Fagopyrum esculentum Moench
  • Methodus
  • Lus na gcearc


Cite taxon page as 'WFO (2021): Fagopyrum esculentum Moench. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000685460. Accessed on: 26 Sep 2021'

General Information

Herbs annual. Stems green or red when mature, erect, 30-90 cm tall, branched above, glabrous or papillate on one side. Petiole 1.5-5 cm; leaf blade triangular, 2.5-7 × 2-5 cm, both surfaces papillate along veins, base cordate or nearly truncate, apex acuminate; ocrea caducous, ca. 5 mm, membranous, oblique, not ciliate. Inflorescence axillary or terminal, racemose or corymbose; peduncles 2-4 cm, papillate along one side; bracts green, ovate, 2.5-3 mm, margin membranous, each 3- or 5-flowered. Pedicels longer than bracts, not articulate. Perianth pink or white; tepals elliptic, 3-4 mm. Anthers pinkish. Styles heterostylous. Achenes exceeding persistent perianth, dark brown, opaque, ovoid, sharply trigonous, 5-6 mm, surfaces flat. Fl. May-Sep, fr. Jun-Oct. 2n = 16*, 32*.

  • Provided by: [F].Flora Of CHina @ efloras.org
    • Source: [
    • 1
    • ]. 

    Stems ascending or erect, green or striped with pink or red, branched, (7-)15-90 cm. Leaves: ocrea brownish hyaline, loose, funnelform, 2-8 mm, margins truncate, eciliate, glabrous or puberulent proximally; petiole 1.5-6(-9) cm, usually puberulent adaxially; blade palmately veined with 7-9 primary basal veins, hastate-triangular, sagittate-triangular, or cordate, 2.5-8 × 2-8 cm, base truncate or cordate to sagittate, margins ciliolate, apex acute to acuminate. Inflorescences terminal and axillary, paniclelike, 1-4 cm, usually crowded at stem apices; peduncle 0.5-4 cm, puberulent in lines. Pedicels ascending or recurved, 2.5-4 mm. Flowers chasmogamous, heterostylous [homostylous]; perianths creamy white to pale pink; tepals elliptic to obovate, (2.5-)3-5 mm, margins entire, apex obtuse to acute; stamens ca. 1/ 2 as long as or slightly longer than perianth; styles 1.5-2 mm or 0.5-1 mm; stigmas purplish. Achenes uniformly light brown or streaked with dark brown or black, sharply 3-gonous, 4-6 × 4-6 mm, faces smooth, angles prominent, unwinged or essentially so, smooth or occasionally with blunt tooth in proximal 1/ 3. 2n = 16 (China).

  • Provided by: [E].Flora of North America @ efloras.org
    • Source: [
    • 2
    • ]. 

    "Annual, 2–6 dm, the stem pubescent in lines above; lvs broadly triangular-hastate, the lower long-petioled; fl-clusters usually crowded and compact to form a terminal, corymbiform infl; tep elliptic, obtuse, 2–3 mm, achene smooth and shining, 5–7 mm, with smooth, entire angles, much exceeding the tep. 2n=16. Commonly escaped from cult., but not long persistent. June–Sept. (F. sagittatum)"

  • Provided by: [A].New York Botanical Garden
    • Source: [
    • 3
    • ]. 

    Annual, up to 1 m tall herb, glabrous or young parts rarely minutely papillose. Stem ribbed, reddish. Leaves petiolate, petiole 0.5-2 cm long, grooved lower leaves with long petiole, upper ones subsessile; lamina triangular or sagittate, cordate, basal lobes rounded to acuminate, 1.5-10 x 1-8 cm. Ochrea 2-3 (-5) mm long, hyaline, pubescent near the base. Inflorescence axillary and terminal, pedunculate, many-flowerd corymbose cyme. Flowers pink or red, pedicelled, c. 1 mm across. Perianth segments 5-partite, ovate or oblong-ovate c. 3 x 2 mm broad. Stames 8, unequal, alternating with glands, c. 1.5 mm long. Ovary 3-angled; styles 3, as long as ovary. Nuts deeply 3-angled, angles acute, brown, smooth, narrowed at both the ends, 4-8 x 2.5-5 mm broad.

  • Provided by: [G].Flora of Pakistan
    • Source: [
    • 4
    • ]. 

    Morphology

    20–70 cm hoch, nicht oder wenig verzweigt. Blätter spiess- oder pfeilförmig, etwa gleich lang wie breit oder länger, die unteren lang gestielt, die obersten fast sitzend. Blütenstände ährig, dicht, gestielt, in Blattwinkeln. Perigonblätter 5

  • Provided by: [C].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 5
    • ]. 

    Annual herb, up to 0.6 m high. Leaves triangular-sagittate, cordate at base. Nut accrescent, pale brown, matt, sharply trigonous. Flowers white or cream.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 6
    • ]. 

    Annual herb, up to 0.6 m high. Stems erect. Leaves with blade triangular-sagittate, 40-100 x 20-100 mm, base cordate, apex acute. Ocrea 3-5 mm long, striate. Flowers: in bracteate, terminal or axillary, raceme-like panicles; perianth greenish white, tipped pink; Dec.-May. Fruit accrescent, nut at least twice as long as perianth, pale brown, matt, sharply trigonous.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 8
    • ]. 

    Herbe' annuelle, à tiges dressées, robustes et creuses, ± ramifiées, atteignant 0,40-0,75 m de haut, pubérulentes à glabres.' Feuilles' pétiolées et à pétiole atteignant 2-5 cm de long ou feuilles supérieures subsessiles à sessiles; limbe ovale, cordé-sagitté à la base, entier ou sinué, atteignant 7 cm de long et 6 cm de large, obscurément pubérulent à glabre; ochréas scarieuses, obliquement tronquées et atteignant 2-3 mm de long, glabres.' Racèmes' axillaires et longuement pédonculés, ou groupés en corymbes terminaux; bractées lancéolées, de 2,5-3 mm de long, glabres.' Fleurs' blanches à rosées, à pédicelle grêle dépassant longuement la bractée et glabre; périgone campanulé, de 3-4 mm de long, glabre, à 5 lobes oblongs-elliptiques; styles 3.' Akènes dépassant longuement le périgone, trigones, à faces ovales et lisses et à angles entiers, atteignant 6 mm de long, brunâtres.

  • Provided by: [D].Flore d'Afrique Centrale
    • Source: [
    • 9
    • ]. 

    Ecology

    7–9. Äcker, Wegränder, aus Kultur verwildert, kollin-montan. CH.

  • Provided by: [C].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 5
    • ]. 

    Habitat

    Disturbed areas.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 6
    • ]. 

    Dry Grassland. Disturbed areas.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 8
    • ]. 

    Distribution

    Native to Central Asia.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 6
    • ]. 

    Native to Central Asia.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 8
    • ]. 

    Originaire de la région du fleuve Amour et du lac Baïkal, cultivée et adventice dans toutes les régions tempérées du monde

  • Provided by: [D].Flore d'Afrique Centrale
    • Source: [
    • 9
    • ]. 

    Distribution Map

     
    • Introduced distribution
    Introduced into
    • Europe Northern Europe Ireland

    Nationally Preferred Names

    NameLanguageCountry
    Lus na gcearcIrishIE
    BuckwheatEnglishIE

    Other Local Names

    NameLanguageCountry
    Maol-chruithneachtIrishIE
    Gluneagh romhanIrishIE
    Sarrasin communFrenchCH
    RuadhanIrishIE
    Common buckwheat, sarrasin commun
    Graun saracen cuminRaeto-RomanceCH
    Echter BuchweizenGermanCH
    Grano saraceno comuneItalianCH

      Bibliography

     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
    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
    • B 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.
    • C All Rights Reserved
    Flore d'Afrique Centrale
    https://www.floredafriquecentrale.be
    • D http://creativecommons.org/licenses/by/4.0/ Attribution 4.0 International (CC BY 4.0)
    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.
    • E Flora of North America Association
    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.
    • F Missouri Botanical Garden
    Flora of Pakistan
    http://www.tropicos.org/Project/Pakistan
    Flora of Pakistan. Missouri Botanical Garden. Accessed on Jun. 2020.
    • G Missouri Botanical Garden
    Irish Vernacular Names
    https://www.missouribotanicalgarden.org/plant-science/plant-science/research-staff/article/380/wyse-jackson-peter-s.aspx
    • H All Rights Reserved
    Polygonaceae
    World Flora Online Data. 2017.
    • 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).