Definition: Male Fern Rhizome is the dried rhizome and frond bases of Dryopteris crassirhizoma Nakai (Fam.

• 本品为鳞毛蕨科植物粗茎鳞毛蕨 Dryopteris crassirhizoma Nakai 的干燥根茎及叶柄残基。