1、 Leaf difference

The leaves of Hainan Putao are leathery, broad oval or narrow oval, about 6 to 12 cm long and about 3.5 to 7 cm wide. The apex of the leaves is blunt, with a short tip, and the base is broad wedge-shaped, vaguely circular

The leaf is thin leathery, oval or oblong, 10 to 22 cm long and 5 to 8 cm wide. The apex of the leaf is blunt or slightly pointed, and the base becomes narrow, round or micro cardioid

2、 Flower difference

The panicle of Hainan Putao is axillary or on the flower branches, occasionally terminal, up to 11 cm. The flowers have short pedicels, the flowers are white, 3 to 5 in clusters, the calyx tube is conical, about 4 mm long, and the petals have 4, oval, about 2.5 mm long

The cymose inflorescence is terminal or axillary, 5 to 6 cm long, with several small flowers, white flowers, and the pedicel is about 5 mm long