Rosa arkansana Porter in T. C. Porter and J. M. Coulter (Q4066)

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Rosa arkansana is a taxon with the rank species within the section Rosa sect. Rosa
Language Label Description Also known as
English
Rosa arkansana Porter in T. C. Porter and J. M. Coulter
Rosa arkansana is a taxon with the rank species within the section Rosa sect. Rosa

    Statements

    taxon/id/Rosa arkansana Porter
    0 references
    Rosa arkansana Porter
    Rosa arkansana
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
    accepted
    rosier des prairies (French)
    prairie rose (English)
    wild prairie rose (English)
    Arkansas rose (English)
    low wild rose (English)
    Prairie rose (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
    Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.
    1 reference
    Harms, V.L. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
    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.
    1 reference
    Brouillet, L. Proposition de nom français. (pers. comm.)
    Flowering May–Jul.
    rocky slopes
    dry hillsides
    prairies
    bluffs
    open woods
    grassy roadsides
    Shrubs, forming hedge clusters.
    Stems erect, slender or stout, 6–15 dm, openly branched;
    infrastipular prickles rarely present, internodal prickles densely mixed with aciculi to stem apices, erect, terete, 1–3 (–4) × 0.5–2 mm, base rarely extending to 3 mm, smallest often gland-tipped, aciculi rarely absent.
    Leaves 5–10 (–16) cm;
    stipules 18–24 × 4–7 mm, auricles flared, 2.5–4 (–7) mm, margins undulate, coarsely or shallowly glandular-serrate, surfaces glabrous or puberulent, eglandular;
    petiole and rachis sometimes with pricklets, sometimes with sparse aciculi, pubescent, sometimes glabrous, rarely stipitate-glandular;
    leaflets (5–) 7–9 (–11), terminal: petiolule 4–12 mm, blade obovate, sometimes elliptic, 15–40 × 8–20 mm, membranous, margins 1 (–2+) -serrate, teeth 8–16 per side, eglandular, rarely gland-tipped, apex acute, abaxial surfaces pale green, pubescent, sometimes glabrous, eglandular, adaxial green, ± glaucous, dull, sometimes pubescent (especially along midveins).
    Inflorescences corymbs, 1–6 (–16) -flowered.
    Pedicels erect, slender, 10–20 mm, glabrous, eglandular;
    bracts 1 or 2 (or 3), broadly lanceolate, 11–20 × 5–8 mm, margins entire, eglandular, surfaces glabrous, eglandular.
    Flowers 3.3–4 cm diam.;
    hypanthium globose, 5–6.5 × 4–5.5 mm, glabrous, eglandular, neck (0–) 0.5–1.5 × 2 mm;
    sepals spreading to erect, lanceolate, 11–20 (–30) × (1.5–) 3–4 mm, tip 3–7 × 0.5–1 mm, margins pinnatifid or entire, abaxial surfaces glabrous, stipitate-glandular or eglandular;
    petals single, rarely double, pink or rose, sometimes fading white, rarely white, 22–26 × 21–30 mm;
    carpels 26–43, styles exsert 1.5–2 mm beyond stylar orifice (1.5 mm diam.) of hypanthial disc (3 mm diam.).
    Hips dull orange-red, globose, subglobose, or oblong, 10–11 × 7.5–13 mm, fleshy, glabrous, eglandular, rarely stipitate-glandular, neck 0–2 mm;
    sepals persistent, erect at hip maturity.
    Achenes basiparietal, 12–15, dark buff, ellipsoid, 4.5–5 × 2.5 mm. 2n = 28.