![](http://www.alamy.com/thumbs/6/3C036BFA-AF50-4D54-BAE9-2BCE55D0561E/AXJFP4.jpg)
lichen on the tree is a sign of healthy, old forest.
Size: 5315px × 3543px
Photo credit: © Eirik Grønningsæter / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: coniferous, eirik, epiphyte, forest, green, groenningsaeter, grønningsæter, hanging, lav, lichen, moss, skjegglav, symbiosis, urskog, wood