Leucaena

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Leucaena
Leucaena glauca.jpg
Leucaena leucocephala
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Clade: Mimosoid clade
Genus: Leucaena
Benth. (1842), nom. cons.
Type species
Leucaena glauca
Benth. [1]
Species [2]

24; see text

Synonyms [2] [3]
  • Caudoleucaena Britton & Rose (1928)
  • RyncholeucaenaBritton & Rose (1928)

Leucaena is a genus of flowering plants in the mimosoid clade of the subfamily Caesalpinioideae of the family Fabaceae. It contains about 24 species of trees and shrubs, which are commonly known as leadtrees. [4] They are native to the Americas, ranging from Texas in the United States south to Peru. [5] The generic name is derived from the Greek word λευκός (leukos), meaning "white," referring to the flowers. [6]

Contents

Uses

Leucaena species are grown for their variety of uses, including as green manure, a charcoal source, livestock fodder, and for soil conservation. The seeds (jumbie beans) can be used as beads. Leucaena planted for firewood on an area of 120 km2 (46 sq mi) will yield an energy equivalent of 1 million barrels of oil per year. Anthelmintic medicines are made from extracts of Leucaena seeds in Sumatra, Indonesia. [5]

Some species (namely Leucaena leucocephala ) have edible fruits (as unripe) and seeds. The seeds of Leucaena esculenta (in Mexico called guaje or huaje) are eaten with salt in Mexico. In other species high levels of mimosine may lead to hair loss and infertility in non-ruminants. [5]

Species

24 species are accepted: [2]

Hybrids

Formerly placed here

Related Research Articles

<span class="mw-page-title-main">Mimosoideae</span> Subfamily of legumes

The Mimosoideae are a traditional subfamily of trees, herbs, lianas, and shrubs in the pea family (Fabaceae) that mostly grow in tropical and subtropical climates. They are typically characterized by having radially symmetric flowers, with petals that are twice divided (valvate) in bud and with numerous showy, prominent stamens.

<i>Abutilon</i> Genus of flowering plants

Abutilon is a large genus of flowering plants in the mallow family, Malvaceae. It is distributed throughout the tropics and subtropics of the Americas, Africa, Asia, and Australia. General common names include Indian mallow and velvetleaf; ornamental varieties may be known as room maple, parlor maple, or flowering maple. The genus name is an 18th-century Neo-Latin word that came from the Arabic ’abū-ṭīlūn, the name given by Avicenna to this or a similar genus.

<i>Myrica</i> Genus of flowering plants

Myrica is a genus of about 35–50 species of small trees and shrubs in the family Myricaceae, order Fagales. The genus has a wide distribution, including Africa, Asia, Europe, North America and South America, and missing only from Australia. Some botanists split the genus into two genera on the basis of the catkin and fruit structure, restricting Myrica to a few species, and treating the others in Morella.

<i>Leucaena leucocephala</i> Species of legume

Leucaena leucocephala is a small fast-growing mimosoid tree native to southern Mexico and northern Central America and is now naturalized throughout the tropics including parts of Asia.

<span class="mw-page-title-main">Mimosine</span> Chemical compound

Mimosine or leucenol is a toxic non-protein amino acid chemically similar to tyrosine. It occurs in some Mimosa spp. and all members of the closely related genus Leucaena.

<i>Pithecellobium</i> Genus of legumes

Pithecellobium is a genus of flowering plants in the family Fabaceae. It includes approximately 23 species from the tropical Americas, ranging from Mexico to Peru and northern Brazil, including the Caribbean Islands and Florida.

<i>Swartzia</i> Genus of legumes

Swartzia is a genus of flowering plants in the family Fabaceae. It was named in honor of Swedish botanist Olof Swartz and contains about 200 species. Swartzia is restricted in its geographical distribution to the New World Tropics, where it occurs primarily in lowland rainforests, but also in savannas, pre-montane forests, and tropical dry forests. While it can be found throughout the wet lowlands from Mexico and the Caribbean islands to southern Brazil and Bolivia, Swartzia is most abundant and species-rich in Amazonia, where 10–20 species may co-occur at a single site. The species of Swartzia are mostly trees, ranging from small understory treelets to large canopy emergents. Some species, especially in savannas, are mult-stemmed shrubs.

<i>Tephrosia</i> Genus of plants

Tephrosia is a genus of flowering plants in the family Fabaceae. It is widespread in both the Eastern and Western Hemisphere, where it is found in tropical and warm-temperate regions.

<i>Zygia</i> Genus of legumes

Zygia is a genus of flowering plants in the family Fabaceae. It includes 60 species of tres and shrubs native to the tropical Americas, from Southern Mexico and Cuba to northern Argentina. Typical habitats are tropical forest and coastal zones, generally below 900 meters elevation with a few species extending up to 2800 meters. It belongs to the mimosoid clade of the subfamily Caesalpinioideae.

<i>Aeschynomene</i> Genus of legumes

Aeschynomene is a genus of flowering plants in the family Fabaceae, and was recently assigned to the informal monophyletic Dalbergia clade of the Dalbergieae. They are known commonly as jointvetches. They range across tropical and subtropical regions of the Americas, sub-Saharan Africa, south, southeast, and east Asia, and Australia. These legumes are most common in warm regions and many species are aquatic.

<i>Hoffmannseggia</i> Genus of legumes

Hoffmannseggia is a genus of flowering plants in the pea family, Fabaceae, known generally as rushpeas. These are pod-bearing herbs and subshrubs native to the Americas. In North America they range from California and Nebraska to southern Mexico, and from Colombia, Ecuador, and Peru to southern Argentina and Chile in South America. The generic name honors Johann Centurius, Count of Hoffmannsegg, a nineteenth-century German nobleman and botanist.

<i>Lysiloma</i> Genus of legumes

Lysiloma is a genus of flowering plants in the family Fabaceae.

<i>Hernandia</i> Genus of flowering plants

Hernandia is a genus of flowering plants in the family Hernandiaceae. It was named after the Spanish botanist Francisco Hernández de Toledo.

<i>Spigelia</i> Genus of plants

Spigelia is a genus of flowering plants in the family Loganiaceae. It contains around 60 species, distributed over the warmer parts of the Americas, from the latitude of Buenos Aires to the Southern United States. It was named after Adriaan van den Spiegel by Carl Linnaeus in his 1753 Species Plantarum; the type species is Spigelia anthelmia. Pinkroot is a common name for plants in this genus.

<i>Jacquemontia</i> Genus of flowering plants

Jacquemontia is a genus of plants in the morning glory family Convolvulaceae. Species in this genus are commonly known as clustervine.

Erythrostemon is a genus of flowering plants in the legume family, Fabaceae. Its native range is tropical & subtropical America.

<i>Libidibia</i> Genus of legumes

Libidibia is a genus of flowering plants in the family Fabaceae. It includes seven species of trees and shrubs native to the tropical Americas, ranging from northern Mexico to northern Argentina. Typical habitats include seasonally-dry tropical forest and scrub, thorn forest, and savanna woodland. It belongs to the subfamily Caesalpinioideae.

<i>Leucaena diversifolia</i> Species of plant in the family Fabaceae

Leucaena diversifolia, the wild tamarind or red leucaena, is a species of flowering plant in the family Fabaceae, native to Mexico and Central America. It has been introduced as a cattle fodder in many tropical and subtropical locales around the world. It and its hybrid with Leucaena leucocephala are as aggressively invasive as L. leucocephala itself.

Neltuma is a genus of flowering plants in the pea family (Fabaceae). It includes 43 species native to the Americas. The species range from the southwestern and central United States through Mexico, Central America, the Caribbean, and South America to southern Argentina.

References

  1. "Leucaena Benth". TROPICOS. Missouri Botanical Garden. Retrieved 2010-03-23.
  2. 1 2 3 Leucaena Benth. Plants of the World Online . Retrieved 4 September 2023.
  3. "Leucaena Benth". Germplasm Resources Information Network. United States Department of Agriculture. 2007-10-05. Retrieved 2010-03-23.
  4. "Leucaena". Integrated Taxonomic Information System . Retrieved 23 March 2010.
  5. 1 2 3 Mabberley, D.J. (1997). The Plant-Book: A portable dictionary of the vascular plants (2nd ed.). Cambridge, England: Cambridge University Press. p.  406. ISBN   978-0-521-41421-0.
  6. Glen, Hugh (2004). Sappi What's in a Name?. Jacana Media. p. 39. ISBN   978-1-77009-040-8.
  7. 1 2 3 4 5 6 7 Nugent, Jeff; Julia Boniface (2004). Permaculture Plants: A Selection (2nd ed.). Chelsea Green Publishing. pp. 24–26. ISBN   978-1-85623-029-2.
  8. 1 2 3 4 5 6 7 Grandtner, Miroslav M. (2005). Elsevier's Dictionary of Trees. Vol. 1. Elsevier. pp. 473–475. ISBN   978-0-444-51784-5.
  9. 1 2 "Species Records of Leucaena". Germplasm Resources Information Network. United States Department of Agriculture. Retrieved 2010-11-23.
  10. Barstow, M. 2020. Leucaena trichodes. The IUCN Red List of Threatened Species 2020: e.T62026291A62026298. https://dx.doi.org/10.2305/IUCN.UK.2020-1.RLTS.T62026291A62026298.en. Downloaded on 09 April 2021.
  11. Hartman, T. P. V; J. Jones; N. W. Blackhall; J. B. Power; E. C. Cocking; M. R. Davey (2000). Helmut Guttenberger (ed.). "Cytogenetics, Molecular Cytogenetics, and Genome Size in Leucaena (Leguminosae, Mimosoideae)". Cytogenetic Studies of Forest Trees and Shrubs: Review, Present Status, and Outlook on the Future: Proceedings of the Second IUFRO Cytogenetics Working Party S2.04.08 Symposium, September 6–12, 1998, Graz, Austria: 57–70. ISBN   9788096708888.