Herbs annual, glabrous. Roots shortly fibrous. Stems branched from base, erect, 2-6 cm. Leaf blade linear-lanceolate to linear-obovate, 4-8 mm, base obtuse and shortly spurred, apex subacute to subobtuse. Cyme corymbiform, ± dense, 5-15-flowered; bracts linear-obovate to linear-lanceolate. Flowers unequally 5-merous; pedicel 3-4 mm. Sepals oblong to linear-lanceolate, 2.5-4.5 mm, base obtuse and shortly spurred, apex subacute. Petals free, yellow, ± narrowly oblong to subobovate-oblong, 4-6 mm, apex obtuse. Stamens 10; antepetalous ones inserted 1-1.5 mm from petal base. Nectar scales linear-spatulate, 0.5-0.7 mm, apex subobtuse. Carpels erect, base connate for 0.6-1.6 mm. Styles long. Follicles lanceolate, 4.5-5 mm, 4-or 5-seeded; placenta subfalcate. Seeds ovoid, ca. 1.2 mm, mammillate; funicle long. Fl. Jul, fr. Aug.
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