arboreal


arboreal (http://definr.com/arboreal)

     adj 1: of or relating to or formed by trees; "an arborous roof"
            [syn: arborical, arborary, arborous]
     2: inhabiting or frequenting trees; "arboreal apes" [syn: arboreous,
         tree-living] [ant: nonarboreal]
     3: resembling a tree in form and branching structure;
        "arborescent coral found off the coast of Bermuda";
        "dendriform sponges" [syn: arboreous, arborescent, arboresque,
         arboriform, dendriform, dendroid, dendroidal, treelike,
         tree-shaped]