More on Dungeness scrub
Another tree that grows strangely at Dungeness is blackthorn Prunus spinosa. Like the oak this tree is represented by very stunted horizontal plants, but it is a more frequent species. Its long thorns presumeably give it protection from grazing. They tend to grow where the shingle surface is closer to the water table, either due to gravel extraction, natural hollows, or around the margins of the beach.
