Acerca de algumas plantas vasculares invasoras em Portugal continental

Abstract

We have selected 37 species of dangerous invasive vascular plants living in continental Portugal. We present tables resuming the main informations related to these species: region of origin, phytotype, kind of synanthropic plant, kind of introduction, way of propagation, year of discovery or first mention as a subspontaneous plant, number of provinces in which a species is found, number of invasive species found in every province. We comment some of these characteristics and try to answer to some questions like: why do some provinces have a bigger number of invasive species than others, and what are the features which make a species invasive.