Shrubs 4–7 cm tall, rarely to 12 cm. Stems suberect, glabrous. Leaves assurgent; leaf blade elliptic, 2–2.5 × ca. 1.2 mm, leathery, abaxially convex, densely setulose, adaxially ?convex, glabrous, base truncate, margin 0.3–0.4 mm wide and membranous, apex acute. Flower nutant. Pedicel 0.7–2 cm, densely crisped-tomentose. Calyx dark purple; lobes oblong to elliptic, 2.5–3 mm, abaxially glabrous, margin membranous and ciliolate. Corolla white, tinged with red, campanulate, 5–8 mm, glabrous; lobes erect, broadly triangular, 1.5–2 mm. Stamens 10, ca. 2 mm; filaments pilose; awns ca. 1 mm. Ovary ca. 1.5 mm in diam. Capsule globose, ca. 3 mm in diam., ± enclosed by persistent corolla. Fl. May–Sep, fr. Jun–Oct.
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