hare's-tail cottongrass, tussock cottongrass, sheathed cottonsedge

E. vaginatum is a 30–60 cm high tussock-forming plant. The inflorescence is a dense, tufted cyme with erect solitary, multiflowered spikelets. It is rhizomatous, with leaves usually longer than the stem,and the fruit is an achene. Each individual tussock comprises 300–600 tillers, which contain two to three needle-like leaves enclosed in a sheath at the base