1. Department of Botany and Zoology Faculty of Science Masaryk University Brno Czech Republic
2. Department of Taxonomy Institute of Botany Czech Academy of Sciences Průhonice Czech Republic
3. Vegetation Ecology Institute of Natural Resource Management (IUNR) Zurich University of Applied Sciences (ZHAW) Wädenswil Switzerland
4. Plant Ecology Bayreuth Center for Ecology and Environmental Research (BayCEER) University of Bayreuth Bayreuth Germany
5. German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany
6. Department of Invasion Ecology Institute of Botany Czech Academy of Sciences Průhonice Czech Republic
7. Department of Ecology Faculty of Science Charles University Prague Czech Republic
8. Department of Environmental Biology Sapienza University of Rome Rome Italy
9. Department of Plant Biology and Ecology Faculty of Science and Technology University of the Basque Country UPV/EHU Bilbao Spain
10. WSL Swiss Federal Research Institute Birmensdorf Switzerland
11. Unit of Botany Faculty of Pharmacy Complutense University Madrid Spain
12. Research Unit of Biodiversity (CSIC/UO/PA) University of Oviedo Mieres Spain
13. M.G. Kholodny Institute of Botany of the National Academy of Sciences of Ukraine Kyiv Ukraine
14. Ecologie et Dynamique des Systèmes Anthropisés (EDYSAN, UMR 7058 CNRS‐UPJV) Jules Verne University of Picardy Amiens France
15. Komarov Botanical InstituteRussian Academy of Sciences St. Petersburg Russia
16. Institute of Botany, Plant Science and Biodiversity Centre Slovak Academy of Sciences Bratislava Slovakia
17. Department of Bioscience Section for Biodiversity Aarhus University Aarhus Denmark
18. Department of Landscape Architecture and Horticulture Faculty of Forestry University of Belgrade Belgrade Serbia
19. Department of Biology Center for Biodiversity Dynamics in a Changing World (BIOCHANGE) and Section for Ecoinformatics and Biodiversity Aarhus University Aarhus Denmark
20. Department of Botany School of Biology Aristotle University of Thessaloniki Thessaloniki Greece
21. Institute of Biodiversity and Ecosystem Research Bulgarian Academy of Sciences Sofia Bulgaria