Naturalised plants in south-west South Island, New Zealand

Abstract

Of 140 species of naturalised plants found at 58 sites between Haast and southern Fiordland 24 were deliberately planted and persist at their original sites, 51 are accidental introductions restricted to hut, settlement, and road sites, and 6S occur only at unmodified sites, especially coasts, lake edges, and valley floor grasslands. Those which most threaten native vegetation are gorse (Ulex europaeus), broom (Cytisus scoparius), crack willow (Salix fragilis), Canadian pondweed (Elodea canadensis), and marram grass (Ammophila arenaria). Control of naturalised plants particularly within Fiordland National Park is discussed. © 1982 Taylor & Francis Group, LLC.