Just thought I put this pic up because it is unusual. My neighbor gave it to me years ago and I've never seen another. Known as Tube or Wood clematis, possibly c. heracleifolia. Makes a neat, sturdy shrub about 4'x4'. I don't prune it.
This looks more like some kind of hydrangea.
It's a nice specimen of Clematis heracleifolia.
Wow! never saw this before. Now I want it!!