Description: English: Ito, Y. (2013) Aquatic Plant Surveys in Asia, Australia, Europe, and N. America. Bunrui 13: 47-60. Date: 26 November 2007, 09:28:33. Source: Own work. Author: Ruppia2000.
Description: English: Aponogeton natans, leafs and flower. Yu Ito (2013d) Aquatic plant surveys in southwestern India. Bulletin of Water Plant Society, Japan 100: 64-68. Date: 26 November 2007, 09:29:15. Source: Own work. Author: Ruppia2000.