铁角蕨属（学名：Asplenium ），全属约有660种，广泛分布于世界各地，主要分布于热带和亚热带地区。

此属植物可食用，例如三种山苏(巢蕨)的嫩叶都可经烹炒后食用，和过猫(过沟菜蕨)。此种植物同时具有药用价值，例如：清热解毒、调经止血、收敛止带、外用治烧烫伤、外伤、疔疮肿毒、毒蛇咬伤，是常见的民俗植物。

Asplenium is a genus of about 700 species of ferns, often treated as the only genus in the family Aspleniaceae, though other authors consider Hymenasplenium separate, based on molecular phylogenetic analysis of DNA sequences, a different chromosome count, and structural differences in the rhizomes. The type species for the genus is Asplenium marinum.