For Clitoria
Fantz, P.R. 2000. Nomenclatural notes on the genus Clitoria for the Flora North American project. Castanea 65: 89-92.
Fantz, P.R. 2002b. Distribution of Clitoria (Leguminosae: Phaseoleae: Clitoriinae) for the Flora of North America project. Vulpia 1: 82-132.
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.