1. Plant Ecology and Geobotany, Faculty of Biology Philipps University of Marburg Marburg Germany
2. Department of Plant Biology and Biodiversity Management, College of Natural and Computational Sciences Addis Ababa University Addis Ababa Ethiopia
3. Department of Pharmaceutical Biology, Institute of Pharmacy Greifswald University Greifswald Germany
4. School of Pharmacy, College of Health Sciences Addis Ababa University Addis Ababa Ethiopia
5. Department of International Development, Community and Environment Clark University Worcester Massachusetts USA
6. Department of Chemistry, College of Natural and Computational Sciences Addis Ababa University Addis Ababa Ethiopia
7. Ethiopian Biodiversity Institute Addis Ababa Ethiopia