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From what I found its scientific name is called called Ipomoea aquatica. Is it the same as what you have in the US.

It is and it is not. Apparently, there are a lot of different kinds of plants that are all falling under the morning glory category. The one we mostly know and is grown as a flower is not edible. Here is a wikipedia entry :)
https://en.wikipedia.org/wiki/Morning_glory

We always learn more!

Morning glory
Morning glory (also written as morning-glory) is the common name for over 1,000 species of flowering plants in the family Convolvulaceae, whose current taxonomy and systematics are in flux.