Columbus grass

An erect, robust, tussocky perennial with numerous tillers and thick short rhizomes which curve upwards to produce new shoots near the parental stool.  Culms solid and pithy, about 1 cm thick, sometimes reaching a height of 3–3.6 m.  Internodes of culm may have a thickened ring.  Leaves 2.5–4.0 cm wide, generally glabrous except for hairs near the ligule.  Inflorescence is a large pyramidal panicle with secondary and tertiary branches, generally drooping as seed ripens.