What is the oldest tree in the world?

"Methuselah, a bristlecone pine tree from California's White Mountains, is thought to be almost 5,000 years old—and the oldest non-clonal tree in the world. The exact location of the gnarled, twisted Methuselah is a Forest Service secret, for its protection. Apr 26, 2014"

This one may or may not still be alive:

"The world's oldest recorded tree is a 9,550 year old spruce in the Dalarna province of Sweden. The spruce tree has shown to be a tenacious survivor that has endured by growing between erect trees and smaller bushes in pace with the dramatic climate changes over time."