For Alysicarpus
Isely, D. 1998. Native and naturalized Leguminosae (Fabaceae) of the United States (exclusive of Alaska and Hawaii). Monte L. Bean Life Science Museum, Brigham Young Univ., Provo, UT.
Woods, M., and A.R. Diamond, Jr. 2016. Alysicarpus ovalifolius and Alysicarpus vaginalis (Fabaceae) in Alabama. Phytoneuron 2016-46: 1-3.