Oxygonum carnosum R.A.Graham

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

[FZ]

Flora Zambesiaca. Vol. 9, Part 3. Polygonaceae-Myriaceae. Pope GV, Polhill RM, Martins ES. 2006.

Type
Type:Zambia, Kawambwa (south of Lake Mweru), Fanshawe 2982 (K, holotype; BR; NDO).
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 3–4 mm long, filiform, flattened toward the base; anthers red-brown, 1–1.5 × 0.5 mm, oblong
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 2–3 mm long; styles of long-styled flowers 6 mm long; styles of short-styled flowers 3 mm long
Morphology Reproductive morphology Fruits
Nut 3–4 mm long, ellipsoid trigonous, irregularly striate, pubescent. Nut 3–4 mm long, ellipsoid trigonous, irregularly striate, pubescent.
Ecology
In dry dambo margins, in wooded grassland, in grey sandy soil with red grit; c. 1300 m.
Distribution
ZAM N Known only from the Kawambwa District of northern Zambia. Zambia
Morphology General Habit
A decumbent fleshy suffrutex; rootstock tortuous, woody. A decumbent fleshy suffrutex; rootstock tortuous, woody
Morphology Stem
Stems annual, longitudinally striate, ± glabrescent. Stems annual, longitudinally striate, ± glabrescent
Morphology Leaves
Leaves yellowish-green, ± fleshy, subsessile, (4)5–8 × 0.7–3.2 cm, elliptic to elliptic-obovate, acute or obtuse and mucronate at the apex, attenuate to the base, with the midrib prominent beneath, not or slightly sinuous on the margin. Leaves yellowish-green, ± fleshy, subsessile, (4)5–8 × 0.7–3.2 cm, elliptic to elliptic.obovate, acute or obtuse and mucronate at the apex, attenuate to the base, with the midrib prominent beneath, not or slightly sinuous on the margin
Morphology Leaves Ocrea
Ocrea 1.5–1.9 × 0.7–1.3 cm, with a foliaceous spreading or reflexed limb, rounded and fringed at the apex with many red-brown setae up to 3.5 mm long, otherwise ± glabrous. Ocrea 1.5–1.9 × 0.7–1.3 cm, with a foliaceous spreading or reflexed limb, rounded and fringed at the apex with many red-brown setae up to 3.5 mm long, otherwise ± glabrous
Morphology Reproductive morphology Flowers
Flowers pedicellate, 1–3 in the axils of each bract, arranged in lateral spiciform racemes 7–9 cm long; bracts 7–9 mm long, obliquely truncate, produced dorsally into an acute or acuminate setose apex and with a terminal fringe of short hairs, or sometimes with short setae; bracteoles 2, hyaline, c. 4.5 mm long; pedicels 4–6 mm long, filiform, glabrous. Hermaphrodite flowers heterostylous, 5-merous; perianth creamy-white, tube 1.5–2 mm long and pubescent outside, lobes 5–6 × 1.5–2 mm and oblong-lanceolate, obtuse or subacute at the apex Male flowers not seen Flowers pedicellate, 1–3 in the axils of each bract, arranged in lateral spiciform racemes 7–9 cm long; bracts 7–9 mm long, obliquely truncate, produced dorsally into an acute or acuminate setose apex and with a terminal fringe of short hairs, or sometimes with short setae; bracteoles 2, hyaline, c. 4.5 mm long; pedicels 4–6 mm long, filiform, glabrous Hermaphrodite flowers heterostylous, 5-merous; perianth creamy-white, tube 1.5–2 mm long and pubescent outside, lobes 5–6 × 1.5–2 mm and oblong-lanceolate, obtuse or subacute at the apex. Male flowers not seen.
sex Male
Male flowers not seen.
sex Hermaphrodite
Hermaphrodite flowers heterostylous, 5-merous; perianth creamy-white, tube 1.5–2 mm long and pubescent outside, lobes 5–6 × 1.5–2 mm and oblong-lanceolate, obtuse or subacute at the apex. Filaments 3–4 mm long, filiform, flattened toward the base; anthers red-brown, 1–1.5 × 0.5 mm, oblong. Ovary 2–3 mm long; styles of long-styled flowers 6 mm long; styles of short-styled flowers 3 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens
Filaments 3–4 mm long, filiform, flattened toward the base; anthers red-brown, 1–1.5 × 0.5 mm, oblong.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 2–3 mm long; styles of long-styled flowers 6 mm long; styles of short-styled flowers 3 mm long.

Native to:

Zambia

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

Date Reference Identified As Barcode Type Status
Apr 12, 1957 Fanshawe, D. B. [F. 2982], Zambia K000244060 holotype
Apr 12, 1957 Fanshawe, D. B. [F. 2982], Zambia K000244061 holotype

First published in Kew Bull. 12: 236 (1957)

Accepted by

  • Pope, G.V., Polhill, R.M. & Martins, E.S. (eds.) (2006). Flora Zambesiaca 9(3): 1-277. Royal Botanic Gardens, Kew.

Literature

Flora Zambesiaca

  • Kew Bull. 12: 236 (1957).

Kew Backbone Distributions

  • Pope, G.V., Polhill, R.M. & Martins, E.S. (eds.) (2006). Flora Zambesiaca 9(3): 1-277. Royal Botanic Gardens, Kew.

  • Flora Zambesiaca

    Flora Zambesiaca
    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