Verbatim text: Jansen, R. K., E. B. Smith, and D. J. Crawford. 1987. A cladistic study of North American Coreopsis (Asteraceae: Heliantheae). Pl. Syst. Evol. 157: 73–84.
Author: Jansen, R.K., Smith, E.B., Crawford, D.J.
Year: 1987
Title: A cladistic study of North American Coreopsis (Asteraceae: Heliantheae)
Journal: Pl. Syst. Evol
Volume: 157
Pages: 73–84