Shrubs, 0.5-1 m tall; branchlets terete, slender and firm, densely pubescent. Petiole 3-6 mm, densely pilose; leaf blade papery or thinly papery, when dry turning black adaxially, pale brown abaxially, elliptic to oblong or ovate to lanceolate, 10-40 × 5-20 mm, scattered with sparse appressed pubescence adaxially, villous on midrib and lateral veins abaxially, base cuneate to broadly cuneate, apex acute or acuminate; lateral veins 4 or 5 pairs, slender, conspicuous abaxially; stipules ca. 1.5 mm, broadly triangular at base, sometimes with stipitate glands on margins, with a stiff acicular apiculus at apex. Short-styled flowers 2-5 fascicled on tips or axillary on upper portion of branchlets; pedicels usually 2-6 mm, sometimes up to 8 mm, pilose; bracteoles 2, small, ca. 1.2 mm, ca. 1/3 of lower portion connate, lobes triangular, ca. 7 mm, pubescent. Calyx tube ca. 2 mm, glabrous; lobes 5, triangular, ca. 0.4 mm, margins hirsute, apex acute. Corolla funnelform or broadly funnelform, ca. 0.4 mm, brown tomentose outside, white villous on throat inside, or glabrous on both sides; lobes 5, triangular-oblate, 3-3.5 × ca. 4 mm, margins thin and broad, apex obtuse. Stamens 5, inserted in throat of corolla tube; filaments ca. 2 mm; anthers ca. 2.5 mm, exserted. Style extended to middle of corolla tube; stigmas 4-lobed, lobes 0.5-0.6 mm. Fl. May-Jun.
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