1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum flexuosum Retz.

        This species is accepted, and its native range is Tropical & Subtropical Asia.

    [GB]
    Habit
    Annual. Culms erect; 30-100 cm long. Culm-nodes glabrous. Lateral branches sparse, or ample. Leaf-sheaths glabrous on surface. Ligule a ciliate membrane; 0.6-1.1 mm long. Collar glabrous. Leaf-blade base broadly rounded. Leaf-blades 10-40 cm long; 5-15 mm wide. Leaf-blade surface glabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; oblong; nodding; 5-40 cm long; 1-5 cm wide. Primary panicle branches appressed; 3-15 cm long. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; acute; 2.5-3.5 mm long; persistent on plant.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; acute; 2.5-3.5 mm long; persistent on plant.
    Glume
    Glumes reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.7-1.2 mm long; 0.25-0.33 length of spikelet; membranous; without keels; 1-3 -veined. Lower glume lateral veins absent, or obscure. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 11-15 -veined. Upper glume apex acute.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 9-13 -veined; acute. Palea of lower sterile floret 0.9 length of lemma. Fertile lemma elliptic; dorsally compressed; 2.2-2.5 mm long; indurate; dark brown; shiny; without keel. Lemma margins involute. Lemma apex acute. Palea involute; indurate.
    Flowers
    Anthers 3; 1.5 mm long.
    Fruits
    Caryopsis with adherent pericarp; 1.8-1.9 mm long.
    Distribution
    Asia-temperate: Caucasus, China, and eastern Asia. Asia-tropical: India, Indo-China, and Malesia.
    Reference
    Paniceae. Fl Ceyl 1993.

    Images

    Distribution

    Native to:

    Assam, Bangladesh, China South-Central, East Himalaya, India, Japan, Jawa, Lesser Sunda Is., Malaya, Myanmar, Nepal, Nicobar Is., Pakistan, Philippines, Sri Lanka, Sulawesi, Sumatera, Taiwan, Thailand, Tibet, Vietnam, West Himalaya

    Introduced into:

    Maryland, Transcaucasus

    Panicum flexuosum Retz. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Rottler, J. P. [s.n.], India Panicum sumatrense K000245239
    Nov 1, 1929 Koenig, J. G. [s.n.], India Panicum psilopodium K000674359

    First published in Observ. Bot. 3: 9 (1783)

    Not accepted by

    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew. [Cited as Panicum sumatrense.]

    Literature

    Kew Backbone Distributions
    • Kandwal, M.K. & Gupta, B.K. (2009). An update on grass flora of Uttarkhand Indian Journal of Forestry 32: 657-668.
    • Ahmed, Z.U. (ed.) (2008). Encyclopedia of Flora and Fauna of Bangladesh 12: 1-505. Asiatic Society of Bangladesh.
    • Pandey, R.P. & Dilwakar, P.G. (2008). An integrated check-list flora of Andaman and Nicobar islands, India Journal of Economic and Taxonomic Botany 32: 403-500.
    • Datta, B.K., Saha, R. Roy, M. & Majumder, K. (2008). Grasses of West Tripura district, Tripura, India Pleione 2: 98-105.
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • Takhtajan, A.L. (ed.) (2006). Conspectus Florae Caucasi 2: 1-466. Editio Universitatis Petropolitanae.
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.
    • Noltie, H.J. (2000). Flora of Bhutan 3(2): 457-883. Royal Botanic Gardens, Edinburgh.
    • H?, P.-H. (2000). Câyc? Vi?tnam. An Illustrated flora of Vietnam, ed. 2, 3: 1-1020. Pham-hoang Ho, Montréal.
    • 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.
    • Koyama, T. (1987). Grasses of Japan and its neighboring regions: an identification manual: 1-570. Kodansha, Tokyo, Japan.
    • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.

    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 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