Aceraceae GH: 01870714  Acer glabrum  Torrey Canada: Alberta Banff: Devil's Lake   F. K. Butters & E. W. D. Holway 33 1907-7-5 
Asteraceae GH: 02140904  Agoseris aurantiaca aurantiaca  Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 242 1907-7-26 
 GH: 02141284  Agoseris glauca dasycephala (Torr. & A. Gray) Jepson Canada: Alberta Banff: [data not captured]   F. K. Butters & E. W. D. Holway 54a 1907-7-6 
 GH: 02141283  Agoseris glauca dasycephala (Torr. & A. Gray) Jepson Canada: Alberta Banff: [data not captured]   F. K. Butters & E. W. D. Holway 57 1907-7-6 
 GH: 02141280  Agoseris glauca dasycephala (Torr. & A. Gray) Jepson Canada: Alberta Banff: [data not captured]   F. K. Butters & E. W. D. Holway 54 1907-7-6 
 GH: 02217876  Aster alpinus vierhapperi Onno Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 11 1907-7-4 
 GH: 02207299  Erigeron acris kamteschaticus (de Candolle) Herder Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 274 1907-8-24 
 GH: 02207709  Erigeron aureus  Greene Canada: Alberta [data not captured]   F. K. Butters & E. W. D. Holway 103 1907-7-7 
 GH: 02207968  Erigeron caespitosus  Nuttall Canada: Alberta Banff: [data not captured]   F. K. Butters & E. W. D. Holway 319 1907-9-4 
 GH: 02206156  Erigeron compositus  Pursh Canada: Alberta Banff: [data not captured]   F. K. Butters & E. W. D. Holway 31 1907-7-5 
 GH: 02206141  Erigeron compositus  Pursh Canada: Alberta [data not captured]   F. K. Butters & E. W. D. Holway 28 1907-7-5 
 GH: 02206132  Erigeron compositus  Pursh Canada: Alberta [data not captured]   F. K. Butters & E. W. D. Holway 32 1907-7-5 
 GH: 02348855  Erigeron glacialis  (Nuttall) A. Nelson Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 160 1907-7-18 
 GH: 02348847  Erigeron glacialis  (Nuttall) A. Nelson Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 271 1907-8-24 
 GH: 02352099  Erigeron nivalis  Nuttall Canada: Alberta [data not captured]   F. K. Butters & E. W. D. Holway 183 1907-7-21 
 GH: 01831770  Hieracium gracile alaskanum Zahn Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 243 1907-7-26 
Betulaceae GH: 02194164  Betula occidentalis  Hooker Canada: Alberta Banff: Devil's Lake   F. K. Butters & E. W. D. Holway 42 1907-7-5 
Boraginaceae GH: 01994867  Lappula redowskii  (Hornemann) Greene Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 9 1907-7-4 
Brassicaceae GH: 00960474  Arabis hirsuta pycnocarpa (M. Hopkins) Rollins Canada: Alberta Banff: Devil's Lake   F. K. Butters & E. W. D. Holway 58 1907-7-6 
 GH: 00960681  Boechera retrofracta  (Graham) A. Löve & D. Löve Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 52 1907-7-6 
 GH: 01097280  Braya humilis maccallae J. G. Harris Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 153 1907-7-15 
 GH: 01097281  Braya humilis maccallae J. G. Harris Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 139 1907-7-15 
 GH: 01103373  Draba aurea  Vahl Canada: Alberta [data not captured]   F. K. Butters & E. W. D. Holway 40 1907-7-5 
 GH: 01115162  Draba incerta  Payson Canada: Alberta Banff: above Devil's Lake   F. K. Butters & E. W. D. Holway 39 1907-7-5 
 GH: 01115651  Draba lonchocarpa  Rydberg Canada: Alberta [data not captured]   F. K. Butters & E. W. D. Holway 90 1907-7-7 
 GH: 00971272  Draba oligosperma  Hooker Canada: Alberta [data not captured]   F. K. Butters & E. W. D. Holway 73 1907-7-6 
 GH: 00971686  Draba praealta  Greene Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 85 1907-7-6 
 GH: 00971687  Draba praealta  Greene Canada: Alberta Lake Louise: Lake Louise, Laggan   F. K. Butters & E. W. D. Holway 186 1907-7-21 
 GH: 01561210  Draba stenoloba  Ledebour Canada: Alberta Lake Louise: Lake Louise Laggan   F. K. Butters & E. W. D. Holway 187 1907-7-21 
 GH: 01575374  Physaria didymocarpa  (Hooker) A. Gray Canada: Alberta Devil's Lake Banff   F. K. Butters & E. W. D. Holway 41 1907-7-5 
Caryophyllaceae GH: 01743122  Cerastium beeringianum  Chamisso & Schlechtendal Canada: British Columbia Mt Sifton, Rogers Pass   F. K. Butters & E. W. D. Holway 270 1907-8-23 
 GH: 01745218  Minuartia biflora  (Linnaeus) Schinz & Thellung Canada: Alberta above Banff   F. K. Butters & E. W. D. Holway 91 1907-7-8 
 GH: 01713425  Minuartia rubella  (Wahlenberg) Hiern Canada: Alberta Banff: Devils Lake   F. K. Butters & E. W. D. Holway 34 1907-7-5 
 GH: 01623063  Stellaria longipes  Goldie Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 8 1907-7-4 
Cyperaceae GH: 02367906  Carex gynocrates  Wormskjold ex Drejer Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 249 1907-7-26 
 GH: 02367717  Carex nardina  Fries :  Rocky Mountains: [data not captured]   F. K. Butters & E. W. D. Holway 140 1907-7-15 
 GH: 02499137  Carex sp.   Canada: Alberta Banff: Rocky Mountains   F. K. Butters & E. W. D. Holway 1 1907-7-4 
Ericaceae GH: 01537157  Cassiope mertensiana  (Bongard) D. Don Canada: Alberta Lake Louise: Mt. Temple, Laggan Alta   F. K. Butters & E. W. D. Holway 98 1907-7-6 
 GH: 01718536  Menziesia ferruginea  Smith Canada:  [Laggun Altin]   F. K. Butters & E. W. D. Holway  1907-7-18 
 GH: 01683296  Phyllodoce glanduliflora  (Hooker) Coville Canada: Alberta [data not captured]   F. K. Butters & E. W. D. Holway 197 1907-7-21 
 GH: 01683428  Phyllodoce intermedia  Rydberg Canada: Alberta [data not captured]   F. K. Butters & E. W. D. Holway 99 1907-7-8 
 GH: 01683946  Pyrola asarifolia  Michaux Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 215 1907-7-24 
 GH: 01684961  Pyrola chlorantha  Swartz Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 217 1907-7-24 
 GH: 01763559  Rhododendron groenlandicum  (Oeder) Kron & Judd Canada: Alberta [data not captured]   F. K. Butters & E. W. D. Holway 71 1907-7-6 
Fabaceae GH: 02067368  Astragalus aboriginum  Richardson Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 15 1907-7-4 
 GH: 01958309  Hedysarum boreale mackenzii (Richardson) S. L. Welsh Canada: Alberta Lake Louise: Mt Temple, Laggan   F. K. Butters & E. W. D. Holway 121 1907-7-12 
 GH: 01958307  Hedysarum boreale mackenzii (Richardson) S. L. Welsh Canada: Alberta Banff: Devils Lake   F. K. Butters & E. W. D. Holway 26 1907-7-5 
 GH: 02132518  Oxytropis cusickii  Greenman Canada: Alberta [data not captured]   F. K. Butters & E. W. D. Holway 119 1907-7-11 
 GH: 02131667  Oxytropis sp.   Canada: Alberta Banff: [data not captured]   F. K. Butters & E. W. D. Holway 14 1907-7-4 
Gentianaceae GH: 02072694  Gentiana glauca  Pallas Canada: British Columbia Prairie Hills.   F. K. Butters & E. W. D. Holway 227 1907-7-25 
Geraniaceae GH: 01864961  Geranium richardsonii  Fischer & C. A. Meyer Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 89 1907-7-7 
Juncaceae GH: 02102075  Juncus drummondii  E. Meyer Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 258 1907-7-23 
 GH: 02498129  Juncus ensifolius  Wikström Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 247 1907-7-26 
 GH: 02397870  Juncus triglumis albescens (Lange) Hultén Canada: Alberta [data not captured]   F. K. Butters & E. W. D. Holway 175 1907-7-20 
 GH: 02397963  Juncus triglumis albescens (Lange) Hultén Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 236 1907-7-26 
Linaceae GH: 02053074  Linum lewisii  Pursh Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 7 1907-7-4 
Lycopodiaceae GH: 02164927  Diphasiastrum alpinum  (Linnaeus) Holub Canada: British Columbia Roger's Pass   F. K. Butters & E. W. D. Holway 267a 1907-8-3 
 GH: 02164928  Diphasiastrum alpinum  (Linnaeus) Holub Canada: British Columbia Roger's Pass   F. K. Butters & E. W. D. Holway 267a 1907-8-3 
 GH: 02164928  Diphasiastrum sitchense  (Ruprecht) Holub Canada: British Columbia Roger's Pass   F. K. Butters & E. W. D. Holway 267a 1907-8-3 
Onagraceae GH: 01673841  Epilobium anagallidifolium  Lamarck Canada: British Columbia McArthur [?] Pass   F. K. Butters & E. W. D. Holway 167 1907-7-17 
 GH: 01671326  Epilobium clavatum  Trelease Canada: Alberta Lake Louise: Lake Louise, Laggan   F. K. Butters & E. W. D. Holway 188 1907-7-21 
 GH: 01671947  Epilobium hornemannii  Reichenbach Canada: British Columbia Grizzly Creek, Prairie Hills   F. K. Butters & E. W. D. Holway 248 1907-7-26 
Orchidaceae AMES: 02065741  Amerorchis rotundifolia  (Banks ex Pursh) Hultén Canada: Alberta Banff: Devil's Lake   F. K. Butters & E. W. D. Holway 19 1907-7-5 
 GH: 01938437  Corallorhiza mertensiana  Bongard Canada: British Columbia Beaver Valley   F. K. Butters & E. W. D. Holway 218 1907-7-29 
 AMES: 02065161  Cypripedium passerinum  Richardson Canada: Alberta Banff: Devil's Lake   F. K. Butters & E. W. D. Holway 44 1907-7-6 
 AMES: 02050951  Listera borealis  Morong Canada: British Columbia McArthur Valley   F. K. Butters & E. W. D. Holway 159 1907-7-18 
 AMES: 02050887  Listera convallarioides  (Swartz) Nuttall ex Elliott Canada: British Columbia Selkirk Mountains, Bearer Valley   F. K. Butters & E. W. D. Holway 219 1907-7-29 
 AMES: 02063228  Platanthera dilatata  (Pursh) Lindley ex Beck Canada: Alberta Lake Louise, Layyan   F. K. Butters & E. W. D. Holway  1907-7-21 
 AMES: 02045402  Platanthera huronensis  (Nuttall) Lindley Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 2 1907-7-4 
 AMES: 02045405  Platanthera huronensis  (Nuttall) Lindley Canada: British Columbia McArthur Valley   F. K. Butters & E. W. D. Holway 158 1907-7-19 
 AMES: 02045406  Platanthera huronensis  (Nuttall) Lindley Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 69 1907-7-6 
 AMES: 02046332  Platanthera obtusata  (Banks ex Pursh) Lindley Canada: Alberta Banff: Devil's Lake   F. K. Butters & E. W. D. Holway 20 1907-7-5 
Orobanchaceae GH: 01878892  Castilleja rhexifolia  Rydberg Canada: British Columbia Prairie Hills   F. K. Butters & E. W. D. Holway 229 1907-7-24 
 GH: 01878887  Castilleja rhexifolia  Rydberg Canada: British Columbia Prospector's Valley   F. K. Butters & E. W. D. Holway 134 1907-7-15 
 GH: 01879350  Castilleja sulphurea  Rydberg Canada: British Columbia MacArthur Valley   F. K. Butters & E. W. D. Holway 161 1907-7-18 
 GH: 02082594  Orobanche uniflora occidentalis Abrams ex Ferris Canada: British Columbia Avalanche Crest, Glacier   F. K. Butters & E. W. D. Holway 268 1907-7-28 
 GH: 02081791  Pedicularis bracteosa  Bentham Canada: Alberta Lake Louise: Lake Louise, Laggan   F. K. Butters & E. W. D. Holway 204 1907-7-20 
 GH: 02080798  Pedicularis groenlandica  Retzius Canada: Alberta Lake Louise: Lake Louise, Laggan   F. K. Butters & E. W. D. Holway 177 1907-7-20 
Parnassiaceae GH: 01855373  Parnassia fimbriata  K. D. Koenig Canada: British Columbia Prairie Hills   F. K. Butters & E. W. D. Holway 245 1907-7-26 
Plantaginaceae GH: 01998619  Collinsia parviflora  Lindley Canada: Alberta Lake Louise: [data not captured]   F. K. Butters & E. W. D. Holway 180 1907-7-20 
 GH: 02118418  Penstemon confertus  Douglas ex Lindley Canada: Alberta Banff: [data not captured]   F. K. Butters & E. W. D. Holway 10 1907-7-4 
 GH: 02119295  Penstemon ellipticus  Coulter & Fisher Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 308 1907-7-29 
 GH: 02119288  Penstemon ellipticus  Coulter & Fisher Canada: Alberta Lake Louise: [data not captured]   F. K. Butters & E. W. D. Holway 189 1907-7-20 
 GH: 01812172  Veronica wormskjoldii nutans (Bongard) Pennell Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 137 1907-7-15 
Polygonaceae GH: 02360938  Polygonum minimum  S. Watson Canada: British Columbia [data not captured]   F. K. Butters & E. W. D. Holway 266 1907-7-29 
 GH: 02006074  Rumex acetosa  Linnaeus Canada: Alberta [data not captured]   F. K. Butters & E. W. D. Holway 211 1907-7-21 
Portulacaceae GH: 01860656  Montia parviflora  Douglas Canada: British Columbia Glacier   F. K. Butters & E. W. D. Holway 261 1907-7-29 
Primulaceae GH: 01942434  Androsace septentrionalis  Linnaeus Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 14 1907-7-4 
 GH: 01922612  Dodecatheon pulchellum  (Rafinesque) Merrill Canada: Alberta Banff: Devil's Lake   F. K. Butters & E. W. D. Holway 45 1907-7-5 
Ranunculaceae GH: 01706816  Anemone drummondii  S. Watson Canada: Alberta Lake Louise: Saddleback Mt. Laggan   F. K. Butters & E. W. D. Holway 202 1907-7-23 
 GH: 01707369  Anemone multifida saxicola Boivin Canada: Alberta Lake Louise: Laggan   F. K. Butters & E. W. D. Holway 198 1907-7-21 
 GH: 01707571  Anemone occidentalis  S. Watson Canada: British Columbia Prospector's Valley   F. K. Butters & E. W. D. Holway 13 1907-7-15 
 GH: 01708930  Aquilegia brevistyla  Hooker Canada: Alberta Banff: Devil's Lake   F. K. Butters & E. W. D. Holway 61 1907-7-6 
 GH: 01709412  Aquilegia flavescens  S. Watson Canada: Alberta Banff: Devil's Lake   F. K. Butters & E. W. D. Holway 30 1907-7-5 
 GH: 01709553  Aquilegia formosa  Fischer Canada: British Columbia Grizzly Creek, Prairie Hills   F. K. Butters & E. W. D. Holway 239 1/2 1907-7-26 
 GH: 01709557  Aquilegia formosa  Fischer Canada: British Columbia Grizzly Creek, Prairie Hills   F. K. Butters & E. W. D. Holway 239 1907-7-26 
 GH: 01709994  Caltha leptosepala  de Candolle Canada: British Columbia Prairie Hills   F. K. Butters & E. W. D. Holway 226 1907-7-28 
 GH: 01663496  Ranunculus eschscholtzii  Schlechtendal Canada: British Columbia Lake O'Hara   F. K. Butters & E. W. D. Holway 148 1907-7-17 
 GH: 01840010  Thalictrum venulosum  Trelease Canada: Alberta Banff: Ry. embankment   F. K. Butters & E. W. D. Holway 6 1907-7-4 
Rosaceae GH: 01607088  Fragaria virginiana glauca (S. Watson) Staudt Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 76 1907-7-7 
Santalaceae GH: 01932807  Comandra umbellata pallida (A. de Candolle) Piehl Canada: Alberta Banff: Devil's Lake   F. K. Butters & E. W. D. Holway 24 1907-7-4 
Saxifragaceae GH: 01733676  Chrysosplenium tetrandrum  Th. Fries Canada: British Columbia Lake O'Hara   F. K. Butters & E. W. D. Holway 169 1907-7-19 
 GH: 01735162  Heuchera cylindrica septentrionalis Rosendahl, Butters & Lakela Canada: Alberta Banff: Devil's Lake   F. K. Butters & E. W. D. Holway 27 1907-7-5 
 GH: 01735163  Heuchera cylindrica septentrionalis Rosendahl, Butters & Lakela Canada: Alberta Lake Louise: Lake Louise, Laggan   F. K. Butters & E. W. D. Holway 209 1907-7-21 
 GH: 01711113  Leptarrhena pyrolifolia  (D. Don) R. Brown ex Seringe Canada: British Columbia Prospectors Valley   F. K. Butters & E. W. D. Holway 135 1907-7-16 
 GH: 01711800  Micranthes lyallii  (Engler) Small Canada: British Columbia Prairie Hills   F. K. Butters & E. W. D. Holway 222 1907-7-25 
 GH: 01711912  Micranthes nelsoniana  (D. Don) Small Canada: British Columbia Along stream running into L. OHara, Yoho Par...  F. K. Butters & E. W. D. Holway 151 1907-7-17 
 GH: 01712868  Mitella breweri  A. Gray Canada: British Columbia Prairie Hills   F. K. Butters & E. W. D. Holway 224 1907-7-25 
 GH: 01712871  Mitella breweri  A. Gray Canada: British Columbia Prospector's Valley   F. K. Butters & E. W. D. Holway 142 1907-7-15 
 GH: 01616228  Mitella nuda  Linnaeus Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 74 1907-7-7 
 GH: 01616359  Mitella pentandra  Hooker Canada: British Columbia Prairie Hills   F. K. Butters & E. W. D. Holway 225 1907-7-25 
 GH: 01616564  Saxifraga adscendens  Linnaeus Canada: Alberta Lake Louise: Paradise Valley, Laggan   F. K. Butters & E. W. D. Holway 128 1907-7-12 
 GH: 01616570  Saxifraga adscendens  Linnaeus Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 94 1907-7-7 
 GH: 01619069  Saxifraga bongardi  C. Presl ex Engler Canada: British Columbia Glacier   F. K. Butters & E. W. D. Holway 259 1907-7-28 
 GH: 01619070  Saxifraga bongardi  C. Presl ex Engler Canada: British Columbia Snow Sheds, Glacier   F. K. Butters & E. W. D. Holway 277 1907-8-24 
 GH: 01619177  Saxifraga bronchialis austromontana (Wiegand) M. Peck Canada: Alberta Banff: [no additional data]   F. K. Butters & E. W. D. Holway 17 1907-7-4 
 GH: 01619722  Saxifraga cespitosa monticola (Small) A. E. Porsild Canada: British Columbia Lake MacArthur [Lake McArthur]   F. K. Butters & E. W. D. Holway 154 1907-7-18 
 GH: 01621439  Saxifraga mertensiana  Bongard Canada: British Columbia Avalanche Crest, Glacier   F. K. Butters & E. W. D. Holway 263 1907-7-28 
 GH: 01621602  Saxifraga oppositifolia  Linnaeus Canada: Alberta Lake Louise: Moraine of Victoria Glacier; La...  F. K. Butters & E. W. D. Holway a 44 1907-7-17 
 GH: 01631044  Saxifraga rivularis  Linnaeus Canada: British Columbia Lake O'Hara   F. K. Butters & E. W. D. Holway 150 1907-7-17 
 GH: 01631045  Saxifraga rivularis  Linnaeus Canada: British Columbia Dawson Range (lat 51º 10')   F. K. Butters & E. W. D. Holway 26a 1907-8-4 
 GH: 01633215  Tellima grandiflora  (Pursh) Douglas ex Lindley Canada: British Columbia Grizzly Creek, Prairie Hills   F. K. Butters & E. W. D. Holway 221 1907-7-24 
Violaceae GH: 02146577  Viola glabella  Nuttall Canada: British Columbia Grizzly Creek, Prairie Hills   F. K. Butters & E. W. D. Holway 254 1907-7-26 
 GH: 02146895  Viola labradorica  Schrank Canada: Alberta Lake Louise: Moraine Lake, Laggan   F. K. Butters & E. W. D. Holway 100 1907-7-7 
 GH: 02208192  Viola palustris  Linnaeus Canada: British Columbia Grizzly Creek, Prairie Hills   F. K. Butters & E. W. D. Holway 256 1907-7-28 
 GH: 02208191  Viola palustris  Linnaeus Canada: British Columbia Prospector's Valley   F. K. Butters & E. W. D. Holway 133 1907-7-16 
 GH: 02210239  Viola selkirkii  Pursh Canada: Alberta Lake Louise: Lake Louise, Laggan   F. K. Butters & E. W. D. Holway 185 1907-7-21 
 GH: 02211229  Viola sororia missouriensis (Greene) L. E. McKinney Canada: British Columbia Grizzly Creek, Prairie Hills   F. K. Butters & E. W. D. Holway 255 1907-7-26