Erect or climbing shrubs; branches terete, moderately to densely villous or hirsute. Leaves opposite; petiole 4-10 mm, hirsute or villous; blade drying membranous to papery, green to brownish, paler below when specimen well preserved, elliptic to ovate, 2.5-21 × 4-11 cm, both surfaces moderately strigillose to pilose on lamina and moderately to densely strigillose to hirsute along principal veins, base cuneate to obtuse, truncate, or rounded, apex acute to acuminate; secondary veins 6-8 pairs, without domatia, tertiary venation reticulate; stipules generally persistent, ovate, 7-12 × 6-12 mm, moderately to densely hirsute or pilose, entire to deeply 2-lobed, segments acute to acuminate. Inflorescences subcapitate to congested-cymose or sometimes with axes later elongating, 2-6 × 2-8 cm, hirsute, sessile to subsessile; bracts lanceolate, 0.5-1 cm, obtuse to acuminate or 2-or 3-parted. Flowers subsessile, biology not noted. Calyx with hypanthium portion campanulate to obconic, 3-4 mm, densely brown strigose to-sericeous; lobes lanceolate, ligulate, or oblanceolate, 7-18 × 3-4 mm, often markedly unequal on an individual flower, densely brown strigillose to-strigose, acute, with 1 lobe on 1 to several flowers on each inflorescence sometimes expanded into white calycophyll, blade ovate or rhombic, 5-7 × 3.5-4 cm, both surfaces sparsely hirsute to glabrescent on lamina and moderately to densely pilosulous to puberulent on principal veins, base obtuse to truncate, stipe 25-37 mm, apex obtuse to shortly acuminate. Corolla orange-yellow, salverform, outside densely spreading villous; tube ca. 22 mm; lobes ovate, 5-7 mm (to 10 mm in other regions), acute to acuminate. Berry ellipsoid, 10-12 × 10-12 mm, strigose, lenticellate, calyx limb deciduous. Fl. Jul-Sep.
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