Erica tetralix
The principal tree species in this form of Bog woodland is Scots pine "Pinus sylvestris". Pine bog woodland types are likely to be intermediate in character between NVC type W18 "Pinus sylvestris – Hylocomium splendens" woodland and more open mire types such as M18 "Erica tetralix – Sphagnum papillosum" mire or M19 "Calluna vulgaris – Eriophorum vaginatum" blanket mire.