Panicum decompositum var. decompositum

Tufted perennial. Culms erect, to 80 cm high; nodes glabrous. Leaves glabrous or ciliate about the sheath-blade junction, rarely with a few short stiff hairs; sheath pale; blade flat, to 30 cm long and 12 mm wide; ligule 1–2.5 mm long, ciliate. Panicle 10–25 cm long, fully exserted at maturity, primary and secondary branches finally spreading. Spikelets 2.2–3.1 mm long; lower glume weakly 1-nerved or apparently nerveless, broadly obtuse or, usually, truncate, without a central point, 0.5–1 mm long; rachilla exposed for c. 0.2 mm between glumes; upper glume 7–9-nerved, acute, 2–3 mm long; lemma of lower floret equal to upper glume; palea of lower floret c. three-quarters as long as its lemma; fertile lemma obtuse at maturity, slightly shorter than spikelet, hard, shining, dorsally rounded; palea subequal to lemma, flat or concave. Flowers Dec.–May.