A watery problem and solution
According to a 2013 United Nations Environmental Protection report, a water hyacinth plant releases more than 3,000 seeds every year and, because its roots are floating, it does not need to be in shallow water to survive. Water hyacinth has moved rapidly across South America, parts of the United States, Africa and Asia, and seems to have found a happy home in Cambodia, especially on the northern edge of the Tonle Sap. …
Khmer Time Stuff
http://www.khmertimeskh.com/news/26219/a-watery-problem-and-solution/