Vachellia farnesiana, also known as Acacia farnesiana, and previously Mimosa farnesiana, commonly known as sweet acacia, huisache, or needle bush, is a species of shrub or small tree in the legume family, Fabaceae. It is deciduous over part of its range, but evergreen in most locales. The species grows to a height of 15–30 feet (4.6–9.1 m) and grows multiple trunks. The base of each leaf is accompanied by a pair of thorns on the branch. Its flowers are used in the perfume industry.