For Kummerowia
Akiyama, S., and H. Ohba. 1985. The branching of the inflorescence and vegetative shoot and taxonomy of the genus Kummerowia (Leguminosae). Bot. Mag. Tokyo 98: 137-150. Google Scholar
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
Ohashi, H. 2023a. Kummerowia. Pp. 429-431. 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