1. Netherlands Institute for Vectors Invasive plants and Plant health, NVWA, Wageningen, Netherlands
2. National Institute of Water & Atmospheric Research Ltd (NIWA), Hamilton, New Zealand
3. Centre for Biological Control, [Department of Botany], Rhodes University, Makhanda, South Africa
4. Conservatoire botanique national méditerranéen de Porquerolles, Hyères, France
5. Centre for Invasion Biology, Department of Botany and Zoology, Stellenbosch University, Stellenbosch, South Africa
6. Centre for Functional Ecology, Associate Laboratory TERRA, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
7. Institute of Botany, Department of Invasion Ecology, Czech Academy of Sciences, Průhonice, Czech Republic
8. Allan Herbarium, Manaaki Whenua – Landcare Research, Lincoln, New Zealand