Family: Potamogetonaceae
long-leaf pondweed, long-leaved pondweed
[Potamogeton fluitans auct. non Roth]
Brenton Butterfield
Brenton Butterfield
University of Wisconsin - Madison (WIS-VP)
Etymology: Potamogeton: from Greek potamos, "a river," and geiton, "a neighbor," because of the habitat
Plants: perennial, submersed aquatic; stems to 7' long; branched rhizomes
Leaves: alternate, entire, with prominent midvein; submersed and floating narrow, lance-like, on long stem; stipules free of leaf axils, disintegrate
Flowers: green-brown, small; inflorescence dense cylindrical spike, above water
Fruits: oval, dry seed with a lumpy dorsal ridge and a short beak
Habitat: usually flowing water >40" deep
Conservation Status: Native
Plants: perennial, submersed aquatic; stems to 7' long; branched rhizomes
Leaves: alternate, entire, with prominent midvein; submersed and floating narrow, lance-like, on long stem; stipules free of leaf axils, disintegrate
Flowers: green-brown, small; inflorescence dense cylindrical spike, above water
Fruits: oval, dry seed with a lumpy dorsal ridge and a short beak
Habitat: usually flowing water >40" deep
Conservation Status: Native
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 7, Wetland Indicator = OBL USDA Plants Database: Federal Distribution and detailed information including photos
Brenton Butterfield
Brenton Butterfield
Brenton Butterfield
Brenton Butterfield
Brenton Butterfield
Brenton Butterfield
Brenton Butterfield
Brenton Butterfield
Brenton Butterfield
Brenton Butterfield
Brenton Butterfield
Brenton Butterfield
Brenton Butterfield
Brenton Butterfield
Brenton Butterfield
Robert W. Freckmann
