银粉背蕨(原变种) yin fen bei jue (yuan bian zhong)

Pteris argentea S. G. Gmelin, Novi Comment. Acad. Sci. Imp. Petrop. 12: 519. 1768; Aleuritopteris argentea var. flava Ching & S. K. Wu; A. argentea var. geraniifolia Ching & S. K. Wu; A. argentea var. major Ching; A. michelii (Christ) Ching; A. qianguiensis W. M. Chu & H. G. Zhou; A. subargentea Ching; Allosorus argenteus (S. G. Gmelin) C. Presl; Cheilanthes argentea (S. G. Gmelin) Kunze; C. subargentea (Ching) C. M. Kuo; Doryopteris argentea (S. G. Gmelin) Christ; D. michelii Christ.

Fronds with white or pale yellow farina abaxially.

Limestone crevices or rock walls; below 3900 m. Widely distributed throughout China [Bhutan, Japan, Korea, Mongolia, Nepal, Russia].

Aleuritopteris qianguiensis refers to specimens in which the laminae appear glandular but not farinose abaxially. This likely resulted from the drying process, as application of heat during pressing can cause the farina to melt and soak into the pressing papers.