Source : Webster's Revised Unabridged Dictionary (1913)

Sanguinaria \San`gui*na"ri*a\, n. [NL. See {Sanguinary}, a. &
   n.]
   1. (Bot.) A genus of plants of the Poppy family.

   Note: {Sanguinaria Canadensis}, or bloodroot, is the only
         species. It has a perennial rootstock, which sends up a
         few roundish lobed leaves and solitary white blossoms
         in early spring. See {Bloodroot}.

   2. The rootstock of the bloodroot, used in medicine as an
      emetic, etc.

Source : WordNet®

Sanguinaria
     n : 1 species: bloodroot [syn: {genus Sanguinaria}]