Aconitum maximum subsp. maximum
Phenology: Flowering summer (mid Jul–Sep).
Habitat: Meadows, thickets, and forests
Elevation: 0-300 m
Aconitum maximum subsp. maximum is a variable species. The only other species of Aconitum occurring with it on the Alaska Peninsula and the Aleutian Islands is A.delphiniifolium. Aconitum maximum subsp. maximum is reputedly extremely poisonous and was used as a source of arrow poison by the Aleuts (D. E. Moerman 1986; D. E. Brink 1982).