察龙无心菜 cha long wu xin cai

Herbs perennial. Stems diffuse, 3--6 cm, basally glabrous, with withered leaves, distally slightly villous, with congested leaves; internodes elongate. Leaf blade lanceolate or saccate-orbicular, 5--14 mm, base narrowed, margin hairy, apex acute. Flower solitary. Pedicel ca. 5 mm. Sepals ovate, ca. 4 mm, villous abaxially, margin membranous. Petals 5, white, obovate, 6--7 mm, base clawed, apex emarginate or obtuse. Styles 2, equaling sepals.

* Alpine streamsides; ca. 4700 m. W Sichuan.