The Samurai sheathes his katana and limps off into the distance. The coriaceous leaves are sessile, arising from clasping sheathes which cover the stem. Clocks, storage containers, calligraphy brushes, and sword sheathes are also produced. Royal rencong have sheathes of ivory and blade made from gold, engraved with Quranic verses. The panicles are borne in the basal sheathes. These crests would have been covered by keratin sheathes. The base of the leaves typically sheathes the stem. It also lacks the hairy leaf sheathes of "C. cyanea". The stem is erect and hard at the shaft, the sheathes being smooth and cylindrical. Leaf sheathes grow up around it, protecting it. The leaves are broad and tapering, and the sheathes are very rough. Leaf sheathes typically occur in grasses and Apiaceae (umbellifers).