Rubus stimulans Focke

Shrubs 1–2 m tall. Branchlets brown or reddish brown to purplish brown, soft hairy at first, gradually glabrescent, glabrous when old, with needle-like prickles, with sparse, stalked glands. Leaves imparipinnate, 5–7-foliolate; petiole 4–8 cm, petiolule of terminal leaflet 1.5–3 cm, lateral leaflets subsessile, petiolule and rachis pubescent, with needle-like prickles, or with intermixed sparse, stalked glands; stipules lanceolate or linear lanceolate, 7–11 mm, pubescent or with sparse, stalked glands, blade of leaflets ovate to ovate-lanceolate, 4–8 × 2–6 cm, abaxially densely gray tomentose, adaxially sparsely pubescent, base rounded, often subtruncate on terminal leaflet, margin irregularly pinnate-lobed, sharply incised doubly serrate, apex acute to acuminate. Inflorescences terminal on short branchlets, 2- or 3-flowered, or flowers solitary in leaf axils; bracts linear, 5–8 mm, pubescent. Pedicel 1–2.5 cm, with abaxial surface of calyx pubescent, with needle-like prickles or with sparse, stipitate glandular hairs. Flowers 1.2–2 cm in diam. Calyx tube pelviform; sepals erect, spreading, ovate-lanceolate, 1.5–2 cm × 4–6 mm, margin gray tomentose, apex caudate. Petals pink or white with red spots, obovate or suborbicular, 5–6 mm in diam., much shorter than sepals, base pubescent and shortly clawed. Stamens numerous in 1 whorl, slightly shorter than or nearly as long as petals; filaments purplish red, linear. Pistils many, longer than stamens; style and ovary glabrous, rarely sparsely pilose. Aggregate fruit red, subglobose, 1–1.5 cm in diam., glabrous; pyrenes shallowly rugose or pitted. Fl. Jun–Jul, fr. Aug–Sep.

SE Xizang, NW Yunnan.

Coniferous forests, thickets in mountainous areas; 2000--4100 m.

Rubus chinensis Franchet (1890), not Thunberg (1813), nor Seringe (1825); R. chinensis Franchet var. concolor Cardot; R. stimulans var. concolor (Cardot) C. Y. Wu.

Rubus stimulans là loài thực vật có hoa trong họ Hoa hồng. Loài này được Focke miêu tả khoa học đầu tiên năm 1911.

华西悬钩子（学名：Rubus stimulans）是蔷薇科悬钩子属的植物，是中国的特有植物。分布在中国大陆的云南、西藏等地，生长于海拔2,000米至4,100米的地区，一般生长在山地针叶林下及灌丛中，目前尚未由人工引种栽培。