Stem simple, 2.5-9.5 cm tall, proximally glabrous, distally glandular hairy or glabrous. Leaf buds present only in axils of rhizome scales. Leaves crowded along stem, sessile, ovate or oblong to linear-oblong, 5-11 × 3-6 mm, both surfaces glabrous, margin cartilaginous eglandular setose-ciliate, apex acute, rigidly aristate. Flower solitary; pedicel 5-7 mm, glandular hairy or glabrous. Sepals erect, ovate to broadly so, 4-6.5 × 2-5 mm, abaxially and marginally glandular hairy or glabrous, veins 5 or 6, not or partly confluent at apex, apex acute. Petals yellow, broadly ovate to orbicular, 6-11 × 4.5-9 mm, not callose, 5-9-veined, base abruptly contracted into a claw 1-2 mm, margin glandular ciliate, eglandular setose-ciliate, or glabrous, apex rounded. Stamens 4-5.5 mm. Ovary subsuperior, 3-4.5 mm; styles 2.5-3.7 mm. Fl. Jul-Sep. 2n = 16*.
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