If it's cabbage, you should read gai. However, if you just read "mustard", there are two pronunciations, that is, Jie and Gai. .

Beggars' gangs are all kinds of uncovers. . Cabbage has large leaves, wrinkled surface and obvious veins. This is an ordinary vegetable.

Gem is a small yellow flower with slender fruit and yellow seeds. Its seeds are spicy and ground into powder, which is called Jiefen, also known as wasabi.