^Stearn, William (2004). Botanical Latin. Portland, Ore. Newton Abbot: Timber Press David & Charles. ISBN9780881926279.
^Decaisne (1844). "Asclepiadeae". In de Candolle, Alphonso (ed.). Prodromus Systematis Naturalis Regni Vegetabilis [Prodrome of the Natural System of the Vegetable Kingdom] (in Latin). Vol. 8. Paris: Fortin, Masson and Associates. p. 494. doi:10.5962/bhl.title.286.