1. Bitter vegetables in Yunnan refer to mustard vegetables such as leaves and bitter vegetables, or wild bitter vegetables, which are quite different from what northerners call bitter vegetables. The most classic way to eat them is to make them into bitter vegetables dipped in water.

2. The bitter vegetables mentioned by northerners generally refer to the wild vegetables of Compositae with bitter taste, and the more common ones are bitter herbs, bitter herbs, bitter herbs and lettuce. These wild vegetables are collectively called bitter vegetables, which are quite different from what Yunnan people refer to as bitter vegetables.

Yunnan, Guizhou and Sichuan like to call green vegetables bitter vegetables, but what they say is different from that in the north. Northerners like to call all green leafy vegetables green vegetables, or refer to green leafy Chinese cabbage, but the green vegetables mentioned in Yunguichuan area refer to the green leafy vegetables of mustard. Therefore, Yunnan bitter vegetable refers to all green leafy vegetables of mustard.