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Zannichellia palustris (Horned Pondweed) is a species of perennial herb in the family Potamogetonaceae. They have a self-supporting growth form. They are associated with freshwater habitat. They are native to Alaska, Mata AtlâNtica, Paraná, The Contiguous United States, Rio Grande Do Sul, North America, Canada, and Eastern North America. They have simple, broad leaves. Individuals can grow to 0.38 m. They have unisexual flowers.

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EOL has data for 29 attributes, including:

Known occurrences, collected specimens and observations of Horned Pondweed. View this species on GBIF