Not only is it nice to look at, but Stilbocarpa polaris also can prevent scurvy. Native to the subantarctic islands of New Zealand as well as Macquarie Island in Australia, this member of the ivy family is commonly known as Macquarie Island Cabbage. A megaherb, it grows up to about a meter tall. It was a food source for early explorers and sealers, with an added benefit of preventing scurvy when consumed. The plant’s name translates to shining seed.
For more: How We Found Out About Megaherbs