It is found in slow-moving fresh water.

The specific epithet means 'eight-stamened'.

[1] This is a common plant in lakes and ponds.

It is known from Africa, Asia (Russian Far East, Mongolia, Korea, Japan, China, Taiwan, Pakistan, India, Nepal, Bhutan, Myanmar, Thailand, Vietnam (type), Indonesia (type of P. javanicus), and Papua New Guinea), and Australia (type of P.

This Alismatales-related article is a stub.