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Conceptual invasion triangle for Heracium lepidulum in New Zealand based on information gathered in a literature review of Meffin et al. 2010; Radford et al. 2006, 2007, 2009, 2010; Rose and Frampton 1999; Syrett and Smith 1998; and Wiser et al. 1998. Note that this triangle is conceptual and that sides of the triangle have not been scaled.
