Xyris anceps Lam.
  • Tabl. Encycl.


Cite taxon page as 'WFO (2020): Xyris anceps Lam. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000608647. Accessed on: 27 Nov 2020'

Morphology

Herb

  • Provided by: [B].Plants Of the World Online Portal - FWTA
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    A fan of leaves reddish at the base

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    Inflorescence pale yellowish, 1 ft. or more high

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    Annual or perennial herbs.

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    Ovary obovoid to ellipsoid; stigmas much- branched, forming a dense mass.

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    Capsule ellipsoid.

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    Leaves linear, flattened, glabrous, tapering to the asymmetrically obtuse apex.

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    Seeds ellipsoid to broadly ellipsoid, with 12–13 longitudinal ridges joined by rather prominent cross-walls.

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    Peduncles glabrous, hollow, terete but markedly 2-winged particularly towards the apex; spikes broadly ovoid to subspherical, later ovoid; sterile bracts 4, broadly obovate to suborbicular, pale golden brown with a subterminal narrowly ovate greyish dorsal mark; fertile bracts suborbicular to elliptic, very convex, golden brown with a dull brown to grey subapical triangular dorsal mark.

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    Lateral sepals curved, golden brown, with an entire keel; corolla yellow.

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    Staminodes branched, the branches bearing tufts of hairs.

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    Coarse, annual herb, up to 400 mm tall. Leaves distichous, 2-8 from a small base. Scape ancipitous, uniformly green. Spikes many-flowered. Bracts stramineous. Flowers yellow.

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    Soft herbs up to c. 0.7 m tall. Leaves distichously arranged, each shoot consisting of a scape enveloped basally by 1-2 leaves and a sheath, linear, up to 240 x 5 mm, apex acute. Scapes 2-3 times as long as leaves, strongly two-edged, especially so above; sheath resembling leaf but shorter. Spikes broadly ellipsoid to spherical, up to c. 14 mm tall, many-flowered. Bracts numerous and rather regularly spirally arranged, broadly ovate, acute, convex, shiny, yellow to olive green, with a grey diamond-shaped depression below acute apex, often splitting with age. Lateral sepals short and curved, folded, with a glabrous entire keel. Perianth typical. Capsule flattened, oblong, obtuse; seeds ellipsoid, 0.3-0.5 mm, typical.

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    Ecology

    In wet places, rice fields and mangrove swamps.

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    Habitat

    Seepline bog.

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    Commonly inhabiting coastal swamps.

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    Distribution

    Recorded from the south-eastern Transvaal (only once!), Natal and Transkei, as far south as Pondoland; also in subtropical to tropical Africa, Mascarene Islands and in Brazil.

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    Distribution Map

     
    • Native distribution
    Found in
    • Southern America Brazil Acre
    • Amapí
    • Parí
    • Bahia
    • Ceará
    • Maranh
    • Paraába
    • Pernambuco
    • Piauá
    • Rio Grande do Norte
    • Sergipe
    • Minas Gerais
    • São Paulo

      Bibliography

     Information From

    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
    • A All Rights Reserved
    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
    Brazilian Flora 2020 project - Projeto Flora do Brasil 2020
    http://floradobrasil.jbrj.gov.br
    Brazil Flora G (2014): Brazilian Flora 2020 project - Projeto Flora do Brasil 2020. v393.147. Instituto de Pesquisas Jardim Botanico do Rio de Janeiro. Dataset/Checklist. doi:10.15468/1mtkaw
    • C Group Brazil Flora, REFLORA Program
    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
    • D
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).
    Xyridaceae
    • F CC0 1.0 Universal (CC0 1.0).