Rosaceae Juss.
  • Gen. Pl. 334. 1789. (4 Aug 1789)
  • Rose Family


Cite taxon page as 'WFO (2020): Rosaceae Juss. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-7000000532. Accessed on: 06 Jun 2020'

General Information

Herbs (annual or perennial), shrubs, or trees. Stems simple or branched. Leaves persistent or deciduous, basal and/or cauline, usually alternate, rarely opposite, simple or compound (palmate or imparipinnate); stipules usually present, sometimes absent; petiole present or absent; blade thin to coriaceous, margins ± lobed or unlobed, usually toothed. Inflorescences terminal, sometimes axillary, panicles with terminal flower (that is, determinate) or reductions of this: 1-flowered, glomerules, fascicles, spikes, racemes, corymbs, umbels, or cymes. Flowers usually bisexual, rarely unisexual, perianth and androecium perigynous or epigynous; epicalyx bractlet sometimes present; hypanthium flat to hemispheric, or cylindric to funnelform or urceolate; sepals (0–)4 or 5(–10), distinct, free; petals (0–)4 or 5(–12, rarely more in double ornamentals), distinct, free; nectar disc sometimes absent; stamens 0–130(–220), distinct, free, anthers usually longitudinally dehiscent; torus well developed, inconspicuous, or absent; pistils 1–250(–450), distinct or ± connate, free or ± adnate to hypanthium, ovary superior or inferior (then 2–5-carpellate and -locular and ± connate with axile placentation), styles terminal, subterminal, lateral, or ± basal, sometimes basally connate, stigmas usually capitate; ovules 1 or 2(–5+), ?basal, marginal, or apical, collateral, superposed, biseriate, or clustered, integuments 2, crassinucellate, with or without obturator?. Fruits achenes aggregated or not, follicles aggregated or not, drupes aggregated or not, aggregated nutlets, pomes, aggregated drupelets, or capsules; ?sometimes involving accessory organs, for example, hypanthium, torus?. Seeds 1 or 2(–12+), not arillate.

  • Provided by: [E].Flora of North America @ efloras.org
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    Trees, shrubs, or herbs, deciduous or evergreen. Stems erect, scandent, arching, prostrate, or creeping, armed or unarmed. Buds usually with several exposed scales, sometimes with only 2. Leaves alternate, rarely opposite, simple or compound; stipules paired, free or adnate to petiole, rarely absent, persistent or deciduous; petiole usually 2-glandular apically; leaf blade often serrate at margin, rarely entire. Inflorescences various, from single flowers to umbellate, corymbose, racemose or cymose-paniculate. Flowers usually actinomorphic, bisexual, rarely unisexual and then plants dioecious. Hypanthium (formed from basal parts of sepals, petals, and stamens) free from or adnate to ovary, short or elongate. Sepals usually 5, rarely fewer or more, imbricate; epicalyx segments sometimes also present. Petals as many as sepals, inserted below margin of disk, free, imbricate, sometimes absent. Disk lining hypanthium, usually entire, rarely lobed. Stamens usually numerous, rarely few, always in a complete ring at margin of or above disk; filaments usually free, very rarely connate; anthers small, didymous, rarely elongate, 2-locular. Carpels 1 to many, free, or ± connate and then adnate to inner surface of cupular receptacle; ovary inferior, semi-inferior, or superior; ovules usually 2 in each carpel, rarely 1 or several, anatropous, superposed. Styles as many as carpels, terminal, lateral, or basal, free or sometimes connate. Fruit a follicle, pome, achene, or drupe, rarely a capsule, naked or enclosed in persistent hypanthium and sometimes also by sepals. Seeds erect or pendulous, sometimes winged, usually exalbuminous, very rarely with thin endosperm; cotyledons mostly fleshy and convex abaxially, rarely folded or convolute.

  • Provided by: [D].Flora Of CHina @ efloras.org
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    Morphology

    Trees, shrubs or herbs

  • Provided by: [C].Plants Of the World Online Portal - FWTA
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    Leaves various, simple or compound, alternate or rarely opposite; stipules mostly present and paired, sometimes adnate to the petiole

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    Stamens usually numerous; filaments free or connate; anthers small, 2-celled

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    Petals present, rarely absent, imbricate

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    Calyx free or adnate to the ovary; lobes imbricate

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    Flowers actinomorphic or subzygomorphic, usually hermaphrodite

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    Seeds without endosperm

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    Fruit superior or inferior, drupaceous, pomaceous, follicular or achenial

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    Ovules 2 or more in each carpel, superposed

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    Carpels 1 or more, free or connate, superior or inferior; styles free or rarely connate

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    Fruits various, inferior to superior, naked or enclosed by the persistent calyx or calyx-tube, drupaceous, pomaceous, follicular, or composed of an indefinite number of achenes or drupelets, rarely capsular

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    Trees, shrubs, scramblers, brambles or herbs, rarely annuals in the FZ area

  • Provided by: [A].Plants Of the World Online Portal - FZ
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    Carpels l–¥, free or connate and then usually ± adnate to the calyx-tube; styles terminal or basal; ovules often 2, rarely 1 or several

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    Inflorescence corymbose, racemose or paniculate, or flowers solitary

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    Seeds erect or pendulous; endosperm absent or very rarely scantily present; cotyledons usually fleshy

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    Leaves alternate, rarely opposite or borne in groups of 2 or 3 at each node, simple or compound; stipules usually present and paired

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    Flowers actinomorphic or almost so, mostly bisexual, rarely dioecious or polygamo-dioecious

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    Calyx-tube short or elongated, free or adnate to the gynoecium; sometimes with an “epicalyx” of bracteoles; calyx-lobes usually 5, imbricate; disk usually present, lining the mouth of the calyx-tube, usually entire-margined

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    Petals inserted below the margin of the disk, as many as the calyx-lobes, imbricate or convolute, usually free, often deciduous, or absent

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    Stamens usually numerous, usually in a complete ring at the margin of or above the disk; filaments usually free and filiform; anthers mostly small, dehiscing longitudinally

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    Receptacle flat, or convex and sometimes very accrescent, or concave, the mouth symmetrically or asymmetrically crateriform

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    Calyx campanulate or urceolate, free or adnate in part to the receptacle, sometimes gibbous and asymmetrical, the lobes 4–5, with or without an additional row of 4–5 alternating outer lobes (epicalyx)

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    Flowers regular or irregular, hermaphrodite, monoecious, dioecious, or polygamous, perigynous or epigynous

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    Leaves simple or compound, alternate, stipulate

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    Styles terminal or basal, exserted or included

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    Carpels 1 to many, free or fused to each other and to the receptacle, or fused but free of the receptacle

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    Stamens 1 to many, sometimes biseriate, exserted or included, free or basally connate, regularly disposed or inserted on one side of the receptacle only; staminodes (if present) usually inserted on one side of the receptacle and there replacing the fertile stamens

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    Petals 5 or 0

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    Ovules 1 or 2

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    Herbs, shrubs, scramblers or trees

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    Literature

    SELECTED REFERENCES Kalkman, C. 1988. The phylogeny of the Rosaceae. Bot. J. Linn. Soc. 98: 37–59. Kalkman, C. 2004. Rosaceae. In: K. Kubitzki et al., eds. 1990+. The Families and Genera of Vascular Plants. 10+ vols. Berlin etc. Vol. 6, pp. 343–386. Morgan, D. R., D. E. Soltis, and K. R. Robertson. 1994. Systematic and evolutionary implications of rbcL sequence variation in Rosaceae. Amer. J. Bot. 81: 890–903. Potter, D. et al. 2002. Phylogenetic relationships in Rosaceae inferred from chloroplast matK and trnL-trnF nucleotide sequence data. Pl. Syst. Evol. 231: 77–89. Potter, D. et al. 2007. Phylogeny and classification of Rosaceae. Pl. Syst. Evol. 266: 5–43. Robertson, K. R. 1974. The genera of Rosaceae in the southeastern United States. J. Arnold Arbor. 55: 303–332, 344–401, 611–662. Rydberg, P. A. 1908–1918. Rosaceae. In: N. L. Britton et al., eds. 1905+. North American Flora…. 47+ vols. New York. Vol. 22, pp. 239–533.

  • Provided by: [E].Flora of North America @ efloras.org
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    Included Genus

    Other Local Names

    NameLanguageCountry
    Rose Family

     Information From

    Plants Of the World Online Portal - FZ
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • A
    Plants Of the World Online Portal - FTEA
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • B
    Plants Of the World Online Portal - FWTA
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • C The Trustees of the Royal Botanic Gardens, Kew
    Flora Of CHina @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=2
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • D Missouri Botanical Garden
    Flora of North America @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=1
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • E Flora of North America Association
    Rosaceae
    CC0 1.0 Universal (CC0 1.0). https://creativecommons.org/publicdomain/zero/1.0
    • F CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • G CC0 1.0 Universal (CC0 1.0).