Slender, densely caespitose perennial; culms up to 28 cm tall, erect from a shortly ascending base; basal leaf sheaths persistent; leaf laminas 2–15 cm × up to 1.8 mm, filiform, folded, convolute or rarely flat.
Racemes 4–15 cm long, erect, slender, flexible, ± straight.
Caryopsis not seen.