Oh, that's an interesting possibility. For example, the manchineel (also known as death apple) tree is dangerous and can cause blistering/burning of the skin. It is native to Caribbean islands, and the sap is very toxic. According to a quick google search, it can be found on SXM.

https://www.treehugger.com/why-manchineel-might-be-earths-most-dangerous-tree-4868796