Stems erect, 10–50 cm. Herbage puberulent. Leaves alternate, linear, obscurely petiolate, 1–6 cm long. Flowers slightly irregular, pedicelate, magenta (white); hyapnthium 1–5 mm long; sepals 6–15 mm long, often joined at the tips; petals 1–3 cm long, deeply 3-lobed with a pair of small lateral lobes on the claw; stamens 8, only 4 fertile; stigma lobes 1–3 mm long. Capsule linear, vaguely 4-angled, 1–2 cm long (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).