Potamogeton pulcher Tuck.
Family: Potamogetonaceae
spotted pondweed
Potamogeton pulcher image
from USDA Plants website  
Etymology: Potamogeton: from Greek potamos, "a river," and geiton, "a neighbor," because of the habitat
Plants: perennial, submersed aquatic, stems and leaves with prominent black spots; slender rhizomes
Leaves: alternate, entire, with prominent midvein; floating, heart-shaped base; submersed, leaves lance-like, wavy edges; fibrous stipules free of leaf axils
Flowers: green-brown, small; inflorescence spike
Fruits: dry seed with 3 sharp ridges
Conservation Status: Endangered
Potamogeton pulcher
Potamogeton pulcher image
from USDA Plants Website  
Potamogeton pulcher image
Paul Skawinski  
Potamogeton pulcher image
Paul Skawinski  
Potamogeton pulcher image
Paul Skawinski  
Potamogeton pulcher image
Paul Skawinski  
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