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JC Schou   cc-by-nc

Zannichellia (Horned Pondweed) is a genus of herb in the family Potamogetonaceae. They are native to The Contiguous United States, Canada, and Alaska.

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EOL has data for 15 attributes, including:

Known occurrences, collected specimens and observations of horned pondweed. View this species on GBIF