Annual to perennial herb; taproot sometimes stout. Stems decumbent to ascending or erect, (2)-5-15-(30) cm long. Lvs fascicled, not fleshy, linear, mucronate, (2)-4-10-(15) × 0.5-0.8 mm, glabrous or with glandular hairs. Stipules silvery, shortly connate, not forming a sheath, lanceolate, acute, 3-4.5 × 1.5-2 mm. Infl. a racemoid monochasium, many-flowered, with glandular hairs. Pedicels (2)-4-9 mm long, mostly > sepals, with glandular hairs. Sepals obtuse to subacute, (2.5)-3-4 mm long, with glandular hairs; margin scarious. Petals purplish pink, < sepals. Stamens (4)-7-10. Capsule c. = sepals. Seeds subtrigonous to semicircular, brown, not winged, finely papillate, 0.45-0.5 mm long.