Cruciferae Brassica campestris L. (Chinese group)
Source: Magness et al. 1971
Pakchoi is quite closely related to Chinese Cabbage, which see. Pakchoi resembles miniature Swiss chard. As compared to Chinese Cabbage, the head is shorter and more loose. Kai Choy has broader petioles as compared to Pakchoi. and develops a loose bead as Pakchoi. Leaves are cupped or spoon-shaped. In culture and use Pakchoi and Kai Choy are similar to Chinese Cabbage, but exposure of edible parts to pesticides is somewhat greater. No data on production in the Continental U.S. are available, as it is included with Chinese Cabbage. Hawaii produced 655 tons on 80 acres in 1968.