The Marj is a tree found in semi-desert, sandy, dry climates. An Arab proverb says, "Reach out your hands and extract from the thorny Marj." Al-A'sha said: "And with that, the king's provisions were expert, encountering from them the thorny Marj." The scientific name for Marj is Leptadenia pyrotecnica. It is used to stabilize sandy dunes in confined areas. It is also good fodder for camels and other young animals.

The Helag is a tree that grows in the natural, sandy plain, widespread, especially in central Sudan. Its scientific name is Balanites aegyptiaca. It is one of the important natural plants. Almost all parts of the tree are used in daily life, and oil is extracted from it at a rate of 50%. The fruit oil is edible and tastes good, and the different parts of the tree contain steroids, which are used in many common medicines.

The Zarga is one of the non-thorny trees, like branches, and does not grow very tall. Its branches are found by the Nile and the banks because it needs water and rain. Its wood is strong and durable, which is why it is preferred for stakes and strong posts. Therefore, it is used for boat masts up to five cubits. It is used as fuel. There is a proverb: "The one who perfumes the way, your hand is the one that is full of the gathering." And it is described as "the way of the rain that is continuously collected," which is a metaphor for generosity. And by this, it was named Tarqa, between the slave poet or nicknamed for his saying: "Do not hasten to cry, a mourner, nor a prince, as they are in the house when they stand." The Arabs also say about it: "Tarqaa and all of them Tarqah." 55 Abdullah Abdul Rahman Al-Amin Al-Dhirir: The Arabic Language in Sudan. 2nd ed. Dar Al-Herm, pages 69, 70. 56 Abdullah Abdul Rahman Al-Amin Al-Dhirir: op. cit. p. 69. 57 Mohamed Ibrahim Iblis (Professor). Al-Masqiya, op. cit. p. 144. 58 Abdullah Abdul Rahman Al-Amin Al-Dhirir: The Arabic Language in Sudan, op. cit., pp. 70, 71. - 72 -- 73 -The Talab is a tree found in semi-desert, sandy, dry climates. An Arab proverb says, "Reach out your hands and extract from the thorny Marj." Al-A'sha said: "And with that, the king's provisions were expert, encountering from them the thorny Marj." The scientific name for Marj is Leptadenia pyrotecnica. It is used to stabilize sandy dunes in confined areas. It is also good fodder for camels and other young animals.

The Sunt is a tree that is very sensitive. If its branches are touched, its leaves fold and shrink, and it produces thorns, which is a natural defense mechanism.

The Salam is mentioned in the book "The Arabic Language in Sudan" as being used in a curse against a person: "May the Salam strike you for a long time." And from the words of Al-Hajjaj ibn Yusuf: "By God, I will bind you like the binding of the Salam." It is a tree that grows in dry desert areas. Its scientific name is Acacia ehrenbergiana. It is used as fuel and is used in many common medicines.

The Sayyal grows in a semi-desert climate, and its growth is on the banks and seasonal watercourses. It is widespread. It is a thorny tree, and it is proverbial for its thorns, its strength, and its height. It is bright white, gleaming through the green leaves. It is more patient with thirst than the umbrella, and it provides good food for sheep. The scientific name for Sayyal is Acacia tortilis subsp. radiana. It is used as fuel and is a good type of charcoal. The Prophet said: Abu Al-Abbas Ahmad bin Yahya recited to us: "O Sayyals of the palms in Al-Lawai, upon you from among the Sayyal is peace. And I am indeed seeking water whenever a dove is alone in your branches." 54 Abdullah Abdul Rahman Al-Amin Al-Dhirir: The Arabic Language in Sudan, 2nd ed. Dar Al-Herm, pages 69, 70. 55 Abdullah Abdul Rahman Al-Amin Al-Dhirir: op. cit., p. 69. - 72 -