Shrubs deciduous, 1-3(-4) m tall. Branchlets slender, pubescent at base, thickened, lenticels numerous and conspicuous; spur branchlets 3-5 mm, rugose with persistent scales and leaf scars. Stipules persistent, deltoid, minute; petiole 5-11 mm, adaxially narrowly sulcate, pubescent; leaf blade abaxially greenish, adaxially green, obovate, 2-5(-6) × 1-3(-3.5) cm, membranous or thinly papery, both surfaces sparsely pubescent, or glabrescent except on veins puberulent, midvein impressed adaxially, lateral veins 4 or 5 pairs, raised abaxially, flat adaxially, anastomosing near margin, reticulate veins obscure on both surfaces, base cuneate and attenuate, margin serrate, apex acute or very shortly acuminate, rarely obtuse. Inflorescences: cymes, solitary, axillary on scales or leaves; flowers white, fragrant, 4- or 5-merous. Male inflorescences: cymes of order 2, 3-flowered; peduncles 0.5-2 mm; pedicels 1.5-3 mm, glabrous; bracteoles 2, basal, deltoid, ciliate; calyx patelliform, ca. 2.5 mm in diam., deeply 4-lobed, lobes broadly deltoid, ciliate; corolla rotate, ca. 7 mm in diam., petals orbicular-ovate, ca. 3 mm in diam., basally slightly connate, margin erose, sparsely ciliate; stamens 4 or 5, anthers oblong; rudimentary ovary ovoid, rostellate, apex lobed. Female inflorescences: 1-flowered cymes; pedicels 3-4 mm; bracteoles 2, basal, ciliate; calyx and corolla as in male flowers; staminodes ca. 2/3 as long as petals, sterile anthers sagittate; ovary ovoid, ca. 1.5 mm in diam., stigma thickly discoid, shallowly 4-lobed. Fruit black, globose, ca. 7 mm in diam., longitudinally angular and sulcate when dry; persistent calyx explanate, subquadrangular; persistent stigma discoid, 4-lobed; pyrenes 4, ellipsoidal, ca. 6 mm, ca. 2.5 mm in diam., ends acute, abaxially deeply rugose and reticulately striate and sulcate, endocarp bony. Fl. Apr-May, fr. Jun-Sep.