Family:
Fabaceae Lindl.

Lablab Adans.

This genus is accepted, and its native range is Cape Verde, Tropical & S. Africa, Madagascar, India.

[FZ]

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

Morphology General Habit
Suberect or climbing herbs.
Morphology Leaves
Leaves pinnately 3-foliolate; stipules mostly reflexed and persistent; stipels lanceolate.
Morphology Reproductive morphology Inflorescences
Inflorescences axillary, falsely racemose; peduncles long; rhachis swollen at the insertion of the pedicels.
Morphology Reproductive morphology Flowers Calyx
Calyx 2-lipped; tube campanulate; upper lip entire or emarginate, lower lip 3-lobed.
Morphology Reproductive morphology Flowers Corolla
Corolla rather small, crimson, reddish-purple or white; standard round, usually reflexed, auriculate, with 2 callosities or appendages on the inner face; keel with beak incurved at a right-angle.
Morphology Reproductive morphology Flowers Androecium Stamens
Vexillary stamen free or loosely joined; anthers uniform.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary with several ovules; style with no narrow tenuous basal portion, stiffened, laterally flattened, slightly curved at the apex, hairy on the internal face; stigma terminal.
Morphology Reproductive morphology Fruits
Pods oblong or oblong-falcate, tipped by the persistent style, sometimes with upper margin verrucose; septa spongy.
Morphology Reproductive morphology Seeds
Seeds ovoid, compressed; hilum linear, with a whitish linear or hemispherical aril.

[LOWO]

Legumes of the World. Edited by G. Lewis, B. Schrire, B. MacKinder & M. Lock. Royal Botanic Gardens, Kew. (2005)

Note

Previous accounts of the Phaseoleae by Baudet (1978) and Lackey (1981) recognised 90 and 84 genera and c. 1540 and 1480 species respectively in the tribe. In an equivalent, i.e. traditionally held view of Phaseoleae, 89 genera and (1554)–1567–(1580) species are treated here (Table 9; Fig. 47). Changes between Baudet (1978) and this treatment are that eleven genera are now in synonymy or have subsequently been placed in Millettieae, two genera have been transferred from Desmodieae and eight new genera have been added. Vigna has traditionally been thought to comprise some 150–200 species, but Vigna sens. strict. may contain fewer than 100.

Recent molecular analyses of the tribe, however, have emphasised both the polyphyletic and paraphyletic nature of Phaseoleae as traditionally circumscribed (Bruneau & Doyle, 1990; Doyle & Doyle, 1993; Delgado Salinas et al., 1993; Bruneau et al., 1995; Doyle et al., 1997, 2000; Kajita et al., 2001; Goel et al., 2001; Lee & Hymowitz, 2001). This has required a radical realignment of elements of the phaseoloids (Table 9; Fig. 47), with at least two major clades being evident: Phaseoleae subtribes Diocleinae and Ophrestiinae which together with tribe Abreae are allied to the core-Millettieae (Fig. 45), and the remaining groups comprising a Phaseoleae sens. lat. clade. The rbcL phylogeny of Kajita et al. (2001) and the ITS analysis of Hu et al. (2002) are equivocal as to which clade subtribe Clitoriinae belongs. Phaseoleae sens. lat. also includes two traditionally independent tribes, the Desmodieae and Psoraleeae. Delimiting a recircumscribed Phaseoleae sens. strict is thus very problematic. A solution may be to recognise a broad tribe Phaseoleae, comprising the subtribes Kennediinae, Cajaninae, Phaseolinae and Glycininae, assorted basally branching genera, and tribes Desmodieae and Psoraleeae (both treated at subtribal level).

Placed in subtribe Phaseolinae, allied to Dipogon (Thulin et al., 2004); 3 subsp. and numerous varieties or cultivars are recognised
Habit
Herbs
Ecology
Seasonally dry tropical and subtropical forest margins, bushland and grassland, drought resistant, does well on poor soils
Distribution
Africa (mostly Zambezian and Sudanian to Somalia-Masai regions), Madagascar, Asia (Indian subcontinent), widely introduced elsewhere

[FTEA]

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

Morphology General Habit
Suberect or climbing herbs
Morphology Leaves
Leaves pinnately 3-foliolate; stipules mostly reflexed and persistent; stipels lanceolate
Morphology Reproductive morphology Inflorescences
Inflorescences axillary, falsely racemose; peduncles long; rhachis swollen at the insertion of the pedicels
Morphology Reproductive morphology Flowers Calyx
Calyx 2-lipped; tube campanulate; upper lip entire or emarginate, lower lip 3-lobed
Morphology Reproductive morphology Flowers Corolla
Corolla rather small, crimson, reddish-purple or white; standard round, usually reflexed, auriculate, with 2 callosities or appendages on the inner face; keel with beak incurved at a right-angle
Morphology Reproductive morphology Flowers Androecium Stamens
Vexillary stamen free or loosely joined; anthers uniform
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary with several ovules; style with no narrow tenuous basal portion, stiffened, laterally flattened, slightly curved at the apex, hairy on the internal face; stigma terminal
Morphology Reproductive morphology Fruits
Pods oblong or oblong-falcate, tipped by the persistent style, sometimes with upper margin verrucose; septa spongy
Morphology Reproductive morphology Seeds
Seeds ovoid, compressed; hilum linear, with a whitish linear or hemispherical aril.

[LOWO]
Use
Lablab purpureus (L.) Sweet (hyacinth or bonavist bean) is widely cultivated in the tropics for human food (vegetable or pulse), also for fodder, green manure, ground cover and medicine

Native to:

Angola, Benin, Botswana, Cameroon, Cape Provinces, Cape Verde, Central African Repu, Eritrea, Ethiopia, Free State, Gabon, Gambia, Ghana, India, Ivory Coast, Kenya, KwaZulu-Natal, Madagascar, Malawi, Mozambique, Namibia, Nigeria, Northern Provinces, Rwanda, Senegal, Sierra Leone, Sudan, Swaziland, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

Introduced into:

Andaman Is., Ascension, Assam, Bangladesh, Bermuda, Bolivia, Borneo, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Cambodia, Canary Is., Caroline Is., Cayman Is., Chad, China North-Central, China South-Central, China Southeast, Christmas I., Colombia, Cook Is., Dominican Republic, East Himalaya, Easter Is., Ecuador, Fiji, Galápagos, Guatemala, Gulf of Guinea Is., Hainan, Haiti, Hawaii, Iraq, Jamaica, Jawa, Korea, Laccadive Is., Laos, Lebanon-Syria, Leeward Is., Lesser Sunda Is., Malaya, Maldives, Mali, Marianas, Marquesas, Marshall Is., Mauritius, Mexico Southwest, Myanmar, Nauru, Nepal, New Caledonia, New Guinea, New South Wales, New York, Nicobar Is., Niger, Niue, Norfolk Is., North Caucasus, Northern Territory, Pakistan, Peru, Philippines, Pitcairn Is., Puerto Rico, Queensland, Réunion, Somalia, Sri Lanka, Sumatera, Thailand, Tonga, Transcaucasus, Trinidad-Tobago, Tuamotu, Tubuai Is., Tunisia, Ukraine, Uruguay, Vanuatu, Vietnam, West Himalaya, Western Australia, Windward Is., Yemen

Lablab Adans. appears in other Kew resources:

First published in Fam. Pl. 2: 325 (1763)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6. Scientific Data 8: 215.

Literature

Flora of West Tropical Africa

  • Fam. Pl. 2: 325 (1763).

Flora Zambesiaca

  • Fam. Pl. 2: 325 (1763).

Flora of Tropical East Africa

  • Fam. Pl. 2: 325 (1763)

  • 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

  • Kew Backbone Distributions

    The International Plant Names Index and World Checklist of Vascular Plants 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    © Copyright 2022 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 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Legumes of the World Online

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