Skip to main content
  1. Family: Poaceae Barnhart
    1. Genus: Hygroryza Nees
      1. Hygroryza aristata (Retz.) Nees ex Wight & Arn.

        This species is accepted, and its native range is Indian Subcontinent to S. China and Ind-China, Taiwan.

    [GB]
    Habit
    Perennial. Stolons present. Culms prostrate; 5-20 cm long; spongy; rooting from lower nodes. Leaf-sheaths inflated; longer than adjacent culm internode. Ligule an eciliate membrane. Leaf-blade base cordate. Leaf-blades floating; elliptic, or oblong, or ovate; 2.5-5 cm long; 12-15 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle open; pyramidal; 3-5 cm long. Primary panicle branches whorled at lower nodes. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 6-7 mm long; falling entire. Floret callus elongated; 2-10 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 6-7 mm long; falling entire. Floret callus elongated; 2-10 mm long.
    Glume
    Glumes both absent or obscure.
    Florets
    Fertile lemma linear; 6-7 mm long; chartaceous; keeled; 5 -veined. Lemma midvein ciliate. Lemma margins ciliate. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn 5-10 mm long overall. Palea lanceolate; 1 length of lemma; chartaceous; 3 -veined; 1-keeled. Palea keels ciliate.
    Flowers
    Lodicules 2. Anthers 6.
    Distribution
    Asia-temperate: China and eastern Asia. Asia-tropical: India and Indo-China.
    Reference
    Oryzeae. Fl Cey.

    Images

    Distribution

    Native to:

    Assam, Bangladesh, Cambodia, China South-Central, China Southeast, Hainan, India, Laos, Myanmar, Nepal, Pakistan, Sri Lanka, Taiwan, Thailand, Vietnam

    Synonyms

    Other Data

    Hygroryza aristata (Retz.) Nees ex Wight & Arn. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Kerr, A.F.G. [3883], Thailand K000631603
    Kerr, A.F.G. [15119], Thailand K000631604
    Kerr, A.F.G. [15119], Thailand K000631605
    Sorensen, Th. [1827], Thailand K000682237
    Larsen, K. [10087a], Thailand K000682236
    De Silva, F. [Cat. no. 8638] K001131063
    s.coll. [Cat. no. 8638] K001131058
    s.coll. [Cat. no. 8638] K001131059
    s.coll. [Cat. no. 8638] K001131060
    s.coll. [Cat. no. 8638] K001131061
    s.coll. [Cat. no. 8638] K001131062
    s.coll. [Cat. no. 8638] K001131064

    Bibliography

    First published in Edinburgh New Philos. J. 15: 380 (1833)

    Accepted by

    • Ahmed, Z.U. (ed.) (2008). Encyclopedia of Flora and Fauna of Bangladesh 12: 1-505. Asiatic Society of Bangladesh.
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
    • Press, J.R. et al. (2000). Annotated Checklist of the Flowering Plants of Nepal: i-x, 1-430. Natural History Museum, London.
    • Dassanayake (ed.) (1994). A Revised Handbook to the Flora of Ceylon 8: 1-458. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • Cope, T.A. (1982). Flora of Pakistan 143: 1-678. Department of Botany, University of Karachi, Karachi.

    Literature

    Kew Backbone Distributions

    • Sarmah, K.K. & Borthakur, S.K. (2009). A checklist of angiospermic plants of Manas national park in Assam, India Pleione 3: 190-200.
    • Ahmed, Z.U. (ed.) (2008). Encyclopedia of Flora and Fauna of Bangladesh 12: 1-505. Asiatic Society of Bangladesh.
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • Press, J.R. et al. (2000). Annotated Checklist of the Flowering Plants of Nepal: i-x, 1-430. Natural History Museum, London.
    • Dassanayake (ed.) (1994). A Revised Handbook to the Flora of Ceylon 8: 1-458. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • Cope, T.A. (1982). Flora of Pakistan 143: 1-678. Department of Botany, University of Karachi, Karachi.

    Sources

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    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