Chrysopogon Trin.
  • Fund. Agrost. 187. 1820.


Cite taxon page as 'WFO (2021): Chrysopogon Trin. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000008234. Accessed on: 23 Oct 2021'

General Information

Perennial, tufted or with spreading rhizomes. Leaf blades mostly basal, usually narrow; ligule a short ciliolate rim or line of hairs. Inflorescence a lax terminal panicle; primary branches whorled, filiform, usually unbranched, each bearing a raceme; racemes composed of few to many spikelet pairs, or more usually reduced to a triad of 1 sessile bisexual spikelet flanked by 2 pedicellate male or barren spikelets; rachis internodes and pedicels slender. Sessile spikelet laterally compressed; callus elongate, acute to pungent, usually bearded; lower glume cartilaginous to leathery, often spinulose; upper glume boat-shaped, usually shortly awned; lower floret reduced to an empty hyaline lemma; upper lemma entire or 2-toothed, awned from apex or sinus or infrequently awnless; awn geniculate, glabrous to pubescent. Pedicelled spikelet dorsally compressed, well developed or reduced, male or barren.

  • Provided by: [D].Flora Of CHina @ efloras.org
    • Source: [
    • 7
    • ]. 

    154. Chrysopogon Trin., nom. cons.

    Por G. Davidse.

    Perennes o raramente anuales, cespitosas o rizomatosas. Vainas redondeadas; lígula una membrana o una hilera de tricomas; láminas lineares, aplanadas o plegadas. Inflorescencia una panícula solitaria, terminal, los racimos verticilados, generalmente cada racimo reducido a una tríada de 1 espiguilla sésil y 2 espiguillas pediceladas; entrenudos del racimo lineares. Espiguillas sésiles bisexuales, más o menos comprimidas lateralmente, con 2 flósculos; callo alargado, punzante u obtuso, oblicuo, piloso; gluma inferior cartilaginosa, convexa en el dorso, a veces espinulosa en los márgenes; gluma superior frecuentemente aristada; flósculo inferior estéril; lema inferior hialina, enervia; pálea inferior ausente; flósculo superior bisexual; lema superior hialina, 2-dentada o entera, aristada; lodículas 2; estambres 3; estilos 2; fruto una cariopsis; hilo punteado. Espiguillas pediceladas estaminadas o estériles, angostamente lanceoladas, con o sin arista; pedicelos libres. 26 spp. Trópicos y áreas templadas cálidas del Viejo Mundo, 1 sp. en América.

    La única especie en Mesoamérica es Chrysopogon aciculatus.

  • Provided by: [C].Flora Mesoamericana
    • Source: [
    • 8
    • 1
    • ]. 

    Morphology

    Pedicelled spikelet male or neuter.

  • Provided by: [B].Plants Of the World Online Portal - FZ
    • Source: [
    • 5
    • ]. 

    Sessile spikelet laterally compressed, its callus elongated and obtuse to pungent, often large and conical; glumes subequal, unequally awned or awnless; inferior glume chartaceous to coriaceous, often spinulose on the keels and muricate or mammilate on the back; superior lemma entire or bilobed, awned or awnless; awn glabrous to pubescent and usually prominent.

  • Provided by: [B].Plants Of the World Online Portal - FZ
    • Source: [
    • 5
    • ]. 

    Inflorescence a panicle, its primary branches whorled, simple; racemes 1–many-jointed; pedicels linear, filiform, never longitudinally grooved.

  • Provided by: [B].Plants Of the World Online Portal - FZ
    • Source: [
    • 5
    • ]. 

    Caespitose perennials, sometimes rhizomatous; leaf sheaths sometimes keeled, the basal flabellate-imbricate; ligule a short membrane or a line of hairs; leaf laminas flat or conduplicate.

  • Provided by: [B].Plants Of the World Online Portal - FZ
    • Source: [
    • 5
    • ]. 

    Pedicelled spikelet ♂ or barren, narrowly lanceolate, awned or awnless.

  • Provided by: [A].Plants Of the World Online Portal - FTEA
    • Source: [
    • 6
    • ]. 

    Sessile spikelet ± laterally compressed; callus oblique, obtuse to pungent; lower glume cartilaginous, rounded on the back, sometimes spinulose on the margins; upper glume often awned; lower floret reduced to a hyaline lemma; upper lemma hyaline, bidentate or entire, with a glabrous or pubescent awn

  • Provided by: [A].Plants Of the World Online Portal - FTEA
    • Source: [
    • 6
    • ]. 

    Caryopsis narrowly ellipsoid

  • Provided by: [A].Plants Of the World Online Portal - FTEA
    • Source: [
    • 6
    • ]. 

    Perennials, mostly tufted

  • Provided by: [A].Plants Of the World Online Portal - FTEA
    • Source: [
    • 6
    • ]. 

    Inflorescence a terminal panicle with whorls of slender persistent branches bearing terminal racemes; each raceme reduced to a triad of 1 sessile and 2 pedicelled spikelets with linear pedicels (rarely an additional pair of spikelets present), commonly the sessile spikelet pallid or yellowish with fulvous callus-beard and the pedicelled spikelet purple

  • Provided by: [A].Plants Of the World Online Portal - FTEA
    • Source: [
    • 6
    • ]. 

    Leaf-blades linear, often harsh and glaucous; ligule a short membrane or a line of hairs

  • Provided by: [A].Plants Of the World Online Portal - FTEA
    • Source: [
    • 6
    • ]. 

    Included Species

    Synonyms

     Information From

    Plants Of the World Online Portal - FTEA
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • A
    Plants Of the World Online Portal - FZ
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • B
    Flora Mesoamericana
    http://www.mobot.org/MOBOT/fm/
    Gerrit Davidse, Mario Sousa Sánchez, A. O. Chater, Universidad Nacional Autónoma de México. Instituto de Biología, Missouri Botanical Garden, Natural History Museum (London, England) UNAM, 1994
    • C Missouri Botanical Garden
    Flora Of CHina @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=2
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • D Missouri Botanical Garden
    Poaceae
    • E CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • F CC0 1.0 Universal (CC0 1.0).