偏瓣花 pian ban hua

Sonerila esquirolii H. Léveillé, Bull. Soc. Bot. France 54: 368. 1907; Allomorphia blinii (H. Léveillé) Guillaumin; A. flexuosa Handel-Mazzetti; Barthea blinii H. Léveillé; Oxyspora serrata Diels; Plagiopetalum blinii (H. Léveillé) C. Y. Wu ex C. Chen; P. esquirolii var. septemnervium C. Chen; P. esquirolii var. serratum (Diels) C. Hansen; P. henryi (Kraenzlin) S. Y. Hu; P. quadrangulum Rehder; P. serratum (Diels) Diels; P. serratum var. quadrangulum (Rehder) C. Chen; Sonerila henryi Kraenzlin.

Shrublets 50-70(-200) cm tall. Stems usually 4-sided, narrowly winged when young, slightly setose and puberulous on wings otherwise glabrous, often subterete when mature. Petiole (0.4-)2-20 cm, densely squamose and patently setose or densely puberulous and shortly setose; leaf blade lanceolate, ovate-lanceolate, or rarely elliptic, 2-14 × (0.7-)2.5-6.5 cm, membranous to papery, abaxially glabrous except densely puberulous and sparsely strigose on veins, adaxially glabrescent or sparsely puberulous and very sparsely strigose, secondary veins 1-3 on each side of midvein, base obtuse to rounded, margin serrulate to subentire but sparsely setose ciliate, apex acuminate. Inflorescences terminal or axillary, remotely cymose or a compound umbellate corymb, 1.5-8.5 cm, usually squamose and glandular setose. Pedicel 6-10 mm, finely puberulous. Hypanthium campanulate, 5-7 mm, 4-sided, 8-ribbed, patently setose and sparsely puberulous. Calyx lobes ovate, apex apiculate. Petals purple or sometimes pink, obovate, 6-10 mm, oblique. Longer stamens ca. 1.1 cm; anthers ca. 6 mm. Shorter stamens 7.5-8 mm; anthers 3-4.5 mm. Connective not or mi- nutely inflated at base. Ovary apically 4-denticulate. Capsule ovoid, 4-6 mm in diam.; hypanthium limb outside glabrous or glandular puberulous. Fl. Aug-Oct, fr. Dec-Feb.

Open broad-leaved forests, mixed forests, grasslands, valleys, moist places, moist soil, rock crevices, trailsides; 500-3500 m. Guangxi, Guizhou, Sichuan, Yunnan [NE Myanmar, Vietnam].