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  1. Family: Poaceae Barnhart
    1. Genus: Semiarundinaria Makino ex Nakai
      1. Semiarundinaria fortis Koidz.

        This species is accepted, and its native range is Japan (N. & Central Kyushu).

    [GB]
    Habit
    Perennial. Rhizomes elongated; leptomorph. Culms erect; 600-800 cm long; woody. Culm-internodes terete; thin-walled; distally pubescent; with reflexed hairs. Culm-nodes pubescent. Lateral branches dendroid. Branch complement three, or several; in a horizontal line. Culm-sheaths coriaceous; puberulous; with reflexed hairs; without auricles. Leaves cauline; 3-4 per branch. Leaf-sheaths puberulous. Leaf-sheath oral hairs setose. Ligule a ciliolate membrane; 0.5-1.5 mm long; truncate. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate, or elliptic; 18-25 cm long; 30-45 mm wide. Leaf-blade surface glabrous; hairless except near base. Leaf-blade apex acuminate.
    Inflorescences
    Synflorescence bractiferous; fasciculate; with spathaceous subtending bracts; bracts 30-40 mm long; without axillary buds at base of spikelet; with ultimate bract subtending a compact bracteolate fascicle of spikelets; prophyllate below lateral spikelets. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 30-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 7-9 mm long; sparsely hairy.
    Fertile
    Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 30-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 7-9 mm long; sparsely hairy.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume ovate; 1 length of upper glume; chartaceous; without keels. Lower glume apex acute. Upper glume ovate; 5-7 mm long; chartaceous; without keels. Upper glume apex acute.
    Florets
    Fertile lemma ovate; 10-17 mm long; chartaceous; without keel; 13 -veined. Lemma lateral veins with cross-veins. Lemma surface scabrous. Lemma apex acuminate. Palea 1 length of lemma; coriaceous; 11-13 -veined. Palea keels ciliolate. Palea apex with excurrent keel veins. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 3; lanceolate; 4 mm long; veined; ciliate. Anthers 3; 9 mm long. Stigmas 3.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Asia-temperate: eastern Asia.
    Reference
    Bambuseae. Index Jap. Bam. 2001.

    Distribution

    Other Data

    Semiarundinaria fortis Koidz. appears in other Kew resources:

    Bibliography

    First published in Acta Phytotax. Geobot. 10: 63 (1941)

    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.
    • Ohrnberger, D. (1999). The bamboos of the world : annotated nomenclature and literature of the species and the higher and lower taxa: 1-585. Elsevier, Amsterdam.

    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