Calamagrostis quadriseta

Calamagrostis quadriseta, commonly known as reed bent-grass or plume grass, is a tufted perennial grass in the family Poaceae native to south-eastern Australia, Tasmania, and New Zealand, where it grows in moist forest margins, damp grasslands, swampy depressions, and clearings in eucalypt woodland. The plant forms dense erect tussocks 60 to 150 centimetres tall arising from a short rhizome. Culms are unbranched, slender, and smooth. Leaves are mostly basal; the blades are flat or weakly inrolled, 20 to 50 centimetres long and 2 to 6 millimetres wide, with rough margins and a finely pointed tip; the ligule is a short membranous flap 1 to 3 millimetres long. The inflorescence is an erect, narrow, lanceolate to oblong panicle 10 to 25 centimetres long, greenish to purplish at flowering and becoming straw-coloured at maturity, with branches densely arranged along the rachis. Spikelets are single-flowered, 3 to 5 millimetres long, with awned lemmas and a tuft of fine callus hairs that give the seedhead its plumose appearance.