Herbs annual. Roots fibrous. Flowering stems branched, erect, 5-6 cm; branches divaricate, sparsely pubescent. Leaves sparsely pubescent, base obscurely spurred, apex acute. Flowers shortly pedicellate, unequally 5-merous. Sepals lanceolate to spatulate, ca. 2 × 0.8-1 mm, sparsely puberulent, basal spur inconspicuous, apex acute. Petals lanceolate, 4.5-5 × ca. 1 mm, base slightly narrowed, apex mucronate. Stamens 10, shorter than petals; antepetalous ones inserted ca. 1 mm from petal base. Nectar scales quadrangular-spatulate, ca. 0.3 mm. Carpels erect, 3-3.5 mm, glabrous, base connate for ca. 1 mm. Fl. Jun.

* Fujian, SW Zhejiang (Longquan Xian).