[Pondweeds: The Genus Potamogeton East of the Cascade Mountains of Oregon and Washington]

Alpine Pondweed, Northern Pondweed, Reddish Pondweed

Potamogeton alpinus

Synonyms: Potamogeton alpinus var. subellipticus, Potamogeton alpinus ssp. tenuifolius, Potamogeton alpinus var. subellipticus, Potamogeton alpinus var. tenuifolius

Inflorescence of Alpine Pondweed, Northern Pondweed, Reddish Pondweed: Potamogeton alpinus (Synonyms: Potamogeton alpinus var. subellipticus, Potamogeton alpinus ssp. tenuifolius, Potamogeton alpinus var. subellipticus, Potamogeton alpinus var. tenuifolius)

The photo above shows a close-up of the inflorescence of alpine pondweed as seen in a small stream that runs through Swampy Meadows on the western slopes of Mt. Adams........................September 6, 2008.

Alpine Pondweed, Northern Pondweed, Reddish Pondweed: Potamogeton alpinus (Synonyms: Potamogeton alpinus var. subellipticus, Potamogeton alpinus ssp. tenuifolius, Potamogeton alpinus var. subellipticus, Potamogeton alpinus var. tenuifolius)

The photo above shows a close-up of the inflorescence of alpine pondweed as seen in a small stream that runs through Swampy Meadows on the western slopes of Mt. Adams........................September 6, 2008.

Alpine Pondweed, Northern Pondweed, Reddish Pondweed: Potamogeton alpinus (Synonyms: Potamogeton alpinus var. subellipticus, Potamogeton alpinus ssp. tenuifolius, Potamogeton alpinus var. subellipticus, Potamogeton alpinus var. tenuifolius)

The photo above shows a close-up of alpine pondweed as seen in a small stream that runs through Swampy Meadows on the western slopes of Mt. Adams........................September 6, 2008.

Alpine Pondweed, Northern Pondweed, Reddish Pondweed: Potamogeton alpinus (Synonyms: Potamogeton alpinus var. subellipticus, Potamogeton alpinus ssp. tenuifolius, Potamogeton alpinus var. subellipticus, Potamogeton alpinus var. tenuifolius)

The photo above shows a close-up of the submergedstem leaves of alpine pondweed as seen in a small stream that runs through Swampy Meadows on the western slopes of Mt. Adams........................September 6, 2008. The leaves of this species are all similar in shape.

Paul Slichter