It came up on Reddit today, so let's all take a moment to appreciate Gympie-Gympie, an #Australian stinging tree.
https://en.wikipedia.org/wiki/Dendrocnide_moroides
Covered in tiny hairs that penetrate skin and cause agonising stinging that can recur for YEARS.
If you break any of the tiny hairs while attempting to remove them, it hurts MORE.
Recommended treatment for exposed skin is hydrochloric acid.
Animals have been reported to have run off of cliffs after being stung.
Has tasty, pink, edible berries.