Name

Senegalia greggii (A. Gray) Britton & Rose, N. Amer. Fl.  23:  110.  1928;

Synonymy and types

Acacia greggii A. Gray, Pl. wright. 1: 65.  1852.  - TYPE:  MEXICO.  CHIHUAHUA:  west of Patos (dry valley), 10 Apr 1847, Dr. Gregg s.n.  (holotype:  GH).  NOTE:  For more information on this type, see Isely (1969, 1998) and Glass (2003).

Acacia durandiana Buckley, Proc. Acad. Nat. Sci. Philadelphia. 1861: 453.  1862.  - TYPE:  UNITED STATES.  TEXAS:  near Ft. Belknap, Jun 1861, S. B. Buckley s.n. (holotype:  PH).

Acacia greggii A. Gray var. arizonica Isely, Sida 3: 377.  1969.  - TYPE:  UNITED STATES.  ARIZONA:  Yavapai Co., Montezuma Well, near Camp Verde, alt. 3550 ft., 18 Jul 1948, Schroeder 114 (holotype:  ISC).