UW Burke Herbarium species comparison

Sheaths open, smooth;

ligules 3-8 mm. long, obtuse and lacerate;

blades flat, scabrous, 2-10 mm. broad.

Inflorescence a congested to open panicle 5-25 cm. long, the branches ascending to erect, green to purplish, scabrous throughout;

spikelets 1-flowered, articulate above the glume;

glumes 2.5-4.5 mm. long, pointed, often with an awn or bristle tip, the second glume somewhat shorter than the first;

lemma 1.5-2.5 mm. long, always shorter than the second glume, sometimes awned from above midlength;

callus slightly bearded;

palea 0.2-0.5 mm. long;

lodicules 2, 0.3-0.5 mm. long

Utricle