"Water hyacinth (Eichhornia crassipes) is a free floating (but sometimes rooted) freshwater plant of the family Pontederiaceae that has proven to be a significant economic and ecological burden to many sub-tropical and tropical regions of the world. Water hyacinth is listed as one of the most productive plants on earth and Water hyacinth shows logisitic growth as does another floating aquatic weeds. Water hyacinth has invaded freshwater systems in over 50 countries on five continents; it is especially pervasive throughout Southeast Asia, the southeastern United States, central and western Africa, and Central America’" (Jafari, 2010).
Jafari, N. Ecological and socio-economic utilization of water hyacinth (Eichhornia crassipes Mart Solms). Journal of Applied Sciences and Environmental Management, Vol. 14, No. 2. 2010. DOI: 10.4314/jasem.v14i2.57834