别名：兰屿桤叶悬钩子

科名：蔷薇科 Rosaceae

属名：悬钩子属 Rubus

《中国植物志》第37卷100页
  61.桤叶悬钩子（台湾木本植物志）
  Rubus alnifoliolatus Levl. in Bull. Soc. Bot. Fr. 53: 549. 1906; 刘业经, 台湾木本植物志197. 1972. ——R. fraxinifolius sensu Matsum. ＆ Hayata in Journ. Coll. Sci. Univ. Tokyo 22: 21. 1906 (Enum. Fl. Formos.) , non Poir. 1804.
种中文名：桤叶悬钩子
种拉丁名：Rubus alnifoliolatus Lévl.
种别名  ：兰屿桤叶悬钩子
国内分布：台
海    拔：生低海拔至中海拔之路旁或灌丛内。
命名来源：[Bull．Soc．Bot．Pr 53:: 549. 1906]
中国植物志：37:100
英文植物志：9:205
亚组中文名：多心皮亚组
亚组拉丁名：Subsect．Rosae folii(Focke)
组中文名：空心莓组
组拉丁名：Sect.ldaeobatus Focke
属中文名：悬钩子属
属拉丁名：Rubus
亚科中文名：蔷薇亚科
亚科拉丁名：ROSOideae Pocke
科中文名：蔷薇科
科拉丁名：Rosaceae
纲中文名：双子叶植物纲
纲拉丁名：DICOTYLEDONEAE
门中文名：被子植物门
门拉丁名：ANGIOSPERMAE
参考文献：Rubus alnifoliolatus Lev1．In Bull．Soc．Bot．Pr．53:549．1906；刘业经，台湾木本 植物志197．1972．----R．Fraxinifolius sensu Matsum．& Hayata in Journ。Coil．Sci. Univ． Tokyo 22：21．1906(enum.F1.Formos.)，non Poir．1804.
亚组概述：Subsect．Rosae folii(Focke)．Yu et lu ，植物分类学报20(3)：303．1982．-Sect．Rosaefolii F0cke，BiN．Bot．7Z(2)：148。．1911 ct 83：38．1914． 本亚组有下列11种。

《Flora of China》 Vol. 9 (2003)
Rubus alnifoliolatus  H. Léveillé
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.