Main Entry: sea oats

Function: noun plural but singular or plural in construction

Date: 1894

: a tall grass (Uniola paniculata) that has panicles resembling those of the oat, grows chiefly on the coast of the southern United States, and is useful as a sand binder; also : a related plant (Chasmanthium latifolium syn. U. latifolia) chiefly of the eastern United States