tristichous

[ tris-ti-kuh s ]
/ ˈtrɪs tɪ kəs /

adjective

arranged in three rows.
Botany. arranged in or characterized by three vertical rows.

Origin of tristichous

First recorded in 1855–60, tristichous is from the Greek word trístichos of three rows or verses. See tri-, -stichous

British Dictionary definitions for tristichous

tristichous
/ (ˈtrɪstɪkəs) /

adjective

arranged in three rows, esp (of plants) having three vertical rows of leaves