T: Karaginskiy Ostrov, K.H.Mertens; lecto: LE, fide V.S.Novikov, in S.S.Kharkevich, Sosud. Rast. Soviet. Dal. Vost. 1: 69 (1985); iso: S.
Perennials, (15–) 20–40 cm tall, forming small very dense stands; rhizome creeping, very short-noded, dark brown. Stem leafless, ±terete, 1.5–2.5 mm diam., smooth even when dry, indistinctly 15–20-striate; subepidermal sclerenchyma strands present; pith continuous, later sparsely arachnoid or occasionally evanescent, of astericiform cells. Cataphylls 3–4, ±tight; upper cataphylls to c. 8 cm long, abaxial side dull, stramineous distally, yellow-brown to deep red-brown and ±glossy at base, with adaxial side ±stramineous, obtuse or with a small awn-like blade. Lower bract 2–5 cm long, equalling or slightly exceeding inflorescence; sheath conspicuously constricted below inflorescence. Inflorescence pseudolateral, to 2 cm long, diffuse; flowers (1–) 2–5 (–8), with central ones sessile and side flowers with pedicels up to 1 cm long. Bracteoles broadly ovate, 2–2.5 mm long, obtuse, usually red-brown or marginally membranous. Tepals subequal, narrowly lanceolate to linear-lanceolate, usually 4.5–5 mm long; outer tepals often slightly longer, acuminate; inner tepals often acute, shining blackish to dark castaneous-brown to purple, with a narrow scarious margin above. Stamens 6; anthers 1.2–2.0 (–2.5) mm long, usually at least 3× as long as c. 0.5–0.6 mm filaments; style 1.5–2.0 mm long; stigmas (1.5–) 2–3 mm long. Capsule triseptate, trigonous-ovoid to ellipsoid, 5–6 mm long, exceeding the tepals, obtuse, mucronate (mucro c. 0.2–0.3 mm), dark brown to blackish-purple, shining. Seeds c. 0.9–1.0 × 0.4 mm, ellipsoid, with two slender membranous to whitish appendages 0.8–1.0 mm long.