: Often called the "suicide plant," it is arguably the most painful plant in the world.
: Found primarily in rainforest areas of Queensland and northern New South Wales.
Other plants referred to as nettles are smaller and less dangerous, though they still possess stinging hairs.
: Its heart-shaped leaves are covered in microscopic, needle-like silica hairs that inject a potent neurotoxin. The pain is described as being simultaneously electrocuted and burned with hot acid.
The most notorious "Australian nettles" are the stinging trees, particularly those in the genus Dendrocnide . These plants are known for their extreme toxicity.