periwinkle _catharanthus roseus_ & x28;l.& x29;

_catharanthus ajmalisin akuammine alkaloid catharanthine content cure disease flowers have hodgkins ingredients leaves leukemia leurosine lochnerine norharman other periwinkle potential reserpine roseus_ serpentine tetrahydroalstonine vinblastine vincamine vincristine vindoline vindolinine vinleurosin vinrosidine