Agoseris eisenhoweri B.Boivin accepted as Agoseris glauca (Pursh) Raf. (original description)
Arnica alpina var. vahliana B.Boivin (original description)
Arnica porsildiorum B.Boivin (original description)
Arnica sornborgeri var. ungavensis B.Boivin accepted as Arnica stricta subsp. alpina (L.) I.K.Ferguson (original description)
Aster subgeminatus (Fernald) B.Boivin accepted as Symphyotrichum subgeminatum (Fernald) G.L.Nesom (original description)
Senecio pauciflorus var. genuinus B.Boivin (original description)
Senecio pauperculus f. discoideus B.Boivin (original description)
Tanacetum huronense var. monocephalum B.Boivin (original description)