Annual from a simple caudex. Stems 3–15 cm, unbranched. Basal leaves oblanceolate, 5–20 mm long, entire to dentate. Stem leaves lacking. Vestiture of few-branched hairs. Petals white, 2-lobed, 2–3 mm long. Fruit ascending, 3–8 × 1–2.5 mm, glabrous; style up to 0.2 mm long; lower pedicels 5–20 mm long (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Disturbed soil of fields, grasslands, along streams and roads; plains, valleys to montane (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).