Notwithstanding its elaborate tassel, the sugar cane ordinarily does not bear seed. Indeed, until somewhat recently, it was not known to bear seed at all. By rare exception, however, seed is occasionally formed; and the discovery that certain little grass-like plants in a sugar cane field were really seedlings of the sugar plant led to the development of a new variety with exceptional qualities. Ordinarily the sugar cane is propagated by division.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 8 Chapter 5