Rosa L.
  • Sp. Pl. : 491 (1753)
  • Rose, brier, rosier [Latin name for rose]

Cite taxon page as 'WFO (2022): Rosa L. Published on the Internet; Accessed on: 28 Nov 2022'

General Information

Shrubs, erect, diffuse, or climbing, mostly prickly, bristly, or rarely unarmed, pubescent, glandular-pubescent, or glabrous. Leaves alternate, odd pinnate, rarely simple; stipules adnate or inserted at petiole, rarely absent. Flowers solitary or in a corymb, rarely in a compound corymb or a panicle; bracts solitary, several, or absent. Hypanthium globose, urceolate, or cupular, constricted at neck. Sepals 5, rarely 4, quincuncial: 2 outer, 2 inner, and 1 middle, margin entire or variously pinnately lobed. Petals 5, rarely 4, imbricate, white, yellow, pink, or red; disc inserted at mouth of hypanthium. Stamens numerous, in several whorls, inserted at disc. Carpels free, numerous, rarely few, inserted at margin or base of hypanthium, not or rarely stalked; ovule pendulous; styles terminal or lateral, exserted or not, free or connate at upper part. Fruit a hip, formed from fleshy hypanthium. Achenes numerous, rarely few, on adaxial surface of fleshy hypanthium, woody. Seed pendulous. x = 7.

  • Provided by: [C].Flora of China @
    • Source: [
    • 2
    • ]. 

    18. Rosa L., nom. cons.

    Por F.R.Barrie.

    Arbustoserectos, de extensión desordenada, o postrados, o bejucos leñosos; inermes omás generalmente armados con aguijones rectos o recurvados. Hojas persistenteso deciduas, ternadas o imparipinnadas, folíolos 3-9; estípulas presentes,parcialmente adnatas a los pecíolos, el extremo distal libre. Inflorescenciasen corimbos o las flores solitarias; bractéolas ausentes; sépalos 5,frecuentemente pinnatilobados; pétalos 5 (10 o más en numerosos cultivares),blancos o rosados (o rojos o amarillos); estambres numerosos; hipanto globoso,campanulado o urceolado; carpelos súperos, numerosos, libres; estilos atados enel ápice; óvulo 1. Frutos en cinarrodones, consistiendo de un hipantopersistente carnoso, encerrando los numerosos aquenios óseos. Aprox. 200 spp.Eurasia, Canadá, Estados Unidos, México.

    Ningunaespecie de Rosa es nativa de Mesoamérica, pero miembrosdel género con frecuencia se plantan como ornamentales. Estos son cultivares deorigen híbrido, con flores grandes, de colores brillantes, con numerosospétalos, sobrepasando en mucho el número 5 del tipo silvestre. Un cultivar de Rosa banksiae R. Br., con pétalos blancos nativo de China, hasido colectado en Chiapas (Santíz 746, MO).

    Bibliografía; Gu, C. y Robertson,K.R. Fl. China 9: 339-381 (2003).

  • Provided by: [D].Flora Mesoamericana
    • Source: [
    • 3
    • 1
    • ]. 

    ROSA L.

    Arbustos espinosos; hermafroditas. Hojas alternas, pinnaticompuestas. Flores solitarias o en corimbos, vistosas. Fruto de aquenios híspidos dentro de un receptáculo carnoso (cinorrodon).

    Género con ca 200 especies, todas en el hemisferio norte. El material de Nicaragua fue examinado por E.F. Allen, British Rose Society, y 2 especies en sus formas cultivadas son conocidas en el país. "Rosa".

  • Provided by: [F].Flora de Nicaragua
    • Source: [
    • 4
    • ]. 

    Shrubs or subshrubs, 1–50(–100) dm; rhizomatous or stoloniferous. Stems 1–20, erect to spreading, arching, climbing, or procumbent, ?simple or branched?; bark brown, red, and gray, ?often exfoliating?; long and short shoots present; glabrous, rarely densely puberulent to tomentose. Leaves deciduous, rarely persistent or semipersistent, cauline; stipules present [absent], narrow, rarely broad, margins entire or serrate, sometimes pectinate, crenate, or lacinulose, rarely serrulate, undulate, or sinuate; petiole present; blade cordate, elliptic, lanceolate, ovate-lanceolate, oblong, obovate, oval, ovoid, orbiculate, or suborbiculate, 1–3 cm, membranous or leathery, ?rugose or smooth, dull or lustrous?; leaflets (3–)5–11(–13), ?lateral subsessile, terminal petiolulate?, elliptic to obovate, ± oblong, obovate-elliptic, lanceolate-elliptic, or obovate-oblong, margins flat, serrate, crenate, or incised, surfaces glabrous, puberulent, pubescent, or tomentose, ?eglandular or glandular?. Inflorescences terminal ?usually on lateral branches, sometimes on primary stems and shoots?, (1–)4–30(–50)-flowered, usually panicles, sometimes corymbs, glabrous; bracts absent or present, ?(0 or)1–3(–8)?; bracteoles absent. Pedicels present. Flowers rarely unisexual (dioecious in R. setigera or monoecious), 10–90(–100) mm diam.; hypanthium 2–5(–10) mm, glabrous, puberulent, tomentose, or setose, ?eglandular or glandular?; sepals 5, erect or spreading to reflexed, ovate-lanceolate or lanceolate, rarely ovate-acuminate or deltate, ?margins entire or pinnatifid, apex acute, often prolonged tip?; petals [4]5 (sometimes numerous if “double”), pink to red, sometimes white, obovate, ?apex usually emarginate?; stamens 35–220, shorter than petals; ?carpels usually borne on inner hypanthial walls, rarely on basal tori, styles glabrous or pilose, sometimes lanate or villous, exsert?. Fruits (hips), 1–50, globose, ovoid-obovoid, ellipsoid, oblong, pyriform, or urceolate, 7–11(–20) diam., glabrous, ?glandular or eglandular?; hypanthium persistent, ?red or orange-red, purplish red, or purplish black, fleshy or leathery?; sepals persistent or deciduous, erect to spreading-erect. x = 7.

  • Provided by: [B].Flora of North America @
    • Source: [
    • 5
    • ]. 

    Hypanthium globose to urceolate, with a constricted orifice; sep usually long-attenuate or prolonged into a foliaceous tip, often persistent in fr; pet large, spreading at anthesis, pink to red, white, or yellow; stamens very numerous, inserted near the orifice of the hypanthium on relatively short filaments; ovaries mostly numerous, inserted on the bottom or also on the sides of the hypanthium; styles usually barely exserted, distinct or ± united; fr a bony achene; mature hypanthium, called a hip, commonly colored and pulpy or fleshy; shrubs or woody vines, usually prickly; lvs pinnately compound with 3–11 serrate lfls, the stipules commonly large and adnate to the petiole; x=7. Genus beset with hybridization and polyploidy. 100+, mainly N. Temp. The application of the names R. spinosissima and R. cinnamomea is now so confused that both have been abandoned in Flora Europaea. We do likewise.

  • Provided by: [E].Manual of Vascular Plants of Northeastern US and Canada
    • Source: [
    • 6
    • ]. 


    SELECTED REFERENCES Bruneau, A., J. R. Starr, and S. Joly. 2007. Phylogenetic relationships in the genus Rosa: New evidence from chloroplast DNA sequences and an appraisal of current knowledge. Syst. Bot. 32: 366–378. Erlanson, E. W. 1934. Experimental data for a revision of the North American wild roses. Bot. Gaz. 96: 197–259. Joly, S. et al. 2006. Polyploid and hybrid evolution in roses east of the Rocky Mountains. Amer. J. Bot. 93: 412–425. Rydberg, P. A. 1918. Rosa. In: N. L. Britton et al., eds. 1905+. North American Flora.... 47+ vols. New York. Vol. 22, pp. 482–533. Wissemann, V. and C. M. Ritz. 2005. The genus Rosa (Rosoideae, Rosaceae) revisited: Molecular analysis of nrITS-1 and atpB-rbcL intergenic spacer (IGS) versus conventional taxonomy. Bot. J. Linn. Soc. 147: 275–290.

  • Provided by: [B].Flora of North America @
    • Source: [
    • 5
    • ]. 

    Included Species

    Other Local Names

    Rose, brier, rosier [Latin name for rose]

     Information From

    MBG Floras Images
    Flora images. Missouri Botanical Garden. Accessed on Jun. 2018.
    • A Missouri Botanical Garden
    Flora of North America @
    'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Flora of North America Association
    Flora of China @
    'Flora of China @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • C Missouri Botanical Garden
    Flora Mesoamericana
    Gerrit Davidse, Mario Sousa Sánchez, A. O. Chater, Universidad Nacional Autónoma de México. Instituto de Biología, Missouri Botanical Garden, Natural History Museum (London, England) UNAM, 1994
    • D Missouri Botanical Garden
    Manual of Vascular Plants of Northeastern US and Canada
    Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
    • E Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Flora de Nicaragua
    W. D. Stevens, C. Ulloa Ulloa, A. Pool & O. M. Montiel. 2001–. Flora de Nicaragua, Tropicos Project. Loaded from Tropicos Project: October 2017
    • F Missouri Botanical Garden
    World Flora Online Data. 2021.
    • G CC0 1.0 Universal (CC0 1.0).
    World Flora Online Consortium
    World Flora Online Data. 2017.
    • H CC0 1.0 Universal (CC0 1.0).