(n.) A railing or trellis upon which fruit trees or shrubs are trained, as upon a wall; a tree or row of trees so trained.
(v. t.) To form an espalier of, or to protect by an espalier.
Example Sentences:
(1) "In Argentina, Chile and China there are immense plantations with the olives grown on espaliers so they can be harvested mechanically," says Pere Solé on his farm at La Bisbal del Penedès in Catalonia.
Treillage
Definition:
(n.) Latticework for supporting vines, etc.; an espalier; a trellis.