Potamogeton lucens, or shining pondweed, is an aquatic perennial plant native to Eurasia and North Africa. It grows in relatively deep, still or slow-flowing, calcareous freshwater habitats.
Shining pondweed is a large plant with robust creeping rhizomes and long, terete, branching stems, typically up to 2.5 m but exceptionally to 6 m. The leaves are large, 75–200 mm (exceptionally more) long and 25–65 mm wide, 2-6 times as long as broad; as with the smaller P. gramineus, the leaves on the branches ...