1、 Trunk difference
Black bone tea belongs to shrubs. The bark and roots are black, and the wood is very hard
Red sandalwood with small leaves belongs to a tree. The trunk is straight, the bark is dark brown, will be deeply split, and is in rectangular thin slices. The sap of the trunk is dark red
2、 Leaf difference
The leaves of black bone tea are small and alternate, chicken heart-shaped. The leaves are leathery, very dark green, and its new buds are tender red
Leaflet red sandalwood usually has 3 to 5 leaflets, which are generally oval or oval in shape and grow about 9 to 15 cm
3、 Flower difference
The flowers of black bone tea are small and white. They usually grow in leaf axils
The flowers of small leaf red sandalwood are yellow or with yellow stripes, and the flowering period is from November to December