1	"Leaf margin with less than 6 teeth per cm"	"Amelanchier alnifolia"
1	"Leaf margin finely toothed"	2
2	"Stoloniferous shrub"	"Amelanchier canadensis"
2	"Non-stoloniferous tree or shrub"	3
3	"Tip of ovary hairless; fruit reddish purple"	"Amelanchier arborea"
3	"Tip of ovary hairy; fruit blue-black"	"Amelanchier asiatica"