What's a yellow flower that people can be allergic to?

My wife works in advertising and the client requested that she find a yellow flower that can cause allergies.

What's a yellow flower that people can be allergic to?
Ragweed
Reply:people can be alergic to all flowers so that a hard question to answer discribe it
Reply:lilacs can cause allergics because of there smell.my mother nose starts to bleed when she smells them.could that be the one ur looking for but it isnt a flower its a bush but it goes flowers on it.
Reply:Rape flowers have a very high allergy rate. They are very potent smelling and produce a lot of pollen for their size.
Reply:My first guess would be Goldenrod, but here is a whole page of yellow flowers... http://uptreeid.com/Roadweeds/FlowersYel... or http://dereila.ca/flowers/yellow.htm





Here is another page of yellow flowers with their blooming times: http://www.und.edu/org/soaringeagleprair...
Reply:Goldenrod is one of the worst, it has a lot of pollen.
Reply:People can be allergic to anything. I have afriend whose allergic to marigolds.
Reply:Any flower can cause allergies, it depends on if the person is allergic to it. Maybe she should find out what the person is allergic to before she finds the flower. Might make things easier. If there are no allergies, try sunflowers, dandelions or yellow roses.