Aponogeton rehmannii Oliv.
  • Hookers Icon. Pl.


Cite taxon page as 'WFO (2020): Aponogeton rehmannii Oliv. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000761003. Accessed on: 26 Oct 2020'

Morphology

Leaves few–many (usually 5–10 fresh leaves per plant); petiole 3–30 cm. long and 1–3 mm. thick, usually prominent, but occasionally soft juvenile linear leaves without stalk and blade are produced; blade usually floating on the surface of the water, oval to linear-lanceolate, 3–10 cm. long and 0.3–2.5 cm. wide (East African plants have 3–8 mm. wide blades), with apiculate or subacute tip and cuneate or somewhat rounded base, sometimes strongly attenuate; midrib prominent and with 2–3 weak parallel nerves on each side of the midrib.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 7
    • ]. 

    Spikes bisexual, densely-flowered, 0.5–2.5 cm. long and 4–6(–9 in fruit) mm. wide.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 7
    • ]. 

    Flowers white, densely set in bifid spikes with the flowers facing in all directions; penducles 5–30 cm. long and 0.5–2 mm. thick, green to olive-brown with white or purplish base, not thickened below the inflorescence; spathe up to 10 mm. long, very early caducous.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 7
    • ]. 

    Stamens 6, but often lacking since the plants are often apomictic.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 7
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    Tepals 1–2, white or with a faint pinkish tinge, ovate or obovate, 2–4 mm. long and 0.7–2 mm. wide, 1-nerved.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 7
    • ]. 

    Follicles 5–6 mm. long and ± 3 mm. wide, greyish brown with whitish beak.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 7
    • ]. 

    Ovaries 3–6, grey to purplish when young; ovules 2–6.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 7
    • ]. 

    Seeds cylindrical, straight or slightly curved, 2.5–3.8 mm. long and 0.8–1.2 mm. wide, greyish green, without longitudinal ridges; testa simple.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 7
    • ]. 

    Tuber oval or irregularly shaped, 15–40 mm. long and 10–25 mm. thick, densely set with white or brownish roots in upper part.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 7
    • ]. 

    Plants monoecious.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 7
    • ]. 

    Freshwater aquatic with tuberous rhizome. Leaves with a distinct blade, almost always floating. Petiole up to 300 mm long. Inflorescence with 2 spikes, ± 15 mm long. Flowers turned in all directions, white or pale pink.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 8
    • ]. 

    Fresh-water aquatic with tuberous rhizome. Leaves with a distinct blade, almost always floating; petioles up to 300 mm long. Flowers: inflorescence with 2 spikes, ± 15 mm long, flowers turned in all directions; stamens usually absent; perianth segments 2-3 mm long, white or pale pink; Nov.-Apr. Seeds with 2 coats.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 10
    • ]. 

    Habitat

    Temporary, shallow pools, flooded pans, muddy banks.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 8
    • ]. 

    Vredefort Dome Savanna; Dry Grassland. Temporary, shallow pools, flooded pans, muddy banks.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 10
    • ]. 

      Bibliography

     Information From

    Aponogetonaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    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
    • B
    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
    • C All Rights Reserved
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • D 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
    • E 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.
    • F See IUCN Terms and conditions of use http://www.iucnredlist.org/info/terms-of-use