The botany of the Pelagian archipelago is without any doubt, the most studied of all the Italian islands: in fact, one finds an almost uninterrupted collection of botanical data ranging from the Nineteen Century up to the present times. In particular, the total number of species recorded to date from the island of Linosa amounts to around 308 different species of vascular plants.
Linosa hosts a small number of endemic species; this is probably the result of its relatively young geological age. The endemics are: Limonium algusae, Plumbaginacea present in along the southern and eastern rocky coastline; a species of Geraniaceae Erodium neuradifolium var. linosae, common in fields during spring; Valantia calva, a tiny annual Rubiacea, typically growing for a short period of time on the lava slopes; Pancratium maritimum, a psammophile species of Amarillidaceae found growing in the sandy pockets in the eastern rocky coast of Cala Pozzolana and is also encountered in various other sites along the northern coast (Cala Mannarazza, Punta Calcarella). Linosa also hosts a number of endemics present in the Sicilian channel; including Logfia lojaconoi, present also on Pantelleria and Linaria pseudolaxiflora, also known from the Maltese Archipelago.