·noun A genus of grasses, including species called in common language bent grass. Some of them, as redtop (Agrostis vulgaris), are valuable pasture grasses.
agrōstis, is, f., = ἄγρωστις, couchgrass , quitch-grass , App. Herb. 77. ...
A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.