1. Family: Poaceae Barnhart
    1. Genus: Cenchrus L.
      1. Cenchrus longissimus (S.L.Chen & Y.X.Jin) Morrone

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

    [GB]
    Habit
    Perennial. Culms erect, or geniculately ascending; 80-180 cm long; 8-14 -noded. Leaf-sheaths longer than adjacent culm internode; glabrous on surface; outer margin glabrous, or hairy. Ligule a fringe of hairs; 2-3 mm long. Leaf-blades flat; 30-90 cm long; 5-20 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform; linear; 15-30 cm long; 2-3 cm wide. Primary panicle branches accrescent to a central axis; with lateral stumps on axis. Panicle axis retrorsely scabrous; bearing deciduous spikelet clusters. Spikelets subtended by an involucre. Fertile spikelets sessile; 1-3 in the cluster. Involucre composed of bristles; 15-40 mm long; base obtuse. Involucral bristles deciduous with the fertile spikelets; numerous; 15-40 mm long; terete; flexible; antrorsely scaberulous; glabrous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 6-8 mm long; falling entire; deciduous with accessory branch structures.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 6-8 mm long; falling entire; deciduous with accessory branch structures.
    Glume
    Glumes shorter than spikelet; thinner than fertile lemma. Lower glume oblong; 2 mm long; 0.25-0.33 length of spikelet; membranous; without keels; 0-1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 4 mm long; 0.5-0.66 length of spikelet; membranous; without keels; 1-5 -veined. Upper glume lateral veins absent, or distinct. Upper glume apex acuminate.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret elliptic; 1 length of spikelet; chartaceous; 5-7 -veined; acuminate. Fertile lemma lanceolate; 6-8 mm long; cartilaginous; without keel; 5-7 -veined. Lemma margins flat. Lemma apex acuminate. Palea cartilaginous.
    Flowers
    Anthers 3; anther tip smooth.
    Distribution
    Asia-temperate: China.
    Reference
    Paniceae. Chen & Jin 1996.

    Distribution

    Native to:

    China North-Central, China South-Central

    Cenchrus longissimus (S.L.Chen & Y.X.Jin) Morrone appears in other Kew resources:

    First published in Ann. Bot. (Oxford) 106: 128 (2010)

    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 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