Some specimens in the Lahaul-Spiti region are over 2,000 years old .
Researchers use their rings to reconstruct weather patterns dating back to the 4th century. 3. The Australian Imposter ( Polyscias murrayi ) pencil cedar
During the British colonial era in Kenya, no pencil factories were built locally. Instead, massive "pencil slat mills" were constructed to export the raw wood to Europe and India. Some specimens in the Lahaul-Spiti region are over
Today, it is considered threatened in parts of Ethiopia and Saudi Arabia due to dieback and climate shifts. 2. The Himalayan Time Capsule ( Juniperus polycarpos ) pencil cedar
In the high-altitude deserts of the Himalayas, this tree becomes a literal living record of history.