moss-covered bark of birch tree. close-up vertical photo

abstract aged backdrop background bark betula betulaceae birch birchen bulging bumpy close closeup coarse color colours corrugated covered cracked cracks detail detailed dry effect fragment furniture gnarled grained graphic gray green grey groove grooved grooves grown grunge image layer lichen material moss mosscovered mossgrown mossy old outer outside pattern patterned photo photography picture relief rind rough rugose shot silver skin streak streaked streaks structure structured surface textural texture textured timber tree trunk uneven vertical weathered wood wooden woody yellow yellowish