Acacia chiapensis Saff. Acacia chiapensis Saff. in J. Wash. Acad. Sci. 5: 356. 1915 sec. Rico 2007=Vachellia chiapensis (Saff.) Seigler & Ebinger in Phytologia 87(3): 150. 2006 ["2005"] syn. sec. Rico 2007