(n)a small two-needled upland pine of the eastern United States (Appalachians) having dark brown flaking bark and thorn-tipped cone scales, Syn.Pinus pungens, hickory pine, prickly pine
(n)tall pine of western North America with stout blue-green needles; bark is grey-brown with rectangular plates when mature, Syn.Pinus monticola, silver pine, mountain pine