Kewa acida

Kewa acida, commonly called the Salad Plant, is one of the eight species currently recognized in the genus Kewa, the sole genus in the family Kewaceae. It is a bushy grey-leaved annual or short-lived perennial plant, with white flowers, endemic to St Helena. It is regarded as Critically Endangered. The succulent leaves are high in Vitamin C and were used by sailors in the past as a scurvy preventative.