Centaurea heldreichii Halácsy
Centaurea heldreichii is a perennial, chasmophytic, local endemic species of Western Greece. It is a species of Annexes ΙΙ and IV of the Directive 92/43/ΕU under priority for protection and it is considered as Critically Endangered (CR), because of its limited geographical distribution that does not exceeding 10 km2 according to IUCN RED LIST of Threatened Species (IUCN 2012) and the European Red List of Vascular Plants. It is included in the Red Data Book of Rare and Endangered Plants of Greece (2009) and Annex Ι of the Bern Convention. Additionally, it is protected in national level according to the Presidential Decree 67/81.