Search Results — 2000 specimen records retrieved (1363 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC55100  Abies concolor G. L. Clifton 1979-7-31 11814 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC76287  Abies concolor Denis Kearns 1981-7-22 306 Humboldt Near Whiteys Peak. 1487 Comment
  HSC37927  Abronia latifolia Peter Sorensen 1976-5-28 Humboldt N spit Comment
  HSC90244  Abronia latifolia Jean Hanson 1980-5-24 56 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  SDSU2131  Acer circinatum Harvey 1938-8-14 2327 Humboldt US 299 Arcata - Willow Creek. Hayden Flat. Comment
  CAS-BOT-BC331588  Acer macrophyllum Doris K. Kildale; L. B. Kildale 1930-4-13 9575 Humboldt Bridgeville 289 Comment
  CAS-BOT-BC331589  Acer macrophyllum Doris K. Kildale 1927-5-1 3117 Humboldt Blocksburg 518 Comment
  CAS-BOT-BC331586  Acer macrophyllum Doris K. Kildale 1926-9-5 2636 Humboldt Lasseck's Peaks, on trail between Covel[?] Camp and Red Rock 1676 Comment
  CAS-BOT-BC28579  Achillea millefolium Ashley Colt Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC28586  Achillea millefolium David D. Keck 1944-7-11 5494 Humboldt Cape Mendocino 3 Comment
  HSC36212  Achillea millefolium John Rehling 1975-9-26 108 Humboldt Near Alliance Rd. Comment
  SEINET11854568  Achillea millefolium J. P. Tracy 1947-1 17764 Humboldt Mouth of Little River Comment
  HSC3333  Achlys triphylla D. E. Anderson 1965-5-15 3686 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC3334  Achlys triphylla D. E. Anderson 1962-5-1 2201 Humboldt 1 mi. W of Hoopa Comment
  RSA120761  Achlys triphylla S. S. Tillett 1956-7-6 621 Humboldt 11 mi. from Orlenas, on Bar Shanty Road. 1159 Comment
  RSA21086  Achlys triphylla C. B. Wolf 1937-6-19 8914 Humboldt North Coast Range, 7.2 mi. above Bridgeville on grade to Dinsmores. 457 Comment
  SEINET5585536 Image available Achnatherum lemmonii Joseph P. Tracy 1926-1 7649 Humboldt Horse Mountain 1524 Comment
  UC526666  Achnatherum lemmonii Joseph P. Tracy 1927-5-14 8000 Humboldt near south fork Trinity River (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  SEINET11682291  Achnatherum lemmonii J. P. Tracy 1951-1 19563 Humboldt halfway between Snow Camp & Twin Lakes (at Preston's old gate near road) Comment
  RSA47136  Achyrachaena mollis Doris K. Kildale 1925-5-31 s.n. Humboldt Bucilana Bridge, river terrace Comment
  UC1222924  Achyrachaena mollis Joseph P. Tracy 1950-6-15 18811 Humboldt n 7 mi at Jenk's Ranch Harris; Mail Ridge Comment
  HSC71471  Acmispon micranthus J. P. Smith, J. O. Sawyer 1973-5-12 6673 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  CAS-BOT-BC418768  Aconogonon phytolaccifolium Joseph P. Tracy 1933-7-26 12921 Humboldt Grouse Mountain 1524 Comment
  HSC63883  Actaea rubra M. A. Baker 1979-6-27 925 Humboldt Edge of Hoopa Indian Reservation Comment
  HSC97602  Actaea rubra Cara Witte 2007-6-1 175 Humboldt Along Forest Service 5N10. 1.5 miles east of intersection with National Forest 1. 1365 Comment
  CDA24176  Actaea rubra subsp. arguta F. Wetherbee 1962-7-11 Humboldt Bear River Ridge. 0 Comment
  UC164785  Adenocaulon bicolor J. P. Tracy 1901-6-2 1119 Humboldt immediate vicinity Eureka 0 Comment
  RSA418957  Adenocaulon bicolor Lyman Benson 1927-7-11 226 Humboldt Weott Ranger Station, Seaward N Coast Mts. 61 Comment
  CAS-BOT-BC62292  Adiantum aleuticum L. B. Kildale 1930-6-1 9745 Humboldt Klamath River at Weitchpec Comment
  HSC960  Adiantum jordanii D. E. Anderson 1965-5-15 3701 Humboldt About 2 mi. NW of Hoopa on Bald Hills Rd. Comment
  UC503063  Adiantum jordanii Joseph P. Tracy 1932-4-24 9812 Humboldt between Miranda and Redway (S Fork Eel River); North Coast Ranges 91 Comment
  UC62708  Adiantum jordanii Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5512 Humboldt near Pepperwood Pepperwood Comment
  UCD137190  Adiantum jordanii K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC102183  Agastache urticifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1097 Humboldt Patterson Meadows 1555 Comment
  HSC57952  Ageratina occidentalis G. L. Clifton, Griswold 1979-7-31 11634 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC76600  Ageratina occidentalis Mrs. M. H. Manning Jun 1 1900-Jul 1 1900 Humboldt near Hupa; Bold Hill Comment
  JEPS36371  Agoseris apargioides William S. Cooper 1925-7-29 114 Humboldt Samoa Comment
  UC1222885  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt at n end of town Garberville Comment
  UC166821  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1901-6-16 1152 Humboldt at Bucksport; Eureka 0 Comment
  UC582758  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1929-7-4 8621 Humboldt French Camp Ridge French Camp Ridge 1066 Comment
  OBI6922  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1942-7-18 17276 Humboldt N end fo town. Garberville Comment
  HSC75463  Agoseris heterophylla J. O. Sawyer 1980-7-18 3612 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  POM161907  Agoseris heterophylla Joseph P. Tracy 1921-6-12 5816 Humboldt Kneeland Prairie 762 Comment
  UC275458  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7038 A Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  HSC8779  Agrostis densiflora D. E. Anderson 1965-9-5 4073 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  POM126122  Agrostis exarata Joseph P. Tracy 1924-7-13 6731 Humboldt Big Lagoon 6 Comment
  UC1103374  Agrostis exarata J. P. Tracy 1900-7-22 898 Humboldt vicinity Eureka 0 Comment
  UC1145070  Agrostis exarata Joseph P. Tracy 1938-7-6 16021 Humboldt in bog Big Lagoon 6 Comment
  UCD52139  Agrostis exarata Joseph P. Tracy 1936-6-28 15030 Humboldt Bald Mountain; at 'Lake Prairie'. 1066 Comment
  UCD52429  Agrostis exarata P. B. Kennedy 1923-8-3 s.n. Humboldt south of Scotia by road off highway. Comment
  HSC68942  Agrostis hallii Jacqueline Greenleaf 1980-8-5 289 Humboldt Near Dairy Creek. 1158 Comment
  HSC89506  Agrostis hallii M. Roantree 1985-5-30 71 Humboldt SW side of Trinidad Head. Comment
  UC1103526  Agrostis hallii Joseph P. Tracy 1912-7-31 3893 Humboldt nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope Buck Mountain 1066 Comment
  UC511548  Agrostis hallii Ira L. Wiggins 1932-7-25 5896 Humboldt roadsides near McKinleyville Comment
  SEINET10810391  Agrostis longiligula Joseph P. Tracy 1902-7-4 Tracy 1757 Humboldt 0 Comment
  UC180490  Agrostis microphylla Joseph P. Tracy 1914-5-14 4471 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  HSC8805  Agrostis oregonensis R. L. Jarvis 1962-2-9 3 Humboldt Big Lagoon marsh, S of Hwy 101. Comment
  UC526879  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt in cold wet meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC212862  Agrostis pallens Joseph P. Tracy 1919-9-18 5232 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  UC1145073  Agrostis viridis Joseph P. Tracy 1943-8-29 17445 Humboldt Eureka 30 Comment
  CAS-BOT-BC138441  Aira caryophyllea H. E. Parks; S. T. Parks 1936-6-1 5850 Humboldt Spruce Cove, Trinidad. Comment
  SACT000238  Aira caryophyllea H. Stinnett 1963-5-11 Humboldt coastal strand Comment
  UC1103301  Aira caryophyllea Joseph P. Tracy 1914-5-14 4439 Humboldt Fort Seward Northern Coast Ranges Comment
  UC37074  Aira caryophyllea Harley P. Chandler May, 1901 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC726346  Aira caryophyllea A. A. Heller 1923-7-8 13765 Humboldt 10 mi s Dyerville; Humboldt Camp Comment
  SEINET10835851  Aira caryophyllea A. Arthur Heller 1923-7-8 Heller 13765 Humboldt State redwood camp, 10 miles south of Dyerville. Comment
  UCR37535  Alchemilla occidentalis L. P. Janeway 1983-5-1 255 Humboldt Northern Coast, North Spit (Samoa Peninsula). Sand dunes west of Samoa Rd and north of Coast Guard Station 6 Comment
  UC672868  Alisma plantago-aquatica Joseph P. Tracy 1933-8-22 12984 Humboldt 1 mi w Loleta; Mouth of Eel River 6 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
  UC13826  Allium acuminatum Harley P. Chandler June, 1901 1349 Humboldt Hupa Indian Reservation Morth Coast Ranges, Hupa Indian Reservation 152 Comment
  RSA249433  Allium campanulatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5599 Humboldt Mt Lassic and two smaller peaks to immediate E. 1768 Comment
  HSC57406  Allium falcifolium G. L. Clifton, Griswold 1979-7-26 10158 Humboldt Near Salmon Mtn. 2058 Comment
  HSC73536  Allium falcifolium Gail Newton 1980-7-14 1497 Humboldt Near Last Chance Ridge. 1219 Comment
  UC1198200  Allium falcifolium Joseph P. Tracy 1933-7-25 12892 Humboldt Grouse Mountain 1524 Comment
  HSC2936  Allium falcifolium D. E. Anderson 1965-6-1 3762 Humboldt Horse Mtn. 1433 Comment
  HSC2987  Allium unifolium J. F. Knezevich 1968-5-14 438 Humboldt 11 mi. S of Ferndale on rd. to Cape Mendocino 305 Comment
  RSA167424  Allium unifolium Joseph P. Tracy 1950-6-25 18890 Humboldt Burr Valley. Comment
  UC666923  Allium unifolium Joseph P. Tracy 1927-6-8 8119 Humboldt on coast bluffs s Luffenholz Creek; Trinidad 30 Comment
  UC1197756  Allotropa virgata Arthur E. Connick 1926-5-1 Humboldt between Hoopa and Willow Creek (Northern Coast Ranges, Sugar Bowl Mountain); Northern Coast Ranges, Sugar Bowl Mountain 304 Comment
  CAS-BOT-BC171314  Alnus incana subsp. tenuifolia Joseph P. Tracy 1932-7-15 10605 Humboldt Ridges E of Corral Prairie 1828 Comment
  HSC58328  Alnus incana subsp. tenuifolia Overton, Butler 1979-8-2 12626 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  SEINET12027585  Alnus rhombifolia J. P. Tracy 1950-1 19375 Humboldt Klamath River, near Slate Creek, below Orleans 8 mi 122 Comment
  CAS-BOT-BC169543  Alnus rubra Alice Eastwood 1907-4-21 2 Humboldt Trinidad Comment
  RSA24390  Alnus rubra C. B. Wolf 1941-2-22 9917 Humboldt Along Redwood Highway 2.8 miles south of Patricks Point State Park 30 Comment
  RSA167287  Alopecurus geniculatus Joseph P. Tracy 1951-6-21 19524 Humboldt back of Everett Beck House (formerly George Fray) bed of former Goose Lake, Hydesville. Comment
  HSC8897  Alopecurus pratensis W. F. Cartwright 1965-4-22 60 Humboldt 2 mi. W of Arcata on Arcata bottoms Comment
  SEINET202019  Alopecurus saccatus J. P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  UC132199  Amaranthus retroflexus Joseph P. Tracy 1907-8-20 2599 Humboldt near hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC13704  Ambrosia chamissonis Joseph P. Tracy 1937-9-26 15688 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  UC1118432  Ambrosia chamissonis G. T. Nordstrom 1937-7-1 1445 Humboldt 1.6 mi w Orick; Orick Quad. 0 Comment
  HSC79544  Ambrosia chamissonis Kenneth Clark 1981-5-24 1396 Humboldt 100 yards W of Deadman's Gulch 3 Comment
  UC582624  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13687 Humboldt s end Stone Lagoon 3 Comment
  CAS-BOT-BC142884  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-7-17 3756 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC142887  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-5-14 3192 Humboldt Big Lagoon Comment
  RSA183624  Amelanchier florida D. E. Anderson 1964-4-24 3541 Humboldt 0.5 mile from Hwy 299, on Titlow Hill road. Comment
  RSA86667  Ammophila arenaria F. W. Peirson 1941-7-29 13112 Humboldt Little River Beach State Park. Comment
  RSA0089915  Amsinckia menziesii H. E. Parks 1933-03 4282 Humboldt Trinidad. Comment
  UC545822  Amsinckia menziesii var. menziesii H. E. Parks March, 1933 4282 Humboldt Trinidad Comment
  UC175680 Image available Amsinckia spectabilis Joseph P. Tracy 1910-6-5 3152 Humboldt sand dunes of ocean beach at Humboldt Bay; Northern Coast Region; Ocean Beach at Humboldt Bay Comment
  UC582521  Anaphalis margaritacea Joseph P. Tracy Jul 16 1930-Jul 19 1930 9060 Humboldt near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  CAS-BOT-BC45136  Anaphalis margaritacea Doris K. Kildale 1925-8-17 1186 Humboldt Trinity Summit, Elk Horn Camp 1524 Comment
  HSC37663  Anaphalis margaritacea R. Sutherland 1976-8-18 14 .18876 Humboldt 195 Comment
  RSA416575  Anaphalis margaritacea C. B. Wolf 1937-8-13 9213 Humboldt North Coast Range, 9 miles NE of Blue Lake on Lord Ellis Road. 244 Comment
  SD42332  Anaphalis margaritacea Carl B. Wolf 1937-8-13 2910 Humboldt North Coast Range, 9 miles northeast of Blue Lake on Lord Ellis Road. 245 Comment
  SEINET8734419 Image available Anaphalis margaritacea H. E. Parks, S. T. Parks 1943-1 24237 Humboldt Stone Lagoon Comment
  HSC56303  Anemone deltoidea Overton, Butler 1979-8-2 12610 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC63009  Anemone deltoidea M. Dean Griswold Jr. 1979-4-21 24 Humboldt N side of Hwy. 36 Comment
  POM365632  Anemone deltoidea Unspecified s.n. Humboldt [No location data on label] Comment
  SEINET12087980  Anemone deltoidea Unknown 1936-1 13352 Humboldt near Scotia Comment
  HSC98540  Anemone oregana Cara Witte 2008-6-9 705 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1418 Comment
  UC1197332  Angelica lucida Joseph P. Tracy 1941-8-3 16977 Humboldt at w foot of Table Bluff Table Bluff 6 Comment
  HSC56087  Angelica tomentosa G. L. Clifton, Terry Griswold 1979-7-31 11776 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  OBI9037  Angelica tomentosa Tracey Call, Viola Call 1966-8-1 2518 Humboldt 2.5 mi up Three Creek Rd. from Willows 427 Comment
  UC642243  Angelica tomentosa Joseph P. Tracy 1938-9-5 16145 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  SD42569  Angelica tomentosa var. hendersonii Carl B. Wolf 1937-8-11 2910 Humboldt 1/2 mile east of Alton 17 Comment
  SD58268  Angelica tomentosa var. hendersonii W. L. Jepson 1936-8-18 17945 Humboldt 1/2 mile south of Singley Creek, Sand dune by the sea Comment
  CAS-BOT-BC271492  Anisocarpus madioides Doris K. Kildale 1928-5-19 5118 Humboldt Chalk Mountain Comment
  HSC10098  Anthoxanthum occidentale D. E. Anderson 1962-5-10 2205 Humboldt Lanphere Ranch Comment
  SEINET7614635 Image available Anthoxanthum occidentale Richard R. Halse 1996-1 5020 Humboldt Redwood National Park ; At junction of Bald Hills Road and Holter Ridge Bike Route 11 miles southeast of US Highway 101 708 Comment
  HSC8937  Anthoxanthum odoratum S. R. Johnson 1965-4-16 37 Humboldt 1 mi. N of Luffenholtz Beach Comment
  JEPS71148  Anthoxanthum odoratum A. L. Hormay 1932-5-11 48 Humboldt Arcata Comment
  RSA129296  Anthoxanthum odoratum H. S. Yates 1936-6-23 5853 Humboldt 2 miles E. of mouth of Mad River. 30 Comment
  SEINET198594  Anthoxanthum odoratum H. E. Parks, ST Parks 1952-4-30 24444 Humboldt Spruce Cove Trinidad Comment
  UCD56273  Anthoxanthum odoratum Harley P. Chandler 1901-5-1 1106 Humboldt North Coast Ranges, Humboldt Bay. 30 Comment
  UCSB297  Anthoxanthum odoratum Parker, H.; Parks, S. 1952-04 Humboldt Spruce Cove, Trinidad 60 Comment
  HSC78963  Anthriscus caucalis L. P. Janeway, Ken Berg 1984-4-11 722 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  JEPS5352  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1935-10-13 14756 Humboldt Willow Creek; Trinity River Valley 152 Comment
  RSA371546  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-30 360 Humboldt Orleans vicinity. 40 ft. N of the southern junction of Cedar Camp Road and Hwy. 96. 183 Comment
  HSC40265  Aphanes occidentalis Linda M. Barker 1976-4-30 1413 Humboldt 3 mi. W of Arcata Comment
  HSC97622  Apocynum androsaemifolium Cara Witte 2007-6-19 301 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  SD51267  Apocynum androsaemifolium Darley F. Howe 1961-8-2 3117 Humboldt 23.5 miles east of Orick on Bald Mountain Road 915 Comment
  HSC99426  Aquilegia formosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 75 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA46787  Aquilegia formosa Doris Kildale Gillespie 1937-8-12 15265 Humboldt South Fork Mountain. Comment
  HSC18054  Aquilegia formosa var. formosa N. D. Dennis 1965-5-5 47 Humboldt 2 mi. N of Trinidad on Hwy. 101 Comment
  HSC97563  Aquilegia formosa var. formosa Cara Witte 2007-6-1 165 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1355 Comment
  HSC58213  Arabis glabra Walter Overton 1979-8-1 12342 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  OBI33237  Arbutus menziesii David J. Keil 1983-7-1 17263 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  UCD117472  Arbutus menziesii Linda M. Barker 1976-4-30 1405 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC180210  Arctium minus Joseph P. Tracy 1914-10-4 4631 Humboldt Table Bluff Northern Coast, Humboldt Bay 0 Comment
  SEINET11984869  Arctostaphylos canescens Unknown 1965-1 543 Humboldt top of Chimisal Mountain, W of Wailaki Recreation Area, Bureau of Land Management Comment
  CAS-BOT-BC24094  Arctostaphylos canescens subsp. canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast range Horse Mt. 1524 Comment
  RSA47097  Arctostaphylos cinerea Doris K. Kildale 1926-4-4 1721 Humboldt Hulbdt County: Northern end of county at Del Norte line, Bluff between Redwood high & ocean Comment
  BLMAR112  Arctostaphylos columbiana Jennifer Anthony-Wheeler 1995-1-19 112 Humboldt King range, growing in open meadow/clearing for new KR admin site 283 Comment
Read comments
Apr 5 2016
  CAS-BOT-BC23739  Arctostaphylos columbiana C. Hart Merriam 1921-8-18 s.n. Humboldt Big Lagoon Comment
  CAS-BOT-BC23791  Arctostaphylos columbiana C. Hart Merriam 1921-8-16 s.n. Humboldt Near summit of Berry Mountain, between Willow Creek and Arcata. Comment
  CAS-BOT-BC23824  Arctostaphylos columbiana Doris K. Kildale 1927-6-25 3583 Humboldt Near Ettersburg Comment
  HSC39054  Arctostaphylos columbiana Linda M. Barker 1976-2-22 1319 Humboldt 3 mi. W of Arcata Comment
  JEPS38616  Arctostaphylos columbiana Lincoln Constance 1934-5-24 638 Humboldt bordering on e side lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  UCD50695  Arctostaphylos columbiana Lincoln Constance 1934-5-24 638 Humboldt Bordering lower Look Prairie on E. side. 121 Comment
  UCD50770  Arctostaphylos columbiana H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's point. Comment
  RSA24083  Arctostaphylos columbiana var. columbiana C. B. Wolf 1941-3-3 4072 Humboldt 4 mi. N. of Ettersburg on Rd. to Honeydew. 305 Comment
  UCD51010  Arctostaphylos glandulosa Lincoln Constance 1984-6-15 886 Humboldt Summit of Grasshopper Peak. 975 Comment
  UC1120196  Arctostaphylos glandulosa subsp. glandulosa G. T. Nordstrom Jul 1937 1427 Humboldt 10.5 mi ene Orick; Orick Quadrangle Comment
  CAS-BOT-BC39132  Arctostaphylos hispidula Doris K. Kildale; L. B. Kildale 1930-5-11 9529 Humboldt Bald Hills - Wiregrass Prairie 792 Comment
  JEPS38942  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1934-3-11 13154 Humboldt French Camp Ridge Comment
  CAS-BOT-BC38831  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-6-27 2198 Humboldt Sweasey Lake - McClellan Mountain 792 Comment
  SEINET11989089  Arctostaphylos nevadensis subsp. knightii R. Gankin, Hildreth, W. R. 1967-1 1172 Humboldt 21.4 mi E of US 101 on Bald Hills Rd from Orick, French Camp Ridge Comment
  HSC40857  Arctostaphylos patula Thomas W. Nelson 1976-7-9 2990 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  UC32689  Arctostaphylos patula J. Burtt Davy 1899-6-21 5752 Humboldt slopes of Trinity Summit North Coast Ranges 1219 Comment
  CAS-BOT-BC46795  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  HSC90240  Arctostaphylos uva-ursi L. Watson, J. Meninga Mar 1991 12 Humboldt Near Manilla. Mad River Slough and Dunes. N of parking lot, W of trail Comment
  HSC59030  Arctostaphylos viscida M. A. Baker 1979-6-7 795 Humboldt NE slope of Telescope Peak 1189 Comment
  HSC76329  Arctostaphylos viscida Teresa Prendusi 1981-7-9 208 Humboldt Near Cedar Camp 1268 Comment
  CHSC79650  Arctotheca calendula Gordon Leppig 2000-4-9 1288 Humboldt Arcata. Union St. at 7th St. South of Phillips House. UTM zone 10, 4525N, 409E. 24 Comment
  CAS-BOT-BC526231  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt Larry Pries dairy, 3.4 mi W of Main St., on Centerville Beach Rd, Ferndale Comment
  UC668126  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 c Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  HSC33756  Armeria maritima subsp. californica A. Montalvo 1975-5-24 268 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UCSB15631  Armeria maritima subsp. californica Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa; on peninsula on western side of Humboldt Bay Comment
  HSC74646  Arnica cordifolia M. A. Baker 1980-5-17 1215 Humboldt Near Le Perron Peak 792 Comment
  CAS-BOT-BC82648  Arnica latifolia Doris K. Kildale 1926-4-25 1808 Humboldt Sugar Bowl Mountain on old road [frm.] from Willow Creek to Hoopa Comment
  HSC8986  Arrhenatherum elatius W. F. Cartwright 1965-5-20 79 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  SEINET10473422  Artemisia Mary Susan Taylor 1990-8-22 Taylor 6078 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  UC153943  Artemisia douglasiana Joseph P. Tracy 1910-9-25 3160 Humboldt on Humboldt Bay 0 Comment
  CAS-BOT-BC93859  Artemisia dracunculus Doris K. Kildale 1926-8-8 2473 Humboldt Dyerville Bidge, river bar 45 Comment
  UC1222995  Artemisia dracunculus Joseph P. Tracy 1950-8-20 19325 Humboldt 8 mi below Orleans (at Big Bar); Klamath River near Snake Creek 121 Comment
  UCD129341  Artemisia pycnocephala Linda M. Barker 1976-7-5 1633 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC665565  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  HSC56131  Aruncus dioicus var. acuminatus G. L. Clifton, Griswold 1979-8-1 11947 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  JEPS45625  Aruncus dioicus var. pubescens Joseph P. Tracy 1916-6-25 4749 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  CAS-BOT-BC453341  Aruncus dioicus var. vulgaris Doris K. Kildale 1926-7-3 3663 Humboldt Willow Creek Flat under bridge Comment
  CAS-BOT-BC453346  Aruncus dioicus var. vulgaris Lester Rowntree 1937-8-6 s.n. Humboldt Maple Creek, east of Eureka Comment
  HSC41836  Asarum caudatum Tom Duebendorfer 1977-4-23 10 Humboldt 2.5 mi S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC44110  Asarum caudatum Barbara Kelly 1977-4-23 307 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UC6169  Asarum caudatum Harley P. Chandler May 1901 1267 Humboldt Redwood Belt 457 Comment
  CAS-BOT-BC400620  Asarum hartwegii Harley P. Chandler 1901-6-1 1478 Humboldt North Coast Ranges, Klamath River 396 Comment
  RSA46489  Asclepias cordifolia Doris K. Kildale 1926-5-2 s.n. Humboldt Willow Creek Comment
  UC1197608  Asclepias eriocarpa Joseph P. Tracy 1932-9-3 10764 Humboldt Alton to Fortuna; Eel River 15 Comment
  CAS-BOT-BC65943  Aspidotis densa L. B. Kildale 1930-6-1 9764 Humboldt Klamath River at Bluff Creek Comment
  HSC55067  Aspidotis densa G. L. Clifton, Griswold 1979-7-31 11647 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UCD137283  Aspidotis densa Frederic Hrusa 1993-6-17 11223 Humboldt Red mountain, at entrance gate to Red Mt. 900 Comment
  CDA30679  Aster chilensis M. K. Beyers, I. Shepardson 2009-9-13 252 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
  RSA18141  Aster chilensis C. B. Wolf 1927-8-22 808 Humboldt 1 mile south of Orick. Comment
  CAS-BOT-BC27578  Astragalus agnicidus Henry Tosten 1931-6-7 s.n. Humboldt 4 miles S of Miranda Comment
  JEPS16848  Astragalus agnicidus H. Tosten 1931-6-7 Humboldt Tosten & Pierce Ranch, near Bear Buttes, S of Miranda, Humboldt Co. Comment
  SEINET880898 Image available Astragalus agnicidus Henry Tosten 1931-1 s.n. Humboldt Near Bear Buttes, 4 mi south of Miranda; local on Tosten and Pierce Ranch. 762 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
  BLMAR220  Astragalus nuttallii Jennifer Anthony-Wheeler 1996-7-26 220 Humboldt King range, growing in open, coastal bluff 10ft W. of windy pt 91 Comment
  UC1199092  Astragalus pycnostachyus var. pycnostachyus Joseph P. Tracy 1930-7-21 8891 Humboldt 3 mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, s Cape Mendocino 3 Comment
  UC495726  Astragalus rattanii var. rattanii Joseph P. Tracy 1932-6-19 10245 Humboldt nw slope of Buck Mountain Buck Mountain (lower foothills); Northern Coast Ranges, Buck Mountain 762 Comment
  HSC103507  Astragalus umbraticus Thomas W. Nelson, Jane Nelson 1987-6-11 8526 Humboldt Along Forest Service Rd. 13N01, 9 mi. from junction with State Route 96 762 Comment
  SBBG69571  Asyneuma prenanthoides S. W. Hutchinson -Jun-1925 93 Humboldt Redwood Hwy 243 Comment
  RSA46703  Athyrium filix-femina subsp. cyclosorum Doris K. Kildale 1928-12-29 6762 Humboldt Stevens Grove Comment
  HSC70826  Athyrium filix-femina var. cyclosorum M. A. Baker 1980-6-7 1818 Humboldt Near Ammon Creek 732 Comment
  JEPS35139  Athyrium filix-femina var. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt hill above Weott Comment
  UC1239778  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1923-8-7 6534 Humboldt Strong's Station; Northern Coast Ranges 60 Comment
  UC1222661  Athysanus pusillus Joseph P. Tracy 1950-4-20 18610 Humboldt 1/2 mi w of Dinsmore's (along Van Duzen River, opposite Buck Mountain); Van Duzen River 762 Comment
  HSC4345  Atriplex leucophylla Jerry Parker 1968-10-26 206 Humboldt Driftline 0.5 mi. S of Big Lagoon. Comment
  HSC26349  Atriplex patula T. O. Osborne 1970-6-19 74 Humboldt Flat-Iron Rock, 3/4 mi. NW Trinidad Light. Comment
  CDA23297  Atriplex patula var. obtusa Gordon Leppig 1999-10-25 1266 Humboldt Eureka, PALCO Marsh Comment
  CDA15325  Atriplex prostrata R. Spadoni 1998-10-5 s.n. Humboldt North Coast; Near Loleta. Comment
  UCD56151  Avena barbata A. H. Murphy 1951-2-28 5 Humboldt South of Petrolia. Comment
  OBI78649  Baccharis pilularis Bresa Martin 2013-11-11 1 Humboldt On a small paved path leading out of Humboldt State University behind the Cypress Apartments. Halfway between the light posts labeled "312" and "313". Growing just outside the chain link fence. 30 Comment
  POM41974  Baccharis pilularis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC90230  Baccharis pilularis subsp. consanguinea L. Watson, J. Meninga Aug 1990 3 Humboldt Near Manilla. Mad River Slough and Dunes, 50 ft. from parking lot, E of trail Comment
  HSC89419  Baccharis pilularis subsp. pilularis P. A. Daly 1986-2-28 58 Humboldt Trinidad Head 61 Comment
  SEINET7003036  Baeria chrysostoma Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC175209  Balsamorhiza deltoidea Joseph P. Tracy 1913-6-17 4175 Humboldt near the summit Buck Mountain; Northern Coast Ranges 1524 Comment
  UCD129526  Balsamorhiza deltoidea James P. Smith 1973-5-5 6416 Humboldt along Cook and Green Pass road. Comment
  HSC28271  Barbarea verna Thomas W. Nelson 1971-4-12 372 Humboldt Beside Hwy. 101 at the Hookton Rd. junction Comment
  CDA6267  Bellardia trixago T. R. Haig 1960-6-15 4575 Humboldt 8 miles north of Trinidad. 0 Comment
  SEINET5707799 Image available Bellis perennis Suzanne E. May 1967-1 34 Humboldt On State Highway 36, 1 mile west of Bridgeville.; Bridgeville 183 Comment
  CAS-BOT-BC48160  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3416 Humboldt Bald Mountain ridge - Under forest at edge of Snow Camp Meadow, near base of Snow Camp Mt., at head of high long ridge 1432 Comment
  UC1051579  Bensoniella oregona Joseph P. Tracy 1923-6-24 6363 Humboldt Bald Mountain in meadow near High Prairie; Northern Coast Ranges, Bald Mountain, nr High Prairie 1066 Comment
  BLMAR689  Berberis aquifolium Jennifer Wheeler 2012-5-9 689 Humboldt Lacks Creek, West side on Barnum 762 Comment
  HSC24105  Berberis aquifolium var. repens J. O. Sawyer 1971-6-17 2388 Humboldt Along trail slopes above Horse Linto Creek 1341 Comment
  OBI33907  Berberis pinnata subsp. pinnata David J. Keil 1983-7-2 17320 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mtn Summit Rd Comment
  HSC102084  Bistorta bistortoides M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 988 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC98997  Blechnum spicant Cara Witte 2008-7-28 959 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1641 Comment
  UC562687  Boechera retrofracta Joseph P. Tracy 1935-7-30 14379 Humboldt Salmon Summit 2103 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
  HSC93472  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1998-6-25 851 Humboldt Hwy. 101 marker 81.60, brackish ditch on E side of Hwy. 2 Comment
  HSC74466  Boschniakia strobilacea M. A. Baker 1980-5-17 1200 Humboldt Near Le Perron Peak 792 Comment
  JEPS13526  Boschniakia strobilacea W. L. Jepson 1902-7-16 2052 Humboldt Trinity Summit. 2133 Comment
  HSC44566  Boschniakia strobilacea R. York 1978-5-18 173 Humboldt Near Bluff Creek Trail 671 Comment
  CAS-BOT-BC420275  Boykinia occidentalis Doris K. Kildale 1926-6-6 2117 Humboldt trail to Gold Bluffs Comment
  CDA14234  Brassica rapa R. Spadoni 1998-5-11 s.n. Humboldt Hwy 299 near Blue Lake. 0 Comment
  SEINET10468010  Briza maxima Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2503 Humboldt Collected in the vicinity of a state park on the beach opposite McKinleyville. Vast colony of yellow Lupinus arboreus. 3 Comment
  CAS-BOT-BC145570  Briza minor Doris K. Kildale 1925-6-28 916 Humboldt Fleener Creek. Comment
  JEPS517  Brodiaea elegans subsp. elegans Joseph P. Tracy 1936-8-2 15067 Humboldt French Camp Ridge 1066 Comment
  UCSB19699  Brodiaea elegans subsp. elegans Myrick, Donald 1964-7-26 Humboldt State Highway 299, 15 mi E of Arcata 762 Comment
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Feb 16 2009
  HSC35816  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1920 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  HSC81940  Brodiaea terrestris subsp. terrestris D. H. Norris 1985-5-30 Humboldt Near Whitethorn Comment
  SEINET201049 Image available Bromus carinatus var. carinatus Joseph P. Tracy 1925-7-5 7162 Humboldt High Prairie on Bald Mountain 1067 Comment
  UC1145186  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-31 5332 Humboldt Wolverton Gulch near Hydesville; Wolverton Gulch 91 Comment
  UC1152025  Bromus carinatus var. carinatus Joseph P. Tracy 1951-6-26 19570 Humboldt vicinity of Twin Lakes (Snow Camp and Twin Lakes trip) Comment
  UC184919  Bromus carinatus var. carinatus Joseph P. Tracy 1912-6-9 3654 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UCD58449  Bromus commutatus Joseph P. Tracy 1942-6-15 17130 Humboldt Englewood. 91 Comment
  HSC102946  Bromus diandrus J. P. Smith 2009-5-30 12599 Humboldt Arcata. Near intersection of Valley West and Giuntoli Road Comment
  HSC35281  Bromus diandrus J. D. Ackerman, A. M. Montalvo 1975-6-22 491 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  HSC9287  Bromus diandrus R. D. Modafferi 1965-5-9 52 Humboldt 0.2 mi. N of Trinidad on Trinity St. 305 Comment
  HSC9247  Bromus hordeaceus J. R. Eichelberger 1964-5-13 80 Humboldt 1/4 mi. from U.S. 101 on the N side of the Mad River. Comment
  HSC102947  Bromus hordeaceus J. P. Smith Jun 2009 12600 Humboldt Arcata. Lawn weed Comment
  CAS-BOT-BC162213  Bromus orcuttianus Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain. 1524 Comment
  UCD59657  Bromus secalinus var. velutinus G. T. Bateham 1921-8-7 s.n. Humboldt Showers Pass. Comment
  RSA126835  Bromus sterilis H. S. Yates 1936-5-17 5714 Humboldt Near Burr valley; South Fork Pk. 915 Comment
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Apr 6 2017
  UC526730  Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Northern Coast Ranges, Larrabee Valley Larrabee Valley; Northern Coast Ranges, Larrabee Valley 701 Comment
  CAS-BOT-BC185516  Bromus vulgaris Harley P. Chandler 1901-5-1 1177 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  UC1145187  Bromus vulgaris Joseph P. Tracy 1949-6-20 18317 Humboldt 6 mi se of Arcata (Fickle Hill); Fickle Hill 609 Comment
  HSC57627  Cacaliopsis nardosmia G. L. Clifton, Griswold 1979-7-25 10766 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC40408  Cakile maritima Linda M. Barker 1976-6-22 1627 Humboldt 3 mi. W of Arcata Comment
  UC1103289  Calamagrostis canadensis Joseph P. Tracy 1935-7-27 14290 Humboldt McKay Prairie Trinity Summit (along creek) 1584 Comment
  UC526777  Calamagrostis koelerioides Joseph P. Tracy 1926-6-20 7635 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  UCD57537  Calamagrostis ophitidis R. Tofsrud 1948-9-3 s.n. Humboldt 3-4 miles south of Berry's Summit at road junction near summit of Horse Mountain. 1463 Comment
  CAS-BOT-BC438312  Calandrinia ciliata Doris K. Kildale 1926-5-2 1887 Humboldt Horse Mountain cut-off on Willow Creek road. 792 Comment
  UC1198378  Calandrinia ciliata Joseph P. Tracy 1909-5-30 2979 Humboldt along railroad in Ryan's Slough; Northern Coast Region, Region about Humboldt Bay 0 Comment
  HSC100897  Calandrinia pygmaea Carl C. Marshall Jun 1886 318 Humboldt Trinity Summit. Comment
  UCR199655  Callitriche heterophylla subsp. bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35345 Humboldt Northwestern; Outer North Coastal region, along Hwy 101 about 3 miles N of Eureka 2 Comment
  RSA729025  Callitriche heterophylla var. bolanderi R. F. Thorne, P. C. Everett 1965-8-9 35323 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC275510  Calocedrus decurrens Joseph P. Tracy 1924-8-31 6847 Humboldt Klamath River at Bluff Creek Northern Coast Ranges, Klamath River, Bluff Creek 91 Comment
  SEINET4169777  Calochortus catalinae Unknown 1932-7-12 Humboldt Trinity Summit Comment
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Sep 18 2015
  SEINET4169781  Calochortus catalinae Unknown 1935-7-14 Humboldt Clear Lake 1524 Comment
  JEPS17771  Calochortus coeruleus W. L. Jepson Jul 16 1902-Jul 23 1902 2035 Humboldt Trinity Summit 2133 Comment
  UC1197682  Calochortus coeruleus Joseph P. Tracy 1932-7-15 10582 Humboldt e of Corral Prairie; Trinity Summit 1828 Comment
  HSC31756  Calochortus tolmiei Timothy B. Devine 1974-5-4 322 Humboldt Bank of Chezem Rd. at junction of Hwy. 299 457 Comment
  HSC74349  Calochortus tolmiei Gail Newton 1980-6-28 748 Humboldt Near Mad River Butte. 1536 Comment
  HSC34875  Calochortus tolmiei Thomas W. Nelson, James Nelson 1975-5-5 1779 Humboldt Beside Hwy. 101, ~ 4 mi. S of the Salmon Creek Bridge Comment
  UC1222549  Calochortus tolmiei Joseph P. Tracy 1951-5-6 19394 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  UC34627  Calycadenia fremontii Chesnut and Drew 1888-7-24 Humboldt Hy-Am-Pim Comment
  JEPS39006  Calycadenia truncata J. P. Tracy 1911-7-5 3334 Humboldt Willow Creek Trinity River, Willow Creek 152 Comment
  HSC16565  Calypso bulbosa Eldrid H. Spinas 1948-6-16 70 Humboldt Horse Mtn. Comment
  HSC39966  Calypso bulbosa Linda M. Barker 1976-3-22 1347 Humboldt 3 mi. W of Arcata Comment
  RSA381907  Calypso bulbosa Pearl Ryan 1917-6-1 s.n Humboldt Hoopa Comment
  RSA381906  Calypso bulbosa Grinnell 1917-6-6 s.n. Humboldt Hoopa Indian Reservation Comment
  UC1196479  Calypso bulbosa Joseph P. Tracy 1913-6-25 4342 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC55120  Calyptridium monospermum Gilbert Muth 1979-8-1 11899 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC70228  Calyptridium monospermum M. A. Baker 1980-6-8 1891 Humboldt Near Buck Flat. 1554 Comment
  HSC97957  Calystegia occidentalis subsp. occidentalis Cara Witte, Michael Scott 2007-6-22 350 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  UC1197883  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1926-5-9 7454 Humboldt near Bridgeville; near Bridgeville 457 Comment
  CDA39889  Calystegia silvatica subsp. disjuncta Thomas Nelson 1976-8-1 3166 Humboldt At the intersection of 11th and B Streets, Arcata. 0 Comment
  CHSC68781  Calystegia soldanella Vernon Oswald 1997-6-5 8533 Humboldt North Spit of Humboldt Bay, the west side of New Navy Base Rd. 1.0 mi south of Hwy 255. 6 Comment
  UC198628  Calystegia soldanella Joseph P. Tracy 1917-5-30 4803 Humboldt sand dunes near Little River; Northern Coast Ranges, near Little River 6 Comment
  UC1046537  Camassia quamash R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3419 Humboldt Ridge between Mad River and Redwood Creek (Bald Mountain, at Snow Camp); Bald Mountain, Snow Camp 1432 Comment
  HSC15437  Camassia quamash subsp. linearis Gerald T. Rood 1962-5-6 17 Humboldt Kneeland Road ca. 1 mi. W of Barry Rd. Comment
  UCR122368  Camissonia cheiranthifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7021 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC45467  Camissonia cheiranthifolia subsp. cheiranthifolia Thomas W. Nelson, James Nelson 1978-9-28 4554 Humboldt NW of Samoa Comment
  POM271978  Camissonia cheiranthifolia subsp. cheiranthifolia Lyman Benson 1928-7-10 440 Humboldt Clam Beach, Trinidad. 11 Comment
  UC1196947  Camissonia contorta Joseph P. Tracy 1939-4-29 16244 Humboldt mouth of Slate Cr. Klamath River 121 Comment
  JEPS11742  Campanula prenanthoides W. L. Jepson 1932-7-24 16383 Humboldt Fruitland Comment
  SEINET10462989  Campanula prenanthoides Tracy 1935-7-25 TRACY 14248 Humboldt Trinity Summit, wooded hillsides, lower end of Brett Hole 1585 Comment
  SEINET10463114  Campanula prenanthoides Willis L. Jepson 1932-7-26 Jepson 16413 Humboldt BULL CREEK Comment
  SEINET10463252  Campanula prenanthoides Tucker 1948-9-3 TUCKER 1859 Humboldt Road bank, Friday Ridge Road, just below Black Rock (junction of Friday Ridge Road and the Horse Mountain-Grouse Mountain road) Comment
  SEINET10905895  Campanula prenanthoides Aven Nelson, Ruth A. Nelson 1977-7-30 Nelson 3662 Humboldt In dry oak woodland beside State Route 36 about 1 mile east of Dinsmore. T1N R5E SEC.3 732 Comment
  HSC63287  Campanula scouleri M. A. Baker 1979-6-29 956 Humboldt Hopkin's Creek. 760 Comment
  RSA456189  Campanula scouleri M. S. Baker 1947-8-10 11901 Humboldt 15 mi n.e. of Stoopa Pass. near end of forest road in Fir Forest. 1372 Comment
  HSC44638  Capsella bursa-pastoris Diane L. Reed 1978-5-7 67 Humboldt E fork of Willow Creek, 34 mi. from Hwy. 101 on Hwy. 299 Comment
  UC302119  Cardamine angulata Joseph P. Tracy 1926-5-22 7510 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  UC203897  Cardamine breweri Joseph P. Tracy 1918-4-28 4891 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC37251  Cardamine breweri Joseph P. Tracy 1906-4-29 2432 Humboldt Northern Coast Region. Region about Humboldt Bay. South slope of Humboldt Hill. 152 Comment
  HSC33178  Cardamine californica Thomas W. Nelson 1974-4-20 1184 Humboldt At Elk Head, N of Trinidad Comment
  HSC36515  Cardamine californica J. D. Ackerman, A. M. Montalvo 1973-4-29 50 Humboldt 3 mi. E of Kneeland on road to Maple Creek 457 Comment
  HSC89491  Cardamine californica P. A. Daly 1986-2-28 61 Humboldt Trinidad Head, along trail 61 Comment
  RSA734791  Cardamine californica var. cardiophylla LeRoy E. Detling 1935-4-20 1642 Humboldt Lansdale Grove of Redwoods. Comment
  UC1222655  Cardamine californica var. sinuata Joseph P. Tracy 1950-5-7 18651 Humboldt on the Redwood House Road 1 mi s Redwood House (on Yager Slope, head of South Yager Creek); head of South Yager Creek, on Yager Slope Comment
  HSC40428  Cardamine oligosperma Linda M. Barker 1976-3-11 1325 Humboldt 3 mi. W of Arcata Comment
  HSC64793  Cardamine oligosperma J. P. Smith 1971-10-9 5015 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC1222954  Carduus tenuiflorus Joseph P. Tracy 1942-6-28 17266 Humboldt toward Hungry Hollow Angel's Ranch; Bald Mountain, Hungry Hollow Comment
  RSA34051  Carex angustata A. A. Heller 1923-7-10 s.n. Humboldt Eel River between Scotia and Pepperwood. Comment
  UC249756  Carex aquatilis var. dives Joseph P. Tracy 1924-7-4 6704 Humboldt Snow Camp Northern Coast Ranges, Snow Camp 1371 Comment
  UC562253  Carex aquatilis var. dives Joseph P. Tracy 1935-6-8 13948 Humboldt along coast in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 6 Comment
  UC1586919  Carex arcta Juha Pykala and D. H. Norris 1987-6-5 1360 Humboldt e Maple Creek (se of Snow Camp Mountain, upper course of Redwood Creek); Redwood Creek 1100 Comment
  CAS-BOT-BC19440  Carex bolanderi Alice Eastwood; John Thomas Howell 1937-6-23 4779 Humboldt Near Dinsmores. Comment
  HSC70465  Carex bolanderi Gail Newton 1980-7-20 1629 Humboldt Near Bell Swamps 1426 Comment
  RSA754380  Carex bolanderi P. F. Zika 2009-6-15 24487 Humboldt S bank of Mad River, near Hatchery Road, S of town of Blue Lake 20 Comment
  HSC43238  Carex bolanderi R. Sutherland 1977-4-5 5477 Humboldt 386 Comment
  CAS-BOT-BC19611  Carex brainerdii Joseph Prince Tracy 1935-7-30 14350 Humboldt Salmon Summit. On ridge 2 miles southwest of top. 1767 Comment
  POM247168  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt 2 miles SW of top, Salmon Summit. 1768 Comment
  CHSC40174  Carex concinnoides Lawrence Janeway 1982-6-20 13 Humboldt On ne facing slope near ridgetop ca 1 mi se of Horse Mtn along rd 6N36. 1383 Comment
  JEPS79838  Carex concinnoides Joseph P. Tracy 1926-5-2 7447 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  CAS-BOT-BC34379  Carex cusickii Joseph Prince Tracy 1938-7-6 16023 Humboldt Big Lagoon. 6 Comment
  BLMAR357  Carex cusickii Jennifer Anthony-Wheeler 2003-7-23 357 Humboldt Headwaters Forest Reserve, growing in natural pond with large floating rafts of logs 426 Comment
  CAS-BOT-BC34437  Carex deflexa var. boottii Joseph Prince Tracy 1935-6-2 13921 Humboldt Big Lagoon. 30 Comment
  CAS-BOT-BC34984  Carex densa Alice Eastwood; John Thomas Howell 1937-6-22 4735 Humboldt Near Alder Point. Comment
  UC562262  Carex densa Joseph P. Tracy 1927-5-30 8095 Humboldt vicinity of Garberville 121 Comment
  CHSC90287  Carex echinata subsp. echinata Thomas W. Nelson; Jane P. Nelson 1987-6-11 8602 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  UC562717  Carex globosa Joseph P. Tracy 1936-6-9 14911 Humboldt on the Bull Creek to Mattole road North Coast Ranges, Upper Mattole 457 Comment
  CHSC48077  Carex harfordii L. P. Janeway 1983-5-15 297 Humboldt In riparian bend of Mad River on S side, near Fish Hatchery Rd and across river from Blue Lake. 24 Comment
  UC1103579  Carex harfordii Joseph P. Tracy 1912-7-25 3818 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC76807  Carex harfordii L. P. Janeway 1982-6-17 10 Humboldt 305 Comment
  UCR66610  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek at the South Fork of the Eel River 50 Comment
  UC1152061  Carex hendersonii Joseph P. Tracy 1948-6-13 18042 Humboldt halfway between Bridgeville and Blocksburg; Larrabee Creek Comment
  CAS-BOT-BC28162  Carex hoodii Joseph Prince Tracy 1937-6-27 15377 Humboldt Along Four-Mile Creek, South Fork of Trinity River, mountain slopes W of its mouth. Comment
  CAS-BOT-BC7791  Carex laeviculmis Doris K. Kildale 1931-5-10 10674 Humboldt Snow Camp Comment
  CHSC90286  Carex laeviculmis Thomas W. Nelson; Jane P. Nelson 1987-6-11 8587 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  HSC102152  Carex laeviculmis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1059 Humboldt Patterson Meadows 1555 Comment
  UC562428  Carex laeviculmis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8995 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  CHSC90274  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8598 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  RSA246648  Carex lenticularis var. limnophila Robert F. Thorne 1965-9-19 35461 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  HSC103140  Carex lenticularis var. lipocarpa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1060 Humboldt Patterson Meadows 1555 Comment
  SEINET11631529  Carex lenticularis var. lipocarpa J. P. Tracy 1950-1 19266 Humboldt Box Camp, Trinity Summit 1524 Comment
  HSC7139  Carex leptalea B. D. Rogers 1965-10-2 1021 Humboldt Big Lagoon 0 Comment
  RSA22169  Carex leptopoda Joseph P. Tracy 1937-6-20 15353 Humboldt Bear river, ten miles up stream from the mouth 152 Comment
  CAS-BOT-BC31584  Carex luzulina var. luzulina Joseph Prince Tracy 1930-7-16 8987 Humboldt South Fork Mountain, in wet meadow at McKay Camp. 1676 Comment
  UC1115806  Carex luzulina var. luzulina Joseph P. Tracy 1937-7-9 16341 Humboldt Snow Camp 1402 Comment
  UC1152083  Carex luzulina var. luzulina Joseph P. Tracy 1951-6-14 19410 Humboldt Snow Camp Comment
  JEPS101126  Carex mendocinensis Dean W. Taylor 1991-8-15 12296 Humboldt ridge 1 mile West of Horse Mountain 1493 Comment
  UC204898  Carex mendocinensis Joseph P. Tracy 1911-7-6 3343 Humboldt Northern Costa Ranges. Mountains slopes along road between Three Creeks and mouth of Willow Creek. Comment
  RSA0014503  Carex mendocinensis Joseph P. Tracy 1926-6-6 7576 Humboldt Hoopa Mountain. On road west from Hoopa Valley. 915 Comment
  HSC102161  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1071 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC32130  Carex multicaulis Joseph Prince Tracy 1933-7-11 12662 Humboldt Horse Mountain. 1432 Comment
  HSC73962  Carex multicaulis Gail Newton 1980-6-7 126 Humboldt Near Brush Mtn. 1128 Comment
  UC562265  Carex neurophora Joseph P. Tracy 1935-7-23 14143 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  HSC37945  Carex obnupta P. D. Sorensen 1976-6-12 Humboldt Humboldt Bay, Woodley Island Comment
  HSC37833  Carex obnupta Thomas W. Nelson 1976-3-4 2263 Humboldt Eureka, beside Buhne St. between S St. and Harrison Ave. Comment
  UCD140712  Carex obnupta L. P. Janeway; B. Castro 2004-9-10 8319 Humboldt North Coast. South Spit of Humboldt Bay, 3.6 km north-northeast of Table Bluff Lighthouse site; between South Spit Road and the Humboldt Bay mudflats. 2 Comment
  SEINET3905665  Carex oederi H. E. Parks 1935-1 5214 Humboldt In center of Dry Lagoon, south of Orick.; 0 Comment
  HSC48138  Carex ovalis D. H. Norris 1971-7-17 19601 Humboldt Along Redwood House Rd., about 3 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  UC562553  Carex ovalis Joseph P. Tracy 1936-6-28 15012 Humboldt near Murphy Meadow; Bald Mt. 914 Comment
  HSC98595  Carex pachystachya Cara Witte 2008-8-6 1017 Humboldt Intersection of Forest Service Road 4E27 and National Forest 1. South of trail to Board Camp Butte. 1479 Comment
  HSC98951  Carex pachystachya Cara Witte 2008-7-11 878 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC1103095  Carex pachystachya Joseph P. Tracy 1934-7-12 13374 Humboldt e Big Lagoon 3 Comment
  UC1115814  Carex preslii Joseph P. Tracy 1938-6-9 15878 Humboldt Dobbyn Creek 152 Comment
  UC1152080  Carex serratodens Joseph P. Tracy 1950-6-25 18893 Humboldt near Sproston Place (on the road to the Albee Place, 3 mi s of Burr Valley); Buck Mountain 1158 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
  JEPS75415  Carex tumulicola W. L. Jepson 1932-7-26 16415 Humboldt Bull Creek 106 Comment
  RSA91642  Carex tumulicola Alice Eastwood, John Thomas Howell 1937-6-23 4758 Humboldt Dinsmore s. Comment
  UC1103610  Carex utriculata Joseph P. Tracy 1937-8-12 15636 Humboldt Snow Camp 1402 Comment
  UC1103613  Carex vesicaria var. major Joseph P. Tracy 1923-9-2 6542 Humboldt Mc Clellan Mt. Northern Coast Ranges 914 Comment
  HSC96343  Carex viridula subsp. viridula Gordon Leppig 1999-10-3 1258 Humboldt Big Lagoon Bog, Big Lagoon County Park, N end of fen 3 Comment
  HSC2871  Carpobrotus chilensis D. B. Mitchell 1965-5-21 71 Humboldt 1/2 mi. N of U.S. Coast Guard Station on Samoa Rd. Comment
  CAS-BOT-BC249132  Castilleja affinis Alice Eastwood; John Thomas Howell 1937-6-23 4837 Humboldt 11 miles from Kneeland on road to Yager Comment
  HSC20571  Castilleja affinis subsp. litoralis R. E. Hafenfeld 1965-5-9 29 Humboldt 1/2 mi. S of Squashan Cr. Jct. Gold Bluff Beach Rd. Comment
  UC1196864  Castilleja affinis subsp. litoralis J. P. Tracy 1901-5-12 1084 Humboldt immediate vicinity Eureka 0 Comment
  HSC36100  Castilleja ambigua subsp. humboldtiensis Tom Mills 1974-5-12 Humboldt Beside Humboldt Bay near Bayside Cut-off Comment
  HSC49512  Castilleja ambigua subsp. humboldtiensis R. York 1979-5-18 299 Humboldt Around Humboldt Bay Comment
  JEPS26223  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1909-9-19 3100 Humboldt Samoa North Coast Region, Humboldt Bay Region 0 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
  BLMAR161  Castilleja applegatei subsp. pinetorum Donald Hazlett 1994-6-7 161 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC46970  Castilleja exserta subsp. latifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9210 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC47062  Castilleja exserta subsp. latifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9199 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  HSC55840  Castilleja miniata G. L. Clifton, Griswold 1979-7-25 10790 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC31218  Castilleja pruinosa D. E. Anderson 1972-6-20 5731 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC56416  Castilleja rubicundula subsp. lithospermoides Griswold, Butler 1979-7-11 7070 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC176440  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1913-6-19 4213 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC26525  Castilleja subinclusa subsp. franciscana unknown 4815 Humboldt near Little River Comment
  HSC41255  Ceanothus arcuatus Brad Klipfel 1974-6-25 445 Humboldt Horse Mtn. Comment
  CAS-BOT-BC48529  Ceanothus cordulatus Doris Kildale Gillespie 1931-6-7 10618 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  HSC97479  Ceanothus cordulatus Cara Witte 2007-5-29 135 Humboldt Along National Forest 1 on Kinsey Ridge. 1278 Comment
  UC1193335  Ceanothus cordulatus P. Zinke 1950-10-9 77 Humboldt King Peak King Peak Quad. 28D1 1280 Comment
  UC249581  Ceanothus cuneatus var. cuneatus Joseph P. Tracy 1922-4-30 5998 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC49654  Ceanothus foliosus var. foliosus M. S. Jussel 1931-5-2 104 Humboldt Garberville Comment
  UC668165  Ceanothus incanus Joseph P. Tracy 1935-5-25 13824 Humboldt Larrabee Creek; near Bosworth's 304 Comment
  CAS-BOT-BC50050  Ceanothus incanus Doris K. Kildale 1927-6-25 3579 Humboldt at Thorn near schoolhouse road Comment
  CAS-BOT-BC63681  Ceanothus integerrimus L. B. Kildale 1928-5-19 5138 Humboldt Chalk Mountain. Comment
  JEPS42112  Ceanothus integerrimus Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  UCR270274  Ceanothus integerrimus John F. Emmel 2003-7-30 1800 Humboldt near southeast boundary of Redwood National Park, Bald Hills Road, 19.5 road miles SE of Hwy 101 960 Comment
  UC275287  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1924-5-11 6675 Humboldt Bull Creek Northern Coast Ranges 121 Comment
  CAS-BOT-BC51211  Ceanothus parryi Carl B. Wolf 1941-7-27 11086 Humboldt N. Coast Ranges, 5.8 mi. W. Maple Creek on Rd. Freshwater 609 Comment
  CAS-BOT-BC51224  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  JEPS42371  Ceanothus parryi W. L. Jepson 1902-6-20 1906 Humboldt s Camp Grant (Hubbard's Station) 243 Comment
  SEINET12211458  Ceanothus pumilus Unknown 1986-1 60171 Humboldt At the Trinity Co. line: The Lassics, betw. Red Lassic and Lassic peaks 1768 Comment
  CAS-BOT-BC52218  Ceanothus thyrsiflorus Doris K. Kildale 1926-8-29 2598 Humboldt Blue Slide on the Van Duzen River Comment
  CAS-BOT-BC52986  Ceanothus thyrsiflorus L. R. Abrams 1916-7-11 6052 Humboldt Mouth of Grizzly Creek on Van Duzor River Comment
  CAS-BOT-BC52994  Ceanothus thyrsiflorus C. Hart Merriam 1920-8-29 s.n. Humboldt Lower Eel River between Dyerville and Pepperwood Comment
  UC1193281  Ceanothus thyrsiflorus K. Cuff 124 Humboldt 8 mi e Petrolia; Quad. 28A3 60 Comment
Read comments
Jul 25 2009
  UC1198000  Ceanothus thyrsiflorus J. P. Tracy 1901-6-23 1166 Humboldt Eureks 0 Comment
  UC668162  Ceanothus thyrsiflorus Joseph P. Tracy 1937-5-30 15315 Humboldt Bridgeville 198 Comment
  CAS-BOT-BC52866  Ceanothus velutinus Joseph P. Tracy 1935-5-12 13798 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC52409  Ceanothus velutinus var. velutinus C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  HSC98771  Centaurea diffusa Cara Witte 2007-8-9 634 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1584 Comment
  CDA36344  Centaurea jacea Domenic Bongio 2011-11-15 PDR# 1414345 Humboldt Trinidad; Hwy 101 at mile-maker 104.05 near Patrick s Point Dr. 0 Comment
  POM208980  Centaurium muehlenbergii Lincoln Constance 1934-6-4 820 Humboldt South slope of Look Prairie, Bull Creek watershed. 381 Comment
  BLMAR319  Centaurium tenuiflorum Jennifer Anthony-Wheeler 2002-7-23 319 Humboldt Headwaters Forest Reserve, salmos pass parking lot 353 Comment
  HSC103128  Cephalanthera austiniae M. Mesler 2009-7-31 812 Humboldt South Fork Mtn. FS 1, 11.8 miles north of intersection with 4N12, just north of mile marker 34. 1486 Comment
  HSC104291  Cephalanthera austiniae Samantha E. Andres 2016-5-6 23 Humboldt About 4 mi. W on Mattole Rd. from the South Fork/Honeydew exit, above Harper Creek 128 Comment
  HSC48979  Cephalanthera austiniae Rudolf W. Becking 1979-7-15 Humboldt Fish Lake Comment
  HSC99499  Cephalanthera austiniae K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 159 Humboldt Near North Trinity Mtn, along Forest Service Rd 10NO2, between two forks of Domingo Creek 1433 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
  RSA46684  Cephalanthera austiniae Doris K. Kildale 1937-7-18 15139 Humboldt Horse Mt. Comment
  UC161036  Cerastium arvense Joseph P. Tracy 1909-8-1 3067 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC179480  Cercis occidentalis Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC100514  Cercis occidentalis Carl C. Marshall Apr 1887 384 Humboldt Hoopa Valley. Comment
  UC527564  Cercis occidentalis C. B. Wolf 1931-8-31 2380 Humboldt Sandy Bar Swimming Hole South Fork of Trinity River (slopes on w side of river 1 mi above its mouth) 243 Comment
  CAS-BOT-BC85655  Chamaecyparis lawsoniana Doris K. Kildale 1927-7-3 3640 Humboldt Willow Creek Flat 152 Comment
  HSC1193  Chamaecyparis lawsoniana J. C. Reppas 1963-3-2 50 Humboldt 820 Fickle Hill Rd. Comment
  HSC99051  Chamaecyparis lawsoniana Cara Witte 2008-6-27 772 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1365 Comment
  HSC8035  Chamaesyce maculata D. E. Anderson 1963-9-21 2840 Humboldt 0.5 mi E of Willow Creek Comment
  UC1198973  Chamaesyce serpyllifolia Joseph P. Tracy 1920-8-15 5382 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  JEPS52363  Chamaesyce serpyllifolia Joseph P. Tracy 1928-9-16 6555 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley Comment
  HSC40253  Chamerion angustifolium subsp. circumvagum Linda M. Barker 1976-8-24 1682 Humboldt 3 mi. W of Arcata Comment
  HSC59666  Chamerion angustifolium subsp. circumvagum George Kirn 1977-9-4 Humboldt 3 mi. E of Eureka on Myrtle Ave. 11 Comment
  UC562419  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1935-7-28 14322 Humboldt head of Devil's Hole Trinity Summit 1828 Comment
  UC1197014  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1946-7-28 17625 Humboldt head of Willow Creek Willow Creek Canyon (along Trinity Hwy) 762 Comment
  RSA478469  Chenopodium botrys M. B. Dunkle 1936-8-22 4860 Humboldt Williams Grove, Eel River. 213 Comment
  SEINET10539751  Chimaphila menziesii Botany 1985-5-10 BOTANY s.n. Humboldt T5n,r6e,sec.34, h.m.; Grays falls campground off hwy 299. Shaded understory, Douglas fir, madrone, canyon live oak 241 Comment
  HSC97991  Chimaphila umbellata subsp. occidentalis Cara Witte 2007-7-8 446 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  RSA1834  Chrysolepis chrysophylla Carl B. Wolf 1930-10-30 1786 Humboldt Old coast road at Thorn. 305 Comment
  HSC55104  Chrysolepis chrysophylla var. minor G. L. Clifton 1979-7-31 11845 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1193060  Chrysolepis chrysophylla var. minor G. W. Tourtillott 1950-10-11 34 Humboldt 1 mi w Queens Peak 609 Comment
  HSC36440  Cicuta douglasii John Rehling 1974-7-8 9 Humboldt Big Lagoon Bog Comment
  SD58271  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt Marsh south of Salmon Creek Comment
  HSC76203  Circaea alpina subsp. pacifica Overton, Butler 1979-8-2 12511 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC57013  Cirsium arvense Overton, Butler 1979-7-24 57013 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  SEINET201069  Cirsium arvense Joseph P. Tracy 1933-8-13 12963 Humboldt Arcata Bottom 15 Comment
  HSC39168  Cirsium brevistylum D. E. Anderson, J. P. Smith 1971-6-28 1235 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC249821  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 B Humboldt near Ruby Creek (on the Willow Creek Highway); Northern Coast Ranges 609 Comment
  UCD130619  Cirsium douglasii var. douglasii Collector Unknown Date Unknown s.n. Humboldt Horse Mt. Comment
  SEINET201022  Cirsium occidentale Joseph P. Tracy 1926-6-20 7662 Humboldt Horse Mountain lower slopes; northern coast ranges 914 Comment
  CDA15025  Cirsium occidentale var. candidissimum B. Villegas 1998-8-5 s.n. Humboldt North Coast Ranges; Nr. Berry Summit on Titlow Hill Rd, 3.9 mi. S of Hwy 299. Comment
  UC1223057  Cirsium occidentale var. candidissimum Joseph P. Tracy 1950-8-4 19257 Humboldt at head of Canoe Creek; Bull Creek State Park, Grasshopper Peak, Canoe Creek Comment
  UC1223056  Cirsium occidentale var. candidissimum Joseph P. Tracy 1942-8-9 17302 Humboldt at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  SEINET11833992  Cirsium remotifolium J. P. Tracy 1949-1 18472 Humboldt Kinsey Ridge, S from Grouse Mt., 2 to 6 mi, E of headwaters of Redwood Creek 1280 Comment
  HSC74679  Cirsium vulgare Gail Newton 1981-8-6 2397 Humboldt Near Humbug Creek 1256 Comment
  SBBG4940  Clarkia amoena H. and M. Dearing 1939-6-24 3702 Humboldt near Dinsmore, E of Bridgeville Comment
  HSC104439  Clarkia amoena Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  CAS-BOT-BC160963  Clarkia amoena subsp. amoena Ynez Whilton Winblad 1941-6-24 s.n. Humboldt Between Garberville and Pepperwood Comment
  POM225268  Clarkia amoena subsp. huntiana P. A. Munz 1936-8-10 14339 Humboldt Little Van Duzen River, 15 miles east of Bridgeville. Comment
  UC1198510  Clarkia concinna subsp. concinna Joseph P. Tracy 1936-6-17 14944 Humboldt lower foothills of nw slope Buck Mountain 762 Comment
  HSC38460  Clarkia davyi A. Montalvo 1975-5-24 270 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC1071991  Clarkia gracilis H. and M. Lewis 1947-6-13 423 Humboldt Highway 36, Bridge 4-119 South Fork of Van Duzen River Comment
  JEPS43640  Clarkia gracilis subsp. sonomensis Lincoln Constance 1934-5-23 618 Humboldt upper end Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  JEPS43554  Clarkia purpurea subsp. quadrivulnera W. L. Jepson 1932-8-8 16490 Humboldt below Chaney Ranch; Grasshopper Peak 822 Comment
  UC1281766  Clarkia purpurea subsp. quadrivulnera Richard Spellenberg 1965-6-13 1109 Humboldt about 3/4 mi s Highway through Hoopa Indian Reservation (along road on e side of river); Trinity River Comment
  HSC16262  Clarkia purpurea subsp. viminea Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  HSC41647  Clarkia rhomboidea Thomas W. Nelson, Jane P. Nelson 1977-7-1 3572 Humboldt Along road 2S08 below Goat Hill 1524 Comment
  HSC41252  Claytonia exigua subsp. glauca Brad Klipfel 1974-5-27 401 Humboldt Horse Mtn. Comment
  HSC67374  Claytonia exigua subsp. glauca Thomas W. Nelson, James Nelson 1980-6-10 5414 Humboldt Along Swayback Ridge Rd., 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  JEPS43376  Claytonia perfoliata subsp. mexicana Lincoln Constance 1934-5-26 681 Humboldt North Dyerville Flat grove South Fork Eel River, Bull Creek (near Founders' Tree) 48 Comment
  HSC95726  Claytonia perfoliata subsp. perfoliata Steven Lee 2004-3-17 2 Humboldt S Fork Rd. from Hwy. 299 to Co. Rd. 341, along river access trail at end of road Comment
  HSC54539  Claytonia sibirica Overton, Butler 1979-7-23 9515 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC162972  Claytonia sibirica Joseph P. Tracy 1908-6 2860 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC17727  Claytonia sibirica D. K. Smith 1968-4-8 14 Humboldt On West End Rd., 3 mi. from Hwy. 299 Comment
  HSC17735  Claytonia sibirica P. Markle 1962-4-26 15 Humboldt Entrance to trail to HSU campus from City of Arcata reservoir road 30 Comment
  CAS-BOT-BC92597  Clematis ligusticifolia Carl D. Duncan 1920-9-21 314 Humboldt On floor of Hoopa Valley. Comment
  HSC39721  Clinopodium douglasii D. E. Anderson, J. P. Smith 1971-6-28 - 1255 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC15447  Clintonia andrewsiana D. E. Anderson 1963-5-25 2478 Humboldt 4 mi. N of Capetown Comment
  SEINET12046245  Clintonia andrewsiana K. S. Erdman 1970-1 4796 Humboldt Cal-Barrow Road, 3mi E of US101 at boundary of Prairie Creek State Park (Redwood National Park) Comment
  SEINET12047068  Clintonia andrewsiana F. H. Utech, Utech, C. L. 1972-1 72 -609 Humboldt Humboldt Redwoods State Park, Bull Creek Flats area 213 Comment
  HSC53895  Clintonia uniflora Griswold, Butler 1979-7-11 6400 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  CAS-BOT-BC499964  Clintonia uniflora Mrs. H. C. Cantelow 1939-6-5 2446 Humboldt About 1 1/2 miles west of Dinsmores Comment
  UCR139132  Coincya monensis Jim Belsher 1997-2-13 01 Humboldt Lot ESE of the Manila Community Services District sewage pump station 6 Comment
  POM210220  Collinsia grandiflora H. E. Parks, Joseph P. Tracy 1930-5-25 741 Humboldt Laribee Valley. 762 Comment
  SBBG66416  Collinsia grandiflora H. E. Parks, J. P. Tracy 1930-5-25 741 Humboldt Laribee Valley (Larabee Valley) 762 Comment
  UC147866  Collinsia grandiflora Joseph P. Tracy 1908-6-8 2638 Humboldt Kneeland Prairie; Northern Coast Ranges; Kneeland Prairie 762 Comment
  UC169092  Collinsia grandiflora Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5673 Humboldt ridge w Hoopa Valley (Hoopa Mt summit); Hoopa Mtn, North Coast Ranges Comment
  UC1196749  Collinsia heterophylla Joseph P. Tracy 1948-6-13 18049 Humboldt near Harris 609 Comment
  HSC48759  Collinsia parviflora Brad Klipfel 1973-6-10 73 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC20605  Collinsia parviflora J. P. Tracy 1933-6-13 12567 Humboldt Hoopa Mtn., near summit on rd. from Hoopa westward to Bair's 1067 Comment
  UC147870  Collinsia sparsiflora var. sparsiflora J. P. Tracy 1904-4-17 2012 Humboldt immediate vicinity of Eureka 0 Comment
  UC1197852  Collomia grandiflora Joseph P. Tracy 1947-7-9 17829 Humboldt lower slopes Horse Mountain 1127 Comment
  UC1197855  Collomia grandiflora Joseph P. Tracy July, 1908 2785 Humboldt ridge between Van Duzen and Mad Rivers at Low Gap (Humboldt and Trinity counties); Northern Coast Ranges 457 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
  HSC16936  Collomia tracyi J. P. Tracy 1927-6-12 8161 Humboldt Horse Mtn. 1067 Comment
  HSC97106  Collomia tracyi Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 6 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1364 Comment
  UC1197861  Collomia tracyi Joseph P. Tracy 1930-6-23 9130 Humboldt on hillside of disintegrated rock Northern Coast Ranges, Horse Mountain 1432 Comment
  HSC38916  Conium maculatum J. P. Smith 1973-5-26 6794 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC902062  Convolvulus arvensis Joseph P. Tracy 1949-7-31 18400 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC25946  Convolvulus arvensis Thomas W. Nelson 1970-12-1 289 Humboldt 1 mi. N of the N Rio Dell bridge over the Eel River Comment
  UCSC000566  Convolvulus soldanella H. S. Yates 1936-6-16 5657 Humboldt 0.5 mile S.W. of Samoa Samoa - Eureka 3 Comment
  UC127716  Conyza canadensis Harley P. Chandler May 1901 1241 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  UC1196211  Coptis laciniata Joseph P. Tracy 1915-8-2 4663 Humboldt Northern Coast Ranges, Mouht of Lawrence Creek Lawrence Creek; Northern Coast Ranges, Lawrence Creek 152 Comment
Read comments
Jan 22 2014
  HSC99806  Corallorhiza maculata T. Jimerson, J. Pageau 1979-6-13 546 Humboldt Near Onion Lake, close to the town of Orleans. 549 Comment
  HSC48687  Corallorhiza mertensiana Brad Klipfel 1973-7-31 256 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC76611  Corallorhiza mertensiana Teresa Prendusi 1981-7-9 186 Humboldt Near Cedar Camp. 1268 Comment
  HSC95706  Corallorhiza mertensiana Juha Pykala, D. H. Norris 1987-6-10 1467 Humboldt 4.5 mi. N of Weitchpec, Blue Lake 838 Comment
  JEPS64350  Corallorhiza mertensiana Virginia P. Fox July 1919 Humboldt Bald Mountain Comment
  JEPS64320  Corallorhiza mertensiana W. L. Jepson 1902-6-28 1948 Humboldt Berry's Ranch Redwood Creek (Hupa road) Comment
  CAS-BOT-BC287184  Coreopsis tinctoria Henry M. Pollard 1948-8-12 s.n. Humboldt Near mouth of Perch Creek, near Orleans Comment
  UC494209  Corethrogyne filaginifolia J. Burtt Davy 1899-6-30 6185 Humboldt near Ferndale 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
  CAS-BOT-BC212007  Cornus nuttallii John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  HSC39628  Cornus nuttallii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2733 Humboldt Just W of Goat Hill, along branch road off FS 2S08 1463 Comment
  HSC6407  Cornus nuttallii Jack Rockwell 1962-4-29 43 Humboldt E bank of Redwood Creek, near Hwy. 299 549 Comment
  UCD117252  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1196906  Cornus sericea subsp. sericea Joseph P. Tracy 1900-9-10 967 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC906747  Cornus sericea subsp. sericea Joseph P. Tracy 1947-6-26 17747 Humboldt forest near McKay Camp (S. Fork Mt.); S. Fork Mt. 1676 Comment
  RSA309624  Cornus sessilis W. Wisura 1983-9-2 3929 Humboldt 6 mi W of Willow Creek, at East Fork campground, along Hwy 299. Comment
  UC502984  Cornus sessilis Joseph P. Tracy 1927-3-27 7857 Humboldt near S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  UC667997  Corylus californica Joseph P. Tracy 1938-7-6 16027 Humboldt Big Lagoon Prairie 15 Comment
  UC902053  Corylus californica Joseph P. Tracy 1949-8-11 18486 Humboldt 1 1/2 mi SE of Snow Camp 1341 Comment
  HSC58224  Corylus cornuta subsp. californica Walter Overton 1979-8-1 12367 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC70453  Corylus cornuta subsp. californica Gail Newton 1980-7-20 1642 Humboldt Near Bell Swamps 1426 Comment
  UCD110083  Corylus cornuta subsp. californica M. Risling 1975-2-15 s.n. Humboldt ca. 3 miles from Hwy 96, along Tish Tang Road. Comment
  CAS-BOT-BC143487  Cotoneaster franchetii Peter F. Zika 2007-7-20 23323 Humboldt Lynda Lane near high school, S end of Big Lagoon, (NCo, North Coast) 20 Comment
  HSC58161  Crepis acuminata G. L. Clifton, Griswold 1979-8-2 12224 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  CAS-BOT-BC290591  Crepis capillaris Doris K. Kildale 1928-5-15 6031 Humboldt Bug Creek, Chaparral Mountain Comment
  JEPS36416  Crepis capillaris W. L. Jepson 1932-8-8 16531 Humboldt near Dyerville; Perrott Creek 304 Comment
  CAS-BOT-BC291485  Crepis capillaris Carl B. Wolf 1927-8-28 1188 Humboldt Salt Marsh Eureka Bay on road to Arcata Comment
  UC538046  Crepis occidentalis E. B. Babcock 1932-6-23 403 Humboldt near Bridgeport (saddle of ridge above Art Renfroe's place) Comment
  HSC74285  Crepis pleurocarpa M. A. Baker 1980-7-11 2783 Humboldt Near Red Mtn. 1341 Comment
  JEPS22553  Crocidium multicaule Joseph P. Tracy 1933-5-21 12212 Humboldt McClellan Mountain 822 Comment
  RSA246757  Crocosmia X crocosmiiflora Robert F. Thorne, Percy C. Everett 1965-8-8 35271 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  HSC63483  Croton setiger M. A. Baker 1979-6-6 376 Humboldt Along Hwy. 96 Comment
  HSC3567  Cryptantha affinis H. E. Parks, J. P. Tracy 1934-6-27 11059 Humboldt Grouse Mtn. 1433 Comment
  UC1239649  Cryptantha torreyana Harold E. Parks and Joseph P. Tracy 1934-6-27 11058 Humboldt Grouse Mt. 1432 Comment
  UC175684  Cryptantha torreyana Joseph P. Tracy 1912-7-31 3944 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC1222265  Cryptantha torreyana Joseph P. Tracy 1949-8-11 18470 Humboldt 2-6 mi s Grouse Mt. (e of headwaters of Redwood Creek, power plant southward); Kinsey Ridge 1280 Comment
  HSC102612  Cryptogramma acrostichoides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1599 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC26874  Cuscuta pacifica var. pacifica Clifton Raymond Chesbrough 1973-6-20 104 Humboldt .25 mi. N of Eureka slough along Hwy. 101 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
  UC525558  Cynoglossum grande Joseph P. Tracy 1927-6-12 8154 Humboldt lower slopes Horse Mt.; Northern Coast Ranges, Horse Mt. 1219 Comment
  CAS-BOT-BC190425  Cynosurus echinatus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UCD60167  Cynosurus echinatus R. Tofsrud 1948-7-1 s. n. Humboldt Bluffs above Capetown. Comment
  UC668030  Cyperus bipartitus Joseph P. Tracy 1938-8-14 16113 Humboldt slopes w. of its mouth S. Fork Trinity R. 304 Comment
  HSC45552  Cyperus eragrostis J. P. Smith 1971-10-9 4990 Humboldt Mad River above the Fish Hatchery. Comment
  HSC95388  Cyperus eragrostis Andrea Pickart 2002-7-9 176 Humboldt Bracut Marsh in zone between brackish and riparian 10 Comment
  CAS-BOT-BC114060  Cyperus squarrosus Henry M. Pollard 1941-8-16 s.n. Humboldt Along river near Orleans. Comment
  UC1103636  Cyperus squarrosus Joseph P. Tracy 1921-10-9 5969 Humboldt Mad R. at Blue Lake; Northern Coast Ranges, Mad R. 30 Comment
  UC302157  Cypripedium californicum Joseph P. Tracy 1926-6-27 7669 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  HSC55124  Cystopteris fragilis G. L. Clifton, Griswold 1979-8-1 11924 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  HSC97625  Cystopteris fragilis Cara Witte 2007-5-31 161 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  POM208983  Cystopteris fragilis Lincoln Constance 1934-6-2 781 Humboldt The mouth of Bull Creek, Humboldt Redwood Park 46 Comment
  CDA36734  Cytisus scoparius Richard R. Halse 2010-3-25 7856 Humboldt Along U.S. Hwy 101 ca. 9.7 miles south of Orick. Comment
  HSC34813  Dactylis glomerata Dryden 1975-4-20 122 Humboldt Arcata 0 Comment
  RSA730951  Dactylis glomerata Gary D. Wallace 1979-6-22 1851 Humboldt Eureka. Parking lot, 6 Rivers National Forest headquarters. Comment
  HSC102211  Danthonia californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1126 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC72622  Danthonia californica J. P. Smith 1977-7-3 9231 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  HSC97571  Danthonia californica Cara Witte 2007-6-7 230 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC1152022  Danthonia californica Joseph P. Tracy 1951-6-26 19572 Humboldt Snow Camp and Twin Lakes vicinity Comment
  UCD60465  Danthonia californica Mrs. Ida E. Varley 1915-7-27 s.n. Humboldt Ferndale. Comment
  CAS-BOT-BC420359  Darmera peltata Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC39185  Darmera peltata D. E. Anderson, J. P. Smith 1971-6-28 - 1215 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC183570  Darmera peltata Joseph P. Tracy 1913-6-11 4093 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  BLMAR173  Daucus pusillus Donald Hazlett 1994-6-7 173 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1197349  Daucus pusillus J. P. Tracy 1901-6-16 1145 Humboldt near Bucksport 0 Comment
  UC1196326  Delphinium Joseph P. Tracy 1946-6-15 17564 Humboldt foothills of Horse Mountain 1066 Comment
  CAS-BOT-BC9028  Delphinium decorum subsp. tracyi Doris Kildale Gillespie 1931-6-7 10641 Humboldt South Fork Mtn., Blake Lookout 1726 Comment
  CHSC53294  Delphinium nudicaule L. P. Janeway 1984-5-13 774 Humboldt Along the Kneeland/Bridgeville Road ca 15 mi east of the Kneeland post office just past Lone Star Junction. On a roadcut near Lone Star Creek. 609 Comment
  CAS-BOT-BC9960  Delphinium nudicaule Volney Rattan 1878-1-1 s.n. Humboldt not specified Comment
  HSC27071  Delphinium nudicaule Clifton Raymond Chesbrough 1971-4-11 8 Humboldt 1.0 mi. E of Salyer on Hwy. 299, along Trinity River Comment
  JEPS23367  Delphinium nudicaule Joseph P. Tracy 1927-5-30 8084 Humboldt near Briceland; Northern Coast Ranges 243 Comment
  HSC99024  Delphinium trolliifolium Cara Witte 2008-7-16 909 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC162815  Delphinium trolliifolium Joseph P. Tracy 1908-6 2774 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC668069  Delphinium trolliifolium Joseph P. Tracy 1935-6-23 14000 Humboldt near Coyote Peak; French Camp Ridge 1066 Comment
  UC1100295  Deschampsia cespitosa subsp. beringensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1167 Humboldt 1 mi. s. Fields Landing; Eel R. Valley Comment
  UC637044  Deschampsia cespitosa subsp. beringensis Edward Lee 1934-8-17 1153 Humboldt 35 mi. n. Eureka (e. shore of Big Lagoon); Big Lagoon 3 Comment
Read comments
Sep 27 2007
  UC1131481  Deschampsia cespitosa subsp. holciformis H. S. Yates 1936-6-16 5677 Humboldt 1 mi. n.e. Samoa; Eureka Quad. Comment
  HSC75452  Deschampsia danthonioides J. O. Sawyer 1980-7-18 3589 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1103224  Deschampsia danthonioides Joseph P. Tracy 1908-6 2753 Humboldt opposite Buck Mt.; Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  CAS-BOT-BC201770  Deschampsia elongata L. R. Abrams 1918-6-16 7153 Humboldt Willow Creek Comment
  CAS-BOT-BC201778  Deschampsia elongata Doris K. Kildale 1928-7-1 5309 Humboldt French Camp - Bald Hills - Orick - Martin's ferry road Comment
  HSC13422  Deschampsia elongata D. C. Juve 1964-5-16 37 Humboldt Campbell Creek Ranger Station, Camp Tish-Tang, Hwy 96. Comment
  HSC58650  Deschampsia elongata G. L. Clifton 1979-7-31 11682 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA12539  Deschampsia elongata C. B. Wolf 1934-7-2 5899 Humboldt at Snow Camp (Mts. east of Korbel) 1372 Comment
  UCD63315  Deschampsia elongata A. H. Murphy 1948-10-21 Humboldt 1/4 mile east of Lassic Peak lookout, northeast of Blocksburg. Comment
  HSC98873  Dianthus armeria Cara Witte 2007-8-1 618 Humboldt Friday Ridge Road (Forest Service Road 6N08). Approximately 1.25 miles northeast of intersection with Friday Camp. 1222 Comment
  HSC99586  Dianthus armeria K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 251 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1387 Comment
  UC198594  Dicentra formosa Joseph P. Tracy 1917-5-13 4781 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UCR19332  Dicentra formosa Rosemary Leen 1977-4-2 s.n. Humboldt Hwy 299, east of Blue Lake. 1220 Comment
  UC1362291  Dicentra formosa Kingsley R. Stern 1964-6-13 2107 Humboldt ca 2 mi s Miranda (on e side of U.S. Highway 101, ca 50 yds n of Fish Creek) Comment
  UC1586878  Dicentra formosa Juha Pykala and D. H. Norris 1987-6-10 1525 Humboldt about 1-2 mi s Onion Lake (on Onion Lake Road); Six Rivers National Forest 1300 Comment
  RSA168936  Dicentra formosa subsp. formosa Joseph P. Tracy 1950-6-8 18720 Humboldt Near Mountain Glen, 7 miles south of Ferndale, Bear River Ridge 610 Comment
  HSC99853  Dicentra formosa subsp. oregana Gail Newton 1980-6-17 203 Humboldt Near Onion Mtn. 217 Comment
  JEPS64174  Dichelostemma capitatum Joseph P. Tracy 1925-5-30 7028 Humboldt Laribee Valley Northern Coast Ranges 701 Comment
  UC666914  Dichelostemma capitatum Joseph P. Tracy 1927-5-22 8075 Humboldt Kneeland Prairie 762 Comment
  UC1222683  Dichelostemma capitatum Joseph P. Tracy 1951-5-20 19404 Humboldt toward Ashfield Butte; Kneeland Prairie Comment
  CAS-BOT-BC502556  Dichelostemma congestum P. E. Goddard 1907-5-29 b. 109 Humboldt Van Duzen Comment
  CAS-BOT-BC501016  Dichelostemma ida-maia Lyman Benson 1930-7-18 2188 Humboldt West of Willow Creek, Seaward N. Coast, west of Trinity River 457 Comment
  CAS-BOT-BC501018  Dichelostemma ida-maia L. R. Abrams 1918-6-15 7108 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC501019  Dichelostemma ida-maia L. R. Abrams 1918-6-16 7135 Humboldt Willow Creek Comment
  CDA39454  Dichelostemma ida-maia G. D. Barbe, T. C. Fuller 1974-6-17 1828 Humboldt Thorne Road, 4 miles west of Redway, southern part of the county. 0 Comment
  UCD63953  Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles. 121 Comment
  UC212865  Digitaria sanguinalis Joseph P. Tracy 1919-9-13 5195 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley nr Willow Creek 152 Comment
  SEINET8245388  Diplacus kelloggii Unknown 1942-5-12 2894 Humboldt at junction of Klamath and Salmon rivers, 1 mile south of Somes Bar. 152 Comment
  UC30077  Disporum hookeri Harley P. Chandler May, 1901 1089 Humboldt North Coast Ranges 152 Comment
  POM277211  Disporum hookeri var. hookeri Lyman Benson 1929-7-16 1840 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  RSA10939  Disporum smithii Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of the Eel River Comment
  RSA68743  Disporum smithii Victor Duran 1933-5-12 3413 Humboldt Bull Creek, at South Fork of the Eel River Comment
  HSC9632  Distichlis spicata J. M. Johnson 1962-7-29 Humboldt On dike beside Mad River slough, W.M. Lanphere Farm, Samoa peninsula. Comment
  HSC45263  Dodecatheon hendersonii M. Alcasas 1978-4-7 4 Humboldt Freshwater Rd. 1/2 mi. N of Kneeland School 857 Comment
  JEPS8451  Dodecatheon jeffreyi Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3418 Humboldt edge of meadow at Snow Camp btw Mad River and Redwood Creek (Bald Mountain Ridge) (Ridge between Mad River and Redwood Creek (Bald Mountain Ridge)) 1432 Comment
  JEPS14452  Downingia elegans Joseph P. Tracy 1923-6-20 6339 Humboldt Miranda 121 Comment
  RSA93304  Downingia elegans var. corymbosa F. W. Peirson 1923-7-10 3871 Humboldt Wood border opening near road about 6 miles N of Garberville Comment
  RSA178586  Downingia yina Joseph P. Tracy 1951-6-21 19527 Humboldt back of Everett Beck House (formerly George Fray) bed of former Goose Lake, Hydesville. Comment
  HSC58200  Draperia systyla Walter Overton 1979-8-1 12303 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  HSC59622  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-6-30 4148 Humboldt Comment
  CAS-BOT-BC159613  Drymocallis glandulosa var. glandulosa Doris K. Kildale 1929-5-26 9136 Humboldt Klamath River at Orleans 152 Comment
  HSC34912  Drymocallis glandulosa var. glandulosa Thomas W. Nelson 1975-5-24 53 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS47226  Drymocallis glandulosa var. glandulosa Lincoln Constance 1934-6-15 878 Humboldt summit of Grasshopper Peak South Fork Eel River, Bull Creek Region (Bull Creek Region) 975 Comment
  HSC32345  Drymocallis rhomboidea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5638 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CAS-BOT-BC71055  Dryopteris expansa Mrs. H. C. Cantelow 1936-5-18 1378 Humboldt 8 mi. N. of Orick Comment
  HSC7296  Dulichium arundinaceum J. P. Tracy 1938-9-25 16173 Humboldt Bald Mtn., 'Lake Prairie 1067 Comment
  SFV7745  Dysphania botrys T. Gordon, K. Kimbrough 1975-8-22 1225 Humboldt Eel River. 61 Comment
  UC180503  Echinochloa crus-pavonis Joseph P. Tracy 1914-10-11 4634 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC7309  Eleocharis macrostachya Paul Shields 1955-10-7 Humboldt Essex Pond near Fieldbrook Comment
  HSC7316  Eleocharis macrostachya S. J. Roberts 1965-5-8 51 Humboldt 1 mi. S of junction of Old Arcata Rd. and Bayside Cutoff Comment
  UC666874  Eleocharis macrostachya Joseph P. Tracy 1934-7-14 13400 Humboldt near Blue Lake (along Mad River) Comment
  UC1103664  Eleocharis pachycarpa Harold E. Parks and Joseph P. Tracy 1934-10-13 11148 Humboldt Trinidad, at Parks' place 60 Comment
  HSC96564  Eleocharis pachycarpa Gordon Leppig 1997-8-3 648 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UCR21761  Eleocharis parvula Denis Kearns 1979-8-24 210 Humboldt North Coast, near the Arcata Boat Launching Facility at the south end of 'I' Street 1 Comment
  HSC39716  Elymus X vancouverensis D. E. Anderson, J. P. Smith 1971-6-28 - 1262 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  BLMAR19  Elymus glaucus Brad Barr June, 1982 19 Humboldt King range, North facing slope of Spanish ridge Comment
  HSC40317  Elymus glaucus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2912 Humboldt Along NW side of Lassic Peak (Signal Peak). 1738 Comment
  HSC64155  Elymus glaucus J. O. Sawyer, K. A. Sawyer 1979-6-24 3399 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UC186000  Elymus glaucus Joseph P. Tracy 1912-6-9 3659 Humboldt Alton Northern Coast Region 30 Comment
  UCD61906  Elymus glaucus R. Tofsrud 1948-9-1 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  UCD62255  Elymus glaucus P. B. Kennedy 1923-8-5 Humboldt West Fork of Eel River between Phillipsville and Garberville. Comment
  HSC58601  Elymus glaucus subsp. glaucus G. L. Clifton, Griswold 1979-7-25 10826 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC9745  Elymus glaucus subsp. glaucus D. E. Anderson 1962-7-10 2249 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  JEPS72931  Elymus glaucus subsp. jepsonii Lincoln Constance 1934-5-23 612 Humboldt se slope of mt. above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC38212  Elymus multisetus Joseph Burtt Davy 1899-6-19 5661 Humboldt Hoopa Mt. Comment
  UC1103292  Elytrigia repens Joseph P. Tracy 1937-7-17 15434 Humboldt Eureka 60 Comment
  UC1103295  Elytrigia repens Joseph P. Tracy 1925-9-13 7267 Humboldt Eel River North Coast Ranges (mouth, on river bank) 6 Comment
  HSC57372  Epilobium brachycarpum Overton, Butler 1979-7-26 10086 Humboldt Near Cold Spring, close to the town of Willow Creek 1408 Comment
  CDA38060  Epilobium brachycarpum T. C. Fuller 1962-8-6 9361 Humboldt Near Hwy 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Rd., 1 miles west of Green Point School. 0 Comment
  CAS-BOT-BC166893  Epilobium canum subsp. latifolium Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UC198608  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1916-8-20 4753 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC49649  Epilobium ciliatum subsp. ciliatum J. P. Smith 1971-10-9 5031 Humboldt Mad River above the Fish Hatchery. Comment
  POM271496  Epilobium ciliatum subsp. ciliatum Lyman Benson 1929-7-14 1804 Humboldt S. Fork Eel River, Weott Ranger Station Comment
  HSC99304  Epilobium ciliatum subsp. glandulosum Jimerson, J. Pageau 1979-8-10 743 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  UC902177  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1947-7-5 17810 Humboldt near Box Camp (along stream); Trinity Summit 1463 Comment
  SEINET9075566 Image available Epilobium ciliatum subsp. watsonii Robert F. Thorne, P. Everett 1965-1 35201 Humboldt Samoa Peninsula 0 Comment
  UC583056  Epilobium ciliatum subsp. watsonii P. A. Munz 1936-8-13 14385 Humboldt roadside ditch Clam Beach Comment
  UC902169  Epilobium densiflorum Joseph P. Tracy 1946-8-25 17644 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  UC505117  Epilobium foliosum Joseph P. Tracy 1928-5-6 8430 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC562506  Epilobium hallianum Joseph P. Tracy 1935-5-25 13852 Humboldt Fort Seward 106 Comment
  UC1222850  Epilobium hallianum Joseph P. Tracy 1950-7-6 19015 Humboldt 3 mi s Burr Valley (w side of mt.); Buck Mountain 1158 Comment
  HSC56949  Epilobium minutum Overton, Butler 1979-7-23 9447 Humboldt Near Horse Mtn., close to the town of Willow Creek 1295 Comment
  UC144086  Epilobium minutum Joseph P. Tracy 1908-6-8 2627 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  SEINET10632318  Epilobium oreganum Joseph P. Tracy 1933-7-25 Tracy 12835 Humboldt Grouse Mountain 1500 Comment
  HSC58112  Epilobium oregonense G. L. Clifton, Griswold 1979-8-1 12068 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  CAS-BOT-BC57161  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt Van Duzen River, near Grizzly Creek 91 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
  CAS-BOT-BC57789  Equisetum telmateia Henry M. Pollard 1945-9-1 s.n. Humboldt Road to Camp Creek, Klamath River Canyon. Comment
  RSA183500  Equisetum telmateia var. braunii D. V. Sanford 1963-3-23 23 Humboldt [no locality information provided] Comment
  RSA23654  Equisetum telmateia var. braunii C. B. Wolf 1939-7-6 9515 Humboldt Along Larabee Creek, 5.8 mi below Blocksburg on road to Bridgeville. Comment
  RSA10056  Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Trinity River Valley, at Willow Creek. Comment
  UC249801  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1923-9-10 6545 Humboldt Trinity River Valley near South Fork; Northern Coast Ranges, Trinity River Valley, nr South Fork 182 Comment
  CAS-BOT-BC284096  Eragrostis pectinacea var. pectinacea Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  RSA20844  Erechtites glomeratus C. B. Wolf 1937-6-18 8884 Humboldt Table Bluff between Humboldt Bay and Eel River 30 Comment
  UCR48863  Erechtites prenanthoides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 20 Humboldt Beside Mattole Rd at Bear River Ridge, south of Ferndale 525 Comment
  HSC48317  Ericameria greenei Brad Klipfel 1973-8-3 307 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57167  Erigeron aliceae Overton, Butler 1979-7-26 9972 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  UC581714  Erigeron aliceae Joseph P. Tracy 1937-8-12 15660 Humboldt Snow Camp 1402 Comment
  HSC44537  Erigeron foliosus var. confinis Brad Klipfel 1973-7-1 145 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC87757  Erigeron foliosus var. mendocinus J. W. Blankinship 1893-7-19 Humboldt Van Duzen River; banks Comment
  HSC59670  Erigeron glaucus George Kirn 1977-9-27 Humboldt 0.5 mi. NW of Samoa 8 Comment
  HSC89599  Erigeron glaucus M. Roantree 1985-4-28 18 Humboldt W side of Trinidad Head on an outcropping W of the trail Comment
  UC1199441  Erigeron glaucus Joseph P. Tracy 1913-9-21 4409 Humboldt dunes of ocean beach at Humboldt Bay Comment
  UC1199401  Erigeron inornatus var. inornatus Joseph P. Tracy 1939-8-16 16422 Humboldt Grouse Mountain 1524 Comment
  HSC98678  Erigeron inornatus var. inornatus Cara Witte 2007-7-26 590 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1283 Comment
  UCSB15446  Erigeron philadelphicus Breedlove, Dennis 1961-7-3 Humboldt Along Eel River, 7.4 miles north of Phillipsville 243 Comment
  RSA259565  Erigeron philadelphicus D. E. Anderson, J. P. Smith 1971-6-28 J- 1221 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  UCSB15926  Erigeron philadelphicus Breedlove, Dennis 1962-6-8 Humboldt On U.S. Highway 101, 3 miles south of Orick Comment
  JEPS25617  Erigeron philadelphicus var. philadelphicus Rimo Bacigalupi 1959-7-7 7250 Humboldt immediately behind bluff headland (just n of road summit at this point); Cape Mendocino 30 Comment
  JEPS82129  Erigeron philadelphicus var. philadelphicus Rimo Bacigalupi 1959-7-7 7250 Humboldt immediately behind bluff headland (just n of road summit at this point); Cape Mendocino 30 Comment
  HSC81654  Erigeron robustior Thomas W. Nelson, Jane P. Nelson 1980-7-13 6056 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  HSC100896  Eriogonum Carl C. Marshall Jun 1887 492 Humboldt Near Harris. Comment
  HSC76606  Eriogonum compositum Teresa Prendusi 1981-7-21 280 Humboldt Near Whiteys Peak 1646 Comment
  CAS-BOT-BC259161  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 7 Comment
  CHSC69503  Eriogonum latifolium Vernon Oswald; Lowell Ahart 1997-9-4 8853 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.1 mi south of Hwy. 255. 6 Comment
  HSC43069  Eriogonum latifolium J. P. Smith 1971-10-6 4982 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC17298  Eriogonum latifolium D. E. Anderson 1961-9-22 1829 Humboldt Comment
  RSA393624  Eriogonum latifolium E. A. Purer 1932-7-27 4149 Humboldt Near Samoa, near Arcata Comment
  RSA65139  Eriogonum latifolium F. W. Peirson 1926-7-14 7065 Humboldt Table Bluff Lighthouse, south of Eureka. Comment
  CAS-BOT-BC259530  Eriogonum luteolum var. luteolum H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC259531  Eriogonum luteolum var. luteolum Alice Eastwood; John Thomas Howell 1937-6-22 4746 Humboldt Near Blocksburg Comment
  CAS-BOT-BC253053  Eriogonum roseum Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC444000  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 Sayler 1371 Comment
  HSC32550  Eriogonum umbellatum var. nelsoniorum Thomas W. Nelson 1973-7-10 1032 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  SD42330  Eriogonum umbellatum var. polyanthum Carl B. Wolf 1937-8-13 9221 Humboldt North Coast Range; 8 mi. E. of Hoopa Valley on new road towards Trinity Summit Comment
  HSC63845  Eriogonum umbellatum var. umbellatum M. A. Baker 1979-6-26 913 Humboldt S facing ridge Comment
  HSC98924  Eriophorum crinigerum Cara Witte 2007-5-24 116 Humboldt Horse Mountain Botanical Area. Along Forest Service Rd. 6N38. Near Horse Mountain Mine. 1284 Comment
  RSA249330  Eriophorum crinigerum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5566 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  HSC79540  Eriophyllum confertiflorum Kenneth Clark 1979-7-1 461 Humboldt Deadman's Gulch 11 Comment
  RSA667295  Eriophyllum lanatum George K. Helmkamp, E. A. Helmkamp 2001-7-8 6991 Humboldt North coast redwood area: CA-36, along the Van Duzen R. 19.6 miles E of US-101 (W of Bar W Road) 137 Comment
  HSC5581  Eriophyllum lanatum var. achilleoides H. E. Parks, J. P. Tracy 1934-6-27 11063 Humboldt Grouse Mtn. 1433 Comment
  JEPS34644  Eriophyllum lanatum var. achilleoides Lincoln Constance 1934-6-15 888 Humboldt summit of Grasshopper Peak; Bull Creek Region, South Fork Eel River, Grasshopper Peak 975 Comment
  SEINET4208670  Eriophyllum lanatum var. achilleoides Thomas Nelson, Jane Nelson; James Nelson 1975-7-15 2028 Humboldt Growing on serpentine outcrop at French Camp, Bald Hills.; 0 Comment
  HSC70700  Eriophyllum lanatum var. arachnoideum Gail Newton 1980-7-15 1552 Humboldt Near Sims Mtn. 1311 Comment
  UC535728  Eriophyllum lanatum var. arachnoideum Eleanor Armstrong 1934-8-30 1180 Humboldt creek bed Richardson Grove 121 Comment
  HSC74470  Eriophyllum lanatum var. grandiflorum Gail Newton 1980-7-23 1724 Humboldt Near Packsaddle Ridge 1463 Comment
  POM288402  Eriophyllum lanatum var. grandiflorum Lyman Benson 1929-7-14 1801 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  CAS-BOT-BC301684  Eriophyllum lanatum var. lanceolatum Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC301687  Eriophyllum lanatum var. lanceolatum Harley P. Chandler 1901-6-1 1403 Humboldt North Coast Ranges. Klamath River 243 Comment
  BLMAR601  Eriophyllum staechadifolium Jennifer Wheeler 2010-11-3 601 Humboldt King range, North bluff of allotment above the campground 243 Comment
  HSC79415  Erodium cicutarium Kenneth Clark 1980-3-1 514 Humboldt Hillslope due N from Dead Man's Gulch, near access trail 122 Comment
  UC1714546  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1912-10-20 4001 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC101975  Erysimum capitatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 872 Humboldt Patterson Meadows 1566 Comment
  CAS-BOT-BC41569  Erysimum capitatum Doris K. Kildale 1926-4-18 1769 Humboldt McLellan Mountain. 822 Comment
  HSC67181  Erysimum capitatum var. capitatum Thomas W. Nelson, James Nelson 1980-6-10 5433 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC6761  Erysimum capitatum var. capitatum P. W. Shields May 1955 Humboldt 4 mi. W of Hoopa Comment
  RSA0008582  Erysimum menziesii Jennifer Wheeler 2010-5-11 573 Humboldt Samoa Dunes Endangered Plant Protection Area. 0 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
  HSC65203  Erythronium californicum T. Jimerson, J. Pageau 1979-5-1 445 Humboldt On FS 6N34C, Orleans Ranger District, Orleans Comment
  RSA46693  Erythronium grandiflorum subsp. grandiflorum Doris K. Kildale 1938-6-5 15392 Humboldt Horse Mountain Comment
  UC184792  Eschscholzia californica Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3600 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC44570  Eucephalus ledophyllus var. ledophyllus Brad Klipfel 1973-7-15 189 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS20466  Euchiton gymnocephalus Joseph P. Tracy 1923-4-1 6175 Humboldt near Blue Lake 304 Comment
  UC562614  Euchiton gymnocephalus Joseph P. Tracy 1936-5-29 14829 Humboldt 2 mi ne Orick (on Bald Hills road) 152 Comment
  UC1196541  Euchiton involucratus Joseph P. Tracy 1948-9-26 18232 Humboldt 6 mi se Arcata (at s end of Fickle Hill); Fickle Hill 609 Comment
  CAS-BOT-BC310493  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt Fickle Hill. (6 mi. S.E. of Arcata) 609 Comment
  RSA24201  Euonymus occidentalis C. B. Wolf 1941-3-3 9996 Humboldt N. Coast Range, 3.3 miles W of Briceland on the road to Shelter Cove. 152 Comment
  UC1198970  Euphorbia crenulata Joseph P. Tracy 1912-8-1 3960 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC198583  Euphorbia crenulata Joseph P. Tracy 1916-5-30 4787 Humboldt Dows Prairie; Northern Coast Range 60 Comment
  CDA20172  Euphorbia oblongata P. Haggard 2003-6-24 PDR 069699 Humboldt Northwestern California; Horse Mtn. 0 Comment
  JEPS52406  Euphorbia peplus Joseph P. Tracy 1926-5-15 7473 Humboldt Eureka; Northern Coast Ranges 0 Comment
  HSC5091  Eurybia radulina H. E. Parks, J. P. Tracy 1930-9-15 769 Humboldt Kneeland Bald Hills Comment
  UC1199301  Eurybia radulina Joseph P. Tracy 1930-9-14 9188 Humboldt Kneeland Prairie 762 Comment
  UC249850  Eurybia radulina Joseph P. Tracy 1924-8-10 6813 Humboldt at Blue Slide, on Van Duzen River Van Duzen River 91 Comment
  UC1223175  Euthamia occidentalis Joseph P. Tracy 1949-9-1 18538 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS32360  Euthamia occidentalis Joseph P. Tracy 1931-9-7 9636 Humboldt opposite mouth of, at Lack Pond, (in Trinity R. Valley opp. mouth of Willow Cr.) Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  SBBG53090  Festuca bromoides R. N. Philbrick 1976-6-25 11 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  HSC39227  Festuca californica D. E. Anderson, J. P. Smith 1971-7-6 1285 Humboldt Horse Mtn. Comment
  HSC70397  Festuca californica M. A. Baker 1980-6-7 1805 Humboldt Near Brush Mtn. 1128 Comment
  HSC9849  Festuca californica D. E. Anderson 1965-5-1 3583 Humboldt Along road to Bluff Creek campground, about 3 mi from its junction with Hwy. 96 Comment
  UC70921  Festuca californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 Humboldt Hoopa Mt. Comment
  HSC32216  Festuca idahoensis J. O. Sawyer 1970-6-24 2229 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC180494  Festuca idahoensis Joseph P. Tracy 1913-6-20 4239 Humboldt nw slope Buck Mountain (lower foothills); Northern Coast Ranges 762 Comment
  HSC74474  Festuca occidentalis Gail Newton 1980-7-23 1752 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC99020  Festuca occidentalis Cara Witte 2007-6-7 227 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  UC1541568  Festuca occidentalis Harold E. Parks Jun 1933 4313 Humboldt Spruce Cove Trinidad Comment
  UC53591  Festuca occidentalis H. P. Chandler 1901-1 1775 a Humboldt Humboldt Bay Comment
  UCD66174  Festuca occidentalis Linda M. Barker 1976-6-14 1598 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  RSA126630  Festuca rubra H. S. Yates 1936-6-16 5671 Humboldt 1 mile N of Samoa. 3 Comment
  UC176573  Festuca rubra Joseph P. Tracy 1912-7-7 3740 Humboldt Eureka North Coast Region 0 Comment
  UC38554  Festuca rubra Schmidt Humboldt Humboldt Bay Comment
  UC526867  Festuca rubra Joseph P. Tracy 1927-6-8 8112 Humboldt Trinidad Northern Coast Region 60 Comment
  UC1103704  Festuca subulata Joseph P. Tracy 1936-6-17 14945 Humboldt nw slope Buck Mountain 792 Comment
  POM111919  Festuca subuliflora H. P. Chandler 1901-05 1179 Humboldt Humboldt Bay. 30 Comment
  UCD66490  Festuca subuliflora R. Tofsrud 1949-7-1 Humboldt On road from Scotia to Capetown. Comment
  HSC102011  Floerkea proserpinacoides M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 912 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  SD39960  Fragaria chiloensis Edith A. Purer 1932-7-27 4159 Humboldt Samoa, sand dunes Comment
  HSC18608  Fragaria vesca A. E. Inman 1962-5-25 Humboldt E bank of Mad River, W of Camp Bauer Comment
  HSC55336  Fragaria vesca Griswold, Butler 1979-7-12 7183 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC492173  Fragaria virginiana subsp. platypetala Joseph P. Tracy 1932-7-16 10616 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC53403  Frangula californica subsp. occidentalis C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC59960  Frangula purshiana Alice Eastwood 1907-4-21 16 Humboldt Port Trinidad. Comment
  UCD113176  Frangula purshiana W. F. Murison 1965-9-30 s.n. Humboldt Kneeland. 822 Comment
  SEINET200390  Frasera speciosa Joseph P. Tracy 10731 Humboldt Trinity Summit , Open places at Corral Prairie. 1585 Comment
  UC906695  Fraxinus latifolia Joseph P. Tracy 1941-3-26 16814 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  HSC15543  Fritillaria affinis A. H. Teshima 1963-5-8 34 Humboldt Moonstone Beach area Comment
  UC14992  Fritillaria affinis J. P. Tracy 1901-4-26 1045 Humboldt immediate vicinity of Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  CAS-BOT-BC130445  Fritillaria purdyi Doris K. Kildale 1926-3-21 1575 Humboldt Kneeland Prairie Comment
  HSC65514  Fritillaria purdyi M. A. Baker 1980-6-8 1910 Humboldt Near Buck Flat. 1554 Comment
  CDA38142  Fuchsia magellanica G. D. Barbe, T. C. Fuller 1974-6-18 1872 Humboldt Loop trail above Fern Canyon, Prairie Creek Redwood State Park, 7.1 miles west of Highway 101 on Fern Canyon Road, 5 miles south of Klamath River. 0 Comment
  RSA249430  Galium ambiguum D. E. Anderson, T. Nelson, S. Dowty 1972-6-14 5596 Humboldt Mt Lassic and two smaller peaks to immediate E. 1768 Comment
  HSC57208  Galium aparine Griswold, Butler 1979-7-12 7186 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC70724  Galium aparine Gail Newton 1980-7-14 1519 Humboldt Near Deadman Ridge 1097 Comment
  JEPS6697  Galium muricatum W. L. Jepson 1932-7-30 16454 Humboldt Bull Creek Comment
  JEPS6496  Galium parisiense W. L. Jepson 1902-6 1981 Humboldt Hupa Comment
  UC213506  Galium parisiense Joseph P. Tracy 1920-7-11 5343 Humboldt near Arcata (around Humboldt Bay); Northern Coast Ranges, Fickle Hill 304 Comment
  UC1196084  Galium trifidum var. pusillum Joseph P. Tracy 1935-7-27 14303 1/2 Humboldt McKay Prairie Trinity Summit 1584 Comment
  HSC58008  Galium triflorum G. L. Clifton 1979-7-31 11804 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC104445  Gamochaeta ustulata Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 9 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC46966  Gamochaeta ustulata J. P. Smith, Thomas W. Nelson 1977-6-30 9213 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC89610  Gamochaeta ustulata M. Roantree 1985-5-2 28 Humboldt SW side of Trinidad Head Comment
  CHSC19502  Garrya elliptica Gene S. Van Horn 1963-1-5 35 Humboldt On W. M. Lanphere's ranch 9 Comment
  HSC26847  Garrya elliptica Thomas W. Nelson 1971-1-9 325 Humboldt Patrick's Point State Park near Ceremonial Rock 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
  UC1541254  Garrya elliptica Harold E. Parks Mar 1933 1403 Humboldt near Trinidad Comment
  UCSB15521  Garrya elliptica Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samosa on peninsula on western side of Humboldt Bay. Comment
  HSC98071  Garrya fremontii Cara Witte 2007-7-12 530 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  LA40291  Garrya fremontii Carl B. Wolf; 1930-10-24 1762 Humboldt along Klamath River, 1 mi. above the mouth of Slate Creek 243 Comment
  OBI14161  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 a Humboldt Trinity River Valley, at Willow crk Comment
  RSA89597  Garrya fremontii M. F. Moseley 1952-8-21 344 Humboldt Along western valley wall of Willow Creek, mostly within Hoopa Indian Reservation, upstream from Willow Creek Village. Comment
  UC1174948  Garrya fremontii P. C. Everett and E. K. Balls 1959-10-24 23952 Humboldt Somesbar to Orleans (2.8 mi sw from Siskiyou-Humboldt County line) 198 Comment
  RSA129632  Gastridium phleoides H. S. Yates 1936-6-23 5877 Humboldt 4 miles NNE of Cathay Peak. Comment
  HSC7815  Gaultheria shallon Francis Winter 1960-4-23 Humboldt Samoa peninsula 6 mi. W of Arcata Comment
  UC202459  Gayophytum heterozygum Joseph P. Tracy 1919-9-18 5248 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  HSC53980  Gayophytum humile Griswold, Butler 1979-7-11 7055 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC1196963  Gayophytum humile Joseph P. Tracy 1949-6-25 18593 Humboldt Box Camp Trinity Summit 1463 Comment
  CAS-BOT-BC208029  Genista monspessulana C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  CAS-BOT-BC208037  Genista monspessulana Elmer I. Applegate 1931-3-28 6627 Humboldt Redwood Highway, near Dyrville Comment
  UC179966  Gentiana sceptrum Joseph P. Tracy 1914-9-6 4610 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UC1197398  Geranium carolinianum Joseph P. Tracy 1914-10-11 4633 Humboldt Eureka Northern Coast Region 0 Comment
  HSC95593  Geranium dissectum Andrea Pickart 2002-5-24 110 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  UC668044  Geranium molle Joseph P. Tracy 1933-5-19 12197 Humboldt Alton to Fortuna (along the Eel River); Eel River 15 Comment
  HSC99453  Geum macrophyllum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 104 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
  JEPS79892  Geum macrophyllum Joseph P. Tracy 1932-7-14 10540 Humboldt at Corral Prairie, Klamath Mountains, Trinity Summit Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  HSC16967  Gilia capitata J. Wendell Howe 1931-6-7 Humboldt Wildcat Rd. W of Ferndale Comment
  UC1197929  Gilia capitata subsp. capitata Joseph P. Tracy 1908-6 2751 Humboldt nw slope of Buck Mountain , nw slope Buck Mountain (Northern Coast Ranges) 457 Comment
  RSA23650  Gilia capitata subsp. pacifica C. B. Wolf 1939-7-8 9519 Humboldt Devil's Gate, south of Cape Mendocino. 8 Comment
  HSC104345  Gilia capitata subsp. pacifica James Regan, Humboldt Redwood Co., LLC 2004-6-3 4 Humboldt Kneeland, near Kneeland Airport 854 Comment
  BLMAR597  Gilia millefoliata Jennifer Wheeler 2010-5-11 597 Humboldt Samoa Peninsula, Samoa Dunes Engangered Plant Protection Area 3 Comment
  CAS-BOT-BC225471  Gilia millefoliata Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  CAS-BOT-BC225476  Gilia millefoliata Lewis S. Rose; John Thomas Howell; Gordon H. True 1972-6-5 48816 Humboldt Samoa 3 Comment
  HSC37942  Gilia millefoliata Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  JEPS86031  Gilia millefoliata Joseph P. Tracy 1936-5-30 14833 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, , near Samoa 6 Comment
  HSC97919  Githopsis specularioides Cara Witte 2007-6-19 303 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  SEINET10873073  Githopsis specularioides Tracy 1908-6-9 TRACY 2655 Humboldt Kneeland Prairie 762 Comment
  HSC37570  Glaux maritima J. D. Ackerman 1975-6-10 453 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  CAS-BOT-BC218428  Glehnia littoralis subsp. leiocarpa Ira L. Wiggins 1930-7-7 4676 a Humboldt Sand dunes near Samoa Comment
  CAS-BOT-BC218434  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1933-8-25 12994 Humboldt Centerville Beach, south of mouth of Eel River 6 Comment
  HSC58551  Glyceria elata Overton, Butler 1979-7-24 9812 Humboldt Near Black Rock, close to the town of Willow Creek 1463 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
  RSA624789  Glyceria fluitans Gordon Leppig, Sylvia Leppig 1999-4-24 1125 Humboldt Arcata, Alder Grove Pond. 18 Comment
  HSC10089  Glyceria striata J. P. Tracy 1925-6-13 7086 Humboldt Eureka 0 Comment
  HSC4666  Gnaphalium palustre H. E. Parks, S. T. Parks Jul 1937 24026 Humboldt Trinidad; Spruce Cove Comment
  POM199562  Gnaphalium sphaericum Joseph P. Tracy 1915-9-12 4677 Humboldt Humboldt County: mouth of Laribee Creek. 61 Comment
  UCR122357  Gnaphalium stramineum George K. Helmkamp, E. A. Helmkamp 2001-7-8 7013 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC29719  Goodyera oblongifolia J. D. Ackerman 1973-8-18 120 Humboldt 2 mi. N of Manila Comment
  JEPS79300  Gratiola ebracteata Wm. C. Vinyard and Scott W. Hilton 1980-9-16 800916 .1 Humboldt near summit of Snowcamp Mnt (ne side of Snowcamp Lake); near summit Snowcamp Mnt, ne side Snowcamp Lake 1371 Comment
  RSA12431  Gratiola ebracteata Carl B. Wolf 1934-7-2 5863 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  CAS-BOT-BC304731  Grindelia hirsutula Joseph P. Tracy 1918-7-7 5038 Humboldt Northern Coast Ranges. Near Garberville 121 Comment
  CAS-BOT-BC304736  Grindelia hirsutula Doris K. Kildale 1926-6-25 2172 Humboldt Big Lagoon Comment
  CAS-BOT-BC304738  Grindelia hirsutula Alice Eastwood; John Thomas Howell 1936-7-3 3781 Humboldt Eureka Comment
  CAS-BOT-BC304739  Grindelia hirsutula Joseph P. Tracy 1939-8-6 16397 Humboldt Shore of Big Lagoon 3 Comment
  JEPS93179  Grindelia hirsutula Margriet Wetherwax and Kevin Downing 1993-8-9 2458 Humboldt Eureka Slough Humboldt Bay (s side, near Bayside Rd. and Myrtle Marsh, at end of road to church, on e side of bay, just n of Eureka) 5 Comment
  SBBG62631  Grindelia hirsutula R. Hartwell 1938-8-5 Humboldt Mattole Rd on coast between Capetown and Petrolia, along beach Comment
  UC520422  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-9 3687 Humboldt 10 mi n Trinidad 1 Comment
  OBI37801  Grindelia stricta var. platyphylla David J. Keil 1983-7-1 17281 Humboldt Ca. 7 mi W of Honeydew along Mattole rd Comment
  POM161906  Grindelia stricta var. stricta Joseph P. Tracy 1921-7-10 5856 Humboldt Big Lagoon. 6 Comment
  UC1239635  Hackelia californica Joseph P. Tracy 1936-8-8 15126 Humboldt on Ridge 2 mi e of Groves Prairie; Trinity Summit 1524 Comment
  JEPS55562  Hackelia micrantha Hilda Grinnell 1932-7-12 16 Humboldt slope below McKay Camp; South Fork Mountain Comment
  UC582620  Hackelia setosa Joseph P. Tracy 1937-7-24 15510 Humboldt 2 mi se of Devil's Hole; Trinity Summit 1584 Comment
  HSC57955  Hastingsia alba G. L. Clifton, Griswold 1979-7-31 11642 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC630631  Hedera helix Joseph P. Tracy 1939-10-15 16519 Humboldt Van Duzen River Blue Slide; , Blue Slide 91 Comment
  HSC102180  Helenium bigelovii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1093 Humboldt Patterson Meadows 1555 Comment
  UC175964  Helenium bolanderi Joseph P. Tracy 1912-7-22 3795 Humboldt between Fields Landing and Elk River; Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC305848  Helminthotheca echioides Doris K. Kildale 1928-7-29 5918 Humboldt Bear River at Capetown Comment
  CAS-BOT-BC305849  Helminthotheca echioides F. J. Kirby 1958-7-1 s.n. Humboldt Near Bridgeville 304 Comment
  HSC63147  Hemitomes congestum M. A. Baker 1979-6-30 972 Humboldt Top of ridge 1400 Comment
  HSC73668  Hemizonella minima M. A. Baker 1980-7-15 2962 Humboldt Near Whiting Ridge. 1341 Comment
  UC1199292  Hemizonella minima Joseph P. Tracy 1933-7-25 12867 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UC718391  Hemizonella minima C. B. Wolf 1934-9-2 5861 Humboldt e Korbel; Snow Camp 914 Comment
  HSC36492  Hemizonia congesta subsp. clevelandii Thomas W. Nelson, James Nelson 1975-9-3 2192 Humboldt Along N side of Ashfield Butte Comment
  CAS-BOT-BC306184  Hemizonia congesta subsp. congesta J. Clausen 1932-9-18 679 Humboldt 4 miles southwest of Capetown on the road to Petrolia 213 Comment
  CAS-BOT-BC309995  Hemizonia congesta subsp. tracyi Carl B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  HSC5819  Hemizonia congesta subsp. tracyi H. E. Parks May 1934 5076 Humboldt Bridgeville 152 Comment
  JEPS25616  Hemizonia congesta subsp. tracyi Rimo Bacigalupi 1959-7-7 7249 Humboldt immediately behind headland of Cape Mendocino (steep grade of coast road, just s of road summit at this point) 30 Comment
  UC1281660  Hemizonia congesta subsp. tracyi Richard Spellenberg 1965-6-14 1129 Humboldt 6 mi se Kneeland Comment
  UC195064  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1916-9-5 4766 Humboldt 4 mi above the mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  HSC21511  Heracleum maximum D. B. Bader 1963-4-1 9 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  CAS-BOT-BC310180  Hesperevax sparsiflora var. brevifolia Joseph P. Tracy 1905-4-30 2173 Humboldt Northern Coast Region. At Humboldt Bay Comment
  UCR37532  Hesperevax sparsiflora var. brevifolia L. P. Janeway, Amy Eisenberg 1984-4-25 747 Humboldt North Spit of Humboldt Bay; southeast side of intersection of Samoa and Fairhaven roads, northeast of the willow patch 3 Comment
  HSC98193  Hesperocyparis macrocarpa Will Ferrand 2002-4-27 44 Humboldt HSU Campus, 100ft W of library 24 Comment
  SEINET10840493  Heterocodon rariflorum Lincoln Constance 1934-6-19 Constance 915 Humboldt E OF GRASSHOPPER PEAK, BULL CREEK 2500 Comment
  CAS-BOT-BC143655  Heteromeles arbutifolia Doris K. Kildale 1928-7-1 5315 Humboldt Klamath RIver at mouth of Bluff Creek Comment
  CAS-BOT-BC311055  Heterotheca oregona var. oregona Joseph P. Tracy 1933-10-15 13097 Humboldt Miranda, along South Fork of Eel River 121 Comment
  UC581756  Heterotheca oregona var. rudis Joseph P. Tracy 1930-7-27 9112 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  HSC32931  Heuchera micrantha Thomas W. Nelson, James Nelson 1973-5-28 951 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC44341  Heuchera micrantha Brad Klipfel 1975-6-17 680 Humboldt Horse Mtn. Comment
  CAS-BOT-BC420725  Heuchera micrantha var. diversifolia Lincoln Constance; Reed C. Rollins 1942-5-12 2883 Humboldt Mouth of Bluff Creek, 6 miles NE of Weitchpec 152 Comment
  HSC55746  Heuchera rubescens G. L. Clifton, Griswold 1979-7-26 10269 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC48819  Hieracium albiflorum Brad Klipfel 1973-7-31 232 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC81930  Hieracium albiflorum Thomas W. Nelson, Jane P. Nelson 1979-7-3 4947 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC47961  Hieracium albiflorum Brad Klipfel 1974-5-25 429 Humboldt Horse Mtn. Comment
  HSC102077  Hieracium greenei M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 979 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA604019  Hierochloe occidentalis R. R. Halse 1996-3-26 5020 Humboldt Redwood National Park; at junction of Bald Hills Road and Holter Ridge Bike Route, 11 mile SE of U.S. Hwy. 101. 708 Comment
  HSC26474  Hippuris vulgaris John R. Keith 1973-5-9 Humboldt 300 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  RSA0016045  Hippuris vulgaris Robert F. Thorne, P. C. Everett 1965-8-9 35344 Humboldt Along Hwy 101 about 3 miles N of Eureka. 2 Comment
  CAS-BOT-BC280733  Holcus lanatus Thomas W. Nelson; Jane P. Nelson 1979-7-3 4959 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek roads 609 Comment
  CHSC31289  Holcus lanatus Mark Stopher 1980-7-11 116 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC37237  Holcus lanatus Lon Hall 1975-6-19 401 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC59126  Holcus lanatus Terry Roth 1979-5-26 88 Humboldt Arcata, field off Sunset Ave., near the old mill location. Comment
  HSC81934  Holcus lanatus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4959 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UCD84972  Holcus lanatus Joseph P. Tracy 1949-7-6 18330 Humboldt Eureka. 30 Comment
  HSC72986  Holodiscus discolor M. A. Baker 1980-7-15 2947 Humboldt Near Whiting Ridge 301 Comment
  HSC74749  Holodiscus discolor Gail Newton 1981-7-22 2261 Humboldt Near Bug Creek 1375 Comment
  UC154211  Holodiscus discolor Joseph P. Tracy 1901-7-31 1231 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  UC774993  Holodiscus discolor Carl B. Wolf 1937-8-13 9227 Humboldt 8 mi e of Hoopa Valley (on new road towards Trinity Summit, North Coast Range); North Coast Range 1219 Comment
  HSC38770  Hordeum brachyantherum J. D. Ackerman 1975-6-10 463 Humboldt 1 mi. N of Samoa Blvd. and Samoa bridge Rd. intersection. S of Manila. Near Railroad tracks Comment
  HSC74183  Hordeum brachyantherum M. A. Baker 1980-7-22 3108 Humboldt Near Grogan Hole. 1676 Comment
  HSC37932  Hordeum murinum subsp. leporinum Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UC585617  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt s Field's Landing (Foot of low hills) 6 Comment
  UC303162  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1925-5-30 7025 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  UC902134  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1947-7-5 17792 Humboldt Mud Springs Trinity Summit 1341 Comment
  HSC97436  Hydrocotyle ranunculoides Ivy Watson 2008-9-28 33 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  UC35528  Hydrophyllum occidentale Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  UC1245394  Hydrophyllum occidentale Joseph T. Gregory 1933-7-11 371 Humboldt near Clear Lake (Grouse Mt.); Grouse Mt. 1524 Comment
  UC24110  Hydrophyllum tenuipes Joseph P. Tracy May 1901 1263 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  UC427873  Hydrophyllum tenuipes Parks and Tracy 1930-5-25 863 Humboldt in redwoods along Middle Van Duzen River Comment
  UC902140  Hypericum anagalloides Joseph P. Tracy 1947-6-28 17750 Humboldt Larrabee Valley 731 Comment
  POM146240  Hypericum formosum var. scouleri J. B. Feudge 1923-7-23 153 Humboldt Trinidad Comment
  RSA8307  Hypericum formosum var. scouleri I. L. Wiggins 1932-7-18 5886 Humboldt Boggy meadow between Arcata and Bayside Comment
  CAS-BOT-BC401233  Hypericum perforatum L. R. Abrams 1916-7-11 5973 Humboldt Alders Point Comment
  HSC104442  Hypericum perforatum Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 16 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC1137469  Hypericum perforatum Hubert Person 1941-5-24 25323 Humboldt just n. Garberville; Briceland Quad., CA Forest & Range Expt. Station 152 Comment
Read comments
Sep 12 2009
  CAS-BOT-BC401303  Hypericum scouleri Doris K. Kildale 1926-7-9 2337 Humboldt Bayside Comment
  JEPS36532  Hypochaeris glabra Lincoln Constance 1934-5-24 639 Humboldt South fork Eel River; Bull Creek Region 121 Comment
  CAS-BOT-BC312888  Hypochaeris glabra Barry Silver 1986-5-18 602 Humboldt Bull Creek Flats Road, 100 yds. w. of junction with Highway 101 Comment
  HSC45647  Hypochaeris glabra Diane L. Reed 1978-4-22 19 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  CAS-BOT-BC311432  Hypochaeris radicata Alice Eastwood 1923-8-16 12332 Humboldt Carlotta Comment
  HSC100166  Ilex aquifolium J. P. Smith 2010-2-27 12708 Humboldt Azalea State Reserve SE of McKinleyville. 50 Comment
  RSA366781  Iris Anstruther Davidson 1918-07 3343 Humboldt Eel River. Comment
  HSC13866  Iris douglasiana R. E. Hafenfeld 1965-5-9 3 Humboldt 0.5 mi. S of Fern Canyon Comment
  HSC47580  Iris douglasiana Sheila Logan 1978-4-10 176 Humboldt Redwood Park behind HSU campus Comment
  SEINET4170680  Iris douglasiana Unknown 1934-6-8 Humboldt Bolling Grove State Park. Comment
  JEPS79908  Iris macrosiphon Joseph P. Tracy 1941-3-23 16808 Humboldt 3 mi w Bridgeport (near e margin of redwood belt through s Humboldt County) 198 Comment
  SD42572  Iris macrosiphon Carl B. Wolf 1937-6-19 8913 Humboldt North Coast Range, 7 & 2/10 miles above Bridgeville, on grade to Dinsmores. Moist open forest ridge. 456 Comment
  UC667117  Iris macrosiphon Joseph P. Tracy 1927-6-12 8138 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  HSC34872  Iris purdyi Thomas W. Nelson, James Nelson 1975-5-5 1781 Humboldt Beside Hwy. 101, 5 mi. S of Salmon Creek bridge Comment
  HSC36495  Iris purdyi Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1896 Humboldt Beside branch off FS Rd. 2S08 to Pine Mtn. Comment
  RSA114085  Iris purdyi Rimo C. Bacigalupi, L. Constance, Joseph P. Tracy, Reid V. Moran, R. L. Rodriguez, Sherwin Carlquist 1951-6-14 3414 Humboldt Near Snow Camp, ridge between Mad River and Redwood Creek, Bald Mountain 1433 Comment
  RSA136521  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-11 17191 Humboldt 10.1 miles southwest from Trinity - Humboldt County line; 5.2 miles north of Harris on road to Zenia Comment
  UCD138800  Iris purdyi R. N. Raynor 1935-2-22 s.n. Humboldt Fort Seward. Comment
  OBI36658  Iris tenuissima David J. Keil 1983-7-2 17311 Humboldt Ca 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mtn Summit Rd Comment
  HSC13903  Iris tenuissima Francis Winter 1960-4-24 Humboldt 7 mi. W of Hoopa Indian Reservation, Bair Rd. 915 Comment
  HSC99375  Iris tenuissima subsp. tenuissima K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 24 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1433 Comment
  CAS-BOT-BC88652  Isatis tinctoria Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek, near Orleans. Comment
  RSA43869  Isatis tinctoria H. M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  JEPS60152  Isoetes bolanderi Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp 1402 Comment
  JEPS60155  Isoetes echinospora Joseph P. Tracy 1937-8-12 15651 Humboldt Snow Camp 1402 Comment
  HSC7448  Isolepis cernua D. E. Anderson 1961-9-3 1780 Humboldt Along Hwy. 101 Comment
  UCD49898  Isolepis cernua Linda M. Barker 1976-6-22 1618 Humboldt Coastal forest and dunes 3 miles west of Arcata, Humboldt Co., California. Comment
  UC479412  Jaumea carnosa Marcus E. Jones, A. M. 1931-7-16 29118 Humboldt Arcata Comment
  CAS-BOT-BC101963  Juglans hindsii Henry M. Pollard 1947-8-30 s.n. Humboldt Along Klamath River nr. Wilson Creek, Orleans region Comment
  RSA54123  Juncus articulatus Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek. Klamath River Canyon. Comment
  HSC45436  Juncus bolanderi Thomas W. Nelson, Jane P. Nelson 1978-7-2 4402 Humboldt Wet alluvial soil at Lost Lake 1433 Comment
  HSC90771  Juncus bufonius Gail Newton 1982-6-10 3602 Humboldt Elk River Wildlife Area, Eureka Comment
  RSA70280  Juncus covillei F. W. Peirson 1923-7-9 3666 Humboldt Humboldt County State Park on Eel River, northern California. Comment
  UCD141493  Juncus effusus K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 609 Comment
  HSC14012  Juncus effusus subsp. pacificus W. R. Brigham 1962-5-19 24 Humboldt S of Big Lagoon. Comment
  SDSU11740  Juncus effusus var. brunneus D. F. Howe 1961-8-2 3119 Humboldt 8.5 miles east of Orick on Bald Mt. road. 610 Comment
  POM87662  Juncus ensifolius Le Roy Abrams, Rimo C. Bacigalupi 8286 Humboldt Big Lagoon. South of Orick. Comment
  UC1103054  Juncus hesperius Joseph P. Tracy 1901-7-29 1229 Humboldt Eureka Northern Coast Region 0 Comment
  RSA129408  Juncus hesperius H. S. Yates 1936-6-23 5867 Humboldt 2 miles northwest of Fortuna. 30 Comment
  UCSC000127  Juncus hesperius Unknown 1975-4-21 59 Humboldt 2 miles N.W. of Fortuna - Rohnerville Comment
  HSC82399  Juncus howellii Thomas W. Nelson 1979-7-11 5015 Humboldt N Trinity Mtn. and ridge to E 1829 Comment
  HSC39050  Juncus lescurii Linda M. Barker 1976-6-22 1620 Humboldt 3 mi. W of Arcata Comment
  UC1222344  Juncus occidentalis Joseph P. Tracy 1953-6-26 19561 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  UC249816  Juncus phaeocephalus Joseph P. Tracy 1924-7-13 6733 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC74667  Keckiella corymbosa Gail Newton 1981-8-7 2429 Humboldt Near Bug Creek Butte 1244 Comment
  JEPS11129  Keckiella corymbosa Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  RSA79855  Keckiella corymbosa F. W. Peirson 1926-7-12 7025 Humboldt Klamath River near Weitchpec. Comment
  SD87720  Keckiella corymbosa Frank W. Peirson 1926-7-12 7025 Humboldt Klamath River near Weitchpec Comment
  UCD123822  Keckiella corymbosa D. Wiesendanger; F. Randall 1926-7-1 1541 Humboldt Richardson's Grove, Redwood Highway. Comment
  UC1196076  Kelloggia galioides Joseph P. Tracy 1919-9-19 5257 Humboldt Trinity Summit; Northern Coast Ranges 1889 Comment
  BLMAR47  Koeleria macrantha Brad Barr June, 1982 47 Humboldt King range, HJ Comment
  UC1196122  Kopsiopsis strobilacea Road Maintenace Crew May 1943 Humboldt Willow Creek Canyon on Trinity Highway. 762 Comment
  UC1223227  Lactuca ludoviciana Joseph P. Tracy 1950-9-22 19368 Humboldt 8 mi below Orleans; Klamath River, Slate Creek 121 Comment
  SEINET202279 Image available Lactuca ludoviciana Joseph P. Tracy 1950-9-22 19368 Humboldt Klamath River near Slate Creek. Below Orleans 8 miles 122 Comment
  UCD133531  Lactuca saligna Joseph P. Tracy 1946-8-25 17650 Humboldt Eel River, Alton to Fortuna. 15 Comment
  CDA18209  Lasthenia californica G. D. Barbe, T. C. Fuller 1974-6-17 1836 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  HSC5135  Lasthenia californica G. N. Bos 1965-5-15 261 Humboldt 3 mi. W of Berry Summit along U.S. 299 610 Comment
  UC128624  Lasthenia californica subsp. californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5380 Humboldt Harris Comment
  UC129574  Lasthenia californica subsp. californica Harley P. Chandler 1901-6-1 1455 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UC166218  Lasthenia californica subsp. californica Joseph P. Tracy 1903-5-22 1882 Humboldt Alder Point Flat Northern Coast Ranges, Eel River 152 Comment
  UC1368669  Lathyrus glandulosus J. P. Tracy 1946-6-15 17571 Humboldt w of summit between North Fork Mad River and Redwood Creek (along Lord Ellis Road, part of Trinity Highway) 609 Comment
  UC1222416  Lathyrus jepsonii var. californicus Joseph P. Tracy 1942-7-1 17361 Humboldt opposite Buck Mountain; Van Duzen River 762 Comment
  CAS-BOT-BC94773  Lathyrus latifolius R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 833 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  HSC46016  Lathyrus latifolius Catherine Chin 1978-8-5 101 Humboldt Arcata, side road on Spring St., between 16th and 17th Sts. Comment
  BLMAR719  Lathyrus littoralis Jennifer Wheeler 2011-5-20 719 Humboldt King range, Mattole Beach Sand Dunes 3 Comment
  UCD106376  Lathyrus littoralis Linda M. Barker 1976-5-13 1489 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA406672  Lathyrus littoralis J. P. Smith, T. W. Nelson 1977-6-30 9217 Humboldt Samoa Peninsula just east of the drag strip. Comment
  RSA168910  Lathyrus nevadensis subsp. nevadensis Joseph P. Tracy 1942-6-23 17226 Humboldt Trinity Summit Ridge top one mile west of Mud Springs. Comment
  UC495706  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1932-7-16 10641 Humboldt McKay Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC73128  Lathyrus polyphyllus M. A. Baker 1980-5-18 1283 Humboldt Near Black Mtn. 1006 Comment
  BLMAR275  Lathyrus polyphyllus Jennifer Anthony-Wheeler 1999-7-30 275 Humboldt Lacks Creek, growing by fdsides adjacent to forest 1219 Comment
  HSC76514  Lathyrus sulphureus Denis Kearns 1981-7-23 416 Humboldt Near Whiteys Peak. 1524 Comment
  HSC23457  Lathyrus tracyi D. E. Anderson 1965-5-1 3561 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  RSA405756  Lathyrus vestitus subsp. vestitus Unspecified 1924-7-11 s.n. Humboldt Arcata Comment
  RSA405757  Lathyrus vestitus subsp. vestitus Charlotte M. Hoak 1931-7-15 14014 Humboldt Big Lagoon Comment
  CAS-BOT-BC534635  Lemna minor Henry M. Pollard 1956-10-13 2 Humboldt near Orleans Comment
  UC1101252  Lemna valdiviana Malcolm A. Nobs, S. Galen Smith 1949-8-9 1249 Humboldt Clam Beach Comment
  RSA170231  Lepidium heterophyllum Joseph P. Tracy 1942-6-15 17140 Humboldt Miranda. 91 Comment
  UC1173729  Lepidium virginicum Joseph P. Tracy 1939-4-29 16245 Humboldt mouth of Slate Creek Klamath River 121 Comment
  POM203230  Leptosiphon acicularis M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles N of Garberville Comment
  HSC22865  Leptosiphon androsaceus D. E. Anderson 1965-5-8 3636 Humboldt 4 mi. E of Berry Summit along Hwy. 299 Comment
  UCD118584  Leptosiphon androsaceus Victor Duran 1933-5-10 3403 Humboldt near Blocksburg. Comment
  HSC35964  Leptosiphon androsaceus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1948 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  HSC71061  Leptosiphon bicolor Thomas W. Nelson, Jane P. Nelson 1980-5-30 3395 Humboldt McKeown Ranch along rd. to Anderson's Ford 854 Comment
  HSC39423  Lewisia triphylla Thomas W. Nelson, Jane P. Nelson 1976-6-15 2725 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  RSA246911  Leymus mollis subsp. mollis R. F. Thorne, P. Everett 1965-8-5 35159 Humboldt Samoa Dunes 3 Comment
  UC1103199  Leymus mollis subsp. mollis J. P. Tracy 1900-7-4 884 Humboldt ocean beach opp. Eureka; Samoa Comment
  SD51274  Ligusticum apiifolium Darley F. Howe 1961-8-2 3614 Humboldt 24 miles east of Orick on Bald Mountain Road. 915 Comment
  HSC70658  Ligusticum californicum Gail Newton 1980-7-14 1539 Humboldt Near Deadman Ridge 1097 Comment
  HSC75965  Ligusticum grayi Overton, Butler 1979-8-2 12584 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC76432  Lilium bolanderi Teresa Prendusi 1981-7-9 233 Humboldt Near Cedar Camp 1256 Comment
  UC176172  Lilium columbianum Joseph P. Tracy 1913-9-9 4395 Humboldt Patrick's Point; Northern Coast Ranges 30 Comment
  CAS-BOT-BC508394  Lilium columbianum Mrs. L. B. Kildale 1925-6-7 s.n. Humboldt Between Trinidad Head and Orick Comment
  CAS-BOT-BC508397  Lilium columbianum W. R. Dudley 1899-1-1 s.n. Humboldt Big Lagoon, south of Klamath River Comment
  HSC15568  Lilium columbianum P. A. Mansfield 1967-7-8 15 Humboldt Along French Camp Ridge Comment
  CAS-BOT-BC130640  Lilium kelloggii A. M. Vollmer; L. Beane 1953-7-1 117 Humboldt Freshwater Comment
  RSA74747  Lilium kelloggii Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On road to Bald Mountain, east of Korbel Comment
  UC1198243  Lilium occidentale Joseph P. Tracy 1924-9-21 6886 Humboldt Eureka; Northern Coast Ranges 0 Comment
  CAS-BOT-BC130732  Lilium pardalinum Doris K. Kildale 1928-7-25 5693 Humboldt Chalk Mountain 914 Comment
  UC666956  Lilium pardalinum Joseph P. Tracy 1937-7-24 15533 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC54663  Lilium pardalinum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5717 Humboldt Supply Creek; North Coast Ranges, Hupa Valley Comment
  UC54664  Lilium pardalinum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5717 Humboldt Supply Creek; North Coast Ranges, Hupa Valley Comment
  CAS-BOT-BC132959  Lilium rubescens A. M. Vollmer; L. Beane 1951-6-11 135 Humboldt Bridgeville Comment
  SBBG1042  Lilium rubescens H. and M. Dearing 1939-6-27 3730 Humboldt Van Duzen River near Dinsmore Comment
  UC1198228  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1947-7-9 17863 Humboldt Horse Mountain 1432 Comment
  UC1222535  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1950-7-1 18951 Humboldt near Friday Camp ((to Grouse Mt.)); Friday Ridge 1219 Comment
  HSC43106  Limnanthes douglasii subsp. nivea Maralyn O'Meara 1974-5-14 359 Humboldt Along Hwy. 36, 7.1 mi. E of Bridgeville Comment
  SEINET3818260  Limnorchis leucostachys Unknown 1942-1 Humboldt Comment
  HSC22528  Limonium californicum Jerry Parker 1968-11-9 228 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata. Comment
  HSC95099  Limonium californicum Andrea Pickart 2002-6-27 121 Humboldt Mad River Slough and Dunes, N of parking area at N end of access road. 0 Comment
  RSA244966  Limonium californicum William J. Ferlatte, B. D. Rogers 1966-8-15 3126 Humboldt Near Arcata sewage pond. North Humboldt Bay. Comment
  JEPS58168  Linanthus androsaceus Joseph P. Tracy 1940-5-17 16553 Humboldt Larrabee Valley 731 Comment
  UC52822  Linanthus ciliatus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  JEPS79923  Linanthus ciliatus Joseph P. Tracy 12923 Humboldt s slope Grouse Mountain (towards Grouse Creek Basin); North Coast Ranges 1219 Comment
  UC1198537  Linanthus filipes Joseph P. Tracy 1932-6-13 10156 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC213380  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1920-8-13 5349 Humboldt w of Klamath River (between Pine Creek and Tuley Creek, French Camp Ridge); Northern Coast Ranges, French Camp Ridge 914 Comment
  UC582589  Lindernia dubia var. dubia Joseph P. Tracy 1931-9-7 9649 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC57865  Linnaea borealis subsp. longiflora G. L. Clifton 1979-7-31 11390 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1239561  Linnaea borealis var. longiflora Joseph P. Tracy 1926-6-6 7579 Humboldt near summit on road w from Hoopa to Bair's Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  POM118645  Linum angustifolium Marcus E. Jones 1924-4-26 s.n. Humboldt Fortuna. Comment
  HSC69790  Linum bienne R. Kalal 1979-5-8 59 Humboldt 7th St. and Union Ave., in Arcata. 18 Comment
  UCD110597  Linum lewisii var. lewisii Ferd Ambrosini; J. W. Logan 1926-4-1 s.n. Humboldt Fr. Ranch to Fernando. Comment
  HSC27569  Listera caurina J. D. Ackerman, A. Montalvo 1973-6-29 71 Humboldt 2 mi. N of Manila Comment
  CAS-BOT-BC136462  Listera cordata Doris K. Kildale 1926-3-21 1592 Humboldt Field redacted by CAS, contact the data manager for more information 609 Comment
  HSC104405  Listera cordata Arthur C. Grupe 2013-4-20 11 Humboldt Near Lord Ellis Summit; along Snow Camp Rd., ~500 ft. SE of its junction with Old Hwy. 200 701 Comment
  HSC36649  Listera cordata var. nephrophylla J. D. Ackerman 1975-6-4 445 Humboldt 4 mi. E of Hwy. 101 on Bald Hills Rd., Redwood National Park 335 Comment
  UC1196368  Lithocarpus densiflorus Joseph P. Tracy 1923-5-13 6201 Humboldt Strongs Station Northern Coast Ranges (forest on Van Duzen River) 60 Comment
  RSA174011  Lithocarpus densiflorus var. densiflorus Robert F. Thorne 1957-9-2 19004 Humboldt Sandy margin of branch of the Eel River at Burlington State Park, just S of Weott. Comment
  UC1196501  Lithophragma affine Joseph P. Tracy 1921-4-30 6015 Humboldt Trinity River Valley near Willow Creek (Northern Coast Ranges); , Trinity River Valley, nr Willow Creek 152 Comment
  UC154138  Lithophragma affine Mrs. M. H. Manning Apr. 1902 Humboldt near Hupa; near Hupa Comment
  UC673076  Lobularia maritima Joseph P. Tracy 1940-10-5 16750 Humboldt near beach on isthmus leading to Trinidad Head Trinidad 3 Comment
  UC1223118  Logfia gallica Joseph P. Tracy 1950-6-23 18869 Humboldt 3 mi ne of Alderpoint; Doppyn Creek 213 Comment
  CAS-BOT-BC283403  Lolium multiflorum C. L. Hitchcock; C. V. Muhlick 1963-7-14 22906 Humboldt Along Eel River at Fern Bridge Comment
  UC50707  Lolium multiflorum Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5606 B Humboldt Arcata Comment
  HSC72637  Lolium perenne J. P. Smith 1977-7-3 9246 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  HSC10321  Lolium temulentum H. S. Logsdon 1964-5-14 41 Humboldt 12 mi. SE of Trinidad Head, Jct. Hwy. 299 and Hwy. 101 Comment
  SEINET200609 Image available Lolium temulentum J. P. Tracy 1935-5-25 13893 Humboldt Dobbyn Creek 152 Comment
  RSA254739  Lomatium californicum Thomas W. Nelson, James Nelson 1973-5-28 954 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1103401  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1924-3-9 6610 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1197164  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1942-6-23 17229 Humboldt 1 mi. w. Box Camp (on summit of ridge on Hoopa trail, Trinity Summit); Trinity Summit 1219 Comment
  HSC63835  Lomatium dasycarpum subsp. dasycarpum M. A. Baker 1979-6-26 911 Humboldt S facing ridge Comment
  UC906634  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1947-7-5 17779 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC74190  Lomatium dissectum var. dissectum M. A. Baker 1980-7-23 3151 Humboldt Near Orleans Mtn. 1859 Comment
  HSC56003  Lomatium macrocarpum Overton, Butler 1979-7-31 11454 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC63842  Lomatium macrocarpum M. A. Baker 1979-6-26 910 Humboldt S facing ridge Comment
  HSC97637  Lomatium macrocarpum Cara Witte 2007-5-21 58 Humboldt Board Camp Mountain. 1/2 mile south of intersection with 4N38 and National Forest 1. 1427 Comment
  HSC40717  Lomatium tracyi Thomas W. Nelson, Barbara Kelly 1977-6-15 3443 Humboldt Along old road to Horse Mountain ski area. 1372 Comment
  UC1463744  Lomatium tracyi Barbara Kelly 1978-5-1 592 Humboldt intersection with road sign saying Grouse Mt. L.O. 2 mi., Horse Mt. 15 mi. 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
  HSC58297  Lonicera conjugialis Walter Overton, Marvin Butler 1979-8-2 12570 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC240475  Lonicera hispidula John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  RSA43892  Lonicera hispidula var. vacillans H. M. Pollard 1948-7-21 s.n. Humboldt Near Orleans. Comment
  UC1239555  Lonicera hispidula var. vacillans Joseph P. Tracy 1915-6-27 4658 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek 60 Comment
  UC602569  Lonicera hispidula var. vacillans Joseph P. Tracy 1928-7-1 8479 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCD39986  Lonicera hispidula var. vacillans Rodney Gale Myatt 1971-9-22 1199 Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  RSA246894  Lonicera involucrata R. F. Thorne, P. C. Everett 1965-8-9 35301 Humboldt Big Lagoon. 3 Comment
  HSC59044  Lonicera involucrata var. ledebourii Thomas Wood 1979-4-20 123 Humboldt Along frontage Rd., parallel and E of Hwy. 101 at Patrick Creek Drive intersection, S of Patrick Creek. 6 Comment
  CAS-BOT-BC200913  Lotus Doris Kildale 1931-5-10 10680 Humboldt Snow Camp Comment
  HSC26447  Lotus corniculatus Brad Klipfel 1973-4-28 16 Humboldt Along Canyon Creek, SW of Korbel Comment
  UC1197309  Lotus crassifolius var. crassifolius Joseph P. Tracy 1911-7-7 3416 Humboldt between Willow Creek and Campbell Creek (vis ridge n of Willow Creek, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC80965  Lotus formosissimus T. S. Brandegee Jun 1891 Humboldt Eureka Comment
  HSC98244  Lotus humistratus H. E. Parks Aug 1941 24183 Humboldt Little River State Park Comment
  UC169330  Lotus humistratus Joseph P. Tracy 1912-7-26 3833 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1947582  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1919-5-31 5176 Humboldt near, at Lack Pond Willow Creek; Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  JEPS55790  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6271 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UCD106706  Lotus uliginosus R. Tofsrud 1947-6-29 s.n. Humboldt Near Loleta. Comment
  UCD106707  Lotus uliginosus R. Tofsrud 1948-7-1 s.n. Humboldt Between Fields Landing and Loleta. Comment
  HSC40946  Lotus unifoliolatus var. unifoliolatus Linda M. Barker 1976-6-1 1548 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1223411  Lotus yollabolliensis Joseph P. Tracy 1941-8-28 17048 Humboldt near Blake Lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC404767  Lupinus affinis Joseph P. Tracy 1925-5-31 7053 A Humboldt Bridgeville Comment
  SEINET202281  Lupinus albicaulis Joseph P. Tracy 1937-8-12 15656 Humboldt Snow Camp. 1402 Comment
  HSC32521  Lupinus andersonii Thomas W. Nelson, James Nelson 1973-5-28 955 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC44522  Lupinus andersonii Brad Klipfel 1973-7-1 129 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1716061  Lupinus arboreus M. S. Taylor 1990-8-22 6070 Humboldt Samoa Recreation Area, Samoa Peninsula, Staging Area Eureka Comment
  UCD106589  Lupinus arboreus Linda M. Barker 1976-5-13 1472 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD106592  Lupinus arboreus Linda M. Barker 1976-5-13 1494 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET10488497  Lupinus arboreus Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2501 Humboldt In the vicinity of a state park on the beach opposite mckinleyville. Vast Colony of yellow lupinus arboreus 3 Comment
  RSA246779  Lupinus arboreus var. arboreus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35166 Humboldt Samoa Dunes. 3 Comment
  HSC103986  Lupinus bicolor E. R. Fyer 2015-4-26 26 Humboldt Eureka; vacant lot off Waterfront Drive 3 Comment
  HSC57313  Lupinus latifolius Griswold, Butler 1979-7-10 6326 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC168977  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-6-9 3663 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC865316  Lupinus luteolus C. L. Hitchcock and J. S. Martin 1939-7-11 5421 Humboldt 65 mi e Arcata; e of Arcata 457 Comment
  HSC41637  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3583 Humboldt N of Alder Springs at head of N Fork of Conley Creek 1555 Comment
  HSC14852  Lupinus nanus H. E. Parks 1930-5-25 869 Humboldt Laribee Valley 762 Comment
  UC774984  Lupinus polyphyllus var. polyphyllus Carl B. Wolf 1937-8-11 9144 Humboldt 1/2 mi e Alton; e of Alton 21 Comment
  SEINET12165817  Lupinus propinquus J. T. Vale 1988-1 s.n. Humboldt nr Petrolia Comment
  HSC14863  Lupinus rivularis J. L. Baker 1965-4-28 29 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. 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
  HSC46925  Lupinus tracyi Brad Klipfel 1973-8-3 308 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA296811  Lupinus viridifolius Lincoln Constance 1934-5-29 714 Humboldt South Fork Eel River, Upper Look Prairie. 366 Comment
  HSC56454  Luzula comosa Griswold, Butler 1979-7-12 7231 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC75361  Luzula comosa J. O. Sawyer, A. Erickson 1979-7-15 3416 Humboldt Adroni Research Natural Area, slopes along Aikins Creek 457 Comment
  HSC40967  Luzula comosa Linda M. Barker 1976-6-14 1596 Humboldt 3 mi. W of Arcata, Lanphere Dunes Comment
  HSC98641  Luzula comosa Cara Witte 2007-6-1 176 Humboldt Along Forest Service 5N10. 1.75 miles east of intersection with National Forest 1. 1365 Comment
  HSC83992  Luzula parviflora L. P. Janeway 1983-5-1 253 Humboldt Along dirt rd. E of HSU water tank 61 Comment
  SEINET8717658 Image available Luzula parviflora H. E. Parks, S. T. Parks 1952-1 22446 Humboldt Bishop Pine Lodge. Trinidad. 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
  UC503071  Lycopodiella inundata Joseph P. Tracy 1928-9-8 8504 Humboldt in peat bog Big Lagoon 6 Comment
  JEPS86070  Lycopodium clavatum Wayne Roderick 1966-8-8 Humboldt Georgia-Pacific property near Big Lagoon Comment
  JEPS63277  Lycopus americanus Joseph P. Tracy 1924-8-31 6853 Humboldt Klamath R. at mouth of Bluff Creek; Klamath R. 91 Comment
  UC1222701  Lysichiton americanus Joseph P. Tracy 1950-7-6 18992 Humboldt lower end of Burr Valley Comment
  UC1198469  Lythrum hyssopifolia Joseph P. Tracy 1942-6-15 17117 Humboldt near Redcrest Resort (Englewood); Englewood 91 Comment
  UC176444  Madia glomerata J. P. Tracy 1902-8-10 1769 Humboldt immediate vicinity Eureka 0 Comment
  UC176779  Madia gracilis Joseph P. Tracy 1908-6 2694 Humboldt opposite Buck Mountain; Valley of Van Duzen River 762 Comment
  JEPS40411  Madia gracilis W. L. Jepson 1902-7-1 1967 Humboldt at Berry's Ranch; Redwood Creek Comment
  UC582409  Madia gracilis Joseph P. Tracy 1937-7-29 15596 Humboldt w slope near top at Hyampom; South Fork Mountain 1676 Comment
  JEPS7506  Madia sativa Joseph P. Tracy 1927-6-18 8176 Humboldt sw slope slopes fronting the ocean 3 mi s point of cape; Northern Coast Ranges, Cape Mendocino 3 Comment
  UC545825  Maianthemum dilatatum H. E. Parks May, 1932 4289 Humboldt Trinidad, Bishop Pine Lodge Comment
  HSC57938  Maianthemum racemosum subsp. amplexicaule Gilbert Muth 1979-8-1 11600 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  CAS-BOT-BC510675  Maianthemum racemosum subsp. amplexicaule L. B. Kildale 1930-8-3 10337 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  HSC100563  Maianthemum racemosum subsp. amplexicaule Carl C. Marshall Apr 1886 128 Humboldt Damp woods. Comment
  HSC79371  Maianthemum racemosum subsp. amplexicaule Kenneth Clark 1980-3-27 555 Humboldt On divide of N and S Forks of Dead Man's Gulch 122 Comment
  HSC63688  Maianthemum stellatum Richard Spjut 1979-4-5 5450 Humboldt 6 mi. N or Petrolia along Hwy. along beach Comment
  RSA377722  Maianthemum stellatum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3509 Humboldt Alder Springs 1524 Comment
  POM98598  Malacothrix floccifera F. W. Peirson 1926-7-14 s.n. Humboldt Sandy shores of Eel River about 5 miles south of Scotia Comment
  UC303165  Malus fusca Joseph P. Tracy 1923-6-20 6304 Humboldt White Thorne Valley; Northern Coast Ranges 304 Comment
  UC484032  Malus fusca C. B. Wolf 1930-10-26 Humboldt s edge Big Lagoon (near the Redwood Highway) 3 Comment
  UC902195  Malva nicaeensis Joseph P. Tracy 1946-11-10 17662 Humboldt Trinidad 3 Comment
  UCD116540  Malva verticillata Paul Holzberger 1981-8-24 s.n. Humboldt 1251 Williams Street, Eureka. Comment
  HSC65125  Marah oregana J. P. Smith 1971-10-6 4968 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC60078  Marah oregana M. A. Baker 1977-6-6 371 Humboldt Hoopa Comment
  HSC73463  Marah oregana Grunert 37 Humboldt Jolly Giant Creek, Arcata city limit, on Jolly Giant Rd. near HSU Comment
  HSC48059  Medicago arabica Thomas W. Nelson 1978-4-24 3889 Humboldt Eureka, along F St. between Orchard and Willow St. Comment
  UC1197432  Medicago lupulina Joseph P. Tracy 1915-7-25 4662 Humboldt Eureka Northern Coast Region 0 Comment
  HSC99797  Melianthus major Gordon Leppig 2005-1-6 2201 Humboldt PALCO timberlands, Van Duzen watershed, Fox Creek Drainage, 10 m E of Fox Creek Rd. on Rd. L35 60 Comment
  UC180729  Melica geyeri Joseph P. Tracy 1913-6-20 4230 Humboldt lower nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UCD87523  Melica harfordii P. B. Kennedy 1916-6-1 s.n. Humboldt Eureka. Comment
  UC526919  Melica subulata Joseph P. Tracy 1933-5-28 12416 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UCD88684  Melica subulata H. S. Yates 1936-6-23 5878 Humboldt 4 miles NNE of Cathey's Peak. Comment
  UCSC000054  Melica subulata August L. Hormay 1932-5-11 s.n. Humboldt Korbel Comment
  UC180483  Melica torreyana Joseph P. Tracy 1914-5-14 4451 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  HSC46021  Melilotus albus Catherine Chin 1978-8-5 92 Humboldt 7th & A St., Arcata Comment
  UC673064  Melilotus albus Joseph P. Tracy 1938-7-15 16081 Humboldt Van Duzen Eel River (gravel bar at mouth) 15 Comment
  RSA167274  Melilotus albus Joseph P. Tracy 1949-7-7 18336 Humboldt Blue Slide, on Van Duzen River. Comment
  JEPS63457  Mentha aquatica Joseph P. Tracy 1927-10-8 8388 Humboldt Arcata Bottom 9 Comment
  JEPS63456  Mentha aquatica J. P. Tracy 1912-1 Humboldt near Eureka (Loleta Pond); Loleta Pond Comment
  JEPS63479  Mentha canadensis W. L. Jepson 1936-8-7 17936 Humboldt near Arcata (Mad River); Mad River Comment
  UC1191796  Mentha canadensis Malcolm A. Nobs, S. Galen Smith 1949-8-3 1186 Humboldt at southern outskirts of Eureka Comment
  HSC90755  Mentha pulegium Gail Newton 1983-8-21 3856 Humboldt Elk River Wildlife Area, Eureka. Comment
  BLMAR115  Micranthes californica Jennifer Anthony-Wheeler 1995-3-15 115 Humboldt King range, growing on N.end of campground shaded under white oak 121 Comment
  JEPS40640  Micropus californicus var. californicus Lincoln Constance 1934-6-15 891 Humboldt on summit, a few yds s of lookout Grasshopper ridge; Bull Creek, South Fork Eel River Comment
  UC1199341  Micropus californicus var. californicus Joseph P. Tracy 1925-5-31 7052 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC1239522  Microseris douglasii subsp. douglasii Joseph P. Tracy 1938-6-9 15887 Humboldt 3 mi w Harris 914 Comment
  CAS-BOT-BC322680  Microseris laciniata Volney Rattan 1879-6-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC322681  Microseris laciniata Harley P. Chandler 1901-6-1 1408 Humboldt Klamath River 243 Comment
  CAS-BOT-BC322686  Microseris laciniata M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  JEPS13224  Microseris laciniata subsp. leptosepala W. L. Jepson 1902-6 1942 Humboldt Redwood Creek, Green Point Ranch Comment
  UC582732  Microseris nutans Joseph P. Tracy 1933-7-9 12653 Humboldt Brannan Mountain North Coast Ranges 1066 Comment
  HSC75455  Microsteris gracilis J. O. Sawyer 1980-7-18 3596 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  SEINET200379  Microsteris gracilis J. P. Tracy 1930-5-4 8692 Humboldt Larrabee Valley 701 Comment
  JEPS10486  Mimulus arvensis Joseph P. Tracy 1926-5-2 7435 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC147910  Mimulus breweri Joseph P. Tracy 1908-6 2844 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  UC582604  Mimulus breweri Joseph P. Tracy 1932-7-10 10375 Humboldt Trinity Summit 1584 Comment
  SEINET3365865 Image available Mimulus breweri Joseph P. Tracy 1932-7-10 10375 .5 Humboldt Trinity Summit Corral Prairie in wet meadow 1585 Comment
  UC1196836  Mimulus grandis J. P. Tracy 1901-6-16 1139 Humboldt immediate vicinity Eureka (near Bucksport) 0 Comment
  UC147914  Mimulus grandis J. P. Tracy 1900-8-5 911 Humboldt immediate vicinity Eureka 0 Comment
  JEPS10474  Mimulus guttatus Lincoln Constance 1934-5-26 683 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  RSA18014  Mimulus guttatus Carl B. Wolf 1927-8-22 779 Humboldt Big Lagoon. Comment
  HSC20730  Mimulus guttatus J. R. Kahl 1962-5-11 28 Humboldt 2 mi. S of Trinidad along Hyw. 101 Comment
  HSC22508  Mimulus guttatus W. B. Thompson 1967-7-20 17 Humboldt Along creek W of the access road to Clam Beach Co. Park Comment
  UC582481  Mimulus inodorus Joseph P. Tracy 1934-8-6 13561 Humboldt near Blue Lake; Mad River 15 Comment
  UC41883  Mimulus kelloggii Harley P. Chandler June 1901 1480 Humboldt Klamath River North Coast Ranges 426 Comment
  UC41884  Mimulus kelloggii Chesnut and Drew July 1888 Humboldt Pilot Ridge Comment
  HSC100672  Mimulus microphyllus Carl C. Marshall Apr 1887 387 Humboldt Supply Creek, near Hoopa. Comment
  HSC55736  Mimulus moschatus G. L. Clifton, Griswold 1979-7-26 10233 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC99591  Mimulus moschatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 260 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC1173697  Mimulus pilosus Joseph P. Tracy 1939-9-24 16502 Humboldt near Blue Lake; Mad River 15 Comment
  HSC96198  Mimulus pulsiferae Kaylea Eickhoff, Cara M. Witte 2005-6-15 11 Humboldt 14.1 mi. S of Hwy. 299 on NF1, 0.25 mi. NE of Grouse Mtn. 1400 Comment
  CAS-BOT-BC388630  Minuartia douglasii Carl B. Wolf 1937-6-14 8822 Humboldt North Coast Range, Kneeland Prairie 822 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
  UC176959  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1912-7-31 3926 Humboldt Buck Mountain Northern Coast Ranges (near the summit) 1676 Comment
  CAS-BOT-BC181090  Minuartia nuttallii var. gregaria Joseph P. Tracy 1935-7-30 14353 Humboldt Salmon Summit 1767 Comment
  HSC4063  Minuartia pusilla D. E. Anderson 1963-5-19 2469 Humboldt Kneeland Area Comment
  SDSU9556  Mitella caulescens D. F. Howe 1963-8-7 3706 Humboldt 23 miles W of west entrance to Six Rivers National Forest on #299. 213 Comment
  HSC55346  Mitella diversifolia Griswold, Butler 1979-7-12 7212 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC20238  Mitella ovalis D. E. Anderson 1964-2-23 2903 Humboldt 7 mi. E of Carlotta along Hwy. 36; above Van Duzen River 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
  JEPS49672  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC492220  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC72792  Moehringia macrophylla M. A. Baker 1980-6-16 1931 Humboldt Near Monks Camp 109 Comment
  UC13618  Moehringia macrophylla J. Burtt Davy 1899-6-18 5619 Humboldt back Korbel (Bald Mt.); North Coast Ranges, , back of Korbel Comment
  UCD99638  Mollugo verticillata Freed W. Hoffman 1946-8-16 1852 Humboldt in Russian River at Korbel. Comment
  SEINET3996427 Image available Monardella odoratissima Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 2225 Comment
  CAS-BOT-BC220257  Monardella sheltonii Harley P. Chandler 1901-6-1 1522 Humboldt Klamath River 457 Comment
  CDA15839  Monardella sheltonii P. Haggard 1999-10-18 PDR 018001 Humboldt North Coast Ranges; Vicinity of Blue Lake off Hwy 299 +- 3 mi. E of Arcata. USFS Rd. #1 0 Comment
  CAS-BOT-BC220516  Monardella villosa Marcus E. Jones 1931-7-16 28821 Humboldt Junction, East of Arcata Comment
  CAS-BOT-BC220518  Monardella villosa L. R. Abrams; R. C. Bacigalupi 1922-6-25 8221 Humboldt Camp 6 mi north of Garberville Comment
  CAS-BOT-BC220519  Monardella villosa Hubert O. Jenkins 1943-8-1 s.n. Humboldt In dry rocky bed of Eel River, Richardson Grove Comment
  CAS-BOT-BC318614  Monardella villosa L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road. Comment
  UC2035937  Monardella villosa C. Epling Aug 1933 Humboldt Richardson Grove Comment
  RSA0022806  Monardella villosa Carl B. Wolf 1937-8-13 9223 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC2035936  Monardella villosa subsp. villosa C. Epling, Wm. Robison 1935-7-24 Humboldt Dyerville Comment
  UC34369  Monotropa hypopitys Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UC162352  Montia fontana Joseph P. Tracy 1904-4-3 2004 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  HSC17672  Montia parvifolia C. E. Fellows 1957-4-27 128 Humboldt 1 mi. W of Honeydew Comment
  UC526744  Muhlenbergia filiformis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8920 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (in wet meadow) 1676 Comment
  JEPS70788  Myosotis discolor Joseph P. Tracy 1936-5-17 14809 Humboldt Lawrence Creek at crossing of Kneeland Rd.; Lawrence Creek 457 Comment
  SEINET12275689  Myosotis laxa J. P. Tracy 1942-1 17072 Humboldt Mad River near bridge on coast highway Comment
  POM160282  Myrica californica Joseph P. Tracy 1925-12-13 7335 Humboldt Big Lagoon 6 Comment
  HSC91593  Narcissus tazetta E. Mackey 1986-7-21 Humboldt Patrick's Point State Park near Ceremonial Rock. Comment
  UCD87653  Nassella pulchra A. H. Murphy 1951-3-30 s.n. Humboldt Mattole Valley. Along roadside near Mattole River Grange Hall. Comment
  UC908512  Navarretia atractyloides Joseph P. Tracy 1925-7-12 7206 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  SEINET200632  Navarretia atractyloides Joseph P. Tracy 1927-8-7 8307 Humboldt Willow Creek school house 152 Comment
  UC133668  Navarretia atractyloides Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5870 Humboldt Hoopa North Coast Ranges Comment
  JEPS70294  Navarretia divaricata Joseph P. Tracy 1932-7-11 10395 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC82413  Navarretia divaricata Thomas W. Nelson 1979-7-11 5033 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  SEINET196701  Navarretia leucocephala Joseph P. Tracy 1928-6-24 8476 Humboldt East Ranch, between Middle and North Yager Creeks. 762 Comment
  JEPS69509  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1930-7-10 8864 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  HSC17149  Navarretia squarrosa W. D. Stevens 1967-7-16 43 Humboldt Along dirt road from old Hwy. 101 to top of N bank of Mad River Comment
  JEPS70472  Navarretia squarrosa Joseph P. Tracy 1921-8-21 5935 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC906677  Navarretia squarrosa Joseph P. Tracy 1942-7-18 17282 Humboldt Garberville 152 Comment
  JEPS70475  Navarretia squarrosa Lincoln Constance 1934-6-25 931 Humboldt across road Collin's Englewood Campground (on e side of road at Englewood, main Eel River); Eel River, Bull Creek Region, Englewood Comment
  SEINET8729374 Image available Navarretia squarrosa H. E. Parks 1952-1 s.n. Humboldt Trinidad Comment
  UCSB30610  Navarretia squarrosa Edwards, David 1974-7-13 Humboldt open field to SW. of intersection of Fickle Hill Rd. and Hill St; ca. 1/3 mi. E. of U.S. 101, Arcata 36 Comment
  HSC45622  Nemophila menziesii Diane L. Reed 1978-4-22 28 Humboldt Tish Tang Campground, 5 miles north of Willow Creek on State Hwy. 96. Comment
  UCR37590  Nemophila menziesii var. atomaria L. P. Janeway 1983-4-16 233 Humboldt Near the old Hwy 299 on W side of Berry Summit 823 Comment
  HSC26339  Nemophila parviflora Thomas W. Nelson 1971-3-30 360 Humboldt Beside Williams Creek near Ferndale Comment
  RSA254745  Nemophila parviflora var. parviflora Thomas W. Nelson, James Nelson 1973-5-28 934 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC146184  Nemophila pedunculata Joseph P. Tracy 1906-5-6 2434 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UC176993  Nemophila pedunculata Joseph P. Tracy 1913-5-4 4065 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1103812  Nemophila pedunculata Joseph P. Tracy 1923-2-25 6147 Humboldt Cummings Creek Northern Coast Ranges, , at Cummings Creek (Carlotta) 60 Comment
  JEPS12381  Nicotiana quadrivalvis Joseph P. Tracy 1930-10-19 9223 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  CAS-BOT-BC60546  Noccaea fendleri subsp. californica Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie. 853 Comment
  UCD110176  Notholithocarpus densiflorus Joseph M. DiTomaso 1976-3-28 351 Humboldt West of Lord Ellis summit on Highway 299 between Arcata and Willow Creek. 762 Comment
  UCR45372  Notholithocarpus densiflorus var. densiflorus Barry Silver 1986-4-13 505 Humboldt Bair Road, 6.4 mi. WSW of Hoopa Comment
  RSA0013606  Nuphar lutea subsp. polysepala C. B. Wolf 1937-9-14 9353 Humboldt Town of Blue Lake. 15 Comment
  HSC18701  Oemleria cerasiformis J. L. Baker 1965-3-13 13 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. Comment
  UC1197136  Oenanthe sarmentosa Joseph P. Tracy 1932-9-17 10802 Humboldt Arcata Bottom 15 Comment
  UC1197137  Oenanthe sarmentosa Joseph P. Tracy 1927-7-17 8265 Humboldt Butler Valley 152 Comment
  JEPS35818  Oenanthe sarmentosa Rimo Bacigalupi and L. R. Heckard 1964-7-28 8964 Humboldt 1/8 mi. above Shelter Cove (near water tanks for supplying Shelter Cove) Comment
  RSA46821  Oenanthe sarmentosa Doris K. Kildale 1925-7-28 1094 Humboldt [Unspecified] Comment
Read comments
Mar 22 2014
  UCD127756  Oenanthe sarmentosa Collector Unknown 1932-7-1 s.n. Humboldt California Seed Lab. Comment
  HSC100581  Oenothera cheiranthifolia Carl C. Marshall May 1885 41 Humboldt Peninsula. Comment
  HSC16486  Oenothera glazioviana Jerry Parker 1968-10-1 78 Humboldt 0.5 mi. N of Dows Prairie School Comment
  CAS-BOT-BC499865  Orobanche fasciculata L. R. Abrams 1918-6-15 7119 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  UC35314  Orobanche pinorum Chestnut and Drew 1888-7-20 Humboldt Pilot Creek. Comment
  HSC34915  Orobanche uniflora Thomas W. Nelson, James Nelson 1975-5-24 1843 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC500261  Orobanche uniflora subsp. occidentalis Doris K. Kildale 1927-5-20 3216 Humboldt Bug Creek 792 Comment
  HSC48857  Orthilia secunda Brad Klipfel 1973-7-15 200 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC100675  Orthocarpus erianthus Carl C. Marshall Jun 1887 468 Humboldt Vicinity of Garberville. Comment
  RSA523835  Orthocarpus faucibarbatus var. albidus Gordon H. True Jr. 1936-5-12 475 Humboldt 2 miles S of Eureka. 15 Comment
  HSC99397  Osmorhiza berteroi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 46 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS14168  Osmorhiza berteroi Lincoln Constance 1934-5-26 649 Humboldt near Founder's Tree; South Fork Eel River, Bull Creek Region, North Dyerville, Fl 48 Comment
  UC314578  Osmorhiza occidentalis Joseph P. Tracy 1926-5-15 7474 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA254742  Osmorhiza purpurea Thomas W. Nelson, James Nelson 1973-5-28 945 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC16717  Oxalis articulata subsp. rubra William J. Ferlatte 1963-4-27 23 Humboldt Waste place near 11th and B street, in Arcata. Comment
  CHSC94937  Oxalis oregana K. Lang; J. Lang 2005-3-16 27 Humboldt Trinidad, No. California coast. 51 Comment
  SBBG25583  Oxalis oregana E. R. Blakley 1966-8-17 6794 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  SEINET3347662 Image available Oxalis oregana Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15204 Humboldt Bolling Grove State Park; unspecified Comment
  SEINET3347146 Image available Oxalis suksdorfii Joseph P. Tracy 1930-6-22 8796 Humboldt Redwood Creek, at Berry's Comment
  HSC96576  Packera bolanderi var. bolanderi Gordon Leppig, Maralyn A. Renner 2005-6-7 2245 Humboldt Pacific Lumber Co. land, Redwood House Rd., Heley Creek Watershed 320 Comment
  CDA2147  Panicum miliaceum T. R. Haig 1975-8-27 Humboldt Korbel. 0 Comment
  RSA624795  Parapholis incurva Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-25 788 Humboldt Big Lagoon State Park. 2 Comment
  SEINET200959 Image available Parapholis incurva Joeseph P. Tracy 1937-6-5 15328 Humboldt Mouth of Little River. 3 Comment
  UC1220311  Paspalum distichum D. E. Anderson 1963-9-29 2846 Humboldt about 5 1/2 mi n Weitchpec (Fish Lake); Fish Lake Comment
Read comments
Jun 18 2011
  HSC98738  Paxistima myrsinites Cara Witte 2008-5-26 662 Humboldt Along Forest Service Road 5N10. 1/2 mile south of intersection with Friday Ridge Road. 1487 Comment
  BLMAR493  Pectiantia ovalis Jennifer Wheeler 2009-4-30 493 Humboldt King range, Hidden Valley trail; trail start Comment
  HSC104037  Pedicularis densiflora C. Reynolds 2015-3-21 23 Humboldt Willow Creek; at the entrance to Camp Kimtu 159 Comment
  UC146230  Pedicularis densiflora Joseph P. Tracy 1908-6-8 2637 Humboldt Kneeland Praire; Northern Coast Ranges 762 Comment
  HSC20928  Pedicularis densiflora R. A. Rasp 1964-4-25 33 Humboldt 2.5 mi. E of Willow Creek off of Hwy. 299 Comment
  UC179970  Pedicularis groenlandica Joseph P. Tracy 1914-7-4 4533 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges 1066 Comment
  UC582554  Pedicularis racemosa Joseph P. Tracy 1930-7-16 8917 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC71289  Pellaea brachyptera Chesnut and Drew 1888-7-21 Humboldt Pilot Ridge Comment
  HSC56314  Penstemon anguineus Walter Overton, Marvin Butler 1979-8-2 12651 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  JEPS7206  Penstemon anguineus P. E. Goddard 1906-6 679 Humboldt Lasseck Pk Comment
  BLMAR213  Penstemon anguineus Jennifer Anthony-Wheeler 1996-7-9 213 Humboldt Pilots ridge., open gen. Loggged areas of +/- conf. Forest 1402 Comment
  JEPS26253  Penstemon anguineus Joseph P. Tracy 1940-7-7 16671 Humboldt Grouse Mt. 1524 Comment
  RSA33403  Penstemon heterophyllus subsp. purdyi Doris K. Kildale 1925-5-30 860 Humboldt Bucilana Bridge. Comment
  UC146234  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1908-6 2804 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC902217  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1942-7-2 17369 Humboldt opposite Buck Mountain (Dinsmore's); along Van Duzen River, Dinsmore's 762 Comment
  NY627415  Penstemon newberryi var. berryi R. W. Spellenberg 1990-7-9 10229 Humboldt Extreme east edge of county, 6 air miles west-northwest of Hyampom, 36 miles south of CA Highway 299 and Berry Summit on USFS Road 1, ca. 5 miles north of Blake Mountain on South Fork Mountain. 1676.4 Comment
  UC577416  Penstemon newberryi var. berryi Joseph P. Tracy Jul 16-19 1930 8953 Humboldt South Fork Mountain, open glades along summit near Blake lookout Northern Coast Ranges 1737 Comment
  HSC99528  Penstemon procerus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 192 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  HSC28928  Pentagramma triangularis Diane Johnson 1972-12-4 Humboldt Butler Valley near Big Bend Rd. Comment
  HSC37502  Pentagramma triangularis J. D. Ackerman 1974-5-25 264 Humboldt 0.25 mi. S of Lufenholtz Beach off Scenic Dr. between Moonstone and Trinidad Comment
  SEINET200760  Perideridia gairdneri Joseph P. Tracy 1948-9-5 18167 Humboldt Happy Camp Mountain. In Trinity Summit Range 6 miles NE of Hawkins Bar. 1280 Comment
  JEPS22585  Perideridia gairdneri subsp. gairdneri Joseph P. Tracy 1941-8-24 17038 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC55993  Perideridia parishii subsp. latifolia Overton, Butler 1979-7-31 11423 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC99811  Perideridia parishii subsp. latifolia G. L. Clifton, Terry Griswold 1979-8-1 12020 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC24009  Persicaria maculosa R. A. Vanbianchi 1971-9-10 85 Humboldt Along Fiedbrook Rd. .5 mi. from jct. with Hwy. 299 Comment
  HSC25526  Persicaria maculosa Norman Dennis 1965-6-8 109 Humboldt Samoa Peninsula along W side of Humboldt Bay Comment
  HSC97674  Petasites frigidus var. palmatus Gordon Leppig 1998-3-9 711 Humboldt Arcata, West End Rd., 3 mi. W of Ericson Way 30 Comment
  UC129570  Petasites frigidus var. palmatus Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC64138  Phacelia bolanderi J. O. Sawyer, J. P. Smith, J. Cole 1977-7-2 3052 Humboldt Rd. 11N17 between Dagsaw Springs and Divide Lake 793 Comment
  HSC65662  Phacelia bolanderi J. P. Smith, Steve Selva 1970-6-14 3821 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  RSA170270  Phacelia bolanderi Joseph P. Tracy 1916-5-31 4704 Humboldt Stitz Creek. Along Eel River South Fork to Scotia. 61 Comment
  BLMAR698  Phacelia ciliata Jennifer Wheeler 2011-6-15 698 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  HSC102541  Phacelia hastata subsp. hastata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1527 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  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
  HSC99465  Phacelia heterophylla subsp. virgata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 119 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS2079  Phacelia heterophylla subsp. virgata Lincoln Constance 1934-5-29 731 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek region 365 Comment
  CDA40417  Phacelia heterophylla subsp. virgata Kaylea Eickhoff, Cara M. Witte 2005-6-8 6 Humboldt Northwestern California; 1.7 miles south of Hwy 299 on Titlow Hill Road. Comment
  HSC58319  Phacelia mutabilis Overton, Butler 1979-8-2 12609 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1051815  Phacelia nemoralis subsp. oregonensis C. R. Bell May, 1951 1098 Humboldt bank below US Hwy 101 2.9 mi n Mendocino County line Comment
  UC902065  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1949-7-7 18333 Humboldt brushy roadsides Table Bluff 91 Comment
  RSA167286  Phalaris californica Joseph P. Tracy 1951-6-26 19599 Humboldt on Butter Valley Road, about 2 miles east of junction of Kneeland Prairie Road Comment
  HSC35714  Philadelphus californicus Thomas W. Nelson 1975-10-12 2235 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC49959  Philadelphus californicus Maralyn O'Meara 1974-7-17 555 Humboldt Along E border Comment
  CAS-BOT-BC76574  Philadelphus lewisii Alice Eastwood 1921-7-21 10671 Humboldt Van Duzer River, on the road. Comment
  UC154152  Philadelphus lewisii Mrs. M. H. Manning 1900-1 Humboldt Hupa Comment
  HSC58654  Phleum alpinum G. L. Clifton, Griswold 1979-7-31 11726 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1347189  Phlox adsurgens Alice Eastwood and John Thomas Howell 1937-6-24 4869 Humboldt 5 mi e Berry; Summit Comment
  UC1191119  Phlox adsurgens Joseph P. Tracy 1925-6-7 7058 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  HSC102076  Phlox diffusa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 978 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  JEPS71120  Phlox gracilis Joseph P. Tracy 1930-5-4 8691 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC906692  Phlox gracilis Joseph P. Tracy 1942-6-23 17403 Humboldt near Box Camp; Trinity Summit 1524 Comment
  SEINET3290566 Image available Phyllospadix torreyi H. E. Parks 1927-8-4 s.n. Humboldt Trinidad Comment
  SEINET11763301  Phyllospadix torreyi H. E. Parks 1933-1 s.n. Humboldt Spruce Cove, Trinidad Comment
  HSC99286  Physocarpus capitatus T. Jimerson, J. Pageau 1979-6-22 609 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  CAS-BOT-BC78199  Picea sitchensis L. R. Abrams 1922-6-25 8247 Humboldt near South Bay Comment
  NY951520  Picea sitchensis D. H. Goldman 2004-10-30 2901 Humboldt West side of Eel River Drive, about 0.4 mile S of the intersection with Hookton Road and the entrance ramp to Rt. 101 21 Comment
  SBBG24465  Picea sitchensis J. W. Howe -Mar-1938 Humboldt [label without specific locality] Comment
  SDSU1550  Picea sitchensis D. F. Howe 1961-8-1 3110 Humboldt Three miles north of Arcata on #101. Comment
  UC484045  Picea sitchensis Carl B. Wolf 1930-10-28 Humboldt 5 mi s Ferndale (on road to Petrolia) 152 Comment
  UC55647  Picea sitchensis J. P. Tracy 1901-2-3 Humboldt immediate vicinity of Eureka 0 Comment
  UCR28004  Picea sitchensis A. C. Sanders 1981-8-6 2305 Humboldt Russ Park, just south of Ferndale. 61 Comment
  CAS-BOT-BC73151  Pinus jeffreyi Joseph P. Tracy; H. E. Parks 1934-6-14 11030 Humboldt Horse Mountain 1432 Comment
  HSC90184  Pinus lambertiana Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-22 56 Humboldt USFS Rd. 5N10, 2.4 mi. from its intersection with Rd. 6N08, Bulk Collection # 233 1341 Comment
  RSA46498  Pinus monticola Doris K. Kildale 1927-3-27 2998 Humboldt 1 mile north of Trinidad. Comment
  HSC70642  Pinus ponderosa R. York 1980-5-18 591 Humboldt Near Black Mtn. 792 Comment
  UC1196427  Piperia elongata Joseph P. Tracy 1918-9-1 5098 Humboldt Eureka, at the Stephen Hill place Northern Coast Ranges Comment
  UC1196426  Piperia transversa Edith and Ethel Tracy 1900-7-31 909 Humboldt opposite Eureka; Samoa, Ocean Beach Comment
  HSC24556  Pityopus californicus Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  CAS-BOT-BC458133  Pityopus californicus Volney Rattan no date on label; presented 1903 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC227973  Plagiobothrys Doris K. Kildale 1926-6-4 2095 Humboldt Big Lagoon Comment
  POM174072  Plagiobothrys bracteatus Joseph P. Tracy 1918-7-5 5010 Humboldt White Thorn Valley. 305 Comment
  UC525608  Plagiobothrys bracteatus Joseph P. Tracy 1927-5-14 8029 Humboldt moist low place at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC552841  Plagiobothrys bracteatus Joseph P. Tracy 1935-5-30 13916 Humboldt Willow Creek Trinity River Valley (bed of dried-up pond) 152 Comment
  UC175581  Plagiobothrys nothofulvus Mrs. M. H. Manning 1902-4-14 Humboldt near Hupa Comment
  UC249518  Plagiobothrys nothofulvus Joseph P. Tracy 1922-4-30 6019 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1239609  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-9 14884 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  JEPS79948  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17115 Humboldt Englewood Prairie 91 Comment
  UC1222219  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-12 17112 Humboldt Prairie Creek at the prairie at Elk Grove; Prairie Creek, Elk Grove Comment
  UC180174 Image available Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-14 4469 Humboldt Fort Seward Northern Coast Ranges; Fort Seward, Humboldt Co. 121 Comment
  RSA178574  Plagiobothrys scouleri Joseph P. Tracy 1949-6-25 18353 Humboldt Trinity Summit; Meadow at Box Camp. 1463 Comment
  HSC84042  Plantago lanceolata C. J. Thomas 1983-5-9 29 Humboldt Adjacent to Hwy. overpass walkway near HSU 23 Comment
  HSC99488  Plantago lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 147 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
  SJSU11078  Plantago maritima H. T. Harvey 1977-7-5 602 Humboldt Elk R Spit, Humboldt Bay Comment
  HSC16857  Plantago maritima C. E. Fellows 1965-5-17 79 Humboldt Luffenholtz Beach County Park Comment
  SEINET4086441  Plantago purshii O. M. Clark 1932-1 1174 Humboldt South Eureka. Comment
  RSA43877  Plantago purshii var. oblonga H. M. Pollard 1948-8-3 s.n. Humboldt New Orleans. Comment
  HSC96478  Platanthera dilatata var. leucostachys Gordon Leppig 1997-6-19 442 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC46168  Platanthera dilatata var. leucostachys J. P. Smith, Steve Selva 1970-6-30 4123 Humboldt Comment
  HSC97555  Platanthera dilatata var. leucostachys Cara Witte 2007-6-1 174 Humboldt Along Forest Service 5N10. 1.5 miles east of intersection with National Forest 1. 1365 Comment
  CAS-BOT-BC91635  Platystemon californicus Joseph P. Tracy 1932-6-26 10266 Humboldt Northern Coast Region.. Valley of South Yager Creek. 762 Comment
  UC169077  Plectritis brachystemon Harley P. Chandler May, 1901 1149 B Humboldt North Coast Ranges, Humboldt Bay Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  UC1239580  Plectritis congesta Joseph P. Tracy 1904-4-24 2024 Humboldt Ocean Beach at Humboldt Bay Ocean Beach Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  RSA178587  Plectritis congesta var. congesta Joseph P. Tracy 1950-5-6 18639 Humboldt At my cabin. Trinity River Valley, at Willow Creek. Comment
  HSC70751  Pleuricospora fimbriolata R. York 1980-5-17 532 Humboldt Near Le Perron Peak 1066 Comment
  HSC57304  Pleuropogon refractus G. L. Clifton 1979-7-31 11859 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  RSA336495  Pleuropogon refractus Paul But 1975-4-1 P 12 Humboldt Along Jacoby Creek Road, Jacoby Creek, about 3 miles N of Eureka Comment
  RSA10141  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt Klamath Mountains, Trinity Summit, Head of Brett Hole 1829 Comment
  HSC10686  Poa confinis J. P. Tracy, H. E. Parks 1927-4-24 7947 Humboldt Eureka near bay shore. 9 Comment
  HSC10701  Poa douglasii T. O. Preston 1963-5-6 42 Humboldt Sand dunes Comment
  UC525628  Poa howellii Joseph P. Tracy 1929-7-4 8619 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  HSC10721  Poa kelloggii D. E. Anderson 1965-5-6 3622 Humboldt 4.8 mi. W of bridge over N Fork of Mad River, along Hwy. 299 Comment
  HSC98530  Poa pratensis subsp. pratensis Cara Witte 2007-7-8 442 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  CAS-BOT-BC235981  Poa secunda subsp. secunda A. G. Vestal 1937-6-23 s.n. Humboldt Kneeland Prairie Comment
  HSC39232  Poa secunda subsp. secunda D. E. Anderson, J. P. Smith 1971-6-18 - 1081 Humboldt Horse Mtn. Comment
  UCD92047  Poa secunda subsp. secunda Joseph P. Tracy 1951-6-26 19543 Humboldt 2 miles W of the Snow Camp. At Beck's Place, Hydesville. (Same place from which Mr. Murphy's (UC Davis) test plots of this species were taken). 1219 Comment
  HSC10810  Poa unilateralis J. P. Tracy 1927-6-8 8113 Humboldt Trinidad 61 Comment
  JEPS69885  Polemonium carneum Joseph P. Tracy 1928-5-20 8440 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  RSA21204  Polemonium carneum C. B. Wolf 1937-8-10 9093 Humboldt Big Lagoon, so. side, w. side of Redwood Highway 6 Comment
  HSC32032  Polycarpon tetraphyllum D. E. Anderson 1974-8-1 Humboldt 6th St. in Eureka Comment
  HSC77513  Polycarpon tetraphyllum K. Berg 1984-5-6 567 Humboldt Stone Lagoon Spit. Comment
  RSA75592  Polygala californica Albert M. Vollmer, L. Beane 1951-6-6 127 Humboldt On road between Orick and Weitchpec. Comment
  UC668188  Polygala cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1541401  Polygonum amphibium var. emersum H. E. Parks August 1934 5165 Humboldt Big Lagoon Comment
  HSC38370  Polygonum aviculare Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  POM302977  Polygonum coccineum H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans. Comment
  UC1713695  Polygonum davisiae Joseph P. Tracy 1919-9-22 5261 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  UC672935  Polygonum douglasii Joseph P. Tracy 1932-8-21 10366 Humboldt Three Cabins North Coast Ranges, Chararral Mountain (w foothills of mt.) 457 Comment
  BLMAR616  Polygonum paronychia Jennifer Wheeler 2011-5-20 616 Humboldt King range, Below Strawberry Rock along Mattole dunes 7 Comment
  HSC103974  Polygonum paronychia C. Reynolds 2015-3-16 19 Humboldt Along Freshwater Beach, due south of the Kuchel Visitor Center 1 Comment
  RSA246682  Polygonum paronychia Robert F. Thorne, Percy C. Everett 1965-8-5 35163 Humboldt Samoa Dunes. 3 Comment
  CDA36030  Polygonum polystachyum R. Robison 2011-6-3 Humboldt Trinidad State Beach, Stagecoach Road 0 Comment
  JEPS79950  Polygonum polystachyum Joseph P. Tracy 1940-10-18 16775 Humboldt Eureka 30 Comment
  UC1222471  Polygonum sawatchense subsp. oblivium Joseph P. Tracy 1947-8-24 17923 Humboldt on Box Camp Trail 1/2 mi w summit; Trinity Summit 1676 Comment
  CAS-BOT-BC421006  Polygonum spergulariiforme Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 1219 Comment
  POM302976  Polygonum spergulariiforme H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans. Comment
  HSC77391  Polypodium californicum L. P. Janeway 1983-4-16 232 Humboldt Near old hwy. 299 on W side of Berry Summit 823 Comment
  HSC95875  Polypodium calirhiza Will Ferrand 2002-5-7 46 Humboldt 200 ft. N of the intersection of Lanphere Rd. and the entrance to Lanphere Dunes Preserve 9 Comment
  CHSC68484  Polypodium glycyrrhiza Vernon H. Oswald 1997-4-10 8320 Humboldt Road paralleling Hwy. 101 between Clam Beach and Little River State Beach, north of Arcata. 30 Comment
  HSC1122  Polypodium glycyrrhiza L. H. Myers 1963-2-15 50 Humboldt Sand dunes W of Lanpheres Rd. Mad River Slough area Comment
  HSC39970  Polypodium glycyrrhiza Kurt Hippen, Tom Duebendorfer Humboldt Off Dowes Prairie Rd. 0.25 mi. up Strawberry Cr. Comment
  HSC26822  Polypodium scouleri Clifton Raymond Chesbrough 1973-6-19 69 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  CAS-BOT-BC72083  Polypodium scouleri Ira L. Wiggins 1957-6-20 14133 Humboldt East side of highway, Trinidad Comment
  RSA689966  Polypodium scouleri Susan Hutchinson 1931-07 102 Humboldt Grade between Trinidad and Big Lagoon 15 Comment
  RSA689967  Polypodium scouleri Charlotte M. Hoak 1931-7-15 s.n. Humboldt Below Big Lagoon Comment
  HSC10823  Polypogon australis D. E. Anderson 1965-5-8 3656 Humboldt W end of bridge over Trinity River, 0.5 mile S of Willow Creek. Comment
  SEINET200575 Image available Polypogon interruptus J. P. Tracy 1938-8-28 16137 Humboldt Trinidad coastal bluffs 0 Comment
  CAS-BOT-BC233069  Polypogon interruptus W. A. Silveus 1938-7-9 2961 Humboldt Along road through Redwoods, S of Dyerville Comment
  UC526769  Polypogon maritimus Joseph P. Tracy 1930-10-19 9236 Humboldt Eel River on gravel bars Alton to Fortuna; Eel River 15 Comment
  HSC38921  Polypogon monspeliensis Linda M. Barker 1976-6-22 1625 Humboldt 3 mi. W of Arcata Comment
  HSC65985  Polystichum imbricans Gail Newton 1980-7-23 1714 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC73633  Polystichum imbricans M. Baker 1980-7-23 3178 Humboldt Near Orleans Mtn. 1859 Comment
  HSC36639  Polystichum imbricans subsp. imbricans Thomas W. Nelson, Jane Nelson, James Nelson 1975-6-14 1903 Humboldt Beside branch off Rd. 2SO8 to Pine Mtn. Comment
  HSC98592  Polystichum imbricans subsp. imbricans Cara Witte 2008-6-11 707 Humboldt National Forest Road 5N10. 2 miles east of waterhole / Forest Service Road 5N10D. 1315 Comment
  UCD136543  Polystichum munitum Linda M. Barker 1976-4-30 1414 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC1150  Polystichum munitum J. W. Johnson 1962-3-9 1181 Humboldt Along Lanphere Lane, 150 ft. from gate, Samoa Peninsula Comment
  HSC12935  Polystichum munitum C. E. Fellows 1970-11-28 339 Humboldt HSU campus, N side of Bio. Sci. Greenhouse Comment
  HSC35693  Polystichum munitum Thomas W. Nelson 1975-1-16 1749 Humboldt E of HSU campus Comment
  RSA84982  Potamogeton natans F. W. Peirson 1923-7-11 3640 Humboldt 20 miles north of Eureka. Comment
  CAS-BOT-BC454064  Potamogeton pusillus subsp. pusillus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC454067  Potamogeton pusillus subsp. pusillus S. K. Harris 1938-9-12 s.n. Humboldt Backwater of Eel River, near Fernbridge Comment
  RSA246825  Potamogeton richardsonii Robert F. Thorne 1965-9-19 35462 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  CDA26070  Potentilla anserina subsp. pacifica B. F. Kemp 1958-5-14 Humboldt Ferndale. 0 Comment
  HSC102125  Potentilla drummondii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1029 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA21654  Potentilla gracilis Carl B. Wolf 1937-6-14 8809 Humboldt North coast range, 1.5 miles N of Kneeland Prairie 823 Comment
  HSC100560  Prosartes hookeri Carl C. Marshall Apr 1887 392 Humboldt Hoopa Valley. Comment
  HSC103987  Prosartes smithii E. R. Fyer 2015-4-29 31 Humboldt Arcata Community Forest 129 Comment
  HSC12222  Prosartes smithii Gary J. Stebbins 1970-5-17 80 Humboldt Along Jolly Giant Creek, 2.7 mi. up from HSC dorms 76 Comment
  SD39117  Prosartes smithii Marie Cummings 1933-4-18 21 Humboldt Russ Park, near Ferndale. Comment
  SD93020  Prunella vulgaris var. lanceolata W. Bertsch 1953-7-30 220 Humboldt Highway 101 near Dyerville. 60 Comment
  UC1196732  Prunella vulgaris var. lanceolata Joseph P. Tracy 1934-7-22 13487 Humboldt at crossing of Iaqua-Bridgeville road North Yager Creek 396 Comment
  UC1321003  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-21 636 Humboldt s Weott (Burlington Residence Area and Campground, Humboldt Redwoods State Park); Humboldt Redwoods State Park Comment
  UC1402050  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-19 630 -20 Humboldt Comment
  CAS-BOT-BC159976  Prunus emarginata Doris K. Kildale 1927-5-14 3192 Humboldt Big Lagoon Comment
  CAS-BOT-BC159978  Prunus emarginata Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC159979  Prunus emarginata H. E. McMinn 1922-8-5 354 Humboldt Along Van [Dusen] Duzen River Comment
  HSC71668  Prunus emarginata Gail Newton 1980-6-24 552 Humboldt Near Ladder Rock 1500 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
  UC205472  Prunus emarginata Joseph P. Tracy 1919-9-24 5296 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1828 Comment
  UC492200  Prunus emarginata Joseph P. Tracy 1932-7-15 10603 Humboldt Ridges e of Corral Prairie (Trintiy Summit, Klamath Mountains); Klamath Mountains, Trintiy Summit 1828 Comment
  HSC35014  Pseudognaphalium stramineum Thomas W. Nelson, James Nelson 1974-9-15 1714 Humboldt W of Fairhaven, Samoa Peninsula Comment
  UC582516  Pseudognaphalium thermale Joseph P. Tracy 1935-7-31 14388 Humboldt Salmon Summit 1767 Comment
  HSC40526  Pseudognaphalium thermale Thomas W. Nelson, James Nelson 1976-7-28 3060 Humboldt SW-facing outcrop along S.R. 36 ca. 4 mi. W of Dinsmore Comment
  UCD20403  Pseudognaphalium thermale Donald C. Hagar 1957-8-15 199 Humboldt 4.5 miles NE of Salyer, Cedar Creek Divide, 3500 ft. elev. 1066 Comment
  UC582501  Psilocarphus tenellus Joseph P. Tracy 1927-7-4 8236 Humboldt Iaqua 609 Comment
  HSC1165  Pteridium aquilinum var. pubescens Elrid H. Spinas 1948-6-16 67 Humboldt Horse Mtn. Comment
  HSC41263  Pyrola aphylla Brad Klipfel 1974-7-23 456 Humboldt Horse Mtn. Comment
  UC562457  Pyrola asarifolia Joseph P. Tracy 1936-6-28 15016 Humboldt Bald Mountain at Lake Prairie 1066 Comment
  HSC98038  Pyrola picta Cara Witte 2007-7-17 532 Humboldt National Forest 1. 2 miles south from intersection with 5N27. 1456 Comment
  CAS-BOT-BC62675  Quercus chrysolepis Doris K. Kildale 1926-5-16 1842 Humboldt Horse Mt. road 792 Comment
  HSC8106  Quercus chrysolepis D. E. Anderson 1961-9-30 1840 Humboldt Blue Lake 793 Comment
  CAS-BOT-BC94308  Quercus garryana L. B. Kildale 1930-8-3 10335 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  UC1193247  Quercus garryana P. Zinke 190 Humboldt 5 mi se Punta Enda; Lake Ridge at the Lake 579 Comment
  UC1541341  Quercus garryana H. E. Parks, J. P. Tracy 1930-9-15 764 Humboldt Kneeland Prairie Bald Hills Comment
  UC249714  Quercus garryana Joseph P. Tracy 1921-10-2 5965 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC419047  Quercus garryana H. E. Parks, J. P. Tracy 1930-9-15 764 Humboldt Bald Hills Kneeland Comment
  UC54686  Quercus garryana Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5854 Humboldt Trinity Summit, at lake near the top North Coast Ranges Comment
  CAS-BOT-BC105163  Quercus kelloggii Doris K. Kildale 1927-4-17 3093 Humboldt Briceland Bridge, 1/2 mile W of Gaberville 114 Comment
  UC1196357  Quercus kelloggii Joseph P. Tracy 1940-10-15 16780 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCD165088  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 21.1 mi. from Garberville along Alderpoint Rd. 107 Comment
  CAS-BOT-BC104332  Quercus sadleriana Clarence R. Quick 1959-6-24 59 -41 Humboldt Bee Mt. ca. 12 miles SW of Orleans Comment
  HSC32221  Quercus vacciniifolia J. O. Sawyer 1970-6-24 2219 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC41271  Quercus vacciniifolia Brad Klipfel 1974-6-25 417 Humboldt Horse Mtn. Comment
  CAS-BOT-BC539322  Quercus wislizeni Lois Weeth; Kerry Heise; John M. Tucker 2003-10-21 s.n. Humboldt 22 mi from Garberville along Alderpoint Rd; stop #2 116 Comment
  HSC36067  Ranunculus aquatilis R. Hager May 1962 Humboldt Turner Draw near Arcata Comment
  UC118295  Ranunculus aquatilis var. hispidulus J. W. Blankinship 1893-6-19 Humboldt Hydesville Comment
  UC1196276  Ranunculus bulbosus J. P. Tracy 1899-5-1 297 Humboldt 6th and G streets Immediate vicinity of Eureka (in gulch) 0 Comment
  HSC70952  Ranunculus orthorhynchus J. M. DiTomaso 1981-5-15 2008 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  HSC98748  Ranunculus orthorhynchus var. platyphyllus Cara Witte 2007-7-20 560 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  HSC90641  Ranunculus repens Gail Newton 1982-6-10 3613 Humboldt Elk River Wildlife Area, Eureka Comment
  SDSU10122  Ranunculus repens D. F. Howe 1962-5-22 3306 Humboldt Orick. 30 Comment
  UC1197993  Rhamnus californica Joseph P. Tracy 1937-7-11 15418 Humboldt Garberville 152 Comment
  UC592714  Rhamnus californica subsp. californica Carl B. Wolf 1934-6-30 Humboldt back of Shelter Cove 60 Comment
  RSA2937  Rhamnus californica subsp. occidentalis Carl B. Wolf 1931-8-30 2377 Humboldt On grade from Willow Creek to Blue Rahe, 9 miles above Willow Creek (Lord Ellis Road). 305 Comment
  UC912384  Rhamnus californica subsp. occidentalis Herbert L. Mason 1932-7-21 7109 Humboldt on road to Arcata to Weaverville (e slope of Southfork Mountains); Southfork Mountains Comment
  UC199231  Rhamnus purshiana V. King Chesnut Jul 1888 Humboldt Mad River Comment
  RSA8096  Rhamnus tomentella subsp. tomentella Doris K. Kildale 1928-10-7 6754 Humboldt Trinity River at mouth of Willow Creek Comment
  HSC91897  Rhododendron macrophyllum E. Mackey 1987-5-19 Humboldt Patrick's Point State Park Comment
  CHSC19505  Rhododendron neoglandulosum Norman Dennis 1965-6-3 143 Humboldt Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  POM89847  Rhododendron occidentale Chesnut 1880-8-10 s.n. Humboldt Arcata. Comment
  POM89461A  Rhododendron occidentale var. paludosum L. R. Abrams 1922-6-25 8253 Humboldt Arcata. Comment
  RSA171949  Rhododendron occidentale var. paludosum R. F. Thorne 1957-9-3 19025 Humboldt Patrick's Point State Park. Comment
  RSA0063214  Rhododendron occidentale var. paludosum R. F. Thorne, Percy C. Everett 1965-8-7 35189 Humboldt Big Lagoon; at edge of bog at south end of lagoon. 2 Comment
  CAS-BOT-BC433131  Ribes Doris K. Kildale 1926-4-6 1717 Humboldt Dobbyns [Dobbyn] Creek 152 Comment
  CAS-BOT-BC433138  Ribes Doris Kildale 1931-5-10 10579 Humboldt Snow Camp Comment
  CAS-BOT-BC433136  Ribes Doris K. Kildale; L. B. Kildale 1930-5-5 9555 Humboldt Bug Creek, Chaparral Mt. Comment
  CAS-BOT-BC433139  Ribes Doris Kildale Gillespie 1931-6-7 10638 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC103230  Ribes binominatum Jade Paget-Seekins 2010-6-23 27 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  HSC40828  Ribes binominatum Thomas W. Nelson, Jane P. Nelson 1976-7-26 3040 Humboldt Along ridge NW of Lassic Peak. 1707 Comment
  CAS-BOT-BC92884  Ribes bracteosum Greg de Nevers 2001-4-19 12258 Humboldt Prairie Creek, Redwoods State Park. 91 Comment
  HSC44274  Ribes bracteosum Barbara Kelly 1977-4-23 304 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UCSB24363  Ribes divaricatum var. pubiflorum Tracy, Joseph 1939-4-27 Humboldt mouth of Little River; at edge of sand dunes 6 Comment
  HSC57642  Ribes lacustre G. L. Clifton, Griswold 1979-7-25 10806 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC667071  Ribes lacustre Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16664 Humboldt Friday Ridge road Grouse Mt. 1371 Comment
  RSA0021102  Ribes lacustre Thomas W. Nelson, Jane P. Nelson 1977-6-19 3490 Humboldt [Mount] Lassic. 1616 Comment
  HSC101752  Ribes laxiflorum J. P. Smith, J. O. Sawyer 2012-2-27 13437 Humboldt Patrick's Point State Park 41 Comment
  CAS-BOT-BC173362  Ribes lobbii Doris K. Kildale 1926-9-5 2643 Humboldt Summit of Signal Peak, Lasseck's Peaks 1791 Comment
  HSC38950  Ribes lobbii J. P. Smith, J. O. Sawyer 1975-6-22 8207 Humboldt Six Rivers National Forest, W of Goat Hill Comment
  HSC70324  Ribes lobbii M. A. Baker 1980-6-8 1879 Humboldt Near Buck Flat. 1554 Comment
  RSA0021132  Ribes lobbii Lincoln Constance, R. C. Rollins 1942-5-11 2864 Humboldt Near summit 8 miles east of Blue Lake. Comment
  LA205539  Ribes marshallii Joseph P. Tracy; 1932-7-15 10592 Humboldt Klamath Mountains, Trinity Summit. ridges E of Corral Prairie 1828 Comment
  HSC59571  Ribes menziesii Rick Lundquist 1979-4-22 28 Humboldt 8.4 mi. up Fickle Hill Rd. from 11th St. across from HSU observatory 610 Comment
  JEPS43484  Ribes menziesii Lincoln Constance 1934-6-3 801 Humboldt Dyerville, foot of bank along n side of Redwood Highway Bull Creek Region, South Fork Eel River Comment
  UC1198931  Ribes menziesii J. P. Tracy 1905-3-26 2153 Humboldt immediate vicinity Eureka 0 Comment
  RSA0021766  Ribes menziesii Joseph P. Tracy 1921-4-4 5428 Humboldt Near Korbel, at Camp Bauer. 30 Comment
  HSC74339  Ribes roezlii M. A. Baker 1980-5-18 1290 Humboldt Near Black Mtn. 1006 Comment
  UC1193214  Ribes roezlii P. Zinke 1950-8-4 153 Humboldt 2 mi w Harris Post Office (outside national forest); Quad. 29D3 853 Comment
  UC492204  Ribes roezlii Joseph P. Tracy 1930-8-3 9144 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen River 670 Comment
  BLMAR391  Ribes roezlii var. cruentum Jennifer Wheeler 2005-4-22 391 Humboldt Lacks Creek, Near road just befor 100 acre field 853 Comment
  HSC20340  Ribes sanguineum S. J. Hawks 1965-5-6 19 Humboldt Clam Beach County Park Comment
  UCD102487  Ribes sanguineum G. F. Hrusa 1992-5-5 10436 Humboldt Cedar Camp Rd. approximately 10 m. west of Orleans. Mile 9.0. Comment
  RSA0019531  Ribes sanguineum R. D. Zortman 1963-4-7 17 Humboldt 5 miles NE of Arcata; south of the Mad River, off Warren Creek Rd. 91 Comment
  HSC20334  Ribes sanguineum var. glutinosum Doris K. Kildale 1926-5-20 1546 Humboldt Big Lagoon Comment
  HSC20344  Ribes sanguineum var. glutinosum Francis Winter 1960-2-28 Humboldt Samoa Peninsula 6 mi. W of Arcata, Ca Comment
  HSC95681  Ribes sanguineum var. glutinosum Steven Lee 2004-3-23 4 Humboldt Manila Dunes along Samoa Blvd., 200ft W of first powerline in parking area along Gun Club Rd. Comment
  RSA0018241  Ribes sanguineum var. glutinosum Lincoln Constance, R. C. Rollins 1942-5-11 2866 Humboldt Near summit 8 miles east of Blue Lake. Comment
  HSC49079  Ribes sanguineum var. sanguineum J. O. Sawyer 1977-4-23 2841 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC71157  Ribes sanguineum var. sanguineum Thomas W. Nelson 1977-6-15 3426 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  HSC57635  Romanzoffia sitchensis G. L. Clifton, Griswold 1979-7-25 10793 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CAS-BOT-BC74512  Rorippa curvisiliqua S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3438 Humboldt Northwest slopes of Buck Mountain. 822 Comment
  HSC63029  Rosa canina J. P. Smith, J. O. Sawyer 1973-5-12 6709 Humboldt Jct. of Big Hill Rd. and SR 96 at Hoopa Comment
  POM275419  Rosa gymnocarpa Lyman D. Benson 1928-7-12 489 Humboldt Weott Ranger Station. Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  UC914721  Rosa gymnocarpa Ira L. Wiggins 1930-7-22 4695 Humboldt along bank of creek between Blue Lake and Willow Creek; Redwood Creek Comment
  UC492161  Rosa gymnocarpa var. gymnocarpa Joseph P. Tracy Jul 16 1930-Jul 19 1930 8909 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC146832  Rosa nutkana Alice Eastwood; John Thomas Howell 1937-6-23 4768 Humboldt Near Dinsmore's Comment
  HSC19634  Rosa nutkana C. G. Young 1967-7-29 8 Humboldt Eureka City Golf Course, SE side Comment
  HSC19644  Rosa nutkana Harvey Doerksen 1962-5-22 29 Humboldt 100 W Azalea Reserve State Park Comment
  HSC99508  Rosa pisocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 170 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  CAS-BOT-BC146877  Rosa rubiginosa Doris K. Kildale 1926-8-31 2608 Humboldt Union Mattole, Mattole River Valley Comment
  CAS-BOT-BC148220  Rosa spithamea L. R. Abrams 1918-6-15 7102 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC148221  Rosa spithamea Doris K. Kildale 1930-5-24 9549 Humboldt Trinity River at Hoopa 121 Comment
  HSC40017  Rubus leucodermis Thomas W. Nelson, Jane P. Nelson 1976-7-1 2920 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  JEPS47714  Rubus leucodermis W. L. Jepson 1932-8-8 16532 Humboldt Perrott Creek Comment
  HSC102093  Rubus parviflorus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 996 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC56323  Rubus parviflorus Overton, Butler 1979-8-2 12664 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC57020  Rubus parviflorus Overton, Butler 1979-7-24 9632 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC70811  Rubus parviflorus Gail Newton 1980-7-23 1748 Humboldt Near Packsaddle Ridge 1463 Comment
  SEINET4948924  Rubus parviflorus Unknown 1938-8-6 15397 Humboldt Eureka Comment
  SEINET4976242  Rubus parviflorus Unknown 1938-8-8 15398 Humboldt Elk River, 6 miles S of Eureka Comment
  HSC34629  Rubus spectabilis A. M. Montalvo 1975-4-9 203 Humboldt Arcata Community Forest about .25 mi. up Trail #3 46 Comment
  HSC19692  Rubus ursinus W. L. Jepson 1932-8-8 16528 Humboldt Weott 305 Comment
  HSC19695  Rubus ursinus W. R. Brigham 1962-5-3 26 Humboldt Side of old Hwy. 101 N of Big Lagoon Rd. Comment
  HSC32429  Rubus ursinus Linda M. Barker 1974-5-11 173 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC70704  Rubus ursinus Gail Newton 1980-7-14 1546 Humboldt Near Deadman Ridge 1097 Comment
  UC666866  Rubus ursinus Joseph P. Tracy 1936-8-7 15112 Humboldt 2 mi se Devil's Hole (westerly exposure); Trinity Summit, se of Devil's Hole 1584 Comment
  HSC99000  Rubus ursinus subsp. ursinus Cara Witte 2008-7-16 906 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  CAS-BOT-BC363202  Rudbeckia occidentalis Carl B. Wolf 1937-8-13 9250 Humboldt North Coast Range, 11 mi. E. of Hoopa Valley on new road towards Trinity Summit 1524 Comment
  SEINET5710904  Rudbeckia occidentalis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6104 Humboldt From California 299 at Hawkins Bar (In Trinity County), turn onto the road to Denny and travel 1.7 miles down this road toa fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to antoher fork in the road. Take the right fork (away from thr road leading to Waterman Ridge and Willow Creek). On the road (7NO4), travel 1.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7 NO4N, the road to Groves Prairie. The collection site is a short distance up the road.; Groves Prairie Comment
  HSC55036  Rumex acetosella Gilbert Muth 1979-7-31 11488 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC55197  Rumex acetosella G. L. Clifton, Griswold 1979-8-2 12297 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  JEPS39894  Rumex acetosella Lincoln Constance 1934-6-3 807 Humboldt n side Redwood Hwy. (at Dyerville); South Fork Eel River, Bull Creek Region, Dyerville Comment
  HSC97647  Rumex acetosella Kevin Thomas 2004-4-26 18 Humboldt Stewart Ave Comment
  HSC99462  Rumex acetosella K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 116 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET200757  Rumex crispus Joseph P. Tracy 1908-7-30 2806 Humboldt Valley of Van Duzen River, opposite Buck Mountain. 300 Comment
  UC1191278  Rumex maritimus Malcolm A. Nobs and S. Galen Smith 1949-8-11 1338 Humboldt e shore Stone Lagoon Comment
  CAS-BOT-BC433647  Rumex obtusifolius Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  HSC17620  Rumex pulcher David K. Smith 1968-10-26 40 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  HSC38074  Rupertia physodes Thomas W. Nelson, James Nelson 1976-5-30 2633 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC454100  Ruppia cirrhosa Robert F. Thorne; P. Everett 1965-8-9 35340 Humboldt Along Hwy. 101 about 3 mi. N of Eureka 1 Comment
  HSC95580  Salicornia depressa Andrea Pickart 2002-7-19 180 Humboldt Arcata Marsh at end of I St. 0 Comment
  CAS-BOT-BC132668  Salix A. T. Whittemore 1980-3-15 80 -002 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  POM182024  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt McKay Meadow. Tinity summit. Klamath Mountains. 1524 Comment
  UC1196669  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14266 Humboldt meadows at Water Dog Lake; Trinity Summit 1828 Comment
  HSC99700  Salix exigua Glenn W. K. Shelton 2010-7-10 30 Humboldt Van Duzen River along State Rte. 36, 2 mi. W of Grizzly Creek Redwoods State Park, across from mile marker 15.00 91 Comment
  POM220112  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  CAS-BOT-BC104095  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0971 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104103  Salix hindsiana Harold E. Parks 1931-5-14 0958 Humboldt Fernbridge, Eel River 10 Comment
  CAS-BOT-BC107709  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna, on banks of Eel River 10 Comment
  CAS-BOT-BC107770  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1225 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CAS-BOT-BC107771  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1226 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  HSC19950  Salix hookeriana H. E. Parks Aug 1931 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  HSC19954  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-7 1103 Humboldt Trinidad, Little River Lagoon 0 Comment
  HSC90193  Salix hookeriana Jean Hanson 1980-3-8 10 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  JEPS12927  Salix hookeriana Joseph P. Tracy 1931-5-3 9356 Humboldt near Luffenholz Creek (near ocean); Northern Coast Region, Trinidad 60 Comment
  JEPS12957  Salix hookeriana Joseph P. Tracy 1931-9-27 9692 Humboldt Alton to Fortuna (on gravel bars); Northern Coast Region, Eel River 15 Comment
  JEPS13089  Salix hookeriana Joseph P. Tracy 1936-10-24 15203 Humboldt Fortuna; bank of Eel River 15 Comment
  POM219566  Salix hookeriana H. E. Parks 1931-3-24 915 Humboldt Trinidad. 90 Comment
  RSA5644  Salix hookeriana H. E. Parks 1931-5-28 1000 Humboldt Little River Lagoon. 0 Comment
  UC1196678  Salix hookeriana Joseph P. Tracy 1925-11-15 7316 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay (same region as #6929) 60 Comment
  UC1225924  Salix hookeriana Joseph P. Tracy 1947-8-31 17930 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC490461  Salix hookeriana Joseph P. Tracy 1932-5-10 9957 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC490473  Salix hookeriana Joseph P. Tracy 1932-6-26 10262 Humboldt Valley of S. Yager Creek Northern Coast Ranges, Valley of S. Yager Creek 762 Comment
  UCD111038  Salix hookeriana Linda M. Barker 1976-4-30 1415 Humboldt 3 miles west of Arcata. Comment
  JEPS14791  Salix jepsonii Joseph P. Tracy 1933-7-16 12773 Humboldt meadow at McKay Camp S. Fork Mt.; Northern Coast Ranges 1676 Comment
  UC275503  Salix laevigata Joseph P. Tracy 1925-11-1 7301 Humboldt Shively, along Eel R. from S. Fork to Scotia Northern Coast Ranges, Eel R., Shively 60 Comment
  UC512108  Salix lasiandra subsp. lasiandra Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1206 Humboldt 4 1/2 mi. s. Trinidad (Little R. Lagoon); Little R. Lagoon Comment
  CAS-BOT-BC125220  Salix lasiandra var. lasiandra Joseph P. Tracy 1933-7-16 12772 Humboldt South Fork Mountain; at McKay Camp 1676 Comment
  CAS-BOT-BC125221  Salix lasiandra var. lasiandra Harold E. Parks; Joseph P. Tracy 1931-5-17 0966 Humboldt Mouth of Willow Creek at Trinity River, on banks of Willow Creek 150 Comment
  CAS-BOT-BC107610  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-13 1253 Humboldt On gravelly floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107611  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-13 1253 Humboldt On gravelly floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107616  Salix lasiolepis Harold E. Parks 1931-9-26 9695 Humboldt Redwood Creek, at Berry's 274 Comment
  CAS-BOT-BC107618  Salix lasiolepis Harold E. Parks 1931-3-31 9328 Humboldt Redwood Creek, at Berry's 274 Comment
  CAS-BOT-BC107619  Salix lasiolepis Doris K. Kildale 1927-3-22 2934 Humboldt Samoa Peninsula Comment
  HSC98048  Salix lasiolepis Cara Witte 2007-7-17 542 Humboldt White Oak Opening 1257 Comment
  JEPS12956  Salix lasiolepis Joseph P. Tracy 1931-9-7 9643 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS14764  Salix lasiolepis Joseph P. Tracy 1932-8-27 10753 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  SBBG57891  Salix lasiolepis H. E. Parks 1931-5-14 963 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  UC275523  Salix lasiolepis Joseph P. Tracy 1923-4-15 6189 A Humboldt Redwood Creek, at Berry's 274 Comment
  UC469418  Salix lasiolepis Joseph P. Tracy 1927-8-7 8306 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC469429  Salix lasiolepis Joseph P. Tracy 1931-9-7 9643 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC471108  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC490544  Salix lasiolepis Joseph P. Tracy 1932-5-10 9958 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC495609  Salix lasiolepis Joseph P. Tracy 1932-10-12 10877 Humboldt bank <of> S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R., Miranda 121 Comment
  UC504022  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1254 Humboldt 2 mi E of Redwood Highway ( Mad River at Engelhart gravel pit, above Blue Lake) Comment
  UC519336  Salix lasiolepis Joseph P. Tracy 1933-5-20 12264 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC54677  Salix lasiolepis J. P. Tracy 1901-4-7 1011 Humboldt Immediate vicinity of Eureka 0 Comment
  UCSB11964  Salix lasiolepis Ball, Carleton; Parks, Harold; Tracy, Joseph 1932-5-11 Humboldt Little River Lagoon, 4.5 miles south of Trinidad Comment
  CAS-BOT-BC107415  Salix lasiolepis var. lasiolepis L. R. Abrams 1916-7-11 5968 Humboldt near Blocksberg Comment
  CAS-BOT-BC125611  Salix melanopsis Harold E. Parks 1931-5-14 0956 a Humboldt Van Duzen River above Bridgeville 300 Comment
  CAS-BOT-BC125616  Salix melanopsis W. R. Dudley 1899-6-21 s.n. Humboldt At the junction of the North and South forks of Eel River Comment
  CAS-BOT-BC125618  Salix melanopsis A. A. Heller 1923-7-10 13796 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  CAS-BOT-BC125619  Salix melanopsis W. R. Dudley 1899-6-21 s.n. Humboldt Junction of the North and South Forks of Eel River Comment
  HSC20034  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  HSC20040  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen River, between Alton and Carlotta 15 Comment
  JEPS14849  Salix melanopsis Lincoln Constance 1934-5-27 689 Humboldt s end of Dyerville Bridge (S. Fork Eel River); Bull Creek Region 45 Comment
  LA208881  Salix melanopsis Harold E. Parks; 1931-5-14 965 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  SD920  Salix melanopsis Harold E. Parks 1931-5-14 956 a Humboldt Van Duzen River above Bridgeville, river bed 299 Comment
  UC14800  Salix melanopsis Hy-An Pum 1888-7-21 Humboldt Comment
  UC470453  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481275  Salix melanopsis Harold E. Parks 1931-5-28 1027 Humboldt Little River Lagoon Comment
  UC481297  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 967 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481308  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 973 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC511986  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1242 Humboldt Van Duzen R. at Blue Slide; Van Duzen R. 91 Comment
  UC519367  Salix melanopsis Joseph P. Tracy 1933-7-20 12805 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  RSA0038342  Salix melanopsis var. tenerrima Harold E. Parks, Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  CAS-BOT-BC129208  Salix piperi Doris K. Kildale 1928-3-27 4359 Humboldt Freshwater Comment
  OBI35882  Salix scouleriana David J. Keil 1983-7-1 17291 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  UC1173631  Salix scouleriana Joseph P. Tracy 1937-2-21 15230 Humboldt near Grizzly Creek Van Duzen R. 91 Comment
  UC1196709  Salix scouleriana Joseph P. Tracy 1936-2-2 14765 Humboldt vicinity of Carlotta Carlotta 30 Comment
  UC490530  Salix scouleriana Joseph P. Tracy 1932-7-13 10507 Humboldt open groung at Corral Prairie (back from the meadows); Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC490540  Salix scouleriana Joseph P. Tracy 1932-7-20 10739 Humboldt on trail below Corral Prairie; Klamath Mts., Trinity Summit 1371 Comment
  UC525974  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch) Trinidad; , Spruce Cove (Parks Ranch) Comment
  HSC20106  Salix sitchensis H. E. Parks 1931-3-24 913 Humboldt Vicinity of Fortuna Comment
  HSC37885  Salix sitchensis Thomas W. Nelson 1976-4-3 2287 Humboldt Van Duzen River at Grizzley Creek Comment
  HSC90748  Salix sitchensis Jean Hanson 1980-3-8 21 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96615  Salix sitchensis Gordon Leppig 2005-4-8 2206 Humboldt N Spit Swamp, W side of highway 3 Comment
  UC1199054  Salix sitchensis Joseph P. Tracy 1938-7-31 16088 Humboldt head of Willow Creek (along Trinity Hwy.); Willow Creek Canyon, Willow Creek 762 Comment
  UC481386  Salix sitchensis Harold E. Parks 1931-3-24 910 a Humboldt Trinidad 90 Comment
  UC490534  Salix sitchensis Joseph P. Tracy 1932-7-13 10506 Humboldt wet meadow at Corral Prairie; Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  POM284213  Sambucus caerulea Lyman Benson 1928-7-12 490 Humboldt Weott Ranger Station 91 Comment
  HSC3966  Sambucus racemosa var. racemosa Harvey Doerksen 1962-5-4 7 Humboldt 0.25 mi. W of Korbel, S side of Mad River. Comment
  HSC3983  Sambucus racemosa var. racemosa Francis Winter 1960-4-19 Humboldt Samoa pennisula, 3 mi. N of U. S. Coast Guard Station, near Arcata. Comment
  SEINET3103511  Sambucus racemosa var. racemosa Steve Selva, Rodger Jensen 1974-8-28 99 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  UCD137261  Sambucus racemosa var. racemosa Joseph P. Tracy 1947-8-24 17912 Humboldt Trinity Summit, east of Box Camp. 1676 Comment
  RSA245004  Sanguisorba minor B. D. Rogers, W. J. Ferlatte 1966-8-15 3122 Humboldt 1/2 mile E of Azalea State Park. Arcata. Comment
  HSC21610  Sanicula arctopoides S. J. Hawks 1965-3-12 1 Humboldt W of Eureka Airport Comment
  HSC45369  Sanicula arctopoides R. York, Linda York 1978-4-1 101 Humboldt Growing on foredunes at end of Lighthouse Rd., 2 mi. SE of Petrolia Comment
  HSC86305  Sanicula arctopoides K. Berg, Mike Roantree 1983-5-15 472 Humboldt Samoa Peninsula 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
  UC1541386  Sanicula arctopoides H. E. Parks May 1934 4327 Humboldt Trinidad, Egg Point Egg Point; Trinidad, Egg Point Comment
  UC1197110  Sanicula bipinnatifida Joseph P. Tracy 1928-6-24 8461 Humboldt Valley of South Yager Creek 762 Comment
  HSC38860  Sanicula bipinnatifida J. P. Smith, J. O. Sawyer 1973-5-12 6677 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS281  Sanicula crassicaulis Joseph P. Tracy 1927-5-8 7967 Humboldt facing South Fork of Eel River (Phillipsville); Phillipsville 121 Comment
  UC642282  Sanicula crassicaulis Joseph P. Tracy 1927-5-8 7968 Humboldt Phillipsville, South Fork Eel River South Fork Eel River; Phillipsville, South Fork Eel River 121 Comment
  UC1022529  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 3 X449 Humboldt 5 mi n of Loleta (to e of U.S. Hwy 101) Comment
  HSC68994  Sanicula tracyi Jacqueline Greenleaf 1980-8-12 327 Humboldt Near Becker Cabin. 1143 Comment
  UC642339  Sanicula tracyi Joseph P. Tracy 1929-7-4 8614 B Humboldt French Camp Ridge 1066 Comment
  HSC73546  Sanicula tuberosa Gail Newton 1980-7-14 1471 Humboldt Near Last Chance Ridge. 1219 Comment
  UC1368468  Sanicula tuberosa R. K. Gierisch and D. H. Esplin 1969-7-1 3531 Humboldt Six Rivers Forest/Experimental Area, Grouse Mt. Grouse Mt.; Six Rivers Forest/Experimental Area, Grouse Mt. 1584 Comment
  UC183566  Saxifraga californica Joseph P. Tracy 1913-5-4 4063 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC492224  Saxifraga californica Joseph P. Tracy 1927-4-10 7896 Humboldt near the South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  POM290747  Schoenoplectus pungens Lyman Benson 1928-7-10 436 Humboldt Clam Beach, Trinidad. 9 Comment
  UC419066  Scirpus acutus var. occidentalis H. E. Parks 1930-9-14 771 Humboldt n shore Big Lagoon; n shore Big Lagoon Comment
  HSC62974  Scirpus microcarpus J. M. DiTomaso 1979-5-16 1014 Humboldt Corner of LK Wood and 14th St., Arcata Comment
  JEPS95121  Scirpus pungens Vernon Oswald and Lowell Ahart 1997-9-4 8848 Humboldt Big Lagoon County Park, at sw edge of Big Lagoon Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  HSC15636  Scoliopus bigelovii W. D. Stevens 1964-3-21 2 Humboldt 1.0 mi. E of Hwy. 299 on Lindsay Rd. Comment
  SEINET3991343  Scoliopus bigelovii Unknown 1950-4-20 18611 Humboldt One mile west of Dinsmore's; along Van Duzen river, opposite Buck Mountain 762 Comment
  SEINET12330006  Scrophularia californica F. H. Utech 1986-1 86 -407 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  UC147874  Scrophularia californica Joseph P. Tracy 1906-6-10 2469 Humboldt near Wrangletown; Northern Coast Ranges 152 Comment
  UC577323  Scutellaria antirrhinoides Joseph P. Tracy 1930-6-15 8763 Humboldt Dobbyn Creek 152 Comment
  JEPS62896  Scutellaria californica Joseph P. Tracy 1937-7-19 15453 Humboldt Buck Mountain 914 Comment
  RSA34313  Scutellaria californica L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  UC154265  Scutellaria tuberosa Mrs. M. H. Manning June, 1901 94 Humboldt Hupa Valley Comment
  UC1239698  Scutellaria tuberosa Joseph P. Tracy 1939-5-6 16278 Humboldt Trinity River Valley, Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC57963  Sedum divergens G. L. Clifton, Griswold 1979-7-31 11770 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC1222178  Sedum divergens Joseph P. Tracy 1935-7-24 14199 Humboldt near Ranger Station (Trinity Summit); , near Ranger Station 1828 Comment
  HSC74194  Sedum laxum subsp. heckneri M. A. Baker 1980-7-24 3198 Humboldt Near Orleans Mtn. 1625 Comment
  HSC73871  Sedum radiatum Gail Newton 1980-7-14 1461 Humboldt Near Last Chance Ridge. 1219 Comment
  UC1198841  Sedum radiatum Joseph P. Tracy 1927-5-15 8054 Humboldt Supply Creek near Hoopa Valley; Northern Coast Ranges, Supply Creek, nr Hoopa Valley 304 Comment
  CAS-BOT-BC59121  Sedum spathulifolium subsp. pruinosum Alice Eastwood 1907-4-22 38 Humboldt Trinidad Comment
  HSC6477  Sedum spathulifolium var. pruinosum D. E. Anderson 1961-8-25 1751 Humboldt Beach 1.5 mi. S of Trinidad Comment
  HSC100143  Selaginella kraussiana G. F. Hrusa, R. Bencie, L. Bencie, C. Dogwin, and E. Dogwin 2010-12-29 18277 Humboldt Forest E of Humboldt State University, above Fern Lake 47 Comment
  HSC98904  Selaginella wallacei Cara Witte 2008-6-7 686 Humboldt Horse Mountain Botanical Area. 1/4 mile west of intersection between National Forest 1 and Forest Service Roads 6N36, 6N38. 1426 Comment
  HSC99136  Selaginella wallacei C. Witte 2008-10-18 1063 Humboldt Horse Mountain Botanical Area. Approxmiately 1 mile north of Horse Mountain Communication Towers. Forest Service Road 6N66 1456 Comment
  HSC39001  Senecio integerrimus var. major Thomas W. Nelson, Jane P. Nelson 1976-5-31 2653 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  CDA8652  Senecio integerrimus var. major T. R. Haig 1960-6-18 Humboldt Kneeland Quarry, 0.5 mile northeast of Kneeland School. 0 Comment
  UC1118081  Senecio minimus H. L. Person 1932-7-23 Humboldt Korbel Eureka Quad., Korbel Comment
  UC581693  Senecio minimus Joseph P. Tracy 1937-7-18 15446 Humboldt s fork Eel River 60 Comment
  UC1199238  Senecio sylvaticus Harold E. Parks and Joseph P. Tracy 1934-6-27 11034 Humboldt Redwood Creek at Berry's; Redwood Creek at Berry's 274 Comment
  UC175387  Senecio sylvaticus J. P. Tracy 1907-6-20 2571 Humboldt immediate vicinity Eureka 0 Comment
  HSC70462  Senecio triangularis Gail Newton 1980-7-20 1630 Humboldt Near Bell Swamps 1426 Comment
  UC581710  Senecio triangularis Joseph P. Tracy 1932-7-13 10523 Humboldt Corral Prairie , Corral Prairie (Trinity Summit) 1584 Comment
  CDA8688  Senecio triangularis E. C. Whitney 1964-7-27 Humboldt Herb Russ property. 0 Comment
  HSC82388  Senecio triangularis Thomas W. Nelson 1979-7-11 5030 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  HSC29884  Senecio vulgaris Thomas W. Nelson 1971-11-11 600 Humboldt Foot of Murray Rd., McKinleyville. Comment
  HSC95584  Senecio vulgaris Andrea Pickart 2002-3-14 4 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  RSA0013853  Senecio vulgaris R. F. Thorne, Percy C. Everett 1965-8-8 35257 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  CAS-BOT-BC85840  Sequoia sempervirens Joseph P. Tracy 1926-2-21 7355 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC31518  Sequoia sempervirens Steve Selva, Roger Jensen 1974-8-28 95 Humboldt Behind Humboldt State University, Arcata. Comment
  MACF022873  Sequoia sempervirens Trudy R. Ericson 1978-9-3 964 Humboldt 3 mi. east of Carlotta on St. 36 60 Comment
  NY64458  Sequoia sempervirens J. P. Tracy 1935-12-8 14764 Humboldt Near Korbel 304.8 Comment
  SEINET3876375 Image available Sequoia sempervirens Richard R. Halse 1989-5-13 3842 Humboldt Along U.S. Hwy 101, 2 miles south of Weott.; 0 108 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
  HSC98920  Sericocarpus oregonensis var. oregonensis Cara Witte 2008-8-16 1032 Humboldt Intersection of National Forest 1 and Forest Service Road 4N06. 1252 Comment
  HSC19860  Sherardia arvensis Paul Shields May 1955 Humboldt Horse Mountain Comment
  UC502959  Sidalcea asprella Joseph P. Tracy 1928-6-24 8458 Humboldt between Bridgeville and head of Yager (South Yager Creek) 762 Comment
  CAS-BOT-BC205566  Sidalcea malachroides Joseph Burtt Davy; Walter C. Blasdale 1899-6-13 5482 Humboldt Camp Grant Comment
  CAS-BOT-BC205568  Sidalcea malachroides Doris K. Kildale 1927-7-2 3628 Humboldt Lord-Ellis road Comment
  UC1222509  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19033 Humboldt on the Butter Valley Road 2 mi e Cameron Hill Junction (near Kneeland); e of Cameron Hill Jct, near Kneeland Comment
  CAS-BOT-BC205569  Sidalcea malachroides Volney Rattan 1878-1-1 s.n. Humboldt Redwood Cr. Comment
  JEPS79985  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1928-6-24 8458 Humboldt between Bridgeville and head Yager (South Yager Creek); Northern Coast Ranges, South Yager Creek 762 Comment
  HSC103244  Sidalcea malviflora subsp. patula John McRae, Carrie Schreiber 2010-6-18 Humboldt USDA Forest Service, Humboldt Nursery, Baird Rd., McKinleyville 15 Comment
  POM264602  Sidalcea malviflora subsp. patula H. E. Parks 1940-05 24177 Humboldt Dow s Prairie 30 Comment
  UC18900  Sidalcea malviflora subsp. patula C. C. Marshall 1888-1 Humboldt e branch of South Fork Eel River Comment
  HSC58086  Sidalcea oregana G. L. Clifton, Griswold 1979-8-1 11994 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC104342  Sidalcea oregana subsp. eximia James Regan, Humboldt Redwood Co., LLC 2 Humboldt Table Bluff 46 Comment
  CDA18218  Silene californica G. D. Barbe, T. C. Fuller 1974-6-17 1846 Humboldt North Coast Ranges; Shelter Cove, Upper Pacific Drive, at Sea View Rd. 91 Comment
  CDA24094  Silene californica R. Spadoni 1992-6-15 Humboldt Along mad River east of Arcata, near Blue Lake, Redwood Valley. 0 Comment
  UC13560  Silene californica Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  HSC56939  Silene campanulata Overton, Butler 1979-7-23 9418 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 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
  UC13562  Silene campanulata subsp. glandulosa Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC59744  Silene gallica Clark L. Miller 1979-5-9 6116 Humboldt Samoa Dunes W of Samoa Blvd. Comment
  UC13555  Silene hookeri W. C. Blasdale 1896-6-8 Humboldt Grahams Grahames ((Grahames?)) Comment
  HSC4168  Silene laciniata subsp. californica C. B. Wolf 1927-8-29 1196 Humboldt 7 mi. S of Ferndale and Capetown, Bear River Ridge, Mt. Glen Comment
  HSC4171  Silene laciniata subsp. californica D. E. Anderson 1961-9-2 1768 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  CAS-BOT-BC75285  Sisymbrium officinale Joseph P. Tracy 1933-8-22 12976 Humboldt Eureka. 60 Comment
  HSC59467  Sisyrinchium bellum M. A. Ericksen 1979-5-13 284 Humboldt Chezem Rd., 0.2 mi. W of Hwy. 299 Comment
  RSA21200  Sisyrinchium californicum Carl B. Wolf 1937-8-10 9088 Humboldt Big Lagoon, bog at state park. 6 Comment
  CDA39387  Smilacina stellata Kaylea Eickhoff, Cara M. Witte 2005-6-1 8 Humboldt Coldspring Camp, 7.4 mi. south of Hwy. 299 on NF1. Comment
  RSA246653  Solanum americanum Robert F. Thorne, Percy C. Everett 1965-8-5 35147 Humboldt Samoa Dunes. 3 Comment
  UC585976  Solanum americanum Joseph P. Tracy 1934-11-4 13698 Humboldt Shively 30 Comment
  HSC59674  Solanum douglasii George Kirn 1977-10-20 Humboldt Eureka Bayfront, 0.5 mi. E of Hwy. 255 8 Comment
  HSC79534  Solanum douglasii Kenneth Clark 1980-3-24 540 Humboldt Middle terrace of Dead Man's Gulch, Shelter Cove 76 Comment
  UC1196152  Solanum umbelliferum Joseph P. Tracy 1935-7-20 14325 Humboldt head of Devil's Hole (Trinity Summit); , Devil's Hole 1828 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
  CAS-BOT-BC365442  Solidago elongata Ira L. Wiggins 1932-7-25 5895 Humboldt Roadsides near McKinleyville Comment
  UC165212  Solidago elongata Joseph P. Tracy 1901-8-2 1249 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CHSC423  Solidago spathulata M. Anthony 1960-5-1 Humboldt Coastal. Comment
  CHSC69500  Solidago spathulata Vernon Oswald; Lowell Ahart 1997-9-4 8852 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.1 mi south of Hwy. 255. ON dunes. 6 Comment
  HSC40262  Solidago spathulata Linda M. Barker 1976-8-2 1670 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  HSC90234  Solidago spathulata L. Watson, J. Meninga Aug 1990 10 Humboldt Near Manilla. Mad River Slough and Dunes. 10 ft. N of parking lot, E of trail Comment
  UCSC000787  Solidago spathulata H. L. Person 1932-7-20 s.n. Humboldt Eureka, Field Brook, Tinriesia Forest Comment
  BLMAR757  Solidago velutina subsp. californica Jennifer Wheeler 2013-9-4 757 Humboldt King range, strawberry rock grazing allotment 252 Comment
  HSC35010  Soliva sessilis J. O. Sawyer 1975-5-20 2695 Humboldt 1445 Chester Ave., Sunnybrae Comment
  CAS-BOT-BC374597  Sonchus oleraceus Joseph P. Tracy 1935-5-16 13805 Humboldt At Eureka 30 Comment
  HSC60123  Sonchus oleraceus M. A. Baker 1978-5-20 559 Humboldt Hoopa Indian Reservation Comment
  HSC97446  Sparganium emersum Ivy Watson 2008-10-5 35 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  UC176175  Sparganium erectum subsp. stoloniferum Joseph P. Tracy 1912-10-20 3987 Humboldt Loleta Northern Coast Ranges, Eel Valley (lower Eel Valley) 15 Comment
  UCR45375  Spartina densiflora K. Berg 1986-7-28 637 Humboldt Humboldt Bay Arcata; foot of I Street Comment
  RSA796313  Spartina foliosa D. Kearns 1979-8-24 20 Humboldt Arcata Bay. Near the Arcata Boat Launching Facility at the south end of I Street. Comment
  HSC103560  Spartium junceum Spadoni 2002-6-26 70828 Humboldt Along roadside in the vicinity of Garberville. Comment
  HSC12566  Spergula arvensis D. La Conte 1970-8-10 3 Humboldt Comment
  HSC4239  Spergula arvensis Francis Winter 1960-2-28 Humboldt Samoa Peninsula 6 mi. W of Arcata, Ca Comment
  HSC79184  Spergula arvensis L. P. Janeway 1984-2-6 711 Humboldt .25 mi. up Hidden Creek Rd. from LK Wood Blvd. 46 Comment
  CHSC33022  Spergula arvensis subsp. arvensis James Payne Smith Jr. 1970-6-7 3805 Humboldt 0.6 miles north of Luffenholtz Beach along Calif. 1 near Trinidad. Comment
  HSC26466  Spergularia macrotheca T. O. Osborne 1970-4-8 23 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  HSC37994  Spergularia macrotheca Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  HSC82961  Spergularia macrotheca A. L. Eicher 1985-6-19 Humboldt SW side of mouth of Mad River Slough, Humboldt Bay. 0 Comment
  HSC90473  Spiranthes romanzoffiana Jean Hanson 1980-8-28 124 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  HSC98913  Stachys ajugoides Cara Witte 2007-7-11 490 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  RSA134646  Stachys ajugoides Harlan Lewis 1940-7-3 s.n. Humboldt Humboldt County: Little River Beach State Park Comment
  UC180214  Stachys ajugoides var. rigida Joseph P. Tracy 1914-6-14 4512 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UCLA70889  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-25 Humboldt Dyerville Comment
  UCLA71137  Stachys ajugoides var. rigida H. L. Mason 1932-7-21 7103 Humboldt Big Lagoon Comment
  UCLA70908  Stachys ajugoides var. rigida C. Epling Aug 1933 Humboldt 30 mi e Weaverville (Farm Lodge) Comment
  UCLA71110  Stachys ajugoides var. rigida C. Epling Aug 1933 Humboldt near Big Tree Comment
  UCLA71136  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-15 15937 Humboldt vicinity Carlotta 30 Comment
  POM283271  Stachys bullata Lyman Benson 1928-7-10 s.n. Humboldt Weott Ranger Station. Seaward N Coast mtn range, S. Fork Eel River drainage. 61 Comment
  UC604661  Stachys chamissonis Joseph P. Tracy 1938-8-20 16124 Humboldt Alton 18 Comment
  UCLA71113  Stachys mexicana C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
Read comments
Aug 1 2016
  HSC47011  Stachys mexicana Sheila Logan 1978-4-10 179 Humboldt Redwood Park behind HSU campus, 1/4 mi. N of Bayside Rd. Comment
  RSA82586  Stachys rigida subsp. rigida F. W. Peirson 1932-7-7 10260 Humboldt Roadside, on Willow Creek, a few miles Willow Creek P.O. Comment
  HSC58204  Stachys rigida var. rigida Walter Overton 1979-8-1 12317 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  CAS-BOT-BC175346  Stellaria borealis subsp. sitchana Joseph P. Tracy 1900-5-22 795 Humboldt At Eureka 60 Comment
  CAS-BOT-BC175348  Stellaria borealis subsp. sitchana Malcom A. Nobs; S. Galen Smith 1949-8-9 1245 Humboldt Clam Beach Comment
  UC465510  Stellaria borealis subsp. sitchana Harley P. Chandler May 1901 1112 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  UC162363  Stellaria crispa Joseph P. Tracy 1900-8-5 914 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC100419  Stellaria longipes Carl C. Marshall May 1886 227 Humboldt Near H. and S to mill E of Arcata. Comment
  HSC4279  Stellaria media Jack Rockwell 1962-4-5 30 Humboldt N bank of Van Duzen River, E of Hwy. 101 Comment
  UC668077  Stellaria obtusa Joseph P. Tracy 1935-7-23 14161 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  HSC58220  Stenanthium occidentale Walter Overton 1979-8-1 12360 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1223172  Stephanomeria virgata subsp. pleurocarpa Joseph P. Tracy 1946-11-17 17666 Humboldt Eel River at mouth of Van Duzen River Eel River, Van Duzen River Comment
  HSC58417  Stipa lemmonii Griswold, Butler 1979-7-12 7219 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC98184  Stipa occidentalis var. californica R. D. Rogers 1964-5-15 28 Humboldt Rousseau Ranch, 18 mi. SE of Arcata. Comment
  RSA430015  Streptanthus breweri Thomas W. Nelson, Jane P. Nelson 1977-7-4 3587 Humboldt Along W side of road north of Alder Spring, head of N Fork of Conley Creek. 1494 Comment
  HSC70806  Streptanthus tortuosus Gail Newton 1980-7-24 1787 Humboldt Near Somes Mtn. 1615 Comment
  HSC99097  Streptanthus tortuosus var. orbiculatus Cara Witte 2007-5-31 152 Humboldt Along National Forest Rte. 1, near Kinsey Ridge, 1.5 miles north of intersection with 4N09 1299 Comment
  UC1198799  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1938-6-13 15909 Humboldt on exposed rock ledge near Cold Springs; North Coast Ranges, Grouse Mountain 1432 Comment
  UC1198801  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1926-6-20 7655 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC492251  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9029 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC102122  Streptanthus tortuosus var. tortuosus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1026 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC74132  Streptanthus tortuosus var. tortuosus R. York 1980-5-23 612 Humboldt Near Buck Mtn. 1524 Comment
  HSC96249  Streptanthus tortuosus var. tortuosus Kaylea Eickhoff, Cara M. Witte 2005-6-8 4 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  BLMAR272  Symphoricarpos mollis Jennifer Anthony-Wheeler 1999-7-30 272 Humboldt Lacks Creek, growing along ridgees, slopes, open places 1219 Comment
  UCD136540  Symphyotrichum chilense Collector unknown Date unknown s.n. Humboldt exact location unknown. Comment
  CAS-BOT-BC99005  Symphyotrichum eatonii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1173673  Symphyotrichum spathulatum Joseph P. Tracy 1939-8-16 16402 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1402 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
  UC1239632  Symphytum asperum Joseph P. Tracy 1933-6-25 12629 Humboldt around Humboldt Bay (Salmon Creek Valley); Northern Coast Ranges, , Salmon Creek Valley 30 Comment
  UC1198058  Synthyris reniformis Joseph P. Tracy 1926-2-28 7380 A Humboldt e fork Willow Creek Canyon; Northern Coast Ranges 457 Comment
  UC1222774  Synthyris reniformis Joseph P. Tracy 1950-4-20 18614 Humboldt 1 mi w Dinsmore's (on Van Duzen River); Van Duzen River Comment
  HSC90678  Tanacetum bipinnatum Gail Newton 1982-5-5 2523 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC6243  Tanacetum bipinnatum H. E. Parks Sep 1941 24216 Humboldt Little River Comment
  HSC6244  Tanacetum bipinnatum Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  UCR122356  Tanacetum camphoratum George K. Helmkamp, E. A. Helmkamp 2001-7-8 7012 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  UC1199289  Tanacetum camphoratum Joseph P. Tracy 1918-7-28 5093 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  CAS-BOT-BC376776  Tanacetum parthenium Ynez Whilton Winblad 1941-6-24 s.n. Humboldt Between Garberville and Pepperwood Comment
  HSC92008  Taxus brevifolia M. C. Hartman 1963-3-30 8 Humboldt Hwy. 299 1.0 mi. E of Berry Summit Comment
  UC502917  Taxus brevifolia Joseph P. Tracy 1927-3-27 7865 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 762 Comment
  CAS-BOT-BC447402  Tellima grandiflora Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC97605  Tellima grandiflora Cara Witte 2007-6-7 221 Humboldt Along National Forest 1. Approximately 1 mile north of cattle guard. Comment
  HSC63223  Tellima grandiflora M. A. Baker 1978-5-6 511 Humboldt 2 km. S of Weitchpec Comment
  JEPS60709  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1933-5-20 12256 Humboldt Mattole Valley Northern Coast Ranges 30 Comment
  UC673060  Thermopsis gracilis Joseph P. Tracy 1937-5-31 15326 Humboldt rocky point at Ruby Creek (along Trinity Hwy); Willow Creek Canyon 518 Comment
  HSC91618  Thuja plicata E. Mackey 1986-10-7 Humboldt Patrick's Point State Park along Patrick's Point Drive Comment
  NY17199  Thuja plicata A. Kellogg 1868-1 933 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  OBI35885  Thuja plicata David J. Keil 1983-7-1 17294 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  SEINET10613416  Thuja plicata Harold E. Parks 1932-7-25 Parks 1139 Humboldt Camp 21, Hammond Lumber Company, Trinidad. Small trees in bogs. Host of Keithia thujina, a fungus new to California. Herbarium of the University of California Comment
  CAS-BOT-BC88320  Thysanocarpus curvipes L. B. Kildale 1930-6-1 9763 Humboldt Klamath River at Bluff Creek. Comment
  UC161492  Thysanocarpus curvipes Joseph P. Tracy 1903-5-24 1915 Humboldt Alder Point Northern Coast Ranges, Eel River (on Eel River) 152 Comment
  HSC70508  Tiarella trifoliata var. unifoliata Gail Newton 1980-7-20 1608 Humboldt Near Bell Swamps 9 Comment
  UC14487  Tiarella trifoliata var. unifoliata Chesnut and Drew 1888-7-8 Humboldt near Arcata; near Arcata Comment
  UC154080  Tolmiea diplomenziesii J. P. Tracy 1900-5-30 832 Humboldt immediate vicinity Eureka 0 Comment
  UC27662  Tonella tenella Harley P. Chandler Jun 1901 1275 Humboldt Hupa Mts. Hupa Indian Reservation (between Bairs and summit) Comment
  HSC21588  Torilis arvensis P. W. Shields May 1955 Humboldt HSC campus Comment
  HSC45069  Torilis arvensis R. Sutherland 1978-5-16 7 .16578 Humboldt 155 Comment
  UC1197063  Torilis arvensis subsp. arvensis Mrs. Archie Cathey July 1933 Humboldt near Miranda (at Cathey Ranch) 304 Comment
  POM117573  Toxicodendron diversilobum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC14448  Trichostema lanceolatum D. E. Anderson 1961-9-3 1775 Humboldt Comment
  HSC35710  Trichostema laxum Thomas W. Nelson, B. Reinhardt 1975-7-30 2094 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  JEPS63152  Trichostema oblongum Joseph P. Tracy 1921-8-21 5936 Humboldt Trinity River Valley near Willow Creek Northern Coast Ranges 152 Comment
  HSC73246  Trientalis latifolia M. Baker 1980-5-18 1326 Humboldt Near Black Mtn. 1006 Comment
  HSC95824  Trientalis latifolia Kevin Thomas 2004-4-26 16 Humboldt Jacoby Creek Rd. Comment
  UC1198627  Trientalis latifolia Joseph P. Tracy 1935-5-24 13816 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC89588  Trientalis latifolia M. Roantree 1985-5-24 56 Humboldt NW side of Trinidad Head, along trail Comment
  UC33444  Trifolium barbigerum W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  HSC71452  Trifolium campestre J. P. Smith 1973-5-26 6811 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1197206  Trifolium ciliolatum Joseph P. Tracy 1927-5-8 5463 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  UC1223476  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1941-4-26 16864 Humboldt Kneeland Prairie 762 Comment
  UC1103441  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1902-6-3 1645 Humboldt near Harris (Spruce Grove); Northern Coast Ranges, Eureka 914 Comment
  JEPS79999  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-29 8821 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges Comment
  RSA244958  Trifolium fragiferum Thomas W. Nelson 1973-7-24 1099 Humboldt On the flood plain of the Mad River at the north end of the Carson railroad bridge. Comment
  HSC29728  Trifolium fucatum J. D. Ackerman 1973-4-19 43 Humboldt Off Redwood Ave., Arcata Comment
  UC1223459  Trifolium fucatum Joseph P. Tracy 1933-5-20 12221 Humboldt s point of cape (near ocean shore); Cape Mendocino Comment
  HSC15183  Trifolium gracilentum Norman H. Moe 1962-5-19 Humboldt Lanphere's Place Comment
  SEINET12148015  Trifolium howellii J. P. Tracy 1934-1 13449 Humboldt Grouse Mt 1524 Comment
  RSA232726  Trifolium incarnatum Larry E. DeBuhr, Gary D. Wallace 1972-5-22 605 Humboldt Along Hwy. 299 west of Arcata. Comment
  HSC99351  Trifolium longipes subsp. hansenii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 197 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  HSC76223  Trifolium longipes subsp. oreganum Overton, Butler 1979-7-24 9763 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  JEPS33182  Trifolium longipes var. oreganum Joseph P. Tracy 1926-6-20 7608 Humboldt Horse Mtn Northern Coast Ranges Comment
  JEPS65974  Trifolium microcephalum Lincoln Constance 1934-5-26 670 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region Comment
  HSC78971  Trifolium microdon L. P. Janeway 1984-5-16 786 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road 1/4 mi. NW of the boat ramp 5 Comment
  SEINET6935126  Trifolium microdon Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  HSC38634  Trifolium obtusiflorum D. E. Anderson, J. P. Smith 1971-6-28 - 1257 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  SEINET4178759 Image available Trifolium obtusiflorum Unknown 1932-6-14 10153 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1197504  Trifolium obtusiflorum Joseph P. Tracy 1914-5-30 4480 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  HSC12341  Trifolium pratense Steve Dorei 1970-10-26 113 Humboldt SE corner of Old Arcata Rd. and Freshwater Rd. Comment
  HSC15158  Trifolium pratense W. F. Nickel 1965-5-16 Humboldt N Arcata next to the Humboldt Motor Hotel. Comment
  HSC28188  Trifolium pratense Richard Curtis 1973-9-27 21 Humboldt Bayside cutoff between Eureka and Arcata. Comment
  HSC70320  Trifolium variegatum M. A. Baker 1980-6-7 1871 Humboldt Near Ammon Creek 732 Comment
  UCD109495  Trifolium variegatum var. major W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  CDA14904  Trifolium vesiculosum P. Haggard 1998-9-14 s.n. Humboldt on Hwy 101 nr. Orick. 0 Comment
  UC1223311  Trifolium willdenovii Joseph P. Tracy 1934-4-8 13170 Humboldt betw Miranda and Redway South Fork of Eel River Comment
  HSC45126  Trifolium willdenovii R. Sutherland 1978-5-19 7 .19578 Humboldt 131 Comment
  HSC15194  Trifolium wormskioldii Norman H. Moe 1962-5-17 Humboldt Lanphere's Place. Comment
  UC1541579  Trifolium wormskioldii Harold E. Parks May 1934 4329 Humboldt Spruce Cove Trinidad Comment
  UCR121761  Triglochin maritima George K. Helmkamp, E. A. Helmkamp 2001-7-8 6995 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  CAS-BOT-BC519092  Trillium chloropetalum var. chloropetalum D. H. Norris 1970-5-20 12216 Humboldt At crest of ridge on Big Hill Road east of Hoopa, at streamhead. Comment
  UC1134682  Trillium ovatum R. Stahelin 1933-5-18 LH 12 Humboldt Arcata City Park Eureka Quad., Arcata City Park Comment
  UC1197825  Trillium ovatum Joseph P. Tracy 1911-5-7 3184 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA24327  Trillium ovatum Carl B. Wolf 1941-2-28 9972 Humboldt 1.3 miles east of Redwood Creek Bridge. On the Blue Lake to Willow Creek Road. 244 Comment
  UC1197822  Trillium ovatum Joseph P. Tracy 1923-3-17 6153 Humboldt near Garberville Garberville; Northern Coast Ranges 121 Comment
  UC175281  Trillium ovatum Joseph P. Tracy 1913-6-26 4350 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen R., Dinsmore's Ra 762 Comment
  SEINET3992212  Trillium sessile Unknown 1928-4-29 8418 Humboldt Prairie Creek 152 Comment
  HSC59238  Triphysaria eriantha subsp. eriantha Clark L. Miller 1979-5-9 5115 Humboldt Along Samoa Blvd., 200 yards N of airport Comment
  JEPS26220  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1917-5-30 4805 Humboldt Little River Beach Northern Coast Ranges, Little River Beach (sand dunes) 6 Comment
  UC146240  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1904-5-1 2040 Humboldt region about Humboldt Bay at Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  UC146244  Triphysaria pusilla J. P. Tracy 1905-4-16 2166 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC902259  Triphysaria pusilla Joseph P. Tracy 1948-5-15 17974 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1198040  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1912-6-30 3715 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  UC1222444  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1927-4-24 7929 Humboldt Eureka 6 Comment
  UC179947  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1914-5-14 4472 Humboldt Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  UC1198043  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1927-4-24 7928 Humboldt Eureka 6 Comment
  CAS-BOT-BC199618  Trisetum canescens Joseph P. Tracy 1901-6-23 1167 Humboldt Immediate vicinity of Eureka 152 Comment
  CAS-BOT-BC199619  Trisetum canescens J. P. Tracy 1903-5-22 1877 Humboldt Alder Point on Eel River 152 Comment
  SACT002443  Trisetum canescens Herbert Copeland 1936-6-15 Humboldt At world's biggest tree in redwood forest near Dyerville Comment
  UC187229  Trisetum cernuum J. P. Tracy 1902-6-20 1751 Humboldt immediate vicinity Eureka 0 Comment
  SJSU911  Triteleia bridgesii J. W. Tilden 1946-6-20 1018 Humboldt Bluff Creek c. 1.5 mi above junction with Klamath River Comment
  UC15028  Triteleia bridgesii Mrs. M. H. Manning 1901-7-15 21 Humboldt near Hupa (trail below Mud Springs) Comment
  UC146193  Triteleia hyacinthina Joseph P. Tracy 1908-6 2805 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  HSC3038  Triteleia hyacinthina D. E. Anderson 1962-7-14 2259 Humboldt Along Barry Ridge Rd. Comment
  HSC3061  Triteleia laxa D. E. Anderson 1962-7-14 2251 Humboldt 2 mi. W of Kneeland Post Office Comment
  HSC3103  Triteleia laxa Greg Bos 1965-5-15 273 Humboldt Berry Summit near Hwy. 299 793 Comment
  RSA254788  Triteleia laxa Thomas W. Nelson, James Nelson 1973-5-28 952 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC35821  Triteleia laxa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1918 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  UC175816  Triteleia laxa Joseph P. Tracy 1913-6-19 4210 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  HSC13437  Triticum aestivum D. J. McVean 1965-5-16 58 Humboldt Arcata, Game Pens at H.S.U. Comment
  UCD135133  Tsuga heterophylla Linda M. Barker 1976-6-14 1589 Humboldt Lanphere-Christensen Dunes, coastal forest and dunes 3 miles west of Arcata. Comment
  CAS-BOT-BC73935  Turritis glabra Doris Kildale Gillespie 1931-6-7 10626 Humboldt South Fork Mountain. Blake Lookout. 1726 Comment
  UC1196284  Umbellularia californica Joseph P. Tracy 1912-3-31 3570 Humboldt in valley of Mad River near Glendale; Northern Coast Ranges 30 Comment
  UC915720  Umbellularia californica W. L. Jepson 1903-6-13 36 Humboldt Briceland Comment
  UC1239525  Uropappus lindleyi Joseph P. Tracy 1921-4-24 5462 Humboldt slopes and open groves South Fork Eel River (Phillipsville); Northern Coast Ranges, , Phillipsville 121 Comment
  UCD170579  Urtica dioica subsp. gracilis Gordon Leppig 1998-4-13 736 Humboldt Arcata, Anvick Rd. 12 Comment
  UC30064  Vaccaria hispanica Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  HSC55151  Vaccinium cespitosum G. L. Clifton, Griswold 1979-8-1 12091 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC98063  Vaccinium membranaceum Cara Witte 2007-7-12 524 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  CAS-BOT-BC199304  Vaccinium ovatum Doris K. Kildale 1927-3-25 3008 Humboldt Humboldt Hill near Bucksport School House 15 Comment
  CAS-BOT-BC199307  Vaccinium ovatum Volney Rattan 1879-1-1 s.n. Humboldt Unspecified Comment
  HSC104091  Vaccinium ovatum Monica Rodriguez, William A. Worley 2015-2-21 9 Humboldt Rock Creek Ranch; 8.2 mi. along South Fork Rd. from Redwood Highway 199. 131 Comment
  HSC7917  Vaccinium ovatum D. E. Anderson 1961-9-23 1832 Humboldt 2.3 mi. S of Kneeland corner Comment
  HSC89511  Vaccinium ovatum M. Roantree 1985-4-25 6 Humboldt E side of Trinidad Head. Comment
  POM285981  Vaccinium ovatum Lyman Benson 1929-7-16 1837 Humboldt Weott Ranger Station. Comment
  RSA46850  Vaccinium ovatum Doris K. Kildale 1927-5-7 3115 Humboldt Elk Ridge near Blacksburg. Comment
  RSA503177  Vaccinium ovatum Gary D. Wallace 1971-7-28 947 Humboldt King Range, ca. 4 mi. SE of Shelter Cove along King Range Rd. 3.8 mi. S of jct. with Shelter Cove Rd. Comment
  RSA66951  Vaccinium ovatum E. K. Balls 1951-5-4 16421 Humboldt Nelson Grove to Robinson Grove, Hwy 101, 20 mi. north of Garberville. Comment
  UC1197779  Vaccinium ovatum Joseph P. Tracy 1922-5-21 6052 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  UC484083  Vaccinium ovatum Carl B. Wolf 1930-10-24 Humboldt 2 mi below mouth of Salmon River; Klamath River 152 Comment
  UCD118087  Vaccinium ovatum B. L. Kay 1955-6-7 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  CAS-BOT-BC5074  Valeriana sitchensis subsp. scouleri Alice Eastwood; John Thomas Howell 1937-6-24 4868 Humboldt 5 miles E of Berry Summit Comment
  UC1239583  Valeriana sitchensis subsp. scouleri Mrs. Archie Cathey 1933-5-6 Humboldt Eel Rock 91 Comment
  HSC48152  Valeriana sitchensis subsp. sitchensis Brad Klipfel 1975-5-30 656 Humboldt N of Horse Mtn. Comment
  HSC28044  Vancouveria hexandra Chris Gist 1971-6-19 6 Humboldt Jolly Giant Canyon, HSU, Arcata Comment
  HSC59740  Vancouveria hexandra Clark L. Miller 1979-5-15 2133 Humboldt Jolly Giant Creek behind HSU dorms Comment
  HSC99004  Vancouveria hexandra Cara Witte 2008-8-16 1026 Humboldt Ammon Ridge Road. Approximately 1/4 mile east of intersection with National Forest 1. 1548 Comment
  CAS-BOT-BC76085  Vancouveria planipetala Doris K. Kildale 1928-5-19 5204 Humboldt Chalk Mountain. Comment
  CAS-BOT-BC76092  Vancouveria planipetala J. H. Thomas 1949-6-13 921 Humboldt Between Le Perron Flat and Whitneys Peak, along trail. East of town of Orleans. 1066 Comment
  RSA438032  Vancouveria planipetala Miss Hutchinson 1927-7-1 s.n. Humboldt [Unspecified] 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
  UC153968  Veratrum californicum var. californicum Joseph P. Tracy 1910-7-24 3158 Humboldt 1.5 mi s Field's Landing; Humboldt Bay Region 0 Comment
  JEPS80003  Veratrum insolitum Joseph P. Tracy 1929-7-4 8636 Humboldt French Camp Ridge 1066 Comment
  CDA30233  Verbena lasiostachys M. K. Beyers, I. Shepardson 2009-9-13 240 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  CDA30190  Veronica americana M. K. Beyers, I. Shepardson 2009-9-13 241 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
  UC582550  Veronica americana Joseph P. Tracy 1937-7-2 15389 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  SEINET10782119  Veronica americana J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13018 Humboldt North of McKinleyville off U.S. 101 (a few kilometers north of Eureka), Clam Beach County Park. Comment
  UC176046  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1913-6-14 4136 Humboldt in Valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC21211  Veronica persica S. J. Roberts 1965-4-24 15 Humboldt 0.5 mi. S of junction of Iverson and Parton Lanes Comment
  UC176113  Veronica scutellata Joseph P. Tracy 1912-7-21 3778 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  JEPS29846  Veronica scutellata Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7836 Humboldt about 1 mi w of Carlotta (or about 0.5 mi e of Hydesville) Comment
  UC1222598  Vicia americana var. americana Joseph P. Tracy 1946-6-15 17569 Humboldt w of Redwood Creek (on Trinity Highway, at Green Point); Green Point 457 Comment
  HSC23780  Vicia cracca R. A. Vanbianchi 1971-9-10 80 Humboldt Along Fieldbrook Rd., .1 mi. from junction with old Hwy. 299 Comment
  HSC15268  Vicia gigantea S. J. Hawks 1965-5-18 75 Humboldt Clam Beach. Comment
  OBI12617  Vicia hirsuta Joseph P. Tracy 2016-5-31 4689 Humboldt Stitz Crk. Along Eel River from S Fork to Scotia Comment
  UCD108677  Vicia hirsuta P. B. Kennedy 1929-6-12 s.n. Humboldt Eureka. Comment
  PASA271  Vicia sativa Frank W. Peirson 1926-7-13 Humboldt Mad River, vicinity of Blue Lake Comment
  JEPS29847  Vicia sativa subsp. nigra Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7837 Humboldt about 1 mi w of Carlotta (or 1/2 mi e of Hydesville) Comment
  RSA170273  Vicia tetrasperma Joseph P. Tracy 1916-5-16 4688 Humboldt Stitz Creek. Along Eel River from South Fork to Scotia. 61 Comment
  UCD108796  Vicia tetrasperma Frederica Bowcutt 1989-5-23 1331 b Humboldt Sinkyone Wilderness State Park. Bear Harbor, 2.5 air miles SE of Needle Rock ranch house, 4 air miles SE of Four Corners, 15 air miles SW of Garberville. Old home sites. 12 Comment
  UCD108797  Vicia tetrasperma Barbara Ertter; Thomas J. Delendick 1987-5-16 6912 Humboldt Hwy 299 roadside ca. 8 mi E of Arcata, 9 1/2 mi W of Lord Ellis summit. Comment
  HSC104036  Vicia villosa subsp. villosa E. R. Fyer 2015-4-26 22 Humboldt At turnout off Samoa Blvd., at railroad bridge 3 Comment
  HSC15282  Vicia villosa subsp. villosa D. E. Anderson 1962-5-10 2210 Humboldt Lanphere's Comment
  RSA24335  Viola adunca Carl B. Wolf 1941-2-25 9957 Humboldt Between Freshwater Lagoon and Stone Lagoon, 1/8 mile back from Ocean. 30 Comment
  RSA46714  Viola adunca Doris K. Kildale 1926-3-20 1537 Humboldt Big Lagoon. Comment
  UC1761516  Viola adunca Milo S. Baker 1923-7-30 158 Humboldt Iaqua, 1/2 mi from Fredricksons house (near head of Yager Creek) 670 Comment
  UC1761620  Viola adunca J. P. Tracy 1901-6-23 1168 Humboldt Eureka Comment
  HSC65883  Viola cuneata M. A. Baker 1980-6-16 1945 Humboldt Near Onion Mtn. 1280 Comment
  HSC97552  Viola cuneata Cara Witte 2007-6-1 167 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N38. 1382 Comment
  HSC21784  Viola glabella Elrid H. Spinas 1948-5-15 7 Humboldt Horse Mtn.; 1 mi. off Hwy. 299 Comment
  HSC21793  Viola glabella R. A. Rasp 1964-5-6 41 Humboldt Butler Valley, 11 mi. S of Korbel Comment
  RSA218475  Viola glabella N. H. Russell 1960-6-9 60 -24 Humboldt Near Weott and Williams Grove, by Hwy 101. Comment
  HSC33056  Viola hallii Thomas W. Nelson 1974-5-7 1234 Humboldt Beside airstrip at Kneeland Prairie Comment
  RSA249333  Viola hallii D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-14 5614 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC96539  Viola macloskeyi Gordon Leppig 1998-5-11 761 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  RSA12564  Viola macloskeyi Carl B. Wolf 1934-7-2 5875 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  UC1103556  Viola macloskeyi Joseph P. Tracy 1933-7-16 12780 Humboldt South Fork Mountain at McKay Camp McKay Camp; South Fork Mountain, McKay Camp 1676 Comment
  JEPS91197  Viola macloskeyi subsp. macloskeyi Dean W. Taylor 1970-5-8 328 Humboldt Sphagnum bog North of Arcata; ; Sphagnum bog North of Arcata 3 Comment
  HSC83417  Viola ocellata R. N. Raynor 1935-4-15 Humboldt Fort Seward 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
  SEINET200801 Image available Viola praemorsa J. P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek Comment
  UCSB27854  Viola praemorsa Phelps, M. 1972-3-20 Humboldt 1000 yds. north of Whitethorn turnoff on Shelter Cove Rd., roadside 304 Comment
  UC35265  Viola praemorsa subsp. praemorsa W. C. Blasdale 1896-6-7 Humboldt Kneeland's Comment
  HSC21857  Viola sempervirens D. E. Anderson 1962-2-10 1915 Humboldt 1.0 mi. S of Big Lagoon school along abandoned stretch of Hwy. 101 Comment
  UCD111295  Viola sempervirens K. Esau 1934-4-1 s.n. Humboldt Above Fort Seward. Comment
  UC1761977  Viola sempervirens J. P. Tracy Apr 1941 Humboldt somewhere near Willow Creek Comment
  HSC98569  Viola sheltonii Cara Witte 2008-6-9 691 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1503 Comment
  CAS-BOT-BC203049  Vitis californica Doris K. Kildale 1928-6-17 5236 Humboldt Miranda, south fork of Eel River Comment
  JEPS40256  Vitis californica W. L. Jepson 1924-9-20 10653 Humboldt Richardson Grove South Fork Eel River Comment
  UC212888  Vulpia bromoides Joseph P. Tracy 1919-4-27 5132 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  UCD93441  Vulpia bromoides Linda M. Barker 1976-4-30 1398 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CHSC19731  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt Ca. 3 miles west of Willow Creek along Three Creeks Road. Comment
  UCD94573  Vulpia microstachys var. pauciflora A. H. Murphy 1951-6-1 54 Humboldt South Fork Mtn. about 3 miles east of Low Gap. 822 Comment
  SEINET7295258 Image available Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-1 14961 Humboldt Burr VAlley; on northwest slope of Buck Mountain Comment
  HSC37935  Vulpia myuros Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC9926  Vulpia myuros E. W. Styskel 1964-4-3 56 Humboldt 0.25 mi. S of Garberville along Sprowl Creek Rd. Comment
  RSA183638  Vulpia myuros D. E. Anderson 1965-9-5 4088 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  UC196967  Vulpia myuros var. hirsuta Joseph P. Tracy 1915-5-23 4640 Humboldt Eureka; Northern Coast Region 0 Comment
  CAS-BOT-BC128812  Whipplea modesta Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  LA17036  Xerophyllum tenax C. B. Wolf; 1934-6-30 5840 Humboldt 6 mi. from Shelter Cove on rd to Briceland near summit of grade Comment
  RSA12560  Xerophyllum tenax Carl B. Wolf 1934-7-2 5879 Humboldt Snow Camp. (Mountains east of Korbel). 1372 Comment
  RSA498212  Xerophyllum tenax W. Hutchinson 1927-05 s.n. Humboldt Humboldt County Comment
  SD51273  Xerophyllum tenax Darley F. Howe 1961-8-2 3123 Humboldt 24 miles east of Orick, on Bald Mountain Road. Comment
  HSC15760  Zigadenus fremontii R. Spellenberg 1965-6-14 1127 Humboldt Kneeland Prairie, at Kneeland Airport 6 mi. SE of Kneeland Comment
  HSC98861  Zigadenus micranthus Cara Witte 2007-5-29 128 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment



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