Verbatim text: Widrlechner, M. P. 1983. Historical and phenological observations on the spread of Chaenorrhinum minus across North America. Canad. J. Bot. 61: 179–187.
Author: Widrlechner, M.P.
Year: 1983
Title: Historical and phenological observations on the spread of Chaenorrhinum minus across North America
Journal: Canad. J. Bot
Volume: 61
Pages: 179–187