Old Tjikko is a tree in Fulufjäll in Sweden which is claimed to be the oldest tree in the world, by age of its root system. The visible part is much younger. It is a Norway spruce.
<a href="//commons.wikimedia.org/wiki/User:Karl_Brodowsky" title="User:Karl Brodowsky">Karl Brodowsky</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>