Geobotanical position of Nisyros

In geobotanical terms, Nisyros is considered part of the eastern botanic section of Aegean Sea (Rechinger, 1950).

Oriental elements are widely represented, i.e.:

Aristolochia hirta A. parvifolia Nigella arvensis ssp. glauca Papaver gracile Trifolium pilulare T. argutum Convolvulus scammonia Scrophularia canina ssp. floribunda Campanula nisyria.

Of the above mentioned species, Campanula nisyria is endemic and is solely restricted to Nisyros; yet it belongs to the C. lyrata group whose geographic spread is typically eastern – Aegean.

Papaver gracile species is known from Asia Minor; with respect to the Aegean region, it was first identified on Nisyros.

Geographic expansion of Nigella arvensis ssp. glauca (Strid, 1970) coincides with the expansion of Campanula lyrata taxon; it is typical of the eastern botanical region of the Aegean. Trifolium pilulare and T. argutum species are also typical of eastern Aegean. Finally, Limonium hirsuticalyx is another oriental botanic element; it is also known from Rhodes and Kos.