Watergrass

Hygroryza (watergrass) is a monotyipic genus of Asian flowering plants in the grass family. The only known species is Hygroryza aristata, (Asian watergrass) native to China (Fujian, Guangdong, Hainan, Taiwan, Yunnan), Bangladesh, Cambodia, India (Maharashtra, Karnataka, Assam, etc.), Laos, Malaysia, Myanmar, Nepal, Pakistan, Sri Lanka, Thailand, Vietnam.

formerly included

Hygroryza ciliata - Leersia hexandra