#kidney-leaved fern
- Adiantum reniforme — A rare and spectacular species of fern in the family Pteridaceae, genus Adiantum, remarkable for its unusual structure, having simple, entire, and rigid kidney-shaped (reniform) or heart-shaped fronds supported by long, thin, brownish-black petioles. This plant is native to the islands of Macaronesia (Madeira, Canaries) and certain regions of Africa, preferring shaded rocky crevices in volcanic zones, and is protected within its natural habitats.