Global Tree Specialist Group Members

The IUCN/SSC Global Tree Specialist Group (GTSG) has over 80 expert members from botanic gardens, herbaria, universities and both governmental and non-governmental organisations.  Find out more about the specialists who help to inform the conservation work we carry out.

Joeri Sergej Strijk

Asian Fagaceae

Alliance for Conservation Tree Genomics, Pha Tad Ke Botanical Garden, Lao PDR

Lawrence R. Stritch

Restoration, woody plants, pollinators, rare plants, crop wild relatives, ethnobotany

United States Forest Service, USA

Dr. Enny Sudarmonowati

Indonesia Institute of Science, Indonesia

Weibang SUN

Ex-situ conservation & restoration of Plant Species with Extremely Small populations in SW China

Kunming Botanical Garden, Chinese Academy of Sciences, China

Michael B. Thomas

Flora of Hawaiian Islands, Pacific Islands, herbaria and collections management, ex-situ seed conservation, biodiversity informatics, data management, ethnobotany

Joseph F. Rock Herbarium, University of Hawaii at Manoa

Jonathan Timberlake

Systematic biology, vegetation survey, plant conservation, Acacia

The Herbarium, Royal Botanic Gardens, Kew, UK

Joel Timyan

Societe Audubon Haiti

Maria de los Ángeles La Torre-Cuadros

Management & conservation of tropical forests through understanding of natural & social processes

Faculty of Forest Sciences, Universidad Nacional Agraria La Molina, Peru

Dr. Carmen Ulloa Ulloa

Andean Flora

Missouri Botanical Garden, USA