1. Family: Poaceae Barnhart
    1. Genus: Thamnocalamus Munro
      1. Thamnocalamus spathiflorus (Trin.) Munro

        This species is accepted, and its native range is Himalaya to Tibet.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 400-700 cm long; 20-25 mm diam.; woody. Culm-internodes terete; thin-walled; glaucous; distally pruinose. Lateral branches dendroid. Branch complement several; in a horizontal line; with subequal branches; thinner than stem. Culm-sheaths deciduous; coriaceous; glabrous; without auricles; ciliate on shoulders. Culm-sheath ligule 1 mm high; ciliate. Leaf-sheath oral hairs setose; dark. Ligule a ciliolate membrane; scarious. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 9-13 cm long; 10-13 mm wide. Leaf-blade venation with distinct cross veins.
    Inflorescences
    Synflorescence bractiferous; fasciculate; 10-15 cm long; with spathaceous subtending bracts; bracts 50-70 mm long; without axillary buds at base of spikelet; with ultimate bract subtending a compact bracteolate fascicle of spikelets. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 30-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes eventually visible between lemmas.
    Fertile
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 30-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes eventually visible between lemmas.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 15-25 mm long; 1 length of upper glume; chartaceous; without keels; 9 -veined. Lower glume apex acuminate. Upper glume lanceolate; 15-25 mm long; 1.2-1.6 length of adjacent fertile lemma; chartaceous; without keels; 9 -veined. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate; 12-15 mm long; chartaceous; without keel; 13-15 -veined. Lemma surface asperulous. Lemma apex attenuate; awned; 1 -awned. Principal lemma awn 3-4 mm long overall. Palea 4 -veined. Palea keels scabrous; adorned above. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 3; lanceolate. Anthers 3. Stigmas 3.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Asia-temperate: China. Asia-tropical: India.
    Reference
    Bambuseae. WDC.

    Images

    Distribution

    Native to:

    East Himalaya, Nepal, Tibet, West Himalaya

    Introduced into:

    Great Britain

    Thamnocalamus spathiflorus (Trin.) Munro appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Feb 16, 1987 Wallich, N. [s.n.], Nepal K000872522 lectotype
    Jan 1, 1868 Gammie, G.A. [s.n.], India K000710253 lectotype
    Jan 1, 1868 Gammie, G.A. [s.n.], India K000710254 lectotype
    Jan 1, 1868 Gammie, G.A. [s.n.], India K000246145 lectotype
    Jan 1, 1868 Gammie, G.A. [s.n.], India K000246146 lectotype
    Jan 1, 1868 Wallich, N. [5041], Nepal K000246148 lectotype
    Jan 1, 1868 Wallich, N. [5041], Nepal K000246149 lectotype
    Renvoize, S.A. [1990], Great Britain K000795273
    Jan 1, 1994 Gamble., J.S. [24341], India Thamnocalamus spathiflorus subsp. occidentalis K000246150 holotype
    Jan 1, 1994 Gamble., J.S. [24341], India Thamnocalamus spathiflorus subsp. occidentalis K000246151 holotype
    Jan 1, 1994 Gamble., J.S. [24341], India Thamnocalamus spathiflorus subsp. occidentalis K000246152 holotype
    Jan 1, 1994 Gamble., J.S. [24341], India Thamnocalamus spathiflorus subsp. occidentalis K000246153 holotype

    First published in Trans. Linn. Soc. London 26: 34 (1868)

    Accepted by

    • 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.
    • 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.

    Literature

    Kew Backbone Distributions
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • 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.

    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