Working Document Series Open Access Distribution and potential invasion of Opuntia spp. on selected Namibian sites L.R. Brown · P.J. Du Preez · I.U. Kavirindi The distribution, density and size attributes of an alien invasive species, Opuntia spp., were assessed on each of north, west, south and eastern communal and commercial farming sites in Namibia. A chemical control trial on this species wa… RUF-34363 2010 CC BY 4.0 20 Aug 2015