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  1. Family: Fabaceae Lindl.
    1. Genus: Vigna Savi
      1. Vigna richardsiae Verdc.

        This species is accepted, and its native range is Tanzania to Zambia.

    [FZ]

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

    Habit
    Twining or procumbent herb, c. 1.5 m long.
    Stem
    Stem slender, somewhat angular, practically glabrous.
    Leaflets
    Leaflets 3, 1.5–5 × 0.4–2.8 cm, narrowly lanceolate to ovate, acute to sharply acuminate, rounded at the base, glabrous or very sparsely pilose on both surfaces; petiole 1.5–5 cm long; rhachis 0.2–1 cm long; stipules reflexed, 2–4 × 1 mm, lanceolate, 3-nerved, not at all or scarcely prolonged below the base.
    Inflorescences
    Peduncle 1–6.5 cm × c. 0.5 mm, angled or almost winged, glabrous; rhachis 0.5–1 cm long, 1–7-noded, internodes 0.5–2 mm long.
    Flowers
    Flower yellow or mauve, 11–12 × 12–13 mm; pedicel 2–4 mm long, expanding as the pod matures; bracteoles just over 1 mm long, oblong-cucullate.
    Calyx
    Calyx glabrescent; tube c. 2.5 mm long; lobes 1–1.5 mm long, deltate or ovate, ciliate, subequal, the upper pair joined for half their length or united into an emarginate lip.
    Corolla
    Standard with two central (although parallel) appendages; keel slightly twisted towards the left, with a short beak, c. 1 mm long.
    Anthers
    Alternate anthers without a pair of glands at their base.
    Pollen
    Pollen exine not reticulate.
    Ovary
    Ovary 10–13-ovuled.
    Fruits
    Pod c. 4 cm × 3–4 mm, linear, glabrous, with a curved beak.
    Seeds
    Seed unknown.
    [ILDIS]

    International Legume Database and Information Service

    Conservation
    Not Threatened
    Habit
    Climbing/Not climbing, Herb
    [FTEA]

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

    Habit
    Twining or procumbent herb, ± 1·5 m. long.
    Stem
    Stems slender, somewhat angular, practically glabrous.
    Leaves
    Leaflets 3, narrowly lanceolate to ovate, 1·5–5 cm. long, 0·4–2·8 cm. wide, acute to sharply acuminate, rounded at the base, glabrous or very sparsely pilose on both surfaces; petiole 1·5–5 cm. long; rhachis 0·2–1 cm. long; petiolules 0·5–2 mm. long; stipules reflexed, lanceolate, 2–4 mm. long, 3-nerved, not or scarcely at all prolonged below the base.
    Inflorescences
    Inflorescences axillary; rhachis 0·5–1 cm. long, 1–7-nodose, the flowers in 3–5-flowered fascicles at the nodes; peduncle 1–6·5 cm. long, angled or almost winged; pedicels 2–4 mm. long; bracts ovate, 1 mm. long, deciduous; bracteoles oblong-cucullate, just over 1 mm. long, at length deciduous.
    Calyx
    Calyx-tube ± 2·5 mm. long, glabrescent; lobes deltoid or ovate, 1–1·5 mm. long, ciliate, the upper pair joined to form a rounded emarginate lip.
    Flowers
    Flowers yellow or mauve; standard oblate, 1 cm. long, 1·2–1·3 cm. wide, emarginate, glabrous; keel obtuse at apex, not incurved.
    Fruits
    Pod (known from single immature detached valve) linear, 4 cm. long, 4–4·5 mm. wide, glabrous or minutely puberulous, 6–10-seeded.
    Seeds
    Seeds not known.
    Habitat
    Not known; 1800 m.
    Distribution
    T7

    Images

    Distribution

    Native to:

    Tanzania, Zambia

    Other Data

    Vigna richardsiae Verdc. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    May 29, 2002 Radcliffe-Smith, A. [5667], Zambia K000071970
    May 29, 2002 Richards, H.M. [1370], Zambia K000071963 holotype
    May 29, 2002 Richards, H.M. [11287], Zambia K000071968
    May 29, 2002 Richards, H.M. [11287], Zambia K000071969
    May 29, 2002 McCallum-Webster, M. [885], Zambia K000071964
    May 29, 2002 McCallum-Webster, M. [885], Zambia K000071965
    May 29, 2002 McCallum-Webster, M. [885], Zambia K000071966
    May 29, 2002 McCallum-Webster, M. [885], Zambia K000071967

    Bibliography

    First published in Kew Bull. 24: 566 (1970)

    Accepted by

    • 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.

    Literature

    Kew Backbone Distributions

    • Mackinder, B., Pasquet, R., Polhill, R. & Verdcourt, B. (2001). Flora Zambesiaca 3(5): 1-261. Royal Botanic Gardens, Kew.

    Flora of Tropical East Africa

    • Verdc. in Kew Bulletin 24: 567 (1970).

    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