Hello ! I ordered seeds of Atragene ochotensis ( Clematis ochotensis ) from Alexandra Berkutenko in NE Russia some years ago, and the flowers look very different from the pictures you get if you google Clematis ochotensis on the internet, and I wonder if you think it's a misnomer ? It looks like Clematis alpina I think.
Any other suggestions?
It flowers more profusely in late May- early June, with just an occasional flower in late summer.