Yucca aloifolia

from WordNet (r) 3.0 (2006)

Yucca aloifolia
    n 1: a stiff yucca with a short trunk; found in the southern
         United States and tropical America; has rigid spine-tipped
         leaves and clusters of white flowers [syn: {Spanish
         bayonet}, {Yucca aloifolia}]

from The Collaborative International Dictionary of English v.0.48

Yucca \Yuc"ca\, n. [NL., from Yuca, its name in St. Domingo.]
   (Bot.)
   A genus of American liliaceous, sometimes arborescent, plants
   having long, pointed, and often rigid, leaves at the top of a
   more or less woody stem, and bearing a large panicle of showy
   white blossoms.
   [1913 Webster]

   Note: The species with more rigid leaves (as {Yucca
         aloifolia}, {Yucca Treculiana}, and {Yucca baccata})
         are called {Spanish bayonet}, and one with softer
         leaves ({Yucca filamentosa}) is called {bear grass},
         and {Adam's needle}.
         [1913 Webster]

   {Yucca moth} (Zool.), a small silvery moth ({Pronuba
      yuccasella}) whose larvae feed on plants of the genus
      {Yucca}.
      [1913 Webster]