explain about the plants of Sahara desert
Answers
Due to the paucity of water, the Sahara contains almost no flora. From the Mediterranean vegetation which covered the Sahara mountains before they became a desert, only laurel and cypress trees remain in the region near gueltas.
Plants were adapted to the climate to reduce evaporation and increase water absorption: very small leaves, very long roots which can reach the most humid layers of soil ( acacias, tamarisks), water accumulation in the tissues and leaves covered with wax (succulent), lose their roots and let themselves be driven in order to absorb the atmosphere humidity (roses of Jericho), lose their leaves when it is arid and make them grow when it is humid (zilla), make their leaves uneatable ( Sodome apple trees),…
We can find some isolated bushes (tamarisks, acacias) in bed rivers. The rare showers can bring about some meagre meadows, Acheb, wanted by nomads.
Date palm trees, introduced by Arabs, is requisite for the existence of humans in the oasis: dates are very energetic food, trunks are used to make beams, leaves are used to make baskets, ropes, mats and covers for huts,… its preserves fruit trees against the sun.
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