1. Family: Poaceae Barnhart
    1. Genus: Andropogon L.
      1. Andropogon durifolius Renvoize

        This species is accepted, and its native range is E. Brazil.

    [GB]
    Habit
    Perennial. Rhizomes elongated. Culms erect; 90-150 cm long; wiry. Lateral branches sparse. Ligule an eciliate membrane. Leaf-blades conduplicate, or terete; 30-60 cm long; 1-4 mm wide; coriaceous; stiff. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 2(-3); paired; 6-9 cm long. Rhachis fragile at the nodes; ciliate on margins. Rhachis internodes clavate. Rhachis internode tip transverse; cupuliform; with simple rim. Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels clavate; ciliate.
    Sterile
    Companion sterile spikelets well-developed; containing empty lemmas; lanceolate; 5-6 mm long; separately deciduous. Companion sterile spikelet glumes chartaceous; glabrous; acute; muticous. Companion sterile spikelet lemmas 4 mm long.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 5-6 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent; base obtuse; inserted. Companion sterile spikelets well-developed; containing empty lemmas; lanceolate; 5-6 mm long; separately deciduous. Companion sterile spikelet glumes chartaceous; glabrous; acute; muticous. Companion sterile spikelet lemmas 4 mm long.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 5-6 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent; base obtuse; inserted.
    Glume
    Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1 length of spikelet; coriaceous; 2-keeled; keeled laterally. Lower glume intercarinal veins distinct. Lower glume surface concave. Upper glume linear; coriaceous; 1-keeled. Upper glume muticous.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret oblong; hyaline. Fertile lemma lanceolate; hyaline; without keel. Lemma apex lobed; 2 -fid; incised 0.25 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 3-12 mm long overall; with twisted column. Column of lemma awn glabrous.
    Flowers
    Anthers 3.
    Distribution
    South America: Brazil.
    Reference
    Andropogoneae. Gr Bahia 1995.

    Images

    Distribution

    Native to:

    Brazil Northeast, Brazil Southeast

    Andropogon durifolius Renvoize appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Harley, R.M. [19569], Bahia K000004704 isotype

    First published in Kew Bull. 39: 181 (1984)

    Accepted by

    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.

    Literature

    Kew Backbone Distributions
    • Forzza, R.C. & al. (2013). Lista de Espécies da Flora do Brasil http://floradobrasil.jbrj.gov.br/2010/.

    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