I purchased this clematis last year from Lowes and it was supposed to be a Jackamani. Well, it bloomed and it is a white variety with a gold boss and yellow stripes. I looked through John Feltwell's book 'Clematis for all Seasons' and still have no idea what it is. Anyone have any idea to help me out so I know how to treat it (prune it, that is).

Front of clematis:

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Back of clematis:

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