Flora of New Zealand Series

Dense clumps, tight at base but with stems drooping outward in upper part of clump; rhizome short. Stems 1-2 m × 2-3 mm, wiry, dull blue-green, pith cobwebby, usually with large irregular cavities. Basal sheaths usually red-purple to black. Inflorescence (2) -5-10- (18) cm long, to c. 6 cm wide, fan-shaped with stiff slender branches pressed against stem. Flowers numerous, very small. Stamens usually 3. Capsule 1.5-2 mm long, ± = tepals, very pale brown.

N., S., St., Ch. Throughout in damp places. (Australia)

Recognised by the dense clumps of tall, dull blue-green, wiry, ridged stems, the many-flowered, fan-shaped, appressed heads, and very long bract. The outward-drooping stems of large clumps give a characteristic paper-like rustle in the wind. J. sarophorus is sometimes confused, because of the tall habit, with J. gregiflorus, but its blue-green stems are easily distinguished from the smooth bright green stems of that sp.

A troublesome pasture weed, rarely grazed.