1. Family: Poaceae Barnhart
    1. Genus: Sorghum Moench
      1. Sorghum angustum S.T.Blake

        This species is accepted, and its native range is N. Queensland.

    [GB]
    Habit
    Annual. Culms erect; 50-100 cm long; 3-6 -noded; without nodal roots, or with prop roots. Culm-nodes bearded. Leaves cauline. Leaf-sheath oral hairs bearded. Ligule a ciliolate membrane; 0.6-1 mm long. Leaf-blades 8-46 cm long; 2-5.6 mm wide. Leaf-blade surface glabrous, or hirsute; with tubercle-based hairs. Leaf-blade apex attenuate; filiform.
    Inflorescences
    Inflorescence a panicle with branches tipped by a raceme. Panicle open; lanceolate; loose; 9.5-20 cm long. Primary panicle branches drooping; 1-2(-4) -nate; whorled at lower nodes; simple; 2-9 cm long. Panicle branches capillary; bearded in axils; with prominent pulvini. Racemes 1-2(-4) cm long; bearing few fertile spikelets; bearing 1-2(-4) fertile spikelets on each. Rhachis fragile at the nodes; ciliate on margins. Rhachis hairs white, or dark brown, or red. Rhachis internodes linear; 4-6 mm long. Rhachis internode tip oblique. Spikelets in pairs, or in threes. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster, or 2 in the cluster. Pedicels linear; ciliate.
    Spikelets
    Companion sterile spikelets represented by barren pedicels. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblanceolate; dorsally compressed; 10.7-13 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus linear; curved; 3.5-7 mm long; pilose; base pungent; attached obliquely. Spikelet callus hairs white, or red.
    Sterile
    Companion sterile spikelets represented by barren pedicels.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblanceolate; dorsally compressed; 10.7-13 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus linear; curved; 3.5-7 mm long; pilose; base pungent; attached obliquely. Spikelet callus hairs white, or red.
    Glume
    Glumes dissimilar; with lower wider than upper; exceeding apex of florets; firmer than fertile lemma; dull, or shiny. Lower glume elliptic; 1 length of spikelet; coriaceous; without keels; keel-less except near apex; 9-11 -veined. Lower glume surface glabrous, or hispid, or villous. Lower glume apex acute. Upper glume ovate; coriaceous; without keels; 7-9 -veined. Upper glume surface glabrous, or pilose.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 0.8 length of spikelet; hyaline; 2 -veined; ciliolate on margins. Fertile lemma oblong; 3.7-4.2 mm long; hyaline; 1 -veined. Lemma margins ciliate. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 37-85(-114) mm long overall; with twisted column. Column of lemma awn pubescent; hairy on the spiral. Palea absent or minute.
    Flowers
    Lodicules 2; ciliate. Anthers 3; 2.5 mm long.
    Fruits
    Caryopsis with adherent pericarp; oblong; 3.3 mm long.
    Distribution
    Australasia: Australia.
    Reference
    Andropogoneae. Lazarides.

    Images

    Distribution

    Native to:

    Queensland

    Sorghum angustum S.T.Blake appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jun 1, 2000 Blake, S.T. [13737], Australia K000628128 isotype
    May 1, 2000 Blake, S.T. [9367], Australia K000628113
    Jan 1, 1990 Brass, L.J. [18965], Australia K000628117
    Jan 1, 1990 Blake, S.T. [9367], Australia K000628121
    Jan 1, 1990 Blake, S.T. [9367], Australia K000628122
    Jan 1, 1990 Blake, S.T. [9367], Australia K000628123
    Jan 1, 1990 Blake, S.T. [9367], Australia K000628124
    Jan 1, 1990 Webb, L.J. [6070], Australia K000628126
    Brass, L.J. [18951], Australia K000628118
    Clarkson, J.R. [9971], Australia K000628114
    Clarkson, J.R. [8004], Australia K000628115
    Clarkson, J.R. [10106], Australia K000628116
    Clarkson, J.R. [8073], Australia K000628125
    Clarkson, J.R. [7039], Australia K000628127
    Blake, S.T. [23325], Australia K000628119
    Blake, S.T. [18599], Australia K000628120
    Specht, R.L. [774], Australia K000628129

    First published in Pap. Dept. Biol. Univ. Queensland 1(18): 21 (1941)

    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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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