Subshrubs branched from base, erect or arcuate-ascending, 30–40 cm tall. Twigs terete, narrowly striate, with long rust-colored setose hairs. Leaves scattered; petiole 1–3 mm, setose; leaf blade usually ovate, rarely oblong-or elliptic-ovate to broadly ovate, 2–3.5 × 1.5–2 cm, papery, abaxially sparsely setulose or glabrescent, adaxially glabrous, secondary veins 2 pairs arising near or above base and arcuate, fine veins raised abaxially, base rounded or subtruncate, margin subentire or inconspicuously serrulate, long ciliate, apex shortly and abruptly callose-apiculate or-cuspidate. Inflorescences shortly corymbose-racemose, 2–10 mm, 3–8-flowered, glabrous; bracts ovate, 1–2 mm, cucullate, abaxially carinate, ciliate. Pedicel spreading, ca. 6 mm; bracteoles similar to bracts but smaller, subbasal. Calyx lobes triangular or ovate-triangular, ca. 3 mm. Corolla white, campanulate, 5–6 mm; lobes recurved, broadly triangular, 2–3 mm. Filaments subulate, ca. 1 mm, papillose; anthers ca. 1 mm, with thecae 2-awned. Ovary ca. 1 mm, glabrous. Calyx at fruiting dark purple; capsule glabrous.
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