1. Leaves silvery with dense scales on upper surface; flowering with the leaves.
1. Leaves greenish on upper surface, essentially lacking scales; flowering before the leaves expand.
All species found in Shepherdia
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. June 26, 2019. https://www.michiganflora.net/genus.aspx?id=Shepherdia.