长萼冠唇花 chang e guan chun hua

Herbs. Stems ca. 1.5 m tall, usually glabrescent, glandular puberulent. Petiole to 6.5 cm; leaf blade oblong-ovate, 9.5-12 × 5-8 cm, adaxially sparsely minutely hispid, abaxially spreading hispid on veins, base truncate-cuneate, margin coarsely dentate, apex acuminate. Cymes subterminal, in panicles to 12 × 3 cm, few flowered, crowded; peduncle ca. 1 cm; bracts 2-5 mm. Calyx ca. 1.2 cm, narrowly campanulate, densely short yellow glandular hairy, margins sparsely 2- or 3-septate hispid; teeth ca. 6 mm, subulate, apex caudate-acuminate, posterior tooth to 8 mm. Corolla yellow, ca. 2.7 cm, puberulent outside; tube straight, ca. 1.9 cm, throat 5-6.5 mm wide; upper lip straight, ca. 7 mm, apex emarginate; lower lip dark yellow, spreading; middle lobe ovate-orbicular, ca. 4 × 2.5 mm; lateral lobes ovate-triangular, ca. 1/2 as long as middle lobe. Nutlets dark-brown, flattened, triquetrous, obovoid, ca. 1.8 mm.

* Dense forests on shady slopes; ca. 2300 m. Sichuan.