Figure 5

HPLC-UV chromatograms recorded at 340 nm of C. obtusifolia O2 (a), C. peltata P2 (b), C. insignis I1 (c) and C. hispidissima H1 (d).

HPLC-UV chromatograms recorded at 340 nm of C. obtusifolia O2 (a), C. peltata P2 (b), C. insignis I1 (c) and C. hispidissima H1 (d).