Shrubs climbing. Stems terete, obscurely striate, villous. Petiole 1-4 cm, densely brown villous; leaf blade oblong to ovate-oblong, rarely ovate-lanceolate, 6-16 × 3.5-5 cm, leathery, abaxially densely brown or gray pubescent, adaxially villous along veins, veins pinnate, 4-6 pairs, base rounded, apex acute or obtuse. Racemes on old woody stems, 2-4-flowered, 4-6 cm. Pedicel 5-7 cm, pendulous, densely villous; bractlets subulate, 3-8 × ca. 1 mm. Calyx purple with yellow blotches, throat white; tube horseshoe-shaped, abaxially densely villous; basal portion of tube 40-50 × 8-10 mm; limb subrotund-peltate, 4-6 cm in diam., shallowly 3-lobed; lobes equal, acute. Anthers oblong, 4-5 mm. Gynostemium 3-lobed. Capsule 5-10 × 3-5 cm, dehiscing basipetally. Seeds ovoid-deltoid, 5-7 × 3-4 mm. Fl. Apr-May, fr. Jul-Sep.
Can be grown by cuttings or seedlings. Seeds needs soaking.
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