Some have stood for thousands of years, yet trees enjoy little legal protection. Campaigners aim to change that. A dark green tree stands on the north side of the medieval stone church in Defynnog. The tree is broader than it is tall and has divided into two quite separate trees over the centuries.
What Is the Oldest Tree in the World?
Dendrochronology - Wikipedia
Along the Black River in North Carolina, bald cypress trees have been quietly growing for millennia. Quite literally so: Scientists recently found trees over 2, years old - including one that is at least 2, years old. That makes it the fifth-oldest known non-clonal tree in the world. Utah's Pando , an ancient quaking aspen forest, reproduces asexually, by cloning itself from an 80,year-old root system. Another nearby tree was found to be 2, years old - and geoscientists believe that more bald cypresses Taxodium distichum in the Three Sisters Swamp could be the same age or even older. The top 10 oldest known trees in the world.
List of oldest trees
Great Basin Bristlecone pines Pinus longaeva are remarkable for being the oldest non-clonal species on the planet. This strange tree, shaped by the wind, snow, and rain has survived over thousands of years, overseeing the rise and fall of great empires, growing through ice-ages and catastrophic volcanic eruptions. But their ability to survive these harsh environments and adverse growing conditions is exactly their secret to great longevity. Bristlecone pines in Great Basin National Park grow in isolated groves just below the tree-line. The conditions in which they live are harsh with temperatures that drop well below freezing , a short growing season, and high winds that twist the trees into almost human-like forms along their limestone ridges.
When you look at the cross-section of a tree, you see a series of concentric rings. One ring is the layer of wood produced in one growing season. One annual ring is one dark ring and one light ring together. Counting the rings can tell us how long the tree has lived; more rings means an older tree.