Saw this at work. Nice enough flowers though not typically grown for them. I don’t actually think I’d seen them in person before this. Very clear that its more closely related to Morning Glories than to regular Potatoes.
I hope I get flowers on my own plants this year, and that they’re a similar light colour against the dark leaves of ‘Blacky’.
All Andrew's Plants 
That is a pretty flower!
There's nothing fancy about the flower but I love the composition of the image – a solitary flower on a bed of differently-hued leaves.