地蔷薇 di qiang wei

Sibbaldia erecta Linnaeus, Sp. Pl. 1: 284. 1753; Chamaerhodos micrantha J. Krause; C. songarica Juzepczuk.

Herbs biennial or annual, villous and glandular hairy. Roots woody. Flowering stem solitary, rarely few and tufted, erect or arcuate-ascending, 20–50 cm tall, slightly woody at base, often branched in upper 1/2. Radical leaves in a dense rosette, usually withering in fruit; stipules leaflike, 3- or more sect; petiole 1–2.5 cm; leaf blade 1–2.5 cm, 2 times 3-parted, base cuneate; lateral lobes 2-sect, median one often 3-sect into 3–5-fid segments; ultimate segments or lobes linear, 1–2 mm, margin entire, apex obtuse; cauline leaves resembling radical ones but subsessile and 3-parted. Inflorescence terminal, cymose, repeatedly dichasially branching into a many-flowered panicle 1.5–3 cm in diam.; bracts and bracteoles 2- or 3-fid with linear lobes. Flowers 2–3 mm in diam.; pedicel long, slender, 3–6 mm. Hypanthium turbinate or campanulate, ca. 1 mm. Sepals ovate-lanceolate, 1–2 mm, apex acuminate. Petals pale pink or white, obovate, 2–3 mm, glabrous, base tapering into a cuneate claw, apex rounded. Stamens shorter than petals. Carpels 10–15, free; ovary ovoid or cylindric; style lateral-basal. Achenes dark brown, ovoid or cylindric, 1–1.5 mm, glabrous, smooth, apex mucronate. Fl. and fr. Jun–Aug.

Mountain slopes, hills, dry sandy river banks; ca. 2500 m. Gansu, Hebei, Heilongjiang, Henan, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shanxi, Xinjiang [Korea, Mongolia, Russia].

This species is used medicinally.