Medium-sized, evergreen plant reaches a height of 10 to 50 cm. Spores mature from October to June. The leaf plate is initially pale green, leathery and heart-shaped, but later dark green, spear-shaped. They can grow up to 25 cm, with equally long, reddish-brown to dark brown petioles. There are no morphological differences between sterile and fertile leaves. Spores mature from October to June. Countries of distribution: Portugal, Gibraltar, Spain, Morocco and Algeria, as well as The Canary Islands, Madeira, Azores and Cape Verde Islands. It inhabits shady gorges and laurel forests at altitudes of 500 to 1600 m. it is a terrestrial plant, although it can sometimes be epiphytic or epiphytic and appear on tree trunks and on rocks.