Monographs Details: Acacia angustissima (Mill.) Kuntze var. angustissima
Authority: Isley, Duane. 1973. Leguminosae of the United States: I. Subfamily. Mimosoideae. Mem. New York Bot. Gard. 25 (1): 1-152.
Family:Mimosaceae
Discussion:Acaciella angustissima (Mill.) Britt. & Rose Mexico and Central America. Reported from Texas by Wiggins (1942) but material is var. hirta.