Phalaris coerulescens

Tufted perennial, basal internodes tuberous, stems erect, to 120 cm high. Leaves glabrous; blade minutely scabrous, to 12 cm long and 6 mm wide; ligule obtuse, membranous, 4–6 mm long. Panicle dense, ovoid-cylindric, 3–12 cm long, purplish; fertile spikelets 5–7 mm long; glumes 3-nerved, equal, with an apical point to c. 1 mm, the wing on the keel usually shortly 1–4 toothed; sterile lemmas absent; fertile lemma lanceolate, 3–4 mm long, glabrous; male and sterile spikelets resembling fertile ones, sometimes slightly smaller. Flowers Nov.