The Collaborative International Dictionary of English v.0.48:

booyong \booyong\ n.
   large tree (Heritiera trifoliolata or Terrietia
   trifoliolata) of Australasia.

   Syn: red beech, brown oak, crow's foot, stave wood, silky
        elm.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

booyong
    n 1: large tree of Australasia [syn: red beech, brown oak,
         booyong, crow's foot, stave wood, silky elm,
         Heritiera trifoliolata, Terrietia trifoliolata]