Article

Tripleurospermum rosellum is here reported as native to Bulgarian flora for the first time based on materials gathered in the East Rhodope Mts. The revision of herbarium materials revealed that the taxon has been collected from several different localities in the same region of the country over the past 80 years. A detailed presentation on its morphology, distribution and habitat characteristics in Bulgaria are presented. The Greek collections of Tripleurospermum oreades are to be referred to T. rosellum. The species is also confirmed for the mainland of European Turkey.