11. Rubus alnifoliolatus H. Léveillé, Bull. Soc. Bot. France. 53: 549. 1906.
桤叶悬钩子 qi ye xuan gou zi
Shrubs erect, small. Branchlets reddish brown to purplish brown, glabrous, often with white bloom; prickles curved or straight, few, to 5 mm. Leaves imparipinnate, 7–9-foliolate, rarely 5-foliolate; petiole reddish, 4–8 cm, petiolule of terminal leaflet to 2.5 cm, lateral leaflets subsessile, petiolule and rachis glabrous or subglabrous, with sparse prickles; stipules linear-lanceolate, 4–10 mm, margin slightly hairy; blade of leaflets ovate-lanceolate to elliptic-lanceolate, 5–10 × 1.5–3.5 cm, both surfaces glabrous or abaxially slightly pubescent along veins, base ± obliquely broadly cuneate to rounded, margin irregularly serrate or doubly serrate, apex acute to acuminate. Inflorescences terminal, usually cymose panicles, to 10 × 14 cm, many flowered; rachis and pedicels glabrous or nearly so; bracts linear, 5–9 mm, glabrous. Pedicel 1–1.4 cm, slender, unarmed. Calyx abaxially glabrous; tube pelviform; sepals ovate-lanceolate, 7–11 × 3–5 mm, abaxially with few glands, apex acuminate to caudate. Petals white, ovate-oblong, 0.7–1.4 cm × 4–6 mm, abaxially with few hairs, apex obtuse. Stamens many, glabrous, shorter than petals. Pistils numerous; style and ovary glabrous. Aggregate fruit red at maturity, oblong or ellipsoid, 0.8–1.5 cm. Fl. spring-summer, fr. summer.
Thickets, roadsides; Low to medium elevations. Taiwan.