Senegalia hayesii (Benth.) Britton & Rose, N. Amer. Fl. 23(2): 114. 1928 sec. Rico 2007
- ≡Acacia hayesii Benth., Trans. Linn. Soc. London 30(3): 524. 1875 syn. sec. Seigler 2006
- =Acacia iguana Micheli, Mém. Soc. Phys. Genève 34: 281, t. 25. 1903 syn. sec. ???
- =Senegalia acanthophylla Britton & Rose, N. Amer. Fl. 23(2): 118. 1928 syn. sec. Seigler 2006
- =Senegalia rekoana Britton & Rose, N. Amer. Fl. 23(2): 114. 1928 syn. sec. Seigler 2006
- =Acacia acanthophylla (Britton & Rose) Standl., Publ. Field Mus. Nat. Hist., Bot. Ser. 18: 488. 1937 syn. sec. Rico 2007