Flowering stems erect, ascending, or arched-ascending, slender, 3-10(-20) cm. Leaves alternate, linear, 4-9 × 0.9-1.3 mm, base slightly broadened and with a 3-lobed spur, apex spinose-apiculate. Cyme corymbiform, with several or many crowded flowers; bracts leaflike. Flowers unequally 5-merous; pedicel 0.4-0.8 mm. Sepals linear, unequal or rarely equal, 4-8 × 0.9-1.1 mm, base connate and spurless, apex spinose-apiculate. Petals yellow, lanceolate to oblong, 5-8 × ca. 1.5 mm, base connate for 1-1.5 mm, margin markedly erose, apex mucronate. Stamens 10; antesepalous ones 1.5-2 mm; antepetalous ones 1.4-1.5 mm, inserted 1.5-2 mm from petal base. Nectar scales linear-spatulate, apex subrounded. Carpels erect, narrowly ovoid, apex acuminate; ovules ca. 10. Seeds obovoid-oblong, mammillate. Fl. Aug, fr. Sep-Oct.
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