Killi
Aquatic plant Species of the World

Pellaea





Phyllanthus
fluitans


Physostegia
purpurea

Pilularia
americana



Plagiochila



Pogestemon erectus
erectus
deccanensis


Polygonum
barbatum


Polypleurum





Proserpinaca
palustris

"Mermaid weed"








Encyclopedia Aquatica