Aponogeton junceus Lehm. ex Schltdl.
  • Linnaea


Cite taxon page as 'WFO (2020): Aponogeton junceus Lehm. ex Schltdl. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000760965. Accessed on: 23 Feb 2020'

Morphology

Rhizomatous aquatic. Leaves floating, lanceolate to linear. Flowers distichous, white to lilac, with 1-3 tepals, stamens usually 6.

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

    Tubers globose, up to 3 cm in diam., greyish brown. Leaves heterophyllous; filiform to subtrigonous, 4-25 cm long; or apically expanded into an erect spathulate lamina; or a floating, oblong blade up to 17 cm long and 4-5 cm broad is formed, with the base and apex attenuate or rounded. Spikes bifid, usually 2-4 cm long and 8 mm broad (up to 9 cm long and 2.5 cm broad), lengthening during anthesis, many-flowered. Flowers bisexual or female,(through suppression of stamens), scentless, situated dorsally on the rhachis or only so near the base, with the upper flowers arranged all around the rhachis; perianth-segments 1.2 or 3, oblong-lanceolate, white, pink or mauve, with a shiny, soft texture, becoming green and firm with age. Stamens usually 6, slightly longer than the perianth-segments, equalling more or less the carpels; filaments swollen at the base, tapered above; pollen ellipsoid. Carpels up to 18 cm lower flowers, usually 76 mm upper, ovoid, with a curved beak above, stigmatic ridge dark, ovules 1-8, basal. Follicles green, firm, somewhat transparent, 3-5 mm long; seeds fusiform, 2 mm long, outer spongy covering thin; usually 1 or 2 seeds ripening per follicle.

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

    Fresh-water aquatic with tuberous rhizome. Tuber globular or obovoid. Leaves 40-430 mm long, needle-like or band-shaped, usually without a blade, often upright and emergent. Flowers: inflorescence with 2 spikes, flowers arranged along one side; perianth segments with 1-7 veins, ± 4 mm long, white or pink; Oct.-Apr. Seeds with 1 coat.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Habitat

    Ponds, marshes and rivers.

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

    Common in fresh-water ponds, marshes and rivers, growing on the bank, or submerged with the lamina floating and the flower spikes exserted.

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

    Vredefort Dome Savanna; Dry Grassland; Mesic Grassland; Dwarf Karroid Shrubland. Shallow water, pools, swamps, flood plain pans, dams.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Distribution

    Riversdale to Zimbabwe and N Namibia.

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

    Widespread in Southern Africa, with the exception of the winter-rainfall area, and extending to Rhodesia and Angola.

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

      Bibliography

    • 1 Linnaea
    • 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.
    • 4 Retief, E; Meyer, NL. 2017. Aponogetonaceae. In: E Retief & NL Meyer (eds), Plants of the Free State: Inventory and identification guide. Strelitzia 38: 844 - 844. South African National Biodiversity Institute, Pretoria.

     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 v.3
    https://www.iucnredlist.org/
    IUCN 2019. The IUCN Red List of Threatened Species. Version 2019-1.
    • D See IUCN Terms and conditions of use http://www.iucnredlist.org/info/terms-of-use
    International Union for Conservation of Nature
    https://www.iucn.org/
    IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
    • E All Rights Reserved