25. Rubus pileatus Focke, Hooker’s Icon. Pl., ser. 3. 10: sub t. 1952. 1891.
菰帽悬钩子 gu mao xuan gou zi
Shrubs scandent, 1–3 m tall. Branchlets purple when young, brownish or grayish brown in age, glabrous, with sparse prickles, with white bloom. Leaves imparipinnate, usually 5–7-foliolate; petiole 3–10 cm, petiolule of terminal leaflet 1–2 cm, lateral leaflets subsessile, petiolules and rachis sparsely pubescent, with sparse, minute prickles; stipules lanceolate or linear-lanceolate, 8–10(–12) × 2–3 mm, pilose, glabrescent; blade of leaflets ovate, narrowly obovate, or elliptic, 2.5–6(–8) × 1.5–4(–6) cm, both surfaces pubescent along veins, base subrounded or broadly cuneate, margin coarsely doubly serrate, sometimes slightly lobed on terminal leaflet, apex acute to acuminate. Inflorescences terminal, corymbose, 2–4 cm, 3–5-flowered, rarely flowers solitary; bracts linear, 6–7 mm, pilose when young, glabrescent. Pedicel (1.5–)2–3.5 cm, slender, glabrous, with sparse, minute prickles or unarmed. Flowers 1–1.5(–2) cm in diam. Calyx purple, abaxially glabrous; sepals reflexed in fruit, ovate-lanceolate, 7–10 × 2–4 mm, long caudate, margin tomentose. Petals white, obovate, slightly shorter than or nearly as long as sepals, base sparsely pubescent and shortly clawed. Stamens many, shorter than sepals; filaments linear. Pistils numerous; ovary and basal part of style densely long gray tomentose; styles elongated in fruit. Aggregate fruit red, ovoid-globose, 0.8–1.2 cm in diam. densely gray tomentose; style persistent; pyrenes distinctly rugose. Fl. Jun–Jul, fr. Aug–Sep.
Sparse forests on roadsides, dense forests in montane valleys, river sides, ravines; 1400--2800 m. Gansu, Henan, Hubei, Qinghai, Shaanxi, Sichuan.