Xylophragma seemannianum (Kuntze) Sandwith in Kew Bull. 8(4): 469–470. 1953 sec. Lohmann & Taylor 2014
- =Saldanhaea seemanniana Kuntze, Revis. Gen. Pl. 2: 480. 1891 syn. sec. Gentry 1982
- =Distictis rovirosana J.D. Sm. in Bot. Gaz. 20: 7. 1895 syn. sec. Gentry 1982
- =Tecoma floccosa Klotzsch ex Bureau & K. Schum., Fl. Bras. 8(2): 318. 1897 syn. sec. Gentry 1982
- =Adenocalymma cocleense Pittier in Contr. U.S. Natl. Herb. 18(6): 255. 1917 syn. sec. Gentry 1982
- =Tabebuia floccosa (Klotzsch) Sprague & Sandwith in Bull. Misc. Inform. Kew 1932: 27. 1932 syn. sec. Gentry 1982