Morning Glories: ID conformation Please, 1 by gardengus

gardengus wrote:
I was about to ask ''if'' this was a morning glory and what type, then I saw two other threads on flowers that look like this.
So my question is this a morning glory called pandurata?
or do I have something else?
The reason for my confusion was it comes back every year and all the morning glories I have ever grown are annuals.
I did read the other threads and now understand some have tubers and come back.