| canyon oak | (n) medium-sized evergreen of southwestern United States and northwestern Mexico with oblong leathery often spiny-edged leaves, Syn. iron oak, maul oak, Quercus chrysolepis, canyon live oak |
| post oak | (n) small deciduous tree of eastern and central United States having dark green lyrate pinnatifid leaves and tough moisture-resistant wood used especially for fence posts, Syn. iron oak, box white oak, brash oak, Quercus stellata |