Verbatim text: Ballard, R. 1986. Bidens pilosa complex (Asteraceae) in North and Central America. Amer. J. Bot. 73: 1452–1465.
Author: Ballard, R.
Year: 1986
Title: Bidens pilosa complex (Asteraceae) in North and Central America
Journal: Amer. J. Bot
Volume: 73
Pages: 1452–1465