the poppy bulb containes a number of opiates from which herion is made... no reason you can't just use the neat opium. In my opinion the opium would be the safer choice.
I have a bag ful of seeds here... just waiting for the season to turn... yum....
No, no it isn't. Erythroxylum Coca is the plant that has active cocaine alkaloids (benzoylmethyl ecgonine).
Papaver Somniferum (Opium Poppies) are the plant that opium, hence morphine, and lastly heroin (once the morphine is separated and acetylated) are derived from.