One of the most abundant alien species on Tristan [1]
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forming extensive meadows on the lower parts of the Peak at 700-1,000m, often with alien grasses such as Holcus lanatus and Agrostis tenuis. At other islands it is scarce, local and probably declining in the absence of grazing pressure [1]. Tristan: Common in many habitats all over the island [2].
Also spp. angiocarpus. Gough: Wace (1967) reports a single plant, inadvertently imported with some vegetables, and was immediately destroyed. So it seems this species did not actually grow on Gough, although it reached the island. Inaccessible: First collected on Inaccessible by Moseley in 1873 at Salt Beach. Currently only known from two isolated sites on the eastern plateau (Ryan & Glass 2001). Recorded from Pig Beach Hill in 19821/83 (Preece et al 1986). in Fernbrake. [3]
[1] Ryan, P. (ed.) (2007). Field Guide to the Animals and Plants of Tristan da Cunha and Gough Island. Pisces Publications, Newbury. 162 pp; [2] Gremmen, N.J.M. and R.L. Halbertsma (2009). Alien plants and their impact on Tristan da Cunha. Report Data-Analyse Ecology, Diever, NL.; [3] Gremmen, N. J. M. (2010). Alien vascular plants of Inaccessible, Nightingale and Gough Islands (Tristan da Cunha Group).; [4] Ryan, P. & Glass, J.P. (2001). Inaccessible Island Nature Reserve Management Plan. Government of Tristan da Cunha, Edinburgh, Tristan da Cunha. 65 pp