Whilst birding the Abha area I came across some Indigofera spinose in dry wadi bottoms with scattered acacia tress in the mountains. Indigofera spinoseis a dwarf shrub that is widely distributed in arid areas and tolerates heavy defoliation and drought. The normally occur in semi-desert grassland, where they are often common as well as drier Acacia deciduous bushland with 150–600 mm of rainfall. They are an intricate shrub growing up to 50 centimetres tall with the young stems densely covered with stiff appressed white hairs and the older stems glabrescent and often corky at the base.