treil·lage /trɛˈjɑʒ/
  Treil·lage n.  Latticework for supporting vines, etc.; an espalier; a trellis.
     I shall plant the roses against my treillage to-morrow.   --Walpole.
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  treillage
       n : latticework used to support climbing plants [syn: trellis]