I have a clematis growing in my garden that I have not planted! There was not a clematis growing there when I planted my garden. I have several clematis growing around the area but nothing like this one. It is white with pink stamens (I think that's what they're called). The 5 petals are all white. This is the third year it has been growing and it has two stems growing up with only a flower on each one. I would attach pictures but I don't know how to do this at this time. Can anyone help me identify the clematis and/or how it got to be? I would appreciate any feedback that I can get!