1. Family: Poaceae Barnhart
    1. Genus: Microstegium Nees
      1. Microstegium dispar (Nees ex Steud.) A.Camus

        This species is accepted, and its native range is Jawa to Lesser Sunda Islands.

    [GB]
    Habit
    Annual. Culms prostrate; 60-150 cm long; rooting from lower nodes. Lateral branches ample. Leaf-sheaths glabrous on surface, or pilose. Ligule a ciliolate membrane. Leaf-blades spreading, or reflexed; linear, or lanceolate; 2-12 cm long; 3-10 mm wide. Leaf-blade surface glabrous, or pilose; hairy abaxially.
    Inflorescences
    Inflorescence composed of racemes. Racemes 2-5; digitate; ascending, or spreading; 3.5-7.5 cm long. Rhachis fragile at the nodes; ciliate on margins. Rhachis internodes linear; 3.25-4.75 mm long. Spikelets in pairs. Fertile spikelets sessile and pedicelled; 2 in the cluster. Pedicels linear; 2.5-3 mm long; ciliate.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 4.5-7 mm long; falling entire; deciduous from the base and with accessory branch structures. Spikelet callus pilose; base obtuse; attached transversely.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 4.5-7 mm long; falling entire; deciduous from the base and with accessory branch structures. Spikelet callus pilose; base obtuse; attached transversely.
    Glume
    Glumes dissimilar; firmer than fertile lemma. Lower glume elliptic; 1 length of spikelet; coriaceous; light green; 2-keeled; keeled obtusely; 6(-8) -veined. Lower glume surface concave; pilose; hairy below. Lower glume margins ciliate. Lower glume apex dentate; 2 -fid. Upper glume elliptic; 1-keeled; 3 -veined. Upper glume surface pilose; hairy below. Upper glume apex acute; muticous.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; 3.5-4.5 mm long; hyaline. Fertile lemma lanceolate; 2.5-3.5 mm long; hyaline; without keel; 0 -veined. Lemma surface pubescent. Lemma apex lobed; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 10-17 mm long overall; with twisted column. Palea absent or minute.
    Flowers
    Anthers 3.
    Distribution
    Asia-tropical: Malesia.
    Reference
    Andropogoneae. Fl Java 1997.

    Images

    Distribution

    Native to:

    Jawa, Lesser Sunda Is.

    Microstegium dispar (Nees ex Steud.) A.Camus appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Koorders, S.H. [40873], Jawa K000943553
    Koorders [43767], Jawa K000943552

    First published in Ann. Soc. Linn. Lyon, n.s., 68: 200 (1922)

    Accepted by

    • Chen, C.H., Veldkamp, J.-F. & Kuoh, C.S. (2012). Taxonomic revision of Microstegium s.str. (Andropogoneae, Poaceae) Blumea 57: 160-189.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Chen, C.H., Veldkamp, J.-F. & Kuoh, C.S. (2012). Taxonomic revision of Microstegium s.str. (Andropogoneae, Poaceae) Blumea 57: 160-189.

    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 2018. 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 2018. 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