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  1. Family: Aponogetonaceae Planch.
    1. Genus: Aponogeton L.f.
      1. Aponogeton afroviolaceus Lye

        This species is accepted, and its native range is Kenya to Zimbabwe.


    Aponogetonaceae, K.A. Lye (Agricultural University of Norway). Flora of Tropical East Africa. 1989

    Plants monoecious.
    Tuber oval to elongate or cylindrical, 10–25 mm. long and ±15 mm. thick, the upper part with numerous whitish roots.
    Leaves few–many (often 3–15 per plant); petiole usually 5–20 cm. long; blades 2–8 cm. long and 3–16 mm. wide, oval to linear-oblong, with 5–7 parallel main nerves, cuneate to truncate base and blunt or subacute tip, more rarely the blades have a long attenuate base and are then not well separated from the petiole.
    Flowers mauve to lilac, densely set in unbranched spikes and facing in all directions; peduncle greenish, but often white to mauve below, dull maroon to brown above, 5–30 cm. long (depending on the depth of the water) and 0.5–2.5 mm. thick; mature spathe not seen, very early caducous.
    Spike 6–30 mm. long and 5–10 mm. wide, 10–30-flowered, sometimes elongating to 40 mm. long when fruiting.
    Tepals 2, purple or mauve, obovate or spathulate, 2–6 mm. long and 1–1.4 mm. wide, 1-nerved, long-persistent.
    Stamens 6 or 1 or lacking in apomictic specimens; filaments 1.5–3 mm. long, purple, thickened towards the base; anthers yellow to dark brown, 0.3–0.7 mm. long, the connective sometimes with a flattened conical protuberance ± 1 mm. long.
    Ovaries 3–8, mauve, with 2–9 ovules.
    Follicles greenish, 3.5–6 mm. long and ±1.5 mm. wide including a ± 1.5 mm. long narrow beak which is often dark purple at the tip.
    Seeds narrowly oblong-lanceolate to cylindrical, often slightly curved, 1–2 mm. long and ± 0.5 mm. wide, with a double testa, longitudinally ridged or winged, at maturity almost blackish.



    Native to:

    Kenya, Tanzania, Zambia, Zimbabwe


    Other Data

    Aponogeton afroviolaceus Lye appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Feb 6, 1985 Lye, K.A. [6348], Kenya K000346039 isotype
    May 12, 1986 Faden, R.B. [67312], Kenya Aponogeton afroviolaceus var. angustifolius K000211091


    First published in Bot. Not. 129: 68 (1976)

    Accepted by

    • Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
    • Mapaura, A. & Timberlake, J. (eds.) (2004). A Checklist of Zimbabwean Vascular Plants: 1-148. Southern African Botanical Diversity Network (SABONET), Pretoria.
    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.
    • Lye, K.A. (1989). Aponogetonaceae Flora of Tropical East Africa: 1-10.


    Flora of Tropical East Africa

    • H. Bruggen in Bibl. Bot. 33, 137: 50 (1985).
    • Lye in Bot. Notis. 129: 68 (1976).


    Flora of Tropical East Africa
    Flora of Tropical East Africa

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    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at and
    © Copyright 2017 World Checklist of Selected Plant Families.

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at and
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.