Taprooted annual or biennial, rarely perennial. Stems decumbent, sparsely covered in glandular hairs above, or glabrous, 3-7-(10) cm long. Lvs not fascicled, fleshy, linear, obtuse or mucronate, 3-8-(12) × 1 mm, the lower glabrous, the upper with sparse glandular hairs. Stipules pale, not very silvery, connate for c. 1/2 of length and forming a short sheath, broadly triangular, subacute to acute, 1-1.5-(2) × 1-2 mm. Infl. a dichasium, few-flowered. Pedicels (1)-2-6-(10) mm long, with glandular hairs. Sepals obtuse, 2-3.5 mm long, with glandular hairs; margins scarious. Petals pink or white, < sepals. Stamens 1-5-(8). Capsule c. = to slightly > sepals. Seeds ovoid, brown, smooth, not winged, 0.5-0.6 mm long.