Talh is an emblematic species for local communities and one of the rare tree that can grow in desert. This species is surprisingly flowering at the hottest moment in the year, becoming cover of melliferous yellow-cream flowers during August despite the harsh climate conditions. This species includes four accepted varieties, but only one present in Saudi Arabia: Vachellia gerrardi var. najdensis (Chaudhary) Ragup., Seigler, Ebinger & Maslin. Identifying the different species of Vachellia is often challenging in the field, as morphological characteristic used for identification can be variable between individuals, not always visible, and the species may be confused—especially since AlUla County lies in a contact zone where the ranges of several species overlap. Habitat characteristics and field experience can help identification, but these taxa remain difficult to distinguish (one single local species name can refer to several species). Key species, melliferous, ecological restoration

Medicinal use

Palatable; Edible for birds; Melliferous

Provides browse, fuelwood, charcoal, fencing material, and shade. Acacia bark, gum, leaves, or pods are used traditionally for medicinal and domestic purposes; flowers are important to bees.