Brassica tournefortii Gouan
  • Ill. Observ. Bot.
  • Sahara mustard


Cite taxon page as 'WFO (2021): Brassica tournefortii Gouan. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000571745. Accessed on: 21 Sep 2021'

General Information

Annuals; densely hirsute proximally, glabrescent distally. Stems usually branched basally, (widely) branched distally, (1-) 3-7(-10) dm. Basal leaves: (rosettes persistent); petiole (broad) 2-10 cm; blade lyrate to pinnatisect, 2-30 cm × 10-50 (-100) mm, (margins serrate-dentate), 4-10 lobes each side. Cauline leaves sessile; blade (reduced in size distally, distalmost bractlike), base tapered, not auriculate or amplexicaul. Racemes not paniculately branched. Fruiting pedicels widely spreading, 8-15 mm. Flowers: sepals 5-4.5 × 1-1.5 mm; petals pale yellow, fading or, sometimes, white, oblanceolate, 4-7 × 1.5-2(-2.5) mm, claw 1-3 mm, apex rounded; filaments 2.5-4 mm; anthers 1-1.3 mm; gynophore to 1 mm. Fruits (shortly stipitate); widely spreading to ascending (not appressed to rachis), torulose, cylindric, 3-7 cm × 2-4(-5) mm; valvular segment with 6-12(-15) seeds per locule, 2.2-5 cm, terminal segment 1(-3)-seeded, (cylindric, stout), 10-20 mm. Seeds light reddish brown or black, 1-1.2 mm diam.; seed coat prominently reticulate, mucilaginous when wetted. 2n = 20.

  • Provided by: [D].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    Annual, (10-) 20-70 cm tall, erect, mostly branched above, hairy below with long ciliate white hairs; branches almost aphyllous. Basal leaves rosulate, runcinate-pinnatifid, 4-12-jugate, shortly petioled, hispid; terminal lobe often small, obliquely cordate, ± trilobate, sinuate-dentate; lateral lobes narrow, ± oblong, often sub-recurved; upper leaves much smaller, few, oblong or linear, 10-30 mm long, 4-8 mm broad, dentate or entire, acute, ± hairy. Racemes 10-20-flowered, lax, increasing up to 30 cm in fruit. Flowers 4-7 mm across, pale yellow; pedicel 2-6 (-9) mm long, increasing up to 20 mm (rarely more) and slightly thickened in fruit, spreading. Sepals c. 3 mm long, 1.5 mm broad, oblong, obtuse. Petals 4.5-6.5 mm long, 1.5 mm broad, oblong-obovate, apex rounded, pale yellowish, often with dark veins. Stamens c. 3:4 mm long; anthers c. 1 mm long. Siliquae 35-65 mm long, 2-3 mm broad, linear-oblong, including 10-20 mm long, smooth, usually 1-seeded, slightly tapering beak, often slightly curved at the apex, ± glabrous, subtorulose; valve with a prominent mid-vein; stigma sessile, depressed-capitate, subemarginate; seeds uniseriate, many, c. 1 mm in diam., globose, dark brown, finely tuberculated, mucilaginous when wet.

  • Provided by: [B].Flora of Pakistan
    • Source: [
    • 2
    • ]. 

    Morphology

    Erect, rather slender annuals up to 60 cm high; lower part of stem densely hispid or patently hairy, upper part subglabrous or glabrous. Basal leaves rosulate, petiolate, up to 25 cm long, runcinate-pinnatisect, 4-12-jugate, ciliate and densely hispid beneath; lower lobes smallest, upwards gradually bigger, ± oblong, dentate or serrate-dentate; terminal lobe broadly ovate to subcircular, obtuse, lobulate, serrate-dentate. Upper leaves much smaller, sessile, oblong-lanceolate to linear, acute, entire or denticulate. Racemes terminal, at first dense, in fruit very lax. Flowers pale yellow, sometimes tinged with mauve on fading, the petals 5-7 x ±1.5 mm, spathulate. Fruiting pedicels erect to spreading or the lower ones ± recurved, 1.5-2 cm long. Siliquae 3-5 cm long (incl. beak), 2-2.8 mm broad, linear-attenuate; valves bulged by the seeds; beak 1-2 cm long, straight or curved, stoutly subulate, 0- or 1-seeded at its base. Seeds globose, brown, about 1 mm in diameter.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Slender annual, up to 600 mm tall, densely hispid in lower part, ± glabrous above. Leaves in a basal rosette, divided with 4-12 pairs, upper leaves undivided. Flowers in a raceme, pale yellow. Fruit linear attenuate, 30-50 x 2-2.8 mm, with beak 10-20 mm long, valves bulging with seeds.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 5
    • ]. 

    Habitat

    And reported to be common or abundant on sand-dunes and in disturbed place.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Sandy soils.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 5
    • ]. 

    Distribution

    A native of the maritime Mediterranean region. Frequently collected in the Gordon's Bay-Strand area during 1941-48. First recorded in South Africa in 1897.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Coast to E Cape, native to Mediterranean coast.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 5
    • ]. 

    Other Local Names

    NameLanguageCountry
    Sahara mustard

      Bibliography

     Information From

    Brassicaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of Pakistan
    http://www.tropicos.org/Project/Pakistan
    Flora of Pakistan. Missouri Botanical Garden. Accessed on Jun. 2020.
    • 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
    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
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).