I would have to say both! Either these or the moon flowers, not sure which, my eyes swell up from them. It has happened a number of times and it does go away and maybe that is just me. They do say that all parts of the plants are poisonous. Lots of info available on the internet!
Just looked it up... seems that it is a medicinal plant when used carefully... and deadly in an overdose. It is a known hallucinogen and Can irritate the skin on contact.
It is a lovely flower sstill debating on this one, be my lucky I would bethe one poison by accident of course. Watching Happy New Years everybody happy bidding