Herbs annual or biennial, glandular pubescent. Stems solitary or tufted, erect, brown, 10-15 cm; branches many, declinate, base ± woody. Leaves alternate; petiole 4-8 mm; leaf blade triangular to broadly triangular-ovate, 7-15 × 7-9 mm, base broadly cuneate to truncate, apex acute. Cyme lax, sometimes 1-branched. Flowers unequally 5-merous; pedicel 5-10 mm. Sepals lanceolate to oblong, 1-2 mm, apex acuminate. Petals yellow, lanceolate to oblong, 3-5 mm. Stamens 10, shorter than petals. Nectar scales broadly spatulate to cuneate, ca. 0.3 mm, apex emarginate. Carpels suberect, oblong, ca. 4 mm. Styles short. Follicles basally connate, apically divergent. Seeds brown, oblong-ovoid, longitudinally striate. Fl. Jun-Aug, fr. Aug-Sep.
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