Brassica rapa chinensis, called "bok choy" in the United States
|Cultivar group||Chinensis, Pekinensis groups|
|Origin||China, before the 15th Century|
Bok choy (also known as pak choi, boc choy, and pok choi) is classified as a Chinese cabbage.  It does not look like the round European cabbages found in western supermarkets, or to Napa cabbage. While its white stalks may look like celery, it's part of the cabbage family and does not have the same stringiness. The dark green, crinkly leaves of the most common type are like Romaine lettuce.
History[change | change source]
The Chinese, who have been cultivating the plant for more than 5000 years,  commonly refer to bok choy as pak choi or "white vegetable." Another common name is white cabbage.