A dictionary of useful and everyday plants and their common names
Howes, Frank Norman.
Willis, John Christopher.Dictionary of the flowering plants and ferns.Adaptations.
London Cambridge University Press
1974
'Based on material contained in J.C. Willis: "A dictionary of the flowering plants and ferns" (6th edition, 1931)'. - Extends and updates the more general information omitted from later editions
Bibliography: p.289-290
Botany, Economic