The Collaborative International Dictionary of English v.0.48:
canopied \canopied\ adj. covered with or as with a canopy; as, a canopied bed; streets canopied by stately trees. [WordNet 1.5]WordNet (r) 3.0 (2006):
canopied adj 1: covered with or as with a canopy; "a canopied bed"; "streets canopied by stately trees"