Kalappia Kostermans, Reinwardtia 1 (1952) 451; Hutchinson, Gen. Flow. Pl. 1 (1964) 229; Irwin & Barneby in Polhill & Raven (eds.), Adv. Leg. Syst. l (1981) 101; Watson & Dallwitz, Gen. Leg.-Caesalp. (1983) 36; Hou, Larsen & Larsen, Fl. Malesiana 12 (1996) 625.
Type species: Kalappia celebica Kostermans.