Shrubs, drying green. Stems subterete, glabrous. Petiole 1-2.5 cm, glabrous; leaf blade ovate to elliptic, to 7-16 × 3-6 cm, glabrous, adaxially with cystoliths, secondary veins 8-11 on each side of midvein, base cuneate, margin crenate-dentate, apex acuminate. Inflorescences axillary, spikes, 5-8 cm; bracts ovate-triangular, 6-9 × ca. 2 mm, glabrous, midvein abaxially lined by cystoliths, margin sparsely ciliate, apex acuminate; bracteoles narrowly ovate, ca. 3.5 × 1 mm, margin sparsely ciliate, apex acuminate. Flowers basally ca. 1.5 cm apart on rachis but apically somewhat confluent. Calyx 5-lobed to base; lobes lanceolate, ca. 7 × 1 mm, equal, margin minutely ciliolate, apex acuminate and shortly apiculate. Corolla purple, 2.5-3.4 cm, outside glabrous, inside glabrous except for trichomes retaining style; tube basally cylindric and narrow for ca. 5 mm then bent and abruptly widened to 1-1.2 cm at mouth; lobes oblong-ovate, ca. 5 × 4 mm. Stamens 4, included; filaments pilose, shorter pair ca. 4 mm, longer pair ca. 6 mm; anther thecae oblong, ca. 2 × 1 mm; pollen type 3. Ovary sparsely pilose; style ca. 2.8 cm, sparsely pilose. Capsule unknown. Fl. Jul.
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