The Sand post oak (Quercus margaretta) belongs to Fagaceae (the Beech family). It is a tall deciduous tree that is distributed from Massachusetts south to central Florida and west into eastern Kansas, Illinois, and Texas in the United States. This tree grows in open ridges, sandhill scrubs, and woods, and up to a height of about 20 m. The bark is gray to reddish-brown with broad, flat ridges and scaly fissures. The leaves are stiff, dark green, alternate, and variable in shape. The fruit is a 1.5 to 2 mm ovate acorn with a saucer-shaped cap. The cap is scaly, with soft hairs.