1.Brandbyge, J. 1993: Polygonaceae, 531 – 544. – In: Kubitzki, K., Rohwer, J.G. & Bittrich, V. (ed.), The Families and Genera of Vascular Plants 2. – Berlin, Heidelberg & New York: Springer
=Gymnogonum Parryin Bull. Torrey Bot. Club 10: 23. 1883 syn. sec. Kew 20192
2.Kew 2019: Dataset export of the World Checklist of Vascular Plants database, dated 19 December. – Kew: Royal Botanic Gardens