Scarlet oak or Spanish oak (Quercus coccinea) is a medium to large deciduous tree. It has alternatively placed, deeply-lobed, sharply-toothed leaves. The twigs are reddish-brown with whitish-hairy bud tips. Flowers form as separate male and female catkins. Its fruit is an acorn with a deep, tightly scaled cup. Its species name comes from the fact that its autumn leaves are scarlet (compared to pin oak leaves which turn bronze). The tree is native to eastern North America.