Search Results — 2000 specimen records retrieved (1431 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=PLUMAS; Source=All; Collector=Howe;   
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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
  CAS-BOT-BC100038  Balsamorhiza deltoidea John Thomas Howell 1975-6-16 51137 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC100039  Balsamorhiza deltoidea John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2367 Plumas Butterfly Botanical Area. Confluence of Spanish Creek & Butterfly Creek Comment
  CAS-BOT-BC100815  Chrysothamnus viscidiflorus subsp. viscidiflorus John Thomas Howell 1959-9-25 35022 Plumas Summit of Beckwourth Pass 1588 Comment
  CAS-BOT-BC100818  Chrysothamnus viscidiflorus subsp. viscidiflorus John Thomas Howell 1961-9-25 36963 Plumas Portola 1478 Comment
  CAS-BOT-BC100819  Chrysothamnus viscidiflorus subsp. viscidiflorus John Thomas Howell 1959-9-24 34968 Plumas Sierra Valley near Beckwourth 1478 Comment
  CAS-BOT-BC100824  Chrysothamnus viscidiflorus subsp. viscidiflorus John Thomas Howell 1977-8-11 52671 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir 1676 Comment
  CAS-BOT-BC101873  Juglans John Thomas Howell; H. Keith Wagnon 1980-5-26 53588 Plumas Lewisia Rock, Feather River Canyon 3.5 miles southwest of Belden 609 Comment
  CAS-BOT-BC103064  Salix bonplandiana John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54338 Plumas 2.8 miles north-northeast of Englemine on Diamond Mt. Road 1341 Comment
  CAS-BOT-BC103876  Salix exigua John Thomas Howell; H. Keith Wagnon 1980-5-26 53592 Plumas North Fork of Feather River between the mouth of East Branch and Caribou 792 Comment
  CAS-BOT-BC103877  Salix exigua John Thomas Howell 1959-9-21 34770 Plumas Bars of N. Fk. of Feather River near Belden 701 Comment
  CAS-BOT-BC103879  Salix exigua John Thomas Howell; H. Keith Wagnon 1980-5-26 53591 Plumas North Fork of Feather River between the mouth of East Branch and Caribou 792 Comment
  CAS-BOT-BC103880  Salix exigua John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54334 Plumas 2.8 miles north-northeast of Englemine on Diamond Mt. Road 1341 Comment
  CAS-BOT-BC103881  Salix exigua John Thomas Howell 1967-6-22 42653 Plumas Near mouth of Chambers Creek. Canyon of the Feather River North Fork 609 Comment
  CAS-BOT-BC103885  Salix exigua John Thomas Howell 36928 Plumas Feather River bed, Portola 1478 Comment
  CAS-BOT-BC104604  Quercus vacciniifolia John Thomas Howell 1960-7-20 35742 Plumas Lassen Volcanic National Park, Boiling Springs Lake 1798 Comment
  CAS-BOT-BC104605  Quercus vacciniifolia John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54401 Plumas Sierra Nevada, Basalt Formation, Walker Plain, about 8 miles SW of Bucks Lake on road to Oroville 1554 Comment
  CAS-BOT-BC105205  Marsilea oligospora John Thomas Howell 1961-9-25 36949 Plumas Feather River bed, Portola 1478 Comment
  CAS-BOT-BC105312  Quercus kelloggii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54295 Plumas E side of Indian Valley just N of Taylorsville 1112 Comment
  CAS-BOT-BC105314  Quercus kelloggii John Thomas Howell 1976-7-14 51823 Plumas American Valley near Quincy on road to Quincy Junction 1036 Comment
  CAS-BOT-BC105583  Populus trichocarpa John Thomas Howell 1961-9-23 36830 Plumas Indian Valley - Sierra Nevada 1082 Comment
  CAS-BOT-BC105584  Populus trichocarpa John Thomas Howell; Gordon H. True 1969-6-23 45816 Plumas Middle Fork of Feather River at Nelson Point - Sierra Nevada 1249 Comment
  CAS-BOT-BC106227  Brickellia californica John Thomas Howell; Gordon H. True 1974-7-30 50632 Plumas Sierra Nevada - Slately rock of roadcut, Keddie 975 Comment
  CAS-BOT-BC106230  Brickellia californica John Thomas Howell; H. Keith Wagnon 1980-5-28 53709 Plumas North Fork Feather River Canyon 4 miles northeast of Pulga Bridge in area of granitic rock - Sierra Nevada Comment
  CAS-BOT-BC106231  Brickellia californica John Thomas Howell 1961-9-23 36895 Plumas Engel Mine [Englemine] - Sierra Nevada 1097 Comment
  CAS-BOT-BC106232  Brickellia californica John Thomas Howell 1959-9-21 34774 Plumas Dry rocky river bench, N. Fk. Feather River near Belden 701 Comment
  CAS-BOT-BC106458  Balsamorhiza hookeri John Thomas Howell 1962-6-18 37788 Plumas Sierra Valley near Beckwourth - Sierra Nevada 1487 Comment
  CAS-BOT-BC107852  Salix gooddingii John Thomas Howell 1959-9-21 34768 Plumas Bars of N. Fork Feather River near Belden - Sierra Nevada 701 Comment
  CAS-BOT-BC107968  Salix geyeriana John Thomas Howell 1955-7-20 30840 Plumas Mohawk 1371 Comment
  CAS-BOT-BC108707  Ribes cereum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54274 Plumas Sierra Nevada. Rocky summit ridge, Mount Hough. 2203 Comment
  CAS-BOT-BC109297  Rumex paucifolius John Thomas Howell 1962-6-18 37770 Plumas Sierra Nevada. Sierra Valley near Beckwourth. 1487 Comment
  CAS-BOT-BC11027  Mimulus suksdorfii John Thomas Howell 1962-6-18 37802 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC110552  Eschscholzia John Thomas Howell 1955-7-19 30752 Plumas Sierra Nevada. Beckwourth. 1493 Comment
  CAS-BOT-BC110554  Eschscholzia John Thomas Howell 1959-9-24 34964 Plumas Sierra Nevada. Sierra Valley near Beckwourth. 1478 Comment
  CAS-BOT-BC111002  Scirpus microcarpus John Thomas Howell 1961-9-22 36795 Plumas Work Creek, Greenville 1088 Comment
  CAS-BOT-BC111273  Schoenoplectus acutus var. occidentalis John Thomas Howell 1960-7-19 35650 Plumas Wet slope near hot springs, Drakesbad, Lassen Volcanic National Park. 1828 Comment
  CAS-BOT-BC111919  Rhynchospora glomerata var. capitellata John Thomas Howell 1976-7-15 51869 Plumas Snake Lake, about 4 miles northwest of Quincy. 1219 Comment
  CAS-BOT-BC112053  Eleocharis quinqueflora John Thomas Howell 1960-7-19 35662 Plumas Drakesbad, moist soil near hot springs. 1828 Comment
  CAS-BOT-BC112917  Eleocharis macrostachya John Thomas Howell 1926-7-26 2133 Plumas Near Prattville 1371 Comment
  CAS-BOT-BC113396  Eleocharis engelmannii var. detonsa John Thomas Howell 1976-7-15 51853 Plumas Snake Lake, ca/ 4 mi NW of Quincy. 1219 Comment
  CAS-BOT-BC113397  Eleocharis engelmannii var. detonsa John Thomas Howell 1951-8-20 28212 Plumas Genessee 1127 Comment
  CAS-BOT-BC113508  Eleocharis bella John Thomas Howell 1960-7-22 35879 Plumas Wet meadow, Drakesbad. 1828 Comment
  CAS-BOT-BC113509  Eleocharis bella John Thomas Howell 1960-7-19 35706 Plumas Wet meadow, Drakesbad. 1828 Comment
  CAS-BOT-BC113513  Eleocharis bella John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-12 2147 Plumas Pond reservoir. 1127 Comment
  CAS-BOT-BC113875  Cyperus niger var. capitatus John Thomas Howell 1959-9-22 34871 Plumas On hot spring terraces, Drakesbad. 1737 Comment
  CAS-BOT-BC114131  Cyperus squarrosus John Thomas Howell 1926-7-26 2125 Plumas Near Prattville. 1371 Comment
  CAS-BOT-BC114934  Carex whitneyi John Thomas Howell 1977-6-20 52407 Plumas On the peninsula of Lake Almanor. 1371 Comment
  CAS-BOT-BC114935  Carex whitneyi John Thomas Howell 1951-6-27 27567 Plumas Johnsonville 1584 Comment
  CAS-BOT-BC114936  Carex whitneyi John Thomas Howell 1960-7-20 35733 Plumas Drakesbad, Boiling Springs Lake trail. 1828 Comment
  CAS-BOT-BC114991  Carex subfusca John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54344 Plumas 2.8 mi NNE of Englemine on Diamond Mt. Road. 1341 Comment
  CAS-BOT-BC114993  Carex subfusca John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1968-6-11 2377 Plumas Moist roadside hollow in canyon of Butterfly Creek between Spanish Creek and Butterfly V. Comment
  CAS-BOT-BC114996  Carex subfusca John Thomas Howell 1951-6-27 27600 Plumas McRae Meadow. 1981 Comment
  CAS-BOT-BC114997  Carex subfusca John Thomas Howell 1951-6-28 27651 Plumas Johnsville 1584 Comment
  CAS-BOT-BC114998  Carex subfusca John Thomas Howell 1960-7-18 35565 Plumas Meadow, Drakesbad. 1828 Comment
  CAS-BOT-BC115154  Carex vesicaria John Thomas Howell 1961-9-23 36858 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC115155  Carex vesicaria John Thomas Howell 1960-7-19 35626 Plumas Meadow, Drakesbad. 1828 Comment
  CAS-BOT-BC115407  Carex utriculata John Thomas Howell 1976-7-15 51854 Plumas Snake Lake, ca 4 mi NW of Quincy. 1219 Comment
  CAS-BOT-BC115410  Carex utriculata John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54182 Plumas Long Valley at road to Maxwell Mine. 1633 Comment
  CAS-BOT-BC115996  Carex subfusca John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54116 Plumas 10.6 mi NE of La Porte on road to Quincy. 1889 Comment
  CAS-BOT-BC115997  Carex subfusca John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54115 Plumas 10.6 mi NE of La Porte on road to Quincy. 1889 Comment
  CAS-BOT-BC116105  Delphinium nuttallianum John Thomas Howell 1960-7-22 35898 Plumas Devil's Kitchen to Drakesbad 1828 Comment
  CAS-BOT-BC116534  Delphinium nuttallianum J. T. Howell 1962-6-18 37737 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC117738  Carex simulata John Thomas Howell 1967-6-23 42710 Plumas Butterfly Valley. 1066 Comment
  CAS-BOT-BC117739  Carex simulata John Thomas Howell 1960-7-19 35648 Plumas Wet slope near hot springs, Drakesbad. 1828 Comment
  CAS-BOT-BC117898  Carex scabriuscula John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54148 Plumas 2.65 miles W of Round Valley Reservoir dam. 1569 Comment
  CAS-BOT-BC117899  Carex scabriuscula John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54149 Plumas 2.65 miles W of Round Valley Reservoir dam. 1569 Comment
  CAS-BOT-BC118126  Carex rossii John Thomas Howell 1951-6-28 27709 Plumas Eureka Peak 2255 Comment
  CAS-BOT-BC118127  Carex rossii John Thomas Howell 1962-6-17 37706 Plumas Portola 1463 Comment
  CAS-BOT-BC118130  Carex rossii John Thomas Howell 1960-7-22 35913 Plumas Devil's Kitchen to Drakesbad 1828 Comment
  CAS-BOT-BC118131  Carex rossii John Thomas Howell 1960-7-22 35890 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC118132  Carex rossii John Thomas Howell 1960-7-17 35490 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC118134  Carex rossii John Thomas Howell; R. C. Barneby 1954-5-14 29560 Plumas 11 mi NW of Blairsden Comment
  CAS-BOT-BC118138  Carex rossii John Thomas Howell; Gordon H. True 1967-7-11 43333 Plumas Summit ridge of Mt. Hough. 2194 Comment
  CAS-BOT-BC119185  Carex pachystachya John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54178 Plumas Long Valley at road to Maxwell Mine. 1633 Comment
  CAS-BOT-BC119188  Carex pachystachya John Thomas Howell 1960-7-23 35958 B Plumas Meadow borders, Drakesbad. 1828 Comment
  CAS-BOT-BC119189  Carex pachystachya John Thomas Howell 1960-7-19 35653 Plumas Wet slope near hot springs, Drakesbad. 1828 Comment
  CAS-BOT-BC119293  Carex occidentalis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54397 Plumas Meadow and meadow borders, 0.3 mi SW of Bucks Summit on road to Bucks Lake. 1645 Comment
  CAS-BOT-BC119521  Carex nudata John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-10 2170 Plumas Mouth of Butterfly Creek. 883 Comment
  CAS-BOT-BC119684  Carex nervina John Thomas Howell 1951-6-27 27614 Plumas Jamison Creek 1950 Comment
  CAS-BOT-BC119854  Carex nebrascensis John Thomas Howell 1960-7-22 35881 Plumas Wet meadow, Drakesbad 1828 Comment
  CAS-BOT-BC119855  Carex nebrascensis John Thomas Howell 1951-6-28 27674 Plumas Jamison Creek 1584 Comment
  CAS-BOT-BC119856  Carex nebrascensis John Thomas Howell 1962-6-18 37741 Plumas Sierra Valley near Beckwourth. 1487 Comment
  CAS-BOT-BC121002  Paeonia brownii J. T. Howell; Gordon H. True 1967-7-11 43366 Plumas Southeast slope of Mt. Hough 2042 Comment
  CAS-BOT-BC121004  Paeonia brownii J. T. Howell 1962-6-19 37849 Plumas The Buttes, near Sierra Valley. 1493 Comment
  CAS-BOT-BC121742  Delphinium patens subsp. patens John Thomas Howell 1951-6-27 27579 Plumas McRae Meadow 1981 Comment
  CAS-BOT-BC124787  Salix lemmonii John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2398 Plumas Butterfly Botanical Area Comment
  CAS-BOT-BC124788  Salix lemmonii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54095 Plumas 10.6 miles northeast of La Porte on road to Quincy 1889 Comment
  CAS-BOT-BC124789  Salix lemmonii John Thomas Howell; Gordon H. True 1973-7-31 50133 Plumas on road from Janesville to Thompson Peak, Diamond Range 1905 Comment
  CAS-BOT-BC124794  Salix lemmonii John Thomas Howell 1961-6-21 36607 Plumas Greenville 1097 Comment
  CAS-BOT-BC124796  Salix lemmonii John Thomas Howell 1960-7-20 35724 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC124803  Salix lemmonii John Thomas Howell 1961-9-25 36927 Plumas Feather River bed, Portola 1478 Comment
  CAS-BOT-BC125309  Salix lasiandra var. lasiandra John Thomas Howell 1955-7-20 30841 Plumas Mohawk 1371 Comment
  CAS-BOT-BC125311  Salix lasiandra var. lasiandra John Thomas Howell 1961-9-25 36929 Plumas Feather River bed, Portola 1478 Comment
  CAS-BOT-BC125313  Salix lasiandra var. lasiandra John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54336 Plumas 2.8 miles north-northeast of Englemine on Diamond Mt. Road 1341 Comment
  CAS-BOT-BC125318  Salix lasiandra var. lasiandra John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2399 Plumas Butterfly Botanical Area. Valley proper Comment
  CAS-BOT-BC125323  Salix lasiandra var. lasiandra John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1967-6-12 1974 Plumas In valley proper, Butterfly Botanical Area and Vicinity 1066 Comment
  CAS-BOT-BC125330  Salix lasiandra var. lasiandra John Thomas Howell 1977-8-11 52675 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir 1676 Comment
  CAS-BOT-BC127081  Agrostis exarata John Thomas Howell; Gordon H. True 1973-7-31 50087 Plumas Sierra Nevada. Summit ridge of Thompson Peak. Diamond Range. 2194 Comment
  CAS-BOT-BC127082  Agrostis exarata John Thomas Howell 1961-9-24 36918 Plumas Sierra Nevada. Feather River bed southwest of Beckwourth. 1487 Comment
  CAS-BOT-BC127084  Agrostis exarata John Thomas Howell 1976-7-16 51905 Plumas Sierra Nevada. On flood plain of Spanish Creek at mouth of Wapaunsie Creek. 1097 Comment
  CAS-BOT-BC127085  Agrostis exarata John Thomas Howell 1960-7-22 35883 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC127087  Agrostis exarata John Thomas Howell 1960-7-18 35520 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC127089  Agrostis exarata John Thomas Howell 1926-7-26 2126 Plumas Near Prattville. 1371 Comment
  CAS-BOT-BC127094  Agrostis exarata John Thomas Howell 1959-9-25 35005 Plumas Sierra Nevada. 2 miles east of Portola. 1484 Comment
  CAS-BOT-BC127095  Agrostis exarata John Thomas Howell 1976-7-16 51904 Plumas Sierra Nevada. Spanish Creek at mouth of Wapaunsie Creek. 1097 Comment
  CAS-BOT-BC127103  Agrostis exarata John Thomas Howell 1951-6-29 27751 Plumas Feather River Canyon. 548 Comment
  CAS-BOT-BC127494  Agrostis capillaris John Thomas Howell 1955-7-19 30828 Plumas Sierra Nevada. Mohawk. 1371 Comment
  CAS-BOT-BC127593  Agropyron cristatum John Thomas Howell 1962-6-18 37794 Plumas Sierra Nevada. Sierra Valley near Beckwourth. 1487 Comment
  CAS-BOT-BC127597  Agropyron cristatum John Thomas Howell; H. Keith Wagnon 1980-5-28 53708 Plumas Sierra Nevada. North Fork Feather River Canyon 4 miles northeast of Pulga Bridge. Comment
  CAS-BOT-BC127777  Brickellia grandiflora John Thomas Howell 1926-7-26 2117 Plumas Near Prattville 1524 Comment
  CAS-BOT-BC128021  Blepharipappus scaber John Thomas Howell 1962-6-18 37787 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC12825  Lepidium perfoliatum John Thomas Howell 1955-7-19 30791 Plumas Sierra Nevada. Vinton. 1505 Comment
  CAS-BOT-BC12826  Lepidium perfoliatum John Thomas Howell 1962-6-17 37732 Plumas Sierra Nevada. Portola. 1463 Comment
  CAS-BOT-BC128438  Salix lasiolepis var. lasiolepis John Thomas Howell 1977-8-11 52676 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Rerservoir 1676 Comment
  CAS-BOT-BC128439  Salix lasiolepis var. lasiolepis John Thomas Howell 1959-9-21 34771 Plumas Bars of N. Fork Feather River near Belden - Sierra Nevada 701 Comment
  CAS-BOT-BC128440  Salix lasiolepis var. lasiolepis John Thomas Howell 1973-7-10 49744 Plumas Open yellow pine forest near Greenville - Sierra Nevada 1097 Comment
  CAS-BOT-BC128441  Salix lasiolepis var. lasiolepis John Thomas Howell; Keith Wagnon 1980-5-26 53596 Plumas North Fork of Feather River between the mouth of East Branch and Caribou - Sierra Nevada 792 Comment
  CAS-BOT-BC128442  Salix lasiolepis var. lasiolepis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54287 Plumas Moist seepage area on China Grade, 1.4 miles south of Taylorsville - Sierra Nevada 1402 Comment
  CAS-BOT-BC128861  Philadelphus John Thomas Howell 1962-6-16 37635 Plumas Lewisia Rock, Feather River North Fork - Sierra Nevada 640 Comment
  CAS-BOT-BC129098  Salix scouleriana John Thomas Howell 1959-9-26 35048 Plumas Near Keddie - Sierra Nevada 1005 Comment
  CAS-BOT-BC129384  Salix melanopsis John Thomas Howell 1959-9-21 34769 Plumas Bars of N. Fork Feather River near Belden - Sierra Nevada 701 Comment
  CAS-BOT-BC129385  Salix melanopsis John Thomas Howell; Gordon H. True 1967-7-9 43253 Plumas North Fork of Feather River 3 miles southwest of Caribou - Sierra Nevada 853 Comment
  CAS-BOT-BC129386  Salix melanopsis John Thomas Howell 1976-7-16 51897 Plumas Hydraulic mining gravels on flood plain of Spanish Cr. at mouth of Wapaunsie Creek - Sierra Nevada 1097 Comment
  CAS-BOT-BC131948  Allium tribracteatum John Thomas Howell; Gordon H. True 1967-7-11 43372 Plumas About 2 miles southeast of Mt. Hough 1828 Comment
  CAS-BOT-BC131953  Allium John Thomas Howell 1959-9-24 34901 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC13437  Agoseris retrorsa John Thomas Howell 1960-7-19 35693 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC13438  Agoseris retrorsa John Thomas Howell 1961-6-21 36652 Plumas Greenville 1097 Comment
  CAS-BOT-BC13541  Ambrosia acanthicarpa John Thomas Howell 1959-9-25 35025 Plumas Summit of Beckwourth Pass 1588 Comment
  CAS-BOT-BC13542  Ambrosia acanthicarpa John Thomas Howell 1959-9-25 34981 Plumas Portola 1478 Comment
  CAS-BOT-BC135726  Iris hartwegii John Thomas Howell 1962-6-17 37680 Plumas Butterfly Valley - Sierra Nevada 1036 Comment
  CAS-BOT-BC136149  Dodecatheon alpinum John Thomas Howell 1951-6-27 27612 Plumas Jamison Creek - Sierra Nevada 1950 Comment
  CAS-BOT-BC136785  Amelanchier utahensis John Thomas Howell 1973-7-9 49717 Plumas Round Valley 1371 Comment
  CAS-BOT-BC136786  Amelanchier utahensis John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1969-6-24 2436 Plumas Vicinity of mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC137707  Anthoxanthum odoratum John Thomas Howell 1968-6-10 s.n. Plumas Sierra Nevada. Meadow at Quincy. 1036 Comment
  CAS-BOT-BC137708  Anthoxanthum odoratum John Thomas Howell 1975-7-22 51348 Plumas Sierra Nevada. Quincy Junction Road near Quincy. 1036 Comment
  CAS-BOT-BC137993  Alopecurus geniculatus John Thomas Howell 1961-9-23 36875 Plumas Sierra Nevada. Cooks Creek near Englemine. 1082 Comment
  CAS-BOT-BC137996  Alopecurus geniculatus John Thomas Howell 1926-7-26 2129 Plumas Prattville. 1371 Comment
  CAS-BOT-BC138000  Alopecurus geniculatus John Thomas Howell 1960-7-22 35882 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC138371  Aira caryophyllea var. caryophyllea John Thomas Howell 1961-9-23 36868 Plumas Sierra Nevada. Indian Valley. 1082 Comment
  CAS-BOT-BC138372  Aira caryophyllea var. caryophyllea John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1968-6-11 2388 Plumas Sierra Nevada. Butterfly Valley. Comment
  CAS-BOT-BC138711  Agrostis scabra John Thomas Howell 1926-7-26 2127 Plumas Near Prattville. 1371 Comment
  CAS-BOT-BC138714  Agrostis scabra John Thomas Howell 1960-7-18 35523 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC138994  Agrostis pallens John Thomas Howell 1951-6-28 27686 Plumas Eureka Peak. 2133 Comment
  CAS-BOT-BC138995  Agrostis pallens John Thomas Howell 1962-6-18 37783 Plumas Sierra Nevada. Sierra Valley near Beckwourth. 1487 Comment
  CAS-BOT-BC139602  Agrostis gigantea John Thomas Howell 1976-7-16 31906 Plumas Sierra Nevada. Spanish Creek at mouth of Wapaunsie Creek. 1097 Comment
  CAS-BOT-BC139604  Agrostis gigantea John Thomas Howell 1976-7-15 51837 Plumas Sierra Nevada. Snake Lake, about 4 miles northwest of Quincy. 1219 Comment
  CAS-BOT-BC139609  Agrostis gigantea John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-10 2211 Plumas Butterfly Botanical Area and Vicinity. Mouth of Butterfly Creek. 883 Comment
  CAS-BOT-BC139613  Agrostis gigantea John Thomas Howell 1926-7-26 2135 Plumas Near Prattville. 1371 Comment
  CAS-BOT-BC139618  Agrostis gigantea John Thomas Howell 1960-7-18 35521 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC140196  Malus John Thomas Howell 1959-9-21 34783 Plumas N. Fk. Feather River near Belden 701 Comment
  CAS-BOT-BC140522  Physocarpus John Thomas Howell 1959-9-24 34938 Plumas Butterfly Creek near mouth Comment
  CAS-BOT-BC14105  Boechera pauciflora John Thomas Howell; Gordon H. True 1969-6-23 45834 Plumas Sierra Nevada. Middle Fork of Feather River at Nelson Point. 1249 Comment
  CAS-BOT-BC141573  Crataegus douglasii John Thomas Howell 1973-7-9 49710 Plumas Crescent Mills - Sierra Nevada 1066 Comment
  CAS-BOT-BC14256  Boechera pinetorum John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1968-6-11 2403 Plumas Sierra Nevada. Butterfly Botanical Area. Near Pond reservoir. Comment
  CAS-BOT-BC142923  Amelanchier John Thomas Howell 1961-6-21 36590 Plumas Greenville - Sierra Nevada 1097 Comment
  CAS-BOT-BC143433  Drymocallis lactea John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54395 Plumas 0.3 miles southwest of Bucks Summit on road to Bucks Lake 1645 Comment
  CAS-BOT-BC143993  Horkelia fusca var. tenella John Thomas Howell 1926-7-26 2128 Plumas Near Prattville 1371 Comment
  CAS-BOT-BC144397  Garrya fremontii John Thomas Howell 1959-9-21 34780 Plumas N. Fk. Feather River near Belden 701 Comment
  CAS-BOT-BC14469  Boechera platysperma John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54268 Plumas Sierra Nevada. Rocky summit ridge, Mount Hough. 2203 Comment
  CAS-BOT-BC145250  Potentilla rivalis John Thomas Howell 1977-6-20 52367 Plumas On the peninsula of Lake Almanor 1371 Comment
  CAS-BOT-BC145806  Beckmannia syzigachne John Thomas Howell 1973-7-9 49709 Plumas Sierra Nevada. Crescent Mills. 1066 Comment
  CAS-BOT-BC145807  Beckmannia syzigachne John Thomas Howell 1962-6-18 37747 Plumas Sierra Nevada. Sierra Valley near Beckwourth. 1487 Comment
  CAS-BOT-BC145812  Beckmannia syzigachne John Thomas Howell 1951-8-20 28216 Plumas Sierra Nevada. Genesee. 1127 Comment
  CAS-BOT-BC145814  Beckmannia syzigachne John Thomas Howell 1961-9-25 36938 Plumas Sierra Nevada. Feather River bed, Portola. 1478 Comment
  CAS-BOT-BC146265  Arrhenatherum elatius var. elatius John Thomas Howell 1962-6-18 37759 Plumas Sierra Nevada. Sierra Valley near Beckwourth. 1487 Comment
  CAS-BOT-BC146267  Arrhenatherum elatius var. elatius John Thomas Howell 1975-7-22 51346 Plumas Sierra Nevada. Quincy Junction Road near Quincy. 1036 Comment
  CAS-BOT-BC146374  Rosa J. T. Howell 1977-6-20 52371 Plumas Lake Almanor Peninsula 1371 Comment
  CAS-BOT-BC146375  Rosa John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54377 Plumas 0.75 miles northeast of Bucks Summit on road to Quincy 1600 Comment
  CAS-BOT-BC14655  Boechera rectissima John Thomas Howell 1960-7-19 35636 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC14656  Boechera rectissima John Thomas Howell 1961-6-21 36610 Plumas Sierra Nevada. Greenville. 1097 Comment
  CAS-BOT-BC14657  Boechera rectissima John Thomas Howell; Gordon H. True 1973-7-31 50081 Plumas Sierra Nevada. Diamond Range. Summit ridge of Thompson Peak. 2362 Comment
  CAS-BOT-BC146929  Rosa woodsii John Thomas Howell 1963-6-3 39389 Plumas Quincy 1036 Comment
  CAS-BOT-BC14703  Boechera rectissima John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1969-6-24 2428 Plumas Butterfly Botanical Area and Vicinity. Collected in vicinty of mouth of Butterfly Creek. 883 Comment
  CAS-BOT-BC147044  Rosa pisocarpa John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1969-6-24 2453 Plumas Butterfly Creek Canyon 975 Comment
  CAS-BOT-BC147045  Rosa pisocarpa John Thomas Howell 1961-6-21 36701 Plumas Greenville 1097 Comment
  CAS-BOT-BC147048  Rosa pisocarpa John Thomas Howell 1977-6-21 52377 Plumas Seneca 1097 Comment
  CAS-BOT-BC147367  Rubus pensilvanicus John Thomas Howell 1976-7-15 51875 Plumas Snake Lake, about 4 miles north-west of Quincy 1219 Comment
  CAS-BOT-BC147388  Rosa californica John Thomas Howell 1961-9-23 36834 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC147868  Purshia tridentata var. tridentata John Thomas Howell 1960-7-19 35686 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC147878  Purshia tridentata var. tridentata John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2207 Plumas Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC148163  Rosa gymnocarpa John Thomas Howell 1951-8-19 28186 Plumas Greenville 1097 Comment
  CAS-BOT-BC148164  Rosa gymnocarpa John Thomas Howell 1976-7-15 51866 Plumas Snake Lake, about 4 miles northwest of Quincy - Sierra Nevada 1219 Comment
  CAS-BOT-BC148165  Rosa gymnocarpa John Thomas Howell 1959-9-24 34932 Plumas Butterfly Creek near mouth - Sierra Nevada Comment
  CAS-BOT-BC148166  Rosa gymnocarpa John Thomas Howell 1967-6-23 42675 Plumas Canyon of Butterfly Creek - Sierra Nevada 1036 Comment
  CAS-BOT-BC148167  Rosa gymnocarpa John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54191 Plumas 4 miles north of Grays Flat, on road to Long Valley - Sierra Nevada 1447 Comment
  CAS-BOT-BC148173  Rosa gymnocarpa John Thomas Howell; Walter Knight; Irja Knight; Gordon H. True 1967-7-12 2112 Plumas At spring - Butterfly Botanical Area and vicnity 1127 Comment
  CAS-BOT-BC148431  Crataegus suksdorfii John Thomas Howell 1961-9-23 36835 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC148703  Bromus carinatus var. marginatus John Thomas Howell 1960-7-18 35564 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC148707  Bromus carinatus var. marginatus John Thomas Howell 1960-7-17 35498 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC148708  Bromus carinatus var. marginatus John Thomas Howell 1960-7-23 35932 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC148710  Bromus carinatus var. marginatus John Thomas Howell 1960-7-23 35929 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC148711  Bromus carinatus var. marginatus John Thomas Howell 1975-7-22 51369 Plumas Sierra Nevada. 2 miles northwest of Spring Garden. 1173 Comment
  CAS-BOT-BC148714  Bromus carinatus var. marginatus John Thomas Howell; Gordon H. True 1973-7-31 50104 Plumas Sierra Nevada. Summit ridge of Thompson Peak, Diamond Range. 2194 Comment
  CAS-BOT-BC148715  Bromus carinatus var. marginatus John Thomas Howell 1955-7-19 30756 Plumas Sierra Nevada. Beckwourth. 1493 Comment
  CAS-BOT-BC148718  Bromus carinatus var. marginatus John Thomas Howell 1967-7-10 2186 Plumas Butterfly Botanical Area and Vicinity. Mouth of Butterfly Creek. 883 Comment
  CAS-BOT-BC148719  Bromus carinatus var. marginatus John Thomas Howell 1967-6-23 42674 Plumas Sierra Nevada. Canon of Butterfly Creek. 1036 Comment
  CAS-BOT-BC148747  Bromus carinatus var. marginatus John Thomas Howell 1951-6-28 27657 Plumas Sierra Nevada. Johnsville. 1584 Comment
  CAS-BOT-BC149310  Bromus carinatus var. carinatus John Thomas Howell 1951-6-26 27551 Plumas Sierra Nevada. Greenville. 1091 Comment
  CAS-BOT-BC149314  Bromus carinatus var. carinatus John Thomas Howell; Gordon H. True 1973-8-1 50194 Plumas Sierra Nevada. Ca. 2.5 miles southeast of Diamond Mountain. 2164 Comment
  CAS-BOT-BC149315  Bromus carinatus var. carinatus John Thomas Howell 1961-9-23 36899 Plumas Sierra Nevada. Crescent Mills. 1066 Comment
  CAS-BOT-BC149318  Bromus carinatus var. carinatus John Thomas Howell 1973-7-10 49751 Plumas Sierra Nevada. Near Greenville. 1097 Comment
  CAS-BOT-BC149320  Bromus carinatus var. carinatus John Thomas Howell 1959-9-21 34829 Plumas Sierra Nevada. Greenville. 1088 Comment
  CAS-BOT-BC149321  Bromus carinatus var. carinatus John Thomas Howell; Gordon H. True 1967-7-11 43375 Plumas Sierra Nevada. Meadow at Quincy. 1036 Comment
  CAS-BOT-BC149324  Bromus carinatus var. carinatus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54305 Plumas Sierra Nevada. East side of Indian Valley just north of Taylorsville. 1112 Comment
  CAS-BOT-BC149638  Spiraea douglasii John Thomas Howell 1961-6-21 36605 Plumas Greenville 1097 Comment
  CAS-BOT-BC149641  Spiraea douglasii John Thomas Howell 1960-7-18 35583 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC149653  Spiraea douglasii John Thomas Howell 1924-8-10 617 Plumas Butterfly Valley near Quincy Comment
  CAS-BOT-BC149665  Spiraea douglasii John Thomas Howell; Gordon H. True 1973-7-31 50134 Plumas On road from Janesville to Thompson Peak, Diamond Range 1905 Comment
  CAS-BOT-BC149729  Rosa woodsii subsp. ultramontana John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2205 Plumas Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC149733  Rosa woodsii subsp. ultramontana John Thomas Howell 1955-7-20 30843 Plumas Mohawk 1371 Comment
  CAS-BOT-BC150020  Holodiscus discolor var. discolor John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2180 Plumas Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC150231  Erythranthe nasuta John Thomas Howell 1967-6-23 42733 Plumas Lewisia Rock 3.5 miles sw. of Belden, Feather River Canyon 609 Comment
  CAS-BOT-BC151259  Diplacus torreyi John Thomas Howell 1926-7-26 2123 Plumas Near Prattville 1371 Comment
  CAS-BOT-BC151818  Diplacus mephiticus John Thomas Howell 1977-6-21 52390 Plumas Cut at north end of Butt Valley Reservoir - Sierra Nevada 1264 Comment
  CAS-BOT-BC151819  Diplacus mephiticus John Thomas Howell; Gordon H. True 1967-7-11 43368 Plumas About 2 miles southeast of Mt. Hough - Sierra Nevada 1828 Comment
  CAS-BOT-BC151820  Diplacus mephiticus John Thomas Howell; T. C. Fuller 1981-6-25 54312 Plumas Near Englemine on Diamond Mt. Road northest of Taylorsville - Sierra Nevada 1219 Comment
  CAS-BOT-BC152723  Holodiscus microphyllus var. microphyllus John Thomas Howell; Gordon H. True 1973-7-31 50068 Plumas Summit ridge of Thompson Peak, Diamond Range - Sierra Nevada 2362 Comment
  CAS-BOT-BC153619  Erythranthe moniliformis John Thomas Howell 1976-7-16 51910 Plumas On flood plain of Spanish Creek at mouth of Wapaunsie Creek 1097 Comment
  CAS-BOT-BC15456  Agoseris glauca var. glauca John Thomas Howell 1962-6-17 37701 Plumas Portola 1463 Comment
  CAS-BOT-BC154844  Prunus virginiana var. demissa John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1967-6-12 1975 Plumas Butterfly Botanical Area and Vicinity 990 Comment
  CAS-BOT-BC154845  Prunus virginiana var. demissa John Thomas Howell 1961-6-21 36648 Plumas Greenville 1097 Comment
  CAS-BOT-BC155053  Bromus hordeaceus John Thomas Howell 1967-6-23 42698 a Plumas Sierra Nevada. Butterfly Valley. 1036 Comment
  CAS-BOT-BC155054  Bromus hordeaceus John Thomas Howell 1962-6-17 37690 Plumas Sierra Nevada. Butterfly Valley. 1036 Comment
  CAS-BOT-BC155313  Bromus inermis John Thomas Howell 1962-6-19 37876 Plumas Sierra Nevada. Vinton. 1508 Comment
  CAS-BOT-BC155348  Bromus japonicus John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-10 2169 Plumas Sierra Nevada. Butterfly Botanical Area and Vicinity. Mouth of Butterfly Creek. 883 Comment
  CAS-BOT-BC155796  Bromus diandrus John Thomas Howell 1961-6-21 36670 Plumas Sierra Nevada. Greenville. 1097 Comment
  CAS-BOT-BC155797  Bromus diandrus John Thomas Howell 1967-6-23 s.n. Plumas Sierra Nevada. Butterfly Valley. 1036 Comment
  CAS-BOT-BC155926  Bromus commutatus John Thomas Howell 1951-6-26 27538 Plumas Sierra Nevada. Feather River Canyon. 853 Comment
  CAS-BOT-BC155927  Bromus commutatus John Thomas Howell 1951-6-26 27538 Plumas Sierra Nevada. Feather River Canyon. 853 Comment
  CAS-BOT-BC155967  Bromus commutatus John Thomas Howell 1955-7-20 30867 Plumas Sierra Nevada. Mohawk. 1371 Comment
  CAS-BOT-BC155973  Bromus commutatus John Thomas Howell; Gordon H. True 1967-6-11 42582 Plumas Sierra Nevada. Meadow at Quincy. 1036 Comment
  CAS-BOT-BC156565  Rubus John Thomas Howell 1951-8-19 s.n. Plumas Near Paxton 914 Comment
  CAS-BOT-BC156840  Solanum umbelliferum J. T. Howell 1951-6-28 27644 Plumas Johnsville 1585 Comment
  CAS-BOT-BC156918  Rubus ursinus John Thomas Howell 1967-6-23 42707 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC156921  Rubus ursinus John Thomas Howell 1967-6-23 42679 Plumas Canyon of Butterfly Creek 1036 Comment
  CAS-BOT-BC156924  Rubus ursinus John Thomas Howell; H. Keith Wagnon 1980-5-26 53589 Plumas North Fork of Feather River between the mouth of East Branch and Caribou 792 Comment
  CAS-BOT-BC157363  Comarum palustre John Thomas Howell 1976-7-15 51834 Plumas Snake Lake, about 4 miles north-west of Quincy 1219 Comment
  CAS-BOT-BC158153  Prunus emarginata John Thomas Howell 1976-7-20 52036 Plumas At south end of Lake Almanor 1371 Comment
  CAS-BOT-BC158594  Prunus John Thomas Howell 1959-9-24 34940 Plumas Butterfly Creek near mouth Comment
  CAS-BOT-BC158595  Prunus John Thomas Howell; R. C. Barneby 1954-5-14 29550 Plumas Beckwourth Pass 1584 Comment
  CAS-BOT-BC159308  Drymocallis lactea var. lactea John Thomas Howell 1960-7-18 35554 Plumas Meadow border, Drakesbad - Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC159583  Drymocallis glandulosa var. glandulosa John Thomas Howell 1961-6-21 36628 Plumas Greenville - Sierra Nevada 1097 Comment
  CAS-BOT-BC159674  Drymocallis glandulosa John Thomas Howell 1976-7-16 51923 Plumas Just east of Bucks Summit on road to Meadow Valley - Sierra Nevada 1645 Comment
  CAS-BOT-BC16041  Boechera breweri subsp. shastaensis John Thomas Howell 1951-6-27 27639 Plumas Sierra Nevada. Jamison Creek. 1828 Comment
  CAS-BOT-BC16042  Boechera breweri subsp. shastaensis John Thomas Howell 1951-6-28 27665 Plumas Sierra Nevada. Jamison Creek. 1584 Comment
  CAS-BOT-BC160836  Camissonia tanacetifolia subsp. quadriperforata John Thomas Howell 1955-7-19 30753 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC160837  Camissonia tanacetifolia subsp. quadriperforata John Thomas Howell 1962-6-18 37769 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC161351  Bromus tectorum John Thomas Howell 1977-6-20 52410 Plumas SIerra Nevada. On the peninsula of Lake Almanor. 1371 Comment
  CAS-BOT-BC161352  Bromus tectorum John Thomas Howell 1955-7-19 30755 Plumas Sierra Nevada. Beckwourth. 1493 Comment
  CAS-BOT-BC16139  Boechera constancei John Thomas Howell 1974-9-20 40896 Plumas Sierra Nevada. About 2 miles from Spring Garden on road to Quincy. 1158 Comment
  CAS-BOT-BC16140  Boechera constancei John Thomas Howell 1975-6-16 51131 Plumas Sierra Nevada. 2 miles northwest of Spring Garden. 1173 Comment
  CAS-BOT-BC162144  Bromus orcuttianus John Thomas Howell 1968-6-11 2368 Plumas Sierra Nevada. Butterfly Botanical Area. Confluence of Spanish Creek & Butterfly Creeek. 883 Comment
  CAS-BOT-BC162148  Bromus orcuttianus John Thomas Howell 1951-6-28 27656 Plumas Sierra Nevada. Johnsville. 1584 Comment
  CAS-BOT-BC162149  Bromus orcuttianus John Thomas Howell 1960-7-21 35860 Plumas Lassen Volcanic National Park. On trail to Little Willow Lake. 1767 Comment
  CAS-BOT-BC162157  Bromus orcuttianus John Thomas Howell 1975-7-22 51363 Plumas Sierra Nevada. 2 miles northwest of Spring Garden. 1173 Comment
  CAS-BOT-BC162587  Clarkia John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54123 Plumas Quincy - Sierra Nevada 1036 Comment
  CAS-BOT-BC16280  Boechera howellii John Thomas Howell 1960-7-20 35758 Plumas Lassen Volcanic National Park. Boiling Springs Lake. 1798 Comment
  CAS-BOT-BC163857  Clarkia purpurea subsp. quadrivulnera John Thomas Howell 1975-6-16 51155 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC163861  Clarkia purpurea subsp. quadrivulnera John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-12 2133 Plumas At spring. Butterfly Botanical Area and Vicinity 1127 Comment
  CAS-BOT-BC164914  Clarkia rhomboidea John Thomas Howell 1961-6-21 36658 Plumas Greenville 1097 Comment
  CAS-BOT-BC164915  Clarkia rhomboidea John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2224 Plumas Trestle Glen Comment
  CAS-BOT-BC164918  Clarkia rhomboidea John Thomas Howell 1967-6-23 42718 Plumas Canyon of the East Branch of Feather River 2 miles east of Twain Comment
  CAS-BOT-BC164919  Clarkia rhomboidea John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-12 2110 Plumas Between valley proper and Darlingtonia bog 1066 Comment
  CAS-BOT-BC164920  Clarkia rhomboidea John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1969-6-24 2429 Plumas In vicinity of mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC164921  Clarkia rhomboidea John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1968-6-11 2348 Plumas Butterfly Botanical Area. Confluence of Spanish Creek & Butterfly Creek Comment
  CAS-BOT-BC165390  Clarkia stellata John Thomas Howell 1926-7-20 2081 Plumas Near Prattville 1463 Comment
  CAS-BOT-BC16560  Barbarea orthoceras John Thomas Howell 1960-7-18 35530 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC16561  Barbarea orthoceras John Thomas Howell 1967-6-23 42684 Plumas Sierra Nevada. Canyon of Butterfly Creek. 1036 Comment
  CAS-BOT-BC166080  Chamerion angustifolium subsp. circumvagum John Thomas Howell 1926-7-26 2121 Plumas Near Prattville 1463 Comment
  CAS-BOT-BC166082  Chamerion angustifolium subsp. circumvagum John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1968-6-11 2364 Plumas Along edge of Spanish Creek near confluence of Butterfly Creek. Butterfly Botanical Area Comment
  CAS-BOT-BC16873  Boechera John Thomas Howell 1976-7-16 s.n. Plumas On flood plain of Spanish Creek at mouth of Wapaunsie Creek. 1097 Comment
  CAS-BOT-BC169859  Garrya fremontii John Thomas Howell 1959-9-26 35043 Plumas Near Kiddie 1005 Comment
  CAS-BOT-BC169861  Garrya fremontii John Thomas Howell 1961-9-23 36891 Plumas Englemine 1097 Comment
  CAS-BOT-BC169862  Garrya fremontii John Thomas Howell 1967-6-23 42699 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC170696  Alnus rhombifolia John Thomas Howell 1959-9-24 34943 Plumas Spanish Creek at mouth of Butterfly Creek. Sierra Nevada 883 Comment
  CAS-BOT-BC170697  Alnus rhombifolia John Thomas Howell; Gordon H. True 1969-6-23 45817 Plumas on Middle Fork of Feather River at Nelson Point. Sierra Nevada 1249 Comment
  CAS-BOT-BC171348  Alnus incana subsp. tenuifolia John Thomas Howell 1959-9-24 34936 Plumas Butterfly Creek near mouth. Sierra Nevada 914 Comment
  CAS-BOT-BC171350  Alnus incana subsp. tenuifolia John Thomas Howell 1959-9-22 34833 Plumas Wolf Creek 1371 Comment
  CAS-BOT-BC171353  Alnus incana subsp. tenuifolia John Thomas Howell 1959-9-24 34936 Plumas Butterfly Creek near the mouth. Sierra Nevada 914 Comment
  CAS-BOT-BC171354  Alnus incana subsp. tenuifolia John Thomas Howell 1959-9-24 34936 Plumas Butterfly Creek near mouth. Sierra Nevada 914 Comment
  CAS-BOT-BC171723  Epilobium canum subsp. latifolium John Thomas Howell 1926-7-26 2119 Plumas Near Prattville 1524 Comment
  CAS-BOT-BC172900  Toxicodendron diversilobum John Thomas Howell 1967-6-23 42723 Plumas Canyon of the East Branch of Feather River 2 miles east of Twain Comment
  CAS-BOT-BC172901  Toxicodendron diversilobum John Thomas Howell 1959-9-21 34738 Plumas Belden 701 Comment
  CAS-BOT-BC17353  Arabis eschscholtziana John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1969-6-24 2446 Plumas Butterfly Botanical Area. From vicinity of mouth of Butterfly Creek. 883 Comment
  CAS-BOT-BC17390  Armoracia rusticana John Thomas Howell 1961-9-25 36960 Plumas Sierra Nevada. Portola. 1478 Comment
  CAS-BOT-BC174154  Eremogone aculeata John Thomas Howell 1951-6-28 27689 Plumas Eureka Peak 2133 Comment
  CAS-BOT-BC174300  Eremogone congesta var. suffrutescens John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2199 Plumas Mouth of Butterfly Creek. Butterfly Botanical Area and Vicinity 883 Comment
  CAS-BOT-BC175665  Viola sororia subsp. affinis John Thomas Howell 1976-7-15 51839 Plumas Snake Lake, about 4 miles northwest of Quincy 1219 Comment
  CAS-BOT-BC175675  Viola douglasii John Thomas Howell 1973-7-10 49747 Plumas Near Greenville 1097 Comment
  CAS-BOT-BC175767  Caltha leptosepala John Thomas Howell 1951-6-28 27701 Plumas Eureka Peak 1981 Comment
  CAS-BOT-BC17839  Carex amplifolia John Thomas Howell 1976-7-15 51874 Plumas Sierra Nevada. Snake Lake, about 4 miles northwest of Quincy. 1219 Comment
  CAS-BOT-BC17840  Carex amplifolia John Thomas Howell 1962-6-17 37651 Plumas Sierra Nevada. Butterfly Valley. 1036 Comment
  CAS-BOT-BC17935  Carex angustata John Thomas Howell 1960-7-19 35644 Plumas Lassen Volcanic National Park. Drakesbad. Near hot springs. 1828 Comment
  CAS-BOT-BC17936  Carex angustata John Thomas Howell 1960-7-22 35873 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC17937  Carex angustata John Thomas Howell 1960-7-22 35884 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC17939  Carex angustata John Thomas Howell 1960-7-23 35945 Plumas Lassen Volcanic National Park. Drakesbad. Near soda spring. 1828 Comment
  CAS-BOT-BC17940  Carex angustata John Thomas Howell 1960-7-23 35962 Plumas Lassen Volcanic National Park. Drakesbad. Dream Lake. 1828 Comment
  CAS-BOT-BC17943  Carex angustata John Thomas Howell; Gordon H. True 1967-7-9 43242 Plumas Sierra Nevada. North Fork of Feather River at Belden. 685 Comment
  CAS-BOT-BC181364  Silene occidentalis John Thomas Howell 1960-7-21 35857 Plumas Trail to Little Willow Lake, Lassen Volcanic National Park 1767 Comment
  CAS-BOT-BC182507  Cryptantha John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54299 Plumas East side of Indian Valley just north of Taylorsville 1112 Comment
  CAS-BOT-BC183207  Vulpia microstachys var. ciliata John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1967-6-12 1984 Plumas Near barn in valley proper. Butterfly Botanical Area and Vicinity 1036 Comment
  CAS-BOT-BC18363  Carex John Thomas Howell; Gordon H. True 1969-6-23 45829 Plumas Sierra Nevada. On Middle Fork of Feather River at Nelson Point. 1249 Comment
  CAS-BOT-BC184018  Vulpia microstachys var. microstachys John Thomas Howell 1951-6-28 27669 Plumas Jamison Creek 1584 Comment
  CAS-BOT-BC184423  Vulpia microstachys var. pauciflora John Thomas Howell 1961-6-21 36593 Plumas Greenville 1097 Comment
  CAS-BOT-BC185307  Calamagrostis koelerioides John Thomas Howell 1951-6-26 27537 Plumas Sierra Nevada. Feather River Canyon. 853 Comment
  CAS-BOT-BC185648  Bromus tectorum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-6-12 2084 Plumas Butterfly Botanical Area and Vicinity. Area near spring. 1127 Comment
  CAS-BOT-BC185649  Bromus tectorum John Thomas Howell 1977-6-20 52411 Plumas Sierra Nevada. On the peninsula of Lake Almanor. 1371 Comment
  CAS-BOT-BC185676  Vulpia myuros subsp. megalura John Thomas Howell 1960-7-20 35767 Plumas Boiling Springs Lake 1798 Comment
  CAS-BOT-BC185677  Vulpia myuros subsp. megalura John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-6-12 2007 Plumas Butterfly Botanical Area and Vicinity 1127 Comment
  CAS-BOT-BC185680  Vulpia myuros subsp. megalura John Thomas Howell 1962-6-17 37684 Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC186231  Ribes roezlii var. roezlii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54239 Plumas About 3 miles southeast of Mt. Hough on road to Quincy 1737 Comment
  CAS-BOT-BC186234  Ribes roezlii var. roezlii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54106 Plumas 10.6 miles northeast of La Porte on road to Quincy 1889 Comment
  CAS-BOT-BC186621  Danthonia californica John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54162 Plumas 3.25 miles west of Round Valley Reservoir dam 1633 Comment
  CAS-BOT-BC186624  Danthonia californica John Thomas Howell 1962-6-17 37686 Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC186698  Brassicaceae John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2375 Plumas In canyon of Butterfly Creek. Between Spanish Creek and Butterfly Valley Comment
  CAS-BOT-BC187163  Astragalus lentiginosus var. floribundus John Thomas Howell 1962-6-19 37877 Plumas Chilcoot 1524 Comment
  CAS-BOT-BC189327  Cryptantha circumscissa John Thomas Howell 1962-6-19 37851 Plumas The Buttes, N Sierra Valley 1493 Comment
  CAS-BOT-BC189591  Hackelia John Thomas Howell; Gordon H. True 1967-7-11 43344 Plumas Summit ridge of Mount Hough 2194 Comment
  CAS-BOT-BC189593  Hackelia John Thomas Howell; Gordon H. True 1967-7-11 43354 Plumas SE slope of Mount Hough 2042 Comment
  CAS-BOT-BC189659  Danthonia californica John Thomas Howell 1960-7-22 34888 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC189670  Danthonia californica John Thomas Howell 1973-7-10 49753 Plumas Sierra Nevada. Near Greenville. 1097 Comment
  CAS-BOT-BC190009  Cinna latifolia John Thomas Howell 1960-7-23 35961 Plumas Lassen Volcanic National Park. Drakesbad. Near Soda Spring. 1828 Comment
  CAS-BOT-BC190013  Cinna latifolia John Thomas Howell 1976-7-16 51919 Plumas Sierra Nevada. Just east of Bucks Summit on road to Meadow Valley. 1645 Comment
  CAS-BOT-BC190151  Crypsis vaginiflora John Thomas Howell 1959-9-21 34748 Plumas Sierra Nevada. North Fork Feather River near Belden. 701 Comment
  CAS-BOT-BC190152  Crypsis vaginiflora John Thomas Howell 1959-9-21 34814 Plumas Sierra Nevada. Indian Creek. Just below Indian Falls. 914 Comment
  CAS-BOT-BC190199  Crypsis vaginiflora John Thomas Howell 1959-9-26 35058 Plumas Sierra Nevada. Near Virgilia. 838 Comment
  CAS-BOT-BC190356  Cynosurus echinatus John Thomas Howell 1967-6-22 42656 Plumas Sierra Nevada. Canyon of the Feather River North Fork. Near mouth of Chambers Creek. 609 Comment
  CAS-BOT-BC19132  Carex aurea John Thomas Howell 1951-6-27 27616 Plumas Sierra Nevad. Jamison Creek. 1828 Comment
  CAS-BOT-BC192347  Danthonia unispicata John Thomas Howell 1951-6-27 27582 Plumas McRae Meadow 1981 Comment
  CAS-BOT-BC192350  Danthonia unispicata John Thomas Howell; Gordon H. True 1967-7-11 43296 Plumas 2.5 miles from Quincy Junction on road to Mt. Hough 1249 Comment
  CAS-BOT-BC192433  Deschampsia cespitosa subsp. cespitosa John Thomas Howell 1960-7-18 35515 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC192443  Deschampsia cespitosa subsp. cespitosa John Thomas Howell 1955-7-20 30855 Plumas Mohawk 1371 Comment
  CAS-BOT-BC192444  Deschampsia cespitosa subsp. cespitosa John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-12 2115 Plumas Butterfly Botanical Area and Vicinity 1127 Comment
  CAS-BOT-BC193533  Trisetum spicatum John Thomas Howell 1951-6-28 27725 Plumas Eureka Peak 2255 Comment
  CAS-BOT-BC19522  Carex bolanderi John Thomas Howell 1960-7-21 35866 Plumas Lassen Volcanic National Park. On trail to Little Willow Lake. 1767 Comment
  CAS-BOT-BC19524  Carex bolanderi John Thomas Howell 1962-6-17 37649 Plumas Sierra Nevada. Butterfly Valley. 1036 Comment
  CAS-BOT-BC19527  Carex bolanderi John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54370 Plumas Sierra Nevada. 0.75 mile northeast of Bucks Summit on road to Quincy. 1600 Comment
  CAS-BOT-BC19632  Carex brainerdii John Thomas Howell 1926-7-23 2097 Plumas Near Prattville. 1463 Comment
  CAS-BOT-BC19633  Carex brainerdii John Thomas Howell 1951-6-28 27726 Plumas Eureka Lake. 1889 Comment
  CAS-BOT-BC19634  Carex brainerdii John Thomas Howell 1951-6-28 27714 Plumas Eureka Peak. 2255 Comment
  CAS-BOT-BC197074  Echinochloa crus-galli John Thomas Howell 1959-9-24 34925 A Plumas Junction of Indian and Spanish creeks 914 Comment
  CAS-BOT-BC19724  Carex athrostachya John Thomas Howell 1951-6-28 27646 Plumas Sierra Nevada. Johnsville. 1584 Comment
  CAS-BOT-BC19725  Carex athrostachya John Thomas Howell 1951-6-27 27591 Plumas Sierra Nevada. McRae Meadow. 1981 Comment
  CAS-BOT-BC19726  Carex athrostachya John Thomas Howell 1959-9-22 34862 Plumas Drakesbad. 1737 Comment
  CAS-BOT-BC19727  Carex athrostachya John Thomas Howell 1960-7-23 35944 Plumas Lassen Volcanic National Park. Drakesbad. Near Soda Springs. 1828 Comment
  CAS-BOT-BC19728  Carex athrostachya John Thomas Howell 1962-6-18 37753 Plumas Sierra Nevada. Sierra Valley near Beckwourth. 1487 Comment
  CAS-BOT-BC197390  Thinopyrum intermedium subsp. barbulatum John Thomas Howell; Gordon H. True 1968-6-10 44544 Plumas Quincy 1036 Comment
  CAS-BOT-BC198151  Deschampsia danthonioides John Thomas Howell 1960-7-19 35619 Plumas Drakesbad - Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC198152  Deschampsia danthonioides John Thomas Howell 1962-6-18 37748 Plumas Sierra Valley near Beckwourth - Sierra Nevada 1487 Comment
  CAS-BOT-BC198154  Deschampsia danthonioides John Thomas Howell; Walter Knight; Irja Knight 1966-7-27 1416 Plumas Southwest of Pond Reservoir - Butterfly Botanical Area and Vicinity 1097 Comment
  CAS-BOT-BC198155  Deschampsia danthonioides John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1969-6-24 2641 Plumas Valley Proper - Butterfly Botanical Area and Vicinity 1036 Comment
  CAS-BOT-BC198733  Vulpia bromoides John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2387 Plumas Butterfly Valley, valley proper - Sierra Nevada Comment
  CAS-BOT-BC199164  Vaccinium cespitosum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2406 Plumas Butterfly Botanical Area. Southeast end of Pond reservoir Comment
  CAS-BOT-BC199690  Trisetum canescens John Thomas Howell 1960-7-22 35910 Plumas Devil's Kitchen to Drakesbad 1828 Comment
  CAS-BOT-BC199692  Trisetum canescens John Thomas Howell 1951-6-28 27658 Plumas Johnsville 1584 Comment
  CAS-BOT-BC199694  Trisetum canescens John Thomas Howell; Gordon H. True 1969-6-23 45827 Plumas On Middle Fork of Feather River at Nelson Point 1249 Comment
  CAS-BOT-BC199699  Trisetum canescens John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2155 Plumas Beargrass Glade, Butterfly Botanical Area and Vicinity 1127 Comment
  CAS-BOT-BC199702  Trisetum canescens John Thomas Howell; Gordon H. True 1969-6-23 45809 Plumas 2.6 mi. n. of Middle Fork of Feather River at Nelson Point 1310 Comment
  CAS-BOT-BC199704  Trisetum canescens John Thomas Howell 1973-7-10 49755 Plumas Near Greenville 1097 Comment
  CAS-BOT-BC199705  Trisetum canescens John Thomas Howell 1961-6-21 36630 Plumas Greenville 1097 Comment
  CAS-BOT-BC199709  Trisetum canescens John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2411 Plumas Butterfly Botanical Area. Beargrass Glade Comment
  CAS-BOT-BC200507  Triticum aestivum John Thomas Howell 1951-6-27 27563 Plumas Johnsville 1584 Comment
  CAS-BOT-BC200508  Triticum aestivum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1969-6-24 2462 Plumas Butterfly Creek Canyon 990 Comment
  CAS-BOT-BC200509  Triticum aestivum John Thomas Howell 1961-6-21 36681 Plumas Greenville 1097 Comment
  CAS-BOT-BC20082  Carex echinata John Thomas Howell 1962-6-17 37656 Plumas Sierra Nevada. Butterfly Valley. 1036 Comment
  CAS-BOT-BC200855  Astragalus webberi John Thomas Howell; H. Keith Wagnon 1980-5-27 53604 Plumas Near Crescent Mills, in southwestern end of Indian Valley 1066 Comment
  CAS-BOT-BC200949  Lotus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54372 Plumas 0.75 miles northeast of Bucks Summit on road to Quincy 1600 Comment
  CAS-BOT-BC20113  Carex feta John Thomas Howell 1973-7-10 49740 Plumas Sierra Nevada. Near Greenville. 1097 Comment
  CAS-BOT-BC201884  Deschampsia elongata John Thomas Howell 1960-7-19 35621 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC201885  Deschampsia elongata John Thomas Howell 1960-7-21 35819 Plumas Near Terminal Geyser 1828 Comment
  CAS-BOT-BC201897  Deschampsia elongata John Thomas Howell 1961-6-21 36685 Plumas Greenville 1097 Comment
  CAS-BOT-BC203100  Vitis californica John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1968-6-11 2359 Plumas Butterfly Botanical Area. At the edge of Spanish Creek at confluence of Butterfly Creek Comment
  CAS-BOT-BC203101  Vitis californica John Thomas Howell 1977-6-21 52374 Plumas Seneca 1097 Comment
  CAS-BOT-BC203102  Vitis californica John Thomas Howell 1959-9-24 34922 Plumas Indian Creek Canyon near Indian Falls Comment
  CAS-BOT-BC203835  Elymus X hansenii John Thomas Howell 1960-7-18 35597 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC204212  Elymus stebbinsii subsp. septentrionalis John Thomas Howell; Gordon H. True 1968-6-12 44561 Plumas Near Lewisia Rock in Feather River Canyon 609 Comment
  CAS-BOT-BC204404  Elymus trachycaulus subsp. trachycaulus John Thomas Howell 1967-6-23 42727 Plumas East Branch Feather River, 3.5 miles east of Rich Bar 762 Comment
  CAS-BOT-BC204407  Elymus trachycaulus subsp. trachycaulus John Thomas Howell 1961-6-21 36695 Plumas Greenville 1097 Comment
  CAS-BOT-BC204408  Elymus trachycaulus subsp. trachycaulus John Thomas Howell; Gordon H. True 1968-6-10 44549 Plumas Quincy 1036 Comment
  CAS-BOT-BC204441  Eragrostis cilianensis John Thomas Howell 1959-9-21 34723 Plumas Belden 701 Comment
  CAS-BOT-BC204595  Eragrostis mexicana subsp. virescens John Thomas Howell 1959-9-21 34807 Plumas Near Paxton 883 Comment
  CAS-BOT-BC204598  Eragrostis mexicana subsp. virescens John Thomas Howell 1955-7-19 30734 Plumas Portola 1478 Comment
  CAS-BOT-BC204599  Eragrostis mexicana subsp. virescens John Thomas Howell 1977-8-11 52669 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir 1676 Comment
  CAS-BOT-BC204860  Acmispon argophyllus var. fremontii John Thomas Howell 1951-6-29 27767 Plumas Feather River Canyon 548 Comment
  CAS-BOT-BC205067  Lathyrus sulphureus John Thomas Howell 1975-7-22 51374 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC205069  Lathyrus sulphureus John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1969-6-24 2423 Plumas Butterfly Botanical Area and Vicinity. Between mouth of Butterfly Creek and Valley proper 914 Comment
  CAS-BOT-BC205070  Lathyrus sulphureus John Thomas Howell 1961-6-21 36696 Plumas Greenville 1097 Comment
  CAS-BOT-BC205768  Sidalcea oregana John Thomas Howell 1973-7-9 49724 Plumas Round Valley 1371 Comment
  CAS-BOT-BC206504  Elymus glaucus subsp. glaucus John Thomas Howell 1951-6-27 27568 Plumas Johnsville - Sierra Nevada` 1584 Comment
  CAS-BOT-BC206508  Elymus glaucus subsp. glaucus John Thomas Howell 1977-6-20 52415 Plumas On the peninsula of Lake Almanor - Sierra Nevada 1371 Comment
  CAS-BOT-BC206509  Elymus glaucus subsp. glaucus John Thomas Howell 1977-6-20 52414 Plumas On the peninsula of Lake Almanor - Sierra Nevada 1371 Comment
  CAS-BOT-BC206513  Elymus glaucus subsp. glaucus John Thomas Howell; Walter Knight; Irja Knight 1966-7-26 1586 Plumas Fern Glen - Butterfly Botanical Area and Vicinity 1097 Comment
  CAS-BOT-BC206516  Elymus glaucus subsp. glaucus John Thomas Howell; Gordon H. True 1967-7-9 43256 Plumas North Fork of Feather River 4.3 miles southwest of Caribou - Sierra Nevada 792 Comment
  CAS-BOT-BC206517  Elymus glaucus subsp. glaucus John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-10 2213 Plumas Mouth of Butterfly Creek - Butterfly Botanical Area and Vicinity 883 Comment
  CAS-BOT-BC206519  Elymus glaucus subsp. glaucus John Thomas Howell 1962-6-17 37688 Plumas Butterfly Valley - Sierra Nevada 1036 Comment
  CAS-BOT-BC20693  Carex fracta John Thomas Howell 1960-7-19 35676 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC20694  Carex specifica John Thomas Howell 1960-7-22 35909 Plumas Lassen Volcanic National Park. Devils Kitchen to Drakesbad. 1828 Comment
  CAS-BOT-BC20697  Carex fracta John Thomas Howell 1951-6-28 27649 Plumas Sierra Nevada. Johnsville. 1584 Comment
  CAS-BOT-BC208630  Distichlis spicata John Thomas Howell 1955-7-19 30789 Plumas Vinton - Sierra Nevada 1505 Comment
  CAS-BOT-BC208791  Lupinus argenteus var. heteranthus John Thomas Howell 1962-6-17 37712 Plumas Portola - Sierra Nevada 1463 Comment
  CAS-BOT-BC209232  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell 1959-9-21 34801 Plumas 4.5 miles from Virgilia on road to Quincy - Sierra Nevada Comment
  CAS-BOT-BC210311  Cornus sericea John Thomas Howell 1961-6-21 36632 Plumas Greenville 1097 Comment
  CAS-BOT-BC210314  Cornus sericea John Thomas Howell 1961-6-21 36632 Plumas Greenville 1097 Comment
  CAS-BOT-BC210315  Cornus sericea John Thomas Howell 1955-7-20 30842 Plumas Mohawk 1371 Comment
  CAS-BOT-BC210319  Cornus sericea John Thomas Howell 1976-7-15 51858 Plumas Snake Lake, about 4 miles north-west of Quincy 1219 Comment
  CAS-BOT-BC210320  Cornus sericea John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54286 Plumas On China Grade, 1.4 miles south of Taylorsville 1402 Comment
  CAS-BOT-BC210324  Cornus sericea John Thomas Howell 1959-9-24 34937 Plumas Butterfly Creek near mouth Comment
  CAS-BOT-BC210501  Cornus sericea subsp. occidentalis John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2390 Plumas Butterfly Valley on east side Comment
  CAS-BOT-BC210688  Achnatherum lemmonii John Thomas Howell 1955-7-19 30766 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC210689  Achnatherum lemmonii John Thomas Howell 1962-6-17 37710 Plumas Portola 1463 Comment
  CAS-BOT-BC210693  Achnatherum lemmonii John Thomas Howell 1975-6-16 51152 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC210697  Achnatherum lemmonii John Thomas Howell 1951-6-29 27745 Plumas Spring Garden Creek 1158 Comment
  CAS-BOT-BC210703  Achnatherum lemmonii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54319 Plumas Near Englemine on Diamond Mt. road northeast of Taylorsville 1219 Comment
  CAS-BOT-BC210746  Achnatherum nelsonii John Thomas Howell 1962-6-18 37774 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC210814  Achnatherum nelsonii subsp. nelsonii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54174 Plumas Long Valley at road to Maxwell Mine 1633 Comment
  CAS-BOT-BC210841  Achnatherum occidentale subsp. californicum John Thomas Howell 1960-7-19 35684 A Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC210845  Achnatherum occidentale subsp. californicum John Thomas Howell 1951-6-27 27569 Plumas Johnsville 1584 Comment
  CAS-BOT-BC210849  Achnatherum occidentale subsp. californicum John Thomas Howell 1960-7-20 35787 Plumas Lassen Volcanic National Park. Between Boiling Springs Lake and Terminal Geyser 1859 Comment
  CAS-BOT-BC210925  Achnatherum occidentale subsp. pubescens John Thomas Howell; Walter Knight; Irja Knight; Gordon H. True 1968-6-11 2363 Plumas Butterfly Botanical Area. Confluence of Spanish Creek & Butterfly Creek Comment
  CAS-BOT-BC210926  Achnatherum occidentale subsp. pubescens John Thomas Howell 1967-6-23 42721 Plumas Canyon of the East Branch of Feather River 2 miles east of Twain Comment
  CAS-BOT-BC210928  Achnatherum occidentale subsp. pubescens John Thomas Howell 1962-6-19 37840 Plumas The Buttes, n. Sierra Valley 1493 Comment
  CAS-BOT-BC210929  Achnatherum occidentale subsp. pubescens John Thomas Howell 1961-6-21 36700 Plumas Greenville 1097 Comment
  CAS-BOT-BC213818  Elymus repens John Thomas Howell 1961-9-23 36826 Plumas Indian Valley - Sierra Nevada 1082 Comment
  CAS-BOT-BC213819  Elymus repens John Thomas Howell 1975-7-22 51347 Plumas Quincy Junction Road near Quincy - Sierra Nevada 1036 Comment
  CAS-BOT-BC21382  Agoseris aurantiaca var. aurantiaca John Thomas Howell 1960-7-18 35562 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC213820  Elymus repens John Thomas Howell 1959-9-25 35036 Plumas Quincy - Sierra Nevada 1036 Comment
  CAS-BOT-BC213821  Elymus repens John Thomas Howell 1976-7-15 51832 Plumas Quincy - Sierra Nevada 1051 Comment
  CAS-BOT-BC215410  Lupinus dalesiae John Thomas Howell; Gordon H. True 1967-6-12 42587 Plumas N side of American Valley near Quincy 1036 Comment
  CAS-BOT-BC215418  Lupinus dalesiae John Thomas Howell; R. C. Barneby 1954-5-14 29561 Plumas 11 miles NW of Blairsden Comment
  CAS-BOT-BC216877  Achnatherum occidentale John Thomas Howell; Gordon H. True 1967-7-11 43336 Plumas Summit ridge of mount Hough 2194 Comment
  CAS-BOT-BC216880  Achnatherum occidentale John Thomas Howell 1926-7-24 2100 Plumas Near Prattville 1463 Comment
  CAS-BOT-BC216881  Achnatherum occidentale John Thomas Howell 1960-7-19 35670 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC217985  Achnatherum nelsonii John Thomas Howell 1960-7-17 35485 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC217996  Achnatherum webberi John Thomas Howell; Gordon H. True 1973-7-31 50072 Plumas Summit ridge of Thompson Peak, Diamond Range 2362 Comment
  CAS-BOT-BC219015  Trifolium andersonii subsp. andersonii John Thomas Howell 1962-6-18 37780 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC219219  Ribes nevadense John Thomas Howell 1976-7-15 51867 Plumas Snake Lake, about 4 miles NW of Quincy 1219 Comment
  CAS-BOT-BC21971  Carex heteroneura John Thomas Howell 1960-7-20 35714 Plumas Drakesbad. 1828 Comment
  CAS-BOT-BC220481  Monardella sheltonii John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2371 Plumas In canyon of Butterfly Creek between Spanish Creek and Butterfly Valley Comment
  CAS-BOT-BC220485  Monardella sheltonii John Thomas Howell 1975-7-22 51370 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC220492  Monardella sheltonii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54303 Plumas East side of Indian Valley just north of Taylorsville 1112 Comment
  CAS-BOT-BC221249  Calystegia malacophylla subsp. malacophylla John Thomas Howell 1962-6-17 37664 Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC221879  X Stiporyzopsis John Thomas Howell 1962-6-19 37841 Plumas The Buttes, n. Sierra Valley 1493 Comment
  CAS-BOT-BC221953  Taeniatherum caput-medusae John Thomas Howell; Gordon H. True 1967-7-11 43291 Plumas 2.5 miles from Quincy Junction on road to Mt. Hough 1249 Comment
  CAS-BOT-BC221957  Taeniatherum caput-medusae John Thomas Howell; Gordon H. True 1974-7-29 50626 Plumas Quincy 1036 Comment
  CAS-BOT-BC222105  Monardella odoratissima subsp. pallida John Thomas Howell 1960-7-20 35789 Plumas Lassen Volcanic National Park. Between Boiling Springs Lake and Terminal Geyser 1859 Comment
  CAS-BOT-BC222114  Monardella odoratissima subsp. pallida John Thomas Howell 1976-7-16 51881 Plumas Spanish Creek near mouth of Slate Creek 1066 Comment
  CAS-BOT-BC222118  Monardella odoratissima subsp. pallida John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54378 Plumas 0.75 miles northeast of Bucks Summit on road to Quincy 1600 Comment
  CAS-BOT-BC222152  Monardella odoratissima subsp. pallida John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54215 Plumas About 5 miles southeast of Mt. Hough on the road to Quincy 1584 Comment
  CAS-BOT-BC22285  Carex hassei John Thomas Howell 1960-7-18 35508 Plumas Drakesbad. 1828 Comment
  CAS-BOT-BC22346  Carex filifolia var. filifolia John Thomas Howell 1962-6-18 37776 Plumas Sierra Nevada. Sierra Valley near Beckwourth. 1487 Comment
  CAS-BOT-BC224545  Cuscuta californica John Thomas Howell 1960-7-18 35606 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC227596  Elymus elymoides John Thomas Howell 1955-7-19 30780 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC227598  Elymus elymoides John Thomas Howell 1962-6-19 37883 Plumas Beckwourth Pass 1584 Comment
  CAS-BOT-BC227603  Elymus elymoides John Thomas Howell 1951-6-27 27564 Plumas Johnsville 1584 Comment
  CAS-BOT-BC227606  Elymus elymoides John Thomas Howell 1977-6-20 52413 Plumas On the peninsula of Lake Almanor 1371 Comment
  CAS-BOT-BC227723  Elymus elymoides John Thomas Howell 1955-7-19 30780 A Plumas Beckwourth 1493 Comment
  CAS-BOT-BC227730  Elymus elymoides John Thomas Howell; Gordon H. True; Wayne Dakan 1974-7-30 50636 Plumas Headwaters of Indian Creek southeast of Diamond Mt. 2164 Comment
  CAS-BOT-BC228016  Plagiobothrys John Thomas Howell 1926-7-30 2163 Plumas Prattville 1371 Comment
  CAS-BOT-BC228453  Plagiobothrys torreyi John Thomas Howell 1962-6-18 37777 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC228656  Elymus multisetus John Thomas Howell 1973-7-10 49749 Plumas Near Greenville 1097 Comment
  CAS-BOT-BC228657  Elymus multisetus John Thomas Howell 1955-7-19 30779 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC228911  Cistanthe umbellata John Thomas Howell 1960-7-18 35559 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC22913  Agoseris heterophylla John Thomas Howell; Gordon H. True 1967-7-11 43305 Plumas 2.5 miles from Quincy Junction on road to Mt. Hough 1249 Comment
  CAS-BOT-BC22914  Agoseris heterophylla John Thomas Howell 1963-6-4 39409 Plumas Marble Hot Springs, Sierra Valley Comment
  CAS-BOT-BC22921  Agoseris heterophylla John Thomas Howell 1951-6-27 27578 A Plumas Johnsville 1584 Comment
  CAS-BOT-BC22922  Agoseris heterophylla John Thomas Howell 1951-6-27 27578 B Plumas Johnsville 1584 Comment
  CAS-BOT-BC22924  Agoseris heterophylla John Thomas Howell 1951-6-27 27578 Plumas Johnsville 1584 Comment
  CAS-BOT-BC230189  Trifolium productum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54155 Plumas 3.25 miles west of Round Valley Reservoir dam. 1633 Comment
  CAS-BOT-BC230191  Trifolium productum John Thomas Howell 1951-6-28 27690 Plumas Eureka Peak 2133 Comment
  CAS-BOT-BC230193  Trifolium productum John Thomas Howell 1960-7-22 35907 Plumas Deveil's Kitchen to Drakesbad 1828 Comment
  CAS-BOT-BC230394  Navarretia leucocephala subsp. minima John Thomas Howell 1961-9-24 36921 Plumas Feather River bed SW of Beckwourth 1487 Comment
  CAS-BOT-BC230554  Nemophila parviflora var. austiniae J. T. Howell; et al. 1967-6-12 2076 Plumas Butterfly Botanical Area and Vicinity. Near spring 1127 Comment
  CAS-BOT-BC230956  Plagiobothrys hispidulus John Thomas Howell 1960-7-19 35613 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC230960  Plagiobothrys hispidulus John Thomas Howell 1962-6-19 37874 Plumas 5.8 miles E of Beckwourth 1493 Comment
  CAS-BOT-BC230961  Plagiobothrys hispidulus John Thomas Howell 1962-6-18 37746 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC230962  Plagiobothrys hispidulus John Thomas Howell 1962-6-18 37804 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC230964  Plagiobothrys hispidulus John Thomas Howell 1976-7-16 51898 Plumas Flood plain of Spanish Creek at mouth of Wapaunsie Creek 1097 Comment
  CAS-BOT-BC230965  Plagiobothrys hispidulus John Thomas Howell 1951-6-28 27676 Plumas Jamison Creek 1584 Comment
  CAS-BOT-BC230990  Plagiobothrys hispidulus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54176 Plumas Long Valley at road to Maxwell Mine 1633 Comment
  CAS-BOT-BC231076  Lithospermum John Thomas Howell 1955-7-19 30757 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC231133  Hackelia amethystina John Thomas Howell; Gordon H. True 1973-8-1 50190 Plumas Ca. 2.5 miles SE of Diamond Mountain 2164 Comment
  CAS-BOT-BC236552  Sorghum halepense John Thomas Howell 1959-9-26 35081 Plumas Storrie, Sierra Nevada 548 Comment
  CAS-BOT-BC237005  Symphoricarpos mollis John Thomas Howell 1960-7-18 35552 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC237008  Symphoricarpos mollis John Thomas Howell 1961-6-21 36626 Plumas Greenville, Sierra Nevada 1097 Comment
  CAS-BOT-BC237009  Symphoricarpos mollis John Thomas Howell; Gordon H. True 1967-7-11 43324 Plumas 3 miles southeast of Mt. Hough, Sierra Nevada 1706 Comment
  CAS-BOT-BC237010  Symphoricarpos mollis John Thomas Howell; Gordon H. True 1973-7-31 50124 Plumas Road from Janesville to Thompson Peak, Dieamond Range, Sierra Nevada 1981 Comment
  CAS-BOT-BC237461  Polypogon viridis John Thomas Howell 1959-9-26 35069 Plumas Near Soda Spring, Feather River Canyon 682 Comment
  CAS-BOT-BC238463  Scrophularia John Thomas Howell 1977-8-11 52684 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir 1676 Comment
  CAS-BOT-BC238840  Sambucus nigra subsp. caerulea John Thomas Howell 1977-6-21 52375 Plumas Seneca 1097 Comment
  CAS-BOT-BC238848  Sambucus nigra subsp. caerulea John Thomas Howell 1960-7-19 35671 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC238849  Sambucus nigra subsp. caerulea John Thomas Howell 1924-8-10 612 Plumas Crescent Mills 1219 Comment
  CAS-BOT-BC239298  Penstemon newberryi var. berryi John Thomas Howell; Gordon H. True 1967-7-11 43351 Plumas Summit ridge of Mt. Hough 2194 Comment
  CAS-BOT-BC239307  Penstemon newberryi var. berryi John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54277 Plumas Mt. Hough 2203 Comment
  CAS-BOT-BC239587  Penstemon rydbergii var. oreocharis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54177 Plumas Long Valley at road to Maxwell Mine 1633 Comment
  CAS-BOT-BC239600  Penstemon rydbergii var. oreocharis John Thomas Howell 1951-6-28 27642 Plumas Johnsville 1584 Comment
  CAS-BOT-BC239601  Penstemon rydbergii var. oreocharis John Thomas Howell 1926-7-30 2162 Plumas Near Prattville 1371 Comment
  CAS-BOT-BC240090  Secale cereale John Thomas Howell 1961-6-21 36682 Plumas Greenville 1097 Comment
  CAS-BOT-BC240091  Secale cereale John Thomas Howell; Gordon H. True 1968-6-10 44554 Plumas Quincy 1036 Comment
  CAS-BOT-BC240243  Setaria viridis John Thomas Howell 1951-6-26 27530 Plumas Tobin 609 Comment
  CAS-BOT-BC240246  Setaria viridis John Thomas Howell 1961-9-22 36806 Plumas Greenville 1088 Comment
  CAS-BOT-BC240358  Utricularia minor John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1968-6-12 2397 Plumas Butterfly Botanical Area Comment
  CAS-BOT-BC240672  Lonicera interrupta John Thomas Howell 1951-6-26 27550 Plumas Feather River Canyon 853 Comment
  CAS-BOT-BC241042  Castilleja pilosa John Thomas Howell 1962-6-18 37763 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC241043  Castilleja pilosa John Thomas Howell 1955-7-19 30810 Plumas Vinton 1508 Comment
  CAS-BOT-BC24189  Arctostaphylos John Thomas Howell 1976-7-16 51916 Plumas In area of metamorphic shaly rock just east of Bucks Summit on road to Meadow Valley. 1645 Comment
  CAS-BOT-BC24203  Arctostaphylos John Thomas Howell; Gordon H. True 1967-5-8 42196 Plumas Along Forest Service Rd. between Butterfly Valley proper and the Butterfly Botanical area Comment
  CAS-BOT-BC24204  Arctostaphylos John Thomas Howell; Gordon H. True 1967-5-8 42195 Plumas Along Forest Service Rd. between Butterfly Valley proper and the Butterfly Botanical area Comment
  CAS-BOT-BC24205  Arctostaphylos John Thomas Howell; Gordon H. True 1967-5-8 42199 Plumas Along Forest Service Rd. between Butterfly Valley proper and the Butterfly Botanical area Comment
  CAS-BOT-BC24208  Arctostaphylos John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54266 Plumas Rocky summit ridge, Mt. Hough 2203 Comment
  CAS-BOT-BC242967  Poa secunda subsp. secunda John Thomas Howell 1951-6-27 27637 Plumas Jamison Creek 1828 Comment
  CAS-BOT-BC242985  Poa secunda subsp. secunda John Thomas Howell 1975-6-16 51151 Plumas 2 miles NW of Spring Garden 1173 Comment
  CAS-BOT-BC242986  Poa secunda subsp. secunda John Thomas Howell 1961-6-21 36644 Plumas Greenville 1097 Comment
  CAS-BOT-BC242988  Poa secunda subsp. secunda John Thomas Howell; et al. 1967-7-10 2178 Plumas Butterfly Botanical Area and Vicinity. Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC244048  Eriogonum baileyi var. praebens John Thomas Howell 1955-7-19 30806 Plumas Vinton, Sierra Nevada 1511 Comment
  CAS-BOT-BC244141  Poa sierrae John Thomas Howell 1967-6-23 42740 Plumas Lewisia Rock, 3.5 miles SW of Belden, Feather River Canyon 609 Comment
  CAS-BOT-BC244143  Poa sierrae John Thomas Howell; Gordon H. True 1969-4-8 45483 Plumas Lewisia Rock, 3.5 miles SW of Belden, Feather River Canyon 609 Comment
  CAS-BOT-BC244148  Poa sierrae John Thomas Howell; Gordon H. True 1969-6-23 45801 Plumas Lewisia Rock, Feather River Canyon 609 Comment
  CAS-BOT-BC244165  Poa trivialis John Thomas Howell 1967-6-23 42681 Plumas Canyon of Butterfly Creek 914 Comment
  CAS-BOT-BC244167  Poa trivialis John Thomas Howell; Gordon H. True 1968-6-10 44557 Plumas Quincy 1036 Comment
  CAS-BOT-BC246166  Keckiella lemmonii John Thomas Howell 1976-7-16 51915 Plumas Just east of Bucks Summit on road to Meadow Valley, Sierra Nevada 1645 Comment
  CAS-BOT-BC246167  Keckiella lemmonii John Thomas Howell 1951-8-19 28174 Plumas Near Paxton, Sierra Nevada 914 Comment
  CAS-BOT-BC246536  Eriogonum elatum var. elatum John Thomas Howell; Gordon H. True 1973-7-31 50118 Plumas Summit ridge of Thompson Peak, Diamond Range 2133 Comment
  CAS-BOT-BC246853  Poa nemoralis John Thomas Howell 1977-6-21 52386 Plumas Seneca 1097 Comment
  CAS-BOT-BC247080  Poa secunda subsp. juncifolia John Thomas Howell 1962-6-18 37756 Plumas Sierra Valley near Beckwourth 1490 Comment
  CAS-BOT-BC247081  Poa secunda subsp. juncifolia John Thomas Howell 1955-7-19 30800 Plumas Vinton 1505 Comment
  CAS-BOT-BC247271  Poa palustris John Thomas Howell; Gordon H. True 1969-6-23 45830 Plumas On Middle Fork of Feather River at Nelson Point 1249 Comment
  CAS-BOT-BC247273  Poa palustris John Thomas Howell 1961-9-23 36852 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC247278  Poa palustris John Thomas Howell 1951-6-28 27648 Plumas Johnsville 1584 Comment
  CAS-BOT-BC247385  Poa pratensis John Thomas Howell 1951-6-28 27667 Plumas Jamison Creek 1584 Comment
  CAS-BOT-BC247388  Poa pratensis John Thomas Howell 1961-6-21 36678 Plumas Greenville 1097 Comment
  CAS-BOT-BC248772  Eriogonum baileyi var. baileyi John Thomas Howell 1959-9-25 35028 Plumas Summit of Beckwourth Pass 1588 Comment
  CAS-BOT-BC248774  Eriogonum baileyi var. baileyi John Thomas Howell 1959-9-25 35027 Plumas Summit of Beckwourth Pass 1588 Comment
  CAS-BOT-BC249368  Castilleja applegatei John Thomas Howell; Gordon H. True 1969-6-23 45805 Plumas 2.6 mi. n. of Middle Fork of Feather River at Nelson Point 1310 Comment
  CAS-BOT-BC249745  Castilleja applegatei subsp. pinetorum John Thomas Howell 1961-6-21 36639 Plumas Greenville 1097 Comment
  CAS-BOT-BC249746  Castilleja applegatei subsp. pinetorum John Thomas Howell 1961-6-21 36640 Plumas Greenville 1097 Comment
  CAS-BOT-BC249747  Castilleja applegatei subsp. pinetorum John Thomas Howell 1951-6-28 27715 Plumas Eureka Peak 2255 Comment
  CAS-BOT-BC249750  Castilleja applegatei subsp. pinetorum John Thomas Howell 1926-7-24 2101 Plumas Near Prattville 1463 Comment
  CAS-BOT-BC253532  Phleum John Thomas Howell; H. Keith Wagnon 1980-5-28 53687 Plumas Indian Falls, Sierra Nevada 975 Comment
  CAS-BOT-BC253735  Panicum capillare John Thomas Howell; Gordon H. True 1967-7-9 43270 Plumas At Quincy 1036 Comment
  CAS-BOT-BC253738  Panicum capillare John Thomas Howell 1960-7-20 35728 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC253739  Panicum capillare John Thomas Howell 1951-8-20 28214 Plumas Genesee 1127 Comment
  CAS-BOT-BC253740  Panicum capillare John Thomas Howell 1966-7-29 42013 Plumas Quincy 1036 Comment
  CAS-BOT-BC253741  Panicum capillare John Thomas Howell 1976-7-15 51831 Plumas Quincy 1051 Comment
  CAS-BOT-BC253742  Panicum capillare John Thomas Howell 1959-9-26 35052 Plumas Near Keddie 1005 Comment
  CAS-BOT-BC253743  Panicum capillare John Thomas Howell 1959-9-25 34991 Plumas Feather River, Portola 1478 Comment
  CAS-BOT-BC253744  Panicum capillare John Thomas Howell 1959-9-21 34747 Plumas N Fork Feather River near Belden 701 Comment
  CAS-BOT-BC253745  Panicum capillare John Thomas Howell 1926-7-30 2167 Plumas Near Prattville Comment
  CAS-BOT-BC253748  Panicum capillare John Thomas Howell; et al. 1967-7-10 2191 Plumas Butterfly Botanical Area and Vicinity. Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC254056  Castilleja miniata John Thomas Howell; Gordon H. True 1967-7-11 43276 Plumas 2 miles from Quincy Junction on road to Mt. Hough. Plants of the Sierra Nevada, California 1219 Comment
  CAS-BOT-BC254063  Castilleja miniata John Thomas Howell 1960-7-22 35871 Plumas Stream bank, Drakesbad. Plants of Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC25411  Boechera retrofracta John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1969-6-24 2437 Plumas Butterfly Botanical Area and Vicinity. From vicinity of Butterfly Creek mouth. 883 Comment
  CAS-BOT-BC254390  Piptatherum miliaceum John Thomas Howell 1976-7-14 51820 Plumas Feather River Canyon Highway at Injun Jim Campground 609 Comment
  CAS-BOT-BC254475  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell 1976-7-15 51847 Plumas Snake Lake, about 4 miles NW of Quincy 1219 Comment
  CAS-BOT-BC254610  Poa X limosa John Thomas Howell 1967-6-23 42672 Plumas Canyon of Butterfly Creek 975 Comment
  CAS-BOT-BC254766  Poa bolanderi John Thomas Howell 1960-7-19 35633 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC254767  Poa bolanderi John Thomas Howell 1960-7-22 35919 Plumas Devil's Kitchen to Drakesbad 1828 Comment
  CAS-BOT-BC255097  Poa compressa John Thomas Howell 1951-6-27 27577 Plumas Johnsville 1584 Comment
  CAS-BOT-BC255103  Poa compressa John Thomas Howell 1959-9-24 34899 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC25589  Boechera retrofracta John Thomas Howell; Gordon H. True 1969-6-23 45834 Plumas Sierra Nevada. Nelson Point. 1249 Comment
  CAS-BOT-BC25590  Boechera retrofracta John Thomas Howell; Gordon H. True 1969-6-23 45834 Plumas Sierra Nevada. On Middle Fork of Feather River at Nelson Point. 1249 Comment
  CAS-BOT-BC25880  Boechera subpinnatifida John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1969-6-24 2440 Plumas Butterfly Botanical Area and Vicinity. From vicinity of mouth of Butterfly Creek. 883 Comment
  CAS-BOT-BC25906  Boechera suffrutescens John Thomas Howell; Gordon H. True 1967-7-11 43348 Plumas Sierra Nevada. Summit ridge of Mount Hough. 2194 Comment
  CAS-BOT-BC25907  Boechera suffrutescens John Thomas Howell 1951-6-27 27628 Plumas Sierra Nevada. Jamison Creek. 1828 Comment
  CAS-BOT-BC25909  Boechera suffrutescens John Thomas Howell; Gordon H. True 1973-7-31 50117 Plumas Sierra Nevada. Diamond Range. Summit ridge of Thompson Peak. 2194 Comment
  CAS-BOT-BC25928  Boechera suffrutescens John Thomas Howell 1951-6-28 27713 Plumas Eureka Peak. 2255 Comment
  CAS-BOT-BC259634  Paspalum dilatatum John Thomas Howell 1959-9-21 34798 Plumas Virgilia 841 Comment
  CAS-BOT-BC259635  Paspalum dilatatum John Thomas Howell 1951-6-29 27756 Plumas Feather RIver Canyon 548 Comment
  CAS-BOT-BC260433  Achnatherum hymenoides John Thomas Howell 1962-6-19 37839 Plumas The Buttes, N Sierra Valley 1493 Comment
  CAS-BOT-BC260843  Phleum pratense John Thomas Howell; Walter Knight; Irja Knight; Gordon H. True 1967-7-10 2177 Plumas Mouth of Butterfly Creek, Butterfly Botanical Area and Vicinity 883 Comment
  CAS-BOT-BC260846  Phleum pratense John Thomas Howell 1960-7-18 35509 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC260847  Phleum pratense John Thomas Howell 1961-9-23 36817 A Plumas Greenville, Sierra Nevada Comment
  CAS-BOT-BC260848  Phleum pratense John Thomas Howell 1959-9-21 34725 Plumas Belden, Sierra Nevada 701 Comment
  CAS-BOT-BC261021  Poa John Thomas Howell 1959-9-21 34723 A Plumas Belden, Sierra Nevada 701 Comment
  CAS-BOT-BC261590  Eriogonum nudum var. nudum John Thomas Howell 1961-9-23 36889 Plumas Englemine 1097 Comment
  CAS-BOT-BC261592  Eriogonum nudum var. nudum John Thomas Howell; Gordon H. True 1973-7-31 50077 Plumas Summit ridge of Thompson Peak, Diamond Range 2362 Comment
  CAS-BOT-BC261601  Eriogonum nudum var. nudum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54130 Plumas At Round Valley Reservoir dam 1371 Comment
  CAS-BOT-BC262069  Eriogonum umbellatum var. nevadense John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54276 Plumas Mt. Hough 2203 Comment
  CAS-BOT-BC262076  Eriogonum umbellatum var. nevadense John Thomas Howell; Gordon H. True 1973-7-31 50112 Plumas Summit ridge of Thompson Peak, Diamond Range 2194 Comment
  CAS-BOT-BC262243  Eriogonum ursinum John Thomas Howell 1951-6-29 27747 Plumas Spring Garden Creek 1158 Comment
  CAS-BOT-BC262265  Eriogonum ursinum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2204 Plumas Butterfly Botanical Area and vicinity. Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC262271  Eriogonum ursinum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54151 Plumas 2.65 miles west of Round Valley Reservoir dam 1569 Comment
  CAS-BOT-BC262610  Muhlenbergia andina John Thomas Howell 1960-7-19 35655 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC263298  Eriogonum marifolium var. marifolium John Thomas Howell 1951-6-28 27693 Plumas Eureka Peak 2133 Comment
  CAS-BOT-BC263301  Eriogonum marifolium var. marifolium John Thomas Howell; Gordon H. True 1973-7-31 50074 Plumas Summit ridge of Thompson Peak, Diamond Range 2362 Comment
  CAS-BOT-BC263303  Eriogonum marifolium var. marifolium John Thomas Howell; Gordon H. True 1967-7-11 43342 Plumas Summit ridge of Mt. Hough 2194 Comment
  CAS-BOT-BC263307  Eriogonum marifolium var. marifolium John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54270 Plumas Mt. Hough 2203 Comment
  CAS-BOT-BC263364  Muhlenbergia asperifolia John Thomas Howell 1959-9-21 34760 Plumas Sand bars of N. Fk. Feather River near Belden, Sierra Nevada 701 Comment
  CAS-BOT-BC263844  Viola John Thomas Howell 1967-6-23 42705 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC263847  Viola John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2122 Plumas Butterfly Botanical Area and Vicinity. At spring 1127 Comment
  CAS-BOT-BC264014  Viola adunca John Thomas Howell 1951-6-27 27585 Plumas McRae Meadow 1981 Comment
  CAS-BOT-BC264015  Viola adunca John Thomas Howell 1960-7-18 35573 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC264126  Eriogonum vimineum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2184 Plumas Mouth of Butterfly, Butterfly Botanical Area and vicinity 883 Comment
  CAS-BOT-BC264127  Eriogonum vimineum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2184 Plumas Mouth of Butterfly, Butterfly Botanical Area and vicinity 883 Comment
  CAS-BOT-BC264130  Eriogonum vimineum John Thomas Howell 1955-7-19 30807 Plumas Vinton, Sierra Nevada 1508 Comment
  CAS-BOT-BC264132  Eriogonum vimineum John Thomas Howell 1959-9-21 34740 Plumas Belden, Sierra Nevada 701 Comment
  CAS-BOT-BC264176  Melica subulata John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54332 Plumas 2.8 miles north-northeast of Englemine on Diamond Mt. Road, Sierra Nevada 1341 Comment
  CAS-BOT-BC264177  Melica subulata John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54163 Plumas 3.25 miles west of Round Valley Reservoir Dam, Sierra Nevada 1633 Comment
  CAS-BOT-BC264180  Melica subulata John Thomas Howell 1960-7-22 35903 Plumas Devil's Kitchen to Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC264181  Melica subulata John Thomas Howell 1962-6-17 37682 Plumas Butterfly Valley, Sierra Nevada 1036 Comment
  CAS-BOT-BC264182  Melica subulata John Thomas Howell 1967-6-23 42680 Plumas Canyon of Butterfly Creek, Sierra Nevada 975 Comment
  CAS-BOT-BC264816  Eriogonum nudum var. deductum John Thomas Howell 1973-7-9 49720 Plumas Round Valley, Sierra Nevada 1371 Comment
  CAS-BOT-BC264817  Eriogonum nudum var. deductum John Thomas Howell 1955-7-20 30853 Plumas Mohawk, Sierra Nevada 1371 Comment
  CAS-BOT-BC264818  Eriogonum nudum var. deductum John Thomas Howell 1951-6-28 27654 Plumas Johnsville, Sierra Nevada 1584 Comment
  CAS-BOT-BC265830  Phalaris arundinacea John Thomas Howell; Gordon H. True 1967-7-9 43243 Plumas North Fork of Feather River at Belden, Sierra Nevada 685 Comment
  CAS-BOT-BC265831  Phalaris arundinacea John Thomas Howell 1973-7-9 49713 Plumas Crescent Mills, Sierra Nevada 1066 Comment
  CAS-BOT-BC265832  Phalaris arundinacea John Thomas Howell 1961-9-23 36827 Plumas Indian Valley, Sierra Nevada 1082 Comment
  CAS-BOT-BC267003  Muhlenbergia filiformis John Thomas Howell 1959-9-21 34819 Plumas Indian Creek 914 Comment
  CAS-BOT-BC267006  Muhlenbergia filiformis John Thomas Howell 1959-9-22 34869 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC267058  Alisma John Thomas Howell 1961-9-25 36941 Plumas Feather River bed, Portola 1478 Comment
  CAS-BOT-BC267330  Eriogonum luteolum var. pedunculatum John Thomas Howell 1951-6-29 27763 Plumas Feather River Canyon 548 Comment
  CAS-BOT-BC267333  Eriogonum luteolum var. pedunculatum John Thomas Howell 1974-9-20 50897 Plumas About 2 miles from Spring Garden on road to Quincy, Sierra Nevada 1158 Comment
  CAS-BOT-BC267378  Eriogonum marifolium var. marifolium John Thomas Howell 1960-7-20 35786 Plumas Lassen Volcanic National Park. Between Boiling Springs Lake and Terminal Geyser 1859 Comment
  CAS-BOT-BC267503  Eriogonum umbellatum John Thomas Howell 1959-9-25 35032 Plumas 1.5 mi. se. of Cromberg 1280 Comment
  CAS-BOT-BC269066  Lolium perenne John Thomas Howell 1960-7-18 35567 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC269222  Melica aristata John Thomas Howell 1960-7-22 35902 Plumas Lassen Volcanic National Park. Devil's Kitchen to Drakesbad 1828 Comment
  CAS-BOT-BC269223  Melica aristata John Thomas Howell 1960-7-17 35486 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC269226  Melica aristata John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54379 Plumas 0.75 miles northeast of Bucks Summit on road to Quincy 1600 Comment
  CAS-BOT-BC269723  Eriogonum nudum var. oblongifolium John Thomas Howell 1951-6-26 27542 Plumas Feather River Canyon 853 Comment
  CAS-BOT-BC269727  Eriogonum nudum var. oblongifolium John Thomas Howell 1973-7-9 49721 Plumas Round Valley 1371 Comment
  CAS-BOT-BC269732  Eriogonum nudum var. oblongifolium John Thomas Howell 1961-9-23 36888 Plumas Englemine 1097 Comment
  CAS-BOT-BC269733  Eriogonum nudum var. oblongifolium John Thomas Howell 1962-6-17 37670 Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC269957  Eriogonum spergulinum var. reddingianum John Thomas Howell 1960-7-18 35577 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC271099  Melica bulbosa John Thomas Howell; Gordon H. True 1973-7-31 50102 Plumas Summit ridge of Thompson Peak, Diamond Range, Sierra Nevada 2194 Comment
  CAS-BOT-BC271199  Melica John Thomas Howell; H. Keith Wagnon 1980-5-27 53636 Plumas About 2 miles northwest of Almanor, Sierra Nevada 1389 Comment
  CAS-BOT-BC271531  Calycadenia truncata subsp. truncata John Thomas Howell 1951-8-20 28221 Plumas Indian Valley, Sierra Nevada 1097 Comment
  CAS-BOT-BC271694  Symphoricarpos albus var. laevigatus John Thomas Howell; Gordon H. True 1969-6-23 45839 Plumas 4.7 miles north of Nelson Point on road to Quincy 1188 Comment
  CAS-BOT-BC271695  Symphoricarpos albus var. laevigatus John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1968-6-11 2370 Plumas In canyon of Butterfly Creek between Spanish Creek and Butterfly Valley, Sierra Nevada Comment
  CAS-BOT-BC271696  Symphoricarpos albus var. laevigatus John Thomas Howell 1924-8-10 606 Plumas Near Greenville 1310 Comment
  CAS-BOT-BC271698  Symphoricarpos albus var. laevigatus John Thomas Howell 1961-6-21 36626 A Plumas Greenville 1097 Comment
  CAS-BOT-BC271699  Symphoricarpos albus var. laevigatus John Thomas Howell 1959-9-24 34895 Plumas Greenville 1097 Comment
  CAS-BOT-BC271801  Melica bulbosa John Thomas Howell; Gordon H. True; G. D. Barbe 1981-6-24 54269 Plumas Mt. Hough, Sierra Nevada 2203 Comment
  CAS-BOT-BC272084  Centaurea cyanus John Thomas Howell 1959-9-24 34978 Plumas Sierra Valley near Beckworth, Sierra Nevada 1493 Comment
  CAS-BOT-BC273493  Hordeum vulgare John Thomas Howell; Gordon H. True 1968-6-10 44553 Plumas Quincy 1036 Comment
  CAS-BOT-BC273494  Hordeum vulgare John Thomas Howell 1961-6-21 36680 Plumas Greenville 1097 Comment
  CAS-BOT-BC274337  Leersia oryzoides John Thomas Howell 1959-9-21 34762 Plumas Bars of N. Fork Feather River near Belden 701 Comment
  CAS-BOT-BC274530  Leymus triticoides John Thomas Howell 1959-9-25 35014 Plumas 5 miles east of Beckwourth, Sierra Valley 1493 Comment
  CAS-BOT-BC274531  Leymus triticoides John Thomas Howell 1961-6-21 36625 Plumas Greenville Comment
  CAS-BOT-BC274532  Leymus triticoides John Thomas Howell 1955-7-19 30802 Plumas Vinton 1505 Comment
  CAS-BOT-BC275034  Muhlenbergia richardsonis John Thomas Howell 1955-7-20 30870 Plumas Mohawk 1371 Comment
  CAS-BOT-BC275035  Muhlenbergia richardsonis John Thomas Howell 1961-9-24 36923 Plumas New Feather River SW of Beckwourth 1487 Comment
  CAS-BOT-BC276721  Chaenactis douglasii var. douglasii John Thomas Howell 1926-7-26 2118 Plumas Near Prattville 1524 Comment
  CAS-BOT-BC276722  Chaenactis douglasii var. douglasii John Thomas Howell 1951-6-28 27712 Plumas Eureka Peak 2255 Comment
  CAS-BOT-BC276724  Chaenactis douglasii var. douglasii John Thomas Howell 1975-6-16 51149 Plumas 2 miles NW of Spring Garden 1173 Comment
  CAS-BOT-BC276725  Chaenactis douglasii var. douglasii John Thomas Howell 1960-8-20 36285 Plumas Kelly Camp, near Drakesbad 1615 Comment
  CAS-BOT-BC276727  Chaenactis douglasii var. douglasii John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-10 2174 Plumas Butterfly Botanical Area and Vicinity, mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC276733  Chaenactis douglasii var. douglasii John Thomas Howell 1951-6-29 27749 Plumas Spring Garden Creek 1158 Comment
  CAS-BOT-BC277045  Centaurea maculosa John Thomas Howell 1959-9-24 34923 Plumas Indian Creek Canyon near Indian Falls Comment
  CAS-BOT-BC277217  Centaurea solstitialis John Thomas Howell 1959-9-24 34906 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC278025  Cirsium cymosum John Thomas Howell 1962-6-17 37713 Plumas Portola 1463 Comment
  CAS-BOT-BC278028  Cirsium cymosum John Thomas Howell 1962-6-19 37847 Plumas The Buttes, n. Sierra Valley 1493 Comment
  CAS-BOT-BC278089  Cirsium douglasii var. breweri John Thomas Howell 1959-9-22 34860 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC278099  Cirsium douglasii var. breweri John Thomas Howell 1960-7-24 35988 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC278100  Cirsium douglasii var. breweri John Thomas Howell 1960-7-18 35611 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC278466  Festuca idahoensis John Thomas Howell 1962-6-18 37758 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC278467  Festuca idahoensis John Thomas Howell; Gordon H. True 1973-7-31 50101 Plumas Summit ridge of Thompson Peak, Diamond Range 2194 Comment
  CAS-BOT-BC278632  Festuca subulata John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54381 Plumas 0.75 miles northeast of Bucks Summit on road to Quincy 1600 Comment
  CAS-BOT-BC278635  Festuca subulata John Thomas Howell 1960-7-19 35641 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC278845  Festuca occidentalis John Thomas Howell; Gordon H. True 1969-6-23 45810 Plumas 2.6 mi. n. of Middle Fork of Feather River at Nelson Point 1310 Comment
  CAS-BOT-BC278847  Festuca occidentalis John Thomas Howell 1961-6-21 36611 Plumas Greenville 1097 Comment
  CAS-BOT-BC278848  Festuca occidentalis John Thomas Howell 1973-7-10 49750 Plumas Near Greenville 1097 Comment
  CAS-BOT-BC278850  Festuca occidentalis John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2168 Plumas Butterfly Botanical Area and Vicinity. Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC278853  Festuca occidentalis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54132 Plumas At Round Valley Reservoir dam 1371 Comment
  CAS-BOT-BC279018  Festuca rubra John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54121 Plumas Quincy 1036 Comment
  CAS-BOT-BC279021  Festuca rubra John Thomas Howell; Gordon H. True 1969-6-23 45800 Plumas Lewisia Rock, Feather River Canyon 609 Comment
  CAS-BOT-BC279022  Festuca rubra John Thomas Howell; Gordon H. True 1969-6-23 45841 Plumas Quincy 1036 Comment
  CAS-BOT-BC279024  Festuca rubra John Thomas Howell 1951-6-28 27681 Plumas Jamison Creek 1584 Comment
  CAS-BOT-BC279025  Festuca rubra John Thomas Howell 1967-6-23 42739 Plumas Lewisia Rock 3.5 miles sw. of Belden, Feather River Canyon 609 Comment
  CAS-BOT-BC279026  Festuca rubra John Thomas Howell 1960-7-18 35551 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC279838  Cichorium intybus John Thomas Howell 1959-9-24 34910 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC279951  Cirsium douglasii var. breweri John Thomas Howell 1960-7-24 35986 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC279952  Cirsium douglasii var. breweri John Thomas Howell 1960-7-24 35986 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC279954  Cirsium douglasii var. breweri John Thomas Howell 1960-7-24 35989 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC279955  Cirsium douglasii var. breweri John Thomas Howell 1960-7-24 35984 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC279956  Cirsium douglasii var. breweri John Thomas Howell 1960-7-24 35977 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC279959  Cirsium douglasii var. breweri John Thomas Howell 1960-7-24 35976 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC279960  Cirsium douglasii var. breweri John Thomas Howell 1960-7-24 35980 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC279961  Cirsium douglasii var. breweri John Thomas Howell 1960-7-24 35979 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC280683  Hesperostipa comata John Thomas Howell 1962-6-19 37842 Plumas The Buttes, n. Sierra Valley 1493 Comment
  CAS-BOT-BC281134  Melica stricta John Thomas Howell; Gordon H. True 1973-7-31 50100 Plumas Summit ridge of Thompson Peak, Diamond Range 2194 Comment
  CAS-BOT-BC28125  Carex hoodii John Thomas Howell 1951-6-27 27565 Plumas Johnsville 1584 Comment
  CAS-BOT-BC281268  Melica geyeri John Thomas Howell; Gordon H. True; Walter & Irja Knight 1969-6-24 2431 Plumas Butterfly Botanical Area and Vicinity. Collected in vicinity of Butterfly Creek mouth 883 Comment
  CAS-BOT-BC281269  Melica geyeri John Thomas Howell; Gordon H. True; Walter & Irja Knight 1968-6-11 2416 Plumas Butterfly Botanical Area. Near Fern Glen 1066 Comment
  CAS-BOT-BC281295  Melica harfordii John Thomas Howell 1967-6-23 42737 Plumas Lewisia Rock 3.5 miles SW of Belden, Feather RIver Canyon 609 Comment
  CAS-BOT-BC282079  Melica fugax John Thomas Howell 1951-6-27 27607 Plumas Jamison Creek 1950 Comment
  CAS-BOT-BC282080  Melica fugax John Thomas Howell 1975-6-16 51153 Plumas 2 miles NW of Spring Garden 1173 Comment
  CAS-BOT-BC282083  Melica fugax John Thomas Howell; Gordon H. True 1967-7-11 43292 Plumas 2.5 miles from Quincy Junction on road to Mt Hough 1249 Comment
  CAS-BOT-BC282084  Melica fugax John Thomas Howell; Gordon H. True 1967-7-11 43338 Plumas Summit ridge of Mount Hough 2194 Comment
  CAS-BOT-BC282086  Melica fugax John Thomas Howell; et al. 1967-6-12 1993 Plumas Butterfly Botanical Botanical Area and Vicinity. Valley proper, near barn 1082 Comment
  CAS-BOT-BC282087  Melica fugax John Thomas Howell; et al. 1968-6-11 2362 Plumas Butterfly Botanical Botanical Area and Vicinity. At confluence of Spanish Creek and Butterfly Creek Comment
  CAS-BOT-BC282101  Melica fugax John Thomas Howell 1960-7-22 35905 Plumas Lassen Volcanic National Park. Devil's Kitchen to Drakesbad 1828 Comment
  CAS-BOT-BC282102  Melica fugax John Thomas Howell 1975-6-16 51154 Plumas 2 miles NW of Spring Garden 1173 Comment
  CAS-BOT-BC28214  Bolboschoenus fluviatilis John Thomas Howell 1961-9-25 36942 Plumas Feather River bed, Portola. 1478 Comment
  CAS-BOT-BC282569  Festuca viridula John Thomas Howell 1951-6-28 27702 Plumas Eureka Peak 2255 Comment
  CAS-BOT-BC282702  Glyceria elata John Thomas Howell; Walter Knight; Irja Knight 1968-6-11 2381 Plumas Butterfly Valley, Sierra Nevada Comment
  CAS-BOT-BC282703  Glyceria elata John Thomas Howell; Walter Knight; Irja Knight 1966-7-28 1501 Plumas Along road at Fern Glen, Butterfly Botanical Area and Vicinity 1097 Comment
  CAS-BOT-BC282706  Glyceria elata John Thomas Howell 1951-6-28 27647 Plumas Johnsville, Sierra Nevada 1584 Comment
  CAS-BOT-BC282707  Glyceria elata John Thomas Howell 1955-7-19 30827 Plumas Mohawk, Sierra Nevada 1371 Comment
  CAS-BOT-BC282711  Glyceria elata John Thomas Howell 1960-7-20 35721 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC28305  Carex scopulorum var. bracteosa John Thomas Howell 1976-7-15 s.n. Plumas Snake Lake, ca 4 mi NW of Quincy. 1219 Comment
  CAS-BOT-BC283629  Schedonorus pratensis John Thomas Howell 1951-8-20 28213 Plumas Genesee 1127 Comment
  CAS-BOT-BC283631  Schedonorus pratensis John Thomas Howell; Gordon H. True 1967-6-11 42583 Plumas Meadow at Quincy 1036 Comment
  CAS-BOT-BC283632  Schedonorus pratensis John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-10 2168 Plumas Butterfly Botanical Area and Vicinity. Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC283804  Leymus cinereus John Thomas Howell 1951-8-21 28237 Plumas Near Clio Comment
  CAS-BOT-BC283805  Leymus cinereus John Thomas Howell 1955-7-19 30796 Plumas Vinton 1505 Comment
  CAS-BOT-BC283806  Leymus cinereus John Thomas Howell 1955-7-19 30795 Plumas Vinton 1505 Comment
  CAS-BOT-BC283809  Leymus cinereus John Thomas Howell 1959-9-24 34898 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC283877  Glyceria borealis John Thomas Howell; Gordon H. True 1974-7-29 50618 Plumas Quincy 1036 Comment
  CAS-BOT-BC283878  Glyceria borealis John Thomas Howell 1973-7-9 49725 Plumas At outlet of Round Valley Reservoir 1371 Comment
  CAS-BOT-BC283880  Glyceria borealis John Thomas Howell 1976-7-15 51843 Plumas Snake Lake, about 4 miles NW of Quincy 1219 Comment
  CAS-BOT-BC284070  Eragrostis pectinacea var. pectinacea John Thomas Howell 1961-9-22 36810 Plumas Greenville, Sierra Nevada 1088 Comment
  CAS-BOT-BC284417  Cirsium arvense John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-10 2188 Plumas Mouth of Butterfly Creek, Butterfly Botanical Area and vicinity 883 Comment
  CAS-BOT-BC284418  Cirsium arvense John Thomas Howell 1966-7-29 42026 Plumas Quincy, Sierra Nevada 1036 Comment
  CAS-BOT-BC284648  Hordeum brachyantherum subsp. brachyantherum John Thomas Howell 1951-6-27 27571 Plumas Johnsville 1584 Comment
  CAS-BOT-BC284652  Hordeum brachyantherum subsp. brachyantherum John Thomas Howell 1962-6-17 37733 Plumas Portola 1463 Comment
  CAS-BOT-BC284728  Hordeum jubatum John Thomas Howell 1977-8-11 52697 Plumas At north end of Frenchmans Reservoir 1706 Comment
  CAS-BOT-BC284729  Hordeum jubatum John Thomas Howell 1961-9-25 36935 Plumas Feather River bed, Portola 1478 Comment
  CAS-BOT-BC28510  Carex lenticularis var. lipocarpa John Thomas Howell 1951-6-28 27733 Plumas Eureka Lake 1889 Comment
  CAS-BOT-BC285104  Hordeum marinum subsp. gussoneanum John Thomas Howell 1963-6-4 39408 Plumas Marble Hot Springs, Sierra Valley Comment
  CAS-BOT-BC285105  Hordeum marinum subsp. gussoneanum John Thomas Howell 1955-7-19 30784 Plumas Vinton 1505 Comment
  CAS-BOT-BC285107  Hordeum marinum subsp. gussoneanum John Thomas Howell 1967-6-23 42691 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC285546  Cirsium occidentale var. candidissimum John Thomas Howell 1951-6-29 27750 Plumas Feather River Canyon 548 Comment
  CAS-BOT-BC285831  Cirsium vulgare John Thomas Howell 1959-9-24 34930 Plumas Butterfly Creek near mouth 883 Comment
  CAS-BOT-BC285837  Cirsium vulgare John Thomas Howell 1960-7-20 35711 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC285838  Cirsium vulgare John Thomas Howell 1959-9-22 34859 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC286447  Cirsium scariosum John Thomas Howell 1955-7-19 30825 Plumas Mohawk 1371 Comment
  CAS-BOT-BC286451  Cirsium scariosum John Thomas Howell 1960-7-24 35985 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC286452  Cirsium scariosum John Thomas Howell 1960-7-24 35983 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC286646  Ericameria bloomeri John Thomas Howell; Gordon H. True 1973-7-31 50076 Plumas Summit ridge of Thompson Peak. Diamond Range 2362 Comment
  CAS-BOT-BC286647  Ericameria bloomeri John Thomas Howell; Gordon H. True 1959-9-24 34956 Plumas Near Cromberg 1249 Comment
  CAS-BOT-BC286660  Ericameria bloomeri John Thomas Howell 1960-7-20 35781 Plumas Lassen Volcanic National Park. Between Boiling Springs Lake and Terminal Geyser 1859 Comment
  CAS-BOT-BC286665  Ericameria bloomeri John Thomas Howell 1926-7-29 2150 Plumas On Chester-Westwood road 1/2 miles west of Lassen Co. line Comment
  CAS-BOT-BC28739  Achillea millefolium John Thomas Howell 1960-7-18 35576 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC289439  Hordeum murinum subsp. leporinum John Thomas Howell 1975-7-22 51342 Plumas Quincy, Sierra Nevada 1036 Comment
  CAS-BOT-BC289617  Cirsium andersonii John Thomas Howell; Gordon H. True 1973-7-31 50129 Plumas On road from Janesville to Thompson Peak, Diamond Range, Sierra Nevada 1981 Comment
  CAS-BOT-BC289618  Cirsium andersonii John Thomas Howell 1960-7-20 35743 Plumas Boiling Springs Lake, Lassen Volcanic National Park 1798 Comment
  CAS-BOT-BC289619  Cirsium andersonii John Thomas Howell 1959-9-23 34878 Plumas Lassen Park boundary on Juniper Lake Road 1981 Comment
  CAS-BOT-BC289620  Cirsium andersonii John Thomas Howell 1960-7-19 35684 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC289621  Cirsium andersonii John Thomas Howell 1926-7-24 2104 Plumas Near Pratville 1463 Comment
  CAS-BOT-BC290326  Crepis John Thomas Howell 1962-6-17 37724 Plumas Portola 1463 Comment
  CAS-BOT-BC290327  Crepis John Thomas Howell 1962-6-17 37726 Plumas Portola 1463 Comment
  CAS-BOT-BC290329  Crepis John Thomas Howell 1962-6-17 37727 Plumas Portola 1463 Comment
  CAS-BOT-BC290330  Crepis John Thomas Howell 1962-6-17 37728 Plumas Portola 1463 Comment
  CAS-BOT-BC290443  Crepis acuminata John Thomas Howell 1975-7-22 51360 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC290859  Crepis pleurocarpa John Thomas Howell 1924-8-11 629 Plumas Two miles east of Chester on road to Westwood 1310 Comment
  CAS-BOT-BC290860  Crepis pleurocarpa John Thomas Howell 1926-7-20 2087 Plumas Near Prattville 1463 Comment
  CAS-BOT-BC291565  Crepis intermedia John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1969-6-24 2424 Plumas Adjacent to the mouth of Butterfly Creek, Butterfly Botanical Area and vicinity 883 Comment
  CAS-BOT-BC292272  Dieteria canescens John Thomas Howell 1955-7-19 30739 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC292274  Dieteria canescens John Thomas Howell 1959-9-24 34974 Plumas Beckwourth 1487 Comment
  CAS-BOT-BC293021  Ericameria parryi var. nevadensis John Thomas Howell 1977-8-11 52693 Plumas North end of Frenchmans Reservoir 1706 Comment
  CAS-BOT-BC293022  Ericameria parryi var. nevadensis John Thomas Howell 1951-8-20 28210 Plumas Between Taylorsville and Genesee 1097 Comment
  CAS-BOT-BC293024  Ericameria parryi var. nevadensis John Thomas Howell 1959-9-24 34966 Plumas Sierra Valley near Beckwourth 1478 Comment
  CAS-BOT-BC293025  Ericameria parryi var. nevadensis John Thomas Howell 1959-9-24 34967 Plumas Sierra Valley near Beckwourth 1478 Comment
  CAS-BOT-BC293026  Ericameria parryi var. nevadensis John Thomas Howell 1959-9-24 34976 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC293028  Ericameria parryi var. nevadensis John Thomas Howell 1961-9-23 36878 Plumas Cooks Creek road near Englemine [Engel Mine] 1082 Comment
  CAS-BOT-BC293029  Ericameria parryi var. nevadensis John Thomas Howell 1959-9-24 34961 Plumas Near Blairsden 1341 Comment
  CAS-BOT-BC294290  Ericameria nauseosa var. speciosa John Thomas Howell 1974-9-20 50902 Plumas About 2 miles from Spring Garden on road to Quincy 1158 Comment
  CAS-BOT-BC294291  Ericameria nauseosa var. speciosa John Thomas Howell 1974-9-20 50901 Plumas About 2 miles from Spring Garden on road to Quincy 1158 Comment
  CAS-BOT-BC294292  Ericameria nauseosa var. speciosa John Thomas Howell 1959-9-25 35031 Plumas 1.5 miles SE of Cromberg 1280 Comment
  CAS-BOT-BC294295  Ericameria nauseosa var. speciosa John Thomas Howell 1959-9-25 34980 Plumas Portola 1478 Comment
  CAS-BOT-BC294297  Ericameria nauseosa var. speciosa John Thomas Howell 1959-9-25 34999 Plumas 2 miles east of Portola 1484 Comment
  CAS-BOT-BC29434  Ageratina occidentalis J. T. Howell; Gordon H. True 1973-7-31 50075 Plumas Summit ridge of Thompson Peak, Diamond Range 2362 Comment
  CAS-BOT-BC294399  Ericameria parryi var. latior John Thomas Howell 1924-8-11 631 Plumas Two miles east of Chester on road to Westwood 1310 Comment
  CAS-BOT-BC294962  Erigeron compositus John Thomas Howell; Gordon H. True 1973-7-31 50078 Plumas Summit ridge of Thompson Peak, Diamond Range 2362 Comment
  CAS-BOT-BC29511  Agoseris John Thomas Howell 1962-6-18 37735 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC29512  Agoseris John Thomas Howell 1955-7-20 30854 Plumas Mohawk 1371 Comment
  CAS-BOT-BC295225  Erigeron inornatus John Thomas Howell 1975-7-22 51375 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC295226  Erigeron inornatus John Thomas Howell 1926-7-24 2106 Plumas Near Prattville 1310 Comment
  CAS-BOT-BC295228  Erigeron inornatus John Thomas Howell; Gordon H. True 1973-7-31 50127 Plumas On road from Janesville to Thompson Peak, Diamond Range 1981 Comment
  CAS-BOT-BC295229  Erigeron inornatus John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-10 2160 Plumas Butterfly Botanical Area and vicinity. Confluence of Butterfly Creek 883 Comment
  CAS-BOT-BC295422  Erigeron inornatus var. calidipetris John Thomas Howell 1959-9-24 34958 Plumas Near Cromberg 1249 Comment
  CAS-BOT-BC295484  Erigeron lassenianus var. lassenianus John Thomas Howell; Gordon H. True 1967-7-11 43278 Plumas 2 miles from Quincy Junction on road to Mt. Hough 1219 Comment
  CAS-BOT-BC295485  Erigeron lassenianus var. lassenianus John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1969-6-24 2454 Plumas Butterfly Botanical Area and vicinity. Butterfly Creek Canyon 990 Comment
  CAS-BOT-BC295488  Erigeron lassenianus var. lassenianus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54168 Plumas 3.25 miles west of Round Valley Reservoir dam 1633 Comment
  CAS-BOT-BC295998  Erigeron divergens John Thomas Howell 1959-9-24 34921 Plumas Indian Creek Canyon nea Indian Falls, Sierra Nevada Comment
  CAS-BOT-BC295999  Erigeron divergens John Thomas Howell 1959-9-24 34957 Plumas Near Cromberg, Sierra Nevada 1249 Comment
  CAS-BOT-BC296000  Erigeron divergens John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54302 Plumas East side of Indian Valley just north of Taylorsville, Sierra Nevada 1112 Comment
  CAS-BOT-BC296001  Erigeron divergens John Thomas Howell; Walter Knight; Irja Knight 1966-7-28 1471 Plumas In Butterfly Canyon along roadside, Butterfly Botanical Area and vicinity 990 Comment
  CAS-BOT-BC296015  Erigeron divergens John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54168 Plumas 3.25 miles west of Round Valley Reservoir Dam, Sierra Nevada 1633 Comment
  CAS-BOT-BC296016  Erigeron divergens John Thomas Howell 1924-8-10 611 Plumas Crescent Mills 1219 Comment
  CAS-BOT-BC29653  Agoseris grandiflora var. grandiflora John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54118 Plumas Quincy 1036 Comment
  CAS-BOT-BC299443  Ericameria nauseosa var. speciosa John Thomas Howell 1959-9-24 34975 Plumas Beckwourth, Sierra Nevada 1493 Comment
  CAS-BOT-BC300125  Erigeron pumilus var. intermedius John Thomas Howell 1955-7-19 30794 Plumas Vinton 1505 Comment
  CAS-BOT-BC300417  Erigeron eatonii var. sonnei John Thomas Howell 1962-6-18 37762 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC300418  Erigeron eatonii var. sonnei John Thomas Howell 1962-6-17 37699 Plumas Portola 1463 Comment
  CAS-BOT-BC303816  Gnaphalium John Thomas Howell 1976-7-16 51892 Plumas Spanish Creek at mouth of Wapaunsie Creek 1097 Comment
  CAS-BOT-BC304925  Grindelia hirsutula John Thomas Howell 1961-9-23 36832 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC304929  Grindelia hirsutula John Thomas Howell 1959-9-21 34826 Plumas Greenville 1088 Comment
  CAS-BOT-BC306030  Hemizonia congesta subsp. clevelandii John Thomas Howell 1961-9-23 36825 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC306031  Hemizonia congesta subsp. clevelandii John Thomas Howell 1961-9-23 36825 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC306690  Helenium bigelovii John Thomas Howell 1960-7-18 35532 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC306693  Helenium bigelovii John Thomas Howell 1951-6-28 27682 Plumas Jamison Creek 1584 Comment
  CAS-BOT-BC306695  Helenium bigelovii John Thomas Howell 1924-8-10 615 Plumas Bog in Butterfly Valley, near Quincy Comment
  CAS-BOT-BC307374  Gnaphalium palustre John Thomas Howell 1962-6-17 37661 Plumas Butterfly Valley, Sierra Nevada 1036 Comment
  CAS-BOT-BC307375  Gnaphalium palustre John Thomas Howell 1926-7-26 2140 Plumas Near Prattville 1371 Comment
  CAS-BOT-BC307378  Gnaphalium palustre John Thomas Howell 1959-9-22 34865 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC307379  Gnaphalium palustre John Thomas Howell 1961-9-22 36797 Plumas Wolf Creek, Greenville, Sierra Nevada 1088 Comment
  CAS-BOT-BC307518  Hazardia whitneyi var. whitneyi John Thomas Howell 1926-7-27 2147 Plumas Near Prattville 1676 Comment
  CAS-BOT-BC310387  Eucephalus breweri John Thomas Howell; Gordon H. True 1967-7-11 43347 Plumas Summit ridge of Mt. Hough 2194 Comment
  CAS-BOT-BC310919  Heterotheca villosa John Thomas Howell 1959-9-25 35011 Plumas Sierra Valley near Beckwourth 1493 Comment
  CAS-BOT-BC310921  Heterotheca villosa John Thomas Howell 1977-8-11 52670 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir 1676 Comment
  CAS-BOT-BC31153  Carex lemmonii John Thomas Howell 1960-7-23 35946 Plumas Meadow near Soda Spring, Drakesbad. 1828 Comment
  CAS-BOT-BC31154  Carex lemmonii John Thomas Howell 1960-7-18 35513 Plumas Wet meadow, Drakesbad. 1828 Comment
  CAS-BOT-BC31155  Carex lemmonii John Thomas Howell 1967-6-23 42703 Plumas butterfly Valley. 1036 Comment
  CAS-BOT-BC312323  Hieracium John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-12 2118 Plumas At spring, Butterfly Botanical Area and Vicinity 1127 Comment
  CAS-BOT-BC313433  Hemizonella minima John Thomas Howell 1961-6-21 36616 Plumas Greenville, Sierra Nevada 1097 Comment
  CAS-BOT-BC314216  Monardella odoratissima subsp. glauca John Thomas Howell 1960-7-24 35972 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC314803  Helianthella californica var. nevadensis John Thomas Howell; Walter Knight; Irja Knight; Gordon H. True 1967-6-12 2090 Plumas Near pond reservoir, Butterfly Botanical Area and Vicinity 1097 Comment
  CAS-BOT-BC31635  Carex luzulina var. ablata John Thomas Howell 1951-6-27 27597 Plumas McRae Meadow. 1981 Comment
  CAS-BOT-BC31636  Carex luzulina var. ablata John Thomas Howell 1960-7-23 35942 Plumas Drakesbad, Wet meadow near Soda Spring. 1828 Comment
  CAS-BOT-BC317172  Packera subnuda var. subnuda John Thomas Howell; Gordon H. True; W. Knight; Irja Knight 1968-6-11 2392 Plumas In wet area on east side of Butterfly Valley Comment
  CAS-BOT-BC31944  Carex microptera John Thomas Howell 1951-6-27 27584 Plumas McRae Meadow. 1981 Comment
  CAS-BOT-BC32072  Carex multicaulis John Thomas Howell 1961-6-21 36641 Plumas Greenville 1097 Comment
  CAS-BOT-BC32226  Carex multicostata John Thomas Howell 1951-6-27 27593 Plumas McRae Meadow. 1981 Comment
  CAS-BOT-BC322971  Stephanomeria tenuifolia John Thomas Howell 1951-8-20 28211 Plumas Between Taylorsville and Genesee, Sierra Nevada 1097 Comment
  CAS-BOT-BC324815  Iva axillaris John Thomas Howell 1951-6-28 27660 Plumas Johnsville, Sierra Nevada 1584 Comment
  CAS-BOT-BC324818  Iva axillaris John Thomas Howell 1959-9-22 34830 Plumas Wolf Creek 1371 Comment
  CAS-BOT-BC328155  Pyrrocoma lucida John Thomas Howell 1955-7-20 30865 Plumas Mohawk, Sierra Nevada 1371 Comment
  CAS-BOT-BC328156  Pyrrocoma lucida John Thomas Howell 1961-9-23 36869 Plumas Indian Valley, Sierra Nevada 1082 Comment
  CAS-BOT-BC328157  Pyrrocoma lucida John Thomas Howell 1961-9-25 36957 Plumas Portola, Sierra Nevada 1478 Comment
  CAS-BOT-BC329079  Tetradymia canescens John Thomas Howell 1955-7-19 30750 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC330952  Acer glabrum var. glabrum John Thomas Howell 1951-6-28 27700 Plumas Eureka Peak 2133 Comment
  CAS-BOT-BC330954  Acer glabrum var. glabrum John Thomas Howell; Gordon H. True 1967-7-11 43340 Plumas Sierra Nevada. Summit ridge of Mt. Hough 2194 Comment
  CAS-BOT-BC341573  Lagophylla ramosissima John Thomas Howell 1967-6-23 42697 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC34200  Carex canescens John Thomas Howell 1976-7-15 51841 Plumas Sierra Nevada. Snake Lake, about 4 miles northwest of Quincy. 1219 Comment
  CAS-BOT-BC342867  Madia glomerata John Thomas Howell 1961-9-23 36840 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC342868  Madia glomerata John Thomas Howell 1951-8-20 28196 Plumas Indian Valley 1066 Comment
  CAS-BOT-BC342871  Madia glomerata John Thomas Howell; Gordon H. True 1973-7-31 50140 Plumas On road from Janesville to Thompson Peak. Diamond Range 1905 Comment
  CAS-BOT-BC343249  Madia gracilis John Thomas Howell 1951-6-28 27645 Plumas Johnsville 1584 Comment
  CAS-BOT-BC343273  Madia gracilis John Thomas Howell 1955-7-20 30859 Plumas Mohawk 1371 Comment
  CAS-BOT-BC343274  Madia gracilis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54252 Plumas About 2.5 miles southeast of Mt. Hough on the road to Quincy 1798 Comment
  CAS-BOT-BC343275  Madia gracilis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54122 Plumas Quincy 1036 Comment
  CAS-BOT-BC343276  Madia gracilis John Thomas Howell 1967-6-23 42695 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC343277  Madia gracilis John Thomas Howell 1960-7-18 35584 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC343281  Madia gracilis John Thomas Howell; Gordon H. True 1967-7-9 43273 Plumas Meadow at Quincy 1036 Comment
  CAS-BOT-BC343284  Madia gracilis John Thomas Howell; Gordon H. True 1967-7-9 43273 Plumas Meadow at Quincy 1036 Comment
  CAS-BOT-BC343285  Madia gracilis John Thomas Howell; Gordon H. True 1967-7-11 43284 Plumas Two miles from Quincy Junction on road to Mt. Hough 1219 Comment
  CAS-BOT-BC343286  Madia gracilis John Thomas Howell; Gordon H. True 1967-7-11 43317 Plumas About 3 miles southeast of Mt. Hough 1706 Comment
  CAS-BOT-BC343781  Madia elegans John Thomas Howell 1959-9-24 34911 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC34406  Carex cusickii John Thomas Howell 1976-7-15 51835 Plumas Sierra Nevada. Snake Lake, about 4 miles northwest of Quincy. 1219 Comment
  CAS-BOT-BC34407  Carex cusickii John Thomas Howell 1967-6-23 42711 Plumas Sierra Nevada. Butterfly Valley. 1036 Comment
  CAS-BOT-BC344470  Madia exigua John Thomas Howell 1962-6-17 37676 Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC344472  Madia exigua John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1967-6-12 1985 Plumas Butterfly Botanical Area and Vicinity. Near barn in valley proper 1036 Comment
  CAS-BOT-BC345248  Madia subspicata John Thomas Howell 1967-6-23 42695 Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC347523  Malacothrix floccifera John Thomas Howell 1977-6-21 52382 Plumas Seneca 1097 Comment
  CAS-BOT-BC347526  Malacothrix floccifera John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1967-6-12 1977 Plumas Butterfly Botanical Area and Vicinity. In valley proper 1036 Comment
  CAS-BOT-BC349333  Microseris nutans John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-12 2148 Plumas Butterfly Botanical Area and Vicinity 1097 Comment
  CAS-BOT-BC349336  Microseris nutans John Thomas Howell 1960-7-21 35807 Plumas Lassen Volcanic National Park. Near Terminal Geyser 1828 Comment
  CAS-BOT-BC35580  Scirpus congdonii John Thomas Howell 1951-6-27 27602 Plumas McRae Meadow 1981 Comment
  CAS-BOT-BC35586  Scirpus congdonii John Thomas Howell 1960-7-19 35646 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC356515  Pseudognaphalium beneolens John Thomas Howell 1959-9-21 34737 Plumas Belden 701 Comment
  CAS-BOT-BC361680  Pseudognaphalium thermale John Thomas Howell 1975-7-22 51352 A Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC361778  Psilocarphus brevissimus var. brevissimus John Thomas Howell 1962-6-19 37863 Plumas 5.8 miles e. of Beckwourth 1493 Comment
  CAS-BOT-BC361998  Psilocarphus tenellus John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-12 2140 Plumas Butterfly Botanical Area and Vicinity 1097 Comment
  CAS-BOT-BC361999  Psilocarphus tenellus John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-6-12 2009 Plumas Butterfly Botanical Area and Vicinity 1127 Comment
  CAS-BOT-BC362267  Pyrrocoma carthamoides var. cusickii John Thomas Howell 1962-6-17 37716 Plumas Portola 1463 Comment
  CAS-BOT-BC36259  Chrysolepis sempervirens John Thomas Howell; Gordon H. True 1973-7-31 50099 Plumas Canadian Zone Forest, summit ridge of Thompson Peak, Diamond Range 2194 Comment
  CAS-BOT-BC362684  Raillardella argentea John Thomas Howell 1951-6-28 27724 Plumas Eureka Peak 2225 Comment
  CAS-BOT-BC363063  Rigiopappus leptocladus John Thomas Howell 1962-6-17 37675 Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC363064  Rigiopappus leptocladus John Thomas Howell 1967-6-23 s.n. Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC363065  Rigiopappus leptocladus John Thomas Howell; Gordon H. True 1967-7-11 43304 Plumas 2.5 miles from Quincy Junction on road to Mt. Hough 1249 Comment
  CAS-BOT-BC363795  Senecio integerrimus John Thomas Howell 1962-6-17 37697 Plumas Portola 1463 Comment
  CAS-BOT-BC363796  Senecio integerrimus John Thomas Howell 1962-6-18 37740 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC363918  Senecio integerrimus var. exaltatus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54238 Plumas About 3 miles southeast of Mt. Hough on the road to Quincy 1737 Comment
  CAS-BOT-BC363919  Senecio integerrimus var. exaltatus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54238 Plumas About 3 miles southeast of Mt. Hough on the road to Quincy 1737 Comment
  CAS-BOT-BC364394  Senecio triangularis John Thomas Howell 1960-7-18 35531 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC364395  Senecio triangularis John Thomas Howell 1955-7-20 30835 Plumas Mohawk 1371 Comment
  CAS-BOT-BC364765  Sericocarpus oregonensis subsp. californicus John Thomas Howell 1951-8-19 28188 Plumas Greenville 1097 Comment
  CAS-BOT-BC365116  Solidago velutina subsp. californica John Thomas Howell 1959-9-24 34913 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC365117  Solidago velutina subsp. californica John Thomas Howell 1959-9-21 34736 Plumas Belden 701 Comment
  CAS-BOT-BC365514  Solidago elongata John Thomas Howell 1960-7-18 35590 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC365515  Solidago elongata John Thomas Howell; Gordon H. True 1974-7-29 50630 Plumas Quincy 1036 Comment
  CAS-BOT-BC36772  Brassica rapa John Thomas Howell 1966-7-29 42025 Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC37133  Capsella bursa-pastoris John Thomas Howell 1960-7-19 35649 Plumas Lassen Volcanic National Park. Drakesbad. Near hot springs. 1828 Comment
  CAS-BOT-BC37241  Cardamine breweri John Thomas Howell 1960-7-22 35874 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC374765  Sphaeromeria potentilloides var. potentilloides John Thomas Howell 1962-6-19 37878 Plumas Chilcoot 1524 Comment
  CAS-BOT-BC374767  Sphaeromeria potentilloides var. potentilloides John Thomas Howell 1963-6-4 39407 Plumas Marble Hot Springs, Sierra Valley Comment
  CAS-BOT-BC375208  Stephanomeria elata John Thomas Howell 1976-7-14 51822 Plumas Feather River Canyon Highway at Injun Jim Campground 609 Comment
  CAS-BOT-BC375616  Stephanomeria lactucina John Thomas Howell 1924-8-11 632 Plumas Two miles east of Chester on road to Westwood 1310 Comment
  CAS-BOT-BC376473  Crepis pleurocarpa John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54307 Plumas East side of Indian Valley just north of Taylorsville 1112 Comment
  CAS-BOT-BC376528  Crepis monticola John Thomas Howell 1962-6-17 37666 Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC376531  Crepis monticola John Thomas Howell 1960-7-19 35678 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC376571  Crepis occidentalis subsp. pumila John Thomas Howell; Gordon H. True 1967-7-11 43369 Plumas About 2 miles southeast of Mt. Hough 1828 Comment
  CAS-BOT-BC38121  Cardamine pensylvanica John Thomas Howell 1962-6-17 37657 Plumas Sierra Nevada. Butterfly Valley. 1036 Comment
  CAS-BOT-BC383180  Wyethia angustifolia John Thomas Howell 1973-7-10 49756 Plumas Near Greenville 1097 Comment
  CAS-BOT-BC383565  Wyethia mollis John Thomas Howell 1955-7-19 30748 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC383750  Xanthium strumarium John Thomas Howell 1959-9-21 34804 Plumas Near Paxton 883 Comment
  CAS-BOT-BC38483  Arctostaphylos mewukka subsp. truei John Thomas Howell 1975-7-22 51358 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC38484  Arctostaphylos mewukka subsp. truei John Thomas Howell 1975-7-22 51359 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC38487  Arctostaphylos mewukka subsp. truei John Thomas Howell 1966-7-26 42005 Plumas Injun Jim Campground at confluence of Granite Creek and North Fork of Feather River. 609 Comment
  CAS-BOT-BC38488  Arctostaphylos mewukka subsp. truei John Thomas Howell 1975-7-21 51339 Plumas Injun Jim Campground, Feather River Canyon. 609 Comment
  CAS-BOT-BC38491  Arctostaphylos mewukka subsp. truei John Thomas Howell; Gordon H. True 1967-7-11 43287 Plumas 2 miles from Quincy Junction on road to Mt. Hough 1219 Comment
  CAS-BOT-BC384936  Cerastium arvense John Thomas Howell; Gordon H. True 1967-5-9 42211 Plumas Lewisia Rock, 3.5 miles southwest of Belden, Feather River Canyon 609 Comment
  CAS-BOT-BC385033  Vitis californica John Thomas Howell; H. Keith Wagnon 1980-5-26 53597 Plumas Sierra Nevada: North Fork of Feather River between the mouth of East Branch and Caribou 792 Comment
  CAS-BOT-BC385083  Vitis vinifera John Thomas Howell; H. Keith Wagnon 1980-5-26 53598 Plumas Sierra Nevada: North Fork of Feather River between the mouth of East Branch and Caribou 792 Comment
  CAS-BOT-BC38615  Arctostaphylos mewukka subsp. truei John Thomas Howell 1959-9-21 34779 Plumas N. Fork Feather River near Belden 701 Comment
  CAS-BOT-BC38616  Arctostaphylos mewukka subsp. truei John Thomas Howell 1959-9-21 34777 Plumas N. Fork Feather River near Belden 701 Comment
  CAS-BOT-BC38617  Arctostaphylos mewukka subsp. truei John Thomas Howell 1959-9-21 34778 Plumas N. Fork Feather River near Belden 701 Comment
  CAS-BOT-BC38619  Arctostaphylos mewukka subsp. truei John Thomas Howell 1975-7-21 51336 Plumas Injun Jim Campground, Feather River Canyon 609 Comment
  CAS-BOT-BC38620  Arctostaphylos mewukka subsp. truei John Thomas Howell; Gordon H. True 1967-5-7 42182 Plumas Injun Jim Campground at confluence of Granite Creek and North Fork of Feather River 609 Comment
  CAS-BOT-BC386989  Silene douglasii John Thomas Howell; Gordon H. True 1967-7-11 43353 Plumas Summit ridge of Mt. Hough 2194 Comment
  CAS-BOT-BC389376  Silene lemmonii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54214 Plumas About 5 miles southeast of Mt. Hough on the road to Quincy 1584 Comment
  CAS-BOT-BC389377  Silene lemmonii John Thomas Howell 1961-6-21 36659 Plumas Greenville 1097 Comment
  CAS-BOT-BC389384  Silene lemmonii John Thomas Howell 1960-7-20 35715 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC390073  Spergularia atrosperma John Thomas Howell 1962-6-19 37866 Plumas 5.8 mi. east of Beckwourth 1493 Comment
  CAS-BOT-BC391185  Stellaria longipes subsp. longipes John Thomas Howell 1967-6-23 42716 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC391188  Stellaria longipes subsp. longipes John Thomas Howell 1976-7-16 51900 Plumas On flood plain of Spanish Creek at mouth of Wapaunsie Creek 1097 Comment
  CAS-BOT-BC391347  Aconitum columbianum John Thomas Howell 1955-7-20 30836 Plumas Mohawk 1371 Comment
  CAS-BOT-BC391473  Aconitum columbianum subsp. columbianum John Thomas Howell 1960-7-20 35718 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC392268  Myosurus apetalus John Thomas Howell 1962-6-19 37865 Plumas 5.8 miles e. of Beckwourth 1493 Comment
  CAS-BOT-BC392416  Thalictrum fendleri John Thomas Howell 1951-6-27 27622 Plumas Jamison Creek 1828 Comment
  CAS-BOT-BC392417  Thalictrum fendleri John Thomas Howell 1960-7-18 35557 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC397725  Stellaria nitens John Thomas Howell; H. Keith Wagnon 1980-5-26 53585 Plumas Lewisia Rock, Feather River Canyon 3.5 miles SW of Belden 609 Comment
  CAS-BOT-BC40008  Arctostaphylos nevadensis John Thomas Howell; Gordon H. True 1967-7-11 43345 Plumas Summit ridge of Mt. Hough 2194 Comment
  CAS-BOT-BC400771  Asarum lemmonii John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2393 Plumas On east side of Butterfly Valley Comment
  CAS-BOT-BC400944  Hypericum anagalloides John Thomas Howell 1960-7-18 35518 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC400945  Hypericum anagalloides John Thomas Howell 1961-9-22 36799 Plumas Wolf Creek, Greenville 1088 Comment
  CAS-BOT-BC401876  Corydalis caseana subsp. caseana John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54364 Plumas 0.75 miles northeast of Bucks Summit on road to Quincy 1600 Comment
  CAS-BOT-BC403352  Eschscholzia californica John Thomas Howell 1959-9-24 34918 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC407729  Arceuthobium abietinum John Thomas Howell 1960-7-21 35820 Plumas near Terminal Geyser 1798 Comment
  CAS-BOT-BC412895  Aconogonon davisiae John Thomas Howell 1951-6-28 27692 Plumas Eureka Peak 2133 Comment
  CAS-BOT-BC413563  Persicaria amphibia John Thomas Howell 1973-7-9 49726 Plumas At outlet of Round Valley Reservoir 1371 Comment
  CAS-BOT-BC414549  Polygonum douglasii John Thomas Howell 1959-9-22 34847 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC414553  Polygonum douglasii John Thomas Howell 1926-7-26 2142 Plumas Near Prattville 1371 Comment
  CAS-BOT-BC414563  Polygonum douglasii John Thomas Howell; Gordon H. True 1973-7-31 50090 Plumas Summit ridge of Thompson Peak, Diamond Range 2194 Comment
  CAS-BOT-BC414565  Polygonum douglasii John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2125 Plumas Butterfly Botanical Area and Vicinity. At spring 1127 Comment
  CAS-BOT-BC419884  Polygonum polygaloides subsp. confertiflorum John Thomas Howell 1962-6-18 37806 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC419885  Polygonum polygaloides subsp. confertiflorum John Thomas Howell 1973-7-10 49734 Plumas Near Greenville 1097 Comment
  CAS-BOT-BC419888  Polygonum polygaloides subsp. confertiflorum John Thomas Howell 1962-6-18 37807 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC420058  Polygonum polygaloides subsp. kelloggii John Thomas Howell 1962-6-18 37805 Plumas Sierra Valley, near Beckwourth 1487 Comment
  CAS-BOT-BC420063  Polygonum polygaloides subsp. kelloggii John Thomas Howell 1960-7-19 35630 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC420148  Polygonum ramosissimum subsp. ramosissimum John Thomas Howell 1951-8-19 28192 Plumas Greenville 1097 Comment
  CAS-BOT-BC420209  Polygonum sawatchense subsp. sawatchense John Thomas Howell; Gordon H. True 1967-7-11 43309 Plumas About 3 miles southeast of Mt. Hough 1706 Comment
  CAS-BOT-BC420210  Polygonum sawatchense subsp. sawatchense John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54258 Plumas About 2.5 miles southeast of Mt. Hough on the road to Quincy 1798 Comment
  CAS-BOT-BC42088  Arctostaphylos patula John Thomas Howell; Gordon H. True 1967-5-9 42202 Plumas At the conference of Butterfly & Spanish Creeks 883 Comment
  CAS-BOT-BC42091  Arctostaphylos patula John Thomas Howell 1976-7-20 52035 Plumas At south end of Lake Almanor 1371 Comment
  CAS-BOT-BC42092  Arctostaphylos patula John Thomas Howell 1975-6-16 51132 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC42095  Arctostaphylos patula John Thomas Howell; Gordon H. True 1967-5-8 42193 Plumas Near the spring in the Butterfly Botanical Area 1097 Comment
  CAS-BOT-BC42096  Arctostaphylos patula John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1968-6-11 2414 Plumas Butterfly Botanical Area, Trestle Glen 1097 Comment
  CAS-BOT-BC42097  Arctostaphylos patula John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-5-7 1784 Plumas Trestle Glen 1112 Comment
  CAS-BOT-BC421037  Polygonum spergulariiforme John Thomas Howell 1959-9-24 34963 Plumas Sierra Valley near Beckwourth 1478 Comment
  CAS-BOT-BC42108  Arctostaphylos patula John Thomas Howell 1960-7-20 35779 Plumas Between Boiling Springs Lake and Terminal Geyser 1859 Comment
  CAS-BOT-BC42111  Arctostaphylos patula John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2167 Plumas Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC422164  Rumex californicus John Thomas Howell 1966-7-29 42017 Plumas Quincy 1036 Comment
  CAS-BOT-BC422165  Rumex californicus John Thomas Howell 1959-9-21 34813 Plumas Indian Creek Canyon 914 Comment
  CAS-BOT-BC422168  Rumex californicus John Thomas Howell 1976-7-16 51908 Plumas On flood plain of Spanish Creek at mouth of Wapaunsie Creek. 1097 Comment
  CAS-BOT-BC424164  Heuchera micrantha var. erubescens John Thomas Howell 1976-7-16 51883 Plumas Spanish Creek near mouth of Slate Creek 1066 Comment
  CAS-BOT-BC424165  Heuchera micrantha var. erubescens John Thomas Howell; Gordon H. True 1967-5-9 42206 Plumas Lewisia Rock, 3.5 miles SW of Belden, Feather River Canyon 609 Comment
  CAS-BOT-BC425154  Heuchera rubescens John Thomas Howell; Gordon H. True 1967-7-11 43352 Plumas Summit ridge of Mt. Hough 2194 Comment
  CAS-BOT-BC426356  Chenopodium desiccatum John Thomas Howell 1962-6-19 37881 Plumas Beckwourth Pass 1584 Comment
  CAS-BOT-BC428430  Lithophragma tenellum John Thomas Howell 1951-6-28 27691 Plumas Eureka Peak 2133 Comment
  CAS-BOT-BC428882  Micranthes californica John Thomas Howell 1962-6-16 37637 Plumas Lewisia Rock, Feather River. 640 Comment
  CAS-BOT-BC428883  Micranthes californica John Thomas Howell; H. Keith Wagnon 1980-5-26 53586 Plumas Lewisia Rock, Feather River Canyon, 3.5 miles southwest of Belden. 609 Comment
  CAS-BOT-BC428884  Micranthes californica John Thomas Howell; Gordon H. True 1967-5-9 42207 Plumas Lewisia Rock. 3.5 miles southwest of Belden, Feather River Canyon. 609 Comment
  CAS-BOT-BC429240  Micranthes oregana John Thomas Howell 1960-7-23 35963 Plumas Lassen Volcanic National Park. Dream Lake, Drakesbad 1828 Comment
  CAS-BOT-BC43034  Descurainia incisa subsp. incisa John Thomas Howell 1962-6-18 37793 Plumas Sierra Nevada. Sierra Valley near Beckwourth. 1487 Comment
  CAS-BOT-BC43083  Descurainia longipedicellata John Thomas Howell 1962-6-18 37813 Plumas Sierra Nevada. Sierra Valley 5 miles south of Beckwourth. 1493 Comment
  CAS-BOT-BC43111  Descurainia pinnata subsp. brachycarpa John Thomas Howell 1977-6-20 52370 Plumas Sierra Nevada. On the peninsula of Lake Almanor. 1371 Comment
  CAS-BOT-BC433057  Mitella pentandra John Thomas Howell 1960-7-23 35966 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC433734  Rumex occidentalis John Thomas Howell 1960-7-19 35623 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC434081  Rumex transitorius John Thomas Howell 1961-9-25 36933 Plumas Feather River bed, Portola 1478 Comment
  CAS-BOT-BC434305  Rumex triangulivalvis John Thomas Howell 1951-6-27 27559 Plumas Johnsville 1584 Comment
  CAS-BOT-BC434307  Rumex triangulivalvis John Thomas Howell 1960-7-22 35891 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC434308  Rumex triangulivalvis John Thomas Howell 1959-9-22 34853 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC434309  Rumex triangulivalvis John Thomas Howell 1960-7-19 35616 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC43502  Descurainia sophia John Thomas Howell; Gordon H. True 1968-6-10 44555 Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC43503  Descurainia sophia John Thomas Howell 1955-7-19 30787 Plumas Sierra Nevada. Vinton. 1505 Comment
  CAS-BOT-BC438109  Ribes John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54327 Plumas 1.4 miles north-northeast of Englemine on Diamond Mt. Road 1295 Comment
  CAS-BOT-BC438481  Calandrinia ciliata John Thomas Howell 1960-7-18 35570 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC438482  Calandrinia ciliata John Thomas Howell 1962-6-18 37765 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC439876  Claytonia perfoliata John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1969-6-24 2460 Plumas Butterfly Creek Canyon. 990 Comment
  CAS-BOT-BC439877  Claytonia perfoliata John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-6-12 2075 Plumas Butterfly Botanical Area and Vicinity 1127 Comment
  CAS-BOT-BC443637  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1962-6-18 37766 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC443646  Claytonia perfoliata subsp. perfoliata John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54158 Plumas 3.25 miles west of Round Valley Reservoir dam 1633 Comment
  CAS-BOT-BC444179  Lewisia nevadensis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54102 Plumas 10.6 miles northeast of La Porte on road to Quincy 1889 Comment
  CAS-BOT-BC444574  Lewisia triphylla John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54103 Plumas 10.6 miles northeast of La Porte on road to Quincy 1889 Comment
  CAS-BOT-BC444742  Montia chamissoi John Thomas Howell 1960-7-23 35969 Plumas Lassen Volcanic National Park. Dream Lake, Drakesbad 1828 Comment
  CAS-BOT-BC444744  Montia chamissoi John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54107 Plumas 10.6 miles northeast of La Porte on road to Quincy 1889 Comment
  CAS-BOT-BC444855  Montia fontana J. T. Howell; Walter Knight; Irja Knight; G. H. True 1967-5-7 2228 C Plumas Butterfly Botanical Area and Vicinity. Pond Reservoir 1097 Comment
  CAS-BOT-BC444859  Montia fontana John Thomas Howell 1960-7-21 35864 Plumas Lassen Volcanic National Park. On trail to Little Willow Lake 1767 Comment
  CAS-BOT-BC444860  Montia fontana John Thomas Howell 1960-7-18 35522 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC445089  Montia linearis John Thomas Howell 1962-6-18 37739 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC445677  Sagittaria cuneata John Thomas Howell 1966-7-29 42009 Plumas Quincy. 1036 Comment
  CAS-BOT-BC451429  Chimaphila menziesii John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2153 Plumas Butterfly Botanical Area and vicinity: Beargrass Glade 1127 Comment
  CAS-BOT-BC451589  Lilaea scilloides John Thomas Howell 1963-6-4 39406 Plumas Marble Hot Springs, Sierra Valley Comment
  CAS-BOT-BC451739  Claytonia lanceolata John Thomas Howell 1951-6-28 27685 Plumas Eureka Peak 2133 Comment
  CAS-BOT-BC459652  Holodiscus John Thomas Howell 1977-8-11 52683 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir Comment
  CAS-BOT-BC47071  Arctostaphylos viscida subsp. viscida John Thomas Howell; Gordon True 1967-5-8 42201 Plumas Butterfly Valley. 1036 Comment
  CAS-BOT-BC47072  Arctostaphylos viscida subsp. viscida John Thomas Howell 1976-4-2 51577 Plumas 2 mi. nw. of Spring Garden. 1173 Comment
  CAS-BOT-BC47864  Ceanothus cordulatus John Thomas Howell 1926-7-26 2116 Plumas Near Prattville 1463 Comment
  CAS-BOT-BC47971  Ceanothus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54296 Plumas Sierra Nevada - East side of Indian Valley just north of Taylorsville 1112 Comment
  CAS-BOT-BC48612  Ceanothus cordulatus John Thomas Howell; Gordon H. True 1967-7-11 43315 Plumas Coniferous forest about 3 miles southeast of Mt. Hough 1706 Comment
  CAS-BOT-BC48613  Ceanothus cordulatus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54273 Plumas Rocky summit ridge, Mt. Hough 2203 Comment
  CAS-BOT-BC48617  Ceanothus cordulatus John Thomas Howell 1924-8-9 603 Plumas Two miles east of Chester on Road to Westwood 1310 Comment
  CAS-BOT-BC49180  Ceanothus cuneatus John Thomas Howell 1959-9-21 34775 Plumas N. Fk. Feather River near Belden 701 Comment
  CAS-BOT-BC50733  Ceanothus integerrimus John Thomas Howell 1961-6-21 36596 Plumas Sierra Nevada - Greenville 1097 Comment
  CAS-BOT-BC50734  Ceanothus integerrimus John Thomas Howell 1975-7-22 51376 Plumas Sierra Nevada - 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC52058  Ceanothus prostratus John Thomas Howell 1975-7-22 51356 Plumas 2 miles Northwest of Spring Garden 1173 Comment
  CAS-BOT-BC54687  Erysimum capitatum var. capitatum John Thomas Howell 1976-7-16 51882 Plumas Sierra Nevada. Spanish Creek near mouth of Slate Creek. 1066 Comment
  CAS-BOT-BC55288  Hesperis matronalis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54124 Plumas Sierra Nevada. Quincy. On bank of Spanish Creek. 1036 Comment
  CAS-BOT-BC55405  Hirschfeldia incana John Thomas Howell; Gordon H. True 1968-6-10 44541 Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC55685  Frangula purshiana John Thomas Howell 1959-9-24 34935 Plumas Butterfly Valley near mouth Comment
  CAS-BOT-BC55686  Frangula purshiana John Thomas Howell 1959-9-21 34741 Plumas Belden 701 Comment
  CAS-BOT-BC55687  Frangula purshiana John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2185 Plumas Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC55823  Rhamnus John Thomas Howell 1977-6-21 52394 Plumas Vista Point near Lake Almanor Dam 1432 Comment
  CAS-BOT-BC55824  Rhamnus John Thomas Howell 1977-6-21 52395 Plumas Vista Point near Lake Almanor Dam 1432 Comment
  CAS-BOT-BC56990  Equisetum arvense John Thomas Howell 1959-9-22 34855 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC56991  Equisetum arvense John Thomas Howell 1960-7-19 35661 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC56992  Equisetum arvense John Thomas Howell 1962-6-17 37658 Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC56997  Equisetum arvense John Thomas Howell 1961-6-21 36631 Plumas Greenville 1097 Comment
  CAS-BOT-BC57004  Equisetum arvense John Thomas Howell 1959-9-21 34765 Plumas Bars of N. Fork of Feather River near Belden 701 Comment
  CAS-BOT-BC57396  Equisetum laevigatum John Thomas Howell 1962-6-18 37734 Plumas Near Beckwourth, Sierra Valley 1487 Comment
  CAS-BOT-BC57397  Equisetum laevigatum John Thomas Howell 1959-9-25 35003 Plumas 2 miles east of Portola 1484 Comment
  CAS-BOT-BC57401  Equisetum laevigatum John Thomas Howell; Gordon H. True 1967-7-9 43251 Plumas North Fork of Feather River, 3 miles southwest of Caribou 853 Comment
  CAS-BOT-BC57402  Equisetum laevigatum John Thomas Howell; Gordon H. True 1968-6-10 44548 Plumas Quincy 1036 Comment
  CAS-BOT-BC57830  Equisetum hyemale subsp. affine John Thomas Howell 1959-9-24 34919 Plumas Indian Creek Canyon near Indian Falls. 1036 Comment
  CAS-BOT-BC59123  Sedum spathulifolium subsp. purdyi John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54329 Plumas 2.8 miles NNE of Englemine on Diamond Mt. Road 1341 Comment
  CAS-BOT-BC59124  Sedum spathulifolium John Thomas Howell; Gordon H. True 1969-6-23 45822 Plumas On Middle Fork of Feather River, at Nelson Point 1249 Comment
  CAS-BOT-BC59178  Antennaria dimorpha John Thomas Howell 1962-6-17 37707 Plumas Portola 1463 Comment
  CAS-BOT-BC59317  Antennaria argentea John Thomas Howell; Gordon True 1969-6-23 45821 Plumas Middle Fork of Feather River at Nelson Point 1249 Comment
  CAS-BOT-BC59566  Rhamnus John Thomas Howell 1976-7-14 51824 Plumas Sierra Nevada - American Valley near Quincy on road to Quincy Junction 1036 Comment
  CAS-BOT-BC59567  Rhamnus John Thomas Howell 1977-8-11 52681 Plumas Sierra Nevada - Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir 1676 Comment
  CAS-BOT-BC59569  Rhamnus John Thomas Howell 1976-7-20 52038 Plumas Sierra Nevada - south end of Lake Almanor 1371 Comment
  CAS-BOT-BC59578  Frangula rubra subsp. rubra John Thomas Howell; Gordon True 1969-6-23 45819 Plumas Sierra Nevada - Middle Fork of Feather River at Nelson Point 1249 Comment
  CAS-BOT-BC59581  Frangula rubra subsp. rubra John Thomas Howell 1975-6-16 51133 Plumas Sierra Nevada - 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC59582  Frangula rubra subsp. rubra John Thomas Howell 1973-7-9 49716 Plumas Sierra Nevada - Round Valley 1371 Comment
  CAS-BOT-BC59605  Leucothoe davisiae John Thomas Howell 1963-6-3 39394 Plumas Butterfly Valley. Comment
  CAS-BOT-BC59607  Leucothoe davisiae John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2156 Plumas Beargrass Glade. Butterfly Botanical Area and Vicinity. 1127 Comment
  CAS-BOT-BC60091  Lepidium virginicum var. menziesii John Thomas Howell 1955-7-19 30788 Plumas Sierra Nevada. Vinton. 1505 Comment
  CAS-BOT-BC60092  Lepidium virginicum var. menziesii John Thomas Howell 1966-7-29 42024 Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC60093  Lepidium virginicum var. menziesii John Thomas Howell 1966-7-29 42024 Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC60676  Phoenicaulis cheiranthoides John Thomas Howell 1962-6-18 37810 Plumas Sierra Nevada. Sierra Valley 5 miles south of Beckwourth. 1493 Comment
  CAS-BOT-BC62739  Quercus garryana var. breweri John Thomas Howell 1951-6-26 27548 Plumas Feather River Canyon 853 Comment
  CAS-BOT-BC63184  Ceanothus velutinus var. velutinus John Thomas Howell 1960-7-20 35782 Plumas Between Borling Springs Lake and Terminal Geyser. 1859 Comment
  CAS-BOT-BC63363  Ceanothus prostratus John Thomas Howell 1951-6-28 27728 Plumas Eureka Lake. 1889 Comment
  CAS-BOT-BC63364  Ceanothus prostratus John Thomas Howell 1926-7-20 2083 Plumas Near Prattville. 1463 Comment
  CAS-BOT-BC63848  Sedum spathulifolium John Thomas Howell 1967-6-23 42728 Plumas Lewisia Rock, 3/5 miles southwest of Belden, Feather River Canyon. 609 Comment
  CAS-BOT-BC64786  Antennaria luzuloides subsp. aberrans John Thomas Howell 1962-6-18 37789 Plumas Sierra Valley near Beckworth 1487 Comment
  CAS-BOT-BC6508  Poa sierrae John Thomas Howell; Gordon H. True 1967-5-9 42204 Plumas Feather River Canyon, 3.5 mi SW of Belden, Lewisia Rock 609 Comment
  CAS-BOT-BC6509  Poa sierrae John Thomas Howell; Gordon H. True 1967-5-9 42204 Plumas Feather River Canyon, 3.5 mi SW of Belden, Lewisia Rock 609 Comment
  CAS-BOT-BC6511  Poa sierrae John Thomas Howell; Gordon H. True 1967-5-9 42204 Plumas Feather River Canyon, 3.5 mi SW of Belden, Lewisia Rock 609 Comment
  CAS-BOT-BC65507  Adiantum aleuticum John Thomas Howell 1962-6-16 37645 Plumas Feather River, North Fork on road to Caribou 731 Comment
  CAS-BOT-BC66091  Athyrium filix-femina var. cyclosorum John Thomas Howell 1960-7-22 35924 Plumas near Devil's Kitchen near Drakesbad 1828 Comment
  CAS-BOT-BC66241  Azolla mexicana John Thomas Howell 1959-9-21 34825 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC69585  Aspidotis densa John Thomas Howell 1959-9-21 34773 Plumas N. Fk. Feather River near Belden. 701 Comment
  CAS-BOT-BC69586  Aspidotis densa John Thomas Howell 1975-6-16 51144 Plumas 2 mi. nw. of Spring Garden. 1173 Comment
  CAS-BOT-BC70203  Cheilanthes gracillima John Thomas Howell 1926-7-27 2145 Plumas Near Prattville 1676 Comment
  CAS-BOT-BC70204  Cheilanthes gracillima John Thomas Howell 1959-9-26 35040 Plumas near Keddie 1005 Comment
  CAS-BOT-BC70205  Cheilanthes gracillima John Thomas Howell; Gordon H. True 1967-7-11 43350 Plumas Summit ridge of Mt. Hough 2194 Comment
  CAS-BOT-BC70670  Cystopteris fragilis John Thomas Howell; Gordon H. True 1969-6-23 45831 Plumas Middle Fork of Feather River at Nelson Point 1249 Comment
  CAS-BOT-BC70671  Cystopteris fragilis John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-10 2214 Plumas Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC70672  Cystopteris fragilis John Thomas Howell 1967-6-23 42671 Plumas Canyon of Butterfly Creek 1036 Comment
  CAS-BOT-BC70677  Cystopteris fragilis John Thomas Howell 1951-6-27 27635 Plumas Jamison Creek 1828 Comment
  CAS-BOT-BC71084  Marsilea vestita John Thomas Howell 1926-7-30 2159 Plumas Prattville 1371 Comment
  CAS-BOT-BC71086  Marsilea vestita John Thomas Howell 1926-7-30 2159 Plumas Lake Almanor Comment
  CAS-BOT-BC71239  Pellaea bridgesii John Thomas Howell 1951-6-28 27694 Plumas Eureka Peak 2133 Comment
  CAS-BOT-BC72041  Polypodium calirhiza John Thomas Howell 1967-6-22 42658 Plumas near mouth of Chambers Creek, canyon of the Feather River North Fork 609 Comment
  CAS-BOT-BC72042  Polypodium calirhiza John Thomas Howell 1967-6-23 42732 Plumas Lewisia Rock 3.5 miles SW. of Belden, Feather River Canyon 609 Comment
  CAS-BOT-BC72271  Polystichum imbricans subsp. curtum John Thomas Howell 1959-9-21 34743 Plumas Belden 701 Comment
  CAS-BOT-BC72355  Polystichum imbricans subsp. imbricans John Thomas Howell 1966-7-26 42004 Plumas Injun Jim Campground at confluence of Granite Creek and North Fork of Feather River 609 Comment
  CAS-BOT-BC72356  Polystichum imbricans subsp. imbricans John Thomas Howell 1960-7-20 35748 Plumas Boiling Springs Lake 1798 Comment
  CAS-BOT-BC72357  Polystichum imbricans subsp. imbricans John Thomas Howell; Gordon H. True 1967-5-9 42213 Plumas Lewisia Rock, 3.5 miles southwest of Belden, Feather River Canyon 609 Comment
  CAS-BOT-BC72608  Pteridium aquilinum John Thomas Howell 1960-7-20 35744 Plumas Boiling Springs Lake 1798 Comment
  CAS-BOT-BC72612  Pteridium aquilinum John Thomas Howell; Gordon H. True 1969-6-23 45808 Plumas 2.6 mi. n. of Middle Fork of Feather River at Nelson Point 1310 Comment
  CAS-BOT-BC74010  Turritis glabra John Thomas Howell 1961-6-21 36612 Plumas Sierra Nevada. Greenville. 1097 Comment
  CAS-BOT-BC74011  Turritis glabra John Thomas Howell; Gordon H. True 1969-6-23 45836 Plumas Sierra Nevada. Middle Fork of Feather River at Nelson Point. 1249 Comment
  CAS-BOT-BC74012  Turritis glabra John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-10 2129 Plumas Butterfly Botanical Area and Vicinity. At spring. 1127 Comment
  CAS-BOT-BC74870  Rorippa tenerrima John Thomas Howell 1976-7-16 51896 Plumas Sierra Nevada. Spanish Creek at mouth of Wapaunsie Creek. 1097 Comment
  CAS-BOT-BC74967  Sinapis arvensis John Thomas Howell; Gordon H. True 1968-6-10 44539 Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC75024  Rorippa palustris var. hispida John Thomas Howell 1961-9-23 36849 Plumas Sierra Nevada. Indian Valley. 1082 Comment
  CAS-BOT-BC75118  Sisymbrium altissimum John Thomas Howell 1961-6-21 36677 Plumas Sierra Nevada. Greenville. 1097 Comment
  CAS-BOT-BC76208  Darlingtonia californica John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1968-6-11 2389 Plumas Sierra Nevada. On east side of Butterfly Valley. Comment
  CAS-BOT-BC76213  Darlingtonia californica John Thomas Howell 1924-8-10 614 Plumas Butterfly Valley near Quincy. Comment
  CAS-BOT-BC77732  Thelypteris nevadensis John Thomas Howell 1963-6-3 39393 Plumas Butterfly Valley Comment
  CAS-BOT-BC78092  Abies magnifica John Thomas Howell; Gordon H. True 1967-7-11 43329 Plumas Summit ridge of Mt. Hough 2194 Comment
  CAS-BOT-BC78469  Pinus contorta subsp. murrayana John Thomas Howell 1960-7-18 35502 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC7850  Carex infirminervia John Thomas Howell 1960-7-20 35759 Plumas Boiling Springs Lake. 1798 Comment
  CAS-BOT-BC79927  Antennaria microphylla John Thomas Howell 1951-6-28 27718 Plumas Eureka Peak 2255 Comment
  CAS-BOT-BC79968  Antennaria microphylla John Thomas Howell 1961-6-21 36597 Plumas Greenville 1097 Comment
  CAS-BOT-BC79969  Antennaria microphylla John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54275 Plumas Mt. Hough 2203 Comment
  CAS-BOT-BC82214  Arnica chamissonis John Thomas Howell 1960-7-22 35872 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC82497  Arnica discoidea John Thomas Howell; Gordon H. True 1969-6-23 45825 Plumas Middle Fork of the Feather River at Nelson Point 1249 Comment
  CAS-BOT-BC82499  Arnica discoidea John Thomas Howell 1976-7-15 51865 Plumas Snake Lake, about 4 miles northwest of Quincy 1219 Comment
  CAS-BOT-BC82501  Arnica discoidea John Thomas Howell 1961-6-21 36661 Plumas [Greeville] Greenville 1097 Comment
  CAS-BOT-BC84648  Anthemis cotula John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-20 2237 Plumas Butterfly Botanical Area and Vicinity, near barn in valley proper 1036 Comment
  CAS-BOT-BC87780  Streptanthus tortuosus John Thomas Howell 1951-6-26 27543 Plumas Sierra Nevada. Feather River Canyon. 853 Comment
  CAS-BOT-BC87783  Streptanthus tortuosus John Thomas Howell 1966-7-26 41998 Plumas Sierra Nevada. Injun Jim Campground at confluence of Granite Creek and North Fork of Feather River. 609 Comment
  CAS-BOT-BC87784  Streptanthus tortuosus John Thomas Howell 1976-7-16 51878 Plumas Sierra Nevada. Spanish Creek near mouth of Slate Creek. 1066 Comment
  CAS-BOT-BC87786  Streptanthus tortuosus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54315 Plumas Sierra Nevada. Near Englemine on Diamond Mountain road northeast of Taylorsville. 1219 Comment
  CAS-BOT-BC87787  Streptanthus tortuosus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54404 Plumas Sierra Nevada. Walker Plain, about 8 miles southwest of Bucks Lake on road to Oroville. 1554 Comment
  CAS-BOT-BC88050  Thelypodium crispum John Thomas Howell 1955-7-19 30797 Plumas Sierra Nevada. Vinton. 1505 Comment
  CAS-BOT-BC88639  Idahoa scapigera John Thomas Howell 1975-6-16 51162 Plumas Sierra Nevada. 2 miles northwest of Spring Garden. 1173 Comment
  CAS-BOT-BC88837  Lepidium campestre John Thomas Howell 1955-7-18 30726 Plumas Sierra Nevada. Mohawk. 1371 Comment
  CAS-BOT-BC88839  Lepidium campestre John Thomas Howell 1976-7-16 51901 Plumas Sierra Nevada. Spanish Creek at mouth of Wapaunsie Creek. 1097 Comment
  CAS-BOT-BC88840  Lepidium campestre John Thomas Howell 1976-7-16 51901 Plumas Sierra Nevada. Spanish Creek at mouth of Wapaunsie Creek. 1097 Comment
  CAS-BOT-BC8919  Delphinium depauperatum John Thomas Howell; Gordon H. True 1967-7-11 43326 Plumas about 3 miles southeast of Mt. Hough 1706 Comment
  CAS-BOT-BC8920  Delphinium depauperatum John Thomas Howell 1962-6-17 37708 Plumas Portola 1463 Comment
  CAS-BOT-BC89494  Lepidium heterophyllum John Thomas Howell; Gordon H. True 1973-7-31 50082 Plumas Sierra Nevada. Summit ridge of Thompson Peak. Diamond Range. 2362 Comment
  CAS-BOT-BC90403  Artemisia douglasiana John Thomas Howell 1960-7-18 35591 Plumas Meadow near bath house, Drakesbad 1828 Comment
  CAS-BOT-BC90404  Artemisia douglasiana John Thomas Howell 1960-8-20 36284 Plumas Kelly Camp, near Drakesbad 1615 Comment
  CAS-BOT-BC90411  Artemisia douglasiana John Thomas Howell 1961-9-23 36865 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC90412  Artemisia douglasiana John Thomas Howell 1959-9-21 34772 Plumas N. Fk. Feather River near Belden 701 Comment
  CAS-BOT-BC90416  Artemisia douglasiana John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-10 2217 Plumas Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC90569  Artemisia dracunculus John Thomas Howell 1961-9-23 36866 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC90570  Artemisia dracunculus John Thomas Howell 1959-9-25 35000 Plumas 2 miles east of Portola 1484 Comment
  CAS-BOT-BC90781  Artemisia ludoviciana subsp. ludoviciana John Thomas Howell 1961-9-23 36864 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC90782  Artemisia ludoviciana subsp. ludoviciana John Thomas Howell 1961-9-23 36838 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC90807  Artemisia michauxiana John Thomas Howell; Gordon H. True 1973-7-31 50128 Plumas on road from Janesville to Thompson Peak, Diamond Range 1981 Comment
  CAS-BOT-BC90963  Calycanthus occidentalis John Thomas Howell 1962-6-16 37636 Plumas Sierra Nevada. Lewisia Rock, Feather River North Fork. 640 Comment
  CAS-BOT-BC90964  Calycanthus occidentalis John Thomas Howell 1951-8-19 28172 Plumas Sierra Nevada. 3 miles east of Rich Bar. 853 Comment
  CAS-BOT-BC91058  Umbellularia californica John Thomas Howell 1959-9-26 35073 A Plumas Sierra Nevada. Between Belden and Lewisia Rock, Feather River Canyon 3.5 miles W of confluence of N Fork and E Branch. Comment
  CAS-BOT-BC93476  Artemisia tridentata subsp. tridentata John Thomas Howell 1959-9-24 34952 Plumas Sierra Nevada - 5 miles east of Quincy on road to Portola Comment
  CAS-BOT-BC93477  Artemisia tridentata subsp. tridentata John Thomas Howell 1959-9-24 34970 Plumas Sierra Nevada - Beckworth 1487 Comment
  CAS-BOT-BC93525  Artemisia tridentata subsp. tridentata John Thomas Howell; Gordon H. True 1969-6-23 45820 Plumas Sierra Nevada - Middle Fork of Feather River at Nelson Point 1249 Comment
  CAS-BOT-BC93978  Quercus durata John Thomas Howell 1959-9-21 34789 Plumas Rich Bar 762 Comment
  CAS-BOT-BC93981  Quercus durata John Thomas Howell 1959-9-21 34792 Plumas Rich Bar 762 Comment
  CAS-BOT-BC93982  Quercus durata John Thomas Howell 1959-9-21 34791 Plumas Rich Bar 762 Comment
  CAS-BOT-BC94264  Quercus garryana John Thomas Howell 1959-9-26 35067 Plumas near Virgilia 838 Comment
  CAS-BOT-BC97558  Symphyotrichum ascendens John Thomas Howell 1961-9-22 36814 A Plumas Greenville 1088 Comment
  CAS-BOT-BC97563  Symphyotrichum ascendens John Thomas Howell 1959-9-24 34973 Plumas Beckwourth 1487 Comment
  CAS-BOT-BC97564  Symphyotrichum ascendens John Thomas Howell 1961-9-23 36828 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC97864  Symphyotrichum eatonii John Thomas Howell 1924-8-10 613 Plumas Crescent Mills 1219 Comment
  CAS-BOT-BC97866  Symphyotrichum eatonii John Thomas Howell 1961-9-22 36814 Plumas Greenville 1088 Comment
  CAS-BOT-BC97867  Symphyotrichum eatonii John Thomas Howell 1926-7-27 2143 Plumas Near Prattville 1463 Comment
  CAS-BOT-BC97920  Symphyotrichum frondosum John Thomas Howell 1961-9-24 36914 Plumas Feather River bed, southwest of Beckwourth 1487 Comment
  CAS-BOT-BC98487  Symphyotrichum spathulatum John Thomas Howell 1966-7-29 42014 Plumas Quincy - Sierra Nevada 1036 Comment
  CAS-BOT-BC98851  Symphyotrichum spathulatum var. intermedium John Thomas Howell 1926-7-24 2103 Plumas Near Pratteville 1463 Comment
  CAS-BOT-BC98899  Symphyotrichum spathulatum var. intermedium John Thomas Howell 1961-9-25 36958 Plumas Portola - Sierra Nevada 1478 Comment
  CDA2053  Elytrigia repens J. T. Howell 1961-9-23 36826 Plumas Indian Valley. Comment
  CDA3031  Chenopodium berlandieri var. zschackei J. T. Howell 1955-7-19 30767 Plumas Beckworth. Comment
  CDA3756  Hesperis matronalis J. T. Howell, G. H. True 1967-7-11 43380 Plumas Quincy. Comment
  JEPS11845  Campanula prenanthoides John Thomas Howell 1926-7-31 2178 Plumas near Prattville 1463 Comment
  JEPS14093  Perideridia parishii subsp. latifolia John Thomas Howell 1926-7-31 2169 Plumas near Prattville 1463 Comment
  JEPS29543  Galium trifidum var. pacificum John Thomas Howell 1960-7-23 35959 Plumas Drakesbad Lassen Volcanic National Park (nr. soda spring) 1676 Comment
  JEPS29544  Galium trifidum var. pacificum John Thomas Howell 1960-7-18 35519 Plumas Drakesbad Lassen Volcanic National Park 1676 Comment
  JEPS29545  Kelloggia galioides John Thomas Howell 1960-7-17 35489 Plumas Drakesbad; Lassen Volcanic National Park 1676 Comment
  JEPS29552  Veronica peregrina subsp. xalapensis John Thomas Howell 1960-7-19 35618 Plumas Lassen Volcanic National Park, Drakesbad Drakesbad; Lassen Volcanic National Park, Drakesbad 1676 Comment
  JEPS29553  Castilleja tenuis John Thomas Howell 1960-7-18 35517 Plumas Drakesbad; Lassen Volcanic National Park 1676 Comment
  JEPS29560  Stephanomeria lactucina John Thomas Howell 1960-7-19 35681 Plumas Drakesbad Lassen Volcanic National Park 1676 Comment
  JEPS29565  Ericameria bloomeri John Thomas Howell 1960-8-20 36282 Plumas near Drakesbad (Kelly Camp; near Lassen Volcanic National Park) 1615 Comment
  JEPS29573  Helenium bigelovii John Thomas Howell 1960-7-18 35532 Plumas Drakesbad Lassen Volcanic National Park, Drakesbad 1676 Comment
  JEPS33713  Epilobium ciliatum subsp. ciliatum John Thomas Howell 1926-7-31 2177 Plumas near Prattville 1463 Comment
  JEPS33714  Clarkia rhomboidea John Thomas Howell 1926-7-20 2081 Plumas near Prattville 1463 Comment
  JEPS33715  Gayophytum John Thomas Howell 1926-7-23 2094 Plumas near Prattville 1463 Comment
  JEPS36480  Crepis intermedia John Thomas Howell 1926-7-20 2087 Plumas near Prattville 1463 Comment
  JEPS36581  Hieracium albiflorum John Thomas Howell 1926-7-20 2084 Plumas near Prattville 1463 Comment
  JEPS40662  Horkelia fusca subsp. tenella John Thomas Howell 1926-7-26 2128 Plumas near Prattville; Potentilla 1371 Comment
  JEPS40825  Symphyotrichum spathulatum J. Thomas Howell 1926-7-24 2103 Plumas near Prattville Comment
  JEPS55982  Phacelia hastata subsp. compacta John Thomas Howell 1955-7-19 30808 Plumas Vinton Sierra Valley 1505 Comment
  JEPS58959  Symphyotrichum spathulatum J. Thomas Howell 1961-9-25 36958 Plumas Portola Sierra Nevada 1478 Comment
  JEPS62624  Packera subnuda John Thomas Howell, Gordon True, Walter and Irja Knight 1968-6-11 2392 Plumas Butterfly Valley Sierra Nevada (wet area on e side) Comment
  JEPS6527  Galium triflorum John Thomas Howell 1926-7-23 2093 Plumas near Prattville 1463 Comment
  JEPS75232  Ericameria parryi var. nevadensis John Thomas Howell 1959-9-24 34960 Plumas near Blairsden 1341 Comment
  JEPS75242  Ericameria parryi var. nevadensis John Thomas Howell 1959-9-24 34961 Plumas near Blairsden 1341 Comment
  JEPS75245  Chrysothamnus viscidiflorus subsp. viscidiflorus John Thomas Howell 1974-6-1 34968 Plumas near Beckwourth; Sierra Valley 1478 Comment
  JEPS75253  Ericameria nauseosa var. speciosa John Thomas Howell 1959-9-24 34962 Plumas near Blairsden; Sierra Nevada 1341 Comment
  JEPS75257  Ericameria nauseosa var. speciosa John Thomas Howell 1959-9-25 35021 Plumas summit of Beckwourth Pass Sierra Nevada, Beckwourth Pass 1588 Comment
  JEPS75282  Ericameria parryi var. nevadensis John Thomas Howell 1959-9-24 34976 Plumas Beckwourth 1493 Comment
  JEPS75283  Ericameria parryi var. nevadensis John Thomas Howell 1961-9-25 36964 Plumas Portola Sierra Nevada 1478 Comment
  JEPS9095  Castilleja applegatei subsp. pinetorum John Thomas Howell 1951-6-27 27626 Plumas Jamison Creek Sierra Nevada 1828 Comment
  NY399808  Eriogonum ursinum J. T. Howell 1951-6-29 27747 Plumas Spring Garden Creek 1158.2 Comment
  NY627327  Penstemon newberryi var. newberryi J. T. Howell 1967-7-11 43351 Plumas Summit ridge of Mt. Hough, (a metamorphic area) 2194.6 Comment
  NY651260  Penstemon rydbergii var. oreocharis J. T. Howell 1981-6-23 54177 Plumas Long Valley at road to Maxwell Mine 1633.7 Comment
  NY762727  Salix melanopsis J. T. Howell 1976-7-16 51897 Plumas On flood plain of Spanish Creek at mouth of Wapaunsie Creek 1097.3 Comment
  NY790347  Keckiella lemmonii J. T. Howell 1951-8-19 28174 Plumas Near Paxton 914.4 Comment
  NY790348  Keckiella lemmonii J. T. Howell 1966-7-26 42001 Plumas Injun Jim Campground at confluence of Granite Creek and North Fork of Feather River 609.6 Comment
  NY790349  Keckiella lemmonii J. T. Howell 1976-7-16 51915 Plumas Just east of Bucks Summit on road to Meadow Valley 1645.9 Comment
  POM196461  Plagiobothrys mollis J. T. Howell 1926-7-30 2156 Plumas Prattville. 1372 Comment
  RSA128974  Salix lasiolepis var. sandbergii J. T. Howell 1951-8-19 28171 Plumas 3 miles E of Rich Bar. 854 Comment
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Jun 4 2009
  RSA196478  Agrostis stolonifera J. T. Howell 1926-7-26 2135 Plumas Near Prattville 1372 Comment
  RSA201259  Madia glomerata J. T. Howell 1960-7-18 35601 Plumas Drakesbad. Lassen Volcanic National Park. 1677 Comment
  RSA201262  Achnatherum occidentale subsp. occidentale J. T. Howell 1960-7-17 35485 Plumas Drakesbad; Lassen Volcanic National Park. 1677 Comment
  RSA201264  Achnatherum occidentale subsp. pubescens J. T. Howell 1960-7-20 35787 Plumas Between boiling Springs Lake and Terminal Geyser. 1860 Comment
  RSA201275  Carex aurea J. T. Howell 1960-7-18 35508 Plumas Drakesbad 1677 Comment
  RSA201279  Arceuthobium americanum J. T. Howell 1959-9-22 34866 Plumas Lassen Volcanic National Park. On Pinus Murrayana, Drakesbad. 1677 Comment
  RSA201286  Arctostaphylos nevadensis J. T. Howell 1959-9-23 34876 Plumas 3 mi. south of Lassen Park boundary, on road to Chester. 1829 Comment
  RSA201295  Veratrum californicum J. T. Howell 1960-8-20 36278 Plumas Drakesbad 1677 Comment
  RSA201296  Perideridia howellii J. T. Howell 1960-7-24 35975 Plumas Lassen Volcanic National Park, Drakesbad 1677 Comment
  RSA201299  Juncus occidentalis J. T. Howell 1960-7-20 35753 Plumas Boilings Springs Lake; Lassen Volcanic National Park 1799 Comment
  RSA201302  Achnatherum occidentale subsp. californicum J. T. Howell 1960-7-20 35787 Plumas Between boiling Springs Lake and Terminal Geyser. 1860 Comment
  RSA201312  Bromus orcuttianus J. T. Howell 1960-8-20 36274 Plumas Drakesbad 1677 Comment
  RSA201317  Cuscuta californica J. T. Howell 1960-7-19 35689 Plumas Drakesbad 1677 Comment
  RSA201318  Phacelia racemosa J. T. Howell 1960-7-20 35736 Plumas Boiling Springs Lake to Drakesbad. Lassen Volcanic National Park. 1677 Comment
  RSA201320  Gnaphalium palustre J. T. Howell 1959-9-22 34865 Plumas Lassen Volcanic National Park: Drakesbad. 1677 Comment
  RSA201321  Ericameria bloomeri J. T. Howell 1960-8-20 36282 Plumas Kelly Camp, near Drakesbad. 1616 Comment
  RSA201324  Chrysolepis sempervirens J. T. Howell 1960-7-20 35783 Plumas Between boiling Springs Lake and Terminal Geyser. 1860 Comment
  RSA201326  Chrysothamnus nauseosus subsp. albicaulis J. T. Howell 1960-8-20 36283 Plumas Kelly Camp, near Drakesbad. 1616 Comment
  RSA201329  Carex brainerdii J. T. Howell 1960-7-22 35912 Plumas Drakesbad. Devils kitchen 1677 Comment
  RSA201335  Salix lemmonii J. T. Howell 1960-7-20 35724 Plumas Drakesbad. 1677 Comment
  RSA201339  Arctostaphylos nevadensis J. T. Howell 1959-9-23 34876 Plumas 3 mi. south of Lassen Park boundary, on road to Chester. 1829 Comment
  RSA201340  Lotus unifoliolatus J. T. Howell 1960-7-18 35568 Plumas Drakesbad 1677 Comment
  RSA201341A  Navarretia intertexta subsp. propinqua J. T. Howell 1960-7-18 35599 Plumas Wooded meadow borders. Drakesbad. 1677 Comment
  RSA201345  Achnatherum occidentale subsp. occidentale J. T. Howell 1960-7-19 35670 Plumas Drakesbad. 1677 Comment
  RSA201346  Agrostis exarata J. T. Howell 1960-7-22 35883 Plumas Drakesbad. Devils kitchen 1677 Comment
  RSA201350  Sanicula tuberosa J. T. Howell 1960-7-22 35918 Plumas Drakesbad. Devils kitchen 1677 Comment
  RSA201354  Bromus marginatus J. T. Howell 1960-7-20 35760 Plumas Boiling Springs Lake 1799 Comment
  RSA201355  Panicum capillare J. T. Howell 1960-7-20 35728 Plumas Drakesbad; Lasses Volcanic National Park 1677 Comment
  RSA201356  Poa palustris J. T. Howell 1960-8-20 36277 Plumas Drakesbad 1677 Comment
  RSA201362  Deschampsia danthonioides J. T. Howell 1960-7-19 35619 Plumas Lassen Volcanic National Park; Drakesbad 1677 Comment
  RSA201363  Phacelia racemosa J. T. Howell 1960-7-20 35736 Plumas Boiling Springs Lake to Drakesbad. Lassen Volcanic National Park. 1677 Comment
  RSA201364  Panicum capillare J. T. Howell 1969-9-22 34868 Plumas Drakesbad; Lasses Volcanic National Park 1738 Comment
  RSA201367  Plagiobothrys scouleri var. hispidulus J. T. Howell 1960-7-19 35613 Plumas Drakesbad 1677 Comment
  RSA244739  Viola parnassifolia J. T. Howell 1967-6-23 42705 Plumas Butterfly Valley. Type locality. 1037 Comment
  RSA263839  Alnus incana subsp. tenuifolia J. T. Howell 1959-9-22 34833 Plumas Wolf Creek. 1372 Comment
  RSA263841  Alnus rhombifolia J. T. Howell, Gordon True 1969-6-23 45817 Plumas Middle Fork of Feather River at Nelson Point. 1250 Comment
  RSA263849  Chrysothamnus nauseosus subsp. albicaulis J. T. Howell 1974-9-20 50902 Plumas Near Spring Garden 1159 Comment
  RSA26612  Eleocharis obtusa var. engelmannii J. T. Howell 1951-8-20 28212 Plumas Genesee 1128 Comment
  RSA29125  Lupinus apertus J. T. Howell 1951-6-27 27606 Plumas Jamison Creek. 1890 Comment
  RSA29208  Lotus argophyllus var. fremontii J. T. Howell 1951-6-29 27767 Plumas Feather River Canyon 549 Comment
  RSA29538  Trifolium productum J. T. Howell 1951-6-28 27690 Plumas Eureka Peak 1982 Comment
  RSA29854  Juncus mexicanus J. T. Howell 1951-6-27 27570 Plumas Johnsville; Sierra Nevada 1585 Comment
  RSA299148  Achnatherum occidentale subsp. occidentale J. T. Howell 1961-6-21 36700 Plumas Greenville 1098 Comment
  RSA299153  Elymus glaucus J. T. Howell 1975-7-22 51373 Plumas 2 miles northwest of Spring Garden 1174 Comment
  RSA299235  Brickellia californica J. T. Howell 1961-9-23 36895 Plumas Englemine 1098 Comment
  RSA299268  Elymus multisetus J. T. Howell 1955-7-19 30779 Plumas Beckwourth; Sierra Nevada 1494 Comment
  RSA299502  Penstemon deustus J. T. Howell, Walter Knight, I. Knight, Gordon H. True Jr. 1967-7-10 2163 Plumas Mouth of Butterfly Creek, Butterfly Botanical Area and vicinity. 884 Comment
  RSA299615  Elymus glaucus J. T. Howell 1962-6-17 37688 Plumas Sierra Nevada; Butterfly Valley 1037 Comment
  RSA299619  Eragrostis mexicana subsp. virescens J. T. Howell 1977-8-11 52669 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir 1677 Comment
  RSA300137  Poa secunda J. T. Howell 1967-6-23 42672 Plumas Canyon of Butterfly Creek just above its mouth 976 Comment
  RSA300157  Poa secunda J. T. Howell 1962-6-17 37705 Plumas Portola 1463 Comment
  RSA300165  Poa trivialis J. T. Howell, Gordon H. True 1968-6-10 44551 Plumas Quincy 1037 Comment
  RSA300172  Poa palustris J. T. Howell 1961-9-23 36852 Plumas Indian Valley; Sierra Nevada 1082 Comment
  RSA300180  Festuca rubra J. T. Howell, Gordon H. True 1969-6-23 45841 Plumas Quincy. 1037 Comment
  RSA30025  Cystopteris fragilis J. T. Howell 1951-6-27 27635 Plumas Jamison Creek 1829 Comment
  RSA30591  Lupinus arbustus subsp. silvicola J. T. Howell 1951-6-28 27699 Plumas Eureka Peak. 2134 Comment
  RSA309604  Poa sierrae J. T. Howell 1967-6-23 42740 Plumas 3.5 miles southwest of Belden, Feather River Canyon 610 Comment
  RSA35773  Agrostis scabra J. T. Howell 1960-7-20 s.n. Plumas Boilings Springs Lake; Lassen Volcanic National Park 1799 Comment
  RSA502885  Salix laevigata J. T. Howell, T. C. Fuller, G. D. Barbe 1981-6-25 54338 Plumas 2.8 miles north-northeast of Englemine on Diamond Mt. Road. 1341 Comment
  RSA512824  Ludwigia palustris var. pacifica J. T. Howell 1976-7-15 51842 Plumas Snake Lake, about 4 miles northwest of Quincy. 1220 Comment
  RSA517181  Ludwigia palustris var. americana J. T. Howell 1961-9-23 36845 Plumas Indian Valley; Sierra Nevada 1082 Comment
  RSA517191  Rhamnus rubra J. T. Howell 1975-6-16 51134 Plumas Transition zone coniferous forest, 2 miles NW of Spring Garden 1174 Comment
  RSA518946  Rhamnus purshiana J. T. Howell 1959-9-24 34935 Plumas Butterfly Creek near mouth Comment
  RSA518963  Rhamnus rubra J. T. Howell 1973-7-10 49731 Plumas Open yellow pine forest near Greenville. 1098 Comment
  RSA550549  Arctostaphylos canescens J. T. Howell 1976-7-16 51916 Plumas Just east of Bucks Summit on road to Meadow Valley. 1646 Comment
  RSA551252  Rhamnus J. T. Howell 1976-7-20 52038 Plumas transition zone forest at S end of Lake Almanor 1372 Comment
  RSA551253  Rhamnus J. T. Howell 1976-7-20 52037 Plumas transition zone forest at S end of Lake Almanor 1372 Comment
  RSA66725  Scirpus congdonii J. T. Howell 1951-6-27 27602 Plumas McRae Meadow. 1982 Comment
  RSA800293  Poa sierrae J. T. Howell, Gordon H. True 1969-4-8 45483 Plumas 3.5 mi southwest of Belden, Feather River Canyon. 610 Comment
  RSA85836  Marsilea vestita J. T. Howell 1926-7-30 2159 Plumas Lake Almanor Comment
  RSA88079  Eriodictyon californicum J. T. Howell 1951-6-26 27554 Plumas Near Keddie. 976 Comment
  RSA88082  Nama lobbii J. T. Howell 1951-6-28 27697 Plumas Eureka Peak. 1982 Comment
  RSA88107  Leymus cinereus J. T. Howell 1951-8-21 28237 Plumas Near Clio; Sierra Nevada Comment
  RSA88108  Vulpia microstachys var. ciliata J. T. Howell 1951-6-28 27669 Plumas Jamison Creek. 1585 Comment
  RSA88112  Phalaris arundinacea J. T. Howell 1951-8-21 28236 Plumas Mohawk 1372 Comment
  RSA88117  Achnatherum lemmonii var. lemmonii J. T. Howell 1951-6-29 27745 Plumas Spring Garden Creek. 1159 Comment
  RSA88127  Calamagrostis koelerioides J. T. Howell 1951-6-26 27537 Plumas Feather River Canyon; Sierra Nevada. 854 Comment
  RSA88185  Agrostis pallens J. T. Howell 1951-6-28 27686 Plumas Eureka Peak 1982 Comment
  RSA88391  Mimulus nanus var. mephiticus J. T. Howell 1951-6-29 27753 Plumas Feather River Canyon 549 Comment
  RSA88404  Sium suave J. T. Howell 1951-8-20 28217 Plumas Genesee 1128 Comment
  RSA88405  Pteryxia terebinthina J. T. Howell 1951-6-28 27704 Plumas Eureka Peak. 2195 Comment
  RSA88415  Collinsia torreyi J. T. Howell 1951-6-28 27703 Plumas Eureka Peak. 2195 Comment
  RSA88420  Penstemon gracilentus J. T. Howell 1951-6-28 27695 Plumas Eureka Peak 1982 Comment
  RSA88431  Leucophysalis nana J. T. Howell 1951-6-27 27615 Plumas Jamison Creek 1829 Comment
  RSA88448  Eryngium alismifolium J. T. Howell 1951-8-20 28220 Plumas Indian Valley 1098 Comment
  RSA88450  Heterocodon rariflorum Donna Howell 1951-6-28 27675 Plumas Jamison Creek. 1585 Comment
  RSA88490  Arabis breweri J. T. Howell 1951-6-28 27665 Plumas Jamison Creek Canyon 1585 Comment
  RSA88510  Rhamnus tomentella subsp. crassifolia J. T. Howell 1951-8-19 28167 Plumas Serpentine near Rich Bar. 793 Comment
  RSA88554  Eriogonum umbellatum var. polyanthum J. T. Howell 1951-6-29 27748 Plumas Spring Garden Creek. 1159 Comment
  RSA88555  Horkelia fusca subsp. parviflora J. T. Howell 1951-6-27 27594 Plumas McRae Meadow. 1982 Comment
  RSA88596  Eriogonum umbellatum var. nevadense J. T. Howell 1951-6-27 27634 Plumas Jamison Creek 1829 Comment
  RSA88609  Lithophragma tenellum John T. Howell 1951-6-28 27691 Plumas Eureka Peak 1982 Comment
  SBBG103605  Arctostaphylos mewukka subsp. truei J. T. Howell 1976-4-2 51570 Plumas Injun Jim Cmpgrd, North Fk Feather River 609 Comment
  SBBG115897  Achnatherum nelsonii J. T. Howell 1962-6-18 37774 Plumas Sierra Valley near Beckwourth 1487 Comment
  SBBG115916  Bromus hordeaceus J. T. Howell 1962-6-18 37754 Plumas Sierra Valley near Beckwourth 1463 Comment
  SBBG115939  Bromus japonicus J. T. Howell 1977-6-24 52417 Plumas near confluence of Spanish and Indian Crks 929 Comment
  SBBG115949  Achnatherum occidentale subsp. pubescens J. T. Howell 1955-7-19 30754 Plumas Beckwourth 1493 Comment
  SBBG115955  Bromus carinatus var. marginatus J. T. Howell, G. H. True 1973-7-31 50104 Plumas Thompson Pk, Diamond Range 2194 Comment
  SBBG47336  Hesperis matronalis J. T. Howell 1963-6-3 Plumas Quincy 1036 Comment
  SBBG47390  Marsilea vestita J. T. Howell 1961-9-25 36949 Plumas Feather River bed, Portola 1478 Comment
  SBBG50202  Tetradymia canescens J. T. Howell 1959-9-25 Plumas summit of Beckwourth Pass 1588 Comment
  SBBG50275  Vaccinium cespitosum J. T. Howell 1963-6-3 Plumas Butterfly Valley 1036 Comment
  SBBG50454  Ericameria nauseosa var. speciosa J. T. Howell 1974-9-20 50902 Plumas near Spring Garden 1158 Comment
  SD103798  Oenothera tanacetifolia Darley Howe 1978-7-16 Plumas Along highway 49, 5 miles north of Loyalton. Comment
  SD130384  Carex whitneyi John Thomas Howell 20-23 Jun 1977 52407 Plumas Sierra Nevada Mountains; desiccated strand below the high water line on the peninsula of Lake Almanor. 1372 Comment
  SD130446  Sidalcea glaucescens John Thomas Howell 1962-6-17 37678 Plumas Butterfly Valley 1036 Comment
  SD130487  Epilobium ciliatum subsp. ciliatum John Thomas Howell 1976-7-15 51859 Plumas Snake Lake, ca. 4.0 miles northwest of Quincy. 1219 Comment
  SD130954  Carex angustata John Thomas Howell, Gordon H. True 1969-6-23 45829 Plumas Sierra Nevada; mixed coniferous forest on Middle Fork of Feather River at Nelson Point. 1250 Comment
  SD134031  Erigeron lassenianus John Thomas Howell 1967-7-11 43278 Plumas 2 miles from Quincy Junction on road to Mt. Hough. 1220 Comment
  SD134067  Scirpus microcarpus John Thomas Howell 1976-7-15 51855 Plumas Snake Lake, about 4 miles northwest of Quincy. 1219 Comment
  SD147572  Lupinus grayi John Thomas Howell 1966-7-29 42010 Plumas Quincy 1035 Comment
  SD147626  Luzula parviflora John Thomas Howell, T. C. Fuller, G. D. Barbe 1981-6-26 54367 Plumas Sierra Nevada, 0.75 miles northeast of Bucks Summit, on road to Quincy. 1600 Comment
  SD149108  Rhamnus John Thomas Howell 1976-7-20 52037 Plumas Transition zone forest at south end of Lake Almanor 1372 Comment
  SD149109  Rhamnus John Thomas Howell 1976-7-20 52038 Plumas Transition zone forest at south end of Lake Almanor 1372 Comment
  SD149112  Rhamnus John Thomas Howell 1976-7-14 51824 Plumas American Valley near Qunicy on road to Qunicy Junction 1036 Comment
  SD149120  Leptosiphon filipes John Thomas Howell 1967-6-23 42720 Plumas Canyon of the East branch of Feather River, 2.0 miles east of Twain. Comment
  SD149143  Monardella sheltonii John Thomas Howell 1975-7-22 51349 Plumas 2 miles northwest of Spring Garden 1173 Comment
  SD149145  Monardella odoratissima subsp. pallida John Thomas Howell 1975-7-22 51370 Plumas 2.0 miles northwest of Spring Garden. 1173 Comment
  SD149167  Arctostaphylos John Thomas Howell, T. C. Fuller, and G. D. Barbe 1981-6-24 54265 Plumas Rocky summit ridge, Mt. Hough. 2210 Comment
  SD149168  Arctostaphylos John Thomas Howell 1976-7-16 51916 Plumas Just east of Bucks Summit on road to Meadow Valley. 1650 Comment
  SD149192  Sparganium emersum John Thomas Howell 1961-9-25 36939 Plumas Feather River bed, Portola 1477 Comment
  SD50704  Aconitum columbianum Darley F. Howe 1959-8-3 2787 Plumas 30 miles of Qunicy [sic] 1372 Comment
  SD50706  Alnus tenuifolia Darley F. Howe 1959-8-3 2785 Plumas 30 miles north of Quincy 1370 Comment
  SD50708  Ericameria parryi var. latior Darley F. Howe 1959-8-3 2782 Plumas 42 miles north of Quincy on Highway 89. 1370 Comment
  SD51225  Solidago velutina subsp. californica Darley F. Howe 1960-9-20 2984 Plumas North fork of Feather River, 41 miles from Oroville. 609 Comment
  SD61097  Juncus nevadensis Darley F. Howe 1964-7-29 Plumas Near Gold Lake Lodge, Plumas National Forest. 1981 Comment
  SD61132  Silene douglasii Darley F. Howe 1964-7-29 3891 Plumas Near Gold Lake Lodge, Plumas National Forest. 2010 Comment
  SD61133  Potentilla breweri D. F. Howe 1964-7-29 Plumas Near Gold Lake Lodge, Plumas Nat. Forest 2042 Comment
  SD71001  Carex brainerdii John Thomas Howell 1960-7-17 35484 Plumas Lassen Volcanic National Park; Drakesbad; dry coniferous forest. 1676 Comment
  SD71003  Carex lemmonii John Thomas Howell 1960-7-23 35946 Plumas Lassen Volcanic National Park; Drakesbad; meadow near soda spring. 1676 Comment
  SD71004  Veratrum californicum John Thomas Howell 1960-8-20 36278 Plumas Lassen Volcanic National Park, wet meadow, Drakesbad. 1676 Comment
  SD71008  Agrostis scabra John Thomas Howell 1960-7-20 35722 Plumas Lassen Volcanic National Park, near steam vents and hot springs, Boiling Springs Lake. 1798 Comment
  SD71009  Panicum capillare var. occidentale John Thomas Howell 1960-7-20 35728 Plumas Lassen Volcanic Park, Drakesbad, cool wet shaded place 1676 Comment
  SD71013  Arceuthobium americanum John Thomas Howell 1959-9-22 34866 Plumas Drakesbad 1676 Comment
  SD71019  Arctostaphylos nevadensis John Thomas Howell 1959-9-23 Plumas Road to Chester, 3 mi. S of Lassen Park boundary 1830 Comment
  SD71030  Carex angustata John Thomas Howell 1960-7-23 35945 Plumas Lassen volcanic National Park; Drakesbad; meadow near soda spring. 1676 Comment
  SD72047  Astragalus lentiformis John Thomas Howell 1962-6-17 37702 Plumas Portola, with sagebrush under Jeffrey pines 1463 Comment
  SDSU11954  Lilium kelleyanum D. F. Howe 1964-7-29 3890 Plumas Near Gold Lake Lodge, Plumas National Forest 2012 Comment
  SDSU3800  Cirsium vulgare D. F. Howe 1959-8-2 2781 Plumas Meadow at Quincy. 1067 Comment
  SDSU3894  Ericameria bloomeri D. F. Howe 1960-9-21 2989 Plumas 9 miles from junction with #89 on road to Susanville, east side of Lake Almanor. 1463 Comment
  SDSU3938  Erigeron inornatus D. F. Howe 1960-9-21 2992 Plumas 6 miles north of Greenville on #89. 1219 Comment
  SDSU4769  Alnus incana subsp. tenuifolia D. F. Howe 1959-8-3 2785 Plumas 30 mi. north of Quincy. 1372 Comment
  SDSU533  Solidago spectabilis D. F. Howe 1961-8-4 3133 Plumas East side of Lake Almanor, 6 miles from junction with #89 at south end of lake. 1372 Comment
  SDSU6186  Artemisia douglasiana D. F. Howe 1960-9-21 2990 Plumas 6 miles north of Greenville on #89. 1219 Comment
  SDSU9263  Spiraea douglasii D. F. Howe 1963-8-7 2991 Plumas 6.0 miles N of Greenville on #89. 1219 Comment
  SDSU9909  Aconitum columbianum D. F. Howe 1959-8-3 2787 Plumas 30.0 miles N of Qunicy. 1372 Comment
  SEINET10380186  Carex brainerdii John Thomas Howell, Gordon H. True 1967-5-7 42186 Plumas Sierra Nevada, Injin Jim Campground [now James Lee Campground] at confluence of Granite Creek and North Fork of Feather River Comment
  SEINET13344652  Carex brainerdii J. T. Howell, Gordon H. True 1967-5-7 42186 Plumas Sierra Nevada, Injin Jim Campground [now James Lee Campground] at confluence of Granite Creek and North Fork of Feather River 610 Comment
  SEINET224357 Image available Artemisia cana John Thomas Howell 1959-9-24 Plumas Plumas County: Beckwourth. 1487 Comment
  SEINET224359  Artemisia cana John Thomas Howell 1959-9-24 Plumas Plumas County: Sierra Valley near Beckwourth. At Beckwourth airfield 1 mile east of town. 1494 Comment
  SEINET224360  Artemisia cana John Thomas Howell 1959-9-25 Plumas Plumas County: Portola. 1478 Comment
  SEINET7295175 Image available Torreyochloa pallida var. pauciflora John Thomas Howell 1961-1 36934 Plumas Feather River bed, Portola 1478 Comment
  SEINET7295284 Image available Vulpia microstachys var. pauciflora John Thomas Howell 1967-1 42669 Plumas Canyon of Butterfly Creek just above its mouth 975 Comment
  SEINET7297650 Image available Glyceria borealis John Thomas Howell 1961-1 36953 Plumas Feather River bed, Portola 1478 Comment
  UC1026457  Collinsia torreyi var. wrightii John Thomas Howell 1951-6-28 27703 Plumas Eureka Peak 2255 Comment
  UC1042350  Carex gigas John Thomas Howell 1951-6-26 27535 Plumas Feather River Canyon Sierra Nevada 853 Comment
  UC421643  Plagiobothrys mollis John Thomas Howell 1926-7-30 2156 Plumas Prattville 1371 Comment
  UC971755  Linanthus harknessii J. T. Howell 1926-7-30 2168 Plumas Lake Almanor Comment
  UCD100239  Polygonum douglasii John Thomas Howell 1960-7-18 35569 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD100241  Polygonum douglasii John Thomas Howell 1960-7-19 35698 Plumas Lassen Volcanic National Park, Drakesbad. 1676 Comment
  UCD100503  Eriogonum nudum John Thomas Howell 1955-7-20 30853 Plumas Mohawk. 1371 Comment
  UCD101378  Eriogonum umbellatum var. nevadense John Thomas Howell; Gordon H. True 1973-7-31 50112 Plumas summit ridge of Thompson Peak, in areas of volcniac rock, Diamond Range. 2194 Comment
  UCD101479  Rumex triangulivalvis John Thomas Howell 1960-7-19 35624 Plumas Drakesbad. 1676 Comment
  UCD101523  Eriogonum vimineum John Thomas Howell 1955-7-19 30807 Plumas Vinton. 1508 Comment
  UCD101527  Eriogonum vimineum John Thomas Howell; Gordon True, Walter Knight, Irja Knight 1967-7-10 2184 Plumas Butterfly Botanical Area and Vicinity; mouth of Butterfly Creek. 883 Comment
  UCD101906  Arceuthobium americanum John Thomas Howell 1959-9-22 34866 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD106106  Navarretia capillaris John Thomas Howell 1960-7-18 35600 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD109971  Alnus incana subsp. tenuifolia John Thomas Howell 1959-9-24 34936 Plumas Butterfly Creek, near mouth. Comment
  UCD110008  Alnus rhombifolia John Thomas Howell 1959-9-24 34943 Plumas Spanish Creek at mouth of Butterfly Creek. 883 Comment
  UCD111052  Viola macloskeyi John Thomas Howell 1960-7-23 35958 Plumas Lassen Volcanic National Park. Drakesland, near Soda Spring. 1676 Comment
  UCD114066  Spiraea splendens John Thomas Howell 1951-6-26 s.n. Plumas Jasmine Creek. 1828 Comment
  UCD115122  Hirschfeldia incana John Thomas Howell; Gordon H. True 1968-6-10 44541 Plumas Quincy. 1036 Comment
  UCD118767  Leptosiphon harknessii John Thomas Howell 1960-7-18 35556 Plumas Lassen Volcanic National Park, Drakesbad. 1676 Comment
  UCD120831  Plagiobothrys hispidulus John Thomas Howell 1960-7-19 35613 Plumas Drakesbad, Lassen Volcanic National Park. 1676 Comment
  UCD121130  Garrya fremontii John Thomas Howell 1959-9-26 35043 Plumas Near Keddie. 1005 Comment
  UCD121134  Garrya fremontii John Thomas Howell 1961-9-23 36891 Plumas Englemine. 1097 Comment
  UCD126251  Cuscuta californica John Thomas Howell 1960-7-18 35606 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD127866  Perideridia parishii subsp. latifolia John Thomas Howell 1960-7-20 35720 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD128048  Sanicula tuberosa John Thomas Howell 1960-7-19 35692 Plumas Lassen Volcanic National Park, Drakesbad. 1676 Comment
  UCD130278  Chaenactis douglasii var. douglasii John Thomas Howell 1960-8-20 36285 Plumas Kelly Camp, near Drakesbad. 1615 Comment
  UCD131487  Ericameria nauseosa var. speciosa John Thomas Howell 1959-9-24 34962 Plumas Near Blairsden. 1341 Comment
  UCD131488  Ericameria nauseosa var. speciosa John Thomas Howell 1960-8-20 36283 Plumas Kelly Camp, near Drakesbad. 1615 Comment
  UCD131546  Ericameria parryi var. nevadensis John Thomas Howell 1959-9-24 34967 Plumas Sierra Valley near Beckworth. 1478 Comment
  UCD132414  Gnaphalium palustre John Thomas Howell 1960-7-18 35540 Plumas Lassen Volcanic National Park, Drakesbad. 1676 Comment
  UCD136780  Tetradymia canescens John Thomas Howell 1955-7-19 30750 Plumas Beckwourth. 1493 Comment
  UCD139934  Veratrum californicum var. californicum John Thomas Howell 1960-8-20 36278 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD140098  Carex angustata John Thomas Howell 1960-7-23 35962 Plumas Drakesbad, Lassen Volcanic National Park. Dream Lake. 1676 Comment
  UCD140184  Carex brainerdii John Thomas Howell 1960-7-22 35911 Plumas Devils Kitchen to Drakesbad. Lassen Volcanic National Park. 1676 Comment
  UCD140238  Carex cusickii John Thomas Howell 1960-7-23 35936 Plumas Lassen Volcanic National Park, Drakesbad. 1676 Comment
  UCD140409  Carex jonesii John Thomas Howell 1960-7-22 35877 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD140472  Carex lemmonii John Thomas Howell 1960-7-23 35946 Plumas Lassen Volcanic National Park, Drakesbad. Near Soda Spring. 1676 Comment
  UCD140474  Carex lemmonii John Thomas Howell 1960-7-18 35513 Plumas Lassen Volcanic National Park, Drakesbad. Near Soda Spring. 1676 Comment
  UCD140715  Carex pachystachya John Thomas Howell 1960-7-23 35958 B Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD140785  Carex rossii John Thomas Howell 1960-7-22 35913 Plumas Devils Kitchen to Drakesbad. Lassen Volcanic National Park. 1676 Comment
  UCD140911  Carex subfusca John Thomas Howell 1960-7-18 35565 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD140974  Carex vesicaria John Thomas Howell 1960-7-19 35626 Plumas Drakesbad. Lassen Volcanic National Park. 1676 Comment
  UCD141196  Cyperus niger John Thomas Howell 1960-8-20 36275 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD141383  Juncus bufonius John Thomas Howell 1960-7-19 35705 Plumas Drakesbad, Lassen Volcanic National Park. 1676 Comment
  UCD141415  Juncus bufonius var. occidentalis John Thomas Howell 1960-7-21 35810 Plumas Lassen Volcanic National Park. Near Terminal Geyser. 1828 Comment
  UCD141509  Juncus effusus subsp. pacificus John Thomas Howell 1960-7-20 35770 Plumas Boiling Springs Lake. Lassen Volcanic National Park. 1798 Comment
  UCD45420  Quercus chrysolepis John Thomas Howell; Gordon H. True, Walter Knight and Irja Knight 1969-6-24 2443 Plumas From vicinity of mouth of Butterfly Creek at el. ca. 2900 ft., Plumas County. 883 Comment
  UCD45903  Quercus durata var. durata John Thomas Howell 1959-9-21 34789 Plumas Plumas Co. El. 2500 ft. 762 Comment
  UCD45906  Quercus durata var. durata John Thomas Howell 1959-9-21 34791 Plumas El. 2500 feet, Plumas County. 762 Comment
  UCD45927  Quercus durata var. durata John Thomas Howell 1951-8-19 28168 Plumas Plumas County. 792 Comment
  UCD46126  Quercus garryana var. semota John Thomas Howell 1951-6-26 27548 Plumas Feather River Canyon, Plumas Co. 853 Comment
  UCD48383  Navarretia divaricata John Thomas Howell 1960-7-18 35571 Plumas Meadow border, Drakesbad, Plumas County. 1676 Comment
  UCD50091  Schoenoplectus americanus John Thomas Howell 1959-9-22 34867 Plumas On hot spring terraces, Drakesbad, Plumas County. 1737 Comment
  UCD50604  Achnatherum lemmonii John Thomas Howell 1962-6-17 37710 Plumas Portola, Plumas County. 1463 Comment
  UCD51299  Achnatherum webberi John Thomas Howell; Gordon H. True 1973-7-31 50122 Plumas Canadian Zone forest, summit ridge of Thompson Peak, Diamond Range. 2133 Comment
  UCD51873  Agrostis capillaris John Thomas Howell 1975-6-15 51129 Plumas Quincy. 1036 Comment
  UCD51940  Arctostaphylos truei John Thomas Howell 1976-4-2 51572 Plumas Injun Jim Campground, North Fork Feather River, Plumas County. 609 Comment
  UCD51941  Arctostaphylos truei John Thomas Howell 1976-4-2 51570 Plumas Injun Jim Campground, North Fork Feather River, Plumas County. 609 Comment
  UCD52193  Arctostaphylos viscida John Thomas Howell; Gordon H. True 1967-7-11 43286 Plumas 2 miles from Quincy Junction on road to Mt. Hough, Plumas County. 1219 Comment
  UCD52203  Arctostaphylos viscida John Thomas Howell; Gordon H. True 1967-5-8 42190 Plumas Near the spring in the Butterfly Botanical Area. Plumas County. 1097 Comment
  UCD52435  Agrostis exarata John Thomas Howell 1926-7-26 2126 Plumas near Prattville. 1371 Comment
  UCD52646  Arctostaphylos viscida John Thomas Howell 1976-4-2 51578 Plumas In the Transition Life Zone, 2 miles northwest of Spring Garden, Plumas County. 1173 Comment
  UCD53341  Agrostis scabra John Thomas Howell 1960-7-20 35772 Plumas Boiling Springs Lake. 1798 Comment
  UCD55898  Alopecurus geniculatus John Thomas Howell 1960-7-22 35882 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD56026  Arrhenatherum elatius John Thomas Howell 1975-7-22 51346 Plumas Sierra Nevada. Quincy Junction near Quincy. 1036 Comment
  UCD56778  Beckmannia syzigachne John Thomas Howell 1962-6-18 37747 Plumas Plants of the Sierra Nevada. Sierra Valley near Beckwourth. 1487 Comment
  UCD58433  Bromus commutatus John Thomas Howell 1951-6-26 27538 Plumas Sierra Nevada. Feather River Canyon. 853 Comment
  UCD58461  Bromus commutatus John Thomas Howell 1961-6-21 36666 Plumas Sierra Nevada. Greenville. 1097 Comment
  UCD59113  Bromus carinatus var. marginatus John Thomas Howell 1960-7-23 35932 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD59120  Bromus carinatus var. marginatus John Thomas Howell 1960-7-23 35931 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD59261  Bromus orcuttianus John Thomas Howell 1926-7-20 2088 Plumas Near Prattville. 1463 Comment
  UCD59784  Cinna latifolia John Thomas Howell 1960-7-23 35961 Plumas Drakesbad, Lassen Volcanic National Park. 1676 Comment
  UCD59815  Crypsis schoenoides John Thomas Howell 1959-9-26 35068 Plumas Feather River Canyon. Ca. 1.5 miles west of Belden. 682 Comment
  UCD61691  Elymus elymoides subsp. californicus John Thomas Howell 20-23 Jun 1977 52413 Plumas Lake Almanor on the peninsula. 1371 Comment
  UCD61817  Elymus glaucus John Thomas Howell; Gordon True, Walter Knight, Irja Knight 1967-7-10 2213 Plumas Mouth of Butterfly Creek. 883 Comment
  UCD61861  Elymus glaucus John Thomas Howell 1960-7-18 35608 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD62308  Elymus glaucus John Thomas Howell 1959-9-26 35054 Plumas Near Virgilia. 841 Comment
  UCD63520  Deschampsia elongata John Thomas Howell 1960-7-19 35621 Plumas Drakesbad. 1676 Comment
  UCD64237  Leymus cinereus John Thomas Howell 1959-9-24 34898 Plumas Crescent Mills. 1066 Comment
  UCD66090  Festuca idahoensis John Thomas Howell 1960-7-22 35885 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD66750  Glyceria borealis John Thomas Howell 1961-9-25 36953 Plumas Feather River bed, Portola. 1478 Comment
  UCD66837  Glyceria elata John Thomas Howell 1960-7-23 35941 Plumas Lassen Volcanic National Park, Drakesbad. 1676 Comment
  UCD66838  Glyceria elata John Thomas Howell 1926-7-30 2153 Plumas Near Prattville. 1463 Comment
  UCD85816  Koeleria macrantha John Thomas Howell 1962-6-18 37779 Plumas Sierra Valley near Beckwourth. 1487 Comment
  UCD86661  Muhlenbergia filiformis John Thomas Howell 1960-7-18 35581 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD87286  Melica fugax John Thomas Howell 1960-7-18 35603 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD87575  Leymus triticoides John Thomas Howell 1955-7-19 30802 Plumas Vinton. 1505 Comment
  UCD88624  Melica subulata John Thomas Howell 1960-7-22 35903 Plumas Lassen Volcanic National Park. Devil's Kitchen to Drakesbad. 1676 Comment
  UCD88628  Melica subulata John Thomas Howell; Gordon True, Walter and Irja Knight 1968-6-11 2410 Plumas Butterfly Botanical Area. 1097 Comment
  UCD89523  Panicum capillare John Thomas Howell 1960-7-20 35761 Plumas Lassen Volcanic National Park. Boilings Springs Lake. 1798 Comment
  UCD91537  Puccinellia distans John Thomas Howell 1955-7-19 30803 Plumas Vinton. 1505 Comment
  UCD91797  Poa palustris John Thomas Howell 1955-7-19 30735 Plumas Portola. 1478 Comment
  UCD91798  Poa palustris John Thomas Howell 1960-7-19 35627 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD91856  Puccinellia distans John Thomas Howell 1962-6-19 37855 Plumas 5.5 miles east of Beckwourth. 1493 Comment
  UCD91987  Poa sierrae John Thomas Howell 1967-6-22 42650 Plumas near mouth of Granite Creek. Canyon of the Feather River North Fork. 609 Comment
  UCD91988  Poa sierrae John Thomas Howell; Gordon H. True 1969-4-8 45483 Plumas 3.5 miles southwest of Belden, Feather River Canyon. 609 Comment
  UCD93198  Torreyochloa pallida var. pauciflora John Thomas Howell 1960-7-19 35647 Plumas Drakesbad. 1676 Comment
  UCD93379  Thinopyrum intermedium John Thomas Howell; Gordon H. True 1968-6-10 44544 Plumas Sierra Nevada. Quincy. 1036 Comment
  UCD93594  Trisetum canescens John Thomas Howell 1960-7-17 35492 Plumas Drakesbad. 1676 Comment
  UCD94545  Vulpia microstachys var. pauciflora John Thomas Howell 1961-6-21 36593 Plumas Greenville. 1097 Comment
  UCD94784  Vulpia myuros John Thomas Howell 1962-6-17 37684 Plumas Butterfly Valley. 1036 Comment
  UCD94834  Sparganium emersum John Thomas Howell 1960-7-22 35869 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD97209  Amaranthus californicus John Thomas Howell 1959-9-25 34990 Plumas Feather River, Portola. 1478 Comment
  UCR143157  Chrysothamnus nauseosus subsp. albicaulis J. T. Howell 1960-8-20 s.n. Plumas Kelly Camp, near Drakesbad 1616 Comment
  UCR244660  Cryptantha J. T. Howell, H. K. Wagnon 1980-5-28 53699 Plumas Sierra Nevada Mtns., Serpentine Canyon about 3 miles east of Rich Bar, East Branch North Fork Feather River 854 Comment
  UCR244661  Cryptantha J. T. Howell, T. C. Fuller, G. D. Barbe 1981-6-24 54228 Plumas Sierra Nevada Mtns., 6 miles southeast [presumably on Mt. Hough Crystal Lake Rd.] of Mt. Hough on road to Quincy 1646 Comment
  UCR244687  Hackelia nervosa J. T. Howell, T. C. Fuller, G. D. Barbe 1981-6-22 54113 Plumas Sierra Nevada Mtns., 10.6 miles NE of LaPorte on road [LaPorte Rd.] to Quincy 1890 Comment
  UCR244688  Hackelia nervosa J. T. Howell, T. C. Fuller, G. D. Barbe 1981-6-24 54263 Plumas Sierra Nevada Mtns., C. 1.4 miles southeast [presumably on Mt. Hough Crystal Lake Rd.] of Mt. Hough on road to Quincy 1951 Comment
  UCR77905.2  Arctostaphylos mewukka subsp. truei J. T. Howell 1976-4-2 51570 Plumas Injun Jim Campground, N Fork Feather River 610 Comment
  UCR88888  Spergularia atrosperma J. T. Howell 1962-6-19 37866 Plumas Sierra Nevada Mtns., 5.8 mi east of Beckworth. 1494 Comment
  CAS-BOT-BC100095  Balsamorhiza sagittata John Thomas Howell 1960-7-21 35804 Plumas slopes near Terminal Geyser 1828 Comment
  CAS-BOT-BC102347  Populus alba John Thomas Howell 1959-9-25 35035 Plumas Quincy 1036 Comment
  CAS-BOT-BC103884  Salix exigua John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54345 Plumas Near mouth of Lights Creek 1371 Comment
  CAS-BOT-BC106459  Balsamorhiza hookeri John Thomas Howell 1978-4-14 52860 Plumas On edge of pine woods, west of Portola - Sierra Nevada Comment
  CAS-BOT-BC11026  Mimulus suksdorfii John Thomas Howell 1962-6-19 37870 Plumas Sandy Flat, 5,8 miles E of Beckwourth 1493 Comment
  CAS-BOT-BC110839  Scirpus pauciflorus John Thomas Howell; Gordon H. True 1967-6-11 42572 Plumas Meadow at Quincy 1036 Comment
  CAS-BOT-BC111011  Scirpus microcarpus John Thomas Howell 1975-7-15 51855 Plumas Snake Lake, about 4 miles northwest of Quincy. 1219 Comment
  CAS-BOT-BC111825  Schoenoplectus tabernaemontani John Thomas Howell 1959-9-26 35062 Plumas Near Virgilia Comment
  CAS-BOT-BC112059  Eleocharis quinqueflora John Thomas Howell; Harvey Keith Wagnon 1980-5-27 53613 Plumas 1 mile west of Almanor 1386 Comment
  CAS-BOT-BC113507  Eleocharis bella John Thomas Howell; Harvey Keith Wagnon 1980-5-27 53612 Plumas 1 mi W of Almanor 1386 Comment
  CAS-BOT-BC114128  Cyperus squarrosus John Thomas Howell 1961-9-24 36913 Plumas Feather River bed sur. of Beckworth. 1487 Comment
  CAS-BOT-BC114188  Cyperus strigosus John Thomas Howell 1959-9-26 35080 Plumas Storrie 548 Comment
  CAS-BOT-BC114545  Cyperus eragrostis John Thomas Howell 1959-9-26 35073 Plumas Feather River Canyon. Ca. 1.5 mi W of Belden. 682 Comment
  CAS-BOT-BC115406  Carex utriculata John Thomas Howell 1960-7-21 3579 D Plumas Wet meadow, Drakesbad. 1828 Comment
  CAS-BOT-BC116000  Carex subfusca John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54350 Plumas 4.8 mi NW of Antelope Reservoir. 1661 Comment
  CAS-BOT-BC118129  Carex rossii John Thomas Howell 1960-7-21 35832 Plumas Meadowy forest floor NW of Willow Lake. 1706 Comment
  CAS-BOT-BC118135  Carex rossii John Thomas Howell; R. C. Barneby 1954-5-14 29556 Plumas 2 mi E of Blairsdan 1493 Comment
  CAS-BOT-BC118136  Carex rossii John Thomas Howell; R. C. Barneby 1954-5-14 29556 Plumas 2 mi E of Blairsdan 1493 Comment
  CAS-BOT-BC119186  Carex pachystachya John Thomas Howell 1960-7-21 35729 A Plumas Moist meadow, Drakesbad. 1828 Comment
  CAS-BOT-BC119522  Carex nudata John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1969-6-24 2452 Plumas Butterfly and Spanish Creeks, from water's edge near near confluence. 883 Comment
  CAS-BOT-BC119853  Carex nebrascensis John Thomas Howell; Gordon H. True 1967-6-11 42571 Plumas Meadow at Quincy 1036 Comment
  CAS-BOT-BC121013  Paeonia brownii J. T. Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54235 Plumas About 4 miles south of Mt. Hough Road 1645 Comment
  CAS-BOT-BC124795  Salix lemmonii John Thomas Howell 1960-7-21 35838 Plumas Flats nw. of Willow Lake 1676 Comment
  CAS-BOT-BC124797  Salix lemmonii John Thomas Howell 1960-7-20 35725 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC127090  Agrostis exarata John Thomas Howell 1959-9-22 34845 Plumas Drakesbad. 1737 Comment
  CAS-BOT-BC127495  Agrostis capillaris John Thomas Howell 1975-6-15 51129 Plumas Sierra Nevada. Waste Ground, Quincy. 1036 Comment
  CAS-BOT-BC129099  Salix scouleriana John Thomas Howell 1960-7-20 35730 Plumas Between meadow and forest, Drakesbad - Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC13245  Agoseris monticola J. T. Howell 1960-7-21 35840 Plumas Lassen Volcanic National Park, NW of Willow Lake 1676 Comment
  CAS-BOT-BC133505  Iris John Thomas Howell; H. Keith Wagnon 1980-5-27 53678 Plumas Indian Hill north of Quincy 1097 Comment
  CAS-BOT-BC137400  Ivesia aperta John Thomas Howell 1962-6-18 37796 Plumas Sierra Valley near ca. 2 mi. s. Beckwourth 1487 Comment
  CAS-BOT-BC138707  Agrostis scabra John Thomas Howell 1960-7-20 35774 Plumas Lassen Volcanic National Park. Boiling Springs Lake. 1798 Comment
  CAS-BOT-BC138710  Agrostis scabra John Thomas Howell 1960-7-20 35773 Plumas Lassen Volcanic National Park. Boiling Springs Lake. 1798 Comment
  CAS-BOT-BC139248  Agrostis idahoensis John Thomas Howell 1960-7-21 35854 Plumas Lassen Volcanic National Park. Northwest of Willow Lake. 1676 Comment
  CAS-BOT-BC139251  Agrostis idahoensis John Thomas Howell 1960-7-20 35734 Plumas Lassen Volcanic National Park. Between Boiling Springs Lake and Drakesbad. 1828 Comment
  CAS-BOT-BC143989  Horkelia fusca var. tenella John Thomas Howell; H. Keith Wagnon 1980-5-27 53632 Plumas About 2 miles northwest of Almanor 1389 Comment
  CAS-BOT-BC14659  Boechera rectissima John Thomas Howell; Harvey Keith Wagnon 1980-5-26 53603 Plumas Sierra Nevada. 10 miles east of Virgilia on road to Quincy. Comment
  CAS-BOT-BC14660  Boechera rectissima John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54234 Plumas Sierra Nevada. About 4 miles southeast of Mount Hough on the road to Quincy. 1645 Comment
  CAS-BOT-BC148706  Bromus carinatus var. marginatus John Thomas Howell 1960-7-23 35930 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC150018  Holodiscus discolor var. discolor John Thomas Howell 1951-6-27 s.n. Plumas Jamison Creek 1828 Comment
  CAS-BOT-BC153617  Diplacus John Thomas Howell 1967-6-23 42726 Plumas 3.5 miles east of Rich Bar, East Branch Feather River Comment
  CAS-BOT-BC153948  Diplacus pygmaeus John Thomas Howell; H. Keith Wagnon 1980-5-27 53623 Plumas About 1.5 miles northwest of Almanor (near intersection of Highway 89 and Humboldt Road) 1389 Comment
  CAS-BOT-BC153949  Diplacus pygmaeus John Thomas Howell; H. Keith Wagnon 1980-5-27 53606 Plumas 1 mile west of Almanor 1386 Comment
  CAS-BOT-BC158151  Prunus emarginata John Thomas Howell 1960-7-20 35745 Plumas Boiling Springs Lake 1798 Comment
  CAS-BOT-BC158525  Potentilla millefolia John Thomas Howell; H. Keith Wagnon 1980-5-27 53633 Plumas About 2 miles northwest of Almanor 1389 Comment
  CAS-BOT-BC16067  Boechera breweri John Thomas Howell; Gordon H. True 1967-5-9 42205 Plumas Sierra Nevada. Lewisia Rock, 3.5 miles southwest of Belden, Feather River Canyon. 609 Comment
  CAS-BOT-BC162583  Clarkia John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54256 Plumas About 2.5 miles southeast of Mt. Hough on the road to Quincy - Sierra Nevada 1798 Comment
  CAS-BOT-BC162586  Clarkia John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54245 Plumas About 3 miles southeast of Mt. Hough on the road to Quincy - Sierra Nevada 1737 Comment
  CAS-BOT-BC164917  Clarkia rhomboidea John Thomas Howell; Gordon H. True 1967-6-11 43289 Plumas 2.5 miles from Quincy Junction on road to Mt. Hough 1249 Comment
  CAS-BOT-BC165921  Epilobium John Thomas Howell 1959-9-21 34742 Plumas Belden 701 Comment
  CAS-BOT-BC165924  Epilobium John Thomas Howell; H. Keith Wagnon 1980-5-26 53600 Plumas Near Rich Bar, East Branch of Feather River North Fork 762 Comment
  CAS-BOT-BC165925  Epilobium John Thomas Howell; H. Keith Wagnon 1980-5-28 53711 Plumas North Fork Feather River Canyon 4 miles northeast of Pulga Bridge Comment
  CAS-BOT-BC165928  Epilobium John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54166 Plumas 3.25 miles west of Round Valley Reservoir dam 1633 Comment
  CAS-BOT-BC169858  Garrya fremontii John Thomas Howell 1978-4-19 52853 Plumas yellow pine forest, eastern part of Quincy 1036 Comment
  CAS-BOT-BC171349  Alnus incana subsp. tenuifolia John Thomas Howell 1960-7-17 35501 Plumas Drakesbad, Lassen Volcanic Park 1828 Comment
  CAS-BOT-BC174301  Eremogone congesta var. suffrutescens John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54357 Plumas Near Indian Creek about 0.75 miles northwest of northwest arm of Antelope Resrvoir 1584 Comment
  CAS-BOT-BC17547  Athysanus pusillus John Thomas Howell 1976-4-2 51572 Plumas Sierra Nevada. 2 miles northwest of Spring Garden. 1173 Comment
  CAS-BOT-BC175664  Viola John Thomas Howell; Gordon H. True 1973-7-31 50105 Plumas Summit ridge of Thompson Peak, Diamond Range 2194 Comment
  CAS-BOT-BC175671  Viola lobata John Thomas Howell 1977-6-21 s.n. Plumas Between Seneca and Butt Valley Reservoir Comment
  CAS-BOT-BC175687  Viola quercetorum John Thomas Howell 1978-4-19 52854 Plumas Eastern part of Quincy 1036 Comment
  CAS-BOT-BC175854  Delphinium John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54391 Plumas 0.3 miles southwest of Bucks Summit on road to Bucks Lake 1645 Comment
  CAS-BOT-BC176983  Salsola tragus John Thomas Howell 1951-6-29 27739 Plumas Near Spring Garden 1219 Comment
  CAS-BOT-BC176986  Salsola tragus John Thomas Howell 1959-9-25 34997 Plumas 2 miles east of Portola 1484 Comment
  CAS-BOT-BC177810  Cryptantha John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54247 Plumas 3 miles southeast of Mt. Hough on road to Quincy 1737 Comment
  CAS-BOT-BC179651  Delphinium John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54261 Plumas About 2.5 miles southeast of Mt. Hough on the road to Quincy 1798 Comment
  CAS-BOT-BC179653  Delphinium John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54154 Plumas 3.25 miles west of Round Valley Reservoir dam 1633 Comment
  CAS-BOT-BC182416  Cryptantha John Thomas Howell; H. Keith Wagnon 1980-5-28 53699 Plumas Serpentine Canyon about 3 miles east of Rich Bar, East Branch North Fork Feather River 853 Comment
  CAS-BOT-BC182435  Hackelia John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54279 Plumas About 1.3 mi. southeast of summit of Mt. Hough on road to Quincy 2042 Comment
  CAS-BOT-BC18348  Carex John Thomas Howell 1962-6-16 37642 Plumas Sierra Nevada. Feather River North Fork on road to Caribou. 731 Comment
  CAS-BOT-BC18350  Carex John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54180 Plumas Sierra Nevada. Long Valley at road to Maxwell Mine. 1633 Comment
  CAS-BOT-BC18351  Carex John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54181 Plumas Sierra Nevada. Long Valley at road to Maxwell Mine. 1633 Comment
  CAS-BOT-BC18352  Carex John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54183 Plumas Sierra Nevada. Long Valley at road to Maxwell Mine. 1633 Comment
  CAS-BOT-BC18355  Carex John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54340 Plumas Sierra Nevada. 2.8 miles north-northeast of Englemine on Diamond Mountain Road. 1341 Comment
  CAS-BOT-BC18356  Carex John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54342 Plumas Sierra Nevada. 2.8 miles north-northeast of Englemine on Diamond Mountain Road. 1341 Comment
  CAS-BOT-BC18357  Carex John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54396 Plumas Sierra Nevada. 0.3 miles southwest of Bucks Summit on road to Bucks Lake. 1645 Comment
  CAS-BOT-BC18359  Carex John Thomas Howell 1951-6-26 27535 Plumas Sierra Nevada. Feather River Canyon. 853 Comment
  CAS-BOT-BC18360  Carex John Thomas Howell 1951-6-26 27535 Plumas Sierra Nevada. Feather River Canyon. 853 Comment
  CAS-BOT-BC18361  Carex John Thomas Howell 1951-6-26 27536 Plumas Sierra Nevada. Feather River Canyon. 853 Comment
  CAS-BOT-BC18362  Carex John Thomas Howell 1962-6-16 37643 Plumas Sierra Nevada. Feather River North Fork on road to Caribou. 731 Comment
  CAS-BOT-BC18364  Carex John Thomas Howell; Gordon H. True 1973-7-31 50083 Plumas Sierra Nevada. Diamond Range. Summit ridge of Thompson Peak. 2194 Comment
  CAS-BOT-BC186685  Ranunculus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54175 Plumas Long Valley at road to Maxwell Mine 1633 Comment
  CAS-BOT-BC189308  Cryptantha John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54219 Plumas About 5 miles SE of Mount Hough on the road to Quincy 1584 Comment
  CAS-BOT-BC189309  Cryptantha John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54246 Plumas About 3 miles SE of Mount Hough on the road to Quincy 1737 Comment
  CAS-BOT-BC189658  Danthonia californica John Thomas Howell 1960-7-21 35806 Plumas Lassen Volcanic National Park. Terminal Geyser. 1828 Comment
  CAS-BOT-BC19525  Carex bolanderi John Thomas Howell 1975-6-15 51121 Plumas Sierra Nevada. North Fork Feather River near Storrie. 548 Comment
  CAS-BOT-BC19526  Carex bolanderi John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54292 Plumas Sierra Nevada. On China Grade, 1.4 mile south of Taylorsville. 1402 Comment
  CAS-BOT-BC19627  Carex brainerdii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54328 Plumas Sierra Nevada. 1.4 miles north-northeast of Englemine on Diamond Mt. Road. 1295 Comment
  CAS-BOT-BC19729  Carex athrostachya John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54179 Plumas Sierra Nevada. Long Valley at road to Maxwell Mine. 1633 Comment
  CAS-BOT-BC198150  Deschampsia danthonioides John Thomas Howell 1959-9-22 34875 Plumas Lassen Park Ranger Staton on road from Chester to Drakesbad 1676 Comment
  CAS-BOT-BC19867  Carex echinata subsp. echinata John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54383 Plumas Sierra Nevada. 0.25 miles east of Bucks Summit on road to Quincy. 1670 Comment
  CAS-BOT-BC199691  Trisetum canescens John Thomas Howell 1960-7-17 35492 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC199698  Trisetum canescens John Thomas Howell 1960-7-24 35973 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC206505  Elymus glaucus subsp. glaucus John Thomas Howell 1960-7-17 35493 Plumas Drakesbad - Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC206507  Elymus glaucus subsp. glaucus John Thomas Howell 1960-7-18 35608 Plumas Drakesbad, near hot springs - Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC20698  Carex fracta John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54114 Plumas Sierra Nevada. 10.6 miles northeast of La Porte on road to Quincy. 1889 Comment
  CAS-BOT-BC213136  Sidalcea John Thomas Howell 1977-6-21 52389 Plumas Between Seneca and Butt Valley Reservoir, Sierra Nevada Comment
  CAS-BOT-BC213137  Sidalcea John Thomas Howell; Gordon H. True 1973-7-31 50142 Plumas Road from Janesville to Thompson Peak, Diamond Range, Sierra Nevada 1905 Comment
  CAS-BOT-BC213969  Amsinckia John Thomas Howell; H. Keith Wagnon 1980-5-27 53680 Plumas Quincy, Sierra Nevada 1051 Comment
  CAS-BOT-BC214194  Scutellaria John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54202 Plumas 2.5 miles northeast of Quincy Junction on road to Mt. Hough, Sierra Nevada 1280 Comment
  CAS-BOT-BC219374  Nemophila John Thomas Howell; H. Keith Wagnon 1980-5-28 53710 Plumas North Fork Feather River Canyon 4 miles northeast of Pulga Bridge Comment
  CAS-BOT-BC21972  Carex heteroneura John Thomas Howell 1960-7-22 35927 Plumas Near Drakesbad. Dry meadow near Devil's Kitchen. 1828 Comment
  CAS-BOT-BC222812  Asclepias John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54318 Plumas Near Englemine on Diamond Mt. road northeast of Taylorsville 1219 Comment
  CAS-BOT-BC224381  Cuscuta John Thomas Howell 1962-6-18 s.n. Plumas Northwest part of Sierra Valley 1487 Comment
  CAS-BOT-BC224544  Cuscuta californica John Thomas Howell; G. D. Barbe; T. C. Fuller 1981-6-26 54407 Plumas South end of Walker Plain near Buckeye. About 8 miles southwest of Bucks Lake on road to Oroville 1524 Comment
  CAS-BOT-BC228919  Cistanthe umbellata John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54400 Plumas Grizzley [Grizzly] Summit, 6 miles southwest of Bucks Lake 1676 Comment
  CAS-BOT-BC230336  Navarretia leucocephala John Thomas Howell 1962-6-19 37858 Plumas 5.5 miles E of Beckwourth 1493 Comment
  CAS-BOT-BC230395  Navarretia leucocephala subsp. minima John Thomas Howell 1977-8-11 52703 Plumas At N end of Frenchmans Reservoir 1706 Comment
  CAS-BOT-BC230959  Plagiobothrys hispidulus John Thomas Howell 1960-7-21 35830 A Plumas Lassen Volcanic National Park. NW of Willow Lake 1706 Comment
  CAS-BOT-BC230967  Plagiobothrys hispidulus John Thomas Howell; H. Keith Wagnon 1980-5-27 53618 Plumas 1 mile W of Almanor 1386 Comment
  CAS-BOT-BC230968  Plagiobothrys hispidulus John Thomas Howell; H. Keith Wagnon 1980-5-27 53622 Plumas 1 mile W of Almanor 1386 Comment
  CAS-BOT-BC233726  Portulaca John Thomas Howell 1961-9-24 36916 Plumas Feather River bed SW of Beckwourth, Sierra Nevada 1487 Comment
  CAS-BOT-BC24186  Arctostaphylos John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54265 Plumas Rocky summit ridge, Mt. Hough 2203 Comment
  CAS-BOT-BC24187  Arctostaphylos John Thomas Howell; Gordon H. True 1967-5-8 42198 Plumas Along the Forest Service road between Butterfly Valley proper and the Butterfly Botanical Area. Comment
  CAS-BOT-BC244348  Poa annua John Thomas Howell 1959-9-22 34864 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC246067  Limosella aquatica John Thomas Howell 1962-6-19 37859 Plumas 5.5 miles e. of Beckwourth, Sierra Nevada 1493 Comment
  CAS-BOT-BC246068  Limosella aquatica John Thomas Howell 1926-7-24 2111 Plumas Strand of Lake Almanor near Prattville 1371 Comment
  CAS-BOT-BC247393  Poa pratensis John Thomas Howell 1960-7-18 35510 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC25408  Boechera retrofracta John Thomas Howell 1951-6-28 27720 Plumas Eureka Park. 2255 Comment
  CAS-BOT-BC25412  Boechera retrofracta John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54188 Plumas Sierra Nevada. Rush Creek. 1402 Comment
  CAS-BOT-BC254611  Poa X limosa John Thomas Howell 1962-6-18 37757 Plumas Sierra Valley near Beckwourth, 2 miles W of Beckwourth on Highway to Portola 1487 Comment
  CAS-BOT-BC254612  Poa X limosa John Thomas Howell 1962-6-18 37756 Plumas Sierra Valley near Beckwourth, 2 miles W of Beckwourth on Highway to Portola 1487 Comment
  CAS-BOT-BC255753  Eriogonum elatum var. villosum John Thomas Howell 1961-9-23 36890 Plumas Englemine, Sierra Nevada 1097 Comment
  CAS-BOT-BC25586  Boechera retrofracta John Thomas Howell 1974-9-20 50890 Plumas Sierra Nevada. 7 miles from Quincy on road to Blairsden. 1097 Comment
  CAS-BOT-BC25719  Boechera sparsiflora John Thomas Howell; Gordon H. True 1973-7-31 50116 Plumas Sierra Nevada. Diamond Range. Summit ridge of Thomspon Peak. 2194 Comment
  CAS-BOT-BC260841  Phleum pratense John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54197 Plumas 2.5 miles northeast of Quincy Junction on road to Mt. Hough, Sierra Nevada 1280 Comment
  CAS-BOT-BC261599  Eriogonum nudum var. nudum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54314 Plumas Near Englemine on Diamond Mt. road northeast of Taylorsville 1219 Comment
  CAS-BOT-BC261603  Eriogonum nudum var. nudum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54314 Plumas Near Englemine on Diamond Mt. road northeast of Taylorsville 1219 Comment
  CAS-BOT-BC262246  Eriogonum ursinum John Thomas Howell 1967-6-23 42725 Plumas 4 miles east of Rich Bar, East Branch Feather River 762 Comment
  CAS-BOT-BC264131  Eriogonum vimineum John Thomas Howell 1955-7-19 30732 Plumas Portola, west of town, Sierra Nevada 1478 Comment
  CAS-BOT-BC264134  Eriogonum vimineum John Thomas Howell 1959-9-26 35079 Plumas 5 mi. NE of Storrie, Sierra Nevada 609 Comment
  CAS-BOT-BC264135  Eriogonum vimineum John Thomas Howell 1951-6-29 27740 Plumas Near Spring Garden 1219 Comment
  CAS-BOT-BC264179  Melica subulata John Thomas Howell 1960-7-23 35965 Plumas Dream Lake, Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC267007  Muhlenbergia filiformis John Thomas Howell 1960-7-18 35581 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC267055  Alisma John Thomas Howell 1959-9-21 34815 Plumas Indian Creek 914 Comment
  CAS-BOT-BC267059  Alisma John Thomas Howell 1973-7-9 49707 Plumas Crescent Milk 1066 Comment
  CAS-BOT-BC267203  Potamogeton foliosus John Thomas Howell 1926-7-24 2107 Plumas Lake Almanor near Prattville 1371 Comment
  CAS-BOT-BC272085  Centaurea cyanus John Thomas Howell 1951-6-26 27552 Plumas Crescent Mills, Sierra Nevada 1066 Comment
  CAS-BOT-BC275301  Muhlenbergia mexicana John Thomas Howell 1959-9-21 34746 Plumas Sand bars of Feather River, N Fork near Belden 701 Comment
  CAS-BOT-BC278216  Schedonorus arundinaceus John Thomas Howell 1959-9-26 35070 Plumas Near Soda Spring, Feather River Canyon 682 Comment
  CAS-BOT-BC278634  Festuca subulata John Thomas Howell 1960-7-21 35853 Plumas Lassen Volcanic National Park. NW. of Willow Lake 1676 Comment
  CAS-BOT-BC279028  Festuca rubra John Thomas Howell 1960-7-23 35951 Plumas Lassen Volcanic National Park. Near Soda Spring, Drakesbad 1828 Comment
  CAS-BOT-BC279958  Cirsium douglasii var. breweri John Thomas Howell 1960-7-24 35977 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC279962  Cirsium douglasii var. breweri John Thomas Howell 1960-7-24 35978 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC282078  Melica fugax John Thomas Howell 1960-7-18 35603 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC282710  Glyceria elata John Thomas Howell 1960-7-18 35514 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC283630  Schedonorus pratensis John Thomas Howell 1960-7-18 35566 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC283808  Leymus cinereus John Thomas Howell 1961-9-23 36861 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC283876  Glyceria borealis John Thomas Howell; Gordon H. True 1968-6-10 44558 Plumas Quincy. Spanish Creek at Gansner Grove 1036 Comment
  CAS-BOT-BC284416  Cirsium arvense John Thomas Howell; Gordon H. True 1973-7-31 50138 Plumas On road from Janesville to Thompson Peak, Diamond Range, Sierra Nevada 1905 Comment
  CAS-BOT-BC284649  Hordeum brachyantherum subsp. brachyantherum John Thomas Howell 1960-7-18 35511 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC286166  Conyza canadensis John Thomas Howell 1960-7-20 35775 Plumas Lassen Volcanic National Park. Boiling Springs Lake 1798 Comment
  CAS-BOT-BC286360  Cirsium scariosum John Thomas Howell 1951-6-29 27736 Plumas Near Spring Garden Comment
  CAS-BOT-BC286661  Ericameria bloomeri John Thomas Howell 1960-7-24 35990 Plumas Kelly Camp, just outside Lassen Park 1615 Comment
  CAS-BOT-BC287206  Cota tinctoria John Thomas Howell 1960-7-24 35995 Plumas Chester 1371 Comment
  CAS-BOT-BC28735  Achillea millefolium J. T. Howell 1959-9-24 34948 Plumas American Valley near Quincy 1051 Comment
  CAS-BOT-BC294286  Ericameria nauseosa var. speciosa John Thomas Howell 1960-8-20 36283 Plumas Near Lassen Volcanic National Park. Kelly Camp, near Drakesbad 1615 Comment
  CAS-BOT-BC295487  Erigeron lassenianus var. lassenianus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54203 Plumas 2.5 miles northeast of Quincy Junction on road to Mt. Hough 1280 Comment
  CAS-BOT-BC295996  Erigeron divergens John Thomas Howell 1977-8-11 52673 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir, Sierra Nevada 1676 Comment
  CAS-BOT-BC297148  Erigeron concinnus var. concinnus John Thomas Howell 1951-8-19 28176 Plumas Near Paxton, Sierra Nevada 914 Comment
  CAS-BOT-BC29833  Adenocaulon bicolor John Thomas Howell 1960-7-21 35835 Plumas NW of Willow Lake 1706 Comment
  CAS-BOT-BC300419  Erigeron eatonii var. sonnei John Thomas Howell 1977-6-21 52393 Plumas Near Almanor P. O., Lake Almanor 1371 Comment
  CAS-BOT-BC300420  Erigeron eatonii var. sonnei John Thomas Howell; H. Keith Wagnon 1980-5-27 53620 Plumas 1 mile west of Almanor 1386 Comment
  CAS-BOT-BC303817  Gnaphalium John Thomas Howell 1976-10-29 52281 Plumas Folsom Lake at Brown's Ravine Boat Landing, near high water line 121 Comment
  CAS-BOT-BC305359  Helianthus annuus John Thomas Howell 1961-9-23 36818 Plumas Greenville 1088 Comment
  CAS-BOT-BC307383  Gnaphalium palustre John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54208 Plumas 2.5 miles northeast of Quincy Junction on road to Mt. Hough, Sierra Nevada 1280 Comment
  CAS-BOT-BC30740  Scirpus diffusus John Thomas Howell 1959-9-22 34852 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC310922  Heterotheca villosa John Thomas Howell 1977-8-11 52713 Plumas Bottom of Frenchmans Reservoir on east side near Big Cove 1706 Comment
  CAS-BOT-BC311017  Heterotheca oregona John Thomas Howell 1959-9-26 35077 A Plumas Feather River Canyon (north fork) 1 mile above 2000 ft. marker Comment
  CAS-BOT-BC312257  Euthamia occidentalis John Thomas Howell 1959-9-21 34750 Plumas N. Fk. Feather River near Belden, Sierra Nevada 701 Comment
  CAS-BOT-BC312293  Heterotheca villosa var. minor John Thomas Howell 1951-8-20 28230 Plumas Vinton, Sierra Valley, Sierra Nevada 1524 Comment
  CAS-BOT-BC314800  Helianthella californica var. nevadensis John Thomas Howell 1975-6-16 51142 Plumas 2 miles northwest of Spring Garde, Sierra Nevada 1173 Comment
  CAS-BOT-BC316036  Hieracium scouleri John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54211 Plumas About 5 miles southeast of Mt. Hough on the road to Quincy, Sierra Nevada 1584 Comment
  CAS-BOT-BC317162  Packera subnuda var. subnuda John Thomas Howell; Gordon H. True; W. Knight; Irja Knight 1967-5-7 1877 Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC318521  Hieracium bolanderi John Thomas Howell 1951-6-28 27716 Plumas Eureka Peak 2255 Comment
  CAS-BOT-BC32068  Carex multicaulis John Thomas Howell; Gordon H. True 1967-5-7 42185 Plumas Injin Jim Campground at confluence of Granite Creek and North Fork of Feather River. 609 Comment
  CAS-BOT-BC32071  Carex multicaulis John Thomas Howell; R. C. Barneby 1954-5-14 29555 Plumas 2 mi E of Blairsden 1493 Comment
  CAS-BOT-BC32073  Carex multicaulis John Thomas Howell 1926-7-23 2092 Plumas Prattville 1463 Comment
  CAS-BOT-BC324549  Malacothrix John Thomas Howell; H. Keith Wagnon 1980-5-28 53701 Plumas Serpentine Canyon about 3 miles east of Rich Bar, East Branch North Fork Feather River, Sierra Nevada 853 Comment
  CAS-BOT-BC337875  Lapsana communis John Thomas Howell 1974-9-19 50887 Plumas Quincy 1036 Comment
  CAS-BOT-BC340352  Kyhosia bolanderi John Thomas Howell 1960-7-23 35940 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC340598  Lactuca serriola John Thomas Howell 1959-9-22 34838 Plumas Wolf Creek 1371 Comment
  CAS-BOT-BC340599  Lactuca serriola John Thomas Howell 1955-7-19 30741 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC340600  Lactuca serriola John Thomas Howell 1960-7-18 35605 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC340601  Lactuca serriola John Thomas Howell 1961-9-22 36813 Plumas Greenville 1088 Comment
  CAS-BOT-BC341572  Lagophylla ramosissima John Thomas Howell 1961-9-23 36821 Plumas Greenville 1088 Comment
  CAS-BOT-BC342082  Leucanthemum vulgare John Thomas Howell 1976-7-16 51885 Plumas Spanish Creek near mouth of Slate Creek 1066 Comment
  CAS-BOT-BC342084  Leucanthemum vulgare John Thomas Howell 1959-9-24 34949 Plumas American Valley near Quincy 1051 Comment
  CAS-BOT-BC342085  Leucanthemum vulgare John Thomas Howell; Gordon H. True 1967-7-9 43271 Plumas Meadow at Quincy 1036 Comment
  CAS-BOT-BC342865  Madia glomerata John Thomas Howell 1959-9-22 34848 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC342869  Madia glomerata John Thomas Howell 1959-9-24 34965 Plumas Sierra Valley near Beckworth 1478 Comment
  CAS-BOT-BC342870  Madia glomerata John Thomas Howell 1959-9-25 35034 Plumas 3 miles southwest of Spring Garden Comment
  CAS-BOT-BC343248  Madia gracilis John Thomas Howell 1951-6-29 27744 Plumas Near Spring Garden 1219 Comment
  CAS-BOT-BC343267  Madia gracilis John Thomas Howell; H. Keith Wagnon 1980-5-28 53693 Plumas Near Twain, East Branch North Fork Feather River 914 Comment
  CAS-BOT-BC343280  Madia gracilis John Thomas Howell; Gordon H. True 1967-7-9 43246 Plumas North Fork of Feather River at Caribou 914 Comment
  CAS-BOT-BC343282  Madia gracilis John Thomas Howell; Gordon H. True 1967-7-9 43246 Plumas North Fork of Feather River at Caribou 914 Comment
  CAS-BOT-BC343782  Madia elegans John Thomas Howell 1961-9-25 36966 Plumas Vinton 1506 Comment
  CAS-BOT-BC344471  Madia exigua John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54193 Plumas 2.5 miles northeast of Quincy Junction on road to Mt. Hough 1280 Comment
  CAS-BOT-BC347522  Malacothrix floccifera J. T. Howell 1959-9-21 s.n. Plumas Slaty road-cut Feather R. Canyon at East Branch Comment
  CAS-BOT-BC348171  Matricaria discoidea John Thomas Howell 1955-7-19 30801 Plumas Vinton 1505 Comment
  CAS-BOT-BC348173  Matricaria discoidea John Thomas Howell 1960-7-19 35666 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC349337  Microseris nutans John Thomas Howell 1960-7-19 35680 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC349920  Nothocalais troximoides John Thomas Howell 1962-6-18 37809 Plumas Sierra Valley 5 mi. s. of Beckwourth 1493 Comment
  CAS-BOT-BC35508  Carex jonesii John Thomas Howell 1959-9-23 s.n. Plumas 3 mi. from Juniper Lake on road to Chester 1889 Comment
  CAS-BOT-BC356061  Petasites John Thomas Howell; Gordon H. True 1969-6-23 45837 Plumas On bank of Thompson Creek 4.7 miles north of Nelson Point on road to Quincy 1188 Comment
  CAS-BOT-BC356504  Pseudognaphalium beneolens John Thomas Howell 1959-9-21 34797 Plumas Virgilia 841 Comment
  CAS-BOT-BC356963  Pseudognaphalium canescens John Thomas Howell 1976-7-16 51880 Plumas Spanish Creek near mouth of Slate Creek 1066 Comment
  CAS-BOT-BC356964  Pseudognaphalium canescens John Thomas Howell 1976-7-16 51918 Plumas Just east of Bucks Summit on road to Meadow Valley 1645 Comment
  CAS-BOT-BC357348  Pseudognaphalium microcephalum John Thomas Howell 1966-7-26 42000 Plumas Injun Jim Campground at confluence of Granite Creek and North Fork of Feather River 609 Comment
  CAS-BOT-BC357349  Pseudognaphalium microcephalum John Thomas Howell 1951-8-19 28173 Plumas Near Paxton 914 Comment
  CAS-BOT-BC361484  Pseudognaphalium stramineum John Thomas Howell 1951-6-29 27764 Plumas Feather River Canyon 548 Comment
  CAS-BOT-BC361677  Pseudognaphalium thermale John Thomas Howell 1961-9-23 36892 Plumas Englemine [Engel Mine] 1097 Comment
  CAS-BOT-BC362283  Pyrrocoma lanceolata var. lanceolata John Thomas Howell 1951-8-20 28234 Plumas Sierra Valley, 3 miles east of Beckwourth 1524 Comment
  CAS-BOT-BC362346  Pyrrocoma racemosa var. paniculata John Thomas Howell 1977-8-11 52717 Plumas Chilcoot 1524 Comment
  CAS-BOT-BC36256  Chrysolepis sempervirens John Thomas Howell 1960-7-20 35783 Plumas Between Boiling Springs Lake and Summit lake and Terminal Geyser, Lassen Volcanic National Park 1859 Comment
  CAS-BOT-BC364037  Senecio integerrimus var. major John Thomas Howell; Gordon H. True 1967-7-11 43322 Plumas About 3 miles southeast of Mt. Houth [Hough] 1706 Comment
  CAS-BOT-BC364764  Sericocarpus oregonensis subsp. californicus John Thomas Howell 1959-9-21 34802 Plumas 4.5 miles from Virgilia on road to Quincy Comment
  CAS-BOT-BC365974  Sonchus John Thomas Howell 1959-9-21 34796 Plumas Virgilia 841 Comment
  CAS-BOT-BC374403  Sonchus asper John Thomas Howell; H. Keith Wagnon 1980-5-26 53587 Plumas Lewisia Rock, Feather River Canyon 3.5 miles southwest of Belden 609 Comment
  CAS-BOT-BC374404  Sonchus asper John Thomas Howell 1975-6-15 51130 Plumas Quincy 1036 Comment
  CAS-BOT-BC374666  Sonchus oleraceus John Thomas Howell 1951-6-29 27755 Plumas Feather River Canyon 548 Comment
  CAS-BOT-BC376804  Tanacetum parthenium John Thomas Howell 1959-9-24 34903 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC376842  Tanacetum vulgare John Thomas Howell 1961-9-23 36822 Plumas Greenville 1088 Comment
  CAS-BOT-BC376960  Taraxacum officinale John Thomas Howell 1978-4-19 52859 Plumas Eastern part of Quincy 1036 Comment
  CAS-BOT-BC376961  Taraxacum officinale John Thomas Howell 1961-6-21 36692 Plumas Greenville 1097 Comment
  CAS-BOT-BC376962  Taraxacum officinale John Thomas Howell 1961-6-21 36693 Plumas Greenville 1097 Comment
  CAS-BOT-BC376963  Taraxacum officinale John Thomas Howell; H. Keith Wagnon 1980-5-27 53630 Plumas About 1.5 miles northwest of Almanor (near intersection of Highway 89 and Humboldt Road) 1389 Comment
  CAS-BOT-BC376964  Taraxacum officinale John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1969-6-24 2457 Plumas Butterfly Botanical Area and Vicinity. Butterfly Creek Canyon 990 Comment
  CAS-BOT-BC376965  Taraxacum officinale John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1967-6-12 2078 Plumas Butterfly Botanical Area and Vicinity 1127 Comment
  CAS-BOT-BC377045  Tragopogon John Thomas Howell 1955-7-19 30736 Plumas Portola 1478 Comment
  CAS-BOT-BC377048  Tragopogon John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54125 Plumas Quincy 1036 Comment
  CAS-BOT-BC377049  Tragopogon John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54316 Plumas Near Englemine on Diamond Mt. road northeast of Taylorsville 1219 Comment
  CAS-BOT-BC377089  Tragopogon dubius John Thomas Howell 1974-9-20 50895 Plumas 7 miles from Quincy on road to Blairsden 1097 Comment
  CAS-BOT-BC377091  Tragopogon dubius John Thomas Howell 1977-8-11 52672 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir 1676 Comment
  CAS-BOT-BC377093  Tragopogon dubius John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2165 Plumas Butterfly Botanical Area and Vicinity. Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC377119  Tragopogon porrifolius John Thomas Howell; Gordon H. True 1967-7-11 43277 Plumas 2 miles from Quincy Junction on road to Mt. Hough 1219 Comment
  CAS-BOT-BC377120  Tragopogon porrifolius John Thomas Howell 1961-6-21 36697 Plumas Greenville 1097 Comment
  CAS-BOT-BC377168  Tragopogon pratensis John Thomas Howell 1962-6-17 37647 Plumas Greenville 1097 Comment
  CAS-BOT-BC377169  Tragopogon pratensis John Thomas Howell 1951-6-28 27643 Plumas Johnsville 1584 Comment
  CAS-BOT-BC377170  Tragopogon pratensis John Thomas Howell 1961-6-21 36699 Plumas Greenville 1097 Comment
  CAS-BOT-BC377171  Tragopogon pratensis John Thomas Howell; Gordon H. True 1974-7-29 50623 Plumas Quincy 1036 Comment
  CAS-BOT-BC378928  Ranunculus bulbosus John Thomas Howell 1975-6-15 51128 Plumas Sierra Nevada, Quincy 488 Comment
  CAS-BOT-BC379214  Ranunculus aquatilis John Thomas Howell 1977-8-11 5690 Plumas canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir, in creek 1707 Comment
  CAS-BOT-BC379215  Ranunculus aquatilis John Thomas Howell 1963-6-4 39404 Plumas Marble Hot Springs, Sierra Valley Comment
  CAS-BOT-BC379246  Ranunculus aquatilis var. diffusus John Thomas Howell 1960-7-23 35970 Plumas Lassen Volcanic National Park, Drakesbad, Dream Lake 1829 Comment
  CAS-BOT-BC379369  Ranunculus alismifolius var. alismifolius John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54105 Plumas 10.6 mi northeast of La Porte on road to Quincy 1890 Comment
  CAS-BOT-BC379371  Ranunculus alismifolius var. alismifolius John Thomas Howell; H. Keith Wagnon 1980-5-27 53627 Plumas about 1.5 mi northwest of Almanor (near intersection of Highway 89 and Humboldt Road) Comment
  CAS-BOT-BC38092  Cardamine pachystigma John Thomas Howell; Gordon H. True 1967-5-9 42217 Plumas Sierra Nevada. Lewisia Rock, 3.5 miles southwest of Belden, Feather River Canyon. 609 Comment
  CAS-BOT-BC38093  Cardamine pachystigma John Thomas Howell; Gordon H. True 1967-5-9 42217 Plumas Sierra Nevada. Lewisia Rock, 3.5 miles southwest of Belden, Feather River Canyon. 609 Comment
  CAS-BOT-BC38094  Cardamine pachystigma John Thomas Howell; Gordon H. True 1967-5-9 42217 Plumas Sierra Nevada. Lewisia Rock, 3.5 miles southwest of Belden, Feather River Canyon. 609 Comment
  CAS-BOT-BC383543  Wyethia mollis John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-6-12 1991 Plumas Butterfly Botanical Area and Vicinity. Valley proper, near barn 1082 Comment
  CAS-BOT-BC383564  Wyethia mollis John Thomas Howell 1960-7-21 35805 Plumas Lassen Volcanic National Park. Slopes near Terminal Geyser 1828 Comment
  CAS-BOT-BC383568  Wyethia mollis John Thomas Howell; H. Keith Wagnon 1980-5-28 53696 Plumas Near Twain, East Branch North Fork Feather River 914 Comment
  CAS-BOT-BC383647  Xanthium spinosum John Thomas Howell; H. Keith Wagnon 1980-5-27 53683 Plumas Quincy 1051 Comment
  CAS-BOT-BC384432  Silene coronaria John Thomas Howell 1966-7-28 42006 Plumas 5 miles north of Quincy on road to Keddie Comment
  CAS-BOT-BC384933  Cerastium arvense John Thomas Howell 1961-9-22 36792 Plumas At Lewisia Rock, North Fork of Feather River 640 Comment
  CAS-BOT-BC386894  Silene gallica John Thomas Howell; H. Keith Wagnon 1980-5-28 53707 Plumas North Fork Feather River canyon 4 miles northeast of Pulga Bridge Comment
  CAS-BOT-BC388191  Cerastium fontanum John Thomas Howell 1960-7-19 35612 Plumas Lassen Volcanic National Park. Near buildings, Drakesbad 1828 Comment
  CAS-BOT-BC388192  Cerastium fontanum John Thomas Howell 1961-9-23 36883 Plumas Lights Creek Canyon below Englemine 1097 Comment
  CAS-BOT-BC388194  Cerastium fontanum John Thomas Howell 1959-9-22 34841 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC388204  Cerastium fontanum subsp. vulgare John Thomas Howell 1976-7-15 51829 Plumas Quincy 1051 Comment
  CAS-BOT-BC388205  Cerastium fontanum subsp. vulgare John Thomas Howell 1951-6-28 27673 Plumas Jamison Creek 1584 Comment
  CAS-BOT-BC388356  Cerastium glomeratum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-6-12 1994 Plumas Butterfly Botanical Area and Vicinity. Valley proper, near barn 1036 Comment
  CAS-BOT-BC388596  Minuartia douglasii John Thomas Howell 1967-6-23 42719 Plumas Canyon of the East Branch of Feather River 2 miles east of Twain Comment
  CAS-BOT-BC388597  Minuartia douglasii John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1968-6-11 2349 Plumas Butterfly Botanical Area. Confluence of Spanish Creek & Butterfly Creek Comment
  CAS-BOT-BC389379  Silene lemmonii John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1969-6-24 2434 Plumas Butterfly Botanical Area and Vicinity. In vicinity of mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC391206  Stellaria longipes subsp. longipes John Thomas Howell 1959-9-23 s.n. Plumas 3 mi. from Juniper Lake on road to Chester 1889 Comment
  CAS-BOT-BC392015  Aquilegia John Thomas Howell; H. Keith Wagnon 1980-5-28 53704 Plumas Serpentine Canyon about 3 miles east of Rich Bar, East Branch North Fork Feather River 853 Comment
  CAS-BOT-BC392269  Myosurus apetalus John Thomas Howell 1962-6-19 37857 Plumas 5.5 miles e. of Beckwourth 1493 Comment
  CAS-BOT-BC392270  Myosurus apetalus John Thomas Howell; H. Keith Wagnon 1980-5-27 53614 Plumas 1 mile west of Almanor 1386 Comment
  CAS-BOT-BC393827  Stellaria media John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 1795 Plumas Near barn in valley proper, Butterfly Botanical Area and vicinity 1036 Comment
  CAS-BOT-BC393829  Stellaria media John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-5-8 1795 Plumas Butterfly Canyon, Butterfly Botanical Area and vicinity 975 Comment
  CAS-BOT-BC393830  Stellaria media John Thomas Howell; Gordon H. True 1974-7-29 50621 Plumas Quincy 1036 Comment
  CAS-BOT-BC397888  Aquilegia formosa John Thomas Howell 1960-7-21 35850 Plumas Stream bank nw of Willow Lake 1676 Comment
  CAS-BOT-BC400625  Asarum hartwegii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54324 Plumas 1.4 miles north-northeast of Englemine on Diamond Mt. Road 1295 Comment
  CAS-BOT-BC401207  Hypericum perforatum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2218 Plumas Butterfly Botanical Area and Vicinity. Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC401440  Hypericum scouleri John Thomas Howell 1960-7-21 35791 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC403350  Eschscholzia californica John Thomas Howell 1974-9-20 50904 Plumas Chilcoot 1554 Comment
  CAS-BOT-BC403351  Eschscholzia californica John Thomas Howell 1961-9-23 36881 Plumas Cooks Creek Road near Engelmine 1082 Comment
  CAS-BOT-BC403930  Urtica dioica subsp. gracilis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54331 Plumas 2.8 miles north-northeast of Englemine [Engel Mine] on Diamond Mt. Road 1341 Comment
  CAS-BOT-BC404196  Urtica dioica subsp. holosericea John Thomas Howell 1961-9-23 36886 Plumas Near Englemine 1097 Comment
  CAS-BOT-BC404197  Urtica dioica subsp. holosericea John Thomas Howell 1959-9-23 31893 Plumas At Benner Creek on road from Chester to Juniper Lake 1524 Comment
  CAS-BOT-BC407711  Arceuthobium abietinum John Thomas Howell 1926-7-25 2115 Plumas near Prattville 1463 Comment
  CAS-BOT-BC409918  Arceuthobium campylopodum John Thomas Howell; Gordon H. True 1967-7-11 43373 Plumas 2 miles SE of Mt. Hough 1828 Comment
  CAS-BOT-BC413730  Persicaria hydropiper John Thomas Howell 1961-9-23 36847 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC413731  Persicaria hydropiper John Thomas Howell 1959-9-26 35071 Plumas Feather River Canyon. Ca. 1.5 mi. W. of Belden 682 Comment
  CAS-BOT-BC413732  Persicaria hydropiper John Thomas Howell 1951-8-19 28164 Plumas Near Belden 670 Comment
  CAS-BOT-BC413890  Fallopia convolvulus John Thomas Howell 1951-8-19 28195 Plumas Greenville 1097 Comment
  CAS-BOT-BC413891  Fallopia convolvulus John Thomas Howell 1955-7-20 30860 Plumas Mohawk 1371 Comment
  CAS-BOT-BC413892  Fallopia convolvulus John Thomas Howell 1967-6-23 42693 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC41400  Draba verna John Thomas Howell 1976-4-2 51574 Plumas Sierra Nevada. 2 miles northwest of Spring Garden. 1173 Comment
  CAS-BOT-BC414048  Polygonum aviculare subsp. aviculare John Thomas Howell 1951-8-19 28191 Plumas Greenville 1097 Comment
  CAS-BOT-BC414311  Polygonum aviculare subsp. neglectum John Thomas Howell; Gordon H. True 1967-7-12 43382 Plumas Twain 883 Comment
  CAS-BOT-BC418394  Sedum John Thomas Howell; H. Keith Wagnon 1980-5-28 53703 Plumas Serpentine Canyon about 3 miles east of Rich Bar, East Branch North Fork Feather River 853 Comment
  CAS-BOT-BC418398  Sedum plumasanum John Thomas Howell; Arthur Menzies 1963-6-2 39384 Plumas On serpentine along highway just east of Rich Bar Comment
  CAS-BOT-BC418804  Aconogonon phytolaccifolium John Thomas Howell 1976-7-16 51924 Plumas Near Bucks Lake 1584 Comment
  CAS-BOT-BC419237  Persicaria maculosa John Thomas Howell 1959-9-24 34929 Plumas Junction of Indian and Spanish Creeks 914 Comment
  CAS-BOT-BC419240  Persicaria maculosa John Thomas Howell 1961-9-22 36798 Plumas Bed of Wolf Creek, Greenville 1088 Comment
  CAS-BOT-BC419835  Polygonum parryi John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54209 Plumas 2.5 miles northeast of Quincy Junction on road to Mt. Hough 1280 Comment
  CAS-BOT-BC420059  Polygonum polygaloides subsp. kelloggii John Thomas Howell; H. Keith Wagnon 1980-5-27 53626 Plumas About 1.5 miles northwest of Almanor (near intersection of Highway 89 and Humboldt Road) 1389 Comment
  CAS-BOT-BC420060  Polygonum polygaloides subsp. kelloggii John Thomas Howell; H. Keith Wagnon 1980-5-27 53615 Plumas 1 mile west of Almanor 1386 Comment
  CAS-BOT-BC420650  Darmera peltata John Thomas Howell; Walter Knight; Irja Knight; Gordon H. True 1968-6-11 2360 Plumas Butterfly Botanical Area. Growing on rocks in Butterfly Creek at confluence of Spanish Creek.. 1036 Comment
  CAS-BOT-BC421035  Polygonum spergulariiforme John Thomas Howell 1974-9-20 50906 Plumas Chilcoot. 1554 Comment
  CAS-BOT-BC421407  Rumex John Thomas Howell 1977-8-11 52712 Plumas Bottom of Frenchmans Reservoir on east side near Big Cove 1706 Comment
  CAS-BOT-BC422038  Rumex acetosella John Thomas Howell 1960-7-21 35800 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC43035  Descurainia incisa subsp. incisa John Thomas Howell; Gordon H. True; Wayne Dakan 1974-7-30 50640 Plumas Sierra Nevada. Headwaters of Indian Creek southeast of Diamond Mountain. 2164 Comment
  CAS-BOT-BC433317  Rumex crispus John Thomas Howell 1960-7-18 35528 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC434313  Rumex triangulivalvis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54398 Plumas Haskins Valley just south of Bucks Lake. 1572 Comment
  CAS-BOT-BC43504  Descurainia sophia John Thomas Howell 1975-7-22 s.n. Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC436051  Ligusticum grayi John Thomas Howell 1960-7-21 35834 Plumas Lassen Volcanic National Park, NW of Willow Lake 1706 Comment
  CAS-BOT-BC436598  Luzula cascadensis John Thomas Howell 1960-7-18 35506 Plumas Lassen Volcanic National Park: Drakesbad 1828 Comment
  CAS-BOT-BC436599  Luzula cascadensis John Thomas Howell 1962-6-17 37648 Plumas Sierra Nevada: Butterfly Valley 1036 Comment
  CAS-BOT-BC436600  Luzula cascadensis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54384 Plumas Sierra Nevada: 0.25 mile E of Bucks Summit on road to Quincy 1670 Comment
  CAS-BOT-BC436676  Luzula comosa var. laxa John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54173 Plumas Sierra Nevada: Long Valley at road to Maxwell Mine 1633 Comment
  CAS-BOT-BC438484  Calandrinia ciliata John Thomas Howell; H. Keith Wagnon 1980-5-27 53631 Plumas About 1.5 miles northwest of Almanor (near intersection of Highway 89 and Humboldt Road) 1389 Comment
  CAS-BOT-BC438485  Calandrinia ciliata John Thomas Howell; Gordon H. True 1967-6-11 42577 Plumas At Quincy. 1036 Comment
  CAS-BOT-BC438486  Calandrinia ciliata John Thomas Howell; Gordon H. True; Wayne Dakan 1974-7-30 50643 Plumas Headwaters of Indian Creek southeast of Diamond Mt. 2164 Comment
  CAS-BOT-BC438647  Cistanthe John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54278 Plumas Mt. Hough 2203 Comment
  CAS-BOT-BC441253  Luzula macrantha John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-6-12 2087 Plumas Butterfly Botanical Area and vicinity: area near spring 1127 Comment
  CAS-BOT-BC441254  Luzula macrantha John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1969-6-24 2425 Plumas Butterfly Botanical Area and vicinity: area adjacent to the mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC441256  Luzula macrantha John Thomas Howell 1961-6-21 36634 Plumas Sierra Nevada: Greenville 1097 Comment
  CAS-BOT-BC443796  Claytonia rubra subsp. rubra John Thomas Howell 1960-7-18 35575 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC444178  Lewisia nevadensis John Thomas Howell; H. Keith Wagnon 1980-5-27 53625 Plumas About 1.5 miles northwest of Almanor (near intersection of Highway 89 and Humboldt Road) 1389 Comment
  CAS-BOT-BC444563  Lewisia triphylla John Thomas Howell 1960-7-22 35920 Plumas Lassen Volcanic National Park. Devil's Kitchen to Drakesbad 1828 Comment
  CAS-BOT-BC444858  Montia fontana John Thomas Howell 1960-7-21 35818 Plumas Lassen Volcanic National Park. Near Terminal Geyser 1828 Comment
  CAS-BOT-BC445093  Montia linearis John Thomas Howell; Gordon H. True 1967-6-11 42576 Plumas Meadow at Quincy 1036 Comment
  CAS-BOT-BC445190  Montia parvifolia John Thomas Howell 1962-6-16 37633 Plumas Lewisia Rock, Feather River North Fork. 640 Comment
  CAS-BOT-BC445272  Portulaca oleracea John Thomas Howell 1977-8-11 52715 Plumas Bottom of Frenchmans Reservoir on east side near Big Cove 1706 Comment
  CAS-BOT-BC445273  Portulaca oleracea John Thomas Howell 1966-7-29 42032 Plumas Quincy 1036 Comment
  CAS-BOT-BC445679  Sagittaria cuneata John Thomas Howell 1973-7-9 49706 Plumas Crescent Mills. 1066 Comment
  CAS-BOT-BC447457  Tellima grandiflora John Thomas Howell 1975-6-15 51124 Plumas North Fork Feather River near Storrie 548 Comment
  CAS-BOT-BC451323  Chimaphila John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54225 Plumas Sierra Nevada: about 5 miles SE of Mt. Hough on the road to Quncy 1584 Comment
  CAS-BOT-BC451341  Chimaphila menziesii John Thomas Howell 1960-7-22 35895 Plumas Lassen Volcanic National Park, Devil's Kitche3n to Drakesbad 1828 Comment
  CAS-BOT-BC457542  Aphanes occidentalis J. T. Howell; Walter Knight; Irja Knight; G. H. True 1967-5-7 2228 D. Plumas Butterfly Botanical Area and Vicinity; open flat near Pond Reservoir. 1097 Comment
  CAS-BOT-BC459423  Allium acuminatum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2176 Plumas Mouth of Butterfly Creek, Butterfly Botanical Area and Vicinity 883 Comment
  CAS-BOT-BC459443  Fragaria virginiana subsp. platypetala John Thomas Howell 1960-7-19 35640 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC459558  Geum macrophyllum John Thomas Howell 1960-7-18 35588 Plumas Drakesbad, near creek; Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC460824  Pyrola aphylla John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54226 Plumas Sierra Nevada: abuot 5 miles SE of Mt. Hough on the road to Quincy 1584 Comment
  CAS-BOT-BC460825  Pyrola aphylla John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2412 Plumas Sierra Nevada: Butterfly Botanical Area. Beargrass glade Comment
  CAS-BOT-BC460981  Chenopodium atrovirens John Thomas Howell 1960-7-19 35658 Plumas Lassen Volcanic National Park, Drakesbad 1828 Comment
  CAS-BOT-BC460983  Chenopodium atrovirens John Thomas Howell 1960-7-22 35893 Plumas Lassen Volcanic National Park, Drakesbad, near soda spring 1828 Comment
  CAS-BOT-BC461098  Allium anceps John Thomas Howell; H. Keith Wagnon no date listed on sheet 53629 Plumas about 1.5 miles northwest of Alamanor (near intersection of Hwy 89 and Humboldt Road), Sierra Nevada 1389 Comment
  CAS-BOT-BC461211  Fragaria John Thomas Howell; H. Keith Wagnon 1980-5-27 53634 Plumas About 2 miles NW of Almanor 1389 Comment
  CAS-BOT-BC466612  Allium campanulatum John Thomas Howell 1961-6-21 36663 Plumas Greenville 1097 Comment
  CAS-BOT-BC466614  Allium campanulatum John Thomas Howell 1960-7-19 35634 Plumas Wooded meadow border, Drakesbad 1828 Comment
  CAS-BOT-BC466615  Allium campanulatum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54224 Plumas About 5 miles southeast of Mt. Hough on the road to Quincy 1584 Comment
  CAS-BOT-BC466618  Allium campanulatum John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1967-7-10 2101 Plumas Between Butterfly Valley and Darlingtonia bog 1066 Comment
  CAS-BOT-BC474057  Allium parvum John Thomas Howell 1975-6-16 51138 Plumas 2 miles northwest of Spring Garden, Sierra Nevada 1173 Comment
  CAS-BOT-BC476720  Allium validum John Thomas Howell 1967-6-23 42701 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC476721  Allium validum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2382 Plumas Butterfly Valley Comment
  CAS-BOT-BC478473  Boisduvalia John Thomas Howell 1976-7-16 51890 Plumas Hydraulic mining gravels on flood plain of Spanish Creek at mouth of Wapaunsie Creek 1097 Comment
  CAS-BOT-BC478511  Gayophytum John Thomas Howell; Gordon H. True 1973-7-31 500096 Plumas Canadian Zone forest, summit ridge of Thompson Peak in areas of volcanic rock, Diamond Range 2194 Comment
  CAS-BOT-BC478512  Gayophytum John Thomas Howell; Gordon H. True 1967-5-29 42399 Plumas Slopes west of Lamont Meadow 1706 Comment
  CAS-BOT-BC478523  Gayophytum John Thomas Howell 1976-7-16 51903 Plumas Flood plain of Spanish Creek at mouth of Wapaunsie Creek 1097 Comment
  CAS-BOT-BC478529  Gayophytum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54405 Plumas Walker Plain, about 8 miles southwest of Bucks Lake on road to Oroville 1554 Comment
  CAS-BOT-BC47863  Ceanothus cordulatus John Thomas Howell 1960-7-20 35741 Plumas Lassen Volcanic Nat'l Park, Boiling Springs Lake 1798 Comment
  CAS-BOT-BC483483  Calochortus minimus John Thomas Howell 1960-7-22 35896 Plumas Devil's Kitchen to Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC484568  Brodiaea minor John Thomas Howell 1973-7-10 49745 Plumas Near Greenville 1097 Comment
  CAS-BOT-BC487771  Calochortus coeruleus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54285 Plumas About 1.3 miles southeast of Mt. Hough on the road to Quincy, Sierra Nevada 2042 Comment
  CAS-BOT-BC487772  Calochortus coeruleus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54325 Plumas 1.4 miles north-northeast of Englemine on Diamond Mt. Road, Sierra Nevada 1295 Comment
  CAS-BOT-BC487774  Calochortus coeruleus John Thomas Howell; Gordon H. True 1967-7-11 43358 Plumas Southeast slope of Mt. Hough, Sierra Nevada 2042 Comment
  CAS-BOT-BC491826  Calochortus leichtlinii John Thomas Howell 1951-6-27 27560 Plumas Johnsville 1584 Comment
  CAS-BOT-BC491827  Calochortus leichtlinii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54358 Plumas Near Indian Creek about 0.75 miles northwest of northwest arm of Antelope Reservoir 1584 Comment
  CAS-BOT-BC491834  Calochortus leichtlinii John Thomas Howell 1962-6-18 37768 Plumas Sirra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC491835  Calochortus leichtlinii John Thomas Howell 1967-7-11 43310 Plumas About 3 miles southeast of Mt. Hough 1706 Comment
  CAS-BOT-BC496985  Camassia leichtlinii subsp. suksdorfii John Thomas Howell 1967-6-23 42713 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC496989  Camassia leichtlinii subsp. suksdorfii John Thomas Howell; T. C. Fuller; G. D. Barbe 1966-7-28 54386 Plumas Boggy slope 0.25 miles east of Bucks Summit on road to Quincy 1670 Comment
  CAS-BOT-BC497559  Camassia quamash subsp. breviflora John Thomas Howell 1960-7-23 35957 Plumas Plants of Lassen Volcanic National Park, near Soda Springs, Drakesbad 1828 Comment
  CAS-BOT-BC499834  Orobanche corymbosa subsp. mutabilis John Thomas Howell 1977-8-11 52696 Plumas Sierra Nevada: N end of Frenchmans Reservoir 1706 Comment
  CAS-BOT-BC502162  Dichelostemma congestum John Thomas Howell 1961-6-21 36617 Plumas Greenville; Sierra Nevada 1097 Comment
  CAS-BOT-BC502164  Dichelostemma congestum John Thomas Howell 1977-6-21 52381 Plumas Transition Zone forest in region of schistose rocks, Seneca; Sierra Nevada 1097 Comment
  CAS-BOT-BC502165  Dichelostemma congestum John Thomas Howell; H. Keith Wagnon 1980-5-26 53595 Plumas North Fork of Feather River between the mouth of East Branch and Caribou; Sierra Nevada 792 Comment
  CAS-BOT-BC502662  Dichelostemma multiflorum John Thomas Howell; Gordon H. True 1967-7-11 43298 Plumas 2.5 miles from Quincy Junction on road to Mt. Hough 1249 Comment
  CAS-BOT-BC502664  Dichelostemma multiflorum John Thomas Howell 1975-6-16 51150 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC502665  Dichelostemma multiflorum John Thomas Howell 1973-7-10 49748 Plumas Near Greenville 1097 Comment
  CAS-BOT-BC506203  Fritillaria micrantha John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54216 Plumas About 4 miles southeast of Mt. Hough on the road to Quincy 1584 Comment
  CAS-BOT-BC508333  Hastingsia alba John Thomas Howell 1951-6-26 27533 Plumas Feather River Canyon, Sierra Nevada 853 Comment
  CAS-BOT-BC508336  Hastingsia alba John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54145 Plumas 2.65 miles west of Round Valley Reservoir dam, Sierra Nevada 1569 Comment
  CAS-BOT-BC508374  Leucocrinum montanum John Thomas Howell 1978-4-19 52864 Plumas Sierra Valley on Dyson Lane sw of Vinton, Sierra Nevada Comment
  CAS-BOT-BC509314  Lilium kelleyanum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1969-6-24 2422 Plumas Between mouth of Butterfly Creek and Valley proper. 914 Comment
  CAS-BOT-BC509315  Lilium kelleyanum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-12 2116 Plumas At spring 1127 Comment
  CAS-BOT-BC509318  Lilium kelleyanum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1969-6-24 2422 Plumas Fern Glen 1112 Comment
  CAS-BOT-BC509319  Lilium kelleyanum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54144 Plumas 2.65 miles west of Round Valley Reservoir dam 1569 Comment
  CAS-BOT-BC509320  Lilium kelleyanum John Thomas Howell 1960-7-21 35862 Plumas On trail to Little Willow Lake 1767 Comment
  CAS-BOT-BC512873  Maianthemum stellatum John Thomas Howell 1960-7-20 35737 Plumas Boiling Springs Lake.. Drakesbad 1828 Comment
  CAS-BOT-BC517427  Streptopus amplexifolius John Thomas Howell 1963-6-3 39400 Plumas Sierra Nevada, Butterfly Valley Comment
  CAS-BOT-BC519389  Triantha occidentalis subsp. occidentalis John Thomas Howell 1924-8-10 616 Plumas Butterfly Valley near Quincy Comment
  CAS-BOT-BC521565  Triteleia hyacinthina John Thomas Howell 1955-7-20 30851 Plumas Mohawk 1371 Comment
  CAS-BOT-BC521568  Triteleia hyacinthina John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54348 Plumas 4.8 miles northwest of Antelope Reservoir 1661 Comment
  CAS-BOT-BC521569  Triteleia hyacinthina John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54101 Plumas 10.6 miles northeast of La Porte on road to Quincy 1889 Comment
  CAS-BOT-BC522024  Triteleia hyacinthina John Thomas Howell 1960-7-18 35526 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC522025  Triteleia hyacinthina John Thomas Howell 1960-7-21 35827 Plumas Northwest of Willow Lake, Lassen Volcanic National Park 1706 Comment
  CAS-BOT-BC526475  Triteleia montana John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54099 Plumas Sierra Nevada, 10.6 miles northeast of La Porte on road to Quincy 1889 Comment
  CAS-BOT-BC527250  Lemna John Thomas Howell 1977-8-11 52689 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir, Sierra Nevada 1706 Comment
  CAS-BOT-BC527554  Triteleia montana John Thomas Howell; Gordon H. True No date on label 43374 Plumas About 2 miles southeast of Mt. Hough 1828 Comment
  CAS-BOT-BC528890  Veratrum californicum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-12 2119 Plumas Sierra Nevada, Butterfly Botanical Area and Vicinity, at spring 1127 Comment
  CAS-BOT-BC528895  Veratrum californicum John Thomas Howell 1960-8-20 36278 Plumas Lassen Volcanic National Park; Drakesbad 1828 Comment
  CAS-BOT-BC529129  Xerophyllum tenax John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54189 Plumas 4 miles by road N. of Grays Flat on the road to Long Valley 1447 Comment
  CAS-BOT-BC533082  Zigadenus venenosus John Thomas Howell 1960-7-22 35926 Plumas Devils Kitchen, near Drakesbad; Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC533083  Zigadenus venenosus John Thomas Howell 1960-7-19 35702 Plumas Drakesbad; Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC533132  Zigadenus paniculatus John Thomas Howell 1961-6-21 36645 Plumas Sierra Nevada, Greenville 1097 Comment
  CAS-BOT-BC534972  Drymocallis glandulosa var. reflexa John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54156 Plumas Sierra Nevada, 3.25 miles W of Round Valley Reservoir dam 1633 Comment
  CAS-BOT-BC536540  Viola glabella John Thomas Howell 1960-7-21 35795 Plumas Lassen Volcanic National Park, Drakesbad 1828 Comment
  CAS-BOT-BC536836  Viola glabella John Thomas Howell 1967-6-23 42682 Plumas Sierra Nevada: Canyon of Butterfly Creek 1036 Comment
  CAS-BOT-BC537874  Horkelia fusca var. parviflora John Thomas Howell 1951-6-27 27594 Plumas Sierra Nevada: McRae Meadows 1981 Comment
  CAS-BOT-BC539679  Alnus rhombifolia John Thomas Howell 1959-9-24 34943 Plumas Sierra Nevada: Spanish Creek at mouth of Butterfly Creek 1798 Comment
  CAS-BOT-BC540035  Potentilla biennis John Thomas Howell 1977-8-11 52687 Plumas Sierra Nevada, Canyon of Little Last Chance Creek, between Chilcoot and Frenchmans Reserovoir 1706 Comment
  CAS-BOT-BC540403  Potentilla gracilis var. fastigiata John Thomas Howell 1973-7-9 49711 Plumas Sierra Nevada, Crescent Mills 1066 Comment
  CAS-BOT-BC540406  Potentilla gracilis var. fastigiata John Thomas Howell 1955-7-20 30831 Plumas Sierra Nevada, Mohawk 1371 Comment
  CAS-BOT-BC540407  Potentilla gracilis var. fastigiata John Thomas Howell 1961-6-21 36689 Plumas Sierra Nevada, Greenville 1097 Comment
  CAS-BOT-BC540409  Potentilla gracilis var. fastigiata John Thomas Howell 1955-7-20 30832 Plumas Sierra Nevada, Mohawk 1371 Comment
  CAS-BOT-BC540410  Potentilla gracilis var. fastigiata John Thomas Howell; Gordon H. True 1967-6-11 42574 Plumas Sierra Nevada, meadow at Qunicy 1036 Comment
  CAS-BOT-BC54327  Erysimum capitatum John Thomas Howell; Gordon H. True 1967-5-9 42209 Plumas Sierra Nevada. Lewisia Rock, 3.5 miles southwest of Belden, Feather River Canyon. 609 Comment
  CAS-BOT-BC55406  Hirschfeldia incana John Thomas Howell 1951-8-19 28189 Plumas Sierra Nevada. Greenville. 1097 Comment
  CAS-BOT-BC55407  Hirschfeldia incana John Thomas Howell 1959-9-21 34781 Plumas Sierra Nevada. North Fork Feather River near Belden. 701 Comment
  CAS-BOT-BC57003  Equisetum arvense John Thomas Howell; Gordon H. True 1967-7-9 43257 Plumas North Fork of Feather River 4.3 miles southwest of Caribou 792 Comment
  CAS-BOT-BC57388  Equisetum laevigatum John Thomas Howell 1960-7-22 35886 Plumas Drakesbad, Lassen Volcanic Nat'l. Park 1737 Comment
  CAS-BOT-BC57390  Equisetum laevigatum John Thomas Howell 1960-7-24 35994 Plumas Roadside, Chester 1371 Comment
  CAS-BOT-BC57395  Equisetum laevigatum John Thomas Howell 1951-6-29 27742 Plumas Near Spring Garden 1219 Comment
  CAS-BOT-BC57399  Equisetum laevigatum John Thomas Howell 1960-7-24 35994 Plumas Chester 1371 Comment
  CAS-BOT-BC57513  Equisetum telmateia John Thomas Howell; Gordon H. True 1969-4-8 45485 Plumas Feather River Canyon at Storrie 548 Comment
  CAS-BOT-BC58025  Equisetum John Thomas Howell 1967-6-22 42648 Plumas Sierra Nevada, Rock Creek Power House, Canyon of the Feather River North Fork. 548 Comment
  CAS-BOT-BC59320  Antennaria argentea John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54232 Plumas About 4 miles southeast of Mt. Hough on the road to Quincy 1645 Comment
  CAS-BOT-BC60677  Phoenicaulis cheiranthoides John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54255 Plumas Sierra Nevada. About 2.5 miles southeast of Mount Hough on the road to Quincy. 1798 Comment
  CAS-BOT-BC62195  Selaginella wallacei John Thomas Howell 1959-9-26 35082 Plumas Storrie 548 Comment
  CAS-BOT-BC62196  Selaginella wallacei John Thomas Howell 1959-9-26 35075 Plumas 3.2 mi. w. of Belden Comment
  CAS-BOT-BC63849  Sedum spathulifolium John Thomas Howell 1962-6-16 37634 Plumas Lewisia Rock, North Fork Feather River 640 Comment
  CAS-BOT-BC66092  Athyrium filix-femina var. cyclosorum John Thomas Howell 1960-7-21 35851 Plumas nw. of Willow Lake 1676 Comment
  CAS-BOT-BC66526  Thysanocarpus curvipes John Thomas Howell 1963-6-4 39401 Plumas Sierra Nevada. Neaer Cromberg. Comment
  CAS-BOT-BC67575  Pellaea mucronata var. californica John Thomas Howell 1967-6-22 42660 Plumas Sierra Nevada - Canyon of the Feather River North Fork, granite near mouth of Chambers Creek. 609 Comment
  CAS-BOT-BC67586  Pellaea mucronata John Thomas Howell 1967-6-22 42661 Plumas Sierra Nevada Canyon of the Feater River North Fork, near mout of Chambers Creek. 609 Comment
  CAS-BOT-BC70675  Cystopteris fragilis John Thomas Howell 1960-7-20 35749 Plumas Boiling Springs Lake 1798 Comment
  CAS-BOT-BC71085  Marsilea vestita John Thomas Howell 1962-6-19 37856 Plumas Alkaline Flat, 5.5 miles E. of Beckwourth 1493 Comment
  CAS-BOT-BC72359  Polystichum imbricans subsp. imbricans John Thomas Howell 1959-9-26 35041 Plumas Slaty Rocks near Keddie 1005 Comment
  CAS-BOT-BC72360  Polystichum imbricans subsp. imbricans John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54135 Plumas Round Valley Reservoir dam 1371 Comment
  CAS-BOT-BC72610  Pteridium aquilinum John Thomas Howell 1959-9-21 34803 Plumas 4.6 miles from Virgilia on road to Quincy Comment
  CAS-BOT-BC74313  Raphanus sativus John Thomas Howell 1961-9-24 36925 Plumas Sierra Nevada. Beckwourth. 1487 Comment
  CAS-BOT-BC74628  Rorippa curvisiliqua John Thomas Howell 1961-9-23 36873 Plumas Sierra Nevada. Cooks Creek near Engelmine. 1082 Comment
  CAS-BOT-BC74630  Rorippa curvisiliqua John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54282 Plumas Sierra Nevada. About 1.3 mile southeast of Mount Hough on the road to Quincy. 2042 Comment
  CAS-BOT-BC74871  Rorippa tenerrima John Thomas Howell 1976-7-14 51827 Plumas Sierra Nevada. Quincy. 1051 Comment
  CAS-BOT-BC74965  Sinapis arvensis John Thomas Howell 1951-8-19 28190 Plumas Sierra Nevada. Greenville. 1097 Comment
  CAS-BOT-BC74966  Sinapis arvensis John Thomas Howell 1962-6-18 37815 Plumas Sierra Nevada. Sierra Valley, 5 miles south of Beckwourth. 1493 Comment
  CAS-BOT-BC76837  Polypodium glycyrrhiza John Thomas Howell; Gordon H. True 1967-5-9 42212 Plumas Sierra Nevada - Lewisia Rock, 3.5 miles southwest of Belden, Feather River Canyon 609 Comment
  CAS-BOT-BC77078  Pentagramma triangularis subsp. triangularis John Thomas Howell 1967-6-22 42657 Plumas Sierra Nevada - Canyon of the Feather River North Fork, near mouth of Chambers Creek 609 Comment
  CAS-BOT-BC7746  Carex integra John Thomas Howell 1960-7-21 35799 Plumas Drakesbad. 1828 Comment
  CAS-BOT-BC77982  Abies concolor John Thomas Howell 1960-7-18 35504 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC78095  Abies magnifica John Thomas Howell 1960-7-20 35776 Plumas Between Boiling Springs Lake and Terminal Geyser 1859 Comment
  CAS-BOT-BC82225  Arnica chamissonis John Thomas Howell 1977-8-11 52701 Plumas at north end of Frenchmans Reservoir 1706 Comment
  CAS-BOT-BC85757  Calocedrus decurrens John Thomas Howell 1960-7-20 35752 Plumas Lassen Volcanic National Park, Boiling Springs Lake 1798 Comment
  CAS-BOT-BC88836  Lepidium campestre John Thomas Howell; Gordon H. True 1967-6-11 42581 Plumas Sierra Nevada. Meadow at Quincy. 1036 Comment
  CAS-BOT-BC88847  Lepidium campestre John Thomas Howell 1967-6-23 42689 Plumas Sierra Nevada. Butterfly Valley. 1066 Comment
  CAS-BOT-BC97559  Symphyotrichum ascendens John Thomas Howell 1959-9-24 34950 Plumas Spanish Valley near Quincy 1051 Comment
  CAS-BOT-BC98489  Symphyotrichum spathulatum John Thomas Howell 1977-8-11 52700 Plumas Sierra Nevada - north end of Frenchmans Reservoir 1706 Comment
  CAS-BOT-BC98900  Symphyotrichum spathulatum var. intermedium John Thomas Howell 1959-9-21 34757 Plumas Sand bars of N. Fk. Feather River near Belden 701 Comment
  CDA2989  Chenopodium album var. album J. T. Howell 1959-9-26 35047 Plumas Near Keddie. Comment
  CDA3087  Chenopodium strictum var. glaucophyllum J. T. Howell 1959-9-21 34812 Plumas Indian Creek Canyon. Comment
  CDA3097  Chenopodium strictum J. T. Howell 1959-9-23 34894 Plumas Chester. Comment
  CDA3114  Chenopodium pumilio J. T. Howell, G. H. True 1974-7-29 50629 Plumas Quincy. Comment
  CHSC117758  Carex scoparia var. scoparia Jim Belsher- Howe; Rye Pamplin 2016-8-19 Plumas Snake Lake. Drying edge of shallow lake margin. 1205 Comment
  JEPS28121  Mimulus suksdorfii John Thomas Howell 1962-6-19 37870 Plumas 5.8 mi e Beckwourth; Sierra Nevada 1493 Comment
  JEPS29556  Galium trifidum var. pusillum John Thomas Howell 1960-6-23 35960 Plumas Drakesbad Lassen Volcanic National Park 1676 Comment
  JEPS29566  Chaenactis douglasii var. douglasii J. Thomas Howell 1960-8-20 36285 Plumas near Drakesbad (Kelley Camp, near Lassen Volcanic National Park); Lassen Volcanic National Park 1615 Comment
  JEPS29572  Gnaphalium palustre John Thomas Howell 1960-7-21 35836 Plumas open places among willows nw of Willow Lake 1676 Comment
  POM193913  Stephanomeria lactucina J. T. Howell 1924-8-11 632 Plumas 2 miles E of Chester on road to Westwood. 1311 Comment
  RSA0000487  Poa sierrae J. T. Howell, Gordon H. True 1967-5-9 42204 Plumas 3.5 mi SW of Belden, Feather River Canyon 610 Comment
  RSA0000488  Poa sierrae J. T. Howell, Gordon H. True 1967-5-9 42204 Plumas 3.5 mi SW of Belden, Feather River Canyon 610 Comment
  RSA0059904  Clarkia mildrediae subsp. mildrediae J. T. Howell 1951-6-29 27754 Plumas Feather River Canyon 549 Comment
  RSA0079805  Carex rossii John Thomas Howell 1960-7-17 35490 Plumas Drakesbad. Lassen Volcanic National Park. 1677 Comment
  RSA0123900  Erythranthe willisii J. T. Howell 1951-6-26 27540 Plumas Feather River Canyon; Sierra Nevada. 854 Comment
  RSA0126161  Arabis glabra J. T. Howell, Gordon H. True, Walter Knight, I. Knight 1967-7-10 2129 Plumas Butterfly Botanical Area and Vicinity. 1128 Comment
  RSA128962  Amaranthus albus J. T. Howell 1951-8-20 s.n. Plumas Near Taylorsville Comment
  RSA201289  Urtica dioica subsp. holosericea J. T. Howell 1959-9-23 34893 Plumas At Benner Creek on road from Chester to Juniper Lake. 1524 Comment
  RSA201488B  Plagiobothrys tenellus J. T. Howell, G. True 1968-6-10 44538 Plumas American Valley at Quincy. 1037 Comment
  RSA512852  Boisduvalia densiflora var. densiflora J. T. Howell 1961-9-24 36904 Plumas Sierra Nevada: Feather River bed southwest of Beckworth. 1488 Comment
  RSA512853  Boisduvalia glabella J. T. Howell 1961-9-24 36903 Plumas Sierra Nevada: Feather River bed southwest of Beckworth. 1488 Comment
  RSA515526  Epilobium foliosum J. T. Howell, H. Keith Wagnon 1980-5-28 53698 Plumas Sierra Nevada: Serpentine Canyon about 3 miles east of Rich Bar, East Branch North Fork Feather River. 854 Comment
  RSA584285  Luzula comosa J. T. Howell, T. C. Fuller, G. D. Barbe 1981-6-22 54098 Plumas 10.6 miles northeast of La Porte on road to Quincy. 1890 Comment
  RSA584783  Madia elegans subsp. elegans J. T. Howell 1961-9-25 36966 Plumas Sierra Nevada: Vinton 1507 Comment
  RSA595067  Lupinus formosus var. formosus J. T. Howell 1973-7-9 49715 Plumas Crescent Mills. 1067 Comment
  RSA595070  Cuscuta californica J. T. Howell, G. D. Fuller, G. D. Barbe 1981-6-26 54407 Plumas South end of Walker Plain near Buckeye. About 8 miles southwest of Bucks Lake on road to Oroville. 1524 Comment
  RSA88081  Phacelia mutabilis J. T. Howell 1951-6-26 27531 Plumas Near Rich Bar. 793 Comment
  RSA88120  Antirrhinum vexillocalyculatum subsp. intermedium J. T. Howell 1951-6-26 27544 Plumas Feather River Canyon. 854 Comment
  RSA88463  Polygonum douglasii J. T. Howell 1951-8-19 28193 Plumas Greenville. 1098 Comment
  RSA88595  Eriogonum pedunculatum J. T. Howell 1951-6-26 27541 Plumas Feather River Canyon 854 Comment
  RSA93300  Downingia bacigalupii J. T. Howell 1926-7-30 2166 Plumas Near Prattville on Lake Almonor Comment
  RSA95424  Silene douglasii J. T. Howell 1951-6-28 27711 Plumas Eureka Peak. 2195 Comment
  RSA95438  Ranunculus occidentalis var. ultramontanus J. T. Howell 1951-6-27 27621 Plumas Jamison Creek 1829 Comment
  RSA95439  Delphinium nuttallianum J. T. Howell 1951-6-28 27698 Plumas Eureka Peak. 1982 Comment
  RSA95441  Delphinium patens J. T. Howell 1951-6-27 27579 Plumas McRae Meadow. 1982 Comment
  RSA95508  Hastingsia alba J. T. Howell 1951-6-26 27533 Plumas Feather River Canyon 854 Comment
  RSA95512  Juncus tenuis J. T. Howell 1951-6-27 27618 Plumas Jamison Creek 1829 Comment
  RSA95515  Juncus ensifolius J. T. Howell 1951-8-20 28199 Plumas Indian Valley. 1067 Comment
  RSA95526  Cryptantha simulans J. T. Howell 1951-6-27 27572 Plumas Johnsville; Sierra Nevada 1585 Comment
  RSA95563  Calycanthus occidentalis J. T. Howell 1951-8-19 28172 Plumas 3 miles E of Rich Bar. 854 Comment
  RSA97918  Carex gigas J. T. Howell 1951-6-26 27535 Plumas Feather River Canyon. 854 Comment
  RSA97965  Carex subfusca J. T. Howell 1951-6-27 27600 Plumas McRae Meadow. 1982 Comment
  SD103536  Heterotheca villosa var. minor Darley Howe 1978-7-16 5080 Plumas Along highway 49, 3 miles north of Loyalton. 1463 Comment
  SD112282  Erigeron divergens Darley F. Howe 1966-8-23 4296 Plumas 22 miles south of Quincy on Highway 89. 1310 Comment
  SD130383  Carex hassei John Thomas Howell 1962-6-16 37641 Plumas Sierra Nevada, Feather River North Fork on road to Caribou 730 Comment
  SD130492  Gayophytum diffusum subsp. parviflorum John Thomas Howell 1974-9-20 50893 Plumas 7.0 miles from Quincy on road to Blairsden. 1096 Comment
  SD130960  Carex brainerdii John Thomas Howell, Gordon H. True 1967-5-7 42186 Plumas Sierra Nevada; Injin Jim Campground at confluence of Granite Creek and North Fork of Feather River. 609 Comment
  SD135541  Ivesia aperta John Thomas Howell. 1975-7-22 51379 Plumas Sierra Nevada, Sierra Valley near Beckwourth 1493 Comment
  SD50758  Angelica arguta var. breweri Darley F. Howe 1959-8-3 2784 Plumas Thirty miles north of Quincy on Hwy 89. 1370 Comment
  SD51230  Artemisia douglasiana Darley F. Howe 1960-9-21 2990 Plumas 6 miles north of Greenville on Hwy 89. Comment
  SD61106  Agastache urticifolia D. F. Howe 1964-7-29 3898 Plumas Plumas National Forest, Gold Lake Lodge 1981 Comment
  SD61135  Silene bridgesii Darley F. Howe 1964-7-29 3893 Plumas Gold Lake Lodge, Plumas National Forest. 1980 Comment
  SD71012  Ericameria nauseosa var. speciosa John Thomas Howell 1960-7-24 35991 Plumas Kelly Camp, just south of Lassen Park. 1615 Comment
  SD71436  Chenopodium strictum var. glaucophyllum John Thomas Howell Dept. 25, 1959 35006 Plumas Sierra Valley near Beckworth, Plumas Co. 1493 Comment
  SD72058  Plagiobothrys tenellus John Thomas Howell, Gordon H. True 1968-6-10 44538 Plumas American Valley at Quincy 1036 Comment
  SDSU10786  Mimulus lewisii D. F. Howe 1964-7-29 3892 Plumas Gold Lake Lodge, Plumas National Forest. 1981 Comment
  SDSU2303  Angelica breweri D. F. Howe 1959-8-3 2784 Plumas 30 miles north of Quincy on #89 by stream. 1372 Comment
  SDSU2669  Helianthella californica var. nevadensis D. F. Howe 1964-7-29 3894 Plumas Gold Lake Lodge, Plumas National Forest. 1981 Comment
  SDSU3012  Silene bridgesii D. F. Howe 1964-7-29 3893 Plumas Gold Lake Lodge, Plumas National Forest. 1981 Comment
  SDSU307  Chrysopsis villosa var. hispida D. F Howe 1978-7-16 5080 Plumas Route 49, 3 miles north of Loyalton, Plumas Co. 1463 Comment
  SDSU4489  Silene douglasii D. F. Howe 1964-8-4 3935 Plumas Near Gold Lake Lodge, Plumas National Forest. 1981 Comment
  SDSU6366  Ericameria parryi var. latior D. F. Howe 1959-8-3 2782 Plumas Roadside, 42 mi, north of Quincy. 1372 Comment
  SDSU6520  Eriogonum elatum D. F. Howe 1978-7-16 5079 Plumas Rte 49 3 miles north of Loyalton. 1463 Comment
  SEINET10460755  Porterella carnosula Howell 1963-6-4 Howell 39405 Plumas Marble Hot Springs, Sierra Valley Comment
  SEINET10461194  Nemacladus interior Howell 1951-6-29 Howell 27761 Plumas Feather River Canyon 549 Comment
  SEINET10463000  Campanula prenanthoides Howell 1926-7-31 Howell 2178 Plumas Near Prattville 1463 Comment
  SEINET10463123  Campanula prenanthoides Howell 1959-9-26 Howell 35045 Plumas NEAR KEDDIE 3300 Comment
  SEINET10464928  Nemacladus John Thomas Howell, Gordon H. True 1967-7-11 Howell 43281 Plumas 2 miles from Quincy Junction on road to Mount Hough 1219 Comment
  SEINET10488892  Lupinus sellulus John Thomas Howell 1955-7-19 Howell 30811 Plumas Vinton, California. 1509 Comment
  SEINET10509113  Poa sierrae John Thomas Howell, Gordon H. True 1967-5-9 Howell 42204 Plumas Feather River Canyon Comment
  SEINET10509794  Agropyron trichophorum Thomas J. Howell, Gordon H. True 1968-6-10 Howell 44544 Plumas Sierra Nevada, Quincy. In meadows. Comment
  SEINET10554310  Elymus glaucus John Thomas Howell 1961-6-21 Howell 36674 Plumas Greenville. 1097 Comment
  SEINET10554337  Elymus glaucus John Thomas Howell 1975-7-22 Howell 51373 Plumas In the Transition Life Zone, 2 miles northwest of Spring Garden. In woods adjacent to but not on serpentine. 1173 Comment
  SEINET10555790  Eragrostis pilosa John Thomas Howell 1955-7-19 Howell 30734 Plumas Portola. 1478 Comment
  SEINET10582742  Castilleja applegatei var. fragilis John Thomas Howell, Gordon H. True; Margaret J. Williams 1973-7-31 Howell 50126 Plumas On road from Janesville to Thompson Peak, Diamond Range. 1981 Comment
  SEINET10596607  Oryzopsis hymenoides John Thomas Howell 1962-6-19 Howell 37841 Plumas The Buttes, near Sierra Valley. 1494 Comment
  SEINET10607091  Koeleria macrantha John Thomas Howell 1962-6-18 Howell 37779 Plumas Sierra valley near Beckwourth. 1487 Comment
  SEINET10610747  Stipa occidentalis John Thomas Howell 1967-7-11 Howell 43336 Plumas Summit Ridge of Mt. Hough, (metamorphic area). 2195 Comment
  SEINET10765289  Eremogone cliftonii John Thomas Howell 1967-6-23 Howell 42741 Plumas Near Rogers Flat bridge, North Fork Feather River. In gravel of disintegrating granite. 610 Comment
  SEINET10855445  Phalaris arundinacea John Thomas Howell 1961-9-23 Howell 36827 Plumas Indian Valley, Sierra Nevada 1082 Comment
  SEINET10893570  Poa nevadensis John Thomas Howell 1962-6-18 Howell 37757 Plumas Sierra Valley near Beckwourth. Culm-ligule ca. 4 mm. 1487 Comment
  SEINET10934906  Poa sierrae John Thomas Howell, Gordon H. True 1967-5-9 Howell 42204 Plumas 3.5 mi. SW of Belden, Feather River Canyon Comment
  SEINET10963332  Elymus repens John Thomas Howell 1959-9-25 Howell 35036 Plumas Quincy. 1036 Comment
  SEINET11044476  Carex whitneyi J. T. Howell 1977-1 52407 Plumas Sierra Nevada, on the peninsula of Lake Almanor 1372 Comment
  SEINET11601444 Image available Madia gracilis J. T. Howell, T. C. Fuller, G. D. Barbe 1981-6-24 54252 Plumas About 2.5 miles southeast of Mt. Hough on the road to Quincy 1798 Comment
  SEINET5323260  Botrychium multifidum J. T. Howell 1963-6-3 39397 Plumas Butterfly Valley. 1036 Comment
  SEINET5765231  Garrya fremontii J. T. Howell 1959-9-26 35043 Plumas Near Keddie. 1006 Comment
  SEINET6031530  Equisetum laevigatum J. T. Howell, G. H. True, Jr. 1968-6-10 44548 Plumas Quincy 1036 Comment
  SEINET6031840  Equisetum telmateia J. T. Howell, G. H. True., Jr. 1969-4-8 45485 Plumas Feather River Canyon at Storrie 549 Comment
  SEINET7292780 Image available Elysitanion hansenii John Thomas Howell 1977-1 52415 Plumas Sierra Nevada; Peninsula of Lake Almanor 1372 Comment
  SEINET7294128 Image available Poa secunda subsp. secunda John Thomas Howell 1962-1 37773 Plumas Sierra Valley near Beckwourth, .75 mi. sw. of B. on road to Sierraville. 1487 Comment
  SEINET7297007 Image available Phalaris arundinacea John Thomas Howell 1973-1 49713 Plumas Crescent Mills 1067 Comment
  SEINET7297581 Image available X Stiporyzopsis bloomeri John Thomas Howell 1962-1 37841 Plumas The Buttes, n. Sierra Valley 1494 Comment
  SEINET7485361 Image available Carex lemmonii John Thomas Howell 1960-1 35946 Plumas Drakesbad 1676 Comment
  SEINET7549695 Image available Carex angustata John Thomas Howell 1960-7-23 35945 Plumas Lassen Volcanic National Park. Meadow near Soda Spring, Drakesbad. 1676 Comment
  SEINET7564689 Image available Carex lenticularis var. lipocarpa John Thomas Howell 1951-6-28 27733 Plumas Eureka Lake. Comment
  SEINET7566773 Image available Carex mariposana John Thomas Howell, T. C. Fuller, G. D. Barbe 1981-6-25 54343 a Plumas 2.8 miles north-northeast of Englemine on Diamond Mt. Road. 1341 Comment
  SEINET7577155 Image available Carex subfusca John Thomas Howell, T. C. Fuller; G. D. Barbe 1981-6-24 54237 Plumas About 4 miles southeast of Mt. Hough on the road to Quincy. 1646 Comment
  SEINET7577187 Image available Carex subfusca John Thomas Howell, T. C. Fuller; G. D. Barbe 1981-6-26 54371 Plumas 0.75 miles northeast of Bucks Summit on road to Quincy. 1600 Comment
  SEINET7590140 Image available Carex fracta John Thomas Howell 1960-7-19 35676 Plumas Lassen Volcanic National Park, Drakesbad. 1676 Comment
  SEINET8079196 Image available Ericameria nauseosa var. speciosa J. T. Howell 1959-9-25 s.n. Plumas 2 miles E of Portola 1484 Comment
  SEINET8079214 Image available Ericameria nauseosa var. speciosa J. T. Howell 1974-9-20 s.n. Plumas Near Spring Garden 1158 Comment
  SEINET8079306 Image available Ericameria parryi var. nevadensis J. T. Howell 1959-9-24 s.n. Plumas Near Blairsden 1341 Comment
  SEINET8338124  Bromus carinatus John Thomas Howell 1960-7-23 35932 Plumas Drakesbad. Comment
  SEINET8466115 Image available Brodiaea gracilis John Thomas Howell, Gordon H. True 43374 Plumas About 2 miles southeast of Mt. Hough. Plumas County, California 1829 Comment
  SEINET8667239 Image available Erigeron eatonii var. plantagineus J. T. Howell 1962-6-18 s.n. Plumas Sierra Valley near Beckwourth 1487 Comment
  UC1026453  Juncus nevadensis John Thomas Howell 1951-6-28 27735 Plumas between Eureka Lake and Johnsville 1676 Comment
  UC2015880  Carex bolanderi John Thomas Howell 1975-6-15 51121 Plumas North Fork Feather River near Storrie. Comment
  UC908379  Navarretia divaricata J. T. Howell 1926-6-26 2124 Plumas 1 mi s Prattville; Lake Almanor Comment
  UCD100549  Eriogonum nudum var. oblongifolium John Thomas Howell 1973-7-9 49721 Plumas Round Valley. 1371 Comment
  UCD100624  Eriogonum nudum var. nudum John Thomas Howell 1973-7-9 49720 Plumas Round Valley. 1371 Comment
  UCD101526  Eriogonum vimineum John Thomas Howell 1959-9-26 35079 Plumas 5 miles northeast of Storrie. 609 Comment
  UCD121028  Plagiobothrys tenellus John Thomas Howell; Gordon H. True 1968-6-10 44538 Plumas American Valley at Quincy. 1036 Comment
  UCD125334  Prunella vulgaris var. lanceolata John Thomas Howell 1960-7-21 35793 Plumas Lassen Volcanic National Park, Drakesbad. 1676 Comment
  UCD128969  Anthemis tinctoria John Thomas Howell 1960-7-24 35995 Plumas Chester. 1371 Comment
  UCD51446  Achnatherum X bloomeri John Thomas Howell 1962-6-19 37841 Plumas The Buttes, n. Sierra Valley. 1493 Comment
  UCD97196  Amaranthus blitoides John Thomas Howell 1959-9-25 35002 Plumas 2 miles east of Portola. 1484 Comment



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