In east Africa, the nefarious invader arrived with Belgian colonists in Rwanda, who liked the look of its glossy leaves and delicate purple flowers floating in their garden ponds. But by the 1980s, it had slipped out of Rwanda via the Kagera river and made its way downstream to Lake Victoria.
There, with no natural predators and perfect temperature conditions, the plant began gobbling up open space, choking off fishing routes and providing a new habitat for disease-carrying mosquitoes. This invasive plant was reviled for clogging rivers but now it’s helping provide cleaner energy and protect health.
Read full article: The Guardian