Tufted perennial 400-900 mm high; distinctly rhizomatous. Leaf blade 100-250 x 2-4(-6) mm, often in-rolled. Inflorescence a solitary one-sided 'toothbrush' up to 80 x 10 mm, sickle-shaped at maturity; spikelets in two rows. Spikelet 6-9 mm long, 3 to 4-flowered, awnless; glumes unequal, dissimilar in appearance and texture; lower glume less than 1/2 as long as upper glume; upper glume ± as long as spikelet; lemma 3-nerved; lowest lemma nerves hairy; anther 2.0-2.5 mm long.
Perennial, distinctly rhizomatous and tufted (densely), up to 0.9 m high. Leaf blades 100-250 mm long, often inrolled, 2-4(-6) mm wide. Spikelets 6-9 mm long. Spikes solitary, 1-sided, like a toothbrush, up to 80 mm long and 10 mm wide, sickle-shaped at maturity; spikelets in 2 rows, 3-or 4-flowered.
Perennial; up to 0.9 m high; distinctly rhizomatous; densely tufted. Leaf blades 100-250 x 2-4(-6) mm; often inrolled. Flowers: spikes solitary; 1-sided; like a toothbrush; up to 80 x 10 mm; sickle-shaped at maturity; spikelets 6-9 mm long; spikelets in 2 rows; 3-or 4-flowered.
Rhizomatous perennial 60 cm. Leaves linear, often rolled. Spikelets secund in an inflexed simple spike, 6-7 mm long.