  Lotus aboriginus W. L. Jepson 1902-6 1944 Humboldt Berry Ranch Redwood Creek Comment
  UC1223442  Lotus aboriginus Joseph P. Tracy 1937-8-15 15668 Humboldt 10 mi se Orick (near Sherman Lyon's Ranch) Comment
  HSC98244  Lotus humistratus H. E. Parks Aug 1941 24183 Humboldt Little River State Park Comment
  HSC45023  Lotus humistratus R. Sutherland 1978-4-23 19 .23478 Humboldt Road near head of Kinsey Ridge 732 Comment
  HSC97929  Lotus nevadensis var. douglasii Cara Witte 2007-6-14 284 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  JEPS55784  Lotus purshianus var. purshianus Joseph P. Tracy 1918-7-5 5015 Humboldt White Thorne Valley Northern Coast Ranges 304 Comment
  UC168986  Lotus purshianus var. purshianus Joseph P. Tracy 1912-7-4 3731 Humboldt near Hydesville; Northern Coast Region 60 Comment
  JEPS55746  Lotus purshianus var. purshianus W. L. Jepson 1936-8-12 17879 Humboldt Miranda South Fork Eel River Comment
  POM276673  Lotus scoparius var. scoparius Lyman Benson 1928-7-1 468 Humboldt Weott Ranger Station. 61 Comment
  HSC57120  Luina hypoleuca Overton, Butler 1979-7-25 9865 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC31211  Lupinus albicaulis D. E. Anderson 1972-6-20 5736 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC1223271  Lupinus albifrons Joseph P. Tracy 1939-5-14 16289 Humboldt opposite Buck Mountain (near Dinsmore's); Van Duzen River, near Dinsmore's 762 Comment
  HSC44522  Lupinus andersonii Brad Klipfel 1973-7-1 129 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1129354  Lupinus arboreus H. L. Person 1932-7-18 Humboldt Freshwater; Eureka Quad. Comment
  UC484046  Lupinus arboreus Carl B. Wolf 1930-10-28 1780 Humboldt Samoa; Humboldt Bay, Samoa 15 Comment
  UCD106589  Lupinus arboreus Linda M. Barker 1976-5-13 1472 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA246780  Lupinus arboreus var. arboreus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35328 Humboldt Clam Beach County Park: along highway. 3 Comment
  RSA407033  Lupinus arboreus var. arboreus Charlotte M. Hoak 1931-7-14 s.n. Humboldt Above Eureka. Comment
  SBBG3622  Lupinus formosus H. and M. Dearing 1939-5-24 3425 Humboldt W of Panther Gap, Dyerville, Honeydew Comment
  SEINET12154562  Lupinus latifolius J. P. Tracy 1939-1 16415 Humboldt Grouse Mtn, "Clear Lake" 1524 Comment
  HSC14854  Lupinus latifolius subsp. latifolius R. Spellenberg 1965-6-14 1132 Humboldt 6 mi. E of Freshwater on Rd. to Kneeland Comment
  JEPS65283  Lupinus latifolius var. latifolius Lincoln Constance 1934-5-29 714 Humboldt Upper Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC169321  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-7-21 3766 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  SBBG3657  Lupinus latifolius var. viridifolius H. and M. Dearing 1939-5-24 3416 Humboldt 5 mi S of Alton Comment
  UC1223259  Lupinus lepidus var. lobbii Joseph P. Tracy 1940-7-7 16672 Humboldt ridge back Clear Lake (Grouse Mountain); , ridge back of Clear Lake 1524 Comment
  UC15962  Lupinus lepidus var. sellulus Harley P. Chandler Jun 1901 1498 Humboldt Klamath River Comment
  UC156999  Lupinus luteolus Joseph P. Tracy 1908-6 2696 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC169350  Lupinus luteolus Joseph P. Tracy 1912-7-26 3871 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA32650  Lupinus luteolus Doris K. Kildale 1926-7-11 2347 Humboldt Bear River at Capetown. Comment
  UCD108608  Lupinus luteolus R. Tofsrud 1951-1 s.n. Humboldt Exact location unknown. Comment
  UC161546 Image available Lupinus microcarpus Joseph P. Tracy 1911-7-4 3280 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River, Willow Creek; Willow Creek, Humboldt Co. 152 Comment
  UC1197271  Lupinus nanus Joseph P. Tracy 1913-6-11 4090 Humboldt near Little Van Duzen Bridge 762 Comment
  UCD109339  Lupinus pachylobus W. Williams 1951-1 s.n. Humboldt Bear Creek Valley. Comment
  POM304177  Lupinus rivularis Ynez Whilton Winblad 1941-6-28 s.n. Humboldt Between Orick and Crescent City. Comment
  SBBG13907  Lupinus rivularis H. and M. Dearing 1939-6-23 3694 Humboldt 12 mi E of Arcata Comment
  SEINET10837864  Lupinus rivularis Donald E. Bright 1962-6-11 Bright 276 Humboldt Growing with hemlock and redwood, 1 mi n of trinidad. Comment
  HSC58361  Lupinus tracyi G. L. Clifton, Griswold 1979-7-26 10194 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  RSA168863  Luzula comosa Joseph P. Tracy 1928-6-17 8449 Humboldt Serpentine soil near Ruby Creek, Willow Creek Canyon, along Trinity Highway. Comment
  RSA168865  Luzula comosa Joseph P. Tracy 1951-6-26 19546 Humboldt Snow Camp Meadow. Comment
  UC1152137  Luzula comosa Joseph P. Tracy 1938-5-8 15738 Humboldt 4 mi e town (vicinity of Carlotta, edge of woods near Cummings Creek); near Cummings Creek, vicinity of Carlotta 30 Comment
  HSC14138  Luzula parviflora H. E. Parks, S. T. Parks Jun 1952 22446 Humboldt Bishop Pine Lodge, Trinidad Comment
  HSC102059  Luzula subcongesta M. R. Mesler, Robin Bencie, K. A. Wayman 2011-7-12 1165 Humboldt Patterson Meadows 1566 Comment
  UCR263353  Luzula subsessilis Peter F. Zika 2011-7-3 25492 Humboldt Outer North Coast Ranges (NCoRo), Titlow Hill Road, 3.0 road miles SE of Route 299 at Berry Summit, 1 air km SW of Horse Mountain 1310 Comment
  RSA590653  Lycopodiella inundata Doris K. Kildale 1929-7-10 s.n. Humboldt Big Lagoon Comment
  HSC77926  Lycopodium clavatum L. P. Janeway 1984-3-14 715 Humboldt Arcata Community Forest, at edge of access road, NW-facing slope. 229 Comment
  JEPS63277  Lycopus americanus Joseph P. Tracy 1924-8-31 6853 Humboldt Klamath R. at mouth of Bluff Creek; Klamath R. 91 Comment
  UC1222700  Lysichiton americanus Joseph P. Tracy 1950-4-20 18612 Humboldt along Van Duzen R. 1 mi. w. Dinsmore's; Van Duzen R. Comment
  HSC15935  Lythrum hyssopifolia W. C. Vinyard, D. E. Anderson 1961-10-12 Humboldt Humboldt State College Campus. Comment
  HSC5319  Madia elegans H. E. Parks, J. P. Tracy 1930-5-25 882 Humboldt Laribee Valley 762 Comment
  UC129392  Madia elegans Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5681 Humboldt Hoops Mt. Hoopa Mt. Comment
  RSA275381  Madia elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1976-7-1 2894 Humboldt Growing on serpentine ridge north of Bear Creek 1463 Comment
  HSC31215  Madia exigua D. E. Anderson 1972-6-20 5733 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC73178  Madia exigua M. A. Baker 1980-5-18 1336 Humboldt Near Black Mtn. 792 Comment
  UC582407  Madia gracilis Joseph P. Tracy 1935-7-23 14132 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  HSC98983  Madia gracilis Cara Witte 2007-7-3 403 Humboldt National Forest 1 on Kinsey Ridge. 1 1/2 miles north of intersection with 4N09. 1396 Comment
  JEPS40411  Madia gracilis W. L. Jepson 1902-7-1 1967 Humboldt at Berry's Ranch; Redwood Creek Comment
  UC165211  Madia gracilis J. P. Tracy 1909-9-12 2085 Humboldt near Buhne's Point; Eureka 0 Comment
  RSA0010424  Madia gracilis subsp. pilosa Joseph P. Tracy 1931-6-28 9588 Humboldt Northern Coast Ranges: Buck Mountain, lower foothills of its northwest slope. 762 Comment
  HSC91908  Madia sativa E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC508508  Maianthemum dilatatum M. Louise Hutchinson 1913-4-1 s.n. Humboldt Eureka Comment
  CAS-BOT-BC508513  Maianthemum dilatatum Ira L. Wiggins 1957-6-19 14131 Humboldt Trinidad Comment
  CAS-BOT-BC508521  Maianthemum dilatatum L. R. Abrams; R. Bacigalupi 1922-6-25 8300 Humboldt Near northern county line Comment
  RSA376907  Maianthemum dilatatum Larry E. DeBuhr, Gary D. Wallace 1972-5-22 606 Humboldt About 25 miles north of Arcata on the south end of Big Lagoon. Comment
  HSC57027  Maianthemum stellatum Overton, Butler 1979-7-24 9648 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC479395  Malacothrix floccifera Marcus E. Jones, A. M. 1931-7-15 29095 Humboldt e of Arcata (junction) Comment
  UC535702  Malacothrix floccifera Eleanor Armstrong 1934-8-24 1191 Humboldt Richardson Grove 121 Comment
  CAS-BOT-BC347411  Malacothrix floccifera Joseph P. Tracy 1911-7-4 3278 Humboldt Northern Coast Ranges. Along Willow Creek. (Tributary of Trinity River, Humboldt County) near its mouth 152 Comment
  RSA151816  Malus fusca H. E. Parks 1939-05 s.n. Humboldt Trinidad, Spruce cove, near sea level. Comment
  RSA25800  Malus fusca Carl B. Wolf 1941-7-28 11088 Humboldt between the redwood highway and Crannell. 8 Comment
Read comments
Jun 17 2020
  UC484032  Malus fusca C. B. Wolf 1930-10-26 Humboldt s edge Big Lagoon (near the Redwood Highway) 3 Comment
  UC555510  Malus fusca H. L. Mason 1932-7-21 7101 Humboldt Big Lagoon Comment
  UC168942  Marah oregana Joseph P. Tracy 1911-8-27 3532 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS42490  Marah oregana W. L. Jepson and W. W. Mott 1903-6-23 2207 Humboldt White Thorn; s. Humboldt Co. Comment
  HSC39795  Matricaria discoidea Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  UCD106774  Medicago arabica W. Williams 1951-5-11 s.n. Humboldt location unknown. Comment
  HSC71609  Medicago lupulina J. P. Smith, Steve Selva 1970-6-14 3815 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC1145133  Melica aristata Joseph P. Tracy 1937-7-25 15549 Humboldt 2 mi e Grove's Prairie (on ridge); Trinity Summit 1524 Comment
  UC1145138  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Willow Creek Trinity River Valley (Trinity River Valley) 152 Comment
  UC277170  Melica californica Joseph P. Tracy 1921-5-30 5491 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  SEINET200333 Image available Melica harfordii Joseph P. Tracy 1913-6-13 4116 Humboldt Bolander Rocky Mountain slopes; near summit of ridge between Van Duzen and Mad rivers on Dinsmore's Ranch. 1067 Comment
  UC1132276  Melica harfordii H. L. Person 1932-5-12 Humboldt 10 mi n Garberville (Redwood Highway); Briceland Quad. Comment
  UC1132278  Melica harfordii H. L. Person 1932-5-11 Humboldt near Arcata 0 Comment
  HSC74687  Melica subulata Gail Newton 1981-8-7 2441 Humboldt Near Bug Creek. 1042 Comment
  UC34140  Melica subulata Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5405 Humboldt Hubbard's Station; North Coast Ranges Comment
  UCD88641  Melica subulata A. H. Murphy 1950-5-5 s.n. Humboldt Bald Hills Rd., about 3 mi. east Orich. Comment
  UCD88645  Melica subulata A. H. Murphy 1951-5-15 30 Humboldt 1/2 mile south of South Fork on McCann Road. Comment
  UCD88673  Melica subulata R. Tofsrud 1949-7-1 s.n. Humboldt On road from Scotia to Capetown. Comment
  JEPS63454  Mentha pulegium Joseph P. Tracy 1936-8-2 15078 Humboldt Orick 15 Comment
  UC535736  Mentha pulegium Eleanor Armstrong 1156 Humboldt Richardson Grove Comment
  UC577377  Mentha spicata Joseph P. Tracy 1925-8-16 7233 Humboldt Trinity River Valley, near the South Fork; Northern Coast Ranges, Trinity River Valley, near South Fork 182 Comment
  UC166483  Mentzelia laevicaulis var. laevicaulis Joseph P. Tracy 1908-6 2933 Humboldt Opposite Buck Mountain; Northern Coast Ranges,Valley of Van Duzen River 762 Comment
  JEPS86110  Menziesia ferruginea Wayne Roderick 1965-6-5 Humboldt 0.5 mi s of Del Norte-Humboldt County line 152 Comment
  HSC7850  Menziesia ferruginea subsp. ferruginea F. Morrell 1949-4-22 11 Humboldt Back Humboldt State University fish hatchery Comment
  CAS-BOT-BC429181  Micranthes oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  UC204745  Microseris laciniata subsp. laciniata Joseph P. Tracy 1918-7-3 4997 Humboldt Shelter Cove Northern Coast Ranges, Shelter Cove 15 Comment
  UC1199450  Microseris nutans Joseph P. Tracy 1933-7-25 12886 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  SEINET178573  Microsteris gracilis Parks, Tracy 1930-5-25 0795 Humboldt Laribee Valley 792 Comment
  HSC69814  Mimulus alsinoides Thomas W. Nelson, Jane P. Nelson 1978-5-25 3801 Humboldt Above E Fork of Willow Creek just upstream from S.R. 299 bridge 457 Comment
  BLMAR194  Mimulus aurantiacus Donald Hazlett 1994-6-7 194 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC20644  Mimulus aurantiacus var. aurantiacus Francis Winter 1960-4-23 Humboldt 4 mi. S of Maple Creek 213 Comment
  JEPS10232  Mimulus aurantiacus var. aurantiacus Lincoln Constance 1934-5-26 657 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  UC582443  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1934-7-12 13379 Humboldt Big Lagoon 152 Comment
  UC1011928  Mimulus aurantiacus var. aurantiacus Francis W. Pennell 1940-7-8 26109 Humboldt above beach s Trinidad; Route 101 30 Comment
  JEPS10550  Mimulus breweri W. L. Jepson 1902-7-23 2108 Humboldt Trinity Summit 2133 Comment
  UC1115824  Mimulus breweri Joseph P. Tracy 1939-7-9 16337 Humboldt Snow Camp 1402 Comment
  UC169098  Mimulus cardinalis Harley P. Chandler 1901-6-16 1520 Humboldt Somes Bar North Coast Ranges, Klamath River 426 Comment
  HSC20710  Mimulus dentatus R. C. Wunner 1962-5-21 Humboldt Redwood Creek, 50 yds. from trail to HSC. Dorm on road to reservoir Comment
  UC176955  Mimulus grandis Joseph P. Tracy 1912-6-16 3704 Humboldt region about Humboldt Bay (Hookton); Northern Coast Region 0 Comment
  HSC102597  Mimulus guttatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1584 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC49095  Mimulus guttatus Patricia Shesgreen 1978-7-30 116 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  HSC22498  Mimulus guttatus G. Ghatala 1967-7-18 6 Humboldt Comment
  RSA167241  Mimulus guttatus Joseph P. Tracy 1950-6-8 18745 Humboldt Near Capetown. Cape Ridge. One mile east of Cape Mendocino. 152 Comment
  RSA454336  Mimulus guttatus Francis W. Pennell, Joseph P. Tracy 1940-7-7 26087 Humboldt Route 299. Headwaters of Willow Creek. 762 Comment
  RSA60480  Mimulus guttatus John H. Thomas 1949-6-12 896 Humboldt Along road between Orick and Martin's Ferry. 15.5 miles west of Martin's Ferry. 762 Comment
  UC582716  Mimulus inodorus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8983 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1222804  Mimulus layneae Joseph P. Tracy 1950-7-1 18955 Humboldt Friday Ridge 1219 Comment
  HSC55628  Mimulus moschatus Overton, Butler 1979-7-24 9626 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC56038  Mimulus moschatus G. L. Clifton, Griswold 1979-7-31 11603 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC48311  Mimulus moschatus Brad Klipfel 1978-8-3 296 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC147917  Mimulus nasutus Joseph P. Tracy 1903-5-22 1883 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  JEPS11056  Mimulus primuloides Joseph P. Tracy 1935-7-26 14258 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  HSC32281  Minuartia douglasii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5631 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CAS-BOT-BC388631  Minuartia douglasii Thomas W. Nelson; James L. Nelson 1980-6-10 5413 Humboldt Six Rivers National Forest. Along Swayback Ridge Road 2.5 miles north of junction with road 1S07 1463 Comment
  HSC57673  Minuartia pusilla G. L. Clifton, Griswold 1979-7-25 10866 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC38489  Mitella caulescens D. E. Anderson, J. P. Smith 1971-6-18 - 1098 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake Comment
  UC492221  Mitella caulescens Joseph P. Tracy 1932-7-16 10634 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC154085  Mitella ovalis Joseph P. Tracy 1901-4-26 1049 Humboldt Humboldt Hill Northern Coast Region, Region about Humboldt Bay 0 Comment
  HSC49620  Mitella ovalis R. York 1979-4-9 212 Humboldt Behind HSU campus Comment
  HSC102031  Mitella trifida M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 933 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC55834  Mitella trifida G. L. Clifton, Griswold 1979-7-25 10760 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC100651  Mitella trifida Carl C. Marshall Mar 1886 153 Humboldt Wet shaded places. Comment
  HSC32260  Moehringia macrophylla J. O. Sawyer 1970-6-24 2275 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC4287  Moehringia macrophylla Lincoln Constance 1934-6-19 908 Humboldt Near summit of Grasshopper Peak, S Fork Eel River, Bull Creek region 915 Comment
  HSC45434  Monardella odoratissima subsp. odoratissima Thomas W. Nelson, Jane P. Nelson 1978-7-2 4398 Humboldt Along FS 2S08 near Pine Mountain 1463 Comment
  UC577345  Monardella odoratissima subsp. pallida Joseph P. Tracy Jul 16 1930-Jul 19 1930 8911 Humboldt South Fork Mountain, near McKay Camp; Northern Coast Ranges 1676 Comment
  UC577400  Monardella purpurea Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 1310 Comment
  CAS-BOT-BC220255  Monardella sheltonii Carl B. Wolf 1937-8-13 9223 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on New Road towards Trinity Summit 1219 Comment
  HSC35703  Monardella sheltonii Thomas W. Nelson, B. Reinhardt 1975-7-30 2119 Humboldt Beside private road to Pilot Rock Comment
  UC2035937  Monardella villosa C. Epling Aug 1933 Humboldt Richardson Grove Comment
  JEPS62397  Monardella villosa subsp. villosa W. L. Jepson 1927-7-3 12370 Humboldt Garberville South Fork Eel River 365 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
  UC1223242  Montia chamissoi Joseph P. Tracy 1951-6-14 19415 Humboldt Snow Camp Meadows Comment
  CAS-BOT-BC444803  Montia diffusa Joseph P. Tracy 1937-6-27 15379 Humboldt Four-Mile Creek (west of mouth of South Fork of Trinity). 670 Comment
  UC161050  Montia fontana Joseph P. Tracy 1909-5-2 2955 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UC162352  Montia fontana Joseph P. Tracy 1904-4-3 2004 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  POM163985  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Eureka Comment
  HSC17670  Montia parvifolia D. E. Anderson 1965-5-22 3726 Humboldt 9.4 mi. S of Bridgeville, along road to Blocksburg Comment
  POM203679  Montia parvifolia I. L. Wiggins 1932-7-7 5879 Humboldt Sand dunes near Samoa Comment
  HSC44733  Morella californica Maralyn O'Meara 1971-10-25 54 Humboldt S side of Big Lagoon Comment
  HSC89420  Morella californica P. A. Daly 1986-1-4 37 Humboldt Trinidad Head 61 Comment
  HSC90235  Morella californica L. Watson, J. Meninga Aug 1990 8 Humboldt Mad River Slough and Dunes, N of parking lot, W of trail, near Manilla Comment
  UC526746  Muhlenbergia filiformis Joseph P. Tracy 1933-7-25 12833 Humboldt moist gravelly flat North Coast Ranges, Grouse Mountain 1524 Comment
  HSC69535  Myosotis sylvatica R. Kalal 1979-5-20 73 Humboldt Logging road E of HSU campus, Arcata 58 Comment
  SEINET201033  Nassella pulchra Joseph P. Tracy 1927-5-8 7963 Humboldt Phillipsville. 122 Comment
  UC526767  Nassella pulchra Joseph P. Tracy 1927-5-8 7963 Humboldt slopes facing South Fork of Eel River; Northern Coast Ranges, Phillipsville 121 Comment
  UC1197901  Navarretia capillaris Joseph P. Tracy 1935-7-28 14314 1/2 Humboldt head Devil's Hole , head of Devil's Hole (Trinity Summit) 1828 Comment
  HSC96212  Navarretia capillaris April A. Allard, Gregory O'Connell 2005-6-15 12 Humboldt NE of Grouse Mtn. 1447 Comment
  HSC42587  Navarretia pubescens Maralyn O'Meara 1974-7-11 532 Humboldt Kneeland, Barry Ridge Comment
  CDA40110  Navarretia squarrosa E. C. Whitney 1976-7-22 s.n. Humboldt Vic Guynup property, Field Brook. 0 Comment
  OBI22891  Navarretia squarrosa H. E. Parks, S. T. Parks 24442 ` Humboldt Trinidad, Spruce Groove. 76 Comment
  UC52878  Navarretia tagetina Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Comment
  HSC71028  Nemophila menziesii var. atomaria Thomas W. Nelson 1977-4-20 3320 Humboldt Along FS 1N15 between Hwy. 36 and summit 915 Comment
  UC1239752  Nemophila menziesii var. atomaria Joseph P. Tracy 1923-4-1 6174 Humboldt 3 mi e Blue Lake (Mankin Place); e of Blue Lake, Mankin Place 274 Comment
  UC562582  Nemophila menziesii var. atomaria Joseph P. Tracy 1923-4-15 6191 Humboldt at Berry's North Coast Ranges, , Berry's (Redwood Creek) 274 Comment
  UC1239749  Nemophila parviflora Joseph P. Tracy 1921-4-24 5437 Humboldt Phillipsville Flat Northern Coast Ranges, , South Fork Eel Ri (South Fork Eel River) 91 Comment
  HSC77393  Nemophila pedunculata L. P. Janeway 1983-4-16 234 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  UC176993  Nemophila pedunculata Joseph P. Tracy 1913-5-4 4065 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  SDSU6713  Notholithocarpus densiflorus Harvey 1939-7-16 3003 Humboldt Comment
  CAS-BOT-BC400074  Nuphar polysepala L. R. Abrams 1918-6-16 7160 Humboldt Willow Creek Comment
  HSC48251  Nuphar polysepala James Hansen 1975-5-28 Humboldt Essex pond on Essex Ranch, .5 mi. N of Hwy. 299 near Blue Lake Comment
  HSC59108  Nuttallanthus texanus M. A. Baker 1978-5-6 481 Humboldt 2 km. S of Weitchpec Comment
  CAS-BOT-BC142295  Oemleria cerasiformis Doris K. Kildale 1927-6-25 3567 Humboldt Shelton Cove in gully. Comment
  CAS-BOT-BC142300  Oemleria cerasiformis C. Hart Merriam 1918-8-11 s.n. Humboldt Blue Lake Comment
  HSC100095  Oemleria cerasiformis J. P. Smith, & J. O. Sawyer 2010-3-22 12712 Humboldt Along Hwy. 36, E of Dinsmore. 780 Comment
  HSC79334  Oemleria cerasiformis D. H. Norris 1970-5-20 12218 Humboldt Crest of Big Hill Rd. E of Hoopa Comment
  RSA178545  Oemleria cerasiformis Joseph P. Tracy 1950-4-20 18618 Humboldt Buck Mountain, lower foothills of its northwest slope. 2 miles west of Dinsmore's. 762 Comment
  UC1400342  Oenanthe sarmentosa Robert F. Thorne and P. Everett 1965-8-9 35318 Humboldt Clam Beach County Park 3 Comment
  HSC36315  Oenanthe sarmentosa Edward J. Grabek 1973-5-23 73523 .5 Humboldt Margin of N Clam Beach pond Comment
  UC203990  Oenothera wolfii Joseph P. Tracy 1918-7-1 4968 Humboldt moist bluff Northern Coast Ranges, Cape Mendocino (three mi s of point of cape) 3 Comment
  UC1196382  Olsynium douglasii var. douglasii Joseph P. Tracy 1913-5-4 4052 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC35314  Orobanche pinorum Chestnut and Drew 1888-7-20 Humboldt Pilot Creek. Comment
  UC1197442  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1941-4-26 16865 Humboldt Kneeland Prairie. Comment
  HSC56306  Orthocarpus imbricatus Walter Overton, Marvin Butler 1979-8-2 12618 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  UC41915  Orthocarpus imbricatus Chesnut and Drew Aug. 1888 Humboldt head of Redwood Creek Comment
  POM147450  Orthocarpus purpurascens var. latifolius Joseph P. Tracy 1925-8-14 7230 Humboldt Near Samoa, on Humboldt Bay. Comment
  HSC55634  Osmorhiza berteroi Overton, Butler 1979-7-24 9649 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC75448  Osmorhiza occidentalis J. O. Sawyer 1980-7-18 3582 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC642276  Osmorhiza occidentalis Joseph P. Tracy 1927-6-12 8157 Humboldt Horse Mountain; lower slopes 1219 Comment
  UC1197130  Osmorhiza occidentalis Joseph P. Tracy 1936-6-17 14948 1/2 Humboldt Buck Mountain Northern Coast Ranges (lower foothills, on nw slope) 762 Comment
  HSC59400  Osmorhiza purpurea Rick Lundquist 1979-5-2 55 Humboldt SE corner 7th & Union Streets 24 Comment
  HSC16711  Oxalis oregana D. E. Anderson 1965-5-15 3689 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC83316  Oxalis oregana R. W. Becking 1987-5-2 Humboldt Humboldt State University campus, adjacent to back steps on S side of Natural Resources building Comment
  HSC16715  Oxalis pes-caprae W. F. Nickel 1965-5-15 Humboldt W side of College Elementary School, H.S.C. Campus Comment
  HSC6137  Packera bolanderi H. E. Parks, S. T. Parks May 1930 747 Humboldt Near Blue Slide on the middle Van Duzen River Comment
  CAS-BOT-BC318152  Packera bolanderi var. bolanderi E. Hawver 1915-6-1 s.n. Humboldt near Carlotta Comment
  HSC79057  Packera macounii D. K. Imper 1983-7-12 659 Humboldt Blue Creek Mtn. Comment
Read comments
May 27 2013
  UC212875  Panicum acuminatum var. acuminatum Joseph P. Tracy 1920-8-15 5356 Humboldt Klamath River Bluff Creek; Northern Coast Ranges, Klamath River at Bluff Creek 152 Comment
  UC249798  Panicum acuminatum var. acuminatum Joseph P. Tracy 1923-6-24 6350 Humboldt near High Prairie (Felt Prairie, Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC253706  Panicum capillare Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  SEINET200951 Image available Panicum capillare Joeseph P. Tracy, A. S. Hitchcock 1908-7-30 2929 Humboldt Valley of van Duzen River Opposite Buck mountain. Comment
  CDA2147  Panicum miliaceum T. R. Haig 1975-8-27 Humboldt Korbel. 0 Comment
  RSA44527  Panicum oligosanthes var. scribnerianum Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  HSC39757  Parapholis strigosa Peter Sorensen 1976-7-11 Humboldt Woodley Island. Comment
  HSC12554  Parentucellia viscosa D. La Conte 1970-7-7 17 Humboldt Comment
  HSC37849  Parentucellia viscosa Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  HSC39944  Parentucellia viscosa Linda M. Barker 1976-7-5 1640 Humboldt 3 mi. W of Arcata Comment
  JEPS4478  Parentucellia viscosa Joseph P. Tracy 1923-6-18 6284 Humboldt 1 mi s of point Cape Mendocino; Northern Coast Ranges 152 Comment
  UCSB15925  Parentucellia viscosa Breedlove, Dennis 1962-6-8 Humboldt Near coast on U.S. Highway 101, 3 miles south of Orick Comment
  RSA44543  Paspalum distichum Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  UC552749  Paspalum distichum Joseph P. Tracy 1934-7-30 13498 Humboldt on coast near Stone Lagoon (Dry Lagoon); North Coast Ranges, near Stone Lagoon, Dry Lagoon 3 Comment
  HSC24106  Paxistima myrsinites J. O. Sawyer 1971-6-14 2378 Humboldt E Fork of Horse Linto Creek at Grizzly Camp. 1341 Comment
  HSC56113  Paxistima myrsinites Gilbert Muth 1979-8-1 11880 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  RSA183642  Paxistima myrsinites D. E. Anderson 1965-6-1 3776 Humboldt Along Friday Ridge Road. 1067 Comment
  HSC100679  Pedicularis densiflora Carl C. Marshall Apr 1887 379 Humboldt Hoopa Valley. Comment
  UC1222452  Pedicularis densiflora Joseph P. Tracy 1923-3-17 6160 Humboldt vicinity of Garberville 121 Comment
  UC90221  Pedicularis groenlandica Joseph P. Tracy 1947-7-5 17824 Humboldt at Box Camp Box Camp; Trinity Summit 1463 Comment
  POM266544  Pedicularis racemosa Lester Rowntree 1937-8-9 s.n. Humboldt Summit Happy Camp Rd. Comment
  HSC72695  Pellaea brachyptera Gail Newton 1980-6-24 595 Humboldt Near Ladder Rock 1570 Comment
  SEINET13262761  Pellaea densa Unknown 1912-7-26 3849 Humboldt KNEELAND PRAIRIE 762 Comment
  HSC55728  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-26 10200 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  HSC76257  Penstemon anguineus Teresa Prendusi 1981-7-24 482 Humboldt Near Whiteys Peak 1585 Comment
  UC577414  Penstemon anguineus Joseph P. Tracy 1936-7-5 15035 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  RSA33967  Penstemon heterophyllus subsp. purdyi Doris K. Kildale 1926-4-30 1935 Humboldt Bucilana Bridge. Comment
  HSC73698  Penstemon laetus subsp. sagittatus M. A. Baker 1980-7-15 2971 Humboldt Near Whiting Ridge. 1341 Comment
  HSC72988  Penstemon newberryi M. A. Baker 1980-7-23 3144 Humboldt Near Orleans Mtn. 1859 Comment
  JEPS15454  Penstemon newberryi var. berryi Hilda W. Grinnell 1932-7-9 2 Humboldt McKay Camp South Fork Mountain Comment
  HSC59451  Penstemon newberryi var. berryi Richard Runyon 1979-6-27 40 Humboldt NW of Trinity Summit Station, W of ridge trail 1829 Comment
  HSC56044  Penstemon procerus var. brachyanthus G. L. Clifton, Terry Griswold 1979-7-31 11619 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  RSA167232  Penstemon rattanii subsp. rattanii Joseph P. Tracy 1951-6-24 19533 Humboldt Kneeland Prairie, 'Cameron Hill'. Comment
  HSC99564  Perideridia gairdneri subsp. borealis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 229 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
  UC1389971  Perideridia kelloggii T. I. Chuang, A. Weston, and I. Fukuda 1963-7-4 5877 Humboldt 1 mi s Klamath River (near Willow Creek) Comment
  HSC98799  Perideridia oregana Cara Witte 2007-7-11 511 Humboldt National Forest 1. Approximately 1 mile south of intersection with 5N01. Near Spike Buck Mountain. 1591 Comment
  UC1197118  Perideridia parishii subsp. latifolia Joseph P. Tracy 1932-7-18 10707 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  SEINET3926008  Persicaria maculosa Norman Dennis 1965-6-8 109 Humboldt Samoa Peninsula along the west side of Humboldt Bay.; 0 Comment
  CDA40548  Persicaria wallichii R. Robison 2014-5-5 s.n. Humboldt Adjacent to Trinidad State Beach on Stagecoach Road. 0 Comment
  UC1223042  Petasites frigidus var. palmatus Joseph P. Tracy 1947-2-23 17670 Humboldt near Grizzly Creek; Van Duzen River 91 Comment
  CDA20465  Petrorhagia dubia P. Haggard 2003-9-15 PDR 1285905 Humboldt Northwestern California; Klamath River near Orleans. 0 Comment
  HSC79499  Phacelia bolanderi Kenneth Clark 1980-6-14 677 Humboldt N Fork of Deadman's Gulch 91 Comment
  JEPS1437  Phacelia bolanderi W. L. Jepson 1932-8-9 16536 Humboldt Bull Creek 106 Comment
  RSA30617  Phacelia bolanderi Lincoln Constance, R. C. Rollins 1942-5-20 2999 Humboldt Eel River at Dyerville bridge, two miles north of Weott. 49 Comment
  UC672428  Phacelia bolanderi Herbert L. Mason 1928-7-20 4910 Humboldt near Weitchpec; Klamath River Canyon Comment
  HSC96239  Phacelia heterophylla subsp. virgata Sara March, Gillian Levy 2005-6-8 1 Humboldt 1.7 mi. south of Hwy. 299 on Titlow Hill Rd. 980 Comment
  HSC98658  Phacelia heterophylla subsp. virgata Cara Witte 2007-7-3 416 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  HSC57193  Phacelia mutabilis Griswold, Butler 1979-7-11 6949 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC74222  Phacelia mutabilis M. A. Baker 1980-7-23 3189 Humboldt Near Orleans Mtn. 1859 Comment
  HSC74412  Phacelia mutabilis Gail Newton 1980-8-10 2030 Humboldt Near Blake Mtn. 1707 Comment
  UC526832  Phalaris aquatica Joseph P. Tracy 1927-9-18 8366 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  JEPS49607  Philadelphus lewisii Milo S. Baker 1923-7-20 78 Humboldt between head of Yager Creek and Bridgeville Comment
  LA97948  Philadelphus lewisii Jane Turner; Francis M. Ball 1962-7-10 SK&F- 1145 Humboldt East Fork Willow Creek Forest Camp, Six Rivers National Forest, highway 299 ca. 5 mi. W of Willow Creek 457 Comment
  UC56721  Philadelphus lewisii Harley P. Chandler June, 1901 1333 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC20264  Philadelphus lewisii H. D. Sumner 1959-7-13 Humboldt Dirt road to Hoopa 305 Comment
  UC420417  Philadelphus lewisii P. E. Goddard 1907-6-10 #b. 119 Humboldt Van Duzen Comment
  SEINET12219858  Philadelphus lewisii subsp. californicus L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  HSC74182  Phleum alpinum M. A. Baker 1980-7-22 3105 Humboldt Near Grogan Hole. 1676 Comment
  RSA10146  Phleum pratense Joseph P. Tracy 1933-7-21 12822 Humboldt Valley of South Yager Creek 762 Comment
  RSA728071  Phleum pratense Gary D. Wallace 1979-6-24 1865 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  HSC100894  Phlox adsurgens Carl C. Marshall Jun 1886 324 Humboldt Trail E of Hoopa. Comment
  UC1178966  Phlox douglasii subsp. rigida Joseph P. Tracy 1933-7-11 12657 Humboldt Horse Mountain 1432 Comment
  UC908462  Phlox gracilis Joseph P. Tracy 1930-6-21 8791 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC1222725  Phlox gracilis Joseph P. Tracy 1950-5-7 18648 Humboldt head of Valley of South Yager Creek Valley of South Yager Creek 762 Comment
  UC672850  Phoradendron juniperinum Joseph P. Tracy 1930-7-10 8770 Humboldt Brannan Mt. 1066 Comment
  HSC62753  Phyllospadix scouleri J. M. DiTomaso 1979-4-21 900 Humboldt Elks Head near Trinidad Comment
  HSC45100  Physocarpus capitatus R. Sutherland 1978-5-12 9 .12578 Humboldt 282 Comment
  RSA172348  Physocarpus capitatus Robert F. Thorne 1957-9-2 19000 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  RSA2205  Picea sitchensis C. B. Wolf 1930-10-28 s.n. Humboldt 5 miles S of Ferndale on road to Petrolia. 152 Comment
  RSA246848  Picea sitchensis Robert F. Thorne, P. Everett 1965-8-7 35200 Humboldt Big Lagoon, south end. 2 Comment
  CAS-BOT-BC78289  Pinus attenuata A. A. Heller 1917-7-7 12811 Humboldt Alder Springs grade below Rattlesnake [spring] Spring Comment
  MACF017417  Pinus contorta Trudy R. Ericson 1974-8-5 198 Humboldt Hwy 255 between Eureka and Arcata, near the shore Comment
  UC1204918  Pinus muricata unknown July, 1935 Humboldt 1/2 mi or so back from ocean; Moonstone Beach settlement 60 Comment
  HSC104337  Piperia candida James Regan, Humboldt Redwood Co., LLC Jun 2015 30 Humboldt Nelson Creek 457 Comment
  UC14940  Piperia elegans H. P. Chandler Jun 1901 Humboldt Hupa North Coast Ranges 152 Comment
  HSC44656  Pityopus californicus M. A. Baker 1978-7-19 623 Humboldt Bulk Collection 136 Comment
  UC526826  Plagiobothrys reticulatus Joseph P. Tracy 1927-7-10 8245 Humboldt Alton North Coast Ranges, Alton 60 Comment
  JEPS61045  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1942-5-16 17337 Humboldt Garberville 152 Comment
  UC1222203  Plagiobothrys scouleri Joseph P. Tracy 1949-6-25 18353 Humboldt Box Camp Trinity Summit 1463 Comment
  UC1222205  Plagiobothrys scouleri Joseph P. Tracy 1946-5-30 17549 Humboldt 5 mi e Carlotta (Riverside Park on Van Duzen River); Van Duzen River 30 Comment
  UC1222208  Plagiobothrys scouleri Joseph P. Tracy 1948-6-13 18032 Humboldt between Bridgeville and Blocksburg (on Larrabee Creek road) Comment
  JEPS68130  Plagiobothrys tenellus Joseph P. Tracy 1921-4-24 5649 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC1196130  Plantago elongata Joseph P. Tracy with Dr. F. W. Pennell 1940-7-6 16660 Humboldt w of Table Bluff 6 Comment
  UCD124428  Plantago erecta D. E. Breedlove 1962-6-7 3046 Humboldt 1.5 miles south of Samoa on peninsula on west side of Humboldt Bay. 106 Comment
  HSC37930  Plantago lanceolata Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UCD124573  Plantago lanceolata Linda M. Barker 1976-4-30 1401 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC69585  Plantago lanceolata R. Kalal 1980-7-20 90 Humboldt .2 mi. N of Arcata Marsh project 2 Comment
  UCD124617  Plantago lanceolata Gary Wallace 1966-9-12 706 Humboldt East of Arcata near Willow Creek along Hwy 299. Comment
  HSC83040  Plantago maritima A. L. Eicher 1986-5-10 Humboldt .3 mi. S of the junction of Samoa Blvd. and Vance Ave. 1 Comment
  HSC95094  Plantago maritima Andrea Pickart 2002-6-27 118 Humboldt Mad River Slough and Dunes, N of parking lot area at N end of access road. 0 Comment
  HSC57692  Platanthera dilatata var. leucostachys G. L. Clifton, Griswold 1979-7-25 10917 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  RSA178584  Platanthera sparsiflora Joseph P. Tracy 1950-7-2 18964 Humboldt Happy Camp Mountain (in Trinity Summit Range, 6 miles NE of Hawkins Bar.) Wet place at Fern Spring 1280 Comment
  UC176997  Plectritis brachystemon Joseph P. Tracy 1912-6-9 3656 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UC1018910  Plectritis brachystemon S. C. Dyal 1938-6-11 719 a Humboldt 11 mi w of Dinsmore (on McClellan Mountain); McClellan Mountain Comment
  UC1239576  Plectritis congesta Joseph P. Tracy 1922-4-30 6018 Humboldt near Willow Creek (Northern Coast Ranges, Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC76591  Pleuricospora fimbriolata Teresa Prendusi 1981-7-7 140 Humboldt Near Slate Creek Butte. 1158 Comment
  HSC75692  Pleuropogon refractus Bill Copeland 1980-6-26 303 Humboldt Near Murphy Meadow 914 Comment
  UCD90104  Pleuropogon refractus R. Tofsrud 1949-7-22 s.n. Humboldt on road between Scotia and Capetown. Comment
  RSA10119  Poa Joseph P. Tracy 1933-7-26 12911 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  HSC10626  Poa annua William J. Ferlatte 1963-5-8 39 Humboldt Near 11th and B Sts., Arcata. Comment
  UC180496  Poa annua Joseph P. Tracy 1914-5-14 4460 Humboldt Fort Seward; North Coast Ranges 121 Comment
  CAS-BOT-BC254715  Poa bolanderi Joseph P. Tracy 1930-7-16 8902 Humboldt South Fork Mountain: near McKay Camp 1676 Comment
  HSC10706  Poa douglasii R. E. Hafenfeld 1965-5-9 59 Humboldt 1/2 mi. S Ossagon Creek, near Gold Bluff Beach Rd. Comment
  UC1103177  Poa douglasii Joseph P. Tracy 1932-5-10 9943 Humboldt s point of the Cape Cape Mendocino Comment
  UC665695  Poa douglasii H. E. Parks May, 1934 4805 Humboldt Little River Lagoon Comment
  CAS-BOT-BC255850  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay 30 Comment
  UC525620  Poa kelloggii Joseph P. Tracy 1926-4-25 7415 Humboldt on Van Duzen River Grizzly Creek; North Coast Ranges 91 Comment
  BLMAR437  Poa macrantha Jennifer Anthony-Wheeler 2008-6-18 437 Humboldt Samoa/Malel Dunes 9 Comment
  UCD91539  Poa macrantha Linda M. Barker 1976-6-22 1625 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC73058  Poa pratensis M. A. Baker 1980-7-22 3110 Humboldt Near Grogan Hole. 1676 Comment
  RSA167307  Poa secunda Joseph P. Tracy 1951-6-26 19543 Humboldt 2 miles west of Snow Camp (same place from which Mr. Murphy's (Davis, U. C.) test plots of this species were taken.) At Beck's Place, Hydesville 1220 Comment
  SEINET200626 Image available Poa secunda Joseph P. Tracy 1932-7-17 10693 Humboldt Klamath Mountains Trinity Summit, Humboldt county, Head of Devils Hole 1829 Comment
  UC180485  Poa secunda subsp. secunda Joseph P. Tracy 1913-5-4 4044 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC33742  Poa secunda subsp. secunda Joseph Burtt Davy and Walter C. Blasdale 1899-6-23 5862 Humboldt Trinity Summit Comment
  UCD92045  Poa secunda subsp. secunda Joseph P. Tracy 1936-5-29 14822 Humboldt French Camp Ridge. 1066 Comment
  UC153996  Pogogyne serpylloides Joseph P. Tracy 1908-6-7 2621 Humboldt at Butter Valley on Mad River 152 Comment
  CAS-BOT-BC232886  Polemonium carneum Carl B. Wolf 1937-6-17 8881 Humboldt Big Lagoon, S side at W of Redwood Highway 6 Comment
  RSA141275  Polemonium carneum Joseph P. Tracy 1924-5-25 6682 Humboldt Big Lagoon 30 Comment
  HSC69751  Polycarpon tetraphyllum Thomas W. Nelson 1977-10-10 3756 Humboldt Jct. of Fairway Dr. and Lundbar Place, Eureka Comment
  UC183759  Polygala californica Joseph P. Tracy 1912-6-9 3667 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC64167  Polygala cornuta J. O. Sawyer, K. A. Sawyer 1979-6-24 3411 Humboldt Slopes alongside Aikens Creek. 366 Comment
  HSC41294  Polygala cornuta Brad Klipfel 1974-7-27 494 Humboldt Horse Mtn. Comment
  CAS-BOT-BC167575  Polygala cornuta var. cornuta Harley P. Chandler 1901-6-1 1502 Humboldt Klamath River 426 Comment
  SEINET1004839  Polygala cornuta var. cornuta Joseph P. Tracy 1926-1 7744 Humboldt Trinity River Valley, Near the south fork 183 Comment
  HSC12351  Polygonum aviculare Steve Dorei 1970-10-31 141 Humboldt Scotia Bluffs, N of railroad tracks Comment
  HSC101998  Polygonum bistortoides M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 897 Humboldt Patterson Meadows 1555 Comment
  HSC55078  Polygonum douglasii G. L. Clifton, Griswold 1979-7-31 11691 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC414465  Polygonum douglasii Joseph P. Tracy 1932-7-11 10399 Humboldt Trinity Summit. At Corral Prairie 1584 Comment
  HSC49614  Polygonum paronychia R. York 1979-5-18 296 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  SEINET2153798  Polygonum paronychia K. T. Harper 2002-1 2002 -2 Humboldt Trinidad Beach. Comment
  JEPS50609  Polygonum persicaria Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  HSC99496  Polygonum polygaloides subsp. kelloggii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 156 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 Comment
  UC205474  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1919-9-22 5269 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CDA2923  Polygonum polystachyum Thomas W. Nelson, M. Alcasas 1978-10-1 4555 Humboldt Highway 101 right-of-way just north of Humboldt State University exit. 0 Comment
  UC1222467  Polygonum sawatchense subsp. oblivium Joseph P. Tracy 1933-8-30 13023 Humboldt Grouse Mountain 1524 Comment
  HSC17537  Polygonum spergulariiforme Larry Berti 1968-10-20 Humboldt Along the Van Duzen River Comment
  UC709395  Polypodium Joseph P. Tracy 1941-3-26 16835 Humboldt at Willow Creek Willow Creek; Trinity River Valley 152 Comment
  HSC1107  Polypodium californicum C. O. Baker 1962-3-22 4 Humboldt 2 mi. S of Trinidad along old Hwy. 101 122 Comment
  CHSC94935  Polypodium scouleri K. Lang; J. Lang 2005-3-17 31 Humboldt Fern Canyon, near Orick. 15 Comment
  HSC1115  Polypodium scouleri C. O. Baker 1962-3-22 5 Humboldt 2 mi. S of Trinidad along old Hwy. 101 91 Comment
  SEINET3111376  Polypodium scouleri Unknown 1969-3-30 Humboldt Humboldt State University; Ecol Project site. Comment
  HSC100394  Polypodium vulgare Carl C. Marshall Mar 1886 155 Humboldt Trees etc., on Mad River. Comment
  CAS-BOT-BC233073  Polypogon interruptus Joseph P. Tracy 1927-7-16 8259 Humboldt Eureka 60 Comment
  HSC10832  Polypogon maritimus D. E. Anderson 1965-9-5 4077 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC11740  Polypogon monspeliensis Jerry Parker 1968-11-19 241 Humboldt Clam beach in stream bed of Strawberry Creek. Comment
  HSC1156  Polystichum imbricans D. E. Anderson 1963-9-21 2832 Humboldt 0.5 mi. E of Willow Creek Comment
  CHSC23905  Polystichum munitum Mark Johnson 1974-4-28 28 Humboldt Adjacent to Lady Bird Johnson Grove, 5 mi ne of Orick. 228 Comment
  SBBG296  Polystichum munitum H. and M. Dearing 1939-5-27 3454 Humboldt Bishop Pine Lodge, Patricks Pt Comment
  UC1440064  Polystichum munitum Danin & H. G. Baker 1960-9-2 658 c Humboldt ca. 2 mi n of Dyerville (High Rock (on W side of Eel River), along Ave. of the Giants) Comment
  HSC79145  Polystichum munitum C. J. Thomas 1984-9-25 120 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  UC249539  Populus trichocarpa Joseph P. Tracy 1922-10-8 6125 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  SEINET3837233  Potamogeton natans Unknownnown 1949-8-9 1229 Humboldt Marshy Pond 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley Comment
  HSC36293  Potamogeton nodosus James K. Griswold 1974-5-18 Humboldt Westend Rd., across from Humboldt Flakeboard Comment
  UC672877  Potamogeton pectinatus Joseph P. Tracy 1933-8-22 12983 Humboldt 1 mi w of Loleta (Mouth of Eel River); Eel River 3 Comment
  RSA244505  Potamogeton richardsonii Larry E. DeBuhr, Gary D. Wallace 1973-9-14 1215 Humboldt On east side of Highway 101. Comment
  BLMAR306  Potentilla anserina subsp. pacifica Jennifer Anthony-Wheeler 2002-7-1 306 Humboldt South Spit 6 Comment
  HSC90640  Potentilla anserina subsp. pacifica Gail Newton 1982-6-10 3605 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC90260  Potentilla anserina subsp. pacifica Jean Hanson 1980-5-24 71 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka. W end of island Comment
  SD42346  Potentilla anserina subsp. pacifica Carl B. Wolf 1937-9-12 9326 Humboldt Dry Lagoon State Park Comment
  UC1191497  Potentilla anserina subsp. pacifica Malcolm A. Nobs, S. Galen Smith 1949-8-3 1161 Humboldt 1 mi s Fields Landing; Eel River Valley, s of Fields Landing Comment
  UC1198685  Potentilla anserina subsp. pacifica Joseph P. Tracy 1933-6-6 12505 Humboldt Trinidad Trinidad (facing Ocean shore) 3 Comment
  UC774620  Potentilla anserina subsp. pacifica Carl B. Wolf 1937-9-12 9326 Humboldt Dry Lagoon State Park 4 Comment
  RSA46469  Potentilla gracilis Doris K. Kildale 1927-7-10 3721 Humboldt Gans Prairie, Bald Hills. Comment
  HSC101969  Potentilla gracilis var. fastigiata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 865 Humboldt Patterson Meadows 1566 Comment
  HSC75969  Potentilla gracilis var. fastigiata Overton, Butler 1979-8-2 12596 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 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
  HSC49800  Prosartes smithii R. York 1979-4-9 214 Humboldt Behind HSU campus, by trail Comment
  HSC59658  Prosartes smithii Marla J. Carollo 1979-4-10 4 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  HSC66222  Prosartes smithii M. Sacks 1977-4-9 15 Humboldt Flat 30 yds. W of Klamath River at junction of Cavenaugh Creek with the river, 3 mi. NE of Weichpec 152 Comment
  SEINET12050892  Prosartes smithii F. H. Utech 1977-1 77 -370 Humboldt ca 4.5 mi S of Del Norte County line on US 101 enroute to Crescent City Comment
  HSC31554  Prunella vulgaris Glenn McGourty 1974-5-11 44 Humboldt Along Maple Creek Rd. Comment
  HSC69855  Prunella vulgaris R. Kalal 1980-8-3 93 Humboldt Parking area of Elk Head Comment
  HSC56433  Prunella vulgaris subsp. lanceolata Griswold, Butler 1979-7-12 7145 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  JEPS62490  Prunella vulgaris var. lanceolata Joseph P. Tracy 1934-7-14 13403 Humboldt along Mad River near Blue Lake; along Mad River near Blue Lake 15 Comment
  SD93020  Prunella vulgaris var. lanceolata W. Bertsch 1953-7-30 220 Humboldt Highway 101 near Dyerville. 60 Comment
  UC12753  Prunus emarginata Harley P. Chandler June, 1901 1273 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1066 Comment
  UC154253  Prunus emarginata Joseph P. Tracy 1906-4-15 2402 Humboldt near Blue Lake (on Mad River); Northern Coast Ranges, Mad River 30 Comment
  UC492201  Prunus emarginata Joseph P. Tracy 1932-7-13 10527 Humboldt at Corral Prairie, Trintiy Summit, Klamath Mountains Corral Prairie; Klamath Mountains, Trintiy Summit 1524 Comment
  JEPS20480  Pseudognaphalium californicum Joseph P. Tracy 1937-7-11 15415 Humboldt vicinity of Garberville 121 Comment
  HSC5694  Pseudognaphalium ramosissimum Jerry Parker 1968-11-19 244 Humboldt Clam Beach, 1/4 mi. S of Strawberry Cr. Comment
  HSC89524  Pseudognaphalium stramineum M. Roantree 1985-6-11 90 Humboldt SW side of Trinidad Head Comment
  UC1222889  Pseudognaphalium thermale Joseph P. Tracy 1950-9-22 19376 Humboldt below 8 mi Orleans (near Slate Creek); Klamath River 121 Comment
  CAS-BOT-BC80109  Pseudotsuga menziesii Doris K. Kildale 1927-4-17 3092 Humboldt Briceland Bridge 1/2 mi. west of Garberville 114 Comment
  HSC76291  Pseudotsuga menziesii var. menziesii Denis Kearns 1981-7-23 391 Humboldt Near Whiteys Peak 732 Comment
  UC1222910  Psilocarphus oregonus Joseph P. Tracy 1946-5-30 17542 Humboldt 5 mi e Carlotta (by old Strong's District School House, Riverside Park nearby) 60 Comment
  HSC1160  Pteridium aquilinum var. pubescens Gene S. Van Horn 1962-5-25 27 Humboldt 200 ft. N of main house at 250 E 17th St., Arcata 61 Comment
  HSC1162  Pteridium aquilinum var. pubescens R. F. Good 1962-5-23 21 Humboldt Surrounding Arcata 60 Comment
  CAS-BOT-BC460504  Pterospora andromedea Doris Kildale Gillespie 1931-6-7 10662 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  CAS-BOT-BC460606  Pyrola aphylla Doris K. Kildale 1925-6-27 893 Humboldt Bear Buttes Comment
  JEPS58839  Pyrola aphylla Milo S. Baker 1923-7-31 168 Humboldt Booth's Run, North Coast Comment
  HSC74286  Pyrola dentata M. A. Baker 1980-7-11 2780 Humboldt Near Red Mtn. 1341 Comment
  HSC76595  Pyrola dentata Denis Kearns 1981-6-24 2 Humboldt Near Cedar Camp 1219 Comment
  CAS-BOT-BC466039  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Sumimt near Corral Prairie 1584 Comment
  SEINET200715  Pyrola picta Joseeph P. Tracy 1926-6-6 7556 Humboldt Near summit on road west from Hoopa to Bair's Comment
  UC1197584  Pyrola picta Joseph P. Tracy 1949-7-19 18377 Humboldt Grouse Mountain, at Friday Camp Grouse Mountain; , Friday Camp 1219 Comment
  UC314639  Pyrola picta Joseph P. Tracy 1926-6-6 7564 Humboldt Hoopa Mountain. On road west from Hoopa Valley 914 Comment
  UC403970  Quercus garryana Joseph P. Tracy 1924-10-12 6915 1/2 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1135607  Quercus garryana R. Stahelin 1933-8-20 Humboldt Liscomb Hill Eureka Quad. Comment
  UC667985  Quercus garryana var. breweri Joseph P. Tracy 1935-7-14 14091 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC105167  Quercus kelloggii Doris K. Kildale 1928-4-29 5972 Humboldt Horse Mountain Comment
  UCD165092  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 42.5 mi. from Garberville along Alderpoint Rd. 481 Comment
  UCD47220  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi. N.E. of Hoopa along trail to Trinity Summit from end of forest Rd. 1463 Comment
  HSC8296  Quercus vacciniifolia C. B. Wolf 1927-8-28 1173 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Rd. to Blue Lake Comment
  UC519303  Quercus vacciniifolia Joseph P. Tracy 1933-8-30 13009 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC667981  Quercus vacciniifolia Joseph P. Tracy 1936-8-7 15116 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UCR165264  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest) on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine 1463 Comment
  UC1196259  Ranunculus alismifolius Joseph P. Tracy 1912-7-31 3905 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  JEPS5885  Ranunculus bulbosus Joseph P. Tracy 1938-7-15 16080 Humboldt near Grizzly Bluff; Eel River Valley 15 Comment
  CAS-BOT-BC378853  Ranunculus californicus var. californicus Doris K. Kildale 1926-3-21 1585 Humboldt Kneeland Prairie 488 Comment
  UC668065  Ranunculus flammula Joseph P. Tracy 1937-7-17 15436 Humboldt Eureka; vernal pool 45 Comment
  POM256479  Ranunculus flammula var. ovalis Joseph P. Tracy 1937-7-17 15436 Humboldt Eureka. 46 Comment
  HSC18216  Ranunculus hebecarpus D. E. Anderson 1965-5-8 3628 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  HSC70330  Ranunculus occidentalis M. A. Baker 1980-6-8 1885 Humboldt Near Buck Flat. 1554 Comment
  JEPS55087  Ranunculus occidentalis Joseph P. Tracy 1918-5-28 4948 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1196219  Ranunculus occidentalis J. P. Tracy 1901-6-23 1182 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1196231  Ranunculus occidentalis Joseph P. Tracy 1934-4-8 13173 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  RSA523409  Ranunculus occidentalis G. H. True 1936-5-11 466 Humboldt E slope of Elk Ridge, 12 miles W of Miranda. 457 Comment
  HSC26783  Ranunculus occidentalis var. occidentalis Thomas W. Nelson 1971-5-31 451 Humboldt 915 Comment
  SEINET6908794  Ranunculus occidentalis var. occidentalis Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  UC1542885  Ranunculus parviflorus Harold E. Parks 1930-5-25 874 Humboldt Laribee Valley 762 Comment
  JEPS5881  Ranunculus repens Joseph P. Tracy 1938-5-8 15740 Humboldt 4 mi e Carlotta 30 Comment
  CDA3483  Ranunculus repens T. C. Fuller 1966-5-24 14709 Humboldt Arcata Bottoms, 0.75 mile west of Highway 101, 2 miles north of Arcata. 0 Comment
  JEPS60719  Ranunculus sardous Joseph P. Tracy 1921-7-31 5861 Humboldt Fortuna Northern Coast Ranges 30 Comment
  HSC74270  Ranunculus uncinatus M. A. Baker 1980-5-23 1377 Humboldt Near Buck Mtn. 1524 Comment
  UC1196271  Ranunculus uncinatus J. P. Tracy 1901-5-12 1076 Humboldt Immediate vicinity of Eureka 0 Comment
  UC598568  Rhamnus W. K. Fisher 1899-5-24 3 Humboldt Humboldt Bay Comment
  RSA601956  Rhamnus californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter cove. 61 Comment
  UC668156  Rhamnus californica Joseph P. Tracy 1933-9-3 13062 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS41951  Rhamnus californica subsp. occidentalis W. L. Jepson 1902-7-2 1977 Humboldt Three Creek to Willow Creek 762 Comment
  RSA13285  Rhamnus purshiana Doris K. Kildale 1929-5-25 8394 Humboldt Pines Pasture, Eureka. 61 Comment
  RSA7816  Rhamnus purshiana Doris K. Kildale 1928-7-1 5304 Humboldt French camp on Orick-Martins ferry road 610 Comment
  HSC12372  Rhododendron columbianum Steve Dorei 1970-10-14 100 Humboldt Big Lagoon Comment
  HSC27016  Rhododendron columbianum Brad Klipfel 1973-8-9 268 Humboldt Big Lagoon County Park Comment
  UCD20673  Rhododendron macrophyllum A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Hwy 101 reroute, May Creek Watershed +- 1000'. Comment
  UCD67631  Rhododendron macrophyllum D. Sanchez-Mata 1996-6-27 s.n. Humboldt Blue Lake. Mad River. 175 Comment
  UC1173683  Rhododendron occidentale Joseph P. Tracy 1939-7-9 16319 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  UC153960  Rhododendron occidentale Joseph P. Tracy 1909-10-10 3114 Humboldt 3 mi beyond French Camp, between Pine and Tuley French Camp; Northern Coast Ranges 609 Comment
  SEINET11996977  Rhododendron occidentale F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -296 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC69697  Rhododendron occidentale var. paludosum R. Kalal 1980-6-8 16 Humboldt Azalea State Reserve 52 Comment
  HSC74570  Rhododendron occidentale var. paludosum M. A. Baker 1980-5-17 1238 Humboldt Near Le Perron Peak 1066 Comment
  HSC100495  Ribes Carl C. Marshall Apr 1887 395 Humboldt Hoopa Valley. Comment
  CAS-BOT-BC433134  Ribes Doris K. Kildale; L. B. Kildale 1930-5-12 9562 Humboldt McClellan Hill near Bridgeville 609 Comment
  HSC57641  Ribes binominatum G. L. Clifton, Griswold 1979-7-25 10805 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC37423  Ribes bracteosum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 513 Humboldt Along Lost Man Creek. 38 Comment
  JEPS25431  Ribes inerme var. klamathense Joseph P. Tracy 1941-3-26 16813 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  HSC103197  Ribes lacustre Jade Paget-Seekins 2010-7-5 38 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  JEPS49357  Ribes lacustre W. L. Jepson 1902-7-15 2030 Humboldt Mud Spring to Trinity Summit 1524 Comment
  HSC97310  Ribes laxiflorum M. Mesler 2007-5-23 744 Humboldt Near Trinidad, trail from Mill Creek to Elk Head, along the creek near the beach. 23 Comment
  SBBG26907  Ribes laxiflorum H. E. and S. T. Parks 1937-6-4 24004 Humboldt Prairie Crk at Valley Green Comment
  CAS-BOT-BC173359  Ribes lobbii Peter H. Raven; R. Snow 1958-7-20 11632 Humboldt 12.8 miles south-west of United States 299 on Friday Ridge Road to Grouse Mountain, 0.2 miles north-east of Titlow Hill road junction Comment
  CAS-BOT-BC173364  Ribes lobbii Joseph P. Tracy 1933-7-16 12783 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  HSC103205  Ribes lobbii Jade Paget-Seekins 2010-6-30 33 Humboldt Grouse Mountain on Forest Route 1 at the fork with Grouse Mountain Road. 1578 Comment
  HSC65621  Ribes lobbii J. P. Smith, J. O. Sawyer 1973-5-12 6688 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  UC667058  Ribes lobbii Joseph P. Tracy 1935-5-12 13801 Humboldt summit between North Fork Mad River and Redwood Creek (on Trinity Highway) 670 Comment
  UCD102249  Ribes lobbii Gordon Leppig 1998-6-1 866 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. @ Ammon Ridge Rd. 1524 Comment
  CAS-BOT-BC173366  Ribes lobbii Volney Rattan 1882-6-1 s.n. Humboldt Coast Mts. North of San Francisco Bay Comment
  HSC20376  Ribes menziesii Greg Bos 1965-5-2 243 Humboldt 7 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  UC154119  Ribes menziesii J. P. Tracy 1904-7-31 2130 Humboldt immediate vicinity Eureka 0 Comment
  RSA0021774  Ribes menziesii L. R. Abrams, R. C. Bacigalupi 1922-6-25 8289 Humboldt Bluffs north of Big Lagoon near Orick. Comment
  POM274669  Ribes menziesii var. menziesii H. E. Parks 1933-04 4402 Humboldt McNeils Creek, vicinity of Trinidad. Comment
  HSC71034  Ribes roezlii Thomas W. Nelson 1977-4-20 3326 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  UC1193214  Ribes roezlii P. Zinke 1950-8-4 153 Humboldt 2 mi w Harris Post Office (outside national forest); Quad. 29D3 853 Comment
  CAS-BOT-BC212521  Ribes sanguineum Harley P. Chandler 1901-6-1 1287 Humboldt Hupa Indian Reservation 1097 Comment
  HSC41269  Ribes sanguineum Brad Klipfel 1974-6-25 411 Humboldt Horse Mtn. Comment
  UCD13168  Ribes sanguineum N. L. Leman 1973-5-19 148 Humboldt Humboldt CO. State Highway 299, 14 miles west of Willow Creek. On roadside about .7 miles before Titlow Hill Rd. turnoff. Comment
  CAS-BOT-BC144681  Ribes sanguineum var. glutinosum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC144688  Ribes sanguineum var. glutinosum Joseph Andorfer Ewan 1937-7-1 10444 Humboldt on river bench. Stephan Grove on Eel River, n. of Garberville Comment
  CAS-BOT-BC144692  Ribes sanguineum var. glutinosum Carl B. Wolf 1927-8-29 1191 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge-- Mt. Glen Comment
  UC921844  Ribes sanguineum var. glutinosum C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  UCSB15627  Ribes sanguineum var. glutinosum Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa; on peninsula; on western side of Humboldt Bay Comment
  UC195067  Rigiopappus leptocladus Joseph P. Tracy 1916-6-19 4738 Humboldt near Alder Point; Northern Coast Ranges, Cahto Creek 152 Comment
  HSC13750  Romanzoffia californica Doris K. Kildale 1926-3-21 1574 Humboldt Kneeland Prairie Comment
  UC198651  Rorippa curvisiliqua Joseph P. Tracy 1916-5-31 4693 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, along Eel River 60 Comment
  UC1199222  Rorippa nasturtium-aquaticum Joseph P. Tracy 1927-7-17 8280 Humboldt on lower western foothills Chaparral Mountain (Three Cabins); Northern Coast Ranges, western foothills Chaparral Mountain 457 Comment
  UC1199036  Rosa gymnocarpa Joseph P. Tracy 1908-6 2730 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  CAS-BOT-BC146842  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1/8 mile from Rohnerville on the road to Fortuna 30 Comment
  UC467670  Rosa nutkana subsp. macdougalii Joseph Burtt Davy and Walter C. Blasdale 1899-5 5492 Humboldt on river near Camp Grant; Eel River Comment
  JEPS45642  Rosa nutkana var. nutkana Joseph P. Tracy 1923-6-22 6345 Humboldt Angels Ranch Bald Mt.; Northern Coast Ranges, Bald Mt. 457 Comment
  UC1199022  Rosa nutkana var. nutkana J. P. Tracy 1901-6-23 1163 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC148340  Rosa pisocarpa Alice Eastwood; John Thomas Howell 1937-6-23 4763 Humboldt Dinsmore's Comment
  CAS-BOT-BC146878  Rosa rubiginosa Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River near Boyce Creek, Orleans region Comment
  CAS-BOT-BC146885  Rosa rubiginosa Carl B. Wolf 1927-8-30 1229 Humboldt 2 mi. s. of Petrolia on Matole River near point where road crosses river Comment
  RSA86869  Rubus laciniatus F. W. Peirson 1923-7-10 3755 Humboldt Garberville. Comment
Read comments
Apr 16 2013
  HSC73352  Rubus leucodermis M. A. Baker 1980-6-7 1861 Humboldt Near Ammon Creek 732 Comment
  JEPS47690  Rubus leucodermis Lincoln Constance 1934-5-24 635 Humboldt bordering lower Look Prairie on e side , Bull Creek Region (South Fork Eel River) 121 Comment
  UC666865  Rubus leucodermis Joseph P. Tracy 1937-7-24 15532 Humboldt in fir woods near Grizzly Camp (head of Little Hors Linto Creek); Trinity Summit, head of Little Hors Linto Creek 1371 Comment
  HSC22040  Rubus parviflorus B. D. Rogers, D. E. Anderson 1965-5-1 514 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  JEPS47711  Rubus parviflorus Lincoln Constance 1934-5-31 756 Humboldt Bull Creek Flat South Fork Eel River, Bull Creek Region (along Bull Creek, from w boundary of Park to Grasshpper Peak (Squaw Creek) rd., South Fork Eel River) Comment
  NY1043364  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  UCSB30625  Rubus parviflorus Edwards, David 1974-8-14 Humboldt S. side of dirt road, ca 1/2 - 3/4 mi in on dirt road from jct. with Fickle Hill Rd, ca 1/4 mi E of junction of Fickle Hill Rd and Park Av. Arcata Comment
  SEINET11910601  Rubus spectabilis F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -178 Humboldt ca 8 mi N of Trinidad on US 101 near Patricks Point State Park 6 Comment
  HSC100639  Rubus ursinus Carl C. Marshall Mar 1886 138 Humboldt Everywhere. Comment
  HSC55314  Rubus ursinus Griswold, Butler 1979-7-11 7024 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  LA208254  Rubus ursinus H. Lewis; 1940-7-3 sn Humboldt Dry lagoon Beach, State Park Comment
  UC1128669  Rubus ursinus R. Stahelin 1933-5-15 19521 Humboldt Freshwater Eureka Quad. Comment
  UC1199050  Rubus ursinus Joseph P. Tracy 1939-4-16 16210 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  UCD17617  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 047 Humboldt California. Humboldt County: 6.6 miles north of Ettersburg on road to Honeydew. Comment
  UCD17817  Rubus ursinus H. Olmo 8-10 May 1962 62 40 Humboldt California. Humboldt County: 1.4 miles east of Dinsmore. Comment
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Jul 3 2014
  POM271074  Rubus vitifolius Lyman D. Benson 1929-7-15 1814 Humboldt Clam Beach. Trinidad. Comment
  RSA89568  Rubus vitifolius Philip A. Munz 1954-7-23 19865 Humboldt 5 miles SE of Carlotta Comment
  HSC51775  Rumex acetosella Overton, Butler 1979-7-24 9644 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC17583  Rumex acetosella J. E. Lankila 1962-5-14 28 Humboldt W bank of river at Fernbridge Comment
  HSC23129  Rumex acetosella Norman Dennis 1965-6-19 134 Humboldt 0.25 mi S and 1.0 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  JEPS39909  Rumex conglomeratus W. L. Jepson 1936-8-17 17928 Humboldt 2.5 mi s Fields Landing Comment
  UC1101197  Rumex conglomeratus Malcolm A. Nobs, S. Galen Smith 1949-8-9 1236 Humboldt pond on s side of the town of Blue Lake town of Blue Lake Comment
  CAS-BOT-BC421592  Rumex crispus Doris K. Kildale 1926-5-9 1997 Humboldt Kneeland Prairie 762 Comment
  UC1225804  Rumex crispus Joseph P. Tracy 1946-7-7 17609 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC55521  Rumex obtusifolius Joseph Burtt Davy 1899-7-30 6169 B Humboldt near Ferndale Comment
  SEINET11946618  Rumex obtusifolius C. S. Kaut 2000-1 6 Humboldt Trinidad Comment
  UC7023  Rumex pulcher H. N. Bolander Jun 1867 6568 Humboldt Shelter Cove Comment
  CAS-BOT-BC434097  Rumex transitorius Carl B. Wolf 1927-8-28 1182 Humboldt Salt Marsh, Eureka Bay, on the road to Arcata Comment
  UC169305  Rupertia physodes Joseph P. Tracy 1912-7-31 3949 Humboldt open woods near summit of Buck Mountain; Northern Coast Ranges Comment
  HSC59504  Ruppia maritima M. A. Erickson 1979-5-23 305 Humboldt Arcata, creek adjacent to an abandoned logging pond at the S end of H St., Arcata Comment
  UC1100022  Ruppia maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1182 Humboldt ca 4 mi s Eureka (on Highway 101, near mouth of Elk River) Comment
  HSC89899  Salicornia depressa Leonel Arguello 1989-9-9 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  CAS-BOT-BC132706  Salix A. T. Whittemore 1980-3-15 80 -003 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  JEPS12968  Salix exigua Joseph P. Tracy 1931-9-7 9642 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  SBBG58914  Salix exigua var. hindsiana H. E. Parks, J. P. Tracy 1931-5-17 971 Humboldt mouth of Willow Crk at Trinity River Comment
  UC469443  Salix exigua var. hindsiana Joseph P. Tracy 1931-9-7 9642 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC107715  Salix hookeriana Doris K. Kildale 1926-6-29 2238 Humboldt Mouth of Mad River Comment
  CAS-BOT-BC107734  Salix hookeriana Harold E. Parks; Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon, Trinidad Comment
  CAS-BOT-BC107747  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1226 Humboldt In pine barrens near the coast, 1 mile north of Samoa Comment
  CAS-BOT-BC107761  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1221 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CAS-BOT-BC107768  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1223 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CAS-BOT-BC107775  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-12 1246 Humboldt Gravelly floodplain of Van Dezen River at Blue Slide 91 Comment
  CHSC9656  Salix hookeriana E. L. Smith 1971-8-18 1026 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  CHSC96697  Salix hookeriana Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC40380  Salix hookeriana Linda M. Barker 1976-3-22 1341 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  JEPS12963  Salix hookeriana Joseph P. Tracy 1931-9-20 9685 Humboldt Trinidad Northern Coast Region 60 Comment
  JEPS12965  Salix hookeriana Joseph P. Tracy 1931-8-23 9617 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  JEPS13088  Salix hookeriana Joseph P. Tracy 1937-8-12 15658 Humboldt Snow Camp 1402 Comment
  JEPS13090  Salix hookeriana Joseph P. Tracy 1936-10-24 15202 Humboldt Fortuna 15 Comment
  RSA342501  Salix hookeriana Robert F. Thorne, Percy C. Everett 1965-8-7 35230 -c Humboldt Big Lagoon. 3 Comment
  UC1196545  Salix hookeriana Joseph P. Tracy 1932-5-10 9951 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC1196546  Salix hookeriana Joseph P. Tracy 1926-3-14 7390 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC1225922  Salix hookeriana Joseph P. Tracy 1947-7-2 17758 Humboldt 6 mi s.e. Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC303033  Salix hookeriana Joseph P. Tracy 1926-6-10 7345 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC481345  Salix hookeriana Harold E. Parks 1931-5-12 952 Humboldt Samoa Humboldt Bay, Samoa Comment
  UC481350  Salix hookeriana Harold E. Parks 1931-5-12 954 Humboldt Samoa Humboldt Bay Comment
  UC481392  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Fortuna Eel River (banks of river) 10 Comment
  UC492338  Salix hookeriana Harold E. and Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon Trinidad (<same place> from which No. 01000...was taken in 1931) Comment
  UC492344  Salix hookeriana Harold E. and Susan T. Parks 1932-4-10 1103 a Humboldt Little River Lagoon Trinidad Comment
  UC506347  Salix hookeriana Joseph P. Tracy 1933-3-19 10924 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC512098  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1211 Humboldt 1 mi n Samoa (near coast) Comment
  UC709427  Salix hookeriana Joseph P. Tracy 1941-3-9 16800 Humboldt along Eel R. Camp Grant 48 Comment
  UCD111025  Salix hookeriana Carleton R. Ball; Harold E. Parks and Joseph P. Tracey 1932-5-13 01251 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road. Comment
  CDA39526  Salix hookeriana Gordon Leppig 2005-4-8 2203 Humboldt Humboldt Bay Dunes and Wetlands; North Spit, south end of Peninsula Drive. Comment
  SBBG59090  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers, S fork of Eel River Comment
  UC469475  Salix laevigata Joseph P. Tracy 1931-10-18 9737 Humboldt on Eel R. Camp Grant; Northern Coast Ranges, Eel R., Camp Grant 60 Comment
  UC906710  Salix laevigata Harold E. Parks and Joseph P. Tracy 1942-5-16 11568 Humboldt vicinity of Garberville Garberville 152 Comment
  UC490517  Salix laevigata var. congesta Joseph P. Tracy 1932-5-22 10122 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC1196584  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1939-8-5 16394 Humboldt along Van Duzen R. at Dinsmore's; Van Duzen R. 737 Comment
  UC504058  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 2 Humboldt around Eureka Eureka Comment
  UC518900  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 3 Humboldt around Eureka Eureka Comment
  CAS-BOT-BC128190  Salix lasiandra var. lasiandra Harold E. Parks 1931-5-14 0959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC128199  Salix lasiandra var. lasiandra Doris K. Kildale 1927-3-27 3000 Humboldt Fernbridge - Eel River 10 Comment
  HSC96574  Salix lasiandra var. lasiandra Gordon Leppig 2003-2-20 1807 Humboldt Eureka Slough, Cooper Gulch 5 Comment
  SD1005  Salix lasiandra var. lasiandra Harold E. Parks 1931-5-14 959 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UCD111578  Salix lasiandra var. lasiandra Joseph P. Tracy 1947-8-24 17896 Humboldt Trinity Summit, meadow at Box Camp. 1463 Comment
  CAS-BOT-BC107604  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-12 1236 Humboldt Gravelly floodplain of the Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107606  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-17 1324 Humboldt On west slpe of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  CAS-BOT-BC107624  Salix lasiolepis Joseph P. Tracy 1932-4-24 9803 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  CAS-BOT-BC107649  Salix lasiolepis Joseph P. Tracy 1933-5-14 12184 Humboldt Berry's Mt. on Trinity Highway 762 Comment
  JEPS12966  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Redwood Creek Berry's; Northern Coast Ranges 274 Comment
  UC469407  Salix lasiolepis Joseph P. Tracy 1927-3-27 7868 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC469427  Salix lasiolepis Joseph P. Tracy 1931-9-7 9628 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC506390  Salix lasiolepis Joseph P. Tracy 1932-10-8 10867 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 Comment
  UC519347  Salix lasiolepis Joseph P. Tracy 1933-10-15 13092 Humboldt along S. Fork Eel R. near Miranda; North Coast Ranges, S. Fork Eel R. 91 Comment
  UCSB10872  Salix lasiolepis Parks, Harold; Parks, Susan 1931-8-15 Humboldt Blue Slide, Van Duzen River 100 Comment
  UCSB11963  Salix lasiolepis Ball, Carleton; Parks, Harold; Tracy, Joseph 1932-5-13 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  RSA178543  Salix lasiolepis var. sandbergii Joseph P. Tracy 1950-4-20 18623 Humboldt Van Duzen River. 10 miles SE of Dinsmore's. About 4 miles SE of Kuntz. Comment
  CHSC9553  Salix lucida subsp. lasiandra E. L. Smith 1971-4-6 923 Humboldt Ca. 3 mi s of Scotia, on Hwy 101. 60 Comment
  CAS-BOT-BC125612  Salix melanopsis W. R. Dudley 1899-6-21 s.n. Humboldt At the junction, the south and north forks of Eel River Comment
  LA208879  Salix melanopsis Mrs. H. P. Bracelin; 1931-5-2 283 Humboldt E of Redwood Hwy.; 6 km. S of Alton 20.0 Comment
  LA208932  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 967 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  SBBG28830  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 967 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  SBBG57954  Salix melanopsis H. E. Parks 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  UC469452  Salix melanopsis Joseph P. Tracy 1931-9-7 9641 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481288 Image available Salix melanopsis Harold E. Parks 1931-5-14 962 Humboldt between Alton and Carlotta; Van Duzen River; Van Duzen River, Humboldt Co. 15 Comment
  UC481341  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  CAS-BOT-BC129134  Salix scouleriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1219 Humboldt 1 mile north of Samoa, approximately sea level. Comment
  CAS-BOT-BC129161  Salix scouleriana Joseph P. Tracy 1936-2-2 14766 Humboldt Vicinity of Carlotta 30 Comment
  CAS-BOT-BC129168  Salix scouleriana Joseph P. Tracy 1932-7-13 10507 Humboldt Open ground at Corral Prairie 1524 Comment
  CAS-BOT-BC129175  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC37878  Salix scouleriana Thomas W. Nelson 1976-3-22 2281 Humboldt Cooper's Gulch near Franklin Elementary School Comment
  SBBG57977  Salix scouleriana H. E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC128994  Salix sitchensis Joseph P. Tracy 1934-3-25 13168 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC38182  Salix sitchensis Thomas W. Nelson 1976-11-5 3297 Humboldt Along S fork of Martins Slough, upstream from Eureka Muni Golf Course Comment
  HSC90192  Salix sitchensis Jean Hanson 1980-3-8 6 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UC302154  Salix sitchensis Joseph P. Tracy 1926-2-21 7364 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC490490  Salix sitchensis Joseph P. Tracy 1932-8-27 10745 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  RSA53827  Salsola tragus H. M. Pollard s.n. Humboldt Near Orleans. Comment
  RSA168918  Salsola tragus Joseph P. Tracy 1950-8-20 19323 Humboldt Klamath River, near Slate Creek; Below Orleans 8 miles. 122 Comment
  HSC41198  Sambucus nigra subsp. caerulea Thomas W. Nelson, Jane P. Nelson 1977-7-4 3590 Humboldt Along road N of Alder Springs. 1524 Comment
  HSC44536  Sambucus nigra subsp. caerulea Brad Klipfel 1973-7-1 144 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57090  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-24 9804 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC75561  Sambucus racemosa var. racemosa N. D. Dennis 1965-4-2 3 Humboldt Corner of Del Norte and L St., Eureka. Comment
  HSC91606  Sambucus racemosa var. racemosa E. Mackey 1987-3-1 Humboldt Patrick's Point State Park, Palmer's Point. Comment
  UC484082  Sambucus racemosa var. racemosa C. B. Wolf 1930-10-26 1765 Humboldt along coastal bluffs 1 mi s Trinidad 91 Comment
  RSA183619  Sanguisorba minor D. E. Anderson 1965-5-1 3577 Humboldt Along Trinity River at Hoope. Comment
  UC154106  Sanicula arctopoides J. P. Tracy 1904-4-24 2021 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  UC1197113  Sanicula arctopoides Joseph P. Tracy 1904-4-24 4028 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  UC1197115  Sanicula arctopoides Joseph P. Tracy 1933-5-9 12164 Humboldt vicinity of Trinidad (Northern Coast Region); Northern Coast Region 60 Comment
  HSC21629  Sanicula bipinnatifida D. E. Anderson, N. J. Cole 1965-4-13 13 Humboldt 2 1/2 mi. SE of Maple Creek Rd. junction with Bald Hills Road, SE of Korbel Comment
  HSC77963  Sanicula crassicaulis L. P. Janeway, Paul Wilson 1984-5-7 762 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  HSC91934  Sanicula crassicaulis E. Mackey 1986-5-13 Humboldt Patrick's Point State Park, edge of forest at Palmer's Point Comment
  HSC102543  Sanicula graveolens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1529 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC99074  Sanicula graveolens Cara Witte 2008-6-11 705 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1438 Comment
  HSC71008  Sanicula tuberosa J. M. DiTomaso 1981-5-15 2009 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  UC562449  Sarcodes sanguinea Joseph P. Tracy Jul 16-19 1930 8943 Humboldt South Fork Mountain, near McKay Camp 1676 Comment
  UC556333  Satureja douglasii Mrs. Emanuel Fritz 1935-1 Humboldt between Miranda and Dyerville (along Redwood Highway) Comment
  HSC102071  Saxifraga aprica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 973 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  JEPS47546  Saxifraga californica Joseph P. Tracy 1927-4-10 7896 Humboldt near South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC492225  Saxifraga californica Joseph P. Tracy 1927-3-27 7851 Humboldt near the South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  JEPS79979  Saxifraga mertensiana Joseph P. Tracy 1927-4-2 7884 Humboldt South Fork Eel River between Miranda and Redway; North Coast Ranges, South Fork Eel River 91 Comment
  RSA24203  Saxifraga mertensiana Carl B. Wolf 1941-3-2 9991 Humboldt N Coast Range. 2 miles S of Honeydew along Honeydew Creek. 152 Comment
  JEPS47545  Saxifraga oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Trinity Summit, at Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  HSC82129  Saxifragopsis fragarioides D. K. Imper 1985-6-19 Humboldt Above and Below FS road 10N01, just NW of Whitey's Peak 1372 Comment
  UCD65995  Schedonorus arundinaceus Linda M. Barker 1976-6-1 1566 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET3991728  Schoenolirion Unknown 1926-6-20 Humboldt Horse Mtn. Comment
  CAS-BOT-BC111334  Schoenoplectus acutus var. occidentalis LeRoy Abrams; R. C. Bacigalupi 1922-6-25 8272 Humboldt Big Lagoon south of Orick Comment
  JEPS95079  Schoenoplectus pungens var. badius Vernon Oswald and Lowell Ahart 1997-9-4 8848 Humboldt Big Lagoon County Park, at sw edge of Big Lagoon, entering lagoon at boat ramp Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  UC1541346  Scirpus acutus var. occidentalis Harold E. Parks Aug 1934 5156 a Humboldt Dry Lagoon Comment
  UC668018  Scirpus acutus var. occidentalis Joseph P. Tracy 1934-7-20 13472 Humboldt Big Lagoon 3 Comment
  UC1103646  Scirpus congdonii Joseph P. Tracy 1937-8-12 15638 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC110928  Scirpus microcarpus Robert F. Thorne; P. Everett 1965-8-9 35320 Humboldt Clam Beach County Park along highway in shallow water of ditch. 3 Comment
  SEINET12058059  Scoliopus bigelovii F. H. Utech 1988-3-4 88 -026 Humboldt 12.7 mi E on CA 36 from jct US 101 & Van Duzen River, Grizzly Creek Redwoods, O.R. Cheatam Grove 90 Comment
  UC175808  Scoliopus bigelovii Joseph P. Tracy 1913-6-20 4223 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Valley of Van Duzen R., Dinsmore's Ranch 762 Comment
  HSC77906  Scrophularia californica L. P. Janeway, Paul Wilson 1984-5-7 759 Humboldt On the N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 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
  UC1011941  Scrophularia californica F. W. Pennell and J. P. Tracy 1940-7-6 26081 b Humboldt w Lolita (Table Bluff) 1 Comment
  UC582594  Scrophularia californica Joseph P. Tracy 1937-7-30 15565 Humboldt 6 mi se Arcata (Fickle Hill) 609 Comment
  CDA41981  Scrophularia californica T. C. Fuller 1961-9-28 7058 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC14396  Scutellaria antirrhinoides H. E. Parks, J. P. Tracy 1934-6-27 11061 Humboldt Grouse Mtn. 1433 Comment
  HSC97304  Scutellaria antirrhinoides Bryan Atkinson, Jenny Lynn Hutchinson 2007-6-11 4 Humboldt Near Grouse Mtn., 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1341 Comment
  UC1239708  Scutellaria antirrhinoides Joseph P. Tracy 1935-6-23 13966 Humboldt French Camp Ridge 1066 Comment
  UC1713620  Scutellaria californica Joseph P. Tracy 1937-7-19 15453 Humboldt nw slope of Buck Mountain 914 Comment
  UC577321  Scutellaria californica Joseph P. Tracy 1936-6-27 15004 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges, , South Fork Eel River 121 Comment
  SEINET12218663  Sedum divergens J. P. Tracy 1950-1 19294 Humboldt Croghan Hole on Trinity Summit 1676 Comment
  HSC98588  Sedum radiatum Cara Witte 2008-7-16 916 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  JEPS25686  Sedum spathulifolium P. C. Hutchison 1961-5-22 2012 Humboldt 1.1 mi s Berry Summit (on hiway US 299, on the road to Horse Mountain); s of Berry Summit, road to Horse Mountain Comment
  JEPS25690  Sedum spathulifolium P. C. Hutchison 1961-5-22 2020 Humboldt 5.4 mi ne of Klamath River bridge at Weitchpec (10 mi sw of Orleans, Hiway US299, w side of Klamath River on steep rocks above road); w side Klamath River, ne Weitchpec, sw Orleans Comment
  JEPS48059  Sedum spathulifolium Lincoln Constance 1934-6-1 767 Humboldt Bull Cr. Road between Dyerville Bridge and Bull Cr. flat grove (mouth Bull Cr.) (Mouth Bull Cr, South Fork Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  RSA0074767  Sedum spathulifolium I. L. Wiggins 1932-6-18 5878 Humboldt Mouth of Little River. Comment
  HSC44633  Sedum spathulifolium var. spathulifolium M. Alcasas 1978-6-3 123 Humboldt Titlow Hill Rd., 0.5 mi. from Hwy. 299 1037 Comment
  HSC63239  Sedum spathulifolium var. spathulifolium M. A. Baker 1979-6-7 801 Humboldt Hwy. 299, 3 km N of Berry Summit Comment
  HSC95768  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway 49 Comment
  HSC89451  Selaginella oregana P. A. Daly 1986-3-12 85 Humboldt Trinidad Head 61 Comment
  UC1199500  Senecio glomeratus Joseph P. Tracy 1936-8-23 15167 Humboldt near Carlotta 30 Comment
  HSC26637  Senecio integerrimus Thomas W. Nelson 1971-5-31 458 Humboldt 915 Comment
  HSC81775  Senecio integerrimus var. major Thomas W. Nelson, James Nelson 1980-6-10 5406 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  UC427870  Senecio integerrimus var. major H. E. Parks and J. P. Tracy 1930-5-25 879 Humboldt Laribee Valley Comment
  UC1223155  Senecio integerrimus var. major Joseph P. Tracy 1950-5-6 18638 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1223019  Senecio minimus Joseph P. Tracy 1941-8-17 16991 Humboldt where logging of Douglas Fir is in progress, near HIgh Prairie; Bald Mountain Comment
  UC1199235  Senecio sylvaticus Joseph P. Tracy 1934-8-31 13652 Humboldt along road through woods Kneeland Prairie Kneeland Prairie 762 Comment
  UC1199236  Senecio sylvaticus Harold E. Parks and Joseph P. Tracy 1941-7-5 11491 Humboldt in woods near Coon Creek; Trinity River 152 Comment
Read comments
Jun 26 2012
  UC1223153  Senecio sylvaticus Joseph P. Tracy 1941-8-17 16992 Humboldt near High Prairie (Bald Mountain); Bald Mountain Comment
  HSC95584  Senecio vulgaris Andrea Pickart 2002-3-14 4 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  CAS-BOT-BC85841  Sequoia sempervirens Joseph P. Tracy 1926-2-21 7355 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC98210  Sequoia sempervirens Gordon Leppig 1999-7-9 1189 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  JEPS48271  Sequoia sempervirens Joseph P. Tracy 1926-2-21 7355 Humboldt Blue Slide on Van Duzen River 91 Comment
  POM181978  Sequoia sempervirens J. G. Lemmon 1901-09 s.n. Humboldt Eureka Comment
  UC544763 Image available Sequoia sempervirens E. Fritz Apr 1934 8012 Humboldt Richardson Grove Comment
  SEINET11737924  Sequoia sempervirens K. S. Erdman 1970-1 4791 Humboldt Redwood National Park near Holter Ridge entrance along the Bald Hills Road SE of Orick Comment
  SEINET5716899 Image available Sequoia sempervirens Ronald J. Mastrogiuseppe 1965-1 s.n. Humboldt Humboldt Redwoods State Park; near the Founders Tree.; Humboldt Redwoods State Park Comment
  UCD92603  Setaria parviflora P. Haggard; G. Leppig 1998-2-4 s.n. Humboldt east of Arcata on North Bank Rd. Above Mad River immediately east of Azalea Reserve. Comment
  CAS-BOT-BC205570  Sidalcea malachroides A. M. Vollmer; L. Beane 1951-6-11 136 Humboldt Yager Creek Road, on way to Carlotta Comment
  HSC96274  Sidalcea malachroides Gordon Leppig 2002-5-22 1710 Humboldt Van Duzen River Watershed, Redwood House Rd. Simpson Timber Co. 540 Comment
  RSA33405  Sidalcea malachroides Doris K. Kildale 1927-7-2 s.n. Humboldt Lord (?) Ellis Road, near Korbel Comment
  UC668137  Sidalcea malachroides Joseph P. Tracy 1938-6-15 15938 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  HSC38096  Sidalcea malviflora subsp. nana Thomas W. Nelson, James Nelson 1976-5-30 2617 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC81675  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane Nelson 1980-7-13 6057 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  RSA168955  Sidalcea malviflora subsp. patula Joseph P. Tracy 1950-6-8 18734 Humboldt Bear River Ridge, 7 miles south of Ferndale. 610 Comment
  CAS-BOT-BC213157  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-7-16 15432 Humboldt Dow's Prairie 60 Comment
  HSC46167  Sidalcea oregana subsp. eximia J. P. Smith, Steve Selva 1970-6-30 4122 Humboldt Comment
  UC668133  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-8-12 15653 Humboldt Snow Camp 1402 Comment
  UC502940  Sidalcea oregana subsp. spicata Joseph P. Tracy 1932-7-10 10382 Humboldt Corral Prairie Klamath Mountains, , Corral Prairie (Trinity Summit) 1524 Comment
  HSC103725  Silene bolanderi M. R. Mesler, C. Wilson 2010-6-18 825 Humboldt Along Hwy 36 near pmm 32.53 771 Comment
  HSC103772  Silene bolanderi M. R. Mesler 2014-6-4 1634 Humboldt Burr Valley Road near Dinsmore 1012 Comment
  JEPS23249  Silene californica Joseph P. Tracy 1938-7-7 16040 Humboldt Grouse Mountain 1524 Comment
  SD42480  Silene californica Carl B. Wolf 1937-6-18 8890 Humboldt Table Bluff, between Humboldt Bay and Eel River. 29 Comment
  JEPS23252  Silene campanulata subsp. campanulata Joseph P. Tracy 1937-7-29 15590 Humboldt w slope near top at Hyampom Trail , Hyampom Trail (South Fork Mountain) 1676 Comment
  HSC102130  Silene campanulata subsp. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1034 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC98544  Silene campanulata subsp. glandulosa Cara Witte 2008-6-11 710 Humboldt National Forest Road 5N10. 2 miles south of intersection with Forest Service Road 5N41. 1286 Comment
  RSA21442  Silene campanulata subsp. glandulosa C. B. Wolf 1937-8-12 9206 Humboldt North Coast Range, South Fork Mountain, 0.6 miles S of Blake Lookout. 1677 Comment
  OBI22895  Silene gallica H. E. & S. T. Parks, S. T. Parks May1937 5938 Humboldt Trinidad, Spruce Cove 0 Comment
  HSC95548  Silene gallica Andrea Pickart 2002-5-20 103 Humboldt Manila Dunes, near Manila Community Services District treatment area 15 Comment
  HSC102545  Silene grayi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1535 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC659353  Silene hookeri Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2612 Humboldt near Eureka; McClellan Mountain, near Eureka 822 Comment
  CAS-BOT-BC181223  Silene hookeri subsp. bolanderi Volney Rattan 1883-1-1 s.n. Humboldt Mad River Comment
  CAS-BOT-BC389049  Silene laciniata subsp. californica Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC4219  Silene lemmonii J. P. Tracy 1932-7-12 10452 Humboldt Trinity Summit, near Corral Prairie 1585 Comment
  HSC69693  Silybum marianum R. Kalal 1980-6-8 12 Humboldt Arcata, along 7th St., 0.1 mi. E of Hwy. 101 12 Comment
  HSC44756  Sisyrinchium bellum Maralyn O'Meara 1972-6-8 83 Humboldt Along Bald Hills Rd. 16.4 mi. E of junction with Hwy. 101 Comment
  CHSC19509  Sisyrinchium californicum Norman Dennis 1965-6-3 142 Humboldt Sphagnum bog at Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  RSA311326  Sisyrinchium californicum Robert F. Thorne 1957-9-3 19018 Humboldt Patricks Point State Park. Comment
  HSC69581  Solanum americanum R. Kalal 1980-6-8 15 Humboldt E of Clam Beach along slough 18 Comment
  RSA46494  Solanum americanum Doris K. Kildale 1926-2-7 1496 Humboldt Big Lagoon. Comment
  HSC12029  Solanum americanum D. Santana 1970-11-2 94 Humboldt 3 mi. S of Trinidad on old Hwy. 1 Comment
  UC750870  Solanum furcatum E. F. Paddock 1947-7-13 163 Humboldt Trinidad, near boat landing Trinidad Comment
  HSC89504  Solanum furcatum M. Roantree 1985-5-30 72 Humboldt E side of Trinidad Head along dirt road Comment
  UC1196158  Solanum sarrachoides J. P. Tracy Sept. 1907 2605 Humboldt immediate vicinity of Eureka 0 Comment
  UC1196155  Solanum umbelliferum Joseph P. Tracy 1937-7-24 15529 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  UC577350  Solanum umbelliferum Joseph P. Tracy 1937-7-24 15528 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  RSA47108  Solanum umbelliferum Doris K. Kildale 1925-5-10 625 Humboldt Strongs Station Comment
  UC1196153  Solanum umbelliferum Joseph P. Tracy 1934-6-20 13240 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  CAS-BOT-BC385867  Solidago canadensis Mrytle Paulson 1918-4-1 s.n. Humboldt Eureka Comment
  RSA167400  Solidago canadensis subsp. elongata Joseph P. Tracy 1948-9-12 18210 Humboldt Trinity Summit, at head of meadow at Box Camp. 1463 Comment
  HSC75261  Solidago elongata J. O. Sawyer, M. A. Ericksen 1980-8-18 4055 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  HSC76412  Solidago elongata D. K. Imper 1981-7-21 887 Humboldt Near Table Bluff 38 Comment
  UC630465  Solidago elongata H. E. and S. T. Parks September 1937 24081 Humboldt Spruce Cove , Spruce Cove (Trinidad) 64 Comment
  HSC67441  Solidago spathulata J. P. Smith 1971-10-6 4948 Humboldt End of Murray Rd. in McKinleyville. Comment
  RSA167399  Solidago spathulata Joseph P. Tracy 1948-9-26 18226 Humboldt Fickle Hill, six miles southeast of Arcata. 610 Comment
  RSA24389  Solidago spathulata C. B. Wolf 1941-2-22 9916 Humboldt Little River Beach State Park (north of Arcata). 8 Comment
  UC1541619  Solidago velutina subsp. californica H. E. and S. T. Parks 1937-9-1 24081 Humboldt Trinidad , Trinidad (Spruce Cove) 64 Comment
  UC582629  Soliva sessilis Joseph P. Tracy 1936-6-3 14852 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC6219  Sonchus asper Paul Shields 1955-6-16 Humboldt HSC Campus Comment
  HSC104456  Sonchus oleraceus Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 25 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC164789  Sonchus oleraceus J. P. Tracy 1903-8-2 1926 Humboldt immediate vicinity Eureka 0 Comment
  HSC97205  Sorbus scopulina Kiera A. Freeman, Heather J. Perry 2007-6-13 7 Humboldt 1.3 mi. E of NF1 on FS 5N04 1585 Comment
  UC466715  Sorbus scopulina Mrs. Manning 1900-1 Humboldt Mt. Hupa Trinity Summit Comment
  POM312952  Sparganium angustifolium subsp. emersum S. Galen Smith, Malcolm A. Nobs 1949-8-9 1228 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley. Comment
  RSA244508  Sparganium angustifolium subsp. emersum Larry E. DeBuhr, Gary D. Wallace 1973-9-16 1198 Humboldt At Gold Bluff Beach in Prairie Creek Redwoods State Park. Comment
  HSC87358  Spartina densiflora K. Berg 1986-7-28 637 Humboldt Humboldt Bay, Arcata, foot of I St. Comment
  RSA10096  Spartina densiflora Joseph P. Tracy 1924-8-4 6738 Humboldt Eureka, Marsh at R.R. station Comment
  RSA246884  Spartina densiflora R. F. Thorne, P. Everett 1965-8-7 35203 Humboldt Near sea level, Samoa Peninsula Comment
  LA39194  Spartina foliosa W. A. Silveus; 1938-7-10 2966 Humboldt Eureka Comment
  UC161005  Spergula arvensis subsp. arvensis Joseph P. Tracy 1909-6-6 2983 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC668080  Spergularia rubra Joseph P. Tracy 1936-6-3 14850 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC149617  Spiraea douglasii Milo S. Baker 1927-8-21 2484 b Humboldt [Spagnum] Sphagnum Bog near Bald Mt. 914 Comment
  HSC40970  Spiraea douglasii Linda M. Barker 1976-6-14 1600 Humboldt 3 mi. W of Arcata Comment
  POM274921  Spiraea douglasii Lyman D. Benson 1929-7-15 1822 Humboldt Fortuna Bog near the sea. Comment
  RSA43849  Spiraea douglasii H. M. Pollard 1947-8-19 s.n. Humboldt Klamath River [N of] Redcap Creek. Orleans Region. Comment
  UCSB26682  Spiraea douglasii Havlik, Neil 1968-8-21 Humboldt south end of Big Lagoon, north of Trinidad 1 Comment
  CHSC804  Stachys ajugoides var. rigida 1941-5-30 Humboldt Comment
  UCLA71116  Stachys ajugoides var. rigida H. Lewis 1940-7-2 Humboldt Stone Lagoon Comment
  UC1222860  Stachys ajugoides var. rigida Joseph P. Tracy 1950-6-8 18742 Humboldt near Petrolia (at crossing of river, hills between town and Ocean); Bear River 30 Comment
  UCLA71115  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Little River Beach State Park Comment
  HSC96495  Stachys chamissonis Gordon Leppig 1997-6-19 458 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  SD93024  Stachys chamissonis W. Bertsch 1953-7-30 230 Humboldt Highway 101, 5 miles north of Arcata. Comment
  SEINET10499253  Stachys chamissonis H. Lewis 1940-7-3 Lewis s.n. Humboldt Little river beach state park Comment
  SEINET4082543  Stachys chamissonis O. M. Clark 1932-1 5340 Humboldt North Eureka. Comment
  HSC39166  Stachys mexicana D. E. Anderson, J. P. Smith 1971-6-28 - 1237 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC61048  Stachys rigida Jimerson, J. Pageau 1979-8-10 747 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC48831  Stachys rigida var. rigida Brad Klipfel 1973-7-31 253 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1103544  Stellaria borealis subsp. sitchana Joseph P. Tracy 1935-7-27 14294 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  UC668076  Stellaria crispa Joseph P. Tracy 1930-7-16 8926 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC4277  Stellaria media Lincoln Constance 1934-5-31 754 Humboldt S Fork of the Eel River, Bull Creek Flat, along Bull Creek, W boundary of park to Grasshopper Peak, N side of creek Comment
  HSC48033  Stellaria nitens Brad Klipfel 1974-5-27 407 Humboldt Horse Mtn. Comment
  UC161001  Stellaria nitens Joseph P. Tracy 1910-4-24 3126 Humboldt near Humboldt Bay (Ocean Beach at Humboldt Bay); Northern Coast Region Comment
  CAS-BOT-BC375783  Stephanomeria virgata Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1199362  Stephanomeria virgata subsp. pleurocarpa Joseph P. Tracy 1922-9-3 6112 Humboldt Bluff Creek, Klamath River Northern Coast Ranges, Klamath River 152 Comment
  HSC97388  Stipa lepida G. N. Bos 1965-5-15 279 Humboldt Berry Summit near Hwy. 299 Comment
  HSC98184  Stipa occidentalis var. californica R. D. Rogers 1964-5-15 28 Humboldt Rousseau Ranch, 18 mi. SE of Arcata. Comment
  CAS-BOT-BC87607  Streptanthus tortuosus Doris K. Kildale 1928-5-27 5955 Humboldt Kneeland Prairie. 853 Comment
  HSC104430  Streptanthus tortuosus Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  JEPS54025  Streptanthus tortuosus var. orbiculatus W. L. Jepson Jul 16 1902-Jul 23 1902 2118 Humboldt Trinity Summit 2133 Comment
  HSC56382  Symphoricarpos albus var. laevigatus Griswold, Butler 1979-7-11 6912 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC65140  Symphoricarpos albus var. laevigatus J. P. Smith 1971-10-9 5039 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC98899  Symphoricarpos albus var. laevigatus Cara Witte 2007-8-1 611 Humboldt National Forest 1 on Kinsey Ridge. 1 1/2 miles north of White Oak Opening. 1256 Comment
  UC1239538  Symphoricarpos mollis Joseph P. Tracy 1935-6-23 13998 Humboldt French Camp Ridge 1066 Comment
  HSC58804  Symphyotrichum bracteolatum G. L. Clifton, Griswold 1979-7-31 11705 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC96486  Symphyotrichum chilense Gordon Leppig 1997-8-13 631 Humboldt Big Lagoon County Park 3 Comment
  CAS-BOT-BC98973  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1215 Humboldt Trinity Summit near Ranger Station 1828 Comment
  RSA153390  Symphytum asperum T. C. Fuller 1961-9-28 7047 Humboldt Humboldt County: Arcata Bottoms, 0.5 mile S of the Mad River, 0.75mile W of Hwy 101, 2miles N of Arcata Comment
  SEINET11116061  Symphytum asperum Unknown 1968-1 2120 Humboldt Plants of California HUMBOLDT CO.: approx. 2 miles east of Hwy. jct. U.S. 101 & Tompkins Hill Road, on Tompkins Hill Road, south of Eureka. Elevation approx. 100 feet. Comment
  UC1198059  Synthyris reniformis Joseph P. Tracy 1909-5-16 2969 Humboldt Coast bluffs 3 mi n Trinidad; Northern Coast Ranges 30 Comment
  UC1199278  Tanacetum balsamita Joseph P. Tracy 1936-9-18 15188 Humboldt Trinity River Valley, at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC376734  Tanacetum bipinnatum David D. Keck; J. Clausen 1935-6-16 3388 Humboldt Mouth of Little River Comment
  HSC40942  Tanacetum bipinnatum Linda M. Barker 1976-6-1 1561 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CAS-BOT-BC376833  Tanacetum vulgare Carl B. Wolf 1937-9-12 9330 Humboldt Big Lagoon, So. side along Redwood Highway 6 Comment
  SBBG53001  Tanacetum vulgare J. D. Hobson -Jun-1966 Humboldt Loleta Comment
  HSC38883  Tauschia kelloggii J. P. Smith, Steve Selva 1970-6-14 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC98504  Taxus brevifolia Cara Witte 2008-8-6 1000 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  SBBG319  Taxus brevifolia H. and M. Dearing 1939-6-23 3691 Humboldt E fork of Willow Crk 609 Comment
  HSC31634  Tellima grandiflora Glenn McGourty 1974-4-27 20 Humboldt 1 mi. from Capetown Bridge Comment
  JEPS49699  Tellima grandiflora Milo S. Baker 1923-7-24 Humboldt near Carlotta (Wilder's Ranch) Comment
  UCSB24358  Tellima grandiflora Tracy, Joseph 1935-7-23 Humboldt Trinity Summit; Lower End of Brett Hole 1584 Comment
  CAS-BOT-BC392287  Thalictrum fendleri Doris K. Kildale 1926-4-4 1749 Humboldt Trinidad Comment
  UC1222570  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1950-7-6 18986 Humboldt Burr Valley Buck Mountain (nw slope of mt., lower end of valley) 1066 Comment
  UC668275  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1937-5-30 15308 Humboldt along creek 3 mi n Blocksburg; Larrabee Creek 457 Comment
  RSA167423  Thalictrum polycarpum Joseph P. Tracy 1950-7-25 18879 Humboldt Humboldt County: Burr Valley, NW slope of Buck Mtn, alt 3500ft 1067 Comment
  UC1129923  Thermopsis gracilis A. E. Wieslander 1931-5-17 197 Humboldt Bald Hills Hoopa Quadrangle Comment
  CAS-BOT-BC81319  Thuja plicata Milo S. Baker 1927-8-21 2471 a Humboldt Cold Bog, in vicinity of Bald Mt. 914 Comment
  OBI36631  Thuja plicata David J. Keil 1983-7-2 17308 Humboldt Ca. 10.5 mi E of jctn with US 101 along SR 299 Comment
  CAS-BOT-BC88320  Thysanocarpus curvipes L. B. Kildale 1930-6-1 9763 Humboldt Klamath River at Bluff Creek. Comment
  CAS-BOT-BC88322  Thysanocarpus curvipes John H. Thomas 1968-4-21 14355 Humboldt About 6.4 miles south of Weitchpec (as measured along the road). 170 Comment
  SBBG21852  Tiarella trifoliata var. unifoliata D. Myrick 1964-7-26 979 Humboldt Redwood Hwy 101 near Garberville 152 Comment
  UC154081  Tiarella trifoliata var. unifoliata J. P. Tracy 1907-6-20 2567 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC1211979  Tiarella trifoliata var. unifoliata H. W. Grinnell 1932-7-23 49 Humboldt South Fork Mountain; below McKay Camp 1524 Comment
  HSC21159  Tonella tenella D. E. Anderson 1965-4-24 3546 Humboldt 2 mi. E of Berry Summit along Hwy. 299 Comment
  UC27661  Tonella tenella Mrs. M. H. Manning Apr 1899 Humboldt Hoopa Valley Comment
  HSC97505  Tonella tenella Cara Witte 2007-5-22 74 Humboldt Cold Spring. 0.5 miles south of Titlow Hill. 1422 Comment
  HSC37517  Torreyochloa pallida var. pauciflora J. D. Ackerman, A. M. Montalvo 1975-8-9 634 Humboldt Arcata, W end road, near Arcata Overhead (101 overpass) Comment
  UCD93213  Torreyochloa pallida var. pauciflora A. H. Murphy 1951-7-1 84 Humboldt shore of Bransetter Lake south of Capetown. Comment
  HSC49820  Toxicodendron diversilobum R. York 1979-4-21 244 Humboldt Behind the town of Korbel, Camp Bauer Comment
  RSA46908  Toxicodendron diversilobum Doris K. Kildale 1926-9-9 2676 Humboldt Van Duzen River Comment
  HSC86487  Tracyina rostrata Tom Duebendorfer 1988-6-13 882 Humboldt N of Alderpoint, take Blocksburg Rd. N., 0.15 mi. E on Stewart Ranch Rd. 210 Comment
Read comments
May 18 2010
  UC668266  Trautvetteria caroliniensis var. occidentalis Joseph P. Tracy 1937-7-25 15564 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC32531  Trichostema lanceolatum Thomas W. Nelson 1973-9-3 1131 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA82198  Trichostema laxum F. W. Peirson 1926-7-13 7063 Humboldt Mad River, vicinity of Blue Lake. Comment
  RSA167428  Trichostema oblongum Joseph P. Tracy 1950-8-8 19284 Humboldt Croghan Hole, on Trinity Summit 1677 Comment
  UC1223382  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1933-5-20 12248 Humboldt 1 mile west Petrolia (Mattole Valley); Northern Coast Ranges Comment
  UC1197231  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1925-5-30 7023 Humboldt McClellan Mtn Northern Coast Ranges 822 Comment
  UC1197242  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1913-6-20 4225 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges 762 Comment
  UC1223509  Trifolium barbigerum Joseph P. Tracy 1936-6-9 14883 Humboldt Bear River Ridge 609 Comment
  HSC45120  Trifolium bifidum R. Sutherland 1978-5-27 1 .27578 Humboldt Whitehorn 311 Comment
  UC1197059  Trifolium bifidum var. decipiens Joseph P. Tracy 1925-8-9 7226 Humboldt near Miranda (Salmon Creek); Northern Coast Ranges 91 Comment
  UC1541261  Trifolium breweri Harold E. Parks May 1935 4997 Humboldt Egg Point Trinidad Comment
  HSC71452  Trifolium campestre J. P. Smith 1973-5-26 6811 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC495733  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1932-5-10 9948 Humboldt near Petrolia (Mattole River); Northern Coast Ranges 15 Comment
  HSC73960  Trifolium dichotomum Gail Newton 1980-6-7 128 Humboldt Near Brush Mtn. 1128 Comment
  OBI78200  Trifolium dichotomum Joseph P. Tracy 1933-5-20 12234 Humboldt Mouth of Domingo Crk. Cape Mendocino, S of point of Cape 30 Comment
  HSC104458  Trifolium dubium Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 11 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UCD108818  Trifolium dubium Linda M. Barker 1976-5-13 1476 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC40039  Trifolium eriocephalum Thomas W. Nelson, James Nelson 1976-7-1 2890 Humboldt Ridge N of Bear Creek 1494 Comment
  UC16714 Image available Trifolium eriocephalum W. C. Blasdale 1896-6-8 Humboldt near Deer Creek; Mad River; Mad River near Deer Creek, Humboldt Co. Comment
  OBI4982  Trifolium fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt Cape Ridge. One mi E of Cape Mendocino 152 Comment
  HSC38085  Trifolium gracilentum Thomas W. Nelson, James Nelson 1976-5-30 2606 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UCR84716  Trifolium incarnatum Kathy Harper 1992-5-14 s.n. Humboldt North Coast Range, State Hwy 36 just north of the south fork of the Van Duzen River 762 Comment
  HSC101996  Trifolium longipes subsp. hansenii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 895 Humboldt Patterson Meadows 1555 Comment
  UC495656  Trifolium longipes subsp. hansenii Joseph P. Tracy 1930-6-8 8726 Humboldt Northern Coast Ranges. Kneeland Prairie. 762 Comment
  HSC98664  Trifolium longipes subsp. oreganum Cara Witte 2008-7-2 821 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  HSC71447  Trifolium microcephalum J. P. Smith, Advanced Plant Taxonomy Class 1971-10-9 5023 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  POM20264  Trifolium microdon L. R. Abrams 1916-6-11 6037 Humboldt Mouth of Grizzly Creed on Van Duzon River. Comment
  JEPS66102  Trifolium obtusiflorum Lincoln Constance 1934-5-26 669 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek Region Comment
  POM214882  Trifolium obtusiflorum Joseph P. Tracy 1932-5-22 10119 Humboldt South fork of Eel River, between Miranda and Redway. Comment
  UC1197521  Trifolium obtusiflorum Joseph P. Tracy 1911-6-11 3241 Humboldt Trinidad Station Northern Coast Ranges 91 Comment
  SBBG67249  Trifolium pratense R. Hartwell 1938-8-6 Humboldt near Eureka Comment
  HSC28180  Trifolium repens Richard Curtis 1973-9-27 18 Humboldt Arcata, on the N side of 7th St. just before it crosses the freeway. Comment
  HSC84044  Trifolium subterraneum L. P. Janeway 1983-4-30 240 Humboldt 21 Comment
  SEINET4206955  Trifolium variegatum Carol Gunn 1963-6-3 2701 Humboldt 1/2 mile south of Korbel on gravel road. In ditch along South Mad River.; 0 Comment
  JEPS4186  Trifolium variegatum var. melananthum H. E. Parks and Joseph P. Tracy 1925-6-27 7145 Humboldt Alton Northern Coast Ranges 30 Comment
  UC495687  Trifolium willdenovii Joseph P. Tracy 1932-5-16 10110 Humboldt near Samoa; Northern Coast Ranges, Humboldt Bay 6 Comment
  BLMAR259  Trifolium wormskioldii Jennifer Anthony-Wheeler 1998-4-22 259 Humboldt King range, strawberry rock grazing allotment 280 Comment
  HSC2149  Trifolium wormskioldii J. P. Tracy 1926-7-25 7750 Humboldt Big Lagoon Comment
  SEINET12156843  Trifolium wormskioldii J. P. Tracy 1938-1 16056 Humboldt Field's Landing, 2 mi S of town 6 Comment
  UC1223521  Trifolium wormskioldii Joseph P. Tracy 1938-7-12 16052 Humboldt w end of Table Bluff Comment
  CHSC31317  Triglochin maritima Mark Stopher 1980-6-4 88 Humboldt Near banks of Elk River and tidal creeks near Hwy 101. 1 Comment
  HSC59493  Triglochin maritima M. A. Ericksen 1979-4-21 214 Humboldt Big Lagoon County Beach Comment
  HSC97468  Trillium albidum Cara Witte 2007-5-8 4 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  UC1222530  Trillium albidum Joseph P. Tracy 1950-5-7 18646 Humboldt head of S. Yager Comment
  CAS-BOT-BC133393  Trillium ovatum Doris K. Kildale 1927-3-20 2929 Humboldt Philipsville, south fork of Eel River Comment
  SEINET10275389  Trillium ovatum Unknown 1963-2-24 52 Humboldt altitude ca 250 ft, floor of Redwood Forest; Nelson Grove near bank of Eel River, Humboldt State Park Comment
  UCD18653  Trillium ovatum Roman Gankin 1956-3-17 105 Humboldt off US Hwy 101. Comment
  HSC49797  Trillium ovatum subsp. ovatum R. York 1979-4-9 215 Humboldt Behind HSU campus Comment
  SEINET10906254  Triodanis biflora Chandler CHANDLER 1415 Humboldt Klamath River 427 Comment
  CHSC118618  Triphysaria eriantha subsp. eriantha Richard R. Halse 2016-3-24 9683 Humboldt Along U.S. Hwy. 101 ca. 9.5 miles south of Garberville, just north fo the Mendocino County Line. 168 Comment
  HSC33758  Triphysaria eriantha subsp. eriantha A. Montalvo 1975-5-24 275 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC20844  Triphysaria eriantha subsp. eriantha L. D. Thurman 1965-4-8 626 Humboldt 4.4 mi. S of Samoa Comment
  HSC59238  Triphysaria eriantha subsp. eriantha Clark L. Miller 1979-5-9 5115 Humboldt Along Samoa Blvd., 200 yards N of airport Comment
  UC702568  Triphysaria pusilla C. C. and S. K. Harris 1942-6-18 1283 Humboldt 1 mi n and 3 mi w Chalk Mountain; n and w of Chalk Mountain 665 Comment
  HSC40953  Triphysaria versicolor subsp. versicolor Linda M. Barker 1976-4-30 1424 Humboldt 3 mi. W of Arcata Comment
  JEPS13343  Triphysaria versicolor subsp. versicolor W. K. Parks July, 1932 1427 Humboldt Trinidad Comment
  UC1198042  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1936-6-6 14862 Humboldt Eureka 6 Comment
  HSC102548  Trisetum canescens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1536 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  POM118380  Trisetum canescens Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  RSA10081  Trisetum canescens Joseph P. Tracy 1926-6-6 7557 Humboldt Northern Coast Ranges, Hoopa Mountain, near summit on road west from Hoopa to Bair's. 1067 Comment
  SEINET200925 Image available Trisetum canescens Joseph P. Tracy 1935-7-30 14359 Humboldt Salmon Summit. 1768 Comment
  HSC40318  Trisetum cernuum Thomas W. Nelson, James Nelson 1976-7-28 3074 Humboldt Along small creek on the E side of old trail from lookout to Blocksburg. 1555 Comment
  SEINET200948 Image available Trisetum cernuum Joseph P. Tracy 1920-5-30 5335 Humboldt Eureka. 61 Comment
  UC1714630  Trisetum cernuum Joseph P. Tracy 1926-6-13 7599 Humboldt near Blue Lake (Liscom Hill Road); North Coast Ranges 152 Comment
  UC922032  Trisetum cernuum Joseph P. Tracy 1950-7-2 18962 Humboldt 6 mi ne Hawkins Bar (in woods at Fern Spring); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC77401  Triteleia bridgesii L. P. Janeway 1983-5-29 319 Humboldt Along rd. to Fish Lake, 0.1 mi. W of Hwy. 96 152 Comment
  RSA167432  Triteleia hyacinthina Joseph P. Tracy 1950-6-25 18896 Humboldt Buck Mountain, high meadow on west side, 3 miles south of Burr Valley 1159 Comment
  JEPS2503 Image available Triteleia laxa W. L. Jepson 1921-8-11 9412 a Humboldt Big Lagoon Humboldt coast; Big Lagoon, Humboldt coast Comment
  CAS-BOT-BC526349  Triteleia laxa Ira L. Wiggins 1932-6-18 5876 Humboldt Mouth of Little River Comment
  UC422834  Triteleia laxa P. E. Goddard 1907-5-29 b. 110 Humboldt Van Duzen Comment
  UC1103154  Triticum vulgare Joseph P. Tracy 1916-8-20 4751 Humboldt Eureka Northern Coast Ranges 0 Comment
  SBBG11120  Tsuga heterophylla D. E. Breedlove 1961-7-4 669 Humboldt US Hwy 299, 4.1 mi E of the N fork of the Mad River 609 Comment
  SBBG83394  Tsuga heterophylla R. Gankin 1965-8-7 563 Humboldt just N of parking area; Big Lagoon County Park Comment
  UCR28003  Tsuga heterophylla A. C. Sanders 1981-8-6 2303 Humboldt Patrick's Point State Park, north of Eureka 30 Comment
  CAS-BOT-BC91106  Umbellularia californica P. C. Everett; E. K. Balls 1959-10-25 23958 Humboldt 12.4 miles west from Willow Creek along U.S. Highway 299 to Arcata. 655 Comment
  CAS-BOT-BC91108  Umbellularia californica Doris K. Kildale 1927-8-16 2515 Humboldt Upper Willow Creek Flat - Trinity River Valley. 152 Comment
  HSC89472  Urtica dioica subsp. gracilis P. A. Daly 1986-3-12 95 Humboldt Trinidad Head, along trail 61 Comment
  UCD111533  Urtica dioica subsp. gracilis Linda M. Barker 1976-9-3 1696 Humboldt 3 miles west of Arcata. Comment
  HSC15307  Utricularia macrorhiza W. B. Strickland 1968-3-28 Humboldt McClellan Mtn. Rd., off Hwy. 36 above Bridgeville 457 Comment
  HSC37342  Vaccinium ovatum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 481 Humboldt Along Lost Man Creek. 38 Comment
  HSC7915  Vaccinium ovatum D. E. Anderson 1961-8-11 1733 Humboldt Redwood preserve E of HSU campus 30 Comment
  UC1173686  Vaccinium ovatum Joseph P. Tracy 1939-5-30 16304 Humboldt Dinsmore's, along Van Duzen River Van Duzen River 731 Comment
  UC1193355  Vaccinium ovatum P. Zinke 1950-9-21 165 Humboldt se slope Kerr Peak (Quad 29C2) 609 Comment
  UC1197779  Vaccinium ovatum Joseph P. Tracy 1922-5-21 6052 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  UC154182  Vaccinium ovatum Harley P. Chandler Jun 1901 1397 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Valley 152 Comment
  UC412670  Vaccinium ovatum Mrs. M. H. Manning Apr 1899 Humboldt Hupa Valley Comment
  UC1225910  Vaccinium parvifolium Joseph P. Tracy 1945-3-10 17495 Humboldt Eureka 30 Comment
  HSC100480  Vaccinium parvifolium Carl C. Marshall May 1886 217 Humboldt Woods, Humboldt Bay. Comment
  HSC102019  Vaccinium uliginosum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 920 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC18950  Vaccinium uliginosum J. O. Sawyer 1968-9-11 729 Humboldt Near Water-dog Lakes 1768 Comment
  SEINET12335251  Valeriana sitchensis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -313 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  UC602496  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1932-7-13 10505 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC81827  Valeriana sitchensis subsp. sitchensis Thomas W. Nelson 1979-7-11 5027 Humboldt Along trail from Grogan's Hole to North Trinity Mtn., from Grogan's Hole to summit. Comment
  HSC57994  Vancouveria hexandra G. L. Clifton, Griswold 1979-7-31 11757 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  SD73187  Vancouveria hexandra Darley F. Howe 1969-6-4 4630 Humboldt 14.6 miles east of Alton on Highway #36 89 Comment
  HSC62904  Vancouveria hexandra J. M. DiTomaso 1979-4-22 905 Humboldt 14th St. in Redwood Park adjacent to HSU Comment
  CAS-BOT-BC76093  Vancouveria planipetala M. S. Jussel 1931-5-2 113 Humboldt Garberville. Comment
  RSA120717  Vancouveria planipetala S. S. Tillett 1956-7-6 613 Humboldt Along Bar Shanty Road, 9 mi. from Orleans. 945 Comment
  SEINET10932381  Vancouveria planipetala Mary Merello 1993-6-19 Merello 658 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  HSC99039  Vancouveria planipetala Cara Witte 2008-7-7 838 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1 mile east of Horse Mountain Mine. 1241 Comment
  UCD95101  Vancouveria planipetala Rolf Y. Berg 1963-7-5 s.n. Humboldt near south entrance to Benbow Lake State Park, U.S. Highway 101. Comment
  CAS-BOT-BC527425  Veratrum californicum Joseph P. Tracy 1934-6-21 13244 Humboldt Local in wet place at Still Ranch 2 mi. S of Fields Landing (exterminated there about 1937) Comment
  HSC57172  Veratrum insolitum Overton, Butler 1979-7-26 9981 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  UC535722  Verbascum blattaria Eleanor Armstrong 1934-8-18 1178 Humboldt Richardson Grove; along river 121 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
  HSC59134  Veronica americana Terry Roth 1979-5-29 102 Humboldt Glendale exit off Hwy. 299, gravel road towards Mad River, near Mad River 30 Comment
  HSC21217  Veronica persica D. K. Smith 1968-1-16 1 Humboldt 0.5 mi. S of Blue Lake on West End Rd. Comment
  UC147877  Veronica scutellata J. P. Tracy 1901-6-30 1196 Humboldt immediate vicinity of Eureka 0 Comment
  UCR143251  Veronica scutellata C. B. Wolf 1937-6-18 8895 Humboldt North Coast, 0.5 mi south of Fortuna 15 Comment
  HSC72498  Veronica serpyllifolia subsp. humifusa J. P. Smith, Steve Selva 1970-6-30 4135 Humboldt Comment
  HSC82109  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1980-5-25 5252 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  HSC89497  Vicia gigantea P. A. Daly 1984-5-8 3 Humboldt Trinidad Head 61 Comment
  UC162859  Vicia hirsuta J. P. Tracy 1906-6-29 2513 Humboldt immediate vicinity Eureka 0 Comment
  RSA168915  Vicia hirsuta Joseph P. Tracy 1944-6-10 17474 Humboldt Eureka. Comment
  HSC31808  Vicia sativa subsp. sativa Donald Spalinger 1974-4-25 22 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  UC1197471  Vicia sativa subsp. sativa Joseph P. Tracy 1915-6-6 4651 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC3226  Vinca major W. R. Brigham 1962-5-3 3 Humboldt Near N end of old Hwy. 101 N of Big Lagoon Rd. Comment
  HSC31450  Viola adunca D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5568 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC36881  Viola adunca J. P. Smith, J. O. Sawyer, J. Cole 1976-4-18 8611 Humboldt Bald Hills Rd., 13 mi. from its junction with U.S. 101 Comment
  UC164812  Viola adunca Joseph P. Tracy 1908-6-7 2615 Humboldt Butler Valley on Mad River; Northern Coast Ranges, Mad River 152 Comment
  HSC33148  Viola cuneata Thomas W. Nelson, J. Cole, Brad Klipfel 1974-5-8 1244 Humboldt Horse Mtn. area, E of microwave tower 1220 Comment
  RSA256721  Viola cuneata D. E. Anderson 1972-6-20 5749 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  UC1762591  Viola cuneata Harley P. Chandler Jun 1901 1297 - Humboldt Hupa Indian Reservation North Coast Ranges 609 Comment
  HSC72691  Viola glabella Gail Newton 1980-6-24 548 Humboldt Near Ladder Rock 1500 Comment
  UCR138879  Viola hallii J. Marshall, J. Savage, L. Allison 1997-5-10 32 Humboldt Humboldt Baseline Meridian: Forest Service Rd. #1, mile marker #8 945 Comment
  UC249589  Viola ocellata Joseph P. Tracy 1922-4-30 6034 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  POM286593  Viola ocellata Lyman D. Benson 1928-7-11 403 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  HSC90070  Viola praemorsa subsp. praemorsa C. Baldwin, A. Hiss, P. Reynolds 1990-4-27 56 Humboldt Titlow Rd., 0.5 mi. S of Hwy. 299; 50 yds. W of Titlow Rd. 854 Comment
  UC1222513  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1951-5-20 19403 Humboldt near Kneeland School House Comment
  HSC98758  Viola purpurea subsp. purpurea Cara Witte 2008-7-2 818 Humboldt Board Camp Mountain/ Tri Board Camp. Forest Service Road 4N38. 1577 Comment
  CHSC24918  Viola sempervirens M. B. Simpson 1976-4-10 21 Humboldt Ca. 1 yd s of Wagon Wheel Rd, ca. .3 mi e of West Haven Dr, ca. 13 mi n of Arcata. 121 Comment
  HSC69872  Vulpia bromoides Thomas W. Nelson 1978-5-29 4094 Humboldt On McKeown Ranch N of Dinsmore. 762 Comment
  HSC90693  Vulpia bromoides Gail Newton 1982-5-5 3559 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC9835  Vulpia bromoides R. H. Berg 1963-3-9 6 Humboldt Fickle Hill area, Arcata. Comment
  UC180481  Vulpia microstachys var. pauciflora Joseph P. Tracy 1914-5-14 4463 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  HSC45027  Vulpia myuros R. Sutherland 1978-5-13 4 .13578 Humboldt Mattole River. 282 Comment
  HSC70744  Vulpia myuros R. York 1980-5-17 539 Humboldt Near Le Perron Peak 1066 Comment
  RSA10060  Vulpia myuros var. hirsuta Joseph P. Tracy 1925-5-17 6968 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  UC525655  Vulpia myuros var. hirsuta Joseph P. Tracy 1933-6-13 12598 Humboldt w of Hoopa (near summit on road to Bair's); Hoopa Mountain 1066 Comment
  HSC33414  Whipplea modesta Thomas W. Nelson 1974-5-30 1348 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  JEPS60110  Woodwardia fimbriata Lincoln Constance 1934-6-2 784 Humboldt S Fork Eel River; Bull Creek Region Comment
  HSC13047  Woodwardia fimbriata Jana Kattenhorn 1970-10-24 122 Humboldt H.S.C. Campus, Arcata, N side of building 53 Comment
  CAS-BOT-BC382924  Wyethia angustifolia Carl B. Wolf 1927-8-29 1200 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge, Mt. Glen Comment
  CAS-BOT-BC382926  Wyethia angustifolia Frank W. Gould 1939-5-29 841 Humboldt Horse Mountain 914 Comment
  SEINET11799537  Wyethia angustifolia J. P. Tracy 1950-1 18739 Humboldt near Capetown, Bear River Ridge 30 Comment
  HSC93595  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mtn. Buck Flat, Titlow Hill Rd., at Ammon Ridge Rd. 1524 Comment
  UC1199273  Wyethia longicaulis Joseph P. Tracy 1933-7-25 12897 Humboldt near Clear Lake; North Coast Ranges, Grouse Mountain 1524 Comment
  UC1198219  Xerophyllum tenax Joseph P. Tracy 1933-8-6 12954 Humboldt French Camp Ridge 1066 Comment
  UC154242  Yabea microcarpa Joseph P. Tracy 1906-5-13 2454 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  HSC12355  Zeltnera muehlenbergii Steve Dorei 1970-10-31 130 Humboldt Scotia Bluff area Comment
  HSC26270  Zigadenus venenosus var. venenosus Thomas W. Nelson 1971-5-31 450 Humboldt 915 Comment



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