Relatively small body sixe. Resembles an oak branch. Less than 30 individuals have been documented in the Peloncillo Mtns. In Mexico in the central and southern parts of its range it is found on elevated plateaus.
Exhibits arboreal behavior occasionally.
Active from July through September. Gestation is 13 months and young are born between August 1 and October 15. Newborns share the same space with the mother and leave within a few days. Mortality of newborns is caused by predation, lack of food and freezing. Active from late March through early October, with increased surface activity through early October.