By Michael Reilly in the USA:
Ancient tree (almost) older than dirt
Tree in California survives for more than 13,000 years
updated 12:47 p.m. ET Dec. 23, 2009
At the top of a small hill in suburban southern California, there is what appears to be a thicket of stunted, gnarled oak trees wedged between a pile of boulders. A passerby would likely miss this ancient, biological wonder.
See also here.