Stems erect, 10–40 cm, spreading-branched at the base. Herbage glabrous to pubescent. Leaves erect, 5–20 mm long. Petals 1–2 mm long. Capsule short-pedicellate, erect, 6–15 mm long; seeds vertical and side-by-side in the 2 locules (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).