Family:
Polygonaceae Juss.
Genus:
Oxygonum Burch. ex Campd.

Oxygonum leptopus Mildbr.

This species is accepted, and its native range is Tanzania.

[FTEA]

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

Morphology General Habit
A straggling perennial with a thick, perennial, gnarled, woody rootstock.
Morphology Stem
Annual stems reddish, densely pubescent, becoming ± glabrous above.
Morphology Leaves Ocrea
Ocreae ± 5 mm. long, pubescent, membranous, truncate with a terminal fringe of setae 5–7 mm. long.
Morphology Leaves
Leaves shortly but clearly petiolate, ovate to ovate-deltoid, marginally entire, 3.2–3.5 × 1.5–2.0 cm., apically subacute with the midrib excurrent as a mucro, basally rounded or ± so to the petiole, densely pustular, pubescent only on the midribs of both faces.
Morphology Leaves Petiole
Petioles densely pubescent, 2 mm. long.
Morphology Reproductive morphology Inflorescences
Inflorescence very long, slender (50–) 70–125 cm. long, arcuate.
Morphology Reproductive morphology Inflorescences Bracts
Bracts 3–4 mm. long, ± glabrous, up to 2.8 (–3) cm. apart, sometimes in semi-adjacent pairs, fringed with setae up to 2 mm. long.
Morphology Reproductive morphology Flowers
Pedicels 5–9 to each bract; those of hermaphrodite flowers very long, 1.5–2.5 (–3) cm., and usually only 1–2 per bract; of male flowers 3–5 mm. long, filiform. Tepals ovate-oblong or oblong, 2.75 mm. long (2.53 mm.; styles clearly exceeding the stamens, fide Mildbr.). Short styles 1 mm. long, connate 0.4 mm.
Morphology Reproductive morphology Fruits
(Immature fruit fusiform-trigonous, villous, with three small erect prickles, fide Mildbr.)
Habitat
Dry, sandy woodland, frequent in low grass; about 400 m.
Distribution
unknown apart from the type locality T6

Native to:

Tanzania

Oxygonum leptopus Mildbr. appears in other Kew resources:

First published in Notizbl. Bot. Gart. Berlin-Dahlem 11: 810 (1933)

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

  • Mildbr. in Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahelm 11: 810 (1933).

  • Flora of Tropical East Africa

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