阔羽粉背蕨(原变种) kuo yu fen bei jue (yuan bian zhong)

Pellaea tamburii Hooker, Sp. Fil. 2: 134. 1858; Allosorus tamburii (Hooker) Kuntze; Cheilanthes argentea (S. G. Gmelin) Kunze var. tamburii (Hooker) Beddome; C. tamburii (Hooker) T. Moore; Doryopteris tamburii (Hooker) C. Christensen.

Fronds with white farina abaxially.

Thickets, rock crevices in dry hot valleys; 1900-2700 m. S Sichuan, NW Yunnan [India, Nepal].