1. Family: Poaceae Barnhart
    1. Genus: Sorghum Moench
      1. Sorghum matarankense E.D.Garber & Snyder

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

    [GB]
    Habit
    Annual. Culms erect, or geniculately ascending; 100-200 cm long; without nodal roots, or with prop roots. Culm-internodes distally pruinose. Culm-nodes constricted; glabrous, or pubescent. Lateral branches lacking, or sparse. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs lacking, or pubescent, or ciliate. Leaf-sheath auricles erect. Ligule an eciliate membrane, or a ciliolate membrane; 2-3 mm long. Leaf-blades 5-70 mm wide.
    Inflorescences
    Inflorescence a panicle with branches tipped by a raceme. Panicle open; dense; 30-40 cm long. Primary panicle branches whorled at most nodes; sparsely divided; 4.5-8 cm long. Panicle axis terete, or angular. Racemes 1.5-3 cm long; bearing few fertile spikelets; bearing 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; ciliate.
    Spikelets
    Companion sterile spikelets well-developed; containing empty lemmas, or male; lanceolate; dorsally compressed; 4.5-7.3 mm long; as long as fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; 7 -veined; acute, or acuminate; muticous. Companion sterile spikelet lemmas enclosed by glumes. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate, or elliptic; dorsally compressed; 4.5-6 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus brief, or square; 0.5-0.7 mm long; base obtuse.
    Sterile
    Companion sterile spikelets well-developed; containing empty lemmas, or male; lanceolate; dorsally compressed; 4.5-7.3 mm long; as long as fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; 7 -veined; acute, or acuminate; muticous. Companion sterile spikelet lemmas enclosed by glumes.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate, or elliptic; dorsally compressed; 4.5-6 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus brief, or square; 0.5-0.7 mm long; base obtuse.
    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; 2-keeled; keeled above; 7-9 -veined. Lower glume surface pilose. Lower glume apex dentate; 2 -fid; mucronate. Upper glume ovate; coriaceous; much thinner above; 1-keeled; keeled above; 5-7 -veined. Upper glume surface pilose. Upper glume apex dentate; 2 -fid.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; 4.5-6 mm long; hyaline; 2 -veined; acute. Fertile lemma oblong; 4-5 mm long; hyaline; 1 -veined. Lemma apex lobed; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 30-40 mm long overall; with twisted column. Column of lemma awn glabrous. Palea absent or minute.
    Flowers
    Lodicules 2; oblong; fleshy; ciliate; hairy on the corners. Anthers 3; 2.5-3 mm long. Stigmas 2. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp; 2-3 mm long.
    Distribution
    Australasia: Australia.
    Reference
    Andropogoneae. Lazarides 1993.

    Distribution

    Native to:

    Northern Territory, Western Australia

    Sorghum matarankense E.D.Garber & Snyder appears in other Kew resources:

    First published in Madroño 11: 8 (1951)

    Accepted by

    • Commonwealth Scientific and Industrial Research Organisation (2014- continuously updated). Atlas of Living Australia http://www.ala.org.au/.
    • 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