<b>Gough Island.</b> Lower down on the island, showing the tree fern <i>Blechnum palmiforme</i> and <i><a href="//commons.wikimedia.org/wiki/Phylica_arborea" title="Phylica arborea">Phylica arborea</a></i>, one of only two true trees, on the island.
Photo: Steven Chown
CC BY 2.5
Gewin V (2005): <i>Eco-Defense against Invasions.</i> PLoS Biol 3(12): e429 <a href="//doi.org/10.1371/journal.pbio.0030429" class="extiw" title="doi:10.1371/journal.pbio.0030429">doi:10.1371/journal.pbio.0030429</a>