Rubus bifrons Vest (Q4132)

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Rubus bifrons is a taxon with the rank species within the genus Rubus
Language Label Description Also known as
English
Rubus bifrons Vest
Rubus bifrons is a taxon with the rank species within the genus Rubus

    Statements

    taxon/id/Rubus bifrons Vest
    0 references
    Rubus bifrons Vest
    Rubus bifrons
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
    accepted
    ronce discolore (French)
    Himalayan blackberry (English)
    twice-leaved blackberry (English)
    Himalayan giant blackberry (English)
    European or Himalayan blackberry (English)
    1 reference
    Douglas, G.W., G.B. Straley, D.V. Meidinger & J. Pojar. 1998. Illustrated Flora of British Columbia. B.C. Ministry of Environment, Lands & Parks and B.C. Ministry of Forests. Victoria. Crown Publications. 8 vols.
    1 reference
    Newmaster, S.G., A. Lehela, M.J. Oldham, P.W.C. Uhlig & S. McMurray. 1998. Ontario Plant List. Ontario Forest Research Institute, Sault Ste. Marie, Ontario. Forest Information Paper No. 123. 550 pp.
    Europe
    Flowering (Apr–)May–Aug(–Sep).
    woodland edges
    mixed woods
    open areas
    roadsides
    moist soil
    0–1200(–1800) m
    Shrubs, (3–) 10–50 dm, armed.
    Stems biennial, arching, sometimes creeping early or with age, sparsely to densely hairy, eglandular or sparsely sessile-glandular, not or weakly pruinose;
    prickles moderately dense, hooked, retrorse, or erect, stout, 4–10 mm, broad or narrow-based.
    Leaves deciduous to semievergreen, palmately compound;
    stipules filiform to linear, 7–15 mm;
    leaflets 3–5, terminal elliptic or ovate to suborbiculate, 6–15 × 4–9 cm, base rounded to shallowly cordate, unlobed, margins moderately to coarsely serrate, apex acute or acuminate to short-attenuate, abaxial surfaces white (gray-green in shade), with hooked prickles on largest veins, short-velutinous to tomentose, eglandular, rarely sparsely sessile-glandular along midveins.
    Inflorescences terminal, sometimes also axillary, 10–60 (–100) -flowered, thyrsiform, projected well beyond subtending leaves.
    Pedicels: prickles moderate to dense, hooked to retrorse or erect, densely hairy, eglandular or sparsely to moderately sessile-glandular.
    petals white to pink, obovate or elliptic to orbiculate, 10–15 mm;
    filaments filiform;
    ovaries apically hairy.
    Fruits black, globose to subcylindric, 1–2 cm;
    drupelets 15–40 (–50), strongly coherent, separating with torus attached.