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

Morphology General Habit
Probably perennial herb, much branched, generally whitish-green due to an abundance of white hairs.
Morphology 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.
Morphology Leaves Ocrea
Ocreae 6 mm. long, pilose, the leaf inserted at the middle or rather below, fringed with brown setae of similar length.
Morphology 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.
Morphology Reproductive morphology Inflorescences
Inflorescence elongated, erect or slightly arcuate, up to 20 cm. long (or more?).
Morphology Reproductive morphology Inflorescences Bracts
Bracts 4–5 mm. long, fringed with short setae.
Morphology Reproductive morphology Flowers Pedicel
Pedicels erect, 3–3.5 mm. long, filiform, glabrous or thinly pilose.
Morphology Reproductive morphology 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).
Morphology Reproductive morphology 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

Native to:

Kenya

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

Date Reference Identified As Barcode Type Status Has image?
Jun 4, 1958 Verdcourt, B. [2158], Kenya K000332781 No
Apr 9, 1956 van Someren [1599], Kenya K000244067 holotype Yes
Bally, P.R.O. [11525], Kenya K000332783 No
Gillett, J.B. [18391], Kenya K000332780 No
Gillett, J.B. [16192], Kenya K000332782 No

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).

  • Flora of Tropical East Africa

    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    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 2022. 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 2022. 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