Biology
What is the oldest living tree?
The oldest known living tree is Old Tjikko, a Norway spruce in Sweden whose root system has been dated to about 9,550 years. The trunk you see is much younger; the roots keep sprouting new ones.
Source: Umeå University (2008).
Context
By root age, Old Tjikko, a Norway spruce in Sweden. Umeå University dated its root system to about 9,550 years in 2008.
The trunk you can see is much younger. The roots keep putting up new trunks as old ones die, so the organism is ancient while the visible tree is not. Bristlecone pines hold the record for a single continuous trunk.
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