Perennial herb, somewhat shrubby, 2.5–15 cm. tall, procumbent, much branched with branches 4-angled, reaching 35 cm. long, vegetative parts and calyx densely covered with short, stiff, patent, white hairs.
Leaves petiolate; lamina ovate 5–18 x 2–18 mm., acute, cuneate at base, coarsely serrate-dentate; petiole 3–12 mm. long.
Capsule 4–5(9) mm. long including beak, pale brown, densely minutely pubescent to pubescent only in upper third.
Calyx (2)3–4.5 mm. long, lobes (1.8)2.3–3.2 mm. long, narrowly triangular to linear-triangular, subequal.
Pedicels 4–9 mm. long, filiform, decurved in fruit.
Bracteoles 1.2–1.5 mm. long, subulate.
Flowers solitary.