Family: Potamogetonaceae
spotted pondweed
from USDA Plants website
Paul Skawinski
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
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
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 10, Wetland Indicator = OBL WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin listed species including state and federal status, photos, etc. USDA Plants Database: Federal Distribution and detailed information including photos
Paul Skawinski
Paul Skawinski
Paul Skawinski
Paul Skawinski
from USDA Plants Website