#Athyrium

• Athyrium — A widespread genus of terrestrial ferns in the family Athyriaceae, distributed globally but predominantly found in temperate and mountainous regions of the Northern Hemisphere. They are characterized by elegant, finely divided fronds and sori arranged along the veins, often protected by a comma-shaped, horseshoe-shaped, or crescent-shaped indusium.
• Athyrium alpestre — A specific species of fern in the Athyrium genus (synonymous with Athyrium distentifolium), commonly known as the alpine lady-fern. This plant grows at high altitudes, in rocky areas, damp screes, subalpine forests, and open ridges, adapted to harsh climate conditions and characterized by small, round sori often completely lacking an indusium.
• Athyrium filix-femina — A representative fern species in the Athyrium genus, commonly known as the lady-fern. It is a common perennial plant in shady, damp forests of the Northern Hemisphere, recognized by its large, highly elegant, finely divided fronds and elongated or crescent-shaped sori protected by a characteristic horseshoe-like indusium.