Ipomoea aquatica is a semiaquatic, tropical plant grown as a vegetable for its tender shoots and leaves. It is found throughout the tropical and subtropical regions of the world, although it is not known where it originated. This plant is known in English as water spinach, river spinach, water morning glory, water convolvulus, or by the more ambiguous names Chinese spinach, Chinese convolvulus, swamp cabbage or kangkong in Southeast Asia. It is known as phak bung in Thai, rau mung in Vietnamese, trokuon in Khmer, kalmi shak in Bengali, kangkung in Malay and Indonesian and hayoyo in Ghana. In Bangladesh and West Bengal, it is known as kolmishak and stir-fried preparation of the leaves is a very popular dish----Wikipedia
In West Bengal, this leafy vegetable is stir fried with eggplant, sweet potato & plantain. This "Kolmi Shaak er Ghonto" recipe is my Grand mom's recipe, after her , my mom adopted this recipe from her, and I adopted from my mom. This recipe is little lenthy in process, but tastes really good. This dish goes best with steamed plain rice. Coconut & fried vadi is added on the top of the curry to giev extra taste to the dish.