1. Family: Fabaceae Lindl.
    1. Apios Fabr.

      1. This genus is accepted, and its native range is Himalaya to Japan, E. Canada to Central & E. U.S.A.

    [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).

    A genus in the unnatural subtribe Erythrininae, sister to subtribe Kennediinae and tribe Desmodieae (Doyle et al., 2000); Bruneau et al. (1995) place Apios as the most basally branching genus in the above alliance including the Glycininae and Phaseolinae; genus in need of revision
    Habit
    Perennial climbing herbs or scandent shrubs
    Ecology
    Subtropical and warm temperate mixed woodland, thicket, scrub and grassland, often near rivers, lakes or swamps
    Distribution
    China, Japan, Indian subcontinent (Himalayas), Indo-China (c. 5 spp.); Canada and E & C USA (2 spp.)
    [LOWO]
    Use
    Used for human food (tubers), fodder, medicine and as ornamentals

    Images

    Distribution

    Native to:

    Alabama, Arkansas, Assam, China North-Central, China South-Central, China Southeast, Colorado, Connecticut, Delaware, East Himalaya, Florida, Georgia, Illinois, Indiana, Iowa, Japan, Kansas, Kentucky, Korea, Laos, Louisiana, Maine, Maryland, Masachusettes, Michigan, Minnesota, Mississippi, Missouri, Myanmar, Nebraska, Nepal, New Brunswick, New Hampshire, New Jersey, New York, North Carolina, Nova Scotia, Ohio, Oklahoma, Ontario, Pennsylvania, Québec, Rhode I., South Carolina, Taiwan, Tennessee, Texas, Thailand, Tibet, Vermont, Vietnam, Virginia, West Himalaya, West Virginia, Wisconsin

    Introduced into:

    France, Germany, Italy

    Apios Fabr. appears in other Kew resources:

    First published in Enum.: 176 (1759)

    Accepted by

    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 529. MIM, Deurne.

    Sources

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