tetrastichous

tetrastichous

(tɛˈtræstɪkəs)
adj
(Botany) (of flowers or leaves on a stalk) arranged in four vertical rows

te•tras•ti•chous

(tɛˈtræs tɪ kəs)

adj.
arranged in four vertical rows, as flowers on a spike.
[1865–70; < New Latin tetrastichus < Greek tetrástichos having four lines or rows. See tetra-, -stichous]