Aponogeton angustifolius Aiton
  • Hort. Kew.


Cite taxon page as 'WFO (2019): Aponogeton angustifolius Aiton. Published on the Internet; http://www.worldfloraonline.org/taxon/wfo-0000760918. Accessed on: 21 Oct 2019'

Morphology

Rhizomatous aquatic. Leaves floating, small, elliptic to lanceolate. Flowers distichous, white, with 2 tepals, stamens usually 6.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    Tubers globose, 2 cm in diam., brown. Leaves: primary rarely developed, submerged, filiform to linear, with a wavy margin, tapered above and below; later leaves petioled and with a floating lamina, narrowly lanceolate to oblong, c. 5 cm long and 1 cm broad, apex acute, base rounded to attenuate, lateral nerves indistinct, margin slightly prominent. Spikes bifid, compact at first, lengthening during anthesis, in fruit up to 2 cm long, laxly 4-8-flowered. Flowers scentless, situated dorsally on the rhachis; perianth-segments 2, white with a pinkish tinge below, oblong-lanceolate, 5-10 mm long, accrescent in fruit. Stamens usually 6, filaments subulate, 2-4 mm long, anthers black. Carpels 2-4, ovules 2. Follicles narrow-ovoid, green, membranous, 8 mm long, with a straight beak; seeds 7 mm long, with a thin spongy outer covering.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Habitat

    Pools and ditches.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    Distribution

    Malmesbury to Worcester.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    Confined to the south-western Cape.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

      Bibliography

    • 1 Hort. Kew.
    • 2 Manning, JC; Goldblatt, P. 2012. Aponogetonaceae. 62 - 63. South African National Biodiversity Institute, Pretoria.
    • 3 Obermeyer, AA. 1966. Order: Helobiae. Fl. S. Africa 1: 56 - 112. BRI & Nat. Bot. Gdns, Pretoria & Cape Town.

     Information From

    Aponogetonaceae
    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
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • C CC0 1.0 Universal (CC0 1.0).
    International Union for Conservation of Nature
    https://www.iucn.org/
    IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
    • D All Rights Reserved
    International Union for Conservation of Nature v.3
    https://www.iucnredlist.org/
    IUCN 2019. The IUCN Red List of Threatened Species. Version 2019-1.
    • E See IUCN Terms and conditions of use http://www.iucnredlist.org/info/terms-of-use