Acacia cochliacantha

A subtropical Acacia reaching as far north as the barrancas of the Sierra Madre Occidental, Mexico. The stipular spines are modified to form ant domatia.

Leaves, Barranca de Batopilas, estado Chihuahua, 22 Mar 2007.

Closer view of the spines in Barranca de Batopilas, 22 Mar 2007.