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FOC | Family List | FOC Vol. 9 | Rosaceae | Rubus

17. Rubus wawushanensis T. T. Yu & L. T. Lu, Acta Phytotax. Sin. 20: 298. 1982.

瓦屋山悬钩子 wa wu shan xuan gou zi

Shrubs upright, spreading. Branchlets purplish brown, pilose, with dense needle-like prickles, with intermixed sparse, long stalked glands. Leaves imparipinnate, 5–7-foliolate; petiole 3–6 cm, petiolule of terminal leaflet 1–2 cm, lateral leaflets sessile or nearly so, petiolules and rachis minutely pubescent, with needle-like prickles; stipules linear or narrowly lanceolate, soft hairy; blade of leaflets ovate, rhombic-ovate, or oblong, 2.5–7 × 2–5(–6) cm, abaxially densely gray tomentose, with sparse, small needle-like prickles along veins, adaxially minutely appressed pubescent, base often truncate, base of lateral leaflets rounded, margin unevenly coarsely incised or sharply doubly serrate, terminal leaflet sometimes 2- or 3-lobed, apex acute, often acuminate on terminal leaflet. Inflorescences usually terminal on short lateral branchlets, 1-flowered or flowers in clusters of 2 or 3; bracts linear, puberulent. Pedicel 1.8–2.5 cm, minutely pubescent, with needle-like prickles and with glandular hairs. Calyx abaxially gray tomentose, with needle-like prickles, ± with intermixed longer stalked glands; sepals erect, narrowly ovate-lanceolate, 1.2–1.7 cm × 5–7 mm, apex long caudate. Flowers to 2.5 cm in diam. Petals white, elliptic or spatulate, shorter than sepals, both surfaces puberulent, apex clawed. Stamens many; filaments linear, or basally slightly broader. Pistils shorter than stamens; ovary and base of style densely long gray tomentose. Aggregate fruit subglobose, ca. 1 cm or more in diam., long gray tomentose; styles persistent; pyrenes rugulose. Fl. May–Jun, fr. Jul–Aug.

Forest understories. Sichuan (Hongya Xian, Wawu Shan).


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