- Scientific Name: Spirodela polyrhiza (L.) Schleid.
- Common Name: Giant Duckweed, Big duckweed
- Group: Monocot
- Family: Lemnaceae (Duckweed family)
- Wetland Indicator Category: OBL
- Floating (free-floating)
- standing and slow-moving ditches, ponds, lakes,
rivers
- Native
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