(Fernald) Hämet-Ahti, Ann. Bot. Fenn. 23: 280 (1986)
Inflorescence broad in outline; main branches erecto-patent to patent; heads 10–20, usually 4–6 mm in diam., 6–10-flowered; outermost flowers in heads patent; long-pedicellate separate flowers absent; pedicels to 0.5 mm long. Tepals ±equal, 1.5–2.0 mm long, all obtuse. Capsule oblong-ovoid, c. 2.5 mm long, acute, much exceeding perianth.