1. Family: Cyperaceae Juss.
    1. Genus: Carex L.
      1. Carex cognata Kunth

        This species is accepted, and its native range is Uganda to Angola and 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, Zwellendam et George, Mundt s.n. (B†, holo.)
    Habit
    Tufted perennial from creeping rhizome with short scaly stolons.
    Stem
    Stems 0.3–1 m tall, glabrous
    Leaves
    Leaf-blades 10–80(–120) cm long, 3–7(–10) wide, plicate, scabrid on the margins at least at the tips; some transverse ribs occur between the longitudinal veins but are obscure
    Bracts
    Main inflorescence bracts leafy, 3–6 times as long as spikes. Bracts successively smaller upwards
    Inflorescences
    Inflorescence of 4–6 pale, erect, crowded, sessile or subsessile spikes (or in S Tanzania and South Africa the peduncles sometimes welldeveloped). Spikes 2–3, 1–4 cm long, 2–4 mm wide, the terminal spike male and lateral spikes female with conspicuous crown of empty scales at the tip.
    Glume
    Glumes pale golden brown, dark brown or red-brown, 3–5 mm long, acuminate, densely scabrid on margin and veins
    Fruits
    Utricles pale greenish, golden brown or red-brown, ovoid, 3–4.5 mm long (including beak 1–1.5 mm long), many-veined; beak glabrous, strongly two-toothed Nutlet yellowish white or dark with pale edges with a long persistent curving style.

    Images

    Distribution

    Native to:

    Angola, Botswana, Burundi, Cape Provinces, Free State, KwaZulu-Natal, Lesotho, Malawi, Namibia, Northern Provinces, Rwanda, Swaziland, Tanzania, Uganda, Zaïre, Zimbabwe

    Carex cognata Kunth appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Rogers, F.A. [10 082], Congo, DRC Carex congolensis K000363484 Unknown type material
    Aug 25, 1896 Buchanan [112], South Africa Carex drakensbergensis K000363598
    Aug 25, 1896 Buchanan [136], South Africa Carex drakensbergensis K000363597
    Aug 25, 1896 Buchanan [137], South Africa Carex drakensbergensis K000363596

    First published in Enum. Pl. 2: 502 (1837)

    Accepted by

    • Archer, C. & Balkwill, K. (2012). Identity and typification of Carex cognata and status of C. drakensbergensis Bothalia 42: 190-193.
    • 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. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.

    Not accepted by

    • Gehrke, B. (2011). Synopsis of Carex (Cyperaceae) from sub-Saharan Africa and Madagascar Botanical Journal of the Linnean Society 166: 51-99. [Cited as Carex clavata.]

    Literature

    Kew Backbone Distributions
    • Archer, C. & Balkwill, K. (2012). Identity and typification of Carex cognata and status of C. drakensbergensis Bothalia 42: 190-193.
    • Gehrke, B. (2011). Synopsis of Carex (Cyperaceae) from sub-Saharan Africa and Madagascar Botanical Journal of the Linnean Society 166: 51-99.
    • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.
    Flora of Tropical East Africa
    • Fl. Eth. 6: 510 (1997).
    • Strelitzia 2: 39 fig. 13 G–I, 14 (quite unlike any E. African material) (1995)
    • Fl. Rwanda 4: 429 (1988)
    • Haines & Lye, Sedges & Rushes E. Afr.: 383 (1983)
    • Journ. E. Afr. Nat. Hist. Soc. 24 (106): 12, fig. 20, 21 (1963)
    • Enum. Pl. 2: 502 (1837)

    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