Bromus L.
  • Sp. Pl. 1: 76. 1753. (1 May 1753)


Cite taxon page as 'WFO (2020): Bromus L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000005481. Accessed on: 27 Nov 2020'

General Information

57. Bromus L.

Por R.W. Pohl y G. Davidse.

Anuales o perennes, cespitosas o raramente rizomatosas. Tallos simples. Vainas con los márgenes unidos; lígula una membrana; láminas lineares, generalmente aplanadas. Inflorescencia una panícula terminal. Espiguillas comprimidas lateralmente, con 3-numerosos flósculos bisexuales; desarticulación arriba de las glumas y entre los flósculos; glumas 2, más cortas que el flósculo inferior, desiguales, herbáceas, 1-9-nervias; lemas herbáceas, 3-9-nervias, redondeadas o carinadas, el ápice agudo o 2-dentado, mútico o aristado entre los dientes; pálea 2-carinada, algo más corta que la lema; lodículas 2; ovario peloso, el ápice 2-lobado; estilos 2, subapicales. Fruto una cariopsis sulcada; hilo linear; embrión menor que 1/3 la longitud de la cariopsis. Aprox. 150-200 spp. Climas templados o montanos.

Bibliografía: Pinto-Escobar, P. Bot. Jahrb. Syst. 102: 445-457 (1981). Simon, B.K. Austral. Syst. Bot. Soc. Newslett. 33: 12-13 (1982). Soderstrom, T.R. y Beaman, J.H. Publ. Mus. Michigan State Univ., Biol. Ser. 35: 469-519 (1968). Wagnon, H.K. Brittonia 7: 415-480 (1952).

  • Provided by: [A].Flora Mesoamericana
    • Source: [
    • 1
    • 9
    • ]. 

    Spikelets several-flowered, the rachilla disarticulating above the glumes and be- tween the florets; glumes acute, the first 1- or obscurely 3-nerved, the second 3- to 5-nerved; lemmas keeled, 5- to 9-nerved, awned from between the teeth of the minutely bifid apex; palea shorter than the lemma, thin, ciliate on the keels, ad- herent to the caryopsis. Slender perennials with closed sheaths, flat narrow blades, and open panicles of relatively large spikelets.

  • Provided by: [F].Flora de Panama
    • Source: [
    • 10
    • ]. 

    Annuals or perennials. Culms erect, tufted or with rhizomes. Leaf sheaths closed; leaf blades linear, usually flat; ligules membranous. Panicles spreading or contracted, branches scabrid or pubescent, elongated or arched. Spikelets large, with 3 to many florets, upper florets often sterile; rachilla disarticulating above glumes and between florets, scabrid or shortly hairy; glumes unequal or subequal, shorter than spikelet, lanceolate or nearly ovate, (1–)5–7-veined, apex acute or long acuminate or aristiform; floret callus glabrous or both sides thinly hairy; lemmas rounded on back or compressed to keel, 5–9(–11)-veined, herbaceous or nearly leathery, margins often membranous, apex entire or 2-toothed; awn terminal or arising from lemma between teeth slightly under apex, rarely awnless or 3-awned; palea narrow, usually shorter than lemma, keels ciliate or scabrid. Lodicules 2. Stamens 3. Ovary apex with appendage; styles 2, arising from lower front of appendage. Caryopsis oblong, apex hairy, adaxial surface sulcate. Chromosomes large, x = 7, 2n = 14, 28, 42, 56, 70.

  • Provided by: [E].Flora Of CHina @ efloras.org
    • Source: [
    • 12
    • ]. 

    Hierbas cespitosas, los tallos erectos. Hojas con la vaina con los márgenes unidos; lígula una membrana;lámina linear, aplanada. Infl. una panícula terminal, verde. Espiguillas comprimidas lateralmente; desarticu-lación por arriba de las glumas; glumas más cortas que el flósculo superior, desiguales, 1–9-nervadas; flósculosnumerosos, bisexuales; lemas redondeadas a carinadas; páleas bicarinadas.

  • Provided by: [D].Manual de Plantas de Costa Rica
  • "Spikelets with several to many fls, eventually disarticulating between the lemmas and above the glumes, oval to narrowly oblong, subterete or laterally flattened; glumes somewhat unequal, shorter than the lemmas; lemmas 3–9-veined, 2-toothed at the tip, awnless or more often awned between the teeth; spikelets large, often in lax or drooping panicles; sheaths usually closed nearly to the top. 100, widespread in temp. reg."

  • Provided by: [C].New York Botanical Garden
    • Source: [
    • 14
    • ]. 

    Morphology

    Leaf-blades rarely auriculate; sheaths usually hairy

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 8
    • ]. 

    Panicle usually fairly large and open

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 8
    • ]. 

    Annuals or perennials

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 8
    • ]. 

    Styles arising laterally from below the hairy apex of the ovary.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 8
    • ]. 

    Spikelets usually large, the lemmas well exserted from the glumes and awned from the sinus of the 2-toothed tip or from just below it, rarely with just an awn-point or mucro

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 8
    • ]. 

    Included Species

     Information From

    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
    • A Missouri Botanical Garden
    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
    • B
    New York Botanical Garden
    Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
    • C Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Manual de Plantas de Costa Rica
    http://www.tropicos.org/Project/Costa%20Rica
    Hammel, B. E.; Grayum, M. H.; Herrera, C.; Zamora, N. Manual de Plantas de Costa Rica. Missouri Botanical Garden Press, 2003-2014
    • D 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.
    • E Missouri Botanical Garden
    Flora de Panama
    http://www.tropicos.org/Project/PAC
    Robert E. Woodson, Jr. and Robert W. Schery Annals of the Missouri Botanical Garden Vol. 67, No. 4 (1980), pp. ii-xxxiii
    • F Missouri Botanical Garden
    Poaceae
    • G CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • H CC0 1.0 Universal (CC0 1.0).