PRUNELLA

Self-heal, All Heal, Blue Curls, Wound Wort, call it what you will, we came across carpets of them in the oak woods, rivalling the bluebells with the intensity of their colour. I don't know which prunella this is, but it's not the much humbler variety that grows in my garden.

CORRECTION!  IT'S ACTUALLY A BUGLE!  Thanks, Mother Shipton