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A South American perennial grass (Paspalum dilatatum) having long seedheads, grown for pasturage in the southern United States and often occurring as a weed in lawns.
[After A.T. Dallis, 19th-century American farmer who promoted its use as pasturage.]
Dal′lis grass`(ˈdæl ɪs)
a pasture grass, Paspalum dilatatum, native to South America and naturalized in the southern U.S.
[1905–10, Amer.; after A. T. Dallis (or Dallas), 19th century U.S. farmer]
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|Noun||1.||dallis grass - tall tufted perennial tropical American grass naturalized as pasture and forage grass in southern United States|
grass - narrow-leaved green herbage: grown as lawns; used as pasture for grazing animals; cut and dried as hay
genus Paspalum - a genus of perennial grasses of warm regions