Chenopodium album L.
  • Sp. Pl.
  • Blonagán bán


Cite taxon page as 'WFO (2021): Chenopodium album L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000600897. Accessed on: 27 Nov 2021'

General Information

Herbs annual, 15-150 cm tall. Stem erect, much branched, green or purple-red striate, stout, ribbed; branches oblique or spreading. Leaf blade rhombic-ovate to broadly lanceolate, 3-6 × 2.5-5 cm, 1-2 × as long as petiole, abaxially ± farinose, adaxially usually glabrous, or sometimes reddish purple vesicular hairy on young leaves, base cuneate to broadly so, margin irregularly serrate, apex subobtuse or acute. Glomerules arranged into large or small panicles or spikelike panicles on upper part of branches. Flowers bisexual. Perianth segments 5, broadly ovate to elliptic, abaxially longitudinally keeled, farinose, margin membranous, apex acute or slightly emarginate. Stamens 5; anthers exserted. Stigmas 2. Pericarp adnate to seed. Seed horizontal, black, sublustrous, lenticular, 1-1.5 mm in diam., lineate, rim margin obtuse. Fl. and fr. May-Oct.

  • Provided by: [C].Flora Of CHina @ efloras.org
    • Source: [
    • 6
    • ]. 

    Stems erect to sprawling, simple to much-branched, 1-30 dm, sparsely to densely farinose. Leaves nonaromatic; petiole 1-2.5 cm, shorter than blades or occasionally longer; blade ovate-lanceolate to rhombic-lanceolate or broadly oblong, 1-5.5(-12) × 0.5-3.8(-8) cm, base narrowly to broadly cuneate, margins sinuous-dentate to shallowly serrate or entire, apex acute to subobtuse, farinose abaxially. Inflorescences glomerules or occasionally 1-flowered peduncles in terminal and lateral compound spikes, 2-19 cm; glomerules subglobose, 3-4 mm diam.; bracts absent. Flowers: perianth segments 5, distinct nearly to base; lobes ovate, ca. 1 × 1.1 mm, apex obtuse, keeled, farinose, largely covering fruit at maturity; stamens 5; stigmas 2, 0.2-0.3 mm. Utricles depressed-ovoid; pericarp nonadherent, occasionally adherent, smooth to papillate. Seeds lenticular, margins round, 0.9-1.6 mm diam.; seed coat black, smooth, indistinctly granulate and/or radially grooved, or with faint reticulate-rugose ridges. 2n = 54.

  • Provided by: [I].Flora of North America @ efloras.org
    • Source: [
    • 7
    • ]. 

    "Erect annual, much branched and to 1 m when well developed, the stems only seldom pigmented at the nodes, the lvs and infl often turning reddish late in the season; lvs generally ± white-mealy, rhombic-ovate to lanceolate, 3–10 cm, broadly cuneate at base, the larger (lower) ones mostly 1.5–2+ times as long as wide and almost always toothed; fls in dense glomerules, forming interrupted or continuous spikes that are grouped into a terminal paniculiform infl; cal ± white- mealy, its segments ± strongly carinate or cucullate, covering the fr, or sometimes looser and exposing the fr; style divided to the base, wholly deciduous; pericarp very thin and delicate, closely adherent to the seed and usually scarcely separable from it, smooth or only obscurely roughened when viewed at 10× or even 20×, uniformly black or blackish; seeds horizontal, black, shining, mostly 1.0–1.5 mm wide, usually marked with a faint radial furrow, otherwise smooth or nearly so; 2n=54. June–Oct. Polymorphic European weed, now widely intr. in N. Amer. and elsewhere. Sometimes divided into an indefinite number of infraspecific taxa or specific segregates. (C. glaucophyllum; C. lanceolatum, a relatively narrow-lvd form) In our range the two following segregates are particularly noteworthy and probably merit some sort of taxonomic recognition."

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

    Annual, 10-150 cm, usually erect, variously branched, ± grey farinose. Stems yellowish to green, green-striated, sometimes reddish or with red spots at leaf axils. Lower and medium leaves petiolate, blade usually 2-6(-10) cm, variously trullate, rhombic-ovate to lanceolate, clearly longer than broad, base narrowly to broadly cuneate, margins irregularly serrate to entire, often somewhat 3-lobed, teeth mostly acute, often unequal in size; uppermost leaves lanceolate, usually entire. Inflorescence a variable spiciform or cymosely branched panicle, mostly terminal. Perianth segments 5, dorsally keeled. Perianth falling with fruit. Pericarp thin, ± adherent. Seeds horizontal, black, 1.1-1.5 mm in diameter, somewhat ovate, margin weakly acute; testa with faint radial striae, otherwise almost smooth.

  • Provided by: [K].Flora of Pakistan
    • Source: [
    • 9
    • ]. 

    Morphology

    Pericarp somewhat persistent, but easily rubbed or scraped off seed. Seeds black, shining, 1.2–1.6 (1.85) mm. in diam., bluntly keeled; testa (see under microscope) marked with faint irregular radial furrows, but otherwise almost smooth.

  • Provided by: [H].Plants Of the World Online Portal - FZ
    • Source: [
    • 4
    • ]. 

    Stamens 5.

  • Provided by: [H].Plants Of the World Online Portal - FZ
    • Source: [
    • 4
    • ]. 

    Perianth segments 5, papillose with grey mealy hairs on margins and outside, each with a prominent green keel in upper part.

  • Provided by: [H].Plants Of the World Online Portal - FZ
    • Source: [
    • 4
    • ]. 

    Inflorescence a usually ample pancile of very numerous small or medium-sized (2–6 mm. in diam.) densely or laxly spicately or cymosely arranged dense rounded clusters (“glomerules”) of minute grey to green flowers, the latter 1–1.5 mm. in diam.

  • Provided by: [H].Plants Of the World Online Portal - FZ
    • Source: [
    • 4
    • ]. 

    Leaves very variable even on a single plant, rhombic-ovate to lanceolate, usually distinctly longer than broad by at least 14 times (but the juvenile leaves following the cotyledons may be almost as broad as long), 1.2–8.2 × 0.3–5.5 cm.; leaf-margins entire or more commonly with up to about 10 shallow irregular teeth on each side, the lowermost tooth or lobe on each margin sometimes more prominent than the rest; apex of each margin sometimes more prominent than the rest; apex of leaf acute, or particularly in the lower cauline leaves subacute to rounded; superior leaves and bracts progressively smaller.

  • Provided by: [H].Plants Of the World Online Portal - FZ
    • Source: [
    • 4
    • ]. 

    Annual herb usually 10–150 cm. high, normally, much branched, but sometimes stems simple or subsimple especially in small plants; plant green or tinged red especially on stem (which is often red or pink striped), more or less clothed with grey-mealy hairs especially on young parts.

  • Provided by: [H].Plants Of the World Online Portal - FZ
    • Source: [
    • 4
    • ]. 

    Herb usually 10–150 cm. high, annual, normally much branched but sometimes lateral branches short and stem thus appearing subsimple, green or red-tinged, especially on stem, more or less grey-mealy especially on young parts.

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

    Leaves very variable, rhombic-ovate to lanceolate, mostly distinctly longer than broad by normally at least 1½ times (but the juvenile leaves following the cotyledons may be almost as broad as long), from about 1.2 x 0.3 and 2.3 x 1.3 cm. to 5.4 x 3.1, 6.5 x 3.8, 7 x 1.5, 7 x 3.7 and 8.2 x 5.5 cm., margins entire or more commonly with up to about 10 shallow teeth each side, prominent basal lobes not commonly present, apex of leaf acute, or particularly in the lower cauline leaves subacute to rounded; upper leaves and bracts progressively smaller.

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

    Sepals 5, papillose on margins and outside, each with a prominent green keel in upper part.

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

    Inflorescence a usually ample panicle of very numerous small or medium (2–6 mm. in diameter) densely or laxly spicately or cymosely arranged dense rounded clusters (“glomerules”) of minute grey to green flowers, latter 1–1.5 mm. in diameter.

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

    Pericarp somewhat persistent but easily rubbed or scraped off seed.

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

    Seeds (Fig. 1, p. 2) black, shining, 1.2–1.6 (–1.85) mm. in diameter, bluntly keeled, testa under microscope marked with faint radial furrows further apart than in C. opulifolium, otherwise almost smooth.

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

    Stamens 5.

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

    30–100 cm hoch, mit meist aufrecht abstehenden Zweigen, ± dicht mit Mehlstaub belegt und daher meist graugrün. Blätter vielgestaltig: oval, lanzettlich oder rhombisch, unregelmässig gezähnt bis gelappt (nur selten ganzrandig), die meisten mehr als

  • Provided by: [G].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 10
    • ]. 

    Erect annual herb, up to 1.5 m high. Leaves lanceolate-ovate to subtrilobed; petioles slender, up to 40 mm long. Flowers in dense leafless terminal panicles, overtopping leaves. Flowers green.

  • Provided by: [F].e-Flora of South Africa
    • Source: [
    • 11
    • ]. 

    Espèce très voisine de la précédente et de port identique; elle en diffère, d'une part, par les feuilles moyennes au moins 2 fois plus longues que larges et souvent plus grandes (jusqu'à 7-8 cm de long et 2-3 cm de large) à dents plus nombreuses, les supérieures de plus en plus étroites et moins dentées, et par une pruinosité souvent plus marquée (caractère très variable) et, d'autre part, par ses akènes à péricarpe se détachant facilement (par frottement entre les doigts) de la graine, qui est plus comprimée, à arête aiguë ou même carénée.

  • Provided by: [J].Flore d'Afrique Centrale
    • Source: [
    • 12
    • ]. 

    Annual herb, up to 1 m high. Stems erect or drooping, ribbed. Leaves petiolate; blade ovate, narrowly ovate to subtrilobed, variable in size, margins entire, toothed or lobed, upper surface dark green, lower surface with a thick whitish, mealy covering; petioles slender, up to 40 mm long. Flowers: in dense, leafless, terminal panicles, overtopping leaves; perianth green; Dec.-Apr.

  • Provided by: [F].e-Flora of South Africa
    • Source: [
    • 13
    • ]. 

    Ecology

    7–9. Äcker, Gärten, Schuttplätze, kollin-subalpin. CH.

  • Provided by: [G].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 10
    • ]. 

    Habitat

    Disturbed places.

  • Provided by: [F].e-Flora of South Africa
    • Source: [
    • 11
    • ]. 

    Espèce typiquement rudérale et nitrophile extrêmement répandue comme « mauvaise herbe » dans les régions tempérées, mais jusqu'à présent très rarement observée au Congo belge.

  • Provided by: [J].Flore d'Afrique Centrale
    • Source: [
    • 12
    • ]. 

    Vredefort Dome Savanna; Dry Grassland; Mesic Grassland; Dwarf Karroid Shrubland; Zastron Moist Grassland. Disturbed places.

  • Provided by: [F].e-Flora of South Africa
    • Source: [
    • 13
    • ]. 

    Distribution

    Native to Europe and Asia.

  • Provided by: [F].e-Flora of South Africa
    • Source: [
    • 11
    • ]. 

    Native to Europe and Asia.

  • Provided by: [F].e-Flora of South Africa
    • Source: [
    • 13
    • ]. 

    Distribution Map

     
    • Native distribution
    • Introduced distribution
    Found in
    • Europe Northern Europe Ireland
    Introduced into
    • Southern America Brazil Paraní
    • Rio Grande do Sul
    • Santa Catarina
    • São Paulo
    • Goiás

    Synonyms

    Nationally Preferred Names

    NameLanguageCountry
    Blonagán bánIrishIE
    Fat henEnglishIE

    Other Local Names

    NameLanguageCountry
    Weisser GänsefussGermanCH
    erva-formigueira-brancaPortuguese
    Chénopode blancFrenchCH
    Lamb’s-quarters, pigweed
    Praiseach fhiadhainIrishIE
    Farinello comuneItalianCH
    Praiseach fhiáinIrishIE
    Praiseach mhínIrishIE
    MilesEnglishIE
    Lus coise gé (bán)IrishIE
    Farinent alvRaeto-RomanceCH
    DungweedEnglishIE
    Lamb’s quartersEnglishIE
    DirtweedEnglishIE
    ançarinha-brancaPortuguese
    MuckweedEnglishIE
    White goosefootEnglishIE

      Bibliography

     Information From

    Amaranthaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    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
    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.
    • C Missouri Botanical Garden
    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.
    • D Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    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
    • E Group Brazil Flora, REFLORA Program
    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
    • F All Rights Reserved
    Flora Helvetica – Illustrierte Flora der Schweiz
    http://www.flora-helvetica.ch
    Flora Helvetica – Illustrierte Flora der Schweiz, Konrad Lauber, Gerhart Wagner, Andreas Gygax. Haupt Verlag 2018.
    • G All Rights Reserved
    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
    • H
    Flora of North America @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=1
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • I Flora of North America Association
    Flore d'Afrique Centrale
    https://www.floredafriquecentrale.be
    • J http://creativecommons.org/licenses/by/4.0/ Attribution 4.0 International (CC BY 4.0)
    Flora of Pakistan
    http://www.tropicos.org/Project/Pakistan
    Flora of Pakistan. Missouri Botanical Garden. Accessed on Jun. 2020.
    • K Missouri Botanical Garden
    Irish Vernacular Names
    https://www.missouribotanicalgarden.org/plant-science/plant-science/research-staff/article/380/wyse-jackson-peter-s.aspx
    • L All Rights Reserved
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • M CC0 1.0 Universal (CC0 1.0).