Rosa tomentosa Smith (Q4110)

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Rosa tomentosa is a taxon with the rank species within the section Rosa sect. Caninae
Language Label Description Also known as
English
Rosa tomentosa Smith
Rosa tomentosa is a taxon with the rank species within the section Rosa sect. Caninae

    Statements

    taxon/id/Rosa tomentosa Smith
    0 references
    Rosa tomentosa Smith
    Rosa tomentosa
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
    accepted
    rosier tomenteux (French)
    woolly rose (English)
    white-woolly rose (English)
    downy rose (English)
    Harsh downy-rose (English)
    1 reference
    Catling, P.M., D.S. Erskine & R.B. MacLaren. 1985. The Plants of Prince Edward Island with new records, nomenclatural changes, and corrections and deletions. Agriculture Canada, Research Branch, Ottawa. Publication 1798. 272 pp.
    Europe
    Flowering Jun–Jul.
    roadside thickets
    hedgerows
    woodland edges
    rhizomatous or not.
    Stems arching, 7–20 (–30) dm, internodes long;
    distal branches spreading, bark pale green;
    infrastipular prickles single or paired, curved or ± erect, 3–6 × 2.5–3.5 mm, lengths ± uniform, internodal prickles sometimes mostly smaller, with aciculi, rarely absent.
    Leaves deciduous, 5–7.5 (–11) cm;
    stipules 10–16 (–20) × 3–4 mm, auricles 2–5 mm, margins densely glandular-ciliate, surfaces tomentose, often glandular abaxially;
    petiole and rachis with sparse pricklets, tomentulose, glandular;
    leaflets 5–7, terminal: petiolule 6–8 mm, blade orbiculate to ovatelanceolate or elliptic, 15–30 (–60) × 8–22 (–50) mm, base obtuse, margins 1-serrate or multi-serrate, teeth 13–20 per side, apex acute, abaxial surfaces tomentose, usually resinous-glandular, glands resin-scented, adaxial pale or grayish green, dull, glabrous or pubescent.
    Inflorescences panicles, 1–6-flowered.
    Pedicels erect, (11–) 20–35 mm, densely stipitate-glandular;
    bracts 2, ovatelanceolate, 13–14 × 5–7 mm, margins ciliate-glandular, surfaces tomentose, glandular or eglandular.
    Flowers 3.5–5 cm diam.;
    hypanthium ovoid, 6–7 × 4 mm, stipitate-glandular, setose, rarely eglandular, neck 1.5 × 2 mm;
    sepals spreading or erect, ovatelanceolate, 15–25 × 2–3 mm, margins pinnatifid, tip 4–5 × 1–1.5 mm, abaxially densely stipitate-glandular;
    petals pink, rarely white, 8–15 × 10–15 mm;
    carpels 26–34, styles glabrous or villous, exsert 2–2.5 mm beyond stylar orifice (1 mm diam.) of hypanthial disc (2–4 mm diam.).
    Hips dark red, oblong, ovoid, or globose, 10–15 × 10–12 mm, glabrous, stipitate-glandular at least proximally, neck 1 × 5–6 mm;
    sepals deciduous after anthesis, spreading or reflexed.
    Achenes ca. 23, tan, 4–4.5 × 2 mm. 2n = 35.