Relict chomophytic and chasmophytic vegetation in the shaded and water-splashed habitats of the Mediterranean, the Atlantic islands, North Africa and Middle East
Vascular plants: Adiantum capillus-veneris, Adiantum raddianum, Adiantum reniforme, Aquilegia nuragica, Asplenium sagittatum, Cardamine caldeirarum, Geranium cataractarum, Glandora oleifolia, Hypericum coadunatum, Hypericum hircinum subsp. metroi, Hypericum nummularium, Pinguicula dertosensis, Pinguicula grandiflora subsp. grandiflora, Pinguicula hirtiflora, Pinguicula longifolia subsp. longifolia, Pinguicula longifolia subsp. reichenbachiana, Pinguicula mundi, Pinguicula poldinii, Pinguicula vallisneriifolia, Pteris cretica, Pteris vittata, Samolus valerandi, Soleirolia soleirolii, Sutera canariensis, Trachelium caeruleum, Woodwardia radicans