Canavalia africana Dunn

First published in Bull. Misc. Inform. Kew 1922: 135 (1922)
This species is accepted
The native range of this species is Tropical & S. Africa, Arabian Peninsula, Indian Subcontinent to Indo-China. It is a climbing annual or perennial and grows primarily in the seasonally dry tropical biome.

Descriptions

International Legume Database and Information Service

Conservation
Not Threatened
Ecology
Africa: Sudanian grasslands, Somalia-Masai bushland and thicket, Somalia-Masai grasslands, Sudanian bushland and thicket, Zambezian bushland and thicket, Zambezian grassland
Morphology General Habit
Annual/Perennial, Climbing, Herb
Vernacular
Moodu-awara, Sem, Wild Sword Bean
[ILDIS]

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

Morphology General Habit
Perennial climber, or stems trailing, 3–15 m long.
Morphology Stem
Stems appressed ferruginous pubescent, glabrescent.
Morphology Leaves Leaflets
Leaflets 6–17(23) × 4–12(15) cm, ovate, acuminate to a short blunt tip or elsewhere rarely rounded, sparsely to densely pubescent on both surfaces; petiole 4–13(16) cm long; stipules c. 2 mm long, rather thick.
Morphology Reproductive morphology Inflorescences
Inflorescences 18–50 cm long, long-pedunculate; pedicels 2 mm long; bracteoles just over 1 mm long, obtuse.
Morphology Reproductive morphology Flowers Calyx
Calyx pubescent; tube 6–9 mm long; upper lip 4–5 mm long, rounded or emarginate.
Morphology Reproductive morphology Flowers Corolla
Standard mauve with white veins and green towards the base, 2.7–3 × 1.7 cm, oblong; wings and keel mauve, white towards the base.
Morphology Reproductive morphology Fruits
Pods 10–17 × 2.5–3 cm, linear-oblong, each valve with a sutural rib and an extra rib just below this, densely ferruginous pubescent at first, later somewhat glabrescent.
Morphology Reproductive morphology Seeds
Seeds brown or reddish-brown, sometimes marbled with black, 16–20 × 11–20 × 7–11 mm; hilum 11–15 mm long.
[FZ]

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

Morphology General Habit
Perennial climber or trailer, 3–15 m tall
Morphology Leaves Leaflets
Leaflets ovate, up to 16.5 x 12 cm, usually acuminate to a short tip, sparsely to densely pubescent on both surfaces
Morphology Reproductive morphology Flowers Calyx
Calyx-tube 6–9 mm long; upper lip 4–5 mm long, rounded or emarginate
Morphology Reproductive morphology Flowers Corolla
Corolla mauve or pale purple, 2.7–3 cm long
Morphology Reproductive morphology Fruits
Pod linear-oblong, 10–20 x 2.5–3 cm, with longitudinal ribs close to the upper margin
Morphology Reproductive morphology Seeds
Seeds 1.6–2 cm long, brown; hilum 11–15 mm long.
Distribution
N3; S1, 2 widespread in tropical Africa; Socotra, S Arabia, India
Ecology
Altitude range c. 100–400 m.
Vernacular
Diir-daguer (Somali).
Note
For the nomenclature of this species, see Verdcourt in Kew Bull. 42: 658 (1987).
[FSOM]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Uses

Use
Food and Drink, Toxins
[ILDIS]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0
  • 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
  • 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 Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0