These habitats have a good deal in common as measured by the zonation of the vegetation found associated with them. Under lowland conditions in Britain Lolium perenne, Trifolium repens and Poa annua appear to be the most abundant spp. found on the more heavily trodden part of the road verge or pathway. Under conditions of lower soil fertility, such as those normally associated with heather and other moorland vegetation, the most abundant constituents of the road verge habitat are Agrostis tenuis, Poa annua and the fine-leaved fescues.