No branching occurs above the crown. Leaf auricles are large with ciliate, amd the sheath is split, hairless, and smooth. Ligules are membranous and 1.2-4 mm in length. The dark green leaf blades are flat and broad with rough and cutting edges. The bottom surface is fairly shiny.
Ridges occur on the upper surface.
The entire surface of the blade is hairless. The inflorescence of Tall Fescue is paniculate. The spikelets occur on fine branches with persistent axes and are not secund. They are compressed laterally and the rachilla extends beyond the last female fertile floret. Incomplete florets are found on the rachilla.