For Evolvulus
Austin in FNA (in prep.)
Harms, R.T. 2014. A new species of Evolvulus (Convolvulaceae) from the High Plains of the Texas/New Mexico border. Phytoneuron 2014-20: 1-20.
van Ooststroom, J. 1934. A monograph of the genus Evolvulus. Meded. Bot. Mus. Herb. Rijks. Univ. Utrecht 14: 1-267.
Ward, D.B. 1968. Contributions to the flora of Florida – 3, Evolvulus (Convolvulaceae). Castanea 33: 76-79.
Wilson, K.A. 1960b. The genera of Convolvulaceae in the southeastern United States. J. Arnold Arb. 41: 298-317.