1. Fruits very dark purple to black when fully ripe, the larger mostly 8–11 mm in diameter; larger inflorescences mostly 6–12-flowered.
1. Fruits bright red when fully ripe; mostly 4–7 mm in diameter; larger inflorescences mosly 10–18-flowered.
All species found in Aronia
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March 19, 2019. https://www.michiganflora.net/genus.aspx?id=Aronia.