Hordeum comosum

{{Short description|Species of plant in the family Poaceae}}

{{Speciesbox

|image=

|genus=Hordeum

|species=comosum

|authority=J.Presl

|synonyms_ref=

|synonyms={{Collapsible list|

• Critesion comosum {{small|(J.Presl) Á.Löve}}
• Hordeum andinum {{small|Trin.}}
• Hordeum comosum var. bifidum {{small|Parodi ex Nicora}}
• Hordeum comosum var. flavescens {{small|É.Desv.}}
• Hordeum comosum var. humile {{small|É.Desv.}}
• Hordeum comosum var. rigidum {{small|É.Desv.}}
• Hordeum divergens {{small|Nees & Meyen ex Steud.}}
• Hordeum jubatum var. comosum {{small|(J.Presl) Kuntze}}
• Hordeum jubatum f. flavidum {{small|Kuntze}}
• Hordeum jubatum f. versicolor {{small|Kuntze}}

}}}}

Hordeum comosum is a species of wild barley in the family Poaceae. It is native to Chile and western and southern Argentina, and has been introduced to the Falkland Islands.{{cite POWO |id=278251-2 |title=Hordeum comosum J.Presl |access-date=19 March 2022 }} A widespread perennial grass, it is an important forage as it is relished by sheep.{{cite journal |title=Occurrence of Epichloë fungal endophytes in the sheep-preferred grass Hordeum comosum from Patagonia |year=2015 |last1=Iannone |first1=L.J. |last2=Irisarri |first2=J.G.N. |last3=Mc Cargo |first3=P.D. |last4=Pérez |first4=L.I. |last5=Gundel |first5=P.E. |journal=Journal of Arid Environments |volume=115 |pages=19–26 |doi=10.1016/j.jaridenv.2014.12.008 |bibcode=2015JArEn.115...19I |hdl=11336/4167 |hdl-access=free }}