This is indeed the tree I was thinking of, and yes it’s the sap that’s toxic. Dry bark should be safe to touch, but it does weep sap through its bark. The interior wood, leaves, and fruit all contain the sap, so you should absolutely not interact with those without protection.
Yes, I read the article. But mentalfloss is not a reliable source.
https://edis.ifas.ufl.edu/publication/FR370
This is indeed the tree I was thinking of, and yes it’s the sap that’s toxic. Dry bark should be safe to touch, but it does weep sap through its bark. The interior wood, leaves, and fruit all contain the sap, so you should absolutely not interact with those without protection.