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

Close-ups of the aquatic stem leaves and inflorescence (which extends above the water surface) of what may be leafy pondweed as seen in shallow waters at the edge of the Deschutes River at its mouth........July 17, 2009.

Two views of what might be leafy pondweed as seen in the permanent pothole pond at Dancing Rock, a Friends of the Gorge property in the eastern Columbia River Gorge.......July 17, 2009.