The Collaborative International Dictionary of English v.0.48:

candellila \candellila\ n.
   1. either of two Mexican shrubs Pedilanthus bracteatus or
      Pedilanthus pavonis.
      [WordNet 1.5]

   2. a wax-coated shrub (Euphorbia antisyphilitica) of
      northern Mexico and the southwestern U.S.
      [WordNet 1.5]

WordNet (r) 3.0 (2006):

Euphorbia antisyphilitica
    n 1: wax-coated shrub of northern Mexico and southwestern United
         States [syn: candelilla, Euphorbia antisyphilitica]