1. Family: Cyperaceae Juss.
    1. Genus: Carex L.
      1. Carex johnstonii Boeckeler

        This species is accepted, and its native range is Ethiopia to Malawi.

    [FTEA]

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

    Type
    Type: Tanzania, Kilimanjaro, Johnston s.n. (K!, holo.; B†, K!, iso.)
    Habit
    Tufted perennial 0.35–1.5 m tall with short creeping rhizome
    Leaves
    Leaf-blades 25–40(–60) cm long, 4–8(–10) mm wide with scabrid margins and veins; basal leaf sheaths dark red or reddish brown, 1–4 cm long
    Inflorescences
    Inflorescence a very narrow slender panicle, mostly unbranched or in robust specimens with 2–3 branches from each node; main bracts leafy.
    Spikelets
    Spikelets 1–4(–7) cm long, 5 mm wide. Upper ones shortly stalked or sessile, lower ones with 5–20 cm long peduncles, with few male flowers above and 6–12 laxly arranged female flowers below.
    Glume
    Glumes pale brown with green midrib, glabrous save for scabrid midrib, acuminate
    Fruits
    Utricle green, brown-speckled or sometimes darker reddish brown, with distinct veins on both sides, 8–12 mm long including the slightly scabrid 2–4 mm long beak, hairy mostly below the beak.
    Ecology
    Giant heath zone, Podocarpus, Hagenia bamboo etc. forest and forest edges; (750–)2200–3300(–3600) m
    Note
    " Luke et al. 6905 (Iringa District: Udzungwa Mts, Luhomero Mt, 3 Oct. 2000) has very dark chestnut glumes and dark utricles with pale ribs densely shortly pubescent. The whole inflorescence appears dark brown. It may be a distinct taxon.
    Distribution
    Range: E Congo-Kinshasa, Ethiopia, Malawi Flora districts: U2 U3 K3 K4 K5 K6T2 T6 T7

    Images

    Distribution

    Native to:

    Ethiopia, Kenya, Malawi, Rwanda, Sudan, Tanzania, Uganda, Zaïre

    Carex johnstonii Boeckeler appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Oct 12, 2005 Bogdan, A. [4130], Kenya K000333539
    Oct 12, 2005 Thulin, M. [s.n.], Kenya K000333540
    Sep 22, 2002 Haines, W. [161], Kenya K000333542
    Jan 1, 2001 Smith, S.A.L. [185], Kenya K000333541
    Feb 18, 1899 Johnston, H.H. [s.n.], Tanzania K000363451 isotype
    Mar 25, 1895 Volkens, G. [1124], Tanzania K000363449 isotype
    Gillett, J.B. [16651], Kenya K000333545
    Glover, P.E. [1152], Kenya K000333547
    Glover, P.E. [1085], Kenya K000333549
    Bogdan, A. [2835], Kenya K000333546
    Luke, W.R.Q. [8990], Kenya K000333543
    Napper, D.M. [650], Kenya K000333538
    K000363450 holotype
    Kerfoot, O. [469], Kenya K000333544
    Kerfoot, O. [53], Kenya K000333548
    Maas Geesteranus, R.A. [5903], Kenya K000333537

    First published in Bot. Jahrb. Syst. 7: 278 (1886)

    Accepted by

    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • 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.
    • 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.

    Literature

    Kew Backbone Distributions
    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • 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: 507, fig. 212.181 (1997).
    • Fl. Rwanda 4: 429, fig. 177.3 (1988)
    • Haines & Lye, Sedges & Rushes of E. Afr.: 377, fig. 777 (1983)
    • Journ. E. Afr. Nat. Hist. Soc. 24 (106): 10, fig. 30 (1963)
    • Robyns & Tournay, F.P.N.A. 3: 290 (1955)
    • F.D.O.A. 1: 539 (1938)
    • E.P. 4, 20 (Cyp.-Car.): 593, fig. 100 (1909)
    • F.T.A. 8: 521 (1902)
    • P.O.A. C.: 129 (1895)
    • Durand & Schinz, Consp. Fl. Afr. 5: 686 (1895)
    • Engl., Hochgebirgsfl. Trop. Afr.: 151 (1892)
    • Trans. Linn. Soc. ser. 2 Bot. 2: 353 (1887)
    • E.J. 7: 278 (1886)

    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