横蒴苣苔 heng shuo ju tai

Slackia tonkinensis Pellegrin, Bull. Soc. Bot. France 73: 428. 1926; Beccarinda sinensis (W. Y. Chun) B. L. Burtt; Slackia sinensis W. Y. Chun.

Herbs, perennial, stemless. Leaves basal; petiole (2-)4-13 cm; leaf blade ovate to orbicular, 3-12 X 2.5-8.5 cm, adaxially whitish to brownish hirsute, abaxially short whitish to brownish hirsute, base cordate, rarely rounded, margin coarsely crenate, apex rounded to obtuse; lateral veins 5 or 6 on each side of midrib. Peduncle (5-)7-17 cm, brownish hirsute; bracts broadly ovate, 3-5 X 3-4 mm, outside nearly glabrous, inside pubescent to hirsute. Calyx segments ovate to obovate, 2-4.5 X 1.5-2.5 mm, outside sparsely pubescent. Corolla blue-purple, (0.7-)1-1.6 cm, outside sparsely puberulent; tube ca. 5 mm; adaxial lip lobes ca. 3 mm; ones of abaxial lip ca. 5 mm. Filaments ca. 3 mm; anthers ca. 1.5 mm. Pistil glabrous; ovary ca. 2 mm. Style ca. 6 mm. Capsule 1.5-2.5 cm. Fl. Apr-Jun, fr. May-Sep.

Rocks on forested slopes; 700-2400 m. Guangxi, S Guizhou, S Sichuan, SE Yunnan [N Vietnam].