Blue Morning Glory

The calices are clearly that of Ipomoea tricolor and nothing else.

Got it! Thanks

Ipomoea nil

Ok thanks

Hmm, I think kimberlee got it right. it is indeed morning glory. leaves look like it, and the closed trumpetlike flower too

Morning glory was wrong. This is a clematis.

Yes indeed.
Thank you Kymberlee

I think it's a morning glory.