Stems spreading, 5–30 cm long. Leaves: blades 1–3.5 mm wide. Inflorescence an open panicle 5–12 cm long. Spikelets 4–8 mm long. Lemmas 10 to 19 per spikelet (Lavin in
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Frequently disturbed settings such as cracks in or along sidewalks, driveways, and parking lots, and along roads and railroad tracks (Lavin in
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).