1、 Stem characteristics

The height of tongtuo wood is generally 1 to 3.5 meters. The stem is thick and does not have branches. When the plant is young, the surface is densely covered with yellow star like hairs. Its stem is large, white and papery, its bark is dark brown, slightly wrinkled, and its newborn branches are light brown or yellowish brown, with obvious leaf marks and large lenticels

2、 Leaf characteristics

The leaves of tongtuomu are large and alternate, usually gathered at the top of the stem. The petiole is thick and cylindrical, about 30 to 50 cm long. The stipules are membranous and conical. The base is connate with the petiole, with star shaped villi. The leaves are paper or thin leathery, with palmately 5 to 11 cracks

3、 Flower characteristics

The flowers of tongtuomu gather in umbels to form terminal or near terminal large compound cones, which are more than 50 cm long. The flowers have 4 petals and 5 vaguely, which are triangular ovate