References
Romaschenko, K., P.M. Peterson, R.J. Soreng, O. Futorna, and A. Susanna. 2011. Phylogenetics of Piptatherum s.l. (Poaceae: Stipeae): evidence for a new genus, Piptatheropsis, and resurrection of Patis. Taxon 60: 1703-1716. Google Scholar
Romaschenko, K., P.M. Peterson, R.J. Soreng, O. Futorna, and A. Susanna. 2011. Phylogenetics of Piptatherum s.l. (Poaceae: Stipeae): evidence for a new genus, Piptatheropsis, and resurrection of Patis. Taxon 60: 1703-1716. Google Scholar