Shrubs erect, 0.5–2 m tall, glabrous. Twigs terete, often flexuous. Leaves scattered; petiole 3–8 mm; leaf blade ovate, elliptic, or oblong-lanceolate, 4–14.5 × 2–6.5 cm, papery, rarely thickly so, abaxially inconspicuously papillate, secondary veins 3 or 4 pairs, fine veins raised abaxially, slightly raised or slightly impressed adaxially, base obtuse to rounded or subcordate, margin serrate, apex acuminate to caudate-acuminate. Inflorescences axillary, racemose, 3–6(–10) cm, (1–)4–12-flowered, slender, often flexuous; bracts triangular-lanceolate, ca. 2.5 mm. Pedicel usually recurved, 3–9 mm; bracteoles apical, broadly ovate, densely ciliolate. Calyx lobes broadly triangular, ca. 1.5 mm, ciliolate. Corolla white, campanulate, 6–7 mm; lobes triangular, 1.5–2 mm. Filaments spindle-shaped, ca. 1.8 mm, papillate, glabrous; anthers 0.8–1.2 mm, thecae 2-awned. Ovary densely sericeous. Calyx at fruiting purplish black; capsule globose or depressed-globose, 4–7 mm in diam., tomentellous. Fl. May–Sep, fr. Jun–Dec.
Montane forest and in open, exposed places among brushwood or shrubs at 500-3,300 metres. It is fairly common on the margins of craters, steep slopes, on stony, volcanic or sometimes peaty and generally poor soils.
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Montane forest and in open, exposed places among brushwood or shrubs at 500-3,300 metres. It is fairly common on the margins of craters, steep slopes, on stony, volcanic or sometimes peaty and generally poor soils.
Can be grown by cuttings or seedlings. Seeds needs stratification.