Oxygonum sagittatum R.A.Graham

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

[FTEA]

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

Morphology General Habit
A rather hoary, decumbent herb, probably perennial.
Morphology Stem
Stems greenish-brown, densely pubescent with white hairs, glabrescent with age.
Morphology Leaves Ocrea
Ocreae often crowded and obscuring the stem, membranous, densely pubescent, 0.7–1.2 cm. long, the leaf inserted a little above the middle, terminally truncate and fringed with pubescent, red setae 7–10 mm. long.
Morphology Leaves
Leaves petiolate, narrow-lanceolate, up to 2.7 × 0.6 cm., the margin entire or with 1 small sagittate lobe half way along, densely and closely hairy on both sides, very acute with an extended mucro, basally sagittate with lobes up to 6 mm. long, and below the lobes often shortly cuneate to the petiole, the margins revolute, and the midrib very prominent below.
Morphology Leaves Petiole
Petiole 0.6–1.2 cm. long.
Morphology Reproductive morphology Inflorescences
Inflorescence ± stout, elongated, often arcuate or gently so, 6–18 cm. long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts 2–4 mm. long, with a dorsal seta 4 mm. and lateral setae 1–2 mm. long.
Morphology Reproductive morphology Flowers Pedicel
Pedicels just exceeding the bracts.
Morphology Reproductive morphology Flowers
Flowers 1–3 together, white flushed with pink, ± 5 mm. long; tepals oblong; long styles 4 mm. long, connate for 1.5 mm. (short styles not seen); stigmas yellow.
Morphology Reproductive morphology Fruits
Fruit (immature) 6 mm. long, fusiform, densely pubescent, with three prickles 1 mm. long, spreading from the centre.
Figures
Fig. 6/8, p. 35.
Habitat
In Acacia-Commiphora bushland; 1100 m.
Distribution
K1 not known beyond this single recordit should be sought for in the Kenya-Ethiopia boundary area

Native to:

Kenya

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

Date Reference Identified As Barcode Type Status Has image?
Apr 6, 1952 Gillett, J. B. [12694], Kenya K000244051 holotype No
Apr 4, 1952 Gillett, J. B. [12694], Kenya K000244050 holotype No
Kuchar, P. [15291], Kenya K000332785 No

First published in Kew Bull. 12: 158 (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., Kew Bulletin 1957: 158 (1957).

  • Flora of Tropical East Africa

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

  • Herbarium Catalogue Specimens

  • 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