Lu Jiao Mu (鹿角木)

Drawing of a Lu Jiao Mu (highlighted), from 'Wu Bei Zhi (《武備志》)'.

Lu Jiao Mu (鹿角木, lit. 'Deer horn wood') is the Chinese name for abatis. It is simply a cut down tree with dense branches, with its trunk partially buried underground.

The Roman counterpart to Lu Jiao Mu is known as Cippus (plural Cippi).