1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum ephemeroides Zuloaga & Morrone

        This species is accepted, and its native range is Brazil (Goiás).

    [GB]
    Habit
    Annual. Culms erect; 60-70 cm long. Culm-internodes distally glabrous. Culm-nodes glabrous. Leaf-sheaths striately veined and reticulately veined; glabrous on surface. Ligule a ciliate membrane; 2-2.5 mm long. Leaf-blades involute; 20-23 cm long; 2 mm wide. Leaf-blade surface glabrous. Leaf-blade margins scaberulous. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence a panicle; terminal and axillary. Axillary inflorescences similar to terminal. Peduncle 16-25 cm long; glabrous. Panicle open; elliptic; effuse; 30 cm long; contracted about secondary branches. Primary panicle branches ascending. Panicle axis angular; smooth, or scaberulous. Panicle branches scabrous. Spikelets appressed; solitary. Fertile spikelets pedicelled. Pedicels clavate; scabrous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 3.5-3.6 mm long; 1-3 mm wide; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 3.5-3.6 mm long; 1-3 mm wide; falling entire.
    Glume
    Glumes similar; reaching apex of florets; thinner than fertile lemma; gaping. Lower glume ovate; 2.8 mm long; 0.75 length of spikelet; membranous; without keels; 3(-5) -veined. Lower glume primary vein scaberulous. Lower glume apex setaceously attenuate. Upper glume ovate; 3.5-3.6 mm long; 1 length of spikelet; membranous; without keels; 5(-7) -veined. Upper glume primary vein scabrous. Upper glume apex acuminate.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 3.5-3.6 mm long; 1 length of spikelet; membranous; 5 -veined; acuminate. Palea of lower sterile floret 2 mm long; 0.5 length of lemma. Fertile lemma elliptic; dorsally compressed; 2.1 mm long; 1.1 mm wide; indurate; dark brown; shiny; without keel; 5 -veined. Lemma margins involute. Palea involute; indurate.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid; 2.4 mm long; pallid. Embryo 0.33 length of caryopsis. Hilum elliptic.
    Distribution
    South America: Brazil.
    Reference
    Paniceae. Zuloaga 2001.

    Distribution

    Native to:

    Brazil West-Central

    Panicum ephemeroides Zuloaga & Morrone appears in other Kew resources:

    First published in Ann. Missouri Bot. Gard. 83: 239 (1996)

    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.

    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

    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