$Phaseolus \text{ } acontifolius$ is a:

Reserpine, an alkaloid or drug extracted from the roots of which of the following plants, cures mental disorders and reduces or checks blood pressure?

Which plant is considered a petroleum plant?

Atropine, which is used during eye examinations, is obtained from the leaves of which plant?

Leaf juice of which plant is given in chronic fever,haemorrhage,dysentery,and dyspepsia,and is also used to check vomiting?

The drug santonin is obtained from the flowers of