Cheilanthes argentea (S.G. Gmelin) G. Kunze (Sinopteridaceae), a small fern growing on rather dry rocks in North Asia.

Rocks on the southern slope of the Budyumkan River valley 7 km upstream of its confluence with the Argun' River, 6 km S of the village Uryupino, Gazimurskozavodskoi District, E Chita Province, E Transbaikalia, Siberia, Russia. 26th July 1997. O. Kosterin.