Gunnera tinctoria is a gynomonoecious, clonal, perennial herb with large leafs native to Chile growing (up to 2 m tall). It became a very popular ornamental species in gardens and parks. The species produces large numbers of seeds and also spreads clonally by horizontal rhizomes. Typical habitats in Ireland include stream and river banks, coastal cliffs as well as disturbed areas, such as roadsides, quarries and ditches. Gunnera tinctoria is a strong competitor in its invasive range in Ireland.
Sheehy Skeffington M., Hall K. (2011): The ecology, distribution and invasiveness of Gunnera L. species in Connemara, western Ireland. Biology and Environment, Proceedings of the Royal Irish Academy 111B, 157–176.
Gioria M., Osborne B.A. (2013): Biological Flora of the British Isles: Gunnera tinctoria. Journal of Ecology 101, 243–264