Longevity reputation
Their leaves are evergreen. Each tree has only two pairs of leaves, which are wide and flat. The widest pair was found in the flache area. It can reach the height of an adult man alone. But how does it make its life so long? Well, their leaves can grow 12-14cm every year, and the leaves lie flat on the ground. Even when the wind is strong, they can't hurt the soil below p>
It can not only resist the erosion of the soil by the wind, but also absorb enough water by virtue of its huge surface area, which is also a necessary condition for them to survive! But there are other reasons why such a large leaf can remain unchanged for a hundred years. Firstly, the desert is close to the Caspian Sea, and a large amount of sea fog can keep its water. Secondly, the roots deep into the sand can also absorb a certain amount of water, so they can be vigorous all year round p>
Leaves do not wither
There are only four leaves in this plant, including two real leaves. These two leaves will not wither. They will only grow and grow. In other words, their life is the life of the whole plant. Their leaves have a growth zone. The nearby cells have a certain meristematic ability and will continue to produce signal tissue, so that the whole leaf will become larger and larger. In fact, their front end is also aging, and the old part has long disappeared. However, there will be new tissues as substitutes in the growth zone, so we may misunderstand that they will not be damaged. That's the secret that it won't grow old p>