Verbatim text: Woodland, D. W., I. J. Bassett, and C. W. Crompton. 1976. The annual species of stinging nettle (Hesperocnide and Urtica) in North America. Canad. J. Bot. 54: 374-383.
Author: Woodland, D.W., Bassett, I.J., Crompton, C.W.
Year: 1976
Title: The annual species of stinging nettle (Hesperocnide and Urtica) in North America
Journal: Canad. J. Bot
Volume: 54
Pages: 374–383