Before revision: Water-clover ( Marsilea vestita ) Water lettuce (Pistia stratiotes) Water hyacinth (Eichhornia crassipes) Some areas of the United States do not allow certain of these plants to be sold or kept, as they have become invasive species in warmer areas of the country, such as Florida and California.
After revision: Frogbit ( Hydrocharis morsus-ranae ) Water lettuce (Pistia stratiotes) Water hyacinth (Eichhornia crassipes) Some areas of the United States do not allow certain of these plants to be sold or kept, as they have become invasive species in warmer areas of the country, such as Florida and California.