Figure 4

Chromatograms of bioactive crude extracts from respective plant parts: (A) bulb, (B) scape and flowers, (C) leaves, and (D) shoots. Highlighted peaks labelled with their retention time represent the “biomarker” metabolites determined for the respective plant parts of British bluebells as shown in Table 2. The other labelled peaks were those found to be the common metabolites in the bioactive extracts.