1. Different families and genera: Piper nigrum is a plant of Zanthoxylum of Rutaceae, and Qingxiangmu is a plant of Pistacia of Anacardiaceae.
2. Number of leaves: The leaves of Piper nigrum are odd, and there is only one leaf on the top of the branch. The leaves of Fragrant Wood are even, and there are two opposite leaves on the top of the branch. This is also the most obvious feature to distinguish Piper nigrum and Fragrant Wood.
3, leaf size: If the pepper wood and fragrant wood at the same time placed in front of your eyes, you will find that the leaves of fragrant wood is much larger than the leaves of pepper wood.
4. Leaf color: Under the condition of sufficient light, the tender leaves at the top of the branches of Fragrant Wood will turn red, while the leaves of Pepper Wood will not turn red.
5, different aroma: pepper wood leaves usually no taste, but its leaves crumble, will smell a faint pepper flavor.Fragrant wood does not need to crumble leaves, you can smell a faint orange flavor, especially fragrance.
6. Fruit color: When the fruit of Piper nigrum is ripe, the pericarp is brown, and when the fruit of Fragrant Wood is ripe, the pericarp is gray-blue.