Casual, naturalised and invasive succulents of the Balearic Islands

Abstract

[eng] The Balearic Islands is a western Mediterranean archipelago that has undergone strong touristic pressure in the last decades. As a result, extensive gardening has led to the introduction of several succulent plants. In this paper we present a list of non-native succulents present in the Balearic Islands, based on field surveys conducted during the last years supported by an extensive bibliographic research. Eightyseven taxa are recorded representing eleven different families. Among these, nine taxa are novelties previously unknown to the Balearic flora, three of them being considered new to the Mediterranean and European flora. From all recorded taxa thirty-two remain as casual, twentyeight are considered naturalised and twenty-seven display full invasive traits competing with native plants.