Reference:Cronquist1978a
Verbatim text: Cronquist, A. 1978c. Gynura. In: N. L. Britton et al., eds. 1905+. North American Flora.... 47+ vols. New York. Ser. 2, part 10, pp. 150–151.
Author: Cronquist, A.
Year: 1978c
Title: Gynura
Editor: Britton, N.L.
Book year: 1905
Book title: North American Flora
Book volume: 47+ vols
Journal: Ser. 2
Volume: 10
Pages: 150–151