Snowdonia Hawkweed

Snowdonia Hawkweed (Hieracium snowdoniense)

It may not be smelly, oversized or weird looking, but Snowdonia Hawkweed may just be the rarest plant in the world. Botanists thought it had gone extinct decades ago, but in 2002 it wasrediscovered growing on a mountain slope in Wales. "We were literally capering about for joy on the mountain ledges like lunatics when we found it," said Tim Rich, head of vascular plants at the National Museums and Galleries of Wales.

Fun Fact 

Amazingly, it was rediscovered in 2002 after a 35-year period when it was thought to be extinct.