Scandent shrub. Branches c. 6 mm ø, twisted, sulcate, glabrous. Leaves chartaceous, broad-ovate or deltoid in outline, 13.5-15 by 11.5-15 cm; apex obtuse or acute; base cordate or shallowly cordate, lobes rounded, the sinus 2-2.5 cm deep, 7-9 cm at the widest part; glabrous on both surfaces; basal nerves 1 pair, curved, ascending to the apex, each basal nerve branched quite near the base, thus almost forming another basal pair, elevated and prominent below, distinct sometimes slightly depressed above; veins loosely reticulate or transverse, slightly elevated below, faint above; petiole 4.5-6.5 cm, glabrous. Inflorescences in the axils of foliage leaves, racemi-form, up to 6 cm long, sparsely puberulous or almost glabrous; bracts ovate, c. 4 mm long, densely shortly hairy on the margin. Pedicel and ovary 8-20 mm, glabrous. Perianth deep crimson, white at base, limb pinkish, edge crimson, straight, with distinct, longitudinal and reticulate veins, glabrous outside, utricle ellipsoid, 10-15 by 5-8 mm, with a stipe of 3 mm, sparsely hairy inside, glandular bodies 2, ellipsoid, c. 2 mm long; tube 16-19 mm long, with scattered, glandular hairs inside; limb 1-lipped, obovate-oblong 20-25 by 10-14 mm, apex slightly retuse or mucronate, with scattered, glandular hairs on the upper surface. Stamens 6; anthers ellipsoid or oblong, c. 0.7 mm long. Style column c. 4.5 mm long, 6-lobed; lobes with basal parts united, projecting and forming an annular ring. Capsules unknown.
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