The shapla (Nymphaea nouchali) is the national flower of Bangladesh

The shapla (Nymphaea nouchali) is the national flower of Bangladesh. Nymphaea nouchali is considered a medicinal plant in Indian Ayurvedic medicine under the name ambal; it was mainly used to treat indigestion.[12] Recent experiments have confirmed that it has medicinal qualities as an antihepatotoxic and antidiabetic.[13][14] Like all waterlilies or lotuses, its tubers and rhizomes can be used as food items; they are eaten usually boiled or roasted. In the case of N. nouchali, its tender leaves and flower peduncles are also valued as food