1. Family: Araceae Juss.
    1. Genus: Amorphophallus Blume ex Decne.
      1. Amorphophallus laoticus Hett.

        This species is accepted, and its native range is Laos.

    [CATE]

    CATE Araceae, 17 Dec 2011. araceae.e-monocot.org

    General Description

    Tuber elongate, thin, to ca. 30 cm long, ca. 3 cm in diam. Leaf solitary, petiole 55-80 cm long, 1-2 cm in diam., smooth but epidermal cells distinctly sharp conical providing the petiole with a satiny sheen and a slightly papery touch, background blackish grey or dark reddish brown with many scattered, irregular, pale grey spots and numerous tiny, pale grey dots; lamina 72-100 cm wide, rachises narrowly winged throughout; leaflets elliptic-lanceolate to lanceolate, narrowly acute, 14-20 cm long, 2-4 cm wide, upper surface deep velvety green with a broad grey zone along the midrib. Inflorescence solitary, long peduncled; peduncle 25-50 cm long, 1-1.8 cm in diam. as petiole; spathe broadly elongate triangular, acute, 10-33 cm long, 10-37 cm in diam., base and limb separated by a strong constriction, base outside pale green with scattered, linear, whitish spots, inside dark purple, limb oblique, strongly arching forward at male anthesis, outside along the centre strongly costate, colour as base but margins flushed dirty purple, inside dull dark purple, margin slightly undulate, base within strongly papillate-verrucate, verrucae often narrowly muricate or partly confluent and ridge-like. Spadix longer than spathe, sessile, 18-90 cm long; female zone cylindric, 4 cm long, 1-3 cm in diam. (incl. styles), flowers slightly distant; male zone elongate, slightly fusiform, 2.5-7.5 cm long, 1-2.8 cm in diam., flowers congested, with or without scattered hair-like staminodes in between the functional flowers; appendix elongate fusiform-conic, acute, 10-79 cm long, 0.8-2.5 cm in diam., smooth or with scattered, hair-like staminodes, glossy dark purple. Ovary depressed, lower half sunken in pocket in spadix-axis, elliptical in cross-section, l.5 (short axis)-3 (long axis) mm in diam., 2 mm high, base white or pale green, apex dark purple, bilocular; style long, thin, 3.5-4 mm long, 0.8-1 mm in diam., dark purple; stigma large, 2 mm in diam., 2 mm high, laterally depressed and apex depressed, very shallowly bi-lobed, lobes rounded, surface densely scabrate, white or dirty pale brown. Male flowers consisting of (2-)3-5 stamens; stamens 1.5 mm long; filaments 0.5 mm long, connate, whitish; anthers truncate, ca. 1.5 mm in diam., ca. 1 mm long, glossy dark purple, connective with a longitudinal groove. Staminodes hair-like, to ca. 1 cm long, dark purple. Infructescence with fruiting part cylindric, 15 cm long, 4 cm in diam., berries crowded. Berries globose or laterally depressed, ca. 1 cm long, 0.7-1 cm in diam., yellow. Pollen psilate.

    Habitat

    In partly open, disturbed margins of degraded, mixed evergreen and deciduous seasonal hardwood forest. Indigenous names-

    gah buk.

    Distribution

    Amorphophallus laoticus Hett. appears in other Kew resources:

    First published in Aroideana 29: 62 (2006)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    Sources

    CATE Araceae
    Haigh, A., Clark, B., Reynolds, L., Mayo, S.J., Croat, T.B., Lay, L., Boyce, P.C., Mora, M., Bogner, J., Sellaro, M., Wong, S.Y., Kostelac, C., Grayum, M.H., Keating, R.C., Ruckert, G., Naylor, M.F. and Hay, A., CATE Araceae, 17 Dec 2011.
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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