Flowering white cabbage, Choy sum
Brassica campestris var. chinoleifera
Family: Brassicaceae
What it is like
A cabbage family herb.
There are about 30 Brassica species and many cultivated varieties. Chemical composition (stem): Protein = 2.94%. Fat = 0.6%. Carbohydrate = 5.2%. Ash = 1.6%; (leaves): Protein = 1.2%. Fat = 3.9%. Carbohydrate = 1.9%. Ash = 0.9%. Both leaves and stems contain small quantities of Vitamin A, B1 , and D; moderate amounts of Vitamin B2, and reportedly rich in Vitamin C. The seeds have been analysed giving a 74.8 amino acid content, high in Histidine, Isoleucine, Leucine, Lysine, Methionine, and Valine.
Where it is found
It is a temperate plant.
Countries/locations it is found in
Asia, China, India
How it is used for food
The plant is also the source of colza oil, which is used in cooking.
Edible parts
Leaves