Rubus alnifoliolatus H. Lév.

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.

Rubus alnifoliolatus là loài thực vật có hoa trong họ Hoa hồng. Loài này được H. Lév. miêu tả khoa học đầu tiên năm 1906.

桤叶悬钩子（学名：Rubus alnifoliolatus）为蔷薇科悬钩子属的植物，为台灣特有植物。分布在台湾低海拔之路旁、中及灌丛内，目前尚未由人工引种栽培。