Template:Romaschenko, Peterson & Soreng, 2011
- Romaschenko, K., Peterson, P.M. & Soreng, R.J. 2011. Phylogenetics of Piptatherum s.l. (Poaceae: Stipeae): Evidence for a new genus, Piptatheropsis, and resurrection of Patis. Taxon 60(6): 1703–1716. DOI: 10.1002/tax.606015
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