environmental
annual rings
bark
cavity
circle
closeup
cobwebs
dead
decomposing
decomposing wood
dry
empty
environment
fallen
foliage
forest
green
hole
hollow
hollow tree
inner
insect
inside
log
logs
lumber
lying
moss
natural
nature
nest
old
park
pattern
plant
rot
rotten
rough
stump
timber
tree
trees
trunk
weathered
wild
wilderness
wood
wooden
woodland
woods