Genus of legumes
Leucaena 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] Americas , ranging from Texas in the United States south to Peru .[ 5] Greek word λευκός (leukos ), meaning "white," referring to the flowers .[ 6]
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 fruits (as unripe) and seeds . The seeds of Leucaena esculenta 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:[ 1]
Leucaena collinsii Britton & Rose Mexico )[ 7] [ 8] Leucaena confertiflora Zárate Leucaena cruziana Britton & Rose Leucaena cuspidata Standl. Leucaena diversifolia (Schltdl. ) Benth. – Diverseleaf leadtree (Southern Mexico, Central America )[ 8] Leucaena esculenta (DC. ) Benth. – Esculent leadtree[ 8] [ 7] Leucaena greggii S.Watson Leucaena involucrata Zárate (Mexico)Leucaena lanceolata S.Watson (Western Mexico)[ 7] Leucaena lempirana C.E.Hughes (Honduras )Leucaena leucocephala (Lam. ) de Wit – White leadtree (Southern Mexico, Belize , Guatemala )Leucaena macrophylla Benth. – Bigleaf Leucaena[ 8] [ 7] Leucaena magnifica (C.E.Hughes) C.E.Hughes (Guatemala)Leucaena matudae (Zárate) C.E.Hughes (Mexico)Leucaena multicapitula Schery Leucaena pallida Britton & Rose Leucaena pueblana Britton & Rose Leucaena pulverulenta (Schltdl.) Benth. – Great leadtree (Southern Texas , Northeastern Mexico).[ 7] Leucaena retusa Benth. – Littleaf leadtree (Western Texas, Northern Mexico)[ 7] Leucaena salvadorensis Standl. ex Britton & RoseEl Salvador , Honduras, Nicaragua )Leucaena shannonii Donn.Sm. [ 8] [ 7] Leucaena trichandra (Zucc.) Urb. – Hairystamen leadtree (Southern Mexico, Central America)[ 8] Leucaena trichodes (Jacq.) Benth. – Hairy leadtree (Southern Central America, Northwestern South America, Hispaniola )[ 8] [ 9] [ 10] Leucaena zacapana (C.E.Hughes) R.Govind. & C.E.Hughes
Hybrids
References
^ a b c Leucaena Benth.Plants of the World Online ^ "Leucaena Benth" . TROPICOS . Missouri Botanical Garden. Retrieved 2010-03-23 .^ "Leucaena Benth" . Germplasm Resources Information Network . United States Department of Agriculture. 2007-10-05. Retrieved 2010-03-23 .^ "Leucaena " . Integrated Taxonomic Information System . Retrieved 23 March 2010 .^ a b c Mabberley, D.J. (1997). The Plant-Book: A portable dictionary of the vascular plants 406 . ISBN 978-0-521-41421-0 ^ Glen, Hugh (2004). Sappi What's in a Name? ISBN 978-1-77009-040-8 ^ a b c d e f g Nugent, Jeff; Julia Boniface (2004). Permaculture Plants: A Selection 24– 26. ISBN 978-1-85623-029-2 ^ a b c d e f g Grandtner, Miroslav M. (2005). Elsevier's Dictionary of Trees 473– 475. ISBN 978-0-444-51784-5 ^ a b "Species Records of Leucaena " . Germplasm Resources Information Network . United States Department of Agriculture. Retrieved 2010-11-23 .^ Barstow, M. (2020). "Leucaena trichodes " . IUCN Red List of Threatened Species 2020 : e.T62026291A62026298. doi :10.2305/IUCN.UK.2020-1.RLTS.T62026291A62026298.en . Retrieved 9 April 2021 . ^ 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
External links
