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  1. Family: Poaceae Barnhart
    1. Genus: × Trisetopsotrichon Röser & A.Wölk
      1. × Trisetopsotrichon altius (Hitchc.) Röser & A.Wölk

        This species is accepted, and its native range is N. & Central China.

    [GB]
    Habit
    Perennial; caespitose. Culms erect; 100-120 cm long. Culm-internodes distally glabrous. Culm-nodes pubescent. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 0.5-1 mm long; truncate. Leaf-blades 3-5 mm wide. Leaf-blade surface pubescent.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 15 cm long. Primary panicle branches spreading; 2-4 cm long; bearing 1-3 fertile spikelets on each lower branch. Panicle axis with lower internodes 2-3 cm long; glabrous. Panicle branches flexuous; scabrous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 10 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pilose. Floret callus pilose.
    Fertile
    Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 10 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pilose. Floret callus pilose.
    Glume
    Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume elliptic; 5 mm long; 0.5 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume elliptic; 10 mm long; 1.1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 9 mm long; cartilaginous; without keel; 5-7 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; geniculate; 10 mm long overall; with twisted column. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp; hairy at apex. Hilum linear.
    Distribution
    Asia-temperate: China.
    Reference
    Aveneae. Hitchc 1995.

    Distribution

    Native to:

    China North-Central, China South-Central, Inner Mongolia, Manchuria, Qinghai

    Synonyms

    Other Data

    × Trisetopsotrichon altius (Hitchc.) Röser & A.Wölk appears in other Kew resources:

    Bibliography

    First published in Taxon 66: 38 (2017)

    Accepted by

    • Govaerts, R. (2019). World Checklist of Vascular Plants (WCVP 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