Oxygonum magdalenae Dammer ex Peter

This species is accepted, and its native range is SW. & S. Tanzania.

[FTEA]

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

Morphology General Habit
A stout, erect herb up to 50 cm. tall.
Morphology Stem
Stems brownish red, thickly hairy below with short brown hairs, becoming less so above, or glabrous throughout.
Morphology Leaves Ocrea
Ocreae 7–8 mm. long, hairy as the stem, truncate, terminally fringed with setae 5–6 mm. long, the leaf inserted a little above the middle.
Morphology Leaves
Leaves sessile to shortly petiolate, elliptic, 35–45 × 9–13 mm., acute with a terminal mucro 0.5 mm. long, ± evenly narrowed to each end or more shortly so to the base, shortly and varyingly hairy on both surfaces but especially thickly on the midrib and veins below and on the margin, sometimes glabrous throughout.
Morphology Leaves Petiole
Petioles 0–6 mm. long.
Morphology Reproductive morphology Inflorescences
Inflorescence stout, up to and mainly 2 mm. thick (sicc.).
Morphology Reproductive morphology Inflorescences Bracts
Bracts 4–6 mm. long, up to 7 cm. apart, truncate but dorsally produced into a narrow-lanceolate point 4 mm. long with 2 lateral setae on each side.
Morphology Reproductive morphology Flowers Pedicel
Pedicels 2–4 together, those of the fruit exceeding the bracts by 5 mm.
Morphology Reproductive morphology Flowers
Flowers showy, 7–9 (? more) mm. across. Short-styled flowers:tepals 3 mm. long, ovate to oblong; styles 2 (–1.5) mm. long, connate for just under half their length (or free to the base), reddish. Long-styled flowers:tepals 4 mm., styles 4 mm. long, connate for 1 mm.
Short-styled
Short-styled flowers:tepals 3 mm. long, ovate to oblong; styles 2 (–1.5) mm. long, connate for just under half their length (or free to the base), reddish.
Long-styled
Long-styled flowers:tepals 4 mm., styles 4 mm. long, connate for 1 mm.
Morphology Reproductive morphology Fruits
Fruit pubescent (glabrous fide Peter), fusiform, 9–10 m. long, with three prickles 3–4 mm. long spreading horizontally from the centre.
Habitat
Brachystegia -woodland and probably upland grassland; 1000–1600 m.
Distribution
not known elsewhere T7 T8

Native to:

Tanzania

Oxygonum magdalenae Dammer ex Peter appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Milne-Redhead, E. [8497a], Tanzania 24179.000
Bidgood, S. [5362], Tanzania K000190592

First published in Repert. Spec. Nov. Regni Veg. Beih. 40(2): 186 (1932)

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

  • Peter in Flora von Deutsch-Ostafrika 2: 186 (1932).

  • 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