dallisgrass

from WordNet (r) 3.0 (2006)

dallisgrass
    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}]

from The Collaborative International Dictionary of English v.0.48

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]