|This exists primarily or exclusively within the Pre-Super Genesis Wave continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Poison Sumac Blossoms are plants in Poison Flower Valley that causes urushiol-induced contact dermatitis (an itching rash).
If a person who is extremely allergic to this plant, such as Sonic the Hedgehog, makes contact with it, they will immediately begin to get an itching rash that once scratched enough, causes the person to swell up like a balloon. An ointment for this was made by the aunt of the famous Freedom Fighter Bunnie Rabbot named Lulumae, which is made from cornmeal paste with cloves, kudzu root, bramble berry pits, and eye of newt with some other unmentioned ingredients. (StH: #9)
- Poison sumac is a real plant, and does indeed contain the allergen urushiol that causes urushiol-induced contact dermatitis.