T: [Australia] M [Ora Meridionalis], King George´s Sound, R.Brown; syn: BM, K, NSW.
Perennials, 75–170 cm tall; rhizome creeping, very short-noded, 5–10 mm in diam. Stems densely tufted, leafless, terete, 2.5–5.5 (–8) mm diam., hard, smooth, mid-green; ridges 45–90, inconspicuous; subepidermal sclerenchyma strands present, with some connected to small vascular bundles; epidermis cells uniform; pith continuous, of perfectly astericiform cells. Cataphylls 3–4, lax; upper cataphylls 12–25 cm long, with long thin mucro, abaxially pale yellow to very dark yellow-brown distally, to dark red-brown and ±glossy at base, adaxially silvery to golden brown. Lower bract 6–35 cm long, exceeding or rarely equalling inflorescence, with narrow to slightly dilated sheath. Inflorescence pseudolateral, diffuse, 6–18 cm long; flowers numerous, bracteolate, loosely to densely clustered or solitary. Bracteoles ovate, c. 1 mm long, obtuse, scarious to pale stramineous. Tepals 2.5–3.5 mm long, equal or outer ones longer, lanceolate, acuminate or inner ones acute, stramineous-brown, with narrow membranous or pale yellow margins. Stamens 6; anthers 0.7–1.2 mm long; filaments 0.4–0.8 mm long; style very short; stigmas c. 1–2 mm long. Capsule triseptate, ellipsoid to obovoid, 2.8–3.5 mm long, usually conspicuously exceeding or rarely equalling perianth, rounded trigonous, acute to obtuse, not or shortly mucronate, golden brown. Seeds obliquely ellipsoid-obovoid, c. 0.5 × 0.25 mm, apiculate, conspicuously c. 16–22-striate, reticulate, pale brown; appendages absent.