Japanese Morning Glory - Black Holes
I grew this awesome vine from a seed mix I bought from an eBay vendor who seems to have stopped selling out of Japan. It has the darkest flowers I have ever seen on a morning glory flower. That is why I called it Black Holes after the astronomical black hole phenomena. The flower photographs with some blue in it, but in real life, it is darker than the pictures:
The leaf is a small "orthodox" shape, unvariegated but does have a dark edge.