Rivers of ThailandPhotographs of rivers in central ThailandPicking water convolvulusWoman harvesting water convolvulus ('morning glory')Palm treeRiverside palm tree and morning glory plantsPa SakView across the Pa Sak river at AyutthayaTagsChinese spinach, Ipomoea aquatica, agriculture, boats, plants, swamp cabbage, water convolvulus, water morning glory, water plants, water spinach, women, palm trees, trees, Asia, Ayudhya, Ayutthaya, Ayutthaya province, Pa Sak, Phra Nakhon Si Ayutthaya, South-East Asia, Thailand, barges, long-tail boats, motorboats, rivers