Caesalpinia digyna Rottl., Ges. Naturf. Fr. Berl. Neue Schr. 4 (1803) 200, t. 3; Ridley, Fl. Malay Penins. 1 (1922) 651; Backer & Bakh.f., Fl. Java 1 (1964) 546; Hattink, Reinwardtia 9 (1974) 28, f. 4/6; J.E.Vidal in Fl. Camb., Laos & Vietnam 18 (1980) 41, pl. 6/1–8; in Fl. Thailand 4 (1984) 75, f. 19/1–8; Rudd in Fl. Ceylon 7 (1991) 52; Hou, Larsen & Larsen, Fl. Malesiana 12 (1996) 544.
Type: Rottler s.n. (B holo; K), S India.
Caesalpinia gracilis Miquel, Fl. Ind. Bat. 1, 1 (1855) 110.
Type: Horsfield 138 (K holo; BM), Java.