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By: Stirton, C. H. - Muasya, Muthama - Vlok, JanType: ArticleIn: PhytoKeysVolume: 17Series:Issue:Date: 2012Page Range: 19-23Publication Info: Pensoft Publishers 2012Subjects: Fabaceae Klein Karoo Leguminosae new species Psoralea Psoraleeae South Africa taxonomy