Jalajil or Jolajil (Arabic: جلاجل) is a city in the Sudair area, Saudi Arabia. It is located north from Riyadh (about 180 km) and around 45.29° - 25.41° The name Jalajil was taken from ”Jaljalah" (Arabic: جلجلة), which means trickling of water and its movement between the rocks of the valleys. Jalajil was mentioned by Yaqout Al-Hamawi in the Mu’jam Al-Buldan and said: “It is water that the Arabs bring down in the summer, as they usually do.”
In the eleventh century it was one of the most powerful territories in Sudair region as mentioned by Abdullah bin Khamis. In the Al-Yamamah dictionary, he said that Jalajil was established in the year 700 AH, which was the country of the emirate in the time of Sheikh Muhammad bin Abd al-Wahhab, scholar of the third century AH.
25°40′N 45°27′E / 25.667°N 45.450°E
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Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction