PICS: Invasive hyacinth still covering "e;about 40%"e; of Hartbeespoort dam - The South African

PICS: Invasive hyacinth still covering "e;about 40%"e; of Hartbeespoort dam  The South African ...

PICS:,Invasive,hyacinth,still,covering,"e;about,40%"e;,of,Hartbeespoort,dam