Small channel, overgrowth with invasing aquatic plant, water hyacinth

Small channel, overgrowth with invasing aquatic plant, water hyacinth. Concrete banks with handrails, riverbed of small canal at Bangkok suburb area, Bang Chak district. Water surface completely covered by green leaves of Eichhornia crassipes. Tropical tangle at waste ground on left side, some solid fence and buildings on right side.