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

        This species is accepted, and its native range is N. Western Australia to N. & N. Central Northern Territory.

    [GB]
    Habit
    Perennial; caespitose; clumped densely. Butt sheaths glabrous, or pubescent, or pilose. Culms robust; 130-250 cm long; 3-7 mm diam.; 4-7 -noded; without nodal roots. Culm-internodes distally pruinose, or glabrous. Culm-nodes pubescent, or bearded. Leaf-sheaths outer margin glabrous, or hairy. Leaf-sheath oral hairs lacking, or bearded. Ligule an eciliate membrane; 2.6-3.7 mm long; pubescent on abaxial surface. Leaf-blades 7-14 mm wide. Leaf-blade surface glabrous to hirsute; with tubercle-based hairs.
    Inflorescences
    Inflorescence a panicle with branches tipped by a raceme. Panicle open; dense; 30-40 cm long; 2.5-5 cm wide. Primary panicle branches sparsely divided; 3-7.5 cm long. Panicle axis smooth. Panicle branches terete, or flat; smooth, or scaberulous; rough distally; glabrous, or villous; hairy at tip; glabrous in axils, or pubescent in axils. Racemes bearing few fertile spikelets; 2-4 fertile spikelets on each. Rhachis fragile at the nodes; ciliate on margins. Rhachis internodes linear. Rhachis internode tip oblique. Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels filiform; flattened; 5.5-7 mm long; ciliate.
    Spikelets
    Companion sterile spikelets well-developed; containing empty lemmas, or male; linear; dorsally compressed; 10-13 mm long; shorter than fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; pubescent, or pilose; ciliate on margins; muticous. Companion sterile spikelet lemmas enclosed by glumes. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 11-15 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus cuneate; straight, or curved; 3-6 mm long; base pungent.
    Sterile
    Companion sterile spikelets well-developed; containing empty lemmas, or male; linear; dorsally compressed; 10-13 mm long; shorter than fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; pubescent, or pilose; ciliate on margins; muticous. Companion sterile spikelet lemmas enclosed by glumes.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 11-15 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus cuneate; straight, or curved; 3-6 mm long; base pungent.
    Glume
    Glumes dissimilar; with lower wider than upper; exceeding apex of florets; firmer than fertile lemma. Lower glume ovate; 1 length of spikelet; coriaceous; much thinner above; without keels; keel-less except near apex; 7-9 -veined. Lower glume lateral veins without connecting veins, or with cross-veins. Lower glume surface pubescent, or pilose; with tubercle-based hairs. Upper glume ovate; coriaceous; much thinner above; without keels; 7-9 -veined. Upper glume lateral veins without cross-veins, or with cross-veins. Upper glume surface pubescent, or pilose; with tubercle-based hairs.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; hyaline; 2 -veined; acute. Fertile lemma oblong; hyaline; 1 -veined. Lemma apex lobed; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 50-92 mm long overall; with twisted column. Column of lemma awn glabrous. Palea absent or minute.
    Flowers
    Lodicules 2; oblong; 0.6-1 mm long; fleshy; ciliate; hairy across the apex. Anthers 3; 4.2 mm long. Stigmas 2. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp; obovoid; 3.5-4.5 mm long; truncate.
    Distribution
    Australasia: Australia.
    Reference
    Andropogoneae. Lazarides 1993.

    Distribution

    Native to:

    Northern Territory, Western Australia

    Sorghum interjectum Lazarides appears in other Kew resources:

    First published in Austral. Syst. Bot. 4: 616 (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