1. Family: Poaceae Barnhart
    1. Genus: Oligostachyum Z.P.Wang & G.H.Ye
      1. Oligostachyum sulcatum Z.P.Wang & G.H.Ye

        This species is accepted, and its native range is China (Fujian).

    [GB]
    Habit
    Perennial. Rhizomes elongated; leptomorph. Culms erect; 1000-1200 cm long; 40-62 mm diam.; woody. Culm-internodes terete; thin-walled; 37.5 cm long; distally mealy. Lateral branches dendroid; ascending. Branch complement three. Culm-sheaths coriaceous; green; hispid; hairy on margins; without auricles; glabrous on shoulders. Culm-sheath ligule 3.5 mm high; ciliolate. Culm-sheath blade lanceolate, or narrowly ovate; erect, or spreading. Leaves 3-5 per branch. Leaf-sheaths deciduous; 9-16 cm long; glabrous on surface. Leaf-sheath oral hairs lacking. Ligule a ciliolate membrane; 1-1.5 mm long. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate. Leaf-blade venation with distinct cross veins.
    Inflorescences
    Inflorescence composed of racemes; bracteate at pedicel base. Racemes bearing 2-3 fertile spikelets on each. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 10-15 mm long.
    Spikelets
    Spikelets comprising 3-7 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 15-37 mm long; 1.5-3 mm wide; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 3-7 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 15-37 mm long; 1.5-3 mm wide; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 3-5 mm long; chartaceous; without keels. Lower glume lateral veins obscure. Lower glume surface scabrous. Lower glume apex acute. Upper glume elliptic; 7-10 mm long; chartaceous; without keels; 9 -veined. Upper glume surface scabrous. Upper glume apex acute.
    Florets
    Fertile lemma 11-13 mm long; chartaceous; without keel; 9-15 -veined. Lemma lateral veins with cross-veins. Lemma surface scabrous. Lemma apex acuminate; mucronate. Palea 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 3. Anthers 3. Stigmas 3.
    Fruits
    Caryopsis with adherent pericarp; apex unappendaged.
    Distribution
    Asia-temperate: China.
    Reference
    Bambuseae. Wang & Ye 1996.

    Distribution

    Native to:

    China Southeast

    Oligostachyum sulcatum Z.P.Wang & G.H.Ye appears in other Kew resources:

    First published in J. Nanjing Univ., Nat. Sci. Ed. 1982(1): 96 (1982)

    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.

    Literature

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

    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