The vine staff, vine-staff, or centurion's staff (Latin:vitis) was a vinewood rod of about 3 feet (1 m) in length used in the ancient Roman Army and Navy. It was the mark and tool of the centurion: both as an implement in the direction of drill and maneuvers; and to beat wayward or laggard soldiers or sailors under his command. It was also borne by evocati who held an equivalent rank.