The appearance is different and the taste is different.

1. Brassica japonicus is a long-shaped root vegetable, cylindrical or oblate in shape, with a white or light yellow outer skin and a hard texture. Mustard pimples are a spherical or oblate vegetable with a dark green or reddish-brown outer skin and a soft texture.

2. The taste of manjing is relatively crisp and refreshing, with a slightly sweet taste. The texture of mustard knots is more delicate and soft, and the taste is slightly bitter.