Shrubs 1-2 m tall. Stems straw colored, bark peeling; branches sparsely pubescent to subglabrous, yellow-brown when dry. Leaves opposite; petiole ca. 5 mm; leaf blade ovate-lanceolate, 4-7 × 2-2.5 cm, sparsely pubescent adaxially, sparsely white pubescent and glandular abaxially, base slightly asymmetrical, rounded to cordate, margin shallowly serrate to subentire, ciliate, apex acuminate. Cymes 1-flowered; peduncle slender, 1-2.5 cm; bracteoles 2, at midpoint of pedicel, linear, ca. 5 mm. Pedicel ca. 3 mm. Calyx campanulate, ca. 2.3 cm, papery, with sparse white cilia outside, glabrous inside, tube ca. 1 cm; teeth 5, lanceolate, margin white ciliate, apex acuminate, spine tipped. Corolla ca. 3 cm, creamy white, tinged purple or red with purple lines on tube, sparsely pubescent outside, glabrous inside; tube ca. 2.2 cm, gradually dilated at apex; upper lip oblate, ca. 5 × 8 mm, emarginate; middle lobe of lower lip largest, ca. 8 × 7 mm, lateral lobes ca. 5 mm wide. Filaments puberulent. Style equally 2-cleft. Fl. Jul.
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