Clematis: Please Help ID These 'Reds', 1 by DreamOfSpring

DreamOfSpring wrote:
Clematis #3. Early evening view. Note newly opened blooms on the far right, more mature flowers on the left. This really is the same plant, and while I realize cameras are famous for color 'tricks', the color change in this plant is stunningly obvious even to the naked eye, so much so that I found myself questioning if I had 2 different clematis planted in the same spot. (No, as there were dozens of blooms of the one color the night before and [only] dozens of the new color the following morning.)