Amelanchier alnifolia
Michigan Native: No
Also known as: western serviceberry, alder-leaved serviceberry
 
Saskatoon or western serviceberry is a medium to large upright, multi-stemmed shrub with four-season interest. The clusters of fragrant, white drooping flowers appear in spring, followed by large, bluish-purple berries which are juicy and edible. Small blue-green leaves turn brilliant yellow and red in fall and the light gray bark is smooth with vertical streaks add winter interest. Excellent for shrub borders, woodland gardens and in mass.
 
https://plants.usda.gov/core/profile?symbol=AMALA