Roger David Spencer (born 6 October 1945) is an Australia horticultural botanist. was born at Alfreton, Derbyshire.
botany | Botany | Botany Bay | The Botany of Iceland | Dehiscence (botany) | variety (botany) | American Horticultural Society | section (botany) | Pennsylvania Horticultural Society | American Journal of Botany | Systematic Botany | Massachusetts Horticultural Society | Botany Swarm | Xi'an China International Horticultural Exposition 2011 | Whorl (botany) | The Yule Brook Botany Reserve, showing fenceline, fire break, and typical vegetation, including ''Actinostrobus pyramidalis | systematic botany | series (botany) | National Institute of Agricultural Botany | Horticultural botany | homonym (botany) | Economic Botany | City of Botany Bay | Botany Town Centre | Botany Rams | Botany, New South Wales | Botany Downs | Agri Horticultural Society of India |