WordNet (r) 3.0 (2006):

Shumard oak
    n 1: large deciduous red oak of southern and eastern United
         States having large seven-lobed to nine-lobed elliptical
         leaves, large acorns and medium hard coarse-grained wood
         [syn: Shumard oak, Shumard red oak, Quercus
         shumardii]