The striking colour of a birch tree in Potter’s Field Park, London. The tree exists in most of the northern hemisphere and figures into the myths of numerous cultures. I’m not sure if it’s a silver, downy, or other birch or if one can even tell by just the bark alone. If you know, comment below. I’m also curious why they only occasionally have this electric colour. Again if you know, please share. In researching this post I did learn that the characteristic horizontal marks of the tree are called lenticels, which I didn’t know before.