1. Family: Poaceae Barnhart
    1. Genus: Isachne R.Br.
      1. Isachne commelinifolia Warb.

        This species is accepted, and its native range is SE. China to Nansei-shoto and Indo-China.

    [GB]
    Habit
    Annual, or perennial; short-lived. Stolons present. Culms prostrate; 10-25 cm long; rooting from lower nodes. Culm-nodes pubescent. Leaf-sheaths glabrous on surface, or hispid; outer margin hairy. Ligule a fringe of hairs; 1-2 mm long. Leaf-blades lanceolate; 5-7 cm long; 10-18 mm wide. Leaf-blade surface glabrous, or pilose; sparsely hairy; hairy adaxially. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic, or ovate; 3-5.5 cm long. Primary panicle branches ascending, or spreading. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2.1-2.4 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2.1-2.4 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes deciduous; similar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 1 length of spikelet; membranous; without keels; 7-9 -veined. Lower glume surface hispidulous. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 9-11 -veined. Upper glume surface hispidulous. Upper glume apex acute.
    Florets
    Fertile lemma ovate, or orbicular; coriaceous; without keel. Lemma margins involute; pubescent. Lemma apex obtuse. Palea coriaceous. Palea surface puberulous (upper floret).
    Distribution
    Asia-temperate: China and eastern Asia.
    Reference
    Isachneae. Fl China 2007.

    Distribution

    Native to:

    China Southeast, Hainan, India, Myanmar, Nansei-shoto, Sri Lanka, Taiwan, Vietnam

    Isachne commelinifolia Warb. appears in other Kew resources:

    First published in Repert. Spec. Nov. Regni Veg. 16: 352 (1920)

    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 Isachne myosotis.]

    Literature

    Kew Backbone Distributions
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • H?, P.-H. (2000). Câyc? Vi?tnam. An Illustrated flora of Vietnam, ed. 2, 3: 1-1020. Pham-hoang Ho, Montréal.
    • 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.
    • Walker, E.H. (1976). Flora of Okinawa and the southern Ryukyu islands: 1-1159. Smithsonian Institution Press, Washington D.C., U.S.A.
    • Gilliland, H.B. (1971). A revised flora of Malaya 3: 1-319. The Royal Botanic Gardens, Singapore.

    Sources

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