1. Family: Poaceae Barnhart
    1. Genus: Microstegium Nees
      1. Microstegium vimineum (Trin.) A.Camus

        This species is accepted, and its native range is Pakistan to Japan and Jawa.

    [GB]
    Habit
    Annual; mat forming. Culms decumbent; 10-30 cm long; rooting from lower nodes. Culm-nodes glabrous, or pubescent. Leaf-sheaths outer margin hairy. Ligule an eciliate membrane. Leaf-blades elliptic, or oblong; 5-10 cm long; 7-15 mm wide. Leaf-blade surface pubescent; hairy on both sides. Leaf-blade margins scabrous. Leaf-blade apex acute, or acuminate.
    Inflorescences
    Inflorescence composed of racemes. Peduncle pilose above. Racemes 1-5; single, or paired, or digitate; spreading, or erect; 3-5 cm long. Central inflorescence axis 0-2.5 cm long. Rhachis fragile at the nodes; flattened; ciliate on margins. Rhachis internodes linear; 4-5 mm long. Spikelets in pairs. Fertile spikelets sessile and pedicelled; 2 in the cluster. Pedicels linear; flattened; 3.5-4.5 mm long; ciliate.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 5.5-6.5 mm long; falling entire; deciduous from the base, or with accessory branch structures. Spikelet callus base obtuse; attached transversely.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 5.5-6.5 mm long; falling entire; deciduous from the base, or with accessory branch structures. Spikelet callus base obtuse; attached transversely.
    Glume
    Glumes dissimilar; firmer than fertile lemma. Lower glume elliptic; 1 length of spikelet; coriaceous; 2-keeled; keeled obtusely; 4 -veined. Lower glume primary vein scabrous. Lower glume lateral veins with cross-veins. Lower glume surface with a longitudinal median groove; glabrous. Lower glume apex obtuse. Upper glume elliptic; 1-keeled; 3-7 -veined. Upper glume primary vein scabrous. Upper glume muticous.
    Florets
    Basal sterile florets with vestigial lower floret, or developed; barren; without significant palea. Lemma of lower sterile floret oblong; 3.5 mm long; hyaline. Fertile lemma linear; 1-1.5 mm long; hyaline; without keel. Lemma apex dentate; 2 -fid; mucronate. Palea 1 length of lemma; hyaline.
    Flowers
    Lodicules 2. Anthers 3; 0.3-0.5 mm long.
    Fruits
    Caryopsis with adherent pericarp; fusiform; 2 mm long. Embryo 0.25 length of caryopsis. Hilum punctiform.
    Distribution
    Africa: west-central tropical. Asia-temperate: Soviet far east, Caucasus, western Asia, China, and eastern Asia. Asia-tropical: India, Indo-China, and Malesia. North America: northeast USA and southeast .
    Reference
    Andropogoneae. Bor.
    [FWTA]

    Gramineae, W. D. Clayton. Flora of West Tropical Africa 3:2. 1972

    Habit
    Creeping annual.
    Note
    Asiatic specimens have glabrous or sparsely pubescent foliage, but are otherwise similar.

    Images

    Distribution

    Native to:

    Assam, China North-Central, China South-Central, China Southeast, East Himalaya, Japan, Jawa, Korea, Laos, Lesser Sunda Is., Manchuria, Myanmar, Nansei-shoto, Nepal, Philippines, Primorye, Sumatera, Taiwan, Thailand, Vietnam, West Himalaya

    Introduced into:

    Alabama, Arkansas, Cameroon, Congo, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Iran, Kentucky, Louisiana, Maryland, Masachusettes, Mississippi, Missouri, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Puerto Rico, South Carolina, Tennessee, Texas, Transcaucasus, Turkey, Virginia, West Virginia, Zaïre

    Microstegium vimineum (Trin.) A.Camus appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Scaetta [1613], Zaire K000280771 isotype
    Wallich, N. [8832], Nepal K000245600 isotype
    Wallich, N. [8838], Nepal K000245720 isosyntype
    Wallich, N. [s.n.], Nepal K000943560
    Balansa, B. [1741], Vietnam K000943551

    First published in H.Lecomte, Fl. Indo-Chine 7: 260 (1922)

    Accepted by

    • Chang, C.S., Kim, H. & Chang, K.S. (2014). Provisional checklist of vascular plants for the Korea peninsula flora (KPF): 1-660. DESIGNPOST.
    • Chen, C.H., Veldkamp, J.-F. & Kuoh, C.S. (2012). Taxonomic revision of Microstegium s.str. (Andropogoneae, Poaceae) Blumea 57: 160-189.
    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Kandwal, M.K. & Gupta, B.K. (2009). An update on grass flora of Uttarkhand Indian Journal of Forestry 32: 657-668.
    • 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.
    • 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.
    • Press, J.R. et al. (2000). Annotated Checklist of the Flowering Plants of Nepal: i-x, 1-430. Natural History Museum, London.
    • 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.
    • Walker, E.H. (1976). Flora of Okinawa and the southern Ryukyu islands: 1-1159. Smithsonian Institution Press, Washington D.C., U.S.A.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.

    Literature

    Flora of West Tropical Africa
    • in Ann. Soc. Linn. Lyon, n.s. 68: 201 (1921).
    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.
    • Kandwal, M.K. & Gupta, B.K. (2009). An update on grass flora of Uttarkhand Indian Journal of Forestry 32: 657-668.
    • Sarmah, K.K. & Borthakur, S.K. (2009). A checklist of angiospermic plants of Manas national park in Assam, India Pleione 3: 190-200.
    • 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.
    • Press, J.R. et al. (2000). Annotated Checklist of the Flowering Plants of Nepal: i-x, 1-430. Natural History Museum, London.
    • Lee, W.T. (1996). Lineamenta Florae Koreae: 1-1688. Soul T'ukpyolsi: Ak'ademi Sojok.
    • Kharkevich, S.S., Probatova, N.S. & Novikov, V.S. (1985). Sosudistye rasteniia sovetskogo Dal’nego Vostoka 1: 1-383. Izd-vo "Nauka," Leningradskoe otd-nie, Leningrad.
    • Walker, E.H. (1976). Flora of Okinawa and the southern Ryukyu islands: 1-1159. Smithsonian Institution Press, Washington D.C., U.S.A.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.

    Sources

    Flora of West Tropical Africa
    Flora of West Tropical Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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