1, leaf shape and color: the leaves of Ipomoea aquatica are oblong or oval, dark green; Shepherd's shepherd's purse leaves are pinnately compound leaves, which are composed of many leaflets. The overall appearance is similar to that of ferns and the color is lighter.

2. How to eat and how to eat: Achnatherum splendens is mainly used as a vegetable for people to eat. Can be eaten raw, cold salad, fried and other ways to process into different flavors of food. Shepherd's purse can be eaten as a vegetable, and it is also used as a Chinese herbal medicine in some places.