Roots fibrous. Flowering stems branched from base, divergent, slender, 2.5-5 cm. Leaf blade linear-triangular, 3.5-5.2 × 1.1-1.8 mm, basal spur 3-lobed. Cyme corymbiform, 2-5-flowered; bracts leaflike. Flowers unequally 5-merous; pedicel 1.2-1.5 mm. Sepals yellowish green, suboblong to obovate-linear, 7-7.5 × ca. 2 mm, base 3-lobate and obtuse, apex obtuse to subcute. Petals yellow, obovate-oblong, base slightly narrowed and connate for ca. 0.8 mm, apex obtuse and shortly mucronate. Stamens 10, all shorter than petals; antepetalous ones inserted 2.5-3.5 mm from petal base. Nectar scales linear-spatulate, apex obtuse. Carpels 4-6.5 mm, base connate for 0.5-0.8 mm; ovules 4-6. Seeds obovoid, mammillate. Fl. Sep, fr. Oct.
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