Scirpus nodosus Rottb.
Rhizome short. Stems rush-like, densely crowded, rigid, terete, often ± compressed, to 90 cm high. Leaves reduced to red-brown basal sheaths. Inflorescence a single hemispherical head, of numerous small densely crowded red-brown spikelets with a short terete pungent bract.
K., N., S., St., Ch. Usually coastal. (Austral circumpolar sp.)