Quercus bicolor, Swamp White Oak

White Oak Group: acorns mature in 1 year, small ones not present on winter twigs, leaves blunt-lobed, rounded at apex, winter buds generally rounded at apex

Size: tree, 50-60' average height at maturity

Buds: imbricate, broadly ovate, .125-.25", clustered at twig tips

Leaves: deciduous, alternate, 3-7" long, 1.25-4" wide, simple, oblong-obovate to obovate, margins variable, sometimes lobed to the midrib, sometimes rounded, sinuously toothed margins, tip acute or rounded, shiny dark green above, lighter and tomentose or velvety on underside, fall color yellow or reddish purple

Twigs: yellow-brown to reddish brown, glabrous, stout or slender, 5-point star-shaped pith

Flowers: monoecious, male flowers in catkins, females in leaf axils, solitary or in small clusters

Fruit: acorn (nut plus involucre) up to about 1", often born in pairs, nut shiny light-brown, top third covered by involucre

Bark: gray brown, flaky, deep fissures and long ridges