My gf had an skin allergy/reaction to a flowering plant whilst at my niece's naming ceremony today. I couldn't for the life of me remember the name of the flowering plant we were sitting next to (which she came into contact with) so I googled poisonous plants etc until I found it. It was a Hydrangea, so nothing to serious. But I found this website which lists all the toxic/poisonous plants we have locally. I was astounded at how many are actually in local parks and in peoples front gardens. Oleander is everywhere here in Adelaide, even in my back yard
I thought I should share this site, as there are a few species used for bonsai which can be toxic e.g wisteria, cotoneaster etc
One of the most toxic of all the plants used in Bonsai is the beautiful Azalea, the flowers the leaves are toxic. I personaly am allergic to the Rhus trees even in the same room , I attended an exhibition where one was on display and broke out in a rash.
Sorry to be sensible, but just because a plant is on a list doesn't mean that you have a problem. Most people don't react to anything, some people react to specific things (wattle makes you sneeze, rhus trees give you a rash etc.) and a few Lucky People react to just about everything. No-one's sure why the problem is growing, but, like the increasing rate of asthma, I suspect it's because we keep breathing burnt petrol fumes all day. If your kids have a history of asthma, excema, or hayfever, it might be useful to know what they are reacting to - if they don't, they're not as likely to have a problem.
And yes, I'm one of the Lucky ones. One of my favourites is the dust and mould that lurk in carpets - completely unavoidable, but they knock me round badly. That's just me - most people don't have a problem.