Annual herb up to 10 cm. Leaves sessile, linear, mucronate, 3-6 by 0.5-0.7 mm, with acute apex. Stipules scarious, oblong, 2 by 0.7 mm, acute-acuminate, with irregularly incised margin. Sepals scarious, ovate-oblong, acute, c. 3 by 1 mm, midrib visible 1 mm up from the base. Petals 1-nerved, elliptic-oblong, 1.2-2 by 0.3-0.7 mm, apex broadly rounded, bidentate or irregularly dentate. Stamens 5, c. 1.5 mm; Ovary ellipsoid, c. 0.5 mm or less; Capsule short-stalked, ellipsoid, 1.5-2 by 0.7-1 mm. Seeds c. 6, reniform, c. 0.5 mm.