Didymocarpus stenanthos C. B. Clarke

Stems 3-22 cm, puberulent. Leaves opposite; petiole 0.3-3.3(-4.7) cm; leaf blade slightly oblique, ovate to elliptic or obovate, 2-11.5(-15) X 1.8-6.8 cm, herbaceous, adaxially puberulent, eglandular, abaxially puberulent along veins, eglandular, base oblique, cuneate to cordate, margin double or single denticulate to serrate, apex acute, rarely obtuse to rounded; lateral veins 6-8 on each side of midrib. Cymes 6- to many flowered; peduncle 2.5-8 cm, glandular puberulent to nearly glabrous; bracts connate at base or free, broadly ovate, 3-4 mm, sparsely glandular puberulent, margin entire. Pedicel 2-6(-13) mm. Calyx zygomorphic, 4.2-5 mm; limb 2-lipped; tube ca. 2.6 mm; adaxial lip 3-lobed, depressed trapeziform, ca. 1.2 mm; abaxial lip 2-lobed, depressed trapeziform, ca. 1.8 mm, all lobes broadly ovate, 1-1.5 X 0.8-1 mm, glabrous, margin entire. Corolla purple, 2-2.4 cm, glabrous; tube cylindric, 1.5-1.8 cm X 3-4 mm; adaxial lip ca. 3.5 mm; abaxial lip ca. 4.5 mm. Filaments ca. 3.5 mm, glabrous; anthers ca. 1.5 mm, puberulent; staminodes 3, 0.3-0.8 mm. Pistil ca. 1.9 cm, glabrous; ovary ca. 1.5 cm. Capsule 2.5-4 cm. Fl. Jun-Sep, fr. Aug.

Guizhou, W Sichuan, E Yunnan.

* Rocks and cliffs in valleys; 700-2800 m.