I spent a wonderful afternoon exploring a couple of the local bogs here in Aberdeenshire, Scotland, with a fellow UK CP grower. Here's a few pictures I took:
We saw mostly D. rotundifolia:
This was one of the few D. anglica we seen. They had a preference to grow directly on the peat, rather than amongst the Sphagnum moss which D. rotundifolia preferred.
There was lots of different varieties of Sphagnum moss: