Stem simple, 3-7 cm tall, glandular pilose. Leaf buds present in leaf axils. Proximal leaves few, scalelike, lanceolate, 5.7-6 × 1-1.2 mm, both surfaces glabrous, distal margin cartilaginous setose-ciliate, apex acute. Median cauline leaves crowded; petiole ca. 2 mm, margin ciliate; leaf blade oblong to narrowly so, 5-10.5 × 1.5-2.1 mm, both surfaces glabrous, base tapered into petiole, margin cartilaginous setose-ciliate, apex acute, rigidly aristate; distal leaves with petiole shortened to absent, leaf blade glandular hairy abaxially and at margin. Flower solitary or cyme 2-flowered; pedicels 0.5-1.5 cm, glandular pilose. Sepals erect to rather spreading, narrowly ovate, 3.5-5 × 1.5-2 mm, leathery, abaxially and marginally glandular hairy, veins 3, confluent at apex, apex rigidly aristate. Petals yellow, elliptic or ovate to narrowly obovate, 5.5-7 × 2-3.5 mm, 6-9-callose, 4-or 5-veined, margin sometimes with a few glandular hairs at base, base with a claw 0.6-1 mm, apex obtuse or acute. Stamens 4.4-6.5 mm. Ovary subsuperior, ovoid, 2-3 mm; styles 1-2 mm. Fl. Jul-Aug.
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