Paspalum dilatatum n 1: tall tufted perennial tropical American grass naturalized as pasture and forage grass in southern United States [syn: {dallisgrass}, {dallis grass}, {paspalum}, {Paspalum dilatatum}]
Water grass \Water grass\ (a) A tall march perennial grass ({Paspalum dilatatum}) of the southern United States and the American tropics. (b) Manna grass. (c) The grass {Chloris elegans}. (d) [Dial. Eng.] (1) Velvet grass. (2) The water cress. (3) One of various horsetails. [Webster 1913 Suppl.]
dallis grass \dallis grass\, dallisgrass \dallisgrass\n. a tall tufted perennial tropical American grass ({Paspalum dilatatum}) naturalized as pasture and forage grass in the southern U.S. Syn: paspalum, {Paspalum dilatatum}. [WordNet 1.5]