Thanks, Andrea. Meadows, especially in the late summer, are delightful, as you say.
The flowers of the various types of cow-parsely, ground-elder, hogweed and angelica are often too similar for an amateur like me to differentiate, but in this case I'll go for one of the many species of angelica, on the basis of a description I came across "flowers often tinged with pink". I don't think any of the others show this variation.
No doubt Bjørn will put us right.
*Later* He already has - I was a little slow there, but I'm glad I made the correct ID. Thanks, Bjørn.