HUISACHE - (Vachellia farnesiana) Huisache is a native Texas plant also known as Sweet Acacia. It is a thorny shrub or small tree with fragrant yellow flowers, gray-green leaves, and black, cigar-shaped pods. It's name comes from the Nahuatl word for "many thorns," Huisache is valued for its flowers in the perfume industry. It's considered an aggressive species, forming thickets and limiting forage production. 
Common uses are fence posts and firewood. ​