References
For Amorpha
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
Straub, S.C.K., B.A. Sorrie, and A.S. Weakley. 2009. A new name for an old Amorpha (Fabaceae: Amorpheae). J. Bot. Res. Inst. Texas 3: 151-155. Google Scholar
Straub, S.C.K., J.L. Reveal, and A.S. Weakley. 2023. Amorpha. Pp. 258-270. 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
Wilbur, R.L. 1954. An undescribed dwarf species of Amorpha from Georgia. Rhodora 56: 261-265. Google Scholar
Wilbur, R.L. 1964. A revision of the dwarf species of Amorpha (Leguminosae). J. Elisha Mitchell Sci. Soc. 80: 51-65. Google Scholar
Wilbur, R.L. 1975. A revision of the North American genus Amorpha (Leguminosae-Psoraleae). Rhodora 77: 337-409. Google Scholar