The Corky-stem polyalthia (Polyalthia suberosa) belongs to Annonaceae (the Custard apple family). It is a small evergreen tree that is native to India. It is shrubby with many small branches. It produces a single, small, pale yellow flower in the leaf axils. The corolla is three lobed, and after flowering, it bears several globular fruits about 8 mm in diameter. The fruits ripen to purple and are edible.