Festuca hallii
{{Short description|Species of grass}}
{{Speciesbox
|image = Festuca hallii at Glenbow Ranch PP Alberta.jpg
|genus = Festuca
|species = hallii
|authority = (Vasey)
}}
Festuca hallii, the Piper plains rough fescue, is a species of grass which can be found in Central Canada and in such US states as New Mexico, North Dakota, Montana, Washington, and Wyoming.{{cite web|url= http://plants.usda.gov/core/profile?symbol=FEHA3|title=Festuca hallii |publisher=Plants Profile|work=USDA|accessdate=December 6, 2013}}
Description
Festuca hallii is a perennial bunchgrass with short rhizomes.{{Cite book|last1=Aiken|first1=S. G.|url=http://dx.doi.org/10.5962/bhl.title.59072|title=Fescue grasses of Canada /|last2=Darbyshire|first2=S. J.|date=1990|publisher=Agriculture Canada|isbn=0-660-13483-7|location=Ottawa|doi=10.5962/bhl.title.59072}} It has stiff, rough leaf blades which grow to 10-35cm on average, and flowering culms which grow to 20-65cm on average.{{Cite book|last1=Aiken|first1=S. G.|url=http://dx.doi.org/10.5962/bhl.title.59072|title=Fescue grasses of Canada /|last2=Darbyshire|first2=S. J.|date=1990|publisher=Agriculture Canada|isbn=0-660-13483-7|location=Ottawa|doi=10.5962/bhl.title.59072}}