| Piptatherum acuminatum J.Presl | Synonym |  | WCSP | 
	
		| Piptatherum aequiglume Roshev. | Accepted |  | TRO | 
	
		| Piptatherum aequiglume var. aequiglume | Accepted |  | TRO | 
	
		| Piptatherum aequiglume var. fasciculatum (Hack.) Freitag | Synonym |  | WCSP | 
	
		| Piptatherum alpestre (Grigorj.) Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum angustifolium Munro ex Aitch. [Invalid] | Synonym |  | WCSP | 
	
		| Piptatherum angustifolium Munro ex Boiss. | Accepted |  | TRO | 
	
		| Piptatherum angustifolium var. pubescens (Bor) Freitag | Synonym |  | WCSP | 
	
		| Piptatherum annulatum Raddi | Synonym |  | WCSP | 
	
		| Piptatherum annulatum (Nees) J.Presl [Illegitimate] | Synonym |  | WCSP | 
	
		| Piptatherum arisitense Coste | Synonym |  | WCSP | 
	
		| Piptatherum badachschanicum (Tzvelev) Ikonn. | Synonym |  | WCSP | 
	
		| Piptatherum baluchistanicum Freitag | Unresolved |  | WCSP | 
	
		| Piptatherum barbellatum Mez | Synonym |  | WCSP | 
	
		| Piptatherum binabium Pazij | Synonym |  | WCSP | 
	
		| Piptatherum blancheanum E.Desv. | Synonym |  | WCSP | 
	
		| Piptatherum blancheanum Desv. ex Boiss. | Synonym |  | TRO | 
	
		| Piptatherum caerulescens auct. | Synonym |  | TRO | 
	
		| Piptatherum canadense (Poir.) Dorn | Synonym |  | WCSP | 
	
		| Piptatherum coerulescens (Desf.) P.Beauv. | Synonym |  | WCSP | 
	
		| Piptatherum coerulescens var. stramineum Hausskn. | Synonym |  | WCSP | 
	
		| Piptatherum comosum (Poir.) Roem. & Schult. | Synonym |  | WCSP | 
	
		| Piptatherum confine Schult. | Synonym |  | WCSP | 
	
		| Piptatherum elegans P.Beauv. [Invalid] | Synonym |  | WCSP | 
	
		| Piptatherum exiguum (Thurb.) Dorn | Synonym |  | WCSP | 
	
		| Piptatherum fasciculatum (Hack.) Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum fedtschenkoi Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum ferganense (Litv.) Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum flaccidum Freitag | Unresolved |  | WCSP | 
	
		| Piptatherum flavescens Sieber ex Nees [Invalid] | Synonym |  | WCSP | 
	
		| Piptatherum frutescens Schult. [Illegitimate] | Synonym |  | WCSP | 
	
		| Piptatherum fuscum Lindl. ex Steud. [Invalid] | Synonym |  | WCSP | 
	
		| Piptatherum gracile Mez | Synonym |  | WCSP | 
	
		| Piptatherum grandispiculum (P.C.Kuo & Z.L.Wu) S.M.Phillips & Z.L.Wu | Unresolved |  | WCSP | 
	
		| Piptatherum grigorjevii Tzvelev | Unresolved |  | WCSP | 
	
		| Piptatherum hilariae Pazij | Synonym |  | WCSP | 
	
		| Piptatherum hilariae subsp. badachschanicum Tzvelev | Synonym |  | WCSP | 
	
		| Piptatherum hissaricum (Tzvelev) Czerep. | Synonym |  | WCSP | 
	
		| Piptatherum holciforme (M.Bieb.) Roem. & Schult. | Synonym |  | WCSP | 
	
		| Piptatherum holciforme subsp. abyssinicum Freitag | Synonym |  | WCSP | 
	
		| Piptatherum holciforme var. blancheanum (Desv. ex Boiss.) Boiss. | Synonym |  | WCSP | 
	
		| Piptatherum holciforme var. epilosum Freitag | Synonym |  | WCSP | 
	
		| Piptatherum holciforme var. glabrum Freitag | Synonym |  | WCSP | 
	
		| Piptatherum holciforme subsp. longiglume (Hausskn.) Freitag | Synonym |  | WCSP | 
	
		| Piptatherum holciforme var. longiglume Hausskn. | Synonym |  | WCSP | 
	
		| Piptatherum humile (Bor) S.Kumar & Raizada | Synonym |  | WCSP | 
	
		| Piptatherum humile (Bor) R. K. Gupta | Synonym |  | TRO | 
	
		| Piptatherum karataviense Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum keniense (Pilg.) Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum kokanicum (Regel) Nevski | Synonym |  | WCSP | 
	
		| Piptatherum kuoi S.M.Phillips & Z.L.Wu | Unresolved |  | WCSP | 
	
		| Piptatherum laeve Nees & Meyen [Invalid] | Synonym |  | WCSP | 
	
		| Piptatherum laterale (Regel) Nevski | Synonym |  | WCSP | 
	
		| Piptatherum laterale Munro ex Aitch. | Accepted |  | TRO | 
	
		| Piptatherum laterale (Munro ex Regel) Roshev. | Synonym |  | TRO | 
	
		| Piptatherum laterale subsp. alpestre (Grig.) Freitag | Synonym |  | WCSP | 
	
		| Piptatherum laterale subsp. verticillatum Freitag | Synonym |  | WCSP | 
	
		| Piptatherum latifolium (Roshev.) Nevski | Synonym |  | WCSP | 
	
		| Piptatherum lindleyanum Nees | Synonym |  | WCSP | 
	
		| Piptatherum longiaristatum Boiss. & Hausskn. ex Boiss. | Synonym |  | WCSP | 
	
		| Piptatherum longiaristatum Boiss. & Hausskn. | Synonym |  | TRO | 
	
		| Piptatherum longiglume (Hausskn.) Holub | Synonym |  | WCSP | 
	
		| Piptatherum macrantherum Nees ex Steud. | Synonym |  | TRO | 
	
		| Piptatherum macratherum (Steud.) Nees ex B.D.Jacks. | Synonym |  | WCSP | 
	
		| Piptatherum mexicanum (Spreng.) Schult. & Schult.f. | Synonym |  | WCSP | 
	
		| Piptatherum micranthum (Trin. & Rupr.) Barkworth | Synonym |  | WCSP | 
	
		| Piptatherum microcarpum (Pilg.) Tzvelev | Synonym |  | WCSP | 
	
		| Piptatherum miliaceum (L.) Coss. | Synonym |  | WCSP | 
	
		| Piptatherum miliaceum subsp. thomasii (Duby) Soják | Synonym |  | WCSP | 
	
		| Piptatherum miliaceum var. thomasii (Duby) Boiss. | Synonym |  | WCSP | 
	
		| Piptatherum miliaceum subsp. thomasii (Duby) Freitag | Synonym |  | TRO | 
	
		| Piptatherum miliaceum var. thomasii (Duby) Lamotte | Synonym |  | TRO | 
	
		| Piptatherum molinioides Boiss. | Synonym |  | WCSP | 
	
		| Piptatherum multiflorum (Cav.) P.Beauv. | Synonym |  | WCSP | 
	
		| Piptatherum munroi (Stapf) Mez | Synonym |  | WCSP | 
	
		| Piptatherum nigrum Torr. | Synonym |  | WCSP | 
	
		| Piptatherum obtusum Nees & Meyen | Synonym |  | WCSP | 
	
		| Piptatherum obtusum (Stapf) Roshev. [Illegitimate] | Synonym |  | WCSP | 
	
		| Piptatherum obtusum Meyen | Synonym |  | TRO | 
	
		| Piptatherum pamiroalaicum (Grigorj.) Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum panicoides Gilbert [Invalid] | Synonym |  | WCSP | 
	
		| Piptatherum paradoxum (L.) P.Beauv. | Synonym |  | WCSP | 
	
		| Piptatherum parviflorum Roshev. [Illegitimate] | Synonym |  | WCSP | 
	
		| Piptatherum platyanthum Nevski | Synonym |  | WCSP | 
	
		| Piptatherum platyanthum var. glabrum Freitag | Synonym |  | WCSP | 
	
		| Piptatherum pubiflorum (Hack.) Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum punctatum (L.) P.Beauv. | Synonym |  | WCSP | 
	
		| Piptatherum pungens (Torr.) Dorn | Synonym |  | WCSP | 
	
		| Piptatherum purpurascens (Hack. ex Paulsen) Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum racemosum (Sm.) Barkworth | Synonym |  | WCSP | 
	
		| Piptatherum racemosum (Sm.) Eaton | Synonym |  | TRO | 
	
		| Piptatherum ramosum Nees | Synonym |  | WCSP | 
	
		| Piptatherum rechingeri (Bor) Freitag | Synonym |  | WCSP | 
	
		| Piptatherum roshevitsianum Tzvelev | Unresolved |  | WCSP | 
	
		| Piptatherum schugnanicum Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum setosum A.Rich. | Synonym |  | WCSP | 
	
		| Piptatherum shoshoneanum (Curto & Douglass M.Hend.) P.M.Peterson & Soreng | Synonym |  | WCSP | 
	
		| Piptatherum sinaicum Boiss. ex Steud. [Invalid] | Synonym |  | WCSP | 
	
		| Piptatherum sinense Mez | Synonym |  | WCSP | 
	
		| Piptatherum sogdianum (Grigorj.) Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum sogdianum subsp. fedtschenkoi (Roshev.) Tzvelev | Synonym |  | WCSP | 
	
		| Piptatherum sogdianum subsp. hissaricum Tzvelev | Synonym |  | WCSP | 
	
		| Piptatherum songaricum (Trin. & Rupr.) Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum songaricum Duthie [Invalid] | Synonym |  | WCSP | 
	
		| Piptatherum songaricum (Trin. & Rupr.) Roshev. ex Nikitina | Synonym |  | TRO | 
	
		| Piptatherum songaricum var. gracile Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum songaricum var. kokanicum (Regel) Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum songaricum var. rubescens Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum songaricum subsp. tianschanicum (Drobow & Vved.) Tzvelev | Synonym |  | WCSP | 
	
		| Piptatherum sphacelatum (Boiss. & Buhse) Boiss. | Synonym |  | WCSP | 
	
		| Piptatherum sphacelatum Boiss. & Buhse | Synonym |  | TRO | 
	
		| Piptatherum stipoides Gilbert [Invalid] | Synonym |  | WCSP | 
	
		| Piptatherum strictum Munro ex Hook.f. [Invalid] | Synonym |  | WCSP | 
	
		| Piptatherum thomasii (Duby) Kunth | Synonym |  | WCSP | 
	
		| Piptatherum tianschanicum (Drobow & Vved.) Roshev. ex V.A.Nikitin | Synonym |  | WCSP | 
	
		| Piptatherum tianschanicum Roshev. ex Nikitina | Synonym |  | TRO | 
	
		| Piptatherum tibeticum Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum tremuloides Ovcz. & Czukav. | Synonym |  | WCSP | 
	
		| Piptatherum turcomanicum Litv. ex Roshev. [Invalid] | Synonym |  | WCSP | 
	
		| Piptatherum vavilovii (Roshev.) Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum verticillatum Vayr. [Invalid] | Synonym |  | WCSP | 
	
		| Piptatherum vicarium (Grigorj.) Roshev. | Synonym |  | WCSP | 
	
		| Piptatherum virescens (Trin.) Boiss. | Synonym |  | WCSP | 
	
		| Piptatherum virescens Bubani [Illegitimate] | Synonym |  | WCSP |