1. Family: Poaceae Barnhart
    1. Genus: Sorghum Moench
      1. Sorghum brachypodum Lazarides

        This species is accepted, and its native range is N. Northern Territory.

    [GB]
    Habit
    Annual. Culms 100-250 cm long; 2.6-7 mm diam.; 4-6 -noded; without nodal roots. Culm-internodes glaucous; distally pruinose, or glabrous. Culm-nodes glabrous. Ligule an eciliate membrane; 1-2 mm long; scaberulous on abaxial surface. Leaf-blades curled; 4-8 mm wide. Leaf-blade surface smooth, or scaberulous; rough adaxially; glabrous, or pilose (rarely); with tubercle-based hairs.
    Inflorescences
    Inflorescence a panicle with branches tipped by a raceme. Panicle open; loose; 13-30 cm long; 3-5 cm wide. Primary panicle branches 3-8 -nate; simple; 2-5 cm long. Panicle axis smooth; glabrous. Panicle branches pilose; hairy brown at tip; with prominent pulvini. Racemes 2-3.5 cm long; bearing a triad of spikelets; bearing 1 fertile spikelets on each. Rhachis obsolete. Spikelets in threes. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 2 in the cluster. Pedicels filiform; flattened; 6-9 mm long; ciliate.
    Spikelets
    Companion sterile spikelets well-developed; containing empty lemmas, or male; lanceolate; dorsally compressed; 12-20 mm long; as long as fertile; separately deciduous. Companion sterile spikelet glumes membranous, or cartilaginous; 7-10 -veined; glabrous, or pubescent; emarginate, or obtuse; mucronate. Companion sterile spikelet lemmas enclosed by glumes. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; dorsally compressed; 12.5-18 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus cuneate; 5-10 mm long; base pungent.
    Sterile
    Companion sterile spikelets well-developed; containing empty lemmas, or male; lanceolate; dorsally compressed; 12-20 mm long; as long as fertile; separately deciduous. Companion sterile spikelet glumes membranous, or cartilaginous; 7-10 -veined; glabrous, or pubescent; emarginate, or obtuse; mucronate. Companion sterile spikelet lemmas enclosed by glumes.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; dorsally compressed; 12.5-18 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus cuneate; 5-10 mm long; base pungent.
    Glume
    Glumes dissimilar; with lower wider than upper; exceeding apex of florets; firmer than fertile lemma; shiny. Lower glume ovate; 1 length of spikelet; coriaceous; much thinner above; 2-keeled; keeled above; winged on keel; winged narrowly; winged above; 8 -veined. Lower glume lateral veins with cross-veins. Lower glume surface glabrous. Lower glume margins ciliate. Lower glume apex dentate; 3 -fid. Upper glume ovate; coriaceous; much thinner above; without keels; 7 -veined. Upper glume margins eciliate, or ciliate.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; hyaline; 2 -veined; acute. Fertile lemma ovate; hyaline; 1 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 65-130 mm long overall; with twisted column. Column of lemma awn ciliate. Palea absent or minute.
    Flowers
    Lodicules 2; oblong; 0.6-1 mm long; fleshy; ciliate. Anthers 3; 5-9 mm long. Stigmas 2. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid, or obovoid; isodiametric; 5-6 mm long; truncate, or obtuse.
    Distribution
    Australasia: Australia.
    Reference
    Andropogoneae. Lazarides 1993.

    Distribution

    Native to:

    Northern Territory

    Sorghum brachypodum Lazarides appears in other Kew resources:

    First published in Austral. Syst. Bot. 4: 608 (1991)

    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.

    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