Annual; glandular-pubescent. Stems erect, simple or branched, 10–60 cm high. Leaves appressed-pubescent, ciliate, 10–55 mm long, 3–12 mm wide; basal leaves with petioles to 10 mm long, obovate-spathulate; stem leaves sessile or subsessile, lanceolate-obtuse. Inflorescence simple or sparsely-branched, racemose, few–many-flowered; bracts herbaceous. Flower bisexual; pedicels 2–10 mm long; calyx narrow-ovoid, larger in fruit, 6–13 mm long, 10-veined, eglandular-hairy, veins green or purplish, reticulate, calyx-lobes triangular-acuminate; petal-limb c. 1.5 mm long, pink, bifid; styles 3. Capsule ovoid-cylindric, 5–9(–11) mm long; carpophore 1–1.5 mm long, more or less puberulent; seeds reniform, greyish-red, faces deeply concave, dorsal rim very broad, minutely asperate-tuberculate only in the shallow groove, blunt elsewhere, 0.7–0.8 mm long. Flowers spring.