Guilleminea densa (Willd. ex Schult.) Moq.
  • Prodr.


Cite taxon page as 'WFO (2020): Guilleminea densa (Willd. ex Schult.) Moq. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000711753. Accessed on: 01 Apr 2020'

Morphology

Tepals united for about half their length, densely sinuose-lanuginose, the lobes very delicate, hyaline except for a pale, firmer midrib, whole perianth c. 2–2.5 mm. long at maturity.

  • Provided by: [D].Plants Of the World Online Portal - FZ
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    Staminal tube completely adnate to the perianth tube, the filaments indicated only by short, triangular teeth; anthers very small, c. 0.25 mm., ovoid.

  • Provided by: [D].Plants Of the World Online Portal - FZ
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    Inflorescences dense, ovoid, of up to c. 10 flowers, whitish, to c. 6 mm. long, the axis long-pilose; lower flowers frequently minutely pedicellate below the bract, the upper sessile.

  • Provided by: [D].Plants Of the World Online Portal - FZ
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    Bracts hyaline, very delicate and concave, c. 1.5–2 mm. long, frequently splitting with age, glabrous, persistent; bracteoles similar but slightly shorter.

  • Provided by: [D].Plants Of the World Online Portal - FZ
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    Seed c. 1 mm. long, compressed-ellipsoid, chestnut-brown, faintly reticulate.

  • Provided by: [D].Plants Of the World Online Portal - FZ
    • Source: [
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    Ovary ellipsoid, firm only at the extreme apex; style very short, c. 0.25 mm. long.

  • Provided by: [D].Plants Of the World Online Portal - FZ
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    Capsule c. 1–1.25 mm. long, ellipsoid.

  • Provided by: [D].Plants Of the World Online Portal - FZ
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    • 3
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    Prostrate or sometimes decumbent, mat-forming perennial herb with a rootstock considerably thickened for up to c. 5 cm. below the ground and then abruptly more slender, mat from c. 7–70 cm. across.

  • Provided by: [D].Plants Of the World Online Portal - FZ
    • Source: [
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    Leaves variable in size and shape, the lamina narrowly elliptic to broadly ovate, mostly 5–22 × 1.5–14 mm., acute to subacute at the apex, rapidly narrowed below to a broad petiole up to c. 8 mm. long, glabrous or subglabrous on the upper surface, more or less densely lanuginose with long, matted, white hairs on the lower surface, especially when young.

  • Provided by: [D].Plants Of the World Online Portal - FZ
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    • 3
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    Stems numerous from the base, much-branched, branches opposite (or alternate by reduction of one of the pair), more or less densely white-lanate.

  • Provided by: [D].Plants Of the World Online Portal - FZ
    • Source: [
    • 3
    • ]. 

    Stems numerous from the base, much-branched, branches opposite (of alternate by reduction of one of the pair), ± densely white-lanate.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
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    Leaves variable in size and shape, the lamina narrowly elliptic to broadly ovate, mostly 5–22 × 1.5–14 mm., acute to subacute at the apex, rapidly narrowed below to a broad petiole up to ± 8 mm. long, glabrous or subglabrous on the upper surface, ± densely lanuginose with long, matted, white hairs on the lower surface, especially when young.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Prostrate or sometimes decumbent, mat-forming perennial herb with a rootstock considerably thickened for up to ± 5 cm. below the ground and then abruptly more slender, mat from ± 7–70 cm. across.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Tepals united for about half their length, densely sinuose-lanuginose, the lobes very delicate, hyaline except for a pale, firmer midrib, whole perianth ± 2–2.5 mm. long at maturity.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Staminal tube completely adnate to the perianth-tube, the filaments indicated only by short, triangular teeth; anthers very small, ± 0.25 mm., ovoid.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Inflorescences dense, ovoid, of up to ± 10 flowers, whitish, to ± 6 mm. long, the axis long-pilose; lower flowers frequently minutely pedicellate below the bract, the upper sessile.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Bracts hyaline, very delicate and concave, ± 1.5–2 mm., frequently splitting with age, glabrous, persistent; bracteoles similar but slightly shorter.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
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    Ovary ellipsoid, firm only at the extreme tip.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
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    Style very short, ± 0.25 mm.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
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    Capsule ellipsoid, ± 1–1.25 mm.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
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    Seed compressed-ellipsoid, ± 1 mm. chestnut-brown, faintly reticulate.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
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    Pubescent, perennial, prostrate or decumbent herb. Leaves opposite, spathulate. Inflorescences dense glomerules up to 5 mm in diameter, in leaf axils. Flowers white.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
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    Hierba rastrera, 10 cm de altura. Tallo estriado, tricomas pluricelulares 2-3 mm de largo. Hojas pecioladas; pecíolo amplexicaule, 1-2 mm de largo, pubescente; lámina oblanceolada, 0.4-1 x 0.2-0.4 cm, pubescente, base cuneada, ápice agudo. Inflorescencia en espiga, 3-4 x 2-3 mm, axilar; pedúnculo 0.2 mm de largo; bráctea 1, triangular, cóncava, membranácea, mayor que la mitad del perianto, ápice obtuso, glabra, sin nervios; bractéolas 2, elípticas, membranáceas, cóncavas, mayores que la mitad del perianto, sin nervios, glabras; ápice obtuso; pedicelo 0.2 mm de largo. Flores 2.5 x 2 mm, densamente cubiertas por tricomas pluricelulares blancos. Sépalos triangulares, cóncavos, membranáceos, 2-2.5 x 0.3 mm, nervio medio terminado en una arista de 0.1 mm de largo, tricomas sinuosos de 2-3 mm de largo. Estambres 5, 1.3 mm de largo; filamentos connatos formando una copa de 0.8 mm de profundidad; anteras 0.2 mm de largo. Ovario subgloboso, hasta 1.5 mm de largo; estilo 0.2 mm de largo; estigma bilabiado, 0.1 mm de largo. Fruto en utrículo 1.1 x 0.7 mm, glabro. Semilla 1, 0.8 x 0.9 mm, pardo amarillenta.

  • Provided by: [E].Flora de Colombia
    • Fig. 28.

    • Provided by: [C].Plants Of the World Online Portal - FTEA
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      Perennial herb; pubescent. Stems procumbent or decumbent; much branched; many. Leaves opposite; blade narrowly elliptic to broadly ovate, variable in size, 5-22 x 1.5-14.0 mm, decurrent, apex acute, margins entire, upper surface glabrous or subglabrous, lower surface densely hairy with long, matted white hairs. Flowers: inflorescences dense glomerules in leaf axils, up to 5 mm in diameter; perianth white; Nov.-May.

    • Provided by: [B].e-Flora of South Africa
      • Source: [
      • 7
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      Habitat

      Widespread weed of lawns, roadsides and disturbed veld.

    • Provided by: [B].e-Flora of South Africa
      • Source: [
      • 5
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      Vredefort Dome Savanna; Dry Grassland; Mesic Grassland; Dwarf Karroid Shrubland. Widespread weed of lawns, roadsides and disturbed veld.

    • Provided by: [B].e-Flora of South Africa
      • Source: [
      • 7
      • ]. 

      Distribution

      Native to America.

    • Provided by: [B].e-Flora of South Africa
      • Source: [
      • 5
      • ]. 

      Native to America.

    • Provided by: [B].e-Flora of South Africa
      • Source: [
      • 7
      • ]. 

        Bibliography

       Information From

      Amaranthaceae
      World Flora Online Data. 2017.
      • A CC0 1.0 Universal (CC0 1.0).
      e-Flora of South Africa
      e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
      • B All Rights Reserved
      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
      • C
      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
      • D
      Flora de Colombia
      http://www.biovirtual.unal.edu.co/floradecolombia
      Betancur B. Julio., Aguirre-C. Jaime., Amat-G. Germán. (eds.) (2018–): Flora de Colombia. Instituto de Ciencias Naturales, Facultad de Ciencias, Universidad Nacional de Colombia. Published in http://www.biovirtual.unal.edu.co/floradecolombia
      • E Instituto de Ciencias Naturales - Universidad Nacional de Colombia
      World Flora Online consortium
      http://www.worldfloraonline.org/organisation/WFO
      World Flora Online Data. 2018.
      • F CC0 1.0 Universal (CC0 1.0).