Comparison between impact magnitude of alien grasses in South Africa and elsewhere in the world. The values 1 to 5 on the x- and y-axis represent the GISS impact magnitudes and NA indicates no impact record found. The size of the points represents the frequency of species with impacts records.

  Part of: Nkuna KV, Visser V, Wilson JRU, Kumschick S (2018) Global environmental and socio-economic impacts of selected alien grasses as a basis for ranking threats to South Africa. NeoBiota 41: 19-65.