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  1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum luzonense J.Presl

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

    [GB]
    Habit
    Annual. Culms geniculately ascending; 10-120 cm long; without nodal roots, or rooting from lower nodes. Culm-nodes pubescent. Leaf-sheaths without keel; hispid; with tubercle-based hairs; outer margin hairy. Ligule a fringe of hairs; 1.5-2 mm long. Collar pubescent. Leaf-blades linear, or lanceolate; 18-25 cm long; 6-15 mm wide. Leaf-blade surface glabrous to hirsute; hairy on both sides. Leaf-blade margins smooth, or scaberulous; tuberculate-ciliate; hairy at base. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 15-50 cm long. Primary panicle branches ascending, or spreading. Panicle branches smooth, or scaberulous; with scattered hairs, or glabrous; glabrous in axils, or pubescent in axils. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or oblong; dorsally compressed; 1.5-2.6 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or oblong; dorsally compressed; 1.5-2.6 mm long; falling entire.
    Glume
    Glumes dissimilar; shorter than spikelet, or reaching apex of florets; thinner than fertile lemma. Lower glume ovate; clasping; 0.5-1.1 mm long; 0.33-0.5 length of spikelet; membranous; without keels; 3-9 -veined. Lower glume apex obtuse, or acute. Upper glume ovate; 1.3-1.8 mm long; 0.8-1 length of spikelet; membranous; without keels; 7-9 -veined. Upper glume apex obtuse, or acute.
    Florets
    Basal sterile florets male, or barren; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1.5-2.6 mm long; 1 length of spikelet; membranous; 5-9 -veined; obtuse, or acute. Palea of lower sterile floret 1 length of lemma. Fertile lemma elliptic; dorsally compressed; 1.3-2.2 mm long; indurate; shiny; without keel; 5 -veined. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
    Flowers
    Anthers 3; 1 mm long.
    Fruits
    Caryopsis with adherent pericarp; obovoid; 1.4 mm long.
    Distribution
    Asia-temperate: China and eastern Asia. Asia-tropical: India, Indo-China, Malesia, and Papuasia. Australasia: Australia. Pacific: northwestern.
    Reference
    Paniceae. Fl Ceyl 1996.

    Images

    Distribution

    Native to:

    Andaman Is., Assam, Bangladesh, Borneo, Cambodia, Caroline Is., China South-Central, China Southeast, Hainan, Jawa, Laos, Malaya, Maluku, Marianas, Myanmar, New Guinea, Nicobar Is., Philippines, Solomon Is., Sri Lanka, Taiwan, Thailand, Vietnam

    Synonyms

    Other Data

    Panicum luzonense J.Presl appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Kerr, A.F.G. [7849], Thailand K000620818
    Kerr, A.F.G. [7849], Thailand K000620819
    Kerr, A.F.G. [19579], Thailand K000620820
    Kerr, A.F.G. [19579], Thailand K000620821
    Kerr, A.F.G. [4491], Thailand K000620825
    Kerr, A.F.G. [7295], Thailand K000620826
    Kerr, A.F.G. [16098], Thailand K000620828
    Kerr, A.F.G. [16098], Thailand K000620827
    Kerr, A.F.G. [19328], Thailand K000620829
    Kerr, A.F.G. [19328], Thailand K000620830
    Kerr, A.F.G. [19328], Thailand K000620831
    Kerr, A.F.G. [19675], Thailand K000620832
    Kerr, A.F.G. [19682], Thailand K000620833
    Larsen, K. [9864], Thailand K000682809
    Larsen, K. [2752], Thailand K000682810
    Larsen, K. [850], Thailand K000682811
    Larsen, K. [30759], Thailand K000682812
    Larsen, K. [31942], Thailand K000682813
    Smitinand, T. [2837], Thailand K000682816
    Smitinand, T. [5831], Thailand K000682817
    Put [36], Thailand K000620822
    Put [2162], Thailand K000620823
    Put [2162], Thailand K000620824
    Charoenphol, Ch. [3789], Thailand K000682814
    Godefroy [62], Cambodia K000290303 syntype
    den Hoed, G. [464], Thailand K000682807
    Floto, F. [7310], Thailand K000682815
    Snan [715], Thailand K000682808
    Thwaites, G. H. K. [3890], Sri Lanka K000245242
    Thwaites, G. H. K. [3890], Sri Lanka K000245241

    Bibliography

    First published in C.B.Presl, Reliq. Haenk. 1: 308 (1830)

    Accepted by

    • Clayton, W.D. & Snow, N. (2010). A key to Pacific Grasses: 1-107. Kew Publishing, Royal Botanic Gardens, Kew.
    • Newman, M., Ketphanh, S., Svengsuksa, B., Thomas, P., Sengdala, K., Lamxay, V. & Armstrong, K. (2007). A checklist of the vascular plants of Lao PDR: 1-394. Royal Botanic Gardens, Edinburgh.
    • 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.
    • Turner, I.M. (1995 publ. 1997). A catalogue of the Vascular Plants of Malaya Gardens' Bulletin Singapore 47(2): 347-655.

    Literature

    Kew Backbone Distributions

    • Clayton, W.D. & Snow, N. (2010). A key to Pacific Grasses: 1-107. Kew Publishing, Royal Botanic Gardens, Kew.
    • 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.
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • 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.
    • Gilliland, H.B. (1971). A revised flora of Malaya 3: 1-319. The Royal Botanic Gardens, Singapore.
    • Henty, E.E. (1969). A manual of the grasses of New Guinea: 1-215. Division of Botany, Dpt. of Forests, LAE, New Guinea.
    • Masamune, G. (1942). Enumeratio phanerogamarum Bornearum: 1-739. Taihoku, Formosa.
    • Camus, E.G. & Camus, A. in H. Lecomte (1922). Flore Générale de l'indo-Chine 1(3): 193-336.

    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