Morning glory

I am very familiar with Ipomoea indica in it's various forms and although there is only the corolla to go by , if I had to bet my life savings on whether this is Ipomoea indica or not, I would say without hesitation that it is Ipomoea indica.

This is a morning glory bloom, Ipomoea sp.. Here is a site about invasive species of South Africa. Ipomoea indica is a morning glory that is invasive, but there are not enough photos to say this is that bad one. :)