Onagraceae Juss.
  • Gen. Pl. 317–318. 1789. (4 Aug 1789)


Cite taxon page as 'WFO (2021): Onagraceae Juss. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-7000000424. Accessed on: 25 Oct 2021'

General Information

Annual or perennial herbs, or shrubs, rarely trees to 30 m tall, often with epidermal oil cells, usually with internal phloem. Leaves simple, spirally arranged, opposite, or occasionally whorled, entire or toothed to pinnatifid; stipules present and usually caducous, or absent. Flowers perfect and hermaphroditic or occasionally unisexual, actinomorphic or zygomorphic, (2-)4(-7)-merous, axillary, in leafy spikes or racemes or solitary, or occasionally in panicles, all but Ludwigia with distinct floral tube, nectariferous within. Sepals green or colored, valvate. Petals as many as sepals or rarely absent, variously colored, imbricate or convolute and occasionally clawed. Stamens as many as sepals in one series or 2 × as many as sepals in 2 series [in Lopezia Cavanilles reduced to 2 or 1 plus 1 sterile staminode]; anthers versatile or basifixed, dithecal, sometimes cross-partitioned, opening by longitudinal slits; pollen grains almost always united by viscin threads, shed as monads, tetrads, or polyads. Ovary inferior, with as many carpels and locules as sepals, septa sometimes thin or absent at maturity; placentation axile or parietal, ovules 1 to many per locule, in 1 or several rows or clustered, anatropous, bitegmic; style 1; stigma with as many lobes as sepals or clavate to globose. Fruit a loculicidal capsule or indehiscent nut or berry. Seeds small, smooth or variously sculptured, sometimes with a coma [or wing], with straight oily embryo, endosperm lacking.

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

    Ovary inferior, mostly 4-celled, rarely 1–7-celled

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    Stamens as many or twice as many as sepals, very rarely fewer

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    Petals free, as many as sepals, contorted or imbricate, rarely absent

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    Sepals valvate, mostly 4, sometimes 5, rarely 2, 3, 6 or 7

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    Seeds without endosperm

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    Fruit a capsule, rarely a nut or a berry

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    Ovules axile, one to many per cell

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    Style simple

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    Stipules absent or small

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    Leaves alternate, opposite or rarely whorled, simple; petiole not inflated in middle

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    • 1
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    Flowers solitary and axillary, sometimes aggregated into racemes, or panicles, normally hermaphrodite, regular or rarely irregular

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    • 1
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    Herbs, sometimes shrubs, very rarely trees

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    • 1
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    Seeds without endosperm

  • Provided by: [A].Plants Of the World Online Portal - FTEA
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    Petals free, as many as sepals, contorted or imbricate, rarely absent

  • Provided by: [A].Plants Of the World Online Portal - FTEA
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    • 2
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    Stamens as many or twice as many as sepals, very rarely fewer

  • Provided by: [A].Plants Of the World Online Portal - FTEA
    • Source: [
    • 2
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    Flowers solitary and axillary, sometimes aggregated into racemes or panicles, normally hermaphrodite, regular or rarely irregular

  • Provided by: [A].Plants Of the World Online Portal - FTEA
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    • 2
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    Sepals valvate, mostly 4, sometimes 5, rarely 2, 3, 6 or 7

  • Provided by: [A].Plants Of the World Online Portal - FTEA
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    • 2
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    Ovules axile, one to many per cell

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    Fruit a capsule, rarely a nut or a berry

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    Ovary inferior, mostly 4-celled, rarely 1–7-celled

  • Provided by: [A].Plants Of the World Online Portal - FTEA
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    Style simple

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    Leaves alternate, opposite or rarely whorled, simple; petiole not inflated in middle

  • Provided by: [A].Plants Of the World Online Portal - FTEA
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    Herbs, sometimes shrubs, very rarely trees

  • Provided by: [A].Plants Of the World Online Portal - FTEA
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    Stipules absent or small

  • Provided by: [A].Plants Of the World Online Portal - FTEA
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    Stamens usually twice as many as the sepals and in 2 sets, 1 opposite the sepals and 1 opposite the petals, or as many as the sepals, sometimes reduced in number to 2; anthers versatile but sometimes attached near the base, dehiscing longitudinally

  • Provided by: [C].Plants Of the World Online Portal - FZ
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    Ovary inferior

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    Fruit a loculicidally or more rarely irregularly dehiscent capsule, sometimes indehiscent, or a berry, 1-many-seeded; placentation axile

  • Provided by: [C].Plants Of the World Online Portal - FZ
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    Style single; stigma variously lobed, discoid, elongate, or capitate

  • Provided by: [C].Plants Of the World Online Portal - FZ
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    Seeds small, anatropous, lacking endosperm

  • Provided by: [C].Plants Of the World Online Portal - FZ
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    Sepals free or very rarely connate

  • Provided by: [C].Plants Of the World Online Portal - FZ
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    Floral tube present or absent

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    Flowers actinomorphic or zygomorphic, hermaphrodite or rarely unisexual, 4–or 5–(rarely 2–, 3–, or 6–)merous, borne in the axils of usually reduced foliage leaves or in a more or less distinct inflorescence, usually a corymb or raceme

  • Provided by: [C].Plants Of the World Online Portal - FZ
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    Herbs, shrubs, or rarely trees with alternate or opposite, rarely whorled, simple, entire, lobed or pinnatifid leaves; stipules minute or absent

  • Provided by: [C].Plants Of the World Online Portal - FZ
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    Petals free (very rarely fused to the sepals), or sometimes absent

  • Provided by: [C].Plants Of the World Online Portal - FZ
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    Plantes'herbacées ou suffrutescentes, rarement ligneuses, généralement hygrophiles, terrestres ou aquatiques et à parties submergées spongieuses ou garnies de racines aérifères (pneumatophores).'Feuilles'simples, alternes ou opposées, rarement verticillées, entières ou dentées; stipules absentes ou peu développées et caduques.'Inflorescences'axillaires, 1-2-flores, rarement racèmes ou glomérules.'Fleurs'☿, régulières, parfois irrégulières ; bractéoles 2, au sommet du pédicelle; tube du calice adné à l'ovaire, non ou courtement prolongé au-dessus; sépales (2-3)4-5(6-7), valvaires; pétales 4-5, libres, tordus ou imbriqués dans le bouton; étamines en même nombre que les sépales et épisépales ou en nombre double, épisépales et épipétales, ces dernières souvent plus petites; anthères 2-loculaires, déhiscentes par une fente longitudinale; ovaire infère, (2)4(7)-loculaire, fréquemment surmonté d'un disque aplati ou conique, divisé en 4-5 nectaires glabres ou pubescents et entourant la base des étamines épipétales; style simple; stigmate clavé ou capité, entier ou profondément lobé, lobes en même nombre que les loges de l'ovaire; ovules nombreux, rarement solitaires par loge; placentation axile.'Fruits': capsules à déhiscence irrégulière, rarement baies ou akènes.'Graines nombreuses, libres ou entourées par un fragment de l'endocarpe (appareil de flottaison), exalbuminées, munies ou non d'une aigrette de longs poils soyeux; raphé souvent apparent.\n\t\t\tFamille comprenant 21 genres et environ 600 espèces largement distribuées surtout dans les régions tempérées de l'hémisphère Nord; pour la Flore, 2 genres, 15 espèces et 2 sous-espèces.

  • Provided by: [D].Flore d'Afrique Centrale
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     Information From

    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
    • A
    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
    • B The Trustees of the Royal Botanic Gardens, Kew
    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
    • C
    Flore d'Afrique Centrale
    https://www.floredafriquecentrale.be
    • D http://creativecommons.org/licenses/by/4.0/ Attribution 4.0 International (CC BY 4.0)
    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.
    • E Missouri Botanical Garden
    Onagraceae
    World Flora Online Data. 2017.
    • 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).