Type: plant. Habitat: mixed hardwood. Natural history info: Sunscald and frost cracking can occur through rapid temperature changes that drop below freezing. When the temperature of bark increases, growth can be triggered, so when the temperature drops again, rapid freezing can occur and the inner bark tissues can die.
The result is rarely fatal for trees, but does leave a scar. I found it interesting that you can see the color of the tree beneath the inner bark. I like how the angle of the shot draws the eye up the tree.