- Family:
- Polygonaceae Juss.
- Genus:
- Oxygonum Burch. ex Campd.
Oxygonum carnosum R.A.Graham
[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 | Has image? |
---|---|---|---|---|---|
Apr 12, 1957 | Fanshawe, D. B. [F. 2982], Zambia | K000244060 | holotype | No | |
Apr 12, 1957 | Fanshawe, D. B. [F. 2982], Zambia | K000244061 | holotype | No |
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.
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Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0
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Herbarium Catalogue Specimens
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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
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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