That is a fairly distinctly different looking flower from any I've seen. The petal width to length ratio proticularly.
I'm a newbe at growing pings, but I've been looking at photoes and at plants for a long time and that just doesn't line up with anything I've seen. It's oviously not a white varient because it has pigment all over the place in fine details. Otherwise, the shape fits best with some of the purple flowering species, which really does not may sence.