morus alba

from WordNet (r) 3.0 (2006)

Morus alba
    n 1: Asiatic mulberry with white to pale red fruit; leaves used
         to feed silkworms [syn: {white mulberry}, {Morus alba}]

from The Collaborative International Dictionary of English v.0.48

Morus \Mo"rus\, n. [L., mulberry tree. See {Mulberry}.] (Bot.)
   A genus of trees, some species of which produce edible fruit;
   the mulberry. See {Mulberry}.
   [1913 Webster]

   Note:

   {Morus alba} is the white mulberry, a native of India or
      China, the leaves of which are extensively used for
      feeding silkworms, for which it furnishes the chief food.
      

   {Morus multicaulis}, the many-stemmed or Chinese mulberry, is
      only a form of white mulberry, preferred on account of its
      more abundant leaves.

   {Morus nigra}, the black mulberry, produces a dark-colored
      fruit, of an agreeable flavor.
      [1913 Webster]