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This species is accepted, and its native range is Nigeria to Ethiopia and S. Tropical Africa, India to Thailand, Sri Lanka.
A specimen from Kew's Herbarium

[FSOM]

M. Thulin. Flora of Somalia, Vol. 1–4 [updated 2008] https://plants.jstor.org/collection/FLOS

Distribution
Widespread in tropical Africa, also in Saudi Arabia and southern Asia.
Morphology General Habit
Perennial trailing or twining herb, rarely slightly woody; stems subglabrous or sparsely pubescent with retrorse hairs
Morphology Leaves Leaflets
Leaflets linear-lanceolate to ovate, 1.2–9 x 0.3–6.5 cm, glabrous or sparsely pubescent, with ± obscure venation not forming a raised reticulum
Morphology Reproductive morphology Inflorescences
Inflorescences ± lax; rhachis 1.5–20 cm long, including up to 14 cm long peduncle
Morphology Reproductive morphology Flowers Calyx
Calyx glabrous or almost so; tube 2–3 mm long; lobes triangular, up to 3 mm long
Morphology Reproductive morphology Flowers Corolla
Standard pale purple inside, dull purple or greenish outside, 0.9–1.6 cm long; keel with the beak incurved through almost a circle
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary mostly 10–16-ovulate; style with rigid curved upper part laterally flattened and with unbranched hairs on the inner edge of the upper c. 3 mm
Morphology Reproductive morphology Fruits
Pods 50–140 x 3–4 mm, almost straight to upcurved at the apex, glabrous, 8–15-seeded
Morphology Reproductive morphology Seeds
Seeds with hilum c. 1–1.5 mm long.

[ILDIS]

International Legume Database and Information Service

Morphology General Habit
Annual/Perennial, Climbing, Herb

[FZ]

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

Morphology General Habit
Perennial trailing or twining herb, up to 3 m long, from a very thick rootstock up to 18 × 2–3 cm.
Morphology Stem
Stem slender, glabrous or sparsely pubescent.
Morphology Leaves Leaflets
Leaflets 3, 1.5–9 × 0.3–6.5 cm, linear-lanceolate to ovate-lanceolate, ovate, oblong or rhombic, acute, acuminate or rounded and mucronulate at the apex, cuneate to rounded at the base, glabrous or very sparsely hairy particularly along the margins; petiole 1–5 cm long; rhachis 0.3–1.2 cm long; stipules persistent, 2–3 × 1.5–2 mm, ovate-lanceolate or triangular, not produced below the base, multinerved.
Morphology Reproductive morphology Inflorescences
Peduncle 3.5–14 cm × 0.8–1.2 mm, glabrous; rhachis 1.5–12 cm long, 5–10-noded, internodes 10–15 mm long, up to 25 mm for the lowest.
Morphology Reproductive morphology Flowers
Flower pinkish-mauve, 11–17 mm long; pedicel 2–5 mm long, slightly expanding as the pod matures; bracteoles persistent, c. 1.5 × 0.8 mm, 3-nerved.
Morphology Reproductive morphology Flowers Calyx
Calyx glabrous; tube 2–3 mm long; lobes 2–3 mm long, the lower almost twice as long as the laterals, the upper pair united into a truncate, bluntly acuminate or bifid lip.
Morphology Reproductive morphology Flowers Corolla
Standard symmetrical with two central appendages; keel almost symmetrical, with a beak c. 1.5 cm long incurved through almost a circle (c. 330°).
Morphology Reproductive morphology Flowers Pollen
Pollen exine not reticulated.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 11–21-ovuled; style tip not extended into a beak beyond the stigma.
Morphology Reproductive morphology Fruits
Pod 8–14 cm × 3–4 mm, linear, flattened, glabrous, margined with raised sutures, with a straight beak.
Morphology Reproductive morphology Seeds
Seed 3–6.5 × 2–2.5 × 1–1.5 mm; hilum 1 mm long, central; without an aril.

[FWTA]

Papilionaceae, Hutchinson and Dalziel. Flora of West Tropical Africa 1:2. 1958

Morphology Stem
Stem slender
Morphology General Indumentum
Sparsely appressed-pubescent
Morphology Leaves
Older leaflets glabrous and with translucent venation
Morphology Reproductive morphology Flowers
Flowers purplish.

[ILDIS]

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Zambezian grassland, Zambezian woodland, Somalia-Masai grasslands, Lake Victoria regional transition zone; grasslands, Somalia-Masai woodland, Lake Victoria regional transition zone; woodland., Sudanian grasslands, Sudanian woodland
Morphology General Habit
Perennial, Climbing/Not climbing, Herb

[FTEA]

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

Morphology General Habit
Perennial trailing or twining herb, up to 1·2 m. long, from a very thick rootstock 18 cm. long and 2–3 cm. wide.
Morphology Stem
Stems slender, numerous, glabrous or sparsely pubescent.
Morphology Leaves
Leaflets 3, linear-lanceolate to ovate-lanceolate, ovate, oblong or rhombic, 1·5–6·8(–8·8) cm. long, 0·3–2·5(–6·2) cm. wide, acute, acuminate or rounded and mucronulate at the apex, cuneate to rounded at the base, glabrous or very sparsely hairy particularly along the margins; venation not or scarcely raised but transparent and often drying a dark colour; petiole 1–5 cm. long; rhachis 0·35–1·2 cm. long; petiolules 1–2 mm. long; stipules persistent, ovate-lanceolate or triangular, 2–3 mm. long, not produced below the base, ribbed.
Morphology Reproductive morphology Inflorescences
Racemes lax; rhachis 1·5–7 cm. long; peduncle 3·5–14 cm. long; pedicels 2–5 mm. long; bracts deciduous, ovate-lanceolate, 1–1·5 mm. long, veined; bracteoles similar but persistent.
Morphology Reproductive morphology Flowers Calyx
Calyx glabrous; tube 2–3 mm. long; lobes triangular, the lowest the longest, 2·5 mm. long, the upper pair united into a truncate, bluntly acuminate or bifid lip.
Morphology Reproductive morphology Flowers Corolla
Standard usually pinkish-mauve inside, green at the base and outside, oblate, 0·9–1·3 cm. long, 1–1·5 cm. wide, emarginate at the apex, glabrous; wings vinaceous; keel white basally, the beak mauve, incurved through almost a circle (± 330°).
Morphology Reproductive morphology Fruits
Pods linear-cylindrical, 4·8–11 (–14) cm. long, 2–4 mm. wide, margined, curved at the apex, glabrous, 8–15-seeded.
Morphology Reproductive morphology Seeds
Seeds dark crimson-brown or orange-brown speckled black, oblong, longest dimension 3–6·5 mm., shorter 2–2·5 mm., thickness 1–1·5 mm.; hilum minute, oblong, with a minute funicle-remnant persisting.
Figures
Fig. 97.
Habitat
Grassland subjected to seasonal burning, bushland, woodland and forest; often on black volcanic soil; 0–2100 m.
Distribution
K2 K3 K5 K6 K7 T1 T2 T3 T4 T5 T6 T7 T8 U1

[ILDIS]
Use
Medicine

Native to:

Bangladesh, Burundi, Ethiopia, India, Kenya, Malawi, Mozambique, Nigeria, Rwanda, Somalia, Sri Lanka, Sudan, Tanzania, Thailand, Uganda, Zambia, Zaïre, Zimbabwe

Wajira grahamiana (Wight & Arn.) Thulin & Lavin appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Aug 1, 1920 Wight, R. [724], India Vigna grahamiana K000900673
Aug 1, 1920 Wight, R. [737], India Vigna grahamiana K000900672 holotype
Dec 27, 1938 Schweinfurth [2219], Sudan Vigna macrorhyncha K000263444
Dec 27, 1938 Schweinfurth [2391/ 2346], Sudan Vigna macrorhyncha K000263445
Milne-Redhead, E. [1661A], Tanzania Vigna macrorhyncha 11642.000

First published in Syst. Bot. 29: 908 (2004)

Accepted by

  • 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.
  • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • Kumar, S. & Sane, P.V. (2003). Legumes of South Asia. A Checklist: 1-536. Royal Botanic Gardens, Kew.
  • Lock, J.M. & Heald, J. (1994). Legumes of Indo-China a checck-list: 1-164. Royal Botanic Gardens, Kew.
  • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.
  • Mackinder, B., Pasquet, R., Polhill, R. & Verdcourt, B. (2001). Flora Zambesiaca 3(5): 1-261. Royal Botanic Gardens, Kew.
  • Troupin, G. (ed.) (1983). Flora du Rwanda 2: 1-603. Musee Royal de l'Afrique Centrale.

Flora of Somalia

  • Flora Somalia, Vol 1, (1993) Author: by M. Thulin [updated by M. Thulin 2008]

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

Flora of Somalia
Flora of Somalia
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

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

Herbarium Catalogue Specimens
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 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