Stem simple, 1.5-2.5 cm tall, glabrous. Leaf buds present in axils of proximal nodes, developing into sterile shoots by anthesis. Leaves crowded along stem, shiny, oblong to linear-oblong, 5-6.5 × 1.3-1.5 mm, rigid, both surfaces glabrous, base gradually narrowed, margin cartilaginous eglandular setose-ciliate, apex acute, aristate-mucronate. Flower solitary, subsessile; pedicel glabrous. Sepals erect, narrowly ovate to linear-lanceolate, 4.5-5.5 × 1-1.9 mm, both surfaces glabrous, veins 4 or 5, confluent at apex, margin cartilaginous glandular ciliate, apex aristate-mucronate. Petals yellow, oblong to oblanceolate, 7-7.5 × 2-3 mm, not callose, 5-or 6-veined, base cordate with a claw 2.2-3.1 mm, apex acute. Stamens 4.3-4.4 mm. Ovary subsuperior; styles 1.4-2.6 mm. Fl. Jul-Aug.
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