Lichen growing on tree trunk an indicator of clean air Forest of Dean Gloucestershire England UK

---

Size: 3425px × 5137px
Photo credit: © Chris Howes/Wild Places Photography / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: britain, british, dean, england, english, europe, forest, gb, gloucestershire, indicator, kingdom, lichen, species, tree, trees, trunk, uk, united, woodland, woods