Skip to main content
  1. Family: Orchidaceae Juss.
    1. Genus: Disa P.J.Bergius
      1. Disa ochrostachya Rchb.f.

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

    [FWTA]

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

    Habit
    An erect terrestrial herb, 1-3 ft. high
    Leaves
    Sheathing lanceolate leaves on flowering stems; foliage leaves on separate shoot, narrow, up to 15 in. long
    Inflorescences
    Flower spike long and slender
    Flowers
    Flowers yellow with orange markings
    Ecology
    In grassland.
    [FZ]

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

    Shoots
    Sterile shoots to 15 cm tall, with 2–3 erect, acute narrowly elliptic conduplicate leaves 15–20 × 4 cm. Fertile shoots slender to robust, 40–90 cm tall; cauline leaves imbricate, the basal leaf completely sheathing, the remainder with small free blades 5–9 × 1–3(4) cm, acute or apiculate.
    Sterile
    Sterile shoots to 15 cm tall, with 2–3 erect, acute narrowly elliptic conduplicate leaves 15–20 × 4 cm.
    Fertile
    Fertile shoots slender to robust, 40–90 cm tall; cauline leaves imbricate, the basal leaf completely sheathing, the remainder with small free blades 5–9 × 1–3(4) cm, acute or apiculate.
    Inflorescences
    Inflorescence dense, 15–30 cm long, cylindrical, tapering, 50–200-flowered.
    Bracts
    Bracts 1.5–2.5 cm long, acute to acuminate, with the apices reflexed.
    Flowers
    Flowers c. 1 cm in diameter, bright yellow or yellow with orange mottling.
    Calyx
    Dorsal sepal obovate, obtuse, galea 6–9 mm long, 4–7 mm wide and 2–3 mm deep, curved to face down. Lateral sepals 6–9 × 3–6 mm, narrowly oblong, obtuse to subacute, spreading sideways.
    Spur
    Spur pendent from the middle of the galea, 7–12 mm long, ± inflated in the lower half, subacute.
    Corolla
    Petals bifid; posterior lobe 5–7.5 × 1–2 mm, obtuse or subacute, erect behind the anther; anterior lobe 3–6 mm long, narrow and reaching two thirds up the length of the main petal and flanking the anther, rarely taller.
    Labellum
    Lip 5–9 mm long, linear, rarely irregularly toothed, pendent.
    Stigma
    Stigma 0.5–1 mm tall, lateral lobes well developed.
    Ovary
    Ovary 1–1.5 cm long.

    Images

    Distribution

    Native to:

    Angola, Burundi, Cameroon, Congo, Kenya, Malawi, Rwanda, Sudan, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

    Synonyms

    Other Data

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

    Date Reference Identified As Barcode Type Status
    Feb 1, 1970 Saxer, A. [2], Cameroon K000106518
    Zambia 17326.020
    Milne-Redhead, E. [8921], Tanzania 514.000
    Verdcourt, B. [3411], Tanzania 6679.000
    Tweedie, E.M. [664], Kenya 512.000
    Robson, N.K.B. [645], Malawi 515.000
    Richards, H.M. [7703], Tanzania 20692.000
    Richards, H.M. [14017], Tanzania 3746.000
    Richards, H.M. [14241], Tanzania 3819.000
    Richards, H.M. [10449], Malawi 516.000
    Norlindh, T. [4766], Zimbabwe 511.000
    Williamson, G. [146], Zambia 6049.369
    Maitland, T.D. [1779], Cameroon K000106516
    Maitland, T.D. [1779], Cameroon K000106517
    Cribb, P.J. [6004], Malawi 49143.000
    Cribb, P.J. [6003], Malawi 49144.000
    Bally, P.R.O., Kenya 513.000
    Welwitsch [712], Angola K000077508 Unknown type material

    Bibliography

    First published in Flora 48: 181 (1865)

    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.
    • 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: 279.
    • 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