Herbs, perennial, 15-30 cm tall. Roots woody. Stems much branched, spreading or prostrate. Stipules widely triangular, membranous, margin serrate. Leaves with 2-6 leaflets; petiole 1-2 cm, compressed; leaflet blades narrowly oblong, oblong, or oblanceolate, 1-2.5 cm × 3-5 mm. Flowers axillary, solitary or paired. Pedicel 4-7 mm. Sepals oblong-obovate, 7-8 mm, margin membranous. Petals obovate, nearly as long as sepals. Stamens unequal, 5-10 mm; appendages only on apical part of stamens, oblong-linear. Capsule cylindric, 2.5-4 cm × 4-5 mm, pendulous, falcately curved, with acute ridges, apex acuminate to acute. Seeds oblong-lanceolate, 4-5 × ca. 1.5 mm, scabrous, apex acute. Fl. Apr-May, fr. Jun-Jul.
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