Lotad and its evolved forms have mouths resembling duck bills, which may be a pun on the duckweed.
The nitrates are used as food for algae and fertilizer for duckweed.
Aquatic vegetation is limited to a small number of ponds, and includes common duckweed, iris and water violet.
Duckweed is considered a carbon neutral energy source, because unlike most fuels, it removes carbon dioxide from the atmosphere.
It is one of several genera containing plants commonly called duckweed.
These nutrients may have triggered the duckweed's rapid expansion.
Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water.
Many small aquatic animals use plants like duckweed for a home, or for protection from predators.
