Palisot de Beauvois, A.M.F.J. (1812), Essai d'une Nouvelle Agrostographie: 17, 173 [tax. nov.]

• Type: (not designated).

(1908), Journal of the Department of Agriculture South Australia 12: 71 [secondary reference]

Hitchcock, A.S. (20 March 1920), The genera of grasses of the United States: with special reference to the economic species. Bulletin, United States Department of Agriculture, Washington, D.C 772: 156 [secondary reference]

• Type: Piptatherum caerulescens (Desf.) P.Beauv.

Bennett, E.M. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Poaceae. Flora of the Perth Region 2: 980 [secondary reference]

Kloot, P.M. (7 August 1987), The naturalised flora of South Australia 4. Its manner of introduction. Journal of the Adelaide Botanic Gardens 10: 236 [secondary reference]

Brummitt, R.K. (1992), Vascular Plant Families and Genera: 336 [taxonomic synonym]

taxonomic synonym of: Oryzopsis Michx. legitimate

Jacobs, S.W.L. & Everett, J. in Harden, G.J. (ed.) (1993), Piptatherum. Flora of New South Wales 4: 637 [secondary reference]

Morris, D.I. in Curtis, W.M. & Morris, D.I. (1994), Poaceae. The Student's Flora of Tasmania 4B: 194 [secondary reference]

Walsh, N.G. in Walsh, N.G. & Entwisle, T.J. (ed.) (1994), Poaceae. Flora of Victoria Edn. 1, 2: 399 [secondary reference]

Wheeler, J.R., Marchant, N.G. & Lewington, M. (2002), Flora of the South West 1: 429 [secondary reference]

Jacobs, S.W.L., Whalley, R.D.B. & Wheeler, D.J.B. (2008), Grasses of New South Wales Edn. 4: 90 (fig.), 97 (fig.), 341 [secondary reference]

• Etymology: "from the Greek for 'fall' and 'awn'."

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 671 [secondary reference]

Everett, J., Jacobs, S.W.L. & Nairn, L. in Wilson, A.J.G. (ed.) (2009), Tribe Stipeae. Flora of Australia 44A: 67-68 APC [secondary reference]

• APC Dist.: WA (naturalised), NT (doubtfully naturalised), SA (naturalised), NSW (naturalised), ACT (formerly naturalised), Vic (naturalised), Tas (naturalised)

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