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

[FTEA]

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

Habit
Perennial herb from a thick, often extensively branched, frequently horizontal woody rootstock; nearly always flowering before the leaves appear.
Stem
Stems at first erect, later prostrate or, less often, climbing, 6 cm. to 1·8 m. tall or long, glabrous or puberulous on the leafy shoots, densely pubescent or setulose when young but later glabrescent.
Leaves
Leaflets 3, ovate-oblong, lanceolate or subrhomboid-oblong, the laterals slightly oblique, 3·5–9·5 cm. long, 0·4–6·5 cm. wide, usually the terminal subhastate or almost 3-lobed at the base, obtuse at the apex, cuneate, rounded or minutely subcordate at the base, mostly rather leathery, glabrescent or rather roughly pilose on both surfaces; venation raised and closely reticulate on both surfaces; petioles 3–13 cm. long; rhachis 1–2·6 cm. long; petiolules 2–5 mm. long; stipules rather distinctly appendaged when well developed, ovate to lanceolate, 0·4–1 cm. long, 1–3 mm. wide, but usually slightly bilobed or almost truncate.
Inflorescences
Inflorescences axillary, at first appearing caespitose from short undeveloped stems, 2–5-flowered; rhachis 2–3 cm. long; peduncle erect, 4–20 cm. long, shortly rather roughly pubescent; pedicels 1–3 mm. long; bracts at base of peduncles in leafless state are short stipules; true bracts oblong, 1–3 mm. long, 1–1·5 mm. wide, ribbed, deciduous; bracteoles oblong-lanceolate, 1–2·5 mm. long, 0·5–0·7 mm. wide, ribbed, soon deciduous.
Calyx
Calyx sparsely to moderately pubescent; tube 4 mm. long; lobes narrowly triangular, 2–5 mm. long, subequal, the upper pair joined for half their length or almost to quite free.
Corolla
Standard often greenish or yellow-brown outside, marked with purple inside, pink to purple or mauve with a patch of yellow at the base, rounded or transversely elliptic, 1·5–2·3 cm. long, 1·8–3 cm. wide, emarginate, glabrous; wings and keel usually dull mauve, the latter sometimes white, twisted as well as incurved and bearing an upwardly directed pocket on left-hand petal.
Fruits
Pods erect, linear-cylindrical, usually compressed, 7–11 cm. long, 4–7 mm. wide, sparsely puberulous and gland-dotted, 12–14-seeded.
Seeds
Seeds yellow to dark purple, ellipsoid or oblong-reniform, often keeled, longest dimension 5·5–8 mm., shorter dimension 3–4 mm., 2–3 mm. thick; hilum central, 1·5–3 mm. long; rim-aril slightly developed, blackish-green.
Habitat
Seasonally burnt upland grassland; ± 2000 m.
Distribution
T7

Native to:

Burundi, Malawi, Tanzania, Zaïre, Zimbabwe

Vigna nuda N.E.Br. appears in other Kew resources:

First published in Bull. Misc. Inform. Kew 1901: 121 (1901)

Accepted by

  • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.

Flora of Tropical East Africa

  • Wilczek in Flore du Congo Belge et du Ruanda-Urundi, 6:372 (1954).
  • Milne-Redh. in Hook., Ic. P1., t. 3213 (1933).
  • Bak. f., Leguminosae of Tropical Africa: 415 (1929).
  • N.E. Br. in Bulletin of Miscellaneous Information, Kew 1901: 121 (1901).

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

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. 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 2021. 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