Search Results — 2000 specimen records retrieved (1448 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)
Results for search: County=PLUMAS; Source=All; Collector=Howell;   

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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/consortium/).
 Records are made available under the CCH Data Use Terms.
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-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-BC100823  Chrysothamnus viscidiflorus subsp. viscidiflorus John Thomas Howell 1977-8-11 52671 A Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir 1706 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-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-BC103883  Salix exigua John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54187 Plumas Rush Creek 1402 Comment
  CAS-BOT-BC103885  Salix exigua John Thomas Howell 36928 Plumas Feather River bed, Portola 1478 Comment
  CAS-BOT-BC103886  Salix exigua John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2220 Plumas Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC104603  Quercus vacciniifolia John Thomas Howell 1960-7-17 35500 Plumas Lassen Volcanic National Park, Drakesbad 1828 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-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-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-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-BC107160  Salix lasiolepis var. bigelovii John Thomas Howell; T. C. Fuller 1981-6-25 54353 Plumas 4.8 miles northwest of Antelope Reservior - Sierra Nevada 1661 Comment
  CAS-BOT-BC107968  Salix geyeriana John Thomas Howell 1955-7-20 30840 Plumas Mohawk 1371 Comment
  CAS-BOT-BC108706  Ribes cereum John Thomas Howell; Gordon H. True 1973-7-31 50125 Plumas Sierra Nevada. On road from Janesville to Thompson Peak, Diamond Range. 1981 Comment
  CAS-BOT-BC109297  Rumex paucifolius John Thomas Howell 1962-6-18 37770 Plumas Sierra Nevada. Sierra Valley near Beckwourth. 1487 Comment
  CAS-BOT-BC110187  Carex buxbaumii John Thomas Howell 1976-7-15 51872 Plumas Sierra Nevada. Snake Lake, about 4 miles northwest of Quincy. 1219 Comment
  CAS-BOT-BC11027  Mimulus suksdorfii John Thomas Howell 1962-6-18 37802 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC110541  Asarum John Thomas Howell 1977-6-21 52380 Plumas Sierra Nevada. Seneca. 1097 Comment
  CAS-BOT-BC110554  Eschscholzia John Thomas Howell 1959-9-24 34964 Plumas Sierra Nevada. Sierra Valley near Beckwourth. 1478 Comment
  CAS-BOT-BC110860  Scirpus diffusus John Thomas Howell 1976-7-15 51870 Plumas Snake Lake, about 4 miles northwest of Quincy 1219 Comment
  CAS-BOT-BC110862  Scirpus diffusus John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1968-6-11 2391 Plumas In wet area of Butterfly Valley Comment
  CAS-BOT-BC111002  Scirpus microcarpus John Thomas Howell 1961-9-22 36795 Plumas Work Creek, Greenville 1088 Comment
  CAS-BOT-BC111269  Schoenoplectus acutus var. occidentalis John Thomas Howell 1961-9-23 36857 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC111270  Schoenoplectus acutus var. occidentalis John Thomas Howell 1961-9-25 36943 Plumas Feather River bed, Portola 1478 Comment
  CAS-BOT-BC111571  Schoenoplectus americanus John Thomas Howell 1960-7-19 35642 Plumas Wet slope near hot springs, Drakesbad. Plants of Lassen Volcanic National Park. Comment
  CAS-BOT-BC111572  Schoenoplectus americanus John Thomas Howell 1959-9-22 34867 Plumas On hot spring terrases, Drakesbad. 1737 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-BC113392  Eleocharis engelmannii var. detonsa John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-12 2146 Plumas Pond reservoir, Butterfly Botanical Area. 1127 Comment
  CAS-BOT-BC113395  Eleocharis engelmannii var. detonsa John Thomas Howell 1926-7-30 2158 Plumas Adjacent to Pond Reservoir. Butterfly Botanical Area. 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-BC113512  Eleocharis bella John Thomas Howell; Gordon H. True 1967-7-9 43266 Plumas Meadow at Quincy 1036 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-BC113876  Cyperus niger var. capitatus John Thomas Howell 1960-8-20 36275 Plumas Wet meadow, Drakesbad 1828 Comment
  CAS-BOT-BC114127  Cyperus squarrosus John Thomas Howell 1959-9-25 34987 Plumas Sandy beach of Feather River, Portola. 1478 Comment
  CAS-BOT-BC114131  Cyperus squarrosus John Thomas Howell 1926-7-26 2125 Plumas Near Prattville. 1371 Comment
  CAS-BOT-BC114935  Carex whitneyi John Thomas Howell 1951-6-27 27567 Plumas Johnsonville 1584 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-BC114994  Carex subfusca John Thomas Howell 1962-6-18 37752 Plumas Sierra Valley near Beckwourth. 1487 Comment
  CAS-BOT-BC114995  Carex subfusca John Thomas Howell 1960-7-22 35875 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC114996  Carex subfusca John Thomas Howell 1951-6-27 27600 Plumas McRae Meadow. 1981 Comment
  CAS-BOT-BC114998  Carex subfusca John Thomas Howell 1960-7-18 35565 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-BC115408  Carex utriculata John Thomas Howell 1967-6-23 42709 Plumas Butterfly Valley. 1066 Comment
  CAS-BOT-BC115409  Carex utriculata John Thomas Howell 1951-6-27 27605 Plumas McRae Meadow. 1981 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-BC116097  Delphinium nuttallianum J. T. Howell; Gordon H. True 1967-7-11 43325 Plumas Coniferous forest about 3 miles southeast of Mt. Hough 1706 Comment
  CAS-BOT-BC116103  Delphinium nuttallianum J. T. Howell 1951-6-28 27698 Plumas Eureka Peak 1981 Comment
  CAS-BOT-BC117369  Carex stipata var. stipata John Thomas Howell 1962-6-17 37654 Plumas Butterfly Valley. 1036 Comment
  CAS-BOT-BC117370  Carex stipata var. stipata John Thomas Howell 1976-7-15 51845 Plumas Snake Lake, ca 4 mi NW of Quincy 1219 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-BC118125  Carex rossii John Thomas Howell 1961-6-21 36635 Plumas Greenville 1097 Comment
  CAS-BOT-BC118126  Carex rossii John Thomas Howell 1951-6-28 27709 Plumas Eureka Peak 2255 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-BC119008  Carex pellita John Thomas Howell 1959-9-23 s.n. Plumas Meadow 3 mi from Juniper Lake on road to Chester. 1889 Comment
  CAS-BOT-BC119009  Carex pellita John Thomas Howell 1960-7-19 35654 Plumas Wet slope near hot springs, Drakesbad 1828 Comment
  CAS-BOT-BC119187  Carex pachystachya John Thomas Howell 1960-7-23 35958 A Plumas Meadow near Soda Spring., 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-BC121002  Paeonia brownii J. T. Howell; Gordon H. True 1967-7-11 43366 Plumas Southeast slope of Mt. Hough 2042 Comment
  CAS-BOT-BC121003  Paeonia brownii J. T. Howell 1962-6-17 37717 Plumas Portola 1463 Comment
  CAS-BOT-BC121004  Paeonia brownii J. T. Howell 1962-6-19 37849 Plumas The Buttes, near Sierra Valley. 1493 Comment
  CAS-BOT-BC121015  Paeonia brownii J. T. Howell 1955-7-19 30751 Plumas Beckwourth 1493 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-BC124802  Salix lemmonii John Thomas Howell 1967-6-23 42700 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC124803  Salix lemmonii John Thomas Howell 1961-9-25 36927 Plumas Feather River bed, Portola 1478 Comment
  CAS-BOT-BC124804  Salix lemmonii John Thomas Howell 1961-9-23 36829 Plumas Indian Valley 1082 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-BC125319  Salix lasiandra var. lasiandra John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-10 2200 Plumas Mouth of Butterfly Creek 883 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-BC127079  Agrostis exarata John Thomas Howell 1973-7-10 49736 Plumas Sierra Nevada. Near Greenville. 1097 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-BC127086  Agrostis exarata John Thomas Howell 1960-7-19 35664 Plumas Lassen Volcanic National Park. Drakesbad. 1828 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-BC127100  Agrostis exarata John Thomas Howell 1961-9-23 36867 Plumas Sierra Nevada. Indian Valley. 1082 Comment
  CAS-BOT-BC127103  Agrostis exarata John Thomas Howell 1951-6-29 27751 Plumas Feather River Canyon. 548 Comment
  CAS-BOT-BC127105  Agrostis exarata John Thomas Howell 1926-7-30 2152 Plumas Prattville. 1463 Comment
  CAS-BOT-BC127494  Agrostis capillaris John Thomas Howell 1955-7-19 30828 Plumas Sierra Nevada. Mohawk. 1371 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-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-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-BC128860  Philadelphus John Thomas Howell 1959-9-21 34739 Plumas Beldon 701 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-BC129388  Salix melanopsis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54335 Plumas 2.8 miles north-northeast of Englemine on Diamond Mt. Road - Sierra Nevada 1341 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-BC133079  Lilium washingtonianum subsp. washingtonianum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2158 Plumas Butterfly Botanical Area and Vicinity 1127 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-BC13439  Agoseris retrorsa John Thomas Howell; Walter Knight; Irja Knight; Gordon H. True 1967-6-12 1922 Plumas Butterfly Botanical Area and Vicinity, between valley proper and Darlingtonia bog. 1066 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-BC136149  Dodecatheon alpinum John Thomas Howell 1951-6-27 27612 Plumas Jamison Creek - Sierra Nevada 1950 Comment
  CAS-BOT-BC136577  Piperia leptopetala John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2226 Plumas Field redacted by CAS, contact the data manager for more information 1051 Comment
  CAS-BOT-BC136777  Amelanchier utahensis John Thomas Howell 1960-7-19 35685 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC136782  Amelanchier utahensis John Thomas Howell; Gordon H. True 1967-7-11 43339 Plumas Summit ridge of Mt. Hough 2194 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-BC136788  Amelanchier utahensis John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1967-6-12 1920 Plumas Butterfly Botanical Area and Vicinity 1066 Comment
  CAS-BOT-BC137401  Ivesia aperta John Thomas Howell 1962-6-18 37796 Plumas Near Beckwourth Comment
  CAS-BOT-BC137707  Anthoxanthum odoratum John Thomas Howell 1968-6-10 s.n. Plumas Sierra Nevada. Meadow at Quincy. 1036 Comment
  CAS-BOT-BC137996  Alopecurus geniculatus John Thomas Howell 1926-7-26 2129 Plumas Prattville. 1371 Comment
  CAS-BOT-BC137999  Alopecurus geniculatus John Thomas Howell; Gordon H. True 1967-7-9 43264 Plumas Sierra Nevada. Meadow at Quincy. 1036 Comment
  CAS-BOT-BC138000  Alopecurus geniculatus John Thomas Howell 1960-7-22 35882 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC138114  Alopecurus aequalis var. aequalis John Thomas Howell 1961-9-25 36952 Plumas Sierra Nevada. Feather River bed, Portola. 1478 Comment
  CAS-BOT-BC138115  Alopecurus aequalis var. aequalis John Thomas Howell 1951-6-28 27732 Plumas Eureka Lake. 1889 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-BC138373  Aira caryophyllea var. caryophyllea John Thomas Howell 1967-6-23 42665 Plumas Sierra Nevada. Canyon of Butterfly Creek. 1036 Comment
  CAS-BOT-BC138711  Agrostis scabra John Thomas Howell 1926-7-26 2127 Plumas Near Prattville. 1371 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-BC139603  Agrostis gigantea John Thomas Howell 1973-7-10 49741 Plumas Sierra Nevada. Near Greenville. 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-BC139613  Agrostis gigantea John Thomas Howell 1926-7-26 2135 Plumas Near Prattville. 1371 Comment
  CAS-BOT-BC139614  Agrostis gigantea John Thomas Howell 1959-9-22 34854 Plumas Drakesbad. 1737 Comment
  CAS-BOT-BC139615  Agrostis gigantea John Thomas Howell 1959-9-22 34872 Plumas On hot spring terraces, Drakesbad. 1737 Comment
  CAS-BOT-BC139618  Agrostis gigantea John Thomas Howell 1960-7-18 35521 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC140522  Physocarpus John Thomas Howell 1959-9-24 34938 Plumas Butterfly Creek near mouth Comment
  CAS-BOT-BC14081  Boechera pauciflora John Thomas Howell 1960-7-19 35637 Plumas Lassen Volcanic National Park. Drakesbad. 1828 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-BC141571  Crataegus castlegarensis John Thomas Howell 1980-5-27 53605 Plumas Near Crescent Mills in southwestern end of Indian Valley - Sierra Nevada 1066 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-BC142873  Amelanchier alnifolia var. semiintegrifolia John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54142 Plumas 0.25 mile west of Round Valley Reservoir dam - Sierra Nevada 1371 Comment
  CAS-BOT-BC14295  Boechera platysperma John Thomas Howell 1960-7-17 35497 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC143431  Potentilla John Thomas Howell 1961-6-21 36703 Plumas Greenville 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-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-BC145807  Beckmannia syzigachne John Thomas Howell 1962-6-18 37747 Plumas Sierra Nevada. Sierra Valley near Beckwourth. 1487 Comment
  CAS-BOT-BC146151  Avena fatua John Thomas Howell; Gordon H. True 1968-6-10 44552 Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC146263  Arrhenatherum elatius var. elatius John Thomas Howell; H. Keith Wagnon 1980-5-26 53593 Plumas Sierra Nevada. North Fork of Feather River between the mouth of East Branch and Caribou. 792 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-BC146266  Arrhenatherum elatius var. elatius John Thomas Howell; Gordon H. True 1967-7-11 43376 Plumas Sierra Nevada. Meadow at Quincy. 1036 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-BC14654  Boechera rectissima John Thomas Howell 1924-8-11 633 Plumas Two miles east of Chester on road to Westwood. 1310 Comment
  CAS-BOT-BC14656  Boechera rectissima John Thomas Howell 1961-6-21 36610 Plumas Sierra Nevada. Greenville. 1097 Comment
  CAS-BOT-BC14658  Boechera rectissima John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-10 2161 Plumas Butterfly Botanical Area and Vicinity. Mouth of Butterfly Creek. 883 Comment
  CAS-BOT-BC146929  Rosa woodsii John Thomas Howell 1963-6-3 39389 Plumas Quincy 1036 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-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-BC147876  Purshia tridentata var. tridentata John Thomas Howell 1962-6-17 37692 Plumas Portola 1463 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-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-BC148169  Rosa gymnocarpa John Thomas Howell; Walter Knight; Irja Knight; Gordon H. True 1969-6-24 2448 Plumas From vicinity of the mouth of Butterfly Creek - Butterfly Botanical Area and vicinity 883 Comment
  CAS-BOT-BC148171  Rosa gymnocarpa John Thomas Howell; Walter Knight; Irja Knight; Gordon H. True 1969-6-24 2627 Plumas Ner Overnight Camp - Butterfly Botanical Area and vicnity 1097 Comment
  CAS-BOT-BC148172  Rosa gymnocarpa John Thomas Howell; Walter Knight; Irja Knight; Gordon H. True 1969-6-24 2468 Plumas Darlingtonia Bog - Butterfly Botanical Area and vicnity 1097 Comment
  CAS-BOT-BC148431  Crataegus suksdorfii John Thomas Howell 1961-9-23 36835 Plumas Indian Valley 1082 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-BC148709  Bromus carinatus var. marginatus John Thomas Howell 1960-7-20 35760 Plumas Lassen Volcanic National Park. Boiling Springs Lake. 1798 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-BC148717  Bromus carinatus var. marginatus John Thomas Howell 1962-6-17 37687 Plumas Sierra Nevada. Butterfly Valley. 1036 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-BC149316  Bromus carinatus var. carinatus John Thomas Howell 1961-6-21 36602 Plumas Sierra Nevada. Greenville. 1097 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-BC149323  Bromus carinatus var. carinatus John Thomas Howell 1959-9-24 34904 Plumas Sierra Nevada. Crescent Mills. 1066 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-BC149731  Rosa woodsii subsp. ultramontana John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2378 Plumas In canyon of Butterfly Creek between Spanish Creek and Butterfly Valley Comment
  CAS-BOT-BC149732  Rosa woodsii subsp. ultramontana John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2372 Plumas Canyon of Butterfly Creek. Between Spanish Creek and Butterfly Valley Comment
  CAS-BOT-BC149733  Rosa woodsii subsp. ultramontana John Thomas Howell 1955-7-20 30843 Plumas Mohawk 1371 Comment
  CAS-BOT-BC150017  Holodiscus discolor var. discolor John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2179 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-BC151816  Diplacus mephiticus John Thomas Howell 1951-6-29 27753 Plumas Feather River Canyon 548 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-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-BC15456  Agoseris glauca var. glauca John Thomas Howell 1962-6-17 37701 Plumas Portola 1463 Comment
  CAS-BOT-BC154853  Prunus virginiana var. demissa John Thomas Howell 1924-8-10 610 Plumas Crescent Mills 1219 Comment
  CAS-BOT-BC155051  Bromus hordeaceus John Thomas Howell 1967-6-23 42698 Plumas Sierra Nevada. Butterfly Valley. 1066 Comment
  CAS-BOT-BC155052  Bromus hordeaceus John Thomas Howell 1961-6-21 36666 A Plumas Sierra Nevada. 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-BC155055  Bromus hordeaceus John Thomas Howell; Gordon H. True 1968-6-10 44543 Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC155058  Bromus hordeaceus John Thomas Howell 1963-6-3 39388 Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC155310  Bromus inermis John Thomas Howell; Gordon H. True 1967-7-11 43378 Plumas Sierra Nevada. Meadow at Quincy. 1036 Comment
  CAS-BOT-BC155312  Bromus inermis John Thomas Howell; Gordon H. True 1967-7-11 43379 Plumas Sierra Nevada. Meadow at Quincy. 1036 Comment
  CAS-BOT-BC155313  Bromus inermis John Thomas Howell 1962-6-19 37876 Plumas Sierra Nevada. Vinton. 1508 Comment
  CAS-BOT-BC155315  Bromus inermis John Thomas Howell; Gordon H. True 1967-7-11 43377 Plumas Sierra Nevada. Meadow at Quincy. 1036 Comment
  CAS-BOT-BC155346  Bromus japonicus John Thomas Howell 1977-6-24 52417 Plumas Sierra Nevada. Near confluence of Spanish and Indian Creeks. 929 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-BC155797  Bromus diandrus John Thomas Howell 1967-6-23 s.n. Plumas Sierra Nevada. Butterfly Valley. 1036 Comment
  CAS-BOT-BC155927  Bromus commutatus John Thomas Howell 1951-6-26 27538 Plumas Sierra Nevada. Feather River Canyon. 853 Comment
  CAS-BOT-BC155969  Bromus commutatus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54349 Plumas Sierra Nevada. 4.8 miles northwest of Antelope Reservoir. 1661 Comment
  CAS-BOT-BC155972  Bromus commutatus John Thomas Howell 1961-6-21 36666 Plumas Sierra Nevada. Greenville. 1097 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-BC155974  Bromus commutatus John Thomas Howell 1967-6-23 42677 Plumas Sierra Nevada. Canyon at Butterfly Creek. 1036 Comment
  CAS-BOT-BC155975  Bromus commutatus John Thomas Howell; Gordon H. True 1967-7-11 43302 Plumas Sierra Nevada. 2.5 miles from Quincy junction on road to Mount Hough. 1249 Comment
  CAS-BOT-BC156918  Rubus ursinus John Thomas Howell 1967-6-23 42707 Plumas Butterfly Valley 1066 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-BC158133  Prunus emarginata John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54272 Plumas Mt. Hough 2203 Comment
  CAS-BOT-BC158137  Prunus emarginata John Thomas Howell 1926-7-26 2120 Plumas Near Prattville 1463 Comment
  CAS-BOT-BC158152  Prunus emarginata John Thomas Howell; Gordon H. True 1967-7-11 43335 Plumas Summit ridge of Mt. Hough 2194 Comment
  CAS-BOT-BC158153  Prunus emarginata John Thomas Howell 1976-7-20 52036 Plumas At south end of Lake Almanor 1371 Comment
  CAS-BOT-BC158593  Prunus John Thomas Howell; H. Keith Wagnon 1980-5-26 53594 Plumas North Fork of Feather River between the mouth of East Branch and Caribou 792 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-BC158596  Prunus John Thomas Howell 1959-9-21 34782 Plumas N. Fk. Feather River near Belden 701 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-BC160836  Camissonia tanacetifolia subsp. quadriperforata John Thomas Howell 1955-7-19 30753 Plumas Beckwourth 1493 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-BC161357  Bromus tectorum John Thomas Howell 1961-6-21 36672 Plumas Sierra Nevada. Guerneville. 1097 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-BC161412  Bromus tectorum John Thomas Howell 1960-7-20 35766 Plumas Lassen Volcanic National Park. Boiling Springs Lake. 1798 Comment
  CAS-BOT-BC161636  Bromus sterilis John Thomas Howell; Gordon H. True 1968-6-10 44556 Plumas Sierra Nevada. Quincy. Along railroad. 1036 Comment
  CAS-BOT-BC162013  Bromus racemosus John Thomas Howell; Gordon H. True 1968-6-10 44543 A Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC162143  Bromus orcuttianus John Thomas Howell 1926-7-20 2088 Plumas Near Prattville. 1463 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-BC162161  Bromus orcuttianus John Thomas Howell 1951-6-28 27656 A Plumas Sierra Nevada. Johnsville. 1584 Comment
  CAS-BOT-BC162585  Clarkia John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54380 Plumas 0.75 miles northeast of Bucks Summit on the road to Quincy - Sierra Nevada 1600 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-BC163280  Clarkia mildrediae subsp. mildrediae John Thomas Howell 1967-6-22 42649 Plumas Rock Creek Power House, canyon of the Feather River North Fork Comment
  CAS-BOT-BC163281  Clarkia mildrediae subsp. mildrediae John Thomas Howell 1951-6-29 27754 Plumas Feather River Canyon 548 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-BC163859  Clarkia purpurea subsp. quadrivulnera John Thomas Howell; Gordon H. True 1967-7-9 43272 Plumas Meadow at Quincy 1036 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-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-BC165428  Clarkia unguiculata John Thomas Howell 1967-6-22 42651 Plumas Near mouth of Granite Creek. Canyon of the Feather River North Fork 609 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-BC166083  Chamerion angustifolium subsp. circumvagum John Thomas Howell 1977-8-11 52679 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir 1676 Comment
  CAS-BOT-BC167539  Polygala cornuta var. cornuta John Thomas Howell 1966-7-26 42003 Plumas Injun Jim Campground at confluence of Granite Creek and North Fork of Feather River 609 Comment
  CAS-BOT-BC168219  Viola sheltonii John Thomas Howell 1977-6-21 52378 Plumas Seneca 1097 Comment
  CAS-BOT-BC169123  Ribes inerme var. inerme John Thomas Howell 1961-9-23 36835 A Plumas Indian Valley east of Crescent Mills - Sierra Nevada 1082 Comment
  CAS-BOT-BC169856  Garrya fremontii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54374 Plumas 0.75 miles northeast of Bucks Summit on road to Quincy 1600 Comment
  CAS-BOT-BC169857  Garrya fremontii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54373 Plumas 0.75 miles northeast of Bucks Summit on road to Quincy 1600 Comment
  CAS-BOT-BC169862  Garrya fremontii John Thomas Howell 1967-6-23 42699 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC169863  Garrya fremontii John Thomas Howell 1959-9-25 35033 Plumas 1.5 mi. se. of Cromberg 1584 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-BC171351  Alnus incana subsp. tenuifolia John Thomas Howell 1955-7-20 30839 Plumas Mohawk. Sierra Nevada 1371 Comment
  CAS-BOT-BC171352  Alnus incana subsp. tenuifolia John Thomas Howell 1951-8-20 28203 Plumas Indian Valley. Sierra Nevada 1066 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-BC17352  Arabis eschscholtziana John Thomas Howell; Walter Knight; Irja Knight; Gordon H. True 1968-6-11 2365 Plumas Sierra Nevada. Butterfly Botanical Area. Confluence of Spanish Creek & Butterfly Creek. 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-BC17391  Armoracia rusticana John Thomas Howell 1963-6-3 39386 Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC174180  Eremogone cliftonii John Thomas Howell; Gordon H. True 1967-5-9 42224 Plumas Feather River Canyon near mouth of Chambers Creek 609 Comment
  CAS-BOT-BC174210  Eremogone congesta var. congesta John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54129 Plumas At Round Valley Reservoir dam 1371 Comment
  CAS-BOT-BC174212  Eremogone congesta var. congesta John Thomas Howell 1973-7-9 49723 Plumas Round Valley 1371 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-BC174463  Loeflingia squarrosa John Thomas Howell 1962-6-19 37872 Plumas 5.8 miles e. of Beckwourth 1493 Comment
  CAS-BOT-BC175767  Caltha leptosepala John Thomas Howell 1951-6-28 27701 Plumas Eureka Peak 1981 Comment
  CAS-BOT-BC176982  Salsola tragus John Thomas Howell 1959-9-24 34977 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC176984  Salsola tragus John Thomas Howell 1955-7-19 30763 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC176985  Salsola tragus John Thomas Howell 1959-9-24 34902 Plumas Crescent Mills 1066 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-BC17938  Carex angustata John Thomas Howell 1960-7-23 35943 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-BC17941  Carex angustata John Thomas Howell 1967-6-23 42708 Plumas Sierra Nevada. Butterfly Valley. 1066 Comment
  CAS-BOT-BC17942  Carex angustata John Thomas Howell 1976-7-15 51850 Plumas Sierra Nevada. Snake Lake, about 4 miles northwest of Quincy. 1219 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-BC181340  Silene latifolia John Thomas Howell 1963-6-3 39385 Plumas Quincy - Sierra Nevada 1036 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-BC181366  Silene occidentalis John Thomas Howell 1951-6-27 27557 Plumas Johnsville - Sierra Nevada 1584 Comment
  CAS-BOT-BC181452  Stellaria obtusa John Thomas Howell 1959-9-23 s.n. Plumas Meadow 3 mi. from Juniper Lake on road to Chester 1889 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-BC18349  Carex John Thomas Howell; Gordon H. True 1968-6-10 44550 Plumas Sierra Nevada. Quincy. 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-BC184016  Vulpia microstachys var. microstachys John Thomas Howell 1961-6-21 36665 Plumas Greenville 1097 Comment
  CAS-BOT-BC184018  Vulpia microstachys var. microstachys John Thomas Howell 1951-6-28 27669 Plumas Jamison Creek 1584 Comment
  CAS-BOT-BC184419  Vulpia microstachys var. pauciflora John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1967-6-12 1926 Plumas Butterfly Botanical Area and Vicinity 1066 Comment
  CAS-BOT-BC184422  Vulpia microstachys var. pauciflora John Thomas Howell 1962-6-17 37683 A Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC184425  Vulpia microstachys var. pauciflora John Thomas Howell 1975-6-16 51159 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC185307  Calamagrostis koelerioides John Thomas Howell 1951-6-26 27537 Plumas Sierra Nevada. Feather River Canyon. 853 Comment
  CAS-BOT-BC185348  Calamagrostis canadensis John Thomas Howell 1960-7-20 35722 Plumas Lassen Volcanic National Park. 1828 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-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-BC185679  Vulpia myuros subsp. megalura John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1967-6-12 1978 Plumas Butterfly Botanical Area and Vicinity 1036 Comment
  CAS-BOT-BC185680  Vulpia myuros subsp. megalura John Thomas Howell 1962-6-17 37684 Plumas Butterfly Valley 1036 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-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-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-BC189787  Dactylis glomerata John Thomas Howell 1961-6-21 36683 Plumas Sierra Nevada. Greenville. 1097 Comment
  CAS-BOT-BC189844  Dactylis glomerata John Thomas Howell 1960-7-22 35878 Plumas Lassen Volcanic National Park. Drakesbad. 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-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-BC192334  Danthonia unispicata John Thomas Howell 1962-6-18 37772 Plumas Sierra Valley near Beckwourth 1487 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-BC192446  Deschampsia cespitosa subsp. cespitosa John Thomas Howell 1959-9-24 34897 Plumas Greenville 1097 Comment
  CAS-BOT-BC192949  Astragalus purshii var. purshii John Thomas Howell 1962-6-19 37846 Plumas The Buttes, n. Sierra Valley 1493 Comment
  CAS-BOT-BC193533  Trisetum spicatum John Thomas Howell 1951-6-28 27725 Plumas Eureka Peak 2255 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-BC19621  Carex brainerdii John Thomas Howell; Gordon H. True 1969-6-23 45806 Plumas Sierra Nevada. 2.6 miles north of Middle Fork of Feather River at Nelson Point. 1310 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-BC19635  Carex brainerdii John Thomas Howell 1960-7-17 35484 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC19636  Carex brainerdii John Thomas Howell 1960-7-22 35912 Plumas Lassen Volcanic National Park. Devil's Kitchen to Drakesbad. 1828 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-BC197390  Thinopyrum intermedium subsp. barbulatum John Thomas Howell; Gordon H. True 1968-6-10 44544 Plumas Quincy 1036 Comment
  CAS-BOT-BC198149  Deschampsia danthonioides John Thomas Howell 1951-6-27 27588 Plumas McRae Meadow - Sierra Nevada 1981 Comment
  CAS-BOT-BC198151  Deschampsia danthonioides John Thomas Howell 1960-7-19 35619 Plumas Drakesbad - Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC199163  Vaccinium cespitosum John Thomas Howell 1963-6-3 39392 Plumas Butterfly Valley 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-BC199521  Vaccinium uliginosum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54382 Plumas 0.25 miles east of Bucks Summit on road to Quincy 1670 Comment
  CAS-BOT-BC199693  Trisetum canescens John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1968-6-11 2355 Plumas Butterfly Botanical Area. Confluence of Spanish Creek & Butterfly Creek 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-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-BC200510  Triticum aestivum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2198 Plumas Mouth of Butterfly Creek 883 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-BC201013  Cytisus scoparius John Thomas Howell 1959-9-21 34720 Plumas Belden 701 Comment
  CAS-BOT-BC20116  Carex feta John Thomas Howell 1962-6-17 37659 Plumas Sierra Nevada. Butterfly Valley. 1036 Comment
  CAS-BOT-BC20117  Carex feta John Thomas Howell 1926-7-26 2132 Plumas Near Prattville. 1371 Comment
  CAS-BOT-BC20119  Carex feta John Thomas Howell 1960-7-19 35704 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC202034  Thinopyrum ponticum John Thomas Howell 1962-6-18 37785 Plumas Sierra Valley, near Beckwourth 1487 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-BC203102  Vitis californica John Thomas Howell 1959-9-24 34922 Plumas Indian Creek Canyon near Indian Falls Comment
  CAS-BOT-BC204249  Elymus trachycaulus subsp. subsecundus John Thomas Howell 1960-7-18 35607 Plumas Lassen Volcanic National Park. Drakesbad 1828 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-BC204406  Elymus trachycaulus subsp. trachycaulus John Thomas Howell 1955-7-1 30786 Plumas Vinton 1505 Comment
  CAS-BOT-BC204408  Elymus trachycaulus subsp. trachycaulus John Thomas Howell; Gordon H. True 1968-6-10 44549 Plumas Quincy 1036 Comment
  CAS-BOT-BC204410  Elymus trachycaulus subsp. trachycaulus John Thomas Howell 1951-6-27 27566 Plumas Johnsville 1584 Comment
  CAS-BOT-BC204595  Eragrostis mexicana subsp. virescens John Thomas Howell 1959-9-21 34807 Plumas Near Paxton 883 Comment
  CAS-BOT-BC204596  Eragrostis mexicana subsp. virescens John Thomas Howell 1961-9-22 36811 Plumas Greenville 1088 Comment
  CAS-BOT-BC204598  Eragrostis mexicana subsp. virescens John Thomas Howell 1955-7-19 30734 Plumas Portola 1478 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-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-BC206510  Elymus glaucus subsp. glaucus John Thomas Howell 1975-7-22 51373 Plumas 2 miles northwest of Spring Garden - Sierra Nevada 1173 Comment
  CAS-BOT-BC206511  Elymus glaucus subsp. glaucus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54320 Plumas Near Englemine on Diamond Mt. road northeast of Taylorsville - Sierra Nevada 1219 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-BC206521  Elymus glaucus subsp. glaucus John Thomas Howell 1967-6-23 42667 A Plumas Canyon of Butterfly Creek just above its mouth, Plumas Canyon - Sierra Nevada 1036 Comment
  CAS-BOT-BC206522  Elymus glaucus subsp. glaucus John Thomas Howell 1967-6-23 42666 Plumas Canyon of Butterfly Creek - Sierra Nevada 1036 Comment
  CAS-BOT-BC20691  Carex fracta John Thomas Howell 1960-7-20 35710 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC20692  Carex fracta John Thomas Howell 1960-7-17 35496 Plumas Lassen Volcanic National Park. Drakesbad. 1828 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-BC208792  Lupinus argenteus var. heteranthus John Thomas Howell 1955-7-19 30775 Plumas Beckwourth - Sierra Nevada 1493 Comment
  CAS-BOT-BC209011  Digitaria sanguinalis John Thomas Howell 1959-9-21 34724 Plumas Belden - Sierra Nevada 701 Comment
  CAS-BOT-BC209432  Cornus nuttallii John Thomas Howell 1959-9-21 34735 Plumas Belden 701 Comment
  CAS-BOT-BC209722  Cornus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54363 Plumas 0.75 miles northeast of Bucks Summit on road to Quincy 1600 Comment
  CAS-BOT-BC210302  Cornus sericea John Thomas Howell 1951-8-20 28205 A Plumas Near Taylorsville 1066 Comment
  CAS-BOT-BC210305  Cornus sericea John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2415 Plumas Butterfly Botanical Area. Fern Glen 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-BC210316  Cornus sericea John Thomas Howell 1955-7-20 30842 Plumas Mohawk 1371 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-BC210499  Cornus sericea subsp. occidentalis John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2400 Plumas Butterfly Botanical Area 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-BC210687  Achnatherum lemmonii John Thomas Howell 1962-6-17 37685 Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC210688  Achnatherum lemmonii John Thomas Howell 1955-7-19 30766 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC210691  Achnatherum lemmonii John Thomas Howell; Gordon H. True 1967-5-9 42222 Plumas Feather River Canyon near mouth of Chambers Creek 609 Comment
  CAS-BOT-BC210697  Achnatherum lemmonii John Thomas Howell 1951-6-29 27745 Plumas Spring Garden Creek 1158 Comment
  CAS-BOT-BC210701  Achnatherum lemmonii John Thomas Howell 1973-7-10 49752 Plumas Near Greenville 1097 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-BC210745  Achnatherum nelsonii John Thomas Howell 1962-6-18 37775 Plumas Sierra Valley near Beckwourth 1487 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-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-BC210929  Achnatherum occidentale subsp. pubescens John Thomas Howell 1961-6-21 36700 Plumas Greenville 1097 Comment
  CAS-BOT-BC210931  Achnatherum occidentale subsp. pubescens John Thomas Howell 1955-7-19 30754 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC213135  Sidalcea John Thomas Howell 1961-6-21 36604 Plumas Greenville, Sierra Nevada 1097 Comment
  CAS-BOT-BC213818  Elymus repens John Thomas Howell 1961-9-23 36826 Plumas Indian Valley - Sierra Nevada 1082 Comment
  CAS-BOT-BC213820  Elymus repens John Thomas Howell 1959-9-25 35036 Plumas Quincy - Sierra Nevada 1036 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-BC216235  Eriodictyon californicum John Thomas Howell 1951-6-26 27554 Plumas Near Keddie, Sierra Nevada 975 Comment
  CAS-BOT-BC216878  Achnatherum occidentale John Thomas Howell; Gordon H. True 1973-7-31 50069 Plumas Summit ridge of Thompson Peak, Diamond Range 2362 Comment
  CAS-BOT-BC216881  Achnatherum occidentale John Thomas Howell 1960-7-19 35670 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC217995  Achnatherum webberi John Thomas Howell; Gordon H. True 1973-7-31 50122 Plumas Summit ridge of Thompson Peak, Diamond Range 2133 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-BC21970  Carex heteroneura John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54117 Plumas 10.6 miles northeast of La Porte on road to Quincy. 1889 Comment
  CAS-BOT-BC21971  Carex heteroneura John Thomas Howell 1960-7-20 35714 Plumas Drakesbad. 1828 Comment
  CAS-BOT-BC21973  Carex heteroneura John Thomas Howell 1951-6-27 27590 Plumas McRae Meadow. 1981 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-BC220483  Monardella sheltonii John Thomas Howell 1975-7-22 51349 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC220485  Monardella sheltonii John Thomas Howell 1975-7-22 51370 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC220486  Monardella sheltonii John Thomas Howell 1975-7-22 51350 Plumas 2 miles northwest of Spring Garden 1173 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-BC221954  Taeniatherum caput-medusae John Thomas Howell 1961-6-21 36603 Plumas Greenville 1097 Comment
  CAS-BOT-BC221955  Taeniatherum caput-medusae John Thomas Howell 1959-9-24 34908 Plumas Crescent Mills 1066 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-BC222116  Monardella odoratissima subsp. pallida John Thomas Howell 1926-7-31 2179 Plumas Near Prattville 1463 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-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-BC227600  Elymus elymoides John Thomas Howell 1962-6-19 37884 A Plumas Beckwourth Pass 1584 Comment
  CAS-BOT-BC227603  Elymus elymoides John Thomas Howell 1951-6-27 27564 Plumas Johnsville 1584 Comment
  CAS-BOT-BC227604  Elymus elymoides John Thomas Howell 1951-6-28 s.n. Plumas Eureka Lake 1889 Comment
  CAS-BOT-BC227605  Elymus elymoides John Thomas Howell 1926-7-24 2105 Plumas Near Prattville 1463 Comment
  CAS-BOT-BC227606  Elymus elymoides John Thomas Howell 1977-6-20 52413 Plumas On the peninsula of Lake Almanor 1371 Comment
  CAS-BOT-BC227722  Elymus elymoides John Thomas Howell 1955-7-19 30780 A Plumas Beckwourth 1493 Comment
  CAS-BOT-BC227723  Elymus elymoides John Thomas Howell 1955-7-19 30780 A Plumas Beckwourth 1493 Comment
  CAS-BOT-BC227729  Elymus elymoides John Thomas Howell 1961-6-21 36627 Plumas Greenville 1097 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-BC228459  Plagiobothrys mollis John Thomas Howell 1926-7-30 2156 Plumas Prattville Comment
  CAS-BOT-BC228461  Plagiobothrys mollis John Thomas Howell 1961-9-25 36950 Plumas Feather River bed, Portola 1478 Comment
  CAS-BOT-BC228655  Elymus multisetus John Thomas Howell 1955-7-19 30779 Plumas Beckwourth 1493 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-BC22916  Agoseris heterophylla John Thomas Howell 1961-6-21 36637 Plumas Greenville 1097 Comment
  CAS-BOT-BC22923  Agoseris heterophylla John Thomas Howell 1962-6-17 37729 Plumas Portola 1463 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-BC230553  Nemophila parviflora var. austiniae J. T. Howell; et al. 1967-5-7 2228 A Plumas Butterfly Botanical Area and Vicinity. Pond reservoir 1127 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-BC230957  Plagiobothrys hispidulus John Thomas Howell 1960-7-22 35884 A 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-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-BC230966  Plagiobothrys hispidulus John Thomas Howell; Gordon H. True 1973-7-31 50093 Plumas Summit ridge of Thompson Peak, Diamond Range 2194 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-BC237006  Symphoricarpos mollis John Thomas Howell 1967-6-23 42676 Plumas Canyon of Butterfly Creek, Sierra Nevada 1036 Comment
  CAS-BOT-BC237007  Symphoricarpos mollis John Thomas Howell 1961-6-21 36613 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-BC237011  Symphoricarpos mollis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54190 Plumas 4 miles by road N. of Grays Flat on road to Long Valley, Sierra Nevada 1447 Comment
  CAS-BOT-BC237268  Polypogon monspeliensis John Thomas Howell 1951-8-20 28233 Plumas Sierra Valley, 3 miles E of Buckwourth 1524 Comment
  CAS-BOT-BC237269  Polypogon monspeliensis John Thomas Howell 1959-9-24 34928 Plumas Junction of Indian and Spanish creeks 914 Comment
  CAS-BOT-BC237270  Polypogon monspeliensis John Thomas Howell 1961-9-24 36908 Plumas Feather River bed SW of Beckwourth 1487 Comment
  CAS-BOT-BC237461  Polypogon viridis John Thomas Howell 1959-9-26 35069 Plumas Near Soda Spring, Feather River Canyon 682 Comment
  CAS-BOT-BC238840  Sambucus nigra subsp. caerulea John Thomas Howell 1977-6-21 52375 Plumas Seneca 1097 Comment
  CAS-BOT-BC238846  Sambucus nigra subsp. caerulea John Thomas Howell 1961-6-21 36649 Plumas Greenville 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-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-BC239607  Penstemon rydbergii var. oreocharis John Thomas Howell 1962-6-18 37736 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC239610  Penstemon rydbergii var. oreocharis John Thomas Howell 1960-7-19 35625 Plumas Lassen Volcanic National Park, Drakesbad 1828 Comment
  CAS-BOT-BC240089  Secale cereale John Thomas Howell 1951-6-28 27640 Plumas Johnsville 1584 Comment
  CAS-BOT-BC240090  Secale cereale John Thomas Howell 1961-6-21 36682 Plumas Greenville 1097 Comment
  CAS-BOT-BC240672  Lonicera interrupta John Thomas Howell 1951-6-26 27550 Plumas Feather River Canyon 853 Comment
  CAS-BOT-BC241037  Castilleja pilosa John Thomas Howell 1951-6-28 27696 Plumas Eureka Peak 1981 Comment
  CAS-BOT-BC241043  Castilleja pilosa John Thomas Howell 1955-7-19 30810 Plumas Vinton 1508 Comment
  CAS-BOT-BC24188  Arctostaphylos John Thomas Howell 1976-7-16 51917 Plumas In area of metamorphic shaly rock just east of Bucks Summit on road to Meadow Valley. 1645 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-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-BC24206  Arctostaphylos John Thomas Howell; Gordon H. True 1967-5-8 42200 Plumas Along Forest Service Rd. between Butterfly Valley proper and the Butterfly Botanical area Comment
  CAS-BOT-BC24207  Arctostaphylos John Thomas Howell; Gordon H. True 1967-5-8 42197 Plumas Along Forest Service Rd. between Butterfly Valley proper and the Butterfly Botanical area Comment
  CAS-BOT-BC242967  Poa secunda subsp. secunda John Thomas Howell 1951-6-27 27637 Plumas Jamison Creek 1828 Comment
  CAS-BOT-BC242969  Poa secunda subsp. secunda John Thomas Howell 1951-6-28 27663 Plumas Jamison Creek 1584 Comment
  CAS-BOT-BC242978  Poa secunda subsp. secunda John Thomas Howell; Gordon H. True; Wayne Dakan 1974-7-30 50637 Plumas Headwaters of Indian Creek SE of Diamond Mountain 2164 Comment
  CAS-BOT-BC242979  Poa secunda subsp. secunda John Thomas Howell 1962-6-17 37705 Plumas Portola 1463 Comment
  CAS-BOT-BC242983  Poa secunda subsp. secunda John Thomas Howell; Gordon H. True 1969-6-23 45823 A Plumas Middle Fork of Feather River at Nelson Point 1249 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-BC242991  Poa secunda subsp. secunda John Thomas Howell; Gordon H. True 1967-5-9 42208 Plumas Lewisia Rock, 3.5 miles SW of Belden, Feather River Canyon 609 Comment
  CAS-BOT-BC244048  Eriogonum baileyi var. praebens John Thomas Howell 1955-7-19 30806 Plumas Vinton, Sierra Nevada 1511 Comment
  CAS-BOT-BC244140  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-BC244142  Poa sierrae John Thomas Howell 1967-6-22 42650 Plumas Canyon of the Feather River N Fork, near mouth of Granite Creek 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-BC244144  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-BC244167  Poa trivialis John Thomas Howell; Gordon H. True 1968-6-10 44557 Plumas Quincy 1036 Comment
  CAS-BOT-BC244319  Podagrostis humilis John Thomas Howell 1960-7-23 35954 Plumas Lassen Volcanic National Park. Drakesbad, Soda Spring 1828 Comment
  CAS-BOT-BC244321  Podagrostis humilis John Thomas Howell 1960-7-18 35525 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC245657  Lemna turionifera John Thomas Howell 1960-7-22 35868 Plumas Meadow pond, Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC246165  Keckiella lemmonii John Thomas Howell 1966-7-26 42001 Plumas Injun Jim Campground at confluence of Granite Creek and North Fork of Feather River, Sierra Nevada 609 Comment
  CAS-BOT-BC246167  Keckiella lemmonii John Thomas Howell 1951-8-19 28174 Plumas Near Paxton, Sierra Nevada 914 Comment
  CAS-BOT-BC246168  Keckiella lemmonii John Thomas Howell 1959-9-24 34920 Plumas Indian Creek Canyon near Indian Falls, Sierra Nevada Comment
  CAS-BOT-BC246535  Eriogonum elatum var. elatum John Thomas Howell 1955-7-19 30747 Plumas Beckwourth 1493 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-BC246854  Poa nemoralis J. T. Howell 1977-6-21 52386 Plumas Seneca 1097 Comment
  CAS-BOT-BC247060  Poa secunda subsp. juncifolia John Thomas Howell 1955-7-19 30785 Plumas Vinton 1505 Comment
  CAS-BOT-BC247078  Poa secunda subsp. juncifolia John Thomas Howell 1962-6-18 37755 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC247081  Poa secunda subsp. juncifolia John Thomas Howell 1955-7-19 30800 Plumas Vinton 1505 Comment
  CAS-BOT-BC247270  Poa palustris John Thomas Howell; Gordon H. True 1967-7-9 43255 Plumas North Fork of Feather River 4.3 miles southwest of Caribou 792 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-BC247272  Poa palustris John Thomas Howell 1955-7-19 30735 Plumas Portola 1478 Comment
  CAS-BOT-BC247273  Poa palustris John Thomas Howell 1961-9-23 36852 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC247274  Poa palustris John Thomas Howell 1961-9-25 36944 Plumas Feather River bed, Portola 1478 Comment
  CAS-BOT-BC247275  Poa palustris John Thomas Howell 1960-8-20 36277 Plumas Lassen Volcanic National Park. Drakesbad 1828 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-BC248773  Eriogonum baileyi var. baileyi John Thomas Howell 1955-7-19 30807 A Plumas Vinton 1508 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-BC249731  Castilleja applegatei subsp. pinetorum John Thomas Howell; Gordon H. True 1973-7-31 50126 Plumas On road from Janesville to Thompson Peak, Diamond Range 1981 Comment
  CAS-BOT-BC249747  Castilleja applegatei subsp. pinetorum John Thomas Howell 1951-6-28 27715 Plumas Eureka Peak 2255 Comment
  CAS-BOT-BC249749  Castilleja applegatei subsp. pinetorum John Thomas Howell 1951-6-27 27626 Plumas Jamison Creek 1828 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-BC253737  Panicum capillare John Thomas Howell 1960-7-20 35761 Plumas Lassen Volcanic National Park. Boiling Springs Lake 1798 Comment
  CAS-BOT-BC253739  Panicum capillare John Thomas Howell 1951-8-20 28214 Plumas Genesee 1127 Comment
  CAS-BOT-BC253741  Panicum capillare John Thomas Howell 1976-7-15 51831 Plumas Quincy 1051 Comment
  CAS-BOT-BC253813  Panicum dichotomiflorum John Thomas Howell 1959-9-26 35065 Plumas Near Virgilia 838 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-BC25410  Boechera retrofracta John Thomas Howell; Gordon H. True 1969-6-23 45835 Plumas SIerra Nevada. On Middel Fork of Feather River at Nelson Point. 1249 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-BC254482  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell 1962-6-17 37652 Plumas Butterfly Valley 1036 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-BC254970  Poa bulbosa John Thomas Howell 1955-7-19 30740 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC254972  Poa bulbosa John Thomas Howell 1951-8-20 28207 Plumas Taylorsville 1082 Comment
  CAS-BOT-BC255020  Poa secunda John Thomas Howell; Gordon H. True 1973-7-31 50103 Plumas Summit ridge of Thompson Peak, Diamond Range Comment
  CAS-BOT-BC255097  Poa compressa John Thomas Howell 1951-6-27 27577 Plumas Johnsville 1584 Comment
  CAS-BOT-BC255099  Poa compressa John Thomas Howell; Gordon H. True 1967-7-11 43299 Plumas 2.5 miles form Quincy Junction on road to Mount Hough 1249 Comment
  CAS-BOT-BC255100  Poa compressa John Thomas Howell 1977-6-20 52409 Plumas Below the high water line, on the peninsula of Lake Almanor 1371 Comment
  CAS-BOT-BC255103  Poa compressa John Thomas Howell 1959-9-24 34899 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC255752  Eriogonum elatum var. villosum John Thomas Howell 1955-7-19 30826 Plumas Mohawk, Sierra Nevada 1371 Comment
  CAS-BOT-BC255918  Poa nervosa John Thomas Howell; Gordon H. True 1969-6-23 45823 Plumas 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-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-BC259738  Paspalum distichum John Thomas Howell 1959-9-21 34755 Plumas N Fork Feather River near Belden 701 Comment
  CAS-BOT-BC260842  Phleum pratense John Thomas Howell; Walter Knight; Irja Knight 1966-7-28 1665 Plumas In Sweetwater Meadow, Butterfly Botanical Area and Vicinity 1127 Comment
  CAS-BOT-BC260845  Phleum pratense John Thomas Howell 1955-7-20 30861 Plumas Mohawk, Sierra Nevada 1371 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-BC260849  Phleum pratense John Thomas Howell 1961-6-21 36595 Plumas Greenville, Sierra Nevada 1097 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-BC262073  Eriogonum umbellatum var. nevadense John Thomas Howell 1951-6-27 27634 Plumas Jamison Creek 1828 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-BC262263  Eriogonum ursinum John Thomas Howell 1975-7-22 51366 Plumas 2 miles northwest of Spring Garden 1173 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-BC262610  Muhlenbergia andina John Thomas Howell 1960-7-19 35655 Plumas Lassen Volcanic National Park. Drakesbad 1828 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-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-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-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-BC264137  Eriogonum vimineum John Thomas Howell 1951-8-19 28175 Plumas Near Paxton, Sierra Nevada 914 Comment
  CAS-BOT-BC264174  Melica subulata John Thomas Howell; Walter Knight; Irja Knight 1966-7-28 1534 Plumas Area north of Pond Reservoir, Butterfly Botanical Area and Vicinity 1097 Comment
  CAS-BOT-BC264175  Melica subulata John Thomas Howell; Walter Knight; Irja Knight 1966-7-26 1571 Plumas Fern Glen, Butterfly Botanical Area and Vicinity 1097 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-BC264181  Melica subulata John Thomas Howell 1962-6-17 37682 Plumas Butterfly Valley, Sierra Nevada 1036 Comment
  CAS-BOT-BC264815  Eriogonum nudum var. deductum John Thomas Howell 1975-7-22 51367 Plumas 2 miles northwest of Spring Garden, Sierra Nevada 1173 Comment
  CAS-BOT-BC264816  Eriogonum nudum var. deductum John Thomas Howell 1973-7-9 49720 Plumas Round Valley, 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-BC264819  Eriogonum nudum var. deductum John Thomas Howell 1959-9-22 34834 Plumas Wolf Creek 1371 Comment
  CAS-BOT-BC264820  Eriogonum nudum var. deductum John Thomas Howell 1951-6-26 27546 Plumas Feather River Canyon, Sierra Nevada 853 Comment
  CAS-BOT-BC265159  Eriogonum umbellatum var. nevadense John Thomas Howell 1962-6-18 37795 Plumas Sierra Valley near Beckwourth, Sierra Nevada 1487 Comment
  CAS-BOT-BC265831  Phalaris arundinacea John Thomas Howell 1973-7-9 49713 Plumas Crescent Mills, Sierra Nevada 1066 Comment
  CAS-BOT-BC267002  Muhlenbergia filiformis John Thomas Howell 1959-9-25 34993 Plumas Feather River, Portola 1478 Comment
  CAS-BOT-BC267003  Muhlenbergia filiformis John Thomas Howell 1959-9-21 34819 Plumas Indian Creek 914 Comment
  CAS-BOT-BC267005  Muhlenbergia filiformis John Thomas Howell 1959-9-22 34846 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC267006  Muhlenbergia filiformis John Thomas Howell 1959-9-22 34869 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC267331  Eriogonum luteolum var. pedunculatum John Thomas Howell 1951-6-26 27541 Plumas Feather River Canyon, Sierra Nevada 853 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-BC267502  Eriogonum umbellatum John Thomas Howell 1951-8-20 28222 Plumas Indian Valley 1097 Comment
  CAS-BOT-BC267503  Eriogonum umbellatum John Thomas Howell 1959-9-25 35032 Plumas 1.5 mi. se. of Cromberg 1280 Comment
  CAS-BOT-BC267504  Eriogonum umbellatum John Thomas Howell 1974-9-20 50899 Plumas About 2 miles from Spring Garden on road to Quincy 1158 Comment
  CAS-BOT-BC267505  Eriogonum umbellatum John Thomas Howell 1974-9-20 50898 Plumas About 2 miles from Spring Garden on road to Quincy 1158 Comment
  CAS-BOT-BC268015  Eriogonum umbellatum var. furcosum John Thomas Howell 1926-7-27 2148 Plumas Near Prattville 1676 Comment
  CAS-BOT-BC268693  Eriogonum microthecum var. laxiflorum John Thomas Howell; Gordon H. True 1973-7-31 50070 Plumas Summit ridge of Thompson Peak, Diamond Range 2362 Comment
  CAS-BOT-BC269065  Lolium perenne John Thomas Howell 1961-6-21 36619 Plumas Greenville 1097 Comment
  CAS-BOT-BC269066  Lolium perenne John Thomas Howell 1960-7-18 35567 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC269221  Melica aristata John Thomas Howell 1926-7-20 2082 Plumas Near Prattville 1463 Comment
  CAS-BOT-BC269723  Eriogonum nudum var. oblongifolium John Thomas Howell 1951-6-26 27542 Plumas Feather River Canyon 853 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-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-BC271100  Melica bulbosa John Thomas Howell; Gordon H. True 1967-7-11 43332 Plumas Summit ridge of Mt. Hough, 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-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-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-BC272086  Centaurea cyanus John Thomas Howell 1967-6-23 42696 Plumas Butterfly Valley, Sierra Nevada 1066 Comment
  CAS-BOT-BC272087  Centaurea cyanus John Thomas Howell 1961-6-21 36654 Plumas Greenville, Sierra Nevada 1097 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-BC274531  Leymus triticoides John Thomas Howell 1961-6-21 36625 Plumas Greenville Comment
  CAS-BOT-BC274533  Leymus triticoides John Thomas Howell 1962-6-19 7869 Plumas 5.8 miles e. of Beckwourth 1493 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-BC275036  Muhlenbergia richardsonis John Thomas Howell 1959-9-25 34992 Plumas Feather RIver, Portola 1478 Comment
  CAS-BOT-BC276722  Chaenactis douglasii var. douglasii John Thomas Howell 1951-6-28 27712 Plumas Eureka Peak 2255 Comment
  CAS-BOT-BC276723  Chaenactis douglasii var. douglasii John Thomas Howell 1962-6-17 37715 Plumas Portola 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-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-BC277218  Centaurea solstitialis John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2193 Plumas Butterfly Botanical Area and vicinity. Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC278025  Cirsium cymosum John Thomas Howell 1962-6-17 37713 Plumas Portola 1463 Comment
  CAS-BOT-BC278026  Cirsium cymosum John Thomas Howell 1955-7-19 30812 Plumas Portola 1478 Comment
  CAS-BOT-BC278028  Cirsium cymosum John Thomas Howell 1962-6-19 37847 Plumas The Buttes, n. Sierra Valley 1493 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-BC278217  Schedonorus arundinaceus John Thomas Howell 1966-7-29 42019 Plumas Quincy 1036 Comment
  CAS-BOT-BC278465  Festuca idahoensis John Thomas Howell 1960-7-22 35885 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-BC278847  Festuca occidentalis John Thomas Howell 1961-6-21 36611 Plumas 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-BC278852  Festuca occidentalis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54294 Plumas On China Grade, 1.4 miles south of Taylorsville 1402 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-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-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-BC279838  Cichorium intybus John Thomas Howell 1959-9-24 34910 Plumas Crescent Mills 1066 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-BC279953  Cirsium douglasii var. breweri John Thomas Howell 1960-7-24 35987 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-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-BC28077  Carex hoodii John Thomas Howell 1960-7-17 35499 Plumas Near springy place, Drakesbad 1828 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-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-BC282081  Melica fugax John Thomas Howell 1961-6-21 36633 Plumas Greenville 1097 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-BC282089  Melica fugax John Thomas Howell; et al. 1967-6-12 1953 Plumas Butterfly Botanical Botanical Area and Vicinity. Fern Glen 1097 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-BC282103  Melica fugax John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54254 Plumas About 2.5 miles SE of Mount Hough on the road to Quincy 1798 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-BC282704  Glyceria elata John Thomas Howell; Walter Knight; Irja Knight 1966-7-28 1505 Plumas Pond Reservoir, Butterfly Botanical Area and Vicinity 1097 Comment
  CAS-BOT-BC282705  Glyceria elata John Thomas Howell; Walter Knight; Irja Knight 1966-7-28 1470 Plumas Butterfly Canyon, Butterfly Botanical Area and Vicinity 990 Comment
  CAS-BOT-BC282706  Glyceria elata John Thomas Howell 1951-6-28 27647 Plumas Johnsville, Sierra Nevada 1584 Comment
  CAS-BOT-BC282708  Glyceria elata John Thomas Howell 1926-7-30 2153 Plumas Near Prattville 1463 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-BC283807  Leymus cinereus John Thomas Howell 1955-7-19 30758 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC283809  Leymus cinereus John Thomas Howell 1959-9-24 34898 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC283875  Glyceria borealis John Thomas Howell; Gordon H. True 1967-7-9 43263 Plumas Meadow at 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-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-BC284651  Hordeum brachyantherum subsp. brachyantherum John Thomas Howell; Gordon H. True 1969-6-23 45833 Plumas On Middle Fork of Feather River at Nelson Point 1249 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-BC284730  Hordeum jubatum John Thomas Howell 1977-6-20 52408 Plumas On the peninsula of Lake Almanor 1371 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-BC285106  Hordeum marinum subsp. gussoneanum John Thomas Howell 1961-6-21 36686 Plumas Greenville 1097 Comment
  CAS-BOT-BC285544  Cirsium occidentale var. candidissimum John Thomas Howell 1959-9-24 34915 Plumas Crescent Mills 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-BC286444  Cirsium scariosum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54333 Plumas 2.8 miles north-northeast of Englemine on Diamond Mt. Road 1341 Comment
  CAS-BOT-BC286445  Cirsium scariosum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54333 Plumas 2.8 miles north-northeast of Englemine on Diamond Mt. Road 1341 Comment
  CAS-BOT-BC286451  Cirsium scariosum John Thomas Howell 1960-7-24 35985 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-BC28733  Achillea millefolium J. T. Howell; Gordon H. True 1973-7-31 50141 Plumas On road from Janesville to Thompson Peak, Diamond Range 1905 Comment
  CAS-BOT-BC28734  Achillea millefolium J. T. Howell 1961-6-21 36671 Plumas Greenville 1097 Comment
  CAS-BOT-BC28738  Achillea millefolium John Thomas Howell 1955-7-19 30798 Plumas Vinton 1505 Comment
  CAS-BOT-BC28739  Achillea millefolium John Thomas Howell 1960-7-18 35576 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC289229  Holcus lanatus John Thomas Howell 1961-6-21 36600 Plumas Greenville, Sierra Nevada 1097 Comment
  CAS-BOT-BC289438  Hordeum murinum subsp. leporinum John Thomas Howell 1961-6-21 36620 Plumas Greenville, Sierra Nevada 1097 Comment
  CAS-BOT-BC289440  Hordeum murinum subsp. leporinum John Thomas Howell 1967-6-23 42692 Plumas Butterfly Valley, Sierra Nevada 1066 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-BC289620  Cirsium andersonii John Thomas Howell 1960-7-19 35684 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC290325  Crepis John Thomas Howell 1962-6-17 37723 Plumas Portola 1463 Comment
  CAS-BOT-BC290326  Crepis John Thomas Howell 1962-6-17 37724 Plumas Portola 1463 Comment
  CAS-BOT-BC290328  Crepis John Thomas Howell 1962-6-17 37725 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-BC290445  Crepis acuminata John Thomas Howell; Gordon H. True 1973-7-31 50121 Plumas Summit ridge of Thompson Peak, Diamond Range 2133 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-BC293021  Ericameria parryi var. nevadensis John Thomas Howell 1977-8-11 52693 Plumas North end of Frenchmans Reservoir 1706 Comment
  CAS-BOT-BC293027  Ericameria parryi var. nevadensis John Thomas Howell 1959-9-24 34960 Plumas Near Blairsden 1341 Comment
  CAS-BOT-BC293029  Ericameria parryi var. nevadensis John Thomas Howell 1959-9-24 34961 Plumas Near Blairsden 1341 Comment
  CAS-BOT-BC294288  Ericameria nauseosa var. speciosa John Thomas Howell 1959-9-25 35021 Plumas Summit of Beckwourth Pass 1588 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-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-BC294471  Erigeron bloomeri var. bloomeri John Thomas Howell 1962-6-18 37791 Plumas Sierra Valley near Beckwourth 1487 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-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-BC295483  Erigeron lassenianus var. lassenianus John Thomas Howell 1955-7-20 30834 Plumas Mohawk 1371 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-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-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-BC29839  Adenocaulon bicolor John Thomas Howell 1926-7-27 2149 Plumas Near Prattville 1463 Comment
  CAS-BOT-BC299443  Ericameria nauseosa var. speciosa John Thomas Howell 1959-9-24 34975 Plumas Beckwourth, Sierra Nevada 1493 Comment
  CAS-BOT-BC300418  Erigeron eatonii var. sonnei John Thomas Howell 1962-6-17 37699 Plumas Portola 1463 Comment
  CAS-BOT-BC300467  Erigeron filifolius John Thomas Howell 1955-7-19 30772 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC300840  Erigeron glacialis var. glacialis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54104 Plumas 10.6 miles northeast of La Porte on road to Quincy 1889 Comment
  CAS-BOT-BC301313  Eriophyllum lanatum var. croceum John Thomas Howell 1975-6-16 51145 Plumas 2 miles northwest of Spring Garden 1173 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-BC305313  Helianthella John Thomas Howell 1961-6-21 36657 Plumas Greenville 1097 Comment
  CAS-BOT-BC306030  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-BC307376  Gnaphalium palustre John Thomas Howell 1966-7-29 42016 Plumas Quincy, Sierra Nevada 1036 Comment
  CAS-BOT-BC307377  Gnaphalium palustre John Thomas Howell 1960-7-18 35540 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC307379  Gnaphalium palustre John Thomas Howell 1961-9-22 36797 Plumas Wolf Creek, Greenville, Sierra Nevada 1088 Comment
  CAS-BOT-BC307380  Gnaphalium palustre John Thomas Howell 1961-9-23 36876 Plumas Cooks Creek near Englemine, Sierra Nevada 1082 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-BC31155  Carex lemmonii John Thomas Howell 1967-6-23 42703 Plumas butterfly Valley. 1036 Comment
  CAS-BOT-BC31156  Carex lemmonii John Thomas Howell 1962-6-17 37655 Plumas Butterfly Valley. 1036 Comment
  CAS-BOT-BC312292  Heterotheca villosa var. minor John Thomas Howell 1951-6-27 27632 Plumas Jamison Creek, Sierra Nevada 1828 Comment
  CAS-BOT-BC312322  Hieracium John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-12 2109 Plumas Between valley proper and Darlingtonia bog, Butterfly Botanical Area and Vicinity 1066 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-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-BC315014  Hemizonella minima John Thomas Howell; Gordon H. True 1969-6-23 45826 Plumas On Middle Fork of Feather River at Nelson Point, Sierra Nevada 1249 Comment
  CAS-BOT-BC315015  Hemizonella minima John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-6-12 1962 Plumas Trestle Glen, Butterfly Botanical Area and Vicinity 1112 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-BC316900  Packera eurycephala var. lewisrosei John Thomas Howell; Gordon H. True 1967-6-13 42589 Plumas East branch of North Fork of Feather River, 4 miles from Rich Bar on road to Virgilia 822 Comment
  CAS-BOT-BC31694  Carex mariposana John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54343 Plumas 2.8 mi NNE of Englemine on Diamond Mt. Road 1341 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-BC319618  Hieracium albiflorum John Thomas Howell 1959-9-26 35042 Plumas Near Keddie, Sierra Nevada 1005 Comment
  CAS-BOT-BC319620  Hieracium albiflorum John Thomas Howell 1960-7-19 35709 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC32070  Carex multicaulis John Thomas Howell; Gordon H. True 1969-6-23 45807 Plumas 2.6 mi N of Middle Fork of Feather River at Nelson Point 1310 Comment
  CAS-BOT-BC32072  Carex multicaulis John Thomas Howell 1961-6-21 36641 Plumas Greenville 1097 Comment
  CAS-BOT-BC324815  Iva axillaris John Thomas Howell 1951-6-28 27660 Plumas Johnsville, Sierra Nevada 1584 Comment
  CAS-BOT-BC324816  Iva axillaris John Thomas Howell 1955-7-19 30738 Plumas Beckwourth, Sierra Nevada 1493 Comment
  CAS-BOT-BC324818  Iva axillaris John Thomas Howell 1959-9-22 34830 Plumas Wolf Creek 1371 Comment
  CAS-BOT-BC327729  Oreostemma elatum John Thomas Howell 1924-8-19 618 Plumas Butterfly Valley near Quincy Comment
  CAS-BOT-BC328155  Pyrrocoma lucida John Thomas Howell 1955-7-20 30865 Plumas Mohawk, Sierra Nevada 1371 Comment
  CAS-BOT-BC328157  Pyrrocoma lucida John Thomas Howell 1961-9-25 36957 Plumas Portola, Sierra Nevada 1478 Comment
  CAS-BOT-BC328158  Pyrrocoma lucida John Thomas Howell 1959-9-25 35007 Plumas Sierra Valley near Beckwourth, Sierra Nevada 1493 Comment
  CAS-BOT-BC333324  Acer macrophyllum John Thomas Howell 1963-6-3 39399 Plumas Sierra Nevada. Butterfly Valley Comment
  CAS-BOT-BC340345  Kyhosia bolanderi John Thomas Howell 1926-7-31 2172 Plumas Near Prattville 1463 Comment
  CAS-BOT-BC341569  Lagophylla ramosissima John Thomas Howell 1959-9-24 34907 Plumas Crescent Mills 1066 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-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-BC343271  Madia gracilis John Thomas Howell 1961-6-21 36601 Plumas Greenville 1097 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-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-BC343279  Madia gracilis John Thomas Howell 1961-6-21 36601 Plumas Greenville 1097 Comment
  CAS-BOT-BC343283  Madia gracilis John Thomas Howell; Gordon H. True 1967-7-11 43284 Plumas 2 miles from Quincy Junction on road to Mt. Hough 1219 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-BC343287  Madia gracilis John Thomas Howell; Gordon H. True 1967-7-11 43285 Plumas 2 miles from Quincy Junction on road to Mt. Hough 1219 Comment
  CAS-BOT-BC343781  Madia elegans John Thomas Howell 1959-9-24 34911 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC343783  Madia elegans John Thomas Howell 1973-7-10 49727 Plumas Near Greenville 1097 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-BC347524  Malacothrix floccifera John Thomas Howell 1975-6-16 51157 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC347525  Malacothrix floccifera John Thomas Howell 1962-6-17 37671 Plumas Butterfly Valley 1036 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-BC34904  Carex deflexa var. boottii John Thomas Howell 1951-6-27 27591 B Plumas McRae Meadow. 1981 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-BC349334  Microseris nutans John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-6-12 2086 Plumas Butterfly Botanical Area and Vicinity 1127 Comment
  CAS-BOT-BC349335  Microseris nutans John Thomas Howell; Gordon H. True 1967-7-11 43314 Plumas About 3 miles southeast of Mt. Hough 1706 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-BC35506  Carex jonesii John Thomas Howell 1960-7-22 35877 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC35586  Scirpus congdonii John Thomas Howell 1960-7-19 35646 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC35588  Scirpus congdonii John Thomas Howell 1962-6-17 37650 Plumas Butterfly Valley 1036 Comment
  CAS-BOT-BC356381  Pseudognaphalium beneolens John Thomas Howell 1960-8-20 36279 Plumas Near Lassen Volcanic National Park. Kelly Camp, near Drakesbad 1615 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-BC361777  Psilocarphus brevissimus var. brevissimus John Thomas Howell 1962-6-18 37803 Plumas Sierra Valley near Beckwourth 1487 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-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-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-BC363732  Senecio hydrophilus John Thomas Howell 1951-8-20 28218 Plumas Indian Valley 1097 Comment
  CAS-BOT-BC363795  Senecio integerrimus John Thomas Howell 1962-6-17 37697 Plumas Portola 1463 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-BC364396  Senecio triangularis John Thomas Howell; Gordon H. True 1967-7-11 43365 Plumas Southeast slope of Mt. Hough 2042 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-BC365119  Solidago velutina subsp. californica John Thomas Howell 1961-9-23 36879 Plumas Cooks Creek road near Englemine 1082 Comment
  CAS-BOT-BC365514  Solidago elongata John Thomas Howell 1960-7-18 35590 Plumas Lassen Volcanic National Park. Drakesbad 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-BC375052  Stenotus acaulis John Thomas Howell; Gordon H. True 1973-7-31 50079 Plumas Summit ridge of Thompson Peak, Diamond Range 2362 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-BC376492  Crepis occidentalis subsp. conjuncta John Thomas Howell 1951-6-27 27633 Plumas Jamison Creek 1828 Comment
  CAS-BOT-BC376528  Crepis monticola John Thomas Howell 1962-6-17 37666 Plumas Butterfly Valley 1036 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-BC383178  Wyethia angustifolia John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-12 2138 Plumas Butterfly Botanical Area and Vicinity. Pond reservoir 1097 Comment
  CAS-BOT-BC383541  Wyethia mollis John Thomas Howell 1961-6-21 36651 Plumas Greenville 1097 Comment
  CAS-BOT-BC383542  Wyethia mollis John Thomas Howell 1975-6-16 51136 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC383565  Wyethia mollis John Thomas Howell 1955-7-19 30748 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC383566  Wyethia mollis John Thomas Howell 1955-7-19 30748 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC384317  Silene bernardina John Thomas Howell; Gordon H. True 1973-7-31 50113 Plumas Summit ridge of Thompson Peak. Diamond Range 2194 Comment
  CAS-BOT-BC38478  Arctostaphylos mewukka subsp. truei John Thomas Howell; Gordon True 1967-5-9 42229 Plumas Feather River Canyon near mouth of Chambers Creek. 609 Comment
  CAS-BOT-BC38481  Arctostaphylos mewukka subsp. truei John Thomas Howell 1976-4-2 51570 Plumas Injun Jim Campground, North Fork Feather River 609 Comment
  CAS-BOT-BC38482  Arctostaphylos mewukka subsp. truei John Thomas Howell 1976-4-2 51571 Plumas Injun Jim Campground, North Fork Feather River 609 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-BC38486  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-BC384935  Cerastium arvense John Thomas Howell 1967-6-23 42738 Plumas Lewisia Rock, 3.5 miles southwest of Belden, Feather River Canyon 609 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-BC385041  Vitis californica John Thomas Howell; H. Keith Wagnon 1980-5-28 53689 Plumas Sierra Nevada: Indian Falls, near Indian Creek 975 Comment
  CAS-BOT-BC38614  Arctostaphylos mewukka subsp. truei John Thomas Howell 1976-4-2 51572 Plumas Injun Jim Campground, North Fork Feather River 609 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-BC389375  Silene lemmonii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54152 Plumas 3.25 miles west of Round Valley Reservoir dam 1633 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-BC389378  Silene lemmonii John Thomas Howell; Gordon H. True 1967-7-11 43311 Plumas About 3 miles southeast of Mt. Hough 1706 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-BC391186  Stellaria longipes subsp. longipes John Thomas Howell 1960-7-18 35516 Plumas Lassen Volcanic National Park. Drakesbad 1828 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-BC391472  Aconitum columbianum subsp. columbianum John Thomas Howell 1926-7-31 2175 Plumas Near Prattville 1463 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-BC391997  Anemone oregana John Thomas Howell 1963-6-3 39396 Plumas Butterfly Valley 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-BC397727  Stellaria nitens John Thomas Howell 1975-6-16 51160 Plumas 2 miles NW of Spring Garden 1173 Comment
  CAS-BOT-BC397878  Aquilegia formosa John Thomas Howell 1951-8-19 28170 Plumas 3 miles east of Rich Bar 853 Comment
  CAS-BOT-BC397892  Aquilegia formosa John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54146 Plumas 2.65 miles west of Round Valley Reservoir dam 1569 Comment
  CAS-BOT-BC40001  Arctostaphylos nevadensis John Thomas Howell 1960-7-20 35778 Plumas Between Boiling Springs Lake and Terminal Geyser. 1859 Comment
  CAS-BOT-BC40006  Arctostaphylos nevadensis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54402 Plumas Walker Plain, about 8 miles southwest of Bucks Lake on road to Oroville 1554 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-BC400945  Hypericum anagalloides John Thomas Howell 1961-9-22 36799 Plumas Wolf Creek, Greenville 1088 Comment
  CAS-BOT-BC402455  Dicentra formosa subsp. formosa John Thomas Howell 1960-7-20 35719 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC402542  Dicentra pauciflora John Thomas Howell; Gordon H. True 1967-7-11 43362 Plumas Southeast slope of Mt. Hough 2042 Comment
  CAS-BOT-BC403352  Eschscholzia californica John Thomas Howell 1959-9-24 34918 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC409920  Arceuthobium campylopodum John Thomas Howell 1960-7-19 35669 Plumas Lassen Volcanic National Park, Drakesbad 1828 Comment
  CAS-BOT-BC413560  Persicaria amphibia John Thomas Howell 1961-9-25 36940 Plumas Feather River bed, Portola 1478 Comment
  CAS-BOT-BC413561  Persicaria amphibia John Thomas Howell 1926-7-30 2160 Plumas Prattville 1371 Comment
  CAS-BOT-BC41399  Draba verna John Thomas Howell; Gordon H. True 1967-5-7 42189 Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC414549  Polygonum douglasii John Thomas Howell 1959-9-22 34847 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC414550  Polygonum douglasii John Thomas Howell 1960-7-18 35569 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC414553  Polygonum douglasii John Thomas Howell 1926-7-26 2142 Plumas Near Prattville 1371 Comment
  CAS-BOT-BC414554  Polygonum douglasii John Thomas Howell 1951-8-19 28193 Plumas Greenville 1097 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-BC414564  Polygonum douglasii John Thomas Howell; Gordon H. True 1973-7-31 50132 Plumas On road from Janesville to Thompson Peak, Diamond Range 1981 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-BC419836  Polygonum parryi John Thomas Howell; Gordon H. True 1967-7-11 43290 Plumas 2.5 miles from Quincy Junction on road to Mt. Hough 1249 Comment
  CAS-BOT-BC419837  Polygonum parryi John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-6-12 1998 Plumas Butterfly Botanical Area and Vicinity 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-BC419886  Polygonum polygaloides subsp. confertiflorum John Thomas Howell 1962-6-18 s.n. Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC419888  Polygonum polygaloides subsp. confertiflorum John Thomas Howell 1962-6-18 37807 Plumas Sierra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC420148  Polygonum ramosissimum subsp. ramosissimum John Thomas Howell 1951-8-19 28192 Plumas Greenville 1097 Comment
  CAS-BOT-BC420208  Polygonum sawatchense subsp. sawatchense John Thomas Howell 1960-7-19 35698 Plumas Lassen Volcanic National Park. Drakesbad 1828 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-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-BC421036  Polygonum spergulariiforme John Thomas Howell 1955-7-19 30805 Plumas Vinton 1505 Comment
  CAS-BOT-BC421037  Polygonum spergulariiforme John Thomas Howell 1959-9-24 34963 Plumas Sierra Valley near Beckwourth 1478 Comment
  CAS-BOT-BC42107  Arctostaphylos patula John Thomas Howell 1976-7-14 51826 Plumas American Valley near Quincy on road to Quincy Junction 1036 Comment
  CAS-BOT-BC42109  Arctostaphylos patula John Thomas Howell 1975-7-22 51357 Plumas In the Transition Life Zone, 2 miles northwest of Spring Garden 1173 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-BC422166  Rumex californicus John Thomas Howell 1961-9-23 36836 Plumas Indian Valley 1082 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-BC424166  Heuchera micrantha var. erubescens John Thomas Howell; Gordon H. True 1969-6-23 45828 Plumas Middle Fork of Feather River at Nelson Point 1249 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-BC428429  Lithophragma tenellum John Thomas Howell 1951-6-27 s.n. Plumas Jamison Creek 1828 Comment
  CAS-BOT-BC428539  Micranthes aprica John Thomas Howell 1951-6-28 27688 Plumas Eureka Peak 2133 Comment
  CAS-BOT-BC429241  Micranthes oregana John Thomas Howell 1967-6-23 42714 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC43033  Descurainia incisa subsp. incisa John Thomas Howell 1951-6-27 27576 Plumas Sierra Nevada. Johnsville. 1584 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-BC433518  Rumex fueginus John Thomas Howell 1961-9-25 36948 Plumas Feather River bed, Portola 1478 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-BC434306  Rumex triangulivalvis John Thomas Howell 1960-7-18 35527 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-BC434310  Rumex triangulivalvis John Thomas Howell 1960-7-19 35624 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC434312  Rumex triangulivalvis John Thomas Howell; Gordon H. True 1967-7-9 43268 Plumas At Quincy 1036 Comment
  CAS-BOT-BC43503  Descurainia sophia John Thomas Howell 1955-7-19 30787 Plumas Sierra Nevada. Vinton. 1505 Comment
  CAS-BOT-BC436674  Luzula comosa var. laxa John Thomas Howell 1960-7-20 35739 Plumas Lassen Volcanic National Park: Boiling Springs Lake to Drakesbad 1828 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-BC438483  Calandrinia ciliata John Thomas Howell 1951-6-28 27668 Plumas Jamison Creek 1584 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-BC443641  Claytonia perfoliata subsp. perfoliata John Thomas Howell; Gordon H. True 1967-5-9 42216 Plumas Lewisia Rock, 3.5 miles southwest of Belden, Feather River Canyon 609 Comment
  CAS-BOT-BC444562  Lewisia triphylla John Thomas Howell 1960-7-22 35897 Plumas Lassen Volcanic National Park. Devil's Kitchen to Drakesbad 1828 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-BC444743  Montia chamissoi John Thomas Howell 1960-7-18 35542 Plumas Lassen Volcanic National Park. 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-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-BC445094  Montia linearis John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-6-12 2080 Plumas Butterfly Botanical Area and Vicinity 1127 Comment
  CAS-BOT-BC451589  Lilaea scilloides John Thomas Howell 1963-6-4 39406 Plumas Marble Hot Springs, Sierra Valley Comment
  CAS-BOT-BC453565  Pterospora andromedea John Thomas Howell 1955-7-20 30852 Plumas Sierra Nevada: Mohawk 1371 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-BC47069  Arctostaphylos viscida subsp. viscida John Thomas Howell; Gordon True 1967-7-11 43286 Plumas 2 mi. from Quincy Junction on road to Mt. Hough. 1219 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-BC47970  Ceanothus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54361 Plumas Sierra Nevada - Near Indian Creek about 0.75 miles northwest of northwest arm of Antelope Reservoir 1600 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-BC48609  Ceanothus cordulatus John Thomas Howell; Gordon H. True 1969-6-23 45814 Plumas Open meadow 2 miles north of Nelson Point on road to Quincy 1310 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-BC48617  Ceanothus cordulatus John Thomas Howell 1924-8-9 603 Plumas Two miles east of Chester on Road to Westwood 1310 Comment
  CAS-BOT-BC49031  Ceanothus cuneatus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54297 Plumas Sierra Nevada - East side of Indian Valley just north of Taylorsville 1112 Comment
  CAS-BOT-BC49180  Ceanothus cuneatus John Thomas Howell 1959-9-21 34775 Plumas N. Fk. Feather River near Belden 701 Comment
  CAS-BOT-BC49181  Ceanothus cuneatus John Thomas Howell 1951-6-26 27549 Plumas Feather River Canyon 853 Comment
  CAS-BOT-BC50735  Ceanothus integerrimus John Thomas Howell 1976-7-16 51877 Plumas Sierra Nevada - Spanish Creek near mouth of Slate Creek 1066 Comment
  CAS-BOT-BC52059  Ceanothus prostratus John Thomas Howell; Gordon H. True 1973-7-31 50123 Plumas on road from Janesville to Thompson Peak, Diamond Range 1981 Comment
  CAS-BOT-BC52060  Ceanothus prostratus John Thomas Howell; Gordon H. True 1967-7-11 43320 Plumas about 3 miles Southeast of Mt. Hough 1706 Comment
  CAS-BOT-BC52165  Ceanothus pumilus John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1969-6-24 2463 Plumas Across road from Overnight Camp 1097 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-BC55684  Frangula purshiana John Thomas Howell 1963-6-3 39395 Plumas Butterfly Valley Comment
  CAS-BOT-BC55686  Frangula purshiana John Thomas Howell 1959-9-21 34741 Plumas Belden 701 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-BC56994  Equisetum arvense John Thomas Howell 1976-7-15 51856 Plumas Snake Lake, about 4 miles northwest of Quincy 1219 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-BC57005  Equisetum arvense John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2171 Plumas Mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC57007  Equisetum arvense John Thomas Howell 1977-6-21 52385 Plumas Seneca 1097 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-BC59563  Rhamnus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54298 Plumas Sierra Nevada - East side of Indian Valley just north of Tylorsville 1112 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-BC59568  Rhamnus John Thomas Howell 1976-7-20 52037 Plumas Sierra Nevada - south end of Lake Almanor 1371 Comment
  CAS-BOT-BC59571  Rhamnus alnifolia John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54408 Plumas Sierra Nevada - Walker Plain, about 8 miles southwest of Bucks Lake on road to Oroville 1524 Comment
  CAS-BOT-BC59572  Rhamnus alnifolia John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54408 Plumas Sierra Nevada - Walker Plain, about 8 miles southwest of Bucks Lake on road to Oroville 1524 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-BC59580  Frangula rubra subsp. rubra John Thomas Howell 1975-6-16 51134 Plumas Sierra Nevada - 2 miles northwest of Spring Garden 1173 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-BC59583  Frangula rubra subsp. rubra John Thomas Howell 1973-7-10 49731 Plumas Sierra Nevada - near Greenville 1097 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-BC61863  Isoetes nuttallii John Thomas Howell; Gordon H. True; Walter Knight; Irja Knight 1967-7-12 2145 Plumas Pond reservoir 1097 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-BC64185  Sedum obtusatum subsp. obtusatum John Thomas Howell 1951-6-27 s.n. Plumas Jamison Creek 1828 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-BC6510  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-BC6512  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-BC66093  Athyrium filix-femina var. cyclosorum John Thomas Howell 1926-7-27 2144 Plumas Near Prattville 1463 Comment
  CAS-BOT-BC66094  Athyrium filix-femina var. cyclosorum John Thomas Howell 1951-6-27 27611 Plumas Jamison Creek 1950 Comment
  CAS-BOT-BC66241  Azolla mexicana John Thomas Howell 1959-9-21 34825 Plumas Crescent Mills 1066 Comment
  CAS-BOT-BC66243  Azolla mexicana John Thomas Howell 1961-9-23 36859 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC66351  Cheilanthes covillei John Thomas Howell 1967-6-22 42659 Plumas near mouth of Chambers Creek, Canyon of the Feather River North Fork 609 Comment
  CAS-BOT-BC69584  Aspidotis densa John Thomas Howell 1951-6-27 27636 Plumas Jamison Creek. 1828 Comment
  CAS-BOT-BC69585  Aspidotis densa John Thomas Howell 1959-9-21 34773 Plumas N. Fk. Feather River near Belden. 701 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-BC70669  Cystopteris fragilis John Thomas Howell; Gordon H. True 1967-5-9 42210 Plumas Lewisia Rock, 3.5 miles southwest of Belden, Feather River Canyon 609 Comment
  CAS-BOT-BC70677  Cystopteris fragilis John Thomas Howell 1951-6-27 27635 Plumas Jamison Creek 1828 Comment
  CAS-BOT-BC71086  Marsilea vestita John Thomas Howell 1926-7-30 2159 Plumas Lake Almanor Comment
  CAS-BOT-BC72022  Polypodium calirhiza John Thomas Howell 1967-6-23 42731 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-BC72356  Polystichum imbricans subsp. imbricans John Thomas Howell 1960-7-20 35748 Plumas Boiling Springs Lake 1798 Comment
  CAS-BOT-BC72508  Polystichum scopulinum John Thomas Howell; Gordon H. True 1967-7-11 43349 Plumas Summit ridge of Mt. Hough 2194 Comment
  CAS-BOT-BC72609  Pteridium aquilinum John Thomas Howell 1961-6-21 36675 Plumas Greenville 1097 Comment
  CAS-BOT-BC74009  Turritis glabra John Thomas Howell 1960-7-20 35729 Plumas Lassen Volcanic National Park. Drakesbad. 1828 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-BC74626  Rorippa curvisiliqua John Thomas Howell 1959-9-25 34996 Plumas Sierra Nevada. Beach of Feather River. Portola. 1478 Comment
  CAS-BOT-BC74627  Rorippa curvisiliqua John Thomas Howell 1960-7-19 35617 Plumas Lassen Volcanic National Park. Drakesbad. 1828 Comment
  CAS-BOT-BC74967  Sinapis arvensis John Thomas Howell; Gordon H. True 1968-6-10 44539 Plumas Sierra Nevada. Quincy. 1036 Comment
  CAS-BOT-BC75115  Sisymbrium altissimum John Thomas Howell 1955-7-19 30765 Plumas Sierra Nevada. Beckwourth. 1493 Comment
  CAS-BOT-BC75117  Sisymbrium altissimum John Thomas Howell 1959-9-24 34917 Plumas Sierra Nevada. Crescent Mills. 1066 Comment
  CAS-BOT-BC7552  Carex infirminervia John Thomas Howell 1951-6-27 27589 Plumas McRae Meadow 1981 Comment
  CAS-BOT-BC76023  Berberis repens John Thomas Howell 1961-6-21 36702 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-BC7743  Carex integra John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54167 Plumas 3.25 miles west of Round Valley Reservoir dam. 1633 Comment
  CAS-BOT-BC77732  Thelypteris nevadensis John Thomas Howell 1963-6-3 39393 Plumas Butterfly Valley Comment
  CAS-BOT-BC77979  Abies concolor John Thomas Howell; Gordon H. True 1973-7-31 50066 Plumas summit ridge of Thompson Peak, Diamond Range 2362 Comment
  CAS-BOT-BC78093  Abies magnifica John Thomas Howell; Gordon H. True 1973-7-31 50065 Plumas summit ridge of Thompson Peak, Diamond Range 2362 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-BC78690  Pinus jeffreyi John Thomas Howell 1962-6-17 37691 Plumas Portola 1463 Comment
  CAS-BOT-BC78945  Pinus monticola John Thomas Howell 1960-7-20 35777 Plumas Between Boiling Springs Lake and Terminal Geyser 1859 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-BC82214  Arnica chamissonis John Thomas Howell 1960-7-22 35872 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC82219  Arnica chamissonis John Thomas Howell 1926-7-30 2157 Plumas Prattville 1371 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-BC82500  Arnica discoidea John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54222 Plumas About 5 miles southeast of Mt. Hough on the road to Quincy 1584 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-BC87781  Streptanthus tortuosus John Thomas Howell 1951-6-27 27638 Plumas Sierra Nevada. Jamison Creek. 1828 Comment
  CAS-BOT-BC87782  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-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-BC88639  Idahoa scapigera John Thomas Howell 1975-6-16 51162 Plumas Sierra Nevada. 2 miles northwest of Spring Garden. 1173 Comment
  CAS-BOT-BC88775  Lepidium appelianum John Thomas Howell 1962-6-19 37875 Plumas Sierra Nevada. Vinton. 1508 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-BC8920  Delphinium depauperatum John Thomas Howell 1962-6-17 37708 Plumas Portola 1463 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-BC90405  Artemisia douglasiana John Thomas Howell 1961-9-22 36802 Plumas Greenville 1088 Comment
  CAS-BOT-BC90407  Artemisia douglasiana John Thomas Howell; Gordon H. True 1974-7-29 50631 Plumas Quincy 1036 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-BC90413  Artemisia douglasiana John Thomas Howell 1977-8-11 52677 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir 1676 Comment
  CAS-BOT-BC90414  Artemisia douglasiana John Thomas Howell 1955-7-19 30826 A Plumas Mohawk 1371 Comment
  CAS-BOT-BC90570  Artemisia dracunculus John Thomas Howell 1959-9-25 35000 Plumas 2 miles east of Portola 1484 Comment
  CAS-BOT-BC90571  Artemisia dracunculus John Thomas Howell 1977-8-11 52668 Plumas Canyon of Little Last Chance Creek between Chilcoot and Frenchmans Reservoir 1676 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-BC93477  Artemisia tridentata subsp. tridentata John Thomas Howell 1959-9-24 34970 Plumas Sierra Nevada - Beckworth 1487 Comment
  CAS-BOT-BC93978  Quercus durata John Thomas Howell 1959-9-21 34789 Plumas Rich Bar 762 Comment
  CAS-BOT-BC93980  Quercus durata John Thomas Howell 1959-9-21 34788 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-BC93983  Quercus durata John Thomas Howell 1951-6-26 27532 Plumas near Rich Bar 792 Comment
  CAS-BOT-BC93984  Quercus durata John Thomas Howell 1951-8-19 28168 Plumas near Rich Bar 792 Comment
  CAS-BOT-BC94264  Quercus garryana John Thomas Howell 1959-9-26 35067 Plumas near Virgilia 838 Comment
  CAS-BOT-BC97467  Aster John Thomas Howell 1976-7-16 51913 Plumas on flood plain of Spanish Creek at mouth of Wapaunsie Creek 1097 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-BC97613  Symphyotrichum campestre John Thomas Howell 1955-7-19 30783 Plumas Vinton 1505 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-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-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
  CDA23331  Atriplex truncata J. T. Howell 1959-9-25 35017 Plumas Sierra Nevada; 5 miles east of Beckwourth, Sierra Valley. Comment
  CDA23677  Amaranthus californicus J. T. Howell 1959-9-21 34767 Plumas Sierra Nevada; Bars of North Fork of Feather River near Belden. Comment
  CHSC25461  Crypsis alopecuroides John Thomas Howell 1977-8-11 52716 Plumas Sierra Nevada. Bottom of Frenchmans Reservoir on est side near Big Cove. 1706 Comment
  JEPS14093  Perideridia parishii subsp. latifolia John Thomas Howell 1926-7-31 2169 Plumas near Prattville 1463 Comment
  JEPS28115  Symphyotrichum spathulatum J. Thomas Howell 1960-7-18 35563 Plumas Drakesbad Lassen Volcanic National Park, Drakesbad 1676 Comment
  JEPS29543  Galium trifidum var. pacificum John Thomas Howell 1960-7-23 35959 Plumas Drakesbad Lassen Volcanic National Park (nr. soda spring) 1676 Comment
  JEPS29551  Mimulus primuloides John Thomas Howell 1960-7-23 35952 Plumas Drakesbad Lassen Volcaninc 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
  JEPS29571  Pseudognaphalium thermale John Thomas Howell 1960-7-20 35756 Plumas Boiling Springs Lake Lassen Volcanic Park, Boiling Springs Lake 1798 Comment
  JEPS29573  Helenium bigelovii John Thomas Howell 1960-7-18 35532 Plumas Drakesbad Lassen Volcanic National Park, Drakesbad 1676 Comment
  JEPS33711  Epilobium brachycarpum John Thomas Howell 1926-7-23 2095 Plumas near Prattville 1463 Comment
  JEPS33713  Epilobium ciliatum subsp. ciliatum John Thomas Howell 1926-7-31 2177 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
  JEPS55982  Phacelia hastata subsp. compacta John Thomas Howell 1955-7-19 30808 Plumas Vinton Sierra Valley 1505 Comment
  JEPS58958  Symphyotrichum spathulatum J. Thomas Howell 1961-9-23 36828 Plumas Indian Valley Sierra Nevada, Indian Valley 1082 Comment
  JEPS58959  Symphyotrichum spathulatum J. Thomas Howell 1961-9-25 36958 Plumas Portola Sierra Nevada 1478 Comment
  JEPS58961  Symphyotrichum ascendens J. Thomas Howell 1959-9-24 34973 Plumas Beckwourth Sierra Nevada 1487 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
  JEPS75241  Ericameria parryi var. nevadensis John Thomas Howell 1961-9-23 36878 Plumas Cooks Creek Road near Englemine 1082 Comment
  JEPS75242  Ericameria parryi var. nevadensis John Thomas Howell 1959-9-24 34961 Plumas near Blairsden 1341 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
  JEPS75281  Ericameria parryi var. nevadensis John Thomas Howell 1959-9-24 34967 Plumas near Beckwourth; Sierra Valley 1478 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
  JEPS85656  Trichostema oblongum John Thomas Howell 1926-7-26 2141 Plumas near Prattville 1371 Comment
  JEPS85670  Lupinus John Thomas Howell 1926-7-30 2154 Plumas Prattville 1310 Comment
  JEPS9090  Castilleja arachnoidea John Thomas Howell 1951-6-28 27696 Plumas Eureka Peak 1981 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
  NY546654  Poa sierrae J. T. Howell 1967-5-9 42204 -[female] Plumas Sierra Nevada. 3.5 miles SW of belden, Feather River Canyon 609.6 Comment
  NY546655  Poa sierrae J. T. Howell 1967-5-9 42204 -[male] Plumas Sierra Nevada. 3.5 miles SW of belden, Feather River Canyon 609.6 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
  RSA201259  Madia glomerata J. T. Howell 1960-7-18 35601 Plumas Drakesbad. Lassen Volcanic National Park. 1677 Comment
  RSA201261A  Gnaphalium palustre J. T. Howell 1959-9-22 34865 Plumas Plants of Lassen Volcanic National Park. On Pinus Murrayana, Drakesbad, 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
  RSA201284A  Cryptantha sobolifera J. T. Howell 1960-7-18 35545 Plumas Wooded meadow borders. 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
  RSA201292  Rumex salicifolius var. triangulivalvis J. T. Howell 1960-7-19 35616 Plumas Drakesbad 1677 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
  RSA201301  Melica subulata J. T. Howell 1960-7-23 35965 Plumas Dream Lake, Drakesbad 1677 Comment
  RSA201302  Achnatherum occidentale subsp. californicum J. T. Howell 1960-7-20 35787 Plumas Between boiling Springs Lake and Terminal Geyser. 1860 Comment
  RSA201311  Salix lemmonii J. T. Howell 1960-7-20 35725 Plumas Drakesbad. 1677 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
  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
  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
  RSA201347A  Cryptantha affinis J. T. Howell 1960-7-17 35487 Plumas Drakesbad. 1677 Comment
  RSA201348  Muhlenbergia filiformis J. T. Howell 1960-9-22 34846 Plumas Drakesbad. 1738 Comment
  RSA201353  Bromus marginatus J. T. Howell 1960-7-18 35564 Plumas Lassen Volcanic National Park; Drakesbad 1677 Comment
  RSA201354  Bromus marginatus J. T. Howell 1960-7-20 35760 Plumas Boiling Springs Lake 1799 Comment
  RSA201357  Panicum capillare J. T. Howell 1960-7-20 35761 Plumas Boilings Springs Lake; Lassen Volcanic National Park 1799 Comment
  RSA201358  Melica subulata J. T. Howell 1960-7-23 35965 Plumas Dream Lake, Drakesbad 1677 Comment
  RSA201362  Deschampsia danthonioides J. T. Howell 1960-7-19 35619 Plumas Lassen Volcanic National Park; Drakesbad 1677 Comment
  RSA201364  Panicum capillare J. T. Howell 1969-9-22 34868 Plumas Drakesbad; Lasses Volcanic National Park 1738 Comment
  RSA201365  Carex lemmonii J. T. Howell 1960-7-23 35946 Plumas Lassen Volcanic National Park. Drakesbad. Near Soda Spring. 1677 Comment
  RSA201366  Veratrum californicum J. T. Howell 1960-8-20 36278 Plumas Drakesbad 1677 Comment
  RSA201373  Eriogonum spergulinum var. reddingianum J. T. Howell 1960-7-18 35577 Plumas Wooded meadow borders. Drakesbad. 1677 Comment
  RSA215971  Agrostis pallens J. T. Howell 1957-6-30 32793 Plumas Hunters Point Comment
  RSA244737  Viola beckwithii J. T. Howell 1962-6-18 37792 Plumas Sierra Valley near Beckwourth. 1488 Comment
  RSA2501309  Elymus glaucus J. T. Howell 1960-7-18 35598 Plumas Lassen Volcanic National Park; Meadow near bath house, Drakesbad 1677 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
  RSA28267  Lupinus albicaulis subsp. wolfianus J. T. Howell 1951-8-20 28206 Plumas Taylorsville 1082 Comment
  RSA29125  Lupinus apertus J. T. Howell 1951-6-27 27606 Plumas Jamison Creek. 1890 Comment
  RSA291301  Stellaria longipes J. T. Howell 1960-7-18 35516 Plumas Drakesbad. 1677 Comment
  RSA29208  Lotus argophyllus var. fremontii J. T. Howell 1951-6-29 27767 Plumas Feather River Canyon 549 Comment
  RSA299170  Elymus repens J. T. Howell 1959-9-25 35036 Plumas Quincy 1037 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
  RSA299612  Eragrostis mexicana subsp. virescens J. T. Howell, I. Knight, Walter Knight, Gordon H. True 1967-7-10 2190 Plumas Mouth of Butterfly Creek 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
  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
  RSA300171  Poa palustris J. T. Howell 1955-7-19 30735 Plumas Portola; Sierra Nevada 1479 Comment
  RSA300172  Poa palustris J. T. Howell 1961-9-23 36852 Plumas Indian Valley; Sierra Nevada 1082 Comment
  RSA300179  Festuca occidentalis J. T. Howell 1973-7-10 49750 Plumas Open yellow pine forest near Greenville. 2622 Comment
  RSA35773  Agrostis scabra J. T. Howell 1960-7-20 s.n. Plumas Boilings Springs Lake; Lassen Volcanic National Park 1799 Comment
  RSA504196  Salix melanopsis J. T. Howell, Gordon H. True 1967-7-9 43253 Plumas N Fork of Feather River. 3 miles SW of Caribou. 854 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
  RSA517192  Rhamnus rubra J. T. Howell 1975-6-16 51133 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
  RSA518958  Ceanothus integerrimus var. californicus J. T. Howell, G. H. True 1969-6-23 45803 Plumas Open meadow 2 miles N of Nelson Point on road to Quincy 1311 Comment
  RSA518963  Rhamnus rubra J. T. Howell 1973-7-10 49731 Plumas Open yellow pine forest near Greenville. 1098 Comment
  RSA551252  Rhamnus J. T. Howell 1976-7-20 52038 Plumas transition zone forest at S end of Lake Almanor 1372 Comment
  RSA551259  Monardella sheltonii J. T. Howell 1975-7-22 51350 Plumas 2 miles NW of Spring Garden 1174 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
  RSA88084  Antennaria rosea J. T. Howell 1951-6-28 27718 Plumas Eureka Peak. 2195 Comment
  RSA88087  Crepis occidentalis subsp. conjuncta J. T. Howell 1951-6-27 27633 Plumas Jamison Creek 1829 Comment
  RSA88108  Vulpia microstachys var. ciliata J. T. Howell 1951-6-28 27669 Plumas Jamison Creek. 1585 Comment
  RSA88117  Achnatherum lemmonii var. lemmonii J. T. Howell 1951-6-29 27745 Plumas Spring Garden Creek. 1159 Comment
  RSA88123  Bromus commutatus J. T. Howell 1951-6-26 27538 Plumas Feather River Canyon 854 Comment
  RSA88127  Calamagrostis koelerioides J. T. Howell 1951-6-26 27537 Plumas Feather River Canyon; Sierra Nevada. 854 Comment
  RSA88132  Cordylanthus tenuis subsp. tenuis J. T. Howell 1951-8-20 28224 Plumas Indian Valley. 1098 Comment
  RSA88185  Agrostis pallens J. T. Howell 1951-6-28 27686 Plumas Eureka Peak 1982 Comment
  RSA88399  Castilleja applegatei subsp. pinetorum J. T. Howell 1951-6-28 27715 Plumas Eureka Peak. 2195 Comment
  RSA88405  Pteryxia terebinthina J. T. Howell 1951-6-28 27704 Plumas Eureka Peak. 2195 Comment
  RSA88406  Osmorhiza occidentalis J. T. Howell 1951-6-28 27652 Plumas Johnsville 1585 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
  RSA88424  Mimulus nanus var. mephiticus J. T. Howell 1951-6-27 27609 Plumas Jamison Creek. 1890 Comment
  RSA88457  Nemacladus interior J. T. Howell 1951-6-29 27761 Plumas Feather River Canyon 549 Comment
  RSA88459  Galium bolanderi J. T. Howell 1951-6-28 27730 Plumas Eureka Lake. 1890 Comment
  RSA88460  Galium grayanum var. grayanum J. T. Howell 1951-6-28 27722 Plumas Eureka Peak. 2226 Comment
  RSA88461  Galium grayanum var. grayanum J. T. Howell 1951-6-28 27723 Plumas Eureka Peak. 2226 Comment
  RSA88490  Arabis breweri J. T. Howell 1951-6-28 27665 Plumas Jamison Creek Canyon 1585 Comment
  RSA88503  Oenothera villosa subsp. strigosa J. T. Howell 1951-8-20 28197 Plumas Indian Valley. 1067 Comment
  RSA88509  Rhamnus alnifolia J. T. Howell 1951-6-27 27617 Plumas Jamison Creek 1829 Comment
  RSA88510  Rhamnus tomentella subsp. crassifolia J. T. Howell 1951-8-19 28167 Plumas Serpentine near Rich Bar. 793 Comment
  RSA88555  Horkelia fusca subsp. parviflora J. T. Howell 1951-6-27 27594 Plumas McRae Meadow. 1982 Comment
  RSA88570  Acer glabrum var. torreyi J. T. Howell 1951-6-28 27700 Plumas Eureka Peak 1982 Comment
  RSA88594  Eriogonum ursinum J. T. Howell 1951-6-27 27630 Plumas Jamison Creek 1829 Comment
  RSA88598  Quercus garryana var. semota J. T. Howell 1951-6-26 27548 Plumas Feather River Canyon 854 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
  SBBG115939  Bromus japonicus J. T. Howell 1977-6-24 52417 Plumas near confluence of Spanish and Indian Crks 929 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
  SBBG50219  Garrya fremontii J. T. Howell 1959-9-26 Plumas near Keddie 1005 Comment
  SBBG50454  Ericameria nauseosa var. speciosa J. T. Howell 1974-9-20 50902 Plumas near Spring Garden 1158 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
  SD130391  Carex echinata subsp. echinata John Thomas Howell 1962-6-17 37656 Plumas Sierra Nevada; Butterfly Valley. 1036 Comment
  SD130488  Epilobium ciliatum subsp. ciliatum John Thomas Howell 1976-7-16 51886 Plumas Hydraulic mining gravels on flood plain of Spanish Creek at mouth of Wapaunsie Creek. 1096 Comment
  SD130489  Epilobium ciliatum subsp. ciliatum John Thomas Howell 1976-7-16 51887 Plumas Hydraulic mining gravels on flood plain of Spanish Creek at mouth of Wapaunsie Creek. 1096 Comment
  SD130950  Carex scabriuscula John Thomas Howell, T. C. Fuller, G. D. Barbe 1981-6-23 54148 Plumas Sierra Nevada; 2.65 miles west of Round Valley Reservoir dam; rocky serpentine slope in open coniferous forest.; in seepage area. 1538 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
  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
  SD149109  Rhamnus John Thomas Howell 1976-7-20 52038 Plumas Transition zone forest at south end of Lake Almanor 1372 Comment
  SD149111  Rhamnus John Thomas Howell, T. C. Fuller, G. D. Barbe 1981-6-25 54298 Plumas East side of Indian Valley just north of Taylorsville 1111 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
  SD149161  Lycopus americanus John Thomas Howell 1961-9-23 36851 Plumas Indian Valley, Sierra Nevada. 1082 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
  SD149191  Sparganium eurycarpum John Thomas Howell 1961-9-25 36955 Plumas Feather River bed, Portola 1477 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
  SD71005  Juncus occidentalis John Thomas Howell 1960-7-18 35550 Plumas Lassen Volcanic National Park, 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
  SD71013  Arceuthobium americanum John Thomas Howell 1959-9-22 34866 Plumas Drakesbad 1676 Comment
  SD71014  Rumex triangulivalvis John Thomas Howell 1960-7-19 35624 Plumas Meadow, Drakesbad, Lassen Volcanic National Park 1676 Comment
  SD72047  Astragalus lentiformis John Thomas Howell 1962-6-17 37702 Plumas Portola, with sagebrush under Jeffrey pines 1463 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
  SEINET224361  Artemisia cana John Thomas Howell 1961-9-24 Plumas Plumas County: Near Feather River bridge, SW of Beckwourth. 1487 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
  UC2015884  Carex canescens John Thomas Howell 1976-7-15 51841 Plumas Snake Lake, about 4 miles northwest of Quincy. Comment
  UC421643  Plagiobothrys mollis John Thomas Howell 1926-7-30 2156 Plumas Prattville 1371 Comment
  UC688909  Athyrium filix-femina var. cyclosorum John Thomas Howell 1926-7-27 2144 Plumas near Prattville 1463 Comment
  UC971755  Linanthus harknessii J. T. Howell 1926-7-30 2168 Plumas Lake Almanor Comment
  UCD100067  Polygonum aviculare subsp. depressum John Thomas Howell 1959-9-22 34863 Plumas Lassen Volcanic National Park, Drakesbad. 1737 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
  UCD100420  Eriogonum microthecum var. laxiflorum John Thomas Howell 1973-7-31 50070 Plumas summit ridge of Thompson Peak; Diamond Range. 2362 Comment
  UCD100757  Eriogonum palmerianum John Thomas Howell 1955-7-19 30806 Plumas Vinton. 1511 Comment
  UCD101249  Eriogonum spergulinum var. reddingianum John Thomas Howell 1960-7-18 35577 Plumas Drakesbad. 1676 Comment
  UCD101479  Rumex triangulivalvis John Thomas Howell 1960-7-19 35624 Plumas Drakesbad. 1676 Comment
  UCD101492  Eriogonum umbellatum var. polyanthum John Thomas Howell 1974-9-20 50898 Plumas 2 miles from Spring Garden on road to Quincy. 1158 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
  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
  UCD111558  Urtica dioica subsp. holosericea John Thomas Howell 1960-7-20 35717 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD114066  Spiraea splendens John Thomas Howell 1951-6-26 s.n. Plumas Jasmine Creek. 1828 Comment
  UCD114968  Hesperis matronalis John Thomas Howell; Gordon H. True 1967-7-11 43380 Plumas Meadow at Quincy. 1036 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
  UCD119372  Hackelia californica John Thomas Howell 1960-7-19 35668 Plumas Drakesbad. 1676 Comment
  UCD120098  Cryptantha torreyana John Thomas Howell 1960-7-18 35545 Plumas Lassen Volcanic National Park, Drakesbad. 1676 Comment
  UCD120666  Phacelia racemosa John Thomas Howell 1960-7-22 35914 Plumas Devils Kitchen to 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
  UCD122882  Mimulus primuloides John Thomas Howell 1960-7-23 35952 Plumas near Soda Springs, Drakesbad. 1676 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
  UCD130278  Chaenactis douglasii var. douglasii John Thomas Howell 1960-8-20 36285 Plumas Kelly Camp, near Drakesbad. 1615 Comment
  UCD131323  Ericameria bloomeri John Thomas Howell 1926-7-24 36282 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
  UCD131489  Ericameria nauseosa var. speciosa John Thomas Howell 1974-9-20 50902 Plumas near Spring Garden. 1158 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
  UCD134269  Madia glomerata John Thomas Howell 1960-7-18 35601 Plumas Lassen Volcanic National Park. Drakesbad. 1676 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
  UCD140125  Carex aurea John Thomas Howell 1960-7-18 35508 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD140184  Carex brainerdii John Thomas Howell 1960-7-22 35911 Plumas Devils Kitchen to Drakesbad. Lassen Volcanic National Park. 1676 Comment
  UCD140409  Carex jonesii John Thomas Howell 1960-7-22 35877 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD140474  Carex lemmonii John Thomas Howell 1960-7-18 35513 Plumas Lassen Volcanic National Park, Drakesbad. Near Soda Spring. 1676 Comment
  UCD140911  Carex subfusca John Thomas Howell 1960-7-18 35565 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD140912  Carex subfusca John Thomas Howell 1960-7-22 35875 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
  UCD140981  Carex whitneyi John Thomas Howell 20-23 Jun 1977 52407 Plumas On the peninsula of Lake Almanor. 1371 Comment
  UCD141196  Cyperus niger John Thomas Howell 1960-8-20 36275 Plumas Lassen Volcanic National Park. Drakesbad. 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
  UCD141555  Juncus howellii John Thomas Howell 1960-7-18 35512 Plumas Drakesbad. 1676 Comment
  UCD23590  Melica harfordii John Thomas Howell 1967-6-23 42737 Plumas Lewisia Rock' 3.5 miles SW of Belden, Feather River Canyon. 609 Comment
  UCD45906  Quercus durata var. durata John Thomas Howell 1959-9-21 34791 Plumas El. 2500 feet, Plumas County. 762 Comment
  UCD45963  Quercus durata var. durata John Thomas Howell 1959-9-21 34788 Plumas Serpentine Rich Bar, Plumas Co. El. 2500 ft. 762 Comment
  UCD46126  Quercus garryana var. semota John Thomas Howell 1951-6-26 27548 Plumas Feather River Canyon, Plumas Co. 853 Comment
  UCD47416  Quercus vacciniifolia John Thomas Howell 1960-7-17 35500 Plumas Dry rocky wooded slope, Drakesbad, Plumas County. 1676 Comment
  UCD48383  Navarretia divaricata John Thomas Howell 1960-7-18 35571 Plumas Meadow border, Drakesbad, Plumas County. 1676 Comment
  UCD50595  Achnatherum lemmonii John Thomas Howell 1960-7-22 35887 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD50604  Achnatherum lemmonii John Thomas Howell 1962-6-17 37710 Plumas Portola, Plumas County. 1463 Comment
  UCD51873  Agrostis capillaris John Thomas Howell 1975-6-15 51129 Plumas Quincy. 1036 Comment
  UCD51941  Arctostaphylos truei John Thomas Howell 1976-4-2 51570 Plumas Injun Jim Campground, North Fork Feather River, Plumas County. 609 Comment
  UCD51942  Arctostaphylos truei John Thomas Howell 1976-4-2 51571 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
  UCD52435  Agrostis exarata John Thomas Howell 1926-7-26 2126 Plumas near Prattville. 1371 Comment
  UCD52485  Agrostis exarata John Thomas Howell; Gordon H. True 1973-7-31 50087 Plumas Canadian Zone Forest, summit ridge of Thompson Peak, Diamond Range. 2194 Comment
  UCD52644  Arctostaphylos viscida John Thomas Howell 1959-9-21 34776 Plumas North Fork Feather River near Belden 701 Comment
  UCD52763  Podagrostis humilis John Thomas Howell 1960-7-23 35955 Plumas near Soda Springs, Drakesbad. 1676 Comment
  UCD52983  Agrostis idahoensis John Thomas Howell 1960-7-23 25956 Plumas Drakesland, near Soda Spring. 1676 Comment
  UCD53296  Agrostis scabra John Thomas Howell 1926-7-26 2127 Plumas near Prattville. 1371 Comment
  UCD53310  Arctostaphylos patula John Thomas Howell 1976-4-2 51579 Plumas Spring Garden. 1219 Comment
  UCD53311  Arctostaphylos patula John Thomas Howell 1976-4-2 51580 Plumas Spring Garden. 1219 Comment
  UCD53456  Agrostis stolonifera John Thomas Howell 1960-7-18 35521 Plumas Drakesbad. 1676 Comment
  UCD55868  Alopecurus aequalis John Thomas Howell 1961-9-25 36952 Plumas Feather River bed, Portola. 1478 Comment
  UCD55898  Alopecurus geniculatus John Thomas Howell 1960-7-22 35882 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD55909  Alopecurus geniculatus John Thomas Howell; Gordon H. True 1967-7-9 43264 Plumas Sierra Nevada, meadow at Quincy . 1036 Comment
  UCD56583  Quercus kelloggii John Thomas Howell 1976-7-14 51823 Plumas Sierra Nevada. American Valley near Quincy on road to Quincy Junction. 1036 Comment
  UCD56778  Beckmannia syzigachne John Thomas Howell 1962-6-18 37747 Plumas Plants of the Sierra Nevada. Sierra Valley near Beckwourth. 1487 Comment
  UCD58476  Bromus commutatus John Thomas Howell 1967-6-23 42677 Plumas Plumas Canyon. Butterfly Creek. 975 Comment
  UCD58848  Bromus inermis John Thomas Howell; Gordon H. True 1967-7-11 43379 Plumas Sierra Nevada. Meadow at Quincy. 1036 Comment
  UCD58849  Bromus inermis John Thomas Howell; Gordon H. True 1967-7-11 43377 Plumas Sierra Nevada. Meadow at Quincy. 1036 Comment
  UCD59113  Bromus carinatus var. marginatus John Thomas Howell 1960-7-23 35932 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD59261  Bromus orcuttianus John Thomas Howell 1926-7-20 2088 Plumas Near Prattville. 1463 Comment
  UCD59269  Bromus orcuttianus John Thomas Howell 1960-8-20 36274 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD61648  Elymus elymoides subsp. brevifolius John Thomas Howell 1955-7-19 30780 -A Plumas Beckwourth. 1493 Comment
  UCD61817  Elymus glaucus John Thomas Howell; Gordon True, Walter Knight, Irja Knight 1967-7-10 2213 Plumas Mouth of Butterfly Creek. 883 Comment
  UCD62308  Elymus glaucus John Thomas Howell 1959-9-26 35054 Plumas Near Virgilia. 841 Comment
  UCD62750  Elymus X hansenii John Thomas Howell 20-23 Jun 1977 52415 Plumas On the peninsula of Lake Almanor. 1371 Comment
  UCD62856  Deschampsia danthonioides John Thomas Howell 1960-7-19 35619 Plumas Drakesbad. 1676 Comment
  UCD63520  Deschampsia elongata John Thomas Howell 1960-7-19 35621 Plumas Drakesbad. 1676 Comment
  UCD66090  Festuca idahoensis John Thomas Howell 1960-7-22 35885 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD66140  Festuca occidentalis John Thomas Howell 1962-6-17 37681 Plumas Butterfly Valley. 1036 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
  UCD87286  Melica fugax John Thomas Howell 1960-7-18 35603 Plumas Lassen Volcanic National Park. Drakesbad. 1676 Comment
  UCD88510  Phalaris arundinacea John Thomas Howell 1951-8-21 28236 Plumas Mohawk. 1371 Comment
  UCD88511  Phalaris arundinacea John Thomas Howell 1973-7-9 49713 Plumas Crescent Mills. 1066 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
  UCD89518  Panicum capillare John Thomas Howell 1959-9-21 34747 Plumas N. Fk. Feather River near Belden. Comment
  UCD89521  Panicum capillare John Thomas Howell 1959-9-22 34868 Plumas Lassen Volcanic National Park. Drakesbad. 1737 Comment
  UCD89595  Panicum dichotomiflorum John Thomas Howell 1959-9-26 35065 Plumas Near Virgilia. 838 Comment
  UCD91537  Puccinellia distans John Thomas Howell 1955-7-19 30803 Plumas Vinton. 1505 Comment
  UCD91654  Poa secunda subsp. secunda John Thomas Howell 1975-6-16 51151 Plumas Sierra Nevada. 2 miles NW of Spring Garden. 1173 Comment
  UCD92556  Secale cereale John Thomas Howell 1955-7-19 30778 Plumas Beckwourth. 1493 Comment
  UCD92853  Setaria viridis John Thomas Howell 1959-9-20 34719 Plumas Tobin. 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
  UCD94546  Vulpia microstachys var. pauciflora John Thomas Howell 1961-6-21 36665 Plumas Greenville. 1097 Comment
  UCD94784  Vulpia myuros John Thomas Howell 1962-6-17 37684 Plumas Butterfly Valley. 1036 Comment
  UCD97664  Atriplex rosea John Thomas Howell 1959-9-24 34969 Plumas Beckwourth. 1487 Comment
  UCD99322  Stellaria longipes subsp. longipes John Thomas Howell 1960-7-18 35516 Plumas Drakesbad. 1676 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
  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
  UCR244689  Hackelia J. T. Howell, T. C. Fuller, G. D. Barbe 1981-6-24 54279 Plumas Sierra Nevada Mtns., C. 1.3 miles southeast [presumably on Mt. Hough Crystal Lake Rd.] of Mt. Hough on road to Quincy 2043 Comment
  UCR67649  Epilobium densiflorum J. T. Howell 1961-9-24 36904 Plumas Sierra Nevada Mtns., Feather river bed SW of Beckworth. 1488 Comment
  UCR74673  Nepeta cataria J. T. Howell 1959-9-24 34934 Plumas Sierra Nevada Mtns, Butterfly Creek near mouth. Comment
  UCR88008  Gilia leptalea subsp. leptalea J. T. Howell 1973-7-10 49729 Plumas Near Greenville 1768 Comment
  UCR88888  Spergularia atrosperma J. T. Howell 1962-6-19 37866 Plumas Sierra Nevada Mtns., 5.8 mi east of Beckworth. 1494 Comment
  UCR88934  Cerastium arvense J. T. Howell 1962-6-16 37632 Plumas Sierra Nevada Mtns, 'Lewisia Rock,' 3.5 mi. SW of Belden, Feather River Canyon. 640 Comment
  UCR89346  Pyrrocoma lucida J. T. Howell 1961-9-25 36957 Plumas Sierra Nevada Mtns., Portola 1479 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-BC111010  Scirpus microcarpus John Thomas Howell 1960-7-19 35645 Plumas Wet slope near hot springs, Drakesbad. 1828 Comment
  CAS-BOT-BC113416  Eleocharis bella John Thomas Howell 1960-7-21 35812 Plumas Moist open slope near Terminal Geyser. 1828 Comment
  CAS-BOT-BC113510  Eleocharis bella John Thomas Howell 1926-7-24 2112 Plumas Lake Almanor, near Prattville 1371 Comment
  CAS-BOT-BC114055  Cyperus squarrosus John Thomas Howell 1960-7-21 35813 Plumas Moist open slope near Terminal Geyser. 1828 Comment
  CAS-BOT-BC114128  Cyperus squarrosus John Thomas Howell 1961-9-24 36913 Plumas Feather River bed sur. of Beckworth. 1487 Comment
  CAS-BOT-BC114720  Cyperus difformis John Thomas Howell 1959-9-26 35064 Plumas Near Virgilia. 838 Comment
  CAS-BOT-BC114992  Carex subfusca John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54313 Plumas Near Englemine on Diamond Mt. Road NE of Taylorsville. 1219 Comment
  CAS-BOT-BC115999  Carex subfusca John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54237 Plumas About 4 mi SE of Mt. Hough on road to Quincy. 1645 Comment
  CAS-BOT-BC118128  Carex rossii John Thomas Howell 1963-7-9 39656 Plumas Near foot of Echo Summit grade, 1 mi SW of Meyers. 2011 Comment
  CAS-BOT-BC118133  Carex rossii John Thomas Howell; R. C. Barneby 1954-5-14 29565 Plumas Damp meadow near Almanor PO. 1280 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-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-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-BC124797  Salix lemmonii John Thomas Howell 1960-7-20 35725 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC125307  Salix lasiandra var. lasiandra John Thomas Howell 1960-7-21 35839 Plumas Flats nw. of Willow Lake 1676 Comment
  CAS-BOT-BC127495  Agrostis capillaris John Thomas Howell 1975-6-15 51129 Plumas Sierra Nevada. Waste Ground, Quincy. 1036 Comment
  CAS-BOT-BC12990  Lepidium virginicum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54230 Plumas Sierra Nevada. About 4 miles southeast of Mount Hough on the road to Quincy. 1645 Comment
  CAS-BOT-BC131951  Allium John Thomas Howell 1976-4-2 51576 Plumas 2 miles northwest of Spring Garden 1173 Comment
  CAS-BOT-BC13244  Agoseris monticola J. T. Howell 1960-7-21 35802 Plumas Lassen Volcanic National park, Drakesbad 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-BC138707  Agrostis scabra John Thomas Howell 1960-7-20 35774 Plumas Lassen Volcanic National Park. Boiling Springs Lake. 1798 Comment
  CAS-BOT-BC139249  Agrostis idahoensis John Thomas Howell 1960-7-23 35956 Plumas Lassen Volcanic National Park. Drakesbad. Near Soda Spring. 1828 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-BC14106  Boechera pauciflora John Thomas Howell 1967-6-23 42736 Plumas Sierra Nevada. Lewisia Rock 3.5 miles southwest of Belden, Feather River Canyon. 609 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-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-BC159309  Drymocallis lactea var. lactea John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54157 Plumas Meadow and forest borders, 3.25 miles west of Round Valley Reservoir dam - Sierra Nevada 1633 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-BC162146  Bromus orcuttianus John Thomas Howell 1960-7-17 35494 Plumas Lassen Volcanic National Park. Drakesbad. 1828 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-BC162584  Clarkia John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54213 Plumas About 5 miles southeast of Mt. Hough on the road to Quincy - Sierra Nevada 1584 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-BC165921  Epilobium John Thomas Howell 1959-9-21 34742 Plumas Belden 701 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-BC171677  Aralia californica John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54290 Plumas Moist seepage are on China Grade, 1.4 miles south of Taylorville, Sierra Nevada 1402 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-BC175671  Viola lobata John Thomas Howell 1977-6-21 s.n. Plumas Between Seneca and Butt Valley Reservoir 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-BC17841  Carex amplifolia John Thomas Howell 1951-6-28 27734 Plumas Between Eureka Lake and Johnsville. 1828 Comment
  CAS-BOT-BC17933  Carex angustata John Thomas Howell 1951-6-27 27601 Plumas Sierra Nevada. McRae Meadow. 1981 Comment
  CAS-BOT-BC17934  Carex angustata John Thomas Howell 1951-6-27 27604 Plumas Sierra Nevada. McRae Meadow. 1981 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-BC179652  Delphinium John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54392 Plumas 0.3 miles southwest of Bucks Summit on road to Bucks Lake 1645 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-BC182429  Hackelia John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54113 Plumas 10.6 miles northeast of La Porte on road to Quincy 1889 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-BC18353  Carex John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54184 Plumas Sierra Nevada. Long Valley at road to Maxwell Mine. 1633 Comment
  CAS-BOT-BC18354  Carex John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54339 Plumas Sierra Nevada. 2.8 miles north-northeast of Englemine on Diamond Mountain Road. 1341 Comment
  CAS-BOT-BC18358  Carex John Thomas Howell 1951-6-26 27535 Plumas Sierra Nevada. Feather River Canyon. 853 Comment
  CAS-BOT-BC18359  Carex John Thomas Howell 1951-6-26 27535 Plumas Sierra Nevada. Feather River Canyon. 853 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-BC18365  Carex John Thomas Howell; Gordon H. True 1973-7-31 50084 Plumas Sierra Nevada. Diamond Range. Summit ridge of Thompson Peak. 2194 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-BC19622  Carex brainerdii John Thomas Howell; Gordon H. True 1967-5-7 42186 Plumas Sierra Nevada. Injun Jim Campground at confluence of Granite Creek and North Fork of Feather River. 609 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-BC199691  Trisetum canescens John Thomas Howell 1960-7-17 35492 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC20080  Carex echinata John Thomas Howell 1959-9-23 s.n. Plumas 3 miles from Juniper Lake on road to Chester. 1889 Comment
  CAS-BOT-BC200951  Lotus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54359 Plumas Near Indian Creek about 0.75 miles northwest of northwest arm of Antelope Reservoir 1584 Comment
  CAS-BOT-BC200954  Lotus John Thomas Howell; H. Keith Wagnon 1980-5-26 53593 A Plumas North Fork of Feather River between the mouth of East Branch and Caribou 792 Comment
  CAS-BOT-BC204403  Elymus trachycaulus subsp. trachycaulus John Thomas Howell 1960-7-18 35547 Plumas Lassen Volcanic National Park. Drakesbad 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-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-BC213138  Sidalcea John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54111 Plumas 10.6 miles northeast of La Porte on road to Quincy, Sierra Nevada 1889 Comment
  CAS-BOT-BC219373  Nemophila John Thomas Howell 1976-4-2 51573 Plumas 2 miles northwest of Spring Garden 1173 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-BC220491  Monardella sheltonii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54192 Plumas 1.9 miles north of Grays Flat on road to Long Valley 1249 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-BC227724  Elymus elymoides John Thomas Howell 1960-7-17 35495 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC228017  Plagiobothrys John Thomas Howell 1926-7-24 2113 Plumas Lake Almanor near Prattville 1371 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-BC230963  Plagiobothrys hispidulus John Thomas Howell 1962-6-18 37819 Plumas Sierra Valley, 5 miles S of Beckwourth 1493 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-BC231507  Nicotiana John Thomas Howell 1977-8-11 52692 Plumas At north end of Frenchmans Reservoir 1706 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-BC247393  Poa pratensis John Thomas Howell 1960-7-18 35510 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC249008  Castilleja John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54220 Plumas About 5 miles southeast of Mt. Hough on the road to Quincy 1584 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-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-BC254613  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-BC264129  Eriogonum vimineum John Thomas Howell 1977-8-11 52694 Plumas North end of Frenchmans Reservoir, Sierra Nevada 1706 Comment
  CAS-BOT-BC264131  Eriogonum vimineum John Thomas Howell 1955-7-19 30732 Plumas Portola, west of town, Sierra Nevada 1478 Comment
  CAS-BOT-BC264178  Melica subulata John Thomas Howell 1960-7-20 35713 Plumas Drakesbad, Lassen Volcanic National Park 1828 Comment
  CAS-BOT-BC267004  Muhlenbergia filiformis John Thomas Howell 1960-7-21 35808 Plumas Lassen Volcanic National Park. Near Terminal Geyser 1828 Comment
  CAS-BOT-BC267057  Alisma John Thomas Howell 1959-9-26 35061 Plumas Near Virgilia 838 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-BC267491  Eriogonum umbellatum John Thomas Howell 1961-9-23 36863 Plumas Indian Valley (E. side of valley) 1082 Comment
  CAS-BOT-BC269720  Eriogonum nudum var. oblongifolium John Thomas Howell 1959-9-24 34942 Plumas Spanish Creek at mouth of Butterfly Creek 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-BC278464  Festuca idahoensis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54210 Plumas 2.5 miles northeast of Quincy Junction on road to Mt. Hough 1280 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-BC279027  Festuca rubra John Thomas Howell 1960-7-23 35933 Plumas Lassen Volcanic National Park. Drakesbad 1828 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-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-BC285539  Cirsium occidentale var. candidissimum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54205 Plumas 2.5 miles northeast of Quincy Junction on road to Mt. Hough 1280 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-BC286359  Cirsium scariosum John Thomas Howell 1951-6-29 27736 Plumas Near Spring Garden 1219 Comment
  CAS-BOT-BC286361  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-BC286667  Ericameria bloomeri John Thomas Howell 1960-8-20 36282 Plumas Near Lassen Volcanic National Park. Kelly Camp, near Drakesbad 1615 Comment
  CAS-BOT-BC287206  Cota tinctoria John Thomas Howell 1960-7-24 35995 Plumas Chester 1371 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-BC295227  Erigeron inornatus John Thomas Howell 1960-7-19 35673 Plumas Lassen Volcanic National Park. Drakesbad 1828 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-BC300127  Erigeron pumilus var. intermedius John Thomas Howell 1975-7-22 s.n. Plumas Near Beckwourth, nw. part of Sierra Valley 1493 Comment
  CAS-BOT-BC300400  Erigeron eatonii var. plantagineus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54347 Plumas 4.8 miles northwest of Antelope Reservoir 1661 Comment
  CAS-BOT-BC300402  Erigeron eatonii var. plantagineus John Thomas Howell; H. Keith Wagnon 1980-5-27 53620 Plumas 1 mile west of Almanor 1386 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-BC304683  Grindelia squarrosa John Thomas Howell 1974-9-20 50907 Plumas Chilcoot 1554 Comment
  CAS-BOT-BC305359  Helianthus annuus John Thomas Howell 1961-9-23 36818 Plumas Greenville 1088 Comment
  CAS-BOT-BC307382  Gnaphalium palustre John Thomas Howell 1977-8-11 52714 Plumas Frenchmans Reservoir on est side near Big Cove, Sierra Nevada 1706 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-BC310542  Eurybia integrifolia John Thomas Howell 1960-7-21 35794 Plumas Lassen Volcanic National Park. Drakesbad 1828 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-BC311018  Heterotheca oregona John Thomas Howell 1974-9-19 50886 Plumas Near Rogers Flat on edge of Feather River Highway 609 Comment
  CAS-BOT-BC311019  Heterotheca oregona John Thomas Howell 1959-9-26 35077 Plumas 5 miles northeast of Storrie 609 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-BC312320  Hieracium John Thomas Howell 1961-6-21 36642 Plumas Greenville, Sierra Nevada 1097 Comment
  CAS-BOT-BC313721  Erythranthe percaulis John Thomas Howell; H. Keith Wagnon 1980-5-28 53705 Plumas Serpentine Canyon about 3 miles E of Rich Bar, East Branch North Fork Feather RIver 853 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-BC314802  Helianthella californica var. nevadensis John Thomas Howell; Walter Knight; Irja Knight 1966-7-28 1651 Plumas Adjacent to Sweetwater Meadow, Butterfly Botanical Area and Vicinity 1127 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-BC32074  Carex multicaulis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54223 Plumas Ca 5 miles SE of Mt. Hough on the road to Quincy. 1584 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-BC340599  Lactuca serriola John Thomas Howell 1955-7-19 30741 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC340601  Lactuca serriola John Thomas Howell 1961-9-22 36813 Plumas Greenville 1088 Comment
  CAS-BOT-BC341571  Lagophylla ramosissima John Thomas Howell 1961-9-25 36965 Plumas Vinton 1506 Comment
  CAS-BOT-BC341574  Lagophylla ramosissima John Thomas Howell 1951-6-29 27738 Plumas Near Spring Garden 1219 Comment
  CAS-BOT-BC342087  Leucanthemum vulgare John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1968-6-11 2356 Plumas Butterfly Botanical Area. Confluence of Spanish Creek & Butterfly Creek Comment
  CAS-BOT-BC342869  Madia glomerata John Thomas Howell 1959-9-24 34965 Plumas Sierra Valley near Beckworth 1478 Comment
  CAS-BOT-BC343248  Madia gracilis John Thomas Howell 1951-6-29 27744 Plumas Near Spring Garden 1219 Comment
  CAS-BOT-BC343251  Madia gracilis John Thomas Howell 1960-7-20 35763 Plumas Lassen Volcanic National Park. Boiling Springs Lake 1798 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-BC343269  Madia gracilis John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-7-10 2104 Plumas Butterfly Botanical Area and Vicinity. Between Butterfly Valley and Darlingtonia bogs 1066 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-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-BC348172  Matricaria discoidea John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1967-6-12 1979 Plumas Butterfly Botanical Area and Vicinity. In valley proper near barn 1036 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-BC355574  Oreostemma alpigenum var. andersonii John Thomas Howell 1960-7-23 35964 Plumas Lassen Volcanic National Park. Dream Lake, Drakesbad 1828 Comment
  CAS-BOT-BC35579  Scirpus congdonii John Thomas Howell 1959-9-23 s.n. Plumas 3 miles 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-BC357347  Pseudognaphalium microcephalum John Thomas Howell 1959-9-22 34832 Plumas Wolf Creek 1371 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-BC361483  Pseudognaphalium stramineum John Thomas Howell 1959-9-21 34794 Plumas Virgilia 841 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-BC361679  Pseudognaphalium thermale John Thomas Howell 1974-9-20 50892 Plumas 7 miles from Quincy on road to Blairsden 1097 Comment
  CAS-BOT-BC361686  Psilocarphus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54207 Plumas 2.5 miles northeast of Quincy Junction on road to Mt. Hough 1280 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-BC362284  Pyrrocoma lanceolata var. lanceolata John Thomas Howell 1975-7-22 51379 A Plumas Sierra Valley near Beckwourth 1493 Comment
  CAS-BOT-BC362285  Pyrrocoma lanceolata var. lanceolata John Thomas Howell; Gordon H. True 1967-7-11 43297 Plumas 2.5 miles from Quincy Junction on road to Mt. Hough 1249 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-BC363066  Rigiopappus leptocladus John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1967-6-12 1988 Plumas Butterfly Botanical Area and Vicinity. Valley proper, near barn 1036 Comment
  CAS-BOT-BC363726  Senecio hydrophilus John Thomas Howell 1959-9-24 34951 Plumas Spanish Valley near Quincy 1051 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-BC37240  Cardamine breweri John Thomas Howell 1960-7-21 35855 Plumas Lassen Volcanic National Park. Northwest of Willow Lake. 1676 Comment
  CAS-BOT-BC374401  Sonchus asper John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2369 Plumas Canyon of Butterfly Creek between Spanish Creek and Butterfly Valley Comment
  CAS-BOT-BC374402  Sonchus asper John Thomas Howell 1961-6-21 36684 Plumas Greenville 1097 Comment
  CAS-BOT-BC374666  Sonchus oleraceus John Thomas Howell 1951-6-29 27755 Plumas Feather River Canyon 548 Comment
  CAS-BOT-BC375617  Stephanomeria lactucina John Thomas Howell 1951-6-27 27561 Plumas Johnsville 1584 Comment
  CAS-BOT-BC375632  Stephanomeria lactucina John Thomas Howell 1960-7-19 35681 Plumas Lassen Volcanic National Park. Drakesbad 1828 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-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-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-BC377047  Tragopogon John Thomas Howell 1955-7-20 30838 Plumas Mohawk 1371 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-BC377090  Tragopogon dubius John Thomas Howell 1951-6-29 27737 Plumas Near Spring Garden 1219 Comment
  CAS-BOT-BC377092  Tragopogon dubius John Thomas Howell 1961-6-21 36698 Plumas Greenville 1097 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-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-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-BC379216  Ranunculus aquatilis John Thomas Howell 1962-6-19 37860 Plumas 5.5 mi E of Beckwourth 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-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-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-BC383749  Xanthium strumarium John Thomas Howell 1959-9-21 34751 Plumas Sand bars of N. Fk. of Feather River near Belden 701 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-BC384934  Cerastium arvense John Thomas Howell 1962-6-16 37632 Plumas Lewisia Rock, 3.5 miles southwest of Belden, Feather River Canyon 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-BC388205  Cerastium fontanum subsp. vulgare John Thomas Howell 1951-6-28 27673 Plumas Jamison Creek 1584 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-BC390071  Spergularia atrosperma John Thomas Howell 1951-8-20 28234 A Plumas 3 miles east of Beckwourth, Sierra Valley 1524 Comment
  CAS-BOT-BC390682  Spergularia rubra John Thomas Howell 1960-7-19 35615 Plumas Lassen Volcanic National Park. Near buildings, Drakesbad 1828 Comment
  CAS-BOT-BC390685  Spergularia rubra John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1967-6-12 1982 Plumas Butterfly Botanical Area and Vicinity. Near barn in valley proper 1036 Comment
  CAS-BOT-BC391057  Stellaria graminea John Thomas Howell 1975-6-15 51127 Plumas Quincy 1036 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-BC391474  Aconitum columbianum subsp. columbianum John Thomas Howell; Gordon H. True; Wayne Dakan 1974-7-30 50633 Plumas Headwaters of Indian Creek south of Diamond Mountain 2103 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-BC392418  Thalictrum fendleri John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 s.n. Plumas About 4 miles southeast of Mt. Hough on the road to Quincy 1645 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-BC40002  Arctostaphylos nevadensis John Thomas Howell 1959-9-23 34876 Plumas 3 mi. s. of Lassen Park boundary on road to Chester 1828 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-BC403351  Eschscholzia californica John Thomas Howell 1961-9-23 36881 Plumas Cooks Creek Road near Engelmine 1082 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-BC404199  Urtica dioica subsp. holosericea John Thomas Howell 1960-7-20 35717 Plumas Lassen Volcanic National Park. Near corral, Drakesbad 1828 Comment
  CAS-BOT-BC407730  Arceuthobium abietinum John Thomas Howell 1960-7-20 35784 Plumas between Boiling Springs Lake and Ternimal Geyser 1859 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-BC409919  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-BC413890  Fallopia convolvulus John Thomas Howell 1951-8-19 28195 Plumas Greenville 1097 Comment
  CAS-BOT-BC413892  Fallopia convolvulus John Thomas Howell 1967-6-23 42693 Plumas Butterfly Valley 1066 Comment
  CAS-BOT-BC41395  Draba verna John Thomas Howell 1963-6-4 39402 Plumas Sierra Valley south of Beckwourth. 1463 Comment
  CAS-BOT-BC41396  Draba verna John Thomas Howell 1978-4-19 52855 Plumas Sierra Nevada. Eastern part of Quincy. 1036 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-BC414047  Polygonum aviculare subsp. aviculare John Thomas Howell 1955-7-19 30761 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC414221  Polygonum aviculare subsp. depressum John Thomas Howell 1959-9-22 34863 Plumas Drakesbad 1737 Comment
  CAS-BOT-BC414311  Polygonum aviculare subsp. neglectum John Thomas Howell; Gordon H. True 1967-7-12 43382 Plumas Twain 883 Comment
  CAS-BOT-BC414552  Polygonum douglasii John Thomas Howell 1974-9-20 50889 Plumas 7 miles from Quincy on road to Blairsden 1097 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-BC419041  Persicaria lapathifolia John Thomas Howell 1959-9-26 35072 Plumas Feather River Canyon. Ca. 1.5 mi. w. of Belden 682 Comment
  CAS-BOT-BC419237  Persicaria maculosa John Thomas Howell 1959-9-24 34929 Plumas Junction of Indian and Spanish Creeks 914 Comment
  CAS-BOT-BC419239  Persicaria maculosa John Thomas Howell 1951-8-19 28194 Plumas Greenville 1097 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-BC420057  Polygonum polygaloides subsp. kelloggii John Thomas Howell 1962-6-19 37865 A Plumas Sierra Valley, 5.8 miles e. of Beckwourth 1493 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-BC426316  Chenopodium incognitum John Thomas Howell 1955-7-19 30768 Plumas Sierra Nevada: Bechwourth 1493 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-BC433197  Rubus flagellaris John Thomas Howell 1961-9-23 36839 Plumas Indian Valley 1082 Comment
  CAS-BOT-BC433317  Rumex crispus John Thomas Howell 1960-7-18 35528 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC433760  Rumex pulcher John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1968-6-11 2358 Plumas Butterfly Botanical Area. Confluence of Spanish Creek & Butterfly Creek. Comment
  CAS-BOT-BC434311  Rumex triangulivalvis John Thomas Howell 1977-8-11 52711 Plumas Bottom of Frenchmans Reservoir on east side near Big Cove. 1706 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-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-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-BC438487  Calandrinia ciliata John Thomas Howell; Walter Knight; Irja Knight; Gordon True 1967-5-7 1840 Plumas West edge of Butterfly Valley proper. 1066 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-BC439879  Claytonia perfoliata John Thomas Howell 1978-4-19 52858 Plumas Eastern part of Quincy. 1036 Comment
  CAS-BOT-BC441255  Luzula macrantha John Thomas Howell; Gordon True 1968-6-10 44560 Plumas Sierra Nevada: Quincy, hill just N of Gansner Park 1036 Comment
  CAS-BOT-BC443639  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1978-4-19 s.n. Plumas Dyson Lane, southwest of Vinton, Sierra Valley. 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-BC445091  Montia linearis John Thomas Howell 1978-4-19 52856 Plumas Eastern part of Quincy 1036 Comment
  CAS-BOT-BC445093  Montia linearis John Thomas Howell; Gordon H. True 1967-6-11 42576 Plumas Meadow at Quincy 1036 Comment
  CAS-BOT-BC445536  Damasonium californicum John Thomas Howell 1926-7-30 2161 Plumas Near Prattville 1371 Comment
  CAS-BOT-BC445679  Sagittaria cuneata John Thomas Howell 1973-7-9 49706 Plumas Crescent Mills. 1066 Comment
  CAS-BOT-BC445680  Sagittaria cuneata John Thomas Howell 1926-7-24 2109 Plumas Lake Almanor near Prattville 1371 Comment
  CAS-BOT-BC447456  Tellima grandiflora John Thomas Howell 1962-6-16 37639 Plumas Lewisia Rock, Feather River North Fork. 640 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-BC451430  Chimaphila menziesii John Thomas Howell 1977-6-21 s.n. Plumas Sierra Nevade: between Seneca and Butt Valley Reservoir Comment
  CAS-BOT-BC453560  Pterospora andromedea John Thomas Howell 1960-7-21 35836 A Plumas Lassen Volcanic National Park: NW of Willow Lake 1706 Comment
  CAS-BOT-BC453792  Potamogeton natans John Thomas Howell 1961-9-23 36860 Plumas Indian Valley 1082 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-BC459424  Allium acuminatum John Thomas Howell; Gordon H. True 1967-7-11 43295 Plumas 2.5 miles from Quincy Junction on road to Mt. Hough, Sierra Nevada 1249 Comment
  CAS-BOT-BC459557  Geum macrophyllum John Thomas Howell 1967-6-23 42683 Plumas Canyon of Butterfly Creek; Sierra Nevada 1036 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-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-BC466218  Sarcodes sanguinea John Thomas Howell 1960-7-21 35824 Plumas Lassen Volcanic National Park, near Terminal Geyser 1798 Comment
  CAS-BOT-BC466617  Allium campanulatum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1969-6-24 2432 Plumas Vicinity of mouth of Butterfly Creek 883 Comment
  CAS-BOT-BC471264  Cardamine cordifolia John Thomas Howell; Gordon H. True; Wayne Dakan 1974-7-30 50635 Plumas Sierra Nevada. Headwaters of Indian Creek SE of Diamond Mt. 2164 Comment
  CAS-BOT-BC472959  Allium lemmonii John Thomas Howell 1962-6-18 37819 A Plumas Sierra Valley, 5 miles S of Beckwourth on road to Sierraville; Sierra Nevada 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-BC476721  Allium validum John Thomas Howell; Gordon True; Walter Knight; Irja Knight 1968-6-11 2382 Plumas Butterfly Valley Comment
  CAS-BOT-BC478471  Boisduvalia John Thomas Howell 1961-9-25 36946 Plumas Feather River bed, Portola 1478 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-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-BC483483  Calochortus minimus John Thomas Howell 1960-7-22 35896 Plumas Devil's Kitchen to Drakesbad, Lassen Volcanic National Park 1828 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-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-BC491833  Calochortus leichtlinii John Thomas Howell 1960-7-19 35687 Plumas Drakesbad 1828 Comment
  CAS-BOT-BC491834  Calochortus leichtlinii John Thomas Howell 1962-6-18 37768 Plumas Sirra Valley near Beckwourth 1487 Comment
  CAS-BOT-BC491836  Calochortus leichtlinii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-24 54217 Plumas About 5 miles southeast of Mt. Hough on the road to Quincy 1584 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-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-BC505243  Erythronium grandiflorum John Thomas Howell 1951-6-28 27684 Plumas Eureka Park 2133 Comment
  CAS-BOT-BC505274  Fritillaria atropurpurea John Thomas Howell 1959-9-23 34879 Plumas Canadian Zone Forest, Lassen Park boundary on Juniper lake Road 1981 Comment
  CAS-BOT-BC506202  Fritillaria micrantha John Thomas Howell 1951-6-28 27655 Plumas Johnsville 1584 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-BC508334  Hastingsia alba John Thomas Howell 1976-7-15 51873 Plumas Snake Lake, about 4 miles northwest of Quincy, Sierra Nevada 1219 Comment
  CAS-BOT-BC508335  Hastingsia alba John Thomas Howell 1962-6-16 37646 Plumas Feather River North Fork on road to Caribou, Sierra Nevada 731 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-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-BC512874  Maianthemum stellatum John Thomas Howell 1960-7-21 35845 Plumas Near Willow Lake 1676 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-BC519391  Triantha occidentalis subsp. occidentalis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54385 Plumas Sierra Nevada, 0.25 miles east of Bucks Summit on road to Quincy 1670 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-BC522056  Triteleia ixioides subsp. ixioides John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54100 Plumas 10.6 miles northeast of La Porte on road to Quincy, Sierra Nevada 1889 Comment
  CAS-BOT-BC527112  Zigadenus John Thomas Howell 1962-6-18 37764 Plumas Sierra Valley near Beckwourth 1487 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-BC527381  Triteleia montana John Thomas Howell 1960-7-22 35904 Plumas Lassen Volcanic National Park, Devils Kitchen to Drakesbad 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-BC528896  Veratrum californicum John Thomas Howell 1960-7-18 35505 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-BC534973  Drymocallis glandulosa var. reflexa John Thomas Howell; Gordon H. True 1969-6-23 45832 Plumas Sierra Nevada, Middle Fork of Feather River at Nelson Point 1249 Comment
  CAS-BOT-BC536836  Viola glabella John Thomas Howell 1967-6-23 42682 Plumas Sierra Nevada: Canyon of Butterfly Creek 1036 Comment
  CAS-BOT-BC536845  Viola glabella John Thomas Howell 1960-7-21 35843 Plumas Lassen Volcanic National Park: NW of Willow Lake 1676 Comment
  CAS-BOT-BC537103  Viola lobata John Thomas Howell 1961-6-21 36608 Plumas Sierra Nevada: Greenville 1097 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-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-BC55286  Hesperis matronalis John Thomas Howell; Gordon H. True 1967-6-11 42568 A Plumas Sierra Nevada. Meadow at Quincy. 1036 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-BC57398  Equisetum laevigatum John Thomas Howell 1959-9-21 34817 Plumas Indian Creek 914 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-BC57769  Isoetes John Thomas Howell; H. Keith Wagnon 1980-5-27 53611 Plumas 1 mi. w. of Almanor. 1386 Comment
  CAS-BOT-BC58024  Equisetum John Thomas Howell 1959-9-25 35004 A Plumas 2 mi. e. of Portola. 1484 Comment
  CAS-BOT-BC58702  Antennaria geyeri John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-25 54356 Plumas Near Indian Creek about 0.75 miles northwest of the northwest arm of Antelope Reservoir 1584 Comment
  CAS-BOT-BC60090  Lepidium virginicum var. menziesii John Thomas Howell 1951-6-26 27529 Plumas Sierra Nevada. Tobin. 609 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-BC66090  Athyrium filix-femina var. cyclosorum John Thomas Howell 1960-7-21 35796 Plumas Drakesbad 1828 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-BC69583  Aspidotis densa John Thomas Howell 1951-7-19 27969 Plumas Monarch Lake Trail. 2590 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-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-BC74013  Turritis glabra John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-23 54186 Plumas Sierra Nevada. Above Dark Ravine Creek. 1524 Comment
  CAS-BOT-BC74313  Raphanus sativus John Thomas Howell 1961-9-24 36925 Plumas Sierra Nevada. Beckwourth. 1487 Comment
  CAS-BOT-BC74629  Rorippa curvisiliqua John Thomas Howell 1977-8-11 52709 Plumas Sierra Nevada. Bottom of Frenchman's Reservoir on east side near Big Cove. 1706 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-BC74965  Sinapis arvensis John Thomas Howell 1951-8-19 28190 Plumas Sierra Nevada. Greenville. 1097 Comment
  CAS-BOT-BC75116  Sisymbrium altissimum John Thomas Howell 1959-9-21 34809 Plumas Sierra Nevada. Indian Creek Canyon. 914 Comment
  CAS-BOT-BC76838  Polypodium glycyrrhiza John Thomas Howell; Gordon H. True 1967-5-9 42212 A 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-BC82508  Arnica discoidea John Thomas Howell 1951-6-28 27717 Plumas Eureka Peak 2255 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-BC88838  Lepidium campestre John Thomas Howell 1973-7-9 49702 Plumas Sierra Nevada. Near Indian Falls, Indian Creek. 914 Comment
  CAS-BOT-BC88845  Lepidium campestre John Thomas Howell 1951-6-26 27553 Plumas Sierra Nevada. Crescent Mills. 1066 Comment
  CAS-BOT-BC88847  Lepidium campestre John Thomas Howell 1967-6-23 42689 Plumas Sierra Nevada. Butterfly Valley. 1066 Comment
  CAS-BOT-BC90122  Artemisia biennis John Thomas Howell 1961-9-24 36915 Plumas Feather River bed sw. of Beckwourth 1487 Comment
  CAS-BOT-BC97559  Symphyotrichum ascendens John Thomas Howell 1959-9-24 34950 Plumas Spanish Valley near Quincy 1051 Comment
  CAS-BOT-BC97561  Symphyotrichum ascendens John Thomas Howell 1959-9-25 35020 Plumas Chilcoot 1524 Comment
  CAS-BOT-BC98488  Symphyotrichum spathulatum John Thomas Howell 1960-7-18 35563 Plumas Drakesbad - Lassen Volcanic National Park 1828 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
  CDA2987  Chenopodium album J. T. Howell 1975-7-2 51343 Plumas Sierra Nevada; Quincy. 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
  JEPS28121  Mimulus suksdorfii John Thomas Howell 1962-6-19 37870 Plumas 5.8 mi e Beckwourth; Sierra Nevada 1493 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
  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
  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
  RSA244709  Hesperis matronalis J. T. Howell 1967-7-11 43380 Plumas Meadow at Quincy. 1037 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
  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
  RSA88393  Mimulus guttatus J. T. Howell 1951-6-26 27534 Plumas Feather River Canyon 854 Comment
  RSA88463  Polygonum douglasii J. T. Howell 1951-8-19 28193 Plumas Greenville. 1098 Comment
  RSA88517  Epilobium foliosum J. T. Howell 1951-6-26 27547 Plumas Feather River Canyon 854 Comment
  RSA88585  Chenopodium pumilio J. T. Howell 1951-8-19 28183 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
  RSA94852  Arnica longifolia subsp. myriadenia J. T. Howell 1926-7-30 2157 Plumas Near Prattville on Lake Almonor Comment
  RSA95419  Silene occidentalis J. T. Howell 1951-6-27 27557 Plumas Johnsville; Sierra Nevada 1585 Comment
  RSA95426  Myosotis scorpioides J. T. Howell 1951-6-29 27743 Plumas Near Spring Garden. 1220 Comment
  RSA95431  Phlox diffusa subsp. diffusa J. T. Howell 1951-6-28 27708 Plumas Eureka Peak. 2195 Comment
  RSA95438  Ranunculus occidentalis var. ultramontanus J. T. Howell 1951-6-27 27621 Plumas Jamison Creek 1829 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
  RSA95511  Juncus howellii J. T. Howell 1951-6-27 27580 Plumas McRae Meadow. 1982 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
  RSA95529  Hackelia nervosa J. T. Howell 1951-6-27 27623 Plumas Jamison Creek 1829 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
  RSA97923  Carex fracta J. T. Howell 1951-6-28 27650 Plumas Johnsville 1585 Comment
  RSA97925  Carex integra J. T. Howell 1951-6-27 27591 A Plumas McRae Meadow. 1982 Comment
  SBBG47394  Equisetum X ferrissii J. T. Howell, G. H. True 1967-7-9 43250 Plumas N Fk of Feather River, 3 mi SW of Caribou 853 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
  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
  SEINET10459933  Triodanis perfoliata Howell Howell 27766 Plumas FEATHER RIVER Comment
  SEINET10460755  Porterella carnosula Howell 1963-6-4 Howell 39405 Plumas Marble Hot Springs, Sierra Valley Comment
  SEINET10463000  Campanula prenanthoides Howell 1926-7-31 Howell 2178 Plumas Near Prattville 1463 Comment
  SEINET10463001  Campanula prenanthoides Howell 1959-9-26 Howell 35045 Plumas Near Keddie 1006 Comment
  SEINET10463123  Campanula prenanthoides Howell 1959-9-26 Howell 35045 Plumas NEAR KEDDIE 3300 Comment
  SEINET10488892  Lupinus sellulus John Thomas Howell 1955-7-19 Howell 30811 Plumas Vinton, California. 1509 Comment
  SEINET10554310  Elymus glaucus John Thomas Howell 1961-6-21 Howell 36674 Plumas Greenville. 1097 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
  SEINET10605819  Stipa elmeri John Thomas Howell 1961-6-21 Howell 36700 Plumas Greenville 1097 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
  SEINET10711246  Carex mariposana John Thomas Howell 1981-6-25 Howell 54343 Plumas 2.8 miles north-northeast of Englemine on Diamond Mt. Road. 1341 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
  SEINET11601357 Image available Madia exigua J. T. 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
  SEINET12875581 Image available Eremogone congesta var. suffrutescens John Thomas Howell, T. C. Fuller and G. D. Barbe 1981-1 54357 Plumas Near Indian Creek about 0.75 mi. NW of NW arm of Antelope Reservoir 1585 Comment
  SEINET5323260  Botrychium multifidum J. T. Howell 1963-6-3 39397 Plumas Butterfly Valley. 1036 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
  SEINET6626641  Pentagramma triangularis subsp. semipallida J. T. Howell 1967-6-23 42730 Plumas Sierra Nevada, Lewisia Rock, 3.5 miles sw of Belden, Feather River Cnyon Comment
  SEINET6627108  Thelypteris nevadensis J. T. Howell 1963-6-3 39393 Plumas Butterfly Valley Comment
  SEINET7294038 Image available Poa secunda subsp. juncifolia John Thomas Howell 1955-1 30800 Plumas Vinton 1506 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
  SEINET7297651 Image available Glyceria borealis John Thomas Howell, Gordon H. True 1967-1 43263 Plumas Meadow at Quincy 1036 Comment
  SEINET7485361 Image available Carex lemmonii John Thomas Howell 1960-1 35946 Plumas Drakesbad 1676 Comment
  SEINET7566765 Image available Carex mariposana John Thomas Howell, T. C. Fuller, G. D. Barbe 1981-6-25 54343 b Plumas 2.8 miles north-northeast of Englemine on Diamond Mt. Road. 1341 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
  SEINET8079195 Image available Ericameria nauseosa var. speciosa J. T. Howell 1959-9-25 s.n. Plumas Summit of Beckwourth Pass 1589 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
  SEINET8409831  Erythranthe primuloides John Thomas Howell 1960-7-23 35953 Plumas near soda spring; Drakesbad. 1676 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
  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
  UCD101944  Arceuthobium campylopodum John Thomas Howell 1960-7-20 35784 Plumas Between Boiling Springs Lake and Terminal Geyser. 1859 Comment
  UCD114967  Hesperis matronalis John Thomas Howell; Gordon H. True 1967-6-11 42568 A Plumas Meadow at Quincy. 1036 Comment
  UCD121028  Plagiobothrys tenellus John Thomas Howell; Gordon H. True 1968-6-10 44538 Plumas American Valley at Quincy. 1036 Comment
  UCD128969  Anthemis tinctoria John Thomas Howell 1960-7-24 35995 Plumas Chester. 1371 Comment
  UCD132977  Hemizonia congesta subsp. clevelandii John Thomas Howell 1961-9-23 36825 Plumas Indian Valley; East of Crescent Mills on Stampfli Lane. 1082 Comment
  UCD140445  Carex hoodii John Thomas Howell 1960-6-17 35499 Plumas Lassen Volcanic National Park, Drakesbad. 1676 Comment
  UCD141153  Cyperus strigosus John Thomas Howell 1959-9-26 35080 Plumas Storrie. 548 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
  UCD97851  Atriplex truncata John Thomas Howell 1959-9-25 35017 Plumas 5 miles east of Beckwourth, Sierra Valley. 1493 Comment
  UCD99340  Stellaria borealis subsp. sitchana John Thomas Howell 1960-7-21 35846 Plumas Drakesbad, NW of Willow Lake. 1676 Comment
  UCD99751  Eriogonum baileyi John Thomas Howell 1959-9-25 35028 Plumas summit of Beckwourth Pass. 1588 Comment



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