We all know that Giant Hogweed contains photo toxins that when humans are exposed to it develop rashes and in some cases permanent blindeness. I have been conducting some research and my question is: Do other members of the Apiaceae family also contain harmful photo toxins? If so what is the severety of the photo toxins found in other species compared to the Giant Hogweed? If you can answer my question or provide a link that would be great.

Thanks,
Troy Pine