I challenge anyone to walk this kilometre and not see a picture.
Dull and damp.
Rust sample shown is about 5mm. across.
The Barren Strawberry - Potentilla sterilis - has now fully opened. The tiny dry seed-head can be seen in the centre.
After a small gap of around a month, the Red dead-nettle - Lamium purpureum - has resumed flowering.
There are a few patches of Opposite-leaved Golden Saxifrage - Chrysosplenium oppositifolium - on a dryish bank. That gives a better opportunity for a picture. It's normally low and in wet areas.
The flowers are absolutely square.