Avena

·noun A genus of grasses, including the common oat (Avena sativa); the oat grasses.

avena
ăvēna, ae, f. [v. 1. aveo init.; orig. nourishment]. I.A. Oats; and specif., common oats , Gr. βρό...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
avena
avēna ae, f oats, V.: steriles avenae, wild oats, V.: si avenam videris, i. e. weeds.—An oatstraw, ...

An Elementary Latin Dictionary