1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum malacophyllum Nash

        This species is accepted, and its native range is Central & E. Central U.S.A.

    [GB]
    Habit
    Perennial. Culms erect, or geniculately ascending; 30-70 cm long. Culm-internodes distally pilose. Culm-nodes bearded. Lateral branches fastigiate. Leaves basal and cauline; heterophyllous with a basal winter rosette. Leaf-sheaths pilose; with tubercle-based hairs and reflexed hairs. Ligule a fringe of hairs; 1-1.5 mm long. Leaf-blades lanceolate; 6-10 cm long; 5-12 mm wide. Leaf-blade surface pubescent. Leaf-blade margins ciliate.
    Inflorescences
    Inflorescence a panicle; terminal and axillary. Panicle open; ovate; 3-7 cm long. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong, or obovate; with obtuse base; dorsally compressed; obtuse; 2.6-3.2 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong, or obovate; with obtuse base; dorsally compressed; obtuse; 2.6-3.2 mm long; falling entire.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.33-0.5 length of spikelet; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume oblong; 1 length of spikelet; membranous; without keels; 7-9 -veined. Upper glume lateral veins prominent. Upper glume surface pilose; with tubercle-based hairs. Upper glume apex obtuse.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; oblong; 1 length of spikelet; membranous; 7-9 -veined; prominently veined; pilose; with tubercle-based hairs; obtuse. Fertile lemma oblong, or obovate; dorsally compressed; 2.6-3.2 mm long; indurate; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    North America: north-central USA, south-central USA, and southeast USA.
    Reference
    Paniceae. Gr Texas 1994.

    Images

    Distribution

    Native to:

    Alabama, Arkansas, Illinois, Kansas, Kentucky, Missouri, Oklahoma, Tennessee, Texas

    Panicum malacophyllum Nash appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Bush, B. F. [1227], Oklahoma K000674496
    Bush, B. F. [1227], Oklahoma K000674497 isotype

    First published in Bull. Torrey Bot. Club 24: 198 (1897)

    Accepted by

    • Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.
    • 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