1. Family: Cyperaceae Juss.
    1. Genus: Isolepis R.Br.
      1. Isolepis natans (Thunb.) A.Dietr.

        This species is accepted, and its native range is SW. Tanzania to S. Africa.

    [FTEA]

    Cyperaceae, K Hoenselaar, B. Verdcourt & H. Beentje. Hypolytrum, D Simpson. Fuirena, M Muasya. Flora of Tropical East Africa. 2010

    Type
    Type: South Africa, Thunberg 1633 (UPS, holo.)
    Habit
    Tufted annual or short-lived perennial.
    Rhizomes
    Rhizome whitish, ascending, 1–2 × 1–2 mm.
    Culms
    Culms 4.5–10 cm tall, 0.3–2.2 mm diameter, without nodes
    Leaves
    Leaves with brown sheath 8–14 × 0.6–1 mm; blade 5–18 × 0.2–1.5 mm
    Inflorescences
    Inflorescence pseudolateral, occasionally proliferating.
    Bracts
    Bract 3–7 × 0.2–0.4 mm.
    Spikelets
    Spikelets 1–3, 2.1–4.7 × 1.3–2 mm, with 8–45 glumes.
    Glume
    Glumes green to dark brown, 1.3–1.8 × 0.4–0.7 mm, acute, midrib green with mucro < 0.1 mm
    Stamens
    Stamens 2.
    Anthers
    Anthers 0.6–0.7 mm, not crested
    Style
    Style trifid
    Fruits
    Nutlets dark brown, 0.8–1 × 0.4–0.5 mm, minutely papillose.
    Ecology
    Swampy grassland; 1980 m
    Distribution
    Range: Angola, Zimbabwe, South Africa Flora districts: T7

    Images

    Distribution

    Native to:

    Angola, Cape Provinces, KwaZulu-Natal, Northern Provinces, Tanzania, Zimbabwe

    Isolepis natans (Thunb.) A.Dietr. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Zeyher [s.n.] K000416605
    Drege [7410], South Africa K000416604
    Drege [7410], South Africa K000416606
    Drege [2463], South Africa K000416607
    Wood, J.M. [227], South Africa K000416608

    First published in Sp. Pl. 2: 106 (1833)

    Accepted by

    • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.
    • Govaerts, R. & Simpson, D.A. (2007). World Checklist of Cyperaceae. Sedges: 1-765. The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Govaerts, R. (2004). World Checklist of Monocotyledons Database in ACCESS: 1-54382. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.
    Flora of Tropical East Africa
    • K.B. 57: 282 (2002).
    • Sedges & Rushes E. Afr.: 138 (1983)
    • Sp. Pl. 2: 106 (1833)

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0