Dead tree trunks in Birch Creek Park near Somerville Lake. Texas, September 17, 2011
Trunks of birch trees near Beech Loop in F. R. Newman Arboretum. Ithaca, New York, October 11, 2005
Dry tree trunk in Birch Creek Unit of Somerville Lake State Park, July 14, 2013
Trunk of river birch (Betula nigra) in Lick Creek Park. College Station, Texas, December 18, 2011
Birch trunk enveloping a tomb of Nikolskoe Cemetery of Alexander Nevsky Lavra. Saint Petersburg, Russia, October 18, 2016
Rotten trunk of a birch tree filled by roots near Lisiy Nos, west from Saint Petersburg. Russia, February 18, 2017
Malformed trunk of a birch tree near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
Multiple gnarls on a birch trunk near Lisiy Nos, west from Saint Petersburg. Russia, March 3, 2017