Warning

This information was published in 1966 in An Encyclopaedia of New Zealand, edited by A. H. McLintock. It has not been corrected and will not be updated.

Up-to-date information can be found elsewhere in Te Ara.

Potamogeton, three species of pondweed; from left to right, P. cheesemanii, very common in still water; P. ochreatus, in slow streams; P. pectinatus, in brackish water