Verbatim text: Segeren, W. and P. J. M. Maas. 1971. The genus Canna in northern South America. Acta Bot. Neerl. 20: 663--680.
Author: Segeren, W., Maas, P.J.M.
Year: 1971
Title: The genus Canna in northern South America
Journal: Acta Bot. Neerl
Volume: 20
Pages: 663–680