Erect shrub, up to 2 m high. Branches terete or slightly angular, c. 1 cm ø, pubescent. Leaves charta-ceous or subcoriaceous, elliptic, lanceolate, obovate-oblong, or oblanceolate, 20-30 by 8.5-16 cm; glabrous above, pubescent beneath; apex acute or acuminate; base cuneate or rounded; basal nerves 2 pairs, emerging from the base, the inner one ascending upward reaching to c. ⅔ or higher, similar to the lateral ones, the outer one weak and short; lateral nerves 6-8 pairs, prominently elevated beneath, slightly elevated above; veins transverse, scalariform, connected by crossbar-like or reticulate vein-lets, elevated beneath, often faint above; petiole 5-17 mm, pubescent. Inflorescences in the axils of foliage leaves, racemi-or paniculiform, up to 5 cm long, pubescent; bracts ovate, lanceolate, or linear, 3-6 mm long, puberulous. Pedicel and ovary 1.25-2 cm, densely pubescent or velvety. Perianth magenta or violet, campanulate, slightly contracted at the lower part, 1.5-2 cm long, suborbicular or six-angular in outline, 2.5-3.5 cm ø, densely pubescent outside, inner surface densely covered with glandular hairs and appearing mat-like; obscurely lobed, lobes triangular, 5-10 by 16-30 mm, apex acute or mucronate. Stamens in 2 whorls, upper row 6-10, lower 10-14; filaments glabrous, c. 1 mm; anthers oblong, c. 1 mm long. Style column c. 2 mm long; lobes 5-13, c. 1.5 mm, glabrous. Capsules slender, rather long, 15-25 cm long, slightly curved or twisted, 4-angular, densely pubescent or velvety. Seeds oblong, 4-5 by 2 mm, trigonous, coarsely granulate.
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