砂生地蔷薇 sha sheng di qiang wei

Herbs perennial. Flowering stems many, tufted, spreading or ascending, 6–10(–18) cm tall, slightly hard, together with leaves and petioles glandular hairy and pilose. Radical leaves in a dense rosette, not withering in fruit; stipules entire at margin; petiole 1.5–2.5 cm; leaf blade 1–3 cm, 3 times 3-parted; segments entire or 2- or 3-sect into entire or 2- or 3-fid segments; ultimate lobes spatulate, 1–2 mm, apex rounded; cauline leaves few or absent, resembling radical ones but 3-parted with segments entire or 2- or 3-fid. Inflorescence terminal, compressed at anthesis, later becoming lax, paniculate-corymbiform, many flowered; bracts and bracteoles linear, 1–2 mm, margin entire. Flowers 3–5 mm in diam. Hypanthium campanulate or pyriform, 2–4.5 mm, pilose. Sepals erect, triangular-ovate, equaling or slightly longer than hypanthium, apex acute. Petals white or pink, lanceolate-spatulate or cuneate, 2–3 mm, shorter than or equaling sepals, apex rounded. Filaments glabrous, shorter than petals. Carpels (5 or)6–8(–10), free. Achenes brown, shining, ovoid, ca. 1 mm. Fl. Jun–Jul, fr. Aug–Sep.

Sands and gravels on river banks. Nei Mongol, Xinjiang, Xizang [Mongolia, Russia].