B.Boulos, L. 2009: Flora of Egypt checklist. Revised annotated edition. – Cairo: Al-Hadara Publishing
C.Taifour, H. & El-Oqlah, A. A. 2017: The plants of Jordan. An annotated checklist. – Kew: Royal Botanic Gardens
D.Kurtto, A., Lampinen, R., Piirainen, M. & Uotila, P. 2019: Checklist of the vascular plants of Finland. Suomen putkilokasvien luettelo. – Helsinki: Finnish Museum of Natural History LUOMUS