Definition: Cinnamon consists of the dried bark, freed from the outer cork and the underlying parenchyma, of the shoots grown on cut stock of Cinnamomum zeylanicum Nees.

• 本品为樟科植物锡兰肉桂Cinnamomum zeylanicum Nees.；的抽条于树干割口嫩枝的干燥树皮，同时除去外部木栓组织和薄壁组织。