I guess the first time seeing it I thought of "some kind of bindweed", purely by the nature of how it "attached" to elevate itself. You can see this from the photos below. But I soon thought this is something more special with such a dynamic shape to the leaves, and the almost translucency of the flower, and the gentle sweep back of the petal. I guess the heart shape leaves denotes "Love" and the little streams of flowers are like rows of "charms" on nature's bracelet.
I found some on the verges of the Clawthorpe Road just below Rowley Copse, there are a couple of fine examples (13th June 2021). I have also seen this near to Warton Crag (little car park just after turning up by side of famous named pub (George Washington).
Black Bryony on Slape Lane 22nd June 2021
Black Bryony on Slape Lane 22nd June 2021
Black Bryony on Slape Lane 22nd June 2021
Black Bryony on Slape Lane 22nd June 2021
Black Bryony on Slape Lane 22nd June 2021
Black Bryony on Slape Lane 22nd June 2021
Black Bryony on Slape Lane 22nd June 2021
Black Bryony on Slape Lane 22nd June 2021
Black Bryony on Slape Lane 22nd June 2021
Note Green train of leaves off to the left and the Purple or Dark train of leaves off to the right
(Below) from today, some of the berry photos