White-Stem Pondweed

(Potamogeton praelongus)


White-Stem Pondweed has a zig-zag stem with alternately arranged wavy green leaves.


White-Stem Pondweed has a zig-zag stem that is thin and sparingly branched. Wavy green leaves are alternately arranged, translucent, two to 11 inches long, and one-half to nearly two inches wide. They often have a yellow midvein with multiple lateral veins prominent as well. No floating leaves are produced. There are white stipules at the base of the leaves.

Commonly found in lakes and streams, White-Stem Pondweed grows in clear, deep water. It tends to grow in more basic (not acidic) waters. The seeds require a cold period to promote germination.


White-Stem Pondweed can be found in the northern half of the United States.


Creeping rhizomes, seeds