A carpet of tiny Hydrocotyle sulcata, with its ‘3-leaf clover’-like leaves, growing on the shores of Lake Koitiata. Photo: Lara Shepherd

A carpet of tiny Hydrocotyle sulcata, with its ‘3-leaf clover’-like leaves, growing on the shores of Lake Koitiata. Photo: Lara ShepherdRead more

A carpet of tiny Hydrocotyle sulcata, with its ‘3-leaf clover’-like leaves, growing on the shores of Lake Koitiata. Photo: Lara Shepherd