When walking through the forest you will see many different ferns with mysterious names such as Adder's-tongue, Buckler, Lemon-scented spleenwort and Hart's tongue.  The invasive Bracken cloaks vast areas of heathland and often seems to be spreading beyond control.  In days gone-by, bracken was used as roofing material, bedding for animals, and sometimes it was chopped to mix in with the animals feed.