Glabrous herb; stems erect to spreading, to 23 cm long. Leaves sessile to petiolate, spathulate, obovate, linear to ovate, (2–)3–11(–14) mm long, (0.5–)0.7–2(–2.5) mm wide, usually acute. Fruiting pedicle to 7.5 mm long, collared or ribbed below fruit. Petals (3–)5, 0.4–1(–1.2) mm long, shortly bifid or reduced to a single arm; stamens (2–)3–5. Capsule narrow ovoid, (2.5–)3.5–5.5(–6) mm long, 1–1.5 mm wide, equal to, or exceeding sepals; valves spreading, rarely straight, apex straight. Seeds 9–25, reniform to suborbicular, 0.5–0.7(–0.8) mm long. Flowers Sept.–Nov.