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

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


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


    Thailand. Endemic.

    General Description

    Tuber elongate, 15 × ca 3 cm, unbranched. Leaf solitary; petiole 40–120 cm × 8–10 mm, blackish or blackish green with scattered, irregular, pale greyish or dirty dark green spots, often with a paler margin; leaf blade ca 30 cm diam., rachises narrowly winged nearly to the base; leaflets obovate, elliptic-oval or elliptic, acute or acuminate, 13–30 × 6–15 cm, adaxially velvety green, venation impressed. Inflorescence long pedunculate; peduncle 20–100 cm × 3–16 mm, smooth, basal half a little roughish owing to raised, hemispherical epidermal cells, dirty dark greyish green, paler towards the apex, with scattered dirty greyish ovate-elliptic spots with jagged margins and/or numerous, tiny, dark blackish green spots all over, and/or small whitish spots all over, spots decreasing in number towards the apex; spathe erect, lanceolate or narrowly elongate-triangular, 5–22 × 2.5–9 cm, apex acute, base shortly convolute but opening narrowly to the base at staminate anthesis, separated from the limb by a very faint constriction, persistent in fruit, exterior base dull greyish, or dull greyish green to greyish purplish with a few scattered, very faint paler greyish spots or darker minute dots, interior base dirty pale whitish greenish, the ventral side with or without a purple flush, margins with or without a pale purple flush and with or without numerous small, orbicular spots, limb exterior dull dark brown or dark green, with or without a central greyish longitudinal band, limb interior dark brownish, paler at the centre, or dull brownish purple with green margins, always with a few scattered, orbicular, pale whitish greenish spots, base within smooth, or shallowly ridged, in between ridges very shallowly verrucate; spadix subsessile, longer than spathe, 10–39 cm long, slightly sigmoid; pistillate flower zone cylindrical, 5–25 × 4–16 mm, flowers congested or slightly distant, with 4–6 staminodes at the base; ovaries depressed globose, 2 mm in diam., 1.5 mm long, circular or oval in cross-section, bright pale green; style shortly conical, 0.8 mm (base)-0.4 mm (apex) in diam., bright pale green, sometimes with purplish spots or flushes; stigma large, shallowly or deeply bilobed, 1–1.5 × 1–1.5 mm, oval in cross-section, surface verruculate, dirty orangeish but purplish at the base, or entirely creamy, lobes conical, acute; staminate flower zone elongate, cylindrical or slightly obconical, 1.5–5 cm × 5–15 mm, flowers in lower half slightly distant, in upper half more congested, or in slightly separated semispirals, or all slightly distant, sometimes with several pistillodes/staminodes in the lower part; staminate flowers consisting of (1–)2–4 stamens; anthers sessile, depressed, 0.8 mm long, 1.0–1.5 mm in diam., subquadrangular in cross-section, truncate, white, connective with a greyish spot, pores apical, oval at anthesis; sterile interstice between staminate and pistillate flower zones lacking or to ca 4 mm long, staminodes in separate groups of 3–10; staminodes between the pistillate flowers with a shortly stalked, fusiform base, ca 1 mm long, the apex drawn out in a long hair-like part, ca 4 mm long, white; those in the sterile interstice with a variably sized depressed globose base, sometimes showing the shape of reduced thecae, including pores, 0.5–1 × ca 0.3–0.4 mm, hair-like extension 2–6 mm long, white; appendix more or less thin, elongate conical, acute, 7.5–32.5 × 1–2 cm at the base, base slightly rugulose and sometimes with a few scattered hair-like staminodes, upwards more shallowly rugulose, dirty dark olive-green to nearly black, or the base whitish to greenish and the upper part brown or pale dirty greyish green. Infructescence cylindrical, 5 cm long, 2 cm, in diam. dried staminodes remaining. Fruits globose or slightly elliptic, ca 10 × 7–11 mm, ripening glossy white.


    Dry savannah forest. Ca 150 m asl.


    Native to:


    Amorphophallus aberrans Hett. appears in other Kew resources:

    First published in Blumea 39: 237 (1994)

    Accepted by

    • Boyce, P.C., Sookchaloem, D., Hetterscheid, W.L.A., Gusman, G., Jacobsen, N., Idei, T. & Nguyen, V.D. (2012). Flora of Thailand 11(2): 101-325. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok.
    • Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.


    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.

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. 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 2020. 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