Styrax hemsleyanus (Hemsley snowball) is a species of flowering plant in the family Styracaceae, native to central China. Growing to 8 m (26 ft) tall by 5 m (16 ft) broad, it is a conical deciduous tree with large rounded leaves, 12 cm (5 in) long, and clusters of cup-shaped flowers in early summer.The plant has gained the Royal Horticultural Society's Award of Garden Merit.