Climbing shrubs; branches subterete, grayish brown tomentose becoming glabrescent. Leaves opposite; petiole to 4 cm, glabrous; blade drying papery, adaxially dark green, abaxially pale green, broadly ovate or elliptic-ovate, 6-15 × 3-7.5 cm, both surfaces densely pubescent and villous along veins, base acute or rounded, apex acuminate; secondary veins 8 or 9 pairs; stipules triangular, ca. 6 mm, abaxially hispidulous, adaxially densely hirsute, 2-lobed. Inflorescences laxly cymose; bracts lanceolate; pedicels 2-3 mm. Flowers sessile or lateral flowers pedicellate (or on expanded axes), biology not noted. Calyx with hypanthium campanulate, ca. 4 mm, sparsely pubescent; lobes linear-lanceolate, 5-7 mm, densely pubescent, with ?1 lobe on 1(or ?more) flower per inflorescence expanded into calycophyll, blade ovate, ca. 6 × 5-6 cm, densely pubescent along veins, base obtuse, stipe ca. 2 mm, apex acute. Corolla orange-yellow, salverform, outside pubescent; tube ca. 23 mm, densely yellow clavate pubescent inside upper part; lobes rounded, ca. 5 mm, adaxially yellow papillose. Berry globose, 8-9 × 8-9 mm, calyx limb deciduous. Fl. Jun-Jul, fr. Aug.
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