T: Ireland, Mayo (Vice county H27, West Mayo), Cluddnaun (grid reference G/018.285), Jul 1989, T.C.G. Rich L254; holo: PR; iso: BEL, BM, DBN, E, K, LD, PRA, TCD.
Stems 12–27 (–35) cm tall, usually slender. Basal leaves ±densely to subsparsely ciliate, 2.2–2.8 (–3.5) mm wide. Cauline leaves usually 2–3. Upper cauline leaves 4.0–8.5 cm long, 1.5–2.2 (–2.5) mm wide. Lower bract usually 1.7–4.3 (–5.5) cm long, shorter than or overtopping inflorescence, often reddish. Inflorescence with pedunculate clusters; peduncles mostly straight, some flexuose, usually at least one in a plant recurved, sometimes with secondary branches, smooth. Clusters 5–9 (–18); subsessile clusters 1–2, ellipsoidal-ovoid to ovoid, rarely hemispherical; flowers in pedunculate clusters 5–8 (–10); bractlets 1.5–1.8 mm long, ciliate. Tepals pale straw-brown or brown; outer sepals ±equalling inner ones or often up to 0.4–0.6 mm longer, 2.6–3.2 mm long, acuminate. Anthers 0.6–0.7 mm long, with anther-filament length ratio 1.0–1.2; ovary 0.9–1.0 mm long; style 0.6–0.7 mm long; stigma 1.2–1.4 mm long. Capsules equalling perianth or shorter; capsule segments 1.9–2.2 mm long; seeds ovoid, 0.8–0.9 (–1.0) mm long, 0.7 mm wide; appendage 0.2–0.3 mm long. 2n=24 [24AL], fide J.Kirschner, Folia Geobot. Phytotax. 30: 392 (1995).