Potamophila
Potamophila is a genus of Australian plants in the grass family.
The only known species is Potamophila parviflora. It is endemic to New [South Wales]. Common names include Hastings River reed.
This species is a reedlike aquatic perennial grass growing up to 1.5 meters tall. It grows in and next to rivers.
It is a member of the rice tribe, Oryzeae. Among its closest relatives are the wild rice species of genus Zizania.