Verbatim text: Warners, D. P. and D. C. Laughlin. 1999. Evidence for a species-level distinction of two co-occurring asters: Aster puniceus L. and Aster firmus Nees. Michigan Bot. 38: 19–31.
Author: Warners, D.P., Laughlin, D.C.
Year: 1999
Title: Evidence for a species-level distinction of two co-occurring asters: Aster puniceus L. and Aster firmus Nees
Journal: Michigan Bot
Volume: 38
Pages: 19–31