Okinawa name: sakuna, さくな
Japanese name: choumeisou, 長命草, botanboufuu, ボタンボウフウ, 牡丹防風
English name: long-life grass
Notes: it is known for its herbal medicinal properties and is supposed to be very healthy for you. It grows in the wild on the rock outcroppings of Yonaguni-jima in the Okinawa prefecture. Choumeisou contains abundant polyphenols to prevent arteriosclerosis, cancer, blood cholesterol and high blood pressure. The plant grows on wave-battered, sun-drenched cliffs exposed to the salty ocean air; the hardiness of the plant to survive such a harsh environment is astounding and it has long been a favorite of people as longevity food. The scientific name is Peucedanum japonicum; I have seen it used in diet/health drinks and smoothies. The herb, as well as products made from the leaves, is easily available in Okinawa.
Uses: salads, soups, anywhere you might use herbs.