1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum crateriferum Sohns

        This species is accepted, and its native range is Mexico (Guerrero, Oaxaca).

    [GB]
    Habit
    Perennial. Glands sunken crateriform. Culms decumbent; 20-60 cm long; rooting from lower nodes. Culm-internodes 2.5-6 cm long; distally glabrous, or pilose. Culm-nodes brown; pubescent. Lateral branches ample. Leaf-sheaths 0.8-2.5 cm long; mostly shorter than adjacent culm internode; glabrous on surface, or hispid; outer margin hairy. Ligule a ciliate membrane; 0.4 mm long. Collar pubescent. Leaf-blade base symmetrical; with a brief petiole-like connection to sheath; petiole pubescent. Leaf-blades lanceolate; 4-6 cm long; 6-13 mm wide. Leaf-blade midrib indistinct. Leaf-blade venation with obscure cross veins. Leaf-blade surface pilose; sparsely hairy; hairy adaxially, or on both sides; with tubercle-based hairs. Leaf-blade margins ciliate; hairy at base.
    Inflorescences
    Inflorescence composed of racemes. Racemes 4-6; borne along a central axis; distant; ascending; unilateral; 0.5-3 cm long. Central inflorescence axis 5-10 cm long; glabrous. Rhachis angular; with scattered hairs, or glabrous on surface; scabrous on margins. Raceme-bases hirsute. Spikelets in pairs. Fertile spikelets sessile and pedicelled. Pedicels scabrous.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate, or ovate; dorsally compressed; 2.5-3.1 mm long; 0.8-1.1 mm wide; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate, or ovate; dorsally compressed; 2.5-3.1 mm long; 0.8-1.1 mm wide; falling entire.
    Glume
    Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume lanceolate, or oblong; 1.3-2 mm long; 0.33-0.5 length of spikelet; membranous; without keels; 3(-5) -veined. Lower glume primary vein scabrous. Lower glume surface scabrous; pilose; hairy above; with tubercle-based hairs. Lower glume margins ciliate. Lower glume apex acuminate. Upper glume ovate; 2.1-2.8 mm long; 1 length of spikelet; membranous; without keels; 5(-7) -veined. Upper glume surface hirsute; hairy above. Upper glume apex acute.
    Florets
    Basal sterile florets male; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 2.4-3 mm long; 1 length of spikelet; membranous; glandular (2 glands); 5(-7) -veined; pilose; acute. Palea of lower sterile floret 2.2-2.6 mm long; pilose; adorned on flanks. Fertile lemma elliptic; dorsally compressed; 1.5-2 mm long; indurate; yellow; without keel. Lemma margins involute. Palea involute; indurate.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    North America: Mexico.
    Reference
    Paniceae. Zuloaga 1996.

    Distribution

    Native to:

    Mexico Southwest

    Panicum crateriferum Sohns appears in other Kew resources:

    First published in J. Washington Acad. Sci. 46: 378 (1957)

    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.
    • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.

    Literature

    Kew Backbone Distributions
    • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.

    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