Ipomoea purpurea U.S.A., South Carolina, Charleston, Dec 1980, Daniel Austin (1). Peru, Lima, Mar 1982, Daniel Austin (2). Mexico, Sonora: 1) growing as weed in Hermosillo, and 2) Mpio. Ures, Sierra Mazatán, Jesús Sánchez-Escalante. Mexico: Sonora, MABA Expedition to the Sierra Aconchi, Sep 2012, James C. Rorabaugh.