Alternanthera nodiflora R.Br.
  • Prodr. Fl. Nov. Holl.


Cite taxon page as 'WFO (2019): Alternanthera nodiflora R.Br. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000528712. Accessed on: 07 Dec 2019'

Morphology

Decumbent herb, often with woody rootstock

  • Provided by: [D].Plants Of the World Online Portal - FWTA
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    Flowers white.

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    Stem and branches green to purplish-brown, terete below and more or less tetragonous above, with a narrow line of whitish hairs down each side of the stem and branches (at least when young) and tufts of white hairs in the branch and leaf axils, otherwise glabrous.

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    Leaves linear to narrowly elliptic, 2–7 × 0.3–1.2 cm., acute to subacute at the apex, attenuate below, glabrous or occasionally thinly pilose when young; petiole indistinct or absent.

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    (Annual? or) perennial herb with a stout vertical rootstock, prostrate to ascending or erect, frequently rooting at the lower nodes, slightly to considerably branched from the base outwards, mostly 12–40 cm.

  • Provided by: [C].Plants Of the World Online Portal - FZ
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    • 10
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    Inflorescences sessile, axillary, solitary or in clusters of up to c. 5, globose, c. 7–10 mm. in diam., often meshing with one another and those of the opposite leaf axil to form a dense mass; bracts scarious, white, ovate-acuminate, mucronate with the excurrent pale midrib, glabrous, (2) 2.25–2.75 mm. long; bracteoles ovate-lanceolate, slightly more longly mucronate, (2)2.25–2.5 mm. long, glabrous.

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    Stamens 5 (2 filaments anantherous), at anthesis subequalling the filaments and style, the alternating pseudostaminodes resembling the filaments but a little shorter.

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    • 10
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    Tepals ovate-acuminate, tapering from below the middle (in smaller forms less long-pointed and tapering from about the middle), (2.75)3–4 mm. long, white to pink-tinged, glabrous, shortly mucronate with the excurrent nerve, the margins often obscurely lacerate-denticulate.

  • Provided by: [C].Plants Of the World Online Portal - FZ
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    • 10
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    Fruit glabrous, obcordate, 1.75–2 mm. long, 2–2.5 mm. wide, about half as long as the perianth or rather more with tumid yellow margins on each side of the seed much thicker than the narrow keel, darker over the seed.

  • Provided by: [C].Plants Of the World Online Portal - FZ
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    • 10
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    Ovary strongly compressed, roundish, the style very short.

  • Provided by: [C].Plants Of the World Online Portal - FZ
    • Source: [
    • 10
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    Seed discoid, c. 1.25–1.5 mm. in diam., brown, shining, faintly reticulate.

  • Provided by: [C].Plants Of the World Online Portal - FZ
    • Source: [
    • 10
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    Ovary strongly compressed, roundish.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
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    • 11
    • ]. 

    Style very short.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 11
    • ]. 

    Tepals ovate-acuminate, tapering from below the middle (in smaller forms less long-pointed and tapering from about the middle), (2.75–)3–4 mm., white to pink tinged, glabrous, shortly mucronate with the excurrent nerve, the margins often obscurely lacerate-denticulate.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 11
    • ]. 

    Stamens 5 (2 filaments anantherous), at anthesis subequalling the ovary and style, the alternating pseudostaminodes resembling the filaments but a little shorter.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 11
    • ]. 

    Stem and branches green to purplish brown, terete below and ± tetragonous above, with a narrow line of whitish hairs down each side of the stem and branches (at least when young) and tufts of white hairs in the branch and leaf-axils, otherwise glabrous.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 11
    • ]. 

    Leaves linear to narrowly elliptic, 2–7 × 0.3–1.2 cm., acute to subacute at the apex, attenuate below, glabrous or occasionally thinly pilose when young; petiole indistinct or absent.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 11
    • ]. 

    Inflorescences sessile, axillary, solitary or in clusters of up to ± 5, globose, ± 7–10 mm. in diameter, often meshing with one another and those of the opposite leaf-axil to form a dense mass; bracts scarious, white, ovate-acuminate, (2–)2.25 × 2.75 mm., mucronate with the excurrent pale midrib, glabrous; bracteoles ovate-lanceolate, slightly longer mucronate, (2–)2.25–2.5 mm., glabrous.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 11
    • ]. 

    (Annual? or) perennial herb with a stout vertical rootstock, prostrate to ascending or erect, frequently rooting at the lower nodes, slightly to considerably branched from the base outwards, mostly 12–40 cm.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 11
    • ]. 

    Seed discoid, ± 1.25–1.5 mm., brown, shining, faintly reticulate.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 11
    • ]. 

    Fruit obcordate, 2–2.5 mm. wide, 1.75–2 mm. long, about half as long as the perianth, strongly compressed, glabrous, with broad tumid yellow margins and darker over the seed.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 11
    • ]. 

     Information From

    Amaranthaceae
    World Flora Online Data. 2017.
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    Plants Of the World Online Portal - FTEA
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    • B
    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
    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
    • D The Trustees of the Royal Botanic Gardens, Kew