Guaiacum sanctum L., Sp. Pl. 1: 382. 1753 sec. Stafford 2010
- =Guaiacum verticale Ortega, Nov. Pl. Descr. Dec. 8: 93. 1798 syn. sec. The Plant List 2013
- =Guaiacum multijugum Stokes, Bot. Mat. Med. 2: 488. 1812 syn. sec. The Plant List 2013
- =Guaiacum guatemalense Planch. ex Rydb., N. Amer. Fl. 25(2): 106-107. 1910 syn. sec. Stafford 2010