Leycesteria is a genus of six species native from the western Himalaya to China. Two shrubby species are cultivated as ornamentals in Europe (Cann 2000).
Literature
Airy Shaw H.K. (1932) A revision of the genus Leycesteria. Kew Bull. 1932: 161-176.
Bana A. & Singh V. (2007) Taxonomic studies on Indian Caprifoliaceae- III: Leycesteria Wall. J. Econ. Taxon. Bot. 31(1): 218-234.
Cann D.C.G. (2000) Leycesteria. In: Cullen J. & al. (eds.), The European Garden Flora, vol. 6. Cambridge University Press, Cambridge: 435-436.
Wu Z.Y. & al. (eds.) (in preparation) Flora of China, vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis (draft version accessed online in 2009).