Merremia pterygocaulos (Steud. ex Choisy) Hallier f.

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Photo: Bart Wursten
Victoria Falls National Park.

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Synonyms:	Convolvulus pterygocaulos Steud. Ipomoea petersiana Klotzsch Ipomoea pterygocaulos Choisy
Common names:
Frequency:
Status:	Native
Description:	Perennial often somewhat shrubby climber. Stems twining, 4-winged or 4-angled on smaller branches, almost hairless. Leaves up to 8 × 10 cm, cordate at the base, palmately 3-7-lobed to the middle of the lamina or more; lobes elliptic, ovate or oblong, more or less mucronate at the apices; petiole up to 8.5 cm long, more or less widely winged. Flowers in few-flowered inflorescences or rarely solitary; peduncle up to 12 cm long, winged; pedicels up to 3 cm long. Sepals ovate-oblong, up to 10 mm long, obtuse at the apex, becoming broadly ovate to circular and spreading in fruit. Corolla broadly funnel-shaped, c. 3.5 cm long, pale yellow, cream or white with a red or purple throat. Capsule ovoid-conical, flattened-depressed at the apex, crowned with the persistent style-base, hairless, brown.
Notes:
Derivation of specific name:
Habitat:	Forest, mixed woodland, grassland and along roadsides, often on sandy and alluvial soils.
Altitude range:	430 - 1830 m
Flowering time:
Worldwide distribution:	Widespread in tropical Africa, South Africa and Madagascar.
Malawi distribution:	N,S
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Literature:	Da Silva, M.C., Izidine, S. & Amude, A.B. (2004). A preliminary checklist of the vascular plants of Mozambique. Southern African Botanical Diversity Network Report No. 30 Sabonet, Pretoria Page 49. Gonçalves, M.L. (1987). Convolvulaceae Flora Zambesiaca 8(1) Pages 42 - 43. Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 37. Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 32. Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 51.

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Flora of Botswana: Merremia pterygocaulos
Flora of Burundi: Merremia pterygocaulos
Flora of Mozambique: Merremia pterygocaulos
Flora of Zambia: Merremia pterygocaulos
Flora of Zimbabwe: Merremia pterygocaulos

External websites:

African Plants: A Photo Guide (Senckenberg): Merremia pterygocaulos
BHL (Biodiversity Heritage Library): Merremia pterygocaulos
EOL (Encyclopedia of Life): Merremia pterygocaulos
GBIF (Global Biodiversity Information Facility): Merremia pterygocaulos
Google: Web - Images - Scholar
iNaturalist: Merremia pterygocaulos
IPNI (International Plant Names Index): Merremia pterygocaulos
JSTOR Plant Science: Merremia pterygocaulos
Mansfeld World Database of Agricultural and Horticultural Crops: Merremia pterygocaulos
Plants of the World Online: Merremia pterygocaulos
Tropicos: Merremia pterygocaulos
Wikipedia: Merremia pterygocaulos