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.
Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March 28, 2025
https://mifloradev.lsa.umich.edu/flora-demo/#/genus/Aronia