Clematis: need ID, 1 by ClematisGuru

ClematisGuru wrote:
my pleasure. my knowledge is always layman knowledge, passed to me via books or lectures, or online, so passing it along is a pleasure. some other terms you will hear are
central bar (the color stripe or variation down the middle of a sepal)
margin (the outer edge of a sepal, as in wavy, or the coloration around the outer edge)
boss (the central area of reproductive organs of the plant including the stamens, anthers,etc)

these are the main terms surrounding the bloom formation of the sepals. did you see my cool duchess of e bloom that is all greenish tie dye sepals????? attaching it .....i am enthralled with it and will photograph it again as it opens.