Agrostis parviflora

Tufted glabrous annual, culms erect, to 30 cm high. Leaf-blades flat, folded or filiform, to 10 cm long and 1.5 mm wide; ligules obtuse, 0.5–1.5 mm long. Inflorescence an open panicle, to 9(–12) cm long and 5(–8) cm wide, the branches initially ascending but soon divaricately spreading, longest branches rarely more than 3 cm (and often less than 2 cm) long. Spikelets 1.5–2 mm long, green or purplish; glumes acute, subequal or the lower slightly longer, keeled, smooth or scabrous along the upper part of the keels; lemma subequal to the spikelet, glabrous, awnless; palea absent or minute (less than one-fifth as long as lemma); anthers 0.3–0.5 mm long. Flowers Dec.–Mar.