1. Wight, R.Icones Plantarum Indiae Orientalis; Wheldon & Wesley, Ltd. and Hafner Publishing Co. New York, 1853; Vol. III, pp 1997−1998.
2. Thawaites, G. H. K.Enumeratio Plantarum Zelanicae; Dulau & Co. London, 1864; pp 11−12.
3. Trimen, H.A Handbook to the Flora of Ceylon,Part III; Dulau & Co.: London, 1885; pp 436−437.
4. Dassanayake, M. D.A Revised Handbook to the Flora of Ceylon, Volume X; Oxford & IBH Publishing Co. Pvt. Ltd. New Delhi, 1996; pp 282−285.