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This genus is accepted, and its native range is S. Central U.S.A. to Venezuela and Peru, Hispaniola.
Leucaena diversifolia

[FTEA]

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

Morphology General Habit
Trees or shrubs, unarmed
Morphology Leaves
Leaves bipinnate; a gland often present at junction of lowest pair of pinnae, petiole and rhachis otherwise eglandular, or rarely with glands between other pairs of pinnae; pinnae each with one to several or many pairs of leaflets
Morphology Reproductive morphology Inflorescences
Inflorescences of round heads, pedunculate, axillary, 1–3 together, often racemosely aggregated
Morphology Reproductive morphology Flowers
Flowers hermaphrodite, sessile
Morphology Reproductive morphology Flowers Calyx
Calyx gamosepalous with 5 teeth
Morphology Reproductive morphology Flowers Corolla
Petals 5, free, pubescent to glabrous outside
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 10, fertile
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers eglandular at apex (except in the extra-African L. forsteri)
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary pubescent or sometimes glabrous
Morphology Reproductive morphology Fruits
Pods oblong or linear-oblong, compressed, usually thinly sub coriaceous, splitting into 2 non-recurving valves
Morphology Reproductive morphology Seeds
Seeds lying ± transversely in the pod, compressed, brown, glossy, unwinged, with endosperm.

[FZ]

Leguminosae, J.P.M. Brenan. Flora Zambesiaca 3:1. 1970

Morphology General Habit
Trees or shrubs, unarmed.
Morphology Leaves
Leaves 2-pinnate; a gland often present at the junction of the lowest pair of pinnae, petiole and rhachis otherwise eglandular, or rarely with glands between other pairs of pinnae; pinnae each with one to several or many pairs of leaflets.
Morphology Reproductive morphology Inflorescences
Inflorescences of rounded heads, pedunculate, axillary, 1-3 together, often racemosely aggregated.
Morphology Reproductive morphology Flowers
Flowers hermaphrodite, sessile.
Morphology Reproductive morphology Flowers Calyx
Calyx gamosepalous with 5 teeth.
Morphology Reproductive morphology Flowers Corolla
Petals 5, free, pubescent to glabrous outside.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 10, fertile.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers eglandular at the apex (except in the extra-African L. forsteri).
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary pubescent or sometimes glabrous.
Morphology Reproductive morphology Fruits
Pods oblong or linear-oblong, compressed, usually thinly subcoriaceous, splitting into 2 non-recurving valves.
Morphology Reproductive morphology Seeds
Seeds lying ± transversely in the pod, compressed, brown, glossy, unwinged, with endosperm.

[FSOM]

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

Morphology General Habit
Trees or shrubs, unarmed
Morphology Leaves
Leaves bipinnate
Morphology Reproductive morphology Inflorescences
Flowers bisexual, sessile, in round heads
Morphology Reproductive morphology Flowers Calyx
Calyx 5-lobed
Morphology Reproductive morphology Flowers Corolla
Corolla of 5 free petals
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 10; anthers eglandular at apex
Morphology Reproductive morphology Fruits
Pods oblong or linear-oblong, flattened, splitting into 2 non-recurving valves.
Distribution
Some 25 species, all tropical American, but one widely cultivated.

[LOWO]

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

Note

The tribe Mimoseae (sensu Bentham, 1875) is retained here simply as a matter of convenience. All recent phylogenetic analyses indicate that Ingeae and Acacieae are derived from within Mimoseae (Chappill & Maslin, 1995; Käss & Wink, 1996; Luckow et al., 2000; Bruneau et al., 2001; Luckow et al., 2003; Herendeen et al., 2003a), making it a paraphyletic group at best. The most recent studies indicate that it may not even be monophyletic with respect to the Caesalpinioideae (Luckow et al., 2000; Bruneau et al., 2001; Luckow et al., 2003).

Although the outline of a new tribal classification of the mimosoids is emerging, we await better-supported phylogenies (based on more extensive data) before formalising new stable and useful groups. Some parts of the classification proposed here are better supported than others. Notably, the basal branches in Fig. 24 are poorly supported in most analyses and the relationships among the groups are likely to change as we acquire more data. As presently indicated (Luckow et al., 2003), the type genus Mimosa falls within the derived Piptadenia group which is in turn sister, and basally branching, to elements of Acacia and Ingeae (Fig. 24). A more narrowly circumscribed Mimoseae sens. strict. will thus leave the bulk of Mimoseae sens. lat. (i.e., as treated here) in need of new tribal allocation. The most conspicuous difference between the classification presented here and that of Lewis & Elias (1981) is the inclusion of tribe Parkieae within Mimoseae. The former was circumscribed based on imbricate aestivation of the calyx, and was considered the basal tribe within the Mimosoideae (Elias, 1981a). Recent phylogenetic analyses (Chappill & Maslin, 1995; Luckow et al., 2000; Bruneau et al., 2001; Luckow et al., 2003; Herendeen et al., 2003a), indicate that the two genera in the Parkieae, Parkia and Pentaclethra, are not sister taxa (Fig. 24). Pentaclethra is nested within Mimoseae in Luckow et al. (2000), but is either sister to caesalpinioid taxa in Bruneau et al. (2001) and Herendeen et al. (2003a), or part of a basal polytomy with Mimoseae and caesalpinioid taxa (Luckow et al., 2003). Both Parkia and Pentaclethra are included in the tribe Mimoseae pending additional data and tribal recircumscription.

Recent work (Luckow et al., submitted a) also indicates that the monospecific tribe Mimozygantheae should be subsumed in the Mimoseae near Piptadeniopsis and Prosopidastrum, currently in the Prosopis group. Otherwise, the informal groups within the Mimoseae recognised by Lewis & Elias (1981) are relatively well-supported by current phylogenies and only a few departures have been made from their system. Where relationships are either poorly supported or unresolved, the classification of Lewis & Elias (1981) is retained. The Xylia group is dismantled and the Adenanthera group recircumscribed to include Calpocalyx and Xylia . Desmanthus has been removed from the Dichrostachys group, as has Neptunia, in agreement with recent molecular and morphological phylogenetic studies (Harris et al., 1994; Hughes, 1998; Luckow, 1995, 1997). A new group is erected to accommodate Piptadeniastrum which is well separated from Newtonia in the most recent phylogeny (Luckow et al., 2000; 2003), and another to accommodate Cylicodiscus, which is more closely related to the clade containing the Prosopis, Leucaena, Dichrostachys, and Piptadenia groups than it is to the Newtonia group. Neptunia is well supported as sister to Prosopidastrum in recent analyses (Luckow et al., 2003) and is included in the Prosopis group here. Relationships of genera in the Prosopis group are not resolved, but the group is retained here as there is no evidence that it is not monophyletic. Genera newly described since 1981 include Alantsilodendron, Calliandropsis, Kanaloa, and Lemurodendron. Alantsilodendron and Calliandropsis are placed in the Dichrostachys group, and Kanaloa in the Leucaena group based on phylogenetic analyses (Hughes, 1998; Luckow, 1997; Luckow et al., 2000). Lemurodendron is tentatively included in the Newtonia group as suggested by Villiers & Guinet (1989). As treated here the Mimoseae comprises 40 genera and from (859)– 869–(879) species.

Placed in a well supported clade sister to Schleinitzia, Kanaloa and Desmanthus (Luckow et al., 2003; Hughes et al., 2003), in the Leucaena group
Habit
Trees and shrubs
Ecology
Tropical and subtropical seasonally dry forest, semi-arid thorn scrub forest, to warm temperate open habitats
Distribution
Mexico (10 endemic spp. with 2 extending to S USA [Texas and New Mexico] and 4 spp. to C America); 4 endemic spp. in C America; 1 sp. in S America (N and W coastal regions S to Peru); 1 sp. pantropical

[LOWO]
Use
Leucaena leucocephala (Lam.) de Wit (leucaena, koa haole, jumbie bean, guaje, ipil-ipil) is cultivated pantropically and has become naturalised and weedy in many areas; this and other species are used for livestock feed, green manure, timber (for construction, firewood and charcoal), small wood products, soil conservation (ground cover and reforestation) and human food (unripe pods and seeds)

Native to:

Belize, Colombia, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Haiti, Honduras, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, New Mexico, Nicaragua, Panamá, Peru, Texas, Venezuela, Venezuelan Antilles

Introduced into:

Algeria, Andaman Is., Angola, Argentina Northwest, Aruba, Ascension, Assam, Bahamas, Bangladesh, Benin, Bermuda, Bismarck Archipelago, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Burkina, Burundi, Cambodia, Cameroon, Canary Is., Cape Provinces, Cape Verde, Caroline Is., Cayman Is., Central African Repu, Chad, Chagos Archipelago, China South-Central, China Southeast, Christmas I., Cocos (Keeling) Is., Comoros, Congo, Cook Is., Cuba, Cyprus, Djibouti, East Himalaya, Easter Is., Egypt, Eritrea, Ethiopia, Fiji, French Guiana, Galápagos, Gambia, Ghana, Gilbert Is., Guinea, Guinea-Bissau, Gulf of Guinea Is., Guyana, Hainan, Hawaii, India, Iraq, Ivory Coast, Jamaica, Jawa, Kazan-retto, Kenya, KwaZulu-Natal, Laos, Lebanon-Syria, Leeward Is., Lesser Sunda Is., Liberia, Line Is., Madagascar, Malawi, Malaya, Maldives, Mali, Marianas, Marquesas, Marshall Is., Mauritania, Mauritius, Mozambique, Namibia, Nansei-shoto, Nauru, Nepal, Netherlands Antilles, New Caledonia, New Guinea, New South Wales, Nicobar Is., Niger, Nigeria, Niue, Northern Provinces, Northern Territory, Ogasawara-shoto, Oman, Pakistan, Palestine, Philippines, Phoenix Is., Pitcairn Is., Portugal, Puerto Rico, Queensland, Rodrigues, Rwanda, Réunion, Samoa, Sardegna, Senegal, Seychelles, Sicilia, Sierra Leone, Society Is., Solomon Is., Somalia, South China Sea, Southwest Caribbean, Spain, Sri Lanka, St.Helena, Sudan, Suriname, Swaziland, Taiwan, Tanzania, Thailand, Togo, Tonga, Trinidad-Tobago, Tuamotu, Tubuai Is., Tunisia, Turks-Caicos Is., Uganda, Vanuatu, Vietnam, Wake I., Wallis-Futuna Is., West Himalaya, Western Australia, Windward Is., Yemen, Zaïre, Zimbabwe

Leucaena Benth. appears in other Kew resources:

First published in J. Bot. (Hooker) 4: 416 (1842)

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

  • Benth. in Trans. Linn. Soc. 30: 442 (1875).
  • —F.T.A. 2 337

Flora Zambesiaca

  • in Hook., Journ. Bot. 4: 416 (1842).

Flora of Somalia

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

Flora of Tropical East Africa

  • in Hook., Journ. Bot. 4: 416 (1842)

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

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

Legumes of the World Online
http://creativecommons.org/licenses/by-nc-sa/3.0