Brassica napus L.
  • Sp. Pl.
  • Canola, oilseed rape, rape, rapeseed, rutabaga, swede, swede rape, Swedish turnip


Cite taxon page as 'WFO (2020): Brassica napus L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000571271. Accessed on: 04 Apr 2020'

General Information

2. Brassica napus L., Sp. Pl. 666 (1753). Lectotipo (designado por Jonsell, 1982): “Habitat in arenosis maritimis Gotlandiae, Belgii, Angliae”, Herb. Linn. 844.10 (LINN!). Ilustr.: Wu et al., Fl. China Ill. 8: 6, t. 6 (2003).

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

Hierbas anuales o bianuales, glabras o esparcidamente hirsutas basalmente, frecuentemente glaucas, con raíces carnosas o sin estas. Tallos 30-150 cm, erectos, ramificados distalmente. Hojas caulinares basales y más proximales 5-25(-40) × 2-7(-10) cm, ovadas, oblongas o lanceoladas, pinnatilobadas o liradas, algunas veces no divididas, los lobos laterales 1-6 en cada lado de la lámina, enteros, repandos o dentados; pecíolo 15 cm; hojas caulinares distales c. 8 × 3.5 cm, lanceoladas, ovadas u oblongas, la base amplexicaule o auriculada, los márgenes enteros o repandos, sésiles. Flores en la antesis dispuestas muy por debajo de los botones florales. Pedicelos en fruto (1-)1.2-2.3(-3) cm, rectos, divaricados. Sépalos (5-)6-10 mm, ascendentes o rara vez suberectos; pétalos (9-)10-16(-18) × (5-)6-9(-10) mm, anchamente obovados, amarillo claro o color crema, el ápice redondeado, unguiculado, la uña 5-9 mm. Frutos (35-)50-95(-110) × (2.5-)3.5-5 mm; región valvar (30-)40-85(-95) mm, con 12-20(-30) semillas por lóculo, las valvas con la vena central prominente; rostro (5-)9-16 mm, cónico, sin semillas o con 1 semilla; semillas (1.2-)1.5-2.5(-3) mm de diámetro. n = 19. Cultivada. Ch (Breedlove 50068, CAS); G (Aguilar 415, F); CR (Antonio 659, MO). 1400-3000 m. (Nativa de Europa, se desconocen poblaciones silvestres.)

Esta especie desconocida en estado silvestre, quizá evolucionó en el siglo XVI como un alotetraploide derivada de Brassica oleracea y B. rapa. Es ampliamente cultivada para la obtención de aceite de canola (B. napus var. napus) y de raíces comestibles conocidas como rábanos (B. napus var. napobrassica (L.) Rchb.).

  • Provided by: [F].Flora Mesoamericana
    • Source: [
    • 1
    • 14
    • ]. 

    Herbs annual or biennial, 30-150 cm tall, glabrous or basally sparsely hirsute, often glaucous, with or without fleshy taproots. Stems erect, branched above. Basal and lowermost cauline leaves long petiolate; petiole to 15 cm; leaf blade ovate, oblong, or lanceolate in outline, 5-25(-40) × 2-7(-10) cm, pinnately lobed or lyrate, sometimes undivided; terminal lobes ovate, dentate, repand, or entire; lateral lobes 1-6 on each side of midvein, much smaller than terminal one, entire, repand, or dentate, sometimes absent. Upper cauline leaves sessile, lanceolate, ovate, or oblong, to 8 × 3.5 cm, base amplexicaul, auriculate, margin entire or repand. Fruiting pedicels straight, divaricate, (1-)1.2-2.3(-3) cm. Sepals oblong, (5-)6-10 × 1.5-2.5 mm, ascending or rarely suberect. Petals bright or pale yellow, (0.9-)1-1.6(-1.8) cm × (5-)6-9(-10) mm, broadly obovate, apex rounded; claw 5-9 mm. Filaments (5-)7-10 mm; anthers oblong, 1.5-2.5 mm. Fruit linear, (3.5-)5-9.5(-11) cm × (2.5-)3.5-5 mm, terete or slightly 4-angled, sessile, divaricate or ascending; valvular segment (3-)4-8.5(-9.5) cm, 12-20(-30)-seeded per locule; valves with a prominent midvein, slightly torulose or smooth; terminal segment conical, (0.5-)0.9-1.6 cm, seedless or 1-seeded; style often obsolete. Seeds dark brown or blackish, globose, (1.2-)1.5-2.5(-3) mm in diam., minutely reticulate. Fl. Mar-Jun, fr. Apr-Jul. 2n = 38*.

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

    Annuals or biennials; (taproot slender or swollen); (glaucous), glabrous, glabrescent, or pubes-cent, (trichomes coarse). Stems branched distally, 3-13 dm. Basal leaves (rosulate when biennial); petiole (often winged), to 15 cm; blade lyrate-pinnatifid, ± pinnately lobed, 5-25(-40) cm × 20-70(-100) mm, lobes 0-6 each side, (smaller than terminal), surfaces (glaucous), glabrous or sparsely hairy when immature, glabrescent, or, rarely, pubescent. Cauline leaves (middle and distal) sessile; blade base auriculate or amplexicaul, (margins entire). Racemes not paniculately branched, (buds overtopping or equal to open flowers). Fruiting pedicels spreading to ascending (slender), 1-3 cm. Flowers: sepals (5-)6-10 × 1.5-2.5 mm; petals golden or creamy to pale yellow, broadly obovate, 10-16 × (5-)6-9(-10) mm, claw 5-9 mm, apex rounded; filaments (5-)7-10 mm; anthers 1.5-2.5 mm. Fruits spreading to ascending, smooth or slightly torulose, terete, (3.5-)5-10(-11) cm × (2.5-)3.5-5 mm; valvular segment with 12-20(-30) seeds per locule, (3-)4-8.5(-9.5) cm, terminal segment usually seedless, rarely 1 or 2-seeded (attenuate-conic, thin), (5-)9-16 mm. Seeds dark brown to black, light brown, or reddish, 1.8-2.7(-3) mm diam.; seed coat finely reticulate-alveolate, not mucilaginous when wetted. 2n = 38.

  • Provided by: [D].Flora of North America @ efloras.org
    • Source: [
    • 13
    • ]. 

    Morphology

    Very similar to B. rapa but basal leaves glaucous, glabrous or very sparsely hispidulous especially along the nerves, open flowers not overtopping buds, sepals ascending, petals 10–18 mm. long.

  • Provided by: [C].Plants Of the World Online Portal - FTEA
    • Source: [
    • 11
    • ]. 

    Synonyms

    Other Local Names

    NameLanguageCountry
    Canola, oilseed rape, rape, rapeseed, rutabaga, swede, swede rape, Swedish turnip

     Information From

    Brassicaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    MBG Floras Images
    http://www.tropicos.org/ImageSearch.aspx
    Flora images. Missouri Botanical Garden. Accessed on Jun. 2018.
    • B 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
    • C
    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.
    • D 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.
    • 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
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • G CC0 1.0 Universal (CC0 1.0).