World Checklist of Ferns and Lycophytes

• Adiantum — A genus of ferns in the family Pteridaceae, comprising approximately 250 species commonly known as maidenhair ferns; they are structurally characterized by black, shiny, hair-thin petioles supporting delicate fronds with flabelliform (fan-shaped) segments that shed water droplets. These plants are distributed globally across tropical and warm temperate zones, preferring damp rocks near waterfalls.