Herbs annual, glabrous. Stems branched from base, erect, 1-3 cm. Leaf blade oblong, 1.5-3.5 mm, basal spur entire and subtruncate or ± 2-cleft, apex acuminate to spinose-cuspidate. Cymes terminal or axillary, 1-or 2-flowered; bracts broadly lanceolate, apex subacute. Flowers unequally 4-or 5-merous or irregular, shortly pedicellate. Sepals oblong, unequal, 2.8-3.2 mm, base obtusely spurred, apex cuspidate. Petals free, yellowish, subovate, 2-2.3 mm, apex obtuse. Stamens 8-10; antesepalous ones 1.8-2 mm; antepetalous ones inserted ca. 0.5 mm from petal base. Nectar scales linear-spatulate, ca. 1 mm, apex obtuse. Carpels 3 or 4(or 5), ovoid, 2-2.8 mm, base subconnate, apex abruptly narrowed. Styles short. Follicles 4-8-seeded. Seeds subovoid, ca. 0.8 mm, smooth or minutely papillate. Fl. Aug, fr. Aug-Sep.
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