伞花杜若 san hua du ruo

Herbs perennial. Stems erect or ascending, 20--30 cm × 3--5 mm, sparsely puberulent. Leaves mostly aggregated at apex of stems; leaf sheath 0.5--2.5 cm, sparsely puberulent, mouth ciliate; petiole 1--2.5 cm; leaf blade elliptic to narrowly ovate, 8--15 × 3--6 cm, glabrous adaxially, glabrous or puberulent abaxially. Inflorescence much shorter than leaves; peduncle extremely short or absent, puberulent; cincinni numerous, not in whorls, ca. 3 cm, puberulent; involucral bracts small, less than 10 mm, puberulent; bracts membranous; pedicels straight or arcuate, ca. 4 mm in fruit. Sepals ovate-orbicular, shallowly boat-shaped, ca. 3 mm, persistent. Petals blue, white, or greenish yellow, ovate-orbicular, ca. 2 mm. Stamens 6; fertile stamens 3; staminodes 3, with shorter filaments. Fruit globose, 4--5 mm in diam. Fl. Jun--Jul.

Ravine forests; near sea level to 1400 m. W Guangxi (Napo Xian, Pingguo Xian), S Yunnan [Bhutan, NE India, Sikkim].