Senegalia is a genus of flowering plants in the family Fabaceae. It belongs to the Mimosoid clade. Until 2005, its species were considered members of Acacia. The genus was considered polyphyletic and required further division with the genera Parasenegalia and Pseudosenegalia accepted soon after. Senegalia can be distinguished from other acacias by its spicate inflorescences and non-spinescent stipules. Plants in the genus are native to the tropical and subtropical areas of the world, occurring on the Australian, Asian, African and South and North American continents, as well as in Wallacea.

Senegalia montis-usti, previously known as, Acacia montis-usti only grows in a small area of Namibia from Bandberg to the southern Kaokoveld where it is mostly found growing on granite outcrops. It usually grows to about 5 meters in height and during summer it bears cream to yellow flowers.