UNKNOWN FLOWERS

I've asked this before but no one seems to know the answer. I guess I'll have to bestir myself and take some to the local garden club or something if no one recognizes these flowers.


These flowers are so thick, I thought this was a bush last year. But over the winter they died down to some flower stems. Nearly this entire space was bare. Below are a couple of closeups of the blossoms.





Anybody with any idea of what they are? I like them and sure would like to put a name to them!