Sinapis alba L.
  • Sp. Pl.
  • Senape bianca

Cite taxon page as 'WFO (2021): Sinapis alba L. Published on the Internet; Accessed on: 26 Oct 2021'

General Information

Herbs (15-)25-100(-220) cm, retrorsely hispid, rarely glabrescent. Stems erect, often branched above. Petiole of basal and lower cauline leaves 1-3(-6) cm; leaf blade oblong, ovate, or lanceolate in outline, lyrate, pinnatifid, pinnatisect, (3.5-)5-14(-16) × 2-6(-8) cm; terminal lobe broadly ovate, (1-)3-6 cm, usually 3-lobed, margin dentate; lateral lobes 1-3 on each side of midvein, oblong, ovate, or lanceolate, 1.5-2.5 cm, margin dentate, repand, or rarely pinnatifid. Upper cauline leaves shortly petiolate; leaf blade ovate or oblong-ovate, 2-4.5 cm, margin coarsely dentate, rarely subentire. Fruiting pedicels divaricate, stout, (3-)6-12(-17) mm. Sepals yellow or green, narrowly oblong, (3.8-)4-7(-8) × 1-1.8 mm, spreading or reflexed. Petals pale yellow, obovate, (0.7-)0.8-1.2(-1.4) cm × (3-)4-6(-7) mm. Filaments (3-)4-7(-8) mm; anthers oblong, 1.2-1.5 mm. Fruit lanceolate, (1.5-)2-4.2(-5) cm × (2-)3-5.5(-6.5) mm; valvular segment (0.5-)0.7-1.7(-2) cm, 2-5-seeded in each locule, 3-5(-7)-veined, torulose, terete or slightly compressed, hispid with subsetose trichomes mixed with much shorter and more slender ones; terminal segment ensiform, strongly compressed, (1-)1.5-2.5(-3) cm, straight or curved upward, seedless or 1(or 2)-seeded. Seeds gray, pale brown, or reddish brown, globose, (1.7-)2-3(-3.5) mm in diam., finely reticulate. Fl. and fr. May-Sep. 2n = 24*.

  • Provided by: [J].Flora Of CHina @
    • Source: [
    • 2
    • ]. 

    Plants usually hispid, rarely glabrous. Stems often branched distally, (0.15-)0.25-1(-2.2) dm. Basal leaves: petiole 1-3 (-6) cm; blade oblong, ovate, or lanceolate (in outline), (3.5-)5-14(-20) cm × 20-60(-80) mm, margins lyrate, pinnatifid, pinnatisect; lobes 1-3 each side, (oblong, ovate, or lanceolate, 1.5-2.5 cm), margins usually dentate or repand, rarely pinnatifid. Cauline leaves (distal) shortly petiolate; blade (ovate or oblong-ovate, 2-4.5 cm), margins coarsely dentate, rarely subentire. Fruiting pedicels divaricate, (3-)6-12(-17) mm. Flowers: sepals (3.8-)4-7(-8) × 1-1.8 mm; petals pale yellow, (7-)8-12(-14) × (3-)4-6(-7) mm; filaments (3-)4-7(-8) mm; anthers 1.2-1.5 mm. Fruits lanceolate, (1.5-)2-4.2(-5) cm × (2-)3-5.5(-6.5) mm; valvular segment terete or slightly flattened, (0.5-)0.7-1.7(-2) cm, 2-5-seeded per locule; terminal segment ensiform, flattened, (1-)1.5-2.5(-3) cm, equal to or longer than valves, seedless; valves hispid, trichomes of 2 types (subsetiform mixed with shorter, slender ones). Seeds pale yellow to pale brown, (1.7-)2-3(-3.5) mm diam. 2n = 24.

  • Provided by: [G].Flora of North America @
    • Source: [
    • 3
    • ]. 

    1. Sinapis alba L., Sp. Pl. 668 (1753). Lectotipo (designado por Jafri, 1973): “Habitat in agris Belgii, Angliae, Galliae”, Herb. Linn. 845.4 (LINN!). Ilustr.: Jafri, Fl. Lybia 23: 25, t. 4 (1977).

    Por I.A. Al-Shehbaz y S. Fuentes-Soriano.

    Brassica alba (L.) Rabenh., B. hirta Moench.

    Hierbas anuales, híspidas o rara vez glabras. Tallos (1.5-)2.5-10(-22) cm, erectos. Hojas basales (3.5-)5-14(-20) × 2-6(-8) cm, oblongas, ovadas o lanceoladas, liradas, pinnatífidas, pinnatisectas, los lobos laterales 1-3 en cada lado de la lámina, 1.5-2.5 cm, oblongos, ovados o lanceolados, los márgenes dentados, repandos o rara vez pinnatífidos; pecíolo 1-3(-6) cm; hojas caulinares más distales 2-4.5 cm, ovadas u oblongo ovadas, los márgenes marcadamente dentados, rara vez subenteros, con un pecíolo corto, esparcidamente pelosas. Pedicelos en fruto (3-)6-12(-17) mm, divaricados, robustos. Sépalos (3.8-)4-7(-8) mm, angostamente oblongos, amarillos; pétalos (7-)8-12(-14) × (3-)4-6(-7) mm, obovados, amarillo pálido. Frutos (15-)20-42(-50) × (2-)3-5.5(-6.5) mm, lanceolados, el segmento valvar (5-)7-17(-20) mm, con 2-5 semillas en cada lóculo, con 3-5(-7) venas, toruloso, terete o escasamente comprimido, híspido con tricomas subsetosos mezclados con tricomas mucho más cortos y delgados, el segmento apical (10-)15-25(-30) mm, ensiforme, marcadamente comprimido, sin semillas, tan largo como el segmento valvar o más largo que este; semillas (1.7-)2-3(-3.5) mm de diámetro, globosas, amarillo pálido a pardo pálido, finamente reticuladas. n = 12. Floración mar.-sep. Escapada de cultivos, orillas de caminos, sitios alterados, campos de granos, jardines, frutales. ES (Calderón 531, US). Por arriba de 0 m. (Cosmopolita.)

  • Provided by: [I].Flora Mesoamericana
    • Source: [
    • 4
    • 1
    • ]. 

    "Rough-hairy annual 3–7 dm; lvs obovate in outline, the lower to 2 dm, lyrate, the upper progressively reduced, less lobed or merely toothed; fls 1.5 cm wide; maturepedicels divergent, 6–15 mm; frs divergent or ascending, commonly bristly at least when young, the body 10–15 mm, the valves much distended over the 4–8 seeds; beak 1–2 cm, flat, often curved; seeds smooth, 2 mm; 2n=24. A European weed, now found occasionally in fields and waste places in our range, sometimes cult. for its seeds. (Brassica alba; B. hirta)"

  • Provided by: [H].New York Botanical Garden
    • Source: [
    • 5
    • ]. 

    Annual, up to 75 (-100) cm tall, erect, branched, usually stiffly hairy with simple subdeflexed hairs. Lower leaves 5-15 cm long, 2-6 cm broad, ± hispid, lyrate, 2-3-jugate, stalked; the terminal lobe much larger than the laterals, usually 3-lobulate, coarsely and irregularly toothed; upper leaves shortly stalked, sub-equally lobulate, sinuate-dentate. Racemes many flowered, ebracteate, up to 30 cm long in fruit. Flowers c. 10 mm across, yellow; pedicel up to 14 mm long in fruit, spreading or subdeflexed. Sepals 4-5.5 mm long, 1-1.5 mm. broad, oblong, subspreading yellowish. Petals 7-12 mm long, 3.5-5 mm broad, obovate, clawed. Stamens 4-5: 5-7 mm long. Siliquae 20-40 mm long, 3-4 mm broad (including beak about as long or longer than the valves), sub-cylindrical, torulose, bristly hairy; beak ± compressed, sabre-shaped, often curved and 0-1-seeded; valve strongly 3. parallel veined; septum sub-membranous, thick, not veined; seeds 1-4 in each locule, globose, about 2 mm in diam., finely alveolate, pale brownish.

  • Provided by: [E].Flora of Pakistan
    • Source: [
    • 8
    • ]. 


    Ähnlich wie S. arvensis, aber Blütenstiele mindestens so lang wie die Kelchblätter (bei S. arvensis höchstens so lang), Kronblätter 7–10 mm lang, Schoten 3–4 mm dick, stark borstig, 4–8samig, Schnabel 10–25 mm lang, deutlich abgeflacht

  • Provided by: [D].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 6
    • ]. 

    Erect, usually branched herbs 30-60 cm high. Stems densely retrorsely hairy below, sparsely above, rarely glabrous. Leaves all petiolate, lyrate-pinnatisect or pinnatifid, 2-3-jugate, the lateral lobes ± oblong to lanceolate, serrate-dentate or ± repand; terminal lobe similar, larger, hispid. Flowers yellow, the petals 7-9 mm long. Fruiting pedicels eventually horizontally spreading. Siliquae 2-4 cm long (including the beak), 3-4 mm broad; valves 3-5-nerved, hispid, bulged by the seeds; beak 1-2.5 cm long, flattened, ensiform, ribbed, frequently 1-seeded. Seeds 4-8, globose, 1.7-2.3 mm in diameter, yellow or pale brown, seed-coat minutely punctate.

  • Provided by: [F].e-Flora of South Africa
    • Source: [
    • 7
    • ]. 


    6–10. Äcker, Wegränder, Ödland, in wärmeren Lagen, früher als Futterpflanze kultiviert und verwildert, kollin-montan.

  • Provided by: [D].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 6
    • ]. 


    An occasional weed of cultivation.

  • Provided by: [F].e-Flora of South Africa
    • Source: [
    • 7
    • ]. 


    A native of the Mediterranean region, now widespread in Europe and other continents. Also found in South Africa.

  • Provided by: [F].e-Flora of South Africa
    • Source: [
    • 7
    • ]. 

    Other Local Names

    Senape biancaItalianCH
    Moutarde blancheFrenchCH
    White mustard
    Weisser SenfGermanCH

     Information From

    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    MBG Floras Images
    Flora images. Missouri Botanical Garden. Accessed on Jun. 2018.
    • B Missouri Botanical Garden
    • C Missouri Botanical Garden
    Flora Helvetica – Illustrierte Flora der Schweiz
    Flora Helvetica – Illustrierte Flora der Schweiz, Konrad Lauber, Gerhart Wagner, Andreas Gygax. Haupt Verlag 2018.
    • D All Rights Reserved
    Flora of Pakistan
    Flora of Pakistan. Missouri Botanical Garden. Accessed on Jun. 2020.
    • E Missouri Botanical Garden
    e-Flora of South Africa
    e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute.
    • F All Rights Reserved
    Flora of North America @
    'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • G Flora of North America Association
    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.
    • H Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Flora Mesoamericana
    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
    • I Missouri Botanical Garden
    Flora Of CHina @
    'Flora of China @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • J Missouri Botanical Garden
    World Flora Online consortium
    World Flora Online Data. 2018.
    • K CC0 1.0 Universal (CC0 1.0).