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.
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.
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.
Wilbur, R.L. 1954. An undescribed dwarf species of Amorpha from Georgia. Rhodora 56: 261-265.
Wilbur, R.L. 1964. A revision of the dwarf species of Amorpha (Leguminosae). J. Elisha Mitchell Sci. Soc. 80: 51-65.
Wilbur, R.L. 1975. A revision of the North American genus Amorpha (Leguminosae-Psoraleae). Rhodora 77: 337-409.
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