1. Family: Araceae Juss.
    1. Pinellia Ten.

      1. This genus is accepted, and its native range is China to Temp. E. Asia.

    [CATE]

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

    General Description
    HABIT : seasonally dormant herbs, tuber subglobose. LEAVES : few. PETIOLE : sometimes bearing tubercles near base and at apex, sheath fairly long. BLADE : usually deeply trifid or trisect or pedatisect, rarely simply cordate, ovate or oblong; primary lateral veins of each lobe or division pinnate, forming submarginal collective vein, 1-2 distinct marginal veins also present, higher order venation reticulate. INFLORESCENCE : solitary, appearing with leaves. PEDUNCLE : shorter or longer than petiole. SPATHE : constricted between tube and blade, tube convolute, narrowly ellipsoid to ovate, persistent, almost closed within by a transverse septum, gaping at base ( P. tripartita), blade oblong-elliptic, boat-shaped, gaping, fornicate, green to purple. SPADIX : much longer than spathe, female zone adnate to spathe, separated from male zone by spathe septum and by short, free, naked part of spadix axis, male zone cylindric, short, terminal sterile appendix smooth, elongate-subulate, often sigmoid, long-exserted from spathe. FLOWERS : unisexual, perigone absent. MALE FLOWER : 1-androus, stamens sometimes united congenitally in pairs or groups of four, short, compressed laterally, anthers sessile, connective slender, thecae ellipsoid, dehiscing by apical slit. POLLEN : extruded in amorphous mass, inaperturate, spherical or subspheroidal, small to medium-sized (mean 25 µm., range 21-29 µm.), exine spinulose. FEMALE FLOWER : ovary ovoid, 1-locular, ovule 1, orthotropous, funicle very short, placenta basal, style attenuate, stigma small, hemispheric. BERRY : oblong-ovoid, green. SEED : obnapiform to ellipsoid, testa irregularly verrucose-rugulose or smooth, embryo axile, elongate or very small and subglobose, endosperm copious.
    Habitat
    temperate woodland and forest; geophytes, on ground or on rocks, also on grassy banks and in fields as a weed ( P. ternata).
    Diagnostic
    Seasonally dormant, tuberous geophytes; leaf blade trifid to trisect, sometimes cordate, submarginal collective vein present, fine venation reticulate; female zone of the spadix dorsally adnate to the spathe; spadix with a smooth, elongate terminal sterile appendix; spathe forming transverse partial septum between male and female zones; flowers unisexual, perigone absent; ovary 1-ovulate. Differs from Arisaema by adnation of female zone to spathe, presence of spathe transverse septum and flowers both sexes always present in spadix.
    Distribution
    China to Temp. E. Asia.

    Images

    Distribution

    Native to:

    China North-Central, China South-Central, China Southeast, Hainan, Inner Mongolia, Japan, Korea, Manchuria, Nansei-shoto, Taiwan

    Introduced into:

    Austria, California, District of Columbia, Germany, Maryland, Pennsylvania, West Virginia

    Pinellia Ten. appears in other Kew resources:

    First published in Atti Reale Accad. Sci., Sez. Soc. Reale Borbon. 4: 69 (1839)

    Accepted by

    • Zhu, G., Li, H. & Li, R. (2007). A synopsis and a new species of the E. Asian genus Pinellia (Araceae) Willdenowia 37: 503-522.
    • 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.

    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