Shrubs ca. 1.5 m tall. Stems with peeling bark; branches brown, puberulent. Leaves in whorls of 3; petiole 3-4 mm, puberulent; leaf blade ovate-lanceolate, 5-6 × 2-2.5 cm, sparsely puberulent, densely so along midrib adaxially, glandular and pubescent along veins abaxially, base subrounded, margin serrate, apex acuminate. Cymes (2-or) 3-flowered; peduncle ca. 1 cm; bracteoles linear, ca. 5 mm. Pedicel 1-4 mm. Calyx campanulate, ca. 2 cm, densely pubescent, glandular outside, glabrous inside, tube ca. 1 cm; teeth 5, triangular, apex spinescent-acuminate. Corolla cream yellow, ca. 3.5 cm, puberulent, glandular outside, glabrous inside; tube ca. 2 cm, dilated in throat; upper lip ovate, ca. 1 cm, emarginate, lateral lobes ovate. Style equally 2-cleft at apex. Fl. Aug.
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