
Villagers collect water shield leaves, a kind of water vegetable, at a base in Lichuan, central China's Hubei Province, May 10, 2017. (Xinhua/Yang Shunpi)

Villagers collect water shield leaves, a kind of water vegetable, at a base in Lichuan, central China's Hubei Province, May 10, 2017. (Xinhua/Yang Shunpi)