1. Family: Polygonaceae Juss.
    1. Genus: Oxygonum Burch. ex Campd.
      1. Oxygonum maculatum R.A.Graham

        This species is accepted, and its native range is Central Kenya.

    [FTEA]

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

    Habit
    Probably perennial herb, much branched, generally whitish-green due to an abundance of white hairs.
    Stem
    Stem? decumbent, or creeping with erect annual branches, 30–45 cm. tall or more, woody and glabrous below, covered with spreading or reflexed white hairs above, apparently sometimes glabrous down one side.
    Ocrea
    Ocreae 6 mm. long, pilose, the leaf inserted at the middle or rather below, fringed with brown setae of similar length.
    Leaves
    Leaves shortly petiolate, lanceolate, 2–4 × 0.2–1 cm., the margin crisped and uneven, usually red, apically acute, long decurrent at the base, thickly pilose on both faces or glabrescent above, centrally marked on the upper surface with a lanceolate, purple or red blotch.
    Inflorescences
    Inflorescence elongated, erect or slightly arcuate, up to 20 cm. long (or more?).
    Bracts
    Bracts 4–5 mm. long, fringed with short setae.
    Pedicel
    Pedicels erect, 3–3.5 mm. long, filiform, glabrous or thinly pilose.
    Flowers
    Flowers 2–3 together, pale pink, clearly heterostylous. Tepals punctate, 4 mm. long, linear-lanceolate; styles 3 mm. long, connate for 1 mm. (long styles only seen).
    Fruits
    Fruit fusiform, 6–6.25 mm. long, green, pilose, with three slightly reflexing or spreading prickles 1 mm. long, rising from the centre or a little below.
    Figures
    Fig. 6/1, p. 35.
    Habitat
    Upland grassland; the plant is said to grow in masses and to flower profusely; 1710 m.
    Distribution
    K4 not elsewhere recorded

    Images

    Distribution

    Oxygonum maculatum R.A.Graham appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jun 4, 1958 Verdcourt, B. [2158], Kenya K000332781
    Apr 9, 1956 van Someren [1599], Kenya K000244067 holotype
    Gillett, J.B. [18391], Kenya K000332780
    Gillett, J.B. [16192], Kenya K000332782
    Bally, P.R.O. [11525], Kenya K000332783

    First published in Kew Bull. 12: 163 (1957)

    Accepted by

    • Graham, R.A. (1958). Flora of Tropical East Africa, Polygonaceae: 1-40.

    Literature

    Kew Backbone Distributions
    • Graham, R.A. (1958). Flora of Tropical East Africa, Polygonaceae: 1-40.
    Flora of Tropical East Africa
    • R. Grah. in Kew Bulletin 1957: 163 (1957).

    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 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