Quiz: Remember the definition of mal de mer?
any of several unrelated but similarly leaved plants. Cyperus alternifolius (family Cyperaceae), also called umbrella palm and umbrella sedge, is widely cultivated in water gardens and as a potted plant. It grows up to 1 m (3 feet) high. Native to Madagascar, Reunion, and Mauritius, it is widely naturalized in the tropics and subtropics.