View upwards on an American Sycamore to show its characteristic bark. This one is 30 years old and perhaps as much as 20 meters tall. Picture was taken in <a href="https://en.wikipedia.org/wiki/en:Centerville,_Montgomery_County,_Ohio" class="extiw" title="w:en:Centerville, Montgomery County, Ohio">Centerville Ohio</a> USA.
<a href="//commons.wikimedia.org/wiki/User:Mundhenk" title="User:Mundhenk">Mundhenk</a>
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>