is used. Less commonly, the names Chinese chard, Chinese mustard, celery mustard, and spoon cabbage are also used.

There are two main types of bok choy, collectively called ??? xiao bái cài ("small white vegetable") in Mandarin. One is white bok choy with dark green blades and white stalks, which is primarily cultivated in South China, and in Cantonese it is simply called baak choi (; the same characters pronounced bái cài by Mandarin speakers are preferably