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  1. Family: Polygonaceae Juss.
    1. Genus: Persicaria Mill.
      1. Persicaria setosula (A.Rich.) K.L.Wilson

        This species is accepted, and its native range is Tropical Africa to SW. Syria.

    [FZ]

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

    Type
    Type from Ethiopia.
    Habit
    An erect or decumbent perennial herb An erect or decumbent perennial herb.
    Stem
    Stem up to 1 m or more long, rooting at the lower nodes, glabrous or nearly so Stem up to 1 m or more long, rooting at the lower nodes, glabrous or nearly so.
    Leaves
    Leaf lamina 6–18(25) × 1.5–2.5(5) cm, ovate-lanceolate to elliptic.lanceolate, usually broadest below the middle, sometimes with a black inverted V-shaped spot in the middle, acute at the apex, narrowing at the base into a short petiole, appressed pubescent on both surfaces, setose on the margins and midrib above, more thickly on the midrib and lateral nerves beneath, sometimes almost glabrous; petiole up to 1 cm long Leaf lamina 6–18(25) × 1.5–2.5(5) cm, ovate-lanceolate to elliptic-lanceolate, usually broadest below the middle, sometimes with a black inverted V-shaped spot in the middle, acute at the apex, narrowing at the base into a short petiole, appressed pubescent on both surfaces, setose on the margins and midrib above, more thickly on the midrib and lateral nerves beneath, sometimes almost glabrous; petiole up to 1 cm long.
    Ocrea
    Ocrea 1–3 cm long, membranous, thickly covered with closely ascending bristly hairs, apex truncate and fringed with cilia up to (0.3)0.5–0.8(1.1) cm long Ocrea 1–3 cm long, membranous, thickly covered with closely ascending bristly hairs, apex truncate and fringed with cilia up to (0.3)0.5–0.8(1.1) cm long.
    Flowers
    Flowers pedicellate, in fascicles of 1–3; fascicles surrounded by ciliate bracts and borne in ± dense, simple or branched, pedunculate spiciform racemes 2.4–6 cm long; peduncles up to 5 cm long, glabrous; bracts 1–2(5) mm long, with a terminal fringe of short bristles, glabrous or with a few orange glands Flowers pedicellate, in fascicles of 1–3; fascicles surrounded by ciliate bracts and borne in ± dense, simple or branched, pedunculate spiciform racemes 2.4–6 cm long; peduncles up to 5 cm long, glabrous; bracts 1–2(5) mm long, with a terminal fringe of short bristles, glabrous or with a few orange glands.
    Ovary
    Ovary 0.8–1.5 mm long, globose; styles 2, 1.75–2 mm long, united below the middle
    Ecology
    Among swamp grasses, sometimes growing in water, on alluvial clay soils or loams of dry water courses; 840–1650 m.
    Note
    Differences from Persicaria madagascariensis are not always very clear, and some specimens like Swynnerton 1512 or R.E. Fries 169 (cited above) seem somewhat intermediate between the two.
    Distribution
    Mozambique Malawi Zimbabwe ZAM N, ZAM W, ZAM S, ZIM E, MAL N, MAL C, MAL S, MOZ N, MOZ M Also from Sierra Leone to Ethiopia, south through Uganda, Kenya, Tanzania, Dem. Rep. Congo and Angola to South Africa. Zambia
    Perianth
    Perianth white, creamy-white, deep pink to bright rose-pink, 2.75–3 mm long, 5-lobed; lobes 2.5 mm long, ovate-oblong. Perianth white, creamy-white, deep pink to bright rose-pink, 2.75–3 mm long, 5-lobed; lobes 2.5 mm long, ovate-oblong
    Stamens
    Stamens 7; filaments 1.5–2 mm long, filiform; anthers 0.25 mm in diameter, globose. Stamens 7; filaments 1.5–2 mm long, filiform; anthers 0.25 mm in diameter, globose
    Pistil
    Ovary 0.8–1.5 mm long, globose; styles 2, 1.75–2 mm long, united below the middle.
    Fruits
    Nut black, smooth and shiny, 2–3(3.25) mm in diameter, biconvex-lenticular or obscurely trigonous, more rarely acutely trigonous. Nut black, smooth and shiny, 2–3(3.25) mm in diameter, biconvex-lenticular or obscurely trigonous, more rarely acutely trigonous.
    [FTEA]

    Polygonaceae, R. A. Graham. Flora of Tropical East Africa. 1958

    Habit
    A variable, ± robust perennial.
    Stem
    Stems basally decumbent, rooting at the nodes, often reddish, glabrous or nearly so, up to 1 m. or more tall.
    Ocrea
    Ocreae 1–3 cm. long, membranous, thinly to (more commonly) thickly covered with closely ascending bristly hairs 1–2.5 mm. long, terminally truncate and (at least when young) with a terminal fringe of bristles (0.3) 0.5–1.1 cm. long.
    Leaves
    Leaves shortly petiolate, variable in size and shape, commonly 11–12 × 2–2.5 cm., ovate-acuminate, ovate-lanceolate, or elliptic-lanceolate, broadest usually below the middle, sometimes (as in holotype) with a black blotch in the form of a reversed V in the centre, apically acute, basally narrowed to the petiole, usually setose on the margin and midrib of the upper surface, more thickly so on the midrib and lateral nerves below and thinly so on the lamina, but varying to almost glabrous; lateral nerves of the undersurface often alternately prominent and obscure, the prominent ones 0.4–1.0 cm. apart.
    Petiole
    Petioles up to 1 cm. long, commonly less.
    Inflorescences
    Inflorescence simple or branched, racemose, moderately stout, the peduncles 2–3 together and arising often at an acute angle, 2.4–6.0 cm. long, ± densely flowered.
    Peduncles
    Peduncles glabrous, more rarely setose.
    Bracts
    Bracts usually with a terminal fringe of short bristles 1–2 (–5) mm. long, otherwise glabrous, sometimes dotted with a few orange glands.
    Pedicel
    Pedicels short, rarely exceeding the bracts by more than 1.25 mm.
    Perianth
    Perianth white to deep pink, sparsely or not glandular, 2.75–3.0 mm. long. Tepals 5, ovate-oblong, 2–2.5 mm. long, rarely more.
    Style
    Styles 2, 1.75–2 mm. long, united for 0.5–0.75 mm.
    Fruits
    Nut 2–3 (–3.25) mm. long, smooth, shining, evenly biconvex-lenticular or with one side swollen to become obscurely trigonous, rarely ± acutely trigonous.
    Figures
    Fig. 4/1 and 2, p. 23.
    Habitat
    Damp places, sometimes growing in water; especially in upland areas from 1050-2670 m.
    Distribution
    range uncertain outside tropical and subtropical Africa K3 K4 K5 T2 T3 T4 T6 T7 T8 U1 U2 U3 U4
    [FWTA]

    Polygonaceae, Hutchinson and Dalziel. Flora of West Tropical Africa 1:1. 1954

    Habit
    Perennial herb, decumbent below, to 3 ft. high.

    Images

    Distribution

    Native to:

    Angola, Benin, Burundi, Cameroon, Chad, Congo, Eritrea, Ethiopia, Gabon, Ghana, Gulf of Guinea Is., Kenya, Lebanon-Syria, Malawi, Mozambique, Nigeria, Palestine, Rwanda, Sierra Leone, Sudan, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

    Synonyms

    Other Data

    Persicaria setosula (A.Rich.) K.L.Wilson appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nov 1, 2010 Darbyshire, I. [316], Cameroon K000199981
    Jun 1, 2008 Katende [1193], Uganda K000614852
    Jun 1, 2008 Tiyoy, L. [1392], Uganda K000545489
    Whyte [s.n.], Malawi K000244082 holotype
    Nov 1, 2003 Cheek, M. [9011], Cameroon Polygonum setosulum K000198120
    Nov 1, 2003 Gosline, G. [195], Cameroon Polygonum setosulum K000198119

    Bibliography

    First published in Kew Bull. 45: 632 (1990)

    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.
    • 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.
    • 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.

    Literature

    Flora Zambesiaca

    • Kew Bull. 45: 632 (1990).

    Kew Backbone Distributions

    • Danin, A. & Fragman- Sapir, O. (2019). Flora of Israel Online http://flora.org.il/en/plants/.
    • 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.
    • Fischer, E., Rembold, K., Althof, A. & Obholzer, J. (2010). Annotated checklist of the vascular plants of Kakamega forest, Western province, Kenya Journal of East African Natural History 99: 129-226.
    • 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.
    • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
    • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
    • Troupin, G. (ed.) (1978). Flora du Rwanda 1: 1-413. Musee Royal de l'Afrique Centrale.
    • Quézel, P. (1958). Mission Botanique au Tibesti: 1-357. Université d'Alger.
    • Hutchinson, J., Dalziel, J.M. & Keay, R.W.J. (1954-1958). Flora of West Tropical Africa, ed. 2, 1: 1-828.
    • Robyns, W. & al. (eds.) (1948-1963). Flore du Congo Belge et du Ruanda-Urundi 1-10.

    Sources

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

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    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