I took this photo of a Buttercup on Sunday. I'm not sure what species it is. It had this cool little flower fly perched on it that I'm working on an ID for too. (Update thanks to BugGuide: it's likely Toxomerus marginatus, a type of Syrphid fly.)
Here's the fly blown up.
And for those of you who were willing to scroll down and read more. Here's what I think of every time I see a Buttercup. Enjoy the video.