Verbatim text: Baskin, J. M., K. M. Snyder, and C. C. Baskin. 1993. Nomenclatural history and taxonomic status of Echinacea angustifolia, E. pallida, and E. tennesseensis (Asteraceae). Sida 15: 597–604.
Author: Baskin, J.M., Snyder, K.M., Baskin, C.C.
Year: 1993
Title: Nomenclatural history and taxonomic status of Echinacea angustifolia, E. pallida, and E. tennesseensis (Asteraceae)
Journal: Sida
Volume: 15
Pages: 597–604