1. Family: Poaceae Barnhart
    1. Genus: Andropogon L.
      1. Andropogon floridanus Scribn.

        This species is accepted, and its native range is SE. U.S.A.

    [GB]
    Habit
    Perennial; caespitose. Culms 50-160 cm long. Lateral branches ample. Leaf-sheaths antrorsely scabrous. Ligule an eciliate membrane. Leaf-blades 25-50 cm long; 2-6 mm wide. Leaf-blade surface scabrous.
    Inflorescences
    Synflorescence compound; paniculate. Inflorescence composed of racemes; terminal and axillary; subtended by a spatheole; exserted, or embraced at base by subtending leaf. Spatheole linear, or lanceolate; 4-5 cm long. Peduncle 1 cm long, or 2 cm long; hirsute above. Racemes 2; paired; 3-4 cm long. Rhachis fragile at the nodes; plumose on margins. Rhachis hairs 5-8 mm long. Rhachis internodes clavate; 3-3.5 mm long. 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 filiform; curved; 4-5 mm long; plumose; with 5-8 mm long hairs.
    Sterile
    Companion sterile spikelets represented by barren pedicels, or represented by single glumes; linear; 1 mm long; shorter than fertile.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 3.5-4 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent; base obtuse; inserted. Companion sterile spikelets represented by barren pedicels, or represented by single glumes; linear; 1 mm long; shorter than fertile.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 3.5-4 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 dorsally. Lower glume primary vein ciliate. Lower glume intercarinal veins absent. Lower glume surface concave. Upper glume lanceolate; membranous; 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; awned; 1 -awned. Principal lemma awn from a sinus; straight, or geniculate; 8-12 mm long overall; with a straight or slightly twisted column. Column of lemma awn glabrous.
    Flowers
    Anthers 1.
    Distribution
    North America: southeast USA.
    Reference
    Andropogoneae. Man Gr US 1994.

    Images

    Distribution

    Native to:

    Alabama, Florida, Georgia

    Andropogon floridanus Scribn. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nash, G.V. [1572], Florida K000974851 isotype
    Baker, C.H. [58], Florida K000974850 isotype

    First published in Bull. Torrey Bot. Club 23: 145 (1896)

    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.
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.

    Literature

    Kew Backbone Distributions
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.

    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