[The Pondweeds of Mt. Adams and Vicinity]

Grassy Pondweed, Variable Pondweed, Variableleaf Pondweed, Variable-leaved Pondweed

Potamogeton gramineus

Synonyms: Potamogeton gramineus var. gramineus, Potamogeton gramineus var. maximus, Potamogeton gramineus var. myriophyllus, Potamogeton heterophyllus

Grassy Pondweed, Variable Pondweed, Variableleaf Pondweed, Variable-leaved Pondweed: Potamogeton gramineus (Synonyms: Potamogeton gramineus var. gramineus, Potamogeton gramineus var. maximus, Potamogeton gramineus var. myriophyllus, Potamogeton heterophyllus)

What appears to be grassy pondweed growing in a shallow pool in Swampy Meadows on the western flanks of Mt. Adams...........August 30, 2012.

Grassy Pondweed, Variable Pondweed, Variableleaf Pondweed, Variable-leaved Pondweed: Potamogeton gramineus (Synonyms: Potamogeton gramineus var. gramineus, Potamogeton gramineus var. maximus, Potamogeton gramineus var. myriophyllus, Potamogeton heterophyllus)

What appears to be grassy pondweed growing in a shallow pool in Swampy Meadows on the western flanks of Mt. Adams...........August 30, 2012.

Paul Slichter