Herbs annual, yellowish green when dry, glabrous. Stems simple or branched, erect or ascending, 3-7 cm. Leaf blade narrowly oblong to broadly lanceolate, 3-5 mm, basal spur obtuse or ± lobed, apex obtuse to subacute. Cyme corymbiform, few flowered; bracts broadly oblanceolate. Flowers unequally 5-merous, long pedicellate. Sepals yellowish green, oblong, 3-4.6 mm, veins 3-5, blackish, base spurless, apex obtuse. Petals ± free, yellow, greenish yellow when dry, subovate, 5-6 mm, apex obtuse and incurved. Stamens 10; antepetalous ones inserted 1.5-2 mm from petal base. Nectar scales linear-spatulate, 0.4-0.8 mm, apex obtuse. Carpels erect, base broad. Follicles green when dry, 4-5 mm, 12-14-seeded. Seeds obovoid, 0.5-0.7 mm, minutely mammillate, basal appendage stomach-shaped; funicle long. Fl. Aug-Sep, fr. Sep-Oct.
Home