Fig. 5.3-18. Transverse section of leaf of sugar cane (Saccharum officinale). Even leaves that are much smaller, thinner and more delicate than those of yuccas or dracaenas often have masses of fibers along their edges, as seen here along the margin of this sugar cane leaf. Because the edge is reinforced with extraxylary fibers rather than just consisting of parenchyma, it is much less likely to be torn by wind.