Herbs perennial. Sterile stems creeping, slender, rooting at nodes. Flowering stems erect, slender, 8-10 cm. Leaves 3-verticillate or apical ones opposite; leaf blade linear, 5-10 mm, base shortly spurred, apex obtuse and retuse. Cyme usually 3-branched, corymbiform, 3-5 cm, few flowered; bracts leaflike, linear. Flowers sessile, unequally 5-merous. Sepals linear-ovate, 2-3 mm, base shortly spurred, apex obtuse and retuse. Petals yellow, ovate-lanceolate, 5-6 × 1-1.5 mm. Stamens 10, shorter than petals; antepetalous ones inserted ca. 1 mm from petal base; anthers brown. Nectar scales subquadrangular, ca. 0.6 mm. Carpels ovoid-lanceolate, ca. 6 mm, base connate for ca. 2 mm, apex divergent; ovules ca. 10. Styles ca. 2 mm. Follicles divaricate. Seeds dusky, oblong, ca. 0.8 mm, minutely mammillate. Fl. Apr-May.
Home