[Duckweeds: The Genus Lemna in the Columbia River Gorge of Oregon and Washington]

Common Duckweed, Lessser Duckweed, Water Lentil

Lemna minor

Common Duckweed, Lesser Duckweed, Water Lentil: Lemna minor

The photo above shows duckweed along with the larger leaves of floating pondweed (Potamogeton natans) as seen in a canal along the Willard Springs Trail in Conboy Lake National Wildlife Refuge.........August 17, 2007.

Paul Slichter