The oldest known is the Methuselah Tree, over 4,600 years and still growing ... Many of these ancient trees are more dead than alive, showing broad spans of exposed heartwood and dead tops.

While half of one appears dead and bare ... most important tree roots are within six to 18 inches of the soil surface. Divin cautions that, while city water will keep plants alive, it doesn ...

Bristlecones that look almost dead may have been ... still be called a living tree? Well, if reproductive ability is a prerequisite to being considered alive, then the answer is a resounding ...