1. Family: Poaceae Barnhart
    1. Genus: Cenchrus L.
      1. Cenchrus henryanus (F.Br.) M.W.Tornab. & W.L.Wagner

        This species is accepted, and its native range is Marquesas.

    [GB]
    Habit
    Perennial; caespitose. Culms decumbent; 30-60 cm long. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 0.1 mm long. Leaf-blades 20-40 cm long; 10 mm wide. Leaf-blade surface glabrous. Leaf-blade margins spinulose.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform; linear; 10-13 cm long; 2-3 cm wide. Primary panicle branches accrescent to a central axis; with sessile scars on axis. Panicle axis with rounded ribs; puberulous; bearing deciduous spikelet clusters. Spikelets subtended by an involucre. Fertile spikelets 1 in the cluster. Involucre composed of bristles; 18-25 mm long; base bluntly stipitate; base 0.5 mm long. Involucral bristles deciduous with the fertile spikelets; numerous; with longest bristle scarcely emergent; 18-25 mm long; terete; flexible; antrorsely scaberulous; glabrous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 4-6 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; 4-6 mm long; falling entire; deciduous with accessory branch structures.
    Glume
    Glumes shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 2 mm long; 0.5 length of spikelet; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface puberulous. Lower glume margins ciliate. Lower glume apex acute. Upper glume ovate; 3 mm long; 0.75 length of spikelet; membranous; without keels; 3 -veined. Upper glume surface puberulous. Upper glume margins ciliate. Upper glume apex obtuse.
    Florets
    Basal sterile florets male, or barren; without significant palea. Lemma of lower sterile floret oblong; 4 mm long; 1 length of spikelet; membranous; 5 -veined; obtuse. Fertile lemma ovate; 4 mm long; membranous; without keel; 5 -veined. Lemma margins flat. Lemma apex acuminate. Palea 1 length of lemma; membranous.
    Flowers
    Lodicules absent. Anthers 3.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Pacific: south-central.
    Reference
    Paniceae. Brown 1994.

    Distribution

    Native to:

    Marquesas

    Cenchrus henryanus (F.Br.) M.W.Tornab. & W.L.Wagner appears in other Kew resources:

    First published in PhytoKeys 28: 4 (2013)

    Literature

    Kew Backbone Distributions
    • Clayton, W.D. & Snow, N. (2010). A key to Pacific Grasses: 1-107. Kew Publishing, Royal Botanic Gardens, Kew.

    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