Digitaria violascens Link
  • Hort. Berol.
  • capim-milhã


Cite taxon page as 'WFO (2020): Digitaria violascens Link. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000864520. Accessed on: 29 May 2020'

General Information

Annual. Culms loosely tufted, infrequently shortly stoloniferous, 20–60 cm tall. Leaf sheaths glabrous or pilose, especially at mouth; leaf blades linear-lanceolate, 5–15 × 0.2–0.6 cm, scabrous, glabrous or adaxial surface pilose at base, apex acute; ligule 1–2 mm. Inflorescence subdigitate; racemes (2–)3–7(–10), ascending, 3–12 cm; spikelets ternate; rachis ribbonlike, winged, 0.5–0.8 mm broad, midrib low and rounded, margins serrate; pedicels angular, scabrous, with discoid tips. Spikelets elliptic-oblong, 1.4–1.9(–2.5) mm, hairs verrucose, sometimes hook-tipped; lower glume absent; upper glume lanceolate, slightly shorter than spikelet, 3(–5)-veined, intervein spaces and margins appressed-pubescent; lower lemma as long as spikelet, 5–7-veined, intervein spaces and margins pubescent, but usually glabrous flanking the middle vein; upper lemma dark brown or purplish black at maturity. Anthers 0.3–0.6 mm. Fl. and fr. Jul–Nov. 2n = 36.

  • Provided by: [H].Flora Of CHina @ efloras.org
    • Source: [
    • 4
    • ]. 

    16. Digitaria violascens Link, Hort. Berol. 1: 229 (1827). Holotipo: Cult. en Berlin, Anon. (B).

    Por R.W. Pohl y G. Davidse.

    Anuales cespitosas. Tallos 15-60 cm, erectos, generalmente simples; entrenudos y nudos glabros. Hojas generalmente glabras; lígula 1-2.3 mm; láminas 4-17 cm x 3-5 mm, lineares a linear-lanceoladas. Inflorescencias 3-12 cm; racimos 2-7, 3-12 cm, en 1 o 2 verticilos; raquis de los racimos 0.6-1 mm de ancho, alado, marginalmente escabroso. Espiguillas 1.4-1.5 mm, en tríadas o en grupos de 4-5 por nudo, elípticas, pelosas; gluma inferior ausente; gluma superior 1.3-1.4 mm, 3-nervia; lema inferior tan larga como la espiguilla, 5-7-nervia, la gluma superior y lema inferior adpreso puberulentas con tricomas diminutamente verrucosos; lema superior casi tan larga como la espiguilla, pardo oscuro; anteras 0.4-0.6 mm. 2n=36. Bordes de caminos, suelos perturbados. Ch (Beetle, 1987: 320); CR (Pohl y Davidse 11630, ISC); P (Hammel 1781, ISC). 0-1500 m. (Nativa en el Viejo Mundo; introducida en el Nuevo Mundo.)

  • Provided by: [F].Flora Mesoamericana
    • Source: [
    • 5
    • 1
    • ]. 

    Digitaria violascens Link, Hort. Berol. 1: 229. 1827.

    Anuales cespitosas; tallos 15–60 cm de largo, erectos, generalmente simples; entrenudos y nudos glabros. Hojas generalmente glabras; lígula 1–2.3 mm de largo; láminas lineares a linear-lanceoladas, 4–17 cm de largo y 3–5 mm de ancho. Inflorescencias 3–12 cm de largo, racimos 2–7, 3–12 cm de largo, en 1 ó 2 verticilos, raquis de los racimos alado, 0.6–1 mm de ancho, marginalmente escabroso; espiguillas elípticas, 1.4–1.5 mm de largo, en tríadas o en grupos de 4–5 por nudo, pilosas; gluma inferior ausente, gluma superior 1.3–1.4 mm de largo, 3-nervia; lema inferior tan larga como la espiguilla, 5–7-nervia, la gluma superior y lema inferior adpreso puberulentas con tricomas diminutamente verrugosos, lema superior casi tan larga como la espiguilla, café obscura; anteras 0.4–0.6 mm de largo.

    Esperada en Nicaragua en sitios perturbados; nativa del Viejo Mundo e introducida en las Américas.

  • Provided by: [B].Flora de Nicaragua
    • Source: [
    • 6
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    Plantas erecto-cespitosas, 15–70 cm. Hojas con la vaina glabra; lígula 1–2.5 mm; lámina 4–19 cm × 3–6 mm,glabra a glabrada. Infl. 3–13 cm; racimos 2–7, verticilados, 3–13 cm, el raquis marginalmente escabroso. Es-piguillas en tríadas o grupos de 4 ó 5, ca. 1.5 mm, adpreso-puberulentas; gluma inferior ausente, la superior ca. 1.5 mm, trinervada; lema inferior 5–7-nervada, la superior casi tan larga como la espiguilla.

  • Provided by: [E].Manual de Plantas de Costa Rica
    • Source: [
    • 7
    • ]. 

    "Distinguished from no. 2 [Digitaria ischaemum (Schreb.) Muhl.] by the somewhat smaller (1.5 mm), less pubescent spikelets, the hairs not capitellate, the second glume slightly shorter; 2n=36. Pantropical, extending into our range in Ky. and s. Ind."

  • Provided by: [A].New York Botanical Garden
    • Source: [
    • 8
    • ]. 

    Diagnostic Description

    Similar to D. longiflora, which has upper lemma pale yellow to green.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 9
    • ]. 

    Morphology

    Spikelets elliptic, 1.2–2 mm. long; lower glume an obscure hyaline rim; upper glume 4/5 to as long as the spikelet, 3(–5)-nerved, with short appressed verrucose hairs between the nerves; lower lemma as long as the spikelet, 5–7-nerved, pubescent (often obscurely so) with verrucose hairs; fruit ellipsoid, dark brown to almost black.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
    • ]. 

    Annual; culms 20–60 cm. high, erect or geniculately ascending, seldom stoloniferous.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
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    Leaf-blades 3–25 cm. long, 2–7 mm. wide.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
    • ]. 

    Inflorescence of (2–)3–6(–9) subdigitate racemes; racemes 3–14 cm. long, the spikelets ternate on a ribbon-like winged rhachis with low rounded midrib.

  • Provided by: [D].Plants Of the World Online Portal - FTEA
    • Source: [
    • 3
    • ]. 

    Tufted annual to 900 mm high; culms erect or decumbent, rooting from lower nodes. Leaf blade 40-220 x 2-7 mm. Inflorescence digitate to subdigitate, of (2)3-9 racemes 30-140 mm long; rachis ribbon-like, broadly winged; spikelets in clusters of 3. Spikelet 1.2-2.1 mm, hairy; lower glume a membranous obscure cuff or absent; upper glume equalling to as long as spikelet, 3-nerved, hairy between nerves; internode absent; lower lemma as long as spikelet, 5-nerved, glabrous or with minute hairs, green veins very distinctive; upper lemma dark brown to almost black; nearly completely concealed; anthers 0.3-0.6 mm long.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 9
    • ]. 

    Habitat

    Disturbed areas and woodland margins.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 9
    • ]. 

    Distribution

    Naturalised. Tanzania and tropical Asia and America. KZN.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 9
    • ]. 

    Distribution Map

     
    • Introduced distribution
    Introduced into
    • Southern America Brazil Amapí
    • Amazonas
    • Parí
    • Roraima
    • Bahia
    • Maranh
    • Paraní
    • Rio Grande do Sul
    • Santa Catarina
    • Minas Gerais
    • Rio de Janeiro
    • São Paulo
    • Brazilia Distrito Federal

    Synonyms

    Other Local Names

    NameLanguageCountry
    capim-milhãPortuguese
    capim-do-viveiroPortuguese
    capim-de-roçaPortuguese
    capim-colchão-finoPortuguese
    milhã-violetaPortuguese

     Information From

    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.
    • A Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Flora de Nicaragua
    http://www.tropicos.org/projectwebportal.aspx?projectid=7&pagename=Home&langid=66
    WD Stevens, CU Ulloa, A Pool and OM Montiel. Missouri Botanical Garden Press, 2001
    • B Missouri Botanical Garden
    e-Flora of South Africa
    e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
    • C All Rights Reserved
    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
    • D
    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
    • E Missouri Botanical Garden
    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
    • F Missouri Botanical Garden
    Brazilian Flora 2020 project - Projeto Flora do Brasil 2020
    http://floradobrasil.jbrj.gov.br
    Brazil Flora G (2014): Brazilian Flora 2020 project - Projeto Flora do Brasil 2020. v393.147. Instituto de Pesquisas Jardim Botanico do Rio de Janeiro. Dataset/Checklist. doi:10.15468/1mtkaw
    • G Group Brazil Flora, REFLORA Program
    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.
    • H Missouri Botanical Garden
    Poaceae
    • I CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • J CC0 1.0 Universal (CC0 1.0).