Ptilagrostis is a genus of grasses in the family Poaceae.

Some authorities still include them in Stipa,[5] sometimes classifying Ptilagrostis as a section of that genus.

[2] Some species are difficult to separate, being intermediate in form.

[2] The genus is characterized in part by the papery, toothed lemmas of the spikelets, which have bent, plume-haired awns and do not overlap.

[6] Ptilagrostis species are generally tufted perennial grasses with erect stems.