[5] Vegetation is extremely sparse in the hamada landscape due to the heavily weathered soil.
A native species of tree, Vachellia tortilis (known locally as samr)[6] is well adapted to the desert environment and one of the most common forms of vegetation in the country.
[7] Shallow depressions referred to as rawdat constitute a more varied selection of plants since rainwater run-off is more likely to accumulate.
In the south of the peninsula, where groundwater is scarce, Panicum turgidum and V. tortilis grow in the wind-blown soils.
[7] Vegetative distribution in the south is mostly concentrated in rawdas and in wadis fed by run-off from nearby hills.