References
For Apios
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. Google Scholar
Li, J., J. Jiang, H. Vander Stel, A. Homkes, J. Corajod, K. Brown, and Z. Chen. 2014. Phylogenetics and biogeography of Apios (Fabaceae) inferred from sequences of nuclear and plastid genes. Int. J. of Plant Sci. 175: 764-780. Google Scholar
Woods, M. 2005. A revision of the North American species of Apios (Fabaceae). Castanea 70: 85-100. Google Scholar
Woods, M. 2023a. Apios. Pp.378-380. In Flora of North America Editorial Committee. 2023a. Flora of North America north of Mexico. Volume 11.1, Magnoliophyta: Fabaceae, part 1. Oxford Univ. Press, New York, NY. 541 pp. Google Scholar