Source: Christenhusz, M. & Raab-Straube, E. von (2013+): Polypodiopsida. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Finnish (Finland): kortekasvitA; Swedish (Sweden & Finland): fräkenväxterA
Bibliography
A.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
