56. Pain Bush

In case you couldn’t tell by its moniker, the pain bush is a plant to be avoided at all costs. It’s found in South Africa and is sometimes referred to as African poison ivy. Anyway, Britannica revealed that the bush releases toxins called heptadecyl catechols via its sap. By touching it, you’ll be left with a “livid swollen rash” and some blistering for a number of days.