1. Department of Botany, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay, Hanoi, Vietnam
2. Middle Vietnam Research and Manufacturing Organic Medicinal Herb Centre, Hoa Hiep Nam Industrial Zone, Dong Hoa District, Phu Yen, Vietnam
3. Hanoi National University of Education, 136 Xuan Thuy Street, Cau Giay, Hanoi, Vietnam
4. International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon 34141, Korea
5. Joint Russian-Vietnamese Tropical Scientific and Technological Center, Cau Giay, Hanoi, Vietnam
6. M.V. Lomonosov Moscow State University, Faculty of Biology, Leninskie Gory 1–12, RU-119234 Moscow, Russia
7. The Herbarium, Singapore Botanic Gardens, National Parks Board, 1 Cluny Road, 259569 Singapore