药用唇柱苣苔 yao yong chun zhu ju tai

Perennials, stemless. Rhizome internodes inconspicuous. Leaves basal, opposite; petiole 5-25 X 5-8 mm; leaf blade narrowly ovate to elliptic, 3.5-7 X 2-3.5 cm, papery to herbaceous, adaxially with dense, short and long hairs, eglandular, abaxially velutinous, base oblique, cuneate, margin entire to repand, apex acute; lateral veins ca. 5 on each side of midrib, inconspicuous. Cymes 3-7-flowered; peduncle 8.5-11 cm, villous and glandular puberulent; bracts 2, free, lanceolate-linear, 4-7 X 1-1.2 mm, villous, margin entire, apex acute. Pedicel 3-15 mm, villous and glandular puberulent. Calyx 5-sect from base; segments equal, lanceolate-linear, 3.5-4 X 0.8-1 mm, outside puberulent, inside glabrous, margin entire, apex acute. Corolla white, tinged pink, 1.7-2.1 cm, outside sparsely puberulent, inside basally sparsely puberulent; tube nearly tubular, 1.3-1.5 cm X 5-6 mm; adaxial lip ca. 3 mm; abaxial lip ca. 6 mm. Filaments ca. 9 mm, glabrous; anthers fused by entire adaxial surfaces, ca. 2.2 mm, pubescent; staminodes 2, 1.5-2.5 mm. Pistil 1.3-1.8 cm, densely puberulent; ovary ca. 7 mm. Stigma obdeltoid, ca. 1 mm, 2-lobed. Capsule erect, ca. 1.5 mm. Fl. Apr.

* Rocky crevices of limestone hills. Guangxi (Pingle Xian).