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28 July 2016 Gymnocoronis spilanthoides (Asteraceae, Eupatorieae), a new naturalized and potentially invasive aquatic alien in S Europe
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Abstract

Gymnocoronis spilanthoides, a naturalized South American neophyte introduced as an aquarium and aquatic ornamental plant, is recorded for the first time from southern Europe. Two populations were found in irrigation canals and in a rice field in northern Italy. Distribution, invasion status, ecology, and pathways of introduction of the species are presented. Additionally, the modes of dispersal, never investigated before in the European continent, are discussed and the potential invasive behaviour and impacts in the new growing sites are assessed.

Version of record first published online on 28 July 2016 ahead of inclusion in August 2016 issue.

© 2016 The Authors · This open-access article is distributed under the CC BY 4.0 licence
Nicola M. G. Ardenghi, Giovanni Barcheri, Claudio Ballerini, Paolo Cauzzi, and Filippo guzzon "Gymnocoronis spilanthoides (Asteraceae, Eupatorieae), a new naturalized and potentially invasive aquatic alien in S Europe," Willdenowia 46(2), 265-273, (28 July 2016). https://doi.org/10.3372/wi.46.46208
Received: 17 March 2016; Accepted: 1 June 2016; Published: 28 July 2016
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