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  1. Family: Orchidaceae Juss.
    1. Genus: Disa P.J.Bergius
      1. Disa welwitschii Rchb.f.

        This species is accepted, and its native range is Tropical & S. Africa.

    [FZ]

    Orchidaceae, I. la Croix and P.J. Cribb. Flora Zambesiaca 11:1. 1995

    Habit
    Terrestrial herb with separate sterile and fertile shoots.
    Shoots
    Sterile shoots to 15 cm tall, with 2–4 suberect conduplicate leaves, 10–30 × 1–4 cm, linear-elliptic, acute or apiculate; basal sheath, often blotched or red-striped. Fertile shoots 20–100 cm tall; leaves imbricate to subimbricate, the basal 2 reduced to short sheaths blotched with red; the remainder 3–10 cm long, lanceolate, subacuminate, mostly sheathing.
    Sterile
    Sterile shoots to 15 cm tall, with 2–4 suberect conduplicate leaves, 10–30 × 1–4 cm, linear-elliptic, acute or apiculate; basal sheath, often blotched or red-striped.
    Fertile
    Fertile shoots 20–100 cm tall; leaves imbricate to subimbricate, the basal 2 reduced to short sheaths blotched with red; the remainder 3–10 cm long, lanceolate, subacuminate, mostly sheathing.
    Inflorescences
    Inflorescence dense, 3–14 cm long, 20–100-flowered.
    Bracts
    Floral bracts inconspicuous, as long as the ovaries, taller than ovaries at base of inflorescence, narrowly ovate, acuminate.
    Flowers
    Flowers bright red to carmine, or pink.
    Calyx
    Dorsal sepal subrhomboid; galea 4.5–11 mm long, narrowly oblong to lanceolate, subacute. Lateral sepals suboblique, 5–12 × 3–6(8) mm, oblong-ovate, obtuse to rounded.
    Spur
    Spur pendent from below the middle of the galea, reaching to below the base of the sepal, slender, 3.5–9 mm long, cylindrical to rarely subclavate.
    Corolla
    Petals 2-lobed; anterior lobe 3–7(8.5)× 2.5–6 mm, ovate, spreading, the upper margin incurved; posterior lobe equalling anterior lobe in length, or exceeding it by one third, truncate or ovate lanceolate.
    Labellum
    Lip 4–12 mm long, linear.
    Anthers
    Anther 3–5 mm long.
    Stigma
    Stigma equally 3-lobed.
    Ovary
    Ovary 10–20 mm long.
    [FWTA]

    Orchidaceae, V. S. Summerhayes. Flora of West Tropical Africa 3:1. 1968

    Habit
    An erect terrestrial herb, 1-3 ft. high
    Leaves
    Linear leaves up to 18 in. long on sterile shoots and sheaths on the scape
    Flowers
    Flowers pink or purple
    Ecology
    In grasslands and swamps.

    Images

    Distribution

    Native to:

    Angola, Burundi, Cameroon, Central African Repu, Congo, Gabon, Guinea, Ivory Coast, Kenya, Liberia, Malawi, Mozambique, Nigeria, Northern Provinces, Sierra Leone, Sudan, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

    Accepted Infraspecifics

    Other Data

    Disa welwitschii Rchb.f. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    May 17, 2010 Timberlake, J. et al. [5043], Mozambique K000718181
    Nov 27, 1962 Busse, W. [834], Tanzania K000415999 Unknown type material
    Zambia 33718.000
    Holmes, W.D. [075], Zambia 20925.000
    Milne-Redhead, E. [8157], Tanzania 522.000
    Watermeyer, A.M. [210], Tanzania 26622.000
    Richards, H.M. [12421], Zambia 26792.000
    Bullock, A.A. [2252], Tanzania 20697.000
    Ball, J.S. [761], Congo, DRC 3804.000
    Robson, N.K.B. [1163], Malawi 524.000
    Robson, N.K.B. [1116], Zambia 525.000
    Chancellor, R.J. [91], Uganda 1851.000
    Richards, H.M. [14368], Zambia 1835.000
    Richards, H.M. [12098], Zambia 18536.000
    Richards, H.M. [4182], Zambia 18546.000
    Richards, H.M. [4324], Zambia 25780.000
    Richards, H.M. [4391A], Zambia 26686.000
    Richards, H.M. [17243], Zambia 26797.000
    Richards, H.M. [19333], Zambia 29956.000
    Richards, H.M. [22943], Zambia 31500.000
    Richards, H.M. [8376], Zambia 523.000
    Richards, H.M. [8110], Zambia 6656.000
    Robinson, E.A., Zambia 30017.000
    Robinson, E.A. [2113], Zambia 520.000
    Robinson, E.A. [4125], Zambia 526.000
    Fanshawe, D.B. [1778], Zambia 519.000
    Fanshawe, D.B. [2695], Zambia 521.000
    Greatrex, F.C. [26783], Zimbabwe 25254.000
    Williamson, G. [226], Zambia 33781.000
    Williamson, G. [232], Zambia 6049.374
    Bogdan, A. [10,191], Kenya 3803.000
    Kaoomba, R. [3674], Zambia 1850.000
    Cribb, P.J. [6015], Malawi 49146.000
    Daromola, B.O. [41178], Cameroon 25165.000
    Morze, G. [45B], Zambia 29829.000
    Morze, G. [45], Zambia 36593.000
    Morze, G. [45], Zambia 36596.000
    Morze, G. [45B], Zambia 36599.000
    Schaijes, M. [2175], Congo, DRC 48952.000
    Kasompa, R. [2991], Zambia 518.000
    Patel, H. [7368], Mozambique K000613630
    Timberlake, J. [5043], Mozambique K000613422
    Timberlake, J. [5043], Mozambique 76201.000
    Patel, H. et al. [7368], Mozambique K000718665

    Bibliography

    First published in Flora 48: 181 (1865)

    Accepted by

    • Szlachetko, D.L. (2008). Orchidaceae of Ivory Coast Ruizia 20: 1-396.
    • Szlachetko, D. & Kowalkoska, A. (2007). Contributions to the orchid flora of Guinea, West Africa Polish Botanical Studies 25: 1-259.
    • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
    • Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of West Tropical Africa

    • F.T.A. 7: 280.
    • in Flora 48: 181 (1865)

    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.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Flora of West Tropical Africa
    Flora of West Tropical 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 2020. 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 2020. 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