Verbatim text: Cherniawsky, D. M. and R. J. Bayer. 1998. Systematics of North American Petasites (Asteraceae: Senecioneae). I. Morphometric analyses. Canad. J. Bot. 76: 23–36.
Author: Cherniawsky, D.M., Bayer, R.J.
Year: 1998
Title: Systematics of North American Petasites (Asteraceae: Senecioneae). I. Morphometric analyses
Journal: Canad. J. Bot
Volume: 76
Pages: 23–36