Cinnamon, tree, with grayish brown bark, slightly quadrangular young branches, densely covered with yellowish brown fluff, alternate or nearly opposite leaves, thick leathery, oblong to nearly lanceolate, 8 cm to 16 cm long and 4 cm to 5.5 cm wide.

Cinnamomum cassia, evergreen fragrant wood, with a height of up to 12 m to 20 m, gray and smooth bark, slender annual branchlets, densely covered with yellow prostrate pubescence, leathery leaves, nearly opposite on young branches, alternate on old branches, oval to lanceolate, 4 cm to 13 cm long and1wide.