柔软无心菜 rou ruan wu xin cai

Arenaria aureocaulis C. Y. Wu ex L. H. Zhou; A. benthamii Edgeworth (1874), not Fenzl ex Torrey & A. Gray (1840); A. glandulosa (Bentham ex G. Don) F. N. Williams (1895), not Jacquin (1798); A. sikkimensis Majumdar; A. stellarioides C. Y. Wu ex L. H. Zhou (1987), not Persoon (1805), nor Willdenow ex D. F. K. Schlechtendal (1816); A. yunnanensis Franchet f. angustifolia F. N. Williams; Lepyrodiclis debilis H. Ohba; L. glandulosa H. Ohba; Odontostemma glandulosum Bentham ex G. Don.

Herbs annual or biennial, violet multicellular glandular hairy. Roots spinose or conic. Stems sparsely clustered or solitary, yellow, 30--60 cm. Proximal cauline leaves shortly petiolate; distal cauline leaves sessile; leaf blade elliptic or ovate-elliptic, 1--4 cm × (0.5--)1--2 mm, both surfaces sparsely glandular hairy, midvein raised abaxially, base cuneate, apex acute. Cymes dichotomously branched, few flowered; bracts ovate-lanceolate, 3--5 mm, glandular hairy. Pedicel 1--2(--3) cm, densely glandular hairy. Sepals 5, lanceolate, 5--6 mm, densely glandular pubescent abaxially, margin narrowly membranous, apex acute. Petals 5, white, obovate or obovate-saccate, 7--8 mm, apex fimbriate. Stamens 10, slightly longer than sepals; anthers yellowish. Ovary ovoid. Styles 2, linear. Capsule ovoid, slightly shorter than or equaling persistent sepals, apex 4-valved. Seeds 2 or 3, flat, ca. 2 mm in diam., weakly striate. Fl. Jul--Aug, fr. Aug--Sep.

Scrub, alpine meadows, mountain grasslands; (2500--)3200--4500 m. SE Xizang, NW Yunnan [Bhutan, India, Nepal, Sikkim].