The Collaborative International Dictionary of English v.0.48:

Devilwood \Dev"il*wood`\, n. (Bot.)
   A kind of tree (Osmanthus Americanus), allied to the
   European olive.
   [1913 Webster]

WordNet (r) 3.0 (2006):

devilwood
    n 1: small tree of southern United States having panicles of
         dull white flowers followed by dark purple fruits [syn:
         devilwood, American olive, Osmanthus americanus]