Verbatim text: Hess, W. J. 1969. A taxonomic study of Spiraea pyramidata Greene (Rosaceae). Sida 3: 298–308.
Author: Hess, W.J.
Year: 1969
Title: A taxonomic study of Spiraea pyramidata Greene (Rosaceae)
Journal: Sida
Volume: 3
Pages: 298–308