Ferlo Desert

[3] It forms part of the region of Djourbel which extends to within 45 miles (70 km) to the east of Dakar to the west and south of St Louis, known as "Baol" to the locals.

The plain is crossed by the courses of numerous tributaries of the Senegal River, which for most of the year are dry and fill with water only occasionally during the rainy season (July to September).

The wet season, in the period from July to September, is short and brings irregular rainfall brought by the humid air masses from the Gulf of Guinea.

Leguminous plants such as Zornia glochidiata and Alysicarpus ovalifolius and Graminaceae such as Cenchrus biflorus, Dactyloctenium aegyptium, Chloris prieurii, Eragrotis tremula, Aristida mutabilis and Schonefeldia gracilis have been observed.

[7] Spate irrigation has since developed in the region, and temporary ponds may cover an area of several hectares during the wet season from July to October.

Senegal. The Senegal River defines the northern border. The Ferlo desert covers most of Northern Senegal, including the Matam region and eastern Saint Louis and Louga regions