Quercus ellipsoidalis E.J.Hill
Family: Fagaceae
Hill's oak, northern pin oak
Quercus ellipsoidalis image
Emmet J. Judziewicz  
Etymology: Quercus: Latin for oak
Plants: perennial, deciduous tree to 65' tall; lower trunk often having stubs of old branches; dark gray brown bark with shallow grooves, inner bark orangish
Leaves: elliptic in outline, blunt to slightly pointed base, edges with 5-7 deep lobes and 15-55 sharp points, upper side shiny light green
Flowers: dark reddish brown, terminal, oval buds obviously 5-angled in cross section; blooms in spring
Fruits: acorns biennial; narrowly turban-like to deeply cup-shaped covering 1/3-1/2 of the nut; oblong to roundish nut usually not smooth, elliptic to oval, sometimes with 1 or more faint rings of pits around the tip
Habitat: dry sandy sites
Conservation Status: Native