Tall Fescue
Schedonorus arundinaceus
Synonyms: Festuca arundinacea, Festuca elatior, Festuca elatior ssp. arundinacea, Festuca elatior var. arundinacea, Lolium arundinaceum, Schedonorus phoenix

Tall fescue as seen around the parking area at the Horsethief Butte trailhead, Columbia Hills State Park.............May 18, 2014.
- 
Tall fescue as seen around the parking area at the Horsethief Butte trailhead, Columbia Hills State Park.............May 18, 2014.
Paul Slichter