Asparagus Lettuce (Celtuce)
Celtuce, stem lettuce, asparagus lettuce, or celery lettuce, or, at Chinese grocery stores, as wosun, these are few of its common names
The stem of the celtuce should be peeled of its tough exterior (this is not very hard; you can use a peeler or a knife), revealing an interior that’s surprisingly crisp, delicate, and mild. It is fantastically versatile, tending to retain its jicama- or water-chestnut-like crispness whether pickled, grilled, roasted, or stir-fried.
It is also a good source of Thiamin, Niacin, Vitamin B6, Calcium, Iron and Phosphorus, and a very good source of Dietary Fiber, Vitamin A, Vitamin C, Riboflavin, Folate, Magnesium, Potassium and Manganese.