Foxy Lady: bok choy :
http://www.wegmans.com/kitchen/ingredients/produce/vegetables/images/bok_choy.jpg
Bok choy is an Asian member of the cabbage family that has a mild flavor. It consists of long, thick, white stalks, topped by intensely blue-green leaves. Bok choy is a familiar vegetable in Chinese restaurants, where it appears in won ton soup and many stir-fried dishes.

it is more like chard or broccoli in taste.
http://www.pccnaturalmarkets.com/health/Food_Guide/Bok_Choy.htm