Malaysian cabbage (Brassica chinensis var. Parachinensis
[Sinskaja]), and beggar’s tick (Bidens pilosa L.) seedlings,
as well as evaluating the phytotoxicity through the determination
of the mitotic index of meristematic root cells of the
plants cited above; quantification of phenols, flavonoids and
caffeine; and determination of the antioxidant activity of all
extracts.