Shrubs, small to high-climbing, deciduous. Branches blackish brown or yellowish gray, sometimes young branchlets long-and rusty tomentose, glabrous when mature; pith white, lamellate. Petiole 1-2.5 cm, glabrous or occasionally slightly reddish brown tomentose; leaf blade abaxially glaucous, adaxially green, lanceolate to oblong-elliptic to obovate-lanceolate, or ovate to broadly ovate to suborbicular, 7-17 × 1.8-5 cm, abaxially glabrous, or sometimes puberulent on midvein and lateral veins, adaxially glabrous, occasionally sparsely strigillose when young, midvein and lateral veins raised and distinct abaxially, subconspicuous adaxially, lateral veins 6 or 7 pairs, reticulate veinlets subconspicuous abaxially, inconspicuous adaxially, base obtuse to auriculate-cordate, usually distinctly oblique, margin finely serrulate, apex abruptly acuminate to long acuminate. Inflorescences cymose, 1-3-flowered, glabrous or slightly reddish brown tomentose; peduncle 2-10 mm; pedicels 3-5 mm; bracts subulate, 2-4 mm. Flowers reddish. Sepals 5, ovate, 3-5 mm. Petals 5, obovate, 4-6 mm. Filaments 1.5-4 mm; anthers yellow, 1.5-2 mm, slightly sagittate at base, rounded at apex. Ovary cylindric, 2.5-3 mm, pellucid-pilose. Fruit grayish green, cylindric or ovoid-cylindric, 1.5-1.8 cm; persistent sepals reflexed or not. Seeds small, ca. 1 mm. Fl. Apr-Jun, fr. Nov. 2n = 58*.
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