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  1. Family: Fabaceae Lindl.
    1. Genus: Vigna Savi
      1. Vigna oblongifolia A.Rich.

        This species is accepted, and its native range is Tropical & S. Africa, Madagascar.

    [FZ]

    Leguminosae, B. Mackinder, R. Pasquet, R. Polhill and B. Verdcourt. Flora Zambesiaca 3:5. 2001

    Habit
    Annual, prostrate or climbing herb, rarely suberect, usually 0.9–4.8 m long.
    Stem
    Stem slender, covered with appressed spreading or reflexed ± bristly hairs.
    Leaflets
    Leaflets 3, 3–12 × 0.2–2.5 cm, rounded to acute and mucronulate at the apex, cuneate or rounded at the base, rather sparsely appressed pubescent on both surfaces; petiole 2–6.5 cm long; rhachis 0.3–1.5 cm long; stipules 2–4 × 0.8–1.5 mm, ovate-lanceolate, cordate and slightly prolonged below the point of insertion, multinerved.
    Inflorescences
    Peduncle 7–35 cm × 0.5–2 mm, often very hairy at the apex and pilose below; rhachis 0.5–2.5 cm long, 2–10-noded, internodes 2–4 mm long, rarely up to 10 mm long.
    Flowers
    Flower yellow, 6–12 mm long; pedicel 2–5 mm long, expanding as the pod matures; bracteoles 1–1.5 mm long, linear-lanceolate, 1-nerved.
    Calyx
    Calyx pubescent; tube 1–2.5 mm long; lobes 1–2.5 mm long, the upper pair joined to form an apiculate lip, lower lobe twice as long as the others.
    Corolla
    Standard with two central appendages; keel with a short beak, slightly twisted towards the right.
    Ovary
    Ovary 6–10-ovuled.
    Fruits
    Pod 2.5–7 cm × 2.5–4.5 mm, slightly compressed, curved or almost straight, slightly constricted between the seeds, covered with appressed, usually mixed pale ferruginous and white bristly hairs, with a short curved beak.
    Seeds
    Seed 2–4.5 × 2–3.2 × 1–2.2 mm; hilum excentric; aril excentric, fork-shaped.
    [ILDIS]

    International Legume Database and Information Service

    Conservation
    Not Threatened
    Ecology
    Africa: Sudanian grasslands, Somalia-Masai grasslands, Sudanian bushland and thicket, Somalia-Masai bushland and thicket, Somalia-Masai woodland, Zambezian grassland, Zambezian bushland and thicket, Zambezian woodland, Sudanian woodland
    Habit
    Annual, Climbing/Not climbing, Herb
    [FTEA]

    Leguminosae, J. B. Gillett, R. M. Polhill & B. Verdcourt. Flora of Tropical East Africa. 1971

    Habit
    Annual, more rarely perennial, prostrate or climbing herb, rarely suberect, usually 0·9–4·8 m. long from a somewhat woody rootstock.
    Stem
    Stems slender, covered with adpressed spreading or reflexed ± bristly hairs.
    Leaves
    Leaflets 3, ovate to linear-lanceolate, 1·5–12 cm. long, 0·2–2·5(–3·5) cm. wide, rounded to acute and mucronulate at the apex, cuneate or rounded at the base, rather sparsely adpressed pubescent on both surfaces; petiole 1·5–6·5 cm. long; rhachis 0·5–1·5 cm. long; petiolules 1–3 mm. long; stipules ovate-lanceolate, 2–3 mm. long, cordate and slightly prolonged below the point of insertion.
    Inflorescences
    Inflorescence dense, 2–10-flowered; rhachis 0·5–2·5 cm. long, somewhat zigzag and with tumid glands at the pedicel-bases; peduncle 2–35 cm. long, often very hairy at the apex and pilose below; pedicels 2–5 mm. long; bracts deciduous, ovate-lanceolate, 1–1·5(–3) mm. long; bracteoles subpersistent, lanceolate, 1·5–2·5(–5) mm. long.
    Calyx
    Calyx pubescent; tube 1·5–2 mm. long; lobes triangular-lanceolate, 1–4 mm. long, the lowest narrow, the upper pair joined to form an apiculate lip.
    Corolla
    Standard yellow or greenish-yellow, green or sometimes purple-flushed outside, obovate, 6–10 (–11) mm. long and wide, emarginate or truncate, glabrous; wings pale or bright yellow; keel pale yellow or greenish-white, green at the tip with the beak short, not incurved.
    Fruits
    Pods ± deflexed, linear-cylindrical, compressed, 3–9-seeded, 2·3–6·5 cm. long, 3–5 mm. wide, curved or almost straight, slightly constricted between the seeds, covered with adpressed, usually mixed pale ferruginous and white bristly hairs.
    Seeds
    Seeds greenish, brown or dark reddish-brown often mottled with black, irregularly oblong, ovoid or subglobose, sometimes angled on margin opposite the hilum, longest dimension 2–4·5 mm., shorter dimension 2–3·2 mm., 1·5–2·2 mm. thick; aril eccentric, shaped like a fork with a short central prong.

    Images

    Distribution

    Native to:

    Angola, Benin, Botswana, Burundi, Cameroon, Caprivi Strip, Central African Repu, Chad, Eritrea, Ethiopia, Free State, Gabon, Ghana, Kenya, KwaZulu-Natal, Madagascar, Malawi, Namibia, Nigeria, Northern Provinces, Rwanda, Sudan, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

    Accepted Infraspecifics

    Other Data

    Vigna oblongifolia A.Rich. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Ethiopia K000263422 Unknown type material
    Petit [s.n.], Ethiopia K000263421 Unknown type material

    Bibliography

    First published in Tent. Fl. Abyss. 1: 220 (1847)

    Accepted by

    • van der Maesen, L.J.G. & Sosef, M.S.M. (2016). Flore du Gabon 49: 1-407. Muséum National d'Histoire Naturelle, Paris.
    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Brundu, G. & Camarda, I. (2013). The Flora of Chad: a checklist and brief analysis PhytoKeys 23: 1-18.
    • Lejoy, J., Ndjele, M.-B. & Geerinck, D. (2010). Catalogue-flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo) Taxonomania 30: 1-307.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
    • Mackinder, B., Pasquet, R., Polhill, R. & Verdcourt, B. (2001). Flora Zambesiaca 3(5): 1-261. Royal Botanic Gardens, Kew.
    • Hedberg, I. & Edwards, S. (eds.) (1989 publ. 1990). Flora of Ethiopia and Eritrea 3: 1-659. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.
    • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(1): 1-85. ORSTROM, Bangui.

    Literature

    Kew Backbone Distributions

    • van der Maesen, L.J.G. & Sosef, M.S.M. (2016). Flore du Gabon 49: 1-407. Muséum National d'Histoire Naturelle, Paris.
    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Brundu, G. & Camarda, I. (2013). The Flora of Chad: a checklist and brief analysis PhytoKeys 23: 1-18.
    • Lejoy, J., Ndjele, M.-B. & Geerinck, D. (2010). Catalogue-flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo) Taxonomania 30: 1-307.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
    • Mackinder, B., Pasquet, R., Polhill, R. & Verdcourt, B. (2001). Flora Zambesiaca 3(5): 1-261. Royal Botanic Gardens, Kew.
    • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.
    • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(1): 1-85. ORSTROM, Bangui.

    Flora of Tropical East Africa

    • Verdc. in Kew Bulletin 24: 527 (1970).
    • Wilczek in Flore du Congo Belge et du Ruanda-Urundi, 6: 360 (1954).
    • Bak. f., Leguminosae of Tropical Africa: 410 (1929).
    • Bak. in Flora of Tropical Africa 2: 196 (1871).
    • A. Rich., Tent. Fl. Abyss. 1: 220 (1847).

    International Legume Database and Information Service

    • Du Puy, D. J. et al. (2002). The Leguminosae of Madagascar. RBG Kew.
    • Gillett, J. B. et al. (1971). Papilionoideae. In: Fl. Trop. E. Africa, Milne-Redhead & Polhill

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    International Legume Database and Information Service
    International Legume Database and Information Service (ILDIS) V10.39 Nov 2011
    http://creativecommons.org/licenses/by/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. 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 2020. 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