I don't know about all of these plants ,but the potato and tomato plant 
themselves are piosonous but not the fruit on them.
  ----- Original Message ----- 
  From: BROOKS BRADLEY 
  To: [email protected] 
  Sent: Sunday, April 01, 2001 11:54 PM
  Subject: Re: CS>Amaranth


                         No, the publishers are not joking.  All of these 
plants are members of the nightshade family.  They do, in certain cases, 
exhibit various degrees of toxcity to human beings.  One of the most common 
symptoms is the occurrence of arthritic conditions. 
                                          Sincerely,  Brooks Bradley. 
  [email protected] wrote: 

    Followed this link and found some curious things listed as poisonous? 
    http://cal.vet.upenn.edu/poison/ppstcommon.htm 

    Like tomato, onion, rhubarb, potato.  Is this for real or somebody having 
    fun? 

    suzy