Herbs perennial. Rootstock branched, prostrate, cordlike, long, woody. Stems branched, creeping, decumbent; sterile shoots short, densely leafy. Flowering stems to 30 cm. Leaves alternate; leaf blade spatulate-elliptic to obovate, 1.5-3 × 1-2 cm, base cuneate, margin obtusely serrate, apex obtuse. Inflorescence terminal, 3-5 cm in diam. Flowers unequally 5-merous. Sepals often subequal, linear to suboblong, 4-8 mm. Petals yellow, lanceolate, 8-10 × ca. 4 mm. Stamens 10; anthers orange. Nectar scales small, transversely wide. Carpels divergent, yellowish green. Styles slender. Follicles initially suberect, stellately divergent at maturity, ellipsoid, 8-10 mm, base connate for ca. 2 mm. Seeds ellipsoid, less than 1 mm. Fl. Jun-Jul, fr. Aug-Oct.
Flowering stems creeping, 0.5-3 dm. Leaves alternate; blade spatulate-elliptic to obovate, 1.5-3 cm, margins not glandular, obtusely crenate. Flowers: sepals linear to suboblong, 3-5 mm, apex obtuse; petals spreading, yellow, lanceolate, 8-10 mm, apex acute, minutely apiculate. Carpels divergent in fruit, connate basally.