What is a railing or trellis upon which fruit trees or shrubs are trained, as upon a wall; a tree or row of trees so trained. And figs from standard and espalier join. Pope called?

espalier — A railing or trellis upon which fruit trees or shrubs are trained, as upon a wall; a tree or row of trees so trained. And figs from standard and espalier join. Pope. (Webster's 1913.)