- Invasive Grass Species in Southern Africa INCO-DC Programme of the European Commission on Cooperation with Third Countries and International Organisations Area 1.1.3 (Research on ecosystems) Contract nr. ERBIC18CT970145 New Progress Report 1999 in PDF (30K) The soil-pathogen sensitive plant species A.arenaria (Marram grass) was introduced into South Africa over a hundred years ago. The greatest ...www.nioo.knaw.nl/cto/invass