1. Family: Fabaceae Lindl.
    1. Macroptilium (Benth.) Urb.

      1. This genus is accepted, and its native range is Tropical & Subtropical America.


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


    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, in a clade together with Mysanthus, Dolichopsis and Strophostyles (Riley-Hulting et al., 2004)
    Seasonally dry tropical and subtropical disturbed forest, woodland or thicket, scrubland and grassland, often weedy; 2 species (below) widely naturalised in E and S tropical Africa
    N to S America from S USA to Argentina, mainly concentrated in tropical S America

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

    Herbs, prostrate or twining.
    Leaves pinnately 3-foliolate; stipules subpersistent, not prolonged below the point of insertion, striate; stipels present.
    Inflorescences axillary, falsely racemose, long-pedunculate, the flowers in fascicles along the rhachis which is swollen at the insertion of the pedicels; bracts and bracteoles present, deciduous or ± persistent.
    Flowers usually fairly small, white or red to blackish-purple.
    Calyx 5-lobed; upper lobes joined higher.
    Standard broad, reflexed, without appendages; wings broadly rounded; keel with a long claw adnate to the staminal sheath, the blade rather narrow, elongated, the apex beaked and forming a spiral of 270º, shorter than the wings.
    Vexillary stamen free; anthers uniform.
    Ovary linear, with numerous ovules; style tenuous below, filiform and flexible, the apical part cartilaginous and thickened, abruptly curved through 90° just above its junction with the tenuous part, narrowed and slightly curved towards the apex, resembling a squarish hook, hairy inside towards the terminal stigma.
    Pods long and narrow, many-seeded.
    Seeds small, with a short hilum.
    Major pasture and fodder legumes, e.g., M. atropurpureum (DC.) Urb. (siratro) and M. lathyroides (L.) Urb. (phasy bean)



    Native to:

    Argentina Northeast, Argentina Northwest, Arizona, Aruba, Bahamas, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Cayman Is., Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Florida, French Guiana, Galápagos, Georgia, Guatemala, Guyana, Haiti, Honduras, Jamaica, Leeward Is., Louisiana, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Netherlands Antilles, New Mexico, Nicaragua, Panamá, Paraguay, Peru, Puerto Rico, Southwest Caribbean, Suriname, Texas, Trinidad-Tobago, Turks-Caicos Is., Uruguay, Venezuela, Windward Is.

    Introduced into:

    Alabama, Andaman Is., Angola, Bangladesh, Benin, Burkina, Chagos Archipelago, China Southeast, Christmas I., Cocos (Keeling) Is., Cook Is., Easter Is., Ethiopia, Fiji, Gabon, Hawaii, India, Jawa, Kenya, Lesser Sunda Is., Madagascar, Malaya, Mali, Marianas, Mauritius, Mexican Pacific Is., Nansei-shoto, New Caledonia, New Guinea, New South Wales, Niue, Northern Territory, Pakistan, Philippines, Queensland, Rodrigues, Réunion, South China Sea, Sri Lanka, St.Helena, Taiwan, Tanzania, Thailand, Tokelau-Manihiki, Tonga, Uganda, Vietnam, Wallis-Futuna Is., Western Australia, Zimbabwe

    Macroptilium (Benth.) Urb. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Silva, J.S. [172], Brazil K000909360
    Melo, Y. [150], Brazil K000909361

    First published in Symb. Antill. 9: 457 (1928)


    Flora Zambesiaca
    • Symb. Antill. 9: 457 (1928).


    Flora Zambesiaca
    Flora Zambesiaca

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    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. 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