== Selected sources ==
8*Backer, 27C.A. & Bakhuizen van den Brink Jr., 82R.C., 861963-1968. Flora of Java. 3 volumes. Wolters-Noordhoff, 101Groningen, the Netherlands. 647, 641, 761 pp.*Burkill, I.H., 1966. A dictionary of the economic products of the Malay Peninsula. 2nd Edition. 2 volumes. Ministry of Agriculture and Co-operatives, Kuala Lumpur, Malaysia. 2444 pp.*Jeffrey, C., 1990. The Vernonieae in East tropical Africa. Notes on Compositae: 5. Kew Bulletin 43: 195-277.*Koster, J.T., 1935. The Compositae of the Malay archipelago. 1. Vernonieae and Eupatorieae. Blumea 1: 351-536.*Mansfeld, R., 1986. Verzeichnis landwirtschaflicher und gärtnerischer Kulturpflanzen (ohne Zierpflanzen) [Register of cultivated agricultural and horticultural plants (without ornamentals)]. Schultze-Motel, J. et al., editors 2nd edition, 4 volumes. Springer Verlag, Berlin, Germany. 1998 pp.
== Authors ==