Immortal

The longest-lived leaves in the plant kingdom can be found only in the harsh, hyperarid desert that crosses the boundary between southern Angola and northern Namibia. A desert is not, of course, the most hospitable place for living things to grow, let alone leafy greens, but the Namib Desert - the world's oldest, with parts receiving less than 2 inches of precipitation a year - is where Welwitschia calls home.