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

207. Rubus humulifolius C. A. Meyer, Beitr. Pflanzenk. Russ. Reiches. 57. 1848.

葎草叶悬钩子 lu cao ye xuan gou zi

Herbs perennial, dwarf, 10–30 cm tall. Rhizomes creeping, blackish brown, slender, much branched. Stems erect or ascending, soft hairy, rarely glabrous, prickly-bristly. Leaves simple; petiole 2–6 cm, pubescent or subglabrous, ± prickly-bristly; stipules often caducous, inconspicuous; blade cordate or reniform-cordate, 4–8 × 3.5–9 cm, abaxially greenish, pubescent, with few bristles, adaxially green, bristly pilose at first, glabrescent, base cordate, margin palmately 3–5-lobed; lobes ovate or suborbicular, apex obtuse or acute, irregularly doubly serrate. Inflorescences terminal, 1-flowered, rarely 2- or 3-flowered. Pedicel 1–2 cm, bristly. Calyx abaxially pubescent; sepals erect or spreading, narrowly lanceolate, 7–9 mm, apex caudate. Petals white, lanceolate, longer than sepals, apex acuminate. Stamens many, much shorter than petals; filaments of outer stamens dilated. Aggregate fruit red at maturity, globose, ca. 1 cm in diam., glabrous; pyrenes foveolate. Fl. Jun–Jul, fr. Aug. 2n = 14.

Coniferous forests, moist thickets. Heilongjiang, Jilin, Nei Mongol [Korea, Mongolia, Russia].


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