Gynura bicolor

Gynura bicolor, hongfeng cai 紅鳳菜, Okinawan spinach 「水前寺菜（スイゼンジナ）」or edible gynura, is a member of the chrysanthemum family (Asteraceae). It is native to China, Thailand, and Myanmar but grown in many other places as a vegetable and as a medicinal herb.

There are two kinds: one that is green on both sides, and another with leaves that are green on the top and purple underneath. Both kinds are considered medicinal vegetables. Gynura bicolor is a perennial and therefore found for sale throughout the year, however, winter and spring are the best times to use the plant.