↑P. F. Fyson, B.A., Indian Educational Service, F.L.S. Professor of Botany, Presidency College, Madras. (1915), The flora of the Niligiri and Pulney Hill-Tops (Above 6,500 Feet), Being the Wild and Commoner Introduced Flowering Plants Round the Hill-Stations of Kodaikanal, Ootacamund, Kotagiri and Kodaikanal, with 286 full page illustrations and 4 maps, II, Madras: Superintendent, Government Press, p. 179
↑The Royal Horticultural Society (2008) RHS Garden Hyde Hall Plant of the month: April, retrieved 2/19/2008 Gardens Archived 2005-11-20 at the Wayback Machine.