This section is from the book "Cooking Vegetables. Practical American Cookery", by Jules Arthur Harder. Also available from Amazon: The Physiology Of Taste.
Pak Choi. Pakchoi.
No. 1030. - Pak-Choi is an annual plant, a native of China. The root leaves are oval, regular, smooth and deep green, with long, naked, fleshy, white stems, somewhat similar to those of the Swiss-chard or leaf beets. The leaves are eaten boiled, like Cabbage, but are much more tender and of a more agreeable flavor. It is sown in April in hills or drills, and should be thinned out to twelve inches apart.
 
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