Description of the genus
Annual to perennial herbs, stiffly bristly-hairy. Inflorescence of terminal branched racemes. Sepals with inner pair slightly saccate. Petals yellow. Stamens 6.
Fruit of 2 segments: the lower slender, containing 0-2 seeds, separated from upper by a constriction; upper larger, 1-seeded and falling at maturity. Seeds ovoid.
Worldwide: 2 species in C Europe, the Mediterranean region and W Asia
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Other sources of information about Rapistrum:ePIC
(electronic Plant Information Center): RapistrumFlora Zambesiaca
web site: RapistrumGoogle
(Germplasm Resources Information Network) taxonomy for plants report for RapistrumIPNI
(International Plant Names Index): RapistrumKew Herbarium catalogue
Copyright: Mark Hyde, Bart Wursten and Petra Ballings, 2002-13
Hyde, M.A., Wursten, B.T. & Ballings, P.
. Flora of Zimbabwe: Genus page: Rapistrum.
http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=622, retrieved 22 May 2013