G. H. Ballantyne, “Roses of Great Britain and Ireland: B.S.B.I. Handbook no. 7. G. G. Graham and A. L. Primavesi; illustrated by Margaret Gold; distribution maps prepared by the Biological Records Centre, Institute of Terrestrial Ecology”., Edinburgh J. Bot., vol. 51, no. 1, pp. 127–127, Apr. 2010, doi: 10.1017/S0960428600001773.