Skip to main content
  1. Family: Polygonaceae Juss.
    1. Genus: Persicaria Mill.
      1. Persicaria madagascariensis (Meisn.) S.Ortiz & Paiva

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

    [FZ]

    Flora Zambesiaca. Vol. 9, Part 3. Polygonaceae-Myriaceae. Pope GV, Polhill RM, Martins ES. 2006.

    Type
    Type from Madagascar.
    Habit
    A straggling or erect, perennial herb with a long rhizome; plants forming dense clumps A straggling or erect, perennial herb with a long rhizome; plants forming dense clumps.
    Stem
    Stems up to 2 m tall, brownish, branched, basally creeping and rooting at the lower nodes, appressed hairy, more rarely glabrous Stems up to 2 m tall, brownish, branched, basally creeping and rooting at the lower nodes, appressed hairy, more rarely glabrous.
    Ovary
    Ovary 1.5–2 mm in diameter, globose to ± compressed; styles 2, united at or shortly below the middle
    Ecology
    Growing in damp places near and often in water, in and beside dams, lakes and rivers, also in roadside drainage channels and among grasses in wet sandy soil; sea level–1800(1950) m.
    Distribution
    Botswana Mozambique Malawi Widespread in tropical, subtropical and South Africa, Madagascar and Asia. Zimbabwe Zambia BOT N, ZAM B, ZAM N, ZIM N, MAL N, MAL C, MOZ N, MOZ Z, MOZ T, MOZ GI, MOZ M
    Leaves
    Leaf lamina variable in size and shape, 12–18(25) × 0.5–5.5(8) cm, usually linear-lanceolate, elliptic-lanceolate, oblong-lanceolate or oblong-elliptic, usually broadest below the middle, sometimes narrowed to a long-attenuate acute or acuminate apex, narrowed to the base, pubescent on upper surface, rarely with sessile glands, pubescent to sometimes silky-pilose beneath; midrib often prominent beneath, lateral nerves many, ± prominent and arcuately ascending; petiole up to 1.5 cm long, the upper leaves sometimes subsessile. Leaf lamina variable in size and shape, 12–18(25) × 0.5–5.5(8) cm, usually linear-lanceolate, elliptic.lanceolate, oblong-lanceolate or oblong-elliptic, usually broadest below the middle, sometimes narrowed to a long-attenuate acute or acuminate apex, narrowed to the base, pubescent on upper surface, rarely with sessile glands, pubescent to sometimes silky-pilose beneath; midrib often prominent beneath, lateral nerves many, ± prominent and arcuately ascending; petiole up to 1.5 cm long, the upper leaves sometimes subsessile
    Ocrea
    Ocrea yellowish to bright brown, 1.2–3.5(4) cm long, membranous, setose outside or glabrescent, apex truncate with a fringe of long rigid bristles 7–14 mm long, as long as or shorter than the tube. Ocrea yellowish to bright brown, 1.2–3.5(4) cm long, membranous, setose outside or glabrescent, apex truncate with a fringe of long rigid bristles 7–14 mm long, as long as or shorter than the tube
    Flowers
    Flowers pedicellate, in fascicles of 2–5; fascicles numerous, surrounded by ciliate bracts and borne in 2–5 dense or very dense pedunculate, terminal or lateral, spiciform racemes 3–8 × 1(2) cm in size; peduncles stout, often in pairs from the uppermost ocrea, densely covered with rigid appressed-ascending hairs. Flowers pedicellate, in fascicles of 2–5; fascicles numerous, surrounded by ciliate bracts and borne in 2–5 dense or very dense pedunculate, terminal or lateral, spiciform racemes 3–8 × 1(2) cm in size; peduncles stout, often in pairs from the uppermost ocrea, densely covered with rigid appressed-ascending hairs
    Bracts
    Bracts reddish, setose or ± glabrous outside, ovate, apices truncate with fringes of long hairs. Bracts reddish, setose or ± glabrous outside, ovate, apices truncate with fringes of long hairs
    Perianth
    Perianth pink in bud, white or pale pink when open, 3–5 mm long, 5-lobed; lobes 2–3 mm long, oblong-elliptic. Perianth pink in bud, white or pale pink when open, 3–5 mm long, 5-lobed; lobes 2–3 mm long, oblong-elliptic. Stamens 7; filaments 1–1.5 mm long, filiform; anthers pink, 0.4 × 0.2 mm, oblong-ellipsoid
    Stamens
    Stamens 7; filaments 1–1.5 mm long, filiform; anthers pink, 0.4 × 0.2 mm, oblong-ellipsoid.
    Pistil
    Ovary 1.5–2 mm in diameter, globose to ± compressed; styles 2, united at or shortly below the middle.
    Fruits
    Nut black and shiny, (1)2–3 mm in diameter, lenticular, convex. Nut black and shiny, (1)2–3 mm in diameter, lenticular, convex.

    Images

    Distribution

    Native to:

    Angola, Benin, Botswana, Burkina, Burundi, Cape Provinces, Central African Repu, Chad, Congo, Ethiopia, Free State, Gabon, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Kenya, KwaZulu-Natal, Madagascar, Malawi, Mali, Mozambique, Namibia, Niger, Nigeria, Northern Provinces, Rwanda, Senegal, Sierra Leone, Sudan, Swaziland, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

    Synonyms

    Other Data

    Persicaria madagascariensis (Meisn.) S.Ortiz & Paiva appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Welwitsch [5362], Angola K000244081 syntype
    Mar 13, 1989 Hedberg, O. [2049], Uganda Persicaria attenuata subsp. africana K000244078 holotype
    Mar 1, 1989 South Africa Persicaria attenuata subsp. africana K000244087
    Mar 1, 1989 Drege [s.n.], South Africa Persicaria attenuata subsp. africana K000244088 syntype
    Mar 1, 1989 Harvy [s.n.], South Africa Persicaria attenuata subsp. africana K000244086 syntype
    Wallich, N. [Cat. no. 1709], India Polygonum tomentosum K001113943
    Wallich, N. [Cat. no. 1709], Myanmar Polygonum tomentosum K001113946
    Wallich, N. [Cat. no. 1709], Myanmar Polygonum tomentosum K001113947
    Wallich, N. [Cat. no. 1709], Myanmar Polygonum tomentosum K001113948
    De Silva, F. [Cat. no. 1709] Polygonum tomentosum K001113944
    s.coll. [Cat. no. 1709] Polygonum tomentosum K001113945
    s.coll. [Cat. no. 1709], India Polygonum tomentosum K001113949
    s.coll. [Cat. no. 1709], Bangladesh Polygonum tomentosum K001113950
    s.coll. [Cat. no. 1709], Bangladesh Polygonum tomentosum K001113951
    s.coll. [Cat. no. 1709] Polygonum tomentosum K001113952

    Bibliography

    First published in Bot. J. Linn. Soc. 131: 172 (1999)

    Accepted by

    • Retief, E. & Meyer, N.L. (2017). Plants of the Free State inventory and identification guide Strelitzia 38: 1-1236. National Botanical Institute, Pretoria.
    • 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.
    • Thiombiano, A., Schmidt, M., Dressler, S., Ouédraogo, A., Hahn, K. & Zizka, G. (2012). Catalogue des plantes vasculaires du Burkina Faso Boissiera 65: 1-391.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.

    Literature

    Flora Zambesiaca

    • Bot. J. Linn. Soc. 131: 172 (1999). TAB. 3, fig. C.

    Kew Backbone Distributions

    • Retief, E. & Meyer, N.L. (2017). Plants of the Free State inventory and identification guide Strelitzia 38: 1-1236. National Botanical Institute, Pretoria.
    • 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.
    • Thiombiano, A., Schmidt, M., Dressler, S., Ouédraogo, A., Hahn, K. & Zizka, G. (2012). Catalogue des plantes vasculaires du Burkina Faso Boissiera 65: 1-391.
    • Lejoy, J., Ndjele, M.-B. & Geerinck, D. (2010). Catalogue-flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo) Taxonomania 30: 1-307.
    • Lisowski, S. (2009). Flore (Angiospermes) de la République de Guinée Scripta Botanica Belgica 41: 1-517.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Pope, G.V., Polhill, R.M. & Martins, E.S. (eds.) (2006). Flora Zambesiaca 9(3): 1-277. Royal Botanic Gardens, Kew.
    • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
    • Aké Assi, L. (2002). Flore de la Côte-d'Ivoire: catalogue systématique, biogéographie et écologie. II Boissiera 58: 1-401.
    • Edwards, S., Tadesse, M., Demissew, S. & Hedberg, I. (eds.) (2000). Flora of Ethiopia and Eritrea 2(1): 1-532. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
    • Troupin, G. (ed.) (1978). Flora du Rwanda 1: 1-413. Musee Royal de l'Afrique Centrale.
    • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(1): 1-85. ORSTROM, Bangui.
    • Peyre de Fabregues, B. & Lebrun, J.-P. (1976). Catalogue des Plantes Vascularies du Niger: 1-433. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.
    • Lebrun, J.-P., Audru, J., Gaston, A. & Mosnier, M. (1972). Catalogue des Plantes Vasculaires du Tchad Méridional: 1-289. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.
    • Lewalle, J. (1970). Liste floristique et répartition altitudinale de la flore du Burundi occidental: 1-84. Université officielle de Bujumbura.
    • Graham, R.A. (1958). Flora of Tropical East Africa, Polygonaceae: 1-40.
    • Hutchinson, J., Dalziel, J.M. & Keay, R.W.J. (1954-1958). Flora of West Tropical Africa, ed. 2, 1: 1-828.

    Sources

    Art and Illustrations in Digifolia
    Digital Image © Board of Trustees, RBG Kew

    Flora Zambesiaca
    Flora Zambesiaca
    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