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Challen, Gill

Job title: 

 Assistant Botanist

Herbarium, Library, Art and Archives
Systematic Teams
Joined Kew: 


Foreign languages: 


Qualifications and appointments: 

BSc (Hons), Microbiology, University of Surrey, 1973


Research into systematics of West African Euphorbiaceae and Phyllanthaceae.Curation and transactional process management of families within Malpighiales Section, HLAA. Naming of Euphorbiaceae sensu lato worldwide. Field studies in SE Asia and West Africa.

Selected publications: 

Challen, G., Vorontsova, M., Schneider, H., Cheek, M.  (2011) Phylogenetically Distinct and Critically Endangered New Tree Species of Phyllanthus from Cameroon ( Phyllanthaceae, Euphorbiaceae s.l.) Systematic Botany, 36(4)

Hoffmann, P., Kirkup, D.,Galster, A., G. Challen, G. & Radcliffe-Smith, A. (2005). Interactive key to the genera of Euphorbiaceae sensu lato. Available at: