Verbatim text: Soderstrom, T.R. 1967. Taxonomic study of subgenus Podosemum and section Epicampes of Muhlenbergia (Gramineae). Contr. U.S. Natl. Herb. 34:75-189
Author: Soderstrom, T.R.
Year: 1967
Title: Taxonomic study of subgenus Podosemum and section Epicampes of Muhlenbergia (Gramineae)
Journal: Contr. U.S. Natl. Herb
Volume: 34
Pages: 75–189