A genus of aquatic plants commonly known as waterweeds, widely used in aquariums and found in freshwater environments.
Scientific name derived from Greek elodes (marshy, swampy), coined in the 18th century for this aquatic plant genus that thrives in wet environments.
Elodea is so successful at surviving in new places that it's become an invasive species in Europe and Asia—it escaped from aquariums and now chokes waterways because it has almost no natural predators.
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