1. Leaflets with glands very inconspicuous if present beneath, but usually densely pubescent; calyx ± densely pubescent; fruit densely pubescent, the large glands thus concealed; plant unbranched or branched from the base.
1. Leaflets strongly gland-dotted beneath but nearly or quite glabrous; calyx glabrous except on the lobes; fruit glabrous, conspicuously glandular; plant a much-branched shrub.
All species found in Amorpha
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. July 17, 2019. https://www.michiganflora.net/genus.aspx?id=Amorpha.