Caesalpinia sappan Linnaeus, Sp. Pl. (1753) 381; Whitmore in Tree Fl. Malaya 1 (1972) 246; Hattink, Reinwardtia 9 (1974) 51, f. 4/17; J.E.Vidal in Fl. Camb., Laos & Vietnam 18 (1980) 26, pl. 2/8–14; in Fl. Thailand 4 (1984) 65, f. 15/8–14; Verdcourt, Manual New Guinea Leg., Lae Bot. Bull. 11 (1979) 27; Rudd in Fl. Ceylon 7 (1991) 52; Hou, Larsen & Larsen, Fl. Malesiana 12 (1996) 552.
Type: Herb. Hermann, vol. 4, fol. 31 (BM), Sri Lanka.