"luke" wrote
i have been doing research into poisonous plants and i have hit a stone

what is the MOST toxic plant in the world. some websites say it is the
castor bean some say it is the roseary pea but some people say it
deadly nightshade(atropa belladona) i just dont know

I would have thought some of the Fungi would be the most poisonous plants in
the world but it depends on your criteria, are you asking for the quickest,
the most certain, the nastiest......
The "Destroying Angel" or "Deaths Cap" toadstool will kill you slowly and
painfully over about a week as your vital organs close down, and there is
not much chance of survival after the symptoms show which is some
considerable time after eating them.

See http://www.cfsan.fda.gov/~mow/chap40.html and Amatoxins half way down.

--
Regards
Bob H
17mls W. of London.UK