According to the query Lishui City Agricultural Academy of Sciences shows.

1, the appearance is not the same: purple mustard is dark green and red leaves, leaves thick and tough, ruby-colored stripes, leaves are small when there is obvious fine serration; children's lettuce is a kind of mustard. The axillary buds are overlapping and pagoda-shaped on the stem. Fleshy stems expanded, racemes terminal, flowers yellow, sepals yellowish, oblong-elliptic, petals obovate, long horned fruit linear.

2, purple mustard purple mustard anthocyanin content is super high, anthocyanin is known as a natural oral cosmetics, improve sleep, vision, cancer prevention and other vegetables do not have the magical effect; children's vegetables are rich in water content, crisp and refreshing, with the unique aroma of the cruciferous plants, more than freshly eaten mainly with the spirit of the brain, laxative, eyesight protection and other effects.